JP2013112956A - Base penetration piping structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a base penetration piping structure that is hardly blocked even when the distance from a swivel flow generating joint arranged indoors to a 90° connection pipe joint arranged outdoors is short.SOLUTION: A swivel flow generating joint 1 is arranged inside the base B of a house, a downstream-side end of an upstream-side drain pipe 3 to which a plurality of drain instruments are connected is connected to an upper connection port 1a of the swivel flow generating joint 1, and an upstream-side end of a base penetration drain pipe 5 penetrating the base B of the house is connected to a lower connection port 1b of the swivel flow generating joint 1 through a large curved pipe 4. An upstream-side connection port 2a of a different-diameter 90° connection pipe joint 2 having a downstream side increased in diameter is connected to a downstream-side end of the base penetration drain pipe 5, and an outdoor drain gully 7 is connected to a downstream-side connection port 2b of the different-diameter 90° connection pipe joint 2 through a downstream-side drain pipe 9. Even when the distance from the indoor swivel flow generating joint 1 to the outdoor 90° connection pipe joint 2 is short, generation of negative pressure in falling is suppressed since the 90° connection pipe joint 2 has its downstream side increased in diameter and the outflow is larger than the inflow.

Description

  The present invention relates to a basic through-pipe structure that can prevent sealing damage of each water facility even if the pipe space is small.

  In the conventional underfloor piping system, when the amount of drainage increases and the water level in the piping rises, the bent part or step part of the drain pipe is blocked by a large amount of drainage and the ventilation in the pipe is blocked, generating negative pressure, This negative pressure has the problem that the sealing water in the traps of water facilities such as washbasins, kitchens, bathrooms and toilets is destroyed.

  In order to alleviate and absorb such pressure fluctuations in the underfloor piping system, a rising pipe is installed in the middle of the drainage pipe from the water facility on the floor to the drainage header, and is extended above the building, for example, at the end of the gable roof Measures were taken such as exposing the upper end of the vent pipe to the outside through walls and the like.

  However, as described above, the one that is exposed to the outside by extending the rising pipe upward is breathable, so that it can be returned to normal pressure even if negative pressure is generated in the drainage pipe. Since the rising pipe is exposed to the outside through the wall surface, there is a problem that the construction is troublesome and expensive, and the appearance of the building is damaged. Moreover, the recent house may not be able to secure the space for installing the riser pipe depending on the position of the water facility.

  In addition, there is a vent valve attached to the upper end of the riser pipe. Since this vent valve uses a rubber plate as a valve body, the valve body becomes sticky due to moisture from the drainage pipe. There was a problem that it stuck to the seat and did not operate smoothly, and the rustling sound when the valve body opened and closed was worrisome. Moreover, in order to install this ventilation valve, there has been a problem that it is necessary to wipe the wall, and the construction becomes large.

  In order to solve such a problem, the present applicant arranges small swirl flow generating joints on the inside and outside of the foundation of the house, respectively, and connects the upstream side to the connection port formed on the side wall of the small swirl flow generating joint in the house. The upstream end of the foundation through drainage pipe that penetrates the foundation through the connection port formed at the lower end of the tapered inner surface of the indoor small swirl flow generating joint is formed on the side wall of the outdoor small swirl flow generating joint. Proposed a basic through-piping structure in which the downstream end of the foundation through drain pipe is connected to the open connection port, and the outdoor drain pipe is connected to the lower connection port formed at the lower end of the tapered inner surface of the outdoor small swirl flow generating joint. (Patent Document 1).

JP 2007-056661 A

  The basic through-pipe structure of the above-mentioned Patent Document 1 is an excellent piping structure that can prevent the underfloor piping from being blocked even if the amount of drainage is large, and can prevent the destruction of water sealing in water facilities such as toilets, washstands, bathrooms, and kitchens. there were.

