JP2002322701A - Structure and method for execution of piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an easy adaptation even to a case of deep concrete foundation or a ease of a variation in depth of the concrete foundation, when a piping member is inserted into a piping case, which is buried inside the concrete foundation of a building, and connected to front and rear piping members, so as to construct the whole piping. SOLUTION: The piping members 24-1, 24-2 and 24-3, which constitute a part of the whole of a drain pipe 24, are inserted into the piping case 26, which is wholly formed in a cylindrical bent shape and buried inside the concrete foundation 16, and connected to the other piping members located in the front and rear of the piping members 24-1, 24-2 and 24-3, in order to construct the drain pipe 24. The piping case 26 is constituted in such a manner as to be split into a case body 28 and an insertion cylinder 30. In addition, an insertion- fitting part 52 is provided in the case body 28, and the insertion cylinder 30 is inserted into the insertion-fitting part 52 so as to couple the case body 28 with the insertion cylinder 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction structure and a construction method for a drain pipe, a water supply pipe, a gas pipe and the like in a detached house or the like.

[0002]

2. Description of the Related Art Conventionally, in detached houses and the like, when piping such as drain pipes (hereinafter described as an example of drain pipes), a pipe member in a portion where a concrete foundation is located is embedded in the concrete foundation. Had been constructed. FIG. 24 shows an example. In the figure, 200 is a concrete foundation (cloth foundation in this example), 201 is moisture-proof concrete, 202 is a base, and 204 is a pillar.

[0003] Reference numeral 206 denotes a drain pipe made of a hard resin pipe which cannot be substantially deformed.
−2, 206-3, 206-4, 206-5, 206−
6, 206-7, 206-8, and 206-9 are connected (the piping member 206-4 is a socket).
In this drain pipe 206, the pipe member 206-1 of a portion for taking out drain water from indoors to outdoors is formed by the concrete foundation 20.
0 is provided in an embedded state.

However, in the case of this piping construction structure, since the piping members 206-1, 206-2, and 206-3 are directly embedded in the concrete foundation 200 and the moisture-proof concrete 201, the piping member 206-1 is installed. ,
When the pieces 206-2 and 206-3 are cracked, damaged, or deteriorated, there is a problem that they cannot be replaced.

In the case of this piping construction structure, the piping members 206-1, 206-2, 206-3 located at the concrete foundation 200 and the moisture-proof concrete 201 are connected to
Since the pipes must be installed together with the concrete foundation 200 and the moisture-proof concrete 201 when they are cast, the pipe members 206-1, 206-2, and 206-3 are required.
Despite the time required for piping work being at most about two hours, a plumbing contractor must go to the construction site when placing the concrete foundation 200 and the moisture-proof concrete 201 and perform the piping work. After building a building on the concrete foundation 200, the work of extending the pipe from a drainage source such as a toilet is performed at a later date, and the drainage pipe 2
The connection work between the piping member 206-9 at the end of 06 and the piping member 206-3 installed in advance must be performed, and the piping work of the entire drain pipe 206 becomes extremely complicated,
There was a problem that efficiency was poor.

On the other hand, as shown in FIG. 25, the inside of a concrete foundation (solid foundation in this example) 200 is almost the same as the piping member 206-1 just fitting the piping member 206-1 (slightly less than this). The sheath tube 208 having a curved shape is buried, and a bellows-shaped flexible piping member 206-1 made of a soft resin is inserted into the sheath tube 208 so that the sheath tube 208 can be moved back and forth outside the sheath tube 208. It is also conceivable to use a sheath pipe method used in water supply piping work, such as connecting with another hard pipe member.

In the case of this piping construction structure, the piping member 206
Using the flexibility of -1, it is possible to insert or take out the pipe member 206-1 in the axial direction while deforming the pipe member 206-1 inside the bent sheath tube 208,
Therefore, when the piping member 206-1 inside the sheath tube 208 is later broken, damaged, or deteriorated,
That is, when the replacement becomes necessary, this is replaced with the sheath tube 208.
And can be replaced with another piping member.

However, pipe members made of a soft resin are expensive, have poor durability, and are liable to be deteriorated at an early stage. In addition, it has been pointed out that environmental hormones are eluted. Therefore, it is not preferable to use a piping member made of such a soft resin as a constituent member of the drainage pipe 206 although it is partially.

Therefore, the present inventors embed a pipe case in which a pipe member can be taken in and out without deformation, in a concrete foundation of a building, pass the pipe member therethrough and connect it to the front and rear pipe members. A piping construction structure designed to construct the entire piping was devised.

FIGS. 26 and 27 and FIGS. 28 and 29 show examples. 26 and 27, reference numeral 210 denotes a piping case that includes a straight pipe portion 212 that houses a straight tubular piping member 206-2 therein and an elbow housing portion 214 that houses an elbow-shaped piping member 206-1 inside. It has integrally.

Here, the straight pipe portion 212 has a shape which allows the straight pipe member 206-2 to enter and exit in the axial direction without deformation, and the elbow housing portion 214 also has an elbow-shaped pipe member. The member 206-1 is shaped so that it can be taken in and out without deformation.

In the case of the piping construction structure of this example, the piping member 2
06-1 and 206-2 can be taken in and out of the piping case 210 without deformation, so that the piping members 206-1 and 206-2 located on the concrete foundation 200 are broken after the piping is constructed. When it is damaged, damaged or deteriorated, it can be easily taken out and replaced with a new piping member having no abnormality.

