CN1771371B - Improvement of the flushing device of the toilet water tank - Google Patents

Abstract

The invention relates to improvements to toilet tank flush systems. More specifically, the invention relates to improvements which are based on a novel method of arranging and connecting different float elements with means for retaining the overflow (20) such as to maintain same in a stable position during both a partial and/or full flush. The invention is also based on the particular structure formed by the bell-shaped base (1) which is connected to the water outlet mouth of the tank. Moreover, the aforementioned novel float elements can be easily adapted to different tank flush systems. The invention also comprises an off-centre conduit (24) which is solidly connected to a support bridge and to the structure of a particular piece which is connected to the flush device, said conduit also serving as a guide for the upper rim of the overflow (20).

Description

Improvements to flushers for toilet tanks

technical field

The present invention relates to improvements to flushers for toilet cisterns, the improvement being applicable to flushers with freely selectable water volumes, although the improvement may also be applied to other flushers, since one advantage of such flushers is that the flusher The design of the basic parts is adaptable and versatile, and the use of common parts for different types of flushers can actually result in the need for large inventories. the

Improvements are applicable to both single-flush and dual-flush flushers. the

In all cases, the present invention proposes a new and efficient system that guarantees the stability of the overflow pipe during partial flushing or full flushing. the

The invention also relates to the correct vertical guidance of the overflow pipe, as well as some components of the operating mechanism of the flusher. the

Background technique

There are different flushing devices at present, such as the flushing devices disclosed in European patent E-96200356 and utility model 9701307. the

These two patents deal with double flush flushers of the so-called inverted dome type, since their operation is based on the action of some floating bodies inside the opening of a vitreous-shaped cavity located at the top. the

The two floating bodies are located at radially opposite positions, and a mechanism is provided to keep the overflow pipe at a certain moment, and the operation of the two floating bodies is carried out in the cavity by utilizing the floating of the two floating bodies. the

This configuration includes a third float mounted on the overflow pipe and adjustable in height to determine the volume of water for partial flushing. the

The operation steps of these two flushers are as follows. the

First, two push mechanisms raise the overflow pipe to different heights. the

When pushing for a partial flush, the upward movement of the overflow tube is less than when pushing for a full flush, in such a way that the overflow tube is not blocked by the wedge of the bottom buoy to keep it afloat. the

When the water stops floating the top buoy, with nothing provided to keep it afloat, the buoy and overflow pipe descend and close the opening. the

If a greater push causes the wedge to actuate the fixed area of the overflow pipe, the overflow pipe will descend to close the opening until the water level drops below the level of the two bottom floats, emptying the necessary amount inside the inverted hood, which , the wedge releases the overflow tube, which descends to allow a full flush. the

In both documents, two different types of buoys are used, the inverted shroud being operated by the bottom buoy integrally formed in the main body. Furthermore, in both described configurations, complex mechanisms are used to differentiate the push types. This is because the float is mounted directly to the overflow tube, the movement of the overflow tube needs to be restricted as the overflow tube tends to float and will always cause a full flush. the

On the other hand, such a configuration requires a relatively large parts inventory. On the other hand, when the market demands different types of flushers, such as flushing by pushing, utilizing a pull mechanism, single flushing, etc., the use of the main body or cover and other parts of the flusher is limited except for this type of operation . the

These explain the high price of this type of irrigator, which makes it difficult to enter the market, despite its unquestionable ecological advantages. the

Contents of the invention

In order to achieve the above objects and avoid the disadvantages mentioned in the previous part, the present invention proposes some improvements to the washer of the toilet water tank. It is characterized in that it mainly includes a new base cover structure, can use different components, and can be used for different types of flushers. the

The base cover is characterized by including a securing mechanism for components constituting the main body of the flusher. the

The base cover is also characterized in that it includes grooves to divert a portion of the flushing liquid towards the top surface of the sealing joint during a partial flush. The diverted fluid will apply pressure to the top surface of the joint causing a rapid drop when the predetermined volume is emptied. the

The base cover is also characterized in that it comprises a single fixed shaft of the bottom floats to which the bottom floats are jointed, this single way results in a better and smoother operation, uncomplicated assembly. Additionally, these shafts include float centering mechanisms. the

