JP2002333083A - Drawing-out tool and structure for piping material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drawing-out tool for a piping material capable of preventing the intrusion of water with a simple structure and continuously keeping the water intrusion preventing effect. SOLUTION: This drawing-out tool 3 is provided with a main body 6 and a nut 7. The main body 6 is cylindrically formed, and the inside of the cylinder is used as an insertion hole 6a for inserting a water-supply pipe 2. The nut 7 is screwed on one end side of the main body 6, and provided with a drawing- out port 7c for drawing out the water-supply pipe 2. Here, a construct 8 composed of the main body 6 and the nut 7 is provided with a water stop member 9 having a through hole 9a in which the water-supply pipe 2 is tightly inserted. Further the construct 8 is provided with first and second bending prevention members 11, 12 surrounding an outer peripheral face of the water-supply pipe 1 in a state of being approximately abutted thereon, on a position where the water stop member 9 is mounted therebetween.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piping member extracting tool for extracting a flexible piping member, and to a piping member extracting structure.

[0002]

2. Description of the Related Art Conventionally, as a drawer for pulling out a flexible water supply pipe made of a cross-linked polyethylene or the like, for example, by penetrating a wall of a building, for example, JP-A-63-25168
There was one shown in No. 4. That is, as shown in FIG. 6, the drawer 21 has a wall hole 22 formed in the wall 22.
a insertion hole 2 which is provided in the portion a and through which the water supply pipe 23 is inserted.
4 and a water stopping member 25 for preventing water from entering from the wall surface P1 side. And this water stopping member 25 was provided with the cylinder part 25a, and the inside of the cylinder was the through-hole 25b into which the water supply pipe 23 was inserted closely.

[0003]

By the way, in the above-mentioned conventional drawer 21, for example, a water supply pipe 23 penetrating through a wall 22 is bent at a small radius of curvature, so that it can be used outdoors outdoors on the wall surface P1 side. When connecting to a water heater or the like to be installed, a gap is formed between the water supply pipe 23 and the cylindrical portion 25a of the water stopping member 25, and there is a possibility that rainwater or the like may enter the wall back P2 side. Also,
When the water blocking member 25 is subjected to a load for many years by the bent water supply pipe 23, the water stopping member 25 may be damaged or deteriorated, and the water stopping effect of the water stopping member 25 may not be maintained.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional disadvantages. It is an object of the present invention to prevent water from entering with a simple structure and to prevent water from entering. An object of the present invention is to provide a pipe member drawer and a pipe member drawer structure that can maintain the effect continuously.

Another object of the present invention is to provide a pipe member drawer and a pipe member draw-out structure which can cope with a case where pipe members having different outer diameters or different numbers of pipe members are drawn. is there.

[0006]

Means for Solving the Problems In order to achieve the above-mentioned object, a pipe member drawer and a pipe member drawer according to the present invention have the following constitution. That is, the pipe material pulling tool according to the first aspect of the present invention is a pulling tool for pulling out a flexible pipe material, and is formed in a tubular shape. The main body has an insertion hole to be inserted, and a nut that is screwed to one end of the main body and has an outlet through which the piping material is drawn out. A water blocking member having a through hole through which the pipe material is inserted in close contact with the component formed by the main body and the nut, and preventing bending of the pipe material at the water stopping member portion. To this end, first and second bending prevention portions are provided at positions where the water stopping member is interposed so as to substantially contact the outer peripheral surface of the pipe member and surround the outer peripheral surface.

[0007] Thus, the pipe member is inserted into the insertion hole of the main body formed in a cylindrical shape, and is drawn out from the outlet of the nut attached to one end of the main body. And, in the structure composed of the main body and the nut, a water-stopping member, at a position where the water-stopping member is interposed, surround the outer peripheral surface so as to substantially contact the outer peripheral surface of the pipe material, A first and a second bend preventing portion are provided, and the first and the second bend preventing portions hold the pipe member and prevent the pipe member from being bent at the water stopping member. In this way, the bending of the piping material in the water-stopping member portion is prevented, whereby the water-stopping member is kept in close contact with the piping material in the through-hole, and the main body is inserted through the through-hole through which the piping material is inserted. Water is prevented from entering the through hole. In addition, since the bending of the piping material at the water stopping member portion is prevented, the load on the water stopping member from the piping material can be reduced.

