Gas pressure reducer detection device

Abstract

The utility model relates to the technical field of gas pressure reducers, in particular to a gas pressure reducer detection device. The detection device comprises a base, a detection mechanism, a tensioning and positioning mechanism and a jacking mechanism, the detection mechanism comprises an air pipe, the air inlet end of the air pipe is connected with an air source, and the air outlet end of the air pipe is connected with the tensioning and positioning mechanism; the tensioning and positioning mechanism comprises a first tensioning and positioning assembly and a second tensioning and positioning assembly, the air inlet end of the first tensioning and positioning assembly is connected with the air outlet end of the air pipe, the air outlet end of the first tensioning and positioning assembly is connected with the air inlet end of the second tensioning and positioning assembly, and the air outlet end of the second tensioning and positioning assembly is connected with the air inlet end of the pressure reducer; the jacking mechanism comprises an arc-shaped piece and a jacking assembly, the arc-shaped piece is arranged on the first tensioning and positioning assembly in a horizontally adjustable mode, and the jacking assembly is arranged on the arc-shaped piece in a sliding mode. According to the ejecting mechanism, the angle-adjustable ejecting assembly is arranged, calibration of pressure reducers of different models can be met, application is flexible and convenient, and practicability is higher.

Description

Technical Field

[0001] This utility model relates to the field of gas pressure regulator technology, and in particular to a gas pressure regulator detection device. Background Technology

[0002] A pressure reducer is a device that reduces the pressure of high-pressure oxygen gas stored in an oxygen cylinder to the low-pressure oxygen required for gas welding. Because the pressure inside the cylinder is high, while the pressure required for gas welding, cutting, and the point of use is relatively low, a pressure reducer is needed to lower the pressure of the gas stored in the cylinder to a low pressure, ensuring that the required working pressure remains stable throughout. In short, a pressure reducer is a regulating device that reduces high-pressure gas to low-pressure gas and maintains a stable pressure and flow rate of the output gas. Gas pressure reducers require sealing tests and calibrations during factory testing and routine maintenance. Currently, this is usually done by personnel holding the pressure reducer by hand, but this method is not only extremely inconvenient when installing the inlet device, but also prone to connection instability during the filling process, and has low testing efficiency.

[0003] Currently, the applicant has learned from known prior art about Chinese Patent Application No. 202222517494.3, which discloses a calibration device for a gas pressure regulator. The device includes a gas pressure regulator with an inlet pipe and an outlet pipe placed on its left and right sides, respectively. The inlet and outlet pipes extend through and into the inlet and outlet ends of the gas pressure regulator. Connecting plates are fixedly fitted onto both the inlet and outlet pipes. Two support plates are vertically fixed to the opposite sides of each of the two connecting plates. These four support plates are located at the top and bottom of the inlet and outlet pipes, respectively. Two fixing plates are placed between the two connecting plates and the gas pressure regulator. This calibration device, through the close fit between the fixing plates and the gas pressure regulator, conveniently fixes the inlet and outlet pipes, minimizing damage to the original sealing state of the gas pressure regulator by directly fixing them to it, thus improving the performance and sealing of the gas pressure regulator. However, this calibration device is mainly applicable when the pressure reducer's inlet and outlet are on the same horizontal line. When the pressure reducer's inlet and outlet are at different angles, it cannot be adaptively adjusted and fixed, making its application inflexible. Therefore, how to perform positioning detection on special models of pressure reducers is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that existing pressure regulator calibration devices are only suitable for situations where the pressure regulator's inlet and outlet are on the same horizontal line, and cannot be adaptively adjusted according to different angles of the pressure regulator's inlet and outlet, thus lacking flexibility in application. This invention provides a gas pressure regulator testing device, equipped with a tensioning and positioning mechanism and a clamping mechanism. The tensioning and positioning mechanism can quickly and easily fix and limit the gas pressure regulator, while the clamping mechanism, through the cooperation of an arc-shaped plate and a sliding seat, allows the sliding seat to rotate to any angle along the arc-shaped plate. Simultaneously, the horizontal movement of the arc-shaped plate allows it to meet the calibration needs of different models of gas pressure regulators, making its application more flexible and convenient, and its practicality stronger.

