CN1384899A - Water closet, water drain device thereof, and toilet having the water closet and the water drain device - Google Patents

Abstract

A water closet (10), comprising a bowl part (20), a connection path (31), an upward path (32) and, through a dam (34), a downward path (33) connected in series in that order, the downward path (33) further comprising an expanded part (33a) with increased pipe line diameter and an end restricted part (33b) with an opening area smaller than that of the expanded part (33a) both connected to the end portion thereof and being connected to a drain socket (70), the drain socket (70) further comprising a drain pipe socket part (72) installed so as to be positioned in a drain pipe (90) and forming, by a drain pipe socket part (72), a siphon action inducing part having a socket expansion part (75) with increased pipe line diameter and a restricted line part (76) with reduced diameter, below a toilet floor surface (FL).

Description

Water closet and its drainage device and toilet with them

technical field

The present invention relates to a flush toilet that induces a siphon action to discharge dirt in a bedpan, a drainage device for inducing the siphon action, and a toilet in which the flush toilet is installed.

Background technique

In recent years, the water-saving requirement for flushing water used for flushing in flush toilets has become higher and higher. In order to adapt to this water-saving requirement, it is enough to reduce the amount of flushing water. However, simply reducing the amount of flushing water flowing through the toilet bowl not only fails to clean the toilet bowl sufficiently, but also causes poor reliability when transferring and discharging dirt and flushing water out of the toilet. Therefore, the shape of the trap of the toilet body is widely devised to induce a siphon effect when flush water passes through, and to attract stagnant water by this siphon effect, thereby achieving water saving.

However, the trap of the toilet body is premised on the premise that it is curved at a predetermined height from the toilet installation floor to the inside of the toilet. Therefore, the arrangement of the mechanism for inducing the induction of the siphon action is also restricted by the formation of such a trap. Therefore, the current situation is that the siphon inducing mechanism can only be provided in the trap subject to the above-mentioned constraints.

Furthermore, a drain socket has been used to induce a siphon effect. For example, a drain socket shown in FIG. 80 is proposed in JP-A-8-326136. In this conventional flush toilet, the discharge port 102J of the toilet body 100J is connected to the drain pipe P arranged on the floor FL via the drain socket 110J. The drain socket 110J has a curved shape along the longitudinal direction of the toilet body 100J. The drain socket 110J forms a curved socket flow path portion 112J and has a concave trap accommodating portion 111J on its wall surface. Thereby, the drain socket 110J generates turbulent flow in the curved flow path portion and the concave trap accommodation portion, thereby facilitating the occurrence of siphon.

At the connection between the drain socket 110J and the drain pipe P, that is, between the outlet 114J of the socket flow path 112J and the upper end of the drain pipe, a throttle portion 116J is provided to temporarily stop the flow from the socket flow path 112J to the drain pipe P. The flushing water of the drain pipe P promotes the occurrence of siphon.

However, since the throttling portion 116J and the drain socket 110J of the prior art are formed separately and are only sandwiched between the upper end opening of the drain pipe P, there is a tendency for misalignment or displacement to the drain when subjected to the force of draining. There is such a problem that the pipe P falls off inside. This misalignment of the throttle reduces the effect of siphoning. In addition, the drain pipe P will be clogged if the throttle portion falls off into the drain pipe. Furthermore, the work of assembling such a throttle at a predetermined position is troublesome.

In view of this point, an object of the present invention is to improve the suction efficiency of the accumulated water in the bedpan portion by the siphon action regardless of the shape of the trap.

Another object of the present invention is to provide a drain socket that eliminates displacement of the throttle portion, enables early generation of siphon, and is excellent in workability.

In the above-mentioned drain socket 110J, since not only the piping is bent but also a concave trap receiving portion 111J is formed on the inner wall surface, the piping structure becomes complicated. Therefore, when the drain socket 110J is formed by injection molding or the like, the mold release becomes complicated. Such a complicated shape of the drain socket 110J requires a change in shape from the viewpoint of formability, that is, there is a problem that the optimal shape of the drain socket 110J for inducing siphon is restricted.

In view of this point, the object of the present invention is to provide a drain socket which has a simple structure and is easy to manufacture, and can obtain rapid occurrence of siphon and high siphon force.

However, the distance from the floor or wall surface (hereinafter referred to as installation surface) on which the toilet is installed to the terminal of the drainage channel differs depending on the type of toilet to be installed. Therefore, in order to produce such a toilet that can be installed with the drain socket interposed therebetween, it is necessary to prepare a plurality of drain sockets having different heights as a product. Therefore, the reduction of product types cannot be effectively realized.

In addition, since toilets are designed and manufactured independently by many companies in various countries around the world, it is actually difficult to prepare drain sockets suitable for all available toilets in advance. For example, when the distance from the installation surface of the toilet to the end of the drainage channel is longer than the length of the drain socket, it is necessary to place a board with a thickness insufficient in length under the drain socket, etc. One cause that hampers construction efficiency. On the other hand, when the distance from the installation surface of the toilet to the end of the drainage channel is shorter than the length of the drain socket, the connection method to the sewage pipe of the toilet has to be changed to the method of using a flange, which is inconvenient in construction. . In this way, the connection function of the above-mentioned drain socket is just brought into play due to the type of the connected toilet.

Furthermore, in the conventional drain socket, the cylindrical hollow formed in the socket is used as a water flow path, and the position of the throttle provided in the flow path cannot be changed for the construction site. For example, if the installed toilet is a toilet that uses siphon action for flushing, changing the position of the throttle part to below the ground can make the attraction to the stagnant water or flushing water generated after the siphon action occurs stronger. But prior art cannot carry out this change. In this way, in the drain socket of the prior art, even if the siphon effect is sustained for a long time by the siphon sustaining function, a considerable loss occurs in the suction force of accumulated water or flushing water generated by this continuation.

It is therefore another object of the present invention to provide a drain socket that is adaptable to various types of toilets to be installed and conditions at the installation site.

However, if the siphon tube cannot be filled with water (rinsing water) due to air ingress, flow reduction, etc., the siphon effect disappears. In the above-mentioned publication, if the amount of flushing water flowing to the drain socket decreases as the amount of flushing water in the toilet decreases, the amount of water flow that changes direction in the curved socket flow path decreases. As a result, the degree of change in the flow direction of the water becomes small, and the flush water flows directly into the discharge pipe outside the toilet. In this way, since the occupied area occupied by the flushing water in the cross-section of the pipeline is narrowed, it is easy for the air from the downstream to enter and the siphon cannot be maintained, so that the siphon effect disappears. In general, dirt (toilet paper, floating loose stools, etc.) floating in the accumulated water in the bedpan is sucked into the trap at the later stage of siphoning and discharged. Therefore, in the conventional technique in which the siphon tends to disappear as described above at the end of the siphon causing the decrease in the flow rate, it may not be possible to completely suck and discharge these floating pollutants.

In view of this point, the object of the present invention is to improve the suction efficiency of the accumulated water in the bedpan portion at the end of siphon.

In addition, in the flushing toilet using the siphon action, it is preferable to start the siphon at a high speed at the beginning of flushing to quickly flush away the dirt with a high head pressure and a low pressure loss, thereby discharging the waste in the toilet bowl with a small amount of flushing water. waste and seek water conservation. However, when flushing water is made to flow for a short time in order to save water, large dirt or toilet paper can be quickly discharged, but some of the dirt floating in the toilet bowl may remain and not be discharged.

In view of this point, the object of the present invention is also to rapidly discharge the waste floating in the bedpan.

disclosure of invention

In order to solve at least part of the above-mentioned problems, the first flush toilet of the present invention has a toilet bowl in which flush water remains as stagnant water when it is not flushed, and new flush water that passes through the toilet bowl is formed together with the stagnant water. A flush toilet with a water trap mechanism of a pipeline discharged to the outside is characterized in that,

The water trap mechanism is provided with: an ascending pipe portion which communicates with the bedpan portion and has an ascending pipe; The drain pipe part of the stagnation mechanism that induces the siphon effect when the flushing water passes through the aforementioned drain pipe temporarily stays,

The drainage conduit portion has a protruding conduit portion protruding from a part of the drainage conduit below the floor where the toilet is installed,

The above-mentioned stagnation mechanism is provided on the above-mentioned protruding pipeline part.

In the first flush toilet of the present invention having the above-mentioned configuration, the trap mechanism is constituted by the ascending pipe and the drain pipe connected thereto, and a part of the drain pipe protrudes below the floor where the toilet is installed as a protruding pipe. At this protruding pipeline part, the siphon effect is induced by the stagnation mechanism. As a result, since the difference between the surface of the flushing water temporarily stranded at the retention mechanism of the protruding pipeline portion and the water surface of the bedpan portion can be increased, the water head difference when the siphon action is induced can be increased, thereby enabling Improve the attraction or suction efficiency of accumulated water caused by siphon action.

The first flush toilet of the present invention having the above configuration may also take the following forms. That is to say, the above-mentioned drainage pipeline part can be formed with a plurality of the above-mentioned stagnation means, and at least one retention mechanism is provided on the above-mentioned protruding pipeline part and the aforementioned drainage pipeline other than the protruding pipeline part.

In this way, since the siphon action is respectively induced by the retention mechanisms at a plurality of locations, the suction force or suction efficiency of accumulated water caused by the siphon action can be further improved.

In this case, the stagnation mechanism may have the protruding conduit portion near or on the terminal end of the drain conduit.

In this way, since the water head difference at the time of inducing the siphon effect can be increased more reliably, it is beneficial to increase the suction force and suction efficiency of the accumulated water caused by the siphon effect.

In addition, the aforementioned retaining mechanism may be formed as a pipe expansion portion in which the diameter of the pipe to store passing flushing water is enlarged, or a pipe restricting portion in which the diameter of the pipe to store passing flushing water is reduced.

In this way, the flow-through flushing water can be reliably stored in the line expansion or in the line restriction, which can be beneficial for siphon induction.

If a plurality of such pipeline throttling parts are provided as the stagnation mechanism, that is, if there are pipeline throttling parts up and down along the pipeline, it is more beneficial to induce siphon effect, and can seek to improve the attraction of accumulated water and Increased attraction efficiency.

In this case, the narrowing range of the pipe diameter may be formed to extend in the direction of the pipe to form a narrowed portion of the pipe.

In this way, the passing flushing water is stored for a long time at the narrowed portion of the pipe, and then the flushing water is passed through this narrowed portion of the pipe. Thus, by prolonging the induction time of the siphon action, it is possible to improve the suction force of the accumulated water and the suction efficiency.

In addition, it is also possible to form the aforementioned water trap mechanism separately from the toilet body forming the aforementioned bedpan portion and install it on the aforementioned toilet body, and make the aforementioned drainage pipeline part into a drainage pipeline part equipped with and including the aforementioned protruding pipeline part. separate, and install the part of the drain pipeline on the other parts of the aforementioned drain pipeline to form the aforementioned drain pipeline.

In this way, since the main body of the toilet made of pottery can have a shape without a protruding portion protruding from the ground, it is beneficial in its manufacture, and its handling becomes easier in installation work, transport work, packing work, etc. Simple. Furthermore, if the above-mentioned mounting portion is sealed with a sealing portion to make the pipeline watertight, it is desirable to prevent flushing water or dirt from leaking out of the pipeline. In particular, if the end portion of the protruding pipe part separated from the other parts of the drain pipe is located in the existing external discharge pipe that has been installed on the floor of the toilet, the existing thing can be used as it is in the toilet main body. , which is beneficial in manufacturing.

In addition, the first drain socket of the present invention to solve at least part of the above-mentioned problems is a drain connected to the flush toilet to discharge the flush water of the flush toilet to an external discharge pipe already installed on the floor where the toilet is installed. The socket is characterized in that,

It has a connecting part connected to the end of the toilet trap pipe that is connected to the end of the toilet trap pipe that discharges the flush water remaining in the toilet bowl of the flush toilet as stagnant water when not flushing, and the new flush water passed to the toilet bowl. ,

connected to the connecting portion to form a pipe forming portion connected to the discharge pipe of the toilet trap pipe,

The channel forming part has a stagnation mechanism that forms the discharge channel to the inside of the external discharge pipe, and induces a siphon effect by temporarily stagnating passing flush water in a portion of the discharge channel located inside the external discharge pipe.

If it is made to connect the drain socket with this structure to the end of the water bend pipe in the toilet of the toilet, so that the flushing water of the toilet is discharged to the external discharge pipe, then the same as the toilet that has been described, the retention rate can be increased. The difference between the level of flushing water temporarily stagnant in the mechanism and the water level in the bedpan. Therefore, the water head difference when the siphon effect is induced can also be increased by relying on the drain socket, thereby improving the attraction or suction efficiency of the accumulated water caused by the siphon effect. Furthermore, since it is only necessary to connect this drain socket to an existing flush toilet, it can be placed in the toilet main body and the existing thing can be used as it is, which is beneficial in manufacture.

Furthermore, this drain socket may be formed so that the above-mentioned pipeline forming part has a plurality of the above-mentioned stagnation means, and the aforementioned stagnation means are provided at or near the end of the above-mentioned discharge pipeline.

In this way, the water head difference between the induction of the siphon action by the retention mechanism at multiple positions and the increase of the head difference during the induction of the siphon action is beneficial to the improvement of the attractive force and the suction efficiency of the accumulated water caused by the siphon action.

In addition, the connecting part may be provided with a mechanism for positioning and fixing to the water trap pipeline in the toilet, and the pipeline forming part may be provided with a mechanism for fixing to the ground where the toilet is installed in a state where the external discharge pipe is positioned. mechanism.

In this way, even if a force accompanying the flow of flush water is received during flushing of the toilet, the siphon action can be stably induced without misalignment with respect to the toilet or the external discharge pipe.

Furthermore, if the above-mentioned pipeline forming part is made such that the pipeline part of the above-mentioned discharge pipeline connected with the above-mentioned connection part and the pipeline part of the above-mentioned discharge pipeline in the aforementioned external discharge pipe are eccentrically formed, the above-mentioned discharge pipeline will be formed. Even if the internal water bend of the toilet is misplaced with the external discharge pipe, the discharge pipeline of the drain socket can be used to connect the internal water bend of the toilet and the external discharge pipe.

In addition, the toilet of the present invention for solving at least a part of the above-mentioned problems is a toilet equipped with a flush toilet connected to an external discharge pipe already installed on the floor where the toilet is installed, and is characterized in that

The external discharge pipe has a stagnation mechanism for temporarily stagnating the passing flush water to induce a siphon effect on the pipe portion where the flush water passes through the flush water discharge pipe in the flush toilet.

If a toilet having such a structure is used, the external discharge pipe itself induces a siphon action at the retention mechanism similarly to the above-mentioned flush toilet. Therefore, as long as the existing flushing toilet is connected to the external discharge pipe directly or via the drain socket, the flushing water during the flushing of the toilet can be induced to be effectively discharged through the siphon effect. Furthermore, by locating the stagnation mechanism below the floor where the toilet is installed, the siphon effect can be induced under a state where the water head difference is increased, and the toilet flushing can be performed efficiently with high water suction or suction efficiency. In addition, since the induction of the siphon effect does not matter in the flush toilet to be used, the versatility can be further improved.

In addition, in order to solve at least part of the above-mentioned problems, the first drainage device of the present invention has an inflow port connected to the discharge port of the toilet body, and an outflow port connected to the drain pipe connected to the sewer pipe. A drainage device for a flush toilet of a drainage socket in a socket flow path in which the inlet and the outlet are eccentrically connected, is characterized in that,

An orifice is provided integrally with the drain socket, and temporarily stagnates the flushing water flowing through the flow path of the socket to generate a siphon.

In the first drain device according to the present invention, the flush water discharged from the toilet body flows into the drain pipe through the socket flow path from the inlet of the drain socket. At this time, since the inlet and outlet of the drain socket are eccentric, the flow of flushing water is bent along the eccentric flow path, which is easy to stagnate, and the flushing water is further stagnated by the throttling part to induce siphon. The flushing water is retained only by the throttling part or the eccentric flow path, and the eccentric flow path and the throttling part are combined, so that it is not necessary to separately form an excessively curved flow path or an excessively narrow throttling flow The road is not blocked by dirt or the like.

In addition, since the throttling part is integrally formed with the drain socket, it will not be dislocated or fall off even if it is subjected to the force of flushing water during drainage. In addition, the desired siphon effect can be maintained, and maintenance is also easy. Furthermore, since the throttle portion is formed integrally with the drain socket, alignment is not required when the drain socket is mounted forward or backward, which is excellent in construction work.

Such a throttle portion can take various shapes as a position or a shape suitable for siphon generation. For example, the throttling portion is set as a throttling flow path that is eccentric to the socket flow path at the position where the throttle portion is provided, and a mutual promotion effect with the flow of the eccentric socket flow path can be achieved. In addition, the throttling portion is disposed near the outflow port, thereby increasing the amount of flushing water stagnant upstream of the throttling portion, increasing the siphon force, and improving the ability to discharge dirt.

In order to increase the amount of retained flushing water, the throttling portion may also be configured to extend the flow path of the socket to the bottom of the fixing portion of the drain socket facing the ground, and arrange the throttling portion at the lower end thereof.

The throttling portion manufactured in this way is integrally formed with the drain socket, so there is no need to consider the installation position etc. during the construction work of the flush toilet, and it is excellent in workability. Here, the so-called integral structure means that it is enough to form a whole without impairing its workability during the construction work of the flush toilet, and it is formed integrally with the drain socket, or even if it is formed separately from the drain socket and assembled into one body, as long as It is sufficient that the structure can be reliably fixed and positioned.

In order to improve the effect of siphon generation, the drain socket can also adopt various methods such as setting a toilet side throttle near the discharge outlet of the flush toilet, and disposing the toilet side throttle eccentrically with the above-mentioned inlet.

In order to solve at least a part of the above-mentioned problems, the second drainage device of the present invention is characterized in that:

The toilet connection part having the inlet connected to the discharge port of the toilet body, the drainpipe connection part having the outlet connected to the drainpipe connected to the sewer pipe, and the drain pipe having the socket flow path connecting the inlet and the outlet A socket, and a flushing water retaining mechanism that is separated from the drain socket and fixed on the drain socket, temporarily retains the flushing water flowing through the flow path of the socket to generate siphon.

In the second drainage device according to the present invention, waste, flush water, etc. discharged from the toilet body flow from the discharge port to the socket flow path of the drain socket, and are discharged from the discharge port to the drain pipe. A flushing water retention mechanism is fixed on the drain socket. The flushing water retention mechanism temporarily retains the flushing water flowing through the socket flow path to cause siphoning. Since this flushing water retaining mechanism is formed separately from the drain socket, the drain socket can be made into a simple structure, and only optimum design conditions for inducing siphon can be considered.

Therefore, the drain socket has a simple structure that is not restricted by manufacturing conditions such as mold release when molding by injection molding or the like, and manufacturing becomes easy. In addition, when the flushing water retaining mechanism is fixed to the drain socket, it is only necessary to consider the optimal conditions for inducing siphon, and it can have the effect of causing siphon with rapid and large force without being restricted by manufacturing conditions.

As a suitable form of the flush water retaining mechanism produced in this way, a configuration in which the flow path area is changed along the flow direction of flush water can be adopted. As an aspect of changing the flow path area, the flow path area may be continuously reduced from the upstream side to the downstream side of the socket flow path. In addition, it may be configured as a narrowed portion that narrows a part of the flow path area. As a preferable form of the throttle part, the flow path area may decrease from the upstream side to the downstream side.

In addition, the above-mentioned flush water retaining mechanism may be configured to provide a part of the upstream side of the throttle portion with an expanded flow path that increases the flow path area, or may be configured to provide a plurality of throttle portions. In this way, it is easy to obtain an optimum shape for rapidly generating siphon by the flushing water flowing through the socket flow path, and thus, an excellent water saving effect can be obtained.

Furthermore, when the throttle is provided on the flush water retention mechanism, by placing the throttle in the vicinity of the outlet, it can be expressed by the difference between the water level of the flush water stored in the bowl portion of the toilet body and the outlet. The siphon force is increased, and excellent drainage performance can be obtained.

In addition, the flush water retaining mechanism is equipped with a fixing mechanism positioned and fixed on the drain socket, so that the siphon can be stably generated without displacement to the drain socket even if a force accompanying the flow of flush water is received.

In order to solve at least a part of the above-mentioned problems, the second drain socket of the present invention has a toilet bowl where flush water remains as stagnant water when it is not flushed, and serves as the new flush water supplied to the toilet bowl and the toilet bowl. The water flushing toilet of the drainage channel of the pipeline for discharging the accumulated water to the outside is connected, the aforementioned drainage channel is connected with the sewage pipe provided outside, and the accumulated water or flushing water from the aforementioned drainage channel is circulated to the aforementioned sewage pipe The drain socket, characterized in that,

The drain socket is constituted by two or more members that can be separated along the flow direction of the aforementioned pooled water or flushing water.

In this way, the drain socket is composed of two or more members that can be separated along the flow direction of the accumulated water or flushing water, so that the flow paths of the accumulated water or flushing water can be varied through the combination of components. form.

It is also preferable to have a variable mechanism for changing the length of the drainage socket toward the flow direction of the aforementioned accumulated water or flushing water. In this way, it is possible to connect the toilet and the sewage pipe in most common forms. Therefore, common use of the drain socket can be achieved.

Preferably, at least the first member as a member disposed on the ground or the wall where the sewage pipe is installed, and the second member combined with the first member constitute two separate parts that can be separated along the flow direction of accumulated water or flushing water. More than one component, and equipped with a positional relationship changing mechanism for changing the positional relationship between the first component and the second component, the positional relationship is changed by the positional relationship changing mechanism, thereby changing the direction of the drainage socket towards the aforementioned accumulated water or flushing water The length of the flow direction. In this way, the length of the drain socket based on the ground or wall can be changed. Therefore, it is possible to connect toilets with different distances from the floor or the wall to the drainage channel to the sewage pipe by using the same drainage socket, and the workability is further improved.

If at least one of the first member and the second member is provided with a display unit that displays information about the variable length of the drain socket, the length of the drain socket can be adjusted while confirming the degree of change in the total length of the socket. This becomes possible, and the operability with adjustment is further improved. In addition, the distance value from the ground or wall on which the sewage pipe is installed to the position where the drain socket is connected to the drainage channel may be displayed on the display unit as information on the length of the variable drain socket. In this way, in order to properly connect the drain channel and the drain socket of the toilet, it is not necessary to adjust the size while aligning the drain channel and the drain socket of the toilet. As long as the distance from the ground or wall to the connection position of the drain socket and the drainage channel is measured in advance, the size of the drain socket can be adjusted according to this measured value. Thereby, adjustment work becomes smoother.

It is preferable to form a first flow path forming member at least as a member of the flow path communicating with the terminal end of the drainage path, and to be separately formed from the first flow path forming member, as the The second flow path forming member of the member extending the formed flow path to the downstream side constitutes two or more members that can be separated along the flow direction of the accumulated water or flushing water, and is equipped with a change that is extended by the second flow path forming member. The flow path changing mechanism of the length of the flow path, the length of the flow path extended by the second flow path forming member is changed by the flow path changing mechanism, thereby changing the flow direction of the drain socket toward the accumulated water or flushing water body of length. In this way, the flow path length of the drain socket can be changed to a desired length.

Preferably, the second flow path forming member is composed of a plurality of members, and the length of the flow path extended by the second flow path forming member can be changed by combining the plurality of members, and drainage can be performed with simple work. Changing the flow path length of the socket.

It is preferable to take such a structure that a mark indicating the cutting position of the member is provided in advance on the second flow path forming member, and the second flow path forming member is cut based on the mark, thereby changing the position of the second flow path. The length of the flow path extended by the path forming member. According to this configuration, it is possible to change the flow path of the drain socket to an appropriate length by cutting, and the cutting operation becomes smooth. In addition, it is also possible to take the second flow path forming member as a member capable of extending the flow path formed by the first flow path forming member to below the installation surface of the toilet, and the second flow path forming member extends toward the installation surface of the toilet. The distance value sticking out below is pre-displayed near the marker. In this way, the length of the second flow path forming member can be determined so as not to interfere with the sewage pipe below the installation surface of the toilet.

The second flow path forming member may be configured to be detachable from a predetermined portion of the drain socket, and the length of the flow path extended by the second flow path forming member may be changed by changing the mounting position of the second flow path forming member. In this way, the flow path length of the drain socket can be changed with a simple operation.

It is also quite appropriate to adopt such a configuration that, for two or more members that can be separated along the flow direction of accumulated water or flushing water, a first flow path forming member is included as a member that forms a flow path that communicates with the terminal end of the drainage path, Separately from the first flow path forming member, the second flow path forming member is a member that extends the flow path formed by the first flow path forming member to the downstream side, and is arranged on the sewage pipe as a second flow path forming member. The first member of the member on the floor or wall surface, and the second member combined with the first member to constitute the first flow path forming member,

A channel changing mechanism for changing the length of the channel extended by the second channel forming member and a positional relationship changing mechanism for changing the positional relationship between the first member and the second member are provided,

The length of the flow path extended by the second flow path forming member is changed by the flow path changing mechanism, thereby changing the length of the drainage socket toward the flow direction of the accumulated water or flushing water, and the positional relationship changing mechanism is used to change the length of the flow path extended by the second flow path forming member. By changing the positional relationship between the first member and the second member, the length of the drain socket in the flow direction of accumulated water or flushing water is changed. With this configuration, both the length of the drain socket and the flow path length of the drain socket can be freely changed based on the ground or the wall surface. Therefore, the adaptable range of the drain socket can be widened. For example, even when the type of toilet to be installed or the state of the sewage pipe to be installed differ depending on the installation site, it is possible to install the toilet well by adjusting the height of the drain socket from the ground or the length of the flow path of the drain socket. Upper drain socket.

