JP2005314976A - Sheath pipe device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheath pipe device easy in construction for inserting a drain pipe outside a building from the inside of the building. <P>SOLUTION: A downstream end side opening part 28 of a joint body 21 is largely opened. The downstream end side of an inserting pipe 41 inserted from the upper end side of a sheath pipe body 11, can be projected outside from the opening part 28 of the joint body 21 in a state of fitting a socket 23 of the joint body 21 to the downstream end of the sheath pipe body 11. An elbow body 45 can be connected to the downstream end of the inserting pipe 41 outside the opening part 28 of the joint body 21. The elbow body 45 adhered and fixed to the downstream end of the inserting pipe 41 can be stored in the opening part 28 of the joint body 21. The inserting pipe 41 is not required to be curved and bent. The inserting pipe 41 is not required to be formed as a bellows pipe and a flexible pipe. The inserting pipe 41 of a straight pipe, the elbow body 45, a deriving pipe 48, an elbow body 53 and an introducing pipe 56 can be used with a simple and inexpensive constitution. Piping work of the drain pipe 3 is facilitated. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sheath pipe device for inserting a drain pipe from the inside of a building to the outside of the building.

In recent years, when the drainage pipe in a building is repaired according to the evaluation method standard concerning the maintenance management performance of the “Housing Quality Assurance Promotion Law”, it is required to repair the building without breaking it. Therefore, when taking out the drain pipe in this building outside the building, a sheath pipe is embedded in the foundation of the building, and the drain pipe is inserted into this sheath pipe. Therefore, as this type of sheath tube device, a configuration is known in which a drain tube inserted into the sheath tube is a flexible tube that can be bent (see, for example, Patent Document 1).
JP 2002-115294 A (page 4-6 and FIG. 1)

  However, in the above-described sheath tube device, a flexible tube that can be bent is more expensive than a tube that does not bend, so it is preferable to use a straight tube that does not bend. In addition, when a straight pipe that does not bend is used as the drain pipe, the drain pipe must be connected at the bent or curved part of the sheath pipe unless the sheath pipe is inserted into the straight pipe. Therefore, the piping work becomes very difficult.

  Furthermore, when this sheath pipe is made into a straight pipe, this sheath pipe will incline and protrude to the foundation on the outdoor side of the building. In this case, it is not easy for an operator to cut the sheath or tube that protrudes from the foundation on the outdoor side of the building in accordance with the inclined surface. It is also possible to connect a straight pipe to this bent joint by installing a bent joint that matches the inclination angle of the sheath pipe on the foundation surface on the outdoor side. In this case as well, the drain pipe is curved inside the sheath pipe. Since it must be a possible bent joint, there is a problem that construction is not easy.

  This invention is made | formed in view of such a point, and it aims at providing the ease of construction and a pipe apparatus.

  The sheath tube device according to claim 1 is a sheath tube device for inserting a drain pipe from the inside of the building to the outside of the building, and a cylindrical sheath body through which the drain pipe can be inserted, and a downstream end of the sheath body A joint provided with an opening connected to the receptacle, provided on the opposite side of the receptacle, and having an opening that is inclined with respect to the receptacle and is open to allow the drainage pipe inserted into the sheath body to be inserted therethrough; Is provided.

  And the receptacle of a coupling body is connected to the downstream end of a cylindrical sheath pipe | tube main body. At this time, the opening of the joint body is opened so that the drain pipe inserted from the upstream end of the pipe main body is inclined with respect to the receiving port. Therefore, the downstream side of the drain pipe inserted from the upstream end of the sheath body can protrude from the opening of the joint body. Therefore, there is no need to bend the drain pipe and the sheath main body, and the work of inserting the drain pipe from the inside of the building to the outside of the building becomes easy.

  The sheath pipe device according to claim 2 is the sheath tube device according to claim 1, wherein the joint body includes a flange portion that is provided at a peripheral edge of the opening portion and is in contact with a formwork for forming a foundation of the building. It is what.