[0005] The technical solution adopted by this utility model to achieve the above-mentioned objectives is: a gas pressure regulator detection device, comprising a base, a detection mechanism, a tensioning and positioning mechanism, and a tightening mechanism, wherein the detection mechanism and the tensioning and positioning mechanism are respectively disposed on the base.

[0006] The testing mechanism includes an air tube, a valve, and a standard gauge. The air inlet of the air tube is connected to an air source, and the air outlet of the air tube is connected to a tensioning and positioning mechanism. The valve and the standard gauge are connected to the air tube.

[0007] The tensioning and positioning mechanism includes a first tensioning and positioning component and a second tensioning and positioning component. The air inlet of the first tensioning and positioning component is connected to the air outlet of the air pipe, and the air outlet of the first tensioning and positioning component is connected to the air inlet of the second tensioning and positioning component. The second tensioning and positioning component is used to tension the gas pressure regulator and connect the air outlet of the second tensioning and positioning component to the air inlet of the gas pressure regulator.

[0008] The tightening mechanism includes an arc-shaped component and a tightening assembly for tightening and connecting the outlet of the gas pressure regulator. The arc-shaped component is horizontally adjustable and mounted on the first tensioning and positioning assembly. The tightening assembly is slidably mounted on the arc-shaped component. The tightening assembly is connected to the gas recovery device via a pressure hose.

[0009] Furthermore, the tensioning and positioning mechanism also includes a first gas connector and a second gas connector. The first gas connector is disposed on the base. The inlet end of the first gas connector is connected to a gas pipe. The outlet end of the first gas connector is connected to the inlet end of the first tensioning and positioning assembly. The outlet end of the first tensioning and positioning assembly is connected to the inlet end of the second gas connector. The outlet end of the second gas connector is connected to the inlet end of the second tensioning and positioning assembly. The outlet end of the second tensioning and positioning assembly is provided with a first gas quick-change connector that communicates with the inlet end of the gas pressure reducer.

[0010] Furthermore, the first tensioning and positioning assembly includes a first connecting seat, a first pull seat, and a first adjusting screw. The first connecting seat is disposed at the upper end of the first gas connector. The first connecting seat has an air passage communicating with the first gas connector and the second gas connector. The first pull seat has a U-shaped structure. One end of the first pull seat is threadedly connected to the first adjusting screw. The end of the first adjusting screw extends into the first pull seat and is rotatably connected to the first connecting seat. The first connecting seat is provided with a first positioning pin for tightening the first adjusting screw. The first connecting seat and the first pull seat are slidably engaged. One end of the opening of the first pull seat is provided with a first pull plate for tightening the second gas connector. The first pull plate has an arc-shaped groove. The second gas connector has an annular groove that mates with the arc-shaped groove of the first pull plate. The second gas connector has an L-shaped structure. The second gas connector has an air passage communicating with the first connecting seat and the second tensioning and positioning assembly.

[0011] Furthermore, the second tensioning and positioning assembly includes a second connecting seat, a second pull seat, and a second adjusting screw. The second connecting seat is located at the upper end of the second gas connector. The second connecting seat has an air passage that communicates with the second gas connector and the first gas quick-change connector. The second pull seat has a U-shaped structure. One end of the second pull seat is threaded to the second adjusting screw. The end of the second adjusting screw extends into the second pull seat and is rotatably connected to the second connecting seat. The second connecting seat has a second positioning pin for tightening the second adjusting screw. The second connecting seat and the second pull seat are slidably fitted. One end of the opening of the second pull seat has a second pull plate for tightening the gas pressure regulator inlet end and connecting the gas pressure regulator inlet end to the first gas quick-change connector. The second pull plate has a U-shaped groove that matches the gas pressure regulator inlet end.