Preferably, the second flow path forming member is provided with a constricted portion as a portion having a cross-sectional area smaller than that of an inlet portion of the member, so that the position of the constricted portion can be freely adjusted. By adjusting the position of the throttling portion, it is possible to determine the strength of the attraction force of the accumulated water or flushing water generated after the siphon action takes place to a desired degree in consideration of the type of the installed toilet or the state of the installed sewage pipe .

It is also possible to constitute an invention for a flush toilet equipped with the above-mentioned drain socket. In addition, an invention can also be constituted with respect to a flush toilet connected to the above-mentioned drain socket. For example, in the flush toilet connected to the drain socket equipped with the above-mentioned distance changing mechanism, the distance from the ground or wall to the end of the drain can be adjusted by changing the length of the drain socket based on the ground or wall. , so when designing or manufacturing the toilet, it becomes possible to freely design or manufacture the height of the terminal of the drainage channel. In addition, in the flush toilet connected to the drain socket equipped with the above-mentioned flow path changing mechanism, due to the change of the flow path length passing through the drain socket, the guide path of the accumulated water or flushing water to the sewage pipe can be changed, and the accumulation of water or There is no need to provide a complicated structure for ensuring the flushing performance of the toilet on the toilet main body.

The socket channel extension member of the present invention is a member connected to a drain socket connecting the end of the drain channel of the toilet with an external sewage pipe, and extends the flow channel formed inside the drain socket. The point of the socket flow path extension member to the further downstream member is,

Two or more numerical values indicating the length of the extension of the aforementioned flow path are displayed.

With the socket flow path extension part having such a configuration, when extending the flow path length of the drain socket, the length of the extended flow path can be easily determined. In this case, the flow path in the drain socket can be extended to an appropriate length by displaying two or more numerical values that differ depending on the type of toilet or installation conditions of the toilet.

In order to solve at least part of the above-mentioned problems, the third drain socket of the present invention is arranged between the siphon trap of a flush toilet having a siphon trap and the discharge pipe outside the toilet, and the water passing through the siphon trap The curved flushing water is guided to the drain socket of the socket pipeline of the aforementioned drain pipe, and it is characterized in that,

In the socket pipe, there is an adjustment mechanism for incrementally adjusting the amount of flushing water passing through the socket pipe during the end of siphon close to the end of siphon action when the siphon trap becomes full.

In the third drain socket of the present invention constituted as described above, since the amount of flushing water passing through the socket piping is incrementally adjusted during the final stage of siphoning, the occupied area of flushing water passing in the piping cross section is not narrowed. Thereby, entry of air from downstream can be suppressed, whereby siphoning can be maintained. Therefore, even in the final stage of siphoning, the suction efficiency of the siphon action for the accumulated water in the bowl can be improved, and the reliability of suction and discharge of floating waste can be improved.

In this case, in order to clean the toilet, it can be determined whether it is at the end of siphon by the amount of flushing water passing through it, the amount of water accumulated in the toilet bowl, the diameter of the trap pipe, etc. Judging by the elapsed time since the water started. Therefore, at the time of incremental adjustment, it is sufficient to define the execution time based on the elapsed time.

The third drain socket of the present invention having the above-mentioned configuration can also take the following forms. That is to say, the aforesaid adjusting mechanism can be taken as a replenishing mechanism that allows the remaining flushing water to pass through the flushing water in the replenishing socket pipeline during the final stage of the aforementioned siphon.

In this way, the siphon can be maintained by increasing the amount of flushing water in the socket pipeline by replenishing the flushing water, so that the suction efficiency of the water accumulated in the bedpan at the end of the siphon can be improved and extended, and the suction and discharge of floating dirt can be achieved. Increased reliability.

In this case, if a plurality of replenishing mechanisms are provided to replenish flush water at a plurality of locations, the above-mentioned siphon maintenance by replenishing flush water can be assured.

In addition, a siphon inducing mechanism for inducing siphon by temporary retention of flush water may be provided on the drain socket or the siphon trap of the toilet, and a replenishing mechanism for the drain socket may be provided near the siphon inducing mechanism. In this way, since flushing water is supplied near the site where the siphon action is induced, the siphon is maintained more reliably and reliability can be improved.

In addition, the replenishment means may have a retention means that retains a part of the flushing water passing through the socket pipe or the siphon trap until the end of the siphon.

In this way, the supplemental flush water can be raised from the passing flush water, that is, the flush water supplied to the toilet for flushing the toilet. Furthermore, no special water system for flush water replenishment is required. Accordingly, the configuration can be simplified without increasing the amount of flushing water used.

In addition, the adjusting mechanism may be configured to restrict passage of the flushing water of the socket pipe until the end of the siphon, and ease the restriction of the flushing water during the end of the siphon.

In this way, since the incremental adjustment is achieved by relieving the passage restriction during the final stage of siphon, it is possible to maintain the above-mentioned siphon in the final stage of siphon and improve the suction efficiency of the accumulated water in the bedpan. Furthermore, if the ease of passage restriction is performed by electrically driving the element, it is sufficient to perform the ease of passage restriction by driving the element based on the elapsed time from water passing.

In addition, the second flush toilet of the present invention is a flush toilet with a siphon trap, and is characterized in that,

The aforementioned siphon traps include:

The first downpipe section downstream from the bend,

This forms a downstream pipeline part, which is connected to the discharge pipe outside the toilet and is arranged to guide the flushing water to the second descending pipe part in the discharge pipe,

In the second descending pipe part, there is an incremental adjustment of the amount of flushing water passing through the second descending pipe part during the end of the siphon action near the end of the siphon action due to the full state of the siphon trap. adjustment mechanism.

Also in the second flush toilet according to the present invention, the amount of flushing water passing through the downcomer portion is incrementally adjusted during the siphon final period. Therefore, even by maintaining the siphon in this water flushing toilet, it is possible to improve the suction efficiency of the accumulated water in the bowl portion at the end of the siphon, and to improve the reliability of suction and discharge of floating waste.

In this case, it is also possible to form a second descending pipe part separately from the aforementioned siphon trap including the aforementioned first descending pipe part, and to connect and arrange between the aforementioned first descending pipe part and the aforementioned discharge pipe. between.

In this way, since the toilet main body made of earthenware can be taken as an existing toilet with a siphon trap, it is advantageous in its production.

And, also can take the 2nd descending pipe part of this split body as already described drain socket, or can be interchangeable with these drain sockets.

In order to solve at least part of the above-mentioned problems, the third flush toilet of the present invention is equipped with a toilet bowl that receives dirt and retains stagnant water, and forms a drainage flow that discharges flush water supplied to the toilet bowl to the outside together with the stagnant water. The siphon type water closet of the drainage pipeline of the road is characterized in that,

The above drainage pipeline is provided with:

A stagnation mechanism that temporarily stagnates the flushing water flowing in the drainage channel to induce a siphon effect is provided on the downstream side of the stagnation mechanism. Delay mechanism for delaying the flow rate of flushing water.

In the third flush toilet according to the present invention, dirt and flushing water discharged from the bowl part flow through the drain flow path of the drain pipe, and are discharged to the drain pipe connected to the sewer pipe. At this time, the flush water flowing through the drain channel passes through the stagnation mechanism and the delay mechanism. The stagnation mechanism temporarily stagnates the flush water flowing through the drain channel to induce siphon. Thereby, the flush water and dirt in the toilet bowl are quickly discharged to the outside through the drainage passage.

In this washing process, the flush water passing through the stagnation mechanism flows to the delay mechanism, but when the flow rate or velocity of the flush water exceeds a predetermined level, the delay mechanism allows the flush water to flow as it is and discharges it quickly. On the other hand, when the flow rate or flow velocity of the flush water is below a predetermined value, the flow resistance increases to slow down the flow velocity of the flush water. That is, in the early or middle stage of the siphon when the flow velocity of the flush water discharged from the toilet bowl is high, the flush water discharges the dirt quickly, and in the final stage of drainage when the flow velocity of the flush water is slow, the time until the flush water is discharged is delayed. lengthened. Thereby, the waste floating in the bedpan part can be reliably discharged from the bedpan part even if the discharge time is slow.

In addition, as a preferred embodiment of the third flush toilet according to the present invention, the stagnation means may be configured as a constriction protruding from the inner pipe wall of the drainage channel to reduce the flow area of the drainage channel. The flushing water is confined in the drain flow path by this throttling portion to induce a siphon. Furthermore, the retention mechanism may be configured as a stripping mechanism that guides the flush water flowing along the inner pipe wall of the drain flow path away from the inner pipe wall. As a preferable example of such a peeling mechanism, it may be constituted by a convex portion for peeling protruding from the inner pipe wall of the drain flow path. The detachment convex part changes the flow direction of the flush water flowing through the drain flow path to rapidly induce siphon.

Furthermore, the above-mentioned delay mechanism is provided with a delay convex portion protruding from the inner pipe wall of the drain flow path, and the above-mentioned delay convex portion may be configured to receive flushing water passing through the stripping convex portion in a flow rate state or a flow state below a predetermined value. , so that the flushing water can be delayed.

Furthermore, the delay mechanism may be configured to include a flow direction changing mechanism for changing the direction of the flush water flowing in the drain flow path. The direction converted by the above-mentioned flow direction changing mechanism can be taken as various directions such as a helical shape other than the vertical and circumferential directions to the inner pipe wall. Furthermore, as a preferred embodiment of the flow direction changing mechanism, it may be constituted by a guide portion for causing the flushing water flowing in the drainage channel to flow helically along the inner pipe wall. Such a guide can delay the time until the end of the flow by causing the flushing water to flow in a spiral.

The above-mentioned stagnation mechanism and/or delay mechanism may be formed separately instead of being provided in the drain line integrated with the above-mentioned bedpan. In the case of a separate structure, the drain pipe may be provided with a drain socket that is formed separately from the toilet bowl and is connected to the discharge port of the toilet bowl and the drainpipe connected to the sewer pipe. The drain socket is provided with The configuration of the above-mentioned retention mechanism and peeling mechanism. Furthermore, the structure is such that this drain socket is equipped with a socket main body forming a drainage flow path, and the above-mentioned retention mechanism and stripping mechanism are mounted on the above-mentioned socket main body separately, so that even if the retention mechanism and the stripping mechanism are complicated, Shapes can also be easily shaped.

Brief description of the drawings

FIG. 1 is an explanatory diagram showing a longitudinal section of a siphon type flush toilet 10 as an embodiment of the present invention.

FIG. 2 is an explanatory view showing the upper surface of the flush toilet 10 .

Fig. 3 is an explanatory diagram showing a modified example of applying the present invention to a flush toilet having a descending passage 33 as a simple pipeline.

FIG. 4 is an explanatory diagram showing a modified example in which the socket main body portion 71 and the drainpipe inner socket portion 72 are integrally provided.

FIG. 5 is a partial sectional view of a drain socket 70 according to another modified example.

FIG. 6 is a partial sectional view of a drain socket 70 according to still another modified example.

FIG. 7 is an explanatory diagram for explaining a modification example of a drain socket 70 suitable for a case where the position of the descending passage 33 and the drain pipe 90 of the trap line are shifted.

FIG. 8 is an exploded perspective view of a drain socket connection portion of a drain pipe 90 suitable for lead piping.

FIG. 9 is a cross-sectional view of the connection portion of the drain socket.

Fig. 10 is a plan view of a drain socket connection portion.

Fig. 11 is a cross-sectional view showing a peripheral portion of a flush toilet 110 using a drain socket 120 according to a second embodiment of the present invention.

FIG. 12 is an explanatory diagram showing four types of drain pipes P connected to the drain socket.

FIG. 13 is an explanatory diagram illustrating a state in which a drainage pipe P is constructed on the floor FL of the bathroom.

FIG. 14 is a cross-sectional view showing the drain receiver 120 of FIG. 11 .

FIG. 15 is a cross-sectional view of the drain socket 120 taken along a direction perpendicular to the longitudinal direction of the toilet body 111 .

FIG. 16 is an enlarged cross-sectional view showing the vicinity of the drain pipe connection portion 124 .

FIG. 17 is a diagram of the drain socket 120 viewed from the side.

FIG. 18 is a bottom view of the drain socket 120 .

FIG. 19 is an explanatory view explaining the work of installing the drain socket 120 .

FIG. 20 is an explanatory diagram for explaining the construction work of the flush toilet when the drain socket 120 is used.

Fig. 21 is an explanatory diagram for explaining the construction work of the flush toilet when the drain socket for the drainpipe is constructed at a position different from that of Fig. 20 .

FIG. 22 is an enlarged cross-sectional view showing the vicinity of the drain socket 120 .

Fig. 23 is a sectional view showing a drain socket 120B according to the third embodiment.

Fig. 24 is a sectional view showing a drain socket 120C according to the fourth embodiment.

Fig. 25 is a sectional view showing a drain socket 120D according to the fifth embodiment.

FIG. 26 is an enlarged cross-sectional view showing the vicinity of the throttle portion 124Db according to the fifth embodiment.

FIG. 27 is an explanatory diagram illustrating the vicinity of the throttle portion 124Ea.

FIG. 28 is a plan view showing the throttle portion 124Ea.

Fig. 29 is a sectional view showing the vicinity of the drain socket 120F according to the sixth embodiment.

Fig. 30 is an explanatory diagram illustrating the positional relationship between the trap drain pipe and the drain socket of the toilet body.

Fig. 31 is a cross-sectional view showing a peripheral portion of a flush toilet 210 using a seventh embodiment of a drain socket 220 according to an embodiment of the present invention.

FIG. 32 is an enlarged cross-sectional view showing the drain socket 220 in FIG. 31 .

FIG. 33 is a cross-sectional view of the drain socket 220 taken along a direction perpendicular to the longitudinal direction of the toilet body 211 .

FIG. 34 is an enlarged cross-sectional view showing the vicinity of the drain pipe connection portion 224 .

FIG. 35 is a view of the drain socket 220 viewed from the side.

FIG. 36 is a bottom view of the drain socket 220 .

FIG. 37 is an explanatory view explaining the work of installing the drain socket 220 .

FIG. 38 is an explanatory diagram for explaining the construction work of the flush toilet when the drain socket 220 is used.

Fig. 39 is an explanatory diagram of the construction work of the flush toilet when the drain socket for the drainpipe is constructed at a position different from that of Fig. 36 .

FIG. 40 is a cross-sectional view showing flush water retention unit 230 .

FIG. 41 is a plan view of flush water retention unit 230 .

Fig. 42 is a cross-sectional view showing a drain socket 220B and a flush water retaining portion 230B according to the eighth embodiment.

FIG. 43 is an explanatory diagram illustrating the flush water retention unit 230C.

FIG. 44 is an explanatory diagram illustrating the flush water retention unit 230D.

FIG. 45 is an explanatory diagram illustrating the flush water retention unit 230E.

FIG. 46 is an explanatory diagram illustrating the flush water retention unit 230F.

FIG. 47 is an explanatory diagram illustrating the flush water retention unit 230G.

FIG. 48 is an explanatory diagram illustrating the flush water retention unit 230H.

FIG. 49 is an explanatory diagram illustrating the flush water retention unit 230J.

FIG. 50 is an explanatory diagram illustrating the flush water retention unit 230K.

FIG. 51 is an explanatory diagram illustrating the flush water retention unit 230L.

FIG. 52 is an explanatory diagram illustrating the flush water retention unit 230M.

Fig. 53 is an explanatory view showing a longitudinal section of a siphon jet flush toilet 310 to which a drain socket 360 is connected as a ninth embodiment of the present invention.

FIG. 54 is an explanatory view showing the details of the cross section of the drain socket 360 .

FIG. 55 is an explanatory view showing the upper surface of the base member 380 .

FIG. 56 is an explanatory diagram showing a cross section of the fitting portion 382 in FIG. 54 taken along the center line C-C.

FIG. 57 is an explanatory diagram showing a perspective view of the base member 380 .

FIG. 58 is an explanatory view showing the front surface of the drain socket 360 when four fitting pieces 389a, 389p are fitted into the lowermost horizontal grooves 382c, 382r.

FIG. 59 is an explanatory view showing the state of the drain socket 360 when the height of the drain socket 360 from the floor FL is adjusted to 200 mm.

FIG. 60 is an explanatory view showing a longitudinal section when the drain socket 360 adjusted to a height of 200 mm from the floor FL is connected to another flush toilet 510 .

Fig. 61 is an explanatory diagram showing a longitudinal section when a flush toilet 810 and a drainpipe 8390 are connected by using a drain socket 8360 according to a tenth embodiment of the present invention.

FIG. 62 is an explanatory view showing a situation when the attachment position of the drainpipe inner socket member 372 to the main body member 8371 is changed.

Fig. 63 is an explanatory view showing a longitudinal section when a flush toilet 1310 and a drainpipe 1390 are connected by using a drain socket 1360 according to an eleventh embodiment of the present invention.

FIG. 64 is an explanatory diagram showing the appearance of the first cylindrical portion 1372 .

Fig. 65 is an explanatory diagram showing a state in which the drainpipe inner socket member 1372 is attached to the flange portion 1379a in section.

FIG. 66 is an explanatory diagram showing a first cylindrical portion 2372b as a modified example.

Fig. 67 is an explanatory view showing a longitudinal section of a siphon jet flush toilet 410 as a twelfth embodiment of the present invention.

FIG. 68 is an explanatory view explaining the passage behavior of the flushing water in the siphon trap and the socket pipe 472 .

FIG. 69 is an explanatory diagram for explaining a drain socket 470 of a modified example.

Fig. 70 is an explanatory diagram for explaining a drain socket 1470 of the thirteenth embodiment.

FIG. 71 is an explanatory view for explaining a drain socket 1470A of a modified example.

Fig. 72 is an explanatory diagram for explaining a drain socket 2470 of the fourteenth embodiment.

Fig. 73 is an explanatory view showing a longitudinal section of a siphon jet flush toilet 610 as an example of the present invention.

FIG. 74 is an explanatory diagram showing the upper surface of the flush toilet 610 .

FIG. 75 is an enlarged cross-sectional view showing the vicinity of the drain socket 670 in FIG. 73 .

FIG. 76 is an enlarged perspective view showing the vicinity of the flush water retaining mechanism 680 by cutting the drain socket 670 .

Fig. 77 is an explanatory diagram illustrating temporal changes in the amount of flush water flowing out of the drain port in the water washing process.

Fig. 78 is an explanatory diagram for explaining an initial or middle stage of a water washing process.

Fig. 79 is an explanatory diagram illustrating the final stage of the water washing process.

Fig. 80 is a cross-sectional view showing the periphery of a drain device of a conventional flush toilet.

The best form for carrying out the invention

In order to further clarify the structure and operation of the present invention described above, an embodiment of the flush toilet according to the present invention will be described below. FIG. 1 is an explanatory diagram showing a longitudinal section of a siphon jet flush toilet 10 as an embodiment (first embodiment) of the present invention, and FIG. 2 is an explanatory diagram showing the top surface of the flush toilet 10. As shown in FIG. This siphon jet flush toilet 10 causes water to jet out from the jet ejection hole 22 described later to cause a siphon action as the water is flushed. Next, each part of the flush toilet 10 will be described with reference to FIGS. 1 and 2 .

As shown in FIG. 1, the flush toilet 10 is provided with a toilet bowl 20 which receives dirt. The surrounding wall of the toilet bowl 20 is composed of a water-covered surface 23 that contacts the reservoir water RW even when the flush toilet 10 is not flushing, and an exposed surface 24 that does not contact the reservoir water RW when the flush toilet 10 is not flushing.

As shown in FIG. 2 , the jet spray hole 22 is connected to a jet water supply hole 45 serving as an inlet of water sprayed from this hole 22 via a jet water supply channel 46 curvedly formed inside the toilet. As shown in FIG. 1, the jet ejection hole 22 is located at a position almost facing the discharge port 25 through the recess 26, and the energy of the flushing water is transmitted to the discharge mechanism after the discharge port 25 without waste. Thus, it is possible to induce the siphon effect at an early stage.

Inside the flush toilet 10, a mechanism for supplying water to the toilet bowl 20 (hereinafter referred to as a supply mechanism) and a mechanism for discharging the waste in the toilet bowl 20 to the drain pipe 90 (hereinafter referred to as a discharge mechanism) are provided. mechanism).

First, the supply mechanism will be described. At the rear of the flush toilet 10, a flush water supply hole 40 is provided as a hole for connecting the water supply pipe SL of the flush water tank WT. Flush water is supplied to the water path 41 from the flush water flow path of the flush water tank WT. This flush water supply channel 41 forms a stagnation portion 41a as a space partition between the jet flow channel 46 for spraying flush water to the toilet bowl and the lower end of the drain pipe of the flush tank WT. And when washing, the discharge flushing water from the drainpipe flows into this stagnation portion 41a, and this inflowing flushing water flows out to the edge water supply passage 43 through the jet flow water supply passage 46 and the branch hole 42 described later. The air gap of the rinse water functions.

That is, the water stored in the tank (flush water) energized by the free fall is supplied to the flush water supply channel 41 at one go. Therefore, the stagnation portion 41a formed in the flush water supply channel 41 is divided into sections obliquely downward and becomes full after the water washing starts, and a part of the flush water is supplied to the edge water supply channel 43 from the branch hole 42 . The flush water supplied to the edge water supply channel 43 is discharged from a water outlet hole 44 (see FIG. 2 ) provided on the back side of the edge portion 21 .

As shown in Fig. 2, on the inner side of the edge portion 21, there are five types of large holes 44a with a diameter of 7mm, middle holes 44b with a diameter of 4mm, small holes 44c with a diameter of 3mm, and substantially rectangular long holes 44d and e. The outlet hole 44 of shape. Although this water outlet hole 44 is formed when the edge portion 21 is formed, it is also possible to install the distributor with the water outlet hole on the inner side of the edge portion 21 of course.

In this case, the total opening area SA of the water outlet holes 44 of the above-mentioned large holes 44a, middle holes 44b, small holes 44c, elongated holes 44d, and e is obtained according to the product of the respective areas and numbers of each hole, and the flushing The ratio SH (SH/SA) of the effective passage area (opening area of flushing water outlet portion) SH of the branch hole 42 through which water is guided to each of these holes is set to be about 1.23. Thus, although the amount of flushing water supplied to the edge water supply channel 43 is adjusted by the degree of opening of the branch hole 42, at this time, the flow rate can be controlled almost linearly according to the above-mentioned area ratio. In addition, since the flow rate ratio that varies depending on the area ratio is also large, the flow rate can be controlled very effectively by the branch hole 42 . In addition, there is no need for trial and error at the time of design or inspection, and it is possible to easily set the flow rate.

Among the above water outlet holes, the elongated holes 44d and e are provided for imparting a rotational component to the flush water discharged from the water outlet hole 44 . That is, the flush water supplied to the left and right edge water channels 43 is energized in the front direction of the flush toilet 10 according to the opening diameter of the outlet hole 44 or the energizing force of the flush water, and is discharged from the holes 44a-e. . At this time, water with a large force is spouted from the long hole 44d formed on the back side of the right rear edge portion 21 at a position close to the branch hole 42 to the exposed surface 24 on the left side of the front of the toilet. In addition, a large amount of flush water flowing through the edge water supply channel 43 around the right side is spouted from the elongated hole 44e formed in the front right position of the flush toilet 10 to the left rear exposed surface 24 of the flush toilet 10 . The flush water discharged from these elongated holes 44 d and e becomes the mainstream, and a clockwise rotational force is applied to the flush water discharged from the discharge hole 44 . This rotational force is transmitted to the accumulated water RW in the toilet bowl portion 20 . As a result, the water in the bedpan part 20 becomes a right-handed swirling flow.

Note that the above is an example of a method of imparting a swirling component to the flush water discharged from the water outlet hole 44, and other methods may of course be used. For example, the outlet hole 44 may be formed with an angle in the rotation direction, or the flow channel of the edge water supply channel 43 may be rotated on one side. In addition, in the first embodiment to which the present invention is applied, edge spouting is performed as described above, but edge spouting may be performed by merely dropping flush water from the edge, or edge spouting may not be performed.

Further, the flush water reaching the stagnation portion 41a enters the jet water supply hole 45 which is a hole provided on the side wall of the stagnation portion 41a. The flushing water is supplied to the jet water supply channel 46 following this entry. The flush water supplied to the jet water supply channel 46 is jetted from the jet jet hole 22 . Then, when the stagnation portion 41a is replaced by flush water, the flush water is guided from the branch hole 42 to the edge water supply channel 43, and the flush water is discharged from the outlet hole 44 of the edge.

The distribution of the flow rate from the outlet hole 44 and the flow rate from the jet outlet hole 22 can be arbitrarily set by adjusting the effective passage area (opening area of the rinse water outlet portion) SH of the branch hole 42 .

Next, the discharge mechanism will be described. As shown in FIG. 1, in front of the discharge port 25 formed in the depth of the recess 26 as a dirt accumulation place, flow paths (trap) as water and dirt are respectively formed to point obliquely upward from the discharge port 25. The curved connecting path 31 , the ascending path 32 extending in the bending direction of the connecting path 31 and then curving in the lateral direction, and the descending path 33 curving downward in the lateral direction. In this case, the connection path 31 and the ascending path 32 become the ascending pipes referred to in the present invention.

The descending passage 33 has, at its terminal portion, an expanded portion 33a in which the pipe diameter expands, and a terminal throttle portion 33b in which the opening area is narrower than this expanded portion. Accordingly, since the flush water passing through the descending passage 33 temporarily stagnates at the expansion portion 33a and the narrow end portion 33b, the descending passage 33 itself also induces a siphon effect. This descending path 33 is connected at its end to a drainpipe 90 erected from the toilet floor FL at the toilet installation site via a resin drain socket 70 .