  And since the flange part contact | abutted to the formwork for forming the foundation of a building was provided in the peripheral edge of the opening part of a joint body, this joint part and type | mold are made to contact | abut this flange part to a formwork. The frame can be more securely adhered. Thereby, the penetration | invasion of the concrete liquid into a sheath pipe apparatus can be prevented.

  The sheath tube device according to claim 3 is the sheath tube device according to claim 1 or 2, wherein the sheath tube device is attached to the opening portion of the joint body, and has elasticity to block and hold the drain pipe inserted through the joint body in the opening portion. It has the elastic member which has.

  And since the elastic member which obstruct | occludes and hold | maintains the drain pipe inserted in the joint body in the opening part was attached to the opening part of the joint body, the clearance gap formed between this joint body and a drain pipe is made by the elasticity of an elastic member. It can be securely closed. Therefore, it is possible to reliably prevent the invasion of harmful insects and the like from the outside of the building through the gap between the joint body and the drain pipe.

  The sheath tube device according to claim 4 is the sheath tube device according to any one of claims 1 to 3, wherein the opening of the joint body is formed in an oval shape having a longitudinal direction along the vertical direction. is there.

  And, by forming the opening of the joint body in an oval shape having a longitudinal direction along the vertical direction, the drain pipe inserted into the sheath pipe body from this opening without excessively increasing the opening. It can be inserted. Therefore, since the opening area of this opening can be made smaller, this opening can be made smaller.

  According to the sheath pipe device according to claim 1, when the joint opening of the joint body is connected to the downstream end of the sheath body, the opening of the joint body inclined with respect to the receptacle is formed from the upstream end of the sheath body. Since the inserted drainage pipe is open so that it can be inserted, the downstream side of the drainage pipe can be protruded from this opening, so that it is not necessary to bend the drainage pipe and the sheath pipe body. Can be easily inserted into the outside of the building.

  According to the sheath pipe device of the second aspect, the joint body and the formwork can be more closely adhered to each other by bringing the flange portion into contact with the formwork for forming the foundation of the building.

  According to the sheath pipe device of the third aspect, since the elastic member attached to the opening of the joint body closes and holds the drain pipe inserted through the joint body, the gap between the joint body and the drain pipe is formed. Since it can be reliably closed and held by the elasticity of the elastic member, it is possible to reliably prevent the entry of harmful insects and the like from the outside of the building into the building through the gap between the joint body and the drain pipe.

  According to the sheath pipe device of the fourth aspect, by forming the opening of the joint body in an oval shape having a longitudinal direction along the vertical direction, the opening can be formed from the opening without making the opening too large. Since the drainage pipe inserted into the sheath body can be inserted, the opening area of the opening can be made smaller, and the opening can be made smaller.

  Hereinafter, the configuration of an embodiment of the sheath tube device of the present invention will be described with reference to FIGS.

  In FIG. 1 to FIG. 6, reference numeral 1 denotes a sheath pipe device. It is a drainage pipe device connected to a sewage basin as a drainage channel. That is, the sheath pipe device 1 allows the cylindrical drainage pipe 3 to be inserted from the inside of the house 2 to the outside of the house 2. In other words, the sheath pipe device 1 has a sheath structure in which a drain pipe 3 that passes through a foundation 4 as a foundation portion of the house 2 and is taken out from the indoor floor under the house 2 to the outside is inserted.

  In addition, a bottom surface portion 5 that is an upper surface portion as a substantially horizontal lower floor constituting a part of the foundation 4 of the housing 2 is formed under the floor of the housing 2. Further, a rising portion 6 is formed as a vertical portion as a side portion that rises from the basic slab of the bottom surface portion 5 and serves as a foundation 4 such as a pillar of the house 2. The foundation 4 composed of the bottom surface portion 5 and the rising portion 6 is placed on the ground surface with concrete. Furthermore, the sheath pipe device 1 is located below the ground surface from the inside of the foundation 4 of the house 2 to the outside underground area of the foundation 4, that is, from the bottom part 5 of the foundation 4 of the house 2 to the outside of the rising part 6 of the foundation 4. It is attached in a state of penetrating in a straight line.

