JP2022108407A - Protection cover connecter and accommodation structure of pipe joint - Google Patents

Abstract

To avoid a bent part of a pipe joint or a fluid pipe to be accommodated in an accommodation space of a protection cover connecter having a lid with a heat insulator provided on its inner face from interfering with the heat insulator.SOLUTION: A protection cover connecter C1 is composed of a base V1 and a lid L1 which are assembled to each other and form an accommodation space 10 of a pipe joint B1 connected to a fluid pipe P therein, in which a linear protection cover C0 forming an arrangement path of the fluid pipe P connected with the pipe joint B1 is connected to its own connection port 13. A heat insulator B1 having a removal-scheduled part 31, which is a removable portion of it, is provided at an inner face of the lid L1 which faces the accommodation space 10. The heat insulator B1 is pasted to the inner face of the lid L1 in a point excluding the removal-scheduled part 13. While the heat insulator B1 remains pasted to the inner face, the removal-scheduled part 13 can be removed.SELECTED DRAWING: Figure 13

Description

TECHNICAL FIELD The present invention relates to a protective cover connecting body for connecting long straight protective covers, and a housing structure for a pipe joint housed in a housing space inside the protective cover connecting body.

Fluid pipes such as water supply pipes and hot water supply pipes are mostly used with the exposed pipes closed and housed in a straight protective cover in order to prevent damage and ensure the appearance. Attached protective covers for connecting the straight protective covers are used for wall penetrating pipe portions and bent pipe portions inside and outside the wall in . In cold regions, a heat insulating material is provided on the inner surface of the lid constituting the straight protective cover in order to prevent the water flowing through the fluid pipe from freezing or the temperature of the hot water from decreasing. A heat insulating material may also be provided on the inner surface of the lid of the cover.

In order to connect a plurality of fluid pipes inside and outside the wall through-hole through the wall through-hole of the building wall, as shown in Patent Documents 1 and 2, a pipe joint housed in an attached protective cover is used. When a pipe joint is not used, the protruding portion of the fluid pipe to the outside of the wall is bent, and the bent portion is housed in the attached protective cover for piping. When a pipe joint is used, a specific one of a plurality of pipe connection portions of the pipe joint is used by entering a wall through-hole formed through the building wall. Depending on the height of the fluid pipe housed and protected by the protective cover, the position of the pipe joint in the vertical direction of the wall surface of the building may differ. On the other hand, the attached protective cover consists of a base fixed to the wall of the building and a cover covered by the base. Depending on the arrangement position of the pipe joint with respect to the vertical direction of the wall surface, the pipe joint may be arranged close to the ceiling wall of the lid. Further, even when the protruding portion of the fluid pipe to the outside of the wall is bent and the bent portion is accommodated in the attached protective cover, the bent portion may come close to or come into contact with the top wall of the lid constituting the attached protective cover. It may be piped as

Therefore, if the inner surface of the lid constituting the attached protective cover is provided with a heat insulating material, even if the bent portion of the pipe joint or the fluid pipe housed in the housing space approaches the top wall of the lid, If compression of the insulation can help, there is no problem or less. However, since the base of the attached protective cover and the lid are assembled by fitting together, if the pipe joint and the heat insulating material on the inner surface of the lid interfere with each other, the fitting between the base and the lid cannot be performed. Loosening or releasing the joint may cause the lid to come off from the base.

FIG. 26 of JP-A-2013-108538 FIG. 16 of JP 2012-219905 A

The present invention avoids interference between a pipe joint or a fluid pipe housed in a housing space of a protective cover connecting body having a lid with a heat insulating material provided on the inner surface thereof and the heat insulating material, and protects the protective cover connecting body. An object of the present invention is to maintain a good assembled state between a base and a lid.

A first aspect of the invention for solving the above-mentioned problems is a base and a lid that are assembled together to form a housing space for a fluid pipe forming a flow path or a pipe joint connected to the fluid pipe. A straight protective cover forming an installation path of a fluid pipe connected to the pipe joint is a protective cover connecting body connected to its own connection opening,
The lid includes a ceiling wall arranged opposite the base fixed to the wall surface, and a pair of side walls arranged opposite to each other with the ceiling wall side as a base end and the wall surface side as a tip,
A heat insulating material having a portion to be removed that is partially removable is provided on the inner surface of the lid facing the accommodation space,
The heat insulating material is attached to the inner surface of the lid body except for the portion to be removed, so that the portion to be removed can be removed while being attached to the inner surface.

According to the first aspect of the invention, since the base of the protective cover connecting body is fixed to the wall surface, the arrangement position of the housing space for the pipe joint formed by assembling the lid to the base is unchanged with respect to the wall surface. However, depending on the shape of the pipe joint itself or the arrangement height of the fluid pipe housed and protected by the straight protective cover, the pipe joint and the heat insulating material provided on the inner surface of the lid interfere with each other. The interference may have an adverse effect such as loosening or canceling the assembled state (fitted state) between the base and the lid. In the case of adversely affecting the assembled state, the portion of the heat insulating material provided on the inner surface of the lid that interferes with the pipe joint is set as a portion to be removed, and the portion to be removed is removed and missing, and the heat insulating material is removed. By arranging the interfering portion of the pipe joint in the missing portion, the interference can be avoided and a good assembled state between the base and the lid can be maintained. Further, even when the bent portion of the fluid pipe to the outside of the wall interferes with the heat insulating material provided on the inner surface of the ceiling wall of the lid, the fluid is Piping is carried out by inserting the bent portion of the pipe.

