JP5469699B2 - Wall penetration sleeve - Google Patents

Description

The present invention relates to a wall penetration sleeve that is embedded in a concrete wall and provides a passage through the concrete wall.

When placing a concrete wall, the wall penetration sleeve is fixedly placed on the formwork forming the wall, and after placement, the passage inside the wall penetration sleeve is used as a passage for various pipes and wiring. ing.

FIG. 8 is an explanatory view of a method of using one example of the wall penetration sleeve as the background art of the present invention among such wall penetration sleeves. This wall penetration sleeve is described in Patent Document 1.

This wall penetration sleeve 60 has a cylindrical sleeve 55 and a cylindrical shape, and the sleeve 55 can be connected to the inner periphery of the opening end of both ends thereof. And a connecting body 58 having 56 integrally therewith.

A male threaded portion 55a for pipe connection is formed on the outer periphery of one end of the sleeve 55, and a female threaded portion 57 corresponding to the male threaded portion 55a is formed on the inner periphery of both ends of the connection body.

With this configuration, according to the wall penetration sleeve 60, if the sleeve 55 is screwed on both sides of the connecting body 58 and is fixed in the formwork when placing concrete, as shown in FIG. It is possible to secure a passage for the pipe P penetrating the concrete wall KW, and at this time, water that tries to pass through the outer periphery of the wall penetration sleeve 60 can be blocked by the waterproof flange 56.

However, in this wall penetrating sleeve 60, the sleeve 55 has a length corresponding to the wall thickness in advance so that the total length of the two sleeves 55 screwed into the connecting body 58 matches the thickness of the concrete wall KW. It was necessary to make it uniform (specification page 5 of Patent Document 1, fourth to sixth lines from the top).

According to the present applicant, it is troublesome to prepare the sleeve 55 corresponding to the thickness of the concrete wall KW in this way, and it seems that the delivery time of the parts increases and the cost increases.

Japanese Utility Model Publication No. 61-28977 (FIG. 1)

An object of the present invention is to solve the above-described problem, and to provide a wall-penetrating sleeve that does not need to have a length corresponding to the thickness of a concrete wall to be placed. And

Wall penetration sleeve according to claim 1 is embedded in the concrete wall, a through-wall sleeve penetrating the concrete wall is formed into a cylindrical shape, connecting pipe or tube connector can be connected to one end The other end side is a cylindrical shape integrally formed with two sleeves made of synthetic resin that can be cut and a disc-shaped flange, and the sleeve has an insertion port at both ends thereof. The two sleeves are either one or both of the two sleeves cut , inserted into the insertion port and bonded, and connected and fixed to the connection body. To do.

The wall penetrating sleeve according to claim 2 is dependent on claim 1, and the center protrusion such that the main body cylindrical portion of the inserted sleeve comes into contact with the center of the insertion port on both sides of the connecting body. A portion is provided.

The wall-penetrating sleeve according to claim 3 is dependent on claim 1 or 2, and the connecting body includes a reinforcing bar fixing portion having a reinforcing bar insertion hole for inserting a reinforcing bar installed and supported by the rebar rebar, and a tertiary by hand. And a wire rod fixing portion having a wire rod insertion hole through which a wire rod that can be bent in the original direction is inserted.

The wall penetrating sleeve according to claim 4 is dependent on any one of claims 1 to 3, and the connecting portion of the sleeve is larger in diameter than the main body cylinder portion which is another portion. Features. The method of using the wall penetration sleeve according to claim 5 is a method of using the wall penetration sleeve embedded in a concrete wall and penetrating the concrete wall,
It has a connection part that can be connected to a pipe or pipe connection body at one end, and has two discs made of synthetic resin that can be cut off at the other end , and has a disc-shaped flange. One connection body made of a synthetic resin having a cylindrical shape and having sleeve insertion ports at both ends thereof is prepared,
Either one or both of the other end sides of the two sleeves are cut according to the thickness of the concrete wall , and each is inserted into the insertion port and bonded, and the connection body and the two sleeves are connected. It is fixed to a mold forming the concrete wall in a fixed state.

