Gas pipeline valve with good sealing performance

Abstract

The utility model discloses a gas pipeline valve with good sealing performance, and particularly relates to the field of pipeline valves, the gas pipeline valve comprises a valve body, an easy-to-disassemble leakproof filter screen mechanism is arranged in the valve body, the easy-to-disassemble leakproof filter screen mechanism comprises four elastic supporting columns fixedly arranged at the bottom in the valve body, and the top ends of the four elastic supporting columns are clamped with limiting mounting blocks; a gas filter screen is fixedly arranged in the limiting mounting block, a lantern ring is fixedly arranged on the four elastic supporting columns, an extending pressing plate is fixedly arranged on the lantern ring, a mounting column is fixedly arranged at the top of the valve body, a threaded column is in threaded connection with the interior of the mounting column, and a gas blocking block is fixedly arranged at the bottom of the threaded column. According to the utility model, when the fuel gas filter screen is replaced, the fuel gas conveying is cut off, the safety of the operation process is ensured, the fuel gas filter screen is convenient to replace, the replacement time and the labor cost are saved, the fuel gas leakage risk possibly caused by improper replacement operation is reduced, and the stability and the reliability of fuel gas use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline valves, and more specifically, the utility model relates to a gas pipeline valve with good sealing performance. Background Technique

[0002] Gas use valves play multiple important roles. Firstly, they can conveniently control the on-off of gas. When users do not use gas, closing it can effectively prevent accidents and ensure safety. Secondly, they are the key to safety protection. When there are emergencies such as gas equipment failures or leaks, quickly closing the valve can prevent gas from continuing to leak and minimize the accident risk and losses to the greatest extent.

[0003] Impurities and particulate matters in gas can damage gas meters, which may reduce their metering accuracy. For example, diaphragm gas meters are prone to slow-metering after long-term use, and it will also cause internal blockages. Therefore, a filter screen is needed to filter impurities in gas. However, after long-term use, the gas filter screen will become blocked, resulting in unsmooth gas flow. Moreover, when replacing the gas filter screen inside the valve, it is impossible to ensure that the gas is disconnected at the same moment of replacement, which makes the replacement process of the gas filter screen both dangerous and cumbersome. Content of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, a gas pipeline valve with good sealing performance is provided to solve the problems proposed in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A gas pipeline valve with good sealing performance includes a valve body, and a detachable leak-proof filter screen mechanism is arranged inside the valve body;

[0007] The detachable leak-proof filter screen mechanism includes four elastic columns fixedly arranged at the bottom inside the valve body. A limit installation block is clamped at the top ends of the four elastic columns. A gas filter screen is fixedly arranged inside the limit installation block. A sleeve ring is fixedly arranged on the four elastic columns. An extension pressing plate is fixedly arranged on the sleeve ring. An installation column is fixedly arranged at the top of the valve body. A threaded column is in threaded connection inside the installation column. A gas blocking block is fixedly arranged at the bottom of the threaded column;

[0008] Through the above technical solutions, when replacing the gas filter screen, the operation is simple. By rotating the handle, the threaded column can be matched with the installation column. The gas blocking block is inserted into the limit through hole and presses the limit installation block. The elastic columns drive the gas filter screen to withdraw. When the gas blocking block is inserted in place, the connection between the valve body and the gas meter connecting pipe can be disconnected. Press the extension pressing plate, the elastic columns drive the sleeve ring, and the new sleeve ring is clamped to complete the replacement.

[0009] Further, a limiting ring is fixedly arranged on the gas blocking block, and a handle is fixedly arranged at the top of the threaded column;

[0010] Through the above technical solution, setting the limiting ring can prevent the gas blocking block from passing through the limiting through hole, and setting the handle can facilitate the rotation of the threaded column.

[0011] Further, the gas filter screen is made of nylon material, and the gas blocking block is made of nitrile rubber material;

[0012] Through the above technical solution, the nylon gas filter screen can effectively filter impurities in the gas and has a relatively low cost. The gas blocking block made of rubber material has good elasticity and flexibility and can closely fit the sealing part.

[0013] Further, a gas delivery pipe is arranged on one side of the valve body, and a gas meter connecting pipe is fixedly arranged on the side of the valve body far from the gas delivery pipe;

[0014] Through the above technical solution, the gas delivery pipe can be used to deliver gas, and the gas meter connecting pipe is provided to connect the gas meter.

[0015] Further, rubber clamping blocks are fixedly arranged on both sides of the valve body, and clamping grooves are formed in both the gas delivery pipe and the gas meter connecting pipe;

[0016] Through the above technical solution, the rubber clamping blocks on the valve body can be clamped with the clamping grooves on the gas delivery pipe and the gas meter connecting pipe.

