JP5968748B2 - Basic through-pipe structure - Google Patents

Description

  The present invention relates to a pipe structure that penetrates the foundation of a building, and more particularly, to a foundation through pipe structure that is devised so as to prevent the entry of termites.

  If termites intrude under the floor of the building, there is a risk of serious damage to the building, so when performing piping work that penetrates the foundation of the building, it is necessary to take thorough measures to prevent termites from entering. is important.

  As a foundation through-pipe structure with such ant-proof measures, for example, a sheath pipe is embedded in the foundation of a building, the pipe is inserted into the sheath pipe, and the indoor side open end of the sheath pipe is covered with a hood. A cover is known in which termite containment areas inside a hood are filled with termite intrusion prevention particles (Patent Document 1).

JP 2003-318883 A

  In the basic through-pipe structure of Patent Document 1, the termites that enter through the gap between the foundation and the sheath pipe or the gap between the sheath pipe and the insertion pipe enter the termite containment area filled with the termite intrusion prevention particles inside the hood. Because it is contained, it is possible to prevent termites from invading under the floor of the building. However, since the bottom edge of the hood and the foundation are difficult to adhere to each other, termites may intrude into the floor.

  Also, when the indoor open end of the sheath pipe is covered with a hood and the downstream end of the underfloor pipe is connected to the upstream end of the insertion pipe protruding from the hood, the height of the hood where the downstream end of the underfloor pipe is high Therefore, there is also a problem that it is difficult to provide a sufficient flow gradient to the underfloor piping when the total length of the underfloor piping is long.

  The present invention has been made under the circumstances described above, and the problem to be solved is to provide a basic through-piping structure that can reliably prevent termites from entering and can also impart a sufficient flow gradient to the underfloor piping. There is.

  In order to solve the above problems, a foundation through-pipe structure according to the present invention includes a sheath pipe embedded in a foundation so as to penetrate the foundation of a building, an insertion pipe inserted into the sheath pipe, and an indoor side of the sheath pipe. A lid that closes the gap between the opening pipe and the insertion pipe, and the gap between the sheath pipe and the insertion pipe is closed with an ant-proof member, and the sheet-shaped ant protection is provided to cover the boundary between the foundation and the sheath pipe The member is disposed in close contact with the cover of the sheath from the surface on the indoor side of the foundation.

In the basic through-pipe structure of the present invention, the sheet-shaped ant protection member is a laminate of a physical ant repellant layer and an adhesive ant repellant layer containing an ant preventive agent, It is preferable that it adheres from the indoor side surface to the sheath of the sheath. Here, “physical ant barrier layer” means an ant barrier layer that termites cannot break through, and “adhesiveness” is a concept including tackiness.
The physical ant barrier layer is preferably a synthetic rubber sheet having a hardness of 40 or more.

As in the basic through-pipe structure of the present invention, a lid is provided to close the gap between the sheath pipe and the insertion pipe at the open end on the indoor side of the sheath pipe, and a sheet-shaped rust prevention member is provided so as to cover the boundary portion between the foundation and the sheath pipe When covering the boundary between the foundation and the sheath tube with the sheet-shaped ant protection member, the structure of the sheath tube is covered with the cover from the indoor side surface of the foundation to the sheath of the sheath. With the lid, the sheet-shaped ant protection member can be stably and firmly attached to the sheath and the surface of the foundation of the sheath tube. Since it can be reliably blocked, termites can be reliably prevented from entering the building floor from the boundary between the foundation and the sheath tube. In the basic through-pipe structure according to the present invention, the gap between the sheath pipe and the insertion pipe is also closed by the ant-proof member, so that it is possible to reliably prevent the entry of termites from this gap.
Moreover, since the base through-pipe structure of the present invention is easy to cover the boundary portion between the foundation and the sheath pipe with the sheet-shaped ant protection member, the indoor side open end of the sheath pipe is hooded as in Patent Document 1. Compared with the case where the termite containment area is filled with the termite containment particles, the workability is much better. In addition, the sheet-shaped ant protection member and the sheath of the sheath tube used in the present invention are not bulky like the hood of Patent Document 1, and therefore, from the basic surface of the upstream end of the insertion pipe protruding from the lid. The height can be set low, and the height from the foundation surface of the downstream end of the underfloor pipe connected to the upstream end of the insertion pipe can be lowered to give a sufficient flow gradient to the underfloor pipe.

