Flow-controllable high-pressure ball valve

Abstract

The utility model discloses a controllable flow high-pressure ball valve which comprises a valve box, a sealing ball is arranged in the valve box, and a first sealing gasket and a second sealing gasket are tightly attached to the outer surface of the sealing ball in a contact mode. The diameters of openings in the two sides of the through-flow groove are different, when the flow needs to be adjusted from small to large, the sealing ball can be rotated clockwise to enable the minimum opening end of the through-flow groove to be rapidly aligned with the flow inlet, the sealing ball is rotated clockwise according to the flow from small to large, and when the direct rapid maximum flow needs to be achieved, the sealing ball can be rotated anticlockwise to adjust the flow from small to large. The maximum opening end of the through-flow groove is rapidly aligned with the flow inlet, the sealing ball is rotated according to the flow from large to small, the sealing ball and the through-flow groove can achieve the needed flow with the minimum moving amplitude, and therefore the friction time between the sealing ball and the first sealing gasket and the friction time between the sealing ball and the second sealing gasket are shortened, and the service life of the sealing ball is prolonged. Therefore, the service life of the first sealing gasket and the second sealing gasket is prolonged, and the problem that the surfaces of the sealing gaskets are damaged due to long-time friction, and then liquid leakage is caused is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure ball valves, in particular to a controllable-flow high-pressure ball valve. Background Art

[0002] A ball valve is a valve used to control the flow of fluids. The ball valve can be opened or closed as needed to control the flow rate of the fluid medium in the pipeline. In hydraulic and pneumatic systems, it is usually used to control pressure and flow rate. When it is necessary to stop the transmission of the fluid medium, the ball valve can be completely closed to achieve a blocking function. This ability enables the ball valve to quickly cut off the fluid medium in the pipeline in case of emergency, ensuring the safety of the system.

[0003] What is in direct contact with the ball valve is a rubber gasket. Conventional ball valves usually have straight-line slots. Although these slots can increase or decrease the liquid flow rate according to the moving amplitude, under high-pressure conditions, long-term friction will cause damage to the surface of the gasket, leading to liquid leakage. To solve this technical problem, the utility model proposes a controllable-flow high-pressure ball valve. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a controllable-flow high-pressure ball valve, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] The controllable-flow high-pressure ball valve includes a valve box. Inside the valve box, there is a sealing ball. On the outer surface of the sealing ball, there are sealing gasket one and sealing gasket two in contact. Inside the sealing ball, there is a flow-through groove. The opening diameters on both sides of the flow-through groove are different, and one side of the flow-through groove gradually narrows towards the other side.

[0007] Preferably, an inlet and an outlet are provided on the inner side of the valve box. A sealing plate is fixedly installed on the inner side wall of the valve box at the inlet. The inner wall of the sealing plate is fixedly installed with the outer surface of the sealing gasket one.

[0008] Preferably, a reinforcing sleeve one is fixedly installed on the outer surface of the valve box at the inlet. An inlet pipe is threadedly connected inside the reinforcing sleeve one. An inward concave opening is provided inside the sealing gasket one. The outer surface of the inward concave opening is in contact with the outer surface of the sealing ball.

[0009] Preferably, the inner side wall of the valve box at the outlet is fixedly installed with the outer surface of the sealing gasket two. The outer surface of the sealing gasket two is in contact with the outer surface of the sealing ball. A threaded sleeve is fixedly installed on the outer surface of the valve box at the outlet. An outlet pipe is threadedly connected inside the threaded sleeve.

[0010] Preferably, a rotating rod is rotatably connected to the inner wall of the valve box. The outer surface of the rotating rod inside the valve box is fixedly installed with the outer surface of the sealing ball. A sealing ring is rotatably connected to the outer surface of the rotating rod, and the sealing ring is fixedly installed on the outer surface of the valve box where the rotating rod is located.

[0011] Preferably, a scale is provided on the outer surface of one of the sealing rings. A handle is fixedly installed on the outer surface of the rotating rod, and a pointer is fixedly installed on the outer surface of the handle.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, through the cooperation between the valve box, the sealing ball, the first sealing gasket, the second sealing gasket and the flow-through groove, the diameters of the two openings on both sides of the flow-through groove are different, and one side of the flow-through groove gradually narrows towards the other side. When it is necessary to adjust the flow rate from small to large, the sealing ball can be rotated clockwise to quickly align the smallest opening end of the flow-through groove with the inlet port, and the sealing ball can be rotated clockwise according to the flow rate from small to large. When it is necessary to directly obtain the maximum flow rate quickly, the sealing ball can be rotated counterclockwise to quickly align the largest opening end of the flow-through groove with the inlet port, and the sealing ball can be rotated according to the flow rate from large to small. Compared with a conventional ball valve, the sealing ball and the flow-through groove can achieve the required flow rate with the smallest movement amplitude, thereby reducing the friction time between the sealing ball and the first sealing gasket and the second sealing gasket, and thus extending the service life of the first sealing gasket and the second sealing gasket, solving the problem that long-term friction will cause damage to the surface of the sealing gasket, and further resulting in liquid leakage.