[0017] Further, first flange plates are fixedly arranged on both the gas delivery pipe and the gas meter connecting pipe, and two second flange plates are fixedly arranged on the valve body;

[0018] Through the above technical solution, the gas delivery pipe and the gas meter connecting pipe can be connected to the valve body through the first flange plate and the second flange plate.

[0019] Further, a baffle is fixedly arranged inside the valve body, and a limiting through hole is penetrated through the baffle;

[0020] Through the above technical solution, setting the baffle can block the passage of gas, and setting the limiting through hole can prevent the elastic strut from pushing the limiting mounting block out of the limiting through hole.

[0021] The technical effects and advantages of the present utility model:

[0022] 1. A gas pipeline valve with good sealing performance proposed by the present utility model. Through the arrangement of elastic struts, limit mounting blocks, gas filters, collar rings, extension pressing plates, mounting columns, threaded columns and gas blocking blocks, it can disconnect the gas transmission while replacing the gas filter, ensuring the safety of the operation process, facilitating the replacement of the gas filter, saving the replacement time and labor costs, reducing the risk of gas leakage that may be caused by improper replacement operation, and improving the stability and reliability of gas use.

[0023] 2. A gas pipeline valve with good sealing performance proposed by the present utility model. The rubber clamping blocks on the valve body can be clamped with the card slots on the gas transmission pipe and the gas meter connecting pipe, which can effectively increase the sealing performance of the connection. The rubber material has good elasticity and flexibility, and can fully fill the possible tiny gaps at the connection, thus effectively preventing the gas from leaking from the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the structural diagram proposed by the present utility model;

[0025] Figure 2 is the half-sectional structural diagram proposed by the present utility model;

[0026] Figure 3 is the structural diagram of the detachable anti-leakage filter mechanism proposed by the present utility model;

[0027] Figure 4 is the structural diagram of the valve body proposed by the present utility model;

[0028] Figure 5 is Figure 2 the structural diagram at position A in

[0029] Figure 6 is the structural diagram of the baffle proposed by the present utility model.

[0030] Reference numerals are: 1. Valve body; 2. Elastic strut; 3. Limit mounting block; 4. Gas filter; 5. Collar ring; 6. Extension pressing plate; 7. Mounting column; 8. Threaded column; 9. Gas blocking block; 10. Limit ring; 11. Handle; 12. Gas transmission pipe; 13. Gas meter connecting pipe; 14. Rubber clamping block; 15. Card slot; 16. First flange; 17. Second flange; 18. Baffle; 19. Limit through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0032] As shown in the attached Figures 1-5 drawing, a gas pipeline valve with good sealing performance includes a valve body 1, and a detachable leak-proof filter mechanism is provided inside the valve body 1;

[0033] The detachable leak-proof filter mechanism includes four elastic struts 2 fixedly arranged at the bottom inside the valve body 1. A limit mounting block 3 is clamped at the top ends of the four elastic struts 2. A gas filter screen 4 is fixedly arranged inside the limit mounting block 3. A collar 5 is fixedly arranged on the four elastic struts 2. An extension pressing plate 6 is fixedly arranged on the collar 5. An installation column 7 is fixedly arranged at the top of the valve body 1. A threaded column 8 is threadedly connected inside the installation column 7. A gas blocking block 9 is fixedly arranged at the bottom of the threaded column 8. When replacing the gas filter screen 4, the operation is simple. By rotating the handle 11, the threaded column 8 can be matched with the installation column 7. The gas blocking block 9 is inserted into the limit through hole 19 and presses the limit mounting block 3. The elastic struts 2 drive the gas filter screen 4 to withdraw. When the gas blocking block 9 is inserted in place, the connection between the valve body 1 and the gas meter connecting pipe 13 can be disconnected. Press the extension pressing plate 6, the elastic struts 2 drive the collar 5, and the new collar 5 is clamped to complete the replacement.

