JP4721528B2 - Drainage pipes at the foundation of buildings - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drainage pipe on a foundation of a building, and more particularly to a drainage pipe in which a foundation insertion pipe is inserted inside the foundation of a building, and the drainage is guided indoors to outdoors by the foundation insertion pipe.
[0002]
[Prior art]
Wastewater discharged from drainage sources such as baths in the bathroom, kitchen sinks, washrooms, washing machines, and toilets flows through the indoor and outdoor drainage inflow pipes and joins at the indoor pool installed at the confluence of multiple flows. After that, it flows through the drainage main pipe.
Next, the drainage flows through a public dredger installed inside or outside the housing lot and a drainage outflow pipe connected to the public dredge, and then flows into the public sewer main outside the housing lot.
[0003]
FIG. 8 is a front sectional view showing a conventional drain pipe.
In the drainage pipe 1 shown in FIG. 8, the drainage 3 discharged from a drainage source such as a bath in the house 2 passes through a drainage inflow pipe 6 disposed in the indoor 4 of the house 2 and buried in the ground of the outdoor 5. After the flow, and after joining at the indoor cage 8 provided for each drainage generation source and installed at the junction 7, it flows through the drainage main pipe.
The drainage inflow pipe 6 has a foundation insertion drainage pipe 10 that passes through the inside of the foundation 9 of the house 2. The drainage 3 is led from the indoor 4 to the outdoor 5 through the foundation insertion drain pipe 10 embedded in the foundation 9.
[0004]
[Problems to be solved by the invention]
For example, when the drainage inflow pipe 6 is repaired or replaced in the drainage pipe 1, the foundation insertion drainpipe 10 is conventionally directly embedded in the foundation 9, so that the foundation insertion drainpipe 10 is repaired or replaced. Had the problem that the foundation 9 had to be broken.
[0005]
The present invention has been made to solve such a problem, and when the foundation insertion drain pipe of the drain pipe passes through the inside of the foundation of the building, the foundation insertion drain pipe without breaking the foundation. The purpose is to provide a drainage pipe in the foundation of a building that can be easily repaired and replaced.
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the drainage pipe in the foundation of the building according to the present invention is a drainage pipe in which a foundation insertion drainage pipe is inserted into the foundation of the building, and the drainage is guided from indoors to the outdoors by this foundation insertion drainage pipe. A through portion that has an inner diameter larger than a predetermined dimension of the foundation insertion drain pipe and that opens to and communicates with the indoor and the outdoor, and the through portion provided in the foundation includes: A through-hole formed in the foundation, and a void pipe provided in the through-hole and having an inner diameter larger than the predetermined dimension of the foundation insertion drain pipe and opening to and communicating with the indoor and the outdoor The through-hole of the foundation is configured to be open to the indoor side of the building and a vertical hole that opens to the upper surface of the foundation, and to the vertical hole, and to the outside of the building and to the outer surface of the foundation. Composed of horizontal holes to The void pipe is configured by a vertical void pipe provided in the vertical hole and opened indoors, and a horizontal void pipe provided in the horizontal hole and connected to the vertical void pipe and opened outdoors. The pipe joint in the basic insertion drain pipe has a seal ring at one of its inlet and outlet, and the basic insertion drain pipe is mounted and fixed on the inlet side or outlet side of the pipe joint with the seal ring. A first tube disposed in either one of the void tube and the horizontal void tube so as to be able to be inserted / removed; and a first tube disposed so as to be able to be inserted / removed in the other one of the vertical void tube and the horizontal void tube And the second pipe that is detachably engaged with the outlet side or the inlet side of the pipe joint in a state of being sealed by the seal ring. Said Repair the foundation through drainage pipe, it is to be exchanged.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment according to the present invention will be described with reference to FIGS.
(First embodiment)
1 to 5 are views showing a first embodiment of the present invention. FIG. 1 is a front sectional view showing a drain pipe according to the first embodiment. FIG. 2 is a line II-II in FIG. FIG. 3 is a front sectional view showing a construction procedure of the drain pipe.