[0014] In the utility model, through the cooperation between the scale, the handle, the rotating rod and the pointer, since the sealing ball is inside the valve box, the flow rate can only be measured by the speed of the liquid flowing outwards. The handle can drive the rotating rod and the pointer, and when the rotating rod rotates, the pointer can also rotate. At this time, the flow rate can be directly and intuitively known through the scale pointed by the pointer, making the device more convenient to use.

[0015] In the utility model, through the cooperation between the first sealing gasket, the sealing plate and the inlet port, the sealing plate can reinforce the first sealing gasket at the inlet port, so that the first sealing gasket can withstand the high-pressure impact from the inlet port for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the controllable flow high-pressure ball valve of the utility model;

[0017] Figure 2 is a schematic diagram of the overall internal three-dimensional structure of the controllable flow high-pressure ball valve of the utility model;

[0018] Figure 3This is a schematic diagram of the overall internal planar structure of the controllable flow high-pressure ball valve of the present utility model;

[0019] Figure 4 This is a schematic diagram of the overall disassembly of the sealing ball of the controllable flow high-pressure ball valve of the present utility model;

[0020] Figure 5 This is a schematic diagram of the pointer and scale of the controllable flow high-pressure ball valve of the present utility model.

[0021] In the figure: 1. Valve box; 2. Sealing ball; 3. First sealing gasket; 4. Second sealing gasket; 5. Inlet port; 6. Outlet port; 7. Sealing plate; 8. First reinforcing sleeve; 9. Inlet pipe; 10. Concave opening; 11. Threaded sleeve; 12. Outlet pipe; 13. Rotating rod; 14. Sealing ring; 15. Scale; 16. Handle; 17. Pointer; 18. Flow-through groove. Detailed implementation manners

[0022] To make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0023] As Figures 1-5 shown, the controllable flow high-pressure ball valve includes a valve box 1. Inside the valve box 1, there is a sealing ball 2. The outer surface of the sealing ball 2 is in contact with and closely adheres to a first sealing gasket 3 and a second sealing gasket 4. Inside the sealing ball 2, there is a flow-through groove 18. The diameters of the openings on both sides of the flow-through groove 18 are different, and one side of the flow-through groove 18 gradually shrinks towards the other side. When it is necessary to adjust the flow from small to large, the sealing ball 2 can be rotated clockwise so that the smallest opening end of the flow-through groove 18 quickly aligns with the inlet port 5, and the sealing ball 2 is rotated clockwise according to the flow from small to large. When it is necessary to directly obtain the maximum flow quickly, the sealing ball 2 can be rotated counterclockwise so that the largest opening end of the flow-through groove 18 quickly aligns with the inlet port 5, and the sealing ball 2 is rotated according to the flow from large to small. Compared with a conventional ball valve, the sealing ball 2 and the flow-through groove 18 can achieve the required flow with the smallest movement amplitude, thereby reducing the friction time between the sealing ball 2 and the first sealing gasket 3 and the second sealing gasket 4, and thus extending the service life of the first sealing gasket 3 and the second sealing gasket 4, solving the problem that long-term friction will cause damage to the surface of the sealing gasket, and further resulting in liquid leakage.

[0024] Inside the valve box 1, there are an inlet port 5 and an outlet port 6. On the inner side wall of the valve box 1 at the inlet port 5, there is a fixedly installed sealing plate 7. The inner wall of the sealing plate 7 is fixedly installed with the outer surface of the first sealing gasket 3. The sealing plate 7 can reinforce the first sealing gasket 3 at the inlet port 5, so that the first sealing gasket 3 can continuously withstand the high-pressure impact from the inlet port 5.

[0025] A reinforcing sleeve one 8 is fixedly installed on the outer surface of the valve box 1 at the inlet port 5. The inlet pipe 9 is threadedly connected to the inner side of the reinforcing sleeve one 8. An inner concave opening 10 is formed on the inner side of the sealing gasket one 3. The outer surface of the inner concave opening 10 is in close contact with the outer surface of the sealing ball 2. The reinforcing sleeve can be connected to the surface and inner wall of the inlet pipe 9, which can prevent the liquid in the inlet pipe 9 from leaking under the long-term high-pressure state. The inner concave opening 10 can increase the contact area with the surface of the sealing ball 2, making the sealing effect better.

