Adjusting ball valve

Abstract

The utility model belongs to the technical field of ball valves, and particularly relates to an adjusting ball valve which comprises a valve body, a ball cap, a ball valve mechanism and a control mechanism. The ball cap is in threaded connection with the valve body; the adjusting mechanism is matched with the valve body and the control mechanism, and the ball valve mechanism comprises two valve seats and a ball valve; the ball valve is rotationally connected with the valve seat, and the ball valve and the ball seat are in sliding contact with the ball cap and the valve body; the adjusting mechanism comprises a handle sleeve, a valve rod, a pressing cap, an adjusting rod, a lead screw and an E-shaped clamping ring. The handle sleeve is rotatably connected with the valve body, the valve rod is matched with the valve body, the pressing cap is rotatably connected with the valve rod, the pressing cap is in threaded connection with the valve body, the adjusting rod is in sliding contact with the valve rod, and the lead screw is in threaded connection with the adjusting rod. The ball body is prevented from being overlooked, and the service life of the ball valve is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a regulating ball valve. Background Technology

[0002] A ball valve is a valve in which the opening and closing element (ball) is driven by the valve stem and rotates around the valve's axis. It can also be used for fluid regulation and control. Hard-seal V-type ball valves, with their V-shaped ball core and hard alloy-faced metal seat, possess strong shearing force, making them particularly suitable for media containing fibers or small solid particles. Multi-port ball valves in pipelines can flexibly control the merging, splitting, and switching of flow directions of media, and can also close any channel while connecting two other channels. These valves should generally be installed horizontally in pipelines. Ball valves are classified according to their actuation method: pneumatic ball valves, electric ball valves, and manual ball valves.

[0003] Existing regulating ball valves adjust the water flow path by adjusting the opening of the ball, which exposes the ball to the water flow. The surface of the ball is prone to corrosion, and after a long time, the ball becomes unusable. Therefore, this utility model proposes a regulating ball valve to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing ball valves adjust the water flow path by adjusting the opening of the ball, which causes the ball to be exposed to the water flow, making the surface of the ball prone to corrosion and eventually rendering the ball unusable. Therefore, this invention proposes a new type of ball valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A regulating ball valve, comprising

[0007] Valve body, ball cap, ball valve mechanism, and control mechanism;

[0008] The ball cap is threadedly connected to the valve body; the regulating mechanism cooperates with the valve body and the control mechanism respectively. The ball valve mechanism includes two valve seats and a ball valve; the ball valve is rotatably connected to the valve seats, and both the ball valve and the ball seat are in sliding contact with the ball cap and the valve body.

[0009] The adjustment mechanism includes: handle sleeve, valve stem, pressure cap, adjusting rod, lead screw and E-type retaining ring;

[0010] The handle sleeve is rotatably connected to the valve body, the valve stem is fitted to the valve body, the pressure cap is rotatably connected to the valve stem, the pressure cap is threadedly connected to the valve body, the adjusting rod is in sliding contact with the valve stem, the lead screw is threadedly connected to the adjusting rod, and the E-type retaining ring is in sliding contact with the lead screw.

[0011] Preferably, the control mechanism includes: an arm, a small scale, a large scale, an arm cover, and an electric actuator;

[0012] The arm engages with the lead screw, the small scale engages with the large scale, both the small and large scales are rotatably connected to the arm, the arm cover engages with the small scale, the large scale and the arm, and the electric actuator meshes with the lead screw.

[0013] Preferably, a gasket is fitted on the outer side of the valve stem, and the gasket slides in contact with the pressure cap.

[0014] Preferably, a first O-ring is symmetrically arranged on the inner side of the valve body, and the first O-ring slides in contact with the valve body, the ball cap and the valve seat.

[0015] Preferably, a second O-ring is fitted on the outer side of the valve stem, and the second O-ring slides in contact with the valve body. A plurality of third O-rings are fitted on the outer side of the lead screw at equal intervals, and the third O-rings slide in contact with the arm. The number of the second O-rings and the third O-rings are both three. Beneficial effects

[0016] In this invention, when the valve body is fully open, the diameter of the water flow hole is adjusted by the up-and-down extension of the adjusting rod in the water flow hole, thereby regulating the flow rate of the water flow hole, preventing the ball from being viewed from above, and increasing the service life of the ball valve. Attached Figure Description

[0017] Figure 1 This is an exploded 3D view of the manual ball valve of this utility model;

[0018] Figure 2 This is an exploded 3D view of the automatic ball valve of this utility model.

[0019] In the diagram: 1. Valve body; 2. First O-ring; 3. Valve seat; 4. Ball valve; 5. Ball cap; 6. Handle sleeve; 7. Second O-ring; 8. Valve stem; 9. Gasket; 10. Pressure cap; 11. Adjusting rod; 12. Lead screw; 13. Third O-ring; 14. E-ring; 15. Arm; 16. Small scale; 17. Large scale; 18. Arm cover; 19. Electric actuator. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0021] Reference Figure 1 A regulating ball valve, comprising

[0022] Valve body 1, ball cap 5, ball valve mechanism and control mechanism;

[0023] The ball cap 5 is threadedly connected to the valve body 1; the adjusting mechanism cooperates with the valve body 1 and the control mechanism respectively. The ball valve mechanism includes two valve seats 3 and a ball valve 4; the ball valve 4 is rotatably connected to the valve seats 3, and both the ball valve 4 and the ball seats are in sliding contact with the ball cap 5 and the valve body 1.