According to the wall through sleeve according to claim 1, is embedded in a concrete wall, a through-wall sleeve penetrating the concrete wall is formed into a cylindrical shape, a tube or pipe connector at one end connectable The other end side is a cylindrical shape integrally formed with two sleeves made of synthetic resin that can be cut and a disc-shaped flange, and the sleeve is inserted at both ends thereof. The two sleeves, either one or both of the two sleeves are cut, respectively inserted and bonded to the insertion port, and connected and fixed to the connection body, The length can be adjusted according to the thickness of the concrete wall at the site, so that it is not necessary to prepare a length corresponding to the thickness of the concrete wall to be placed. In addition, since the other end side of the sleeve and the insertion port are adhesively fixed, both are firmly fixed. Furthermore, it is possible to adjust not only the total length but also the position of the connection body provided with the flange.

According to the wall penetration sleeve of the second aspect, in addition to the effect of the first aspect, the central protrusion such that the main body cylindrical portion of the inserted sleeve comes into contact with the center of the insertion port on both sides of the connecting body. Since the portion is provided, the insertion of the sleeve is restricted by the central protrusion.

According to the sleeve for penetrating a wall according to claim 3, in addition to the effect of claim 1 or 2, the connecting body includes a reinforcing bar fixing portion including a reinforcing bar insertion hole through which the reinforcing bar laid and supported by the rebar rebar is inserted. Since it has a wire rod fixing part with a wire rod insertion hole for inserting a wire rod that can be bent in three dimensions by hand, if necessary, it uses a reinforcing bar or wire rod to connect it, that is, a wall penetration sleeve Can be held more firmly to withstand concrete placement.

According to the sleeve for penetrating a wall according to claim 4, in addition to the effect of any one of claims 1 to 3, the connecting portion of the sleeve has a larger diameter than the main body cylinder portion which is another portion. Therefore, the effective inner diameter of the tube or tube connecting body to be connected to the connection portion can be matched with the effective inner diameter of the wall penetration sleeve, and the effective inner diameter of the wall penetration sleeve can be ensured. According to the method of using the wall penetration sleeve according to claim 5, the wall penetration sleeve is embedded in a concrete wall and penetrates the concrete wall, and is formed in a cylindrical shape, and has a pipe or The pipe connection body has a connecting portion to which the pipe connection body can be connected, and the other end side is formed of two sleeves made of synthetic resin that can be cut , and has a disk-like flange integrally. One synthetic resin connection body having a sleeve insertion port is prepared, and one or both of the other end sides of the two sleeves are cut according to the thickness of the concrete wall. The effect of claim 1 is exhibited as a method of use because the connection body and the two sleeves are fixedly connected to a mold forming the concrete wall in a state where the connection body and the two sleeves are connected and fixed. To do.

The sleeve which comprises an example of the sleeve for wall penetration of this invention is shown, (a) is the longitudinal cross-sectional view, (b) is the front view. The connection body which comprises an example of the wall penetration sleeve of this invention is shown, (a) is the partially broken front view, (b) is the front view. 1 shows a protector constituting an example of a wall penetration sleeve according to the present invention, in which (a) is a front view thereof, (b) is a rear view thereof, (c) is a sectional view taken along line AA in (a), (d). Is a BB cross-sectional view of (a), and (e) is an external perspective view thereof. 1 is a partially broken front view showing a wall penetration sleeve in which the sleeve of FIG. 1, the connection body of FIG. 2, and the protective device of FIG. 3 are combined. (A), (b) is explanatory drawing of the usage method of the sleeve for wall penetration of FIG. (A), (b) is explanatory drawing of the usage method of the sleeve for wall penetration of FIG. 4 following FIG. Reference example of the wall penetration sleeve of the present invention and explanatory diagram of its usage Explanatory drawing of the usage method of an example of the sleeve for wall penetration used as the background art of this invention

DESCRIPTION OF SYMBOLS 1 Connection part 2 Main body cylinder part 5 Sleeve 6, 6A Flange 7 Insert 8 Reinforcing bar fixing part 8a Reinforcing bar insertion hole 9 Wire rod fixing part 9a Wire rod insertion hole 10, 10A Connection body 11 Fitting part 12 Fixing part
20 Protective equipment 30, 30A Wall penetration sleeve KW Concrete wall WF Formwork P Pipe P1 Pipe joint

Hereinafter, embodiments (examples) of the present invention will be described with reference to the drawings.
<Embodiment 1>

FIG. 1 shows a sleeve constituting an example of a wall penetration sleeve of the present invention, in which (a) is a longitudinal sectional view thereof and (b) is a front view thereof.

This sleeve 5 is made of synthetic resin and has a stepped cylindrical shape as a whole, and has one end as a connecting portion 1 and a large diameter. Compared with the connecting portion 1, the smaller diameter portion is referred to as a main body cylindrical portion 2.

