JP6875158B2 - Building plumbing structure - Google Patents

Description

The present invention relates to a pipe structure of the building.

Buildings such as houses have a piping structure in which piping is installed so as to straddle between the inside and the outside of the building. In such a piping structure, the piping is installed so as to penetrate the foundation of the building (see, for example, Patent Documents 1 to 4).

Japanese Unexamined Patent Publication No. 2005-200963 Japanese Unexamined Patent Publication No. 2002-115294 JP-A-2002-542203 Japanese Unexamined Patent Publication No. 2011-247374 Jikkai Sho 61-186070 Japanese Unexamined Patent Publication No. 2001-159162 Japanese Unexamined Patent Publication No. 2010-043406

When the pipe is penetrated through the foundation of a building, it is conceivable to bury a sheath pipe in the penetrating portion of the foundation and pass the pipe through the sheath pipe as in Patent Document 1. By using the sheath pipe in this way, when maintaining the pipe, it is possible to maintain the pipe itself passed through the inside of the sheath pipe without damaging the foundation. However, in Patent Document 1, since a short straight pipe is horizontally buried as a sheath pipe in the penetrating portion of the foundation, it is not possible to prevent inundation from the outside by itself, and some inundation countermeasures are taken. Was needed.

Therefore, in Patent Documents 2 to 4, in order to prevent water from entering the inside of the foundation from the outside, for example, a height difference is provided in the sheath pipe embedded in the foundation. Then, in order to make a difference in height, a long bent pipe or the like is used for the sheath pipe. Therefore, the range of installation of the sheath pipe on the foundation has become wide, and the structure of the installation portion of the sheath pipe on the foundation has become complicated. In particular, in Patent Document 4, since the sheath pipe is longer and has many bent points so as to extend to the outside of the foundation (particularly to the outdoor side), the installation structure of the sheath pipe is further complicated. It was.

Further, as in Patent Documents 5 to 7, a flexible pipe having a length that covers almost the entire area of the pipe is used, and the pipe is penetrated horizontally with respect to the foundation together with the flexible pipe. Although it exists, the length of the flexible pipe is so long that the flexible pipe is costly, and it is troublesome to handle the flexible pipe at the time of construction and to bury the flexible pipe in the foundation.

Therefore, an object of the present invention is mainly to solve the above-mentioned problems.

In order to solve the above problems, the present invention
A sheath pipe buried so as to penetrate the foundation of the building and open inside and outside the building,
A piping structure of a building including piping or wiring that is guided from the inside of the building to the outside of the building through the sheath pipe.
The sheath pipe includes a straight pipe that penetrates the standing wall portion of the foundation, a bent joint inside the building, and a straight pipe that rises diagonally.
The outer end of the building of the straight pipe that penetrates the standing wall portion of the sheath pipe opens on the ground, and the inner end of the building of the straight pipe that rises diagonally of the sheath pipe is the foundation. It is opened at a position higher than the top of the standing wall,
It is characterized in that the space between the sheath tube and the foundation is waterproof.

According to the present invention, it is possible to obtain a piping structure of a building having a relatively simple structure, good workability, and high waterproofness at low cost by the above configuration.

It is a vertical sectional view which shows the piping structure of the building which concerns on this embodiment. It is a vertical sectional view of the piping part of FIG. It is a component diagram of a support portion, (a) is a band member, (b) is a mounting leg portion, and (c) is a perspective view showing a concrete pin. It is a component diagram of a rising portion, (a) is an elbow pipe, and (b) is a perspective view which shows a straight pipe. It is a vertical sectional view which shows the other embodiment of the piping structure of a building. It is a perspective view of the foundation reinforcing bar which shows the piping construction method (horizontal part burying process) of a building. It is a vertical cross-sectional view which shows the piping construction method (rise part installation process) of a building.

Hereinafter, the present embodiment will be described in detail with reference to the drawings.
1 to 7 are for explaining this embodiment.