Further, in this piping construction structure, the piping member 2
Hard resin pipes can be used as the pipes 06-1 and 206-2. Therefore, the pipe members 206-1 and 20-2 located inside the pipe case 210, that is, the portion of the concrete foundation 200.
6-2, low cost and excellent durability, quality,
It is possible to use a highly reliable piping member, and it is also possible to use a piping member in which there is no concern that environmental hormones elute.

On the other hand, the examples of FIGS.
This is an example in which 16 is formed in an integral box shape. The piping case 216 has a horizontal tubular portion 218 and a vertical tubular portion 220 and has a bent shape which is bent at a right angle as a whole, and has a straight tubular piping member 206-1 and an elbow-shaped piping member therein. 206-2 and a straight pipe member 206-3
And housed.

In the piping case 216 of this example, the openings 222 and 224 at both ends in the axial direction are closed by lid plates 226 and 228, respectively.
At 28, the pipe members 206-1 and 206-3 are respectively fixed in a fitted state. Here, the piping case 216
Has a horizontally long rectangular shape in cross section.

In the case of this example, for example, a straight pipe member 2
06-1 and the elbow-shaped piping member 206-2 are inserted and connected to each other, and the elbow-shaped piping member 206-2 is connected.
Is inserted into the horizontal tube portion 218 through one of the openings 222 in a state in which the elbow-shaped piping member 206-2 is turned upright after the insertion. This time, the straight pipe member 206-3 is inserted into the inside of the vertical tube portion 220 through the other opening 224, and the distal end portion is inserted and connected to the elbow-shaped pipe member 206-2. -1,206-2,
206-3 can be inserted inside the piping case 216.

In this state, the openings 222 and 224 are closed by the lid plates 226 and 228, respectively, and at the same time, the piping members 206-1 and 206-3 can be fixed. Also in the piping construction structure of this example, the piping member 206
-1, 206-2, and 206-3 can be inserted into or removed from the piping case 216 without deformation. Therefore, also in this case, the same effects as those of the examples shown in FIGS. 26 and 27 can be obtained.

[0018]

By the way, concrete foundations for detached houses and the like include cloth foundations shown in FIG. 24 and solid foundations shown in FIGS. 25, 26 and 28, and even if the same solid foundations are used. The depth of the concrete foundation may be increased (increased in thickness) depending on slopes and other conditions. Thus, when the depth of the concrete foundation is deepened or when the depth of the concrete foundation is variously changed, the piping construction structure shown in FIGS. There is a problem that it is difficult.

For example, in the case of the piping construction structure shown in FIGS. 26 and 27, as shown in FIG.
When the depth of 00 is deep, the distance L to the projecting position of the piping case 210 from the concrete foundation 200 increases, and the end of the piping extended from a drainage source such as a toilet and the piping inside the piping case 210 Member 206-2
It is difficult to make a good connection with the device. That is, in the case of this piping construction structure, if the depth of the concrete foundation 200 becomes deep, the distance L becomes too large.

On the other hand, in the case of the piping construction shown in FIGS. 28 and 29, the above-mentioned problem does not occur because the vertical cylindrical portion 220 of the piping case 216 rises substantially vertically. 26, the piping case 216 is similar to the piping construction structure shown in FIG.
Since it forms an integral structure together with the vertical tube portion 220, when the depth of the concrete foundation 200 changes, various sizes of piping cases 216 having the vertical tube portion 220 of a height corresponding to the depth are prepared. A problem arises.

That is, even in the piping construction structure shown in FIGS. 28 and 29, when the concrete foundation 200 becomes deep or the depth changes variously, there is a problem that it is difficult to cope with it. .

[0022]

SUMMARY OF THE INVENTION A piping construction structure and a piping construction method according to the present invention have been devised to solve such a problem. Claim 1 relates to a piping construction structure, in which a tubular case having a tubular shape and a curved shape as a whole is buried inside a concrete foundation of a building, and a part of the entire piping is placed inside the piping case. The piping member is connected to other piping members before and after through the constituting piping member, so as to construct the entire piping, and the piping case is
After the split structure of the case body and the insertion tube, the case body is provided with an insertion fitting portion, and the case body and the insertion tube are inserted into the insertion fitting portion by inserting the insertion tube. Are connected.

According to a second aspect of the present invention, a piping member having a tubular shape and a curved shape as a whole is buried in a concrete foundation of a building, and a part of the entire piping is formed inside the piping case. The piping member is connected to the other piping members before and after to form the entire piping, and the piping case has an opening at each end in the axial direction, and connects the piping member to each of the piping members. It is characterized in that the end portions are inserted into the piping case from opposite sides through the opening at the ends, and the respective distal ends are inserted and connected in the piping case.

According to a third aspect of the present invention, in any one of the first and second aspects, the piping case has a shape capable of inserting and removing each piping member inserted into the piping case without deformation. It is characterized by being done.

According to a fourth aspect of the present invention, in the first aspect, the case main body is arranged horizontally, and the insertion tube is arranged vertically.

A fifth aspect of the present invention is characterized in that, in any one of the first and fourth aspects, the insertion fitting portion and the insertion tube have a pipe shape having a circular cross section.

According to a sixth aspect of the present invention, in the fifth aspect, the insertion tube is formed of a hard resin pipe used for piping and having a size larger than that of the piping member. .

According to a seventh aspect of the present invention, in the first aspect of the present invention, the case main body is a state in which a straight tubular piping member and an elbow-shaped piping member are connected to each other and the elbow-shaped piping member is connected to the case body. It is characterized in that it can be inserted into the member without deformation from the side of the member.

According to an eighth aspect of the present invention, in any one of the first to fourth aspects, the insertion tube has a shape capable of inserting a straight pipe member without deformation. It is characterized by.