The connecting portion 1 is a side that opens to the wall surface of the concrete wall, and can be connected to a pipe or a pipe connection body.

If the inner diameter of the pipe connected to the connecting portion 1 or the pipe connecting body and the inner diameter of the main body cylinder portion 2 are the same, the same effective inner diameter of the passage can be secured, and the passage As a usefulness.

The length of the connecting portion 1 is sufficient if it is sufficient to fit with the connected pipe or pipe connecting body, and the rest of the sleeve 5 has the same inner and outer diameter as the main body cylindrical portion 2. ing. For this reason, no matter where this main body cylinder portion 2 is cut, it can be connected to the insertion port 7 of the connection body 10 in the same fitting state, as will be described later.

The kind of the synthetic resin that is the material of the sleeve 5 is not particularly limited, but generally used PVC (polyvinyl chloride) is suitable, and in the case of this PVC, the price can be reduced.

FIGS. 2A and 2B show a connection body constituting an example of the wall penetration sleeve of the present invention, in which FIG. 2A is a partially broken front view and FIG. 2B is a front view thereof.

The connecting body 10 is a cylinder having a disk-like flange 6 integrally, and is made of a synthetic resin provided with insertion ports 7 for receiving the main body cylinder portion 2 of the sleeve 5 at both ends thereof.

The flange 6 is provided at the center part of the axial length of the outer periphery of the cylindrical connecting body 10 and plays the role of waterproofing similarly to the waterproof flange 56 provided in the connecting body 58 of the background art of FIG. .

The relationship between the inner diameter of the insertion port 7 of the connecting body 10 and the outer diameter of the main body cylinder portion 2 of the sleeve 5 is such that water leakage and imperfect fixing do not occur when both are fitted and fixed with an adhesive. It has become a thing.

The length of the insertion port 7 is a normal fitting so that it can also correspond to a cut end face that is not perpendicular to the axial direction due to unevenness of the main body cylinder portion 2 of the sleeve 5 that is used by appropriately cutting the length at the site. It is longer than the length required for fixing the adhesive.

At the center of the insertion port 7 on both sides, a central protrusion 10a is provided so that the main body cylinder part 2 of the inserted sleeve 5 contacts. The inner diameter of the central protrusion 10a is not smaller than the inner diameter of the main body cylinder portion 2 to ensure an effective inner diameter as a passage.

In the vicinity of both ends of the outer periphery of the connection body 10, a reinforcing bar fixing portion 8 having a reinforcing bar insertion hole 8 a through which a reinforcing bar supported by a rebar is inserted, and a wire rod for inserting a wire that can be bent in three dimensions by hand. A wire fixing portion 9 having a hole 9a is provided.

In this connection body 10, the pair of reinforcing bar fixing portions 8 and the wire rod fixing portion 9 on both sides are provided at opposing positions (up and down positions) on the outer periphery of the cylindrical connection body, but are limited to such an arrangement. Is not to be done.

The kind of the synthetic resin that is the material of the connection body 10 is not particularly limited, but generally used PVC (polyvinyl chloride) is suitable, and in the case of this PVC, the price can be reduced.

Further, if the connecting body 10 and the sleeve 5 are made of the same material, there are cost merit due to unification of the kind of material and merit improvement of adhesion at the time of adhesion.

FIG. 3 shows a protector constituting an example of the wall penetration sleeve of the present invention, in which (a) is a front view thereof, (b) is a rear view thereof, and (c) is an AA cross-sectional view of (a). (D) is BB sectional drawing of (a), (e) is the external appearance perspective view.

The protector 20 is embedded in the connecting portion 1 of the sleeve 5 and used to protect the connecting portion 1.

Its features are a fitting portion 11 that closely fits the entire inner surface of the connecting portion 1 of the sleeve 5 and closes the opening side of the connecting portion 1, and a formwork WF for forming the concrete wall KW (FIG. 6). And a fixing portion 12 for fixing the protective device 20 in a detachable manner.

In addition to the above configuration, the protective device 20 has a cylindrical shape in which a fitting portion 11 on the outer peripheral side and a fixing portion 12 on the center side are connected by a reinforcing bar 13, and the opposite side of the mold frame is a lid portion It is closed at 15.

Furthermore, the protector 20 is provided with a flange portion 14 (see FIG. 6) that abuts on the end surface of the connection portion 1 and is interposed between the end surface of the connection portion 1 and the mold WF.

