A spark-proof natural gas valve opening device with protective function

By designing components such as sleeves, knobs, grippers, and pins for the spark-proof natural gas valve opening device, the gap problem caused by the wear of the isolating seat was solved, achieving stable clamping and convenient replacement, thus improving the service life and safety of the device.

CN224453871UActive Publication Date: 2026-07-03CHINA TOBACCO JIANGXI IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA TOBACCO JIANGXI IND CO LTD
Filing Date
2025-08-22
Publication Date
2026-07-03

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Abstract

This utility model relates to the technical field of valve opening devices, and more particularly to a spark-proof natural gas valve opening device with protective function. This utility model provides a spark-proof natural gas valve opening device with protective function that prevents gaps between the isolation block and the natural gas valve by adjusting the isolation block, facilitates the replacement and maintenance of the isolation block, and improves its lifespan while being easy to use. A spark-proof natural gas valve opening device with protective function includes a sleeve and knobs, etc., with knobs threadedly connected to both the upper and lower parts of the sleeve. This utility model, by rotating the knob, brings the isolation blocks closer together to maintain the valve clamping, and simultaneously pushes the pin to eject and replace the isolation block. This achieves the effect of preventing gaps between the isolation block and the natural gas valve by adjusting the isolation block, facilitating the replacement and maintenance of the isolation block, improving its lifespan while being easy to use.
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Description

Technical Field

[0001] This utility model relates to the technical field of valve opening devices, and in particular to a spark-proof natural gas valve opening device with protective function. Background Technology

[0002] With the increasing prevalence of natural gas use, its safety has become a growing concern. Natural gas valves, as a crucial component of the natural gas supply system, directly impact the safe operation of the entire system. Current technology typically uses metal wrenches to open and close natural gas valves, which can easily generate sparks during rotation. Therefore, a spark-proof natural gas valve opening device is needed. As illustrated in patent number CN202121029992, a spark-proof opening device for natural gas valves includes a sleeve with a handle installed inside. A first notch is symmetrically formed on the inner wall of the sleeve. An isolation seat is fitted inside the sleeve, and a second notch is symmetrically formed on the outer surface of the isolation seat. An elongated hole is formed between the first and second notches, into which a locating key is inserted. The isolation seat has a matching fitting hole for the natural gas valve in the center. The isolation seat is made of non-metallic material. A locking screw is provided between the sleeve, the locating key, and the isolation seat. A flange is also provided at the bottom of the isolation seat, and the bottom of the sleeve is located on the flange. However, during the opening and closing of the natural gas valve using this device, wear on the isolating seat can easily occur, creating a gap between the isolating seat and the natural gas valve. This can cause the wrench to slip and become difficult to turn, affecting normal use. Therefore, a spark-proof natural gas valve opening device with protective functions has been developed. This device can prevent gaps between the isolating block and the natural gas valve by adjusting the isolating block, and it is also easy to replace and maintain the isolating block, thus improving its lifespan while being easy to use. Utility Model Content

[0003] To overcome the shortcomings of existing natural gas valve opening and closing devices, such as the tendency for the isolating seat to wear out, resulting in a gap between the isolating seat and the natural gas valve, causing wrench slippage and difficulty in tightening, thus affecting normal use, this utility model provides a device that can adjust the isolating block to prevent wear between the isolating block and the natural gas valve.

[0004] A spark-proof natural gas valve opening device with protective functions is designed to facilitate the replacement and maintenance of isolation blocks, thereby improving the lifespan of the valve while allowing for easy use.

[0005] The technical implementation of this utility model is as follows: a spark-proof natural gas valve opening device with protective function, including a valve, and further comprising:

[0006] A sleeve is located on the outside of the valve;

[0007] The adjustment mechanism is symmetrically arranged on both sides of the sleeve and includes a rotatable component and a clamping component linked thereto;

[0008] An isolation component is detachably connected to the inside of the clamping component.

[0009] This tool provides a safe and spark-proof natural gas valve operating system, which uses a sleeve to wrap the valve, an isolation component to block sparks, and an adjustment mechanism to clamp the valve.

[0010] Preferably, the rotatable component includes two knobs that are threadedly connected to the upper and lower parts of the sleeve, and the clamping component includes two grippers that are rotatably connected on the side of the knobs that are close to each other.

