A pipeline ball valve

Abstract

The utility model discloses a kind of pipeline ball valves, it includes valve body, ball valve body is installed in valve body middle part by pivot, and the top of ball valve body is provided with clamping groove, valve stem matched with clamping groove is provided in valve body interior, and installation groove is opened in the inside lower end of clamping groove, electrically-conductive spring is installed in installation groove interior, and the outside of electrically-conductive spring is provided with anti-static mechanism, valve stem extends to the outside of valve body, and the outside of valve stem is located at the top of valve body and is fixedly installed with fixed frame, movable shaft is installed in fixed frame interior, and auxiliary transmission mechanism is provided in the outside of movable shaft, support base is provided below valve body, and adjustable support frame is provided in support base interior, support frame is connected to valve body by bolt in upper portion, using the utility model, the power structure when opening and closing operation is realized using rotating motor and installation auxiliary lifting drops, reliable anti-static function is simultaneously possessed, overall structure is more practical.

Description

Technical Field

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

[0002] In industrial pipeline systems, ball valves are a commonly used and critical fluid control device. Because they are often used to control large pipelines, their valve bodies are also relatively large in size. The installation of ball valves and connecting pipes is a major project. When opening and closing, operators or other equipment need to apply a large torque. Especially in some high-pressure, large-diameter pipeline systems, the opening and closing of ball valves is a major operation. Secondly, after ball valves have been used for a long time, static charge may be generated due to the flow and friction of the medium. If the static charge is not treated, when the static voltage reaches a certain level, electrostatic discharge may occur. Utility Model Content

[0003] This utility model proposes a pipeline ball valve with an assist structure and an anti-static mechanism, which solves the problems of inconvenient installation and operation of existing pipeline ball valves, as well as the lack of anti-static features.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A pipeline ball valve includes a valve body, a ball valve body mounted on the middle of the valve body via a rotating shaft, and a snap-fit ​​groove opened on the top of the ball valve body. A valve stem matching the snap-fit ​​groove is provided inside the valve body, and an installation groove is opened inside the lower end of the snap-fit ​​groove. A conductive spring is installed inside the installation groove, and an anti-static mechanism is provided on the outside of the conductive spring.

[0006] The valve stem extends to the outside of the valve body, and a fixed frame is fixedly installed on the outside of the valve stem at the top of the valve body. A movable shaft is installed inside the fixed frame, and an auxiliary transmission mechanism is provided on the outside of the movable shaft.

[0007] A support base is provided below the valve body, and an adjustable support frame is provided inside the support base. The support frame is bolted to the valve body.

[0008] Preferably, connecting flanges are fixedly installed on both sides of the valve body, and an inlet pipe and an outlet pipe are installed on the side of the connecting flanges by bolts.

[0009] Preferably, the antistatic mechanism includes a movable groove and a conductive pad, and the valve stem is snapped into the groove by a conductive spring. A conductive pad is fixedly connected to the outside of the valve stem above the conductive spring, and a movable groove matching the conductive pad is provided inside the valve body.

[0010] Preferably, the valve body has an internal groove that matches the conductive gasket, and the outer surface of the valve body is coated with a conductive coating.

[0011] Preferably, the auxiliary transmission mechanism includes a driving bevel gear, a driven bevel gear, a half gear, a driven gear, a drive motor, a transmission handle, and a reducer. The driven bevel gear is installed inside the fixed frame on the outer side of the valve stem, and a driving bevel gear is installed on the outer side of the movable shaft at one end. The driving bevel gear and the driven bevel gear are meshed together.

[0012] Preferably, a transmission grip is installed on the outer side of the other end of the movable shaft, and a driven gear is installed on the outer side of the movable shaft on the side of the driving bevel gear.

[0013] Preferably, a drive motor is fixedly installed inside the fixed frame, and a reducer is connected to the side of the drive motor. A half gear is connected to the output end of the reducer, and the half gear meshes with the driven gear.

[0014] Preferably, a controller is connected to the side of the drive motor, and a cover plate is bolted to the top of the fixing frame.

[0015] Preferably, the support base has multiple sets of mounting holes inside, and an electric cylinder is installed in the middle of the support base.

