Novel stable ball valve

Abstract

The utility model provides a novel stable ball valve, and belongs to the technical field of valves. The ball valve solves the problems that a traditional ball valve is prone to leakage in the long-time and frequent operation and use process, and the safety and stability of a system are affected. The novel stable ball valve comprises a valve body and a handle assembly arranged at the top of the valve body, the two sides of the valve body are provided with a water inlet assembly and a water outlet assembly respectively, the water inlet assembly and the water outlet assembly are connected with the valve body through bolts, a cavity is formed in the valve body, and the water inlet assembly and the water outlet assembly are internally provided with a water inlet cavity and a water outlet cavity which are communicated with the cavity. A valve rod is arranged on the handle assembly, and the lower end of the valve rod is located in the cavity and connected with a valve ball. The ball valve has the advantage that the sealing performance and the stability of the ball valve are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field, especially a kind of novel stable ball valve. BACKGROUND

[0002] Ball valve, opening and closing member (ball) is driven by valve stem, and rotates around ball valve axis movement valve.The ball valve can also be used for fluid regulation and control, wherein hard sealing V-shaped ball valve has strong shearing force between V-shaped ball core and hard alloy built-up metal valve seat, and it is particularly suitable for medium containing fiber, small solid particles and the like.

[0003] Traditional ball valve is prone to leakage during long-time and frequent operation, which affects the safety and stability of the system. SUMMARY

[0004] The utility model discloses a kind of novel sealing stable ball valves to solve the above problems in prior art.

[0005] The utility model discloses a kind of novel stable ball valve, including valve body and the handle assembly being set at the top of valve body, it is characterized in that, the water inlet assembly and water outlet assembly are respectively set in the both sides of valve body, the water inlet assembly and water outlet assembly are connected with valve body by bolt, the cavity is set in the valve body, the water inlet assembly and water outlet assembly have water inlet chamber and water outlet chamber being connected with the cavity, the valve stem is set on the handle assembly, and the lower end of the valve stem is connected with valve ball in the cavity, the base for fixing ball valve is set on the cavity, the sealing ring for sealing is set between the base end and the water inlet assembly, water outlet assembly of valve body, the through-hole for fixing valve stem is set on the top of valve body, the sealing element is set on the valve stem in the through-hole, the fixed groove for being installed in fixed groove is set on the side surface of sealing element.

[0006] In the above-mentioned one kind of novel stable ball valve, the valve stem is sleeved with limit ring on the sealing element, and the limit groove for fixing limit ring is set on the sealing element.

[0007] In the above-mentioned one kind of novel stable ball valve, the switch handle for controlling the opening and closing of ball valve is set on the handle assembly, the switch handle is installed on the valve stem, the screw cap unit for fixing valve stem is set on the valve stem at the bottom of switch handle, and the clamping plate for stabilizing limit ring is set on the bottom of screw cap unit.

[0008] Compared with prior art, the novel stable ball valve adopts multiple sealing structures (such as sealing ring, sealing element, etc.), ensures the sealing property of the connection, prevents fluid leakage, and improves the stability and sealing property of the valve body. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the new type of stable ball valve.

[0010] Figure 2 This is a cross-sectional view of the new type of stable ball valve.

[0011] Figure 3 This is a partial cross-sectional view of the novel stable ball valve.

[0012] In the diagram, 1. Valve body; 2. Handle assembly; 3. Inlet assembly; 4. Outlet assembly; 5. Bolt; 6. Cavity; 7. Inlet chamber; 8. Outlet chamber; 9. Valve stem; 10. Valve ball; 11. Base; 12. Sealing ring; 13. Through hole; 14. Seal; 15. Fixing groove; 16. Fixing part; 17. Limiting ring; 18. Limiting groove; 19. Switch handle; 20. Nut unit; 21. Clamping plate. Detailed Implementation