[0012] Furthermore, a first adjusting handle is provided at the end of the second adjusting screw away from the second connecting seat.

[0013] Furthermore, the first gas quick-connect fitting includes multiple models, with different models having different connection interfaces, so that different models of the first gas quick-connect fitting can be adapted to different models of gas pressure regulators.

[0014] Furthermore, the arc-shaped component includes two arc-shaped plates, each with a connecting plate at one end. The connecting plate has a groove, and an adjusting bolt passes through the groove. The adjusting bolt is threaded onto the first tensioning and positioning assembly. The other ends of the two arc-shaped plates are connected to each other. Arc-shaped protrusions are symmetrically arranged at the outer edges of the two arc-shaped plates. A tightening assembly is slidably arranged between the two arc-shaped plates through the arc-shaped protrusions.

[0015] Furthermore, the tightening assembly includes a sliding seat, a third adjusting screw, a third connecting seat, and a second gas quick-connect fitting for tightening and connecting to the outlet of the gas pressure regulator. The sliding seat has a U-shaped structure. The end of the sliding seat away from the opening is provided with an arc-shaped groove that mates with the arc-shaped protrusions of the two arc-shaped plates. The third adjusting screw is threadedly connected to this end of the sliding seat. One end of the third adjusting screw is provided with a second adjusting handle. The other end of the third adjusting screw extends into the sliding seat and is rotatably connected to one end of the third connecting seat. The third connecting seat is provided with a third positioning pin for tightening the third adjusting screw. The third connecting seat is located at one end of the opening of the sliding seat and is slidably engaged with the sliding seat. The other end of the third connecting seat is provided with a second gas quick-connect fitting. The third connecting seat has an air passage that connects to the second gas quick-connect fitting and the pressure hose.

[0016] Furthermore, the second gas quick-connect fitting includes multiple models, with different models having different connection interfaces, so that different models of the second gas quick-connect fitting can be adapted to different models of gas pressure regulators.

[0017] Furthermore, the two arc-shaped plates are symmetrically provided with support arms on their outer sides. The support arms are threaded with height adjustment screws. The upper end of the height adjustment screws is locked and fixed by a nut, and the lower end of the height adjustment screws is provided with support legs.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] (1) The present invention provides a gas pressure regulator testing device, which is equipped with a tensioning and positioning mechanism and a clamping mechanism. The tensioning and positioning mechanism can quickly achieve the fixed positioning of the gas pressure regulator. The clamping mechanism, through the cooperation of the arc plate and the sliding seat, allows the sliding seat to rotate to any angle along the arc plate. At the same time, in conjunction with the horizontal movement of the arc plate, the third connecting seat can be better connected to the gas outlet end of the gas pressure regulator. Thus, the testing device can adapt to the situation where the gas inlet end and the gas outlet end of the gas pressure regulator are at different angles, so as to meet the calibration work of different models of gas pressure regulators. The application is more flexible and convenient, and its practicality is stronger.

[0020] (2) The present invention provides a gas pressure regulator testing device, wherein the tensioning and positioning mechanism is provided with a first tensioning and positioning component and a second tensioning and positioning component. By adjusting the first adjusting screw, the first pulling plate can quickly tighten the second gas connecting piece, so that the gas passage of the second gas connecting piece is sealed and connected with the first connecting seat. By adjusting the second adjusting screw, the second pulling plate can quickly tighten the gas inlet end of the gas pressure regulator, so that the gas passage of the gas pressure regulator inlet end is quickly connected. The operation is convenient through screw adjustment, which can improve the detection efficiency. The connection method of tensioning by the pulling plate can increase the sealing of the gas passage connection, thereby ensuring the detection accuracy and detection effect.