[0016] Preferably, the support base has sliding grooves on both sides that match the support frame, and the support frame is fitted inside the sliding grooves in a movable connection, with the movable end of the electric cylinder fixedly connected to the middle of the support frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This pipeline ball valve structure uses an auxiliary transmission mechanism located on the outside of the movable shaft. When the transmission handle needs to be rotated, the drive motor can be started by the controller to assist in the operation. The operator only needs to hold the transmission handle to complete the opening and closing of the ball valve body, which improves the convenience of operation.

[0019] 2. In this utility model, a conductive spring is installed between the ball valve body and the valve stem to maintain a good electrical connection between the ball and the valve stem. At the same time, a conductive gasket is installed between the valve stem and the valve body to conduct the static charge on the valve stem to the valve body. The valve body is connected to the ground through a support base to conduct the static charge to the ground, thus achieving anti-static properties.

[0020] 3. An electric cylinder is installed in the middle of its support base. The electric cylinder drive can control the lifting height of the valve body as needed. The support frame is used to fix the valve body and ensure its stability during the lifting process. At the same time, during the installation process, the operator can raise the electric cylinder to align the inlet pipe with the outlet pipe and connecting pipe, and then tighten the connection, which simplifies the installation process. Attached Figure Description

[0021] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0024] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0025] Figure 5 This is a schematic diagram of the ball valve body and valve stem structure of this utility model.

[0026] Figure 6 This is a schematic diagram of the half gear and driven gear structure of this utility model.

[0027] Figure 7 This is a control flowchart for the auxiliary transmission mechanism of this utility model.

[0028] The following are the labeling elements in the diagram: 1. Valve body; 2. Ball valve body; 3. Snap-fit ​​groove; 4. Valve stem; 5. Mounting groove; 6. Conductive spring; 7. Fixed frame; 8. Movable shaft; 9. Support base; 10. Support frame; 11. Connecting flange; 12. Inlet pipe; 13. Outlet pipe; 14. Movable groove; 15. Conductive gasket; 16. Driving bevel gear; 17. Driven bevel gear; 18. Half gear; 19. Driven gear; 20. Drive motor; 21. Transmission handle; 22. Reducer; 23. Controller; 24. Cover plate; 25. Mounting hole; 26. Electric cylinder; 27. Slide groove. Detailed Implementation

[0029] 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.

[0030] Example 1

[0031] Reference Figures 1-7This utility model provides a technical solution: a pipeline ball valve, including a valve body 1, the valve body 1 being cylindrical in shape, a ball valve body 2 mounted on the middle of the valve body 1 via a rotating shaft, and a snap-fit ​​groove 3 on the top of the ball valve body 2, a valve stem 4 matching the snap-fit ​​groove 3 inside the valve body 1, and an installation groove 5 inside the lower end of the snap-fit ​​groove 3, a conductive spring 6 installed inside the installation groove 5, and an anti-static mechanism on the outside of the conductive spring 6, the valve stem 4 extending to the outside of the valve body 1, and a fixing frame 7 fixedly mounted on the outside of the valve stem 4 at the top of the valve body 1, a movable shaft 8 installed inside the fixing frame 7, and an auxiliary transmission mechanism on the outside of the movable shaft 8, a support base 9 below the valve body 1, and an adjustable support frame 10 inside the support base 9, the support frame 10 being bolted to the valve body 1.

[0032] Reference Figure 1 , Figure 2 The valve body 1 has connecting flanges 11 fixedly installed on both sides, and the connecting flanges 11 are bolted to the sides to install inlet pipe 12 and outlet pipe 13. The support base 9 has multiple sets of mounting holes 25 inside, and an electric cylinder 26 is installed in the middle of the support base 9. The support base 9 has sliding grooves 27 on both sides that match the support frame 10, and the support frame 10 is fitted into the sliding grooves 27 in a movable connection. The movable end of the electric cylinder 26 is fixedly connected to the middle of the support frame 10.

[0033] When installing the pipeline ball valve, the support base 9 can be tightly connected to the ground through the mounting hole 25 (fixing holes are pre-drilled in the ground or holes are drilled in the ground for installation with expansion bolts). After fixing the support base 9, the electric cylinder 26 is activated according to the height of the connecting pipe. The electric cylinder 26 extends and retracts the support frame 10, causing the support frame 10 to move up and down along the inner wall of the slide groove 27. Since the upper part of the support frame 10 is connected to the valve body 1 by bolts, the height of the valve body 1 can be adjusted. After adjusting to a suitable height, the inlet pipe 12, outlet pipe 13 and connecting pipe on both sides of the valve body 1 are aligned, and the pipeline ball valve is tightly connected to the connecting pipe, which simplifies the installation process and improves the installation efficiency.