[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0014] like Figure 1 , Figure 2 , Figure 3 As shown, this novel stable ball valve includes a valve body 1 and a handle assembly 2 disposed on the top of the valve body 1. An inlet assembly 3 and an outlet assembly 4 are respectively disposed on both sides of the valve body 1, and are connected to the valve body 1 by bolts 5. A cavity 6 is provided inside the valve body 1. The inlet assembly 3 and the outlet assembly 4 have inlet chambers 7 and 8 communicating with the cavity 6. A valve stem 9 is disposed on the handle assembly 2, and the lower end of the valve stem 9 is located inside the cavity 6 and connected to a valve ball 10. The valve stem 9 on the handle assembly 2 extends into the cavity 6 through a through hole 13 at the top of the valve body 1 and is connected to the valve ball 10. The valve design ensures that when the handle assembly 2 is rotated, the valve ball 10 can rotate accordingly, realizing fluid flow control. A device for fixing the ball is provided on the cavity 6. The valve base 11 has a sealing ring 12 at its end located between the valve body 1 and the inlet assembly 3 and outlet assembly 4. The valve body 1 has a through hole 13 for fixing the valve stem 9. A sealing element 14 is fitted on the valve stem 9 at the through hole 13. The design of the sealing element 14 ensures the sealing between the valve stem 9 and the through hole 13 to prevent fluid leakage. Symmetrical fixing grooves 15 are opened on the inner wall of the through hole 13. The side of the sealing element 14 is provided with a fixing part 16 for installation in the fixing groove 15. The side of the sealing element 14 is provided with a fixing part 16 for installation in the fixing groove 15 to ensure the stable installation and sealing effect of the sealing element 14 in the through hole 13.

[0015] Further, the valve rod 9 is sleeved with a limiting ring 17 on the sealing member 14, the sealing member 14 is provided with a limiting groove 18 for fixing the limiting ring 17, and the structure design of the limiting ring 17 and the limiting groove 18 enhances the connection stability between the valve rod 9 and the sealing member 14, preventing the axial displacement of the sealing member 14 during the movement of the valve rod 9.

[0016] Further, the handle assembly 2 is provided with a switch handle 19 for controlling the opening and closing of the ball valve, the switch handle 19 is installed on the valve rod 9, the valve rod 9 is provided with a nut unit 20 for fixing the valve rod 9 at the bottom of the switch handle 19, and the nut unit 20 is provided with a clamping plate 21 for fixing the limiting ring 17.

[0017] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0018] Although the terms such as valve body 1, handle assembly 2, water inlet assembly 3, water outlet assembly 4, bolt 5, cavity 6, water inlet cavity 7, water outlet cavity 8, valve rod 9, valve ball 10, base 11, sealing ring 12, through hole 13, sealing member 14, fixing groove 15, fixing part 16, limiting ring 17, limiting groove 18, switch handle 19, nut unit 20, clamping plate 21 are used more frequently herein, but the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the present application; any additional limitation is contrary to the spirit of the present application.

Claims

1. A new type of stable ball valve comprising a valve body (1) and a handle assembly (2) provided on the top of the valve body (1), characterized in that, The valve body (1) is provided with water inlet assembly (3) and water outlet assembly (4) on both sides, the water inlet assembly (3) and water outlet assembly (4) are connected with valve body (1) through bolt (5), the valve body (1) is provided with cavity (6), the water inlet assembly (3) and water outlet assembly (4) have water inlet cavity (7) and water outlet cavity (8) that communicate with cavity (6), the handle assembly (2) is provided with valve stem (9), and the lower end of the valve stem (9) is connected with valve ball (10) in cavity (6), the cavity (6) is provided with base (11) for fixing ball valve, the base (11) end is located between valve body (1) and water inlet assembly (3), water outlet assembly (4) and is provided with sealing ring (12) for sealing, the valve body (1) top is provided with through hole (13) for fixing valve stem (9), the valve stem (9) is provided with sealing element (14) on the through hole (13), the through hole (13) inner wall is provided with symmetrical fixed groove (15), the sealing element (14) side is provided with fixed part (16) for installing in fixed groove (15).

2. A new stable ball valve according to claim 1, characterized in that, The valve stem (9) is provided with limiting ring (17) on the sealing element (14), the sealing element (14) is provided with limiting groove (18) for fixing limiting ring (17).

3. A new stable ball valve according to claim 2, characterized in that, The handle assembly (2) is provided with switch handle (19) for controlling the opening and closing of ball valve, the switch handle (19) is installed on the valve stem (9), the valve stem (9) is provided with nut unit (20) for fixing valve stem (9) on the bottom of switch handle (19), the nut unit (20) bottom is provided with clamping plate (21) for stabilizing limiting ring (17).

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