Gas transportation pressure valve

Abstract

The utility model provides a gas transportation pressure valve, which relates to the technical field of pressure valves, and comprises a pipe body, one end of the pipe body is provided with a pressure relief device, the pressure relief device comprises a circular ring, one end of the circular ring is fixedly connected with one end of the pipe body, the inside of the circular ring is communicated with the inside of the pipe body, and the other end of the circular ring is fixedly connected with the pipe body. A pressure relief groove is formed in one side of the circular ring, a piston block is slidably connected to the inner wall of the circular ring, a rubber strip is fixedly connected to one side of the piston block, a plurality of L-shaped blocks are fixedly connected to one end of the piston block, a plurality of groove rods are fixedly connected to the outer surface of the circular ring, and springs are arranged in the groove rods. Two ends of the spring are fixedly connected with one side of the inner wall of the groove rod and one side of the L-shaped block respectively, the spring of the pressure relief device is located in the groove rod, and the piston block is located in the circular ring when the pressure valve does not work, so that the spring and the circular block of the pressure valve cannot be affected by impurities entering the spring and the circular block. The practicability of the pressure valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure valves, in particular to a gas transportation pressure valve. Background Art

[0002] When transporting gas from one container to another or filling gas into a container such as a tank, it is necessary to install a safety valve with a simple structure and automatic pressure relief on the gas delivery pipeline to ensure that when the pressure inside the gas pipeline is too high, the pressure inside the pipeline can be automatically relieved through the pressure valve to reduce the pressure and avoid pipeline rupture.

[0003] A traditional pressure valve usually consists of a tube body and an internal spring sliding piston. A pressure relief port is opened on the outside of the tube body. When pressure relief occurs, the piston will move to open the tube body port and compress the spring so that air can be relieved through the pressure relief port. However, since the pressure relief port is exposed on one side of the tube body, during daily use, foreign objects such as stones and small flies may enter the tube body through the pressure relief port and get stuck in the moving part of the spring and slider, causing the slider and spring to be unable to move normally and affecting the normal use of the pressure valve. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that due to the pressure relief port being exposed on one side of the pipe body, foreign objects such as stones, small flies, etc. may enter the interior of the pipe body through the pressure relief port during daily use, and get stuck in the moving part of the spring and the slider, causing the slider and spring to be unable to move normally and affecting the normal use of the pressure valve. A gas transportation pressure valve is proposed.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a gas transport pressure valve, comprising a tube body, a pressure relief device being provided at one end of the tube body, the pressure relief device comprising a circular ring, one end of the circular ring being fixedly connected to one end of the tube body, the interior of the circular ring being communicated with the interior of the tube body, a pressure relief groove being provided on one side of the circular ring, a piston block being slidably connected to the inner wall of the circular ring, a rubber strip being fixedly connected to one side of the piston block, a plurality of L-shaped blocks being fixedly connected to one end of the piston block, a plurality of groove rods being fixedly connected to the outer surface of the circular ring, a spring being provided inside the groove rod, and two ends of the spring being fixedly connected to one side of the inner wall of the groove rod and one side of the L-shaped block, respectively.

[0006] The effect achieved by the above components is: by setting a piston block, when using the pressure valve, an external pipe is connected to the gas transportation pipe and connected to one side of the inner wall of the pipe body. When the pressure inside the pipe is too high, the piston block will be pushed to slide outward on the inner wall of the ring to open the pressure relief groove, and the spring inside the slot rod will be lengthened by the L-shaped block. After the pressure decreases, the spring inside the slot rod will return to its original shape and pull the piston block to slide inside the ring to close the pressure relief groove. By setting the spring to be inside the slot rod and the piston block to be inside the ring when the pressure valve is not working, the spring and the round block of the pressure valve will not be affected by the entry of debris, thereby improving the practicality of the pressure valve.

[0007] Preferably, the inner wall of the slot rod is fixedly connected to a round rod, and one side of the inner wall of the L-shaped block slides on the outer surface of the round rod.