  The sheath tube device 1 includes a cylindrical sheath body 11 that is inserted obliquely from the bottom surface portion 5 of the foundation 4 into the rising portion 6. The sheath tube body 11 is constituted by a straight tube such as a VU tube having a nominal diameter of 100 mm, for example. That is, the sheath body 11 is made of a synthetic resin such as a vinyl chloride resin. Further, the upstream end of the sheath body 11 is inclined from the bottom surface portion 5 of the foundation 4, for example, at an angle of approximately 20 ° to 45 °, and upwards than the upper end surface of the bottom surface portion 5 of the foundation 4. Projects upward. The upper end surface 12 on the upstream side of the sheath main body 11 is formed by being cut obliquely along the upper end surface of the bottom surface portion 5 of the foundation 4. That is, the sheath body 11 is inserted into the bottom surface portion 5 from the upper end surface of the bottom surface portion 5 of the foundation 4 while being inclined at an angle of approximately 20 ° to 45 °. It is buried in.

  Furthermore, the lower end surface 13 on the downstream side of the sheath main body 11 is formed by cutting in a direction orthogonal to the axial direction of the sheath main body 11. That is, the lower end surface of the sheath main body 11 is cut along the radial direction of the sheath main body 11. The sheath main body 11 is located in the bottom surface portion 5 of the foundation 4 and is embedded in the bottom surface portion 5.

  A substantially cylindrical joint body 21 is fitted and connected to the downstream end of the sheath body 11. As shown in FIGS. 1 to 12, the joint body 21 includes a long cylindrical tubular portion 22 having a longitudinal direction along the vertical direction of the foundation 4 to which the joint body 21 is attached. The cylindrical portion 22 is embedded in the rising portion 6 while being inserted into the rising portion 6 from the outside of the rising portion 6 of the foundation 4. A receiving port 23 is provided at the upstream end, which is one end along the axial direction of the cylindrical portion 22, and is fitted to the downstream end, which is one end of the sheath body 11. In other words, the receiving port 23 is bonded and connected to the downstream end of the sheath body 11. Further, the receiving port 23 is opened in a circular cross section having an inner diameter dimension substantially equal to the outer diameter dimension of the sheath body 11.

  Further, a step-shaped locking step portion 24 that locks the lower end surface of the sheath 11 that is fitted inside the receiving port 23 is formed along the circumferential direction on the inner edge of the opening of the receiving port 23. Yes. Here, the cylindrical portion 22 inside the locking step portion 24 is formed to have an inner diameter dimension substantially equal to the inner diameter dimension of the sheath body 11. That is, the inner peripheral surface of the cylindrical portion 22 inside the locking step portion 24 is formed so as to be flush with the inner peripheral surface of the sheath main body 11 fitted in the receiving port 23. .

  Here, the upstream portion of the lower peripheral surface portion 26 of the cylindrical portion 22 is located upstream of the cylindrical portion 22 with respect to the upper peripheral surface portion 25 of the cylindrical portion 22. It forms in the taper shape which inclined below toward the downstream side. A bent bottom portion 27 formed in parallel to the upper peripheral surface portion 25 of the cylindrical portion 22 is formed in the downstream portion of the lower peripheral surface portion 26 of the cylindrical portion 22. The bent bottom portion 27 is formed to be flush with the peripheral surface portion 26 in a state where the bent bottom portion 27 is smoothly bent with respect to the upstream portion of the peripheral surface portion 26 on the lower side of the cylindrical portion 22.

