JP6905901B2 - Tube guide - Google Patents

Description

The present invention relates to a pipe guide provided on a wall such as an outer wall of a building, and more particularly to a pipe guide for guiding pipes such as a hot water supply pipe, a water supply pipe, a reheating pipe, and a gas pipe penetrating the wall.

For example, in a building such as a detached house or an apartment house, pipes such as a hot water supply pipe, a water supply pipe, a reheating pipe, and a gas pipe are connected to an outdoor water heater through an outer wall (see Patent Document 1 and the like). .. The gap between the inner circumference of the through hole in the wall and the outer circumference of the pipe is sealed with a sealing material such as a caulking material or a sealing material.

It is also known that a pipe guide is provided in the through hole (see Patent Document 2 and the like). The pipe guide of Patent Document 2 has a cover that covers the through hole from the outdoor side, and a tubular portion provided on the cover. The tubular portion protrudes diagonally upward from the cover toward the outdoor side. Piping is passed through the cylinder.

Japanese Unexamined Patent Publication No. 2001-159167 Japanese Unexamined Patent Publication No. 2003-254471

In the conventional construction method, it is skillful to seal the gap of the through hole of the outer wall after passing the pipe with only caulking material and sealing material so that rainwater and condensed water do not enter, and finish it with good appearance. It's not easy.
When a pipe guide as in Patent Document 2 is used, although the variation in finish is small, rainwater or dew condensation water can enter the indoor side from between the cylinder portion and the pipe. In particular, if the tubular portion through which the pipe is passed is tilted upward toward the outdoor side, once rainwater enters the tubular portion, it easily flows to the indoor side. Depending on the degree of infiltration, wall materials and the like may corrode.
In view of such circumstances, it is an object of the present invention to provide a pipe guide capable of preventing dew condensation water and rainwater from entering the indoor side.

In order to solve the above problems, the present invention is a pipe guide that guides a pipe penetrating a wall of a building.
A mounting member having an insertion hole for passing the pipe and being fixed to the wall,
It is provided with a tubular portion that protrudes from the mounting member to the outdoor side and has an inside that communicates with the insertion hole and allows the pipe to pass through.
A dam is projected from the bottom of the inner peripheral surface of the cylinder.
A drain hole is formed at the bottom of a portion of the inner peripheral surface of the tubular portion on the outdoor side of the dam portion.

Piping such as a water supply pipe, a hot water supply pipe, a reheating pipe, and a gas pipe is inserted into the insertion hole and the cylinder portion of the pipe guide. When infiltrated water such as dew condensation water or rainwater enters between the pipe and the cylinder portion, it can be blocked when it flows to the dam portion. Further, the dammed ingress water can be discharged from the drain hole. Therefore, it is possible to prevent the infiltrated water from infiltrating into the members such as the wall material on the indoor side of the pipe guide, and it is possible to prevent the corrosion of the wall material and the like.

It is preferable that the dam portion is provided at the end of communication with the insertion hole on the inner peripheral surface of the tubular portion.
As a result, intrusion water such as dew condensation water and rainwater can be blocked at the boundary between the cylinder portion and the mounting member, and the intrusion water can be prevented from flowing into the insertion hole and thus into the indoor side from the insertion hole.

It is preferable that a step is formed between at least the bottoms of the inner peripheral surface of the tubular portion and the inner peripheral surface of the insertion hole, and the step serves as the damming portion.
According to the pipe guide, even if infiltrated water such as dew condensation water or rainwater enters the cylinder portion, it can be reliably blocked at the step. The peripheral portion of the insertion hole in the mounting member can be used as a blocking portion, and it is not necessary to separately provide a dedicated blocking portion, so that the structure can be simplified.

It is preferable that the inner diameter of the insertion hole is smaller than the inner diameter of the tubular portion.
As a result, an annular step is formed between the inner peripheral surface of the tubular portion and the inner peripheral surface of the insertion hole. This step serves as the blocking portion, and can block invading water such as condensed water and rainwater. Further, a part of the mounting member can be used as a blocking portion, and the structure can be simplified.