In addition, the portion of the heat insulating material that interferes with the pipe joint or the bent portion of the fluid pipe can be removed while the heat insulating material is provided on the inner surface of the lid. By simply assembling the lid body to the base fixed to the wall surface, the missing part of the heat insulating material and the bent part of the pipe joint or the fluid pipe are matched to the missing part of the heat insulating material. Since there is no need to align the position of the pipe joint or the interfering portion with the bent portion of the fluid pipe, the pipe construction can be performed quickly. In this respect, when the lid and the heat insulating material are separated, the position of the interference with the bent portion of the pipe joint or the fluid pipe is aligned with the removed portion of the heat insulating material, and the pipe joint is insulated. Since it is necessary to assemble the base fixed to the wall surface and the cover while the material is covered, the piping work becomes troublesome. In addition, when the heat insulating material provided on the inner surface of the lid does not interfere with the bent portion of the pipe joint or the fluid pipe arranged on the base, the removed missing portion of the heat insulating material is left as it is. The cover body may be attached to the base as it is.

According to the invention of claim 2, in the invention of claim 1, the boundary between the part to be removed of the heat insulating material and the main body of the heat insulating material, which is the remainder of the heat insulating material stuck to the inner surface of the lid body, It is characterized by having slits, perforations, or a closed loop breaking line that is a mixture of both.

According to the invention of claim 2, the portion to be removed can be easily removed using the break line. In particular, when perforations are included, since the main body of the heat insulating material excluding the part to be removed from the heat insulating material and the part to be removed are connected through the perforation, the part to be removed can be easily removed. not be separated or lost. Therefore, when the part to be removed needs to be removed, and if a perforation forming the breaking line is included, the part to be removed can be easily removed by breaking only the perforation.

The invention of claim 3 is the invention of claim 1 or 2, wherein the heat insulating material is provided along the inner surface of the top wall and the side walls, and the portion to be removed is a portion along the inner surface of the top wall. It is characterized in that it is provided only in

The portion of interference between the pipe joint housed in the housing space of the protective cover connecting body and the lid constituting the protective cover connecting body may be a side wall, but the interference may cause the base and the lid to interfere. In most cases, loosening or disengagement of the assembly occurs when the pipe joint interferes with the top wall of the lid. Therefore, as in the third aspect of the invention, the portion to be removed of the heat insulating material provided on the inner surface of the lid is limited to the portion along the top wall of the lid, thereby loosening the assembly between the base and the lid. or release can be prevented. Also, by removing only the portion of the heat insulating material along the top wall of the lid, the area of the heat insulating material to be removed can be minimized, and the reduction in the heat insulating effect of the heat insulating material can be minimized.

According to the invention of claim 4, the end portion of the straight protective cover that accommodates and protects the fluid pipe laid along the building wall is connected to a protective cover connecting body, and the protective cover connecting body is fixed to the building wall. A housing structure for a pipe joint that is composed of a base and a lid that is integrally attached to the base, is housed in an internal space formed by both, and is connected to the fluid pipe,
In the pipe joint, a curved flow path is formed inside by a plurality of pipe connection portions, and in a state in which a specific one of the pipe connection portions enters a wall through-hole formed in the building wall, the remaining two two pipe connections are connected to the fluid pipe at the wall surface of the building wall;
A part of the heat insulating material provided on the inner surface of the lid body is removed and missing, and a portion of the pipe joint on the opposite side of the building wall is partially inserted into the removed missing part of the heat insulating material. and

The pipe joint to which the housing structure of the invention of claim 4 is applied is a T-shaped pipe joint, also called a cheese joint, in which a specific one of a total of three pipe joints enters the wall through-hole, and the remaining pipe joints Two are arranged along the wall surface of the building wall and are each connected to a separate fluid pipe. Each of the two pipe connections arranged along the building wall is housed in the internal space of the protective cover connection body fixedly arranged on the wall surface so as to cover the wall through-hole. A heat insulating material is provided on the inner surface of the lid of the protective cover connecting body, and the arrangement position of the protective cover connecting body in a direction perpendicular to the wall surface of the pipe joint is determined by the shape of the pipe joint itself or a straight line. Depending on the arrangement height of the fluid pipe housed and protected by the protective cover, it may bite into and interfere with the heat insulating material provided on the inner surface of the top wall of the protective cover connecting body. The assembly between the base and the lid may be loosened or, in extreme cases, released. The interference can be avoided by inserting the interference portion on the opposite side into the removed missing portion of the heat insulating material.