<Structure> The configuration will be described below.

A piping structure as shown in Fig. 1 will be installed in a building such as a house. This piping structure includes a sheath pipe 3 buried so as to penetrate the foundation 2 of the building 1 and open inside and outside the building 1, and a pipe leading from the inside 4 of the building 1 to the outside 5 of the building 1 through the sheath pipe 3. It is assumed that the part 6 and the like are provided.

Here, the building 1 may be of any shape, but in this case, a building unit manufactured in advance at the factory is transported to the site, and a plurality of building units are assembled at the site for a short period of time. It is a unit building that can be built with. The figure shows a state in which a floor beam 1a, a floor beam 1b, and the like are installed at the lower part of the building unit.

The foundation 2 is provided in the underfloor portion of the building 1 in order to support the building 1 on the ground GL, and is made of reinforced concrete. In this case, the foundation 2 is a solid foundation that covers the entire lower part of the building 1. The solid foundation has a slab portion 2a constituting the bottom plate and a standing wall portion 2b extending upward from the slab portion 2a.

The sheath pipe 3 is literally a pipe that serves as a sheath of the piping portion 6, and the sheath pipe 3 has a diameter larger than that of the piping portion 6 passing through the inside. The sheath tube 3 is made of a hard resin such as hard polyvinyl chloride. As the sheath tube 3, a tube having a circular cross section or the like is used.

In contrast to the above basic or overall configuration, this embodiment has the following configuration.

(1) The sheath pipe 3 includes a horizontal portion 11 and a rising portion 12 that rises obliquely from the horizontal portion 11.
Then, the outer end of the pod pipe 3 of the building 1 opens on the ground (outer opening 3a), and the inner end of the pod 3 of the building 1 opens at a position higher than the outer opening of the building 1. (Inner opening 3b).
Further, the portion of the pipe portion 6 inserted into the sheath pipe 3 has at least one of the pipe 14 and the wiring 15.
The gap between the sheath pipe 3 and the piping portion 6 is waterproofed (by the waterproof material 17) at least at the position of the outer end of the building 1 in the sheath pipe 3.

Here, the horizontal portion 11 is a horizontal pipe member. The horizontal portion 11 has a length substantially the same as the thickness of the vertical wall portion 2b of the foundation 2, and is assumed to extend horizontally with a uniform wall thickness over the entire length. Further, the rising portion 12 is a pipe member or the like that extends diagonally. The sheath tube 3 has a horizontal portion 11 and a rising portion 12, so that the sheath pipe 3 has a bent shape as a whole.

The ground is the part above the ground GL. In this case, the outer end (outer opening 3a) of the building 1 of the sheath pipe 3 is opened at a position slightly higher than the ground GL. The inner end (inner opening 3b) of the pod 3 of the building 1 may be slightly higher than the outer end of the pod 3, but in this case, the outer end of the pod 3. It is extended higher than the top of the foundation 2 (the uppermost part of the standing wall portion 2b) so as to be sufficiently higher than the portion.

The portion inserted into the sheath pipe 3 is a portion of the piping portion 6 passing through the sheath pipe 3. The pipe 14 can be, for example, a drain pipe, a water supply pipe, a hot water supply pipe, a gas pipe, a refrigerant pipe (such as an air conditioner), or the like. The wiring 15 can be, for example, a power cable, a ground wire, a signal line, an optical cable, or the like.

The gap between the sheath pipe 3 and the piping portion 6 can be filled with, for example, a shielding material such as mortar from the outside of the building 1 as a waterproof material 17. However, a waterproof material 17 other than mortar can also be used.

(2) As shown in FIG. 2, the piping unit 6 may have a plurality of piping 14.