  An opening 28 that is bent and inclined with respect to the receiving port 23 is formed at the downstream end of the cylindrical portion 22 opposite to the receiving port 23. Here, the opening 28 is a drainage pipe inserted from the upstream end side of the sheath body 11 in a state where the downstream end of the sheath body 11 is fitted and connected to the receiving port 23 of the joint body 21. 3 is open so that it can be inserted outside the downstream end of the cylindrical portion 22. In other words, the opening 28 opens the downstream end of the joint body 21 so that the downstream end of the drain pipe 3 can pass through the drain pipe 3 inserted from the upper end side of the sheath body 11. It is a thing.

  Therefore, the opening 28 is formed in an oval shape having a longitudinal direction along the vertical direction of the cylindrical portion 22 as shown in FIG. In other words, the opening 28 is formed in an arc shape in which the upper side and the lower side of the opening 28 are semicircular. Further, both side portions of the opening portion 28 are formed in a straight line shape that connects and connects the semicircular upper side and the lower side of the opening portion 28 in a straight line.

  Further, an annular flange portion 29 protruding in the circumferential direction toward the radial direction of the opening portion 28 is integrally provided on the outer peripheral edge of the opening portion 28. The flange portion 29 is embedded in the outer surface of the rising portion 6 while the upper end side of the joint body 21 is inserted from the external position of the rising portion 6 of the foundation 4, and the rising portion of the foundation 4 outside the house 2. It is attached in a state of being locked to the outer surface of the portion 6. That is, the flange portion 29 is brought into contact with a mold frame (not shown) for forming the foundation 4 before the foundation 4 is driven, and closes the gap between the mold frame and the joint body 21. . For this reason, since this flange part 29 makes the joint body 21 and a formwork closely_contact | adhere, it can prevent the penetration | invasion in the joint body 21 of the sheath apparatus by the concrete liquid poured in in this formwork.

  Further, the flange portion 29 has an axial direction with a predetermined angle with respect to the opening direction of the receiving port 23. The flange portion 29 is formed with an insertion hole 31 formed at the center of the upper portion, the lower portion, and both side portions of the flange portion 29. Each of these insertion holes 31 penetrates along the thickness direction of the flange portion 29. If necessary, the flange portion 29 is fixed to the foundation forming form by a fixing member (not shown) such as a nail or a screw. Let

  Here, in a state where the flange portion 29 is fixed to the mold, the axial direction of the cylindrical portion 22 is inclined upward from the downstream side toward the upstream side with respect to the axial direction of the flange portion 29. In this state, each of the upper peripheral surface portion 25 and the bent step portion 27 of the cylindrical portion 22 has a longitudinal direction along the axial direction of the flange portion 29. Further, the lower peripheral surface portion 26 of the cylindrical portion 22 is inclined upward from the downstream side toward the upstream side with respect to the axial direction of the flange portion 29. Therefore, the receiving port 23 of the cylindrical portion 22 opens in a direction inclined upward with respect to the axial direction of the flange portion 29.

  On the other hand, an insertion pipe 41, which is a cylindrical first drain pipe, which is a small diameter pipe having a smaller diameter than the sheath main body 11, is detachably inserted into the upstream end side of the sheath main body 11. In other words, the insertion tube 41 has a joint body 21 attached to the downstream end of the sheath body 11, and the sheath body 11 and the joint body 21 are embedded in the foundation 4 of the house 2. 11 has been inserted. The insertion tube 41 is constituted by a straight tube made of a synthetic resin such as vinyl chloride resin.

  Further, the insertion tube 41 is configured by a straight tube such as a VU tube having an outer diameter dimension that can be inserted into the sheath body 11, that is, a nominal diameter of 75 mm. At this time, the diameter of the sheath body 11 is one size higher than the diameter of the insertion tube 41. Furthermore, each of the upstream end 42 and the downstream end 43 which are both ends along the axial direction of the insertion tube 41 is configured by cutting the peripheral surface portion 44 of the insertion tube 41 along the radial direction. In other words, each of the upstream end and the downstream end is formed by cutting the peripheral surface portion 44 flatly along a direction orthogonal to the axial direction of the peripheral surface portion 44 of the insertion tube 41.