Alternatively, these bottom floats can be mounted to another pair of axles identical to the previous ones, which are also located in the neck of the base cover, raised a certain height to raise the position of the floats so that they can be actuated earlier, so when the toilet tank is When rinsing all over, empty less water. the

In this case the overflow pipe will be provided with additional fixing grooves to interact with the float in the new position. the

Another feature of the base cover is its neck, which, in addition to serving as a bottom guide for the overflow tube, includes openings or windows that allow the operation of the protruding wedges of the bottom-connected float to secure the overflow tube when flushing is performed . the

These advantages go beyond the float on the shaft for positioning the bottom of the neck. the

The position of the bottom floating body is changed, and if the floating body has been installed on the bottom shaft, the sealing of the water tank must be carried out in advance. The liquid will not be completely emptied, which allows for complete and efficient flushing and saves a lot of water. the

In order to empty the water, at least one outlet has a bottom float. the

Through the holes it is possible to empty the glass body constituting the base cover when the different complementary parts constituting the flusher are mounted thereon. the

Also, in case the outlet is located in the side part of the glass body, the discharge of water can be regulated by a simple removable sealing joint comprising a rotating ring mounted to the outside of the hood. the

We now describe the different types of mechanisms that can be used when the flusher is operated by pushing, either through a double-flush mechanism or through a full-flush mechanism, provided with support bridges whose bottom base forms together with the base cover the above-mentioned inverted cover, A connected floating body is arranged on it. the

As for the support bridge, it includes a fixing mechanism on which a top adjustable floating body is arranged to keep the overflow pipe at the design height. When using a dual flush system, the desired or required discharge volume can be adjusted. These fixing mechanisms are aligned vertically with the fixed bottom buoy so that similar or identical components can be used. the

When double flushing is used, the improvement proposed by the present invention allows the use of a single type of float, the two pairs of floats being identical, moreover, unlike the known patents, the top-adjustable float is not mounted on the overflow pipe, but has a connection Seam fixed to the support bridge, which is independent of the movement of the overflow tube. This allows for weight savings as it does not require additional weight to block movement. the

The support bridges include stops to limit the inclination of the buoy. the

Said top float can optionally be mounted to a complementary support, in which case the complementary is fixed to the support at the desired height and the float can operate perfectly. the

This choice ensures that during installation of the buoy there is no error in setting up different heights of the support bridges, which would otherwise render parts of the flushing system inoperable. the

The flusher operating mechanism, on the other hand, includes a conventional wedging system actuating a lever member, as disclosed in Patent No. 9,701,529. the

However, the operating mechanism includes different new aspects, which will be described in detail below. the

Firstly, channels are provided on the supporting bridges, accommodating the wedges for the actuating levers, and the angles for transmitting the movement of the push mechanism. the

Another feature of the operating mechanism of the flusher is that the connecting shaft of the lever member is moved away from the center of the flusher near the actuation zone of the wedge. In this way, a smooth operation is obtained, causing a slight inclination of the wedge towards the center when the lever member is actuated by the wedge. the

Another feature of the operating mechanism of the flusher is that the angled piece mentioned above includes recesses so as not to restrict the rise of the overflow pipe and some ribs that reduce friction with the inner wall of the channel along which the angled piece is guided along one of its subdivisions . The channel also acts as a top outside guide for the vertical movement of the overflow tube. the

Its operation is similar to a conventional flusher, except that instead of using a top float mounted on the overflow pipe, two symmetrical floats are mounted on a separate shaft, the same axis as the bottom shaft, the purpose of which is to block the overflow pipe At the desired height, flush the desired volume of water. the

Once the toilet tank has been filled, the float is pressed against the surface of the overflow pipe by the projection or stud, tending towards the horizontal due to the buoyancy of the float. the

When the operating mechanism is actuated, the overflow rises a certain distance (partial flushing) until the protrusion of the top float inserts into the annular recess of said overflow pipe so that it remains in this position while the water level drops until the floating float tilts and release the overflow pipe. The overflow tube will drop to form a seal. This process is aided by a portion of the water that enters through diversion slots provided in the base cover. the