In particular, when the sheet-shaped ant protection member is a laminate of a physical ant protection layer and an adhesive ant protection layer containing an ant protection agent, the sheet-shaped ant protection member is based on the adhesive ant protection layer. The termite is firmly connected between the ant-proof member and the base surface and between the ant-proof member and the lid body from the boundary portion between the foundation and the sheath pipe because it adheres firmly from the indoor side surface to the lid of the sheath tube. It is possible to reliably prevent the entry of the termite through the physical ant protection layer, and it is also possible to reliably prevent the termites from breaking through the sheet-like ant protection member and entering.
In this case, if the physical ant barrier layer is a synthetic rubber sheet having a hardness of 40 or more, termite damage can be prevented, so that termites can be reliably prevented from breaking through and entering the physical ant barrier layer. .

It is sectional drawing which shows the basic through piping structure which concerns on one Embodiment of this invention. It is a top view of the same basic penetration piping structure. It is an expanded partial sectional view of the same basic penetration piping structure. It is an expanded partial sectional view of the foundation penetration piping structure concerning other embodiments of the present invention. It is an expanded partial sectional view of the basic penetration piping structure concerning other embodiments of the present invention. (A), (b) is an edge part expanded sectional view of the sheet-shaped ant prevention member from which the shape of an edge part differs, respectively.

  Hereinafter, an embodiment of a basic through-pipe structure according to the present invention will be described with reference to the drawings.

  FIG. 1 is a cross-sectional view showing a basic through-pipe structure according to an embodiment of the present invention, FIG. 2 is a plan view of the basic through-pipe structure, and FIG. 3 is an enlarged partial cross-sectional view of the basic through-pipe structure.

  As shown in FIGS. 1 to 3, the foundation through-pipe structure according to this embodiment is a concrete foundation 1 of a building, a sheath pipe 2, an insertion pipe 3, a lid body 4, a sheet-shaped ant-proof member 5, and a ring-shaped structure. Main members such as an ant-proof member 6, an underfloor pipe 7, and an outdoor drain pipe 8 are provided.

  As shown in FIG. 1, the sheath tube 2 is composed of a container-like length made of a synthetic resin or a tube portion 2a and a tubular width or tube portion 2b. The pipe portion 2a is integrated by being plugged and connected to the connection port 2c on the lower side surface. The sheath pipe 2 is embedded in the concrete foundation 1 so as to penetrate the concrete foundation 1, and the vertical length and the opening of the upper end of the pipe portion 2a are exposed on the horizontal surface 1a on the indoor side of the concrete foundation 1, and The opening at the downstream end of the sheath 2b is exposed on the side surface 1b on the outdoor side of the concrete foundation 1.

  The sheath pipe 2 is inserted with a synthetic resin insertion pipe 3. The insertion pipe 3 is composed of two 90-degree bent elbows 3a and 3b and a horizontal pipe 3c. The two 90-degree bent elbows 3a and 3b are inserted into connecting ports facing vertically above and below. Further, the upstream end of the horizontal tube 3c is plugged and connected to the connection port at the downstream end of the lower elbow 3b. The upper 90-degree bent elbow 3a protrudes above the indoor-side surface 1a of the concrete foundation 1, and is connected to the connecting port at the upstream end of the protruding 90-degree bent elbow 3a. Side ends are plugged in and connected. Further, the downstream end of the horizontal pipe 3c is connected to the upstream end of the outdoor drain pipe 8 through a straight pipe joint 3e.

  The synthetic resin lid 4 (which closes the gap between the insertion pipe 3 and the elbow 3a of the insertion pipe 3 at the upper end opening at the opening end on the indoor side of the sheath pipe 2, that is, the upper end opening of the vertical section and the pipe portion 2a ( A cover body 4) having a through hole through which the elbow 3a is bent 90 degrees is attached, and the upper surface of the cover body 4 and the indoor side surface 1a of the concrete foundation 1 are substantially flush with each other. As shown in FIGS. 1 and 2, the sheath pipe from the indoor-side surface 1 a of the concrete foundation 1 so that the sheet-shaped ant protection member 5 covers the boundary portion between the sheath pipe 2 and the surrounding concrete foundation 1. The two lids 4 are arranged in close contact with each other.