[0024] The adjustment mechanism includes: handle sleeve 6, valve stem 8, pressure cap 10, adjustment rod 11, lead screw 12, and E-type retaining ring 14;

[0025] The handle sleeve 6 is rotatably connected to the valve body 1, the valve stem 8 is engaged with the valve body 1, the pressure cap 10 is rotatably connected to the valve stem 8, the pressure cap 10 is threadedly connected to the valve body 1, the adjusting rod 11 is in sliding contact with the valve stem 8, the lead screw 12 is threadedly connected to the adjusting rod 11, and the E-type retaining ring 14 is in sliding contact with the lead screw 12.

[0026] Preferably, the control mechanism includes: an arm 15, a small scale 16, a large scale 17, an arm cover 18, and an electric actuator 19;

[0027] Arm 15 is engaged with lead screw 12, small scale 16 is engaged with large scale 17, both small scale 16 and large scale 17 are rotatably connected to arm 15, arm cover 18 is engaged with small scale 16, large scale 17 and arm 15, and electric actuator 19 is engaged with lead screw 12.

[0028] Preferably, a gasket 9 is fitted on the outer side of the valve stem 8, and the gasket 9 slides in contact with the pressure cap 10.

[0029] Preferably, a first O-ring 2 is symmetrically arranged on the inner side of the valve body 1, and the first O-ring 2 slides in contact with the valve body 1, the ball cap 5 and the valve seat 3.

[0030] Preferably, a second O-ring 7 is fitted on the outer side of the valve stem 8, and the second O-ring 7 slides in contact with the valve body 1. A plurality of third O-rings 13 arranged at equal intervals are fitted on the outer side of the lead screw 12, and the third O-rings 13 slide in contact with the arm 15. The number of the second O-ring 7 and the third O-ring 13 are both three.

[0031] It should be noted that the specific model of electric actuator 19 to be used is to be selected by those skilled in the art, and the electric actuator 19 and the above-mentioned electric actuators are all existing technologies, which will not be elaborated on in this solution.

[0032] The working principle of this utility model is as follows: By rotating the pressure cap 10, the lead screw 12 can be rotated, so that the lead screw 12 can push the adjusting rod 11 to be inserted into the inner side of the valve body 1, so that it can move up and down inside the valve body 1. By extending and retracting the adjusting rod 11 in the water flow hole, the diameter of the water flow hole can be adjusted, the flow rate of the water flow hole can be adjusted, the ball can be prevented from being corroded, and the service life of the ball valve 4 can be increased. Example

[0033] Reference Figure 2

[0034] The difference between this embodiment and Embodiment 1 is that the arm 15, small scale 16, large scale 17, and arm cover 18 are replaced with an electric actuator 19. By using the electric actuator 19 to drive the lead screw 12 to rotate, the lead screw 12 can push the adjusting rod 11 to be inserted into the inner side of the valve body 1, so that it can move up and down inside the valve body 1. By extending and retracting the adjusting rod 11 in the water flow hole, the diameter of the water flow hole is adjusted, the flow rate of the water flow hole is adjusted, the ball is prevented from being corroded, and the valve body 1 is automatically adjusted, increasing the service life of the ball valve 4. A temperature sensor can also be installed at the bottom of the valve body 1 for use in detecting the temperature of the valve body 1.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A regulating ball valve, comprising a valve body (1), a ball cap (5), a ball valve mechanism and a control mechanism, characterized in that: the ball cap (5) is threadedly connected with the valve body (1); the adjusting mechanism is matched with the valve body (1) and the control mechanism respectively, the ball valve mechanism comprises two valve seats (3) and a ball valve (4); the ball valve (4) is rotatably connected with the valve seat (3), and the ball valve (4) and the ball seat are in sliding contact with the ball cap (5) and the valve body (1); the adjusting mechanism comprises a handle sleeve (6), a valve rod (8), a pressing cap (10), an adjusting rod (11), a screw rod (12) and an E-shaped ring (14); the handle sleeve (6) is rotatably connected with the valve body (1), the valve rod (8) is matched with the valve body (1), the pressing cap (10) is rotatably connected with the valve rod (8), the pressing cap (10) is threadedly connected with the valve body (1), the adjusting rod (11) is in sliding contact with the valve rod (8), the screw rod (12) is threadedly connected with the adjusting rod (11), and the E-shaped ring (14) is in sliding contact with the screw rod (12).

2. A regulating ball valve according to claim 1, characterized in that the control mechanism comprises an arm (15), a small scale (16), a large scale (17), an arm cover (18) and an electric actuator (19); the arm (15) is matched with the screw rod (12), the small scale (16) is matched with the large scale (17), the small scale (16) and the large scale (17) are rotatably connected with the arm (15), the arm cover (18) is matched with the small scale (16), the large scale (17) and the arm (15), and the electric actuator (19) is engaged with the screw rod (12).

3. A regulating ball valve according to claim 1, characterized in that The outer side of the valve rod (8) is sleeved with a gasket (9), and the gasket (9) is in sliding contact with the pressing cap (10).

4. A regulating ball valve according to claim 1, characterized in that The inner side of the valve body (1) is provided with symmetrically arranged first O-rings (2), and the first O-rings (2) are in sliding contact with the valve body (1), the ball cap (5) and the valve seat (3).

5. A regulating ball valve according to claim 2, characterized in that The outer side of the valve rod (8) is sleeved with a second O-ring (7), and the second O-ring (7) is in sliding contact with the valve body (1); the outer side of the screw rod (12) is sleeved with a plurality of third O-rings (13) arranged at equal intervals, and the third O-rings (13) are in sliding contact with the arm (15); the number of the second O-rings (7) and the third O-rings (13) is three.

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