High-pressure gas valve

Abstract

The utility model relates to the technical field of valves, in particular to a high-pressure gas valve which comprises a valve body, the two ends of the valve body are fixedly connected with connecting pipes respectively, the connecting pipes are sleeved with movable sleeves in a sliding mode, sealing pieces are arranged at the connecting positions of the connecting pipes and the movable sleeves, and positioning structures abutting against the movable sleeves are installed on the connecting pipes. A first connecting ring is fixedly connected to the side, away from the valve body, of the movable sleeve, a second connecting ring is arranged on the side, away from the movable sleeve, of the first connecting ring, a plurality of arc-shaped plates penetrate through the second connecting ring, the arc-shaped plates are fixedly connected with the first connecting ring, and a rotating ring is arranged on the side, away from the first connecting ring, of the second connecting ring. A pressure applying assembly for applying pressure to the rotating ring is mounted on the first connecting ring; bolts and nuts do not need to be disassembled one by one, a wrench does not need to be used for assisting disassembly, disassembly of the valve body can be conveniently and rapidly completed, and periodic inspection and maintenance of flange bolts are avoided.

Description

Technical Field

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

[0002] High-pressure gas valves generally include a valve body, which is equipped with a valve stem, a gas chamber, an inlet, and an outlet. The valve stem is connected to a valve plug for blocking the inlet.

[0003] However, it is worth considering that the two ends of the valve body are generally fixed to the corresponding pipes through flanges. When disassembling the valve, the bolts and nuts need to be loosened one by one, which makes the disassembly and assembly of the valve inconvenient, especially in a narrow space, where it is not easy to use a wrench to remove the bolts and nuts.

[0004] Therefore, in order to solve the above problems, a more suitable facility that meets the needs of users is needed. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a high-pressure gas valve to solve the problem that the valve disassembly and assembly is inconvenient because it requires loosening the bolts and nuts one by one.

[0006] To achieve the above objectives, this utility model provides a high-pressure gas valve, comprising a valve body, with connecting pipes fixedly connected to both ends of the valve body, a movable sleeve slidably fitted around the outside of the connecting pipes, a sealing element at the connection between the connecting pipes and the movable sleeve, and a positioning structure abutting against the movable sleeve installed on the connecting pipes; a first connecting ring is fixedly connected to the side of the movable sleeve away from the valve body, and a second connecting ring is provided on the side of the first connecting ring away from the movable sleeve, with several arc-shaped plates passing through the second connecting ring and the arc-shaped plates being fixedly connected to the first connecting ring; a rotating ring is provided on the side of the second connecting ring away from the first connecting ring, and a pressure-applying component for applying pressure to the rotating ring is installed on the first connecting ring.

[0007] Preferably, the pressure application component includes a plurality of sliders fixedly installed on the inner wall of the rotating ring, and the number of sliders and the number of arc plates are the same. The arc plates are provided with grooves that are adapted to the sliders, and the sliders are located in the corresponding grooves. The rotating ring is equipped with anti-rotation components that are adapted to the first connecting ring.

[0008] Preferably, the anti-rotation component includes a movable ring disposed on the side of the rotating ring away from the second connecting ring. A plurality of insert rods are fixedly connected to the side of the movable ring facing the rotating ring. A support portion is slidably sleeved on the outside of the insert rod. The support portion is fixedly connected to the outer wall of the rotating ring, and the support portion and the movable ring are connected by a tension spring. A plurality of insertion holes adapted to the insert rods are opened on the first connecting ring, and the end of the insert rod away from the movable ring is located in the corresponding insertion hole.

[0009] Preferably, the second connecting ring is fixedly connected to the side facing the first connecting ring with a first sealing ring, and the first sealing ring is in contact with the first connecting ring.

[0010] Preferably, the sealing element includes a first support ring fixedly installed on the inner wall of the movable sleeve, a second support ring fixedly sleeved on the outer wall of the connecting pipe, and the second support ring is located on the side of the first support ring away from the valve body. A second sealing ring is fixedly connected to the second support ring, and the second sealing ring is in contact with the first support ring.

[0011] Preferably, the positioning structure includes several fixed brackets fixedly installed on the outer wall of the connecting pipe. A baffle passes through the fixed bracket. An iron plate is fixedly connected to the side of the baffle away from the connecting pipe. The movable sleeve abuts against the baffle on the side facing the valve body. A magnet is fixedly connected to the fixed bracket and contacts the iron plate. A pull ring is fixedly connected to the iron plate.