[0011] Used to drive the jaws to open and close by rotating a knob, achieving stable clamping of valves or operating components of different sizes.

[0012] Preferably, the isolation assembly includes: an isolation block engaged on one side of the grippers that are close to each other, and a valve engaged between the isolation blocks.

[0013] Used to drive the jaws to open and close by rotating a knob, achieving stable clamping of valves or operating components of different sizes.

[0014] Preferably, the knobs are provided with anti-slip texture.

[0015] This is used to increase the friction on the knob surface, making it easier for the operator to apply force to rotate the knob.

[0016] Preferably, each of the grippers has a T-shaped slot.

[0017] Used to form a stable, reliable, and quick-release snap-fit ​​with the corresponding protrusion on the isolation block.

[0018] Preferably, it further includes an ejection mechanism, which is slidably disposed on the side wall of the sleeve and is used to drive the isolation component to disengage from the clamping component; it includes a push plate and a push rod, and two push rods are slidably connected to the right side of the sleeve, with a push plate connected between the right ends of the two push rods.

[0019] When the isolation block needs to be replaced or maintained, the push plate drives the push rod to push the isolation block out of the slot of the gripper, thus realizing the convenient disassembly of the isolation component.

[0020] Preferably, it further includes a detachable locking component, which penetrates the side wall of the sleeve and forms a limiting engagement with the valve; the locking component includes a pin, which is engaged with the upper right side of the sleeve and engages with the valve.

[0021] Used to insert a pin to lock the relative position of the valve and the sleeve after the device clamps the valve, preventing the device from accidentally loosening or shifting during operation, and improving operational safety and stability.

[0022] Preferably, it also includes a handle and an extended handle, wherein the handle is connected to the front side of the sleeve, and the extended handle is rotatably connected to the handle.

[0023] It provides a basic grip point and an extendable lever arm, allowing the operator to rotate the valve more effortlessly and safely from a safe distance or when greater torque is required.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] This invention allows the isolation blocks to move closer together to maintain valve clamping by rotating a knob. At the same time, pushing the pin allows the isolation block to be pushed out for replacement. This achieves the effect of preventing gaps between the isolation block and the natural gas valve by adjusting the isolation block, facilitating the replacement and maintenance of the isolation block, and improving its lifespan while making it easier to use. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0027] Figure 1 is a three-dimensional structural schematic diagram of this utility model;

[0028] Figure 2 is a three-dimensional structural cross-sectional view of this utility model.

[0029] In the diagram: 1. Valve; 2. Sleeve; 3. Knob; 4. Clamp; 5. Isolation block; 6. Push plate; 7. Push rod; 8. Pin; 9. Handle; 10. Extended handle. Detailed Implementation

[0030] like Figure 1 and Figure 2 As shown, this utility model provides a spark-proof natural gas valve opening device with protective function, including a valve 1, and further including: a sleeve 2, disposed on the outside of the valve 1; and an adjustment mechanism, symmetrically disposed on both sides of the sleeve 2, including a rotatable component and a clamping component linked thereto.

[0031] An isolation component is detachably connected to the inside of the clamping component for non-contact clamping of the operating part of valve 1.

[0032] The rotatable component includes: two knobs 3 connected by threads on the upper and lower parts of the sleeve 2, and each knob 3 is provided with anti-slip texture;

[0033] The clamping assembly includes two grippers 4 rotatably connected on one side of the knob 3 that are close to each other, and each gripper 4 has a T-shaped slot.

[0034] The isolation assembly includes: an isolation block 5 that is engaged on one side of the grippers 4 that are close to each other, and a valve 1 that is engaged between the isolation blocks 5.

[0035] In this embodiment, the screw drive of the knob 3 drives the gripper 4 to retract radially, so that the isolation block 5 clamps the valve 1, and the rotating sleeve 2 drives the valve 1 to rotate.

[0036] This embodiment further includes an ejection mechanism, which is slidably disposed on the side wall of the sleeve 2 and is used to drive the isolation component to disengage from the clamping component; it includes a push plate 6 and a push rod 7, and two push rods 7 are slidably connected to the right side of the sleeve 2. The push plate 6 is connected between the right ends of the two push rods 7, and the two push rods 7 are arranged in parallel, perpendicular to and abutting against the right side of the valve 1.