[0021] (3) The present invention provides a gas pressure regulator detection device. The tightening assembly can achieve both the loosening and locking states between the sliding seat and the arc plate by finely adjusting the third adjusting screw, thereby adjusting the position of the sliding seat on the arc plate. The adjustment is convenient and quick, and the structure is ingeniously designed.

[0022] (4) The present invention provides a gas pressure regulator testing device. The first gas quick-connect connector and the second gas quick-connect connector are available in various models. Different models of gas quick-connect connectors have different connection interfaces to adapt to different models of gas pressure regulators. The device has a simple structure, is easy to disassemble and assemble, can meet the testing requirements, and is flexible and convenient to use. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the gas pressure regulator detection device of this utility model.

[0024] Figure 2 This is a schematic diagram of the first tensioning and positioning component of the gas pressure regulator detection device of this utility model.

[0025] Figure 3 This is a schematic diagram of the assembly of the arc-shaped component and the clamping assembly of the gas pressure regulator detection device of this utility model.

[0026] Figure 4 The diagram shows various models of the first and second gas quick-connect fittings of this utility model.

[0027] Figure 5 This is a schematic diagram showing the position of the sliding seat when the inlet and outlet of the gas pressure regulator of this utility model are at a 90° angle.

[0028] Figure 6 This is a schematic diagram showing the position of the sliding seat when the inlet and outlet of the gas pressure regulator of this utility model are at 180°.

[0029] In the diagram: 1. Base, 2. Support, 3. Gas pipe, 4. Valve, 5. Standard gauge, 6. First gas connector, 7. Second gas connector, 8. First connecting seat, 9. First pull seat, 10. First positioning pin, 11. First adjusting screw, 12. First pull plate, 13. Second connecting seat, 14. Second pull seat, 15. Second positioning pin, 16. Second adjusting screw, 17. First adjusting handle, 18. Second pull plate, 19. First gas quick-connect fitting, 20. Arc plate, 21. Connecting plate, 22. Slide groove, 23. Adjusting bolt, 24. Sliding seat, 25. Arc groove, 26. Third adjusting screw, 27. Second adjusting handle, 28. Third connecting seat, 29. Third positioning pin, 30. Second gas quick-connect fitting, 31. Support arm, 32. Height adjusting screw, 33. Nut, 34. Support leg, 35. Pressure hose, 36. Gas pressure regulator. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, but the present invention is not limited to the specific embodiments.

[0031] like Figure 1-4 The gas pressure regulator detection device shown includes a base 1, a detection mechanism, a tensioning and positioning mechanism, and a clamping mechanism. The detection mechanism and the tensioning and positioning mechanism are respectively mounted on the base 1, and supports 2 are provided at the four corners of the bottom of the base 1.

[0032] The testing mechanism includes a trachea 3, a valve 4, and a standard gauge 5. The air inlet of the trachea 3 is connected to an air source, and the air outlet of the trachea 3 is connected to a tensioning and positioning mechanism. The valve 4 and the standard gauge 5 are connected to the trachea 3.

[0033] The tensioning and positioning mechanism includes a first tensioning and positioning component and a second tensioning and positioning component. The air inlet of the first tensioning and positioning component is connected to the air outlet of the air pipe 3, and the air outlet of the first tensioning and positioning component is connected to the air inlet of the second tensioning and positioning component. The second tensioning and positioning component is used to tension the gas pressure regulator 36 and connect the air outlet of the second tensioning and positioning component to the air inlet of the gas pressure regulator 36.

[0034] The tightening mechanism includes an arc-shaped component and a tightening assembly for tightening and connecting the outlet of the gas pressure regulator. The arc-shaped component is horizontally adjustable and is mounted on the first tensioning and positioning assembly. The tightening assembly is slidably mounted on the arc-shaped component and is connected to the gas recovery device via a pressure hose 35.

