Integrated cutting sleeve type three-way ball valve with drainage function

Abstract

The integrated cutting sleeve type three-way ball valve with the drainage function comprises a valve body, a three-way valve ball and a drainage assembly, the three-way valve ball is installed in an inner cavity of the valve body, and the left end of the valve body is communicated with the drainage assembly; the drainage assembly comprises a drainage end, the drainage end is communicated with the left end of the valve body, a drainage core is in threaded connection with the interior of an inner cavity of the left end of the valve body, a core pressing cap is installed at the left end of the valve body, an O-shaped ring is installed between the core pressing cap and the drainage core, an O-shaped sealing ring is installed at the right end of the drainage core, and the drainage core is connected with the drainage end. And a limiting plate is mounted on the left side of the O-shaped sealing ring. The problems that some existing ball valves in the current market are incomplete in function in the using process, especially when the ball valves are in use, the pressure of flowing liquid is increased, and the ball valves cannot be closed, the increased fluid pressure easily causes damage to valve elements of the ball valves, and the service life of the ball valves is shortened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a three-way ball valve with a drainage integrated sleeve. Background Art

[0002] A ball valve is a valve whose opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can be used for regulating and controlling fluids. Ball valves are widely used in oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industries, and occupy a pivotal position in the national economy.

[0003] Some ball valves currently available on the market do not function perfectly during use. In particular, when the pressure of the liquid flowing through the ball valve increases and the ball valve cannot be closed, the increased fluid pressure can easily damage the ball valve core, reducing the service life of the ball valve.

[0004] In order to solve the above problems, the present application proposes a three-way ball valve with integrated drainage sleeve. Utility Model Content

[0005] In response to the problems in the related technology, the utility model provides a three-way ball valve with an integrated drainage sleeve, which can disperse the pressure in time when the fluid pressure increases during use, avoid damaging the valve core, and increase the service life of the ball valve.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A three-way ball valve with integrated drainage sleeve, comprising a valve body, a three-way valve ball and a drainage assembly, wherein the bottom end of the valve body is threadedly connected with a valve cap, the bottom end of the valve cap is installed with a union cap, a three-way valve ball is installed in the inner cavity of the valve body, a valve stem is installed at the top end of the three-way valve ball, a handle is installed after the valve stem passes through the valve body, a pipe cap is threadedly connected to the top end of the valve body, and the left end of the valve body is connected with a drainage assembly;

[0008] The drainage assembly includes a drainage end, which is connected to the left end of the valve body, and a drainage core is threadedly connected in the inner cavity of the left end of the valve body, a core pressure cap is installed on the left end of the valve body, an O-ring is installed between the core pressure cap and the drainage core, and an O-ring is also installed between the core pressure cap and the inner wall of the left end of the valve body, an O-ring is installed on the right end of the drainage core, and a limit plate is installed on the left side of the O-ring.

[0009] As a further solution of the utility model, the handle is installed on the top end of the valve stem through a locking cap.

[0010] As a further solution of the utility model, a flat gasket is installed between the union cap and the bottom end of the valve cap.

[0011] As a further solution of the utility model, a rubber pad is installed between the pipe cap and the top end of the valve body.

[0012] As a further solution of the utility model, a valve stem sealing ring is installed between the valve stem and the valve body.

[0013] As a further solution of the utility model, a first pressing cap is further installed between the valve stem and the valve body, and the bottom end of the first pressing cap is filled with filler.

[0014] As a further solution of the utility model, a sealing gasket is installed between the three-way valve ball and the inner wall of the valve body.

[0015] The beneficial effects of the utility model are:

[0016] The utility model cooperates with the valve body, three-way valve ball and drainage component that are arranged. When the pressure of the liquid flowing through the valve body increases and needs to be dispersed, the user uses a tool to screw the drainage core out for a distance, and the liquid enters the drainage end through the left end of the valve body, thereby completing the pressure dispersion operation. Therefore, when the fluid pressure of the ball valve increases during use, the pressure can be dispersed in time to avoid damage to the valve core and increase the service life of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a drainage assembly of a three-way ball valve with a drainage integrated sleeve according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the matching of the valve stem and valve body of a three-way ball valve with integrated drainage sleeve according to an embodiment of the utility model.

[0020] In the figure:

[0021] 1. Valve body; 2. Three-way valve ball; 3. Drain assembly; 4. Valve bonnet; 5. Union cap; 6. Valve stem; 7. Handle; 8. Pipe cap; 9. Drain end; 10. Drain core; 11. Core pressure cap; 12. O-ring; 13. O-ring; 14. Limit plate; 15. Lock cap; 16. Flat gasket; 17. Ferrule; 18. Valve stem sealing ring; 19. First pressure cap; 20. Packing; 21. Sealing gasket. DETAILED DESCRIPTION

[0022] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] According to an embodiment of the utility model, a three-way ball valve with integrated drainage sleeve is provided.

