JP2015222009A - Piping structure and piping method of foundation part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping structure of a foundation part with a termite-proof property.SOLUTION: A piping structure C has a sheath pipe 2 penetrating a concrete 10, which constitutes a foundation part of a building, and a piping 31 to be inserted into the sheath pipe 2. An inner termite-proof member treated with anti-termite agent is set at least between an inner surface of the sheath pipe 2 and an outer surface of the piping 31. The inner termite-proof member is a termite-proof packing 50 containing anti-termite component. The termite-proof packing 50 is formed into a circular ring made of elastic material. A taper surface is formed on an outer surface of the termite-proof packing 50, which is inserted between the piping 31 and the sheath pipe 2.

Description

  The present invention relates to a piping structure for a foundation and a piping method for the foundation.

  Conventionally, in detached houses, drainage pipes have been buried directly in the concrete of the foundation of buildings in order to drain from drainage devices such as toilets and sinks to the outdoor housing mass.

  On the other hand, the evaluation method standard for easy maintenance performance of the “Housing Quality Assurance Promotion Law” enforced in June 2000 states that “exclusive pipes are not contained in concrete except for the penetration of walls, floors, columns or beams. It is stipulated that “in a detached house, underground pipes are not embedded in the building structure, under the slab or in the solid foundation of the concrete”.

  In order to solve such a problem, for example, in Patent Document 1, the sheath tube is provided with a horizontal portion and a rising portion, and the gap between the sheath tube and the flexible tube is waterproof at the outer end of the sheath tube. A drain pipe structure for a building is disclosed.

  According to this configuration, the above-described evaluation method standard is satisfied, and the drainage pipe can be inspected and cleaned, partially repaired, the entire drainage pipe replaced, and the like without damaging the house.

Japanese Patent No. 3595761

  However, the structure of Patent Document 1 described above does not give special consideration to the termite-preventing performance that prevents the intrusion of termites while achieving easy maintenance and updating.

  Then, this invention aims at providing the piping structure of the foundation part which has ant-proof performance, and the piping method of a foundation part.

In order to achieve the above object, the piping structure of the foundation of the present invention is
A foundation pipe structure comprising a sheath pipe penetrating the concrete constituting the foundation of the building, and a pipe inserted through the sheath pipe;
At least an ant-proofing ant-proof member is installed between the inner surface of the sheath and the outer surface of the pipe,
The inner ant member is an ant proof packing containing an ant component,
The ant-proof packing is formed in an annular shape with an elastic material, and has a tapered surface on the outer surface, and is pushed between the pipe and the sheath pipe.

  At least an ant-proofing ant-proof member was installed between the inner surface of the sheath and the outer surface of the pipe. For this reason, an intrusion of termites is prevented between the inner surface of the sheath and the outer surface of the piping by the inner ant protection member. Accordingly, termites can be prevented from entering the building through the piping structure of the foundation. At this time, the inner ant protection member was an ant proof packing containing an ant protection component. In this way, the ant-proof packing containing the ant-proof component is fitted as the inner ant-proof member, so that the gap between the inner surface of the sheath pipe and the outer surface of the pipe is high by a simple method substantially the same as before. Ant proof performance can be obtained. Furthermore, the ant-proof packing was formed in an annular shape from an elastic material, and a tapered surface was provided on the outer surface. Thereby, the ant proof packing can be easily pushed between the pipe and the sheath pipe.

It is sectional drawing explaining the structure of the piping structure of the base part of Example 1. FIG. It is a block diagram explaining the structure of the whole piping system. It is a disassembled perspective view which decomposes | disassembles and demonstrates the structure of the piping structure of the base part of Example 1. FIG. It is sectional drawing explaining the structure of an ant-proof packing. (A) is a case where a step is not provided on the inner surface, and (b) is a case where a step is provided on the inner surface. It is sectional drawing explaining the structure of the piping structure of the base part of Example 2. FIG. It is sectional drawing explaining the structure of the piping structure of the base part of Example 3. FIG. It is the side view which showed the state which affixed the ant-proof tape to the sheath pipe | tube. It is the side view which showed the state which peeled off the one part release paper of the ant-proof tape. It is a perspective view explaining the whole drain pipe composition of Example 4. It is sectional drawing explaining the structure of the adhesion receptacle of the drain pipe of Example 4. FIG. (A) is a case of a square section, and (b) is a case of a tapered section.