According to the present invention, when a pipe joint is used, the shape of the pipe joint itself or the arrangement height of the fluid pipe housed and protected by the straight protective cover can be used to bend the fluid pipe without using the pipe joint. In this case, depending on the bent shape of the fluid pipe, the bent portion of the pipe joint or the fluid pipe accommodated and arranged in the housing space of the protective cover connecting body and the heat insulation provided on the inner surface of the lid of the protective cover connecting body The interference may have an adverse effect on the assembled state (fitted state) between the base and the lid, such as loosening and releasing. In such a case, the portion of the heat insulating material provided on the inner surface of the lid that interferes with the bent portion of the pipe joint or the fluid pipe is set as a portion to be removed, and the portion to be removed is removed to avoid the interference. Therefore, a good assembled state between the base and the lid can be maintained. In addition, the portion of the heat insulating material that interferes with the pipe joint can be removed while the heat insulating material is provided on the inner surface of the lid. By simply assembling the body to the base fixed to the wall surface, the removed missing part of the heat insulating material and the interfering part of the pipe joint are aligned, so that the removed missing part of the heat insulating material and the bent part of the pipe joint or fluid pipe are aligned. There is no need to align with the interfering part, and piping work can be done quickly.

By inserting a specific one in-wall pipe connection portion 22b out of the total three pipe connection portions 22a and 22b inside and outside the wall of the pipe joint A ₁ into the wall through-hole H, the inside and outside of the building wall W A total of three fluid pipes P are connected in , and the end of each straight protective cover C ₀ is connected by a protective cover connection body C ₁ housing the pipe joint A ₁ on the wall surface 1 is a cutaway perspective view; FIG. _1. It is _{a perspective view of the state of FIG. 1 in} which the lid body L1 is separated from the base V1 constituting the protective cover connector C1. Fig. 3 is an exploded perspective view showing the relationship between _a base V1 and _a lid body L1 that constitute _a protective cover connecting body C1 and _a pipe joint A1 housed in _a housing space 10 of the protective cover connecting body C1. FIG. 2 is a longitudinal sectional view of FIG. 1; 5 is a cross-sectional view along line X ₁ -X ₁ of FIG. 4; FIG. (a) and (b) are _a half cross _- sectional side view and a bottom view of the cover L1 of the protective cover connector C1. (a) is an enlarged cross-sectional view taken along line YY of FIG. 6(a), and (b) is an enlarged view of the portion indicated by S in (a). (a) and (b) are _a perspective view and a front view, respectively, of the heat insulating material B1. FIG. 10 is a perspective view showing a step of placing _a heat insulating material _{B1 on} the inner surface of the lid L1 of the protective cover connecting body C1; (a) to (c) are a perspective view, a bottom view, and a front view, respectively, showing a state in which the heat insulating material B ₁ is arranged on the inner surface of the cover L ₁ of the protective cover connector C ₁ . 4(a) and 4(b) are perspective views showing before and after removal of _a portion to be removed 31 of the heat insulating material _B1 adhered to the inner surface of the lid L1 of the protective cover connector C1, _respectively . FIG. 3 is a diagram corresponding to FIG. ₂ in the case of using a pipe joint A2; FIG. 5 is a view corresponding to FIG. 4 when using a pipe joint _A2 ; 14 is a cross-sectional view along line X ₂ -X ₂ of FIG. 13; FIG. (a) and (b) are partial cross-sectional views showing _a state _in which small pieces _B12 and B13 of the heat insulating material thinner than the heat insulating material _B1 are arranged in the removed missing portion 31b of the heat insulating material B1, respectively. _FIG . ₁₁ is an exploded perspective view of a base V2 and a lid L2 of a protective cover connection body _C2 that accommodates and protects a bent portion Pa of a fluid pipe P that is bent and pulled out of the wall. 4 is a vertical cross-sectional view of a state in which the bent portion Pa of the fluid pipe P is accommodated in the accommodation space 40 of the protective cover connector _C2 . FIG. (a) and (b) are a sectional view and a plan view, respectively, showing the structure of another dividing portion of the portion to be removed 31 of the heat insulating material B ₁ (B ₂ ).

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail with reference to best examples. First, referring to FIGS. 1 to 5, the protective cover connector C ₁ to which the present invention is applied will be described. The protective cover connection body C ₁ is a name given from the functional aspect of connecting a plurality of straight protective covers C ₀ inside and outside the building wall W, and is connected to the terminal part of the straight protective cover C ₀ It is also called an "attached protective cover" from the aspect that it is attached. _A pipe joint A1 that connects a total of three fluid pipes P housed and protected inside the straight protective cover _C0 is also called a cheese joint, a T joint, or a three-way joint, and is arranged outside and inside the wall. and the in-wall pipe connection portion 22b of the three pipe connection portions 22a and 22b is inserted into the wall through-hole H formed in the building wall W, When connecting a total of three fluid pipes P, that is, one fluid pipe P inside the wall and two fluid pipes P arranged on the same straight line outside the wall, the protective cover connection body C ₁ It is housed in an internal housing space 10 and used.

