Fuel gas control valve

Abstract

The utility model relates to a gas control valve, and belongs to the technical field of gas control valves. Comprising a valve body, a handle is arranged at the upper end of the valve body, one end of the handle is movably connected with a limiting mechanism, fixing rings are arranged at the two ends of the valve body, and sealing mechanisms are arranged at the two ends in the valve body. By arranging the limiting mechanism, the position of the handle is limited after the valve is closed, and potential safety hazards caused by the fact that the handle is touched by mistake are avoided; by arranging the sealing mechanism, when gas leaks from the position of the valve, the valve is sealed in time, harm to human health caused by leakage of a large amount of gas is avoided, and the conditions of fire disasters and explosions are avoided.

Description

Technical Field

[0001] The utility model relates to a gas control valve, belonging to the technical field of gas control valves. Background Art

[0002] A gas control valve is a device used to control the flow of gas, which is widely applied in the fields of household, industry and commerce. Their main function is to regulate and control the gas flow to ensure the safe and effective use of gas.

[0003] During the long-term use of gas valves, it is easy for gas to leak from the valve position due to loosening, which poses a hazard to human health and may even cause fires and explosions. At the same time, gas valves are also prone to potential safety hazards due to accidental touch. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is that existing gas control valves are prone to gas leakage from the valve position due to loosening, which poses a hazard to human health and may even cause fires and explosions. At the same time, gas valves are also prone to potential safety hazards due to accidental touch.

[0005] To solve the above problems, the utility model provides a gas control valve, which includes a valve body. A handle is provided at the upper end of the valve body. One end of the handle is movably connected with a limiting mechanism. Fixed rings are provided at both ends of the valve body. Sealing mechanisms are provided at both ends inside the valve body.

[0006] Further: The limiting mechanism includes a movable rod, a limiting piece and a fixed block. The movable rod is movably connected in a hole groove at one end of the handle. The limiting piece is fixedly connected to the lower end of the movable rod. The two fixed blocks are fixedly connected to the outside of the movable rod and are respectively located above and below the handle. A limiting groove adapted to the limiting piece is provided at the upper end of the valve body.

[0007] Further: The sealing mechanism includes an electromagnet ring, a fixed rod, a limiting block and a sealing member. The electromagnet ring is fixedly connected to the inner wall of the valve body. A plurality of fixed rods are fixedly connected to one side of the electromagnet ring. The fixed rods are movably connected with the sealing member. The limiting block is fixedly connected to one end of the fixed rod.

[0008] Further: The sealing member includes a magnetically attracted movable plate and a sealing gasket. The sealing gasket is fixedly connected to one side of the magnetically attracted movable plate. Through holes adapted to the fixed rods are provided on the outside of the magnetically attracted movable plate. The fixed rods are movably connected in the through holes.

[0009] Further: The radius of the sealing gasket is the same as the inner diameter of the electromagnet ring. The radius of the magnetically attracted movable plate is smaller than the outer diameter of the electromagnet ring.

[0010] Further: An annular alarm lamp is sleeved on the outside of the valve body.

[0011] Further: A number of fixing holes are provided inside the fixing ring.

[0012] The advantages of the present utility model compared with the prior art are as follows:

[0013] By providing a limiting mechanism, this patent limits the position of the handle after the valve is closed to prevent the handle from being accidentally touched and causing potential safety hazards. By providing a sealing mechanism, when gas leaks from the valve position, the valve is promptly sealed to prevent a large amount of gas leakage from harming human health and to avoid situations of fire and explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present utility model and form a part of the description. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is the structure of a gas control valve of the present utility model Figure 1 .

[0016] Figure 2 is the structure of a gas control valve of the present utility model Figure 2 .

[0017] Figure 3 is the structure of the sealing mechanism of a gas control valve of the present utility model Figure 1 .

[0018] Figure 4 is the structure of the sealing mechanism of a gas control valve of the present utility model Figure 2 .

[0019] In the drawings:

[0020] 1. Valve body; 11. Handle; 12. Fixing ring; 13. Limiting groove; 14. Alarm lamp; 2. Limiting mechanism; 21. Movable rod; 22. Limiting member; 23. Fixed block; 3. Sealing mechanism; 31. Electromagnetic ring; 32. Fixed rod; 33. Limiting block; 34. Sealing member; 35. Magnetically attracted movable plate; 36. Sealing gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Combined with the attachedFigure 1 , 2 , the present utility model provides a gas control valve, which includes a valve body 1. Fixed rings 12 are provided at both ends of the valve body 1. A number of fixing holes are provided inside the fixed rings 12 to facilitate fixing the valve body 1 to the pipeline. A handle 11 is provided at the upper end of the valve body 1. One end of the handle 11 is movably connected to a limiting mechanism 2. The limiting mechanism 2 includes a movable rod 21, a limiting member 22, and a fixed block 23. The movable rod 21 is movably connected to the hole groove at one end of the handle 11. The limiting member 22 is fixedly connected to the lower end of the movable rod 21. Two fixed blocks 23 are fixedly connected to the outside of the movable rod 21 and are respectively located above and below the handle 11. A limiting groove 13 adapted to the limiting member 22 is provided at the upper end of the valve body 1. After closing the valve, release the fixed block 23, and the limiting member 22 falls into the limiting groove 13 on the valve body 1 to limit the position of the handle 11 and avoid potential safety hazards caused by accidental contact of personnel with the handle 11. When opening the valve, lift the fixed block 23 to lift the limiting member 22 out of the limiting groove 13, and then the handle 11 can be rotated to open the valve;

