High pressure gas seal control valve

Abstract

The utility model provides a kind of high-pressure gas sealing control valve, including control valve, the control valve is equipped with air inlet, air outlet and measurement interface, the measurement interface is equipped with lug plate, one end of the lug plate is connected and fixed with positioning plate, the both sides of the lug plate are equipped with the positioning nut of measurement interface screw connection, pressure gauge is screw-connected in the measurement interface, the pipe joint part of the pressure gauge is equipped with the ring of being connected with the fixed pressure gauge, the one side of the ring is equipped with two symmetrical arrangement arc grooves, the arc groove is inserted with the compression screw of the lug plate screw connection, the utility model has the beneficial effect as follows: without multiple disassembly pressure gauge to adjust the state after pressure gauge and control valve installation, improve assembly efficiency.

Description

Technical Field

[0001] This utility model is a high-pressure gas sealing control valve, belonging to the field of valves. Background Technology

[0002] The working principle of a high-pressure gas-tight control valve is to drive the valve core through an actuator, changing the flow cross-sectional area between the valve core and the valve seat, thereby controlling the flow and pressure of high-pressure gas. When the gas flow needs to be increased, the actuator drives the valve core upward, increasing the gap between the valve core and the valve seat, increasing the gas flow cross-sectional area, and thus increasing the flow rate; conversely, when the gas flow needs to be decreased, the valve core moves downward, decreasing the gap, and thus decreasing the flow rate. A pressure gauge is installed on the control valve to facilitate real-time monitoring of the gas pressure in the pipeline. It also allows for assessment of pipeline sealing based on pressure changes over a period of time. The most common connection method is a threaded connection between the pressure gauge and the measuring interface on the control valve. However, during this threaded connection, the pressure gauge's connector needs to be tightly fitted to the measuring interface, which can lead to situations where the gauge's orientation is not suitable for observation. This necessitates multiple disassemblies and adjustments, affecting installation efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a high-pressure gas sealing control valve to solve the problems mentioned in the background section. This invention eliminates the need for repeated disassembly of the pressure gauge to adjust the state of the pressure gauge and control valve after installation, thus improving assembly efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure gas sealing control valve, comprising a control valve, an inlet port, an outlet port, and a measuring port. An ear plate is fitted onto the measuring port, and a positioning plate is fixedly connected to one end of the ear plate. Positioning nuts, threadedly connected to the measuring port, are provided on both sides of the ear plate. A pressure gauge is internally threaded onto the measuring port. A ring, fixedly connected to the pressure gauge, is fitted onto the pipe interface of the pressure gauge. Two symmetrically arranged arc-shaped grooves are formed on one side of the ring, and clamping screws, threadedly connected to the ear plate, are inserted into the arc-shaped grooves.

[0005] Furthermore, the ear plate has two through holes on the side facing the ring, and a positioning frame is provided on the side of the through holes away from the ring. The positioning frame is connected and fixed to the ear plate. A plug-in block is inserted in the positioning frame. A screw hole is provided on one side of the plug-in block. One end of the clamping screw passes through the arc-shaped groove and through the hole and is threaded into the screw hole.

[0006] Furthermore, the positioning frame has a rectangular cross-section, and the plug block has a rectangular cross-section.

[0007] Furthermore, the clamping screw is threaded with an anti-loosening nut, which is located on the side of the arc groove facing the ear plate and fits against the ring.

[0008] Furthermore, the ear plate and the positioning plate are integrally formed, and the ear plate and the positioning plate are arranged perpendicular to each other. The positioning plate has multiple evenly arranged fixing holes on one side.

[0009] Furthermore, a circular opening is provided on one side of the ear plate, and the measuring interface passes through the circular opening.

[0010] Furthermore, a first hexahedron is fitted onto the air intake port, and the first hexahedron and the air intake port are integrally formed. A second hexahedron is fitted onto the air outlet port, and the second hexahedron and the air outlet port are integrally formed.

[0011] The beneficial effects of this utility model are:

[0012] 1. Place the ear plate onto the measuring interface, and then use two positioning nuts to limit the relative position of the ear plate and the measuring interface. This completes the assembly of the structure formed by the ear plate and the positioning plate with the control valve. Use bolts to install the positioning plate at the required position to limit the position of the control valve.