[0034] Example 2

[0035] Reference Figure 2 , Figure 5 This embodiment is an optimization based on Embodiment 1. The antistatic mechanism includes a movable groove 14 and a conductive pad 15. The valve stem 4 is snapped into the snap-fit ​​groove 3 by a conductive spring 6. The conductive pad 15 is fixedly connected to the outside of the valve stem 4 above the conductive spring 6. The valve body 1 is provided with a movable groove 14 that matches the conductive pad 15. The valve body 1 is also provided with a movable groove 14 that matches the conductive pad 15. The outer surface of the valve body 1 is coated with a conductive coating. The conductive coating can further improve the conductivity of the valve body 1 and help improve the antistatic effect.

[0036] Reference Figure 3 , Figure 4 The auxiliary transmission mechanism includes a driving bevel gear 16, a driven bevel gear 17, a half gear 18, a driven gear 19, a drive motor 20, a transmission handle 21, and a reducer 22. The driven bevel gear 17 is installed inside the fixed frame 7 on the outer side of the valve stem 4. The driving bevel gear 16 is installed on the outer side of one end of the movable shaft 8, and the driving bevel gear 16 meshes with the driven bevel gear 17. The transmission handle 21 is installed on the outer side of the other end of the movable shaft 8, and the driven gear 19 is installed on the side of the driving bevel gear 16 on the outer side of the movable shaft 8. The drive motor 20 is fixedly installed inside the fixed frame 7, and the reducer 22 is connected to the side of the drive motor 20. The output end of the reducer 22 is connected to the half gear 18, and the half gear 18 meshes with the driven gear 19. The controller 23 is connected to the side of the drive motor 20, and a cover plate 24 is installed on the top of the fixed frame 7 by bolts.

[0037] When adjusting the pipeline ball valve, first manually rotate the drive handle 21. The drive handle 21 drives the movable shaft 8 to rotate. Because the active bevel gear 16 and the driven bevel gear 17 are meshed and connected, and the active bevel gear 16 and the driven bevel gear 17 adopt a high-precision meshing design (module matching, tooth surface hardening treatment), it ensures that the power transmission is smooth and without gaps. The active bevel gear 16 and the driven bevel gear 17 are respectively installed on the outer side of the movable shaft 8 and the valve stem 4. The rotation of the movable shaft 8 drives the valve stem 4 to rotate, thereby realizing the rotation adjustment of the ball valve body 2 in the middle of the valve body 1 through the rotating shaft. Because the fixed frame 7 is fixedly connected to the outer side, it has a limiting and blocking effect on the drive handle 21, preventing the ball valve body 2 from being over-opened or closed (see reference). Figure 2 In specific implementation, when the operator rotates the transmission handle 21, a torque sensor integrated at the base of the transmission handle 21 (which can be a CL-55 type) forms a signal closed loop with the controller 23. When the operator applies external force to rotate the transmission handle 21, the torque sensor captures the torque magnitude, rotation direction, and speed signals in real time, converts the analog signals into digital signals, and transmits them to the controller 23. The controller 23 has a built-in preset threshold (calibrated according to the valve's nominal diameter and working pressure). After receiving a valid signal, the controller 23 starts the drive motor 20. The drive motor 20 is equipped with a reducer 22, which drives the auxiliary movable shaft 8 to rotate through the meshing half gear 18 and driven gear 19. (The design of the half gear 18 avoids the motor power interfering with manual operation in the opposite direction, and only intervenes when manually rotating.) When the motor drives the half gear 18 to rotate, it transmits the auxiliary torque to the driven gear 19 through meshing. This torque and the manual torque applied by the operator are superimposed in the same direction on the movable shaft 8, jointly driving the active bevel gear 16 to rotate, thereby driving the valve stem 4 and the ball valve body 2 to adjust, thus improving the convenience of operation (see reference). Figure 6 , Figure 7 );