  At this time, the insertion tube 41 has the joint body 21 attached to the downstream end of the sheath body 11, and the sheath body 11 and the joint body 21 are embedded in the foundation 4 of the house 2. When the insertion tube 41 is inserted from the upstream end of the main body 11, the outer diameter dimension is such that the downstream end of the insertion tube 41 can protrude from the opening portion 28 of the joint body 21. Then, the downstream end of the insertion tube 41 is externally fitted and fixed to the fitting portion 46 on the upstream end side which is one end side of an elbow body 45 as a cylindrical joint body having a bent axial direction. . Here, the elbow body 45 has a central portion so that the axial direction of the fitting portion 46 on the upstream end side and the axial direction of the fitting portion 47 on the downstream end side intersect at an angle of about 20 ° to 25 °. It is bent.

  That is, the elbow body 45 has a bending angle substantially equal to the inclination angle of the joint body 21 so that the elbow body 45 can be inserted into the joint body 21 from the opening 28 of the joint body 21. Further, the upstream end side which is one end portion of the outlet pipe 48 which is a cylindrical second drain pipe is internally fitted and fixed to the fitting part 47 on the downstream end side of the elbow body 45. Here, the elbow body 45 is inclined at an angle such that the outlet pipe 48 fitted to the fitting portion 47 on the downstream end side of the elbow body 45 can be installed substantially horizontally with respect to the ground surface. ing. Further, the outlet pipe 48 is made of a synthetic resin such as vinyl chloride resin, and is constituted by a straight pipe having a nominal diameter similar to that of the insertion pipe 41. The downstream end of the outlet pipe 48 is connected to a sewage basin embedded in the residential land of the house 2.

  A substantially annular elastic member 51 as an elastic holding member is attached to the gap formed between the elbow body 45 and the joint body 21. The elastic member 51 is formed in an oval shape that is slightly larger than the opening 28 of the joint body 21. That is, the elastic member 51 is formed so as to be fitted in the opening 28 of the joint body 21 and to seal the inside of the opening 28 in the circumferential direction. In other words, the elastic member 51 is configured to block and hold the elbow body 45 inserted through the joint body 21 in the opening 28 of the joint body 21. Therefore, the elastic member 51 hermetically holds between the joint body 21 and the elbow body 45 inserted through the inner peripheral surface of the joint body 21.

  Further, a circular insertion opening 52 through which the fitting portion 47 on the downstream end side of the elbow body 45 can be inserted is formed at the center of the elastic member 51. The insertion opening 52 penetrates in the thickness direction of the elastic member 51. The insertion opening 52 has an inner diameter that is slightly smaller than the outer diameter of the fitting portion 47 on the downstream end side of the elbow body 45. That is, the insertion opening 52 can seal the outer peripheral surface of the fitting portion 47 on the downstream end side of the elbow body 45 in the circumferential direction in a state where the elbow body 45 is inserted through the insertion opening 52. Is formed.

  Further, the insertion opening 52 is an elbow body 45 connected to the insertion pipe 41 inserted from the upper end side of the sheath body 11 with the elastic member 51 fitted in the opening 28 of the joint body 21. It is provided in the position which can be inserted. That is, the insertion opening 52 is provided at a position through a predetermined gap along the longitudinal direction of the elastic member 51 from the center of the elastic member 51. Therefore, the insertion opening 52 is provided at a position eccentric with respect to the outer circumferential surface of the elastic member 51 in the longitudinal direction of the elastic member 51.