According to a ninth aspect of the present invention, in any one of the seventh and eighth aspects, a guide portion for guiding the insertion while supporting a large-diameter portion at the pipe end of the elbow-shaped piping member is provided on the inner surface of the case body. It is characterized by being provided along the axial direction.

According to a tenth aspect, in any one of the seventh to ninth aspects, the case main body is provided with a stopper portion for defining and positioning an insertion end of the elbow-shaped piping member. And

According to an eleventh aspect of the present invention, in the case according to any one of the seventh to tenth aspects, the pipe member inserted into the insertion cylinder is connected to the elbow-shaped pipe member by connecting to the case main body. A support portion for supporting the elbow-shaped piping member in the insertion direction.

In the twelfth aspect, the first, fourth to eleventh aspects are described.
In any one of the above, a cover plate having a fitting hole with the piping member is provided at an opening at an axial end of the case main body, and the opening is closed by the cover plate. It is characterized by the following.

According to a thirteenth aspect of the present invention, a piping member having a tubular shape and a curved shape as a whole is buried in a concrete foundation of a building, and a part of the entire piping is formed inside the piping case. Connect the piping member with other piping members before and after through to construct the entire piping,
Further, the pipe case is provided with a support device for supporting the pipe case from below.

According to a fourteenth aspect, in the thirteenth aspect, the support device has a support leg, and the height of the piping case can be adjusted at the portion of the support leg. And

According to a fifteenth aspect of the present invention, in any one of the thirteenth and fourteenth aspects, the supporting device is in contact with a concrete casting mold to define the position of the insertion fitting portion at a set position. The contact portion is provided.

Next, the present invention relates to a piping construction method, in which a pipe case having a tubular shape and a curved shape as a whole is buried in a concrete foundation of a building, and one of the entire pipes is placed inside the pipe case. The pipe member is connected to other pipe members before and after through the pipe member constituting the part, and when constructing the entire pipe, first, after setting and fixing the pipe case at a set position, the pipe case is The method is characterized in that a reinforcing bar formed by cutting out a portion is set, and then concrete is cast to construct the concrete foundation.

According to a seventeenth aspect, in the sixteenth aspect, the piping case is divided into a case body and an insertion tube, and they are connected to each other, and both ends in the axial direction of the case body. Is previously covered with a soft resin sheet, and the soft resin sheet is broken at the time of construction, and the pipe member is inserted into the case body.

[0039]

As described above, in the piping construction structure of the first aspect, the piping case is divided into a case main body and an insertion tube, and the case main body is provided with an insertion fitting portion. In this piping construction structure, the shape of the entire piping case is variously changed by changing the combination of the case main body and the insertion tube. be able to.

For example, by arranging the case body horizontally and the insertion tube vertically (claim 4), when the depth of the concrete foundation changes as described above,
By using (or by cutting) a plug having an appropriate length, it is possible to easily cope with a change in the depth of the concrete foundation.

In the second aspect of the present invention, each end of the pipe case in the axial direction is formed into an opening shape, and the pipe members are inserted into the pipe case from opposite sides through the openings, and the front end is inserted into the pipe case. According to this piping construction structure, even when the piping member inside the piping case has a curved shape as a whole, the piping member can be easily inserted into the piping case. To be connected to each other, or to remove them from the piping case.

A third aspect of the present invention is a pipe case in which a pipe member inserted therein can be inserted into and removed from the pipe case without deformation. According to the construction structure, even if the piping member located on the concrete foundation part of the building is broken, damaged or deteriorated after piping construction, it can be easily replaced with a new piping member without abnormality can do.

Since there is no need to use a flexible pipe, that is, a pipe made of a soft resin, as the pipe member as in the pipe construction structure shown in FIG. 25, the service life of the pipe member can be extended and the cost can be reduced. Can be suppressed.

In the piping construction of the first and fourth aspects, the insertion fitting portion and the insertion cylinder can be formed in a pipe shape having a circular cross section (claim 5). In this case, the insertion tube can be constituted by a hard resin tube used for piping and having a size larger than the piping member.

With this arrangement, the insertion tube can be easily formed by effectively using the hard resin tube conventionally used as the piping member, and the piping case can be formed at a low cost. . Further, by cutting the hard resin tube into an appropriate length, an insertion tube having a desired length can be easily obtained. Note that the insertion fitting portion may also be formed of a hard resin pipe joint used for piping and of a size that the insertion tube fits properly.

According to the present invention, the case body of the piping case can be inserted into the inside of the piping case from the side of the elbow-shaped piping member without deformation while the straight-tube-shaped piping member and the elbow-shaped piping member are connected. It can be made to have a simple shape (claim 7). On the other hand, the insertion tube can be formed in a shape that allows a straight pipe member to be inserted into the inside without deformation.

In these cases, on the inner surface of the case main body, a guide portion for guiding the insertion while supporting the large-diameter portion of the pipe end of the elbow-shaped piping member can be provided along the axial direction. 9). With this configuration, when the straight tubular pipe member and the elbow-shaped pipe member are inserted and connected to each other and inserted into the case main body, the insertion operation can be performed smoothly and smoothly. .

According to a tenth aspect of the present invention, a stopper is provided on the case body to define and position the insertion end of the elbow-shaped piping member. In this case, the elbow-shaped piping member on the tip side is properly positioned. Can be located. Claim 1
The first device receives a force at the time of connecting the pipe member inserted into the insertion tube to the elbow-shaped pipe member, and supports the elbow-shaped pipe member in the insertion direction. With this configuration, when the pipe member is inserted into the insertion tube and connected to the elbow-shaped pipe member, the connection operation can be easily performed even if the connection portion is inside the pipe case. be able to. Here, the supporting portion can be shared by the guide portion.