[0008] Further, as in the pulling tool for pipe material according to the second aspect of the present invention, in the pulling tool according to the first aspect,
The first bending prevention portion is formed of a first bending prevention member separate from the component, and the second bending prevention portion is formed of a second bending prevention member separate from the configuration. You may.

[0009] Further, as in the pulling tool for pipe material according to the third aspect of the present invention, in the drawing tool according to the second aspect,
The first and second bending prevention members and the water stopping member may be selectively used from a plurality of types according to the outer diameter of the pipe member or the number of the pipe members. . Thereby, by selectively using the first and second bending prevention members and the water stopping member from a plurality of types,
It is possible to correspond to piping materials having different outer diameters, or to accommodate different numbers of piping materials.

[0010] Further, in the drawer according to any one of the first to third aspects, as in the drawer for a pipe material according to the invention according to the fourth aspect, the water blocking member has an outer peripheral surface thereof. The peripheral wall surface of the through hole may bulge inward by being pressed by the peripheral wall surface of the insertion hole. In this way, in the water blocking member, the peripheral wall surface of the through hole swells inward, so that the piping material is
It is inserted closely into the through hole of the water blocking member.

According to a fifth aspect of the present invention, there is provided a drawer according to any one of the first to fourth aspects, wherein a wall hole formed in a wall of a building is provided. A cover may be provided, and the main body may be provided on the cover such that each side of the insertion hole is opened on the front and back of the cover. In this manner, the drawer is provided such that the main body portion is provided on the cover portion covering the wall hole of the building so that each side of the insertion hole is opened on the front and back sides of the cover portion, and the pipe inserted through the insertion hole is provided. The material is withdrawn from the wall hole. And, by the cover part covering the wall hole, water,
It is possible to prevent intrusion through the gap between the wall and the main body in the wall hole portion.

[0012] Further, according to a sixth aspect of the present invention, there is provided a drawing-out structure for a piping material, wherein a flexible piping material is drawn out from a wall hole formed in a wall of a building. The draw-out structure includes the wall hole, the piping material passing through the wall hole,
The main body portion is disposed in the wall hole portion, is formed in a cylindrical shape, and the inside of the cylinder is an insertion hole through which the piping material is inserted,
A nut that is screwed to one end of the main body and has an outlet through which the pipe material is drawn out. A water blocking member having a through hole through which the pipe material is inserted in close contact with the component formed by the main body and the nut, and preventing bending of the pipe material at the water stopping member portion. To prevent this, first and second bend preventing portions are provided at positions where the water blocking member is interposed so as to substantially contact the outer peripheral surface of the pipe member and surround the outer peripheral surface.

[0013] Thereby, the pipe material passing through the wall hole is inserted into the insertion hole of the cylindrical main body, and is drawn out from the outlet of the nut attached to one end of the main body. The plumbing material is withdrawn from the wall hole. And, in the structure composed of the main body and the nut, a water-stopping member, at a position where the water-stopping member is interposed, surround the outer peripheral surface so as to substantially contact the outer peripheral surface of the pipe material, A first and a second bend preventing portion are provided, and the first and the second bend preventing portions hold the pipe member and prevent the pipe member from being bent at the water stopping member. In this way, the bending of the piping material in the water-stopping member portion is prevented, whereby the water-stopping member is kept in close contact with the piping material in the through-hole, and the main body is inserted through the through-hole through which the piping material is inserted. Water is prevented from entering the through hole. In addition, since the bending of the piping material at the water stopping member portion is prevented, the load on the water stopping member from the piping material can be reduced.

According to a seventh aspect of the present invention, there is provided the draw-out structure according to the sixth aspect of the present invention, further comprising a cover for covering the wall hole, wherein the main body is provided with the cover. The portion may be provided so that each side of the insertion hole is opened on the front and back of the cover portion. According to this draw-out structure, the main body is provided on the cover that covers the wall hole of the building so that each side of the insertion hole is opened on the front and back sides of the cover, so that the pipe material inserted into the insertion hole is provided. Is
Pulled out of the wall hole. Since the cover covers the wall hole, it is possible to prevent water from entering through a gap between the wall and the main body in the wall hole portion.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an embodiment of a pipe member extracting device and a pipe member extracting structure according to the present invention.

