Valve with differential pressure compensation structure

Abstract

The utility model relates to a valve with a differential pressure compensation structure, and belongs to the technical field of valves in the metallurgical industry. According to the technical scheme, the differential pressure compensation valve comprises a valve body (1) and a differential pressure compensation mechanism, the differential pressure compensation mechanism comprises a liquid inlet pipe (4), a liquid outlet pipe (5), flow guide pipes (8) and adjusting valves (9), the two ends of the valve body (1) are connected with the liquid inlet pipe (4) and the liquid outlet pipe (5) respectively, the liquid inlet pipe (4) and the liquid outlet pipe (5) are connected to the same adjusting valve (9) through the flow guide pipes (8) respectively, and a limiting supporting assembly is arranged between the adjusting valve (9) and the valve body; and the liquid inlet pipe (4) and the liquid outlet pipe (5) are in threaded connection with internal threaded pipes (7). The valve has the advantages that the pressure difference between the two sides of the valve body can be reduced, the pressure on the two sides of the valve body is gradually equal, therefore, the resistance generated when the valve body is opened can be reduced, the convenience of opening the valve is effectively improved, and large impact on a hydraulic system caused by the too large pressure difference between the two sides of the valve can be avoided.

Description

Technical Field

[0001] This utility model relates to a valve with a differential pressure compensation structure, belonging to the field of valve technology in the metallurgical industry. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters of the transported medium. Valves are control components in fluid transport systems, and have functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, or overflow pressure relief.

[0003] Existing ball valves used in hydraulic systems have a large pressure difference between their two ends during opening. This results in significant resistance to the rotation of the valve core, making it difficult to operate the valve handle and thus requiring considerable effort to open. Furthermore, the excessive pressure difference during opening can cause significant impact on the hydraulic system, affecting its operational safety. Utility Model Content

[0004] The purpose of this invention is to provide a valve with a differential pressure compensation structure, which can reduce the pressure difference on both sides of the valve body, gradually equalize the pressure on both sides of the valve body, thereby reducing the resistance when the valve body is opened, effectively improving the convenience of valve opening, and preventing excessive pressure difference on both sides of the valve from causing a large impact on the hydraulic system, thus solving the problems existing in the background art.

[0005] The technical solution of this utility model is:

[0006] A valve with a differential pressure compensation structure includes a valve body and a differential pressure compensation mechanism. The differential pressure compensation mechanism includes an inlet pipe, an outlet pipe, a guide pipe, and a regulating valve. The two ends of the valve body are respectively connected to the inlet pipe and the outlet pipe. The inlet pipe and the outlet pipe are respectively connected to the same regulating valve through a guide pipe. A limit support assembly is provided between the regulating valve and the valve body.

[0007] The limiting support assembly includes an internal threaded cylinder, an adjusting screw, and a U-shaped support plate. One end of the adjusting screw is threaded to the internal threaded cylinder, which is fixed to the valve body. The other end of the adjusting screw is rotatably connected to the U-shaped support plate, and the adjusting valve is mounted on the U-shaped support plate.

[0008] A push rod is radially inserted into the adjusting screw.

[0009] Both the inlet pipe and the outlet pipe are threaded with internally threaded pipes.

[0010] The outer wall of the internally threaded pipe is provided with multiple anti-slip grooves.

[0011] The guide pipe includes a bend, a branch pipe, an external hexagonal nut, and a transparent pipe. One end of the bend is threaded to an internally threaded pipe, and the other end of the bend is connected to the branch pipe through the transparent pipe. The branch pipe is fixedly connected to the regulating valve by an external hexagonal nut.

[0012] Both the valve body and the regulating valve are provided with arc-shaped directional grooves.

[0013] The valve body and the regulating valve are respectively equipped with handle one and handle two.

[0014] The valve body is provided with connecting pipes at both ends, and the connecting pipes are provided with mounting holes. The inlet pipe and the outlet pipe are respectively installed on the connecting pipes at both ends of the valve body through the corresponding mounting holes.

[0015] When the valve body needs to be opened, first turn the handle to open the regulating valve. Through the guide pipe, inlet pipe and outlet pipe, the oil on one side of the valve body is pre-supplied to the other side of the valve body, thereby reducing the pressure difference on both sides of the valve body and gradually making the pressure on both sides of the valve body equal, thus reducing the resistance when the valve body is opened.