Here, when the piping unit 6 is connected to the equipment of the outside 5 of the building 1, for example, if the equipment of the outside 5 is an outdoor unit of the whole building air conditioning system, the plurality of pipes 14 are the refrigerants on the supply side and the discharge side. The pipes 14a, 14b and the like. In this case, the plurality of pipes 14 are passed directly to the sheath pipe 3 in a loose state, but may be passed through the sheath pipe 3 in a state of being collectively housed in a flexible pipe made of soft resin or the like. ..

The external device 5 may be, for example, a heat pump type electric water heater, a household fuel cell cogeneration system, or the like, in addition to the outdoor unit of the air conditioning system in the entire building. Further, the plurality of pipes 14 are not limited to the refrigerant pipes 14a and 14b.

(3) The piping unit 6 may have a plurality of wirings 15.

Here, when the piping unit 6 is connected to the equipment of the outside 5 of the building 1, for example, if the equipment of the outside 5 is an outdoor unit of the air conditioning system in the entire building, the plurality of wirings 15 may be the power cable 15a or the ground wire 15b. And so on. In this case, the plurality of wires 15 are passed directly to the sheath pipe 3 in a loose state, but the sheath pipe 3 is housed together (together with the pipe 14 and the like) in a flexible tube made of soft resin or the like. You may let it pass.

As described above, the external device 5 may be, for example, a heat pump type electric water heater, a household fuel cell cogeneration system, or the like, in addition to the outdoor unit of the air conditioning system in the entire building. Further, the plurality of wirings 15 are not limited to the power cable 15a and the ground wire 15b.

(4) As shown in FIG. 1, it is preferable to waterproof the space between the sheath tube 3 and the foundation 2.

Here, for waterproofing between the sheath tube 3 and the foundation 2, for example, a sealing material 21 (second waterproofing material) such as a water-expandable clay sealing material or a water-expandable one-component elastic sealing material is used. Can be used. The sealing material 21 is used so as to be wound around the outer circumference of the sheath tube 3. The sealing material 21 expands due to the moisture of the concrete constituting the foundation 2 and is integrated with the foundation 2.

(5) On the outside of the building 1, the anticorrosion tape 25 may be wrapped around at least one of the pipe 14 and the wiring 15.

Here, the anticorrosion tape 25 may be wound independently for each pipe 14 or each wiring 15, may be wound separately for the pipe 14 and the wiring 15, or the pipe 14 and the wiring 15 may be wound together. You can roll it up. In this case, they are wrapped together. Then, if the anticorrosion tape 25 is wrapped so as to cover the opening at the outer end of the sheath tube 3, it is possible to ensure airtightness and prevent insects from invading.

(6) Inside the building 1, the anticorrosion tape 26 may be wrapped around at least one of the pipe 14 and the wiring 15.

Here, the anticorrosion tape 25 may be wound independently for each pipe 14 or each wiring 15, may be wound separately for the pipe 14 and the wiring 15, or the pipe 14 and the wiring 15 may be wound together. You can roll it up. In this case, they are wrapped together. Then, if the anticorrosion tape 25 is wrapped so as to cover the opening at the inner end of the sheath tube 3, it is possible to ensure airtightness and prevent insects from invading.

(7) The foundation 2 may have a heat insulating material 27.

Here, as the heat insulating material 27, a solid heat insulating material 27 having a required thickness, a spray-type heat insulating material 27 that can be constructed on site, or the like can be used. In this case, the heat insulating material 27 is applied to the inner surface of the standing wall portion 2b of the foundation 2 and the portion of the required range on the outer peripheral side of the slab portion 2a. The heat insulating material 27 is provided so that the sheath pipe 3 can pass through.

(8) The sheath tube 3 may be supported by the support portion 31.

Here, the support portion 31 supports the sheath pipe 3 (such as the rising portion 12) inside the building 1. The support portion 31 may be any as long as it can support the sheath tube 3, but in this case, as shown in FIG. 3, an annular band member 32 that can be attached to the outer periphery of the sheath tube 3 and this band. It is supposed to have a support leg 33 that supports the member 32 on the upper part of the foundation 2. The support leg 33 is fixed to the foundation 2 with a concrete pin 34 or the like.