FIG. 1 to FIG. 5 show an embodiment of a pipe member extracting tool and a pipe member extracting structure according to the present invention. In the figure, reference numeral 1 denotes a wall of a building, and 1a denotes a wall hole formed in the wall 1. Reference numeral 2 denotes a water supply pipe for supplying water or hot water as a flexible piping material. 3 is a drawer for pulling out the water supply pipe 2. Reference numeral 4 denotes a drawing structure from which the water supply pipe 2 is drawn from the wall hole 1a.

Here, the drawer 3 of the water supply pipe 2 includes a cover 5 as a cover, a main body 6 as a main body, and a nut 7. Then, the main body 6 and the nut 7
Is provided with a water stopping member 9 and first and second bending prevention portions X1 and X2.

The cover 5 covers the wall hole 1a.
A plate-shaped plate portion 5a, a disk-shaped mounting portion 5b that is inclined and protruded to the front side and the rear surface side of the plate portion 5a, and extends at a right angle from the periphery of the mounting portion 5b to the plate portion 5a. It is composed of connected peripheral wall portions 5c and 5c.
Holes 5d and 5d for attaching the cover 5 to the wall 1 are formed in four corners of the plate portion 5a.
A packing 5e is provided around the back surface of the plate portion 5a so as to contact the surface of the wall 1. Further, a circular mounting hole 5f for mounting the main body 6 is formed in the mounting portion 5b.

The main body 6 is formed in a cylindrical shape, and the inside of the main body is formed as an insertion hole 6a through which the water supply pipe 2 is inserted. Is provided so that each side of the insertion hole 6a is opened. More specifically, the main body 6 includes a first main body 6b located on one side and on the front side of the cover 5, and a second main body 6c located on the other side and on the back side of the cover 5. The first main body 6b has a female screw 6e formed on the inner periphery of a base end portion 6d, and the second main body 6c has a male screw 6g formed on the outer periphery of the base end portion 6f. Then, the base end portion 6f of the second main body 6c is inserted into the mounting hole 5f of the cover 5, and the male screw 6g and the female screw 6e are screwed together, so that the first main body 6b and the second main body 6c are connected to each other. Are assembled, and the first main body 6b and the second main body 6c
Are attached to the mounting portion 5b so as to sandwich the mounting portion 5b of the cover 5. At this time, the first
The inside of the cylinder between the main body 6b and the second main body 6c communicates with the insertion hole 6a, and the main body 6 composed of the first main body 6b and the second main body 6c is inserted into the mounting hole 5f. In addition,
A packing 6h is provided between the first main body 6b and the mounting portion 5b.

The first main body 6b has a tip portion 6i.
A male screw 6j is formed on the outer periphery of the. The inside of the cylinder of the first main body 6b has a large-diameter portion 6k at the distal end and a small-diameter portion 6 at the middle.
m, and a portion connecting the large-diameter portion 6k and the small-diameter portion 6m is a step portion 6n. The second main body 6c is a connector for connecting the sheath pipe 10 in which the water supply pipe 2 is housed, and the distal end portion 6p is provided with locking claws 6q, 6q for locking the sheath pipe 10. ing.

The nut 7 has a female screw 7a attached to one end of the main body 6 (in the illustrated embodiment, a male screw 6j at the distal end portion 6i of the first main body 6b). The nut 7 has an outlet 7c at the tip 7b from which the water supply pipe 2 is drawn out. The outlet 7c is smaller in diameter than the female screw 7a, and a portion connecting the female screw 7a and the outlet 7c is a step 7d.

The water blocking member 9 has a through hole 9a through which the water supply pipe 2 is inserted closely. Specifically, the water blocking member 9
Is made of, for example, a rubber material such as ethylene propylene rubber (EPDM) or the like, is formed in a disk shape, and has a circular through hole 9a formed in the center so as to penetrate the upper and lower surfaces. . The water stopping member 9 has an outer diameter slightly larger than an inner diameter of the large diameter portion 6k of the first main body 6b (see FIG. 4), and a nut 7 is attached to the male screw 6j of the first main body 6b. When screwed in, the second bending prevention member 12 described later
To be pressed into the large-diameter portion 6k (see FIG. 1). When the water blocking member 9 is press-fitted into the large diameter portion 6k of the first main body 6b in this manner, the outer peripheral surface 9b of the water blocking member 9 becomes the peripheral wall surface of the large diameter portion 6k, that is, the insertion hole 6a. When pressed by the peripheral wall surface, the peripheral wall surface of the through hole 9a bulges inward, and the water stopping member 9 and the water supply pipe 2 come into close contact.