[0013] 2. After connecting the pressure gauge to the measuring interface via threads, ensure the pressure gauge is oriented to meet observation requirements. Then, pass the clamping screw through the arc-shaped groove and connect it to the ear plate. Under the pressure of the clamping screw, the pressure gauge and measuring interface are stably connected. This avoids situations where the pressure gauge orientation does not meet the observation angle requirements due to a tight connection between the pressure gauge and the measuring interface. It eliminates the need to repeatedly disassemble the pressure gauge to adjust its position after installation with the control valve, thus improving assembly efficiency.

[0014] 3. Insert the plug block with the machined screw hole into the positioning frame to assemble the plug block and the ear plate. Connect one end of the clamping screw to the screw hole to complete the connection between the clamping screw and the ear plate. There is no need to increase the thickness of the ear plate. When the screw hole is damaged, the plug block can be replaced separately.

[0015] 4. This ensures a tight fit between the lock nut and the ring, reducing the probability of relative slippage between the clamping screw and the ring. At the same time, the clamping screw and lock nut together provide support for the ring and ear plate, improving the stability of the structure. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a high-pressure gas sealing control valve according to the present invention;

[0018] Figure 2 This is a perspective view of a high-pressure gas sealing control valve according to the present invention.

[0019] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 This is an assembly diagram of the plug block, positioning frame, ear plate and positioning plate in a high-pressure gas sealing control valve according to the present invention.

[0021] Figure 5 This is a schematic diagram of the assembly of the middle ear plate and the positioning plate of a high-pressure gas sealing control valve according to the present invention.

[0022] In the diagram: 1-Control valve, 2-Second hexahedron, 3-Outlet port, 4-Inlet port, 5-First hexahedron, 6-Positioning plate, 7-Fixing hole, 8-Ring, 9-Pressure gauge, 10-Measuring interface, 11-Positioning nut, 12-Ear plate, 13-Arc groove, 14-Clamping screw, 15-Anti-loosening nut, 16-Plug-in block, 17-Positioning frame, 18-Round opening, 19-Screw hole, 20-Through hole. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a high-pressure gas sealing control valve, including a control valve 1. The control valve 1 is equipped with an inlet port 4, an outlet port 3, and a measuring port 10. A first hexahedron 5 is fitted onto the inlet port 4, and the first hexahedron 5 and the inlet port 4 are integrally formed. A second hexahedron 2 is fitted onto the outlet port 3, and the second hexahedron 2 and the outlet port 3 are integrally formed. An ear plate 12 is fitted onto the measuring port 10, i.e., a circular opening 18 is opened on one side of the ear plate 12, through which the measuring port 10 passes. One end of the ear plate 12 is connected and fixed to a fixed... Positioning plate 6 and ear plate 12 are provided with positioning nuts 11 on both sides that are threaded to the measuring interface 10. The ear plate 12 and positioning plate 6 are integrally formed and arranged perpendicularly to each other. One side of positioning plate 6 has multiple evenly arranged fixing holes 7. The ear plate 12 is fitted onto the measuring interface 10, and then the two positioning nuts 11 are used to limit the relative position of the ear plate 12 and the measuring interface 10, thus completing the assembly of the structure formed by the ear plate 12 and positioning plate 6 with the control valve 1. The positioning plate 6 is installed at the required position using bolts to limit the position of the control valve 1.

[0025] See Figures 1-3 The measuring interface 10 is internally threaded with a pressure gauge 9. The pipe interface of the pressure gauge 9 is fitted with a ring 8 for connection and fixation. Two symmetrically arranged arc-shaped grooves 13 are opened on one side of the ring 8. A clamping screw 14, which is threaded to the ear plate 12, is inserted into the arc-shaped groove 13. After the pressure gauge 9 is threadedly connected to the measuring interface 10, the orientation of the pressure gauge 9 meets the observation requirements. Then, the clamping screw 14 passes through the arc-shaped groove 13 and connects to the ear plate 12. At this time, under the pressure of the clamping screw 14, the pressure gauge 9 is stably connected to the measuring interface 10. This avoids the situation where the orientation of the pressure gauge 9 does not meet the observation angle requirements due to the tight connection between the pressure gauge 9 and the measuring interface 10. It eliminates the need to repeatedly disassemble the pressure gauge 9 to adjust the state of the pressure gauge 9 and the control valve 1 after installation, thus improving assembly efficiency.