  On the other hand, the upstream end of the insertion tube 41 is externally fitted and fixed to a fitting portion 55 on the downstream end side of an elbow body 53 as a cylindrical joint body having a bent axial direction. Here, the elbow body 53 is configured in the same manner as the elbow body 45 attached to the downstream end of the insertion tube 41. Further, the downstream end side which is one end portion of the introduction pipe 56 which is a cylindrical third drain pipe is fitted and fixed to the fitting part 54 on the upstream end side of the elbow body 53. The introduction pipe 56 is configured in the same manner as each of the insertion pipe 41 and the outlet pipe 48. Further, the upstream end of the introduction pipe 56 is connected to a drainage facility such as a drain outlet in the house 2. Here, each of the insertion pipe 41, the elbow body 45, the outlet pipe 48, the elbow body 53, and the introduction pipe 56 constitutes a drain pipe 3 that is a drainage path.

  Next, a drain pipe construction method using the sheath pipe device of the above-described embodiment will be described.

  First, the downstream end of the sheath body 11 is fitted and fixed to the receiving port 23 of the joint body 21.

  After this, in the state before the foundation 4 of the house 2 is placed, the upstream part of the sheath body 11 protrudes from the upper end surface of the bottom part 5 of the foundation 4, and the opening 28 of the joint body 21 is located outside the house 2. The sheath body 11 and the joint body 21 are disposed so as to penetrate below the ground surface.

  At this time, the flange portion 29 of the joint body 21 is brought into contact with the mold frame for forming the foundation 4, and a nail or the like is inserted into each insertion hole 31 of the flange portion 29. To fix.

  Next, after closing the upper end surface 12 of the sheath body 11 and the opening 28 of the joint body 21 with closing means such as rags, caps, gum tape, etc., the concrete liquid is poured into the mold in this state. Place the foundation 4.

  Then, after removing the blocking means from the upper end surface 12 of the sheath body 11 and the opening 28 of the joint body 21, the insertion tube 41 is inserted from the upper end side of the sheath body 11, as shown in FIG. Let

  Next, as shown in FIG. 3, the lower end side of the insertion tube 41 is projected outward from the opening 28 of the joint body 21.

  In this state, as shown in FIG. 4, a fitting portion 46 on the upstream side of the elbow body 45 is externally fitted to the downstream end of the insertion tube 41 to be bonded and fixed.

  Thereafter, as shown in FIG. 5, the insertion opening 52 of the elastic member 51 is fitted into the fitting portion 47 on the downstream end side of the elbow body 45.

  In this state, as shown in FIG. 6, the insertion pipe 41 to which the elbow body 45 and the elastic member 51 are attached is moved to the upstream side of the sheath body 11, and the elastic member is placed in the opening 28 of the joint body 21. 51 is fitted and hermetically held to prevent the entry of pests such as earth and sand and white ants into the gap formed between the joint body 21 and the elbow body 45, and the fitting on the downstream side of the elbow body 45 The part 47 is positioned and fixed by being positioned substantially in the same plane as the opening 28 of the joint body 21. Then, the upper end side of the outlet pipe 48 is fitted inside and fixed to the fitting portion 47 on the downstream end side of the elbow body 45.

  Further, as shown in FIG. 1, after the fitting portion 55 on the downstream end side of the elbow body 53 is externally fitted to the upstream end 42 of the insertion tube 41 and bonded and fixed, the upstream end side of the elbow body 53 is then fixed. The downstream end side of the introduction pipe 56 is fitted into the fitting portion 54 and bonded and fixed.

  Thereafter, the upstream end side of the introduction pipe 56 is connected to a drain outlet of a drainage facility in the house 2, and the downstream end side of the lead-out pipe 48 is connected to an inlet of a sewage tank in the housing land of the house 2. Then, the piping work of the drain pipe 3 using the sheath pipe device 1 is completed.

