JP2016133168A - Waterproof cover, caulking material filling method for waterproof cover and waterproof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a waterproof treatment with caulking material to be easily carried out.SOLUTION: A waterproof structure between a peripheral edge part of a through-pass hole Wa formed at a wall W and a through-pass member (a joint connection part 13 of a gas plug 1) entered into the through-pass hole Wa comprises a waterproof cover C and the first and second packings 5, 6. The waterproof cover C is fixed to the surface of the outer wall Wo under a state in which the joint connection part 13 is passed. The waterproof cover C has an annular groove part 86a and a releasing side of the groove part 86a is closed by the surface of the outer wall Wo. Caulking material is poured from a pouring port 86b into the groove part 86a and discharged out of a discharging port 86c to cause caulking material to be filled in the groove part 86a.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a waterproof cover having a structure suitable for filling a caulking material, a method for filling the waterproof cover with a caulking material, and a waterproof structure provided with the waterproof cover.

The waterproof structure disclosed in Patent Document 1 prevents rainwater from entering between a peripheral portion of a through hole formed in a wall and a penetrating member that enters the through hole.
This waterproof structure includes an annular waterproof cover fixed to the surface of the wall on the outdoor side. A space between the waterproof cover and the outer periphery of the penetrating member is sealed by an annular first seal member, and a space between the waterproof cover and the outdoor surface of the wall is sealed by an annular second seal member.

Japanese Utility Model Publication No. 63-94375

In the waterproof structure described in Patent Document 1, when the wall surface (the surface on the outdoor side of the wall) has irregularities, for example, when the wall surface is configured by a tile, a concave portion is generated at the joint portion of the tile. Even if the second seal member is pressure-bonded to the wall surface, the sealing action at the tile joint is weakened.
Therefore, on the outer side in the radial direction of the second seal member, waterproofing is performed by interposing a caulking material between the waterproof cover and the wall surface. More specifically, the waterproof cover is fixed to the wall surface in a state where the caulking material is applied to the wall surface in advance, and the caulking material is cured to seal between the waterproof cover and the wall surface. In this waterproofing treatment with caulking material, extra caulking material is applied to the wall surface in advance, the waterproof cover is pressed against the wall surface and fixed, and then the caulking material protruding from the outer peripheral edge of the waterproof cover is removed. However, the work was complicated.

  The present invention was made in order to solve the above-mentioned problem, and is a waterproof cover, an annular groove portion filled with a caulking material, an injection port that communicates with the groove portion and injects the caulking material, And a discharge port that is communicated with the groove and discharges the caulking material.

  According to the said structure, the caulking material inject | poured from the injection hole flows through an annular groove part, and reaches an exhaust port. When the caulking material is discharged from the discharge port, the filling of the caulking material into the groove is completed. By visually confirming the discharge of the caulking material from the discharge port, a necessary amount of the caulking material can be filled in the waterproof cover. Moreover, the filling operation of the caulking material is also easy.

Preferably, the discharge port is separated from the injection port by 180 ° in the circumferential direction.
According to the said structure, a caulking material can be reliably filled to the cyclic | annular groove part.

Preferably, a window portion communicating with the groove portion is formed between the inlet and the outlet.
According to the said structure, the filling state of the caulking material from an injection port to a discharge port can be confirmed visually.

According to another aspect of the present invention, in the method of filling the waterproof cover with the caulking material, an annular groove, an inlet connected to the groove, and an outlet connected to the groove at a position away from the inlet in the circumferential direction, A waterproof cover provided with a bonding target, the open side of the groove is closed with the bonding target, and a caulking material is injected from the injection port in a state where the waterproof cover is bonded to the bonding target. The caulking material travels through the groove and is directed to the discharge port. After confirming that the caulking material is discharged from the discharge port, the injection of the caulking material is terminated.
According to this method, the caulking material can be filled into the waterproof cover with good workability.

Preferably, the discharge port is located at a position 180 ° away from the injection port in the circumferential direction, and the caulking material injected from the injection port and directed to the discharge port proceeds in two ways in the groove.
According to the said structure, since a caulking material advances in the groove part of the two directions from an injection port to a discharge port, it can be made to fill a caulking material to the whole cyclic | annular groove part.