First and second bending prevention portions X1, X2
Is to surround the outer peripheral surface of the water supply pipe 2 at a position where the water stop member 9 is interposed so as to be substantially in contact with the outer peripheral surface of the water supply pipe 2 in order to prevent bending of the water supply pipe 2 at the water stop member 9. And the 1st bending prevention part X1 consists of the 1st bending prevention member 11 separate from the said structure 8, and similarly, the 2nd bending prevention part X2 is separate from the said structure 8 Of the second bending prevention member 12. Here, the first bending prevention member 1
1 is formed in a cylindrical shape, and the inside of the cylinder is a first hole 11a into which the water supply pipe 2 is inserted substantially in contact. The first bending prevention member 11 has a first flange portion 1 at one end thereof.
1b is formed, and the first flange portion 11b is inserted into the small-diameter portion 6m such that the first flange portion 11b comes into contact with the step portion 6n of the first main body 6b. Similarly, the second bending prevention member 12 is formed in a cylindrical shape, and the inside of the cylinder is a second hole 12a through which the water supply pipe 2 is inserted substantially in contact. The second bending prevention member 12 has a second flange portion 12b formed at one end thereof.
d, and is inserted into the outlet 7c.

Then, the first and second bending preventing members 1
1, 12 and the water stop member 9 are selectively used from a plurality of types according to the outer diameter of the water supply pipe 2 or the number of the water supply pipes 2. That is, it has holes 11a, 12a and through holes 9a having an inner diameter corresponding to the outer diameter of the water supply pipe 2.
A plurality of types of the bending prevention members 11 and 12 and the water stopping member 9 are prepared, and a number of holes 11 corresponding to the number of the water supply pipes 2 are provided.
bending prevention member 1 having a, 12a and through hole 9a
A plurality of types 1 and 12 and the water stopping member 9 are prepared.
FIG. 1 shows a case in which one large-diameter water supply pipe 2 is provided, and one large-diameter hole 11a, 12a corresponding to this water supply pipe 2.
Bending prevention members 11 and 12 and water blocking member 9 having through holes 9a are used. FIG. 5 shows a case in which two small-diameter water supply pipes 2 are provided.
Corresponding to the two small holes 11a, 11a, 12a,
Bending prevention member 1 having 12a and through holes 9a, 9a
1, 12 and the water stopping member 9 are used.

On the other hand, the drawing structure 4 of the water supply pipe 2 is provided in the wall hole 1a, the water supply pipe 2 passing through the wall hole 1a, and the wall hole 1a, and the water supply pipe 2 is inserted as described above. Body 6
And a nut 7 screwed to one end of the main body 6 to draw out the water supply pipe 2 as described above, and the cover 5. Then, a structure 8 composed of the main body 6 and the nut 7
As described above, the water blocking member 9 and the first and second bending prevention members 11 and 12 are provided in the first embodiment.

Next, the operation and effect of the drawer 3 and the drawer structure 4 having the above-described structures will be described. The water pipe 2
It is inserted into the insertion hole 6a of the main body 6 formed in a cylindrical shape, and is pulled out from the outlet 7c of the nut 7 attached to the male screw 6j at one end of the main body 6. The structure 8 composed of the main body 6 and the nut 7 is provided with a water-stopping member 9 and a water-stopping member 9 at a position where the water-stopping member 9 is interposed so as to substantially contact the outer peripheral surface of the water supply pipe 2. First and second bending prevention members 11 and 12 are provided to surround the surface. In this way, since the water supply pipe 2 is held by the first and second bending prevention members 11 and 12, even when the water supply pipe 2 is bent outside the structure 8, the water stopping member 9 is provided. The bending of the water supply pipe 2 in the portion is prevented. In addition, since the water supply pipe 2 is prevented from being bent at the water stopping member 9, the water stopping member 9 is kept in close contact with the water supply pipe 2 at the through hole 9a, and the water supply pipe 2 is inserted. Water such as rainwater from the through hole 9a into the insertion hole 6a of the main body 6 is prevented. That is, the water stopping member 9 and the first and second bending prevention members 11 and 12 maintain the close contact of the water stopping member 9 with the water supply pipe 2 in the through hole 9a. Can be prevented from entering. Moreover,
Since the bending of the water supply pipe 2 in the water stopping member 9 portion is prevented, the load applied to the water stopping member 9 from the water supply pipe 2 can be reduced, so that breakage and deterioration of the water stopping member 9 can be suppressed. Thus, the effect of preventing water from entering by the water stopping member 9 can be continuously maintained.