  When it is necessary to replace the drain pipe 3 inserted through the sheath body 11 and the joint body 21 of the sheath pipe device 1, the drain pipe 3 is pulled from the sheath body 11 and the joint body 21. The drain pipe 3 is cut at a position where the drain pipe 3 can be pulled out. Specifically, the drain pipe 3 is cut at the elbow bodies 45 and 53 of the drain pipe 3 or at portions inside the elbow bodies 45 and 53.

  Thereafter, after the drain pipe 3 is pulled out and removed from the sheath main body 11 and the joint body 21, the sheath main body 11 and the joint body 21 are newly added according to the construction procedure when the drain pipe 3 is newly piped. The drainage pipe 3 is formed by inserting a proper drainage pipe 3.

  As described above, according to the one embodiment, the opening 28 on the downstream end side of the joint body 21 is greatly opened. As a result, the downstream end side of the insertion tube 41 inserted from the upper end side of the sheath body 11 is connected to the downstream end of the sheath body 21 with the receiving port 23 of the joint body 21 fitted to the downstream end of the sheath body 11. The elbow body 45 bonded and fixed to the downstream end of the insertion tube 41 can be inserted into the opening 28 of the joint body 21 and can be accommodated. Therefore, the elbow body 45 can be connected to the downstream end of the insertion tube 41 outside the opening 28 of the joint body 21, and the insertion tube 41 does not need to be bent or bent.

  As a result, there is no need for the insertion tube 41 to be a flexible bellows tube or flexible tube, which is a relatively expensive bendable tube, and it is simpler and relatively inexpensive than the bellows tube or flexible tube. Since the pipe insertion pipe 41, the elbow body 45, the outlet pipe 48, the elbow body 53, and the introduction pipe 56 are used, the piping of the drain pipe 3 can be made inexpensive. Further, the drain pipe 3 can be easily connected by connecting the drain pipe 3 through the foundation 4 from the house 2 to the outside of the house 2, that is, piping work. Therefore, the drainage equipment of the house 2 is connected to the upstream end of the introduction pipe 56 of the drainage pipe 3, and the downstream end of the outlet pipe 48 of the drainage pipe 3 is connected to the sewage basin, so that the drainage equipment of the house 2 is treated as sewage. Since it can be connected to the eaves, the drainage pipe of the house 2 can be easily formed.

  At this time, when the drainage facility of the house 2 is remodeled or changed by reforming, the drainage pipe 3 is cut inside the elbow bodies 45 and 53 of the drainage pipe 3, so that the drainage pipe 3 is covered with the sheath body 11 and the joint body. Can be pulled out from 21. Therefore, the drainage pipe 3 is pulled out from the sheath body 11 and the joint body 21, and the drainage pipe 3 is inserted into the sheath body 11 and the joint body 21. By connecting the facility to a sewage basin, the drainage pipe of the house 2 can be easily repaired and replaced.

  Further, flange portions 29 are provided on the outer peripheral edge of the opening portion 28 of the joint body 21 so that the flange portions 29 can be brought into contact with and locked to the formwork for forming the foundation 4. As a result, the flange portion 29 can be reliably closed between the opening portion 28 of the joint body 21 and the mold for forming the foundation 4 without a gap. Therefore, it is possible to reliably prevent the concrete sheath from entering the pipe body 11 and the joint body 21 from the gap between the opening 28 of the joint body 21 and the formwork for forming the foundation 4, and this joint body 21. Can be reliably locked to the formwork for forming the foundation 4.

  Further, an elastic member 51 is attached between the opening 28 of the joint body 21 and the elbow body 45, and formed between the opening 28 of the joint body 21 and the fitting portion 47 on the downstream end side of the elbow body 45. The gap to be closed is closed by the elastic member 51. As a result, it is possible to reliably prevent the invasion of pests such as earth and sand and white ants from the outside of the house 2 into the house 2 through the gap between the opening 28 of the joint body 21 and the elbow body 45. At this time, since the gap between the joint body 21 and the elbow body 45 is hermetically held by the elastic force of the elastic member 51, the gap between the joint body 21 and the elbow body 45 is securely closed and held. it can. Accordingly, it is possible to more reliably prevent entry of smaller earth and sand, water, pests and the like from the gap between the joint body 21 and the elbow body 45.

