JP2021110366A - Water stop structure construction method, wall part penetration member, and sheet member for construction of water stop structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall-penetrating member having good workability and excellent water-stopping property, and a water-stopping structure using the wall-penetrating member. SOLUTION: A pipe body 3 of a wall portion penetrating member 1 is inserted into a through hole 15 formed in a wall portion 13. At this time, the pipe body 3 is inserted into the through hole 15 from the side where the sheet member 7 is arranged (the side opposite to the side where the water blocking member 5 is arranged). At this time, since the size of the sheet member 7 is larger than the inner diameter of the through hole 15 and the outer diameter of the water blocking member 5, when the pipe body 3 is inserted into the through hole 15, the sheet member 7 is on the insertion side of the wall portion 13. Fold in the direction. That is, at least a part of the sheet member 7 is folded into the outer peripheral side of the water blocking member 5. Therefore, the pipe body 3 can be inserted into the through hole 15 with the sheet member 7 covering at least a part of the outer peripheral portion of the water blocking member 5. [Selection diagram] Fig. 4

Description

The present invention relates to a wall penetrating member attached to a wall penetrating hole, a water blocking structure using the wall penetrating member, and the like.

Conventionally, for example, when an electric wire or a pipe connected to a facility or the like installed outdoors is pulled indoors, it is necessary to insert the pipe or the like through a wall portion that separates the outdoor and the indoors. Since it is necessary to prevent the ingress of water from the penetrating portion, a water blocking structure is formed in the penetrating portion.

As such a wall-penetrating member, for example, there is a method in which a resin bush is used, and the bush is arranged in the through hole, and the bush is fixed and water-stopped by a sealing agent such as a silicone sealant.

Further, a wall portion penetrating member that can be easily fixed by working from one side of the wall portion without using a sealing agent has been proposed (Patent Documents 1 and 2).

Japanese Unexamined Patent Publication No. 2013-057406 Japanese Unexamined Patent Publication No. 2014-101987

However, in the wet wall-penetrating structure using a sealant, there is a large variation in water-stopping property depending on the skill of the operator, and it is difficult to secure sufficient water-stopping property. Further, since it takes more than 24 hours to dry the sealant, there is a problem that it takes time to install the sealant.

On the other hand, in the dry method such as Patent Document 1 and Patent Document 2, the work can be performed from one side of the wall portion, and the workability is good because no sealing agent is used. In these methods, since the wall-penetrating member is fixed so as to sandwich the wall, it is easy to ensure the adhesion between the wall surface and the wall-penetrating member.

However, in the method of arranging the water blocking member between the flange portion and the wall surface, high water stopping property can be ensured because the influence of the uneven pattern on the outer surface of the wall surface and the water blocking member are exposed to the outside of the through hole. It can be difficult.

On the other hand, there is a method in which the water blocking member is arranged on the outer peripheral portion of the main body to form a water blocking structure between the wall portion penetrating member and the inner surface of the through hole. However, in this case, since it is necessary to insert the wall penetrating member into the through hole while crushing the water blocking member, not only the insertion resistance increases, but also the water blocking member is damaged on the inner surface of the through hole to stop the water. There is a risk that water will not be ensured. However, if the outer diameter of the water-stopping member is reduced, the amount of deformation of the water-stopping member when inserted into the through hole is reduced, and the adhesion is reduced, so that the water-stopping property may be lowered.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a wall-penetrating member having good workability and excellent water-stopping property, and a water-stopping structure using the wall-penetrating member.

In order to achieve the above-mentioned object, the first invention is a construction method for obtaining a water-stopping structure between a through hole of a wall portion and a pipe body, and a water-stopping member is provided on the outer periphery of the pipe body. A sheet member is arranged, the sheet member is arranged so as to be adjacent to the water stop member in the axial direction of the pipe body, and the outer diameter of the water stop member is larger than the through hole and the said The sheet member is larger than the water stop member, the pipe body is inserted into the through hole from the side where the sheet member is arranged, and at least a part of the sheet member is folded into the outer peripheral side of the water stop member. It is a water-stopping structure construction method characterized in that the pipe body is inserted into the through hole in a state where at least a part of the outer peripheral portion of the water-stopping member is covered by the sheet member.