[0035] Preferably, the tensioning and positioning mechanism further includes a first gas connector 6 and a second gas connector 7. The first gas connector 6 is disposed on the base 1. The inlet end of the first gas connector 6 is connected to the gas pipe 3. The outlet end of the first gas connector 6 is connected to the inlet end of the first tensioning and positioning assembly. The outlet end of the first tensioning and positioning assembly is connected to the inlet end of the second gas connector 7. The outlet end of the second gas connector 7 is connected to the inlet end of the second tensioning and positioning assembly. The outlet end of the second tensioning and positioning assembly is provided with a first gas quick-change connector 19 that communicates with the inlet end of the gas pressure reducer.

[0036] Preferably, the first tensioning and positioning assembly includes a first connecting seat 8, a first pull seat 9, and a first adjusting screw 11. The first connecting seat 8 is disposed at the upper end of the first gas connector 6. The first connecting seat 8 is provided with an air passage that communicates with the first gas connector 6 and the second gas connector 7. The first pull seat 9 has a U-shaped structure. One end of the first pull seat 9 is threadedly connected to the first adjusting screw 11. The end of the first adjusting screw 11 extends into the first pull seat 9 and is rotatably connected to the first connecting seat 8. The first connecting seat 8 is provided with a first positioning pin 10 for tightening the first adjusting screw 11. The first connecting seat 8 and the first pull seat 9 are slidably fitted. One open end of the first pull seat 9 is provided with a first pull plate 12 for tightening the second gas connector 7. The first pull plate 12 has an arc-shaped groove. The second gas connector 7 is provided with an annular groove that mates with the arc-shaped groove of the first pull plate 12. The second gas connector 7 has an L-shaped structure. The second gas connector 7 is provided with an air passage that communicates with the first connecting seat 8 and the second tensioning and positioning assembly.

[0037] Preferably, the second tensioning and positioning assembly includes a second connecting seat 13, a second pull seat 14, and a second adjusting screw 16. The second connecting seat 13 is located at the upper end of the second gas connector 7. The second connecting seat 13 has an air passage that communicates with the second gas connector 7 and the first gas quick-connect fitting 19. The second pull seat 14 has a U-shaped structure. One end of the second pull seat 14 is threadedly connected to the second adjusting screw 16. The end of the second adjusting screw 16 extends into the second pull seat 14 and is rotatably connected to the second connecting seat 13. The second connecting seat 13 is provided with a second positioning pin 15 for tightening the second adjusting screw 16. The second connecting seat 13 and the second pull seat 14 are slidably engaged. The end of the second adjusting screw 16 away from the second connecting seat 13 is provided with a first adjusting handle 17. The open end of the second pull seat 14 is provided with a second pull plate 18 for tightening the gas pressure regulator inlet end and connecting the gas pressure regulator inlet end to the first gas quick-connect fitting 19. The second pull plate 18 has a U-shaped groove that matches the gas pressure regulator inlet end.

[0038] Preferably, the first gas quick-connect coupling 19 includes multiple models, with different models having different connection interfaces, so that different models of the first gas quick-connect coupling 19 can be adapted to different models of gas pressure regulators. Its structure is simple, easy to assemble and disassemble, can meet testing requirements, and is flexible and convenient to use.

[0039] The tensioning and positioning mechanism is equipped with a first tensioning and positioning component and a second tensioning and positioning component. By adjusting the first adjusting screw, the first pull claw can quickly tighten the second gas connector, making the gas passage of the second gas connector sealed and connected with the first connecting seat. By adjusting the second adjusting screw, the second pull claw can quickly tighten the inlet end of the gas pressure regulator, thereby quickly connecting the gas passage at the inlet end of the gas pressure regulator. The screw adjustment makes operation convenient and can improve detection efficiency. The connection method of tightening with the pull claw can increase the sealing of the gas passage connection, thereby ensuring detection accuracy and detection effect.