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

  First, the whole structure of the piping system S provided with the piping structure C of the foundation part of this invention is demonstrated using FIG.

  The piping system S of the present invention is configured as a drainage system, and as shown in FIG. 2, drainage appliances 71 that generate drainage such as toilets, vanities, bathrooms, washing machine pans, kitchen sinks, etc. A drain pipe 72 that connects the drainage device 71 and the residential land mass 73, a residential land mass 73 that is connected to the drainage device via the drainage pipe 72 and receives drainage, and a downstream side of the residential land mass 73. And a drain pipe 75 connecting the residential land mass 73 and the public mass 74.

  The residential land mass 73 is installed for the purpose of inspection and cleaning of the drain pipes 72 and 75, and is formed in a container shape by resin, concrete, etc., and the starting point of the drain pipes 72 and 75 buried in the ground, It is arranged at a branch point, junction point, bending point, head point, etc.

  In addition to inspection and cleaning, the public mass 74 is installed to connect the public sewer and the drainage system in the house. The public mass 74 is formed in a container shape with resin, concrete, etc., and downstream of the most downstream residential mass 73. Arranged on the side.

  And the drainage pipe 72 as piping of a present Example is embed | buried in the concrete which comprises the foundation part of a building, and is penetrated as shown in FIGS. The drainage pipe 72 and the like form a basic pipe structure C.

  The foundation pipe structure C includes the sheath pipe 2 and the drain pipe 72 as a pipe, the ant protection tape 40 as an outer ant protection member installed on the outer surface of the sheath pipe 2, and the inner surface of the sheath pipe 2. And an ant-proof packing 50 as an internal ant-proof member installed between the outer surfaces of the drain pipe 72.

  This sheath tube 2 is formed in a cylindrical shape bent in a gentle L shape in the middle by a synthetic resin such as vinyl chloride, and has a horizontal portion 21 and a rising portion 22 rising from the horizontal portion 21 at an angle of 45 degrees. Are embedded so as to penetrate through the concrete 10 constituting the foundation.

  In addition, when the slab of the solid foundation is thick, the sheath pipe 2 is integrally provided with a horizontal portion 21 and a rising portion (not shown) that rises substantially vertically from the horizontal portion 21 and has a substantially right-angled L shape. It may be bent.

  Further, a drain pipe 72 as a pipe includes a drain pipe 31 which is a flexible pipe (flexible pipe) having a smooth inner surface, which is a portion inserted through the bent sheath 2, and a vinyl chloride resin drain pipe which is the other portion. 32, 33.

  The drain pipe 31 which is a flexible pipe includes a long cylindrical base portion made of polyethylene resin and having flexibility, and a reinforcing rib portion formed on the outer surface, and has a predetermined bend. It has both performance (flexibility) and predetermined strength performance. In addition, PVC pipe adhesive receptacles are integrated at both ends.

  Thus, since the sheath pipe 2 and the drain pipe 31 are separated, at the time of maintenance such as replacement of the drain pipe 31, only the drain pipe 31 inserted inside is removed without removing the sheath pipe 2. Can be replaced.

  Furthermore, the ant-proof tape 40 as an outer ant-proof member is a thin plate-like non-vulcanized adhesive plastic body using butyl rubber, and is affixed to the outer periphery in the vicinity of the end portion of the sheath 2 under the floor. .

  The ant-proof tape 40 has a property of adhering to the ready-mixed concrete as the ready-mixed hydration reaction proceeds. That is, the active group of butyl rubber and the metal oxide ion in the cement undergo an ionic reaction and chemically bond.

  In addition, since the ant-proof tape 40 uses rubber as a base material, it has shock-absorbing property and follow-up property to expansion and contraction caused by concrete temperature change.

  In addition, a small amount (for example, 0.4 to 1.0 wt%) of the ant-proofing agent is added to the ant-proofing tape 40 of the present invention as the ant-proofing treatment. As the termite-proofing agent, any inorganic compound such as boric acid, organochlorine, carbamate, organophosphorus, synthetic pyreth, neonicotinoid, etc. may be used as long as they do not hate termites.

  Further, the ant-proof packing 50 as an inner ant-proof member is formed in an annular shape by a synthetic rubber elastic material such as SBR, and is fitted into the end portion of the sheath 2 on the outdoor side.