After arranging the pipe body inside the through hole, the sheet member may be removed so that the outer surface of the water blocking member and the inner surface of the through hole are brought into close contact with each other.

In this case, it is desirable that a part of the sheet member is projected to the outer surface of the wall portion after the water blocking member is arranged inside the through hole.

Further, when the water-stopping member is arranged inside the through hole, the sheet member covers only a part of the outer surface of the water-stopping member, and the water-stopping member and the water-stopping member are formed in a portion other than the sheet member. The inner surface of the through hole may be brought into close contact with the entire circumference.

It is desirable that the sheet member has a hole into which the tube body is inserted and a notch formed from the hole toward the outer periphery of the sheet member.

The pipe body has a step portion whose outer diameter changes, the water blocking member is arranged on the outer peripheral portion of the large diameter portion at least in the vicinity of the step portion, and the sheet member is located in the vicinity of the step portion. , May be arranged on the small diameter side.

According to the first invention, after the pipe body is inserted into the through hole, the water blocking member can be brought into close contact with the inner surface of the through hole, so that water stopping is provided between the inner surface of the through hole and the outer surface of the pipe body. Can be secured. At this time, since at least a part of the outer peripheral side of the water blocking member is covered with the sheet member, the sliding between the water blocking member and the inner surface of the through hole can be improved and the insertability can be improved. Further, since it is possible to prevent the water blocking member from being damaged on the inner surface of the through hole, it is possible to more reliably secure the water stopping property after insertion. In this way, the seat member can play a role of ensuring slidability and protecting the water blocking member.

Further, by removing the sheet member after inserting the pipe body, the entire outer peripheral surface of the water blocking member can be brought into close contact with the inner surface of the through hole. Therefore, high water stopping property can be ensured.

In this case, the size of the seat member is set to be sufficiently large with respect to, for example, the width of the water blocking member and the length of the through hole, so that when the pipe body is inserted into the through hole, the seat member A part can be projected from the through hole. Therefore, the seat member can be easily removed by pulling out the protruding portion.

Further, even if the sheet member does not cover the entire outer peripheral surface of the water blocking member and there is a portion that is not covered by the water blocking member, the sheet member can be present as long as it exists over the entire outer peripheral surface of the water blocking member. It is not always necessary to remove it, and it may be left as it is. The water-stopping member of the portion covered by the sheet member does not come into close contact with the inner surface of the through hole, so that the water-stopping property is lowered. At least, water stoppage can be ensured at the contact portion between the water stop member and the inner surface of the through hole.

Further, by making a hole in the seat member into which the pipe body is inserted and a notch toward the outer periphery around the hole, the hole can be widened, so that the seat member can be easily attached or removed. .. In particular, when removing the seat member, it is necessary to make the hole size of the seat member wider than that of the water blocking member. Therefore, by making a notch, the seat member can be easily pulled out while widening the hole. can.

Further, a step portion consisting of a large diameter portion and a small diameter portion is formed on the outer peripheral portion of the tubular body, the water blocking member is arranged on the outer circumference of the large diameter portion, and the sheet member is arranged on the small diameter portion. Therefore, it is possible to prevent the seat member from being caught in the stepped portion with the large diameter portion and being displaced when the pipe body is inserted.

The second invention is a wall portion penetrating member that is inserted and fixed in a through hole of the wall portion, and includes a pipe body, a water blocking member and a seat member arranged on the outer periphery of the pipe body. The sheet member is arranged so as to be juxtaposed with the water blocking member in the axial direction of the pipe body, and the sheet member is a wall portion penetrating member characterized in that it is larger than the water blocking member.

The sheet member may have a hole into which the tube body is inserted and a notch formed from the hole toward the outer periphery of the sheet member.

A flange portion having an outer diameter larger than that of other small diameter portions is formed on the outer peripheral portion of the pipe body, the water blocking member is arranged on the outer peripheral portion of the flange portion, and the seat member is formed on the flange portion. It may be arranged on the small diameter side.