  This sheet-shaped ant protection member 5 is obtained by laminating and integrating a physical ant protection layer 5a that cannot be eaten by a termite and an adhesive ant protection layer 5b containing an ant protection agent. The sheet-shaped ant protection member 5 is firmly adhered from the indoor side surface 1 a of the concrete foundation 1 to the lid body 4 of the sheath 2 by the lower adhesive ant protection layer 5 b. Therefore, termites enter the room from the boundary portion between the sheath tube 2 and the concrete foundation 1 through the space between the ant protection member 5 and the concrete foundation surface 1a and between the ant protection member 5 and the lid body 4. Can be surely prevented by the adhesive ant-repellent layer 5b which is in close contact with each other, and the termite ant breaks the ant-preventive member 5 and penetrates into the indoors reliably by the upper physical ant-repellent layer 5a. can do.

  In addition, while termites erode the adhesive ant protection layer 5b, it passes through between the ant protection member 5 and the concrete foundation surface 1a and between the ant protection member 5 and the lid 4 from the end of the ant protection member 5 indoors. In order to more reliably prevent the entry, the adhesive ant barrier layer 5b is a physical ant barrier layer 5a that cannot be eaten by termites like the sheet-like ant barrier member 5 shown in FIG. In addition, as shown in FIG. 6B, the thickness of the end portion of the adhesive ant protection layer 5b is gradually reduced to physically The gap between the end of the ant-proof layer 5a and the concrete foundation surface 1a (or the lid) may be eliminated, or the gap may be small enough that termites cannot pass through.

The adhesive ant-proof layer 5b contains an ant-proofing agent (for example, boric acid, a boric acid derivative, a boric acid compound, or a pyrethroid agent typified by insecticidal chrysanthemum) and reacts with the concrete foundation surface 1a to be integrated. It is preferable to form with a non-vulcanization type adhesive plastic body. As a typical example of such a non-vulcanized adhesive plastic body, a butyl recycled rubber obtained by regenerating butyl rubber, which is a rubber-like copolymer of isobutene and isoprene having adhesiveness with concrete, is used as a main component. The main component is a polymer obtained by blending one or two or more of natural rubber, synthetic rubber such as natural rubber, styrene butadiene rubber, acrylonitrile rubber, etc., tackifier, reinforcing material, filler, softener, Examples thereof include a non-vulcanized adhesive plastic body obtained by mixing and molding an anti-aging agent. When the adhesive ant-proof layer 5b is formed of the above-mentioned non-vulcanized adhesive plastic body containing an ant-proofing agent, the adhesive ant-proof layer 5b reacts and integrates with the concrete foundation surface 1a, and the sheet-shaped ant-proof member 5 becomes concrete. Since it does not peel from the foundation surface 1a, it is possible to more reliably prevent termites from entering between the sheet-like ant-proof member 5 and the concrete foundation surface 1a, and a non-vulcanized adhesive plastic body. Is excellent in adhesion to the lid 4 made of synthetic resin, so that it is possible to reliably prevent termites from entering between the sheet-shaped ant protection member 5 and the lid 4.
Of course, the adhesive ant-proof layer 5b may be formed of a sealing material or an adhesive containing an ant-proofing agent.

  The thickness of the adhesive ant proof layer 5b is not particularly limited, but considering the adhesion and adhesive strength depending on the laying area with the concrete foundation surface 1a and the lid 4, it is preferably 1 mm or more. Considering that it tries to break through and enter, it is better that the thickness is 2 mm or more because it is better. It should be noted that the upper limit of the thickness of the adhesive ant protection layer 5a is about 5 mm, and even if the thickness is increased further, the material is wasted.

  The physical ant barrier layer 5a on the upper side of the sheet-shaped ant barrier member 5 is a layer that cannot be eaten by termites, and is, for example, a synthetic rubber sheet having a hardness (type A durometer hardness according to JIS K 6253) of 40 or more. It is preferable to form. When the physical ant barrier layer 5a of such a synthetic rubber sheet is provided, the thickness is preferably about 1 to 5 mm, particularly about 3 mm. The physical ant barrier layer 5a may be formed of a metal sheet or a synthetic resin sheet that cannot be eaten by a termite, or a mesh metal sheet that cannot be penetrated by a termite. In consideration of the handleability of the member 5, sticking workability, etc., it is best to form the synthetic rubber sheet.

