Gas pipeline diverter valve

Abstract

The utility model relates to the technical field of gas valves, in particular to a gas pipeline diverter valve which comprises a valve body, a valve rod is rotationally connected to the valve body, one end of the valve rod extends into the valve body and is fixedly connected with a valve element, each valve port of the valve body is connected with a flange, and a plurality of open covers are connected to the valve body in a sliding mode. The inner wall of each open cover is fixedly connected with a sealing ring, and each sealing ring is matched with the corresponding flange. The sealing ring is driven to move through the open cover, the sealing ring makes contact with the outer wall of the flange and the outer wall of the gas pipe flange, the flange and the gas pipe flange are covered after the open cover moves by a certain distance, the contact position of the flange and the gas pipe flange is extruded and sealed through the sealing ring, and the connection position of the flange and the gas pipe flange is isolated from external air; therefore, the sealing performance of the joint of the flange and the gas pipe flange is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas valve technology, and in particular to a gas pipeline diversion valve. Background Technology

[0002] A gas valve is a new type of safety accessory for gas pipeline projects. It is used to cut off, connect, and regulate the gas in the pipeline. It has good control characteristics and sealing performance and is suitable for pipelines carrying various gas media such as city gas, liquefied petroleum gas, natural gas, and oxygen.

[0003] A gas pipeline diversion valve is a device used to control the direction of gas flow, allowing gas to be diverted from a main pipeline to multiple branch pipelines, or switched between different pipelines. It plays a key role in the gas transmission and distribution system, ensuring that gas is safely and efficiently delivered to various points of use.

[0004] When in use, the gas diverter valve is connected to the gas pipeline end flange through the valve port flange. There is a gap between the valve port flange and the gas pipeline end flange, and the valve port flange and the gas pipeline end flange are exposed to the air, resulting in poor sealing performance. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology where the valve port flange and the gas pipeline end flange are exposed to the air, resulting in poor sealing effect, and therefore a gas pipeline diversion valve is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A gas pipeline diversion valve is designed, including a valve body, a valve stem rotatably connected to the valve body, one end of the valve stem extending into the valve body and fixedly connected to a valve core, a flange connected to each valve port of the valve body, and several open masks slidably connected to the valve body, with a sealing ring fixedly connected to the inner wall of each open mask, and each sealing ring cooperating with the corresponding flange.

[0008] Preferably, the sealing ring is a corrosion-resistant rubber ring, and the inner wall of the sealing ring is in close contact with the outer wall of the flange.

[0009] Preferably, a handle is fixedly connected to the other end of the valve stem, an anti-slip sleeve is fitted onto the handle, and two parallel fixing nuts are fixedly connected to the other end of the valve stem, with the handle located between the two fixing nuts.

[0010] Preferably, a fixing sleeve is fixedly connected to the valve stem, and a fixing ring is fixedly connected to the fixing sleeve.

[0011] Preferably, a fixing plate is fixedly connected to the upper end of each of the open-face masks, an L-shaped plate is fixedly connected to the upper end of each fixing plate, a first spring is fixedly connected to the lower surface of each L-shaped plate, and one end of each first spring is fixedly connected to the corresponding open-face mask.

[0012] Preferably, one end of each L-shaped plate is slidably connected to a grooved post, and a second spring is fixedly connected inside each grooved post. One end of each second spring is fixedly connected to the corresponding L-shaped plate.

[0013] The gas pipeline diversion valve proposed in this utility model has the following advantages:

[0014] The open mask moves the sealing ring, which then contacts the outer wall of the flange and the outer wall of the gas pipe flange. After moving a certain distance, the open mask covers the flange and the gas pipe flange. The sealing ring squeezes and seals the contact point between the flange and the gas pipe flange, blocking the connection between the flange and the gas pipe flange from the outside air, thereby improving the sealing performance of the connection between the flange and the gas pipe flange. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the gas pipeline diversion valve proposed in this utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the gas pipeline diversion valve proposed in this utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the connection between the open faceplate and the fixed plate in the gas pipeline diversion valve proposed in this utility model;

[0018] Figure 4 This is a cross-sectional view of the connection between the open faceplate and the fixed plate in the gas pipeline diversion valve proposed in this utility model.

[0019] In the diagram: 1. Valve body; 2. Valve stem; 3. Handle; 4. Flange; 5. Fixing sleeve; 6. Fixing ring; 7. Opening mask; 8. Sealing ring; 9. Fixing plate; 10. L-shaped plate; 11. First spring; 12. Groove column; 13. Second spring. Detailed Implementation

[0020] 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.