Still another embodiment of the present invention is a waterproof structure between a peripheral portion of a through hole formed in a wall and a penetrating member that enters the through hole, and includes the waterproof cover, and the waterproof cover has an annular shape. The wall is fixed to the outdoor surface of the wall through the penetrating member, the open side of the groove portion of the waterproof cover is closed by the outdoor surface of the wall, and the waterproof cover and the penetrating member An annular first seal member that seals between the outer periphery of the wall and an annular second seal member that seals between the waterproof cover and a surface on the outdoor side of the wall. The groove portion is disposed radially inward, and the groove portion is filled with a caulking material injected from the injection port toward the discharge port.
According to this configuration, since the waterproof cover and the outdoor side surface of the wall are sealed not only by the second sealing member but also by the caulking material, even if the smoothness of the outdoor side surface of the wall is low, it is ensured. Can be waterproofed. Moreover, the filling operation of the caulking material is also easy.

  According to the present invention, since the caulking material can be filled into the groove portion by injecting the caulking material from the inlet of the waterproof cover and discharging it from the outlet, the waterproofing treatment with the caulking material can be easily performed. .

It is a longitudinal section of the waterproof structure concerning a 1st embodiment of this invention. It is a front view of the waterproof cover used for the waterproof structure of the embodiment. It is the front view of the waterproof cover used for the waterproof structure of the embodiment, Comprising: The groove | channel formation part with which the caulking material was filled is shown in cross section. It is a longitudinal cross-sectional view of the waterproof structure which concerns on 2nd Embodiment of this invention. It is a front view of the waterproof cover used for the waterproof structure of the embodiment. It is the front view of the waterproof cover used for the waterproof structure of the embodiment, Comprising: The groove | channel formation part with which the caulking material was filled is shown in cross section.

The best mode for carrying out the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention. In this embodiment, the waterproof structure of the present invention is applied to a gas stopper embedded in a wall surface.
First, the wall-buried gas plug 1 will be described with reference to FIG. A wall W (joining target) that separates the indoor I and the outdoor O is composed of an inner wall Wi and an outer wall Wo, and the wall W is formed with a through hole Wa that penetrates the wall W indoors and outdoors. The casing 2 having the flange portion 21 is embedded in the through hole Wa, and the flange portion 21 is fixed to the surface on the indoor I side of the inner wall Wi. A decorative plate 3 is attached to the surface on the indoor I side of the inner wall Wi so as to cover the opening 22 of the casing 2.

  A gas plug 1 is built in the casing 2. The gas stopper 1 includes a plug part 11, a collar part 12, and a joint connection part 13. The collar portion 12 of the gas stopper 1 and the bottom portion 23 of the casing 2 are fixed by screws 14. From the bottom 23 of the casing 2, the joint connecting portion 13 protrudes and is exposed to the outdoor O from the outer wall Wo. A joint 4 is connected to the joint connecting portion 13 by screwing, and an elbow (not shown) which is a part of the primary side gas pipe is connected to the joint 4 by screwing. The gas plug 1 has a structure in which an internal valve is opened when a socket (not shown) connected to a gas pipe on the secondary side is connected to the plug portion 11, and an internal valve is closed when the socket is removed. The unillustrated elbow, joint 4 and gas plug 1 constitute a penetrating member that enters the through hole Wa.

  Next, a waterproof structure applied to the wall-buried gas plug 1 will be described with reference to FIG. In order to prevent rainwater from entering from the gap between the peripheral edge portion of the through hole Wa formed in the wall W and the through member (joint connection portion 13) entering the through hole Wa, it is necessary to perform waterproofing treatment. . The waterproof structure for that purpose includes a waterproof cover C, an annular first packing 5 (first seal member), an annular second packing 6 (second seal member), and a waterproof ring 7. The surface of the waterproof cover C on the outer wall Wo side will be described as the back surface, and the opposite surface will be described as the front surface.

  The first packing 5 is made of an elastic material such as rubber and can elastically expand and contract, and has an inner diameter smaller than the outer diameter of the joint connecting portion 13 in a natural state. The first packing 5 is attached to the joint connecting portion 13 such that the inner peripheral surface 51 is in contact with the outer peripheral surface of the joint connecting portion 13.

  The waterproof ring 7 is formed in a disk shape with a hard material, for example, brass, and a through hole 71 is formed in the center. The waterproof ring 7 is disposed on the outer wall Wo surface of the peripheral portion of the through hole Wa, and the joint connecting portion 13 is inserted into the through hole 71. One surface of the waterproof ring 7 is in contact with the outer wall Wo, and the other surface is in contact with the first packing 5.