[0040] Preferably, the arc-shaped component includes two arc-shaped plates 20, each of which has a connecting plate 21 at one end. The connecting plate 21 has a groove 22, and an adjusting bolt 23 passes through the groove 22. The adjusting bolt 23 is threaded onto the first pull seat 9. The other ends of the two arc-shaped plates 20 are connected to each other. Arc-shaped protrusions 21 are symmetrically arranged at the outer edges of the two arc-shaped plates 20. A clamping assembly is slidably arranged between the two arc-shaped plates 20 through the arc-shaped protrusions 21.

[0041] Preferably, the clamping assembly includes a sliding seat 24, a third adjusting screw 26, a third connecting seat 28, and a second gas quick-connect fitting 27 for clamping and connecting to the outlet of the gas pressure regulator. The sliding seat 24 has a U-shaped structure. The end of the sliding seat 24 away from the opening is provided with an arc-shaped groove 25 that mates with two arc-shaped protrusions 21. The third adjusting screw 26 is threaded to the end of the sliding seat 24. A second adjusting handle 27 is provided at one end of the third adjusting screw 26. The other end of the third adjusting screw 26 extends into the sliding seat 24 and is rotatably connected to one end of the third connecting seat 28. A third positioning pin 29 for clamping the third adjusting screw 26 is provided on the third connecting seat 28. The third connecting seat 28 is located at the opening end of the sliding seat 24 and is slidably engaged with the sliding seat 24. A second gas quick-connect fitting 30 is provided at the other end of the third connecting seat 28. An air passage is provided on the third connecting seat 28 that communicates with the second gas quick-connect fitting 30 and the pressure hose 35.

[0042] Preferably, the second gas quick-connector 30 includes multiple models, and different models of the second gas quick-connector 30 have different connection interfaces, so that different models of the second gas quick-connector 30 can be adapted to different models of gas pressure regulators. It has a simple structure, is easy to disassemble and assemble, can meet the testing requirements, and is flexible and convenient to use.

[0043] Preferably, support arms 31 are symmetrically arranged on the outer sides of the two arc-shaped plates 20. A height adjustment screw 32 is threaded onto the support arm 31. The upper end of the height adjustment screw 32 is locked and fixed by a nut 33. A support leg 34 is provided at the lower end of the height adjustment screw 32.

[0044] When using the gas pressure regulator detection device of this utility model: First, loosen the first positioning pin 10, rotate the first adjusting screw 11, the first adjusting screw 11 drives the first pull seat 9 to move horizontally, and then tighten the second gas connecting piece 7 through the first pull claw 12, so that the second gas connecting piece 7 is connected to the gas passage of the first connecting seat 8. Then, place the gas pressure regulator 36 in the opening position of the second pull seat 14, loosen the second positioning pin 15, rotate the first adjusting handle 17 to drive the second adjusting screw 16 to rotate, the second adjusting screw 16 drives the second pull seat 14 to move horizontally, and then tighten the gas pressure regulator 36 in the inlet end through the second pull claw 18, so that the gas pressure regulator 36 inlet end is connected to the first gas quick-change connector 19, and thus open the gas passage of the gas pressure regulator 36 inlet end. Then, loosen the third positioning pin 29, rotate the second adjusting handle 27 to drive the third adjusting screw 26 to rotate, and then... The third adjusting screw 26 drives the sliding seat 24 for fine-tuning, so that the sliding seat 24 is in a loose state with the two arc plates 20. At this time, the angle of the sliding seat 24 can be adjusted according to the position of the gas pressure regulator 36 outlet port to adapt to different models of gas pressure regulator 36. At the same time, the two adjusting bolts 23 are adjusted to adjust the position of the connecting plate 21 so that the second gas quick-connect connector 30 is tightly connected to the gas pressure regulator 36 outlet end. Then, the third adjusting screw 26 is adjusted so that the arc groove sidewall of the sliding seat 24 abuts against the arc protrusion 21, thereby locking the sliding seat 24 and opening the gas passage at the gas pressure regulator 36 outlet end. Then, the gas source is turned on, and the valve 4 is adjusted to calibrate the gas pressure regulator 36. By fine-tuning the third adjusting screw 26, the loosening and locking states between the sliding seat 24 and the arc plate 20 can be realized, thereby adjusting the position of the sliding seat 24 on the arc plate. Its adjustment is convenient and quick, and the structural design is ingenious. Figure 5-6 The figures show the positions of the sliding seat 24 when the inlet and outlet of the gas pressure regulator 36 are at 90° and 180°, respectively.