For full flushing, the overflow pipe is locked by the bottom floating body located in another recess of the overflow pipe, and the overflow pipe is not released until the water level in the tank drops below the floating body, which is formed by connecting the base with the bridge The inverted vitreous has been emptied. the

The base cover also allows for a dual flush flusher as well as a full flush flusher by means of a pull mechanism as well as a push mechanism. the

The base cover is provided with some radial studs to eccentrically mount the bridge and pull system. Such that the pulling mechanism is extended at a certain height, a cover serving as an inverted glass body will be mounted to the base cover, through which a height-adjustable overflow pipe is movable, and the overflow tube is carried out at the top through the cover guide. the

The parts mounted to the base cover serve as supports for the parts forming the irrigator as well as the glass body, as already described above. the

Finally, as a manufacturing option, and an example of the versatility of the base cover, the main dual flush model can be manufactured with a single bottom float for locking or blocking the overflow, some moving wedges when said float floats , contacting the overflow tube, blocking the overflow tube when the annular recess is at the level at which the full flushing phase ends. the

Finally, when the buoy stops floating, these wedges tilt, in other words they open and stop contacting the overflow pipe in order to rest on the guide neck. This will result in sealing and/or ending a full flush of the tank. the

For a better understanding of the description of the invention, and to form an overall concept, some figures are given which present the purpose of the invention in an illustrative and non-limiting manner. the

Description of drawings

Figure 1 shows a perspective view of an improved toilet tank flusher comprising the present invention;

Figure 2 shows a perspective view of a partially modified base cover;

Figures 3 and 4 show different views of two flushers comprising the improvements of the present invention;

Figures 5 and 6 show two cross-sectional views of the bottom part of the flusher in the open and closed positions, respectively;

Figure 7 shows a view of the top float installed on the optional support;

Figure 8 shows a detailed view of the optional support used to secure the top float to the support bridge;

Fig. 9 is similar to Fig. 2, and it has included the other improvement of the present invention;

Figure 10 shows a view of the bottom part of the flusher showing the seal. the

Detailed ways

Embodiments of the invention are described below with numerals in the accompanying drawings. the

The flusher mainly comprises a base cover 1, on whose structure different parts can be arranged, which will constitute flushers with different forms and embodiments. the

The base cover 1 has some radial stubs 2 serving as fastening means for the parts forming the main body of the flusher. the

The base cover comprises, in addition to the conventional openings 6, some short grooves 5 which, during the partial flushing already described in the previous section, are used to divert part of the liquid after it has drained onto the upper surface of the also conventional sealing joint 7, During partial flushing, the position of the sealing joint 7 is lower than that of full flushing. the

Thus, when the predetermined volume of water has been emptied and the actuation of the buoy ceases, a small amount of water passing through the groove 5 of the base cover 1 will apply pressure to the top surface of said joint 7 causing it to drop rapidly (seal). the

The base cover 1 also includes a single fixing and connecting shaft 8 for connecting some bottom floats 9 . the

To aid in the installation of these floats it is important that the shaft is single to reduce friction that would otherwise impair mobility. These shafts 8 include stops 10 to ensure correct alignment of the floats. the

The base cover comprises a guide neck 11 on which the overflow tube 20 is conveyed and guided, this neck 11 comprising some openings 12 allowing some studs or protrusions 13 to actuate the overflow tube 20 . This allows for a longer guide of the overflow pipe 20 . The protrusion 13 forms part of the bottom float 9, which is mounted to an annular recess 33 provided on the overflow pipe.