[0038] In addition, when static electricity is generated and accumulated during the use of the pipeline ball valve, firstly, the valve stem 4 is engaged with the inside of the engagement groove 3 by the conductive spring 6. Under the elastic action of the conductive spring 6, the ball valve body 2 and the valve stem 4 maintain a good electrical connection. Secondly, the conductive gasket 15 on the outside of the valve stem 4 matches the movable groove 14 inside the valve body 1, and the conductive gasket 15 is located inside the movable groove 14, so that the valve stem 4 and the valve body 1 also maintain a good electrical connection. Thus, during use, the static charge on the valve stem 4 is conducted to the valve body 1. The valve body 1 is connected to the ground through the support base 9, and the static charge is conducted to the ground, thereby achieving the purpose of anti-static. At the same time, the outer surface of the valve body 1 is coated with a conductive coating, which improves the conductivity of the valve body 1, achieves anti-static, and avoids some unnecessary safety hazards.

[0039] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A pipeline ball valve, comprising a valve body (1), characterized in that, The valve body (1) is equipped with a ball valve body (2) through a rotating shaft in the middle, and the ball valve body (2) has a snap-fit ​​groove (3) on the top. The valve body (1) is equipped with a valve stem (4) that matches the snap-fit ​​groove (3), and the snap-fit ​​groove (3) has an installation groove (5) at the lower end. The installation groove (5) is equipped with a conductive spring (6), and the conductive spring (6) is equipped with an anti-static mechanism on the outside. The valve stem (4) extends to the outside of the valve body (1), and a fixed frame (7) is fixedly installed on the outside of the valve stem (4) at the top of the valve body (1). A movable shaft (8) is installed inside the fixed frame (7), and an auxiliary transmission mechanism is provided on the outside of the movable shaft (8). A support base (9) is provided below the valve body (1), and an adjustable support frame (10) is provided inside the support base (9). The support frame (10) is bolted to the valve body (1).

2. The pipeline ball valve according to claim 1, characterized in that, The valve body (1) is fixedly installed with connecting flanges (11) on both sides, and the connecting flanges (11) are bolted to the sides with inlet pipe (12) and outlet pipe (13).

3. The pipeline ball valve according to claim 1, characterized in that, The antistatic mechanism includes a movable groove (14) and a conductive pad (15). The valve stem (4) is snapped into the slot (3) by a conductive spring (6). A conductive pad (15) is fixedly connected to the outside of the valve stem (4) above the conductive spring (6). The valve body (1) is provided with a movable groove (14) that matches the conductive pad (15).

4. The pipeline ball valve according to claim 3, characterized in that, The valve body (1) has an internal movable groove (14) that matches the conductive pad (15), and the outer surface of the valve body (1) is coated with a conductive coating.

5. The pipeline ball valve according to claim 1, characterized in that, The auxiliary transmission mechanism includes a driving bevel gear (16), a driven bevel gear (17), a half gear (18), a driven gear (19), a drive motor (20), a transmission handle (21), and a reducer (22). The driven bevel gear (17) is installed on the outside of the valve stem (4) inside the fixed frame (7), and the driving bevel gear (16) is installed on the outside of the movable shaft (8) at one end. The driving bevel gear (16) and the driven bevel gear (17) are meshed and connected.

6. The pipeline ball valve according to claim 5, characterized in that, A transmission grip (21) is installed on the outside of the other end of the movable shaft (8), and a driven gear (19) is installed on the outside of the movable shaft (8) on the side of the driving bevel gear (16).

7. The pipeline ball valve according to claim 5, characterized in that, The fixed frame (7) has a drive motor (20) fixedly installed inside, and a reducer (22) is connected to the side of the drive motor (20). The output end of the reducer (22) is connected to a half gear (18), and the half gear (18) meshes with the driven gear (19).

8. The pipeline ball valve according to claim 7, characterized in that, The drive motor (20) is connected to a controller (23) on its side, and a cover plate (24) is bolted to the top of the fixed frame (7).

9. The pipeline ball valve according to claim 1, characterized in that, The support base (9) is provided with multiple sets of mounting holes (25), and an electric cylinder (26) is installed in the middle of the support base (9).

10. The pipeline ball valve according to claim 9, characterized in that, The support base (9) has sliding grooves (27) on both sides that match the support frame (10), and the support frame (10) is fitted inside the sliding grooves (27) in a movable connection. The movable end of the electric cylinder (26) is fixedly connected to the middle of the support frame (10).

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