The protective cover connection body C1 is formed by resin injection molding, and is integrally assembled with _a flat plate _- shaped base V1 and the base V1 to form _a housing space ₁₀ for the pipe joint A1 inside. and a lid L ₁ forming a The base V ₁ has vertical wall portions 2 projecting in the longitudinal direction from both ends in the longitudinal direction of the base portion 1 in the shape of a rectangular flat plate in the width direction. An engaging portion 3 is formed, and a through hole 4 is formed in the longitudinal central portion of the base portion 1 to allow the in-wall pipe connection portion 22b of the pipe joint A ₁ to pass therethrough. A flange portion 5 that covers the outer peripheral portion of the wall through hole H is formed in each of the portions. Both ends of each flange portion 5 in the base portion 1 of the base V ₁ extend in the longitudinal direction of the side wall 12 of the lid L ₁ in a state where the lid L ₁ is assembled to the base V ₁ by engagement. A width stepped portion 6 is formed in a stepped shape along the width direction so that a shallow fitting groove portion 15 formed over a predetermined length in the intermediate portion can be fitted. Note that 7 and 8 in the figure indicate a screw insertion hole and a positioning projection, respectively.

The lid body L ₁ has the same U-shaped cross section over the entire length, and the top wall 11 and both ends of the top wall 11 are assembled to the base V ₁ . Each of the side walls 12 is formed with a connecting opening 13 at each longitudinal end thereof to be connected with the end of the straight protective cover C ₀ . Engagement portions 14 project inward from portions corresponding to the engaged portions 3 of the base V ₁ on the inner surface of each side wall 12 . A shallow fitting groove portion 15 is formed for fitting a portion between width stepped portions 6 provided at predetermined intervals in the longitudinal direction in the base portion ₁ of the base V1.

In addition, a pipe joint A for connecting a total of three fluid pipes P piped inside and outside the building wall W to the accommodation space 10 of the protective cover connection body C ₁ by assembling the base V ₁ and the lid body L _{1 1} is accommodated, the fitting A ₁ forms part of the fluid pipe, and the accommodation space 10 forms part of the piping route of the fluid pipe. Also, the fluid pipe forms a flow path for hot water flowing therein.

Further, as shown in FIGS. 6 and 7, a rectangular heat insulating material B1, which will be described later, is arranged on the inner surfaces of the ceiling wall 11 and the _side walls ₁₂ that constitute the lid L1, and and a positioning ridge for positioning the arrangement position of the heat insulating material _B1 in the circumferential direction. The positioning ridge is _{a single} linear circumferential positioning ridge 16 provided in the longitudinal direction of the lid L1 in order to determine the arrangement position of the heat insulating material _B1 with respect to the circumferential direction of the lid L1. and longitudinal positioning ribs provided along the circumferential direction at both ends of the circumferential positioning ribs ₁₆ in order to determine the arrangement position of the rectangular heat insulating material _B1 with respect to the longitudinal direction of the lid L1. 17. The circumferential positioning ridges 16 are provided linearly along the longitudinal direction of the lid L ₁ at the center of the width direction of the top wall 11 of the lid L ₁ , and the pair of longitudinal positioning ridges 17 are , are provided perpendicularly to both ends of the circumferential positioning protrusion 16 so that both ends of the circumferential positioning protrusion 16 form a T-shape. The protrusion height of each positioning protrusion 16, 17 is about 0.2 to 0.5 mm.

On the other hand, the pipe joint A ₁ is made of resin or metal, and as shown in FIGS. A pair of outer wall pipe connection portions 22a arranged on the same straight line are provided in a T-shaped integral manner, and the ends of two fluid pipes P piped on the same straight line on the wall surface are connected to the pair of outer wall pipe connection portions 22a arranged on the same straight line. The inner wall pipe connecting portions 22b are arranged in the middle portion of the pair of outer wall pipe connecting portions 22a at right angles to the outer wall pipe connecting portions 22a. The end of the fluid pipe P, which is piped and whose end is inserted into the wall through-hole H, is connected in an internally fitted state. Each connecting portion between the joint main body 21 and the pipe connecting portions 22a and 22b outside the wall and inside the wall is formed in an orthogonal step shape so that the side of the joint main body 21 is lower, thereby forming a protective cover connecting body C ₁ . A pair of outer wall pipe connection portions 22a are arranged closer than the joint main body 21 to the inner surface of the _top wall 11 of the lid L1 in a state in which the pipe joint A1 is housed in the housing space ₁₀ . become. Therefore, the portion on the opposite side of the building wall W when the pipe joint A1 is arranged in the pair of outer _- wall pipe connection portions 22a becomes the portion that interferes with the _top wall ₁₁ of the lid L1 of the protective cover connection body C1. .

The outer-wall pipe connection portion 22a and the inner _- wall pipe connection portion 22b constituting the pipe joint A1 are connected orthogonally, and the connection portion is connected by an annular connection curved surface 23 having a cross section with a radius _R1 . ing. The cross-sectional radius _R1 of the annular connection curved surface 23 of the pipe joint A1 is much smaller than the cross _- sectional radius _R2 of the annular connection curved surface 24 of the pipe joint _A2 , which will be described later. 23 and the _upper surface side inner peripheral edge 4a of the through hole ₄ of the base V1 do not interfere with _each other. Each outer-wall pipe connection part 22a is arranged close to or in contact with the base part ₁ of the protective cover connection body C1, and as _a result, the pipe joint A1 is connected to the heat insulating material B provided _on the inner surface of the lid body L1. Can be accommodated without interfering with ₁ .