  Further, as shown in FIG. 4A, the ant-proof packing 50 is formed so that the outer diameter is slightly larger than the inner diameter of the sheath tube 2 so as to fit between the sheath tube 2 and the drain tube 31 without a gap. In addition, a tapered surface 501 is provided on the outer surface, and the inner diameter is slightly smaller than the outer diameter of the drain pipe 31. That is, the sheath 2 is processed by blow molding, and the variation in the inner diameter dimension is large. Therefore, the variation is absorbed by the tapered surface 501.

  The ant-proof packing 50 is added with an ant-proofing agent (0.4 wt%), which is a component that termites such as boric acid dislike as an ant-proofing treatment.

  The cross-sectional shape of the ant-proof packing 50 is a stepped portion on the inner surface 502 so as to come into contact with the end surface of the drain pipe 31 inserted into the sheath pipe 2 as in the ant-proof packing 50A of FIG. If the inner surface 504 having a large inner diameter is formed by providing the 503, the tube center of the horizontal portion of the sheath tube 2 and the tube center of the drain tube 31 coincide with each other, and the drain tube 31 can be easily inserted into the sheath tube 2. Aqueousness is also ensured.

  Next, the piping method of the foundation part of a present Example is demonstrated.

  First, the ant-proof tape 40 as an ant-proofing ant-proof member subjected to the ant-proofing treatment is pasted in advance on the outer surface of the sheath 2 near the lower end of the floor (outer-proofing process). That is, the release paper of the ant-proof tape 40 is peeled off, and the exposed adhesive surface is brought into close contact with the entire circumference of the sheath 2 without a gap.

  Then, the sheath 2 is installed using the holder 23 in the formwork of the concrete 10 which comprises a foundation part (sheath tube installation process). That is, the reinforcing bar fitting part 231 of the holder 23 is fitted into the reinforcing bar 11 arranged in the concrete 10, and the sheath 2 is fitted into the holding part 232 to fix the position.

  Next, the concrete 10 in a state before flowing and hardening is placed in a formwork in which the sheath 2 is disposed (concrete placing step). At this time, the ant-proof tape 40 chemically reacts with the concrete 10 to be integrated.

  Thereafter, the concrete 10 is hardened with the passage of time, and the sheath 2 is completely fixed in a state of being embedded in the concrete 10. At the time of curing, the concrete 10 expands due to heat of hydration, and gradually heats and cools and contracts.

  And the drain pipe 31 as piping is inserted in the sheath pipe 2 (pipe insertion process). That is, the drainage pipe 31 having flexibility is inserted into the bent sheath pipe 2 while being bent, and communicated from the lower floor side to the outdoor side.

  Finally, at substantially the same time as the pipe insertion step, an ant-proof packing 50 as an ant-proof inner ant-proof member is installed between the inner surface of the sheath pipe 2 and the outer surface of the drain pipe 31 as the pipe (inner ant-proof ant). Process). That is, the annular ant seal packing 50 is pushed into the gap formed in an annular shape between the outdoor side end portion of the drain pipe 31 and the end portion of the sheath pipe 2 while being elastically deformed. Then, the other drainage pipes 32 and 33 are connected to both sides to complete the drainage system.

  As described above, the foundation pipe construction method is executed by performing the outer ant protection process, the sheath pipe installation process, the concrete placing process, the pipe insertion process, and the inner ant protection process.

  Next, the effect of the piping structure C of the foundation part of a present Example is demonstrated.

  (1) Thus, the piping structure C of the foundation part of the present invention is a drainage pipe as a pipe 2 that is embedded in and penetrates the concrete 10 that constitutes the foundation part of the building, and a pipe that is inserted through the sheath pipe 2. A tube 31.

  Thus, since the sheath pipe 2 and the drain pipe 31 are separated, at the time of maintenance such as replacement of the drain pipe 31, only the drain pipe 31 inserted inside is removed without removing the sheath pipe 2. Can be replaced.

  And in the piping structure C of the foundation part of this invention, while the outer surface of the sheath pipe 2 is provided with the outer surface of the sheath pipe 2, the outer surface of the sheath pipe 2 and the outer surface of the drain pipe 31 as piping are installed. In the meantime, an ant-proofing ant member subjected to ant-proofing treatment is installed.

  For this reason, the entry of termites is prevented between the outer surface of the sheath tube 2 and the concrete 10 by an outer ant member, and the termite member is interposed between the inner surface of the sheath tube 2 and the outer surface of the drain pipe 31 as a pipe. Intrusion is prevented. Therefore, it is possible to prevent termites from entering the building through the piping structure C of the foundation.