According to the second invention, since the sheet member makes the sliding between the water blocking member and the inner surface of the through hole good, the wall penetrating member can be easily installed in the through hole and penetrates the wall penetrating member. When the sheet member is inserted into the hole, damage to the water blocking member can be suppressed, so that high water stopping property can be ensured.

Further, by making a hole in the sheet member into which the pipe body is inserted and a notch toward the outer periphery around the hole, the sheet member can be easily pulled out while expanding the hole when the sheet member is removed. can.

Further, by forming a flange portion on the outer peripheral portion of the tubular body and forming a step portion consisting of a large diameter portion due to the flange portion and a small diameter portion other than the flange portion, the seat member can be stepped from the large diameter portion. It is possible to prevent the seat member from being caught and displaced during insertion.

The third invention is a sheet member used when a pipe body is inserted into a through hole of a wall portion to obtain a water blocking structure between the through hole and the pipe body, and the pipe body is inserted. A sheet member for constructing a waterproof structure, characterized in that the holes are provided with holes and notches formed from the holes in a plurality of directions in the outer peripheral direction.

According to the third invention, when the pipe or the wall portion penetrating member is installed in the through hole, the water blocking member can be protected and the installation can be facilitated.

According to the present invention, it is possible to provide a wall-penetrating member having good workability and excellent water-stopping property, and a water-stopping structure using the wall-penetrating member.

The perspective view which shows the wall part penetration member 1. (A) is a front view showing a wall-penetrating member 1, and (b) is a sectional view taken along line AA of (a). The figure which shows the sheet member 7. The figure which shows the process of installing a wall part penetration member 1 in a through hole 15. The figure which shows the process of installing a wall part penetration member 1 in a through hole 15. The figure which shows the process of installing a pipe body 3a which is a pipe in a through hole 15. The figure which shows the process of installing a pipe body 3b which is a pipe in a through hole 15. The figure which shows the wall part penetration member 1a. The figure which shows the other method of installing the wall part penetration member 1a in the through hole 15.

(First Embodiment)
Hereinafter, the wall-penetrating member according to the first embodiment will be described. 1 is a perspective view showing the wall penetrating member 1, FIG. 2A is a front view showing the wall penetrating member 1, and FIG. 2B is a cross-sectional view taken along the line AA of FIG. 2A. Is. The wall portion penetrating member 1 is a member that is inserted and fixed in the through hole of the wall portion.

The wall penetrating member 1 is mainly composed of a pipe body 3, a water blocking member 5, a sheet member 7, and the like. The tubular body 3 is, for example, a tubular member made of metal or resin. The tubular body 3 does not have to have a cylindrical shape as shown in the figure, and may have a cylindrical shape such as a rectangle. Further, the length of the tubular body 3 may be shorter than the diameter, and in the present invention, it is defined that the tubular body 3 also includes a ring-shaped shape having a shorter length with respect to the diameter. Further, the pipe body 3 may be composed of a plurality of members, and any known form of the wall penetrating member can be applied.

A water blocking member 5 and a sheet member 7 are arranged on the outer periphery of the pipe body 3. The water stop member 5 has a substantially ring shape and is arranged over the entire circumference of the pipe body 3. As the water blocking member 5, for example, an elastic body such as a water-expandable member or a foam that can follow and adhere to the unevenness of the inner surface of the through hole can be applied.

The seat member 7 is arranged so as to be juxtaposed with the water blocking member 5 in the axial direction of the pipe body 3 (horizontal direction in FIG. 2B). FIG. 3 is a diagram showing a seat member 7 before being attached to the pipe body 3. Although the details will be described later, the sheet member 7 is used together with the water blocking member 5 when the pipe body 3 is inserted into the through hole of the wall portion to obtain a water stopping structure between the through hole and the pipe body 3. It is a member for structural construction. The shape of the sheet member 7 does not have to be rectangular, and may be, for example, circular like the pipe body 3 and the water blocking member 5.