The heat insulating material _B1 adhered to the inner surface of the lid L1 of the protective cover connecting body C1 is formed of _a thick plate _- shaped foamed resin, and has _a rectangular shape corresponding to the inner surface shape of the lid L1. formed in the shape of The longitudinal direction and the lateral direction of the heat insulating material B ₁ are arranged along the longitudinal direction and the peripheral direction of the lid L ₁ , respectively, and the long side and the short side of the rectangular heat insulating material B ₁ have dimensions M ₁ , M ₂ is formed slightly shorter than the overall length and inner peripheral length of the lid L ₁ . Two rectangular portions to be removed 31 are provided in the central portion of the heat insulating material B ₁ in the width direction at a predetermined interval along the longitudinal direction. Along the length of _B1 . The length N of each to-be-removed portion 31 in the longitudinal direction is such that the portion to be removed 31 is formed by removing and missing the portion to be removed 31b, and the outer-wall pipe connection portion 22a of the pipe joint A ₁ (A ₂ ). The length N of the portion to be removed 31 is formed slightly longer than the axial length K of the outer-wall pipe connection portion 22a so that the entire length in the axial direction can be accommodated. _{In a} state in which the lid body L1 and the base V1 of the protective cover connection body C1 having the heat insulating material _B1 adhered to the inner surface are assembled, the _two portions to be removed 31 of the heat insulating material _B1 are protected. It is provided at a position corresponding to the peripheral surface on the side opposite to the building wall W in the two outside-wall pipe connection portions 22a of the pipe joint A ₁ (A ₂ ) housed in the housing space 10 of the cover connection body C ₁ .

The square _- shaped portion to be removed 31 is arranged such that its longitudinal direction coincides with the longitudinal direction of the heat insulating material B ₁ . A rectangular parting line 32, which is a boundary line with a heat insulating material main body 34 that remains attached to the body, has a slit 32a formed on each of the opposing long sides and a perforation 32b on each of the opposing short sides. By being formed, the parting line 32 has a closed loop shape in which the slits 32a and the perforations 32b are alternately provided. For this reason, the portion to be removed 31 of the heat insulating material B ₁ is provided on each of the short sides facing the main body 34 of the heat insulating material 34, which is the remaining portion of the heat insulating material B ₁ from which the portion to be removed 31 has been removed. Since it is connected via each perforation 32b, the part to be removed 31 is not accidentally separated during handling, and the part to be removed 31 can be easily removed from the part of the perforation 32b in the temporarily connected state. It is possible to achieve the two conflicting matters of connecting and holding the part to be removed 31 and separating and removing it without any trouble. In addition, at the center of each short side of the heat insulating material B ₁ , both ends of a circumferential positioning ridge 16 provided on the inner surface of the lid L ₁ are aligned, and the inner surface of the lid L ₁ A V-cut groove 33 is provided for determining the position of the heat insulating material B ₁ along the direction.

Further, the parting line 32 of the above-described embodiment is formed in a closed loop shape by alternately forming rectangular pieces of linear slits 32a and perforations 32b of the same shape. may be any structure that includes at least one of slits and/or perforations. For example, the parting line 32 can be composed only of perforations or slits. Even if the parting line is composed only of slits, the part to be removed will not be separated from the heat insulating material main body due to friction with the outer peripheral surface, so that it can be used without removing the part to be removed.

_In order to _dispose the heat insulating material _{B1 on} the inner surface of the lid body L1 of the protective cover connecting body C1, as shown in FIGS. Adhesive is applied to a total of three adhering portions 35 outside the portions to be removed 31 and between the portions to be removed 31 along the longitudinal direction. In this state, while the heat insulating material B ₁ is curved in the lateral direction so that each sticking portion 35 and the inner surface of the lid L ₁ face each other, both ends in the longitudinal direction of the heat insulating material B ₁ are bent. , and both ends of the longitudinal positioning protrusions 17 formed on the inner surface of the lid L ₁ , and the V-cut grooves 33 formed on the short sides of the heat insulating material B ₁ are aligned with the lid L ₁ . By matching both ends of _linear circumferential positioning ridges 16 circumferentially formed on the inner surface of the lid body L1, as shown in FIG. , the lid L 1 is placed in close contact with the inner surface of the lid L ₁ . As a result, each adhered portion 35 of the heat insulating material B ₁ is adhered to the central portion in the width direction of the inner surface of the ceiling wall 11 of the lid L ₁ , and the heat insulating material B ₁ is curved in the lateral direction. , the heat insulating material _B1 is arranged on the inner surface of the lid L1 by being in elastic contact with the inner surface of _each side wall 12 due to the elastic restoring force that tends to return to the flat shape, which is the original shape.

Here, as shown in FIGS. 4 and 13, of the _three pipe connection portions 22a and 22b outside and inside the wall of the pipe joint A1, the inside wall pipe connection portion 22b is the wall of the building wall W. _The pipe joint _A1 is placed in the housing space ₁₀ formed by the base V1 of the protective cover connecting body C1 and the lid body L1 _on the wall surface while being inserted into the through hole H. Here, mainly due to the shape of the pipe joint _{A 1} (A ₂ ), as shown in FIG. There are cases where the connector C ₁ does not interfere with the heat insulating material B ₁ arranged on the inner surface of the lid L ₁ , and cases where it interferes as shown in FIG. 13 .

