Gas self-closing valve pipeline connection auxiliary device

Abstract

This utility model relates to the field of pipeline connection auxiliary devices, and discloses a gas self-closing valve pipeline connection auxiliary device, including a gas pipe, a connector fixedly connected to the right end of the gas pipe, a connecting sleeve threadedly connected to the right side of the connector, a valve pipe fixedly connected to the right end of the connecting sleeve, a sealing assembly jointly provided between the connector and the connecting sleeve, and an auxiliary assembly provided outside the sealing assembly. The sealing assembly includes a connecting ring, sealing rings fixedly connected to both sides of the connecting ring, and a limiting ring fixedly connected to the outer wall of the connecting ring. The connection points of the limiting ring and the left and right sides of the connecting ring form an installation groove. In this utility model, by setting the mutual cooperation between the connecting ring and the sealing ring, the limiting ring, the installation groove, and the connector and connecting sleeve, the sealing operation between the connector and the connecting sleeve is made simpler, more convenient, easier to control, and more practical.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection auxiliary devices, and in particular to a gas self-closing valve pipeline connection auxiliary device. Background Technology

[0002] A gas automatic shut-off valve, also known as a gas safety valve or gas automatic locking valve, is a safety device used in gas pipelines. When it detects a gas leak, proximity of an ignition source, or abnormal pressure, it automatically shuts off to prevent the leak from causing a fire or explosion. To ensure a safe and secure connection between the valve and the pipeline, and for ease of installation and maintenance, some auxiliary devices are required.

[0003] Some existing gas self-closing valves are installed with pipelines by wrapping PTFE tape around the external threads of the pipe joint and then tightening the pipe joint to the internal threads of the gas self-closing valve. However, using PTFE tape for sealing has several problems. First, the PTFE tape must be wrapped correctly along the thread direction. If it is too loose, it may lead to poor sealing, while if it is too tight, it may affect the thread engagement or cause the PTFE tape to break. Second, the number of wrapping layers needs to be precisely controlled. Insufficient wrapping layers may lead to leakage, while too many layers may prevent the threads from being fully tightened or even damage the pipe fittings. Therefore, using PTFE tape for sealing is not practical enough. To address these issues, an auxiliary device for connecting gas self-closing valves to pipelines is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a gas self-closing valve pipeline connection auxiliary device, which aims to improve the problem that the existing technology of using PTFE tape for sealing has difficulty in ensuring the tightness of the PTFE tape winding and accurately controlling the number of winding turns, resulting in the risk of leakage or pipe damage.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a gas self-closing valve pipeline connection auxiliary device, including a gas pipe, a connector fixedly connected to the right end of the gas pipe, a connecting sleeve threadedly connected to the right side of the connector, a valve pipe fixedly connected to the right end of the connecting sleeve, a sealing assembly jointly provided between the connector and the connecting sleeve, an auxiliary assembly provided outside the sealing assembly, the sealing assembly including a connecting ring, sealing rings fixedly connected to both the left and right sides of the connecting ring, a limiting ring fixedly connected to the outer wall of the connecting ring, the connection points of the limiting ring and the left and right sides of the connecting ring forming an installation groove, and the connector and the connecting sleeve respectively movably connected to the two installation grooves.

[0006] As a further description of the above technical solution:

[0007] The limiting ring has connecting grooves on both its left and right sides.

[0008] As a further description of the above technical solution:

[0009] A rubber ring is movably connected inside the connecting groove.

[0010] As a further description of the above technical solution:

[0011] The connecting groove has inclined annular surfaces on both the left and right sides.

[0012] As a further description of the above technical solution:

[0013] The auxiliary component includes a first fixing sleeve, and a second fixing sleeve is provided on the right side of the first fixing sleeve. The first fixing sleeve is movably connected to the connector, and the second fixing sleeve is movably connected to the connecting sleeve.

[0014] As a further description of the above technical solution:

[0015] A threaded ring is fixedly connected to the right side of the first fixing sleeve, and the threaded ring is threadedly connected to the second fixing sleeve.

[0016] As a further description of the above technical solution:

[0017] Both the first and second fixing sleeves have oblique ring grooves on their adjacent sides, and the limiting ring and rubber ring are movably connected to the oblique ring grooves.