As shown in FIGS. 1 to 3, drainage 16 is discharged from drainage sources such as a bath, a kitchen sink, a washroom, a washing machine, and a toilet in a house 15 as a building. The drainage 16 flows through the drainage inflow pipe 17 connected to each drainage generation source, and joins the drainage main pipe 19 at the junction 18.
[0008]
At the junction 18, a residential pit (drainage pit) 20 is installed for each drainage source. The residential cage 20 is a cage installed in the residential land and having an invert portion having various structures. Public dredging is the final dredging that is installed inside or outside the residential land and allows the wastewater inside the residential land to flow into the sewer main outside the residential land. Drainage dredging called public dredging and installation dredging is also a kind of residential dredging and is generally called drainage dredging.
The drainage inflow pipe 17 is connected between a foundation insertion drain pipe 22 that passes through the inside of the foundation 21 of the house 15, and a drainage source and the entrance side of the foundation insertion drain pipe 22. Connected to the outlet side of the foundation insertion drain pipe 22 and the drainage basin 20 which is a house pit, and has an embedded pipe 26 embedded in the ground outdoors. A drainage inflow pipe 17, an upstream drainage main pipe 19, and a downstream drainage main pipe 19 are connected to the drainage tub 20.
[0009]
In the drainage pipe 27 shown in the figure, drainage 16 discharged from a drainage source such as a bath of a house 15 and a kitchen sink flows through a drainage inflow pipe 17, and from the indoor 23 to the outside by a basic insertion drainage pipe 22 of the drainage inflow pipe 17. 25 is led. The term “outdoor” includes the space outside the house 15 and above the ground GL as well as the ground below the ground GL.
Then, the drainage 16 flows into the drainage basin 20 from the drainage inflow pipe 17. The drainage 16 that has flowed through the drainage main pipe 19 through the drainage basin 20 passes through a public pit installed inside or outside the residential land, and then flows through a drainage outflow pipe connected to the public basin, so that the public Join the sewer main. The sewer main is buried deep underground, such as on roads outside the residential land.
A drainage pipe 27 is constituted by the drainage inflow pipe 17, the drainage tub 20, the drainage main pipe 19, the public pit, the drainage outflow pipe, the public sewer main, and the like. The drainage pipe 27 has a predetermined slope for smoothly flowing the drainage 16 smoothly, and the downstream side of the drainage inflow pipe 17 below the buried pipe 26 is buried in the ground.
[0010]
Next, the drain pipe 27 in the foundation 21 of the house 15 will be described.
In the drainage pipe 27 of the present invention, the through portion 30 is provided in the foundation 21. The through portion 30 has inner diameters D1 and D2 that are larger than predetermined dimensions B1 and B2 of the basic insertion drain pipe 22 that is inserted through the through portion 30, respectively, and opens and communicates with the indoor 23 and the outdoor 25. . Thereby, the basic penetration drain pipe 22 which has penetrated the penetration part 30 is made repairable and replaceable.
The through portion 30 provided in the base 21 is configured by a through hole 31 formed in the base 21 and a hollow void tube 32 provided in the through hole 31. The void pipe 32 has inner diameters D1 and D2 larger than predetermined dimensions B1 and B2 of the basic insertion / drainage pipe 22, respectively, and opens and communicates with the indoor 23 and the outdoor 25. In addition, the penetration part 30 is comprised only by the through-hole formed in the foundation 21, and the case where it does not have a void pipe | tube may be sufficient.
[0011]
The through hole 31 of the foundation 21 communicates with the vertical hole 34 that opens in the indoor 23 of the house 15 and in the upper surface 33 of the foundation 21, and opens in the outside 25 of the house 15 and in the outer surface 35 of the foundation 21. And a horizontal hole 36.