  In addition, since the inner ant-proof member has not only ant-proofing properties but also water-stopping properties, it is possible to prevent intrusion of rainwater and the like while preventing the entry of termites by the inner ant-proofing member.

  (2) In addition, an ant protection tape 40 containing an ant protection component is attached to the outer surface of the sheath tube 2 as an outer protection ant member, so that the outer surface of the sheath tube 2 and the concrete 10 can be formed by a simple method. High ant protection performance can be obtained.

  In addition, if the ant-proof tape 40 is formed so as to be elastically deformable, it can follow the expansion and contraction of the concrete 10, and therefore the concrete 10 and the sheath tube 2 that may be generated by the expansion and contraction. This prevents the occurrence of a gap, and can further improve the ant-proofing performance.

  (3) Furthermore, between the inner surface of the sheath tube 2 and the outer surface of the drain pipe 31 as a pipe, an ant proof packing 50 containing an ant component as an inner ant member is fitted. A high ant-proof performance can be obtained by closing the space between the inner surface of the sheath 2 and the outer surface of the drain pipe 31 as a pipe by a similar simple method.

  That is, conventionally, a waterproof packing has been installed between the inner surface of the sheath tube 2 and the outer surface of the drain pipe 31. By adding an ant-proofing performance to this waterproof packing, the structure and process substantially the same as conventional ones. The water stop performance and ant proof performance can be obtained.

  (4) And the pipe construction method of the foundation part of the present invention includes an outer ant protection process in which an outer ant protection member is provided on the outer surface of the sheath tube 2, and the sheath tube 2 is placed in the formwork of the concrete 10. Saddle pipe installation process, concrete placing process for placing concrete 10 in a mold, pipe insertion process for inserting drain pipe 31 as a pipe into sheath pipe 2, and the inner surface and pipe of sheath pipe 2 And an inner ant-proofing step in which an inner ant-proof member subjected to an ant-proofing treatment is installed between the outer surfaces of the drain pipe 31.

  For this reason, the ant proof performance and the maintenance are maintained by substantially the same process as the conventional piping method of the foundation part in which the sheath pipe 2 is embedded in the concrete 10 of the foundation part of the building and the drain pipe 31 is inserted into the sheath pipe 2. It is possible to construct a piping structure for the foundation that has both manageability and performance.

  That is, in addition to the conventional foundation pipe construction method, only the outer ant protection process and the inner ant prevention process are added, so that the foundation pipe structure having the ant protection performance in addition to the easy maintenance performance is obtained.

  In this case, the outer ant protection process can be performed in advance, and the inner ant protection process is substantially the same as the conventional water stop process (water stop packing). The construction period will not be delayed.

  Hereinafter, a basic piping structure C1 different from the above embodiment will be described with reference to FIG. The description of the same or equivalent parts as described in the above embodiment will be given with the same reference numerals.

  First, the structure will be described. The basic pipe structure C1 of this embodiment includes a sheath pipe 2 and a water supply pipe 34 serving as a pipe, and an anti-rust tape 40 serving as an outer guard member installed on the outer surface of the sheath pipe 2. And between the water supply pipe 34 at the end of the sheath pipe 2 on the outdoor side, and the ant sealant 60 as an internal ant protection member installed between the inner surface of the sheath pipe 2 and the outer surface of the water supply pipe 34. A water-stop packing 51 for water.

  The water supply pipe 34 as the pipe is formed in a long cylindrical shape by a flexible synthetic resin such as cross-linked polyethylene, and generally has a smaller diameter than the drain pipe 31 of the first embodiment. And it has the characteristics that it can be used stably in a high temperature region, has excellent corrosion resistance, is hygienic, and can be bent without a joint.

  Moreover, the ant-proof sealant 60 as an inner ant-proof member is formed of a synthetic resin such as urethane or silicon, and is located under the floor (back of the backup material 61 installed on the bottom of the sheath 2). It is filled inside.

  In addition, to this ant sealant 60, an ant preventive agent, which is a component that termites such as boric acid dislike, is added as an ant preventive treatment.

  The backup material 61 is installed to close the gap between the sheath pipe 2 and the water supply pipe 34 and fill the ant sealant 60 with synthetic rubber, synthetic resin, soft foamed urethane or the like. It has an annular shape.