Furthermore, the distance from the rear end of the toilet 10 shown in FIG. 1 to the center of the drain pipe 90 is 180 mm, and the distance from the rear end of the flush tank WT assembled in the flush toilet 10 to the center of the drain pipe is 190 mm. . That is to say, if the drainpipe 90 is erected at a position 200 mm away from the wall of the toilet, then the gap between the back of the flush tank WT and the wall of the toilet can be set at 10 mm. position. In this way, if the flush toilet 10 and the flush tank WT are positioned, it becomes possible to arrange the drain pipe 90 close to the wall on the building side. As a result, the distance from the drain pipe 90 to the pipe space is shortened, and smooth transfer of waste can be ensured. Of course, when the distance from the wall of the bathroom is not considered, the above-mentioned distance may be set to a value of 200 mm or less.

Although these flow paths are formed integrally with the flush toilet 10 which is earthenware by molding the flow path shape into a plaster mold or a resin mold, the flow paths may also be formed by members separate from the flush toilet 10 . For example, it is also possible to adopt a configuration in which all or part of these flow paths are formed by other members such as resin and connected to the discharge port 25 .

The drain socket 70 includes a socket main body 71 located on the floor FL of the toilet and fixed to the floor of the toilet by bolts or the like, and a drain pipe inner socket portion 72 located in the drain pipe 90 . The socket body portion 71 has a descending passage fitting portion 71a at its upper end into which the end of the descending passage 33 is inserted, and a first water passage 73 is provided below this fitting portion. The diameter of this first water passage 73 is almost the same as that of the above-mentioned descending passage 33 . Moreover, the socket body part 71 is equipped with the drainpipe fitting part 74 into which the upper end of the drainpipe 90 is inserted from below. The fitting portion 74 of the drain pipe 74 positions the drain socket 70 to the drain pipe 90 through the fitting of the drain pipe 90 . Moreover, since the end of the first water passage 73 is located below the upper end of the drain pipe 90 , the flushing water passing through the first water passage 73 is difficult to leak from the upper end of the drain pipe 90 .

The drainpipe inner socket portion 72 includes a tapered first cylindrical portion 72b having a flange portion 72a at its upper end, and a straight pipe-shaped second cylindrical portion 72c at the front end of the cylindrical portion. In this way, since the first cylindrical portion 72b is tapered, even if the pipe diameter of the drain pipe 90 goes in and out somewhat, the flange portion 72a is in contact with the upper end of the drain pipe 90 or is slightly separated from the upper end. The drain pipe inner socket 72 can also be fitted into the drain pipe 90 . In this case, if the inner socket portion 72 of the drain pipe is made to have seat-shaped seals such as rubber seats on the outer peripheral portion near the upper end of the first cylindrical portion 72b and the back surface of the flange portion 72a, then the upper end of the drain pipe 90 The opening can seek the watertightness of the pipeline, so it is desirable.

In this way, the inner socket portion 72 of the drain pipe 90 is installed below the first water passage 73 to form a socket expansion portion 75 whose diameter is larger than the pipeline. The water pipe 73 has almost the same diameter as the throttling pipe portion 76, so that the socket expansion portion 75 and the throttling pipe portion 76 are located at a position lower than the bathroom floor FL to serve as a discharge pipe for flushing water. Furthermore, also in the expanded socket portion 75 and the throttle line portion 76 located at a position lower than the bathroom floor FL, the flushing water passing through these portions temporarily stagnates to induce a siphon effect.

Although the socket body part 71 and the drainpipe inner socket part 72 of the above-mentioned drain socket 70 are all resin molded products, they are separated from the flush toilet 10, specifically, the descending path 33, but they may be separated from the descending path 33. become one. When it is integrated with the descending passage 33 like this, a pipeline such as the first water passage 73 is connected and set on the expansion part 33a with the end throttle part 33b interposed therebetween, and a bearing is connected and set below it with the forming material of the descending passage 33. A pipeline expansion part such as the port expansion part 75 and a pipeline such as the throttling pipeline part 76 are sufficient. When making the socket body part 71 of the drain socket 70 and the drain pipe inner socket part 72 into a resin molded product, in addition to using polyvinyl chloride in the same way as the drain pipe 90, ABS resin, PP (polypropylene), or ABS resin can be used. PE (polyethylene), PPS (polyphenylene sulfide), MA (acrylic acid), POM (polyacetal) and other resins.

In this case, since the drain pipe inner socket portion 72 can be separated from the socket main body portion 71, the drain pipe 90 can be incorporated separately. In this way, the drain pipe 90 itself becomes capable of inducing the above-mentioned siphon effect.

In the state where the above-mentioned drain socket 70 is installed, the end of the flush toilet 10 protrudes downward from the toilet floor FL to form a descending pipe for flushing water discharge, and a siphon is induced on this protruding part from the toilet floor FL. Expansion and restriction for action.

As shown in FIG. 1 , in the flush toilet 10 before the flushing operation, the water RW accumulates in the connection path 31 , the ascending path 32 , and the toilet bowl 20 up to the height of the normal water level line WL. Reverse flow of bad smell from the discharge mechanism to the toilet bowl 20 and entry of harmful insects are prevented by this accumulated water RW. In addition, in this first embodiment, while seeking to reduce the amount of stagnant water RW, on the other hand, ensure a wide stagnant water surface with a value of 185 mm in width x 225 mm in length, and prevent dirt from adhering to the bedpan part 20 or from the exposed surface 24. Emanation of bad smell.

The accumulated water RW includes the water accumulated inside the bedpan 20 up to the discharge port 25 (hereinafter, this part of water will be referred to as the toilet portion accumulated water or sealing water), and the water accumulated in the connection path 31 and the ascending path 32 after the discharge port 25 (hereinafter this part of water is referred to as water accumulation in the flow path), and the water accumulated in the lower part of the retention portion 41a of the flush toilet 10 and the jet flow water supply channel 46 (hereinafter this part of water is referred to as jet accumulation water). As shown in FIG. 1 , in the sewage flow path constituted by the connecting path 31 , the ascending path 32 and the descending path 33 , accumulated water in the flow path is accumulated only at one point from the connecting path 31 to the ascending path 32 . In addition, "sewage" refers to water polluted by dirt such as excrement or urine, paper, or the like.

The height of the normal water level line WL depends on the height of the weir 34 which is the highest position on the lower side of the inner wall of the ascending path 32 . Therefore, as shown in Fig. 1, because the bottom of the stagnation portion 41a of the flush closet 10, the jet flow water supply hole 45 and the jet flow water supply channel 46 are below the weir 34, so in the resting state of the flush closet 10, in the stagnation portion 41a In the lower part and the jet flow water supply channel 46, the accumulated water in the jet flow is accumulated to the above-mentioned water level. Furthermore, when the height of the weir 34 is lowered, the water level of the accumulated water RW is also lowered, and the amount of the water accumulated in the bedpan portion, the accumulated water in the flow path, and the accumulated water in the jet flow is also reduced.

With the drainage mechanism constituted like this, the mechanism by which sewage or dirt is discharged will be described. When the flush water is released from the flush water tank WT, the released flush water first flows into the stagnation portion 41a, and its potential energy is used as kinetic energy to make the jet stagnant water of the jet flow water supply channel 46 flow into the toilet portion stagnant water (sealing water) of the toilet portion 20. Thereby, the flushing water spraying from the jet ejection hole 22 to the above-mentioned trap starts, and then, while flush water continues to be discharged, flush water itself is continuously ejected from the jet ejection hole 22 by the energy described above. In the early stage of this spraying operation, since the stagnant portion 41a is replaced by the discharged flushing water, the discharged flushing water is sprayed out from the water outlet hole 44 through the branch hole 42 after the replacement.

When the flush water is sprayed toward the toilet bowl 20 in this way, the water level of the ascending passage 32 rises, and the curved portion from the ascending passage 32 to the descending passage 33 (hereinafter referred to as a curved portion) becomes full of water. Then, the flushing water passes through the descending passage 33, and when it passes, the flushing water at the expansion part 33a at the end of the descending passage, the socket expansion part 75 and the throttle pipe part 76 below the bathroom floor FL temporarily stagnates, A pressure difference is generated between this flush water and the accumulated water in the toilet bowl 20 to generate a downward suction force. The flushing water (sewage) filling the ascending passage 32 and the connecting passage 31 and the flushing water (sewage) in the bedpan are guided to the drain pipe 90 together with the dirt by this suction force. This induces a siphon effect.

In the siphon jet flush toilet 10 of the first embodiment constituted as above, not only the expanding portion 33a and the narrowing end portion 33b at the end of the descending path 33, but also the drain socket 70 located at a position lower than the toilet floor. The socket flare 74 and the throttle line 76 also induce a siphon effect. Thus, there are the following advantages.

First, since the siphon action is induced at both the end of the descending path 33 and the drain socket 70, the water attraction or suction efficiency of the bedpan portion 20 generated by the siphon action can be further improved.

In addition, in the drain socket 70, the expansion part 75 of the socket and the throttling pipeline part 76 formed for inducing siphon action are placed under the bathroom floor FL, so as to increase the water head difference when siphon action is induced. Thereby, the suction force or suction efficiency of accumulated water by the siphon action can be further improved. Moreover, since the throttling line portion 76 is taken as the end of the line for flushing water discharge, and the socket expansion portion 75 is provided near the end of the line, the water head difference when the siphon effect is induced can be increased more reliably. , can effectively improve the attractiveness of accumulated water and improve the suction efficiency.

In addition, the part that induces the siphon effect by throttling the pipeline is taken as the terminal throttle portion 33b at the end of the descending path 33 and the throttle pipeline portion 76 of the drain socket 70, and these throttled parts are arranged up and down along the descending pipeline. . Thereby, the temporary stagnation of passing flush water can be realized, the siphon effect can be induced more effectively, and the attraction of accumulated water can be improved and the suction efficiency can be improved. Furthermore, since the throttling line portion 76 of the drain socket 70 is extended along the line direction with a certain length (about 40 mm), passage of flushing water is hindered and the residence time is prolonged. Therefore, the time for inducing siphon action can be lengthened, and the attraction of accumulated water can be effectively improved and the suction efficiency can be improved.

In addition, when installing the siphon effect inducing part under the bathroom floor FL, the drain socket 70 is used to make it separate from the flush toilet 10 . Therefore, since the flush toilet 10 can be made of pottery as before and has no protrusion from the bottom surface, it is not necessary to remake a manufacturing mold and the like, which is advantageous in its manufacture. In addition, handling of the flush toilet becomes easier in installation work, transport work, packing work, and the like. In addition, since the siphon effect inducing part can be provided under the toilet floor FL by the drain socket 70, the existing toilet can be used as it is for the flush toilet 10, which is advantageous in terms of manufacture.

Furthermore, when the siphon effect inducing part is provided under the bathroom floor FL by the drain socket 70, it is sufficient to install the drain pipe inner socket part 72 which is separated from the socket main body part 71 of the drain socket 70 into the existing drain pipe 90. up. Thereby, since there is no need to install the drain pipe itself, etc., it can be easily installed when the toilet is remodeled with the flush toilet 10 of the first embodiment.

Next, modified examples will be described. Although in the above-mentioned first embodiment, the description has been made on the water flushing toilet in which the descending passage 33 itself carries out the induction of the siphon effect by the expansion part 33a at its end, it can also be applied to the descending passage 33 being made into a simple pipeline. There is no water flushing toilet of the siphon induction part on the descending way. FIG. 3 is an explanatory diagram showing a modification applied to a flush toilet having a descending passage 33 formed as a simple pipeline. Also in this modified example, since the expansion part 75 of the socket and the throttle pipe part 76 at a position lower than the floor FL of the bathroom by the drain socket 70 can induce a siphon effect with a large water head difference, it is possible to effectively Improves water attraction and increases suction efficiency. In this modified example, if the first water passage 73 formed by the socket body part 71 is made to have a smaller diameter than the pipe diameter of the descending passage 33 above it, then this first water passage 73 can be Take the throttling part for inducing the siphon effect. Accordingly, in this way, the siphon action can be induced at multiple locations.

FIG. 4 is a cross-sectional view of a drain socket 70 of a modified example in which a socket main body portion 71 and a drain pipe inner socket portion 72 are integrally provided. Also in the drain socket 70 of this modified example, the socket body part 71 forms a first water passage 73 below the descending passage 33, and the inner socket part 72 of the drain pipe is connected to this first water passage 73 to form an expanded The expansion part 75 of the pipe diameter and the throttle pipe part 76 of almost the same diameter as the first water passage 73 . Moreover, also in the drain socket 70 of this modified example, the socket expansion part 75 and the throttle line part 76 are arranged below the toilet floor FL to form a siphon effect inducing part. In this modified example, the inner socket part 72 of the drain pipe is a blow-molded product that is bulged in the middle of the pipeline, and is screwed and fixed to the first channel of the socket main body part 71 by means of the threaded part provided on the inner periphery of the upper end opening. Water pipeline 73 lower ends. Since the drain socket 70 of this modified example can also induce the siphon effect with a large water head difference as described above, it is possible to effectively increase the suction force of the accumulated water and improve the suction efficiency. Furthermore, in this modified example, since the drain socket 70 is handled as an integral product, installation work for the drain pipe 90 and the like can be simplified.

FIG. 5 is a partial sectional view of a drain socket 70 according to another modified example. As shown in the figure, in this modified example, a sealing member 77 is provided on the descending passage fitting portion 71a into which the end of the descending passage 33 is inserted. The sealing member 77 is made of elastic material such as rubber. When the descending passage 33 is inserted, the tapered portion on the inner peripheral side is expanded so that the tapered portion closely contacts the outer periphery of the descending passage 33 and seals it. Therefore, according to this modified example, since water impermeability can be achieved at the lower end of the descending path, flushing water or dirt can not leak to the outside of the piping. In addition, the drain socket 70 can be fixedly positioned with respect to the descending path 33 through the sealing member 77 .

FIG. 6 is a partial sectional view of a drain socket 70 according to still another modified example. In this modified example, it is a case where the drain pipe 90 is installed without standing up from the bathroom floor FL. In this modified example, as shown in the figure, a seal 78 made of rubber or the like in the form of an original disk air seal is arranged on the front and back of the flange portion 72a of the inner socket portion 72 of the drain pipe, and the inside of the drain pipe is sealed. The socket portion 72 is fitted into a drain pipe 90 . And, the socket main body part 71 is fixed on the bathroom floor FL, so that the downwardly extending sealing wall 73a of the first water passage 73 surrounding the socket main body part 71 on its outer layer contacts the seal on the above-mentioned flange part 72a. 78 to seal the portion. According to this modification, even when the drainpipe 90 is installed on the bathroom floor FL without standing upright, the siphon effect inducing portion can be formed under the bathroom floor FL to achieve the above effect. Moreover, since the pipeline of this drain pipe 90 is made watertight by the sealing member 78, it is possible to prevent flushing water or dirt from leaking out of the pipeline.

The first embodiment described above can be modified as follows.

For example, although in the above-mentioned first embodiment, the low box type water tank connected to the toilet is used as the flushing water tank, it is also possible to use a water tank other than the low box type water tank, for example, to be installed on the wall of the toilet via the toilet and the flushing pipe. Corner-mounted or flush-mounted water tanks in other places. In this case, it is also possible to arrange the flushing water tank at a high position to make a high tank.

In addition, although the case where the present invention is applied to the siphon jet flush toilet 10 or the siphon type toilet has been described as an example, it can also be understood as an invention in which the above toilet is combined with other devices or components. For example, it can also be applied to a flush type flush toilet in which waste discharged into the bowl portion of the toilet or sewage contaminated with waste is pushed to flow by utilizing the force of flush water supplied to the toilet. In addition, it is conceivable to consider the sanitary washing device combined with the functional toilet seat that realizes various functions such as partial washing or heating, the toilet suite device combined with the storage box or sanitary ware, and the wall parts, floor parts and ceiling parts as the structure of the toilet. Combined complete toilet installations, etc.

In addition, the drain socket 70 has been described for the case where the descending passage 33 and the drain pipe 90 are aligned, but it is also applicable to a case where the descending passage 33 and the drain pipe 90 are misaligned. FIG. 7 is an explanatory view for explaining a modified example of a drain socket 70 applied to such a case. The drain socket 70 of this modified example is eccentrically equipped with a descending passage fitting portion 71a into which the end of the descending passage 33 is inserted, and a first water passage 73 , a socket expansion portion 75 and a throttle passage portion 76 located in the drain pipe 90 . According to the position staggered above, the main body part 71 of the socket is made to bend or bend. In this way, even if the positions of the descending passage 33 and the drain pipe 90 are staggered, the descending passage 33 can be connected to the drain pipe 90 through the drain socket 70, and the first water passage 73 and the expansion pipe of the drain socket can be expanded. A siphon effect is induced at the part 75 and the throttling line part 76.

In addition, it is applicable even if the drain pipe 90 is a lead pipe. FIG. 8 is an exploded perspective view of a drain socket connection portion of a drain pipe 90 suitable for such a lead pipe, FIG. 9 is a sectional view of the drain socket connection portion, and FIG. 10 is a top view thereof.

As shown in these figures, in the case of the drain pipe 90 made of lead pipe, the metal flange 171 is fixed to the bathroom floor FL by the fixing screw 172 in the state where the drain pipe 90 protrudes upward. In this case, it is sufficient that the drain pipe 90 protrudes about 15 mm from the bathroom floor FL. Next, the opening of the drain pipe 90 is expanded into a conical shape following the conical slope 179 of the metal flange 171 . Then, configure the conical P-seal air seal portion 173 that overlaps the conical expansion opening of the drain pipe 90, and fix it to the metal flange with the fixing screw 175 in the state where the air seal portion is clamped by the transition joint 174. 171 on. The above-mentioned drain socket 70 is fixed to the upper end cylindrical portion of the transition joint 174 fixed in this way. If this modified example is used, even in the case of a lead-controlled drain pipe 90, the descending path 33 can be connected to the drain pipe 90 via the drain socket 70, and the first water passage 73 of the drain socket 70, A siphon effect is induced at the socket expansion part 75 and the throttling line part 76 .

Next, other embodiments will be described in sequence.

Fig. 11 is a cross-sectional view showing a peripheral portion of a flush toilet 110 using a second embodiment of a drain socket 120 according to an embodiment of the present invention. The flush toilet 110 includes a toilet body 111 made of earthenware integrally formed with a toilet bowl 11a and a trap drain 111b, a resin drain socket 120, a flush tank, and the like. The drain socket 120 connects the discharge port 116 of the toilet body 111 to the drain pipe P protruding from the floor FL.

As shown in Fig. 12, the drainage pipe P is made on the floor FL of the toilet according to four specifications with two different outer diameters D1, D2 and two different wall thicknesses t1, t2 respectively. That is to say, the outer diameter of the drainage pipe PA is D1 and the wall thickness is t1, the outer diameter of the drainage pipe PB is D1 and the wall thickness is t2, the outer diameter of the drainage pipe PC is D2 and the wall thickness is t1, and the outer diameter of the drainage pipe PD is D2 , the wall thickness is t2. Here, the outer diameter and wall thickness are D1<D2, t1<t2. In Fig. 13, the drainpipe P(PA) is not at the same distance from the front wall WF of the bathroom, but is arranged at different positions at distances L1 (120mm) and L2 (200mm) according to conditions such as the building. The drain socket 120 accommodates all four different drain pipes P and two lay sizes. The drain socket 120 will be described in detail below.

14 is an enlarged cross-sectional view of the drain socket 120 of FIG. 11 , and FIG. 15 is a cross-sectional view of the drain socket 120 cut along a direction perpendicular to the longitudinal direction of the toilet body 111 . In Fig. 14 and Fig. 15, the drain holder 120 is integrally formed with a toilet connecting part 121, a connecting pipe part 123, a drainpipe connecting part 124, a socket fixing part 128 (refer to Fig. 17), and a toilet fixing part 129 (Fig. 15) by resin. ).

The said toilet connection part 121 is equipped with the sealing member 122 which seals between the outlet side of the trap drain pipe 111b. The outlet side of the trap drain pipe 111b is inserted into the opening portion 122a of the sealing member 122, thereby sealing therebetween, and the discharge port 116 of the trap drain pipe 111b is connected to the inflow port 121a.

Moreover, the toilet connection part 121 and the connection pipe part 123 have the socket flow path 123a which eccentrically connects the said inlet port 121a and the outlet port 124a. The eccentricity La of the connecting pipe portion 123 is formed to be La=(L2-L1)/2. Moreover, between the connection pipe part 123 and the toilet connection part 121, the step part 123b is formed in the upper part of the connection pipe part 123. As shown in FIG. The socket flow path 123a has a shape in which turbulent flow occurs when the flush water hits the stepped portion 123b, and stagnation of the flush water occurs.

The drain pipe connecting portion 124 includes an outflow cylindrical portion 125 having an outflow port 124a, and a circular first cylindrical connecting portion 126 and a second cylindrical connecting portion 127 concentric with the outflow port 124a. The outflow tube portion 125 is inserted into a drain pipe P connected to a downpipe, thereby preventing flush water from leaking out.

In addition, a throttle portion 124 b serving as a throttle portion is formed at a middle stage of the outflow cylinder portion 125 . The flow path of the throttle portion 124b and the socket flow path 123a of the outflow cylinder portion 125 form a narrow flow path area in a concentric circle, and the flow path area of the outflow cylinder portion 125 is sharply reduced, whereby the occurrence of siphon is rapidly reduced. It is formed integrally with the outflow cylinder part 125 by injection molding.

FIG. 16 is an enlarged cross-sectional view showing the vicinity of the drain pipe connection portion 124 . In Fig. 16, the first cylindrical connecting portion 126 and the second cylindrical connecting portion 127 are used to alternatively connect the cylinders of the drain pipes P (refer to FIG. The gap d1 between the first cylindrical connecting portion 126 and the gap d2 between the first cylindrical connecting portion 126 and the second cylindrical connecting portion 127 are formed to be larger than the wall thickness t2 of the drain pipe P, so that the wall thicknesses t1 and t2 are different. A drain pipe P is inserted therebetween. The connection surface of the first cylindrical connection portion 126 or the second cylindrical connection portion 127 is engaged with the outer peripheral surface of the drain pipe P by fitting the drain pipe P with an adhesive.

In order to facilitate such a bonding operation, the following configurations can be adopted. That is to say, the first cylindrical connection portion 126 is elongated downward toward the outflow cylindrical portion 125 . In addition, the second cylindrical connecting portion 127 is elongated downward from the first cylindrical connecting portion 126 . Thereby, since the cylindrical portion positioned on the inner peripheral side is shorter than the cylindrical portion positioned on the outer peripheral side, in order to apply the adhesive to the connecting surface of the first cylindrical connecting portion 126 or the second cylindrical connecting portion On the connection surface of 127, the inner tube does not become an obstacle, and the working space for bonding is ensured, which makes the bonding work easier.

FIG. 17 is a view of the drain socket 120 viewed from the side, and FIG. 18 is a bottom view of the drain socket 120 . As shown in FIGS. 17 and 18 , at the bottom of the drain socket 120 , a socket fixing portion 128 is integrally formed. The socket fixing part 128 is used to fix the drainage socket 120 on the floor FL. A socket fixing leg 128d is provided on the outer peripheral side of the second cylindrical connection part 127, and a socket fixing leg 128d is provided along with the socket fixing leg 128d. The flat plate portion 128a extending almost into a quadrilateral in the horizontal direction is screwed with screws 128c through four screw holes 128b of the flat plate portion 128a, whereby the drain socket 120 is fixed on the floor FL.

Referring back to FIG. 15 , toilet fixing portions 129 , 129 are formed on the sides of the drain socket 120 . The toilet fixing parts 129, 129 are parts for fixing the toilet body 111 on the upper part of the drain socket 120, and screw fixing parts 129a, 129a are respectively provided on the upper surface thereof. The screw fixing portions 129a, 129a are symmetrically formed with respect to the longitudinal direction of the toilet body 111 and in a direction perpendicular to the longitudinal direction. That is, the screw fixing portions 129a, 129a are formed at the same position as the socket side fixing portion 111d of the toilet body 111 even when the direction of the drain socket 120 is reversed.

Next, the arrangement operation of the flush toilet 110 will be described. First, when the drain pipe PA shown in FIG. 12(A) is installed at the distance L1 (120mm) shown in FIG.

FIG. 19 is an explanatory view explaining the work of installing the drain socket 120 . First, the drain pipe P is cut off at a predetermined height (for example, 60 mm) from the ground. Then, confirm the front and rear of the drain socket 120, make the center line of the drain socket 120 coincide with the center line of the toilet body 111, and insert the first cylindrical connecting portion 126 of the drain socket 120 into the drain pipe P, as shown in Figure 20 Temporarily position drain socket 120 as shown in . At this time, the drain socket 120 is temporarily positioned so that the toilet connecting portion 121 points forward. Next, using the screw holes 128b (see FIGS. 17 and 18 ) of the socket fixing portion 128, a pilot hole is drilled on the floor surface FL.

Next, the drain socket 120 is removed from the floor FL, and an adhesive is applied to the connection surface of the first cylindrical connection portion 126 of the drain socket 120 . On the other hand, an adhesive is applied to the outer peripheral surface of the drain pipe P as well. Then, the drain socket 120 is fitted into the drain pipe P to restore the drain socket 120 to the temporarily positioned position. Thereby, as shown in FIG. 14, the 1st cylindrical connection part 126 is engaged with the drainpipe P via an adhesive agent, and is connected thereby. In this state, the screw holes 128b at four locations of the socket fixing portion 128 are screwed to fix the drain socket 120 on the floor FL.

Next, as shown in FIG. 15 , the toilet body 111 is placed on the floor FL by aligning the discharge port 116 of the toilet body 111 with the inlet 121a of the toilet connecting portion 121 of the drain socket 120 . The discharge port 116 is thereby inserted into the inflow port 121 a of the toilet connection 121 and sealed by the sealing member 122 . Then, the screws 129b, 129b are inserted into the socket side fixing portion 111d of the toilet body 111 and the toilet fixing portions 129, 129, respectively, whereby the toilet body 111 is fixed to the drain socket 120.