Although the case where the vertical hole 34 is formed up to the lower surface 37 of the reinforced concrete portion of the foundation 21 is shown, the vertical hole 34 only needs to communicate with the horizontal hole 36, so the bottom of the vertical hole 34 is the concrete portion of the foundation 21. It may be located above the lower surface 37.
The void tube 32 includes a vertical void tube 38 provided in the vertical hole 34 and opened to the indoor 23, and a horizontal void tube 39 provided in the horizontal hole 36 and connected to the vertical void tube 38 and opened to the outdoor 25. ing.
The void tube 32 is made of paper having a predetermined rigidity (strength), and is integrally made of a hard synthetic resin such as polyvinyl chloride, polyethylene, polypropylene, and fiber reinforced plastic (FRP), or a metal such as iron. It may be formed.
[0012]
In the present invention, the foundation insertion drain pipe that passes through the inside of the foundation 21 is provided with a pipe joint with a seal ring 45, and is disposed in either one of the vertical void pipe and the horizontal void pipe so as to be detachable. And a second void which is removably engaged with the pipe joint while being sealed by the seal ring 45. It consists of a tube.
Therefore, the basic insertion drain pipe 22 of this embodiment has a vertical pipe 47 as a first pipe and a horizontal pipe 48 as a second pipe. A 90-degree elbow (hereinafter referred to as an elbow) 46 as a pipe joint with a seal ring 45 is attached to the distal end portion of the vertical pipe 47, and the vertical pipe 47 is arranged so as to be inserted into and removed from the vertical void pipe 38. It is installed. The pipe joint with the seal ring may be a bend having a large curvature radius.
The horizontal tube 48 is disposed inside the horizontal void tube 39 and is engaged with the elbow 46 so as to be disengageable while being sealed by the seal ring 45. The inlet side of the elbow 46 faces upward, and the straight pipe 50 of the vertical pipe 47 is mounted and fixed on this inlet side facing the vertical direction (vertical direction). The outlet side of the elbow 46 faces in the lateral direction (horizontal direction), and a seal ring 45 is provided on the inner surface of the outlet side. For the seal ring 45, a rubber O-ring or the like is used.
The indoor pipe 24 is connected to the upper part of the vertical pipe 47 via a 90-degree elbow 49, and the buried pipe 26 is connected to the outlet side of the horizontal pipe 48. In addition, the case where the part which extended the horizontal pipe 48 comprises the buried piping 26 may be sufficient.
[0013]
The predetermined dimension B1 of the basic insertion drain pipe 22 is the maximum horizontal dimension of the vertical pipe 47 including the elbow 46, and the predetermined dimension B2 is the outer diameter dimension of the horizontal pipe 48. The inner diameter D 1 of the penetrating portion 30 is the inner diameter dimension of the vertical void tube 38, and the inner diameter D 2 is the inner diameter dimension of the horizontal void tube 39.
Since the vertical hole 34 has an inner diameter larger than that of the horizontal hole 36, the inner diameter D1 of the vertical void tube 38 provided in the vertical hole 34 is increased, and the inner diameter D2 of the horizontal void tube 39 provided in the horizontal hole 36 is decreased. ing.
[0014]
Next, the construction procedure of the drain pipe 27 will be described.
As shown in FIG. 3, when constructing the foundation 21 of the house 15 by placing concrete, the void pipe 32 is set in advance at a predetermined position on the foundation. Next, when concrete is poured, a foundation 21 having a through portion 30 that opens and communicates with the indoor 23 and the outdoor 25 is formed.
After that, when constructing the drainage pipe 27 in the foundation 21, the elbow 46 with the seal ring 45 is attached and fixed to the straight pipe 50 to configure the vertical pipe 47, and then the vertical pipe 47 is placed inside the vertical void pipe 38. insert.
At this time, since the predetermined dimension B1 in the horizontal direction of the vertical tube 47 is smaller than the inner diameter D1 of the vertical void tube 38, the vertical tube 47 including the elbow 46 can be inserted into the vertical void tube 38.
