A new natural gas valve

Abstract

The utility model relates to the technical field of gas valve, concretely is a kind of natural gas valve, including valve body and valve cover, the inner wall of valve body is fixedly connected with inner sleeve, and the side wall of one side of inner sleeve is equipped with exhaust hole, the inner wall of inner sleeve is slidably connected with sealing plug, the side wall of valve cover is threadedly connected with screw rod, and the one end of screw rod penetrates valve cover and is rotatably connected with sealing plug, closed structure is arranged in the valve body.The utility model, by setting screw rod and sealing plug cooperation, when rotating screw rod, sealing plug can be driven to move, to increase or reduce the number of exhaust hole exposed, to control natural gas delivery flow, and by setting closed structure, when rotating screw rod, sealing plug can be driven to move and cut off ventilation, sealing plug can drive closed structure, carry out second sealing, to improve the air tightness after cutting off ventilation, to increase the security of the device use.

Description

Technical Field

[0001] This utility model relates to the field of gas valve technology, specifically a novel natural gas valve. Background Technology

[0002] During the use of natural gas, it is necessary to control the natural gas through natural gas valves. For the transportation of natural gas in different environments, appropriate valves need to be set up to meet the conditions for natural gas transportation.

[0003] Currently, a natural gas regulating valve disclosed in authorization announcement number CN223203730U includes a valve, an inlet pipe connected to one side of the bottom of the valve, an outlet pipe connected to the other side of the bottom of the valve, a limit cover fixedly installed inside the valve cavity, and a gas control mechanism installed inside the limit cover; the gas control mechanism includes a through groove opened on one side of the limit cover, a vent cover fixedly installed inside the through groove, and multiple sets of equidistantly distributed gas limiting holes opened on the vent cover. The aforementioned device drives a motor on the mounting bracket, which rotates a screw and pulls the sealing block inside the limiting cover up and down. When the sealing block reaches the set value of the ranging sensor, a signal is sent to the control processor, which then controls the motor to stop rotating the screw. This effectively controls the height of the sealing block inside the limiting cover, thereby adjusting the number of air holes connected to the gas outlet pipe at the upper limit of the vent cover, and thus precisely controlling the natural gas delivery flow rate. However, the sealing block experiences friction as it moves back and forth, which reduces its gas-sealing effect over time, potentially leading to gas leakage. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes a novel natural gas valve.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel natural gas valve, comprising a valve body and a valve cover, wherein an inner sleeve is fixedly connected to the inner wall of the valve body, and an exhaust hole is provided on one side wall of the inner sleeve; a sealing plug is slidably connected to the inner wall of the inner sleeve; a screw is threadedly connected to one side wall of the valve cover, and one end of the screw passes through the valve cover and is rotatably connected to the sealing plug; and a closed structure is provided inside the valve body.

[0006] Preferably, the closed structure includes a baffle fixed to the inner wall of the valve body, and a conical hole is provided on one side wall of the baffle, a conical block is provided on one side of the conical hole, and an elastic support structure is provided inside the valve body.

[0007] Preferably, the elastic support structure includes a sleeve fixedly connected to the valve body, and a spring fixedly connected to the inner wall of the sleeve. One end of the spring is fixedly connected to a connecting rod, and one end of the connecting rod is fixedly connected to the cone block.

[0008] Preferably, a sealing plate is fixedly connected to the upper surface of the cone block.

[0009] Preferably, a sealing bellows is provided between the valve body and the valve cover, and one end of the sealing bellows is fixedly connected to the sealing plug.

[0010] Preferably, one end of the screw is fixedly connected to a rotating block, and the outer wall of the rotating block is provided with anti-slip texture.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention, by setting a screw and a sealing plug to work together, can move the sealing plug when the screw is rotated, thereby increasing or decreasing the number of vent holes exposed, and thus controlling the natural gas delivery flow. Furthermore, by setting a closed structure, when the screw is rotated and the sealing plug moves down to cut off the gas supply, the sealing plug can push against the closed structure to perform a second seal, thereby improving the airtightness after the gas supply is cut off, and thus increasing the safety of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0016] Figure 4 for Figure 2 Enlarged structural diagram at point B.

[0017] In the diagram: 1. Valve body; 2. Valve cover; 3. Inner sleeve; 4. Vent hole; 5. Sealing plug; 6. Screw; 7. Baffle; 8. Tapered hole; 9. Tapered block; 10. Sleeve; 11. Spring; 12. Connecting rod; 13. Sealing plate; 14. Sealing bellows; 15. Rotary block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1 to 4A novel natural gas valve includes a valve body 1 and a valve cover 2. An inner sleeve 3 is fixedly connected to the inner wall of the valve body 1, and an exhaust hole 4 is provided on one side wall of the inner sleeve 3. A sealing plug 5 is slidably connected to the inner wall of the inner sleeve 3. A screw 6 is threadedly connected to one side wall of the valve cover 2, and one end of the screw 6 passes through the valve cover 2 and is rotatably connected to the sealing plug 5. A closed structure is provided inside the valve body 1.