[0012] The beneficial effects of this utility model are as follows: Before installing the valve body, the operator places the rotating ring on the outside of the pipe to be connected, and then welds the second connecting ring to the outside of the pipe. The two rotating rings are located on opposite sides of the two second connecting rings. When the valve body needs to be fixedly installed on the two pipes, the operator drives the movable sleeve to move relative to the connecting pipe, so that the first connecting ring drives the arc plate through the corresponding second connecting ring. Pressure is applied to the rotating ring by the pressure-applying component, so that the second connecting ring is clamped and fixed between the first connecting ring and the rotating ring. The connection between the connecting pipe and the movable sleeve is secured by the sealing element. The joint is sealed, and the position of the connecting pipe and valve body is positioned by the positioning structure to prevent the connecting pipe and valve body from swaying horizontally relative to the movable sleeve. When the valve body needs to be removed, the pressure application component no longer applies pressure to the rotating ring, and the positioning structure releases the positioning of the valve body and connecting pipe. The operator drives the first connecting ring and the movable sleeve to move relative to the connecting pipe, and the arc plate disengages from the second connecting ring, thus completing the removal of the valve body. There is no need to remove and install bolts and nuts one by one, nor is there a need to use a wrench to assist in disassembly and assembly, which facilitates the quick disassembly and assembly of the valve body and eliminates the need for periodic inspection and maintenance of flange bolts. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the connecting pipe and movable sleeve according to an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the rotating ring structure according to an embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of the second connecting ring in an embodiment of the present invention;

[0018] Figure 5 This is a structural schematic diagram of the fixing frame according to an embodiment of the present utility model.

[0019] The diagram is marked as follows:

[0020] 1. Valve body; 2. Connecting pipe; 3. Movable sleeve; 4. First connecting ring; 5. Second connecting ring; 6. Arc plate; 7. Rotating ring; 8. Sliding block; 9. Slide groove; 10. Movable ring; 11. Insert rod; 12. Tension spring; 13. Support part; 14. First sealing ring; 15. First support ring; 16. Second support ring; 17. Second sealing ring; 18. Fixing frame; 19. Iron plate; 20. Baffle; 21. Magnet block; 22. Pull ring; 23. Insertion hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] This specification provides one or more embodiments of a high-pressure gas valve, such as... Figure 1 and Figure 2As shown, the valve body 1 is included. Connecting pipes 2 are fixedly connected to both ends of the valve body 1. A movable sleeve 3 is slidably sleeved on the outside of the connecting pipe 2. A sealing element is provided at the connection between the connecting pipe 2 and the movable sleeve 3. A positioning structure that abuts against the movable sleeve 3 is installed on the connecting pipe 2.

[0024] A first connecting ring 4 is fixedly connected to the side of the movable sleeve 3 away from the valve body 1. A second connecting ring 5 is provided on the side of the first connecting ring 4 away from the movable sleeve 3. Several arc-shaped plates 6 pass through the second connecting ring 5, and the arc-shaped plates 6 are fixedly connected to the first connecting ring 4. A rotating ring 7 is provided on the side of the second connecting ring 5 away from the first connecting ring 4. A pressure-applying component for applying pressure to the rotating ring 7 is installed on the first connecting ring 4. Before installing the valve body 1, the operator puts the rotating ring 7 on the outside of the pipe to be connected, and then the operator fixes and welds the second connecting ring 5 to the outside of the pipe to be connected. The two rotating rings 7 are located on the sides of the two second connecting rings 5 ​​that are far apart. When it is necessary to fix the valve body 1 on the two pipes, the operator drives the movable sleeve 3 to move relative to the connecting pipe 2, so that the first connecting ring 4 drives the arc-shaped plates 6 to pass through the corresponding second connecting rings 5. Pressure is applied to the rotating ring 7 by the pressure-applying component, so that the second connecting ring 5 is clamped and fixed between the first connecting ring 4 and the rotating ring 7. The connection between the connecting pipe 2 and the movable sleeve 3 is sealed by the sealing element. The position of the connecting pipe 2 and the valve body 1 is positioned by the positioning structure to prevent the connecting pipe 2 and the valve body 1 from swaying horizontally relative to the movable sleeve 3. When the valve body 1 needs to be removed, the pressure-applying component no longer applies pressure to the rotating ring 7, and the positioning structure releases the positioning of the valve body 1 and the connecting pipe 2. The operator drives the first connecting ring 4 and the movable sleeve 3 to move relative to the connecting pipe 2, and the arc plate 6 disengages from the second connecting ring 5, thus completing the removal of the valve body 1. It is not necessary to remove and install bolts and nuts one by one, nor is it necessary to use a wrench to assist in the disassembly and assembly. It is convenient to quickly complete the disassembly and assembly of the valve body 1 and eliminate the need for periodic inspection and maintenance of flange bolts.