[0008] The effect achieved by the above components is that when the piston block moves, the L-shaped block will slide on the outer surface of the round rod, further limiting the angle between the piston block and the L-shaped block and the circular ring, thereby avoiding shaking of the piston block as much as possible.

[0009] Preferably, the round rod is located inside the spring, and the outer diameter of the round rod is slightly smaller than the inner diameter of the spring.

[0010] The effect achieved by the above components is that by arranging the round rod inside the spring, the internal shape of the spring can be reinforced, thereby preventing the spring from being deformed laterally when being pulled, thereby affecting the normal use of the spring.

[0011] Preferably, one side of the L-shaped block is fixedly connected to an L-shaped rod, and the inner wall of the L-shaped rod slides on the outer surface of the round rod.

[0012] The effect achieved by the above components is: by setting the L-shaped rod, the angles of the L-shaped block close to the piston block and the end away from the piston block can be reinforced, thereby avoiding as much as possible the different forces at the two ends of the L-shaped block when the piston block moves outward under pressure, causing the L-shaped block to break.

[0013] Preferably, one end of the round rod away from the slot rod is fixedly connected with a round block, and the diameter of the round block is larger than the diameter of the round rod.

[0014] The effect achieved by the above components is: by setting the round block, the movement range of the L-shaped block on the outer surface of the round rod can be limited to avoid as much as possible the L-shaped block from detaching from the surface of the round rod when the piston block moves outward, and being unable to return to the surface of the round rod normally after the spring returns to its original state.

[0015] Preferably, a reinforcement ring is fixedly connected to one side of the piston block close to the L-shaped block, and an outer surface of the reinforcement ring is fixedly connected to one side of the L-shaped block.

[0016] The effect achieved by the above components is that the connection between each L-shaped block and one side of the piston block can be further reinforced by providing a reinforcement ring, thereby improving the stability of the pressure relief device structure.

[0017] Preferably, a sealing device is provided on one side of the tube body, and the sealing device comprises a collar, the inner wall size and shape of the collar are adapted to the outer surface size and shape of the tube body, and a rubber ring is fixedly connected to one side of the collar.

[0018] The effect achieved by the above components is: when connecting the tube body to the gas delivery pipeline, the ring can be put on one end of the tube body first, and the connection between the tube body and the gas delivery pipeline can be further sealed by the rubber ring to improve the sealing effect.

[0019] Preferably, the outer surface of the collar is provided with two grooves, and the two grooves are respectively located on two sides of the collar.

[0020] The effect achieved by the above components is that the collar can be more conveniently grasped by holding the two grooves on the outer surface of the collar to put the collar on the outer surface of the pipe body or remove the collar from the outer surface of the pipe body.

[0021] Compared with the prior art, the advantages and positive effects of the present invention are:

[0022] In the utility model, the spring of the pressure relief device is located inside the groove rod and the piston block is located inside the ring when the pressure valve is not working, so that the spring and the piston block of the pressure valve will not be affected by the entry of foreign matter, thereby improving the practicality of the pressure valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of a partial cross-sectional three-dimensional structure of the pipe body of the utility model;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the circular ring of the utility model;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the collar of the utility model.

[0027] Legend: 1. Tube body; 2. Pressure relief device; 3. Sealing device; 21. Round ring; 22. Grooved rod; 23. Spring; 24. L-shaped block; 25. Piston block; 26. Rubber strip; 27. Round rod; 28. Round block; 29. ​​L-shaped rod; 210. Reinforcement ring; 211. Pressure relief groove; 31. Ring; 32. Rubber ring; 33. Groove. DETAILED DESCRIPTION

