JPH0828775A - Leak part repairing device - Google Patents

Abstract

PURPOSE:To repair a leak part and embody the low cost without lowering the fluid pressure or executing fluid disconnection. CONSTITUTION:Two-separated covers 1, 2 capable of covering a leak part of a pipe P while forming a cylindrical space for filling sealant are provided around the leak part of the pipe P. Flange type connection parts 5 are provided on the covers 1, 2 respectively for connection of both to each other. A pair of seal members 3, 4 provided between an edge part of the cover 1, 2 having the connection part 5 and the pipe P for freely sealing the space are provided. At least one of the covers 1, 2 is provided with a gas relief hole 6 in the cylindrical space which also acts as a sealant filling port to the space, and a pushing mechanism 7 to push a rubber member 8 to the leak part by operation of an operation part 7a which can be freely operated outside the covers 1, 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for repairing a leak portion of a fluid such as city gas in a portion where a leak portion of the fluid is generated. Leakage repair equipment

[0002]

2. Description of the Related Art Conventionally, since a particularly effective device for repairing a leaked portion has not been developed, when a leaked portion of the fluid is generated, the pressure of the fluid is reduced or the The leakage was repaired by shutting off the flow.

[0003]

However, when the pressure of the fluid is lowered or the flow of the fluid is interrupted, it takes a considerable amount of time and time before the repair work can be performed. There is a problem (hereinafter referred to as a conventional problem) that labor is required, construction efficiency is low, and a user of the fluid is annoyed as the time elapses. Therefore, in order to solve the above-mentioned conventional problems, it has been desired to develop a means capable of performing the repair work without lowering the pressure of the fluid or interrupting the flow of the fluid. As a means for responding to the above-mentioned demand, the person or the like has previously formed a two-divided cover 1 capable of covering the surroundings while forming a cylindrical space for filling a sealing agent around the leaking portion of the conduit P, as shown in FIG. , 2 are provided, and a flange-like connecting portion 5 for connecting them is attached to each of the two-divided covers 1 and 2, and the edge portion of the two-divided covers 1 and 2 with the flange-shaped connecting portion 5 and A pair of sealing members 3 and 4 which are interposed between the pipe P and can seal the cylindrical space are provided, and the two-divided covers 1 and 2 also serve as a filling port of the sealant into the cylindrical space. A device in which a gas escape hole 6 in the cylindrical space is formed (hereinafter Examined the practical application of) that comparator. In addition, since the leaking fluid from the leaking portion is temporarily confined in the cylindrical space for filling the sealant before the sealant is filled, the pressure of the fluid is reduced or the flow of the fluid flows. It is possible to carry out the repair work without shutting off the power. However, the above-mentioned comparison device also has the following problems. That is, when the comparison device is used, the repair work is performed in a state where the pressure of the fluid is not reduced or the flow of the fluid is not interrupted. It comes to cover a cylindrical space. Therefore, in the above-mentioned comparison device, the edge portions of the two-divided covers 1 and 2 with the flange-like connecting portion 5 and the conduit P
And the sealability between the two (that is, the sealability between the both due to the seal members 3 and 4) must be specified to withstand the pressure of the fluid, and in order to manufacture a device that satisfies this specification, There is a problem that the manufacturing cost becomes high (hereinafter referred to as a problem of the comparison device). The present invention
The present invention has been made in view of such an actual situation, and an object thereof is to provide means capable of solving the above-mentioned problems of the comparison device while solving the above-mentioned conventional problems.

[0004]

A characteristic structure of a leaky portion repairing apparatus according to the present invention (hereinafter referred to as an apparatus of the present invention) is such that a cylindrical space for filling a sealant is formed around a leaking portion of a conduit. A two-divided cover that can cover the periphery is provided, and each of the two-divided covers is provided with a flange-shaped connecting portion for connecting the two-divided cover, and an edge portion of the two-divided cover with the flange-shaped connecting portion. Interposed between the conduit and
A pair of sealing members capable of sealing the cylindrical space are provided, and at least one of the two-divided covers has a gas escape hole in the cylindrical space which also serves as a filling port of the sealing agent into the cylindrical space, A rubber member is pressed against the leaking portion by an operation of an operation portion that can be operated outside the split cover, and a pressing mechanism that can be brought into contact with the leakage portion is additionally provided.

[0005]

According to the device of the present invention having the above-mentioned characteristic structure, as in the case of the comparison device, the cylindrical space for filling the sealant is formed around the leakage portion of the conduit. Since a pressing mechanism that can press and contact the leaking portion of the rubber member by the external operation is provided,
By using the pressing mechanism, the rubber member can be pressed against the leak portion, and the fluid in the conduit can be prevented from leaking through the leak portion. Therefore, even if the pressure of the fluid in the conduit is not reduced or the flow of the fluid is not interrupted, the leaked portion can be repaired and the conventional problem can be solved. Moreover, as described above, the leakage fluid is prevented from diffusing into the cylindrical space based on the pressing of the rubber member against the leakage portion, so that the sealing property of the cylindrical space (more specifically, the flange It is not necessary to have a high sealability between the edge of the two-part cover with the linear connection portion and the conduit by the sealing member) as in the comparison device. Therefore, it is possible to avoid the high manufacturing cost of the comparison device in manufacturing the device of the present invention, and the problem of the comparison device is solved.

[0006]

Therefore, when the device of the present invention is used, both the problems of the conventional device and the problem of the comparison device described above can be solved, and the object of the present invention can be achieved. .