The drain hole is preferably arranged near the dam.
It is more preferable that the drain hole reaches the dam.
As a result, the infiltrated water blocked by the dam portion can be reliably discharged from the drain hole, and the liquid pool can be reliably prevented from forming around the dam portion.

It is preferable that the tubular portion projects diagonally upward from the mounting member toward the outdoor side.
As a result, the pipe can be passed diagonally in the wall so as to be inclined upward toward the outside. Therefore, it is possible to relax the degree of bending when the pipe that is exposed to the outside from the through hole is bent toward the water heater or the like above. Alternatively, the degree of bending when bending the pipe raised from under the floor or the like toward the through hole can be relaxed.
When the tubular portion protrudes diagonally upward from the mounting member toward the outdoor side, a dam portion and a drain hole are provided so that the infiltrated water entering the tubular portion flows down toward the indoor side. Is especially effective. That is, the infiltrated water that has flowed down can be reliably blocked by the dam and discharged from the drain hole.

Further equipped with a tube sealing member made of a tubular soft material,
The pipe sealing member includes an annular mounting portion that is fitted into the tubular portion and a tubular portion that protrudes from the mounting portion to the outdoor side, and the inner diameter of the tubular mouth portion at the tip of the tubular portion is the pipe. It is preferable that the diameter is smaller than the outer diameter of.
As a result, the tube mouth portion is brought into close contact with the outer peripheral surface of the pipe. Therefore, it is possible to prevent rainwater, condensed water, and the like from entering the pipe guide from between the pipe sealing member and the pipe. Even if it does get in, the infiltrated water can be reliably blocked by the dam and discharged from the drain hole.

According to the present invention, it is possible to prevent dew condensation water and rainwater from entering the indoor side in a pipe guide that guides pipes such as a hot water supply pipe that penetrates a building wall.

FIG. 1 is a cross-sectional view of an outer wall of a building provided with a pipe guide according to the first embodiment of the present invention. FIG. 2 is an exploded cross-sectional view of the pipe guide. FIG. 3 is an exploded perspective view of the pipe guide. FIG. 4 is a bottom view of the pipe guide member of the pipe guide. FIG. 5 is a cross-sectional view of the outer wall of the building provided with the pipe guide according to the second embodiment of the present invention. FIG. 6 is an exploded perspective view of the pipe guide of the second embodiment. FIG. 7A is a side view of the pipe seal member of the pipe guide of the second embodiment. FIG. 7B is a perspective view of the pipe sealing member as viewed from the outdoor side. FIG. 7C is a perspective view of the pipe sealing member as viewed from the indoor side.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<First Embodiment>
FIG. 1 shows the outer wall 1 (wall) of the building. The outer wall 1 includes a wall board material 10 (wall body) such as structural plywood and a siding 12 (exterior material). A ventilation layer 15 is formed between the wall plate material 10 and the siding 12. A through hole 19 is formed in the outer wall 1. The through hole 19 includes a hole portion 19a of the wall plate material 10 and a hole portion 19b of the siding 12.

The pipe 2 is passed through the through hole 19. Examples of the type of pipe 2 include a hot water supply pipe, a water supply pipe, a reheating pipe, and a gas pipe. A heat insulating material (not shown) is provided on the outer circumference of the hot water supply pipe or the like.
Although not shown, the indoor end (right side in FIG. 1) of the pipe 2 is connected to a hot water supply facility such as a bathroom or a kitchen. The pipe 2 extends from the hot water supply facility under the floor to the outer wall 1, rises along the wall plate material 10, penetrates the outer wall 1 through the through hole 19, and is pulled out to the outside.
The exit portion from the through hole portion 19b to the outside of the pipe 2 is bent upward at an obtuse angle to form a bent portion 2c.
As shown by the alternate long and short dash line in FIG. 1, the end of the pipe 2 on the outdoor side (left side in FIG. 1) is connected to the outdoor water heater 6. The water heater 6 is arranged on the outdoor side surface of the siding 12 at a place higher than the through hole 19.