  As described above, the basic through-pipe structure of Patent Document 1 is excellent in preventing the water seal failure of each water facility, but a small swirl flow generating joint disposed indoors and a small swirl flow generating joint disposed outdoor When the distance is very short, the swirl flow generated in the indoor small swirl flow generating joint flows into the outdoor small swirl flow generating joint in a turbulent state before rectification inside the foundation through drainage pipe. As a result, a sufficient swirl flow could not be formed, and when the drainage flowed from the outdoor small swirl flow generating joint to the outdoor drainage pipe, there was a risk of negative pressure being generated and blocking.

  The present invention has been made in view of the above problems, and the problem to be solved is to provide a basic through-pipe structure in which the sealed water of the trap of the water facility is not destroyed, and particularly, the swivel arranged indoors. An object of the present invention is to provide a basic through-piping structure that suppresses the generation of negative pressure and is difficult to block even when the distance from a flow generating joint to a 90 ° connecting pipe joint disposed outdoors is short.

  In order to achieve the above object, the basic through-pipe structure according to the present invention has an upstream in which a swirl flow generating joint is arranged inside a foundation of a house, and a plurality of drainage devices are connected to an upper connection port of the swirl flow generating joint. Connect the downstream end of the side drainage pipe and connect the upstream end of the foundation through drainage pipe that penetrates the foundation of the house through the large bent pipe to the lower connection port of the swirl flow generating joint. Connect the upstream connection port of the 90 ° connecting pipe with a different diameter, which is expanded on the downstream side, to the downstream end of the through drainage pipe. It is characterized by connecting an outdoor drainage pipe through a pipe.

  In the basic through-pipe structure of the present invention, the 90 ° connection pipe joint having the different diameter is preferably a swirl flow generating joint.

In the basic through-pipe structure of the present invention, the waste water that has flowed into the swirl flow generating joint from the upstream drain pipe becomes a swirl flow, and flows into the basic through drain pipe with an air core formed. At this time, the swirl flow generating joint and the foundation through drainage pipe are connected via a large bend pipe having a larger radius of curvature than a normal elbow, so that the swirl flow flows into the foundation through drain pipe without being destroyed. And generation | occurrence | production of the negative pressure at the time of flowing down can be suppressed. And the waste water flows into the 90-degree connecting pipe joint of the different diameter arrange | positioned outdoors from the foundation penetration drain pipe, and is drained to the outdoor drainage pipe.
Here, when the distance from the indoor swirl flow joint to the outdoor 90 ° connection pipe joint, which is often seen in recent housing circumstances, is short (when the length of the basic through drain pipe is short), the indoor swirl flow joint Even if the swirl flow generated in the flow through the foundation through drainage pipe is not rectified, that is, the turbulent flow flows into the outdoor 90 ° connection fitting, the downstream side of the 90 ° connection fitting is expanded in diameter. Because the amount of drainage that can flow out is larger than the amount of drainage that can flow in, the interior of the 90 ° connection fitting is not filled with water, and the generation of negative pressure when flowing down is suppressed to ensure ventilation in the pipe. Can do.
Thus, the present invention can provide an excellent basic through-pipe structure that matches recent housing conditions.

  In addition, in the basic through-pipe structure in which the 90 ° connection pipe joint having the different diameter is a swirl flow generating joint, a swirl flow is formed again by the outdoor swirl flow generating joint, so that blockage is more reliably prevented. Moreover, even if the distance from the indoor swirl flow generating joint to the outdoor swirl flow generating joint is short and sufficient swirl flow cannot be formed by the outdoor swirl flow generating joint, for the same reason as above, Since the inside of the swirl flow generating joint does not become full of water, generation of negative pressure is suppressed, and sealing failure of the underfloor piping system can be prevented.