The seat member 7 is formed with a hole 11 into which the tubular body 3 is inserted. If the diameter of the hole 11 (C in FIG. 3) is larger than the outer diameter of the tube 3 (B in FIG. 2B), the sheet member 7 can be easily attached to the tube 3, but the hole 11 (C in FIG. 3) may be the same as or slightly smaller than the outer diameter of the tubular body 3 (B in FIG. 2B). In this case, when the seat member 7 is attached to the pipe body, the seat member 7 can be fixed to the pipe body 3 by extending so that the holes 11 expand.

Further, as shown in FIG. 3, a plurality of notches 9 may be formed from the holes 11 in a plurality of directions in the outer peripheral direction of the sheet member 7. In the illustrated example, the notches 9 are formed at four positions toward each corner of the rectangular sheet member 7. The notch 9 does not have to be completely cut in the thickness direction over the entire length. For example, a part of the notch 9 in the length direction may be connected, or may be intermittent like a perforation. Alternatively, a notch 9 may be formed only on the surface layer in the thickness direction so as to be easily cut.

The material of the sheet member 7 is not particularly limited, but it is preferably made of a resin such as polyethylene, which is smooth and has good slipperiness. The thickness of the sheet member 7 is not particularly limited, but may be, for example, about 0.1 to 0.5 mm.

Next, a construction method for obtaining a water blocking structure between the through hole of the wall portion and the pipe body by using the wall portion penetrating member 1 will be described. First, as shown in FIG. 4A, the pipe body 3 of the wall portion penetrating member 1 is inserted into the through hole 15 formed in the wall portion 13. The wall portion 13 may be a hollow wall or a double wall. At this time, the pipe body 3 is inserted into the through hole 15 from the side where the sheet member 7 is arranged (the side opposite to the side where the water blocking member 5 is arranged) (in the direction of arrow D in the drawing). Hereinafter, the side into which the wall portion penetrating member 1 is inserted (left side in the drawing) is referred to as the insertion side of the wall portion 13.

FIG. 4B is a diagram showing a state in which the tubular body 3 is inserted into the through hole 15. Here, the outer diameter of the tube 3 on the insertion portion side (B in FIG. 2B) is smaller than the inner diameter of the through hole 15 (G in FIG. 4A). Therefore, when the tubular body 3 is inserted into the through hole 15, a clearance is formed between the tubular body 3 and the inner surface of the through hole 15. On the other hand, the outer diameter of the water blocking member 5 (E in FIG. 4A) is larger than the inner diameter G of the through hole 15. Therefore, the water blocking member 5 is compressively deformed and comes into close contact with the outer surface of the pipe body 3 and the inner surface of the through hole 15.

At this time, the size of the sheet member 7 (in the case of F in FIG. 4A and a rectangular shape, for example, the length of one side) is based on the inner diameter G of the through hole 15 and the outer diameter of the water blocking member 5. When the tubular body 3 is inserted into the through hole 15, the sheet member 7 is folded in the insertion side direction of the wall portion 13. That is, at least a part of the sheet member 7 is folded into the outer peripheral side of the water blocking member 5. Therefore, the pipe body 3 can be inserted into the through hole 15 with the sheet member 7 covering at least a part of the outer peripheral portion of the water blocking member 5.

At this time, if the size of the sheet member 7 is sufficiently large, the sheet member 7 does not fit inside the through hole 15 with the wall through member 1 installed in the through hole 15, and a part of the sheet member 7 is a wall. It projects to the outer surface of the insertion side of the portion 13. Further, if the size of the sheet member 7 is large, the entire outer peripheral surface of the water blocking member 5 can be covered with the sheet member 7.

From this state, as shown in FIG. 5A, by pulling out the seat member 7 from the insertion side of the wall portion 13 (arrow H in the figure), the seat member 7 is completely pulled out from the through hole 15 and the pipe body 3. Can be removed (Fig. 5 (b)). The removal direction of the sheet member 7 may be opposite to the insertion side of the wall portion 13. By removing the seat member 7 after arranging the tubular body 3 inside the through hole 15 in this way, the entire outer surface of the water blocking member 5 and the inner surface of the through hole 15 can be brought into close contact with each other.