[0018] As a further description of the above technical solution:

[0019] The diameter of the inclined annular groove on the side closer to the limiting ring is larger than the diameter on the side farther from the limiting ring.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by setting the connecting ring and sealing ring, as well as the limiting ring, the mounting groove and the joint and connecting sleeve to cooperate with each other, the sealing operation between the joint and the connecting sleeve is made simpler, more convenient, easier to control, and more practical.

[0022] 2. In this utility model, by setting the mutual cooperation between the fixing sleeve and the limiting ring, the limiting ring can limit the position of the auxiliary component. At the same time, by setting the mutual cooperation between the inclined ring groove opened in the fixing sleeve and the rubber ring and other components, the sealing performance of the pipeline connection can be further improved, making it more practical. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of an auxiliary device for connecting a gas self-closing valve pipeline according to the present invention.

[0024] Figure 2This is a cross-sectional structural diagram of the connector, connecting sleeve, sealing component, and auxiliary component of a gas self-closing valve pipeline connection auxiliary device proposed in this utility model.

[0025] Figure 3 This is a structural diagram showing the disassembled components of the connector, connecting sleeve, sealing assembly, and auxiliary assembly of a gas self-closing valve pipeline connection auxiliary device proposed in this utility model.

[0026] Legend:

[0027] 1. Gas pipe; 2. Connector; 3. Connecting sleeve; 4. Valve pipe; 5. Auxiliary components; 6. Sealing components; 61. Connecting ring; 62. Sealing ring; 63. Limiting ring; 64. Connecting groove; 65. Rubber ring; 611. Mounting groove; 51. First fixing sleeve; 52. Second fixing sleeve; 53. Threaded ring; 54. Inclined ring groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-3 This utility model provides an embodiment of a gas self-closing valve pipeline connection auxiliary device, including a gas pipe 1 for transporting gas, a connector 2 fixedly connected to the right end of the gas pipe 1 for connecting with a self-closing valve, a connecting sleeve 3 threadedly connected to the right side of the connector 2 for mounting on the self-closing valve and connecting the self-closing valve to the pipeline, a valve pipe 4 fixedly connected to the right end of the connecting sleeve 3, which is the pipeline of the self-closing valve itself, a sealing component 6 is provided between the connector 2 and the connecting sleeve 3 for ensuring the sealing performance at the connection between the self-closing valve and the pipeline, and an auxiliary component 5 is provided outside the sealing component 6 to further improve the sealing performance.

[0030] Furthermore, the sealing assembly 6 includes a connecting ring 61, which is used to connect various components. It can be made of hard plastic or metal. A sealing ring 62, which can be made of rubber, is fixedly connected to both sides of the connecting ring 61 for sealing between the connector 2 and the connecting sleeve 3. A limiting ring 63 is fixedly connected to the outer wall of the connecting ring 61. It is an integral structure with the connecting ring 61 and is made of the same material as the connecting ring 61. The connection between the limiting ring 63 and the left and right sides of the connecting ring 61 forms an installation groove 611, which is used to install the connector 2 and the connecting sleeve 3. The connector 2 and the connecting sleeve 3 are movably connected to the two installation grooves 611 respectively. A connecting groove 64 is provided on both sides of the limiting ring 63 for connecting a rubber ring 65. The rubber ring 65 is movably connected in the connecting groove 64 and can deform to a certain extent. An inclined annular surface is provided on both sides of the connecting groove 64 for connecting with the inclined annular groove 54.

[0031] Furthermore, the auxiliary component 5 includes a first fixing sleeve 51, with a second fixing sleeve 52 located on the right side of the first fixing sleeve 51. The two fixing sleeves work together to improve the sealing performance of the sealing component 6. The first fixing sleeve 51 is movably connected to the connector 2, and the second fixing sleeve 52 is movably connected to the connecting sleeve 3. A threaded ring 53 is fixedly connected to the right side of the first fixing sleeve 51, and the threaded ring 53 is threadedly connected to the second fixing sleeve 52. This threaded ring is used to secure the first fixing sleeve 51 and the second fixing sleeve 52. Both the fixed sleeve 51 and the second fixed sleeve 52 have inclined annular grooves 54 on their adjacent sides. These grooves are used to fit and abut against the limiting ring 63 to match the limiting ring 63's positioning. At the same time, the inclined surfaces can compress the rubber ring 65, thereby sealing the gap between the fixed sleeve and the limiting ring 63 and improving the sealing performance. Both the limiting ring 63 and the rubber ring 65 are movably connected to the inclined annular grooves 54. The diameter of the inclined annular groove 54 on the side closer to the limiting ring 63 is larger than the diameter on the side farther away from the limiting ring 63.