In the present invention, a cover plate having a fitting hole for a piping member is provided at the opening at the axial end of the case body, and the opening can be closed by the cover plate. (Claim 12). Next, according to a thirteenth aspect, a supporting device for supporting the piping case from below is provided.
In the case of this piping construction structure, the piping case can be stably set at a predetermined position and supported by the supporting device.

Here, the supporting device may have a supporting leg, and the height of the piping case may be adjusted by the supporting leg.
In this way, the piping case can be easily positioned at an appropriate height, leveled out, or the angle can be adjusted.

[0051] The support device may be provided with a contact portion that contacts the formwork for concrete casting and regulates the position of the insertion fitting portion at a set position.
5). With this configuration, the position of the insertion fitting portion in the piping case, that is, the position of the insertion tube can be accurately positioned at a predetermined appropriate position with respect to the concrete foundation of the building. It is possible to satisfactorily and properly connect the end portion of the pipe extending from the drainage source and the like to the inside of the pipe case, specifically, the pipe member inside the insertion tube.

Next, according to a piping construction method of the present invention, first, after setting and fixing a piping case at a set position, a reinforcing member formed by cutting out the piping case portion in advance is set, and then concrete is poured. To build a concrete foundation.

In the case of the ordinary construction method, first, after setting the reinforcement, the installation location of the piping case is cut out, and the piping case is installed there. However, in this case, it is necessary to cut the reinforcing bars at the work site, and in that case, there is a problem that the cutting of the reinforcing bars is likely to occur, and the workability of the reinforcing bars is poor.

On the other hand, according to the present invention, the portion where the piping case is located in the reinforcement is cut out in advance, and the piping case is first set to the set position, and then the reinforcement is set. There is an advantage that the workability in cutting the streaks is good and the whole workability including the work of arranging the reinforcing bars is good.

According to a seventeenth aspect, both ends of the case body are previously covered with a soft resin sheet, and the pipe member is inserted into the case body by breaking the soft resin sheet during construction. Things. A cover plate or a seal member is attached to both ends of the case body to form a seal structure at each end, but if the same portion is previously covered with a soft resin sheet, it is installed on the site as it is, The function of sealing the end in the axial direction can be enhanced by the soft resin sheet. The case body can be packed with both ends covered with a soft resin sheet and shipped from a production factory.

[0056]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, 10 is a split stone, 12 is discarded concrete applied to the upper surface, 14 is the ground, 16 is a concrete foundation of a detached house (solid foundation in this example), and 1
Reference numeral 8 denotes a reinforcing bar provided inside, reference numeral 20 denotes a base, and reference numeral 22 denotes a pillar. Reference numeral 24 denotes a drain pipe (pipe) which is constructed by connecting a number of pipe members including a straight pipe member 24-1, an elbow pipe member 24-2, and a straight pipe member 24-3. is there.

Here, the piping members 24-1, 24-2, 24
Reference numeral -3 denotes a hard resin pipe (vinyl chloride pipe) that cannot be substantially deformed. Piping member 24-1,
24-2 and 24-3 are connected by simply inserting each other, and are not particularly bonded. Then, the piping members 24-1, 24-2, and 24-3 are simply inserted so that the piping can be performed.
Elastic packing is provided in the insertion portions of 1, 24-2, and 24-3, and the elastic packing allows the piping member 24-
The connection portions of 1, 24-2 and 24-3 are sealed watertight. However, the parts other than the piping member 24-2 may be bonded and fixed, or the piping member 24-2 may be connected by screwing.

Numeral 26 designates a piping case buried in the concrete foundation 16, in which piping members 24-1 and 24-24 are provided.
Part of the entire pipe 24 composed of 2, 24-3 is inserted. In this example, the piping case 26 is configured by assembling a case main body 28 arranged in a horizontal direction and an insertion tube 30 formed separately from the case main body 28 and arranged in a vertical direction. The piping case 26 has a bent shape bent at a right angle as a whole.

The case body 2 in this piping case 26
Reference numeral 8 denotes a box having a rectangular shape with a cylindrical shape and a vertically-long horizontal cross-section, and a pair of side walls 32, an upper wall 34, a bottom wall 36, and a closing wall 38 at the tip (see FIGS. ). An opening 40 is formed at the left end (the left end in the axial direction) of the case main body 28 in the figure, and the opening 40 is closed by a cover plate 42.

As shown in FIG. 3, the cover plate 42 has bent portions 44 at the left and right ends, and is attached to the case body 28 by fitting. A fitting hole 46 is formed in the cover plate 42, and the fitting hole 46 is fitted to the position of the piping member 24-1. still,
The space between the lid plate 42 and the position of the piping member 24-1 is sealed water-tight by a ring-shaped rubber packing 48 attached to the fitting hole 46.

A circular opening 50 is formed in the upper wall 34 of the case body 28 at an axial end (the right end in FIG. 3) opposite to the opening 40. An insertion fitting portion 52 having a circular cross section is provided on the upper surface of the upper wall 34. The lower end of the insertion tube 30 which is separate from the case body 28 is inserted from above with substantially no gap therebetween, and the case body 28 and the insertion tube 30 are connected to each other.

Here, the insertion tube 30 is formed of a pipe having a circular cross section, and the insertion fitting portion 52 is formed of a pipe-shaped joint having a cross section. More specifically, plug-in tube 30
Is a hard resin pipe (vinyl chloride pipe) used for piping, which is slightly larger (thicker) in diameter than the straight pipe member 24-3. Further, the insertion fitting portion 52 is also a hard resin pipe joint (vinyl chloride pipe joint) used for piping, and is formed of a size that the insertion tube 30 fits properly.