As described above, according to the present embodiment, it is possible to secure a water blocking structure between the outer surface of the pipe body 3 and the inner surface of the through hole 15. Further, when the pipe body 3 is inserted into the through hole 15, the outer peripheral surface of the water blocking member 5 is covered with the sheet member 7. Therefore, the sheet member 7 protects the water stop member 5 at the time of insertion, and it is possible to prevent the water stop member 5 from being rubbed and damaged on the inner surface of the through hole 15. Further, since the sheet member 7 improves the sliding property, the insertion resistance of the pipe body 3 is reduced, and even if the outer diameter of the water blocking member 5 is large, the mounting work becomes easy.

Further, since a part of the seat member 7 projects toward the outer surface side of the wall portion 13, it is easy to pinch and pull out the seat member 7. Further, since the sheet member 7 is formed with a notch 9, when the sheet member 7 is strongly pulled out, the hole 11 is widened by the notch 9, and the sheet member 7 can be easily pulled out.

(Second Embodiment)
Next, the second embodiment will be described. FIG. 6 is a diagram showing a method of constructing a water-stop structure using a pipe body 3a which is a pipe instead of a wall-penetrating member. In the following description, the configurations that perform the same functions as those of the first embodiment are designated by the same reference numerals as those in FIGS. 1 to 5, and duplicate description will be omitted.

Similar to the pipe body 3, a water blocking member 5 and a seat member 7 are provided on the outer periphery of the pipe body 3a. In this state, the tubular body 3a is inserted into the through hole 15 (arrow I in FIG. 6A). At this time, the pipe body 3a is inserted into the through hole 15 with the side on which the sheet member 7 is arranged as the insertion direction. After inserting the pipe body 3a into the through hole 15, the water blocking member 5 and the sheet member 7 are arranged on the outer periphery of the pipe body 3a so that the water stopping member 5 is located inside the through hole 15. May be moved. Even in this case, the movement of the tubular body 3a to the through hole 15 is assumed to insert the tubular body 3a into the through hole 15.

FIG. 6B is a diagram showing a state in which the water blocking member 5 of the pipe body 3a is arranged inside the through hole 15. As described above, by removing the sheet member 7 from this state, the water blocking member 5 and the inner surface of the through hole 15 can be brought into close contact with each other.

According to the second embodiment, the same effect as that of the first embodiment can be obtained. As described above, the form of the pipe body may be a wall-penetrating member through which wiring, piping, or the like is inserted, or may be the piping itself.

(Third Embodiment)
Next, a third embodiment will be described. FIG. 7 is a diagram showing a method of constructing a waterproof structure using a pipe body 3b which is a pipe having another shape. The pipe body 3b is a pipe like the pipe body 3a, but has at least a part of a step portion 17 whose outer diameter changes. That is, in the tubular body 3b, the small diameter portion 18b and the large diameter portion 18a are continuous in the longitudinal direction via the step portion 17. The outer diameter of the large diameter portion 18a is smaller than that of the through hole 15, and the outer diameter of the water blocking member 5 is smaller than the inner diameter of the through hole 15.

The water blocking member 5 is arranged on the outer peripheral portion of the large diameter portion 18a at least in the vicinity of the step portion 17. Further, the seat member 7 is arranged on the small diameter portion 18b side in the vicinity of the step portion 17. At this time, by making the diameter of the hole 11 of the seat member 7 smaller than the outer diameter of the large diameter portion 18a, the seat member 7 is caught by the step portion 17 and can be positioned and displaced.

First, as shown in FIG. 7A, the tubular body 3b is inserted into the through hole 15 from the small diameter portion 18b side (arrow J in FIG. 7A). That is, the pipe body 3b is inserted into the through hole 15 with the side on which the sheet member 7 is arranged as the insertion direction.

FIG. 7B shows a state in which the water blocking member 5 of the pipe body 3b is arranged inside the through hole 15. As described above, by removing the sheet member 7 from this state, the water blocking member 5 and the inner surface of the through hole 15 can be brought into close contact with each other.

According to the third embodiment, the same effect as that of the second embodiment can be obtained. Further, since the step portion 17 is formed, the step portion 17 functions as a stopper of the seat member 7 when the pipe body 3b is inserted into the through hole 15, and the seat member 7 can be prevented from being displaced.