[0024] Please refer to the instruction manual Figure 1-2 According to the embodiment of the utility model, the three-way ball valve with integrated drainage sleeve includes a valve body 1, a three-way valve ball 2 and a drainage assembly 3. The bottom end of the valve body 1 is threadedly connected with a valve cap 4, and a union cap 5 is installed at the bottom end of the valve cap 4. A flat gasket 16 is installed between the union cap 5 and the bottom end of the valve cap 4. A three-way valve ball 2 is installed in the inner cavity of the valve body 1, and a sealing gasket 21 is installed between the three-way valve ball 2 and the inner wall of the valve body 1. A valve stem 6 is installed at the top of the three-way valve ball 2, and a handle 7 is installed after the valve stem 6 passes through the valve body 1. A pipe cap 8 is threadedly connected to the top of the valve body 1, and the pipe cap 8 is connected to the inner wall of the valve body 1. A ferrule 17 is installed between the top and bottom of the valve body 1, and the left end of the valve body 1 is connected to a drainage component 3; the drainage component 3 includes a drainage end 9, which is connected to the left end of the valve body 1, and a drainage core 10 is threadedly connected in the inner cavity of the left end of the valve body 1, and a core pressure cap 11 is installed at the left end of the valve body 1, an O-ring 12 is installed between the core pressure cap 11 and the drainage core 10, and an O-ring 12 is also installed between the core pressure cap 11 and the inner wall of the left end of the valve body 1, an O-ring 13 is installed at the right end of the drainage core 10, and a limiting plate 14 is installed on the left side of the O-ring 13. By means of the coordinated work of the valve body 1, the three-way valve ball 2 and the drainage assembly 3, when the pressure of the liquid flowing through the valve body 1 increases and needs to be dispersed, the user uses a tool to unscrew the drainage core 10 for a certain distance, and the liquid enters the drainage end 9 through the left end of the valve body 1, thus completing the pressure dispersion operation. As a result, when the fluid pressure increases during the use of the ball valve, the pressure can be dispersed in time to avoid damage to the valve core and increase the service life of the ball valve.

[0025] In one embodiment, please refer to the attached manual. Figure 2 As a further solution of the utility model, the handle 7 is installed on the top of the valve stem 6 through the lock cap 15. The provided handle 7 can not only conveniently control the switch of the ball valve, but also can facilitate the maintenance and disassembly of the handle 7 by installing the lock cap 15 on the top of the valve stem 6.

[0026] In one embodiment, please refer to the attached manual. Figure 2As a further solution of the utility model, a valve stem sealing ring 18 is installed between the valve stem 6 and the valve body 1, and a first pressure cap 19 is also installed between the valve stem 6 and the valve body 1, and the bottom end of the first pressure cap 19 is filled with a packing 20. The valve stem sealing ring 18 can improve the sealing between the valve stem 6 and the inner wall of the valve body 1, and the first pressure cap 19 and the packing 20 also play an auxiliary role.

[0027] Working process: During use, when the pressure of the liquid flowing through the valve body 1 increases and needs to be dispersed, the user uses a tool to unscrew the drain core 10 for a distance, and the liquid enters the drain end 9 through the left end of the valve body 1, and the pressure dispersion operation is completed. After completion, the drain core 10 is screwed into the left end of the valve body 1 until the limit plate 14 reaches the predetermined position.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-way ball valve with integrated drainage sleeve, comprising a valve body (1), a three-way valve ball (2) and a drainage assembly (3), characterized in that: The bottom end of the valve body (1) is threadedly connected to a valve cap (4), the bottom end of the valve cap (4) is installed with a union cap (5), a three-way valve ball (2) is installed in the inner cavity of the valve body (1), a valve stem (6) is installed at the top end of the three-way valve ball (2), a handle (7) is installed after the valve stem (6) passes through the valve body (1), the top end of the valve body (1) is threadedly connected to a pipe cap (8), and the left end of the valve body (1) is connected to a drainage assembly (3); The drainage assembly (3) comprises a drainage end (9), the drainage end (9) is connected to the left end of the valve body (1), and a drainage core (10) is threadedly connected in the inner cavity of the left end of the valve body (1), a core pressure cap (11) is installed at the left end of the valve body (1), an O-ring (12) is installed between the core pressure cap (11) and the drainage core (10), and an O-ring (12) is also installed between the core pressure cap (11) and the inner wall of the left end of the valve body (1), an O-ring (13) is installed at the right end of the drainage core (10), and a limit plate (14) is installed on the left side of the O-ring (13).

2. The three-way ball valve with integrated drainage sleeve according to claim 1, characterized in that: The handle (7) is mounted on the top end of the valve stem (6) via a locking cap (15).

3. The three-way ball valve with integrated drainage sleeve according to claim 1, characterized in that: A flat gasket (16) is installed between the joint cap (5) and the bottom end of the valve cap (4).

4. The three-way ball valve with integrated drainage sleeve according to claim 1, characterized in that: A ferrule (17) is installed between the pipe cap (8) and the top end of the valve body (1).

5. The three-way ball valve with integrated drainage sleeve according to claim 1, characterized in that: A valve stem sealing ring (18) is installed between the valve stem (6) and the valve body (1).

6. The three-way ball valve with integrated drainage sleeve according to claim 1, characterized in that: A first pressing cap (19) is also installed between the valve stem (6) and the valve body (1), and the bottom end of the first pressing cap (19) is filled with filler (20).

7. The three-way ball valve with integrated drainage sleeve according to claim 1, characterized in that: A sealing gasket (21) is installed between the three-way valve ball (2) and the inner wall of the valve body (1).

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