[0021] Example 1: Refer to Figure 1-3A gas pipeline diversion valve includes a valve body 1, a valve stem 2 rotatably connected to the valve body 1, one end of the valve stem 2 extending into the valve body 1 and fixedly connected to a valve core, the valve core cooperating with the valve body 1, and a handle 3 fixedly connected to the other end of the valve stem 2. A non-slip sleeve is fitted onto the handle 3 to increase friction between the hand and the handle 3, facilitating rotation of the handle 3. Two parallel fixing nuts are fixedly connected to the other end of the valve stem 2, with the handle 3 positioned between the two fixing nuts, which secure the handle 3 and improve its fixing effect. A fixing sleeve 5 is fixedly connected to valve body 1, and a fixing ring 6 is fixedly connected to the fixing sleeve 5. The fixing ring 6 is located above valve body 1 and shields the connection between valve stem 2 and valve body 1 to reduce debris falling at the connection between valve stem 2 and valve body 1. Each valve port of valve body 1 is connected to a flange 4. Several open faceplates 7 are slidably connected to valve body 1. A sealing ring 8 is fixedly connected to the inner wall of each open faceplate 7. Each sealing ring 8 mates with the corresponding flange 4. The sealing ring 8 is a corrosion-resistant rubber ring, and the inner wall of the sealing ring 8 is in close contact with the outer wall of the flange 4.

[0022] Work process:

[0023] The gas pipeline flange is bolted to different flanges 4. Then, the open cover 7 is pushed, and the open cover 7 drives the sealing ring 8 to move. The sealing ring 8 contacts the outer wall of the flange 4 and the outer wall of the gas pipeline flange. After the open cover 7 moves a certain distance, it covers the flange 4 and the gas pipeline flange. The sealing ring 8 squeezes and seals the contact point of the flange 4 and the gas pipeline flange, blocking the connection between the flange 4 and the gas pipeline flange from the outside air, thereby improving the sealing performance of the connection between the flange 4 and the gas pipeline flange.

[0024] The handle 3 drives the valve stem 2 to rotate, and the valve stem 2 drives the valve core to rotate, controlling the conduction of the valve body 1 and diverting the gas.

[0025] Example 2: In Example 1, when the flange 4 and the gas pipe flange are covered by the cover 7, the sealing ring 8 is used to limit the movement through friction between it and the flange 4 and the gas pipe flange. The fixing effect of the cover 7 is poor. Refer to Figure 3-4 As another preferred embodiment of this utility model, the difference from embodiment 1 is that each open mask 7 is fixedly connected to a fixing plate 9 at its upper end, each fixing plate 9 is fixedly connected to an L-shaped plate 10 at its upper end, each L-shaped plate 10 is fixedly connected to a first spring 11 on its lower surface, one end of each first spring 11 is fixedly connected to the corresponding open mask 7, one end of each L-shaped plate 10 is slidably connected to a groove post 12, each groove post 12 is fixedly connected to a second spring 13, and one end of each second spring 13 is fixedly connected to the corresponding L-shaped plate 10.

[0026] Pushing the grooved column 12 upwards causes it to move and compress the second spring 13. The second spring 13 generates elastic force after being compressed. The grooved column 12 moves upwards and is positioned above the flange 4. After the open cover 7 covers the flange 4 and the gas pipe flange, the grooved column 12 is released. Under the elastic force of the second spring 13, the grooved column 12 moves back to its original position and contacts the gas pipe flange. The first spring 11 limits and fixes the L-shaped plate 10, so that the grooved column 12 is located on one side of the gas pipe flange, improving the fixing effect of the open cover 7.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gas pipeline diversion valve, comprising a valve body (1), wherein a valve stem (2) is rotatably connected to the valve body (1), one end of the valve stem (2) extends into the valve body (1) and is fixedly connected to a valve core, characterized in that, in: Each valve port of the valve body (1) is connected to a flange (4), and a plurality of open masks (7) are slidably connected to the valve body (1). A sealing ring (8) is fixedly connected to the inner wall of each open mask (7), and each sealing ring (8) cooperates with the corresponding flange (4).

2. The gas pipeline diversion valve according to claim 1, characterized in that, The sealing ring (8) is a corrosion-resistant rubber ring, and the inner wall of the sealing ring (8) is in close contact with the outer wall of the flange (4).

3. The gas pipeline diversion valve according to claim 1, characterized in that, The other end of the valve stem (2) is fixedly connected to a handle (3), and an anti-slip sleeve is fitted on the handle (3). The other end of the valve stem (2) is fixedly connected to two parallel fixing nuts, and the handle (3) is located between the two fixing nuts.

4. The gas pipeline diversion valve according to claim 3, characterized in that, A fixing sleeve (5) is fixedly connected to the valve stem (2), and a fixing ring (6) is fixedly connected to the fixing sleeve (5).

5. The gas pipeline diversion valve according to claim 1, characterized in that, Each of the open-face masks (7) is fixedly connected to a fixing plate (9) at its upper end, and each of the fixing plates (9) is fixedly connected to an L-shaped plate (10) at its upper end. Each of the L-shaped plates (10) is fixedly connected to a first spring (11) on its lower surface, and one end of each first spring (11) is fixedly connected to the corresponding open-face mask (7).

6. The gas pipeline diversion valve according to claim 5, characterized in that, Each L-shaped plate (10) has a grooved post (12) slidably connected to one end, and a second spring (13) is fixedly connected inside each grooved post (12). One end of each second spring (13) is fixedly connected to the corresponding L-shaped plate (10).

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