(Fourth Embodiment)
Next, a fourth embodiment will be described. FIG. 8 is a diagram showing a wall portion penetrating member 1a. The wall penetrating member 1a is substantially the same as the wall penetrating member 1, but has a flange portion 19 having a larger outer diameter than the other portion on the outer peripheral portion near one end of the tubular body 3. The flange portion 19 has a large diameter portion, and a portion other than the flange portion has a small diameter portion 18b. That is, a step portion 17 whose outer diameter changes is formed at the end portion of the tubular body 3. The flange portions 19 do not have to be the end portions of the tubular body 3, and may be arranged at a plurality of positions in the axial direction of the tubular body 3. The outer diameter of the flange portion 19 is smaller than the through hole 15, and the outer diameter of the water blocking member 5 is smaller than the inner diameter of the through hole 15.

The water stop member 5 is arranged on the outer peripheral portion of the flange portion 19. Further, the seat member 7 is arranged on the back surface side (small diameter portion 18b side) of the flange portion 19. As shown in FIG. 8, the seat member 7 may be sufficiently larger than the water blocking member 5 as in each of the above-described embodiments, but in the present embodiment, the size of the seat member 7 is large. It may be smaller than the outer diameter of the water blocking member 5.

FIG. 9 is a diagram showing a method of constructing a water blocking structure using a wall portion penetrating member 1a in which the size of the sheet member 7 is smaller than the outer diameter of the water blocking member 5. In order to install the wall through member 1a in the through hole, as shown in FIG. 9A, the pipe body 3 of the wall through member 1a is inserted into the through hole 15 from the small diameter portion 18b side (FIG. 9 (FIG. 9). arrow K) in a). That is, the pipe body 3 is inserted into the through hole 15 with the side on which the sheet member 7 is arranged as the insertion direction.

FIG. 9B shows a state in which the water blocking member 5 of the pipe body 3 is arranged inside the through hole 15. As described above, by removing the sheet member 7 from this state, the water blocking member 5 and the inner surface of the through hole 15 can be brought into close contact with each other, but in the present embodiment, a part of the sheet member 7 is not necessarily a part. , It is not necessary to project to the outer periphery of the wall surface.

As shown in the enlarged view of the L portion of FIG. 9B, when the size of the sheet member 7 is small, the sheet member 7 does not completely cover the outer periphery of the water blocking member 5, and the outer peripheral surface of the water blocking member 5 is not completely covered. Part of it comes into direct contact with the inner surface of the through hole 15. In this way, when the water blocking member 5 is arranged inside the through hole 15, even if only a part of the outer peripheral surface of the water blocking member 5 is covered with the sheet member 7, the range covered by the sheet member 7 , The sliding between the water blocking member 5 and the inner surface of the through hole 15 can be improved, and the insertion work can be facilitated.

In this case, if the contact portion between the water blocking member 5 and the through hole 15 (that is, the portion not covered by the sheet member 7) is continuous over the entire circumference of the water blocking member 5, the water blocking portion is the portion. Can be secured. That is, it is not necessary to remove the sheet member 7 because the water blocking property can be ensured by bringing the water blocking member 5 and the inner surface of the through hole 15 into close contact with each other at a portion other than the sheet member 7.

According to the fourth embodiment, the same effect as that of the first embodiment can be obtained. In this way, the waterproof structure can be obtained without removing the sheet member 7.

In order to use in such a state, half of the difference between the outer diameter of the small diameter portion 18b (tube body) and the diameter of the seat member 7 at the portion where the maximum diameter of the seat member 7 is reached (that is, the seat member 7). The radial protrusion allowance from the small diameter portion 18b (tube body) is larger than the difference between the outer diameter of the small diameter portion 18b (tube body) and the inner diameter of the through hole 15, and the small diameter portion 18b (tube body) It may be smaller than the difference between the outer diameter and the inner diameter of the through hole 15 plus the thickness of the wall portion 13.

Similarly, when the seat member 7 is projected onto the outer surface of the wall portion 13, the difference between the outer diameter of the small diameter portion 18b (tube body) and the diameter of the seat member 7 at the portion where the maximum diameter of the seat member 7 is reached is half ( That is, the radial protrusion allowance from the small diameter portion 18b (tube body) of the sheet member 7) adds the thickness of the wall portion 13 to the difference between the outer diameter of the small diameter portion 18b (tube body) and the inner diameter of the through hole 15. It should be larger than the one you did.