  In this embodiment, as shown in FIGS. 1 and 2, the sheet-shaped ant protection member 5 has a considerably larger area than the lid body 4 in which the through-hole 5 c in which the elbow 3 a protrudes by 90 degrees of the insertion pipe 3 protrudes is formed. A large square sheet-shaped ant-proof member is used, but the planar shape and size of the sheet-shaped ant-proof member 5 are the length of the sheath tube 2 and the boundary portion between the tube portion 2a and the surrounding concrete foundation 1 ( It is not particularly limited as long as it has a planar shape and size that can cover the boundary portion of the concrete foundation surface 1a. For example, a desired planar shape and size such as a similar shape that is slightly larger than the lid 4 It can be done. However, it is considered to surely prevent termites from entering the indoors between the sheet-shaped ant protection member 5 and the concrete foundation surface 1a and between the sheet-shaped ant protection member 5 and the lid 4. Then, the planar shape and size of the sheet-like ant protection member 5 are the shortest distance from the boundary part to the end of the sheet-like ant prevention member 5 on the concrete foundation 1 side, and the sheet-like ant prevention member from the boundary part. It is important that the shortest distance to the end of the lid 5 on the side of the cover 5 is at least 50 mm or more, preferably 80 mm or more, and more preferably 100 mm or more.

  As shown in FIGS. 1 and 3, a ring-shaped rust prevention member 6 that also serves as a sealing packing is fitted on the outer peripheral surface of the straight pipe joint 3 e that connects the horizontal pipe 3 c of the insertion pipe 3 and the outdoor side drain pipe 8. Are bonded and fixed with an adhesive or the like. This ring-shaped ant-proof member 6 is a physical ant-proof member made of synthetic rubber or synthetic resin having a hardness of 40 or more, which cannot be eaten by termites, and is located in the vicinity of the side and the downstream opening of the pipe portion 2b. , The gap between the horizontal portion and the pipe portion 2 b and the straight pipe joint 3 e at the downstream end of the insertion pipe 3 is closed by the ring-shaped ant protection member 6. Therefore, the intrusion of termites from the gap between the sheath pipe 2 and the insertion pipe 3 can be prevented by the ring-shaped ant protection member 6.

  As described above, the foundation through-pipe structure according to this embodiment is a sheet-shaped ant barrier member 5 in which a physical ant barrier layer 5a and an adhesive ant barrier layer 5b are vertically stacked. When covering the boundary portion with the sheath 2a, the lid 4 is attached to the opening of the vertical portion or the upper end of the tubular portion 2a, so that the sheet-shaped ant protection member 5 is covered with the adhesive ant protection layer 5b. The body 4 and the concrete foundation surface 1a can be firmly and firmly adhered to each other, and the boundary portion between the concrete foundation 1 and the sheath pipe 2 and the pipe portion 2a can be reliably closed with the sheet-shaped ant protection member 5. Therefore, the termite passes through between the concrete foundation surface 1a and the sheet-shaped ant protection member 5 and between the lid 4 and the sheet-shaped ant protection member 5 from the boundary portion between the concrete foundation 1 and the vertical or pipe portion 2a. Or under the floor From or entering the underfloor beating eat physical termite layer 5a of Joboari member 5 can be reliably prevented. And since the space | interval of the sheath 2 and the gap | interval of the pipe part 2b and the straight pipe joint 3e of the penetration piping 3c are also plugged up with the ring-shaped ant prevention member 6, the invasion of the termite from this gap | interval can be prevented reliably.

  Moreover, the foundation through-pipe structure of this embodiment is such that the adhesive ant barrier layer 5b of the sheet-like ant barrier member 5 is brought into close contact with the concrete base surface 1a to the lid body 4 so that the concrete foundation 1 and the vertical or pipe portion are in contact with each other. Since the operation of covering the boundary portion with 2a with the sheet-shaped ant protection member 5 is easy, the workability is good, and the sheet-shaped ant protection member 5 and the lid 4 are not flat and bulky. As shown in FIG. 4, by setting the height of the upstream side end of the elbow 3a of the insertion pipe 3 protruding from the lid body 4 and the sheet-shaped ant protection member 5 (height from the concrete foundation surface 1a) to be low. The height from the foundation surface of the downstream end of the underfloor pipe 7 connected to the connection port at the upstream end of the 90 degree large elbow 3a can be lowered to give a sufficient flow gradient to the underfloor pipe 7. it can.

  In addition, although the foundation through-surface piping structure of this embodiment has the concrete foundation surface 1a and the cover body 4 substantially flush, even when there is a step between the concrete foundation surface 1a and the cover body 4. Needless to say, the sheet-shaped ant protection member 5 can be stably and firmly adhered to the concrete foundation surface 1a and the lid 4 by the adhesive ant protection layer 5b along the steps.