[0025] In embodiments of this utility model, such as Figure 2 , Figure 3 and Figure 4As shown, the pressure-applying assembly includes several sliders 8 fixedly installed on the inner wall of the rotating ring 7, and the number of sliders 8 and the number of arc plates 6 are the same. The arc plates 6 have grooves 9 that are adapted to the sliders 8, and the sliders 8 are located in the corresponding grooves 9. An anti-rotation component adapted to the first connecting ring 4 is installed on the rotating ring 7. The anti-rotation component includes a movable ring 10 located on the side of the rotating ring 7 away from the second connecting ring 5. Several insert rods 11 are fixedly connected to the side of the movable ring 10 facing the rotating ring 7. A support portion 13 is slidably sleeved on the outside of the insert rods 11. The support portion 13 is fixedly connected to the outer wall of the rotating ring 7, and the support portion 13 and the movable ring 11 are slidably sleeved on the outside of the insert rods 11. The moving ring 10 is connected by a tension spring 12. The first connecting ring 4 has several insertion holes 23 that match the insertion rod 11, with the end of the insertion rod 11 furthest from the moving ring 10 located in the corresponding insertion hole 23. A first sealing ring 14 is fixedly connected to the side of the second connecting ring 5 facing the first connecting ring 4, and the first sealing ring 14 is in contact with the first connecting ring 4. Before installing the valve body 1, the operator places the rotating ring 7 on the outside of the pipe to be connected, and then welds the second connecting ring 5 to the outside of the pipe, with the two rotating rings 7 located on the sides of the two second connecting rings 5 ​​furthest from each other. When valve body 1 is installed, the operator drives the movable sleeve 3 to slide relative to the connecting pipe 2, so that the first connecting ring 4 drives the second connecting ring 5 to pass through the corresponding second connecting ring 5. The operator drives the rotating ring 7 to rotate, so that the slider 8 slides into the corresponding groove 9. As the rotating ring 7 continues to rotate, the distance between the rotating ring 7 and the first connecting ring 4 decreases, and the operator drives the movable ring 10 to move away from the rotating ring 7. The insertion rod 11 slides relative to the support part 13, and the tension spring 12 is in a stretched state to prevent the end of the insertion rod 11 from inserting into the insertion hole 23. The second connecting ring 5 is finally clamped in the rotating ring 10. Between ring 7 and the first connecting ring 4, the first sealing ring 14 and the first connecting ring 4 are tightly attached. The design of the first sealing ring 14 increases the sealing at the connection between the first connecting ring 4 and the second connecting ring 5. Then, the operator drives the movable ring 10 to move horizontally. The movable ring 10 drives the insertion rod 11 to move in the opposite direction. The tension spring 12 returns to its initial length so that the end of the insertion rod 11 is inserted into the corresponding insertion hole 23. This prevents the rotating ring 7 from rotating in the opposite direction relative to the arc plate 6 and the first connecting ring 4. The slider 8 will not slide relative to the slide groove 9, ensuring that the second connecting ring 5 is always clamped between the rotating ring 7 and the first connecting ring 4.

