JPH0214717Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is useful for repairing gas leaks caused by cracks that occur in low-pressure gas piping such as city gas, or gas leaks due to lack of airtightness in connection joints. The present invention relates to a gas leak repair work bag for repairing piping without stopping the supply and also while stopping the gas leak.

[Conventional technology]

Conventional work bags of this type that can repair or renovate pipes without stopping the gas supply include the no-blow jig for repairing gas pipe water collectors described in Japanese Utility Model Application No. 58-69193; Kaisho 59-105687
A gas working tool described in the above publication has been proposed.

In each case, an insertion hole for fitting into the gas pipe is drilled on the end face of the cylindrical body, which is used to repair the water intake device or connect the pipe joint to the end of the gas pipe. By fitting this into the gas pipe, the cylindrical body is sealed.

The work is performed by inserting the hand into the cylinder through the hand insertion opening on the side or top of the cylinder.

[The problem that the idea attempts to solve]

These work jigs have an insertion hole on the end face of the cylindrical body to fit into the gas pipe, so they can be inserted into the gas pipe water intake device that branches off and protrudes from the end of the pipe or the middle of the pipe. However, in case of gas leakage or cracks from a connecting joint in the middle of a long pipe, it is not possible to fit the cylindrical body into the pipe through the insertion hole.

Therefore, it has the disadvantage that it cannot be used against gas leaks in the middle of long piping.

Also, when you run out of tools or parts during work, in order to replenish them, you may have to move them in and out of the cylinder, or you may have to cut corners and hold these tools or parts and put your hands inside the cylinder. When inserting the cylinder, there is a risk that the gas filled inside the cylinder may leak out.

[Purpose of invention]

This invention is intended to solve the above-mentioned problems of conventional work jigs for gas construction work, and focuses on airtight fasteners that become airtight when closed. The first object is to provide a work bag for gas leak repair that can be used for repair work in the middle of piping.

A second object of the present invention is to provide a work bag for repairing gas leaks that can be used to replenish tools and parts without causing gas leaks when the tools or parts become insufficient during the work.

[Means to solve the problem]

The present invention relates to a means for a gas leak repair work bag to achieve the above-mentioned object, which is made of an air-impermeable transparent material, has narrow openings at both ends, and is tightened with airtight fasteners. A hand insertion opening is formed in the cylindrical main body, and an opening that can be opened and closed with an airtight fastener is formed on one side of the main body, and a subchamber having an opening that can be opened with an airtight fastener is provided on the outside of this opening. By doing so, you can achieve that purpose.

[Example of idea]

Next, an example of implementation of the present invention will be described below with reference to the drawings.

1 is a cylinder made of a transparent, airtight, and flexible material such as a vinyl sheet, and one side of the cylinder is cut open so that it can be expanded.

An airtight fastener 2 used for space suits, decompression suits, and other structures that require airtightness is attached to this cut-out end surface, and when the airtight fastener 2 is closed, the cylindrical body 1 is shaped into a cylindrical shape. It can be done.

This cylindrical body 1 is provided with two elastic tubes 3 which allow a hand to be inserted into the cylindrical body 1, and which are elastic enough to come into close contact with the arm when the hand is inserted.

Further, on one surface of the cylinder 1, a sealed sub-chamber 4 is formed by gluing the periphery of a sheet made of the same material as the cylinder 1, and the space between the sub-chamber 4 and the cylinder 1 and the sub-chamber 4 is Openings are also provided on the outer surface, to which airtight fasteners 5 and 6 are attached.

In addition, instead of the cylinder 3, as shown in FIG.
It may also be an airtight glove 9 that is tucked inside.

This work bag for gas leak repair can be unfolded by opening the airtight fastener 2, so it is opened and placed over the piping 7 where the gas leak is occurring, as shown in FIG.

Then, the airtight fastener 2 is closed, and both ends of the cylindrical body 1 are tied with tape 8 or the like to bring the inside of the cylindrical body 1 into a sealed state.

At this time, it is desirable to put necessary tools and parts into the cylinder 1 in advance.

Then, insert your hand into the cylinder 1 from the cylinder 3, or put your hand into the glove 9, and connect the pipe fittings inside the cylinder 1.
Repair gas leaks such as cracks.

During this repair work, if there is a shortage of working tools or parts, remove the hand from the tube 3 or have someone else open the airtight fastener 6 and put it into the subchamber 4 to ensure an airtight seal. Close the sexual fastener 6.

Next, the airtight fastener 5 is opened by hand inside the cylindrical body 1, the tools and parts in the auxiliary chamber 4 are taken into the cylindrical body 1, and the airtight fastener 5 is closed.

In this way, tools and parts can be supplied during work by opening and closing the airtight fasteners 6 and 5 twice to allow them to pass through the auxiliary chamber 4, without causing the gas inside the cylinder 1 to leak to the outside. In addition, it eliminates the difficulty of inserting and removing the hand from the tube 3 while grasping a tool or part due to the fact that the portion passing through the tube 3 is larger than the arm and the tube 3 protrudes for a long time, and the risk of gas leakage. Can be done.

[Effect of idea]

As mentioned above, the present invention can also be used to repair gas leaks in the middle of long piping by opening the airtight fastener, attaching the cylinder, keeping the cylinder in a sealed state, and inserting your hand inside the cylinder to repair the gas leak. be able to.

Therefore, it becomes possible to repair gas leaks in the middle of piping without stopping the gas supply, which was conventionally considered impossible.

In addition, tools and parts are supplied during the work by opening and closing the airtight fasteners on the outer surface of the subchamber and the airtight fasteners between the subchamber and the cylinder through the subchamber, allowing gas to leak out of the cylinder. It can be done without any trouble.

Further, there is an effect that the auxiliary work is no longer difficult to perform, such as when tools or parts get caught on the tube through which the hand moves in and out of the cylinder.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a plan view thereof, and Fig. 4 is a second embodiment of the invention.
5 is a sectional view corresponding to FIG. 4 of another embodiment, and FIG. 6 is a perspective view of the device in use. 1... Cylindrical body, 2, 5, 6... Airtight fastener,
3...tube, 4...auxiliary chamber, 7...piping, 8...tape, 9...gloves.

Claims (1)

[Scope of utility model registration request] The body is made of an air-impermeable transparent material, and the openings at both ends are narrowed, and the body becomes cylindrical by tightening air-tight fasteners.A hand insertion opening is formed in the body, and an air-tight hole is formed on one side of the body. 1. A work bag for gas leak repair, characterized in that an opening is formed that can be opened and closed with an airtight fastener, and a sub-chamber is provided outside the opening that can be opened with an airtight fastener.