Pressure stabilizing and regulating device for hydraulic system of oil exploitation

Abstract

This utility model discloses a pressure stabilization and regulation device for a hydraulic system in oil extraction, including a valve body. Inside the valve body is a valve core, and a compression spring is fixed to the top of the valve core. A movable plate is located above the compression spring. Inside the valve body is a limiting rod, and the top of the movable plate and the bottom of the limiting rod are rotatably connected. Inside the limiting rod are two fixed cylinders, and inside each fixed cylinder is a fixed block. Inside each fixed block is a movable rod. Rotating the circular block causes the threaded cylinder to rotate, which in turn moves the limiting rod. The limiting rod then moves the movable plate, which compresses the compression spring, thus adjusting the pressure of the compression spring on the valve core. After adjustment, the compression ring compresses the compression block, the push block compresses the circular rod and the movable block, and the movable block compresses the top block, the movable rod, the mounting plate, and the rubber block. The rubber block compresses the rack, thus preventing vibration from causing the limiting rod to move.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic system pressure stabilization and regulation technology, specifically a pressure stabilization and regulation device for oil extraction hydraulic systems. Background Technology

[0002] A hydraulic system for oil extraction is a system that uses a liquid (usually oil) as the working medium to transmit power and control mechanical movements through the pressure of the liquid. It mainly consists of power components, actuators, control components, auxiliary components, and the working medium.

[0003] The pressure stabilization and regulation device of the hydraulic system mainly includes the hydraulic balance valve and the relief valve. The existing relief valve can maintain the stable operation of the hydraulic system by squeezing the spring pressure. However, the relief valve may vibrate during use, which may cause the adjusted spring pressure to change and affect the use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pressure stabilization and regulation device for oil extraction hydraulic systems, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure stabilizing and regulating device for a hydraulic system in oil extraction, comprising a valve body, a valve core inside the valve body, a compression spring fixed to the top of the valve core, a movable plate above the compression spring, a limiting rod inside the valve body, a top of the movable plate and the bottom of the limiting rod being rotatably connected, two fixed cylinders fixed inside the limiting rod, a fixed block fixed inside the fixed cylinder, and a movable rod inside the fixed block;

[0006] The two ends of the movable rod are respectively fixed with a mounting plate and a top block. A rubber block is fixed on the other side of the mounting plate. The limiting rod has a movable groove inside. The movable groove has a movable block inside. A round rod is fixed on the top of the movable block. A round block is rotatably connected to the top of the limiting rod. A round hole is opened on the outer wall of the round block. A ring is fixed inside the round hole.

[0007] The ring has a connecting rod inside, and a squeezing block and a pushing block are fixed at both ends of the connecting rod, respectively. A compression spring is sleeved on the outside of the connecting rod, and a pushing spring is installed inside the movable groove. A squeezing ring is rotatably connected to the outer wall of the ring, and a squeezing groove is opened on the inner wall of the squeezing ring. Two racks are fixed inside the valve body, and the fixed cylinder is located inside the valve body.

[0008] Preferably, a return spring is sleeved on the outer side of the moving rod between the fixed block and the top block.

[0009] Preferably, the inside of the circular block is provided with a plug rod, and the top of the compression ring has two plug holes.

[0010] Preferably, a cylinder is fixed to the top of the insertion rod, a tension spring is fixed inside the cylinder, and the other end of the tension spring is fixedly connected to the circular block.

[0011] Preferably, the force of the push spring is greater than the sum of the forces of the two return springs.

[0012] Preferably, the bottom oil inlet of the valve body is a Venturi-type orifice.

[0013] Beneficial effects

[0014] This utility model provides a pressure stabilizing and regulating device for a hydraulic system in oil extraction. Compared with the prior art, it has the following advantages:

[0015] The pressure stabilization and regulation device of this oil extraction hydraulic system is configured with a limit ring, a top block, a moving plate, a moving rod, a rack, a compression ring, a compression block, a push block, a connecting rod, a round rod, and a moving block. Rotating the round block causes the threaded cylinder to rotate, which in turn moves the round block downwards. The round block moves the limit rod, which in turn moves the moving plate. The moving plate compresses the compression spring, adjusting its pressure and thus the pressure of the compression spring on the valve core. After adjustment, rotating the compression ring compresses the compression block, which in turn moves the connecting rod and the push block. The push block compresses the round rod and the moving block, which in turn compresses the top block, the moving rod, and the mounting plate. The mounting plate moves a rubber block, which in turn compresses the rack. This prevents vibration from causing the limit rod to move, thus limiting the movement of the moving plate and preventing changes in the adjusted compression spring pressure. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the valve body in this utility model;

