JPH067158Y2 - Waterproof structure of piping terminal - Google Patents

Description

[Detailed Description of the Invention] [Field of Use and Outline of the Invention] The present invention relates to a fixing structure for a gas cock mounting pipe terminal, etc., and more particularly to a waterproof structure for a pipe in which the pipe terminal portion penetrates a wall of a house. Then, the flexible pipe made of a flexible material such as rubber or plastic is used to surely prevent the rainwater from entering by covering the protruding portion from the wall surface of the pipe over a certain range.

[Prior Art and its Problems] As a method for fixing a pipe terminal, there is one already disclosed in Japanese Utility Model Publication No. 58-35902. This relates to a structure in which a box cock is built in a wall (A) and a gas pipe is connected to the box cock, and has a structure as shown in FIG.

That is, the gas cock (11) and the case (1) that houses it
In the box cock consisting of (1) and (2), the case (1) has a cylindrical shape, and the box cock is housed and fixed in a through hole penetrating the wall (A).

Therefore, in this conventional one, a fitting (C) having a flange (F) is arranged on the outer surface side of the wall (A), and the fitting (C) and a gas cock (case) housed in the case (A) ( 11) and connect this joint (C) to the cylinder (S) housed in the through hole of the wall (A).
Screw the flange (F) of the
It is closely attached to the outer surface of (A).

In this conventional one, since a flange is provided at the indoor side end of the tubular body (S), the flange (F) of the joint (C) is screwed to the tubular body (S), so that the wall ( The joint (C) is fixed in a manner that A) is sandwiched. Therefore, the pipe terminal and box cock connected and fixed to this joint (C) are
It will be buried in the wall (A) through. Further, in this case, since the outer surface side of the through hole penetrating the wall (A) is closed by the flange (F) of the joint (C), intrusion of rainwater can be prevented by this joint (C). .

However, in this conventional one, the joint (C) must be separately configured according to the type of the piping member, and moreover,
There is a problem that the joint (C) must be separately configured according to the connection type with the flow path opening / closing device such as the gas cock (11) housed in the case (1).

This is because the member for shutting off rainwater and the member for connecting pipes are integrated.

[Technical problem] The present invention provides a "channel (1) with a built-in flow path opening / closing device,
This case (1) is buried in a penetrating state in the wall (A) by abutting the indoor end of the case (1) on the peripheral edge of the through hole of the wall (A), and a pipe terminal disposed outside the wall (A). In order to make it unnecessary to change the waterproof structure even if the type of piping or the connection type between the piping terminal and the flow path opening / closing device changes in the "pipe connection device of the type for connecting the flow path opening / closing device". The technical problem is to enable the inside and outside of the wall (A) to be blocked by a member separate from a member for connecting pipes.

[Means] The technical means of the present invention taken to solve the above technical problem is that "a joint (C) for connecting a pipe is provided separately and an opening (31) for inserting a pipe is provided at the center. Touching plate (3) to wall (A)
It is attached to the outer surface of this, and this backing plate (3) and the case (1) are screwed, and the flexible tube (4) having the flange part (41) at one end is attached to the pipe (5) over a certain range. The flange part
(41) is fixedly attached to the backing plate (3). '

[Operation] The above technical means operates as follows.

The case (1) is housed in the through hole that penetrates the wall (A), and the backing plate is
When the (3) and the case (1) are screwed together, the indoor end of the case (1) abuts on the peripheral edge of the through hole penetrating the wall (A), and the backing plate (3) of the through hole is formed. Abutting the outer peripheral edge,
The case (1) is fixed in the through hole of the wall (A) while sandwiching the (A).

Prior to embedding and fixing the case (1), if the terminal of the pipe (5) and the flow path opening / closing device housed in the case (1) are connected, the flow path opening / closing from the pipe (5) will be performed by the above work. The circuit up to the device is connected and the case (1) is embedded and fixed in the wall (A) together with the device.

Then, the flexible tube (4) fitted on the pipe (5) is moved to the contact plate (3) side, and the flange portion (41) is fixed to the contact plate (3). The outer peripheral gap of the pipe (5) generated in the above is closed, and moreover, a certain range of the pipe (5) from the flange portion (41) is covered with the flexible tube (4).

[Effects] The present invention having the above-described configuration has the following unique effects.

The outer edge of the backing plate (3) abuts the outer surface of the wall (A).
The outer peripheral gap of the pipe (5) that passes through the opening (31) of (3) is a flexible pipe.
Since it is blocked by (4), piping on the outer surface of wall (A)
The insertion part of (5) is waterproof. Further, even if the joint type between the pipe (5) and the flow path opening / closing device is changed, it is not necessary to change the waterproof structure, so that it has versatility and can be conveniently used.