Then, when there is no interference between the pipe joint A ₁ and the heat insulating material B ₁ , the portion to be removed 31 provided in the heat insulating material B ₁ is left as it is and the heat insulating material B ₁ is used. 11, insert the tip of _a flathead screwdriver T1 into the slit 32a of the parting line 32, which is the boundary between the heat insulating material main body 34 and the portion to be removed 31, as shown in FIG. _The part to be removed 31 is forcibly raised and broken, or the perforation 32b is cut by the blade part of the cutter T2, thereby breaking the perforation 32b and separating the part to be removed 31 from the heat insulating material main body 34. . As a result, the portion to be removed 31 of the heat insulating material B ₁ becomes a removal piece 31 a and is separated from the heat insulating material main body 34 , and a rectangular removal missing portion 31 b is formed in the heat insulating material B ₁ , and the lid L ₁ top wall 11 is exposed.

Two fluid pipes P that are arranged linearly outside the building wall W, and one fluid pipe P that is arranged inside the building and whose end enters the wall through hole H of the building wall W. A total of three fluid pipes P are connected inside and outside the building wall W via pipe joints A ₁ housed in housing spaces 10 of protective cover connecting bodies C ₁ . When connecting the three fluid pipes P described above using the pipe joint A1, the cross _- sectional radius _R1 of the annular connection curved surface 23 of the pipe joint A1 is the same as that of _another pipe joint _A2 . Because it is relatively small compared to the radius R ₂ of the outer wall pipe connection portion 22a of the pipe joint A ₁ accommodated in the accommodation space 10 of the protective cover connector C ₁ and the inner surface of the lid L ₁ Since it does not interfere with the portion of the provided heat insulating material B ₁ that is arranged on the ceiling wall 11, the portions to be removed 31 of the heat insulating material B ₁ are left as they are without being removed.

A method of connecting the above three fluid pipes P via the pipe joint A ₁ housed in the housing space 10 of the protective cover connector C ₁ will be described with reference to FIGS. 1 to 5. FIG. First, as shown in FIGS. 2 to 5, the wall through-hole H provided in the building wall W is aligned with the through _- hole 4 of the base V1, and a plurality of through-holes are formed on the wall surface Wa of the building wall W. The base V ₁ is fixed using the screws J, and then the base V ₀ of the straight protective cover C ₀ is connected to both ends of the base V ₁ in the pipe direction on the wall surface, Each base V ₀ is fixed to the wall surface Wa. In this state, the in _- wall pipe connection portion 22b of the pipe joint A1 is inserted into the through hole ₄ of the base V1 of the protective cover connecting body C1, and the pipe joint is placed _on the base portion ₁ of the base V1. By arranging the outer wall pipe connection portions 22a of A ₁ , the pipe joint A ₁ is installed on the base V ₁ .

Next, outside the building wall W, each fluid pipe P is held by a pair of holding pieces 61 of each base V ₀ of two straight protective covers C ₀ arranged linearly, and one end thereof is fitted inside the wall pipe connection portion 22a of the pipe joint A ₁ , and inside the building wall W, the end of the fluid pipe P piped in the building is inserted into the wall through hole H, and the wall When the in-wall pipe connection portion 22b of the pipe joint A ₁ that enters the through hole H is fitted, a total of three fluid pipes P, each end of which is arranged in a T-shape, are connected through the pipe joint A ₁ . The inside and outside of the building wall W are connected. In this state, the base V ₀ of the straight protective cover C ₀ is covered with the lid L ₀ , and after the base V ₀ and the lid L ₀ are assembled together, the protective cover connector C ₁ , 4 and 5, _each engaged portion _{3 of the base V 1 and} the lid L ₁ By engaging with the engaging portion 14, the base V ₁ and the lid L ₁ are assembled integrally, and the pipe joint A ₁ is installed in the housing space 10 inside thereof, and the inner surface of the lid L ₁ of the heat insulating material B ₁ provided on the top wall 11 without interfering with each of the portions to be removed 31 arranged on the top wall 11, that is, in a non-contact state. In addition, the lid body L ₀ of the straight protective cover C ₀ is provided with a heat insulating material B ₀ on the inner surface thereof over the entire length, similar to the lid body L ₁ of the protective cover connection body C ₁ . Two fluid pipes P externally connected via a pipe joint A ₁ are entirely insulated by heat insulating materials B ₀ and B ₁ , including the joint portion of the pipe joint A ₁ . .