As shown in FIG. 1, the outer wall 1 is provided with a pipe guide 3 for guiding the pipe 2. The pipe 2 in the pipe guide 3 is inclined upward toward the outdoor side.
As shown in FIGS. 2 and 3, the pipe guide 3 includes a pipe guide member 20 and a pipe seal member 30. The pipe guide member 20 has a mounting member 21 and a tubular portion 22 integrally. The material of the tube guide member 20 is preferably a metal such as aluminum or iron, but is not limited to this, and may be a resin such as polyethylene (PE) or polypropylene (PP).
The mounting member 21 and the tubular portion 22 of the pipe guide member 20 are integrally molded by casting or injection molding, but the present invention is not limited to this, and the pipe guide member 20 may be molded separately and then joined by welding or welding.

The mounting member 21 is, for example, a horizontally long rectangle (polygon). The mounting member 21 is formed with one or more insertion holes 21c. In FIG. 3, the number of insertion holes 21c is not limited to two, but may be three or more. Insertion holes 21c for the number or types of pipes 2 may be formed in one mounting member 21.

As shown in FIGS. 1 and 3, the mounting member 21 is fixed to the outdoor side surface (left side surface in FIG. 1) of the wall plate material 10 by the adhesive tape 4 (FIG. 1) and the screw 5 (FIG. 3). The adhesive tape 4 preferably has water stopping property.
The insertion hole 21c communicates with the hole portion 19a.
The pipe 2 that has passed through the hole portion 19a is passed through the insertion hole 21c.

As shown in FIG. 2, an R chamfered portion 21e is formed at a corner portion formed by an indoor side surface (right side surface in FIG. 2) of the mounting member 21 and an inner peripheral surface of the insertion hole 21c. This prevents the outer peripheral surface of the pipe 2 itself and the heat insulating material from being damaged.
The corner portion formed by the outdoor side surface (left side surface in FIG. 2) of the mounting member 21 and the inner peripheral surface of the insertion hole 21c may also be R-chamfered.

As shown in FIGS. 2 and 3, a tubular portion 22 is provided at a position corresponding to each insertion hole 21c in the mounting member 21.
The tubular portion 22 is formed in a cylindrical shape and protrudes from the mounting member 21 toward the outside. Moreover, the tubular portion 22 projects diagonally upward toward the outdoor side. Suitable angle alpha ₂₂ the central axis L ₂₂ of the cylindrical portion 22 to the horizontal plane, depending on such position in the outer wall through direction and water heater 6 of the pipe 2, for example, α _{22 = 5} ° ~60 ° about.
The tip surface (outdoor side surface) of the tubular portion 22 is oriented vertically. The side view shape of the tubular portion 22 is a parallelogram.

As shown in FIG. 2, the inside of the tubular portion 22 communicates with the insertion hole 21c.
The inner diameter of the tubular portion 22 is larger than the inner diameter of the insertion hole 21c. Therefore, an annular step 21d is formed between the inner peripheral surface of the tubular portion 22 and the inner peripheral surface of the insertion hole 21c. The step 21d is composed of a peripheral portion of the insertion hole 21c in the mounting member 21.
The lower portion of the annular step 21d in the circumferential direction is the dam 23. In other words, the dam 23 is projected from the bottom of the communication end with the insertion hole 21c on the inner peripheral surface of the tubular portion 22.

As shown in FIGS. 2 and 4, a drain hole 24 is formed at the bottom of the portion of the tubular portion 22 on the outdoor side (left side in FIG. 2 and upper side in FIG. 4) of the dam portion 23. The drain hole 24 penetrates from the inner circumference to the outer circumference at the bottom of the tubular portion 22. Preferably, the drain hole 24 is located near the dam 23. More preferably, the indoor end (right end in FIG. 2) of the drain hole 24 reaches the dam 23.