Specifically, in this example, the piping member 24-3
Is made of VU75, and the insertion tube 30 is made of VU1.
It consists of 00. Note that the insertion tube 30 and the piping member 24-
3 is sealed water-tight by a ring-shaped rubber packing 48. The rubber packing 48 has a flange 56 as shown in FIG.

As shown in FIGS. 3 and 5, on the inner surface of the case body 28, more specifically, on the inner surfaces of the pair of side walls 32, a guide rail 58 is provided along the axial direction. These guide rails 58 function to support the large-diameter portion 74 (see FIG. 3) formed at the pipe end of the elbow-shaped pipe member 24-2 and to guide the movement in the horizontal direction. That is, in this example, these guide rails 58 form a guide portion.

However, the guide rail 58 and the case body 2
8 with a groove formed between the upper wall portion 34 and
The large-diameter portion 74 of the elbow-shaped piping member 24-2 can be considered as a guide portion for moving and guiding in the horizontal direction (axial direction).

The pair of guide rails 58 are connected to each other by a connecting portion 60 at a rear end of the case body 28. The connecting portion 60 has a support surface 62 whose upper surface is formed in a semicircular shape.
The elbow-shaped piping member 24-2 is supported from below at the insertion end in cooperation with the upper surface of the guide rail 58.

That is, in this example, the support surface 62 and a part of the upper surface of the guide rail 58 insert the pipe member 24-3 downward and insert the lower end thereof into the upper end of the elbow-shaped pipe member 24-2. It constitutes a support part that receives a force when connecting.

The inner surface of the connecting portion 60 is formed in a semicircular shape, and either or both of the inner surface and the closing wall 38 come into contact with the tip of the elbow-shaped piping member 24-2.
A stopper portion for defining and positioning the insertion end is formed.

As shown in FIGS. 2 and 3, the piping case 26 is provided with a support device 64 at a lower portion thereof. The support device 64 includes an L-angle bracket 66 attached to the case main body 28 and a base plate 68.
And a support leg 70 made of an adjustment bolt.

The bracket 66 and the support leg 70 are fastened by a nut 72 as shown in FIG. 7, and the height of the piping case 26 is changed by changing the screwing position of the nut 72 to the support leg 70. Adjustment, tilt adjustment or level adjustment can be performed. A fixing hole is provided in the base plate 68, and the base plate 68 is fastened and fixed to the concrete 12 discarded by concrete screws in the fixing hole.

As shown in FIG. 7, in this example, the cover plate 4
2, the straight tubular piping member 24-1 and the elbow-shaped piping member 24-2 are inserted and connected in advance with the opening 40 of the case body 28 being opened, and the elbow-shaped piping member 24- 2 are inserted into the case main body 28 in a state in which they are oriented vertically.

At this time, the large-diameter portion 74 of the elbow-shaped piping member 24-2 can be guided in the axial direction while being supported by the guide rail 58. Further, at this time, the pipe members 24-1 and 24-2 can be inserted into the case main body 28 without any deformation (although they cannot be substantially deformed because they are formed of hard resin pipes).

When the pipe member 24-2 is inserted to the inner part of the case main body 28, the stopper portion comes into contact with the tip of the pipe member 24-2 to define the insertion end.
That is, the insertion amounts of the pipe members 24-1 and 24-2 are defined, and the elbow-shaped pipe member 24-2 is accurately positioned.

Thereafter, the opening 40 can be closed by fitting the cover plate 42 into the piping member 24-1 in the fitting hole 46 and fitting it into the opening 40 of the case body 28. Further, by attaching a ring-shaped rubber packing 48 to the fitting hole 46 of the cover plate 42, the space between the cover plate 42 and the piping member 24-1 can be sealed in a watertight manner.

On the other hand, the pipe member 24-
Under the state where 1,4-2 is inserted, the insertion tube 30 that is inserted and fitted into the insertion fitting portion 52 and connected to the case body 28.
When another straight tubular pipe member 24-3 is inserted downward from above, its lower end is inserted inside the upper end of an elbow-shaped pipe member 24-2 waiting below,
Here, the pipe member 24-2 and the pipe member 24-3 are inserted and connected. That is, the piping members 24-1 and 24-2
4-2 and 24-3 are connected to each other inside the piping case 26 so that the piping case 26 is inserted therethrough.

At this time, since the large-diameter portion 74 of the elbow-shaped pipe member 24-2 is supported by the support surface 62 and the upper surface of the guide rail 58, the pipe member 24-3 can be smoothly moved. Can be plugged into.

When it is necessary to pull out the pipe member 24-3 from the pipe case after the concrete foundation 16 has been cast, the elbow-shaped pipe member 24-2 is part of the pipe case 26, specifically, Is received by hitting the insertion tube 30, so that the pipe member 24-3 can be smoothly pulled upward from the pipe member 24-2 and pulled out from the pipe case 26 (at this point, the insertion tube 30 Are buried inside the concrete foundation 16).

Note that, as shown in FIG.
Before the step 6 is performed, the openings 40 and 50 at both ends in the axial direction of the case main body 28, which form a part thereof, are covered with a soft resin sheet 76 or the like in advance, and the step is performed in this state. Can also. In this case, the pipe members 24-1 and 24-2 are inserted into the pipe case 26 so as to partially break the soft resin sheet 76, or the insertion tube 30 is inserted and fitted into the insertion fitting portion 52. The piping member 24-3 is further inserted into the piping case 26.