Next, as shown in FIG. 13(B), the operation of connecting the drain socket 120 in the case where the drain pipe PA is disposed at a distance L2 (200 mm) from the front wall WF of the bathroom will be described. This construction operation is the same as the above operation except that the direction in which the drain socket 120 is installed is different. That is, as shown in FIG. 21, the drain socket 120 is arranged such that the toilet connection portion 121 is directed toward the front wall WF. Thereby, even if the position of the drainpipe P is different, it is possible to install the toilet body 111 at a distance from the front wall WF to the inlet 121a by only changing the position of the drain socket 120 by (L1+L2)/ 2 to express the same position.

Therefore, according to the above embodiment, even if the drain pipe P is arranged at a different position, the toilet body 111 can be installed at the same position in the toilet by changing the direction in which the drain socket 120 is installed. Accordingly, it is not necessary to use different drain sockets 120 depending on the arrangement positions of the drain pipes P. FIG.

Next, when the outer diameters of the drain pipes P are different, the installation work of the toilet body 111 can be performed as follows. That is to say, as shown in FIG. 12(C) and FIG. 12(D), in the case of using a drain pipe PC or PD with an outer diameter D2, in addition to applying the adhesive to the drain receiver shown in FIG. Except for the connection surface of the second cylindrical connection part 127 of the port 120, the same operations as above are performed. That is, the drain socket 120 is the same, and it is only necessary to change the application surface of the adhesive according to the outer diameters of the drain pipes PC and PD. In addition, as shown in FIG. 16, since the gap d1 between the outflow cylindrical portion 125 and the first cylindrical connecting portion 126 and the gap d2 between the first cylindrical connecting portion 126 and the second cylindrical connecting portion 127 are larger than the drain The wall thickness t2 of the pipe PB and the drain pipe PD, so these drain pipes P with a thick wall thickness t2 can also be connected by the same drain socket 120 .

Therefore, the drain socket 120 can adapt to the various structures shown in FIGS. The drainage pipe P is excellent in construction workability.

In addition, in order to rapidly generate siphon, the drain socket 120 has the following configuration. FIG. 22 is an enlarged cross-sectional view showing the vicinity of the drain socket 120 .

The drain socket 120 is equipped with a stepped portion 123b between the toilet connecting portion 121 and the connecting pipe portion 123. The flushing water impacts the stepped portion 123b and its flow direction changes, thereby forming a water film, obtaining a delay effect of flushing water, and inducing siphon occur. This step portion 123b is formed by eccentrically forming the inlet port 121a and the outlet port 124a in the socket channel 123a.

A throttle portion 124 b is formed on the outflow port 124 a of the drain socket 120 . The throttle portion 124b increases the delay effect of flush water in the vicinity of the outlet 124a. The throttle portion 124b and the stepped portion 123b reinforce each other, so that the siphon can be generated more quickly and reliably.

Since the throttle portion 124b is formed integrally with the drain socket 120 by resin injection molding, it is not necessary to assemble it on the drain pipe P as described in the prior art, and the installation work is excellent. The effect of the siphon is damaged due to the surge of water pressure during drainage.

In addition, in the above-described embodiment, other operations and effects described below are achieved.

(1) Since the drain socket 120 is screwed to the floor FL at the socket fixing portion 128, the drain pipe P and the drain socket 120 can be reliably engaged.

(2) Since the drain pipe P is engaged with the first cylindrical connection part 126 or the second cylindrical connection part 127 of the drain socket 120 via an adhesive, the two are reliably connected and water leakage during reverse flow can be prevented.

(3) Since the toilet main body 111 is screwed and fixed at the position of the toilet fixing part 129, in addition to reliably fixing both, since the rear fixing position of the toilet main body 111 is located above the floor FL, cleaning etc. becomes easy.

(4) Since the outflow cylindrical portion 125 is provided on the innermost peripheral side of the drain socket 120, all the flushing water is reliably guided into the drain pipe P, and therefore does not flow from the drain pipe P to the first cylindrical connection portion 126 or Water leakage occurs at the connection portion of the second cylindrical connection portion 127 .

Fig. 23 is a sectional view showing a drain socket 120B according to the third embodiment. The drain socket 120B in FIG. 23 is equipped with the connection pipe part 123B which connects the toilet connection part 121B and the outflow cylinder part 125B by the inclined socket flow path 123Ba. The socket flow path 123Ba has a flow path flowing along the inclined surface 123Bb of the inner wall of the connecting pipe portion 123B. In addition, a throttle portion 124bb is formed in connection with the lower end of the inclined surface 123Bb. The throttle portion 124bb is provided with a throttle flow path 124Bc that is eccentric to a central axis of a certain diameter of the throttle portion 124bb, and the flat surface of the throttle flow path 124Bc and the lower end of the inclined surface 123Bb serves as a retention surface 124Bd.

If this drain socket 120B is used, the flushing water flowing into the toilet connecting portion 121B flows along the inclined surface of the connecting pipe portion 123B, becomes horizontal at the retention surface 124Bd, and then flows out from the throttle flow path 124Bc. Therefore, in the drain socket 120B, due to the positional relationship between the inclined surface 123Bb of the connecting pipe portion 123B and the throttle flow path 124Bc of the throttle portion 124bb, the direction of the flushing water is changed to the horizontal direction, so the vicinity of the throttle portion 124bb is implemented. The occurrence of water film can induce siphon early.

Fig. 24 is a sectional view showing a drain socket 120C according to the fourth embodiment. Compared with the drain socket 120B in FIG. 23 , the drain socket 120C in FIG. 24 is characterized in that the throttling portion 124Cb is located at the lower end of the outflow cylinder portion 125C, that is, near the outlet 124a, and the throttling portion 124Cb The position of the flow channel 124Cc is eccentric to the side of the inclined surface 123Cb.

That is, the flow path between the upstream side of the throttle portion 124Cb and the lower end of the inclined surface 123Cb is formed to have a long height H. In addition, the throttle flow path 124Cc of the throttle portion 124Cb is formed eccentrically so that the flush water flowing along the inclined surface 123Cb hits the retention surface 124Cd provided on the opposite side to the inclined surface 123Cb side. If this drain socket 120C is used, the flushing water flowing along the inclined surface 124Cb of the drain pipe connection portion 124C hits the retention surface 124Cd of the throttle portion 124Cb, and stagnates between the lower end of the inclined surface 123Cb and the throttle portion 124Cb. A siphon occurs. By disposing the throttle portion 124Cb at an eccentric position in this way, siphon generation can be rapidly performed by the flush water flowing along the inclined surface 123Cb. Also, since the flush water stays in the long flow path (height H) between the inclined surface 123Cb and the throttle portion 124Cb, the water level difference with the flush water stagnant on the bowl surface of the toilet body increases, and the siphon force can be increased.

Fig. 25 is a sectional view showing a drain socket 120D according to the fifth embodiment. The drain socket 120D in FIG. 25 is characterized in that it has an outflow cylinder portion 125D extending below the socket fixing portion 128Dd, and a throttle portion 124Db is provided at the lower end of the outflow cylinder portion 125D. Here, FIG. 25 shows the situation where the flush toilet is installed in the bathroom on the second floor of a multi-storey building. The drain socket 120D is fixed to the floor FL by the socket fixing portion 138Dd. In addition, the outflow cylinder part 125D of the drain socket 120D extends downward from the floor FL of the second floor, and is connected by being inserted into the drain pipe P disposed between the ceiling of the first floor. The drain pipe P is connected to the transverse branch drain pipe PS bent almost at right angles.

Moreover, the throttle part 124Db is attached to the lower end of the said drain socket 120D. FIG. 26 is an enlarged cross-sectional view showing the vicinity of the throttle portion 124Db. The throttle part 124Db is detachably attached to the lower end of the outlet tube part 125D. That is, the throttle portion 124Db includes a throttle plate 124Dd having a throttle flow path 124Dc. The external thread 124De is formed on the outer periphery of this throttle plate 124Dd, and is screwed with the internal thread 125Da formed at the lower end of the inner periphery of the outflow cylinder portion 125D, so that the throttle plate 124Dd is detachably mounted on the outlet cylinder portion 125D. lower end. Furthermore, an attachment knob 124Df for facilitating the attachment work is formed on the outer peripheral lower end of the throttle plate 124Dd.

If the drain socket 120D according to this embodiment is used, since the lower end of the outflow cylinder portion 125D extends below the floor FL, and the throttle portion 124Db is provided at the lower end, the water level for siphon generation is increased, and a large drain can be obtained. Siphon force. In addition, since the throttle portion 124Db is formed separately from the drain socket 124D, the manufacture of the drain socket 120D itself becomes easy. Moreover, since the throttling part 124Db is firmly installed on the outflow cylinder part 125D by the internal thread 125Da and the external thread 124De, it will not be separated or flutter to affect the occurrence of siphon.

In addition, as a structure which attaches a throttle part, the structure shown in FIG. 27 and FIG. 28 which is a top view of the throttle part 124Ea may be used. On both sides of the throttle plate 124Eb of the throttle part 124Ea, the middle locking part 124Ec is protruded, and this locking part 124Ec is inserted into the recess 125Ea formed at the lower end of the outflow cylinder part 125E, and is rotatably supported on the outflow cylinder. The locking arm 125Eb at the lower end of the portion 125E presses it. With this configuration, since the throttle portion 124Ea is positioned in the circumferential direction by the positional relationship between the locking portion 124Ec and the recess 125Ea, even if the throttle flow path is arranged eccentrically, it can be reliably attached to a predetermined position. Position, you can get the desired siphon occurs.

29 is a sectional view showing the vicinity of the drain socket 120F according to the sixth embodiment, and FIG. 30 is an explanatory diagram illustrating the positional relationship between the trap drain pipe 111Fb of the toilet body 111F and the drain socket 120F. The present embodiment is characterized in that a throttle portion 116Fa is formed on the discharge port 116F of the toilet main body 111F, and a toilet connecting portion 121F is positioned at the drain socket 120F of the trap drain pipe 111Fb. That is, by providing the throttle portion 116Fa near the discharge port 116F, flushing water can be stagnated on the upstream side of the drain socket 120F to advance the timing of siphoning, thereby reducing the amount of flushing water.

In addition, a positioning portion 111Fc is formed on the inner peripheral side of the lower end portion of the trap drain pipe 111Fb, and the positioning portion 111Fa of the toilet connection portion 121F of the drain socket 120F is engaged with the positioning portion 111Fc. In this way, through the positioning of both sides, the toilet body 111F and the drain socket 120F can be connected without the position of the throttling portion 116Fa fluctuating.

In addition, the throttling portion 116Fa may be formed in various forms such as being formed separately, taking a shed shape, or making it eccentric, other than being integrally formed with the trap drain pipe 111Fb.

The above-mentioned second to sixth embodiments can also be modified as follows.

(1) An installation mark may be provided as a mark indicating the front and rear of the drain socket when the drain socket is installed at a position that is easily seen from the outside, such as the outer wall of the drain socket. The installation of the drain socket is reliably carried out by the marking for installation, whereby the throttle part can be correctly installed on the toilet body.

(2) Even if the outflow cylindrical portion 125, the first cylindrical connecting portion 126, and the second cylindrical connecting portion 127 of the toilet connecting portion 121 are not coaxial, by considering the element that dirt is not blocked, it can be eccentrically Accelerates siphon induction.

(3) In the above embodiment, the case where the polyvinyl chloride pipe is used for the drain pipe P has been described, but it is not limited thereto, and a configuration also applicable to lead pipes may be adopted by using an adapter or the like.

(4) The outer wall of the outflow cylinder portion 125 of the drain socket 120 and the inner wall of the first cylindrical connecting portion 126, and the outer wall of the first cylindrical connecting portion 126 and the inner wall of the second cylindrical connecting portion 127 can also be formed as It has a slope that widens radially toward the downstream side. Thereby, the fitting operation with the drain pipe P becomes easy, and when the drain socket 120 is molded by injection molding, the mold release can be simplified.

(5) It is also possible to form gaps on part of the outflow cylinder part 125 and the first cylindrical connection part 126, so that the coating and bonding surface of the first cylindrical connection part 126 and the second cylindrical connection part 127 can be formed. Dosing work becomes easier. In this case, if necessary, the downward lengths of the outflow cylindrical portion 125 and the first cylindrical connection portion 126 may be the same.

Next, the seventh and eighth embodiments will be described.

Fig. 31 is a cross-sectional view showing a peripheral portion of a flush toilet 210 using a seventh example of a drain socket 220 according to an embodiment of the present invention. The flush toilet 210 is equipped with a toilet body 211 made of earthenware integrally formed with a toilet bowl 211a and a drain line 211b, a resin drain socket 220, a flush water retaining portion 230 attached to the drain socket 220, and a flush tank, etc. . The drain socket 220 connects the discharge port 216 of the toilet body 211 to the drain pipe P protruding from the floor FL.

When constructing the drainpipe P, the same method as that of the second embodiment using Fig. 12 and Fig. 13 is adopted. Thus, the drain socket 220 can be constructed at different distances L1 (120 mm), L2 (200 mm) from the front wall WF of the toilet, and is compatible with all four drain pipes P and the two construction methods. Next, the drain socket 220 and the flush water retaining portion 230 will be described in detail.

32 is an enlarged cross-sectional view showing drain socket 220 and flush water retaining portion 230 in FIG. 31 , and FIG. In Fig. 32 and Fig. 33, the drain socket 220 is integrally formed with a toilet connecting part 221, a connecting pipe part 223, a drainpipe connecting part 224, a socket fixing part 228 (referring to Fig. 35), and a toilet fixing part 229 (Fig. 33). In addition, the drain socket 220 incorporates a flushing water retaining portion 230 for inducing siphon in its upper portion.

The toilet connecting portion 221 is inserted into the outlet side of the drain line 211b, thereby connecting the discharge port 216 of the drain line 211b to the inflow port 221a.

Moreover, the connection pipe part 223 has the connection flow path 223a which eccentrically connects the said inlet port 221a and the outlet port 224a along the inclined path. The eccentricity La of the connecting pipe portion 223 is formed to be La=(L2-L1)/2.

The drain pipe connecting portion 224 includes an outflow cylindrical portion 225 having an outlet 224a, and a circular first cylindrical connecting portion 226 and a second cylindrical connecting portion 227 concentric with the outlet 224a. The outflow tube part 225 is inserted into the drain pipe P connected to the downpipe, thereby preventing flush water from leaking out.

FIG. 34 is an enlarged cross-sectional view showing the vicinity of the drain pipe connection portion 224 . In Fig. 34, the first cylindrical connecting portion 226 and the second cylindrical connecting portion 227 are used to alternatively connect the cylinders of the drain pipes P (refer to FIG. The gap d1 with the first cylindrical connection part 226 and the gap d2 between the first cylindrical connection part 226 and the second cylindrical connection part 227 are formed to be larger than the wall thickness t2 of the drain pipe P, and all the drain pipes P are inserted therebetween. possible. The inner wall surface of the first cylindrical connection portion 226 or the second cylindrical connection portion 227 is engaged with the outer peripheral surface of the drain pipe P by fitting the drain pipe P with an adhesive.

In order to facilitate such a bonding operation, the following configurations can be adopted. That is to say, the first cylindrical connection portion 226 is elongated downward toward the outflow cylindrical portion 225 . In addition, the second cylindrical connecting portion 227 is elongated downward toward the first cylindrical connecting portion 226 . Thereby, since the cylindrical portion positioned on the inner peripheral side is shorter than the cylindrical portion positioned on the outer peripheral side, in order to apply the adhesive to the inner wall surface of the first cylindrical connecting portion 226 or the second cylindrical connecting portion 227 The inner wall surface, the inner tube does not become an obstacle, and ensures the working space for bonding, making the bonding work easier.

FIG. 35 is a side view of the drain socket 220 , and FIG. 36 is a bottom view of the drain socket 220 . As shown in FIGS. 35 and 36 , at the bottom of the drain socket 220 , a socket fixing portion 228 is integrally formed. The socket fixing part 228 is a part for fixing the drain socket 220 to the floor FL, and is provided with a flat plate part 228a extending horizontally from the outer peripheral side of the second cylindrical connection part 227 into a nearly quadrangular shape. The screw holes 228b at four locations are screwed together by screws 228c, whereby the drain socket 220 is fixed on the floor FL.

Referring back to FIG. 33 , a toilet fixing portion 229 is formed on the side of the drain socket 220 . The toilet fixing parts 229, 229 are parts for fixing the toilet body 211 on the upper part of the drain socket 220, and screw fixing parts 229a, 229a are respectively provided on the upper surface thereof. The screw fixing portions 229a, 229a are formed bilaterally symmetrically with respect to the longitudinal direction of the toilet body 211 and in a direction perpendicular to the longitudinal direction. That is, the screw fixing parts 229a, 229a are formed at the same position as the lower end side fixing part 211d of the toilet body 211 even when the direction of the drain socket 220 is reversed.

FIG. 40 is an enlarged cross-sectional view showing the vicinity of the flush water retaining portion 230 mounted on the upper portion of the drain socket 220 , and FIG. 41 is a plan view of the flush water retaining portion 230 . In FIGS. 40 and 41 , the flush water retention unit 230 includes a retention body 231 and a rubber mounting body 232 . The retention body 231 has a cylindrical side wall portion 231a fitted to the toilet connecting portion 221 on the upper portion of the drain socket 220, and a lower throttle 231b protruding from the lower end of the side wall portion 231a to the inner peripheral side to form a flow path 231c. And the clamping recess 231d which supports the rubber mounting body 232, these are integrally formed of resin. In addition, the rubber mounting body 232 is equipped with an annular fixing protrusion 232a fitted into the retention body 231 by being pressed into the clamping recess 231d, and a sealing portion 232b sealing the outer periphery of the discharge port 216 of the drain pipe 211b along the A plurality of pleats 232c supporting the periphery of the drain pipe 211b and an upper throttle 232d are formed on the inner periphery of the sealing portion 232b, and these are integrally formed of rubber. That is to say, in the state where the retention body 231 of the flush water retention part 230 is mounted on the upper part of the drain socket 220, the outer periphery of the drain pipe 211b of the toilet body is sealed by the sealing part 232b of the rubber mounting body 232. connect. In addition, the flush water stagnation part 230 is provided with an upper throttle 232d and a lower throttle 231b in order from the upstream side, and narrows the flow path area so that the flush water discharged from the discharge port of the drain pipe 211b temporarily stagnates. Siphon-inducing traps.

Next, the arrangement operation of the flush toilet 210 will be described. First, when the drain pipe PA shown in FIG. 12(A) is installed at the distance L1 (120mm) shown in FIG.

FIG. 37 is an explanatory view explaining the work of installing the drain socket 220 . First, cut the drain pipe P at a height of 60 mm from the ground. Then, confirm the front and back of the drain socket 220, make the center line of the drain socket 220 coincide with the center line of the toilet body 211, insert the first cylindrical connecting portion 226 of the drain socket 220 into the drain pipe P, as shown in Figure 38 Temporarily position drain socket 220 as shown in . At this time, the drain socket 220 is temporarily positioned so that the toilet connecting portion 221 points forward. Next, a positioning line is drawn on the floor FL along the lower edge of the drain socket 220, and a bottom hole is drilled on the floor FL using the screw hole 228b of the socket fixing portion 228 (see FIGS. 35 and 36).

Then, the drain socket 220 is moved away from the floor FL, and the adhesive is applied to the inner wall of the first cylindrical connection portion 226 of the drain socket 220. On the other hand, the adhesive is also applied to the outer peripheral surface of the drain pipe P. Cloth adhesive. In this way, the first cylindrical connection portion 226 is fitted into the drain port P, and the drain socket 220 is returned to the position where it was temporarily positioned. In this way, as shown in FIG. 32, the first cylindrical connecting portion 226 is engaged with the drain pipe P via an adhesive, and in this state, the screws at four positions of the socket fixing portion 228 are screwed. hole 228b, thereby fixing the drain socket 220 on the floor FL.

Next, as shown in FIG. 33 , the toilet body 211 is placed on the floor FL so that the outlet 216 of the toilet body 211 faces the inlet 221a of the toilet connecting portion 221 of the drain socket 220 . Thereby, the discharge port 216 is inserted into the inflow port 221 a of the toilet connection part 221 and is sealed by the seal part 232 b of the rubber mounting body 232 . Then, the screws 229b, 229b are respectively inserted into the lower end fixing portion 211d of the toilet body 211 and the toilet fixing portions 229, 229, whereby the toilet body 211 is fixed to the drain socket 220. Then, the toilet main body 211 is fixed via another not-shown fixing member, thereby being installed on the floor FL.

Next, as shown in FIG. 13(B), the operation of connecting the drain socket 220 in the case where the drain pipe PA is disposed at a distance L2 (200 mm) from the front wall WF of the bathroom will be described. This construction operation is the same as the above operation except that the direction in which the drain socket 220 is installed is different. That is, as shown in FIG. 39, the drain socket 220 is arranged so that the toilet connection portion 221 is directed toward the front wall WF. Thereby, even if the position of the drain pipe P is different, the toilet body 211 can be installed at the same position only by changing the position of the drain socket 220 .

Therefore, according to the above embodiment, even if the drain pipe P is constructed at a different position, the toilet body 211 can be installed at the same position in the toilet by changing the direction in which the drain socket 220 is installed. Thereby, it is not necessary to use different drain sockets 220 depending on the construction position of the drain pipe P. As shown in FIG.

Next, when the outer diameters of the drain pipes P are different, the installation work of the toilet body 211 can be performed as follows. That is to say, as shown in Fig. 12(C) and Fig. 12(D), in the case of using the drainpipe PC or PD whose outer diameter is D2, in addition to applying the adhesive to the drainpipe shown in Fig. 32 Except for the inner peripheral surface of the second cylindrical connection portion 227 of the socket 220, the same operations as above are performed. That is, the drain socket 220 is the same, and it is only necessary to change the application surface of the adhesive according to the outer diameters of the drain pipes PC and PD. In addition, as shown in FIG. 34, since the gap d1 between the outflow cylindrical portion 225 and the first cylindrical connecting portion 226 and the gap d2 between the first cylindrical connecting portion 226 and the second cylindrical connecting portion 227 are larger than the drain pipe PB and the drain The wall thickness t2 of the pipe PD, so these drain pipes P with a thick wall thickness t2 can also be connected by the same drain socket 220 .

Therefore, the drain socket 220 can be adapted to those shown in Fig. 12 and Fig. 13 with different outer diameters, wall thicknesses, and installation positions only by properly selecting its direction or the surface on which the adhesive is applied, and using other same construction conditions. Various drainage pipes P are excellent in construction workability.

In addition, as shown in FIG. 40, the drain socket 220 is provided with a flushing water retaining portion 230, thereby having an effect of rapidly performing siphon generation.

When flush water is supplied to the bowl portion 211a of the toilet body 211 from a flush water supply mechanism not shown, the flush water flows into the drain socket 220 through the drain line 211b. At this time, since the flushing water stagnation part 230 is equipped with an upper throttle 232d near the inflow port 221a and a lower throttle 231b on the downstream side, the area of the flow path is locally changed in two stages and the connection flow path is enlarged. The stagnation effect of flushing water in 223a can easily cause the generation of siphon. Moreover, since the upper throttling 232d and the lower throttling 231b are two-stage throttling, the flow path area at each place can be larger than that of throttling at one place, and the dirt and the like are not easy to be blocked, and rapid drainage is realized.

In addition, since the flush water retaining portion 230 is formed separately from the drain socket 220, the injection molding of the drain socket 220 is not restricted by manufacturing conditions such as mold release, and the most suitable design conditions for inducing siphon can be considered. , form the lower throttling 231b and the upper throttling 232d of complex shapes.

In addition, since the drain socket 220 is equipped with the connecting pipe portion 223, the inclined connecting flow path 223a in the connecting pipe portion 223, that is, the inflow port 221a and the discharge port 224a are eccentric, so because the upper part of the connecting flow path 223a is flushed Water delays the effect, so siphoning is more likely to occur.

In addition, the connection flow path 223a does not need to increase the draft of the metal mold during injection molding, that is, it is not necessary to increase the area of the pipeline more than necessary, thereby enabling rapid siphoning with a small amount of flushing water. occurs, and a large siphon force can be obtained.

Next, other embodiments of the drain socket according to the above-mentioned embodiments will be described. Fig. 42 is a cross-sectional view showing a drain socket 220B and a flush water retaining portion 230B according to the eighth embodiment. In FIG. 42 , the drain socket 220B is characterized in that it is configured as a straight pipe concentric with the inflow port 221Ba and the outflow port 224Ba, and that the flush water retaining portion 230B is fitted and bonded to the outflow cylinder portion 225B.

That is, the flush water retaining portion 230B forms a cylindrical side wall portion 231Ba, and the throttle portion 231Bb protruding from the side wall portion 231Ba to the inner peripheral side is bonded to the outflow tube at the outer peripheral surface of the side wall portion 231Ba. inner periphery of portion 225B. Since the throttle portion 231Bb is formed separately from the drain socket 220B, it is not limited to the shape of the drain socket 220B, and can be formed so that the flow path area narrows toward the downstream side according to the most suitable chemical conditions.

43 to 45 are cross-sectional views showing modified examples of flush water retaining portion 230B of FIG. 42 . That is to say, for the flush water stagnation part 230B of FIG. 42, the flush water stagnation part 230C of FIG. Example of section 231Db. Further, the flush water retaining portion 230E in FIG. 45 has a throttle portion 231Eb on the downstream side, and has a flow path 231Ec whose temporary flow path area increases from the upstream side to the downstream side. Temporary stagnation on the upstream side of the throttle portion 231Eb is increased by such a flow path 231Ec, and siphon generation can be rapidly induced.

46 to 52 are cross-sectional views showing another embodiment of the flush water retaining portion. The flush water retaining portion of this embodiment is characterized in that a plate-shaped resin plate having a throttling portion is fixed to the lower end of the outflow cylinder portion. constitute. That is, the flush water retaining portion 230F in FIG. 46 has an annular engaging portion 230Fa on its outer periphery, and the annular engaging portion is fixed to the outer periphery of the lower end of the outflow cylinder portion 225B by fitting.