Next, the direction and height position of the outlet 51 of the elbow 46 are made to substantially coincide with the position of the horizontal void tube 39. Next, the horizontal tube 48 is inserted from the outlet side of the horizontal void tube 39 (that is, the outer surface 35 side of the foundation 21) to the inside of the horizontal void tube 39.
Then, the distal end portion (inlet portion) 53 of the horizontal tube 48 is attached to the outlet portion 51 of the elbow 46. As a result, since the space between the elbow 46 and the horizontal tube 48 is sealed by the seal ring 45, the drainage 16 does not leak. With such a construction procedure, the drainage pipe 27 as shown in FIG. 1 can be configured.
[0015]
In the drainage inflow pipe 17 of the drainage pipe 27, the drainage 16 discharged from a drainage source such as a bath passes through the indoor pipe 24, the vertical pipe 47, the horizontal pipe 48 and the buried pipe 26, and then the drainage tub 20. Will flow into.
When it is desired to repair or replace the foundation insertion drain pipe 22 that passes through the inside of the foundation 21, the side pipe 48 is pulled to the outdoor 25 side after digging up the periphery of the buried pipe 26. Then, since the elbow 46 with the seal ring and the horizontal tube 48 are not bonded, the horizontal tube 48 can be pulled out from the elbow 46. Next, the vertical tube 47 is pulled out above the vertical void tube 38. Thereby, the foundation insertion drain pipe 22 can be easily repaired and replaced without breaking the foundation 21.
[0016]
FIG. 4 is a front cross-sectional view showing a drainage pipe according to a modification of the first embodiment, FIG. 1 equivalent view, FIG. 5 is a front cross-sectional view showing the construction procedure of the drainage pipe shown in FIG. FIG. 4 is a diagram corresponding to FIG. 3.
In the following embodiments and modifications, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only different parts are described.
4 and 5, the drainage 16 is guided from the indoor 23 to the outdoor 25 by the foundation insertion drainage pipe 22 a that passes through the inside of the foundation 21 of the house 15.
The through-hole 30a is provided in the base 21 with a through-hole 30a having inner diameters D1 and D2 that are larger than predetermined dimensions B1 and B2 of the foundation insertion drain pipe 22a and opening and communicating with the indoor 23 and the outdoor 25, respectively. The basic insertion drain pipe 22a through which is inserted can be repaired and replaced.
[0017]
The through portion 30a provided in the foundation 21 is configured by a through hole 31a formed in the foundation 21 and a void tube 32a provided in the through hole 31a. The void pipe 32a has inner diameters D1 and D2 that are larger than the predetermined dimensions B1 and B2 of the basic insertion drain pipe 22a, respectively, and opens and communicates with the indoor 23 and the outdoor 25.
The through hole 31a of the foundation 21 includes a vertical hole 34a that opens in the indoor 23 of the house 15 and the upper surface 33 of the foundation 21, and a horizontal hole 36a that communicates with the vertical hole 34a and opens outdoors 25 and on the outer surface 35 of the foundation 21. It is comprised by.
The void tube 32a includes a vertical void tube 38a provided in the vertical hole 34a and opened to the indoor 23, and a horizontal void tube 39a provided in the horizontal hole 36a and connected to the vertical void tube 38a and opened to the outdoor 25. ing.
The basic insertion / drainage pipe 22a of this example is composed of a horizontal pipe 48a as a first pipe and a vertical pipe 47a as a second pipe. The horizontal tube 48a has an elbow 46 with a seal ring 45 attached to the distal end thereof, and is disposed in the horizontal void tube 39a so as to be inserted and removed. The vertical pipe 47 a is disposed inside the vertical void pipe 38 a and is engaged with the elbow 46 so as to be disengageable while being sealed by the seal ring 45.