In this case, the soft resin sheet 76
Since the peripheral portion of the cover plate 42 and the peripheral portion of the insertion fitting portion 52 are covered by the above, the sealing function can be enhanced. Furthermore, by packing and shipping the case main body 28 in this state, it is possible to prevent various foreign substances from entering the case main body 28 before construction.

Next, the procedure of piping construction in this example is shown in FIGS.
This will be described below with reference to FIG. In this example, FIG.
As shown in (I), first, the case body 28 of the piping case 26 is discarded and set at a predetermined position of the concrete 12. At this time, as shown in FIG.
The height of the case body 28 can be adjusted to an appropriate height, the level can be adjusted, or the inclination can be adjusted by the support legs (adjustment bolts) 70 of the case body 2.
8. The piping case 26 can be set at an appropriate position and orientation.

In parallel with this operation, the front end of the base plate 68 of the support device 64 is aligned with the position that has been blacked out in advance, and the front end of the base plate 68 is brought into contact with the inner surface of the formwork 80 standing there (FIG. 9). (II)). Thereby, the axial center position of the insertion fitting portion 52 in the case main body 28, that is, the insertion tube 30 of the piping case 26 can be accurately positioned at a preset position. After the position of the case body 28 is determined in this way, the base plate 68 is discarded with concrete screws and fastened to the concrete 12, and the lower portion of the case body 28 is firmly fixed.

In parallel with the above operations, the insertion tube 30 separate from the case body 28 in the piping case 26
Is inserted into the insertion fitting portion 52 of the case body 28, and the insertion tube 30 and the case body 28 are connected.

Next, as shown in FIG. 11, a reinforcing bar 1 is formed by cutting out the portion where the piping case 26 is located in advance.
8 is carried out so that the piping case 26 is located in the notch 78, and then concrete is poured into the formwork 80 to construct the concrete foundation 16 (FIG. 10 (II)
(I), (IV)).

When the cast concrete foundation 16 has hardened, the formwork 80 is removed as shown in FIG. 12 (V), and the cover plate 42 of the piping case 26 is further removed. Tubular pipe member 24-
1. The elbow-shaped piping member 24-2 is inserted into the interior thereof while being inserted and connected to each other (see FIG. 12 (VI)).

In addition, as shown in FIG. 13 (VII), a straight tubular pipe member 24-3 is inserted downward into the insertion tube 30 in the pipe case 26 from above, and the lower end portion thereof is inserted. To the inside of the upper end of the elbow-shaped piping member 24-2. At the same time, the cover plate 42 is fitted into the opening 40 of the case main body 28 to close the opening 40, and the space between the cover plate 42 and the piping member 24-1 is sealed with a rubber packing 48 in a watertight manner. Also, a ring-shaped rubber packing 48 is mounted between the straight pipe member 24-3 inserted downward from above and the insertion tube 30, and the space therebetween is sealed watertight (see FIG. 13 (VIII)). ).

In the case of this example, since the piping case 26 has a divided structure of the case body 28 and the insertion tube 30, the combination of the case body 28 and the insertion tube 30 is changed so that the entire piping case 26 is replaced. The shape can be changed in various ways. For example, as shown in FIG. 15, when the depth of the concrete foundation 16 changes, by using a plug having an appropriate length as the insertion tube 30, it is possible to easily cope with the change in the depth of the concrete foundation 16. be able to.

In this embodiment, the piping members 24-1, 24-2, and 24-3 inside the piping case 26 have a bent shape as a whole, but the piping members 24-1, 24-24.
By simply inserting each of the pipes 2, 24-3 through the openings 40, 50 from opposite sides into the pipe case 26, they can be plugged into the pipe case 26 so as to be inserted therethrough. -1, 24-2, and 24-3 can be very easily inserted into and removed from the piping case 26 without deformation.

Therefore, even if the piping members 24-1, 24-2 and 24-3 located on the concrete foundation 16 of the building are cracked, damaged or deteriorated after the piping work, they can be easily formed. This can be replaced with a new piping member having no abnormality.

Further, since it is not necessary to use a flexible pipe, that is, a soft resin pipe, as the piping member, the useful life of the piping member can be extended, and the cost can be reduced.

In this embodiment, a guide rail 58 is provided along the axial direction on the inner surface of the case body 28 for supporting and inserting the large-diameter portion 74 at the pipe end of the pipe member 24-2 along the axial direction. When inserting the components 1, 2-2 into the case main body 28 in a state of being inserted and connected, the insertion work can be performed smoothly and satisfactorily.

In this embodiment, since the supporting device 64 for supporting the piping case 26 from below is provided, the piping device 26 can be stably set at a predetermined position and supported by the supporting device 64. The height of the support device 64 can be adjusted by the support legs 70, so that the piping case 26 can be easily leveled out and the angle can be adjusted.

The support device 64 is provided with a base plate 68.
The positioning of the piping case 28 with respect to the concrete casting formwork 80 by the contact action of
The position of the insertion tube 30 with respect to 6, that is, the position of the pipe member 24-3 can be accurately positioned at a preset position. Therefore, the end of the pipe extending from the drainage source such as a toilet and the pipe member 24-3 can be connected well and properly.

In this example, the portion of the reinforcing bar 18 where the piping case 26 is located is cut out in advance, and after the piping case 26 is first set to the set position, the reinforcing bar 1
Since 8 is set, there is an advantage that the workability when cutting the reinforcing bars 18 is good, and that the overall workability including the installation of the reinforcing bars 18 is good.