Of these, as shown in FIG. 3A, the band member 32 connects one end of two semicircular band pieces with a hinge portion 32a so as to be openable and closable, and supports legs at the other end. It is assumed that the mounting piece 32b with respect to 33 is provided. The mounting piece 32b is provided with a plurality of mounting holes 32c for the support legs 33 for position adjustment.

As shown in FIG. 3B, the support legs 33 are provided at the leg 33a having a required length required for supporting the sheath tube 3 and extending in the vertical direction, and the lower end of the leg 33a. It has a foot portion 33b. A plurality of mounting holes 33c for the mounting piece 32b of the band member 32 are provided at the upper end of the leg portion 33a for position adjustment. The foot portion 33b is provided with a mounting hole 33d for fixing to the foundation 2 using a concrete pin 34 as shown in FIG. 3C.

(9) As shown in FIG. 1, the inner portion of the building 1 of the sheath pipe 3 may be the rising portion 12.
Then, the rising portion 12 may have a straight pipe 42 connected to the elbow pipe 41.

Here, as shown in FIG. 4A, the elbow pipe 41 has a gap 41a at one end that can be inserted into the end of the horizontal portion 11 on the building side, and a straight pipe at the other end. It is a bent joint having a receiving portion 41b capable of accommodating and connecting 42 and having a bent portion 41c bent at an angle smaller than 90 ° (for example, 45 °) in the intermediate portion. However, in the figure, the elbow pipe 41 is directly connected to the horizontal portion 11 so that the rising portion 12 starts immediately from the position of the foundation 2, but a straight tubular joint is formed between the horizontal portion 11 and the elbow pipe 41. Or a straight pipe or the like may be appropriately interposed so that the rising portion 12 starts from a position further back in the building 1.

Further, as shown in FIG. 4B, the straight pipe 42 is a short pipe member having a uniform wall thickness and extending to a required length over the entire length. The straight pipe 42 is directed in an oblique direction by being connected to the receiving portion 41b of the elbow pipe 41.

The support portion 31 described above supports the diagonal straight pipe 42 from below. Therefore, the band member 32 is pivotally supported by the shaft member 35 with respect to the upper end portion of the support leg portion 33 so as to be tiltable according to the angle of the oblique straight pipe 42.

The elbow pipe 41 and the straight pipe 42 may be extended while being repeatedly added as shown in the embodiment of FIG. 5 (extension portions 43, 44). In this case, by providing the extension portions 43 and 44 twice, the second straight pipe 42 is made horizontal, and the horizontal second straight pipe 42 is supported by the support portion 31.

(10) Hereinafter, a piping construction method for the building 1 in which the piping structure is constructed will be described.

This piping construction method is
The horizontal part burying process of burying the horizontal part 11 of the sheath pipe 3 so as to penetrate the foundation 2 of the building 1.
A pipe insertion process for inserting the pipe portion 6 into the horizontal portion 11 and
A rising portion installation step of connecting the rising portion 12 to the inner end of the building 1 in the horizontal portion 11 and
A waterproofing step is performed in which the gap between the sheath pipe 3 and the piping portion 6 is waterproofed at least at the position of the outer end portion of the building 1 in the sheath pipe 3.

As shown in FIG. 6, the horizontal portion burying step is performed by setting the horizontal portion 11 horizontally with respect to the reinforcing bar 51 when the reinforcement arrangement of the reinforcing bars 51 is completed at the time of construction of the foundation 2. The horizontal portion 11 is fixed to the reinforcing bar 51 so as not to move by using a fixing means such as a number wire. A sealing material 21 such as a water-expandable clay sealing material or a water-expandable one-component elastic sealing material is wound around the outer periphery of the horizontal portion 11 in advance. Both ends of the horizontal portion 11 may be closed.

The pipe insertion step should be performed after the foundation 2 has hardened.