  Next, the piping method of the foundation part of a present Example is demonstrated.

  In the same manner as in the first embodiment, the pipe construction method of the foundation part of the present embodiment is to perform the outer ant ant process, the sheath pipe installation process, the concrete placing process, the pipe insertion process, and the inner ant process. Executed.

  Among these, in the inner ant-preventing step, at substantially the same time as the pipe insertion step, an ant-proof sealing material 60 as an inner ant-preventing member subjected to ant-proofing is provided between the inner surface of the sheath tube 2 and the outer surface of the water supply pipe 34 as the piping. Install (internal ant process). That is, after the backup material 61 is fitted into the water supply pipe 34 disposed in the sheath pipe 2 to close the gap, the fluid ant sealant 60 is filled from below the floor.

  Next, the effect of the piping structure C1 of the foundation part of a present Example is demonstrated.

  (1) In the piping structure C1 of the basic part of the present embodiment, an ant-proof sealing material 60 containing an ant-proof component as an internal ant-proof member is provided between the inner surface of the sheath pipe 2 and the outer surface of the water supply pipe 34 as a pipe. Is filled with a gap between the inner surface of the sheath tube 2 and the outer surface of the water supply pipe 34, even when the diameters of the sheath pipe 2 and the water supply tube 34 are greatly different or when a plurality of water supply tubes 34 are inserted. Ant proof performance can be obtained.

  That is, when the diameters of the sheath pipe 2 and the water supply pipe 34 are greatly different, the water stop packing 51 made of synthetic rubber is deformed, and therefore, the water supply pipe 34 is not held in a predetermined position by the water stop packing 51 alone. It becomes difficult, and it becomes difficult to give uniform ant protection performance to the entire circumference.

  Therefore, by substantially sealing the gap with the backup material 61 and then filling the ant sealant 60, it is possible to impart substantially uniform ant protection performance to the entire circumference.

  In this case, since the hardened ant sealant 60 is supported in contact with the water supply pipe 34 in a wide area, the ant sealant 60 itself is not deformed to impair the antproof performance.

  In addition, since the water-stopping packing 51 is installed in the vicinity of the end portion on the outdoor side of the sheath 2 separately from the ant-proof sealing material 60, the water-stopping packing 51 and the ant-proof sealing material 60 are used to Can water and ant protection. Moreover, you may use what added the ant preventive agent to the water stop packing 51. FIG.

  In addition, since it is as substantially the same as the said Example about another structure and an effect, description is abbreviate | omitted.

  Hereinafter, the piping structure C2 of the foundation part different from the said Example is demonstrated using FIG. The description of the same or equivalent parts as described in the above embodiment will be given with the same reference numerals.

  First, the structure will be described. As shown in FIG. 6, the pipe structure C2 of the basic part of the present embodiment includes a sheath pipe 2, a water supply pipe 34 as a pipe, and an outer ant protection member to which an ant protection agent is added. Ant protection tape 40, a holder 23 for fixing the sheath pipe 2 from the outside of the ant protection tape 40, an ant protection sealant 60 as an inner ant protection member to which an ant protection agent is added, and a water supply pipe 34 And an elastic tape 62 wound around the outer surface.

  The water supply pipe 34 as this pipe is configured in a double structure by a PE pipe 34b formed in a long cylindrical shape by a cross-linked polyethylene resin and a heat insulating material 34a such as polyethylene foam for keeping the PE pipe 34b warm. Yes.

  The heat insulating material 34a is partially cut off at a position corresponding to the vicinity of the end face on the outdoor side of the sheath tube 2, and the portion where the PE tube 34b is exposed is filled with an ant sealant 60 described later. ing.

  The ant-proof tape 40 as an outer ant-proof member is a thin plate-like non-vulcanized adhesive plastic body using butyl rubber, and is placed on the outer periphery of the end portion of the sheath 2 below the floor on the concrete 10. Are pasted so as to have a portion 40c protruding from 10 mm to 20 mm.

  In addition, as shown in FIG. 7, this ant-proof tape 40 is provided with perforations 40a (intermittent cuts at regular intervals) on a single-sided or double-sided release paper, or with fine scratches in a certain direction. For example, it is easy to tear in a certain direction.

  In this embodiment, the position where the ant protection tape 40 is affixed and the position of the holder 23 for fixing overlap, and the holder 23 is fitted over the release paper.