Although the embodiment of the present invention has been described with reference to the attached drawings, the technical scope of the present invention does not depend on the above-described embodiment. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the technical ideas described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

For example, it goes without saying that the above-described embodiments can be combined with each other. For example, in the first to third embodiments, the sheet member 7 may cover only a part of the outer peripheral surface of the water blocking member 5, and in the fourth embodiment, the entire outer peripheral surface of the water blocking member 5 may be covered by the sheet member 7. After installing so as to cover with, the seat member 7 may be removed.

1, 1a ……… Wall penetrating members 3, 3a, 3b ……… Tube 5 ………… Water stop member 7 ………… Sheet member 9 ………… Notch 11 …… Hole 13 ………… Wall 15 …… …… Through hole 17 ………… Step portion 18a ………… Large diameter portion 18b ………… Small diameter portion 19 ………… Flange portion

Claims (10)

It is a construction method to obtain a waterproof structure between the through hole in the wall and the pipe body.
A water blocking member and a seat member are arranged on the outer periphery of the pipe body, and the seat member is arranged so as to be adjacent to the water stopping member in the axial direction of the pipe body.
The outer diameter of the water blocking member is larger than the through hole, and the sheet member is larger than the water stopping member.
The tube body is inserted into the through hole from the side where the sheet member is arranged, and the tube body is inserted into the through hole.
The pipe body is inserted into the through hole in a state where at least a part of the sheet member is folded toward the outer peripheral side of the water blocking member and at least a part of the outer peripheral portion of the water blocking member is covered by the sheet member. A waterproof structure construction method characterized by insertion. The water-stopping structure according to claim 1, wherein after arranging the pipe body inside the through-hole, the sheet member is removed to bring the outer surface of the water-stopping member into close contact with the inner surface of the through-hole. Construction method. The method for constructing a water blocking structure according to claim 2, wherein after the water stopping member is arranged inside the through hole, a part of the sheet member is projected to the outer surface of the wall portion. When the water stop member is arranged inside the through hole, the sheet member covers only a part of the outer surface of the water stop member, and the water stop member and the through hole are formed in a portion other than the sheet member. The method for constructing a waterproof structure according to claim 1, wherein the inner surface of the water is brought into close contact with the entire circumference. The sheet member according to any one of claims 1 to 4, wherein the sheet member has a hole into which the tubular body is inserted and a notch formed from the hole toward the outer periphery of the sheet member. The described waterproof structure construction method. The tubular body has a step portion whose outer diameter changes.
The first aspect of the present invention, wherein the water blocking member is arranged on the outer peripheral portion of the large diameter portion at least in the vicinity of the step portion, and the sheet member is arranged on the small diameter portion side in the vicinity of the step portion. The waterproof structure construction method according to any one of claims 5. A wall-penetrating member that is inserted and fixed in the through-hole of the wall.
With the tube
A water stop member and a sheet member arranged on the outer periphery of the pipe body, and
Equipped with
The seat member is arranged so as to be adjacent to the water blocking member in the axial direction of the pipe body.
The wall portion penetrating member, characterized in that the sheet member is larger than the water blocking member. The wall-penetrating member according to claim 7, wherein the sheet member has a hole into which the tube body is inserted and a notch formed from the hole toward the outer periphery of the sheet member. A flange portion having an outer diameter larger than that of other small diameter portions is formed on the outer peripheral portion of the tubular body.
The wall-penetrating member according to claim 7 or 8, wherein the water blocking member is arranged on the outer peripheral portion of the flange portion, and the sheet member is arranged on the small diameter portion side of the flange portion. .. A sheet member used when a pipe body is inserted into a through hole in a wall portion to obtain a water blocking structure between the through hole and the pipe body.
The hole into which the tube is inserted and
Notches formed from the holes in a plurality of directions in the outer peripheral direction,
A sheet member for construction of a waterproof structure, characterized in that it is provided with.

Images