When a mark indicating the center position of the pressing mechanism is attached to the two-divided cover, the rubber member of the pressing mechanism is checked while confirming the center position of the pressing mechanism with the mark. The leaked portion can be reliably pressed and brought into contact with the leaked portion, and the workability thereof can be greatly improved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the portions denoted by the same reference numerals as those of the comparative example indicate the same or corresponding portions.

1 to 3 show an embodiment of the device of the present invention. P in the figure is a conduit (specifically, a gas pipe) which is a target of repair of the leak portion by the device of the present invention, and a cylindrical space for filling the sealant is formed around the leak portion of the conduit P. While covering the surroundings, the two split covers 1 and 2 can be freely covered.
(More specifically, the device of the present invention is provided with the two-divided covers 1 and 2 formed by dividing the cylindrical body b with the annular end face portion a into two. Each of the two-divided covers 1 and 2 is provided with a flange-like connecting portion 5 for connecting the two-divided covers 1 and 2 to each other. The edge portion (the edge portion along the axial direction) is provided so as to project outward. Further, the device of the present invention is provided with a pair of seal members 3 which are interposed between the entire peripheral edge portions of the two-divided covers 1 and 2 with the flange-shaped connecting portion 5 and the conduit P to seal the cylindrical space. , 4 are provided. Then, in each of the two-divided covers 1 and 2, a gas escape hole 6 in the cylindrical space that also serves as a filling port of the sealing agent into the cylindrical space, and an operation outside the two-divided covers 1 and 2 is performed. The rubber member 8 is pressed against the leaking portion by a free operation of the operating portion 7a, and a pressing mechanism 7 that is freely brought into contact with the leaking portion is attached. More specifically, as shown in FIGS. 1 and 2, three gas escape holes 6 are formed in each of the two-divided covers 1 and 2, and these gas escape holes 6 are closed when not in use. It is designed so that it can be opened if necessary.
Further, the operating portion 7a of the pressing mechanism 7 is a T-shaped male screw member that can be threadedly inserted into a female screw portion provided at an appropriate position of the cylindrical body b, and the rubber member 8 is provided at the tip thereof. It is attached. The material of the rubber member 8 is the conduit P
It is selected to withstand the contact of the gas flowing through it. Further, a mark 9 indicating the central vertical and horizontal positions of the pressing mechanism 7 is attached to the two-divided covers 1 and 2 as shown in FIGS. 1 and 2.

When the leaky portion of the conduit P is repaired by using the device of the present invention having such a structure, first, one of the two split covers 1 and 2 with the flange-like connecting portion 5 is marked 9.
Using the pipe P while accurately aligning with the leak portion.
And then the other of the two-divided covers 1 and 2 with the flange-shaped connecting portion 5 is applied to the conduit P (in this state, the seal members 3 and 4 are previously formed into the flange-like shape). It is interposed between the two-divided covers 1 and 2 with the connecting portion 5 and the conduit P), and both of the two-divided covers 1 and 2 are connected using the flange-shaped connecting portion 5. Then, after the rubber member 8 is pressed against the leakage portion using the pressing mechanism 7 to temporarily stop the leakage (see FIG. 4A),
A sealant is filled in the cylindrical space using the gas escape hole 6. After these operations are completed, the externally exposed portion of the operating portion 7a made of the T-shaped male screw member is cut and removed (see FIG. 4B). In addition, in the process of mounting the two-divided covers 1 and 2, it is possible to dissipate the leaked gas to the outside through the gas escape hole 6 to take measures against gas leakage in the process of mounting. Moreover, since the leakage is temporarily stopped by pressing the rubber member 8 against the leakage portion, the selection range of the sealing agent filled in the cylindrical space can be expanded.

Next, another embodiment will be described. In the above-described embodiment, three gas escape holes 6 are formed in each of the two-divided covers 1 and 2, but it goes without saying that the number of formed holes is not limited to the above-mentioned three. Further, the gas escape hole 6 may be formed in only one of the two-divided covers 1 and 2.

In the above-mentioned embodiment, the conduit P is a gas pipe, but the conduit P is a pipe through which various fluids other than gas (for example, steam, various gases, various liquids, etc.) can flow. It may be. However, it goes without saying that it is necessary to select the material of the rubber member 8 according to the type of the various fluids.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the device of the present invention.

FIG. 2 is a perspective view showing the assembled state.

FIG. 3 is a vertical sectional view thereof.

FIG. 4 is an explanatory view showing a part of the work procedure.

FIG. 5 is a perspective view showing a comparison device which the inventors of the present invention previously examined for practical use.

[Explanation of symbols]

 1, 2 Divided cover 3, 4 Seal member 5 Flange connection part 7 Pressing mechanism 7a Operation part 8 Rubber member 9 Mark P conduit

Claims (2)

[Claims] 1. A two-divided cover (1), (2) is provided around the leaked portion of the conduit (P) to form a cylindrical space for filling a sealing agent, and the surrounding can be covered. Each of (1) and (2) is provided with a flange-shaped connecting portion (5) for connecting the two-divided covers (1) and (2), and the two-divided portion is provided with the flange-shaped connecting portion (5). Cover (1),
A pair of seal members (3) interposed between the edge of (2) and the conduit (P) to seal the cylindrical space,
(4) is provided, and at least one of the two-divided covers (1) and (2) is provided with a gas escape hole (6) in the cylindrical space which also serves as a filling port of the sealing agent into the cylindrical space, A rubber member (8) is attached to a pressing mechanism (7) which can be pressed against the leaked portion by operating an operation portion (7a) which can be operated outside the two-divided covers (1) and (2). There is a leak repair device. 2. The leak repairing device according to claim 1, wherein the two-divided covers (1), (2) are provided with a mark (9) indicating the center position of the pressing mechanism (7).