Further, the first and second bending preventing members 11,
12 and the water-stopping member 9 are selectively used from among a plurality of types so as to correspond to the water supply pipes 2 having different outer diameters,
Alternatively, it is possible to correspond to different numbers of water supply pipes 2.

When the water blocking member 9 is pressed into the large diameter portion 6k of the first main body 6b, the outer peripheral surface 9b of the water stopping member 9 becomes the peripheral wall surface of the large diameter portion 6k, that is, the peripheral wall surface of the insertion hole 6a. The water supply pipe 2 is easily brought into close contact with the water stop member 9 by being pressed by the water supply pipe 9 and the peripheral wall surface of the through hole 9 a bulging inward. Therefore, the effect of preventing water from entering by the water stopping member 9 can be reliably obtained.

The drawer 3 and the drawer structure 4 are
The main body 6 is provided on the cover 5 covering the wall hole 1a such that each side of the insertion hole 6a is opened on the front and back sides of the cover 5, and the water supply pipe 2 inserted into the insertion hole 6a is It is pulled out from the wall hole 1a. By covering the wall hole 1a with the cover 5, water can be prevented from entering through the gap between the wall 1 and the main body 6 in the wall hole 1a portion.

It should be noted that the present invention is not limited to the above-described embodiment, and various other modifications are possible. For example, the wall 1 on which the drawer 3 and the drawer structure 4 are provided may be an outer wall or an inner wall of a building, or may be a bathroom wall or the like. Further, the drawer 3 is provided with the cover 5. By removing the cover 5, the drawer 3 can be disposed in a place other than the wall 1, for example, in a vicinity where the water supply pipe 2 is connected to the branch header. Good.

Although the sheath tube 10 is connected to the second main body 6c, the sheath tube 10 may not be connected unless it is particularly necessary.

Further, the pipe material is not limited to the water supply pipe 2 for supplying water or hot water, but may be a drain pipe, a gas pipe, or an electric wire pipe in which electric wires are accommodated.

Further, the first bending preventing portion X1 is provided with the structure 8
It does not need to be formed of the first bending prevention member 11 separate from the first main body 6b, for example. Similarly, the second bending prevention portion X2 is provided in a second
Even if it does not include the bending prevention member 12, for example, the nut 7
It may be integrated with.

[0034]

As will be apparent from the above description, the following effects can be obtained from the piping member drawer and drawer structure according to the present invention.

[0035] According to the pipe member extracting device of the first or second aspect, the water stopping member and the first and second bending preventing portions allow the water stopping member to come into close contact with the pipe member in the through hole. It is maintained, and water intrusion can be prevented with such a simple structure. In addition, since the load imposed on the water stopping member from the piping material can be reduced, breakage and deterioration of the water stopping member can be suppressed, and the effect of preventing water intrusion by the water stopping member can be continuously maintained. it can.

[0036] According to the pipe member extracting device of the third aspect, the first and second bending prevention members and the water stopping member are selectively used from a plurality of types. In addition, it is possible to correspond to piping materials having different outer diameters or different numbers of piping materials.

In addition, according to the pipe member extracting device of the fourth aspect, in the water blocking member, the outer peripheral surface is pressed against the peripheral wall surface of the insertion hole, so that the peripheral wall surface of the through hole is inward. The pipe material easily comes into close contact with the water-stopping member by swelling.

Further, according to the pipe member extracting device of the fifth aspect, since the cover portion for covering the wall hole is provided, water flows between the wall and the main body portion in the wall hole portion. Intrusion through the gap can be prevented.

