Opening pressure adjusting mechanism of pressure reducing valve

Abstract

The utility model discloses a pressure reducing valve opening pressure adjusting mechanism which is characterized in that the pressure reducing valve opening pressure adjusting mechanism comprises a movable seat plate and a movable plate, the movable plate is arranged on the movable seat plate through a linear guide rail sliding block assembly, a movable mounting plate is arranged on the movable plate, and a first mounting seat plate and a second mounting seat plate are vertically arranged on the movable mounting plate; a first sliding block fixing plate sliding horizontally is arranged on the first mounting seat plate, a second sliding block fixing plate sliding vertically is arranged on the first sliding block fixing plate, a telescopic rod seat is rotatably arranged on the second sliding block fixing plate, a bit lock is arranged at one end of the telescopic rod seat in a floating mode, a bit is clamped in the bit lock, and the front end face of the bit is conical. A servo motor is arranged on the second mounting seat plate, and an output shaft of the servo motor is connected with the other end of the telescopic rod seat through a universal joint. The utility model has the beneficial effects that the structure is simple, the position deviation of the adjusting bolt on the pressure reducing valve can be automatically adapted, the opening pressure of the pressure reducing valve can be automatically adjusted, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automatic valve regulating devices, specifically to a pressure regulating mechanism for opening a pressure reducing valve. Background Technology

[0002] A pressure reducing valve is a specialized device that automatically reduces the working pressure of a pipeline. Its function is to reduce the pressure of a medium from a higher pressure range to a given pressure. It can reduce the high liquid pressure upstream of the valve to the required level downstream. Performance testing of a pressure reducing valve involves verifying that it automatically opens when a certain air pressure is exceeded. This testing requires adjusting the valve's opening pressure. Currently, this is done manually, but this method is extremely inefficient. Therefore, it is necessary to design an automatic adjustment mechanism for the pressure reducing valve's opening pressure. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this utility model provides a pressure regulating mechanism for a pressure reducing valve. It has a simple structure and can automatically align the adjusting bolts on the clamped pressure reducing valve, thereby improving detection efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A pressure regulating mechanism for opening a pressure reducing valve, characterized in that it includes a movable base plate and a movable plate. The movable plate is mounted on the movable base plate via a linear guide slider assembly. A movable mounting plate is mounted on the movable plate. A first mounting plate and a second mounting plate are vertically mounted on the movable mounting plate. A first slider fixing plate that slides horizontally is mounted on the first mounting plate. A second slider fixing plate that slides vertically is mounted on the first slider fixing plate. A telescopic rod seat is rotatably mounted on the second slider fixing plate. A bit lock is floatingly mounted at one end of the telescopic rod seat. The bit lock clamps a bit. The front end face of the bit is tapered. A servo motor is mounted on the second mounting plate. The output shaft of the servo motor is connected to the other end of the telescopic rod seat via a universal joint.

[0006] Furthermore, a translation cylinder for driving the movable plate forward is provided below the movable seat plate.

[0007] Furthermore, the movable plate is provided with two opposing adjustment blocks, each equipped with a horizontal adjustment bolt and a vertical adjustment bolt. The small end of the horizontal adjustment bolt passes through the adjustment block and abuts against a round hole on the movable mounting plate, while the small end of the vertical adjustment bolt passes through the adjustment block and abuts against the top surface of the movable plate. Both the horizontal and vertical adjustment bolts are equipped with locking nuts.

[0008] Furthermore, a first guide rail slider is arranged horizontally on the first mounting plate, and a horizontal limiting block is provided on the first mounting plate facing both ends of the first guide rail slider. A first spring is provided on the opposite surface of the horizontal limiting block, and the inner end of the first spring abuts against the end face of the first slider fixing plate. A second guide rail slider is arranged vertically on the first slider fixing plate, and a vertical limiting block is provided on the first mounting plate facing both ends of the second guide rail slider. A second spring is provided on the opposite surface of the vertical limiting block, and the inner end of the second spring abuts against the end face of the second slider fixing plate.

[0009] Furthermore, the second slider fixing plate is fitted with a bearing that cooperates with the telescopic rod seat.

[0010] The advantages of this utility model include: simple structure, automatic adaptation to the positional deviation of the adjusting bolt on the pressure reducing valve, automatic adjustment of the opening pressure of the pressure reducing valve, and improved detection efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a cross-sectional view of the present invention. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0014] One such Figure 1-2 The pressure regulating mechanism for the pressure reducing valve shown includes a movable base plate 1 and a movable plate 2. The movable plate 2 is mounted on the movable base plate 1 via a linear guide slider assembly 3. A translation cylinder 13 is provided below the movable base plate 1 to drive the movable plate 2 to move forward.