[0016] The beneficial effects of this utility model are: through the differential pressure compensation mechanism, oil on one side of the valve body can be pre-supplied to the other side of the valve body, thereby reducing the pressure difference between the two sides of the valve body and gradually equalizing the pressure on both sides of the valve body. This reduces the resistance when the valve body is opened, effectively improving the convenience of valve opening, and avoiding the problem of excessive pressure difference between the two sides of the valve causing a large impact on the hydraulic system, thus effectively improving the safety of the hydraulic system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a perspective view of the present utility model;

[0019] Figure 3 This is a schematic diagram of the differential pressure compensation mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the valve body of this utility model;

[0021] Figure 5 This is a schematic diagram of the limiting support component of this utility model;

[0022] Figure 6 This is a schematic diagram of the internally threaded tube of this utility model;

[0023] In the diagram: 1. Valve body; 2. Handle 1; 3. Connecting pipe; 4. Inlet pipe; 5. Outlet pipe; 6. Mounting hole; 7. Internally threaded pipe; 8. Guide pipe; 9. Regulating valve; 10. Handle 2; 11. Internally threaded cylinder; 12. Adjusting screw; 13. U-shaped support plate; 14. Bend; 15. Branch pipe; 16. External hexagonal nut; 17. Transparent tube; 18. Arc-shaped guide groove; 19. Push rod; 20. Anti-slip groove; 21. Connecting flange; 22. Connecting hole. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and examples.

[0025] See attached document Figure 1-6 A valve with a differential pressure compensation structure includes a valve body 1 and a differential pressure compensation mechanism. The differential pressure compensation mechanism includes an inlet pipe 4, an outlet pipe 5, a guide pipe 8, and a regulating valve 9. The two ends of the valve body 1 are respectively connected to the inlet pipe 4 and the outlet pipe 5. The inlet pipe 4 and the outlet pipe 5 are respectively connected to the same regulating valve 9 through a guide pipe 8. A limit support assembly is provided between the regulating valve 9 and the valve body 1.

[0026] In this example, refer to the appendix. Figure 1-6 The valve with differential pressure compensation structure includes a valve body 1, a differential pressure compensation mechanism, and a limit support assembly, wherein:

[0027] The differential pressure compensation mechanism includes an inlet pipe 4, an outlet pipe 5, an internally threaded pipe 7, a guide pipe 8, a regulating valve 9, and a handle 10. The valve body 1 has mounting holes 6 on both connecting pipes 3. The inlet pipe 4 and the outlet pipe 5 are fixedly connected to the two mounting holes 6 respectively. The inlet pipe 4 and the outlet pipe 5 are each connected to the same regulating valve 9 via a guide pipe 8. A handle 10 is mounted on the regulating valve 9, and a limit support assembly is provided between the regulating valve 9 and the valve body 1. Both the regulating valve 9 and the valve body 1 are commonly used control valves in this field.

[0028] The guide pipe 8 includes a bend 14, a branch pipe 15, an external hexagonal nut 16, and a transparent pipe 17. One end of the bend 14 is threaded to the internally threaded pipe 7, and the other end of the bend 14 is connected to the branch pipe 15 through the transparent pipe 17. The branch pipe 15 is fixedly connected to the regulating valve 9 by the external hexagonal nut 16. The transparent pipe 17 facilitates the observation of the oil flow inside the differential pressure compensation mechanism, thereby facilitating the observation of whether the differential pressure compensation mechanism is operating normally and improving the ease of use.

[0029] The limiting support assembly includes an internally threaded cylinder 11 fixedly connected to the valve body 1. An adjusting screw 12 is threaded onto the internal thread of the internally threaded cylinder 11. The upper end of the adjusting screw 12 extends out of the internally threaded cylinder 11 and is rotatably connected to a U-shaped support plate 13. The U-shaped support plate 13 is movably sleeved on the outside of the regulating valve 9. In use, the adjusting screw 12 is turned, and through the threaded engagement between the adjusting screw 12 and the internally threaded cylinder 11, the adjusting screw 12 moves upward. The adjusting screw 12 drives the U-shaped support plate 13 to move upward and lock onto the regulating valve 9, thereby providing limiting support for the regulating valve 9 and preventing damage caused by excessive torque between the regulating valve 9 and the guide pipe 8 when the regulating valve 9 is opened and closed.