The predetermined dimension B1 of the basic insertion drain pipe 22a is the maximum dimension in the perpendicular direction of the horizontal pipe 48a including the elbow 46, and the predetermined dimension B2 is the outer diameter dimension of the vertical pipe 47a. The inner diameter D1 of the through portion 30a is the inner diameter dimension of the horizontal void tube 39a, and the inner diameter D2 is the inner diameter dimension of the vertical void tube 38a.
Since the horizontal hole 36a has a larger inner diameter than the vertical hole 34a, the inner diameter D1 of the horizontal void tube 39a provided in the horizontal hole 36a is increased, and the inner diameter D2 of the vertical void tube 38a provided in the vertical hole 34a is decreased. ing.
[0018]
When constructing the drain pipe 27a, an elbow 46 with a seal ring is attached and fixed to the straight pipe 52 of the horizontal pipe 48a. The seal ring 45 on the inlet side of the elbow 46 is made to face upward.
Then, the horizontal tube 48a is inserted into the horizontal void tube 39a. The direction and horizontal position of the inlet 51a on the seal ring 45 side of the elbow 46 are made to coincide with the position of the vertical void pipe 38a. Next, the vertical tube 47 a is inserted into the vertical void tube 38 a and attached to the inlet 51 a of the elbow 46.
Thereby, the vertical tube 47a and the elbow 46 are sealed by the seal ring 45. In this manner, the drain pipe 27a shown in FIG. 4 is configured. This drainage pipe 27a also has the same effects as the drainage pipe of the first embodiment.
[0019]
In the drain pipes 27 and 27a shown in FIGS. 1 to 5, the gap between the lateral pipes 48 and 48a and the lateral void pipes 39 and 39a on the outer surface 35 of the foundation 21 is a watertight cap (for example, FIG. 7). If the cap 62 is closed, it is possible to prevent earth and sand, water and the like from entering the gap.
Further, on the upper surface 33 side of the foundation 21, if the gap between the vertical pipes 47, 47a and the vertical void pipes 38, 38a is closed with a cap (for example, the cap 63 shown in FIG. 7), dust, foreign matter, etc. Can be prevented from entering the gap.
Further, in the drain pipes 27 and 27a, the length dimension L of the vertical void pipes 38 and 38a and the height positions of the horizontal void pipes 39 and 39a can be easily adjusted to arbitrary values. Therefore, the embedding depth H of the embedding pipe 26 can be easily adjusted when the drainage pipes 27 and 27a are constructed on site.
Elbow 46 in foundation through distribution pipes 22,22a, the inlet section, that shows a case where a seal ring 45 on one of the outlet portion.
[0020]
(Second Embodiment)
FIG. 6 is a front sectional view showing a drain pipe 27b according to the second embodiment of the present invention, and is a view corresponding to FIG. 1. FIG. 7 shows a drain pipe 27c according to a modification of the second embodiment. It is front sectional drawing and is a figure equivalent to FIG.
6 and 7, the drainage 16 is guided from the indoor 23 to the outdoor 25 by the foundation insertion drainage pipes 22b and 22c that pass through the interior of the foundation 21 of the house 15. .
The foundation 21 is provided with through portions 30b and 30c that have an inner diameter D3 larger than a predetermined dimension (here, outer diameter B3) of the base insertion drain pipes 22b and 22c and that open to and communicate with the indoor 23 and the outdoor 25. Thus, the basic insertion drain pipes 22b and 22c passing through the through portions 30b and 30c can be repaired and replaced.
The through portions 30b and 30c provided in the foundation 21 are provided in the through holes 31b and 31c formed in the foundation 21 and the through holes 31b and 31c, and predetermined dimensions (outer diameter B3) of the foundation insertion drain pipes 22b and 22c. ) Void pipes 32b and 32c that have a larger inner diameter D3 and open to and communicate with the indoor 23 and the outdoor 25.
The basic insertion drain pipes 22b and 22c that pass through the through portions 30b and 30c are flexible pipes that can be freely bent. The penetration part 30b has the bending parts 60 and 61 which can insert and extract the basic | foundation penetration drain pipe 22b.