More specifically, the fixing portion 12 includes a fixing hole 12a through which the shaft portion of the hexagonal bolt 16 (see FIG. 6) is inserted and penetrates from the side opposite to the mold frame side of the protector 20 to the mold frame side. A hexagonal recess 12 b is provided on the side opposite to the mold 12 of the hole 12 a and corresponds to the hexagonal head of the hexagon bolt 16.

Further, in this protector 20, in addition to the fixing portion 12 (the fixing hole 12a and the hexagonal recess 12b), a nail as a fixing means is driven from the lid portion 15 to the mold WF side so that the protector 20 is molded. 12 A of fixing means penetration parts for fixing to the frame WF are also provided.

The fixing means through portion 12A is a through hole having a hole diameter that allows a nail used for attachment to the formwork WF to be driven without resistance, and the protector 20 is not damaged even when the nail is driven.

Further, the fixing means penetrating portion 12A does not penetrate completely, and a closing portion 12c that can be easily broken by driving a nail is formed in a part thereof. The closing portion 12 c prevents the inside of the wall penetration sleeve 30 with the protector 20 attached from being contaminated with dust or the like entering from the protector 20.

As a material for the protective device 20, a synthetic resin having moldability and good mechanical strength is preferable, and for example, PE (polyethylene) is preferable.

4 is a partially broken front view showing a wall penetration sleeve in which the sleeve of FIG. 1, the connection body of FIG. 2, and the protective device of FIG. 3 are combined. The parts already described above are denoted by the same reference numerals, and redundant description is omitted.

As shown in FIG. 4, the wall penetration sleeve 30 of the present invention is inserted into the insertion port 7 of the connection body 10 of FIG. 3 is fitted and closed, and is embedded in a concrete wall and used to provide a passage through the concrete wall.

Hereinafter, a method of using the wall penetration sleeve 30 having such a configuration will be described with reference to FIGS. 5 and 6.

5 (a) and 5 (b) are explanatory views of a method of using the wall penetration sleeve of FIG. 4, and FIGS. 6 (a) and 6 (b) are diagrams of the wall penetration sleeve of FIG. It is explanatory drawing of a usage method. 6A is a perspective view showing a state in which the wall penetration sleeve 30 is attached to the mold WF, and FIG. 6B is a cross-sectional view of a fixed portion between the mold WF and the sleeve 5 in FIG. FIG.

First, as shown in FIG. 5A, two sleeves 5 of the wall penetration sleeve 30 and one connection body 10 should be prepared, and the length of the main body cylinder portion 2 of the sleeve 5 should be driven. It cuts according to the thickness of the concrete wall KW, applies the adhesive G to the fitting part with the insertion port 7 of the connection body 10, and inserts it in the insertion port 7.

At this time, the length adjustment of the sleeve 5 may be cut by only one of the two or by both.

At this time, it is possible to select which of the two sleeves 5 is to be cut or both of the two sleeves 5 as necessary, so that the range corresponding to the length in the field is wide and the position of the connection body 10, that is, The corresponding range to the position of the flange 6 is also wide. For example, the range which can avoid that the flange 6 hits the reinforcing bar in a wall is wide.

In addition, the wall penetration sleeve 30 is made of synthetic resin, so that the cost is low and the weight is low. Moreover, in the concrete wall with much moisture including the flange 6 for waterproofing, water resistance is good and it does not rust.

After the length adjustment and the integration of the connecting body 10 and the sleeve 5 are completed, the rebar SK is inserted into the rebar insertion hole 8a of the rebar fixing portion 8 as shown in FIG. By connecting and fixing to the rebar rebars (not shown), the wall penetration sleeve 30 is positioned and fixed within the concrete wall to be placed.

At this time, if necessary, the wire rod SZ that can be bent in the three-dimensional direction is inserted into the wire rod insertion hole 9a of the wire rod fixing portion 9 and the end of the wire rod SZ is attached to the reinforcing bar SK to fix the connection body 10. Reinforcement should be done.

Since this wire SZ has a certain rigidity, as shown in FIG. 6A, the wire fixing portion 9 above the wall penetration sleeve 30 fixed by the reinforcing bar fixing portion 8 is pressed downward. Thus, the wall penetration sleeve 30 can be reliably fixed in a more stable state by binding the end of the wire SZ to the reinforcing bar SK.

In this way, the wall penetration sleeve 30 is formed by jointly using the pair of left and right reinforcing bar fixing portions 8 used on the lower side and the pair of left and right wire rod fixing portions 9 used on the upper side. Because it is fixed, it is fixed in the mold more stably and reliably.