[0018] Figure 3 This is a cross-sectional view of the circular block and screw in this utility model;

[0019] Figure 4 This is a bottom view of the insert rod and fixing cylinder in this utility model;

[0020] Figure 5 This is a schematic diagram of the extrusion ring in this utility model.

[0021] In the diagram: 1. Extrusion groove; 2. Valve body; 3. Fixed cylinder; 4. Limiting rod; 5. Extrusion ring; 6. Round block; 7. Valve core; 8. Extrusion spring; 9. Moving plate; 10. Rack; 11. Round hole; 12. Cylinder; 13. Extrusion block; 14. Compression spring; 15. Connecting rod; 16. Circular ring; 17. Rubber block; 18. Mounting plate; 19. Fixed block; 20. Return spring; 21. Movable groove; 22. Push spring; 23. Moving rod; 24. Top block; 25. Moving block; 26. Round rod; 27. Push block; 28. Tension spring; 29. ​​Insert rod; 30. Insertion hole; 31. Threaded cylinder. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides a technical solution: a pressure stabilizing and regulating device for a hydraulic system in oil extraction, comprising a valve body 2, a valve core 7 inside the valve body 2, a compression spring 8 fixed to the top of the valve core 7, a movable plate 9 above the compression spring 8, a limiting rod 4 inside the valve body 2, the top of the movable plate 9 and the bottom of the limiting rod 4 being rotatably connected, two fixed cylinders 3 fixed inside the limiting rod 4, a fixed block 19 fixed inside the fixed cylinder 3, a movable rod 23 inside the fixed block 19, a mounting plate 18 and a top block 24 fixed to both ends of the movable rod 23 respectively, a rubber block 17 fixed to the other side of the mounting plate 18, a movable groove 21 inside the limiting rod 4, a movable block 25 inside the movable groove 21, and a fixed top of the movable block 25 being fixed. There is a round rod 26, and a round block 6 is rotatably connected to the top of the limiting rod 4. A round hole 11 is opened on the outer wall of the round block 6. A ring 16 is fixed inside the round hole 11. A connecting rod 15 is provided inside the ring 16. A squeezing block 13 and a push block 27 are fixed at both ends of the connecting rod 15 respectively. A compression spring 14 is sleeved on the outer side of the connecting rod 15. A push spring 22 is provided inside the movable groove 21. A squeezing ring 5 is rotatably connected to the outer wall of the round block 6. A squeezing groove 1 is opened on the inner side wall of the squeezing ring 5. Two racks 10 are fixed inside the valve body 2. A fixed cylinder 3 is located inside the valve body 2. A threaded cylinder 31 is screwed inside the valve body 2. The top of the threaded cylinder 31 is fixedly connected to the bottom of the round block 6. This can prevent the pressure of the adjusted squeezing spring 8 from changing.

[0024] Furthermore, a return spring 20 is fitted on the outer side of the moving rod 23 between the fixed block 19 and the top block 24, which can separate the rubber block 17 and the rack 10. The inside of the round block 6 is provided with a plug rod 29. The top of the compression ring 5 has two insertion holes 30, which can limit the rotation of the compression ring 5. The top of the plug rod 29 is fixed with a cylinder 12, and a tension spring 28 is fixed inside the cylinder 12. The other end of the tension spring 28 is fixedly connected to the round block 6, which can prevent the plug rod 29 from moving out of the insertion hole 30. The elastic force of the pushing spring 22 is greater than the sum of the elastic forces of the two return springs 20, so the pushing spring 22 can push the moving block 25 to rise. The bottom oil inlet of the valve body 2 is a Venturi-type hole, which can reduce the impact of liquid on the valve core 7 and reduce the wear of the valve core 7.