[0023] Combined with attached Figure 1 , 3 , 4, sealing mechanisms 3 are provided at both ends inside the valve body 1. The sealing mechanism 3 includes an electromagnet ring 31, a fixed rod 32, a limiting block 33, and a sealing member 34. The electromagnet ring 31 is fixedly connected to the inner wall of the valve body 1. A number of fixed rods 32 are fixedly connected to one side of the electromagnet ring 31. The fixed rod 32 is movably connected to the sealing member 34. The limiting block 33 is fixedly connected to one end of the fixed rod 32. The sealing member 34 includes a magnetic attraction movable plate 35 and a sealing gasket 36. The sealing gasket 36 is fixedly connected to one side of the magnetic attraction movable plate 35. The radius of the sealing gasket 36 is the same as the inner diameter of the electromagnet ring 31. A through hole adapted to the fixed rod 32 is provided on the outside of the magnetic attraction movable plate 35. The fixed rod 32 is movably connected to the through hole. When a sensor installed inside the valve body 1 detects gas leakage, the electromagnet ring 31 is energized to generate magnetism, causing the magnetic attraction movable plate 35 to move along the fixed rod 32 and fit with the electromagnet ring 31. The sealing gasket 36 enters the electromagnet ring 31 to seal the valve body 1 and prevent gas from continuing to leak. An annular alarm lamp 14 is sleeved outside the valve body 1. The alarm lamp 14 is energized and flashes to remind nearby personnel. When the valve is in normal use, the electromagnet ring 31 is de-energized and loses magnetism. The magnetic attraction movable plate 35 moves in the direction away from the electromagnet ring 31 under gas pressure. The radius of the magnetic attraction movable plate 35 is smaller than the outer diameter of the electromagnet ring 31, and gas can pass through the valve normally.

[0024] The working principle of this application is as follows:

[0025] After closing the valve, loosen the fixing block 23, and the limiting member 22 falls into the limiting groove 13 on the valve body 1 to limit the position of the handle 11, preventing accidental contact with the handle 11 by personnel and avoiding potential safety hazards. When opening the valve, lift the fixing block 23 to lift the limiting member 22 out of the limiting groove 13, and then the handle 11 can be rotated to open the valve. When the sensor installed inside the valve body 1 detects gas leakage, the electromagnet ring 31 is energized to generate magnetism, causing the magnetic attraction movable plate 35 to move along the fixed rod 32 and fit with the electromagnet ring 31. The sealing gasket 36 enters the electromagnet ring 31 to seal the valve body 1 and prevent further gas leakage. When the valve is in normal use, the electromagnet ring 31 is de-energized and loses magnetism, and the magnetic attraction movable plate 35 moves in the direction away from the electromagnet ring 31 under the gas pressure, allowing gas to pass through the valve normally.

[0026] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. In short, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A gas control valve, comprising a valve body (1), characterized in that: The upper end of the valve body (1) is provided with a handle (11). One end of the handle (11) is movably connected to a limiting mechanism (2). Fixed rings (12) are provided at both ends of the valve body (1). Sealing mechanisms (3) are provided at both ends inside the valve body (1).

2. The gas control valve according to claim 1, characterized in that: The limiting mechanism (2) includes a movable rod (21), a limiting member (22), and a fixed block (23). The movable rod (21) is movably connected to the hole groove at one end of the handle (11). The limiting member (22) is fixedly connected to the lower end of the movable rod (21). The two fixed blocks (23) are fixedly connected to the outer side of the movable rod (21) and are respectively located above and below the handle (11). A limiting groove (13) adapted to the limiting member (22) is provided at the upper end of the valve body (1).

3. A gas control valve according to claim 1, characterized in that: The sealing mechanism (3) includes an electromagnet ring (31), a fixed rod (32), a limiting block (33), and a sealing member (34). The electromagnet ring (31) is fixedly connected to the inner wall of the valve body (1). A plurality of fixed rods (32) are fixedly connected to one side of the electromagnet ring (31). The fixed rod (32) is movably connected to the sealing member (34). The limiting block (33) is fixedly connected to one end of the fixed rod (32).

4. The gas control valve according to claim 3, wherein: The sealing member (34) includes a magnetically attracted movable plate (35) and a sealing gasket (36). The sealing gasket (36) is fixedly connected to one side of the magnetically attracted movable plate (35). A through hole adapted to the fixed rod (32) is provided on the outer side of the magnetically attracted movable plate (35). The fixed rod (32) is movably connected to the through hole.

5. The gas control valve according to claim 4, characterized in that: The radius of the sealing gasket (36) is the same as the inner diameter of the electromagnet ring (31). The radius of the magnetically attracted movable plate (35) is smaller than the outer diameter of the electromagnet ring (31).

6. A gas control valve according to claim 1, characterized in that: An annular warning light (14) is sleeved outside the valve body (1).

7. The gas control valve according to claim 1, characterized in that: A plurality of fixing holes are provided in the fixed ring (12).

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