As shown in FIG. 1, the pipe 2 is passed through the insertion hole 21c into the inside of the tubular portion 22.
As shown in FIG. 2, an R chamfered portion 22e is formed at a corner portion formed by the front end surface (left end surface in FIG. 2) and the inner peripheral surface of the tubular portion 22. This prevents the outer peripheral surface of the pipe 2 itself and the heat insulating material from being damaged.

As shown in FIG. 1, a pipe sealing member 30 is provided at the tip of the tubular portion 22. The material of the pipe sealing member 30 is made of a soft material such as a soft resin or rubber.
As shown in FIG. 2, the pipe sealing member 30 includes an annular mounting portion 31 and a tubular portion 32, and has a substantially tubular shape as a whole. The mounting portion 31 has a parallelogram-shaped oblique cylinder when viewed from the side. The central axis of the mounting portion 31 is inclined so as to be coaxial with _{the central axis L 22 of the tubular portion 22.}
One or more (two in the figure) annular seal protrusions 31c are provided on the inner peripheral surface of the mounting portion 31.

As shown in FIG. 2, the tubular portion 32 is connected to the outdoor side end portion (left end portion in FIG. 2) of the mounting portion 31. The tubular portion 32 has a tapered portion 32a and a tubular portion 32b. The tapered portion 32a is tapered as it protrudes from the mounting portion 31 toward the outside. A tubular mouth portion 32b having a constant diameter is connected to the tip portion of the tapered portion 32a.

As shown in FIG. 2, the tubular portion 32 projects obliquely upward from the mounting portion 31 toward the outdoor side (left side in FIG. 2). Moreover, the inclination of the tubular portion 32 is steeper than the inclination of the mounting portion 31 and the tubular portion 22. That is, as shown in FIG. 1, the horizontal angle α _{32 of the central axis L 32} of the tubular portion 32 is larger than the _{horizontal angle α 22} of the mounting portion 31 and the tubular portion 22 _{(α 32} > α ₂₂ ).

_{As shown in FIGS. 1 and 2, the inner diameter φ 32a} of the communication end (right end in FIG. 2) of the tapered portion 32a with the mounting portion 31 is larger than the outer diameter φ _{2 of the pipe 2 (φ 32a} > φ ₂ ).
The inner diameter φ _32b of the cylinder mouth portion 32b is smaller than _{the outer diameter φ 2} of the pipe 2 in the natural state _{(φ 32b} <φ ₂ ). The natural state means a state in which a force such as a diameter-expanding force is not applied to the tubular portion 32.

As shown in FIG. 1, the mounting portion 31 of the pipe sealing member 30 is fitted on the outer circumference of the tubular portion 22. The seal protrusion 31c is in close contact with the outer peripheral surface of the tubular portion 22 over the entire circumference. The tubular portion 32 projects toward the outside of the tubular portion 22.

As shown in FIG. 1, the pipe 2 that has passed through the tubular portion 22 is passed through the tubular portion 32 of the pipe sealing member 30. The tube mouth portion 32b is expanded and deformed by inserting a pipe 2 having a diameter larger than that of the tube mouth portion 32b.

The tubular portion 32 is inserted into the through hole portion 19b of the siding 12. At least a part of the pipe sealing member 30 appears outdoors.
Although not shown, a sealing material such as a caulking material or a sealing material is filled between the inner peripheral surface of the through hole portion 19b and the pipe sealing member 30.

The pipe 2 is constructed as follows, for example.
After constructing the wall plate material 10 of the outer wall 1, the pipe guide member 20 is installed on the wall plate material 10. Specifically, the pipe guide member 20 is directed to the outdoor side surface of the wall plate material 10, and the insertion hole 21c is aligned with the through hole portion 19a. Then, the pipe guide member 20 is fixed to the wall plate material 10 with the adhesive tape 4 and the screw 5. At this time, the adhesive tape 4 may be attached straight along each side of the quadrangular mounting member 21. Therefore, the sticking work of the adhesive tape 4 can be facilitated as compared with the case where the mounting member 21 has a circular shape. Further, the adhesive tape 4 can ensure water stoppage between the pipe guide member 20 and the wall plate material 10.