[0030] The adjusting screw 12 has a through hole in its wall, and a push rod 19 is fixedly inserted into the through hole. Both ends of the push rod 19 extend out of the through hole. Pushing the push rod 19 will drive the adjusting screw 12 to rotate, which improves the convenience of operation of the limit support assembly.

[0031] Both the valve body 1 and the regulating valve 9 are provided with arc-shaped directional grooves 18. The arc-shaped directional grooves 18 can mark the opening direction of the valve body 1 and the regulating valve 9, which improves the convenience of valve use.

[0032] The outer wall of the internally threaded tube 7 is provided with multiple anti-slip grooves 20. The multiple anti-slip grooves 20 are evenly distributed on the internally threaded tube 7, which can improve the surface anti-slip performance of the internally threaded tube 7 and improve the convenience of turning the internally threaded tube 7.

[0033] The valve body 1 is provided with a handle 2.

[0034] Both handle 12 and handle 210 are rounded, which improves the comfort of using handle 12 and handle 210.

[0035] Both connecting pipes 3 are fixedly fitted with connecting flanges 21, and multiple connecting holes 22 are evenly opened on the connecting flanges 21, which can improve the convenience of valve installation.

[0036] The working principle is as follows:

[0037] Tighten the adjusting screw 12. Through the threaded engagement between the adjusting screw 12 and the internal threaded cylinder 11, the adjusting screw 12 moves upward. The adjusting screw 12 drives the U-shaped support plate 13 to move upward and lock onto the regulating valve 9, thereby providing limiting support for the regulating valve 9.

[0038] When valve body 1 needs to be opened, first turn handle 10 to open regulating valve 9. Because the diameters of the two guide pipes 8 are relatively small, the pressure on regulating valve 9 is small, resulting in less resistance to opening. Through the guide pipes 8, inlet pipe 4, and outlet pipe 5, oil from one side of valve body 1 is pre-supplied to the other side, reducing the pressure difference between the two sides of valve body 1 and gradually equalizing the pressure, thus reducing the resistance when opening valve body 1. The valve can then be easily opened by turning handle 2, effectively improving the convenience of valve opening and avoiding the problem of excessive pressure difference on both sides of the valve causing significant impact on the hydraulic system, thus effectively improving the safety of the hydraulic system.

Claims

1. A valve with a differential pressure compensation structure, characterized in that: It includes a valve body (1) and a differential pressure compensation mechanism. The differential pressure compensation mechanism includes an inlet pipe (4), an outlet pipe (5), a guide pipe (8), and a regulating valve (9). The two ends of the valve body (1) are respectively connected to the inlet pipe (4) and the outlet pipe (5). The inlet pipe (4) and the outlet pipe (5) are respectively connected to the same regulating valve (9) through a guide pipe (8). A limit support assembly is provided between the regulating valve (9) and the valve body (1).

2. The valve with a differential pressure compensation structure according to claim 1, characterized in that: The limiting support assembly includes an internal threaded cylinder (11), an adjusting screw (12), and a U-shaped support plate (13). One end of the adjusting screw (12) is threaded to the internal threaded cylinder (11), which is fixed to the valve body (1). The other end of the adjusting screw (12) is rotatably connected to the U-shaped support plate (13), and the regulating valve (9) is set on the U-shaped support plate (13).

3. A valve with a differential pressure compensation structure according to claim 2, characterized in that: The adjusting screw (12) is radially connected to a push rod (19).

4. A valve with a differential pressure compensation structure according to claim 1, characterized in that: Both the inlet pipe (4) and the outlet pipe (5) are threaded with internally threaded pipes (7).

5. A valve with a differential pressure compensation structure according to claim 4, characterized in that: The outer wall of the internally threaded pipe (7) is provided with multiple anti-slip grooves (20).

6. A valve with a differential pressure compensation structure according to claim 4, characterized in that: The guide pipe (8) includes a bend (14), a branch pipe (15), an external hexagonal nut (16), and a transparent pipe (17). One end of the bend (14) is threaded to the internally threaded pipe (7), and the other end of the bend (14) is connected to the branch pipe (15) through the transparent pipe (17). The branch pipe (15) is fixedly connected to the regulating valve (9) through the external hexagonal nut (16).

7. A valve with a differential pressure compensation structure according to claim 1, characterized in that: Both the valve body (1) and the regulating valve (9) are provided with arc-shaped guide grooves (18).

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