The rising portion installation step is divided into a rising portion attaching step of attaching the rising portion 12 to the horizontal portion 11 as shown in FIG. 7 and a rising portion supporting step of supporting the rising portion 12 with the supporting portion 31.

The waterproofing process includes a waterproofing material filling step of filling the gap between the sheath pipe 3 and the piping portion 6 with a shielding material such as mortar or a waterproofing material 17 from the outside of the building 1, and the piping 14 or wiring 15 on the outside and inside of the building 1. It is divided into an anticorrosion step of wrapping anticorrosion tapes 25 and 26 on at least one of the above.

In addition to the above, a heat insulating material installation step of installing the heat insulating material 27 on the foundation 2 is also performed.

The above-mentioned pipe insertion step, rising portion installation step, waterproof step, and heat insulating material installation step are preferably performed in the above order, but are not necessarily in this order.

<Action / Effect> According to this example, the following action / effect can be obtained.

(Action Effect 1) By passing the piping portion 6 through the sheath pipe 3 penetrating the concrete layer of the foundation 2, the piping portion 6 can be easily installed so as to penetrate between the inside and outside of the building 1.

Further, by passing the piping portion 6 through the sheath pipe 3, the piping portion 6 can be maintained without damaging the foundation 2, and the maintenance can be facilitated.

At this time, since the sheath pipe 3 has a bent shape having a horizontal portion 11 and a rising portion 12, the sheath pipe 3 can be made relatively simple in structure and inexpensive.

Then, the outer end of the building 1 of the sheath pipe 3 is opened on the ground, and the inner end of the building 1 of the sheath pipe 3 is provided at a position higher than the outer opening located on the ground, and the sheath pipe 3 is provided. Since the gap with the pipe portion 6 is waterproofed at least at the position of the outer end portion of the sheath pipe 3, it is possible to reliably prevent water from entering the inside of the building 1 from the outside 5.

Further, since the portion of the pipe portion 6 to be inserted into the sheath pipe 3 has at least one of the pipe 14 and the wiring 15, the pipe portion 6 can be connected to the sheath pipe 3 regardless of the type of the pipe portion 6. It can be inserted into the pipe, and it can be inserted in a state where high waterproofness is ensured.

(Action effect 2) The piping portion 6 may have a plurality of piping 14. As a result, a plurality of pipes 14 can be penetrated and arranged between the inside and outside of the building 1 through the sheath pipe 3 while ensuring waterproofness.

(Action effect 3) The piping portion 6 may have a plurality of wirings 15. As a result, a plurality of wirings 15 can be arranged through the sheath pipe 3 between the inside and outside of the building 1 while ensuring waterproofness.

(Action effect 4) The space between the sheath tube 3 and the foundation 2 may be made waterproof. Thereby, the waterproof property between the sheath tube 3 and the foundation 2 can be ensured.

(Effect 5) On the outside of the building 1, at least one of the pipe 14 or the wiring 15 may be wrapped with the anticorrosion tape 25. As a result, it is possible to prevent corrosion of the pipe 14 or the wiring 15 on the outside of the building 1.

(Action Effect 6) Anticorrosion tape 26 may be wrapped around at least one of the pipe 14 and the wiring 15 inside the building 1. As a result, it is possible to prevent corrosion of the pipe 14 or the wiring 15 inside the building 1.

(Action effect 7) The foundation 2 may have a heat insulating material 27. As a result, the heat insulating property of the two parts of the foundation can be ensured. Further, the piping portion 6 can be installed so as to penetrate the inside and outside of the building 1 with respect to the foundation 2 having heat insulating properties.

(Action effect 8) The sheath tube 3 may be supported by the support portion 31. As a result, the sheath tube 3 can be reliably supported with a required supporting strength.

(Action effect 9) The inner portion of the building 1 of the sheath pipe 3 may be used as the rising portion 12. By setting the rising portion 12 to the inner end of the building 1, the rising portion 12 can be prevented from being embedded in the foundation 2, and even if the sheath pipe 3 is bent, the sheath pipe 3 with respect to the foundation 2 can be formed. It will be possible to facilitate the installation.

