Detachable gas pipeline valve leakage plugging device

Abstract

The utility model discloses a detachable gas pipeline valve leakage plugging device, which belongs to the technical field of gas pipeline maintenance auxiliary devices, and comprises an internal thread copper ball valve, a sealing pipe sleeve, a hollow pipe, a solid rod and an expansion plug, the hollow pipe penetrates through the sealing pipe sleeve and the internal thread copper ball valve, and gaps are reserved between the internal thread copper ball valve and the hollow pipe and between the sealing pipe sleeve and the hollow pipe. When the internal thread copper ball valve is opened, the solid rod is rotated to enable the expansion plug at the end of the solid rod to extend into the gas pipeline, the expansion plug abuts against the inner wall of the pipeline under the high-pressure effect of gas for sealing, and in the operation process, a small part of gas enters the gap and is exhausted from the exhaust valve. At the moment, the flange valve, the internal thread copper ball valve and the sealing pipe sleeve are taken down together, a sealing gasket or the whole valve is replaced, gas stopping operation is not needed in the process, and gas supply of other pipelines is not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas pipeline maintenance auxiliary devices, and in particular relates to a detachable gas pipeline valve leakage blocking device. Background Art

[0002] If the flange valve leaks, the gasket or the entire valve needs to be replaced. At this time, the gas supply needs to be shut down, which will affect the gas supply of other pipelines. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned problems and to provide a detachable gas pipeline valve leakage blocking device.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a detachable gas pipeline valve leakage plugging device, which includes an internally threaded copper ball valve, a sealing pipe sleeve, a hollow tube, a solid rod and an expansion plug, the sealing pipe sleeve is screwed on the internally threaded copper ball valve, the hollow tube passes through the sealing pipe sleeve and the internally threaded copper ball valve, and a gap is left between the internally threaded copper ball valve and the sealing pipe sleeve and the hollow tube, a sealing sleeve is provided in the sealing pipe sleeve, the sealing sleeve is provided on the hollow tube and blocks the gap, an exhaust valve is provided on the sealing pipe sleeve, the exhaust valve is located between the sealing sleeve and the internally threaded copper ball valve, the solid rod is screwed in the hollow tube, and both ends of the solid rod extend to the outside of the hollow tube, and the expansion plug is connected to the lower end of the solid rod.

[0005] As a further description of the above technical solution:

[0006] The expansion plug is screwed to the solid rod.

[0007] As a further description of the above technical solution:

[0008] The connection between the internal thread copper ball valve and the sealing pipe sleeve is filled with raw tape.

[0009] As a further description of the above technical solution:

[0010] A connector is provided at the upper end of the solid rod, and a T-shaped wrench is connected to the connector.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0012] In the utility model, the internal thread copper ball valve is opened and the solid rod is rotated at the same time so that the expansion plug at the end thereof extends into the gas pipeline. The expansion plug is pressed against the inner wall of the pipeline under the high pressure of the gas to seal it. During the operation, a small amount of gas will enter the gap and be discharged from the exhaust valve. At this time, the flange valve, the internal thread copper ball valve and the sealing pipe sleeve are removed together, and the sealing gasket or the entire valve is replaced. During the process, there is no need to stop the gas operation and the gas supply of other pipelines is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of the overall structure of a detachable gas pipeline valve leakage plugging device.

[0014] Figure 2 The figure is a cross-sectional view of a detachable gas pipeline valve leakage plugging device.

[0015] Figure 3 This is an exploded view of a detachable gas pipeline valve leakage sealing device.