It is a schematic whole figure of the foundation penetration piping structure concerning one embodiment of the present invention. It is a perspective view of an indoor swirl flow generating joint used for the piping structure. It is a disassembled perspective view of the joint. It is a rear view of the joint. It is sectional drawing of the 90 degree connection pipe joint of a different diameter used for the same piping structure. It is a schematic whole figure of the foundation penetration piping structure concerning other embodiments of the present invention. It is a perspective view of an outdoor swirl flow generating joint used for the piping structure. It is a rear view of the joint.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

  In the foundation through-pipe structure of the present invention shown in FIG. 1, an indoor swirl flow generating joint 1 is arranged in a boxed portion B1 of soil concrete inside a cloth foundation B of a house, and formed at the upper part of the indoor swirl flow generating joint 1. Connected to the upper connection port 1a connected to the downstream end of the upstream drainage pipe 3 connected to a drainage pipe (not shown) from a water facility such as a toilet, washbasin, bathroom, kitchen, etc. The upstream end of the base through drainage pipe 5 that penetrates the fabric foundation B of the house through the short pipe 6 (VU75 pipe) and the large bent pipe 4 in the lower connection port 1b formed at the lower end of the generating joint 1 And connecting the upstream connection port 2a of the 90 ° connection pipe joint 2 of different diameter arranged in the ground outside the fabric foundation B to the downstream end of the foundation through drain pipe 5 A short pipe 8 (VU100 pipe) and a large bend pipe 4 are connected to the downstream side connection port 2b of the 90 ° connection pipe joint 2 having a different diameter. 0 and the connection port 7 a of the outdoor drainage basin 7 are connected through the downstream drainage pipe 9.

  As shown in FIGS. 2 and 3, the indoor swirl flow generating joint 1 arranged inside the fabric foundation B of the house having the basic through-pipe structure has a rounded dome-shaped upper member with a low resistance at the upper end. 1A and a synthetic resin pipe joint composed of two members, a lower member 1B whose inner surface is a tapered surface 1d, as shown in FIG. 4, and the upper member 1A includes an upstream drain pipe 3 An upper connection port 1a for connecting the two is formed.

As shown in FIGS. 2 and 3, the upper connection port 1 a protrudes so as to be deflected and curved on one side of the upper part of the upper member 1 </ b> A, and the wastewater flowing in from the upstream drainage pipe 3 is Then, it becomes a trigger for generating a swirling flow at the curved portion of the upper connection port 1a, and flows into the upper member 1A while swirling about 1/4 turn. Since the upper member 1A has a rounded dome shape with a low resistance at the upper end as described above, the drainage that is generating a swirling flow that has been routed through the upper connection port 1a is transferred to the upper member 1A. By being in contact with the inner surface of the glass, it is prevented from being broken, and this helps to form a more complete swirl flow.
Further, as shown in FIG. 4, a fitting portion 1 c that fits into a groove 1 e of a lower member 1 </ b> B, which will be described later, protrudes downward from the lower end portion of the upper member 1 </ b> A.

  The lower member 1B constituting the indoor swirl flow generating joint 1 together with the upper member 1A forms a vigorous swirl flow with the lower connection port 1b for connecting the short pipe 6 as shown in FIGS. It has a taper surface 1d and an annular groove 1e into which the fitting portion 1c of the upper member 1A formed on the outer periphery of the taper surface 1d is inserted. The lower member 1B and the upper member 1A are The fitting portion 1c of the upper member 1A is inserted into the concave groove 1e of the lower member 1B, and is integrated by watertightly fitting with an adhesive.

  As shown in FIG. 4, the tapered surface 1 d is an inner wall surface of a lower constriction formed inward from the upper end portion of the lower member 1 </ b> B. By forming the tapered surface 1 d, The waste water that has swirled around the member 1A and has flowed into the lower member 1B swirls around the peripheral surface of the tapered surface 1d a plurality of times to form a more powerful swirling flow and flow to the lower connection port 1b. It has become.