[0020] As can be seen from the above structure, by setting the screw 6 to cooperate with the sealing plug 5, rotating the screw 6 can drive the sealing plug 5 to move, thereby increasing or decreasing the number of vent holes 4 exposed, thus controlling the natural gas transmission flow. Furthermore, by setting the closed structure, when rotating the screw 6 to make the sealing plug 5 move down to cut off the gas supply, the sealing plug 5 can push the closed structure to perform a second seal, thereby improving the airtightness after cutting off the gas supply and increasing the safety of the device.

[0021] Furthermore, the sealing structure includes a baffle 7 fixed to the inner wall of the valve body 1, and a conical hole 8 is provided on one side wall of the baffle 7. A conical block 9 is provided on one side of the conical hole 8, and an elastic support structure is provided inside the valve body 1. By setting the sealing structure composed of the baffle 7 and the conical block 9, when the sealing plug 5 moves down, the sealing plug 5 can push the conical block 9 to move down, so that the conical block 9 blocks the conical hole 8, completing the second seal. In this way, the conical block 9 and the conical hole 8 cooperate to seal, and there is not much sliding friction between the conical block 9 and the conical hole 8, so that the conical block 9 will not be damaged due to friction, and thus the airtightness of the conical block 9 can be guaranteed after long-term use.

[0022] Furthermore, the elastic support structure includes a sleeve 10 fixedly connected to the valve body 1, and a spring 11 fixedly connected to the inner wall of the sleeve 10. One end of the spring 11 is fixedly connected to a connecting rod 12, and one end of the connecting rod 12 is fixedly connected to the cone block 9. By setting an elastic support structure composed of the spring 11 and the connecting rod 12, the spring 11 can automatically push the cone block 9 upward after the sealing plug 5 moves upward.

[0023] Furthermore, a sealing plate 13 is fixedly connected to the upper surface of the cone block 9; by setting the sealing plate 13, a third seal can be formed when the sealing plate 13 and the baffle 7 are in structure.

[0024] Furthermore, a sealing bellows 14 is provided between the valve body 1 and the valve cover 2, and one end of the sealing bellows 14 is fixedly connected to the sealing plug 5; by providing the sealing bellows 14, the threaded connection between the sealing valve cover 2 and the screw 6 can be isolated, thereby improving the sealing performance of the device.

[0025] Furthermore, a rotating block 15 is fixedly connected to one end of the screw 6, and the outer wall of the rotating block 15 is provided with anti-slip texture. By setting the rotating block 15, the screw 6 can be rotated by rotating the rotating block 15.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel natural gas valve, comprising a valve body (1) and a valve cover (2), characterized in that, The inner wall of the valve body (1) is fixedly connected to an inner sleeve (3), and an exhaust hole (4) is opened on one side wall of the inner sleeve (3). A sealing plug (5) is slidably connected to the inner wall of the inner sleeve (3). A screw (6) is threadedly connected to one side wall of the valve cover (2), and one end of the screw (6) passes through the valve cover (2) and is rotatably connected to the sealing plug (5). A closed structure is provided inside the valve body (1).

2. A novel natural gas valve according to claim 1, characterized in that, The closed structure includes a baffle (7) fixed to the inner wall of the valve body (1), and a conical hole (8) is provided on one side wall of the baffle (7). A conical block (9) is provided on one side of the conical hole (8), and an elastic support structure is provided inside the valve body (1).

3. A novel natural gas valve according to claim 2, characterized in that, The elastic support structure includes a sleeve (10) fixedly connected to the valve body (1), and a spring (11) is fixedly connected to the inner wall of the sleeve (10). One end of the spring (11) is fixedly connected to a connecting rod (12), and one end of the connecting rod (12) is fixedly connected to the cone block (9).

4. A novel natural gas valve according to claim 2, characterized in that, A sealing plate (13) is fixedly connected to the upper surface of the cone block (9).

5. A novel natural gas valve according to claim 4, characterized in that, A sealing bellows (14) is provided between the valve body (1) and the valve cover (2), and one end of the sealing bellows (14) is fixedly connected to the sealing plug (5).

6. A novel natural gas valve according to claim 1, characterized in that, One end of the screw (6) is fixedly connected to a rotating block (15), and the outer wall of the rotating block (15) is provided with anti-slip texture.

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