  The second packing 6 is disposed on the radially outer side of the waterproof ring 7. The second packing 6 is made of an elastic material, and is preferably made of an independent foamed resin such as urethane. The outer diameter of the second packing 6 is formed to be the same as or slightly smaller than the diameter of the standing wall portion 84 of the waterproof cover C described later, and the inner diameter is formed to be the same as or slightly smaller than the outer diameter of the waterproof ring 7. ing. The thickness of the second packing 6 is larger than the thickness of the waterproof ring 7.

  Next, the waterproof cover C will be described with reference to FIGS. 1 to 3. The waterproof cover C is formed in a disk shape, and a through hole 80 is formed in the center. The waterproof cover C is made of a hard material such as stainless steel. The waterproof cover C includes a first flat part 81, a tapered part 82, a second flat part 83, a standing wall part 84, a third flat part 85, and a groove forming part in order from the through hole 80 toward the outer periphery of the waterproof cover C. 86 is formed. The flat portions 81, 83, 85 are orthogonal to the axis of the through hole 80.

  A taper portion 82 is formed to expand from the first flat portion 81 toward the second flat portion 83. The first flat portion 81 and the taper portion 82 and the waterproof ring 7 press and sandwich the first packing 5. The second flat portion 83 is in contact with the outer peripheral portion of the waterproof ring 7 and holds the waterproof ring 7 in cooperation with the outer wall Wo and presses and holds the second packing 6.

  The upright wall portion 84 is a cylindrical surface parallel to the axis of the through hole 80 and is in contact with the outer peripheral surface of the second packing 6. A screw hole 85a is formed in the third flat portion 85 and is in contact with the outer wall Wo. The waterproof cover C is attached to the outer wall Wo by screwing a screw 87 inserted into the screw hole 85a into the outer wall Wo.

The groove forming portion 86 is annular and has a substantially semicircular cross-sectional shape. The groove portion 86a formed inside the groove forming portion 86 is open on the outer wall Wo side, and its inner and outer peripheral edges are in contact with the outer wall Wo.
An injection port 86b communicating with the groove 86a is formed at one place (the highest position in the present embodiment) of the groove forming part 86. In the groove forming portion 86, a discharge port 86c communicating with the groove portion 86a is formed at a position 180 ° away from the injection port 86b in the circumferential direction (the lowest position in the present embodiment).

  Further, in the groove forming portion 86, a plurality of window portions 86d are formed, for example, every 30 ° between the inlet port 86b and the outlet port 86c. Each window portion 86d communicates with the groove portion 86a and has a smaller diameter than the inlet 86b and the outlet 86c.

With reference to FIGS. 1-3, the installation process of the waterproof structure of this Embodiment is demonstrated.
First, on the indoor I side, the joint connecting portion 13 of the gas plug 1 is protruded from the bottom portion 23 of the casing 2, and the collar portion 12 and the bottom portion 23 of the casing 2 are fixed with screws 14, and the gas plug 1 is built in the casing 2. Let The joint 4 is screwed to the joint connecting portion 13, and an elbow (not shown) is screwed to the joint 4. The assembly thus configured is inserted into the through hole Wa from the inner wall Wi side, the flange portion 21 is fixed to the inner wall Wi, and the decorative plate 3 is attached to the casing 2 so as to close the opening 22 of the casing 2.

  Next, on the outdoor O side, the waterproof ring 7 and the second packing 6 are moved from the elbow (not shown) protruding from the outer wall Wo to the joint 4 and moved to the peripheral edge of the through hole Wa of the outer wall Wo. The second packing 6 is fitted on the outer periphery. Similarly, the first packing 5 is passed through the joint 4 and moved until it comes into contact with the waterproof ring 7 and is arranged around the joint connection portion 13.

  Since the inner diameter of the first packing 5 is smaller than the outer diameter of the joint connecting portion 13 and the first packing 5 has elasticity, even if there are some irregularities on the outer peripheral surface of the joint connecting portion 13, The peripheral surface can be brought into contact with the outer peripheral surface of the joint connecting portion 13 without a gap.