[0016] Legend:

[0017] 1. Internally threaded copper ball valve; 2. Sealing sleeve; 3. Hollow tube; 4. Solid rod; 5. Expansion plug; 6. Gap; 7. Sealing sleeve; 8. Exhaust valve; 9. Connector; 10. T-type wrench. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3The utility model provides a technical solution: a detachable gas pipeline valve leakage plugging device, comprising an internal thread copper ball valve 1, a sealing sleeve 2, a hollow tube 3, a solid rod 4 and an expansion plug 5, the sealing sleeve 2 is screwed on the internal thread copper ball valve 1, the hollow tube 3 passes through the sealing sleeve 2 and the internal thread copper ball valve 1, and a gap 6 is left between the internal thread copper ball valve 1 and the sealing sleeve 2 and the hollow tube 3, a sealing sleeve 7 is provided in the sealing sleeve 2, the sealing sleeve 7 is sleeved on the hollow tube 3 and blocks the gap 6, an exhaust valve 8 is provided on the sealing sleeve 2, the exhaust valve 8 is located between the sealing sleeve 7 and the internal thread copper ball valve 1, the solid rod 4 is screwed in the hollow tube 3, and both ends of the solid rod 4 extend to the outside of the hollow tube 3, and the expansion plug 5 is connected to the lower end of the solid rod 4;

[0020] The expansion plug 5 is screwed to the solid rod 4, which makes it easy to replace different expansion plugs 5 to adapt to different pipelines;

[0021] The connection between the internal thread copper ball valve 1 and the sealing sleeve 2 is filled with raw tape to ensure the sealing of the overall structure;

[0022] A connector 9 is provided at the upper end of the solid rod 4 , and a T-shaped wrench 10 is connected to the connector 9 to assist the solid rod 4 in rotating.

[0023] Working principle: Open the internal thread copper ball valve 1 and rotate the solid rod 4 at the same time to extend the expansion plug 5 at its end into the gas pipeline. The expansion plug 5 presses against the inner wall of the pipeline under the high pressure of the gas to seal it. That is, the expansion plug 5 expands and squeezes on the wall of the gas pipe under the mechanical pressure of the hollow tube 3 and the solid rod 4. The gas pressure in the pipeline is offset by the expansion force and friction resistance after expansion, thereby preventing gas leakage in the pipe. During the operation, a small amount of gas will enter the gap 6 and be discharged from the exhaust valve 8. At this time, remove the flange valve together with the internal thread copper ball valve 1 and the sealing pipe sleeve 2 to replace the sealing gasket or the entire valve. There is no need to stop the gas during the process, and it will not affect the gas supply of other pipelines.

[0024] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A detachable gas pipeline valve leakage blocking device, characterized by: The invention comprises an internal thread copper ball valve (1), a sealing sleeve (2), a hollow tube (3), a solid rod (4) and an expansion plug (5), wherein the sealing sleeve (2) is screwed onto the internal thread copper ball valve (1), the hollow tube (3) passes through the sealing sleeve (2) and the internal thread copper ball valve (1), a gap (6) is left between the internal thread copper ball valve (1) and the sealing sleeve (2) and the hollow tube (3), and a sealing sleeve (7) is provided in the sealing sleeve (2). ), the sealing sleeve (7) is sleeved on the hollow tube (3) and blocks the gap (6), an exhaust valve (8) is provided on the sealing tube sleeve (2), and the exhaust valve (8) is located between the sealing sleeve (7) and the internal threaded copper ball valve (1), the solid rod (4) is screwed into the hollow tube (3), and both ends of the solid rod (4) extend to the outside of the hollow tube (3), and the expansion plug (5) is connected to the lower end of the solid rod (4).

2. A detachable gas pipeline valve leakage blocking device according to claim 1, characterized in that: The expansion plug (5) is screwed to the solid rod (4).

3. The detachable gas pipeline valve leakage blocking device according to claim 1, characterized in that: The connection between the internally threaded copper ball valve (1) and the sealing sleeve (2) is filled with raw tape.

4. The detachable gas pipeline valve leakage blocking device according to claim 1, characterized in that: The upper end of the solid rod (4) is provided with a connector (9), and a T-shaped wrench (10) is connected to the connector (9).

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