[0028] Example 1, as Figure 1-3 As shown, a gas transport pressure valve includes a tube body 1, one end of the tube body 1 is provided with a pressure relief device 2, the pressure relief device 2 includes a ring 21, one end of the ring 21 is fixedly connected to one end of the tube body 1, the interior of the ring 21 is connected to the interior of the tube body 1, a pressure relief groove 211 is provided on one side of the ring 21, the inner wall of the ring 21 is slidably connected to a piston block 25, one side of the piston block 25 is fixedly connected to a rubber strip 26, one end of the piston block 25 is fixedly connected to a plurality of L-shaped blocks 24, the outer surface of the ring 21 is fixedly connected to a plurality of groove rods 22, the interior of the groove rod 22 is provided with a spring 23, the two ends of the spring 23 are respectively fixedly connected to one side of the inner wall of the groove rod 22 and one side of the L-shaped block 24, and by setting a movable The piston block 25, when using the pressure valve, is connected to an external pipe on the gas transport pipe and to one side of the inner wall of the tube body 1. When the pressure inside the pipe is too high, the piston block 25 will be pushed to slide outward on the inner wall of the ring 21 to open the pressure relief groove 211, and the spring 23 inside the slot rod 22 will be stretched through the L-shaped block 24. After the pressure decreases, the spring 23 inside the slot rod 22 will return to its original shape and pull the piston block 25 to slide inside the ring 21 to close the pressure relief groove 211. By setting the spring 23 to be located inside the slot rod 22 and the piston block 25 to be located inside the ring 21 when the pressure valve is not working, the spring 23 and the round block 28 of the pressure valve will not be affected by the entry of debris, thereby improving the practicality of the pressure valve.

[0029] Reference Figure 1-3 As shown, in this embodiment: the inner wall of the groove rod 22 is fixedly connected with a round rod 27, and one side of the inner wall of the L-shaped block 24 slides on the outer surface of the round rod 27. When the piston block 25 moves, the L-shaped block 24 will slide on the outer surface of the round rod 27, further limiting the angle between the piston block 25 and the L-shaped block 24 and the ring 21, and avoiding shaking when the piston block 25 moves as much as possible. The round rod 27 is located inside the spring 23, and the outer diameter of the round rod 27 is slightly smaller than the inner diameter of the spring 23. By arranging the round rod 27 inside the spring 23, the internal shape of the spring 23 can be reinforced, and the lateral deformation of the spring 23 when being pulled can be avoided as much as possible, which affects the normal use of the spring 23.

[0030] Reference Figure 1-3As shown, in this embodiment: one side of the L-shaped block 24 is fixedly connected to an L-shaped rod 29, and the inner wall of the L-shaped rod 29 slides on the outer surface of the round rod 27. By providing the L-shaped rod 29, the angles of the L-shaped block 24 close to the piston block 25 and the end away from the piston block 25 can be reinforced, and the L-shaped block 24 can be prevented from breaking due to different forces at both ends of the L-shaped block 24 when the piston block 25 moves outward under pressure. The end of the round rod 27 away from the groove rod 22 is fixedly connected to a round block 28, and the diameter of the round block 28 is larger than the diameter of the round rod 27. By providing The arrangement of the round block 28 can limit the movement range of the L-shaped block 24 on the outer surface of the round rod 27 to prevent the L-shaped block 24 from separating from the surface of the round rod 27 when the piston block 25 moves outward, and cannot return to the surface of the round rod 27 normally after the spring 23 returns to its original state. A reinforcement ring 210 is fixedly connected to the side of the piston block 25 close to the L-shaped block 24, and the outer surface of the reinforcement ring 210 is fixedly connected to one side of the L-shaped block 24. By providing the reinforcement ring 210, the connection between each L-shaped block 24 and one side of the piston block 25 can be further reinforced, thereby improving the stability of the structure of the pressure relief device 2.