[0032] Working principle: First, the rubber ring 65 is inserted into the connecting groove 64. Then, the first fixing sleeve 51 is placed on the outside of the connector 2, and the second fixing sleeve 52 is placed on the outside of the connecting sleeve 3. Next, the connecting ring 61 of the sealing component 6 is placed on the outside of the threaded tube of the connector 2, so that the connector 2 can be inserted into the mounting groove 611 on the left side between the connecting ring 61 and the limiting ring 63, so that the connector 2 contacts the sealing ring 62 on the left side. Then, the connector 2 and the connecting sleeve 3 are tightened, so that the connecting sleeve 3 is inserted into the mounting groove 611 on the right side and contacts the sealing ring 62 on the right side. As the connector 2 and the connecting sleeve 3 are tightened, the connector 2 and the connecting sleeve 3 will press the connecting ring 61 and the sealing rings 62 on both sides against each other, thereby achieving a sealing effect.

[0033] Then, the first fixing sleeve 51 and the second fixing sleeve 52 can be tightened and fixed by the threaded ring 53. After the first fixing sleeve 51 and the second fixing sleeve 52 are fixed, the inclined ring groove 54 inside the two fixing sleeves will abut against the limiting ring 63. The limiting ring 63 will then limit the position of the two fixing sleeves to prevent the auxiliary component 5 from moving left and right. At the same time, when the first fixing sleeve 51 and the second fixing sleeve 52 are tightened, their inner inclined ring surfaces will squeeze the rubber ring 65, thereby deforming the rubber ring 65. The rubber ring 65 can be used to seal the gap between the limiting ring 63 and the fixing sleeve, thereby further improving the sealing performance of the connection between the pipeline and the self-closing valve.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gas self-closing valve pipeline connection auxiliary device, comprising a gas pipe (1), characterized in that: The right end of the gas pipe (1) is fixedly connected to a connector (2), the right side of the connector (2) is threadedly connected to a connecting sleeve (3), the right end of the connecting sleeve (3) is fixedly connected to a valve pipe (4), a sealing component (6) is provided between the connector (2) and the connecting sleeve (3), and an auxiliary component (5) is provided outside the sealing component (6). The sealing assembly (6) includes a connecting ring (61), and sealing rings (62) are fixedly connected to both the left and right sides of the connecting ring (61). A limiting ring (63) is fixedly connected to the outer wall of the connecting ring (61). The connection between the limiting ring (63) and the left and right sides of the connecting ring (61) forms an installation groove (611). The connector (2) and the connecting sleeve (3) are movably connected to the two installation grooves (611) respectively.

2. The gas self-closing valve pipeline connection auxiliary device according to claim 1, characterized in that: The limiting ring (63) has connecting grooves (64) on both the left and right sides.

3. The gas self-closing valve pipeline connection auxiliary device according to claim 2, characterized in that: A rubber ring (65) is movably connected inside the connecting groove (64).

4. The auxiliary device for connecting a gas self-closing valve pipeline according to claim 3, characterized in that: The connecting groove (64) has inclined annular surfaces on both the left and right sides.

5. The auxiliary device for connecting a gas self-closing valve pipeline according to claim 1, characterized in that: The auxiliary component (5) includes a first fixing sleeve (51), and a second fixing sleeve (52) is provided on the right side of the first fixing sleeve (51). The first fixing sleeve (51) is movably connected to the connector (2), and the second fixing sleeve (52) is movably connected to the connecting sleeve (3).

6. The auxiliary device for connecting a gas self-closing valve pipeline according to claim 5, characterized in that: A threaded ring (53) is fixedly connected to the right side of the first fixing sleeve (51), and the threaded ring (53) is threadedly connected to the second fixing sleeve (52).

7. The gas self-closing valve pipeline connection auxiliary device according to claim 6, characterized in that: The first fixing sleeve (51) and the second fixing sleeve (52) are both provided with inclined ring grooves (54) on the side that are close to each other. The limiting ring (63) and the rubber ring (65) are movably connected to the inclined ring grooves (54).

8. The gas self-closing valve pipeline connection auxiliary device according to claim 7, characterized in that: The diameter of the inclined annular groove (54) on the side closer to the limiting ring (63) is larger than the diameter on the side farther away from the limiting ring (63).

Images