Although the above is an example in which the concrete foundation 16 is a solid foundation, the present invention can be applied to a case in which the concrete foundation 16 is a cloth foundation as shown in FIG.

FIG. 17 shows another example of the supporting device 64. As shown in the drawing, in this example, a bracket 82 having a female screw hole 84 is provided in the case main body 28, and a supporting leg 70 made of an adjusting bolt is provided there. And the lower end thereof is connected to the base plate 68 in a freely rotating (idling) state. In the case of this example, the height adjustment, level adjustment and inclination adjustment of the case main body 28 and, by extension, the piping case 26 can be automatically performed simply by rotating the support leg 70 composed of an adjusting bolt.

FIG. 18 shows still another example of the support device 64. In this example, a long bracket 82 is provided on the case body 28 in the front-rear direction, and a support leg 70 made of an adjust bolt is screwed thereto.

Next, FIG. 19 also shows another example of the support device 64, in which the support legs 85 are constituted by rigid plates. Here, a pair of vertically long holes 86 are formed in the front and back of the support leg (plate) 85, and a female screw hole 92 is provided in the case body 28 side. By screwing the bolt 88 through the long hole 86, the case body 28 and the support leg 85 are fastened, and the fastening position by the wing bolt 88 is changed up and down along the long hole 86, so that the case body 28 and the piping The height, level and inclination of the case 26 can be adjusted. A fixing piece 90 is formed at the lower end of the support leg 85 by bending, and the support leg 85 is discarded by a concrete screw in the fixing hole formed therein and can be fastened and fixed to the concrete 12.

FIG. 20 shows still another embodiment of the support device 64. In this example, the gantry plate 94 is screwed to the support leg 70 made of an adjustment bolt, and the case body 28 is placed on the gantry plate 94, and the case body 28 is supported by the support device 64 from below. This is an example.

In this example, two support legs 70 are provided at the front and one support leg 70 is provided at the rear. That is, the support legs 70 are configured as three as a whole. Rear support leg 7
0 may be located on the inclined waste concrete 12. In this case, if there are two support legs 70, the case body 2
Although it is not always easy to ensure the stability of the support for the support 8, when only one support leg 70 at the rear is provided, the support leg 70 comes to the position of the inclined concrete discarded concrete 12. In this case, the support device 64 can be relatively easily installed in a stable state, and the stability of the case body 28 and the piping case 26 can be ensured.

In each of the above examples, the pipe case 26 is supported by the support device 64. However, as shown in FIG. 21, when the height from the discarded concrete 12 to the ground 14 is low, the The case main body 28 can be directly installed without using such a supporting device 64. In this case, the case body 28 can be disposed on the concrete 12 through the spacer 96 as necessary.

If the margin (height) between the position of the case main body 28 and the position of the ground 14 is small, for example, about 20 mm, the opening 40 of the case main body 28 as shown in FIG. Through the piping members 24-1 and 24-2
So that the elbow-shaped piping member 24
-2 can be inserted into the case body 28, and then pushed horizontally to insert the piping members 24-1 and 24-2 into the case body 28.

Alternatively, as shown in FIG. 23, the case main body 28 is formed in a box shape having a horizontally long rectangular cross section, and the pipe members 24-1 and 24-2 are connected to each other while the pipe members 24-1 and 24-2 are connected. The pipe members 24-1 and 24-2 are inserted into the case main body 28 through the opening 40 in a state where the 24-2 is laid on its side, and when the pipe members 24-1 and 24-2 are inserted to the innermost part, they are rotated by 90 ° to form a pipe member. 24-2 may be made to be vertical.

In addition, according to the present invention, the cover plate 42 is constituted by a rubber plate having a sealing function by itself, or the present invention is applied to the construction of a water supply pipe other than a drain pipe, a gas pipe and other pipes. The present invention can be configured and implemented in various modified forms and correspondences without departing from the gist of the present invention.

[Brief description of the drawings]

FIG. 1 is a diagram showing a piping construction structure according to an embodiment of the present invention in a construction completed state.

FIG. 2 is a perspective view showing a main part of the piping construction structure of the same embodiment in an external appearance state.

FIG. 3 is a perspective view showing the piping construction structure of the same embodiment disassembled into respective members.

FIG. 4 is a side sectional view of the piping construction structure of the same embodiment.

FIG. 5 is a front sectional view of the piping construction structure of the same embodiment.

FIG. 6 is a diagram showing a configuration of a piping case in the piping construction structure of the same embodiment.

FIG. 7 is a diagram showing a method of inserting a piping member into a piping case in the piping construction structure of the same embodiment.

FIG. 8 is a diagram showing a state in which a soft resin sheet is placed over an end of a piping case in the same embodiment.

FIG. 9 is a view showing one step of a piping construction method according to an embodiment of the present invention.

FIG. 10 is a view showing a step following the step shown in FIG. 9;

FIG. 11 is a diagram showing the arrangement of the reinforcing bars in FIG. 10 together with peripheral portions.

FIG. 12 is an explanatory view of a step following FIG. 10;

FIG. 13 is an explanatory diagram of a step following FIG. 12;

FIG. 14 is an explanatory view of a step of adjusting the height in the step of FIG. 9;

FIG. 15 is an explanatory diagram of advantages of the embodiment of the present invention.

FIG. 16 is a diagram of another embodiment of the present invention.

FIG. 17 is a view showing a main part of another embodiment of the present invention.

FIG. 18 is a view showing a main part of still another embodiment of the present invention.

FIG. 19 is a view showing a main part of still another embodiment of the present invention.

FIG. 20 is a view showing a main part of still another embodiment of the present invention.

FIG. 21 is a diagram showing a main part of still another embodiment of the present invention.