In the flushing water retaining portion 230G of FIG. 47, a flange 225Ga is formed at the lower end of the outflow cylinder portion 225G, and a plate-shaped resin plate is bonded to this flange 225Ga.

The flushing water stagnation part 230H of Fig. 48 forms a step part 231Ha for positioning on its outer periphery, and engages this step part 231Ha with a step part 225Ha for positioning formed on the outer periphery of the lower end of the outflow tube part 225H, thereby position.

The flush water retaining portion 230J in FIG. 49 is positioned by forming positioning protrusions 231Ja on the outer peripheral surface and engaging them with the engaging holes 225Jb of the flange 225Ja of the outflow cylinder portion 225J.

The flush water retaining portion 230K in FIG. 50 has a plurality of engagement holes 231Ka formed on its outer periphery, and the elastic protrusion 225Ka of the outflow cylinder portion 225K is pressed into the engagement holes 231Ka.

The flush water retaining portion 230L in FIG. 51 has a flange 231La formed on its outer periphery, and this flange 231La is engaged with the flange 225La of the outflow cylinder portion 225L and fixed by screws 231Lb.

The flush water retaining portion 230M in FIG. 52 is fixed to the lower end of the outflow tube portion 225M having a skirt portion 225M whose flow path area increases downstream.

The seventh and eighth embodiments described above can be modified, for example, as follows.

(1) The drain socket may be of a so-called wall drain type constructed on the front wall, in addition to the configuration in which the inlet and outlet are eccentric, or a straight pipe shape, and the configuration is not particularly limited.

Next, the ninth to eleventh embodiments will be described.

Fig. 53 is an explanatory view showing a longitudinal section of a siphon jet flush toilet 310 to which a drain socket 360 is connected as a ninth embodiment of the present invention. This siphon jet type flush toilet 310 causes a siphon effect by jetting water from a jet ejection hole 322 to be described later in accordance with flushing. Next, each part of the flush toilet 310 will be described with reference to FIG. 53 .

As shown in FIG. 53, the flush toilet 310 is provided with a bedpan portion 320 for receiving waste such as excrement or toilet paper. The peripheral wall of the toilet bowl 320 is composed of a water-covered surface 323 that contacts the reservoir water RW even when the flush toilet 310 is not flushing, and an exposed surface 324 that does not contact the reservoir water RW when the flush toilet 310 is not flushing.

Inside the flush toilet 310, a mechanism for supplying water to the toilet portion 320 (hereinafter referred to as a supply mechanism) and a mechanism for discharging the waste in the toilet portion 320 to the drain pipe 390 (hereinafter referred to as a discharge mechanism) are provided. mechanism).

First, the supply mechanism will be described. At the rear of the flush toilet 310, a flush water supply hole 340 is provided as a hole for connecting the water supply pipe SL of the flush water tank WT. The flush water is supplied to the water path 341 from the flush water flow path of the flush water tank WT. A branch hole 342 is formed through the upper inner wall of this flush water supply channel 341 .

The flush water supply channel 341 on the downstream side from the branch hole 342 has a stagnation portion 341a extending obliquely downward. A jet water supply hole 345 is provided on the side wall of the stagnation portion 341a. The jet water supply hole 345 passes through a jet water supply channel 346 formed in a curved shape inside the toilet and a jet discharge hole formed at a position facing the discharge port 325. 322 are connected.

In addition, the flush water supply channel 341 communicates with the edge water supply channel 343 via the branch hole 342 . The edge water supply channel 343 is a hollow portion formed on the inner side of the edge portion 321 over a range along the inner periphery of the upper end of the bedpan portion 320 . On the bottom wall of the edge water supply channel 343, a plurality of outlet holes 344 are formed at predetermined intervals.

The flush water supplied to the flush water supply hole 340 by free fall from the high water level in the flush water tank WL is guided obliquely downward by the flush water supply channel 341 and flows into the stagnation portion 341a. Further, the flush water reaching the stagnation portion 341a enters the jet water supply hole 345 which is a hole provided on the side wall of the stagnation portion 341a. Flush water is supplied to the jet feed water path 346 following this entry. The flush water supplied to the jet water supply channel 346 is jetted from the jet jet hole 322 . As shown in FIG. 53 , the jet discharge hole 322 is provided at a position almost facing the discharge port 325 via the concave portion 326 , and the energy of the flushing water is transmitted to the discharge mechanism after the discharge port 325 without waste.

The stored water in the flush water tank WL energized by the free fall is supplied to the flush water supply channel 341 at one go as flush water. Therefore, the stagnation portion 341a formed by the flush water supply channel 341 inclined downward becomes full after the water washing starts, and a part of the flush water is supplied to the edge water supply channel 343 from the branch hole 342 . The flush water supplied to the edge water supply channel 343 is spouted toward the bedpan portion 320 from the outlet hole 344 provided on the back side of the edge portion 321 .

Next, the discharge mechanism will be described. As shown in FIG. 53 , before the discharge port 325 formed in the depth of the recess 326 as a dirt reservoir, a drain path 330 is formed as a flow path of water and dirt. This drainage path 330 is connected with the connection path 331 by a connection path 331 extending obliquely upward from the discharge port 325, an ascending path 332 extending obliquely upward, connected with the ascending path 332, and a descending path 333 extending downward. to form. In addition, the height from the floor FL of the installation place of the flush toilet 310 to the terminal end of the descending path 333 is made into about 120 mm.

As shown in FIG. 53 , the descending path 333 extends toward the drainpipe 390 substantially vertically downward after passing the weir 334 at the highest position on the lower side of the inner wall of the ascending path 332 . Therefore, the drainage channel 330 in the vicinity of the weir 334 has a curved shape. The portion having such a shape is hereinafter referred to as a bent portion 335 .

These flow paths are formed integrally with the flush toilet 310 which is earthenware by molding the flow path shape into a plaster mold or a resin mold, but the flow paths may also be formed by members separate from the flush toilet 310 . For example, it is also possible to adopt a configuration in which all or part of these flow paths are formed by other members such as resin and connected to the discharge port 325 .

The flushing water from the aforementioned jet ejection hole 322 is strongly ejected toward the discharge port 325 , and by this ejection, the standing water RW in the connection path 331 and the ascending path 332 or the dirt accumulated in the concave portion 326 is discharged toward the weir 334 . push in the direction. As a result, the water level in the ascending path 332 rises sharply beyond the normal water level line WL, and the connecting path 331, ascending path 332, and curved portion 335 immediately become full of water. A water level difference is generated between the surfaces of the water RW. Due to this water level difference, a pressure difference is generated between the inside of the descending path 333 and the bedpan portion 320, and a downward suction force is generated. This effect is hereinafter referred to as siphon effect. By this siphon action, the standing water RW or flushing water contaminated by the waste in the toilet bowl portion 320 is drawn together in the direction of the weir 334 .

Furthermore, the descending passage 333 has an expansion part 333a in which the diameter of the pipe line is expanded and a terminal narrowing part 333b in which the opening area is narrower than the expansion part at its terminal part. The duration of the siphon effect can be prolonged by virtue of the throttling structure formed by the expansion portion 333a and the end throttling portion 333b.

The descending path 333 communicates with a polyvinyl chloride drain pipe 390 erected from the floor FL via a resin drain socket 360 . This drainage pipe 390 is relative to the "sewage pipe" mentioned in the claims.

Furthermore, the distance from the rear end of the flush toilet 310 shown in FIG. It is 190mm. In other words, if the drainpipe 390 is erected at a position 200 mm away from the wall of the toilet, then the gap between the back of the flush tank WL and the wall of the toilet can be 10 mm to ensure that the flush toilet 310 and the flush tank WL are installed. position. In this way, if the flush toilet 310 and the flush water tank WL are positioned, the drain pipe 390 can be provided at a position close to the wall on the building side. As a result, the distance from the drain pipe 390 to the pipe space is shortened, and smooth transfer of waste can be ensured. Of course, when the gap with the wall of the bathroom is not considered, the above-mentioned distance may be set to a value of 200 mm or less.

A cross-sectional detail of the drain socket 360 is shown in FIG. 54 . As shown in FIG. 54, the drain socket 360 is a base member 380 fixed to the floor FL by bolts 385. As a member connected to this base member 380, it becomes the flow of accumulated water RW, flushing water, and dirt. The so-called main body member 371 formed by the main pipe 373 of the pipe is composed of two members. The base member 380 corresponds to the first member described in the claims, and the main body member 371 corresponds to the second member described in the claims. The details of each component will be described below.

As shown in FIG. 54, the main body member 371 is provided at its upper end with a descending path fitting portion 371a into which the terminal end of the descending path 333 is inserted. The end of the descending passage 333 is provided on the installation surface 371b of the descending passage fitting portion 371a. The drain socket 360 is connected to the descending path 333 at this installation surface 371b.

A hollow and cylindrical main pipe passage 373 is formed below the descending passage fitting portion 371a. This main line 373 serves as a flow path for accumulated water, flushing water, and waste that flow in from the descending path 333 . The flow passage cross-sectional area of the main pipe 373 decreases sharply near the entrance of the main pipe 373 , and then gradually decreases toward the outlet of the main pipe 373 . In this way, two types of throttles, large and small, are provided on the main pipe 373 .

Around the outside of the main pipe 373 , two recesses, a first annular recess 364 and a second annular recess 362 are formed in order of approaching the main pipe 373 . The first annular recess 364 and the second annular recess 362 are grooves formed concentrically along the outer periphery of the main pipe 373 . In addition, by forming the first annular recess 364 and the second annular recess 362 , the space between the two recesses 364 , 362 forms a first annular protrusion 374 cylindrically protruding downward.

As shown in FIG. 54 , the drain pipe 390 is inserted into the second annular recess 362 . This drain pipe 390 is clamped by the elastic force of the reinforcing rib 366 on the inner peripheral wall and the outer peripheral wall above the second annular recess 362 .

The rib 366 is provided by bonding rubber having a weak elasticity and a predetermined thickness to the inner peripheral wall and the outer peripheral wall. In addition, there is an interval of approximately 1.5 mm between the ribs 366 on the inner peripheral wall side and the tips of the ribs 366 on the outer peripheral wall side. Therefore, the drain pipe 390 is inserted between the ribs 366 on the inner peripheral wall side and the ribs 366 on the outer peripheral wall side, thereby being weakly clamped by the ribs 366, and the drain pipe 390 is connected to the main body member 371 by this clamping.

As shown in FIG. 54 , a second annular convex portion 368 is formed on the outer side of the second annular concave portion 362 and protrudes downward in a cylindrical shape. In addition, an engaging piece 389 having a shape protruding toward the outer peripheral surface is formed at the tip of the second annular convex portion 368 . Inserting the second annular protrusion 368 with the engaging piece 389 into the base member 380, the drain socket 360 is integrated. Furthermore, the engaging pieces 389 are formed at four places at the front end of the second annular protrusion 368 , and this point will be described later together with the details of the method of inserting the second annular protrusion 368 into the base member 380 .

In the state where the drain socket 360 is integrated, the cover portion 387 serving as the lower peripheral wall of the main body member 371 covers the base member 380 from the outside. In addition, a window portion 388 (not shown in FIG. 54 ), which will be described later, is formed on a part of the cover portion 387 .

Next, the base member 380 will be described. The base member 380 is formed in the shape of an annular body having a hollow portion slightly larger than the outer diameter of the drain pipe 390 at its center. In the base member 380 , an annular groove having almost the same depth as the size of the second annular protrusion 368 is formed from the top surface to the vicinity of the bottom surface. The portion formed by this annular groove is called an annular recess 384 . The second annular convex portion 368 of the aforementioned main body member 371 is inserted into this annular concave portion 384 .

An engaging portion 382 for engaging an engaging piece 389 at the front end of the second annular convex portion 368 is provided on the outer peripheral wall of the annular concave portion 384 . The structure of this engaging portion 382 will be described with reference to FIGS. 55 to 57 . FIG. 55 is an explanatory view showing the upper surface of the base member 380 . As shown in FIG. 55 , on the base member 380 , as the engaging portion 382 , three normal engaging piece engaging portions 382 a and one protruding engaging piece engaging portion 382 p are formed. Furthermore, in FIG. 55, the front direction of the base member 380 is drawn to the right, and the protruding engaging piece engaging portion 382p is located on the front side of the base member 380 (the direction in FIG. 54 is to the right). .

55, three short normal engaging pieces 389a and one long protruding engaging piece 389p are formed at the front end of the second annular protrusion 368 on the main body member 371 side. The normal engaging piece 389 a is engaged on the normal engaging piece engaging portion 382 a of the base member 380 , and the protruding engaging piece 389 p is engaged on the protruding engaging piece engaging portion 382 p of the base member 380 . Furthermore, as shown in FIG. 55 , a normal engaging piece 389 a protrudes from the outer peripheral surface of the base member 380 when engaged.

As shown in FIG. 55, vertical grooves 382b and 382q extending straight from the top surface of the base member 380 to the bottom surface are formed on the normal engaging piece engaging portion 382a and the protruding engaging piece engaging portion 382p, and as The horizontal groove 382c and the horizontal groove 382r are grooves extending in the horizontal direction from the vertical groove 382b and the vertical groove 382q. The vertical groove 382q and the horizontal groove 382r are formed deeper than the vertical groove 382b and the horizontal groove 382c, and the vertical groove 382q penetrates the outer peripheral wall of the base member 380 .

The state of the vertical groove 382b and the horizontal groove 382c formed in the normal engaging piece engaging portion 382a is shown in FIG. 56 . FIG. 56 is an explanatory view showing a cross section of the engagement portion 382 taken along the center line C-C in FIG. 54 . As shown in FIG. 56, on the normal engaging piece engaging portion 382a, eight horizontal grooves 382c are formed from top to bottom of the vertical groove 382b. Both the width of the vertical groove 382b and the height of the horizontal groove 382c are formed so that the engaging piece 389a can enter, but the height of the horizontal groove 382c is slightly reduced near the convex portion 381 at the middle position. In addition, eight horizontal grooves 382r are formed in the same form as above in the protruding engaging piece engaging portion 382p.

If the main body member 371 is put on from above the base member 380 configured in this way, then as shown in FIG. 55 and FIG. , 382p longitudinal grooves 382b, 382q. Then, when the main body member 371 is rotated clockwise at a predetermined position, the four engaging pieces 389a, 389p enter the horizontal grooves 382c, 382r of the engaging portions 382a, 382p. When the main body member 371 is rotated with more than a certain force, the engaging pieces 389 entering the lateral grooves 382c, 382r get over the convex portion 381, and the four engaging pieces 389a, 389p are engaged with the respective engaging portions 382a, 382p. Thereby, the main body member 371 is mounted on the base member 380 .

Furthermore, in FIGS. 53 and 54 , there are four engaging pieces 389 a at the front end of the second annular convex portion 368 . 389p is engaged with the lowermost horizontal grooves 382c and 382r, and the height of the drain socket 360 from the floor FL becomes the lowest state.

The structure of the drain socket 360 has been described above. Next, a method of installing the drain socket 360 on the descending path 333 and the drain pipe 390 of the flush toilet 310 will be described. First, after the adhesive is coated on the inner side of the base member 380, the hollowed-out central part of the base member 380 is placed on the drain pipe 390, the base member 380 is glued on the ground FL, and four Bolt 385 is fixed. Next, cover the main body member 371 from above the base member 380 , insert the drain pipe 390 into the second annular recess 362 of the main body member 371 , and insert the second annular protrusion 368 into the annular recess 384 .

Next, the height of the drain socket 360 from the ground FL is adjusted so as to match the height from the ground FL to the end of the descending path 333 . The method of this adjustment will be described below with reference to FIGS. 57 to 59 . FIG. 57 is an explanatory diagram showing a perspective view of the base member 380 . As shown in FIG. 57, on the outer peripheral surface of the front surface of the base member 380, a longitudinal groove 382q and eight lateral grooves 382r are exposed. Eight scale lines are engraved at a pitch of 10 mm in the height direction next to each horizontal groove 382r, and a numerical value indicating the height from the floor surface FL to the installation surface 371b provided on the descending path 333 is engraved next to each of these scale lines. Specifically, as shown in FIG. 57, numerical values from 130 mm to 200 mm are expressed in units of 10 mm.

FIG. 58 shows the front of the drain socket 360 when the main body member 371 covers the base member 380 displaying the numerical value, and the four engaging pieces 389a, 389p are engaged in the lowermost horizontal grooves 382c, 382r. . As shown in FIG. 58, when the base member 380 is combined with the main body member 371, the protruding engaging piece 389p, the horizontal groove 382r to which the protruding engaging piece 389p is engaged, and the horizontal groove 382r engraved on this horizontal The "scale indicating a height of 130 mm" next to the groove 382r is exposed from the window portion 388 formed by cutting out a part of the outer peripheral front surface of the main body member 371 horizontally. That is to say, when the four engaging pieces 389a, 389p are engaged in the lowermost horizontal grooves 382c, 382r, although the height of the drain socket 360 from the floor FL to the installation surface 371b is 130mm, in order to show this In one state, the protruding engaging piece 389p disposed at a position corresponding to "the scale indicating a height of 130 mm" is exposed through the window portion 388 .

This Fig. 58 shows the same situation when viewing the drain socket 360 shown in Fig. 53 from the front (that is, the face at the front end of the flush toilet 310 when mounted on the flush toilet 310). In the flush toilet 310 shown in FIG. 53, the height of the flush toilet 310 from the floor FL of the installation place to the end of the descending path 333 is about 130 mm. Therefore, as shown in FIG. 58 , the height of the drain socket 360 from the floor surface FL to the installation surface 371b becomes the lowest state (the state where the height is 130 mm).

The adjustment of the height of the drain socket 360 from the floor FL is performed as follows. When the body member 371 engaged with the horizontal grooves 382c and 382r is rotated counterclockwise with a force exceeding a certain value, the four engaging pieces 389a and 389p move over the protrusion 381 to the positions of the vertical grooves 382b and 382q. Thereby, the engaged state of the four engaging pieces 389a, 389p is released, and the main body member 371 becomes a vertically movable state along the vertical grooves 382b, 382q. Furthermore, since the drain pipe 390 is weakly held by the rib 366, the rib 366 slides on the surface of the drain pipe 390 when the main body member 371 moves up and down. Therefore, the drain pipe 390 does not jump up and down with the movement of the main body member 371 .

Next, the main body member 371 is moved up and down to a desired position. Whether it has moved to the desired position can be confirmed by referring to the above-mentioned "scales engraved corresponding to the numerical values". For example, when raising the height of the drain socket 360 from the floor FL from 130 mm shown in FIG. The location is fine.

In addition, the window part 388 is opened so that there may be some margin along the direction (left direction in FIG. 58) in which the protruding engaging piece 389p engages with the horizontal groove 382r. For example, in FIG. 58 , the large opening is such that a blank is formed on the left side in the direction of the initial character "1" of the numerical value indicating the height of the drain socket 360 from the floor FL. Therefore, even when the position of the window portion 388 moves counterclockwise with the counterclockwise rotation of the main body member 371 during height adjustment, all digits of the numerical value representing the height of the drain socket 360 are aligned with the card. When the engagement is released, the protruding engaging piece 389p located in the vertical groove 382q is exposed through the window portion 388 together. Therefore, even during the adjustment of the height of the drain socket 360 from the floor FL, it is possible to confirm to which position the main body member 371 has moved by referring to the numerical value.

The situation of the drain socket 360 when the height of the drain socket 360 from the ground FL is adjusted to 200 mm is shown in FIG. 59 . Since the protruding engaging piece 389p and the window portion 388 are formed on the main body member 371, as the main body member 371 moves up and down, the protruding engaging piece 389p and the window portion 388 also move up and down. Therefore, as shown in FIG. 59, when the height of the drain socket 360 from the floor FL is 200 mm, the protruding engaging piece 389p that moves upward together with the window portion 388 is engaged in the uppermost horizontal groove 382r, The protruding engaging piece 389p disposed at a position corresponding to “the scale indicating a height of 200 mm” is exposed through the window portion 388 . In this way, the height of the drain socket 360 from the ground FL can be represented by the position of the protruding engaging piece 389p on the front of the drain socket 360 .

After the height of the drain socket 360 from the ground FL conforms to the height from the ground FL to the end of the descending road 333 according to the above essentials, the sealing member (not shown) for preventing water leakage is packed into the descending road fitting part 371a, and the The terminal end of the descending passage 333 of the flush toilet 310 is inserted into the descending passage fitting portion 371a. This completes the attachment of the drain socket 360 to the descending path 333 and the drain pipe 390 .

In this way, if the drain socket 360 is used, the total length of the drain socket 360 can be changed by adjusting the height of the drain socket 360 from the floor FL. It should be noted that the total length of the drain socket refers to the distance from the portion of the drain socket 360 located most on the side of the descending path 333 to the portion located most on the side of the drain pipe 390 . Referring to FIG. 54 , it means the distance 11 from the top of the descending path fitting portion 371a to the bottom surface of the base member 380 that is in contact with the floor FL.

FIG. 60 shows a cross-sectional view when the drain socket 360 adjusted to a height of 200 mm from the floor FL is connected to another flush toilet 510 . This flush toilet 510 has a drainage path composed of a connecting path, an ascending path, and a descending path 533 like the aforementioned flushing toilet 310 . On the other hand, the height from the floor FL to the end of the descending path 533 is different from the flush toilet 310, and takes a value of about 200 mm.

In the state shown in FIG. 60, the four engaging pieces 389a, 389p at the front end of the second annular convex portion 368 are engaged with the uppermost horizontal grooves 382c, 382r. Thereby, the main body member 371 is combined with the base member 380 . The main body member 371 clamps the drain pipe 390 by the reinforcing rib 366 bonded to the lowermost part of the second annular recess 362 , and is connected to the drain pipe 390 . In this way, even when the height of the drain socket 360 is adjusted and the overall length of the drain socket 360 is changed, the descending path 533 and the drain pipe 390 can be satisfactorily connected via the drain socket 360 .

Comparing the positional relationship between the main body member 371 and the base member 380 in FIG. 60 with that shown in FIG. 54, the positional relationship between the two has been changed to be far from each other. Specifically, the distance from the floor surface FL to the installation surface 371b of the main body member 371 is changed from a value of 130 mm to a value of 200 mm. As a result, the distance 12 from the top of the descending path fitting portion 371a to the bottom surface of the base member 380 is also 70 mm longer than the distance 11 shown in FIG. 54 .

In the ninth embodiment described above, since the drain socket 360 is divided into a plurality of members such as the main body member 371 and the base member 380, which can be separated along the direction in which the main pipe 373 extends, it is possible to combine the members. The channel of the accumulated water RW or the flushing water takes various forms. In addition, since the total length of the drain socket 360 can be freely changed, the flush toilet 310 and the drain pipe 390 can be connected in various forms, and the drain socket 360 can be universalized.

In the ninth embodiment, such a change in the overall length of the drain socket 360 is realized by changing the height of the drain socket 360 from the floor FL. Therefore, toilets having different heights from the bottom surface FL to the end of the descending path 333 can be connected to the same drain socket 360, and the workability is further improved.

In addition, in the drain socket 360 of the ninth embodiment, the height value of the drain socket 360 from the floor surface FL to the installation surface 371b during height adjustment is recognizably displayed on the side surface of the main body member 371 . Therefore, it is possible to adjust the height of the drain socket 360 while checking the degree of height change, and the workability accompanying the adjustment is further improved. For example, if the scale of the drain socket 360 is made to match the design dimension of the flush toilet 310 indicating the height from the descending path to the floor FL, a good connection state can be ensured. Therefore, at the construction site, it is not necessary to measure the size from the ground FL to the installation surface 371b or the size to the end of the descending path 333 one by one, and adjust the size of the drain socket 360 to match the size of the flush toilet 310. Homework just got smoother.

In the ninth embodiment, the height of the drain socket 360 from the floor FL to the installation surface 371b is represented by the position of the protruding engaging piece 389p. Therefore, the height value can be displayed without adding a special mechanism for display.

Furthermore, the clamping of the drain pipe 390 by the reinforcing rib 366 described in the ninth embodiment is an example of the method for connecting the drain pipe 390 to the drain socket 360, and other methods can also be used to connect the drain pipe 390 to the drain socket. Socket 360 on. For example, an elastic body other than rubber may be used as the rib 366 . In addition, the same material may be used for both the rib 366 and the main body of the drain socket 360 and formed integrally with the second annular recess 362 . In addition, in the case of a structure in which the water passing through the drain socket 360 does not leak to the outside of the drain pipe 390, the fitting or bonding of the drain pipe 390 and the drain socket 360 may not be performed, and the second annular recess 362 may be inserted only. Just in.

In addition, although in the ninth embodiment, the drain pipe 390 is connected to the second annular recess 362 of the main body member 371 of the drain socket 360, it is also possible to adopt such a configuration that the base member 380 is formed with a The second annular recess 362 has the same structure and connects the drain pipe 390 to the base member 380 of the drain socket 360 .

In addition, the engagement structure of the four engaging pieces 389a, 389p of the main body member 371 and the respective engaging portions 382a, 382p of the base member 380 in the ninth embodiment is merely to change the structure of the main body member 371 and the base member 380. As an example of the configuration for the positional relationship, the positional relationship between the main body member 371 and the base member 380 may be changed by other configurations. For example, it is also conceivable to make a hole in the main body member 371, to make a plurality of holes in the height direction of the base member 380, and to make the holes in the main body member 371 and the base member 380 After the holes are aligned, put the pins through the holes.

Although in the ninth embodiment, the base member 380 is bonded to the ground FL and fixed with bolts 385, the base member 380 does not necessarily have to be fixed on the ground FL, and only the base member 380 may be placed on the ground. on FL. In this case, although the height adjustment of the drain socket 360 can be performed after the base member 380 is placed on the ground FL as described above, if it is performed before the base member 380 is placed on the ground FL, the work will be difficult. Efficiency gets better. In other words, it is sufficient to assemble the base member 380 and the main body member 371 in advance, adjust the drain socket 360 to a desired height, and then place the base member 380 combined with the main body member 371 on the floor FL.