According to the structure for drawing out a piping material according to the sixth aspect, the water stopping member and the first and second bending preventing portions allow the water stopping member to come into close contact with the piping material in the through hole. It is maintained, and water intrusion can be prevented with such a simple structure. In addition, since the load imposed on the water stopping member from the piping material can be reduced, breakage and deterioration of the water stopping member can be suppressed, and the effect of preventing water intrusion by the water stopping member can be continuously maintained. it can.

In addition, according to the structure for drawing out a piping material according to the seventh aspect, since the cover portion that covers the wall hole is provided, water flows between the wall and the main body portion in the wall hole portion. Intrusion through the gap can be prevented.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of one embodiment of a pipe member drawer and a drawer structure according to the present invention.

FIG. 2 is also a front view.

FIG. 3 is also a side view.

FIG. 4 is a longitudinal sectional view showing a state before the water blocking member is press-fitted.

FIG. 5 is also a diagram showing holes of a bending prevention member and a water stopping member,
It is a longitudinal cross-sectional view which shows the example from which a diameter and a number differ.

FIG. 6 is a longitudinal sectional view showing a conventional drawer.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Wall 1a Wall hole 2 Water supply pipe (piping material) 3 Puller 4 Pull-out structure 5 Cover (cover part) 6 Main body (main body part) 6a Insertion hole 7 Nut 7c Extraction outlet 8 Structure 9 Water stop member 9a Through hole 9b Outer periphery Surface 11 First bending prevention member 12 Second bending prevention member X1 First bending prevention portion X2 Second bending prevention portion

Claims (7)

[Claims] 1. A drawer for pulling out a flexible piping material, wherein the body portion is formed in a cylindrical shape, and the inside of the cylinder is an insertion hole through which the piping material is inserted. A nut having an outlet through which the pipe material is drawn out, which is screwed to one end side of the main body, wherein the pipe is closely inserted into a structure formed by the main body and the nut. A water stopping member having a through hole to be provided, and in order to prevent bending of the pipe member in the water stopping member portion, at a position where the water stopping member is interposed, so as to substantially contact an outer peripheral surface of the pipe member. A first and second bending preventing portions surrounding the outer peripheral surface are provided, and the pipe member drawer is provided. 2. The drawer according to claim 1, wherein the first bending prevention portion is formed of a first bending prevention member separate from the component, and the second bending prevention portion is formed of the second bending prevention portion. A drawing member for piping material, comprising a second bending prevention member separate from the constituent body. 3. The drawer according to claim 2, wherein the first and second bending prevention members and the water stopping member are in accordance with an outer diameter of the pipe member or in accordance with the number of the pipe members. And a pipe material drawer, which is selectively used from a plurality of types. 4. The drawer according to claim 1, wherein an outer peripheral surface of the water stop member is pressed against a peripheral wall surface of the insertion hole, and a peripheral wall surface of the through hole is formed. A pipe material drawer characterized by being bulged inward. 5. The drawer according to claim 1, further comprising a cover portion for covering a wall hole formed in a wall of the building, wherein the main body portion is provided on the cover portion. A drawing member for a piping material, wherein said member is provided on both sides of said portion such that each side of said insertion hole is opened. 6. A draw-out structure for extracting a flexible piping material from a wall hole formed in a wall of a building, wherein the wall hole, the piping material passing through the wall hole, and the wall hole. A main body portion formed in a tubular shape and having a cylindrical shape, the inside of which is an insertion hole through which the pipe material is inserted; and a threaded portion screwed to one end side of the main body portion, thereby pulling out the pipe material. A nut having an outlet, wherein a watertight member having a through hole through which the pipe member is closely inserted, and a watertight member having a structure formed by the main body and the nut; In order to prevent the pipe material from bending, first and second bend preventing portions surrounding the outer circumferential surface of the pipe material so as to substantially contact the outer circumferential surface are provided at positions where the water blocking member is interposed. Draw-out structure of piping material characterized by being provided. 7. The drawer structure according to claim 6, further comprising: a cover portion that covers the wall hole, wherein the main body portion is formed in the cover portion such that each side of the insertion hole is opened on both sides of the cover portion. A draw-out structure for piping material, characterized in that it is provided as follows.