[0045] This utility model discloses a gas pressure regulator testing device, which is equipped with a tensioning and positioning mechanism and a clamping mechanism. The tensioning and positioning mechanism can quickly and securely limit the gas pressure regulator. The clamping mechanism, through the cooperation of an arc plate and a sliding seat, allows the sliding seat to rotate to any angle along the arc plate. At the same time, in conjunction with the horizontal movement of the arc plate, the third connecting seat can better connect with the gas pressure regulator's outlet end. Thus, the testing device can adapt to situations where the gas pressure regulator's inlet and outlet ends are at different angles, meeting the calibration requirements of different models of gas pressure regulators. It is more flexible and convenient in application and has stronger practicality.

[0046] The above description, in conjunction with preferred technical solutions, provides a further detailed explanation of this utility model. It should not be construed that the specific implementation of the utility model is limited to these descriptions. For those skilled in the art, simple deductions and substitutions can be made without departing from the concept of this utility model, and all such modifications and substitutions should be considered within the scope of protection of this utility model.

Claims

1. A gas pressure regulator detection device, characterized in that: It includes a base, a detection mechanism, a tensioning and positioning mechanism, and a clamping mechanism, wherein the detection mechanism and the tensioning and positioning mechanism are respectively mounted on the base. The testing mechanism includes an air tube, a valve, and a standard gauge. The air inlet of the air tube is connected to an air source, and the air outlet of the air tube is connected to a tensioning and positioning mechanism. The valve and the standard gauge are connected to the air tube. The tensioning and positioning mechanism includes a first tensioning and positioning component and a second tensioning and positioning component. The air inlet of the first tensioning and positioning component is connected to the air outlet of the air pipe, and the air outlet of the first tensioning and positioning component is connected to the air inlet of the second tensioning and positioning component. The second tensioning and positioning component is used to tension the gas pressure regulator and connect the air outlet of the second tensioning and positioning component to the air inlet of the gas pressure regulator. The tightening mechanism includes an arc-shaped component and a tightening assembly for tightening and connecting the outlet of the gas pressure regulator. The arc-shaped component is horizontally adjustable and mounted on the first tensioning and positioning assembly. The tightening assembly is slidably mounted on the arc-shaped component. The tightening assembly is connected to the gas recovery device via a pressure hose.

2. The gas pressure regulator detection device according to claim 1, characterized in that: The tensioning and positioning mechanism further includes a first gas connector and a second gas connector. The first gas connector is mounted on the base. The inlet end of the first gas connector is connected to a gas pipe. The outlet end of the first gas connector is connected to the inlet end of the first tensioning and positioning assembly. The outlet end of the first tensioning and positioning assembly is connected to the inlet end of the second gas connector. The outlet end of the second gas connector is connected to the inlet end of the second tensioning and positioning assembly. The outlet end of the second tensioning and positioning assembly is provided with a first gas quick-change connector that communicates with the inlet end of the gas pressure reducer.

3. The gas pressure regulator detection device according to claim 2, characterized in that: The first tensioning and positioning assembly includes a first connecting seat, a first pull seat, and a first adjusting screw. The first connecting seat is disposed at the upper end of the first gas connector. The first connecting seat has an air passage communicating with the first gas connector and the second gas connector. The first pull seat has a U-shaped structure. One end of the first pull seat is threadedly connected to the first adjusting screw. The end of the first adjusting screw extends into the first pull seat and is rotatably connected to the first connecting seat. The first connecting seat is provided with a first positioning pin for tightening the first adjusting screw. The first connecting seat and the first pull seat are slidably fitted. One end of the opening of the first pull seat is provided with a first pull plate for tightening the second gas connector. The first pull plate has an arc-shaped groove. The second gas connector has an annular groove that mates with the arc-shaped groove of the first pull plate. The second gas connector has an L-shaped structure. The second gas connector has an air passage communicating with the first connecting seat and the second tensioning and positioning assembly.