  Further, the ant sealant 60 as an inner ant member is formed of a synthetic resin such as urethane or silicon, and the heat insulating material 34a is removed in the vicinity of the end face of the sheath 2 on the outdoor side. The part is filled.

  Therefore, the ant sealant 60 covers the exposed peripheral surface of the PE tube 34b and the end surface from which the heat insulating material 34a has been removed, and covers and covers a very thin gap between the heat insulating material 34a and the PE tube 34b. ing.

  Further, the elastic tape 62 is formed of a material in which the base material portion is elastically deformed, and an adhesive is applied to one surface thereof and is wound around the outer surface of the heat insulating material 34a of the water supply pipe 34.

  The outer diameter of the elastic tape 62 wound around the water supply pipe 34 is slightly larger than the inner diameter of the sheath tube 2 and is fitted into the sheath tube 2 in a state of being elastically deformed by being pressed.

  Next, the piping method of the foundation part of a present Example is demonstrated.

  As in the first and second embodiments, the pipe construction method for the foundation portion of the present embodiment constructs the outer ant protection process, the sheath pipe installation process, the concrete placing process, the pipe insertion process, and the inner ant protection process. To be executed.

  Among these, in the concrete placing process, it is necessary to peel off the release paper on the surface of the ant-proof tape 40 affixed to the sheath tube 2 in advance.

  However, in this embodiment, the position of the holder 23 overlaps with the position of the ant-proof tape 40, and the holder 23 is fitted over the release paper, and therefore the entire release paper cannot be peeled off as a whole.

  Therefore, in this embodiment, as shown in FIG. 7, since the release paper is provided with perforations 40a in the circumferential direction, the release paper can be partially removed by dividing it at the position of the perforations 40a. it can.

  That is, as shown in FIG. 8, the release paper on the lower side of the holder 23 is first peeled off, and then the remaining release paper on the upper side is peeled off, so that the release paper can be peeled even if it overlaps with the holder 23.

  In addition, in the pipe insertion process, an elastic tape 62 that is elastically deformed is wound around the heat insulating material 34a of the water supply pipe 34 in the vicinity of the end face on the outdoor side of the sheath 2 and the heat insulating material 34a is partially removed. Is done. Then, the water supply pipe 34 wound with the elastic tape 62 is pushed into the sheath pipe 2 while being pressed from the end portion on the outdoor side.

  Finally, in the inner ant process, the portion between the inner surface of the sheath tube 2 and the outer surface of the PE tube 34b, from which the heat insulating material 34a is removed, covers the removed portion from the outdoor side. An ant-proof sealant 60 is filled.

  Next, the effect of the piping structure C2 of the foundation part of a present Example is demonstrated.

  (1) In the piping structure C2 of the basic part of the present embodiment, the release paper on at least one side of the ant protection tape 40 is provided with the perforation 40a or is easily formed in a certain direction, so that the ant protection tape 40 is formed. Even if the positions of the holder 23 overlap, the release paper on both sides of the holder 23 can be divided and peeled off.

  (2) And, the ant protection tape 40 as the outer ant protection member is disposed so as to have the portion 40c protruding on the concrete 10 constituting the foundation portion, so that the ant protection tape 40 is protected even after the concrete 10 is placed. It can be confirmed that the ant tape 40 is installed.

  In other words, ant-proofing treatment is difficult to manage because it is shared by multiple contractors such as foundation builder, waterworks builder, ant-proofing builder, etc. depending on the work process. Even if it can be managed reliably.

  (3) In addition, an elastic tape 62 is wound around the outer surface of the water supply pipe 34 as a pipe and pushed into the sheath pipe 2 to be fixed, and between the inner surface of the sheath pipe 2 and the outer surface of the water supply pipe 34. Is filled with an ant-proof sealing material 60 containing an ant-proof component as an inner ant-proof member, so that any diameter of the water supply pipe 34 is fixed in the sheath pipe 2 in a state where the water-proof pipe 34 is fixed. The material 60 can be filled.

  That is, in general, the ant-proofing treatment for water supply and hot water supply pipes has many pipe diameters and types of heat insulating materials, and therefore, when a regular packing or the like is prepared, the efficiency becomes low from the viewpoint of cost and workability.

  Therefore, if the elastic tape 62 is wound around the pipe instead of the regular packing and is pushed into the sheath tube 2 and fixed, the diameter of the sheath tube 2 and the diameter of the piping can be adjusted by adjusting the number of windings of the elastic tape 62. The pipe can be fixed according to the conditions.