Next, with reference to FIGS. 12 to 14, when another pipe joint A ₂ is used to connect a total of three fluid pipes P inside and outside the building wall W in a T-shaped connection, _Only parts different from the pipe joint A1 will be described. The radius R ₂ of the cross section of the annular connecting curved surface 24 connecting each of the outer-wall pipe connecting portions 22 a and the inner-wall pipe connecting portions 22 b of the pipe joint A ₂ is the cross section of the annular connecting curved surface 23 of the pipe joint A ₁ . Relatively much larger than the surface radius R ₁ . As a result, as shown in FIG. 13, in _a state in which the pipe joint _A2 is housed in the housing space ₁₀ inside the protective cover connecting body C1, the annular connection curved surface 24 of the pipe joint _A2 and the base V1 The pipe joint A ₂ is displaced toward the ceiling wall 11 of the lid L ₁ by interfering (contacting) with the inner peripheral edge 4 a on the upper surface side of the through hole 4 . As a result, the portion of _each outer wall pipe connection portion 22a of the pipe joint _A2 on the _side opposite to the building wall W interferes with the heat insulating material _B1 provided on the inner surface of the lid L1, causing the lid L1 to A force acts on the top wall 11 of the base V ₁ to separate the top wall 11 from the base V 1, and compared to the case where the pipe joint A ₁ is used, the base 1 of the base V ₁ and the fluid pipe P is increased. For this reason, the engagement between the engaged portion 3 of the base V ₁ and the engaging portion 14 of the lid L ₁ is hindered, and when the lid L ₁ is covered with respect to the base V ₁ , , the engagement may not be smooth, or even if the engagement is temporarily engaged, the engagement may be released over time.

Therefore, before covering the lid _L1 with respect to the base _V1 of the protective cover connecting body C1, the part to be removed 31 of the heat insulating material _{B1 adhered} to the inner surface of the lid _L1 is removed. By removing the ceiling wall 11, a removed missing portion 31b is formed, in which the top wall ₁₁ is exposed. 13 and 14, when the cover L ₂ is covered with respect to the base V ₁ in this state, the heat insulating material B ₁ adhered to the inner surface of the cover L ₁ is removed. The portion of the outside wall pipe connection portion 22a of the pipe joint _A2 on the side opposite to the building wall W is partially accommodated in the missing portion 31b. As a result, interference with the heat insulating material B ₁ on the inner surface of the lid L ₁ is avoided, and the pipe joint A ₂ is accommodated in the accommodation space 10 inside the protective cover connecting body C ₁ , so that the protective cover connecting body C The engaged portion 3 of the base V _{1 and the engaging portion 14 of the lid L 1 that} constitute the base V ₁ are engaged without hindrance. The portions of the heat insulating material main body 34 where the two removed missing portions 31b are located are insulated by the heat insulating material _B1 by coming close to or in contact with the outer surface of the joint main body 21 of the pipe joint _A2 .

As described above, by inserting a part of each outer-wall pipe connection portion 22a of the pipe joint _A2 into _each removal missing portion 31b formed by removing each portion to be removed 31 of the heat insulating material B1, By avoiding interference between the heat insulating material _B1 and the pipe joint _A2 , the engagement between the engaged portion ₃ of the base V1 of the protective cover connection body C1 and the engaging portion ₁₄ of the lid L1 is _achieved . Although this is certainly performed, the heat insulating properties of the portions of the heat insulating material B ₁ corresponding to the removed portions 31b are slightly lowered. Therefore, as shown in FIGS. 15(a) and _{15(b), separate rectangular heat insulating material pieces B 12 and B 12 , B} By inserting and arranging ₁₃ , it is possible to prevent the deterioration of the heat insulating properties of the portions of the removed missing portions 31b. The heat insulating material piece _B12 is a highly compressible heat insulating material, and is compressed by the fluid pipe P _in the state of use. The heat insulating material small piece B13 has low compressibility and high heat insulating performance. In the state, the fluid tube P is not compressed.

16 and 17 are exploded perspective views of a base V ₂ and a lid L ₂ that constitute a protective cover connection body C ₂ that accommodates and protects the bent portion Pa of the fluid pipe P bent and pulled out of the wall. FIG. 1 and a vertical cross-sectional view of the state of use, in which the portion of the heat insulating material B ₂ provided on the inner surface of the lid L ₂ that interferes with the bent portion Pa of the fluid pipe P also in the protective cover connection body C ₂ By removing and missing , it is possible to keep the bent portion Pa of the fluid pipe P warm and to maintain the engagement state between the base V ₂ and the lid L ₂ .

The base V ₂ of the protective cover connecting body C ₂ has a pair of vertical wall portions 42 provided at both ends in the width direction of the narrow portion of the plate-like base portion 41 , and the base portion 41 extends along the longitudinal direction of the base portion 41 . Another standing wall portion 43 is provided at the center portion in the width direction of the end portion on the opposite side of the pair of standing wall portions 42, and engaged portions 44 and 45 are formed stepwise on the outer sides of the respective standing wall portions 42 and 43. It is A base portion 41 of the base V ₂ is provided with a through hole 46 through which the fluid pipe P drawn out of the wall is inserted.

The lid L ₂ covered by the base V ₂ includes a pair of first side walls 49 a forming a connection opening 48 on the top wall 47 and a second side wall 49 b closing the side facing the connection opening 48 . A total of three side walls 49a and 49b are continuously provided. A total of three engaged portions 44 and 45 of the base V ₂ are engaged with portions of the inner surfaces of the pair of first side walls 49a near the connection opening 48 and the inner surface of the second side wall 49b. Engaging portions 52 and 53 are provided.