  The indoor swirl flow generating joint 1 comprising the upper member 1A and the lower member 1B is formed such that the upper connection port 1a for connecting the upstream drain pipe 3 is shifted to one side of the upper member 1A, and the lower side Since the taper surface 1d is formed on the member 1B, the wastewater flowing in from the upstream drainage pipe 3 is surely swirled by the upper member 1A while being compact, and further, the taper surface 1d gains more momentum. It flows into the large bend pipe 4 via the short pipe 6.

  The large bend pipe 4 has a radius of curvature of 100 mm or more. Since the large bend pipe 4 has a much larger radius of curvature than a normal 90 ° elbow joint, the indoor swirl flow generating joint 1 described above is used. The drainage that produced the swirl flow smoothly flows down the inner surface of the large bend pipe 4 and flows into the basic through drainage pipe 5 while maintaining the swirl flow. Therefore, unless a very large amount of drainage flows at once, the large bend pipe 4 and the foundation through drain pipe 5 are not blocked by the drainage, and the ventilation in the pipe is ensured.

As described above, the basic through-pipe structure of the present invention is a pipe structure that is difficult to block because the indoor swirl flow generating joint 1 that generates a swirl flow is arranged inside the cloth foundation B of the house. When the distance X from the indoor swirl flow generating joint 1 to the 90 ° connecting pipe joint 2 that can be seen cannot be sufficiently secured, the basic through drainage pipe 5 having a short length must be used. When the length of the foundation through drain pipe 5 is short, the swirl flow generated in the indoor swirl flow generating joint 1 is in a state before completely settled (state before rectification), that is, 90 ° outdoors with turbulent flow. When the drainage flows into the connecting pipe joint 2 and the drainage flows down from the 90 ° connecting pipe joint 2 to the large bend pipe 40, a negative pressure is generated due to a sudden pressure fluctuation in the pipe, and the trap of various water facilities There was a risk of destroying the sealed water. Therefore, the basic through-pipe structure of the present invention maintains the ventilation in the pipe at normal pressure by connecting the 90 ° connecting pipe joint 2 having a different diameter described below to the downstream end of the basic through-drainage pipe 5. ing.
The negative pressure referred to here is the pressure in the pipe that works in the direction from the upstream side to the downstream side. By the occurrence of the negative pressure, for example, the trapped water of the trap of various water facilities is pulled downstream. It may cause the destruction of water seal.

  That is, as shown in FIG. 5, the 90 ° connecting pipe joint 2 arranged outdoors is a 90 ° elbow joint having different diameters, the inner diameter D1 of the upstream connecting port 2a and the inner diameter D2 of the downstream connecting port 2b being different. . Specifically, the inner diameter D1 of the upstream connection port 2a is equal to the outer diameter of the basic through drainage pipe 5 that is a VU75 pipe, and the inner diameter D2 of the downstream connection port 2b is the outer diameter of the short pipe 8 that is a VU100 pipe. It is formed to be equal to.

  As shown in FIG. 1, the 90 ° connecting pipe joint 2 having a different diameter having the above configuration has a short pipe 8 (VU100 pipe) and an inner diameter larger than that of the large bent pipe 4 in which the short pipe 8 is fitted. It is connected to the downstream drainage pipe 9 (VU100 pipe) via a large large bent pipe 40, and the downstream drainage pipe 9 is connected to the connection port 7 a of the outdoor drainage basin 7.

  The outdoor drainage basin 7 can be used in any form as long as it is a conventional general drainage basin, and in this embodiment, a connection port where the downstream end of the downstream drainage pipe 9 is connected to the side wall. 7a is formed, a lower connection port 7b to which an outdoor drain pipe (not shown) is connected is formed in the lower part, and an inspection port 7c is formed in the upper part.