On the other hand, at least one outlet 14 is provided in order to remove water from the inversion hood 3 constituting part of the body of the washer. Other conventional flushers already provide this outlet. the

When the system is operated by pushing (dual-flush mechanism and full-flush mechanism), a new support bridge (15) is provided, the base 16 of which forms part of the connection base cover 1, which in the above-mentioned inverted cover 3 will Place the floating body 9. the

Alternatively, the base 16 includes at least one side hole 17 so that the water in the inversion enclosure can be emptied, in a similar manner to the hole 14 described above. the

On the vertical section of the supporting bridge 15, a fixing mechanism is provided, which consists of a pair of short columns 18 for installing the top floating body 19. When the double flushing system is used, it is used to keep the overflow pipe 20 in the desired position. The height, that is, the desired volume of water in the tank for flushing. the

These fixing means formed by studs 18 are aligned vertically to the fixed bottom float 9 in order to allow the use of identical components. the

In an alternative embodiment (see Figures 8 and 9), the top float 19 would be mounted directly to a new support 39 fixed to the desired height of the support bridge 15'. the

To this end, said support 39 will have a pair of studs 18 ′, similar in shape and function to studs 18 . the

The whole assembly will be on the supporting bridges, but this time using some new elastic protrusions 40, introduced in some new holes 41, which are interconnected by narrow channels 42, making it possible to vary the position of said elastic protrusions, thus , the position of the floating body need not be moved from the line formed by the hole 41. the

Gentle pressure towards the center of the flusher is sufficient to align the hole 41 with the narrow portion 43 of the resilient protrusion 40 so that the protrusion can be raised and lowered. the

The support 39 comprises some longitudinal protrusions 44, which can be introduced into guide grooves 45 of the support bridge 15', which prevent lateral movement of the assembly formed by the floating body 19 and said support 39. the

One of the most important advantages of the present invention is the possibility of using a single type of float, in other words, the 4 floats used for this flusher are identical, moreover, unlike the known patents, the adjustable float 19 is not Mounted on the overflow tube 20, but seamed to the support bridge 15, independent of movement of said overflow tube, this makes the structure lighter as no additional weight is required to block its movement. the

The supporting bridges comprise stops 21 in order to limit the inclination of the buoyant body 19 . the

On the other hand, the operating mechanism includes a traditional wedging system 22 (see invention patent No. 970-1520), which can actuate a lever member 23, and the wedging system also has some new aspects as shown below:

On top of the bridge 15 there is provided a channel 24 accommodating a wedge 22 and an angle 25 for transmitting the movement of the push mechanism (located above a plate 26 not shown). the

A connecting shaft 27 connected to the lever member 23 moves from the center of the flusher towards the area of the actuating wedge 22 . This allows for a gentle movement of the opposite end of the lever member 23 which, when actuated, causes said wedge member 22 to tilt slightly towards the centre. the

The angled piece 25 includes a recess 28 so as not to restrict the rise of the overflow tube 20 and some ribs 29, reducing friction with the inner wall of the channel 24, can be used for vertical guidance of the movement of said overflow tube 20, as shown in the figure, A small edge 30 is provided which slides lightly along the outer surface 31 of said channel 24 . the

It is very important that the overflow pipe 20 rises and falls in an absolutely vertical manner in order to ensure correct operation. the

Operation is similar to that of a conventional flusher, with the difference that instead of a top float mounted to the overflow, two symmetrical floats 19 are used, mounted on the same separate shaft as the bottom shaft, the purpose of which is to is to block the overflow pipe at the desired height, which represents the volume of water to be flushed. the

In this case, once the tank is full, the float 19 presses the protrusion 32 against the surface of the overflow tube 20, tending to become horizontal due to its buoyancy. the

When the operating mechanism (disc or plate 26) is actuated, the overflow pipe rises a certain distance (partial flushing) until the protrusion 32 of the top float inserts into the annular recess 33 of said overflow pipe 20, forcing it to remain in this position, The water then descends until the floating buoy 19 is released, the buoy tilts and releases the overflow 20, which descends causing a seal. Part of the water entering through the deflection slots 5 provided on the base cover 1 helps this process.