[0025] During operation, the cylinder 12 is pulled, causing the insert rod 29 to move out of the insertion hole 30. Then, the extrusion ring 5 is rotated to align the extrusion groove 1 with the circular hole 11. This causes the compression spring 14 to push the extrusion block 13, connecting rod 15, and push block 27 to move. The push block 27 moves above the circular rod 26. Next, the push spring 22 pushes the moving block 25 and the circular rod 26 upwards. The moving block 25 no longer presses against the top block 24. The reset spring 20 pushes the moving rod 23, mounting plate 18, and rubber block 17 to move, separating the rubber block 17 from the rack 10. Then, the circular block 6 is rotated, causing the threaded cylinder 31 to rotate. The threaded cylinder 31 moves the circular block 6 downwards, and the circular block 6... The limit rod 4 moves, and the limit rod 4 moves the moving plate 9. The moving plate 9 squeezes the compression spring 8, adjusting the pressure of the compression spring 8, thereby adjusting the pressure of the compression spring 8 on the valve core 7. After adjustment, the compression ring 5 is rotated, and the compression ring 5 squeezes the compression block 13. The compression block 13 moves the connecting rod 15 and the push block 27. The push block 27 squeezes the round rod 26 and the moving block 25. The moving block 25 squeezes the top block 24, the moving rod 23 and the mounting plate 18. The mounting plate 18 moves the rubber block 17, and the rubber block 17 squeezes the rack 10. This prevents the limit rod 4 from moving due to vibration, thereby limiting the movement of the moving plate 9 and preventing the adjusted pressure of the compression spring 8 from changing.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Pressure stabilizing regulator of a hydraulic system of oil production, comprising a valve body (2), characterized in that: The valve body (2) is provided with a valve core (7) inside. A compression spring (8) is fixed on the top of the valve core (7). A moving plate (9) is provided above the compression spring (8). A limiting rod (4) is provided inside the valve body (2). The top of the moving plate (9) and the bottom of the limiting rod (4) are rotatably connected. Two fixed cylinders (3) are fixed inside the limiting rod (4). A fixed block (19) is fixed inside the fixed cylinder (3). A moving rod (23) is provided inside the fixed block (19). The two ends of the movable rod (23) are respectively fixed with a mounting plate (18) and a top block (24). A rubber block (17) is fixed on the other side of the mounting plate (18). The limiting rod (4) has an active groove (21) inside. The active groove (21) has a movable block (25) inside. A round rod (26) is fixed on the top of the movable block (25). A round block (6) is rotatably connected to the top of the limiting rod (4). A round hole (11) is opened on the outer wall of the round block (6). A ring (16) is fixed inside the round hole (11). The inner side of the ring (16) is provided with a connecting rod (15), and the two ends of the connecting rod (15) are respectively fixed with a squeezing block (13) and a push block (27). A compression spring (14) is sleeved on the outer side of the connecting rod (15). A push spring (22) is provided inside the movable groove (21). A squeezing ring (5) is rotatably connected to the outer side wall of the round block (6). A squeezing groove (1) is opened on the inner side wall of the squeezing ring (5). Two racks (10) are fixed inside the valve body (2). The fixed cylinder (3) is located inside the valve body (2).

2. The pressure stabilizing regulator of a petroleum production hydraulic system according to claim 1, characterized in that: A return spring (20) is sleeved on the outside of the moving rod (23) between the fixed block (19) and the top block (24).

3. The pressure stabilizing regulator of a hydraulic system for oil production according to claim 2, characterized in that: The inside of the circular block (6) is provided with a plug (29), and the top of the extrusion ring (5) has two insertion holes (30).

4. The pressure stabilizing regulator of a hydraulic system for oil production according to claim 3, characterized in that: A cylinder (12) is fixed to the top of the insertion rod (29), and a tension spring (28) is fixed inside the cylinder (12). The other end of the tension spring (28) is fixedly connected to the round block (6).

5. The pressure stabilizing regulator of a petroleum production hydraulic system according to claim 4, characterized in that: The force of the push spring (22) is greater than the sum of the forces of the two return springs (20).

6. The pressure stabilizing regulator for a hydraulic system of an oil production rig according to claim 5, characterized in that: The bottom oil inlet of the valve body (2) is a Venturi-shaped hole.

Images