[0034] In some embodiments, according to Figures 1-5As shown, a limit ring 10 is fixedly arranged on the gas plug 9, and a handle 11 is fixedly arranged at the top of the threaded column 8. The limit ring 10 is provided to prevent the gas plug 9 from passing through the limit through hole 19, and the handle 11 is provided to facilitate the rotation of the threaded column 8. The gas filter net 4 is made of nylon material, and the gas plug 9 is made of nitrile rubber material. The nylon gas filter net 4 can effectively filter impurities in the gas and has a relatively low cost. The rubber gas plug 9 has good elasticity and flexibility and can closely fit the sealing part. A gas delivery pipe 12 is arranged on one side of the valve body 1, and a gas meter connecting pipe 13 is fixedly arranged on the side of the valve body 1 far from the gas delivery pipe 12. The gas delivery pipe 12 can be used to deliver gas, and the gas meter connecting pipe 13 is provided to connect the gas meter. Rubber clamping blocks 14 are fixedly arranged on both sides of the valve body 1, and clamping grooves 15 are formed in both the gas delivery pipe 12 and the gas meter connecting pipe 13. The rubber clamping blocks 14 on the valve body 1 can be clamped with the clamping grooves 15 on the gas delivery pipe 12 and the gas meter connecting pipe 13. First flange plates 16 are fixedly arranged on both the gas delivery pipe 12 and the gas meter connecting pipe 13, and two second flange plates 17 are fixedly arranged on the valve body 1. The gas delivery pipe 12 and the gas meter connecting pipe 13 can be connected to the valve body 1 through the first flange plates 16 and the second flange plates 17. A baffle 18 is fixedly arranged in the valve body 1, and a limit through hole 19 is formed through the baffle 18. The baffle 18 is provided to block the passage of gas, and the limit through hole 19 is provided to prevent the elastic support column 2 from pushing the limit installation block 3 out of the limit through hole 19.

[0035] Working principle of the utility model: When replacing the gas filter net 4, only need to rotate the handle 11, then the threaded column 8 can cooperate with the installation column 7. Subsequently, the gas plug 9 will be inserted downward into the limit through hole 19. At the same time, the gas plug 9 will squeeze the limit installation block 3. At this time, the elastic support column 2 can drive the gas filter net 4 in the limit installation block 3 to withdraw from the limit through hole 19. When the gas plug 9 is inserted into the limit through hole 19, the connection between the valve body 1 and the gas meter connecting pipe 13 can be disconnected. Then press the extension pressing plate 6, and the elastic support column 2 can drive the collar 5 downward. Then, connect a new collar 5 to complete the replacement of the gas filter net 4. Through this setting, the gas delivery can be effectively disconnected while replacing the gas filter net 4, and the replacement of the gas filter net 4 is facilitated. The gas delivery pipe 12 and the gas meter connecting pipe 13 can be connected to the valve body 1 through the first flange plates 16 and the second flange plates 17. When they are connected, the rubber clamping blocks 14 on the valve body 1 can be clamped with the clamping grooves 15 on the gas delivery pipe 12 and the gas meter connecting pipe 13. Through the setting of the rubber clamping blocks 14, the sealing performance of the connection can be increased, and the situation of gas leakage from the connection is effectively prevented.

Claims

1. A gas pipeline valve with good sealing performance, comprising a valve body (1), characterized in that: An easily detachable leak-proof filter mechanism is provided inside the valve body (1). The easily detachable leak-proof filter mechanism includes four elastic struts (2) fixedly arranged at the inner bottom of the valve body (1). A limit mounting block (3) is snap-fitted at the top of the four elastic struts (2). A gas filter screen (4) is fixedly arranged inside the limit mounting block (3). A collar (5) is fixedly arranged on the four elastic struts (2). An extension pressing plate (6) is fixedly arranged on the collar (5). An installation column (7) is fixedly arranged at the top of the valve body (1). A threaded column (8) is threadedly connected inside the installation column (7). A gas blocking block (9) is fixedly arranged at the bottom of the threaded column (8).

2. The gas pipeline valve with good sealing performance according to claim 1, wherein: A limit ring (10) is fixedly arranged on the gas blocking block (9). A handle (11) is fixedly arranged at the top of the threaded column (8).

3. The gas pipeline valve with good sealing performance according to claim 1, characterized in that: The gas filter screen (4) is made of nylon material, and the gas blocking block (9) is made of nitrile rubber material.

4. The gas pipeline valve with good sealing performance according to claim 1, characterized in that: A gas delivery pipe (12) is arranged on one side of the valve body (1). A gas meter connection pipe (13) is fixedly arranged on the side of the valve body (1) away from the gas delivery pipe (12).

5. The gas pipeline valve with good sealing performance according to claim 4, characterized in that: Rubber clamping blocks (14) are fixedly arranged on both sides of the valve body (1). Card slots (15) are formed inside both the gas delivery pipe (12) and the gas meter connection pipe (13).

6. The gas pipeline valve with good sealing performance according to claim 4, characterized in that: First flange plates (16) are fixedly arranged on both the gas delivery pipe (12) and the gas meter connection pipe (13). Two second flange plates (17) are fixedly arranged on the valve body (1).

7. The gas pipeline valve with good sealing performance according to claim 1, characterized in that: A baffle plate (18) is fixedly arranged inside the valve body (1). A limit through hole (19) is formed through the baffle plate (18).

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