The emptied water volume corresponds logically to where the locking float 19 is located. the

For full flushing, the locking of the overflow is achieved through the bottom float 9 located in the other annular recess 33, which is not released until the water level in the tank has dropped below the float and the inverted glass is empty. the

In order to convert the flusher to a full flush system, only the top float 19 has to be removed. the

In order to enable the extension of the pulling mechanism, a cover or half-cover 4 will be mounted on the overflow pipe 20', the height of which can be adjusted, and the half-cover will include at least side openings 38 for emptying the water. the

The half-shield 4 is provided with radial stubs 34 for mounting bridges 35 of the drive system with eccentrics 36 . the

As shown, the base cover 1 can form not only a dual-flush flusher, but also a full-flush flusher, either by a pull mechanism or by a push mechanism. the

Alternatively, the bottom buoy 9 is mounted to another pair of shafts 8' (see Figures 9, 10), which, like the previously described shafts 8, are also located on the neck 11 of the base cover 1, but slightly higher to The position of these floats 9 is high so that the floats are actuated earlier and less water is emptied when a full flush of the tank is performed. the

In this case, the overflow tube 20 will be provided with an additional fixing groove 33 to interact with the float in this new position. the

The opening 12 is only used in the case where the float is placed on the shaft in the lower part of the neck and cannot be used in this new position. the

For a change of position of the bottom float 9, the sealing of the tank is to be provided before said float is mounted on the bottom shaft 8, since the complete emptying of the tank has not yet been carried out. This allows for a complete and sufficiently efficient flush, but saves a considerable amount of water. the

In order to empty the water buoyant of the bottom buoy in said inversion housing 3 at least one outlet 14 , 17 is provided, as described above. the

When the different complementary parts constituting the irrigator are mounted on the base cover, the holes allow the complete emptying of the glass body formed by the base cover. the

In this case, when the discharge of water is carried out through the hole 17, the adjustment of the discharge water can be done by simply moving the seal 46, which consists of a rotating ring mounted to the outside of the inverted cover 3 or to the base 16, in both cases , forming an inner space 47 laterally bounded by the peripheral wall. the

Finally, as an example of a manufacturing option and multifunctionality of the base cover 1, it is proposed that the main dual-flush flusher can be manufactured with a single bottom float 9' for locking or blocking the overflow, some movable wedges 37 , when said floating body 9' floats, contacts the overflow pipe, and blocks the overflow pipe when the recess 33 of the overflow pipe is at the height at which the full flushing phase ends. the

When the float 9' stops floating, said wedge 37 tilts, in other words it opens and stops contacting the overflow pipe, so as to rest on the guide neck 11, at which point a seal is created and/or a full flush of the tank is ended. the

Claims (23)