Next, a tenth embodiment of the present invention will be described. Fig. 61 is an explanatory diagram showing a longitudinal section when a flush toilet 810 and a drainpipe 8390 are connected by using a drain socket 8360 according to a tenth embodiment of the present invention. The flush toilet 810 and the drain socket 8360 shown in FIG. 61 have almost the same parts as the flush toilet 310 and the drain socket 360 described above. In FIG. 61, the same numerals as those in FIG. 54 are used to denote the last three digits of these common parts.

The drain socket 8360 has the same base member 8380 and main body member 8371 as those of the ninth embodiment. Therefore, the height from the floor surface FL to the installation surface 8371b of the main body member 8371 is adjustable.

The drain socket 8360 of the tenth embodiment is composed of the base member 8380, the main body member 8371, and the so-called drainpipe inner socket member 372 attached to the main body member 8371. The base member 8380 corresponds to the first member in the claims, and the main body member 8371 corresponds to the first member or the first flow path forming member in the claims. The drainpipe socket member 372 corresponds to the second flow path forming member in the claims.

Below the descending passage fitting portion 371a, a hollow and cylindrical main pipe passage 8373 is formed. This main line 8373 serves as a flow path for accumulated water, flushing water, and dirt flowing in from the descending path 833 . The main pipe 8373 is provided with the same two types of throttling parts as the main pipe 373 of the ninth embodiment.

As shown in FIG. 61 , the drainpipe inner socket member 372 is inserted into the first annular recess 8364 formed around the outside of the main pipe 8373 . This drainpipe inner socket member 372 is constituted by a combination of two members, namely a substantially cylindrical first cylindrical portion 372b and a cylindrical second cylindrical portion 372c. Specifically, the upper end of the second cylindrical portion 372c is bonded to the distal end of the first cylindrical portion 372b, whereby one drainpipe inner socket member 372 is formed.

This drainpipe inner socket member 372 is bonded to a desired position on the outer peripheral wall of the first annular recess 8364 . Through this bonding, the drainpipe inner socket member 372 and the main body member 8371 are integrated. By bonding the socket member 372 in the drainpipe, the first cylindrical portion 372b serves as a flow path connected to the main line 8373 to form an expansion line 375 whose line diameter is larger than that of the main line 8373 . In addition, the second cylindrical portion 372c forms the same-diameter pipe 376 having substantially the same diameter as the main pipe 8373 as a flow path connected to the expansion pipe 375 . In this way, the drainpipe inner socket member 372 extends the main line 8373 formed on the main body member 8371 as a flow path for the accumulated water RW, flushing water, and waste to the further downstream side. As shown in FIG. 61 , the flow paths of accumulated water RW, flushing water, and waste are extended to a position below the floor FL in the drain pipe 8390 by the socket member 372 in the drain pipe.

The first cylindrical portion 372b is equipped with a non-restricted portion 372p as a portion that maintains almost the same cross-sectional area as the beginning end of the first cylindrical portion 372b, and a non-restricted portion 372p that extends the cross-sectional area of the end of the non-restricted portion 372p toward the first cylindrical portion. The first throttle portion 372q of the portion where the terminal end direction of the portion 372 gradually decreases. In addition, the terminal end of the first cylindrical portion 372 protrudes horizontally toward the center of the expansion pipe 375, and then extends vertically downward, and the cross-sectional area of the first cylindrical portion 372b is also reduced at the terminal end of the first cylindrical portion 372b. . Hereinafter, the end portion of the first cylindrical portion 372b formed in this way is referred to as a second throttle portion 372r.

If the drain socket 8360 having the above structure is used, the total length of the drain socket 8360 can be changed by changing the mounting position of the drain pipe inner socket member 372 to the main body member 8371. Furthermore, the total length of the drain socket is the distance 13 from the top of the descending passage fitting portion 8371a to the end of the second cylindrical portion 372c of the drainpipe inner socket member 372 as shown in FIG. 61 .

FIG. 62 shows the situation when the attachment position of the drainpipe inner socket member 372 to the main body member 8371 is changed. As shown in FIG. 62 , the first cylindrical portion 372b of the drainpipe inner socket member 372 is bonded to the lower side of the outer peripheral wall of the first annular recess 8364 than in the case of FIG. 61 . Therefore, the distance 14 from the top of the descending passage fitting portion 8371a to the end of the second cylindrical portion 372c of the drainpipe inner socket member 372 is longer than the distance 13 shown in FIG. 61 .

By bonding the drainpipe inner socket member 372 to the lower side, the second cylindrical portion 372c of the drainpipe inner socket member 372 enters into a deep position in the drainpipe 8390 . Therefore, the first throttle portion 372q and the second throttle portion 372r are arranged at lower positions with respect to the floor surface FL. In addition, the lengths of the expansion line 375 and the same-diameter line 376 which are flow paths of the extension main line 8373 become longer.

In the tenth embodiment described above, the drain socket 360 is divided into a plurality of members such as the main body member 8371, the base member 8380, and the drain pipe inner socket member 372, which can be separated along the direction in which the main pipe 8373 extends. , Therefore, various configurations can be adopted for the reservoir water RW or the flow path of the flushing water by combining components. In addition, the total length of the drain socket 8360 can be freely changed by the drain pipe inner socket member 8360 of the tenth embodiment. Therefore, the flush toilet 810 and the drain pipe 8390 can be connected in various forms, and the common use of the drain socket 8360 can be achieved.

In the drain socket 8360 of the tenth embodiment, the total length of the drain socket can be changed by changing the position where the socket member 372 is attached to the main body member 8371 in the drain pipe. Therefore, the length of the flow path of the drain socket 8360 can be changed to a desired length. In particular, in the tenth embodiment, the drain pipe inner socket member 372 is formed separately from the main body member 8371, and only by changing the bonding position of the drain pipe inner socket member 372 to the first annular recess 8254, the The length of the flow path can be changed to a desired length, and the change of the flow path length can be easily performed.

In addition, since the drainpipe inner socket member 372 is constituted by a combination of a plurality of members such as the first cylindrical portion 372b and the second cylindrical portion 372c, the work involved in changing the flow path length can be simplified. For example, only by bonding both the first cylindrical portion 372b and the second cylindrical portion 372c to the first annular recess 8364, only the first cylindrical portion 372b, and both the first cylindrical portion 372b and the second cylindrical portion 372c Choose one of these three solutions without bonding, and you can achieve the desired flow path length.

In addition, the drainpipe inner socket member 372 is provided with two throttle portions, namely, a first throttle portion 372q and a second throttle portion 372r. Therefore, the position of the throttle can be freely determined in consideration of the type of toilet and the state of the drainpipe 8390 .

For example, in the case where the above-mentioned drain socket 8360 is used for a siphon toilet with a small amount of flushing water, the socket member 372 in the drain pipe is taken as shown in FIG. status) is fine. In this way, the part where the water stagnates in the expansion pipe 375 becomes downward, and the water head difference between the stagnant part and the vicinity of the weir increases. Therefore, the suction force of stagnant water or flushing water generated by the siphon action can be more effectively utilized to make the suction force stronger.

In addition, in the above occasion, if the installation place of the flush toilet 810 is upstairs, etc., the height of the drainage pipe 8390 erected from the horizontal piping state (that is, the depth from the upper end of the drainage pipe 8390 to the inner bottom surface) is low. In this case, only the first cylindrical portion 372b of the drainpipe inner socket member 372 may be bonded, or the first cylindrical portion 372b may be bonded above the first annular concave portion 8364. In this way, the part where the water stagnates in the expansion pipe 375 is taken as the lower part, so that interference with the drain pipe 8390 can be avoided. Therefore, the flushing performance of the toilet can be improved regardless of the upright state of the drainpipe 8390 .

In addition, when the above-mentioned drain socket 8360 is used for a non-siphon type toilet, since the necessity of causing water to stagnate in the drain socket 8360 is low, the drain pipe inner socket member 372 is not bonded to the first annular recess 8364. on it. Thus, the drain socket 8360 common to both the non-siphonic toilet and the siphonic toilet can be provided.

In addition, if the drain socket 8360 of the tenth embodiment is used, both the height of the drain socket 8360 from the floor FL and the flow path length of the drain socket 8360 can be changed. Therefore, even when the type of the installed toilet or the state of the installed sewage pipe differs from installation site to installation site, a certain level of cleaning performance can be ensured.

For example, when the above-mentioned drain socket 8360 is used for two types of siphon type toilets having almost the same amount of flushing water but different heights from the floor FL to the end of the drainage path, the two types of siphon type toilets can be provided with almost the same cleaning performance. . Specifically, it is sufficient to adjust the height of the drain socket 8360 from the ground FL, and to make the lower end of the drain pipe inner socket member 372 the same position as both sides, and to bond the drain pipe inner socket member 372 to the first annular recess 8364. up. In this way, both toilets have the same amount of flushing water and the stagnant portion of water in the socket, so that equal cleaning performance can be obtained.

Next, an eleventh embodiment of the present invention will be described. Fig. 63 is an explanatory view showing a longitudinal section when a flush toilet 1310 and a drainpipe 1390 are connected using a drain socket 1360 according to an eleventh embodiment of the present invention. The flush toilet 1310 and the drain socket 1360 shown in FIG. 63 have almost common parts with the flush toilet 310 and the drain sockets 360 and 8360 described above. In FIG. 60 , the same numerals as those in FIGS. 53 , 54 , and 61 are used to denote the last three digits of these common parts.

The drain socket 1360 of the eleventh embodiment is different from the ninth embodiment in that the base member 380 and the main body member 371 are not separated. Therefore, the drain socket 1360 is composed of two members, the main body member 1371 and the drain pipe inner socket member 1372 mounted on the main body member 1371 .

As shown in FIG. 63 , a main pipe 1373 is formed on the main body member 1371 as a flow path of the accumulated water RW, flushing water, and dirt. This main body member 1371 corresponds to the first flow path forming member described in the claims. In addition, the drainpipe inner socket member 1372 is bonded to the main body member 1371 to extend the main line 1373 to a position below the floor FL in the drainpipe 1390 on the further downstream side. This drain pipe inner socket member 1372 corresponds to the second flow path forming member mentioned in .

Like the tenth embodiment, the drainpipe inner socket member 1372 is composed of a combination of two types of members: a substantially cylindrical first tube portion 1372b and a cylindrical second tube portion 1372c. The upper end of 1372c is bonded to the end of the first cylindrical portion 1372b to form a drainpipe inner socket member 1372 .

As shown in FIG. 63 , an expansion line 1375 having a diameter larger than that of the main line 1273 is formed as a flow path connected to the main line 1373 near the first cylindrical portion 1372 b. In addition, near the second cylindrical portion 1372c, as a flow path connected to the expansion line 1375, a same-diameter line 1376 having almost the same diameter as the main line 1373 is formed. In addition, in the drain pipe inner socket member 1372, a non-restricted portion 1372p, a first restricted portion 1372q, and a second restricted portion 1372r are formed in the same manner as in the tenth embodiment.

The method of attaching the drainpipe inner socket member 1372 to the main body member 1371 is different from the tenth embodiment in the following manner. That is, an annular protrusion 1379 is formed outside the main pipe 1373 of the main body member 1371 , and a flange portion 1379 a is formed integrally with the annular protrusion 1379 on the peripheral wall inside this annular protrusion 1379 . The first cylindrical portion 1372b of the drainpipe inner socket member 1372 is bonded to this flange portion 1379a. Therefore, the total length of the drain socket is the distance 15 from the top of the descending passage fitting portion 1371a to the end of the second cylindrical portion 1372c of the drainpipe inner socket member 1372 as shown in FIG. 63 .

A drain pipe 1390 erected from the floor FL is inserted into the flange portion 1379a to which the drain pipe inner socket member 1372 is bonded. The drain pipe 1390 is bonded to the inner peripheral wall of the annular protrusion 1379 . Through this bonding, the drain socket 1360 and the drain pipe 1390 are connected together.

In addition, a mark indicating a position where the first cylindrical portion 1372 is cut is engraved on the first cylindrical portion 1372b of the drain pipe inner socket member 1372 . This situation is shown in Figure 64. FIG. 64 is an explanatory diagram showing the appearance of the first cylindrical portion 1372b. As shown in FIG. 64 , three scale lines are engraved at a pitch of 20 mm along the height direction on the outer peripheral surface of the first cylindrical portion 1372 b.

In the vicinity of each of these scale lines, a numerical value representing the length of the first cylindrical portion 1372b extending below the floor surface FL when the first cylindrical portion 1372b is adhered to the flange portion 1379a is engraved. Specifically, as shown in FIG. 64 , numerical values from 40 mm to 100 mm are shown in units of 20 mm. For example, when the first cylindrical portion 1372b is bonded to the flange portion 1379a without cutting the first cylindrical portion 1372b, the terminal end 1372g of the first cylindrical portion 1372b is arranged at a position 100 mm below the floor surface FL. In addition, each numerical value of 40 mm, 60 mm, and 80 mm indicates the length of the first cylindrical portion 1372b extending downward on the floor surface FL when the first cylindrical portion 1372b is cut at the position of the scale line on the upper side of each numerical value. For example, when bonding the first cylindrical portion 1372b cut at the position of the 60 mm scale line to the flange portion 1379a, the terminal end 1372g of the first cylindrical portion 1372b is arranged at a position 60 mm below the floor surface FL. Of course, as such a numerical value, the lengths of the first cylindrical portion 1372b and the second cylindrical portion 1372c extending below the floor surface FL may be expressed.

Furthermore, since these numerical values are displayed on the side surface of the side used as the first cylindrical portion 1372b when cutting at each scale line, even when the first cylindrical portion 1372b is bonded after cutting, the first cylindrical portion 1372b can be confirmed. The length of portion 1372b. In addition, in FIG. 63 already described, the 1st cylindrical part 1372b of the uncut state is connected.

This first cylindrical portion 1372b is cut off at the 60 mm scale line, bonded to the second cylindrical portion 1372c, and the drainpipe inner socket member 1372 formed by this bonding is bonded to the flange portion 1379a. shown in Figure 65. As shown in FIG. 65, by bonding the cut first cylindrical portion 1372b, the distance 16 from the top of the descending passage fitting portion 1371a to the end of the second cylindrical portion 1372c of the drainpipe inner socket member 1372 becomes smaller than that in FIG. The distance 15 shown is shorter. Moreover, the drainpipe inner socket member 1372 which adds the length of the 2nd cylindrical part 1372c to 60 mm which is the length of the 1st cylindrical part 1372b extends below the floor FL.

In the drain socket 1360 of the eleventh embodiment described above, the length of the drain pipe inner socket member 1372 protruding below the floor FL can be changed by cutting the first cylindrical portion 1372b. Therefore, the flow path of the drain socket 1360 can be changed to a free length. In addition, since the cutting position of the first cylindrical portion 1372b is indicated by the graduation line, the cutting operation becomes smooth. Furthermore, since a numerical value representing the length of the first cylindrical portion 1372b extending below the floor FL when cut at the position of each scale line is displayed near the scale lines, it is not necessary to be in the same position as the drain pipe 1390 erected from the ground FL. The interior of the drain tube 1390 interferingly determines the length of the drain tube inner socket member 1372 .

A modified example of the above-mentioned first cylindrical portion 1372b is shown in FIG. 66 . In the first cylindrical portion 2372b shown in FIG. 66, the non-restricted portion 1372p is not formed as in the eleventh embodiment, but the first section that gradually reduces the cross-sectional area of the beginning end of the first cylindrical portion 1372b toward the terminal end is formed. Flow section 2372q.

In addition, on the outer peripheral surface of the first cylindrical portion 2372b, three scale marks are engraved along the height direction as marks indicating the position where the first cylindrical portion 2372b is cut. Numerical values indicating the inner diameter of the first cylindrical portion 2372b at the cutting position of each scale line are engraved on the upper side of each scale line. Specifically, as shown in FIG. 66 , numerical values such as 40 mm, 45 mm, and 50 mm are shown. Furthermore, since these numerical values are displayed on the side surface of the side used as the first cylindrical portion 2372b when cutting at each scale line, it is possible to confirm the first cylindrical portion 2372b even when the first cylindrical portion 2372b is bonded after cutting. The inner diameter of the terminal.

If this first cylindrical portion 2372b is cut off at an arbitrary scale line and fitted to the flange portion 1379a shown in FIG. 63, the degree of throttling in the first cylindrical portion 2372b can be adjusted. For example, when cutting at a position with an inner diameter of 50 mm, since the first cylindrical portion 2372b is shortened, the stagnant state of water RW or flush water passing through the first cylindrical portion 2372b is weakened. In this way, if the first cylindrical portion 2372b is used, the stagnation state in the drain socket 1360 can be determined according to the performance of the toilet to be attached.

Furthermore, although in the above-mentioned tenth and eleventh embodiments, the drainpipe inner socket members 372, 1372 are formed by dividing the first cylindrical portion 372b, 1372b and the second cylindrical portion 372c, 1372c into two members, it may also be formed by One member constitutes the drainpipe inner socket member 372,1372.

In addition, it is also possible to constitute the drainpipe inner socket member 372, 1372 by being divided into three or more members. For example, although in the tenth embodiment, the flange portion 1379a is integrally formed with the annular convex portion 1379, it is conceivable to consider such a configuration that the flange portion 1379a is formed separately from the annular convex portion 1379. Members with the same shape as 1379a, the combination of the flange part 1379a, the first cylindrical part 1372b and the second cylindrical part 1372c is installed on the annular convex part 1379 as the inner socket member 1372 of the drain pipe. In this way, the fitting position of the flange portion 1370a to the annular protrusion 1379 can be freely adjusted. For example, if the installation position of the flange portion 1370a to the annular convex portion 1379 is determined according to the height of the drainage pipe 1390 erected from the ground FL, the drainage pipe 1390 is compactly accommodated by the surrounding wall of the inner side of the annular convex portion 1379 and the flange portion 1379a. within the enclosed space. Therefore, even if the standing height of the drain pipe 1390 differs depending on the installation site, the drain socket 1360 can be attached without cutting the drain pipe 1390 according to the drain socket 1360 .

Although in the above-mentioned tenth and eleventh embodiments, as the installation method of the drainpipe inner socket member 372, 1372 to the main body member 371, 1371, a method such as bonding is adopted, but such a structure may also be adopted, that is, by fitting The position of the socket member 372 in the drainpipe can be changed by means other than bonding such as snapping and snapping. For example, a configuration in which the drainpipe inner socket member 372 is slidably fitted to the peripheral wall of the first annular recess 364 may be considered.

In addition, the degree of throttling provided in the main line 372, 1373 or the expansion line 375, 1375 can be arbitrarily determined according to the shape of the flush water flow path and the like. In addition, it is also possible to adopt a configuration in which throttling is provided on the same-diameter pipes 376 and 1376 . Furthermore, in the above-mentioned embodiment, the center of the main pipe 373, 1373 and the center of the expansion pipe 375, 1375 may be eccentrically configured.

In addition, although in the above-mentioned embodiment, as the numerical value engraved on the side surface of the drain pipe inner socket member 1372, it is shown that "when cut at each scale line, the drain pipe inner socket member 1372 extending below the floor FL becomes The value of "the length of" or the value of "the inner diameter of the drainpipe inner socket member 1372 at the cutting position", but as this value, it is preferable to show the value based on the difference in the construction site conditions or the difference in the type of toilet installed. value or information.

For example, according to investigations, the distance from the ground FL where the toilet is installed to the drainpipe of the horizontal piping under the ground FL is about 800mm when it is installed on the first floor of a residence, and about 800mm when it is installed on the second floor of a residence. 100mm～200mm. Therefore, if these values are written on the side surface of the drain pipe inner socket member 1372 as a numerical value representing “the length of the drain pipe inner socket member 1372 extending below the floor FL when cut at each scale line, the toilet The construction personnel can immediately judge the appropriate cut-off position according to the installation floor of the toilet, and there is no doubt about which position to cut off among the displayed marks. As a result, installation of the drain socket can be performed well and smoothly.

In addition, in recent years, the amount of flushing water differs greatly depending on the type or product number of the same siphon toilet. Therefore, instead of the numerical values representing "the length of the drainpipe inner bellows member 1372 extending below the floor FL when cut at each scale line" or "the inner diameter of the drainpipe inner bellows member 1372 at the cutting position", the toilet If the product number of the toilet is marked next to each scale line, in addition to the construction personnel of the toilet can immediately judge the appropriate cut-off position according to the product number of the installed toilet, it can ensure that the difference in the flushing water of each toilet is considered. suitable retention status.

In addition, if the above-mentioned drainpipe inner socket members 372, 1372 are delivered together with the flush toilet, it can reliably prevent construction delays caused by the lack of drainpipe inner socket members 372, 1372 or the construction of the drainpipe inner socket members at the construction site. 372, the loss of 1372, etc. In addition, when only the drain pipe inner socket member 372, 1372 is provided as a single product, and the state of the drain pipe 390 or the type of the flush toilet 310 cannot be changed, it is also preferable in that subsequent disposal is possible.

The ninth to eleventh embodiments described above can also be modified as follows.

For example, in the drain sockets 360, 1360 of the above-mentioned embodiments, the terminal ends of the descending passages 333, 1333 are received by the installation surface 371b of the descending passage fitting portion 371a, but the terminal ends of the descending passages 333, 1333 and The installation surfaces 371 do not need to be in contact, and it is sufficient that the terminal ends of the descending passages 333 and 1333 are within the height range of the descending passage fitting portion 371a. Since the load of the flush toilets 310 and 1310 is received by the floor FL, the installation surface 371b does not receive the load of the flush toilets 310 and 1310.

In addition, the drain sockets 360, 1360 of the above embodiments can also be applied to occasions where the drain pipes 390, 1390 are lead pipes. In this case, it is only necessary to separately prepare a transition joint that can be connected to the lead pipe, and connect the drain pipes 390, 1390 and the drain sockets 360, 1360 through this transition joint.

In the above-mentioned embodiment, the case where the drain pipe 390 is erected from the floor FL has been described as an example, but the present invention can also be applied to wall drainage in which the drain pipe 390 protrudes from the wall surface of the installation place of the flush toilet 310. occasions. In general, flush toilets are equipped with an S trap type in which the terminal of the drainage channel faces the floor and a P trap type in which the terminal of the drainage channel faces the wall, depending on the construction conditions of the building. Two varieties. Even in a P-trap type toilet, the distance from the end of the drainage channel to the wall surface may vary depending on the type of toilet. In addition, in the case of wall drainage, the distance that the drain pipe protrudes from the standpipe in the wall differs depending on the installation site, as in the case of floor drainage. Therefore, if the connecting member connecting the drainpipe protruding from the wall and the terminal of the drainage path of the P trap type toilet is configured so that the overall length of the connecting member is variable, the connecting member can be universalized. , The constructability as a whole of the bathroom is also improved.

In addition, although the siphon jet type toilet was described as an example in the above embodiment, the present invention can also be applied to other types of toilets. For example, of course, it can be applied to a siphon type toilet that does not cause a siphon effect by spraying flush water from jet holes, or a wash-off type toilet that pushes dirt or stagnant water by the force of flush water without using a siphon effect. When the drainage channel of the wash-down toilet is curved from top to bottom, the drainage channel becomes nearly full when the toilet is flushed, and a phenomenon similar to a siphon effect may occur. In this case, if the drain sockets 8360, 1360 of this embodiment are installed, the stagnation position of the accumulated water RW or flushing water can be adjusted arbitrarily by changing the installation position of the socket members 8272, 1372 in the drain pipe, thereby improving The attraction of the accumulated water RW or flushing water toward the direction of the drain pipes 8390 and 1390 can further improve the washing ability.

In addition, although the above embodiment has been described as an example where the present invention is applied to a flush toilet such as a siphon jet flush toilet, the present invention can also be grasped as a combination of the above toilet and other devices or components. For example, it is possible to consider a sanitary washing device combined with a functional toilet seat that realizes various functions such as local washing or warm air, a toilet suite device combined with a storage box or sanitary ware, and a wall piece, floor piece, and ceiling as a toilet structure. A complete set of toilet installations, etc.

Next, the twelfth to fourteenth examples will be described.

Fig. 67 is an explanatory view showing a longitudinal section of a siphon jet flush toilet 410 as a twelfth embodiment of the present invention. This siphon jet type water flush toilet 410 causes a siphon effect by jetting out water from a jet ejection hole 422 to be described later along with water washing.

As shown in FIG. 67, a flush toilet 410 is provided with a bedpan portion 420 for receiving dirt. The peripheral wall of the toilet bowl 420 is composed of a water-covered surface 423 that contacts the reservoir water RW even when the flush toilet 410 is not flushing, and an exposed surface 424 that does not contact the reservoir water RW when the flush toilet 410 is not flushing.

In the recess 426 at the bottom of the bedpan part 420, there is a jet ejection hole 422 substantially facing the suction port of the siphon trap line. This jet outlet hole 422 is connected to a jet water supply hole 445 serving as a flush water inlet leading to this hole via a jet water supply channel 446 curved and formed around the toilet bowl 420 inside the toilet. Because of the positional relationship between the spray hole and the suction port of the water trap, the flushing water sprayed from the jet spray hole 422 enters the water trap after the suction port 425 without energy loss. Thereby, it is possible to seek the full water of the pipeline in the early stage and induce the siphon effect in the early stage.