Further, the rising portion 12 inside the building 1 of the sheath pipe 3 may be connected to the elbow pipe 41 by the straight pipe 42. As a result, the sheath pipe 3 can be constructed by using small parts having a simple shape, and only the horizontal portion 11 is embedded in the foundation 2 (standing wall portion 2b), and the horizontal portion 11 is later connected to the horizontal portion 11. Since the structure can be made as long as the rising portion 12 is attached, the rising portion 12 can be easily created on site after the foundation 2 is constructed by using the elbow pipe 41 and the straight pipe 42.

(Action and effect 10) The same action and effect as the above-mentioned piping structure can be obtained, and the piping structure can be made more workable by performing the horizontal portion burying process, the piping insertion process, the rising portion installation process, and the waterproofing process. can do. In particular, in the horizontal portion burying step, the horizontal portion 11 only needs to be buried horizontally with respect to a position higher than the ground GL on the foundation 2, so that the construction is easy. Further, since the rising portion installation process can be performed at a position inside the building 1 after the construction of the foundation 2, the burden of construction can be reduced.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are merely examples of the present invention. Therefore, the present invention is not limited only to the configuration of the embodiment, and it goes without saying that the present invention includes a design change or the like within a range that does not deviate from the gist of the present invention. Further, for example, when a plurality of configurations are included in each embodiment, it goes without saying that possible combinations of these configurations are included even if there is no particular description. Further, when a plurality of examples and modifications are disclosed as those of the present invention in the embodiment, possible combinations of configurations straddling these are included even if there is no particular description. Of course. Further, it goes without saying that the configuration depicted in the drawings is included even if there is no particular description. Furthermore, when there is a term such as "etc.", it is used to mean that it includes the equivalent. In addition, when there are terms such as "almost", "about", and "degree", they are used to mean that they include those with a range and accuracy that are generally accepted.

1 Building 2 Foundation 3 Scabbard 4 Inside the building 5 Outside the building 6 Piping part 11 Horizontal part 12 Rising part 14 Piping 15 Wiring 17 Waterproofing material 21 Sealing material 25 Anticorrosion tape 26 Anticorrosion tape 27 Insulation material 31 Support part 41 Elbow pipe 42 Straight pipe

Claims (6)

A sheath pipe buried so as to penetrate the foundation of the building and open inside and outside the building,
A piping structure of a building including piping or wiring that is guided from the inside of the building to the outside of the building through the sheath pipe.
The sheath pipe includes a straight pipe that penetrates the standing wall portion of the foundation, a bent joint inside the building, and a straight pipe that rises diagonally.
The outer end of the building of the straight pipe that penetrates the standing wall portion of the sheath pipe opens on the ground, and the inner end of the building of the straight pipe that rises diagonally of the sheath pipe is the foundation. It is opened at a position higher than the top of the standing wall,
A building piping structure characterized in that the space between the sheath pipe and the foundation is waterproof. In the piping structure of the building according to claim 1.
A piping structure of a building, characterized in that a water-expandable sealing material is wrapped around the outer periphery of the straight pipe of the sheath pipe to waterproof the space between the sheath pipe and the foundation. In the piping structure of the building according to claim 1 or 2.
A piping structure of a building, which comprises the piping or a plurality of the wirings. In the piping structure of the building according to any one of claims 1 to 3.
A piping structure of a building, characterized in that, on the outside of the building, tape is wrapped around the piping or at least one of the wirings. In the piping structure of the building according to any one of claims 1 to 4.
Inside the building, the piping structure of the building is characterized in that tape is wrapped around the piping or at least one of the wirings. In the piping structure of the building according to any one of claims 1 to 5.
The sheath pipe is a pipe structure of a building, characterized in that it is supported by a support portion.

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