[Embodiment] An embodiment of the present invention will be described below with reference to FIG.

In the illustrated embodiment, the present invention is applied to a gas cock mounting structure, and the flow path opening / closing device is a gas cock (11).
A bellows pipe is adopted as the pipe (5). The bellows tube and the gas cock (11) are connected by a joint (C), and the joint (C) is mainly composed of a joint (51) and a nut.
It consists of (52) and. This joint main body (51) is provided with a cylindrical portion (54) provided with a taper screw portion (53) on the outer periphery and a connection screw portion (55) for connecting the gas cock (11), and the other The nut (52) is formed with a taper screw part that is screwed into the taper screw part (53).

The inner diameter of the tubular portion (54) is adapted to the outer diameter of the bellows pipe as the pipe (5), and when the bellows tube is inserted into the tubular portion (54) and the nut (52) is tightened, the joint main body The (51) and the pipe (5) can be connected to each other in an airtight state in the outer periphery. Nut (52) and barrel
When the nut (52) is tightened by the taper screw fitting action with (54), the diameter of the tubular portion (54) is reduced, and the inner peripheral surface of the tubular rib (55) is independent of each other in the pipe (5). , (55) is pressed against the entire outer circumference, and the airtightness of this fitting portion is secured.

Next, the flexible tube (4) is made of a flexible material such as vinyl chloride resin or polyethylene resin, and has a flange portion (41) followed by a tubular portion (42) and a bellows-like portion (43), and further. , A small-diameter cylindrical portion (44) formed at this tip. And the small diameter cylinder
The inner diameter of (44) is set to a diameter that tightly fits over the annular ribs (55), (55) of the pipe (5). Therefore, install a flexible pipe in the pipe (5).
When (4) is externally fitted, the small-diameter tubular portion (44) is elastically extended and tightly fits with the annular ribs (55), (55), and the pipe ( The insertion part of 5) is sealed by the fitting part. Therefore, it is possible to reliably prevent the rainwater from entering through the insertion portion. In the case of the illustrated embodiment, the pipe (5) is bent downward, but even if this pipe (5) is bent upward, the small diameter tubular portion (44) prevents rainwater from entering. it can.

Further, in this embodiment, the flexible tube (4) is fixed to the vicinity of the peripheral edge of the opening (31) by fixing screws (6) and (6) at the same time as the attachment of the contact plate (3). . Therefore, the flange
Through holes for the fixing screws (6) and (6) are drilled in (41), and the fixing screws for the backing plate (3) are aligned with these through holes.
(6), (6) Holes for insertion are provided, and on the other hand, screw holes (13), (13) are formed in the bottom wall (12) of the case (1) in accordance with the holes. . Therefore, the flange portion (41) and the backing plate (3)
When the fixing screws (6) and (6) are penetrated through the through holes and the hole portions and the fixing screws (6) and (6) are screwed into the screw holes (13) and (13), the case ( 1) is fixed in the through hole of the wall (A), and the peripheral edge of the contact plate (3) is pressed against the back surface of the wall (A) through the packing (P).

Although the bellows pipe is adopted as the pipe (5) in the above embodiment, the pipe (5) may be a normal steel pipe.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of the present invention, and FIG. 2 is an explanatory view of a conventional example. In the drawing, (1) ... Case (3) ... Abutting plate, (31) ... Opening (4 ) …… Flexible tube, (41) …… Flange section (44) …… Small diameter tube section (5) …… Piping (A) …… Wall (C) …… Fitting

Claims (2)

[Scope of utility model registration request] 1. A flow path opening / closing device is built in the case (1),
This case (1) is buried in a penetrating state in the wall (A) by abutting the indoor end of the case (1) on the peripheral edge of the through hole of the wall (A), and a pipe terminal disposed outside the wall (A). In the pipe connecting device of the type for connecting the flow path opening / closing device, a pad plate that is configured separately from the pipe connecting joint (C) and has a pipe insertion opening (31) at the center.
Attaching (3) to the outer surface of the wall (A), this backing plate (3) and case (1)
And the screw, and a flexible tube (4) having a flange portion (41) at one end is fitted onto the pipe (5) over a certain range, and the flange portion (41) is tightly attached to the contact plate (3). A waterproof structure for the piping end that is worn. 2. A waterproof structure for a pipe terminal according to claim 1, wherein the flexible tube (4) has a small-diameter cylindrical portion (44) which is tightly fitted to the pipe (5) at the distal end thereof.