A flush water tank WT is provided behind the flush toilet 410 in order to supply flush water to the toilet bowl 420 when the toilet is flushed. The flush toilet 410 is provided with a flush water supply hole 440 through which tank flush water flows through the water supply pipe SL, and a flush water supply channel 441 as a flow path of the flush water is provided therebelow. This flush water supply channel 441 forms a stagnation portion 441a as a space partition between the jet flow channel 446 for spraying flush water to the toilet bowl and the lower end of the drain pipe of the flush tank WT. Then, flushing water discharged from the drain pipe flows into the stagnation portion 441 a during washing, and the inflowing flushing water is sprayed from the jet outlet hole 442 through the jet water supply hole 445 and the jet water supply path 446 . In addition, after the stagnation portion 441a becomes full, the flush water in the stagnation portion flows out to the edge water supply channel 443 through the branch hole 442 above the stagnation portion, and is sprayed from the edge spray hole 444 formed at the lower end of the edge portion 421 .

Next, a discharge mechanism including a siphon and a water trap will be described. As shown in the figure, the siphon trap is directed from the suction port 425 opening in the recess 426 as a dirt accumulation place to a connecting path 431 bent obliquely upward, extending along the curved direction of this connecting path 431 and then facing the horizontal direction. The curved ascending passage 432 is constituted by a descending passage 433 that is bent downward from the lateral direction as a first descending conduit portion.

The descending passage 433 has, at its terminal portion, an expanded portion 433a in which the pipe diameter is expanded and a terminal narrowing portion 433b in which the opening area is narrower than this expanded portion. As a result, the descending passage 433 temporarily stagnates the passing flush water by the expansion portion 433a and the end throttle portion 433b, so that the descending passage 433 itself also induces a siphon effect. The end of this descending path 433 is connected to a drain pipe 490 erected from the toilet floor FL at the toilet installation portion via a resin-made drain socket 470 as a second descending conduit.

These flow paths are formed integrally with the flush toilet 410 which is earthenware by molding the flow path shape into a plaster mold or a resin mold, but the flow paths may also be formed by members separate from the flush toilet 410 . For example, it is also possible to adopt a configuration in which all or part of these flow paths are formed by other members such as resin and connected to the suction port 425 .

The drain socket 470 includes a socket main body 471 located on the floor FL of the bathroom and fixed to the floor of the bathroom by bolts, etc., and a socket pipeline that guides the flushing water of the above-mentioned siphon trap to the drain pipe 490. The pipeline of 472 forms body 473. The line forming body 473 has a helical recess 474 which surrounds the socket line 472 in a helical manner. In this case, the diameter of the bellows pipe 472 is almost the same as that of the above-mentioned narrow-end portion 433b.

The socket body part 471 has a descending passage fitting part 471a into which the end of the descending passage 433 is inserted, and a drainpipe fitting part 475 into which the upper end of the drainpipe 490 is inserted from below at its upper end. The drain pipe fitting portion 475 positions the drain socket 470 relative to the drain pipe 490 through cooperation of the drain pipe 490 . Also, since the end of the duct forming body 473 is located below the upper end of the drain pipe 490 , the flushing water passing through the duct forming body 473 hardly leaks from the upper end of the drain pipe 490 .

Although the socket body part 471 and the pipe channel forming body 473 of the above-mentioned drain socket 470 are all resin molded products, they are separated from the flush toilet 410, specifically, the descending path 433, but they may be separated from the descending path 433 ( That is, the siphon trap) becomes one. When it is integrated with the descending passage 433 like this, pipes such as the socket pipe 472 are connected to the descending passage 433 with the spiral recess 474 during the manufacture of the toilet by sandwiching the end throttle 433b on the expansion part 433a. on it. In addition, the siphon trap of the flush toilet 410 can also be taken as not having a siphon inducing mechanism such as the end throttling portion 433b, and the drain socket 470 connected to it can be taken as having a siphon inducing mechanism such as the end throttling portion 433b and a bearing. Port pipeline 472 and pipeline forming body 473. When making the socket body part 471 and the piping forming body 473 into a resin molded product, in addition to using polyvinyl chloride like the drain pipe 490, ABS resin, PP (polypropylene), PE (polyethylene), or polyvinyl chloride can be used. PPS (polyphenylene sulfide), MA (acrylic acid), POM (polyacetal) and other resins.

As shown in the figure, in the flush toilet 410 before the flushing operation, the water RW accumulates in the connection path 431 , the ascending path 432 , and the bedpan portion 420 up to the height of the normal water level line WL. Reverse flow of bad smell from the discharge mechanism to the toilet bowl 420 and entry of harmful insects are prevented by this accumulated water RW.

The accumulated water RW includes water accumulated inside the bedpan part 420 up to the suction port 425 (hereinafter, this part of water will be referred to as bedpan part water or sealing water), and the water accumulated in the connection path 431 after the suction port 425 and the ascending path 432 (hereinafter this part of water is referred to as water accumulation in the flow path), and the water accumulated in the lower part of the retention portion 441a of the flush toilet 410 and the jet flow water supply channel 446 (hereinafter this part of water is referred to as jet accumulation water). As shown in FIG. 67 , in the flow path of sewage constituted by the connection path 431 , the ascending path 432 and the descending path 433 , the stagnant water in the flow path accumulates only at one point from the connecting path 431 to the ascending path 432 . In addition, "sewage" refers to water polluted by dirt such as excrement or urine, paper, or the like.

The height of the normal water level line WL depends on the height of the weir 434 which is the highest position on the lower side of the inner wall of the ascending path 432 . Therefore, as shown in Figure 67, because the bottom of the retention part 441a of the flush toilet 410, the jet flow water supply hole 445 and the jet flow water supply channel 446 are below the weir 434, so in the stationary state of the flush toilet 410, the retention part 441a In the lower part and the jet flow water supply channel 446, the accumulated water in the jet flow is accumulated to the above-mentioned water level. Furthermore, when the height of the weir 434 is lowered, the water level of the accumulated water RW is also lowered, and the amount of the water accumulated in the bedpan portion, the accumulated water in the flow path, and the accumulated water in the jet flow is also reduced.

With the drainage mechanism constituted like this, the mechanism by which sewage or dirt is discharged will be described. When the flush water is released from the flush water tank WT, the released flush water first flows into the stagnation portion 441a, and its potential energy is used as kinetic energy to make the jet stagnant water of the jet flow water supply channel 446 flow into the toilet portion stagnant water (sealing water) of the toilet portion 420. Thereby, the flushing water spraying from the jet ejection hole 422 to the above-mentioned trap starts, and then, while the flush water continues to be discharged, the discharged flush water itself continues to be ejected from the jet ejection hole 422 by the energy described above. In the initial stage of this spraying operation, the retention portion 441a is replaced by the discharged flushing water, so after the replacement, the discharged flushing water is sprayed from the edge spraying hole 444 through the branch hole 442 .

When the flush water is sprayed toward the toilet bowl 420 in this way, the water level of the ascending path 432 rises, and the curved portion from the ascending path 432 to the descending path 433 (hereinafter referred to as a curved portion) becomes full of water. Then, the flush water passes through the descending passage 433, and when it passes, the flush water temporarily stagnates at the expansion portion 433a at the end of the descending passage, and the trap line is filled with flush water to form a siphon. Then, a pressure difference is generated between the flushing water in this siphon and the accumulated water in the bedpan part 420 to generate a downward suction force. The flushing water (sewage) filled in the siphon trap (the ascending path 432 and the connecting path 431 ) and the flushing water (sewage) in the bedpan are guided to the drainpipe 490 together with the dirt by this suction force. This induces a siphon effect.

Next, the behavior of the flushing water after the siphon action is induced will be described. FIG. 68 is an explanatory view explaining the passage behavior of the flushing water in the siphon trap and the socket pipe 472 .

The flushing water flowing by the induction of the siphon action passes through the bellows line 472 in the flow that would pass through the bellows line 472 via the expansion part 433a as it is, as shown by the hollow arrow in FIG. 68( a ). At the same time, part of the flushing water enters the spiral recess 474 surrounding the socket pipe 472 and is retained. Then, the flushing water in the spiral recess 474 flows down in the spiral recess 474 as shown by the dotted line in the figure. Alternatively, the flushing water in the spiral recess 474 flows down from the opening of the recess by its own weight, and merges with the flushing water flowing through the hollow arrow in the figure.

When the predetermined amount of flush water supply from the flush water tank WT and the flush water spray from the spray hole are almost completed, and the siphon end stage is reached, the amount of flush water reaching the socket pipe line 472 via the siphon trap decreases. In this state, as shown in FIG. 68(b), the flow rate of the flushing water (hereinafter referred to as passing flushing water for convenience) to flow through the bell pipe 472 as it is is reduced. However, there is flushing water in the spiral recess 474, and since this flushing water flows helically along the spiral recess 474 or merges with the passing flushing water, it becomes supplemental flushing water with respect to the passing flushing water. Therefore, the flow rate of the entire flush water passing through the bell pipe 472 or its end increases. Therefore, since the occupancy area of the flushing water occupying the pipe cross section of the socket pipe 472 is wider than that of the existing one without the spiral recess 474, it is possible to suppress the flow from the drainpipe by the flushing water existing in a wide occupancy area. The air on the 490 side goes in. As a result, the siphon can be maintained for a long time even at the end of the siphon when the flow rate is reduced, and the suction efficiency of the accumulated water in the toilet bowl can be improved and the reliability of suction and discharge of floating waste can be improved at the end of the siphon.

In addition, the flush water replenishment from the spiral recess 474 to the above-mentioned passing flush water is performed in the spiral recess 474 of each stage. Thereby, since the replenishment to passing flush water is reliable, the siphon can be reliably maintained. Therefore, the suction efficiency and reliability of water in the bedpan portion at the end of the siphon can be improved, and the reliability of suction and discharge of floating waste can be improved.

Since the spiral recess 474 is provided directly below the throttle portion 433b of the connection path 431 where the siphon induction occurs, flushing water can be replenished near the site where the siphon action is induced. Therefore, the maintenance of the siphon is more reliable, and the reliability can be improved.

Furthermore, since a part of the passing flush water is introduced into the spiral recess 474 as replenishing flush water, no special water system for replenishing flush water is required. Accordingly, the configuration can be simplified without increasing the total amount of flush water used for toilet flushing.

Furthermore, since a spiral flow of flushing water is generated in the spiral recess 474 , this flushing water swirls around the socket pipe 472 . Therefore, since this rotation of flushing water also suppresses the entry of air from the side of the drainpipe 490, the reliability of the suction efficiency improvement at the end of the siphon and the reliability of suction and discharge of floating dirt can be further improved.

Furthermore, although the socket pipeline 472 is taken as a concave spiral recess 474 in this embodiment, it can also be taken as inserting and packing a spiral plate on the socket pipeline 472 .

Next, modifications of the above-described embodiment will be described. FIG. 69 is an explanatory diagram for explaining a drain socket 470 of a modified example. A drain socket 470 according to this modified example has annular recesses 474a recessed outward in a skirt shape at appropriate intervals on a socket pipe line 472 as shown in the figure. Furthermore, a part of the passing flush water is temporarily retained in each annular recess 474a, and the flush water is replenished by its own weight to the passing flush water. Therefore, also in this modified example, since the flushing water is merged from the respective annular recesses 474a to the passing flushing water of the socket pipe 472 as described above, the above-described effects can be achieved.

Next, other embodiments will be described. Fig. 70 is an explanatory diagram for explaining a drain socket 1470 of the thirteenth embodiment. As shown in the figure, the drain socket 1470 of this modified example has a socket body part 1471 for ground fixing, and inside it, an upstream socket pipe line 1472 and a pipe forming pipe 1472 for guiding passing flushing water to a drain pipe 490 are provided. Body 1473. Moreover, this drain socket 1470 has a stepped portion 1475 opposite to the lower end of the piping forming body 1473 forming the upstream socket piping 1472, and a storage chamber surrounding the piping forming body 1473 is provided above the stepped portion 1475. 1476. Furthermore, both the upstream socket pipe line 1472 and the downstream socket pipe line 1474 are made to have almost the same diameter as the end throttle portion 433b.

The socket body part 1471 fits the descending passage 433 on the descending passage fitting part 1471a at its upper end and is fixed on the ground, and is sealed with the drain pipe 490 by the sealing member 1477 located at the upper end of the drain pipe. Also in this one drain socket 1470 , the end of the downstream socket pipeline 1474 is located below the upper end of the drain pipe 490 to suppress the leakage of flushing water from the upper end of the drain pipe 490 . In addition, this drain socket 1470 is also formed of the above-mentioned resin, such as polyvinyl chloride resin and ABS resin, as mentioned above.

The drain socket 1470 allows the flushing water passing through the upstream socket pipeline 1472 to impact the stepped portion 1475 as shown by the arrow in the figure, and change its direction to flow into the downstream socket pipeline 1474 . Since the stepped portion 1475 is expanded at the storage chamber 1476, combined with the change of the flow direction at the stepped portion 1475, a temporary retention of flushing water is generated, which is helpful for inducing a siphon effect. Thus, in the flush toilet 410 equipped with the drain socket 1470, since the siphon action is induced at two places, the end throttle portion 433b and the stepped portion 1475 of the drain socket 1470, it is possible to effectively improve the capacity. Water attraction and improve suction efficiency. Moreover, because the siphon effect can also be induced at the drain socket 1470, the siphon effect can also be generated by installing this drain socket 1470 at the end of the siphon trap, that is, in the straight water closet 410 at the end of the line 433 induced.

Flush water in drain socket 1470 behaves as follows. The flushing water induced by the siphon action to pass through the upstream bellows line 1472 (through the flushing water) flows into the downstream bellows line 1474 as described above by the impact on the stepped portion 1475 . On the other hand, a part of the flush water flows into the storage chamber 1476 due to the siphon-induced pressure, that is, the head pressure (head difference) with respect to the surface of the accumulated water in the bedpan part 420 . Although there is air in the storage chamber 1476 at this time, since this air is compressed by the above-mentioned pressure of the flushing water, the flushing water remains in the storage chamber 1476 by its compressed amount. That is, this storage chamber 1476 functions as a kind of accumulator.

When the end of siphon occurs, the amount of flushing water flowing into the downstream socket pipe 1474 through the upstream socket pipe 1472 decreases, and the pressure of the flushing water remaining in the lower end of the storage chamber 1476 decreases. If this happens, the flushing water remaining in the storage chamber 1476 will flow out of the storage chamber 1476 by its own hydraulic pressure and its own weight, resulting in an increase in the flow rate of the flushing water passing through the downstream bell pipe 1474 . Therefore, since the occupancy area of the flushing water occupying the pipeline section of the downstream socket pipeline 1474 is wider than that of changing the direction of the flushing water only by the step portion 1475 without the storage chamber 1476, it is close to the wide occupancy area. The presence of flush water can inhibit air ingress from the side of the drain pipe 490 . As a result, the drain socket 1470 of the thirteenth embodiment can also achieve the same effects as those of the above-mentioned embodiment.

In addition, this drain socket 1470 is supplied with flushing water at the end of the upstream socket line 1472 from a surrounding holding chamber 1476 around the entire circumference of the upstream socket line 1472 . Therefore, the flow rate increase by the replenishment of flush water can be easily performed.

Although the drain socket 1470 of the thirteenth embodiment is taken as the storage chamber 1476 surrounding the upstream socket pipeline 1472 , it may be modified to be formed on one side of the upstream socket pipeline 1472 . FIG. 71 is an explanatory diagram for explaining a drain socket 1470A of this modified example. This drain socket 1470A is provided with a protrusion 178 near the end of the upstream socket pipe 1472 , and a storage chamber 1476 is provided on the side opposite to the protrusion 178 . In this drain socket 1470A, as shown by the arrow in the figure, the flushing water enters the storage chamber 1476 by impacting the protrusion 178 and changing the direction. Accordingly, flush water can be replenished from the storage chamber 1476 also in the drain socket 1470A of this modified example, as in the thirteenth embodiment described above.

Next, a fourteenth embodiment will be described. Fig. 72 is an explanatory diagram for explaining a drain socket 2470 of the fourteenth embodiment. As shown in the figure, the drain socket 2470 of this modified example has a socket main body 2471 for ground fixing, and a socket pipe line 2472 for guiding passing flush water to a drain pipe 490 is provided inside. Moreover, the drain socket 2470 has a throttling structure capable of narrowing and adjusting the pipe diameter of the socket pipe 2472 . This throttling structure is composed of a pipeline restricting member 2473 disposed opposite to the socket pipeline 2472, an actuator 2474 for advancing and retreating the pipeline restricting member into the pipeline, and an actuator control device not shown. .

The pipeline restricting member 2473 is made of elastic material rich in water resistance and durability such as rubber and elastic body, and is fixed watertightly to the pipeline wall 2475 around the socket pipeline 2472 . The actuator 2474 receives a command from its control device so that the pipeline restricting member 2473 protrudes in a curved manner into the pipeline, and draws it closer to the wall surface of the pipeline. The actuator control device determines the final stage of siphon based on the elapsed time from the start of toilet flushing, the pressure change in the socket pipe 2472, and the like, and drives and controls the actuator as follows based on the result.

If toilet flushing is started by manual operation or button operation not shown, the actuator control device sends a forward command to the actuator 2474 to drive it, as shown in the figure, so that the pipeline restricting member 2473 protrudes into the pipeline. Thereby, since the piping of the socket piping 2472 is narrowed, passage of the flushing water of the socket piping 2472 is restricted at this time. Even under such restrictions, since the siphon effect is induced by the end throttle portion 433b of the descending passage 433, and the flushing water passes through the socket pipe 2472, the suction of stagnant water and dirt can be performed without any particular hindrance. Even in the case where the duct restricting member 2473 protrudes like this, the ducts therebetween do not hinder the transfer of dirt. In addition, as shown in the figure, the protruding state of the pipeline restricting member 2473 may be taken as the origin position of the throttling structure, and in this case, the above-mentioned actuator is not required to be driven.

Now, if the actuator control device judges that the end of the siphon is approaching based on the elapsed time, the actuator control device sends a retreat command to the actuator 2474 to drive it, so that the pipeline restricting member 2472 is drawn closer to the pipeline wall surface. . As a result, since the channel of the bellows line 2472 expands from the previous state, restriction on passage of flushing water due to narrowing of the line is relieved, and flushing water passing through the bellows line 2472 downstream of the throttling structure increases. Therefore, since the occupancy area of the flush water passing through the bell pipe 2472 downstream of the throttling structure increases at the end of the siphon, it is possible to maintain the siphon as described above and improve the suction efficiency of the accumulated water in the toilet bowl. The same effects as those of the above-mentioned embodiments can be achieved.

The above-described twelfth to fourteenth embodiments may also be modified as follows.

For example, although in the above-mentioned embodiment, the low box type water tank connected to the toilet is used as the flushing water tank, it is also possible to use a water tank other than the low box type water tank, for example, to be installed on the wall of the toilet, etc. through the connection between the toilet and the flushing pipe. corner-mounted or flush-mounted tanks. In this case, the flushing water tank can be set at a high position to make a high tank.

In addition, although the case where the present invention is applied to the siphon jet flush toilet 410 or the siphon type toilet has been described as an example, it can also be understood as an invention in which the above toilet is combined with other devices or components. For example, it is possible to consider a sanitary washing device combined with a functional toilet seat that realizes various functions such as local washing or warm air, a toilet suite device combined with a storage box or sanitary ware, and a wall piece, floor piece, and ceiling as a toilet structure. A complete set of toilet installations, etc.

Next, a fifteenth embodiment will be described.

Fig. 73 is an explanatory view showing a longitudinal section of a siphon jet flush toilet 610 as a fifteenth embodiment of the present invention. FIG. 74 is an explanatory view showing the top surface of this flush toilet 610. As shown in FIG. In the flush toilet 610, water is ejected from a jet ejection hole 622 described later to cause a siphon effect in accordance with flushing. Next, each part of the flush toilet 610 will be described with reference to FIG. 73 and FIG. 74 .

The flush toilet 610 includes a toilet body 611 made of earthenware, a drain socket 670 made of resin, a flush tank, and the like. The drain socket 670 connects the drain pipe 630 of the toilet body 611 to the drain pipe P protruding from the floor FL.

The toilet body 611 is provided with a toilet bowl 620 for receiving dirt. The peripheral wall of the toilet bowl 620 is composed of a water-covered surface 623 that contacts the reservoir water RW even when the flush toilet 610 is not flushing, and an exposed surface 624 that does not contact the reservoir water RW when the flush toilet 610 is not flushing.

As shown in FIG. 74 , the jet outlet hole 622 is connected to a jet water supply hole 645 as a water supply port via a jet water supply channel 646 curvedly formed inside the toilet. As shown in FIG. 73, the jet ejection hole 622 is provided at a position almost opposite to the discharge port 625 via the recess 626, and the energy of the flushing water is transmitted to the discharge mechanism after the discharge port 625 without waste. Thus, the siphon effect can be induced early.

Inside the flush toilet 610, a water supply mechanism for supplying water to the toilet bowl 620 and a discharge mechanism for discharging waste in the toilet bowl 620 to the drain pipe P are provided.

First, the water supply mechanism will be described. At the rear of the flush toilet 610, a flush water supply hole 640 as a hole for connecting the water supply pipe SL of the flush water tank WT is provided. A flush water supply channel 641 is a flow path of flush water from the flush water tank WT. This flush water supply channel 641 is partitioned into a stagnation portion 641a as a space interposed between a jet flow channel 646 for spraying flush water to the toilet bowl 620 and the lower end of the water supply pipe of the flush tank WT. Then, the flush water supplied from the water supply pipe SL flows into this stagnation portion 641a during washing, and the inflow flush water flows out to the edge water supply path 643 through the jet water supply path 646 and the branch hole 642 described later.

That is, the water stored in the tank (flush water) energized by the free fall is supplied to the flush water supply channel 641 at one go. Therefore, the stagnation portion 641a formed in the flush water supply channel 641 divided into obliquely downward sections becomes full after the water washing starts, and part of the flush water is supplied to the edge water supply channel 643 from the branch hole 642 . The flush water supplied to the edge water supply channel 643 is discharged from a water outlet hole 644 (see FIG. 74 ) provided on the back side of the edge portion 621 .

As shown in FIG. 74, on the inner side of the edge portion 216, there are five types of large holes 644a with a diameter of 7mm, middle holes 644b with a diameter of 4mm, small holes 644c with a diameter of 3mm, and substantially rectangular long holes 644d and 44e. The outlet hole 644 of shape. Although this water outlet hole 644 is formed when the edge portion 621 is formed, the distributor with the water outlet hole can certainly also be contained in the inner side of the edge portion 621 .

The flush water supplied to the left and right edge water channels 643 is energized in the front direction of the flush toilet 610 and distributed according to the opening diameter of the outlet hole 644 or the energizing force of the flush water, and is discharged from the holes 644a to 644e. At this time, water with a large force is spouted from the long hole 644d formed on the back side of the right rear edge portion 621 at a position close to the branch hole 642 to the exposed surface 624 on the left side in front of the toilet. In addition, a large amount of flush water flowing through the edge water supply channel 643 around the right side is spouted from the elongated hole 644e formed in the front right position of the flush toilet 610 to the left rear exposed surface 624 of the flush toilet 610 . The flush water discharged from these elongated holes 644d and 644e becomes the mainstream, and a clockwise rotational force is applied to the flush water discharged from the discharge hole 644 . This rotational force is transmitted to the accumulated water RW in the toilet bowl portion 620 . As a result, the water in the toilet bowl 620 becomes a right-handed swirling flow.

Further, the flush water reaching the stagnation portion 641a enters the jet water supply hole 645 which is a hole provided on the side wall of the stagnation portion 641a. Flush water is supplied into the jet feed water channel 646 following this entry. The flush water supplied to the jet water supply channel 646 is jetted from the jet jet hole 622 . And, when the stagnation portion 641a is replaced by flush water, the flush water is guided from the branch hole 642 to the edge water supply channel 643, and the flush water is discharged from the outlet hole 644 of the edge.

Next, the discharge mechanism will be described. As shown in FIG. 73 , a drain line 630 as a flow path of water and waste is integrally formed with the toilet body 611 before the discharge port 625 formed in the depth of the recess 626 as a waste accumulation place. The drain pipe 630 forms a connection path 631 that bends obliquely upward from the outlet 525 , an ascending path 632 that extends along the bending direction of the connection path 631 and bends laterally, and a descending path 633 that bends downward from the lateral direction. The descending path 633 is connected at its end to a drainpipe P erected from the toilet floor FL at the toilet installation site via a resin drain socket 670 .

FIG. 75 is an enlarged cross-sectional view showing the vicinity of the drain socket 670 in FIG. 73 . In FIG. 75 , the drain socket 670 is integrally formed with a toilet connecting portion 671 , a connecting pipe portion 673 , a drain pipe connecting portion 674 and a socket fixing portion 678 .

That is, the toilet connecting portion 671 is connected to the drain line 630 by fitting the lower end side of the descending path 633 of the drain line 630 . A connecting pipe portion 673 is extended from the bottom of the toilet connecting portion 671 , and the connecting pipe portion 673 is positioned on the drain pipe P by being sleeved on the drain pipe P. As shown in FIG. Furthermore, a drain pipe connection portion 674 is formed on the downstream side of the toilet connection portion 671 and on the inner peripheral side of the connection pipe portion 673 . The drain pipe connection portion 674 is arranged concentrically with the connection pipe portion 673 and serves as an outflow tube portion 675 having an outflow port 675a at the lower end. The outflow tube portion 675 is inserted into a drain pipe P connected to a downpipe, thereby preventing flush water from leaking to the outside. A socket fixing portion 678 is integrally formed on the outer peripheral portion of the drain socket 670 . The socket fixing part 678 is a part for fixing the drain socket 670 to the floor FL, and is formed by a pedestal almost horizontally from the outer periphery of the lower end of the drain socket 670, and is fastened to the floor FL by unillustrated screws. Thereby, the drain socket 670 is fixed on the floor FL.