[0037] It also includes a detachable locking component, which penetrates the side wall of the sleeve 2 and forms a limiting engagement with the valve 1; the locking component includes a pin 8, which is snapped into the upper right side of the sleeve 2, and the pin 8 is snapped into the valve 1.

[0038] In this embodiment, the working principle of replacing the isolation block 5 is as follows: push the push plate 6, drive the push rod 7 to slide to the left and push out the isolation block 5, and the isolation block 5 is dislodged along the side of the T-slot; after the pin 8 is inserted into the operating hole of the valve 1, a mechanical interlock is formed to prevent the device from axially dislodging during operation.

[0039] This embodiment further includes a handle 9 and an extended handle 10. The handle 9 is connected to the front side of the sleeve 2, and the extended handle 10 is rotatably connected to the handle 9.

[0040] When using this device, first move it to the installation position of natural gas valve 1, then rotate it.

[0041] Knob 3, under the action of the thread, causes the jaws 4 to move away from each other and open, causing the isolation blocks 5 to move away from each other. Then, sleeve 2 is placed on valve 1, so that valve 1 is located between the isolation blocks 5. Then, rotating knob 3 in the opposite direction causes the jaws 4 to move closer together, causing the isolation blocks 5 to move closer together and clamp valve 1. Then, rotating sleeve 2 through handle 9 allows valve 1 to be rotated, completing the opening and closing of valve 1. By rotating and opening extension handle 10, handle 9 can be extended, making it easier to rotate handle 9. After sleeve 2 is placed on valve 1, pin 8 can be inserted, so that pin 8 is engaged with valve 1, which can prevent the device from accidentally slipping and injuring the operator during the opening of valve 1. When it is necessary to replace isolation block 5, pull out pin 8, and push the push plate 6 to the left, so that push rod 7 slides to the left, pushing isolation block 5 off the jaws 4 for replacement. This achieves the purpose of replacing isolation block 5. Adjustments are made to prevent gaps between the isolation block 5 and the natural gas valve 1, and to facilitate the replacement and maintenance of the isolation block 5, thereby improving its usability and lifespan.

[0042] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the description above. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A spark-proof natural gas valve opening device with protective function, comprising a valve (1), characterized in that, Also includes: Sleeve (2) is located outside valve (1); The adjustment mechanism is symmetrically arranged on both sides of the sleeve (2), and includes a rotatable component and a clamping component linked thereto; An isolation component is detachably connected to the inside of the clamping component.

2. The spark-proof natural gas valve opening device with a protection function according to claim 1, characterized in that: The rotatable component includes: two knobs (3) connected by threads on the upper and lower parts of the sleeve (2), and the clamping component includes two jaws (4) rotatably connected on the side of the knobs (3) that are close to each other.

3. The spark-proof natural gas valve opener with a protection function according to claim 2, characterized in that: The isolation assembly includes: an isolation block (5) snapped onto one side of the grippers (4) that are close to each other, and a valve (1) snapped between the isolation blocks (5).

4. The spark-proof natural gas valve opener with a protection function according to claim 2, characterized in that: All the knobs (3) have anti-slip textures.

5. A spark-proof natural gas valve opening device with protective function according to claim 2, characterized in that: Each of the grippers (4) has a T-shaped slot.

6. The spark-proof, flame-proof natural gas valve opening device with a protection function according to claim 1, characterized in that: It also includes an ejection mechanism, which is slidably disposed on the side wall of the sleeve (2) and includes a push plate (6) and a push rod (7). The right side of the sleeve (2) is slidably connected to two upper and lower push rods (7), and the push plate (6) is connected between the right ends of the two push rods (7).

7. The spark-resistant, spark-proof, natural gas valve opener of claim 1, wherein: It also includes a detachable locking component, which penetrates the side wall of the sleeve (2) and forms a limiting fit with the valve (1); the locking component includes a pin (8), which is engaged with the upper right side of the sleeve (2), and the pin (8) is engaged with the valve (1).

8. The spark-resistant, flameproof natural gas valve opener of claim 1, wherein: It also includes a handle (9) and an extended handle (10), with the handle (9) connected to the front side of the sleeve (2) and the extended handle (10) rotatably connected to the handle (9).