  Next, the waterproof cover C is attached. The waterproof cover C is passed from the elbow (not shown) through the joint 4 to the joint connecting portion 13 and moved until the third flat portion 85 contacts the outer wall Wo. The waterproof cover C is fixed to the outer wall Wo by screwing screws 87 into the outer wall Wo from the screw holes 85a of the third flat portion 85 of the waterproof cover C. At this time, the first packing 5 is sandwiched and pressed by the waterproof ring 7 and the first flat portion 81 and the tapered portion 82 of the waterproof cover C, the inner diameter is reduced, and the outer diameter is increased. Thereby, the adhesiveness of the 1st packing 5 and the joint connection part 13 and the adhesiveness with the waterproof ring 7 are improved, and the waterproof function between the waterproof ring 7 and the outer periphery of the joint connection part 13 is improved.

  In a state where the waterproof cover C is fixed, the second packing 6 is sandwiched and pressed between the second flat portion 83 of the waterproof cover C and the outer wall Wo. By this pressing, the second packing 6 is brought into close contact with the second flat portion 83 and the outer wall Wo, the inner diameter thereof is reduced and brought into close contact with the waterproof ring 7, the outer diameter is enlarged, and the standing wall portion of the waterproof cover C is enlarged. 84. Therefore, the waterproof function between the outer wall Wo surface and the waterproof ring 7 is enhanced.

  After fixing the waterproof cover C to the outer wall Wo, a waterproof process is performed with the caulking material 9 (shown only in FIG. 3). This waterproofing process is performed by filling the groove 86a of the waterproof cover C with the caulking material 9. The caulking material 9 is filled by inserting a nozzle at the tip of a caulking gun (not shown) into the injection port 86b above the waterproof cover C and injecting the caulking material 9 into the groove 86a. The caulking material 9 injected into the groove portion 86a flows in two directions, clockwise and counterclockwise, in the annular groove portion 86a, passes through a position where each window portion 86d is located, and travels toward the discharge port 86c. Since the inlet 86b is at the uppermost position, the caulking material 9 can smoothly advance to the lower outlet 86c with the help of gravity.

  The injection work of the caulking material 9 is performed while checking the filling degree of the caulking material 9 from the window portion 86d. When the caulking material reaches a position where the window portion 86d is located, the caulking material 9 is filled from the inlet 86b to the position of the window portion 86d. The window portion 86d is formed in a size that does not allow the caulking material 9 to flow out.

  The injection of the caulking material 9 is continued until it is confirmed that the caulking material 9 flows into both the clockwise and counterclockwise grooves 86a and the caulking material is discharged from the discharge port 86c. As a result, the caulking material 9 in an amount necessary for filling the entire groove portion 86a is injected, and as shown in FIG. 3, the caulking material 9 filled in the groove portion 86a surrounds the through hole Wa on the outer wall Wo surface. Make a ring. The discharge port 86c also functions as a confirmation port for visually confirming that the caulking material 9 has been filled in the entire groove portion 86a. When the caulking material 9 is filled in the groove portion 86a, the air in the groove portion 86a escapes from the window portion 86d and the discharge port 86c, so that no air accumulation occurs in the groove portion 86a.

According to the present embodiment, the following operational effects can be obtained.
By filling the caulking material 9 in the annular groove 86a of the waterproof cover C, the caulking material 9 can be evenly distributed between the waterproof cover C and the outer wall Wo surface.
The caulking material 9 may be filled by injecting the caulking material 9 from the inlet 86b of the waterproof cover C fixed to the outer wall Wo surface and discharging it from the outlet 86c. Compared with removing caulking material after applying caulking material and fixing the waterproof cover, the work is easier and the working time is shortened.
Since the caulking material 9 in the groove 86a can be viewed from the inlet 86b, the window 86d and the discharge port 86c, the state of filling of the caulking material 9 can be confirmed after the waterproof cover C is fixed to the outer wall Wo surface.
Since the caulking material 9 is filled in the groove 86a on the back side of the waterproof cover C, the appearance of the waterproof structure is finished finer than when the caulking material 9 is applied to the wall surface and the waterproof cover is fixed as before. Can do.
In filling the caulking material 9, the caulking material 9 only needs to be discharged from the discharge port 86 c until the caulking material 9 is spread over the entire annular groove 86 a. Compared with the case where it is applied, the waste of the caulking material 9 can be reduced.
The caulking material 9 is discharged from the discharge port 86c only until the caulking material 9 reaches the entire annular groove 86a, but the removal may be performed by wiping or the like in the vicinity of the discharge port 86c. Compared with the case of removing the caulking material 9 that protrudes from the outer peripheral edge, the removing operation of the caulking material 9 is easier.