  (4) Further, when the PE pipe 34b is covered with the heat insulating material 34a, the heat insulating material 34a is partially removed in the vicinity of the end face on the outdoor side of the sheath tube 2, and an ant-proof sealing is applied to the removed portion. By filling the material 60, it is possible to prevent termites from entering from the gap between the PE pipe 34b and the heat insulating material 34a.

  That is, in the vicinity of the end face of the sheath tube 2 on the outdoor side, termite enters from the outside through the gap between the heat insulating material 34a and the PE pipe 34b by cutting out the heat insulating material 34a and performing an ant protection treatment with the ant sealing material 60. Can be prevented.

  Hereinafter, the drain receiving joint 37 of the drain pipe having a structure different from that of the above embodiment will be described with reference to FIGS. The description of the same or equivalent parts as described in the above embodiment will be given with the same reference numerals.

  First, the structure will be described. The pipe structure C of the base portion of this embodiment includes a sheath pipe 2, a drain pipe 72, an ant-proof tape 40, and an ant-proof packing 50, as in FIG. Yes.

  Further, the drain pipe 72 as a pipe is constituted by a drain pipe 31 which is a flexible pipe (flexible pipe) whose inner surface is smooth and vinyl chloride resin drain pipes 32 and 33 which are other portions.

  Further, as shown in FIG. 9, a drain pipe 31 which is a flexible pipe having a smooth inner surface is made of polyethylene resin and has a long cylindrical base portion 35 having flexibility, and a reinforcing pipe formed on the outer surface. Rib portions 36,... Are integrally provided, and cylindrical adhesive receptacles 37, 37 are provided at both ends.

  In addition, as shown in FIG. 9, one end of the adhesive receiving port 37 of the present embodiment is provided with four quadrangular cross-section ribs 37 a that are intermittently formed at a predetermined height along the circumferential direction of the outer peripheral surface. Yes.

  As shown in FIG. 10 (a), the rib 37a is formed integrally with the adhesive receiving port 37 in such a shape that a short column having a square cross section is bent in an arc shape along the outer peripheral surface. It protrudes from the outer peripheral surface of the mouth 37 by a predetermined height.

  Moreover, the protrusion height of the rib 37a should just be less than the half of the difference of the internal diameter (diameter) of the sheath pipe 2, and the outer diameter (diameter) of the drain pipe 31, and the penetration property to the sheath pipe 2 of the drain pipe 31 is sufficient. It is set to an appropriate height that improves the wearability of the ant-proof packing 50 while improving the quality. For example, when the inner diameter of the sheath tube is 100 mm, the protruding height of the rib 37a is preferably about 2.5 mm.

  Moreover, as a cross-sectional shape of a rib, as shown in FIG.10 (b), you may form in the taper-shaped cross section where height decreases gradually in an end surface direction. The rib 37b having the tapered cross section keeps a gap of a predetermined height between the sheath pipe 2 and the drain pipe 31 at the flat section, while making the drain pipe 31 into the sheath pipe 2 good at the taper section. It is formed as follows.

  The ribs 37 a and 37 b are abutted against the outdoor side (end face side) in a state where an annular ant seal packing 50 is fitted, and the inner peripheral surface of the sheath tube 2 and the outer periphery of the drain pipe 31. An annular gap formed between the surfaces is closed.

  Next, the effect of the adhesion receiving port 37 of the drain pipe of the present embodiment will be described.

  (1) A drain pipe 31 as a pipe of the present embodiment includes cylindrical adhesive receiving ports 37, 37 integrated at both ends, and one of the adhesive receiving ports 37 on the outdoor side has A rib 37a having a predetermined height is intermittently formed along the circumferential direction of the outer peripheral surface.

  By forming the rib 37a in this way, the drainage pipe 31 can be easily inserted into the sheath pipe 2 and the ant seal packing 50 can be easily attached.

  That is, if the diameter of the drain pipe 31 which is a flexible pipe with a smooth inner surface is increased, the stiffness of the drain pipe 31 itself (propensity to become straight) becomes stronger, so that it is pressed against the sheath pipe 2 to cause friction during insertion. Resistance increases.

  In addition, in a state where the drain pipe 31 is inserted into the sheath pipe 2, the drain pipe 31 is forcibly positioned outside the bent portion, and is positioned below the inside of the sheath pipe 2 at the outdoor end. It becomes.