4. The gas pressure regulator detection device according to claim 2, characterized in that: The second tensioning and positioning assembly includes a second connecting seat, a second pull seat, and a second adjusting screw. The second connecting seat is located at the upper end of the second gas connector. The second connecting seat has a gas passage that communicates with the second gas connector and the first gas quick-change connector. The second pull seat has a U-shaped structure. One end of the second pull seat is threaded to the second adjusting screw. The end of the second adjusting screw extends into the second pull seat and is rotatably connected to the second connecting seat. The second connecting seat has a second positioning pin for tightening the second adjusting screw. The second connecting seat and the second pull seat are slidably fitted. One end of the opening of the second pull seat has a second pull plate for tightening the gas pressure regulator inlet end and connecting the gas pressure regulator inlet end to the first gas quick-change connector. The second pull plate has a U-shaped groove that matches the gas pressure regulator inlet end.

5. A gas pressure regulator detection device according to claim 4, characterized in that: The second adjusting screw is provided with a first adjusting handle at the end away from the second connecting seat.

6. A gas pressure regulator detection device according to any one of claims 2-5, characterized in that: The first gas quick-connect fitting includes multiple models, and different models of the first gas quick-connect fitting have different connection interfaces so that different models of the first gas quick-connect fitting can be adapted to different models of gas pressure regulators.

7. The gas pressure regulator detection device according to claim 1, characterized in that: The arc-shaped component includes two arc-shaped plates, each with a connecting plate at one end. The connecting plate has a groove, and an adjusting bolt passes through the groove. The adjusting bolt is threaded onto the first tensioning and positioning assembly. The other ends of the two arc-shaped plates are connected to each other. Arc-shaped protrusions are symmetrically arranged at the outer edges of the two arc-shaped plates. A tightening assembly is slidably arranged between the two arc-shaped plates through the arc-shaped protrusions.

8. A gas pressure regulator detection device according to claim 7, characterized in that: The tightening assembly includes a sliding seat, a third adjusting screw, a third connecting seat, and a second gas quick-connect fitting for tightening and connecting to the outlet of the gas pressure regulator. The sliding seat has a U-shaped structure. The end of the sliding seat away from the opening is provided with an arc-shaped groove that mates with the arc-shaped protrusions of two arc-shaped plates. The third adjusting screw is threadedly connected to this end of the sliding seat. A second adjusting handle is provided at one end of the third adjusting screw. The other end of the third adjusting screw extends into the sliding seat and is rotatably connected to one end of the third connecting seat. A third positioning pin is provided on the third connecting seat for tightening the third adjusting screw. The third connecting seat is located at one end of the opening of the sliding seat and is slidably engaged with the sliding seat. The second gas quick-connect fitting is provided at the other end of the third connecting seat. The third connecting seat has an air passage that connects to the second gas quick-connect fitting and the pressure hose.

9. A gas pressure regulator detection device according to claim 8, characterized in that: The second gas quick-connect fitting includes various models, and different models of the second gas quick-connect fitting have different connection interfaces so that different models of the second gas quick-connect fitting can be adapted to different models of gas pressure regulators.

10. A gas pressure regulator detection device according to any one of claims 7-9, characterized in that: The two arc-shaped plates are also symmetrically provided with support arms on their outer sides. The support arms are threaded with height adjustment screws. The upper end of the height adjustment screws is locked and fixed by a nut, and the lower end of the height adjustment screws is provided with support legs.

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