Moreover, the penetration part 30c has the bending part 60 which can insert and extract the basic | foundation penetration drain pipe 22c. The through holes 31 b and 31 c of the foundation 21 are opened indoors and on the upper surface 33 of the foundation 21, and are opened outdoors 25 and on the outer surface 35 of the foundation 21.
The void tubes 32b and 32c are integrally formed using a hard synthetic resin such as polyvinyl chloride, polyethylene, polypropylene, fiber reinforced plastic, or a metal such as iron, but may be paper having a predetermined rigidity.
[0021]
The through portion 30b shown in FIG. 6 is formed in a substantially S shape (including an inverted S shape, including a shape obtained by combining a plurality of L shapes). The void pipe 32b has bent portions 60 and 61 into which the basic insertion / drainage pipe 22b using a flexible pipe can be inserted and extracted. Moreover, it is preferable that the void pipe 32b slightly protrudes so that the void pipe 32b is not filled with concrete when the concrete is placed in a state in which the void pipe 32b faces the lateral direction or the oblique direction from the upper surface 33 of the foundation 21.
If it does in this way, the indoor piping 24 connected to this can be brought close to the upper surface 33 of the foundation 21 on the inlet side of the foundation insertion drain pipe 22b. As a result, the desired flow gradient θ can be secured in the indoor pipe 24 that is disposed in a narrow space under the floor of the house 15 and has a restricted height dimension, so that the drainage 16 smoothly flows down the indoor pipe 24 naturally. .
[0022]
The penetrating portion 30c shown in FIG. 7 is formed in an approximately L shape (including an inverted L shape, including a curved shape having a large curvature radius (for example, an arc shape)). The void pipe 32c has a bent portion 60 into which the basic insertion / drainage pipe 22c using a flexible pipe can be inserted and extracted.
In the outer surface 35 and the upper surface 33 of the foundation 21, the gap between the foundation insertion / distribution pipe 22c and the void pipe 32c is closed by caps 62 and 63 attached to the opening of the void pipe 32c. A watertight cap 62 is used in the buried portion.
Thereby, earth and sand, water, dust, foreign matter, etc. can be prevented from entering the gap. In addition, it is preferable to provide the caps 62 and 63 also in the drain pipe 27b shown in FIG.
[0023]
Since the basic insertion / drainage pipes 22b and 22c are formed of flexible pipes, insertion and removal from the void pipes 32b and 32c are easy. Since the S-shaped void tube 32b and the L-shaped void tube 32c have large curvature radii of the bent portions 60 and 61, the basic insertion drainage tubes 22b and 22c are smoothly inserted into the void tubes 32b and 32c. Can be withdrawn. Therefore, the foundation insertion drain pipes 22b and 22c can be easily repaired and replaced without breaking the foundation 21.
[0024]
By the way, the concept of “skeleton infill housing (hereinafter referred to as SI housing)” has been proposed for buildings in recent years and has already begun to be implemented in collective housing. In this SI house, the foundation and housing of the house are made to last for a long time (for example, about 100 years), and interiors such as partitions in the house can be easily changed by removing the walls. It is something that can be done. Accordingly, it is possible to provide a house that can flexibly cope with changes in the number of residents and changes in generations.
In SI houses, based on past experience, it is predicted that the life of drainage pipes will be shorter than the life of the foundations and housings of houses, and the floor plan is changed so that sources of wastewater such as kitchens and washstands are located in different locations. You may want to move on. In order to prepare for these cases, it is required that the drainage pipe is configured to be replaceable without breaking the foundation of the house.
Then, if this invention is applied to SI house, the existing foundation penetration drainage pipes 22-22c which penetrate the inside of a foundation will be pulled out, and it can replace | exchange easily for the new foundation penetration drainage pipes 22-22c. Thereby, it can contribute to the spread and promotion of SI housing.
In the drawings, the same reference numerals denote the same or corresponding parts.