  For this reason, the ant proof packing 50 is fitted while lifting the drain pipe 31 toward the center by hand, and it takes time to mount the ant proof packing 50.

  Therefore, by providing ribs 37a intermittently at the adhesive receiving port 37, the contact area with respect to the sheath 2 is suppressed to reduce friction, while the adhesive receiving port 37 is floated at the end on the outdoor side and the center of the sheath 2 This makes it easy to mount the ant proof packing 50.

  (2) In addition to the rectangular cross-section, the rib shape is a tapered cross-section whose height decreases toward the end face, so that it is an obstacle even when the drain pipe 31 is inserted into the sheath pipe 2. Since an object is not caught, the insertion property when the rib 37b is provided can be improved.

  The embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to the present invention. included.

  For example, in the said Example 1, although the case where the ant-proof packing 50 was arrange | positioned at the edge part of the outdoor side was demonstrated, it is not limited to this, It is arrange | positioned at the edge part of a floor underside, Alternatively, it may be arranged in the middle portion of the sheath 2 such as the horizontal portion 21 and the rising portion 22.

  Further, in the second embodiment, the case where the ant-proof sealant 60 is filled in the end portion on the lower floor side is described. However, the present invention is not limited to this and is filled in the end portion on the outdoor side. It may be filled in the middle part.

  Furthermore, in the said Example 2, although the case where the water stop packing 51 was installed separately from the ant sealant 60 was demonstrated, it is not limited to this, The waterproof performance is given to the ant sealant 60. In such a case, the water stop packing 51 may not be disposed.

  And in the said Example 1, although the drainage pipe 31 as piping demonstrated the case where it had flexibility, it is not limited to this, Both the sheath 2 and the drainage pipe 31 are bent with a fixed curvature. If it is formed in a circular arc shape, an inflexible vinyl chloride resin or the like can be used as the pipe.

  Moreover, although the said Example 1 demonstrated the case where one place of the ant-proof packing 50 was installed in the edge part of the outdoor side, it is not limited to this, You may install the ant-proof packing 50 in multiple places. .

2 sheath pipe 10 concrete 23 holder 31 drain pipe (pipe)
34 Water supply pipe (pipe)
34a Thermal insulation material 34b PE pipe 37 Adhesion receiving port 37a, 37b Rib 40 Ant protection tape
40a perforation 50 ant seal (inner ant member)
60 Anti-ant sealing material (internal ant member)
61 Backup material 62 Elastic tape 501 Taper surface C, C1, C2 Foundation piping structure

Claims (6)

A foundation pipe structure comprising a sheath pipe penetrating the concrete constituting the foundation of the building, and a pipe inserted through the sheath pipe;
At least an ant-proofing ant-proof member is installed between the inner surface of the sheath and the outer surface of the pipe,
The inner ant member is an ant proof packing containing an ant component,
The base part piping structure characterized in that the ant-proof packing is formed in an annular shape with an elastic material, and has a tapered surface on the outer surface, and is pushed between the pipe and the sheath pipe. In the piping structure of the foundation part according to claim 1,
A pipe structure of a base part, wherein the sheath pipe is formed by blow molding. A foundation pipe structure comprising a sheath pipe penetrating the concrete constituting the foundation of the building, and a pipe inserted through the sheath pipe;
At least an ant-proofing ant-proof member is installed between the inner surface of the sheath and the outer surface of the pipe,
The inner ant-proof member is an ant-proof sealing material containing an ant-proofing component, filled in the indoor side of a backup material installed between the inner surface of the sheath tube and the outer surface of the pipe. The piping structure of the foundation to be used. In the piping structure of the foundation part according to claim 3,
The piping structure of the base part, wherein the piping is a flexible water supply pipe. A foundation pipe structure comprising a sheath pipe penetrating the concrete constituting the foundation of the building, and a pipe inserted through the sheath pipe;
The sheath tube is fixed to the concrete by two holders in a gentle L shape or a substantially right angle L shape,
The pipe is fixed to the sheath pipe by an elastic tape wound around the outer surface,
A pipe structure of a foundation part, wherein the pipe is a flexible double-structure water supply pipe whose outer side is covered with a heat insulating material. In the piping structure of the foundation part according to claim 5,
A pipe structure of a base part, wherein an ant-proof sealant containing an ant-proof component is filled in the vicinity of an end face on the outdoor side of the sheath pipe.