FIG. 22 is a view showing a main part of still another embodiment of the present invention.

FIG. 23 is a view showing a main part of still another embodiment of the present invention.

FIG. 24 is a diagram showing an example of a conventional piping construction structure.

FIG. 25 is a diagram showing an example of a conventional piping construction structure different from FIG. 24.

FIG. 26 is a comparative example diagram showing an example of a piping construction structure devised by the present inventors.

FIG. 27 is a perspective view of a main part of FIG. 26;

FIG. 28 is a diagram showing a piping construction structure devised by the present inventors.
It is a comparative example figure which shows an example different from FIG.

FIG. 29 is a perspective view of a main part of FIG. 28.

FIG. 30 is an explanatory diagram for describing a problem to be solved by the present invention.

[Explanation of symbols]

 16 Concrete Foundation 18 Bar Arrangement 24 Drainage Pipe (Piping) 24-1, 24-2, 24-3 Piping Member 26 Piping Case 28 Case Main Body 30 Insertion Tube 38 Closing Wall (Stopper) 40 Opening 42 Cover Plate 46 Fitting Hole 50 Opening 52 Insertion fitting part 58 Guide rail (guide part, support part) 60 Connecting part (stopper part) 62 Support surface (support part) 64 Support device 68 Base plate (contact part) 70 Support leg 74 Large diameter part 76 Soft resin sheet 78 Notch 80 Formwork 85 Support leg 90 Fixing piece (contact part)

Claims (17)

[Claims] 1. A pipe case having a tubular shape and a curved shape as a whole is buried in a concrete foundation of a building, and the pipe member is passed through a pipe member constituting a part of the entire pipe inside the pipe case. Connect with other piping members before and after,
The entire piping is constructed, and the piping case is divided into a case main body and an insertion tube, and the case main body is provided with a plug-in fitting portion, and the plug-in fitting portion is provided. A pipe construction structure characterized in that the insertion tube is inserted into the case and the case main body and the insertion tube are connected to each other. 2. A pipe case having a tubular shape and a curved shape as a whole is buried inside a concrete foundation of a building, and the pipe member is passed through a pipe member constituting a part of the entire pipe inside the pipe case. Connect with other piping members before and after,
The entire piping is constructed, and the piping case has an opening at each end in the axial direction, and the piping member is inserted into the piping case from opposite sides through openings at the ends. A pipe construction structure wherein each of the distal ends is inserted and connected in the piping case. 3. The piping case according to claim 1, wherein the piping case is shaped so that each piping member inserted into the piping case can be inserted and withdrawn without deformation. Characteristic piping construction structure. 4. The piping construction structure according to claim 1, wherein the case main body is arranged horizontally, and the insertion tube is arranged vertically. 5. The piping construction structure according to claim 1, wherein the insertion fitting portion and the insertion tube have a pipe shape with a circular cross section. 6. The piping construction structure according to claim 5, wherein the insertion tube is a hard resin tube used for piping and has a larger size than the piping member. 7. The case body according to claim 1, wherein the case main body is deformed from a side of the elbow-shaped piping member in a state where the straight-tube-shaped piping member is connected to the elbow-shaped piping member. A piping construction structure characterized in that it is formed into a shape that can be inserted into the inside without any accompanying. 8. The pipe according to claim 1, wherein the insertion tube has a shape that allows a straight pipe member to be inserted therein without deformation. Construction structure. 9. The guide body according to claim 7, wherein an inner surface of the case main body is provided with a guide portion for supporting a large-diameter portion at a pipe end of the elbow-shaped pipe member while inserting and guiding the same. A piping construction structure characterized by being provided. 10. The piping construction structure according to claim 7, wherein the case main body is provided with a stopper portion for defining and positioning an insertion end of the elbow-shaped piping member. . 11. The elbow-shaped pipe member according to claim 7, wherein the case main body is connected to the elbow-shaped pipe member by inserting a pipe member inserted into the insertion tube into the elbow-shaped pipe member. A piping construction structure, wherein a supporting portion for supporting a piping member in the insertion direction is provided. 12. A lid plate according to claim 1, wherein a lid plate having a fitting hole with the piping member is provided at an opening at an axial end of the case body. A pipe construction structure wherein the opening is closed. 13. A pipe case having a tubular shape and a bent shape as a whole is embedded in a concrete foundation of a building, and the pipe member is passed through a pipe member constituting a part of the entire pipe inside the pipe case. A piping construction structure characterized in that the piping case is connected to other piping members before and after to construct the entire piping, and the piping case is provided with a support device for supporting the piping case from below. . 14. A piping construction structure according to claim 13, wherein said supporting device has a supporting leg, and the height of said piping case can be adjusted at a portion of said supporting leg. . 15. The method according to claim 13, wherein
The piping construction structure, wherein the support device includes a contact portion that contacts a formwork for concrete placement and regulates the position of the insertion fitting portion at a set position. 16. A pipe case having a tubular shape and a curved shape as a whole is buried in a concrete foundation of a building, and the pipe member is passed through a pipe member constituting a part of the entire pipe inside the pipe case. When connecting with other piping members before and after, and constructing the entire piping, first, after setting and fixing the piping case at a set position, a reinforcing bar formed by cutting out a portion of the piping case in advance is set. And then constructing the concrete foundation by casting concrete. 17. The flexible resin sheet according to claim 16, wherein the pipe case is divided into a case body and an insertion tube, and the two are connected to each other, and both ends of the case body in the axial direction are previously formed of a soft resin sheet. Wherein the pipe member is inserted into the case body by breaking the soft resin sheet during construction.