In the basic through-pipe structure of the present invention having the above-described configuration, the waste water flowing into the indoor swirl flow generating joint 1 from the upstream drain pipe 3 forms a swirl flow inside the indoor swirl flow generating joint 1, and the short pipe 6. It flows down to the basic through drainage pipe 5 through the large bending pipe 4. Since an air core is formed at the center of the swirling flow, generation of negative pressure when flowing from the indoor swirling flow generating joint 1 to the foundation through drainage pipe 5 can be suppressed.
Furthermore, in the present invention, the downstream connection port 2b, the short pipe 8, the large bent pipe 40, and the downstream drainage pipe 9, which are the downstream side of the 90 ° connection pipe joint 2, are located upstream (upstream) of the 90 ° connection pipe joint 2. Since the diameter is larger than that of the side connection port 2a), the amount of drainage that can flow out from the 90 ° connection pipe 2 to the downstream side is larger than the amount of drainage that can flow into the 90 ° connection pipe joint 2 from the basic through drainage pipe 5. Since the inside of the 90 ° connecting pipe joint 2 (especially the downstream side) is not filled with water, even if the wastewater flows into the 90 ° connecting pipe joint 2 in a turbulent flow, the inflowing drainage flows down while closing the inside of the pipe. Therefore, the generation of negative pressure when flowing from the 90 ° connecting pipe joint 2 to the downstream drainage pipe 9 can be suppressed, and the ventilation in the pipe can be maintained at normal pressure.

As a result of various experiments, the basic through-pipe structure of the present invention has a ventilation path in the pipe even when the distance X from the indoor swirl flow generating joint 1 to the outdoor 90 ° connecting pipe joint 2 is 7 m or less, more specifically 5 m or less. It was proved that it can be secured.
Moreover, when the drop Y from the indoor swirl flow generating joint 1 to the basic through drainage pipe 5 is 1 m or more, the flow rate of drainage at the time of the drop increases particularly, and the possibility of clogging increases. It was proved that the ventilation in the pipe can be secured.

  FIG. 6 is a schematic overall view of a basic through piping structure according to another embodiment of the present invention.

  The basic through-pipe structure of this embodiment uses an outdoor swirl flow generating joint 20 shown in FIGS. 7 and 8 instead of the 90 ° connecting pipe joint 2.

  That is, as shown in FIG. 7, the outdoor swirl flow generating joint 20 is a synthetic resin pipe joint having a rounded dome shape with a low resistance at the upper end, similar to the indoor swirl flow generating joint 1 described above. In addition, an upstream connection port 20a that connects the downstream end of the foundation through drain pipe 5 is formed at the upper end portion, and a downstream connection port 20b that connects the short tube 8 is formed at the lower end portion. Yes.

  As shown in FIG. 7, the upstream side connection port 20 a protrudes so as to be deflected and curved on one side of the upper part of the outdoor swirl flow generating joint 20, and drains flowing from the foundation through drain pipe 5. The curved portion of the upstream connection port 20a triggers the generation of a swirling flow, and flows into the outdoor swirling flow generating joint 20 while swirling approximately 1/4 turn. Since this outdoor swirl flow generating joint 20 is also a rounded dome shape with a low resistance at the upper end, the drainage that has flowed through the upstream connection port 20a is destroyed by contacting the inner surface of the upper member 1A. Is prevented, and a more complete swirl flow can be formed.

  The outdoor swirl flow generating joint 20 is also a swirl flow joint having different diameters, the inner diameter D3 of the upstream connection port 20a and the inner diameter D4 of the downstream connection port 20b being different from the 90 ° connection pipe joint 2 described above. . Specifically, the inner diameter D3 of the upstream connection port 20a is equal to the outer diameter of the basic through drainage pipe 5, and the inner diameter D4 of the downstream connection port 20b is equal to the outer diameter of the short pipe 8 (VU100 pipe).