[0026] In embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 5As shown, the sealing element includes a first support ring 15 fixedly installed on the inner wall of the movable sleeve 3, and a second support ring 16 fixedly sleeved on the outer wall of the connecting pipe 2. The second support ring 16 is located on the side of the first support ring 15 away from the valve body 1. A second sealing ring 17 is fixedly connected to the second support ring 16, and the second sealing ring 17 is in contact with the first support ring 15. The positioning structure includes several fixed brackets 18 fixedly installed on the outer wall of the connecting pipe 2. A baffle 20 passes through the fixed bracket 18. An iron plate 19 is fixedly connected to the side of the baffle 20 away from the connecting pipe 2, and the side of the movable sleeve 3 facing the valve body 1 abuts against the baffle 20. A magnet 21 is fixedly connected to the fixed bracket 18, and the magnet 21 is in contact with the iron plate 19. A pull ring 22 is fixedly connected to the iron plate 19. When the movable sleeve 3 moves relative to the connecting pipe 2... The movable sleeve 3 drives the first support ring 15 to move toward the second support ring 16. When the second connecting ring 5 is clamped between the first connecting ring 4 and the rotating ring 7, the second sealing ring 17 is clamped between the second support ring 16 and the first support ring 15. Through the design of the first support ring 15, the second support ring 16 and the second sealing ring 17, the connection between the connecting pipe 2 and the movable sleeve 3 is sealed. The operator drives the iron plate 19 to move so that the baffle 20 passes through the fixed frame 18. The iron plate 19 and the magnet block 21 are magnetically attracted to each other so that the iron plate 19 is fixed relative to the fixed frame 18 and the connecting pipe 2. At this time, the baffle 20 abuts against the side of the movable sleeve 3 facing the valve body 1. By limiting the position of the connecting pipe 2 and the valve body 1 through several baffles 20, the horizontal movement of the connecting pipe 2 and the valve body 1 relative to the movable sleeve 3 is prevented.

[0027] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0028] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-pressure gas valve, comprising a valve body (1), characterized in that, The valve body (1) is fixedly connected to two ends of a connecting pipe (2). A movable sleeve (3) is slidably fitted on the outside of the connecting pipe (2). A sealing element is provided at the connection between the connecting pipe (2) and the movable sleeve (3). A positioning structure that abuts against the movable sleeve (3) is installed on the connecting pipe (2). A first connecting ring (4) is fixedly connected to the side of the movable sleeve (3) away from the valve body (1). A second connecting ring (5) is provided on the side of the first connecting ring (4) away from the movable sleeve (3). Several arc plates (6) pass through the second connecting ring (5), and the arc plates (6) and the first connecting ring (4) are fixedly connected. A rotating ring (7) is provided on the side of the second connecting ring (5) away from the first connecting ring (4). A pressure-applying component that applies pressure to the rotating ring (7) is installed on the first connecting ring (4).

2. The high-pressure gas valve according to claim 1, characterized in that, The pressure application component includes several sliders (8) fixedly installed on the inner wall of the rotating ring (7), and the number of sliders (8) and the number of arc plates (6) are the same. The arc plates (6) are provided with grooves (9) that are adapted to the sliders (8). The sliders (8) are located in the corresponding grooves (9). The rotating ring (7) is equipped with anti-rotation components that are adapted to the first connecting ring (4).

3. The high-pressure gas valve according to claim 2, characterized in that, The anti-rotation component includes a movable ring (10) disposed on the side of the rotating ring (7) away from the second connecting ring (5). A plurality of insert rods (11) are fixedly connected to the side of the movable ring (10) facing the rotating ring (7). A support part (13) is slidably sleeved on the outside of the insert rod (11). The support part (13) is fixedly connected to the outer wall of the rotating ring (7). The support part (13) and the movable ring (10) are connected by a tension spring (12). A plurality of insertion holes (23) adapted to the insert rods (11) are opened on the first connecting ring (4). The end of the insert rod (11) away from the movable ring (10) is located in the corresponding insertion hole (23).

4. The high-pressure gas valve according to claim 1, characterized in that, The second connecting ring (5) is fixedly connected to the first sealing ring (14) on the side facing the first connecting ring (4), and the first sealing ring (14) and the first connecting ring (4) are in contact.

5. The high-pressure gas valve according to claim 1, characterized in that, The sealing element includes a first support ring (15) fixedly installed on the inner wall of the movable sleeve (3), a second support ring (16) fixedly sleeved on the outer wall of the connecting pipe (2), and the second support ring (16) is located on the side of the first support ring (15) away from the valve body (1). A second sealing ring (17) is fixedly connected to the second support ring (16), and the second sealing ring (17) and the first support ring (15) are in contact.

6. The high-pressure gas valve according to claim 1, characterized in that, The positioning structure includes several fixed brackets (18) fixedly installed on the outer wall of the connecting pipe (2). A baffle (20) passes through the fixed bracket (18). An iron plate (19) is fixedly connected to the side of the baffle (20) away from the connecting pipe (2). The movable sleeve (3) abuts against the baffle (20) on the side facing the valve body (1). A magnet (21) is fixedly connected to the fixed bracket (18). The magnet (21) is in contact with the iron plate (19). A pull ring (22) is fixedly connected to the iron plate (19).

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