[0026] See Figures 1-5 Two through holes 20 are provided on the side of the ear plate 12 facing the ring 8. A positioning frame 17 with a rectangular cross-section is provided on the side of the through holes 20 away from the ring 8. The positioning frame 17 is connected and fixed to the ear plate 12. A plug-in block 16 with a rectangular cross-section is inserted into the positioning frame 17. A screw hole 19 is provided on one side of the plug-in block 16. One end of the clamping screw 14 passes through the arc groove 13 and the through hole 20 and is threaded into the screw hole 19. This allows the plug-in block 16 with the screw hole 19 to be inserted into the positioning frame 17, realizing the assembly of the plug-in block 16 and the ear plate 12. One end of the clamping screw 14 is threaded into the screw hole 19, completing the connection between the clamping screw 14 and the ear plate 12. There is no need to increase the thickness of the ear plate 12. When the screw hole 19 is damaged, the plug-in block 16 can be replaced separately.

[0027] See Figures 1-3 The clamping screw 14 is threaded with an anti-loosening nut 15. The anti-loosening nut 15 is located on the side of the arc groove 13 facing the ear plate 12, so that the anti-loosening nut 15 fits tightly with the ring 8, reducing the probability of relative slippage between the clamping screw 14 and the ring 8. At the same time, the clamping screw 14, the anti-loosening nut 15 and the like form a support for the ring 8 and the ear plate 12, improving the stability of the structure.

[0028] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-pressure gas-sealed control valve, comprising a control valve (1), characterized in that: The control valve (1) is equipped with an air inlet (4), an air outlet (3), and a measuring interface (10). The measuring interface (10) is fitted with an ear plate (12). One end of the ear plate (12) is connected to and fixed with a positioning plate (6). Both sides of the ear plate (12) are provided with positioning nuts (11) that are threadedly connected to the measuring interface (10). The measuring interface (10) is threadedly connected with a pressure gauge (9). The pipe interface of the pressure gauge (9) is fitted with a ring (8) that is connected and fixed to the pressure gauge (9). Two symmetrically arranged arc grooves (13) are opened on one side of the ring (8). A clamping screw (14) that is threadedly connected to the ear plate (12) is inserted in the arc groove (13).

2. The high-pressure gas sealing control valve according to claim 1, characterized in that: The ear plate (12) has two through holes (20) on the side facing the ring (8). The through holes (20) are provided with a positioning frame (17) on the side away from the ring (8). The positioning frame (17) is connected and fixed to the ear plate (12). A plug block (16) is inserted in the positioning frame (17). A screw hole (19) is provided on one side of the plug block (16). One end of the clamping screw (14) passes through the arc groove (13) and the through hole (20) and is threaded into the screw hole (19).

3. A high-pressure gas sealing control valve according to claim 2, characterized in that: The positioning frame (17) has a rectangular cross-section, and the plug block (16) has a rectangular cross-section.

4. A high-pressure gas sealing control valve according to claim 1, characterized in that: The clamping screw (14) is threaded with a locking nut (15), which is located on the side of the arc groove (13) facing the ear plate (12) and is in contact with the ring (8).

5. A high-pressure gas sealing control valve according to claim 1, characterized in that: The ear plate (12) and the positioning plate (6) are integrally formed. The ear plate (12) and the positioning plate (6) are arranged perpendicular to each other. The positioning plate (6) has a plurality of evenly arranged fixing holes (7) on one side.

6. A high-pressure gas sealing control valve according to claim 1, characterized in that: The ear plate (12) has a round opening (18) on one side, and the measuring interface (10) passes through the round opening (18).

7. A high-pressure gas sealing control valve according to claim 1, characterized in that: The air inlet (4) is fitted with a first hexahedron (5), and the first hexahedron (5) and the air inlet (4) are integrally formed. The air outlet (3) is fitted with a second hexahedron (2), and the second hexahedron (2) and the air outlet (3) are integrally formed.

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