Moreover, since the wire SZ can be bent and its length can be freely selected, the range in which the other end of the wire SZ can be attached is wide and can be attached anywhere.

Moreover, since the reinforcing bar fixing portion 8 and the wire rod fixing portion 9 are provided at the same position in the axial direction, the wall penetration sleeve 30 can be fixed in a well-balanced manner.

In addition, when only one of the reinforcing bar fixing portion 8 and the wire rod fixing portion 9 can be used depending on the situation, only one of them can be fixed. In this case, the wall penetration sleeve 30 has two types of fixing portions. There are so many options.

Further, as shown in FIG. 6 (b), a protective device 20 provided with hexagon bolts 16 is attached to the sleeve in an auxiliary manner as needed or in place of fixing by the above-described reinforcing bar fixing portion 8 or wire rod fixing portion 9. 5, the mold WF and the wall penetration sleeve 30 are fixed such that the screw tip of the hexagon bolt 16 enters the fixing hole of the mold WF.

At this time, during this operation, the protective device 20 seals the connection portion 1 which is the opening at both ends of the wall penetration sleeve 30 to prevent the inside of the wall penetration sleeve 30 from being contaminated. The hexagonal bolt 16 serves to firmly hold and hold the wall penetration sleeve 30 to the formwork WF.

Further, the head of the hexagon bolt 16 is fitted in the hexagonal recess 12 b of the fixing portion 12, and the hexagon bolt 16 does not rotate relative to the protector 20, and the flange portion 14 of the protector 20. When the hexagon nut 16a screw-engaged with the tip of the hexagon bolt 16 is rotated and tightened in a state in which it is in contact with the mold WF, tightening is performed without particularly restricting rotation of the protector 20 side. Workability is good because it is possible.

Alternatively, the head of the hexagon bolt 16 may be brought to the mold WF side, and the hexagon nut 16a may be fitted into the hexagonal recess 12b of the protector 20 and tightened.

Further, from the protector 20 side, the protector 20 is fixed to the formwork WF by using a nail which is a fix means, without using the hexagon bolt 16. Also good.

In other words, in this protective device 20, the fixing with the hexagon bolt 16 using the fixing portion 12 and the fixing with the nail using the fixing portion (fixing means penetrating portion) 12A are selectively performed according to the situation at the site. Since it can be used, the applicability is high.

Further, even when it is not necessary to fix the protector 20 to the mold WF, the protector 20 is contaminated on the end face and the inner peripheral side of the connecting portion 1 at both ends of the wall penetration sleeve 30 or intrusion of dust from the outside. It plays a role to prevent. In this case, for example, the hole of the fixing portion 12 may be sealed with an adhesive tape, or a short hexagon bolt may be inserted in the fixing portion 21.

When the preparation of FIG. 6 is completed, the concrete is placed, and when the placement is completed and the concrete is solidified, the hexagon nut 16a tightening the hexagon bolt 16 is removed, the mold WF is removed, and the protective equipment 20 is removed. The state shown in FIG.

In this state, for example, as shown in the figure, an adhesive G is applied to the end of the pipe joint P1 that allows the connection of the square corrugated pipe SP, and the connection part 1 on one side of the wall penetration sleeve 30 is applied. It can be plugged in and fixedly connected.

At the time of placing, when the protector 20 is used for fixing, the protector 20 is firmly fastened and fixed to the mold WF with the hexagon bolt 16 inserted into the fixing portion 12, and the fitting portion 11, the connection portion 1 is firmly held, so that it is possible to overcome the concrete placement and maintain the position and posture of the wall penetration sleeve 30.

The protective device 20 has a cylindrical shape in which the fitting portion 11 and the fixing portion 12 are connected by a reinforcing bar 13, and has a sturdy structure in which the opposite side of the mold frame is closed by a lid portion 15. Therefore, the connection part 1 is hold | maintained more firmly and the opposing force to concrete placement is increased.

In this protector 20, the lid portion 15 is provided only on the side opposite to the mold frame, and the mold frame WF side is in an open state where the reinforcing bar 13 and the like can be seen. Therefore, when removing the protector 20, it is convenient because the fingertip can be inserted into the empty space of the reinforcing bar 13 or the like and easily removed.