_The inner surface of the lid L2, that is, the inner surfaces of the top wall 47 and the pair of first side walls 49a and _second side walls 49b are bent into a three-dimensional shape in which the inner surfaces of a sheet of heat insulating material B2 are synthesized. The portion of the heat insulating material B ₂ that is attached to the inner surface of the ceiling wall 47 is removed by removing the square-shaped portion 51 to be removed, so that the heat insulating material B ₂ at the bent portion Pa of the fluid pipe P is removed. _A removal missing portion 51b is formed for inserting the interference portion Pa1 with the . Engaging portions 52 and 53 that engage with the engaged portions 44 and 45 of the base V ₂ are provided on the inner surfaces of the first and second side walls 49a and 49b of the lid L ₂ , respectively. there is In addition, in FIG. 16, 51a indicates a removed piece of the portion to be removed 51. As shown in FIG.

For this reason, as shown in _FIG . 17, interference with the heat insulating material B2 arranged in the portion near the connection opening 48 of the protective cover connection body _C2 in the bent portion Pa of the fluid pipe P drawn out of the wall. The portion Pa ₁ enters the removed portion 51b of the heat insulating material B ₂ and is piped so that the engaged portions 44 and 45 of the base V ₂ and the engaging portions 52 and 52 of the lid L ₂ Engagement with 53 is maintained over time.

Further, in forming the square-shaped portion to be removed 31 on the heat insulating material B ₁ (B ₂ ), in addition to the dividing line 32 formed by the slit 32a and the perforation 32b, as shown in FIGS. , a V-shaped groove 36 having a sharp cross section is formed along the entire circumference at the boundary between the heat insulating material main body 34 and the portion to be removed 31, so that the heat insulating material main body 34 and the portion to be removed 31 form a rectangular shape. It is also possible to have a configuration in which they are connected by the connecting portion 37 of the . The portion to be removed 31 can be easily removed by inserting the tip of a knife into the groove portion 36 to cut the connection portion 37, and the portion to be removed 31 is connected to the heat insulating material main body 34 via the connection portion 37. It is possible to leave it because it is connected to .

Furthermore, a mark is attached to the boundary between the heat insulating material body 34 and the portion to be removed 31 on the surface of the heat insulating material B ₁ (B ₂ ), and if necessary, the portion to be removed is cut along the mark. is also possible.

A ₁ , A ₂ : Pipe joint
B ₁ , B ₂ : Thermal insulation
C ₀ : Straight protection cover
C ₁ , C ₂ : protective cover connector
L ₁ , L ₂ : Lid of protective cover connector
P: Fluid pipe
Pa: bent portion of the fluid pipe
Pa ₁ : Interference part of fluid pipe
R ₁ , R ₂ : Radius of the cross section of the curved surface of the pipe joint annular connection
V ₁ , V ₂ : Base of protective cover connector
W: Building wall 3, 44, 45: Engaged portion
10, 40: accommodation space
11, 47: top wall 12, 49a, 49b: side wall
13, 48: Connection opening 14, 52, 53: Engaging portion
21: joint body
22a: Outer wall tube connection
22b: Intrawall pipe connection
23, 24: Circular connection curved surface
31, 51: part to be removed 31b, 51b: removal missing part
32: Dividing line
32a: slit
32b: Perforation
35: Sticking part

Claims (4)

It consists of a base and a cover that form a housing space for a fluid pipe that is assembled together to form a flow path or a pipe joint that is connected to the fluid pipe, and a lid that is connected to the pipe joint. The straight protective cover forming the installation path is a protective cover connection body connected to its own connection opening,
The lid includes a ceiling wall arranged opposite the base fixed to the wall surface, and a pair of side walls arranged opposite to each other with the ceiling wall side as a base end and the wall surface side as a tip,
A heat insulating material having a portion to be removed that is partially removable is provided on the inner surface of the lid facing the accommodation space,
The protective cover is characterized in that the heat insulating material is adhered to the inner surface of the lid body except for the portion to be removed, and the portion to be removed can be removed while being adhered to the inner surface. connection. At the boundary between the part to be removed of the heat insulating material and the heat insulating material main body, which is the remaining part of the heat insulating material stuck to the inner surface of the lid, there is a closed loop-shaped break in which slits or perforations, or both are mixed. 2. Protective cover connector according to claim 1, characterized in that a wire is provided. 3. The heat insulating material is provided along the inner surface of the ceiling wall and the side walls, and the portion to be removed is provided only along the inner surface of the ceiling wall. protective cover connection as described in . The end of the straight protective cover that accommodates and protects the fluid pipe routed along the building wall is connected to a protective cover connector, and the protective cover connector includes a base fixed to the building wall and the base. A housing structure for a pipe joint that is housed in an internal space formed by both and is connected to the fluid pipe,
In the pipe joint, a curved flow path is formed inside by a plurality of pipe connection portions, and in a state in which a specific one of the pipe connection portions enters a wall through-hole formed in the building wall, the remaining two two pipe connections are connected to the fluid pipe at the wall surface of the building wall;
A part of the heat insulating material provided on the inner surface of the lid body is removed and missing, and a portion of the pipe joint on the opposite side of the building wall is partially inserted into the removed missing part of the heat insulating material. A housing structure for a pipe joint.

Images