[0025]
【The invention's effect】
Since the present invention is configured as described above, when the foundation insertion drain pipe of the drain pipe passes through the inside of the foundation of the building, the foundation insertion drain pipe is easily repaired and replaced without breaking the foundation. be able to. Further, the pipe joint in the basic insertion drain pipe has a seal ring at one of the inlet part and the outlet part, and the first pipe is attached and fixed to the other of the inlet part and the outlet part. Since there is only one place, drainage pipes can be configured easily. Also, in the long term, there is only one place for the seal ring that is more anxious to seal compared to mounting and fixing. configuring the free excellent drainage pipe is Ru can.
[Brief description of the drawings]
FIG. 1 to FIG. 5 are views showing a first embodiment of the present invention, and FIG. 1 is a front cross-sectional view showing a drain pipe line according to the first embodiment.
FIG. 2 is a plan view taken along the line II-II in FIG.
FIG. 3 is a front sectional view showing a construction procedure of the drain pipe.
4 is a front cross-sectional view showing a drain pipe according to a modification of the first embodiment, corresponding to FIG.
5 is a front sectional view showing the construction procedure of the drain pipe shown in FIG. 4, and is equivalent to FIG.
FIG. 6 is a front cross-sectional view showing a drain pipe according to a second embodiment of the present invention, corresponding to FIG.
FIG. 7 is a front sectional view showing a drain pipe according to a modification of the second embodiment, corresponding to FIG.
FIG. 8 is a front sectional view showing a conventional drainage pipe and is equivalent to FIG.
[Explanation of symbols]
15 Housing (building)
16 drainage 21 foundation 22-22c foundation insertion drain pipe 23 indoor 25 outdoor 27-27c drain pipe 30-30c penetration part 31-31c through hole 32-32c void pipe 33 upper surface 34, 34a vertical hole 35 outer side surface of foundation 36, 36a Horizontal hole 38, 38a Vertical void pipe 39, 39a Horizontal void pipe 45 Seal ring 46 Elbow (pipe joint)
47 Vertical pipe (first pipe)
47a Vertical pipe (second pipe)
48 Horizontal pipe (second pipe)
48a Horizontal tube (first tube)
60, 61 Bending part B1, B2 Predetermined dimension B3 Outer diameter (predetermined dimension)
D1-D3 inner diameter

Claims (1)

A drainage pipe line in which a foundation insertion drain pipe is inserted inside the foundation of the building, and the drainage is led from the indoor to the outdoors by this foundation insertion drain pipe,
The base has a through-hole that has an inner diameter larger than a predetermined dimension of the basic insertion drain pipe and opens to and communicates with the indoor and the outdoor.
The through portion provided in the foundation includes a through hole formed in the foundation and an inner diameter greater than the predetermined dimension of the foundation insertion drain pipe provided in the through hole, the indoor and the outdoor And a void tube that opens and communicates with
The through hole of the foundation is a vertical hole that opens in the building and in the upper surface of the foundation, and a horizontal hole that communicates with the vertical hole and opens in the outside of the building and on the outer surface of the foundation. And
The void pipe is configured by a vertical void pipe provided in the vertical hole and opened indoors, and a horizontal void pipe provided in the horizontal hole and communicated with the vertical void pipe and opened outdoors.
The pipe joint in the basic insertion drain pipe has a seal ring on one of its inlet and outlet parts,
The basic insertion drainage pipe is attached and fixed to the inlet side or the outlet side of the pipe joint with the seal ring, and is disposed in one of the vertical void pipe and the horizontal void pipe so as to be detachable. A pipe and a vertical void pipe and a horizontal void pipe are detachably disposed in the other and are engaged with the outlet side or the inlet side of the pipe joint while being sealed by the seal ring. By being constituted by the second tube that is detachably engaged,
A drainage pipe line in a foundation of a building, wherein the foundation insertion drainage pipe inserted through the penetrating portion can be repaired and replaced .

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