In addition, the drain socket 670 is provided with a flush water retaining mechanism 680 for inducing a siphon and a delay mechanism 690 for delaying the outflow of flush water at its upper portion. FIG. 76 is an enlarged perspective view showing the vicinity of the flush water retaining mechanism 680 by cutting the drain socket 670 . In FIG. 76, the flushing water retaining mechanism 680 is equipped with an annular protrusion 681 (protruding portion for peeling) that protrudes from the pipe wall toward the center, and its center serves as a throttling flow path 682, and its upper surface forms an obtuse-angled inclined surface. 683. The length of the annular protrusion 681 from the inner tube wall to the horizontal direction is L1. The flush water retaining mechanism 680 narrows the flow path 682 on the upstream side by narrowing the flow path 682 , and changes the direction of the flush water flowing along the inclined surface 683 to form a water film to rapidly generate a siphon.

In addition, a delay mechanism 690 is provided below the annular protrusion 681 . The delay mechanism 690 is provided with a guide protrusion 691 (convex portion for delay). The guide protrusions 691 protrude continuously and spirally, the guide groove 692 is formed in between, and the flow path 693 is formed at the center thereof. The length of the guide protrusion 691 from the inner tube wall to the horizontal direction is L2, which is shorter than the length L1 of the annular protrusion 681 . That is, since the annular protrusion 681 protrudes toward the center more than the guide protrusion 691 , the annular protrusion 681 blocks the guide protrusion 291 . Therefore, the delay mechanism 690 is configured so that the flushing water flows into the flow path 693 when the flushing water does not reach the guide protrusion 691, and on the other hand, when the flushing water flows into the guide protrusion 691, part of the flushing water is guided into the guide groove 692. Helically directed sideways to flow downwards.

In the flush toilet 610 configured in this way, a flushing process in which sewage or waste is discharged will be described. Before the water washing in the water washing process starts, as shown in FIG. 73 , the feed water RW supplied in the previous water washing is accumulated in the bedpan part 620 . The accumulated water RW includes water accumulated in the bedpan portion 620 up to the discharge port 625 (hereinafter referred to as sealing water), and water accumulated in the connection path 631 and the ascending path 632 after the discharge port 625 (hereinafter referred to as This part of the water is referred to as stagnant water in the flow path), and the water accumulated in the lower part of the retention part 641a of the flush toilet 610 and the jet flow water supply channel 646 (hereinafter, this part of water is referred to as jet stagnant water). In addition, generally, the height of the water level line WL depends on the height of the weir 34 which is the highest position on the lower side of the inner wall of the ascending path 632 . Therefore, before the flushing starts, since the lower portion of the retention portion 641a of the flush toilet 610, the jet water supply hole 645 and the jet water supply channel 646 are located below the weir 34, they are filled with flush water.

In this state, if the flushing water is supplied from the flushing water tank WT, the supplied flushing water first flows into the stagnation portion 641 a, whereby the jet accumulated water in the jet flow water supply path 646 is discharged into the drain pipe 630 through the jet flow ejection hole 422 . squirt. On the other hand, when the flush water supplied to the stagnation portion 641 a is filled to the upper position, it is sprayed out from the water outlet hole 644 through the branch hole 642 .

When the flush water is sprayed toward the toilet bowl 620 in this way, the water level of the ascending path 632 rises, and the curved portion from the ascending path 632 to the descending path 633 becomes full of water. Then, the flush water passes through the descending passage 633, and when the flush water temporarily stays in the flush water retention mechanism 680, a pressure difference is generated between this flush water and the accumulated water in the bedpan part 620 to generate a downward suction force. . The flush water filling the ascending path 632 and the connecting path 631 and the flush water in the toilet bowl 620 are guided to the drainpipe P side together with dirt by this suction force. This induces a siphon effect, and flush water (sewage) and dirt in the bedpan portion 620 are quickly discharged to the outside through the drainage passage.

Next, the flush water passing through the flush water retaining mechanism 680 approaches the delay mechanism 690 and the action of the delay mechanism 690 will be described. 77 is an explanatory diagram for explaining the time change of the amount of flushing water flowing out from the drain port in the water washing process, FIG. 78 is an explanatory diagram for explaining the situation from the initial stage to the middle stage of the water washing process, and FIG. 79 is an explanatory diagram illustrating the situation in the final stage of the water washing process. An explanatory diagram of . In the water washing process in this embodiment, the effect of the flushing water caused by the delay mechanism 690 is different in the early stage, middle stage and final stage.

In the initial stage (time t1-t2) and middle stage (time t2-t3) of the water washing process, the flush water passing through the flush water retention mechanism 680 approaches the delay mechanism 690 . The flush water at this time is throttled at the flush water retaining mechanism 680 at a fast flow rate and approaches the delay mechanism 690 due to the high flush water level in the bedpan portion 620 and the high head pressure. That is to say, as shown in Fig. 78, since the diameter of the flow path 682 of the flushing water retaining mechanism 680 is narrower than that of the flow path 693 of the delay mechanism 690, the annular protrusion 681 blocks the guide protrusion 691, so that the flushing water is almost It is not close to the guide protrusion 691 of the delay mechanism 690 . That is to say, in the initial and middle stages of the washing process, since the flow velocity of the flushing water is very fast, the delay mechanism 690 allows the flushing water to flow as it is without becoming an obstacle to drainage.

Then, the discharge volume of flush water exceeds the peak value, and at the end of the washing process (time t3 to t5), the downward flow velocity decreases because the pressure of the water head decreases rapidly as the water volume decreases. Therefore, as shown in FIG. 79 , the force in the circumferential direction is relatively greater than the force in the downward direction, and the flushing water flows downward while being spirally guided by the guide protrusion 691 of the delay mechanism 690 toward the inner pipe wall. At this time, since the flushing water flows through the spiral guide groove 692, the time is longer than the vertical drop. That is, in the final stage of the water washing process, the flow resistance caused by the delay mechanism 690 increases, and the time until flushing water is discharged is prolonged. This is shown in FIG. 77 , where the conventional flow rate indicated by a dashed-two dotted line changes to the change in flow rate indicated by a solid line. In this way, the time until the flush water is completely discharged in the final stage of water washing is extended from t4 to time t5.

Therefore, the flushing water discharged from the drain pipe 680 quickly discharges dirt in the early or middle stage of the washing process with a high flow velocity, and is delayed until the end of the washing process with a slow flow velocity. The time to be discharged is prolonged. Thereby, dirt floating in the bedpan part 620 can be reliably discharged from the bedpan part 620 even if the discharge time is slow.

Furthermore, even with the same amount of flushing water as in the past, since the peak value is only slightly suppressed, the power to discharge dirt does not decrease.

In addition, since the above-mentioned flush water retention mechanism 680 and delay mechanism 690 are formed on the drain socket 670 and formed separately from the toilet body 611, even complex shapes can be formed arbitrarily.

Furthermore, the above-described fifteenth embodiment may also be modified, for example, as follows.

(1) The flush water retaining mechanism 680 and the delay mechanism 690 may be integrally formed with a flush toilet which is earthenware by molding the shape of the flow path into a plaster mold or a resin mold.

(2) Although the delay mechanism is taken as a continuous spiral guide protrusion in the above-mentioned embodiment, it is not limited to this, and it may also be taken as a spiral with a part notched, or a protrusion protruding in multiple stages in the horizontal direction, which The shape is not particularly limited.

Industrial field of application

The flush toilet and its drainage device and the toilet having them according to the present invention can be used for the induction of an effective siphon action for draining waste from the bowl portion.

Claims (77)

1. A flush toilet comprising a bedpan portion in which flush water remains as stagnant water when it is not flushed, and a storage channel for forming new flush water passing through the bedpan portion to the outside together with the aforementioned stagnant water. A flush toilet with a water bend mechanism is characterized in that, The water trap mechanism is provided with: an ascending pipe portion which communicates with the bedpan portion and has an ascending pipe; The drain pipe part of the stagnation mechanism that induces the siphon effect when the flushing water passes through the aforementioned drain pipe temporarily stays, The drainage conduit portion has a protruding conduit portion protruding from a part of the drainage conduit below the floor where the toilet is installed, The above-mentioned stagnation mechanism is provided on the above-mentioned protruding pipeline part. 2. The flush toilet according to claim 1, wherein: The protruding duct portion is provided with the stagnation mechanism near or on an end portion of the drainage duct. 3. The flush toilet according to claim 1 or claim 2, wherein: The said drain line part has a some said stagnation means. 4. The flush toilet according to claim 3, wherein: The drainage pipe portion has at least one retention mechanism on the protruding pipe portion, At least one retention mechanism is provided on the drain line other than the protruding line portion. 5. The flush toilet according to any one of claims 1 to 4, wherein: The aforementioned stagnation mechanism is a pipe expansion portion in which the pipe diameter of the passing flush water to be stored is expanded. 6. The flush toilet according to any one of claims 1 to 4, wherein: The aforementioned stagnation mechanism is a pipeline throttling part in which the diameter of the pipeline for storing passing flushing water is reduced. 7. The flush toilet according to claim 6, wherein: The aforementioned pipeline throttling portion is formed by extending the narrowing range of the pipeline diameter along the pipeline direction. 8. The flush toilet according to any one of claims 1 to 7, wherein, The aforementioned water trap mechanism is separated from the toilet main body forming the aforementioned bedpan portion and mounted on the aforementioned toilet main body. 9. The flush toilet according to any one of claims 1 to 8, wherein, The drain pipe part is integrally provided with a drain pipe part including the protruding pipe part, and the separate drain pipe part is attached to other parts of the drain pipe to form the drain pipe. 10. The flush toilet according to claim 8 or claim 9, wherein: There is a water-tight sealing part for the pipeline on the aforementioned installation site. 11. The flush toilet according to any one of claims 1 to 10, wherein: The protruding pipe portion has its distal end located in an existing external discharge pipe already installed on the floor where the toilet is installed. 12. A drain socket connected to the aforementioned flush toilet to discharge the flushing water of the flush toilet to an external discharge pipe already installed on the floor where the toilet is installed, characterized in that, It has a connecting part connected to the end of the toilet trap pipe that is connected to the end of the toilet trap pipe that discharges the flush water remaining in the toilet bowl of the flush toilet as stagnant water when not flushing, and the new flush water passed to the toilet bowl. , connected to the connecting portion to form a pipe forming portion connected to the discharge pipe of the toilet trap pipe, The channel forming part has a stagnation mechanism that forms the discharge channel to the inside of the external discharge pipe, and induces a siphon effect by temporarily stagnating passing flush water in a portion of the discharge channel located inside the external discharge pipe. 13. The drain socket of claim 12, wherein: The above-mentioned pipeline forming part has a plurality of the above-mentioned stagnation means. 14. A drain socket as claimed in claim 12 or claim 13 wherein, The said duct forming part has the said stagnation mechanism at the terminal end of the said discharge duct, or its vicinity. 15. A drain socket as claimed in any one of claims 12 to 14 wherein, The aforesaid connection part is equipped with a mechanism positioned and fixed on the pipeline of the aforesaid toilet internal water bend, The said duct forming part is fixed to the mechanism of the said toilet installation floor in the state which positioned the said external discharge pipe. 16. A drain socket as claimed in any one of claims 12 to 15 wherein, The pipeline forming part forms the discharge pipeline eccentrically between a pipeline part of the discharge pipeline connected to the connection part and a pipeline part of the discharge pipeline in the external discharge pipe. 17. A flush toilet comprising a bedpan portion in which flushing water remains as stagnant water when not flushing, and a storage channel for forming new flushing water passing through the bedpan portion to be discharged to the outside together with the stagnant water. A flush toilet with a water bend mechanism, wherein, Equipped with a trap line formed inside the toilet so that the flush water remaining in the toilet bowl can be discharged outside together with the new flush water passing through the toilet bowl. The drain socket described in any one of claim 12 to claim 15 is connected to the end of the aforementioned water trap pipeline. 18. A toilet equipped with a flush toilet connected to an external discharge pipe already installed on the floor where the toilet is installed, characterized in that, The external discharge pipe has a stagnation mechanism for temporarily stagnating the passing flush water to induce a siphon effect on the pipe portion where the flush water passes through the flush water discharge pipe in the flush toilet. 19. The toilet of claim 18, wherein: The external discharge pipe locates the retention mechanism at a position below the floor where the toilet is installed. 20. A toilet as claimed in claim 18 or claim 19 wherein, The aforementioned toilet internal discharge pipeline of the aforementioned flush toilet is connected to the aforementioned external discharge pipe directly or via a drain socket. 21. A drainage device for a flush toilet, which has an inflow port connected to the discharge port of the toilet body, and an outflow port connected to a drainpipe connected to the sewer pipe, and is provided with an eccentric connection between the inflow port and the outflow port. The drainage device of the flush toilet of the drainage socket of the socket flow path, is characterized in that, An orifice is provided integrally with the drain socket, and temporarily stagnates the flushing water flowing through the flow path of the socket to generate a siphon. 22. The drainage device for a flush toilet according to claim 21, wherein: The throttle portion includes a throttle flow path that is eccentric to the socket flow path at the position where the throttle portion is provided. 23. The drainage device for a flush toilet according to claim 21 or claim 22, wherein: The throttle portion is disposed near the outflow port. 24. The drainage device for a flush toilet according to any one of claims 21 to 23, wherein: The drain socket has a fixed portion fixed to the ground, the socket flow path has a flow path below the fixed portion and the discharge port is inserted into the drain pipe, and a throttle portion is arranged on the flow path. 25. The drainage device for a flush toilet according to any one of claims 21 to 24, wherein: The throttle portion is formed separately from the drain socket, and a mounting portion for detachably attaching the throttle portion to the drain socket is provided. 26. The drainage device for a flush toilet according to any one of claims 21 to 25, wherein: The above flush toilet is provided with a toilet side throttle near the discharge port. 27. The drainage device for a flush toilet according to claim 26, wherein: The toilet side throttle is arranged eccentrically with respect to the inlet. 28. A drainage device for a flush toilet, comprising: a toilet connection portion having an inflow port connected to a discharge port of the toilet body, and a drain pipe having an outflow port connected to a drain pipe connected to a sewer pipe The connection part has a drain socket that connects the socket flow path between the inlet and the outlet, and is separated from the drain socket and is fixed to the drain socket so that the flushing water flowing through the socket flow path is temporarily stagnated to cause the siphon Occurrence of rinse water retention in the body. 29. The drainage device for a flush toilet according to claim 28, wherein: The above-mentioned flush water retaining mechanism is formed to change the flow path area along the flow direction of flush water. 30. The drainage device for a flush toilet according to claim 29, wherein: The flush water retaining mechanism is arranged in the socket flow path, and is formed such that the flow path area decreases continuously from the upstream side to the downstream side. 31. The drainage device for a flush toilet according to any one of claims 28 to 30, wherein: The above-mentioned flush water retaining mechanism is an orifice that narrows the flow path area of the socket flow path. 32. The drainage device for a flush toilet according to claim 31, wherein: The throttle portion is formed such that its flow path area decreases from the upstream side to the downstream side. 33. The drainage device for a flush toilet according to claim 31 or claim 32, wherein: The above-mentioned flush water retaining mechanism is provided with an expanded flow path that increases the area of the flow path at a part upstream of the throttle portion. 34. The drainage device for a flush toilet according to any one of claims 31 to 33, wherein: The throttle portion is provided near the outflow port. 35. The drainage device for a flush toilet according to claim 31, wherein: The above-mentioned flush water retaining mechanism has a plurality of throttling parts from the upstream side to the downstream side. 36. The drainage device for a flush toilet according to any one of claims 28 to 35, wherein: The flushing water retaining mechanism is provided with a fixing mechanism positioned and fixed on the drain socket. 37. The drainage device for a flush toilet according to any one of claims 28 to 36, wherein: The drain socket has a socket flow path in which the inflow port and the outflow port are eccentric, and the flush water retaining mechanism is arranged on the socket flow path. 38. A drain socket having a bedpan part in which flush water remains as stagnant water when not flushing, and a pipe for discharging new flush water supplied to the bedpan part together with the stagnant water to the outside The water flushing toilet of the drainage path of the road is connected, and the aforementioned drainage path is connected with the sewage pipe provided outside, so that the stagnant water or flushing water from the aforementioned drainage path flows to the drainage socket of the aforementioned sewage pipe. It is characterized in that, The drain socket is constituted by two or more members that can be separated along the flow direction of the aforementioned pooled water or flushing water. 39. The drain socket of claim 38, wherein: A variable mechanism for changing the length of the drainage socket in the flow direction of the accumulated water or flushing water is provided. 40. The drain socket of claim 39, wherein: The aforementioned two or more members are composed of at least a first member that is a member disposed on the ground or wall surface where the sewage pipe is installed, and a second member that is combined with the first member, Equipped with a positional relationship changing mechanism for changing the positional relationship between the first member and the second member, The variable mechanism is a mechanism for changing the positional relationship by the positional relationship changing mechanism, thereby changing the length of the drain socket in the flow direction of the accumulated water or flushing water. 41. A socket as claimed in claim 39 or claim 40 wherein, At least one of the first member and the second member is provided with a display unit for displaying information on the length of the variable drain socket. 42. The drain socket as claimed in claim 41 , wherein: A distance value from the ground or wall on which the sewage pipe is installed to the position where the drain socket is connected to the drainage channel is displayed on the display unit as the length information. 43. The drain socket of claim 39, wherein: The aforementioned two or more members are at least composed of a first flow path forming member as a member forming a flow path communicating with the terminal end of the aforementioned drainage path, and are separately constructed from the first flow path forming member, as a structure formed by the first flow path. The flow path formed by the member is constituted by the second flow path forming member of the member extending downstream, Equipped with a flow path changing mechanism for changing the length of the flow path extended by the second flow path forming member, The variable mechanism is a mechanism for changing the length of the flow path by the flow path changing mechanism, thereby changing the length of the drainage socket in the flow direction of the accumulated water or flushing water. 44. The drain socket of claim 43, wherein: The aforementioned second flow path forming member is composed of a plurality of members, The flow path changing mechanism is a mechanism for changing the length of the flow path by combining the plurality of members. 45. A socket as claimed in claim 43 or claim 44 wherein, A mark indicating the cutting position of the member is provided in advance on the second flow path forming member, The length of the flow path extended by the second flow path forming member is changed by cutting the second flow path forming member based on the mark. 46. The drain socket of claim 45, wherein: The second flow path forming member is a member capable of extending the flow path formed by the first flow path forming member below the installation surface of the toilet, The value of the distance that the second flow path forming member protrudes below the installation surface of the toilet is indicated in advance near the mark. 47. A drain socket as claimed in claim 43 or claim 44 wherein, The second flow path forming member is configured to be attachable and detachable to a predetermined portion of the drain socket, The length of the flow path extended by the second flow path forming member is changed by changing the mounting position of the second flow path forming member. 48. The drain socket of claim 43, wherein: The first flow path forming member is composed of a first member which is a member arranged on the ground or wall surface on which the sewage pipe is installed, and a second member combined with the first member, Equipped with a positional relationship changing mechanism for changing the positional relationship between the first member and the second member, The aforementioned variable mechanism changes the length of the aforementioned flow path by means of the aforementioned flow path changing mechanism, thereby changing the length of the aforementioned drainage socket towards the circulation direction of the aforementioned accumulated water or flushing water, and changes the length of the aforementioned positional relationship changing mechanism by the aforementioned positional relationship changing mechanism. The aforementioned positional relationship is a mechanism for changing the length of the aforementioned drainage socket toward the flow direction of the aforementioned pooled water or flushing water. 49. A socket as claimed in any one of claims 43 to 48 wherein, A throttle portion is provided on the second flow path forming member as a portion where the cross-sectional area of the member is smaller than that of the inlet portion of the member. 50. A flush toilet provided with a drain socket as claimed in any one of claims 38 to 49. 51. A flush toilet connected to the drain socket as claimed in any one of claims 38 to 49. 52. The flush toilet according to claim 50 or claim 51, wherein the flush toilet is a siphon type toilet that performs toilet flushing using a siphon action. 53. A socket flow path extension member, which is a member connected to a drain socket connecting the terminal of the drain path of a toilet with a sewage pipe provided outside, as a member for connecting the flow formed inside the drain socket The channel extends to the socket flow path extension member of the member on the further downstream side, wherein, Two or more numerical values indicating the length of the extension of the aforementioned flow path are displayed. 54. A drain socket, which is connected and arranged between the aforementioned siphon trap of a flush toilet having a siphon trap and the discharge pipe outside the toilet, and guides the flushing water passing through the aforementioned siphon trap to the aforementioned drain Pipe socket A drain socket for a pipeline, characterized in that, The socket piping has an adjustment mechanism for incrementally adjusting the amount of flushing water passing through the socket piping during a siphon end period near the end of a siphon action that occurs when the siphon trap becomes full. 55. The drain socket of claim 54, wherein: The aforementioned adjusting mechanism has a replenishing mechanism for allowing the remaining flushing water to pass through the flushing water in the replenishment socket pipeline during the final stage of the aforementioned siphon. 56. The drain socket of claim 55, wherein: The replenishment mechanism has a storage mechanism for storing a part of the flushing water passing through the socket pipe or the siphon trap until the end of the siphon. 57. A drain socket as claimed in claim 55 or claim 56 wherein, The aforementioned replenishing mechanism makes the aforementioned retained flushing water replenish the flushing water passing through the aforementioned socket pipeline by its own weight. 58. A socket as claimed in claim 55 or claim 56, wherein: The aforementioned replenishment mechanism uses the water head pressure that induces siphon action to retain a part of the aforementioned passing flushing water, so that the flushing water retained in the previous stage can replenish the aforementioned socket pipeline with passing flushing water by its pressure. 59. The drain socket of claim 54, wherein: The adjustment mechanism restricts passage of the flushing water of the socket pipe until the end of the siphon, and eases the restriction of the flush water during the end of the siphon. 60. A drain socket as claimed in any one of claims 54 to 59 wherein, There are a plurality of aforementioned adjustment mechanisms in the aforementioned socket pipeline. 61. A socket as claimed in any one of claims 54 to 60, wherein, The aforementioned adjusting mechanism is arranged at the flushing water storage part of the storage mechanism that retains the flushing water passing through the aforementioned socket pipeline and participates in the occurrence of the aforementioned siphon effect. 62. A flush toilet, which is a flush toilet with a siphon trap, characterized in that, The aforementioned siphon trap includes: a first descending pipe portion downstream from the bent portion, and a downstream pipe portion formed therefrom, which is connected to a discharge pipe outside the toilet and arranged to guide flushing water to the second pipe portion of the discharge pipe. downpipe, In the second descending pipe part, there is an incremental adjustment of the amount of flushing water passing through the second descending pipe part during the end of the siphon action near the end of the siphon action due to the full state of the siphon trap. adjustment mechanism. 63. The flush toilet of claim 62, wherein: The second descending line portion is formed separately from the siphon trap including the first descending line portion, and is connected and arranged between the first descending line portion and the discharge pipe. 64. The flush closet of claim 63, wherein: The second descending pipe part of the split body is taken as the drain socket described in any one of claim 54 to claim 61. 65. The flush closet of claim 63, wherein The aforementioned split second downpipe can be replaced by the drain socket described in any one of claim 54 to claim 61 . 66. A flush toilet, which is a flush toilet with a siphon trap, Claims 54 to 61 are equipped with socket pipes that are connected between the siphon trap and the discharge pipe outside the toilet, and guide the flushing water passing through the siphon trap to the discharge pipe. The drain socket described in any of the items. 67. A siphon type flush toilet comprising a toilet bowl that receives dirt and retains accumulated water, and a siphon that forms a drainage channel that allows flushing water supplied to the toilet bowl to be discharged to the outside together with the accumulated water Type water flushing toilet, it is characterized in that, The above drainage pipeline is provided with: A stagnation mechanism that temporarily stagnates the flushing water flowing in the drainage channel to induce a siphon effect, A delay mechanism for delaying the flow velocity of the flush water when the flush water passing through the retention mechanism is below a predetermined flow rate or flow velocity is provided on the downstream side of the retention mechanism. 68. The siphonic flush toilet of claim 67, wherein: The stagnation means is a constricted portion protruding from the inner pipe wall of the drain pipe to reduce the flow channel area of the drain channel. 69. A siphonic flush closet as claimed in claim 67 or claim 68, wherein: The stagnation mechanism is a stripping mechanism that guides the flushing water flowing along the inner pipe wall of the drain flow path away from the inner pipe wall. 70. A siphonic flush toilet as claimed in any one of claims 67 to 69, wherein: The above-mentioned peeling mechanism is a convex portion for peeling protruding from the inner pipe wall of the drainage channel. 71. The siphonic flush toilet of claim 70, wherein: The delay mechanism is arranged so as not to receive the flow of flushing water impacting the peeling convex portion at a predetermined or higher flow rate or flow rate, and to accept the flow at a predetermined or lower flow rate or flow rate. 72. The siphonic flush toilet of claim 71, wherein: The delay mechanism includes a delay protrusion protruding from an inner pipe wall of the drainage channel, and the delay protrusion is formed to receive flushing water passing through the peeling protrusion in a flow rate state or a flow state below a predetermined value. 73. A siphonic flush toilet as claimed in any one of claims 67 to 72, wherein: The delay mechanism includes flow direction changing means for changing the direction of the flush water flowing through the drainage channel. 74. A siphonic flush toilet as claimed in any one of claims 67 to 73, wherein: The above-mentioned flow direction changing mechanism is a guide part for causing the flushing water flowing in the drainage channel to flow helically along the inner pipe wall. 75. A siphonic flush toilet as claimed in any one of claims 67 to 74, wherein: The retention mechanism and/or the delay mechanism are provided in a drain line integrated with the bedpan. 76. A siphonic flush toilet as claimed in any one of claims 67 to 74, wherein: The above-mentioned drain pipe is provided with a discharge port which is integrally formed with the bedpan part and connected to the bedpan part, and a drain socket connected to a drainpipe on the sewer pipe, The above-mentioned drainage socket is equipped with the above-mentioned retention mechanism and peeling mechanism. 77. The siphonic flush toilet of claim 76, wherein: The drain socket has a socket main body forming a drainage flow path, and the retaining mechanism and the stripping mechanism are mounted separately on the socket main body.

Images