When the outdoor swirl flow generating joint 20 is connected to the foundation through drainage pipe 5, the wastewater flowing in from the foundation through drainage pipe 5 forms a swirl flow inside the outdoor swirl flow generating joint 20 and then flows into the large bend pipe 40. The water flows smoothly and drains to the outdoor drainage pipe 7 through the downstream drainage pipe 9. Moreover, even if the length of the basic through-drainage pipe 5 is short due to various circumstances of the house and the wastewater flows into the outdoor swirl flow generating joint 20 in a turbulent flow, a sufficient swirl flow cannot be formed. Since the amount of drainage that can flow out is larger than the amount of drainage that can flow in, the inside of the outdoor swirl flow generating joint 20 (especially the downstream side) does not become full of water, as in the case of using the 90 ° connecting pipe joint 2 Aeration can be maintained at normal pressure.
Since the other structure of the basic through-pipe structure of this embodiment is the same as that of the basic through-pipe structure of the embodiment shown in FIGS. 1 to 5 described above, the same reference numerals are assigned to the same members and the description thereof is omitted.

  In the basic through-pipe structure of this embodiment, the outdoor swirl flow generating joint 20 is arranged between the basic through-drainage pipe 5 and the outdoor drainage basin 7, so that the upstream side drainage pipe 3 and the fabric foundation are disposed as described above. The waste water that flows into the indoor swirling flow generating joint 1 arranged inside B and turns into a swirling flow passes through the foundation through drainage pipe 5 via the large bending pipe 4 and is arranged outside the cloth foundation B. By flowing into the swirl flow generating joint 20, a swirl flow is formed again. And since the waste water in which the air core was formed flows into the outdoor drainage pipe 7 via the large bend pipe 40 and is drained to the outdoor drain pipe, the ventilation in the pipe can be kept at normal pressure. In addition, it is possible to more reliably prevent the sealing water breakage of each water facility. Moreover, even if the swirl flows into the outdoor swirl flow generating joint 20 in a turbulent manner and a sufficient swirl flow cannot be formed by the outdoor swirl flow generating joint 20, the amount of drainage that can flow out is larger than the amount of drainage that can flow in. It is possible to prevent the destruction of the sealing water in the traps of each water facility without doing so.

DESCRIPTION OF SYMBOLS 1 Indoor swirl | flow generating joint 1A Upper member 1B Lower member 1a Upper connection port 1b Lower connection port 1c Fitting part 1d Tapered surface 1e Groove 2 90 degree connection pipe joint 2a Upstream connection port 2b Downstream connection port 20 Outdoor rotation Flow generation joint 20a Upstream side connection port 20b Downstream side connection port 3 Upstream drainage pipe 4 Large bend pipe 5 Foundation through drainage pipe 6 Short pipe (VU75 pipe)
7 Outdoor drainage 7a Connection port 7b Lower connection port 7c Inspection port 8 Short tube (VU100 tube)
9 Downstream drainage pipe (VU100 pipe)
B Cloth foundation B
B1 Boxing part of soil concrete D1 Inner diameter of upstream connection port of 90 ° connecting pipe D2 Inner diameter of downstream connecting port of 90 ° connecting pipe D3 Inner diameter of upstream connecting port of outdoor swirling joint D4 Outdoor swirling flow Inner diameter of downstream connection port of generating joint X Distance from indoor swirling flow generating joint to 90 ° connecting pipe fitting or outdoor swirling flow generating joint Y Drop from indoor swirling flow generating joint to foundation through drainage pipe

Claims (2)

  A swirl flow generating joint is arranged inside the foundation of the house, and the downstream end of the upstream drain pipe connected to the plurality of drainage devices is connected to the upper connection port of the swirl flow generating joint, and the swirl flow generating joint The upstream end of the foundation through drainage pipe that penetrates the foundation of the house through a large bent pipe is connected to the lower connection port of the pipe, and the downstream diameter of the foundation through drainage pipe is expanded at the downstream side. A base penetration characterized by connecting an upstream connection port of a 90 ° connection pipe joint and connecting an outdoor drainage pipe to a downstream connection port of a 90 ° connection pipe joint of different diameter via a downstream drain pipe Piping structure.   The basic through-piping structure according to claim 1, wherein the 90 ° connecting pipe joint having a different diameter is a swirl flow generating joint.

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