A pipe seal member 30 is fitted in the cylinder portion 22. At this time, the seal protrusion 31c is elastically compressed and deformed so as to be brought into close contact with the tubular portion 22. As a result, the pipe sealing member 30 and the cylinder portion 22 can be liquid-tightly sealed.

Subsequently, the pipe 2 raised from under the floor along the wall material 10 is bent toward the outdoor side and passed through the through hole portion 19a, the insertion hole 21c, the tubular portion 22, and the tubular portion 32 in this order.
By inclining the tubular portion 22 and the tubular portion 32 upward toward the outdoor side, the pipe 2 in the pipe guide 3 can be passed obliquely so as to be inclined upward toward the outdoor side.
Further, by making the inclination of the tubular portion 32 steeper than the inclination of the tubular portion 22 (α ₃₂ > α ₂₂ ), the pipe 2 is bent further upward inside the pipe guide 3 and then moved to the outdoor side. Can be pulled out.
When the pipe 2 is passed through the cylinder mouth portion 32b of the tubular portion 32, the cylinder mouth portion 32b is elastically expanded in diameter and deformed so as to be brought into close contact with the outer peripheral surface of the pipe 2. As a result, the pipe sealing member 30 and the pipe 2 can be liquid-tightly sealed.

Further, a siding 12 is installed. The pipe 2 and the pipe seal member 30 are passed through the through hole portion 19b of the siding 12. The inner peripheral surface of the through hole portion 19b and the pipe sealing member 30 are sealed by filling with a caulking material or a sealing material (not shown).
After installing the water heater 6 on the outdoor side surface of the siding 12, the pipe 2 is connected to the water heater 6. That is, the pipe 2 pulled out from the pipe guide 3 to the outside is bent upward and extended toward the water heater 6. Since the pipe guide 3 and the pipe 2 inside the pipe guide 3 are tilted upward toward the outdoor side, the degree of bending (curvature or bending angle) of the bent portion 2c of the pipe 2 after being pulled out from the pipe guide 3 can be adjusted. Can be relaxed. Moreover, since the pipe 2 is bent further upward inside the pipe guide 3 by setting _{α 32} > α _{22, the degree of bending of the bent portion 2c can be further relaxed.}
The construction procedure can be modified as appropriate.

According to the pipe guide 3, as described above, the sealing at the cylinder mouth portion 32b can prevent rainwater and dew condensation water from entering the pipe guide 3 from between the pipe sealing member 30 and the pipe 2.
Even if rainwater or dew condensation water enters the pipe guide 3, the invading water can be reliably blocked by the dam 23. As a result, it is possible to prevent the infiltrated water from entering the through hole portion 19a through the insertion hole 21c and infiltrating into the wall plate material 10.
The infiltrated water blocked by the dam 23 can be discharged from the drain hole 24. As a result, it is possible to prevent the formation of a puddle around the dam portion 23, and it is possible to reliably prevent the water from overflowing from the dam portion 23 and infiltrating into the wall plate material 10 or the like.
Moreover, since the drain hole 24 reaches the dam portion 23, it is possible to surely prevent the formation of a puddle and surely drain the water.
In particular, since the pipe guide 3 is inclined downward toward the indoor side, intrusion water tends to flow toward the indoor side, but by providing the weir portion 23 and the drain hole 24, the wall It is possible to reliably prevent the infiltration of water into the plate material 10 and the like.
As a result, corrosion of the wall plate material 10 can be prevented.
By using a part of the mounting member 21 as the dam 23, the structure of the pipe guide 3 can be simplified.