  Next, another embodiment of the present invention will be described. In the following embodiments, only the configuration different from the above-described embodiment will be described, and the same components are denoted by the same reference numerals and the description thereof will be omitted.

  4 to 6 show a second embodiment of the present invention. In this embodiment, an annular groove forming portion 88 is further provided on the first flat portion 81 of the waterproof cover C in the first embodiment. Similar to the groove forming portion 86, the groove forming portion 88 includes a groove portion 88a, an injection port 88b, a discharge port 88c, and a window portion 88d. The outer peripheral edge and inner peripheral edge of the groove portion 88 a are in contact with the first packing 5 (joining target), and the open side of the groove portion 88 a is closed by the first packing 5. In the groove forming portion 88, the window portions 88d are formed one by one on the left and right sides at a distance of 90 ° from the inlet 88b and the outlet 88c.

  In the installation process of the waterproof structure in the present embodiment, after fixing the waterproof cover C to the outer wall Wo, the caulking material 9 is also filled into the groove 88a. This filling operation is the same as the filling operation into the groove 86a.

  According to the present embodiment, since the waterproofing treatment by the caulking material 9 is also performed between the first packing 5 and the waterproof cover C, water can enter from between the waterproof cover C and the first packing 5. The function to prevent can be enhanced.

The present invention is not limited to the above-described embodiment, and various modifications can be employed without departing from the spirit of the invention.
For example, in the above embodiment, the positions of the inlet and the outlet may be turned upside down.
The number of injection ports and the position of the injection port are not limited to the above embodiment. There may be multiple inlets.
The number of discharge ports and the position of the discharge ports are not limited to the above embodiment. There may be a plurality of outlets.
In the embodiment, the number of window portions and the arrangement interval of the window portions are not limited by the embodiment.
In the embodiment, the groove is formed in an annular shape, but is not limited to an annular shape, and may be a closed curve shape (annular).
In the embodiment, the waterproof cover C is made of stainless steel, but may be made of resin. For example, it may be formed of a transparent resin so that the filled caulking material can be seen. In that case, the window portion may not be provided.

  The waterproof cover and waterproof structure according to the present invention can be applied to prevent water from entering the through hole between the peripheral portion of the through hole formed in the wall and the through member that enters the through hole.

W wall (joining target)
Wa Through hole C Waterproof cover 13 Joint connection (penetrating member)
4 Fitting (penetrating member)
5 First packing (joining target, first seal member)
6 Second packing (second seal member)
7 Waterproof ring 86a, 88a Groove 86b, 88b Inlet 86c, 88c Outlet 86d, 88d Window 9 Coking material

Claims (6)

An annular groove filled with caulking material;
An inlet that communicates with the groove and injects a caulking material;
A waterproof cover, comprising: a discharge port that communicates with the groove and discharges the caulking material.   The waterproof cover according to claim 1, wherein the discharge port is separated from the injection port by 180 ° in the circumferential direction.   The waterproof cover according to claim 1 or 2, wherein a window portion communicating with the groove portion is formed between the inlet and the outlet. A waterproof cover provided with an annular groove, an inlet connected to the groove, and a discharge outlet connected to the groove at a position away from the inlet in the circumferential direction is joined to an object to be joined, and the open side of the groove is So that it is covered with the joining object,
In a state where the waterproof cover is bonded to the bonding target, a caulking material is injected from the injection port, and the caulking material proceeds in the groove and toward the discharge port,
A method for filling a waterproof cover with a caulking material, wherein the injection of the caulking material is terminated after confirming that the caulking material is discharged from the discharge port. The outlet is at a position 180 ° away from the inlet in the circumferential direction;
5. The method of filling a waterproof cover with a caulking material according to claim 4, wherein the caulking material injected from the injection port and directed toward the discharge port is divided into two in the groove. A waterproof structure between a peripheral portion of a through hole formed in the wall and a penetrating member entering the through hole,
The waterproof cover according to any one of claims 1 to 3, wherein the waterproof cover has an annular shape and is fixed to the surface on the outdoor side of the wall through the penetrating member. The open side is blocked by the outdoor side of the wall,
Furthermore, an annular first packing that seals between the waterproof cover and the outer periphery of the penetrating member, and an annular second packing that seals between the waterproof cover and the surface on the outdoor side of the wall, The second packing is disposed radially inward from the groove,
The waterproof structure, wherein the groove portion is filled with a caulking material injected from the inlet toward the outlet.

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