[0031] Reference Figure 1-4 As shown, in this embodiment: a sealing device 3 is provided on one side of the tube body 1, and the sealing device 3 includes a ring 31. The size and shape of the inner wall of the ring 31 are adapted to the size and shape of the outer surface of the tube body 1. A rubber ring 32 is fixedly connected to one side of the ring 31. When connecting the tube body 1 to the gas delivery pipeline, the ring 31 can be first put on one end of the tube body 1, and the connection between the tube body 1 and the gas delivery pipeline is further sealed by the rubber ring 32 to improve the sealing effect. Two grooves 33 are provided on the outer surface of the ring 31, and the two grooves 33 are respectively located on both sides of the ring 31. Holding the two grooves 33 on the outer surface of the ring 31 can make it more convenient to grasp the ring 31 and put the ring 31 on the outer surface of the tube body 1 or remove it from the outer surface of the tube body 1.

[0032] Working principle: When installing the pressure valve, an external pipe is connected to the gas transport pipe, and then the ring 31 can be put on the outside of one end of the pipe body 1, and the external pipe is threadedly connected to one side of the inner wall of the pipe body 1, so that the rubber ring 32 is located on the outside of the connection between the external pipe and the pipe body 1. When the pressure inside the pipe is too high, the piston block 25 will be pushed to slide outward on the inner wall of the ring 21 to open the pressure relief groove 211 for pressure relief. When the piston block 25 moves, it will drive the L-shaped block 24 to slide on the outer surface of the round rod 27 to stretch the spring 23 inside the slot rod 22. After the pressure inside the pipe body 1 becomes smaller, the spring 23 inside the slot rod 22 will return to its original shape and pull the L-shaped block 24 to drive the piston block 25 to slide toward the inside of the ring 21 to close the pressure relief groove 211.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment based on the technical essence of the present invention that does not deviate from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A gas transport pressure valve, comprising a pipe body (1), characterized in that: A pressure relief device (2) is provided at one end of the tube body (1), and the pressure relief device (2) comprises a circular ring (21), one end of the circular ring (21) is fixedly connected to one end of the tube body (1), the interior of the circular ring (21) is connected to the interior of the tube body (1), a pressure relief groove (211) is provided on one side of the circular ring (21), a piston block (25) is slidably connected to the inner wall of the circular ring (21), a rubber strip (26) is fixedly connected to one side of the piston block (25), one end of the piston block (25) is fixedly connected to a plurality of L-shaped blocks (24), the outer surface of the circular ring (21) is fixedly connected to a plurality of slot rods (22), a spring (23) is provided inside the slot rod (22), and two ends of the spring (23) are respectively fixedly connected to one side of the inner wall of the slot rod (22) and one side of the L-shaped block (24).

2. A gas transport pressure valve according to claim 1, characterized in that: The inner wall of the groove rod (22) is fixedly connected to a round rod (27), and one side of the inner wall of the L-shaped block (24) slides on the outer surface of the round rod (27).

3. A gas transport pressure valve according to claim 2, characterized in that: The round rod (27) is located inside the spring (23), and the outer diameter of the round rod (27) is slightly smaller than the inner diameter of the spring (23).

4. A gas transport pressure valve according to claim 3, characterized in that: An L-shaped rod (29) is fixedly connected to one side of the L-shaped block (24), and the inner wall of the L-shaped rod (29) slides on the outer surface of the round rod (27).

5. A gas transport pressure valve according to claim 4, characterized in that: One end of the round rod (27) away from the slot rod (22) is fixedly connected with a round block (28), and the diameter of the round block (28) is larger than the diameter of the round rod (27).

6. A gas transport pressure valve according to claim 5, characterized in that: A reinforcement ring (210) is fixedly connected to one side of the piston block (25) close to the L-shaped block (24), and an outer surface of the reinforcement ring (210) is fixedly connected to one side of the L-shaped block (24).

7. A gas transport pressure valve according to claim 6, characterized in that: A sealing device (3) is provided on one side of the tube body (1), and the sealing device (3) comprises a collar (31). The size and shape of the inner wall of the collar (31) are adapted to the size and shape of the outer surface of the tube body (1). A rubber ring (32) is fixedly connected to one side of the collar (31).

8. A gas transport pressure valve according to claim 7, characterized in that: Two grooves (33) are formed on the outer surface of the collar (31), and the two grooves (33) are respectively located on two sides of the collar (31).

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