Furthermore, since the fitting part 11 of this protective device 20 is fitted to the connection part 1 over the length of 1/3 or more of the full length of the connection part 1, it overcomes concrete placement. Further, the wall penetration sleeve 30 is held even more strongly, and the resistance to concrete placement is increased.

Moreover, since the fitting part 11 of the protective device 20 is fitted over the inner circumference of the connecting part 1 of the sleeve 5 over half the total length thereof, dust inside and outside may adhere to this part. Can be prevented, and there is no adverse effect on the adhesion of the pipe joint P1 and the maintenance of water honey by the seal.

Moreover, if the protective device 20 is left installed in this connection part 1 until it connects the pipe and pipe joint which should be connected to the connection part 1, this connection part 1 and the wall penetration sleeve which becomes the inner side It is possible to prevent the inside of 30 from being contaminated.

Further, as can be seen from FIG. 6 (b), after removing the protector 20 before connecting the pipe joint P 1 or the like, the connecting portion which becomes the wall surface of the concrete wall KW and the outside of the wall penetration sleeve 30. A level difference H corresponding to the thickness of the flange portion 14 of the removed protective device 20 is generated between the end face 1 and the end face 1.

The flange portion 14 of the protector 20 that causes such a step H is very thin, but even if there is a slight inclination in fixing the wall penetration sleeve 30 to the formwork WF, etc. The end face of the connecting portion 1 which is the outer surface of the sleeve 30 is not protruded from the wall surface of the concrete wall KW, so that there is no hindrance to the installation of a pipe joint or the like that should be installed at a right angle with respect to this wall surface. Yes.

Such many effects of the protective device 20 are exhibited as the effects of the sleeve 30 for the wall penetration sleeve 30 using this as a component.
<Reference form 1>

FIG. 7 is an explanatory view of a reference example of the wall penetration sleeve of the present invention and a method of using the reference example.

This wall penetration sleeve 30A differs from the wall penetration sleeve 30 of FIG. 4 in that the flange 6A of the connection body 10A is provided at a position offset from the center of the axial length of the connection body 10A. Yes.

In this way, as shown in FIG. 7, when it is desired to install the wall penetration sleeves 30A close to each other in the concrete wall KW to be placed by changing the direction of the connecting body 10A, the flange 6A They can be placed closer together so that they do not touch each other at their outer edges.

In addition, the wall penetration sleeve of the present invention is not limited to the above-described embodiments, and various modifications and combinations are possible within the scope of the claims and the scope of the embodiments. The technical scope includes these modifications and combinations.

The wall-penetrating sleeve of the present invention can be used in industrial fields where it is not necessary to prepare a length corresponding to the thickness of the concrete wall to be placed.

Claims (5)

A wall-penetrating sleeve embedded in a concrete wall and penetrating the concrete wall. The sleeve is formed in a cylindrical shape, and has a connecting portion to which a pipe or a pipe connecting body can be connected at one end, and the other end can be cut. Two sleeves made of synthetic resin formed in a cylindrical shape integrally with a disk-shaped flange, and a connection body made of synthetic resin provided with an insertion port of the sleeve at both ends thereof,
One or both of the two sleeves are cut , inserted into the insertion port and bonded to each other, and are fixedly connected to the connection body. 2. The wall penetration sleeve according to claim 1, wherein a central protrusion is provided at the center of the insertion port on both sides of the connecting body so that the main body cylindrical portion of the inserted sleeve comes into contact. . The connecting body includes a reinforcing bar fixing part having a reinforcing bar insertion hole for inserting a reinforcing bar supported by the rebar and a wire fixing part having a wire insertion hole for inserting a wire that can be bent in a three-dimensional direction by hand. The wall penetration sleeve according to claim 1, wherein the wall penetration sleeve is provided. 4. The wall penetration sleeve according to claim 1, wherein the connecting portion of the sleeve has a larger diameter than that of the main body cylinder portion which is another portion. 5. A method of using a wall penetration sleeve embedded in a concrete wall and penetrating the concrete wall,
It has a connection part that can be connected to a pipe or pipe connection body at one end, and has two discs made of synthetic resin that can be cut off at the other end , and has a disc-shaped flange. One connection body made of a synthetic resin having a cylindrical shape and having sleeve insertion ports at both ends thereof is prepared,
Either one or both of the other end sides of the two sleeves are cut according to the thickness of the concrete wall , and each is inserted into the insertion port and bonded, and the connection body and the two sleeves are connected. A method of using a wall penetration sleeve, wherein the wall penetration sleeve is fixed to a mold forming the concrete wall in a fixed state.

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