  Further, by forming the opening portion 28 of the joint body 21 into an oval shape having a longitudinal direction along the vertical direction, the sheath body 11 can be formed without excessively increasing the opening area of the opening portion 28 of the joint body 21. The insertion tube 41 inserted from the upstream end side can be inserted through the opening 28 of the joint body 21 and protruded. Therefore, since the opening area of the opening 28 can be efficiently reduced, the opening 28 can be further reduced in size, so that the joint body 21 in which the opening 28 is formed can be further reduced in size.

  Further, since the downstream end side of the outlet pipe 48 of the drainage pipe 3 is penetrated below the ground surface, each of the joint body 21 and the outlet pipe 48 is not exposed on the ground surface at a position outside the house 2. As a result, the drainage pipe line of the house 2 can be clearly formed, and the deterioration or damage of the drainage pipe line due to irradiation of ultraviolet rays or impact due to sunlight or the like can be prevented.

  In the embodiment described above, the elastic member 51 is fitted to the fitting portion 47 on the downstream end side of the elbow body 45, but the gap between the drain pipe 3 and the joint body 21 by the elastic member 51. If the elastic member 51 is fitted to the downstream end side of the insertion pipe 41 of the drainage pipe 3, the upstream end side of the outlet pipe 48, etc., the same action as in the above-described embodiment is possible. There is an effect.

It is explanatory sectional drawing which shows one Embodiment of the sheath tube apparatus of this invention. It is explanatory sectional drawing which shows the state which inserted the penetration pipe | tube from the upstream end side of the same sheath and the sheath of a pipe apparatus. It is explanatory sectional drawing which shows the state which made the downstream end side of an insertion tube protrude from the opening part of the joint body of a pipe apparatus same as the above. It is explanatory sectional drawing which shows the state which fitted the elbow body to the downstream end side of the insertion pipe | tube of a pipe apparatus same as the above. It is explanatory sectional drawing which shows the state which fitted the holding member to the downstream end side of the elbow body of a pipe apparatus same as the above. It is explanatory sectional drawing which shows the state which fitted the holding member of the same sheath and the pipe apparatus to the opening part of the coupling body, and was obstruct | occluded and hold | maintained. It is a top view which shows the joint body of a sheath apparatus same as the above. It is VIII-VIII sectional drawing in FIG. 7 which shows a joint body same as the above. It is a side view which shows a joint body same as the above. It is a bottom view which shows a joint body same as the above. It is a front view which shows a joint body same as the above. It is a rear view which shows a joint body same as the above.

Explanation of symbols

1 Saddle pipe device 2 Housing as a building
11 sheath tube body
21 Fitting body
23 Entrance
28 opening
29 Flange
41 Insertion pipe as drain pipe
51 Elastic member

Claims (4)

A sheath pipe device that allows a drain pipe to be inserted from the inside of the building to the outside of the building,
A cylindrical sheath body through which the drain pipe can be inserted;
A receptacle connected to the downstream end of the sheath main body, an opening provided on the opposite side of the receptacle, which is inclined with respect to the receptacle and is opened so that the drain pipe inserted into the sheath main body can be inserted. A sheath pipe device comprising: a joint body provided with a portion. The sheath pipe device according to claim 1, wherein the joint body includes a flange portion that is provided at a peripheral edge of the opening portion and is in contact with a formwork for forming a foundation of the building. The sheath pipe device according to claim 1 or 2, further comprising an elastic member attached to an opening of the joint body and having elasticity for closing and holding a drain pipe inserted through the joint body in the opening. The sheath pipe device according to any one of claims 1 to 3, wherein the opening of the joint body is formed in an oval shape having a longitudinal direction along the vertical direction.

Images