  FIG. 4 is an enlarged partial cross-sectional view of a foundation through piping structure according to another embodiment of the present invention.

In the basic through-pipe structure of this embodiment, the end portion of the sheet-shaped ant protection member 5 on the lid 4 side is extended, and the adhesive ant proof layer 5b of the extension end portion 5d is bent by 90 degrees of the insertion pipe 3 at an elbow. It is closely attached to the outer peripheral surface of 3a. Such a basic through-piping structure can be constructed because the ant proof member 5 is in the form of a sheet.
Since the other structure is the same as that of the basic through piping structure of the embodiment shown in FIGS. 1 to 3, the same reference numerals are given to the same members in FIG.

  As described above, when the extended end portion 5d of the sheet-shaped ant protection member 5 is brought into close contact with the outer peripheral surface of the elbow 3a which is bent 90 degrees, termites break through the ring-shaped ant protection member 6 and penetrate the sheath tube 2. Even if a situation that enters the gap between the pipe 3 occurs, the termite is bent 90 degrees by 90 degrees and enters the interior through the elbow 3a. There exists an advantage which can prevent reliably by the part 5d.

  FIG. 5 is an enlarged partial cross-sectional view of a basic through piping structure according to still another embodiment of the present invention.

The basic through-pipe structure of this embodiment has a 90 ° large bent elbow 3a of the insertion pipe 3 by the bellows-shaped ant-proof member 50 made of the synthetic rubber or synthetic resin having a hardness of 40 or more that cannot be eaten by termites. A portion protruding from the sheet-shaped ant protection member 5 is surrounded and covered, and the adhesive ant protection layers 5b and 5b formed on the inner surfaces of both ends of the bellows-shaped ant protection member 50 are bent by 90 degrees and the outer peripheral surface of the elbow 3a. In addition, the lower end of the bellows-shaped ant protection member 50 is closely attached to the sheet-like ant protection member 5 without a gap. In such an accordion tube-shaped ant protection member 50, it is preferable to increase the adhesive strength by setting the width dimension of the adhesive ant protection layers 5b, 5b to at least 50 mm. Further, the adhesive ant barrier layer 5 b on the inner surface of the lower end portion of the bellows-shaped ant barrier member 50 may be brought into close contact with the upper surface of the sheet-like ant barrier member 5.
Since the other structure is the same as that of the basic through piping structure of the embodiment shown in FIGS. 1 to 3, the same reference numerals are given to the same members in FIG.

  In the basic through-pipe structure shown in FIG. 5, the termite further bends the cover 4 and the elbow 90 degrees even if the termite enters the gap between the sheath pipe 2 and the insertion pipe 3. There is an advantage that the bellows tube-shaped ant-proof member 50 can surely prevent intrusion into the room through the space 3a.

DESCRIPTION OF SYMBOLS 1 Concrete foundation 1a Indoor side surface of concrete foundation 2 Sheath pipe 2a Vertical length and pipe part 2b Horizontal length and pipe part 3 Insertion piping 3a, 3b 90 degree large bending elbow 3c Horizontal pipe 3e Straight pipe joint 4 Saddle pipe cover 5 Sheet Ant-proof member 5a Physical ant-proof layer 5b Adhesive ant-proof layer 5d Extension end 6 Ring-shaped ant-proof member 7 Underfloor piping 8 Outdoor drainage pipe 50 Bellows tube-shaped ant-proof member

Claims (3)

  A sheath pipe embedded in the foundation so as to penetrate the foundation of the building, an insertion pipe inserted through the sheath pipe, and a lid that closes a gap between the insertion pipe at the open end on the indoor side of the sheath pipe, Cover the gap between the sheath pipe and the insertion pipe with an ant protection member, and cover the boundary between the foundation and the sheath pipe from the surface of the foundation indoor side to the sheath pipe cover. A basic through-pipe structure characterized by being placed in close contact.   The sheet-shaped ant protection member is a laminate of a physical ant protection layer and an adhesive ant protection layer containing an ant protection agent. The basic through-pipe structure according to claim 1, wherein the basic through-pipe structure is in close contact with the body.   The basic through-pipe structure according to claim 2, wherein the physical ant barrier layer is a synthetic rubber sheet having a hardness of 40 or more.

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