[0015] A movable mounting plate 4 is provided on the movable plate 2, and a first mounting base plate 5 and a second mounting base plate 6 are vertically mounted on the movable mounting plate 4. The first mounting base plate 5 has a horizontally sliding first slider fixing plate 7, and a vertically sliding second slider fixing plate 8. A telescopic rod seat 9 is rotatably mounted on the second slider fixing plate 8. Both the first slider fixing plate 7 and the second slider fixing plate 8 have through holes through which the telescopic rod seat 9 can pass. A bit lock 10 is floatingly mounted at one end of the telescopic rod seat 9, clamping a bit 11. The front end face of the bit 11 is tapered to facilitate insertion into the groove of the pressure regulating bolt of the pressure reducing valve. A servo motor 12 is provided on the second mounting base plate 6. The output shaft of the servo motor 12 is connected to the other end of the telescopic rod seat 9 via a universal joint, thereby driving the telescopic rod seat 9 to rotate.

[0016] A first guide rail slider is arranged horizontally on the first mounting plate 5. A horizontal limiting block 17 is provided on the first mounting plate 5, facing both ends of the first guide rail slider. A first spring 19 is provided on the opposite surface of the horizontal limiting block 17, with its inner end abutting against the end face of the first slider fixing plate 7. A second guide rail slider is arranged vertically on the first slider fixing plate 7. A vertical limiting block 18 is provided on the first mounting plate 5, facing both ends of the second guide rail slider. A second spring 20 is provided on the opposite surface of the vertical limiting block 18, with its inner end abutting against the end face of the second slider fixing plate 8. This structure ensures that the telescopic rod seat 9 can float in any direction, allowing the screwdriver bit 11 to be inserted directly into the adjusting bolt groove on the pressure reducing valve.

[0017] To ensure stable rotation of the bit 11, the second slider fixing plate 8 in this embodiment is equipped with a bearing that cooperates with the telescopic rod seat 9.

[0018] To ensure that the axis of the telescopic rod seat 9 remains coaxial with the axis of the pressure regulating screw of the pressure reducing valve after clamping, the movable plate 2 of this utility model is provided with two opposing adjusting blocks 14. The adjusting blocks 14 are provided with a horizontal adjusting bolt 15 and a vertical adjusting bolt 16. The small end of the horizontal adjusting bolt 15 passes through the adjusting block 14 and abuts against the round hole on the movable mounting plate 4. The small end of the vertical adjusting bolt 16 passes through the adjusting block 14 and abuts against the top surface of the movable plate 2. Both the horizontal adjusting bolt 15 and the vertical adjusting bolt 16 are provided with locking nuts.

[0019] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A pressure regulating mechanism for opening a pressure reducing valve, characterized in that: The system includes a movable base plate (1) and a movable plate (2). The movable plate (2) is mounted on the movable base plate (1) via a linear guide slider assembly (3). A movable mounting plate (4) is mounted on the movable plate (2). A first mounting base plate (5) and a second mounting base plate (6) are vertically mounted on the movable mounting plate (4). A first sliding block fixing plate (7) is mounted on the first mounting base plate (5) and a second sliding block fixing plate (8) is mounted on the first sliding block fixing plate (7). A telescopic rod seat (9) is rotatably mounted on the second sliding block fixing plate (8). A bit lock (10) is floatingly mounted on one end of the telescopic rod seat (9). A bit lock (10) clamps a bit (11). The front end face of the bit (11) is conical. A servo motor (12) is mounted on the second mounting base plate (6). The output shaft of the servo motor (12) is connected to the other end of the telescopic rod seat (9) via a universal joint.

2. The pressure regulating mechanism for a pressure reducing valve according to claim 1, characterized in that: A translation cylinder (13) for driving the movable plate (2) forward is provided below the movable seat plate (1).

3. The pressure regulating mechanism for a pressure reducing valve according to claim 1, characterized in that: The movable plate (2) is provided with two opposing adjustment blocks (14). The adjustment blocks (14) are provided with a horizontal adjustment bolt (15) and a vertical adjustment bolt (16). The small end of the horizontal adjustment bolt (15) passes through the adjustment block (14) and abuts against the round hole on the movable mounting plate (4). The small end of the vertical adjustment bolt (16) passes through the adjustment block (14) and abuts against the top surface of the movable plate (2). Both the horizontal adjustment bolt (15) and the vertical adjustment bolt (16) are provided with locking nuts.

4. The pressure regulating mechanism for a pressure reducing valve according to claim 1, characterized in that: A first guide rail slider is arranged horizontally on the first mounting base plate (5). A horizontal limiting block (17) is provided on the first mounting base plate (5) facing both ends of the first guide rail slider. A first spring (19) is provided on the opposite surface of the horizontal limiting block (17). The inner end of the first spring (19) abuts against the end face of the first slider fixing plate (7). A second guide rail slider is arranged vertically on the first slider fixing plate (7). A vertical limiting block (18) is provided on the first mounting base plate (5) facing both ends of the second guide rail slider. A second spring (20) is provided on the opposite surface of the vertical limiting block (18). The inner end of the second spring (20) abuts against the end face of the second slider fixing plate (8).

5. The pressure regulating mechanism for a pressure reducing valve according to claim 1, characterized in that: The second slider fixing plate (8) is fitted with a bearing that cooperates with the telescopic rod seat (9).

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