1. A flushing device for a toilet water tank, the flushing device comprising: A base cover (1) with a central neck (11) on which an overflow pipe connected to the bottom sealing joint is mounted and directed downwards; flushing mechanism; at least one floating component; It is characterized in that said base cover (1) comprises a plurality of pairs of shafts, each said shaft connects a floating member to the fixing mechanism of said overflow pipe when said flushing mechanism is actuated, when said floating member is at least partly When released by the liquid in the tank, said fixing mechanism is no longer functional; said shafts (8, 8') also include stops (10) ensuring the centering of said floating members; and The base cover (1) also includes at least one radial slot (5) and at least one top hole (14), the radial slot (5) being arranged in the empty opening (6) of the base cover (1) ) above. 2. The washer of the toilet water tank according to claim 1, characterized in that, the plurality of pairs of shafts (8, 8') are integrally formed on the base cover (1). 3. The washer of the toilet water tank according to claim 2, characterized in that, the first pair of shafts (8) of the plurality of pairs of shafts (8, 8') integrally formed on the base cover (1) Located in the bottom area of said central neck (11). 4. The washer of the toilet water tank according to claim 2, characterized in that, the second pair of shafts (8' of the plurality of pairs of shafts (8, 8') integrally formed on the base cover (1) ) is located in the top area of the base cover (1), and the second pair of shafts (8') is formed in the protruding area of the central neck (11). 5. The washer of the toilet water tank according to claim 1, characterized in that, the plurality of pairs of shafts include some stubs (18), which are integrally formed in the subdivision of the supporting bridge (15), and the supporting bridge (15) formed on said base cover (1). 6. A flusher for a toilet tank according to claim 1, characterized in that said pairs of shafts comprise stubs (18') constituting the components of a separate part (39) connected to a supporting bridge (15'). A part, said support bridge (15') is formed on said base cover (1). 7. The washer of the toilet tank according to claim 6, characterized in that, said independent part (39) comprises an annular body with an inclined shape portion, said annular body comprises two diametrically opposite elastic protrusions (40), said two diametrically opposed elastic protrusions (40) are seamly connected to a pair of pairs of opposing holes (41), which are vertically aligned in On the branch of the support bridge (15'), the independent part (39) also includes some longitudinal protrusions (44), which are guided by two vertical grooves (45), vertical slots are provided in the lower part of the subdivision of said supporting bridges (15'), along the same direction as the respective vertically aligned holes (41), in order to be able to adjust the height of the individual parts (39), and to prevent lateral movement, maintain standard. 8. The washer of the toilet water tank according to claim 7, characterized in that, the opposite holes (41) arranged in the two subsections of the supporting bridge (15') pass through the narrow channel (42) The narrow channel and the hole (41) jointly form a continuous channel. 9. The washer of the toilet tank according to claim 8, characterized in that the two diametrically opposite elastic protrusions (40) are cylindrical and have a radially narrow portion (43) in order to facilitate the connection Said separate part (39) is one of a plurality of pairs of opposing holes (41) which are previously displaced laterally until the radial narrowing (43) coincides with the continuous channel. 10. The washer of the toilet water tank according to claim 1, characterized in that, the fixing mechanism of the overflow pipe includes some wedge-shaped pieces connected to the floating parts, and the wedge-shaped pieces are connected with the overflow pipe Some annular recesses (33) are complementary. 11. The washer of a toilet cistern according to claim 10, characterized in that said wedge-shaped member is a stationary member formed by the inner protrusion (13) of the floating part. 12. The washer of a toilet cistern according to claim 10, characterized in that said wedge comprises some movable parts (37) connected to the top surface of said floating part. 13. The washer of the toilet water tank according to claim 3 or 10, characterized in that, the central neck (11) of the base cover (1) includes a radial opening (12), which can be used as a channel, connected to A wedge for the overflow pipe, the wedge being connected to the floating part. 14. A flusher for a toilet tank according to claim 4, characterized in that said floating member is connected to a second pair of shafts provided on a protruding part of the central neck (11) of said base cover (1) (8'), said floating means comprise some wedges that maintain said overflow tube in the area above the free edge of said neck (11). 15. The flusher of the toilet tank according to claim 3, characterized in that a circumferential wall is provided around the floating part connected to the first pair of shafts (8), limiting the floating above the base cover (1) The interior space (47) where the part is located. 16. The washer of the toilet water tank according to claim 1, characterized in that, it also comprises a top cover (4) in the reverse position, which is connected to the base cover (1), and the top cover comprises at least A radial opening (38). 17. Flusher for toilet cistern according to claim 5, characterized in that said supporting bridges (15) comprise tilting stops (20) of floating parts (19) connected to stubs (18) . 18. The washer of the toilet water tank according to claim 5, characterized in that, the support bridge (15) is hooked to some radially fixed stubs (2) integrally formed with the base cover (1) ). 19. The washer of the toilet water tank according to claim 15, characterized in that, an annular rotary seal (46) is also provided, connected around the circumferential wall limiting the inner space (47), said annular rotary seal ( 46) Can seal radial holes (17) provided in said circumferential wall depending on said annular rotary seal (46) angular position. 20. The washer of the toilet water tank according to claim 5 or 6, characterized in that, the supporting bridging member comprises a top channel (24), and the vertical branch of the eccentrically guiding angle member (25) is provided by the top channel (24). part, said angled piece is connected to the actuating disc (26) by a horizontal division and is also connected to the flushing mechanism. 21. The washer of a toilet tank according to claim 20, characterized in that said overflow pipe comprises an elevated edge (30) which can be guided and slid outside said top channel (24). 22. The washer of the toilet tank according to claim 20, characterized in that the angle piece (25) includes a recess (28) so as not to limit the overflow pipe and some ribs of the angle piece ( 29) in order to reduce friction with the inner surface of said top channel (24). 23. The washer for toilet tank according to claim 1, characterized in that the paired fixing mechanisms of the floating parts located at different heights are all vertically aligned.

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