Next, other embodiments of the present invention will be described. In the following embodiments, the same reference numerals are given to the drawings for configurations that overlap with the above-described embodiments, and the description thereof will be omitted.
The shapes of the pipe guide member 20 and the pipe seal member 30 can be changed as appropriate.
<Second Embodiment>
5 and 7 show a second embodiment of the present invention. As shown in FIGS. 5 and 6, in the pipe guide 3B of the second embodiment, the annular outdoor side end surface of the tubular portion 22 of the pipe guide member 20 is _{orthogonal to the axis L 22} in the circumferential direction. It protrudes to the outdoor side (left side in FIG. 5) toward the lower side. The side view shape of the tubular portion 22 is trapezoidal.
As shown in FIG. 7, the mounting portion 31 of the pipe sealing member 30 has a straight cylinder shape (annular shape). As shown in FIG. 5, the mounting portion 31 is inclined so as to be arranged on the same axis as the tubular portion 22, and is fitted on the outer circumference of the tubular portion 22.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the tubular portion 22 may be orthogonal to the mounting member 21, and the central axis L ₂₂ of the tubular portion 22 may be oriented horizontally (α ₂₂ = 0 °). In accordance with this, the central axis of the pipe sealing member 30 may be oriented horizontally. In this case, the pipe 2 is inserted horizontally in the pipe guide.
Further, the pipe guide may be tilted downward toward the outdoor side.
The damming portion may be provided at least at the bottom of the inner peripheral surface of the tubular portion 22 in the circumferential direction, and may not be provided on the upper portion or the side portion of the inner peripheral surface of the tubular portion 22.
The damming portion may be provided separately from the mounting member 21. The damming portion may project from the bottom of the inner peripheral surface of the tubular portion 22 on the outdoor side of the mounting member 21.
A plurality of dams may be provided at intervals in the axial direction of the tubular portion 22.
The tip end portion of the tubular portion 22 may be inserted into the through hole portion 19b of the siding 12 and protrude outdoors. The pipe seal member 30 may be attached to the protruding portion.
Alternatively, the entire pipe sealing member 30 may be retracted indoors from the siding 12.
The shape of the mounting member 21 is not limited to a rectangle (quadrangle), and may be a triangle, a pentagon, a hexagon, or any other polygon.
The pipe guide member 20 and the pipe seal member 30 may be integrally connected.
The pipe sealing member 30 may be omitted.

The present invention can be applied to, for example, a hot water supply piping facility for a house.

1 Outer wall (wall)
2 Piping 3, 3B Pipe guide 19 Through hole 21 Mounting member 21c Insertion hole 21d Step 22 Tsutsuguchi 23 Damping part 24 Drainage hole 30 Pipe sealing member 31 Mounting part 32 Cylindrical part 32b Tsutsuguchi part

Claims (5)

A pipe guide that guides pipes that penetrate the walls of a building.
An indoor side surface and an outdoor side surface along the wall, a mounting member having an insertion hole penetrating from the indoor side surface to the outdoor side surface and passing the pipe through the wall, and a mounting member fixed to the wall.
Wherein the protruding from the outdoor side surface of the mounting member to the outdoor side, and a cylindrical portion whose inside is passed through the pipe in communication with the insertion hole,
The lower end of the corner between the insertion hole and the outdoor side surface of the mounting member is arranged above the lower end of the communication end with the insertion hole on the inner peripheral surface of the tubular portion, and the insertion in the mounting member. A step from the lower end of the communication end to the lower end of the corner of the peripheral portion of the hole constitutes a weir portion projecting from the bottom of the inner peripheral surface of the cylinder to the top along the wall. Weir
A pipe guide characterized in that a drain hole is formed at the bottom of a portion of the inner peripheral surface of the tubular portion on the outdoor side of the dam portion. The pipe guide according to claim 1, wherein the inner diameter of the insertion hole is smaller than the inner diameter of the tubular portion. The pipe guide according to claim 1 or 2 , wherein the drain hole reaches the dam portion. The pipe guide according to any one of claims 1 to 3 , wherein the tubular portion projects obliquely upward from the mounting member toward the outdoor side. Further equipped with a tube sealing member made of a tubular soft material,
The pipe sealing member includes an annular mounting portion that is fitted into the tubular portion and a tubular portion that protrudes from the mounting portion to the outdoor side, and the inner diameter of the tubular mouth portion at the tip of the tubular portion is the pipe. The pipe guide according to any one of claims 1 to 4 , wherein the diameter is smaller than the outer diameter of the above.

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