[0026] The inner side wall of the valve box 1 at the outlet port 6 is fixedly installed with the outer surface of the sealing gasket two 4. The outer surface of the sealing gasket two 4 is in close contact with the outer surface of the sealing ball 2. A threaded sleeve 11 is fixedly installed on the outer surface of the valve box 1 at the outlet port 6. The outlet pipe 12 is threadedly connected to the inner side of the threaded sleeve 11. The threaded sleeve 11 can be connected to the outer surface and inner wall of the outlet pipe 12. The sealing gasket two 4 can cooperate with the sealing gasket one 3 to prevent the sealing ball 2 from shifting due to the long-term impact of high-pressure liquid.

[0027] A rotating rod 13 is rotatably connected to the inner wall of the valve box 1. The outer surface of the rotating rod 13 inside the valve box 1 is fixedly installed with the outer surface of the sealing ball 2. A sealing ring 14 is rotatably connected to the outer surface of the rotating rod 13. The sealing ring 14 is fixedly installed on the outer surface of the valve box 1 where the rotating rod 13 is located. The sealing ring 14 can seal the gap between the valve box 1 and the rotating rod 13. When the rotating rod 13 rotates, it can drive the sealing ball 2 to rotate, providing a function of power conduction for the sealing ball 2.

[0028] A scale 15 is formed on the outer surface of one of the sealing rings 14. A handle 16 is fixedly installed on the outer surface of the rotating rod 13. A pointer 17 is fixedly installed on the outer surface of the handle 16. Since the sealing ball 2 is inside the valve box 1, the flow rate can only be measured by the speed of the liquid flowing out. By rotating the handle 16, the rotating rod 13 and the pointer 17 can be driven. When the rotating rod 13 rotates, the pointer 17 also rotates. At this time, the flow rate can be directly and intuitively known through the scale 15 pointed by the pointer 17, making the device more convenient to use.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. Controllable flow high pressure ball valve, characterized by: The invention comprises a valve box (1), wherein a sealing ball (2) is arranged inside the valve box (1), and the outer surface of the sealing ball (2) is in close contact with a sealing gasket 1 (3) and a sealing gasket 2 (4), and a flow groove (18) is provided on the inner side of the sealing ball (2), and the opening diameters on both sides of the flow groove (18) are different, and the flow groove (18) gradually decreases from one side to the other side.

2. The controllable flow high-pressure ball valve according to claim 1, characterized in that: An inlet (5) and an outlet (6) are provided on the inner side of the valve box (1); a sealing plate (7) is fixedly mounted on the inner side wall of the valve box (1) located at the inlet (5); the inner wall of the sealing plate (7) is fixedly mounted to the outer surface of the sealing gasket (3).

3. The controllable flow high-pressure ball valve according to claim 2, characterized in that: The valve box (1) is fixedly provided with a reinforcing sleeve (8) on the outer surface of the inlet (5); the inner side of the reinforcing sleeve (8) is threadedly connected with an inlet pipe (9); the inner side of the sealing gasket (3) is provided with an inner concave opening (10); the outer surface of the inner concave opening (10) is in close contact with the outer surface of the sealing ball (2).

4. The controllable flow high-pressure ball valve according to claim 2, characterized in that: The inner wall of the valve box (1) located at the outlet (6) is fixedly mounted to the outer surface of the second sealing gasket (4), the outer surface of the second sealing gasket (4) is in close contact with the outer surface of the sealing ball (2), and a threaded sleeve (11) is fixedly mounted on the outer surface of the valve box (1) located at the outlet (6), and the inner side of the threaded sleeve (11) is threadedly connected to the outlet pipe (12).

5. The controllable flow high-pressure ball valve according to claim 1, characterized in that: The inner wall of the valve box (1) is rotatably connected to a rotating rod (13); the outer surface of the rotating rod (13) located inside the valve box (1) is fixedly mounted to the outer surface of the sealing ball (2); the outer surface of the rotating rod (13) is rotatably connected to a sealing ring (14); the sealing ring (14) is fixedly mounted on the outer surface of the rotating rod (13) of the valve box (1).

6. The controllable flow high-pressure ball valve according to claim 5, characterized in that: A scale (15) is provided on the outer surface of one of the sealing rings (14), a handle (16) is fixedly mounted on the outer surface of the rotating rod (13), and a pointer (17) is fixedly mounted on the outer surface of the handle (16).

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