Pneumatic rotating device of pneumatic butterfly valve
By introducing components such as a wedge rod, a control rod and a pressure plate into the pneumatic rotary device of the pneumatic butterfly valve, the compression amount of the spring is adjusted to adjust the elastic force, which solves the problem that the spring in the existing technology cannot be adjusted, realizes the need to adapt to various working conditions, and is easy to maintain and replace.
Patent Information
- Application Number
- CN202422562326.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The springs of existing pneumatic butterfly valves cannot adjust the elastic force and pressure according to different working conditions and requirements, and cannot adapt to the needs of various usage scenarios.
A pneumatic rotary device is designed. The compression amount of the spring is adjusted to adjust its elastic force through components such as a wedge rod, a control rod and a pressure plate. The threaded rod and indicator plate are combined to achieve intuitive control of the elastic force adjustment. The piston assembly and the pressure plate are non-fixed structures, which is easy to maintain.
The flexible adjustment of the spring force in the pneumatic rotary device is realized to meet the needs of more usage scenarios and is easy to maintain and replace.
Smart Images
Figure CN223306313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pneumatic butterfly valves, in particular to a pneumatic rotary device of a pneumatic butterfly valve. Background Art
[0002] Pneumatic butterfly valve is a type of pneumatic valve. It is equipped with a rotatable valve stem and a corresponding pneumatic actuator. When in use, the valve stem is controlled by compressed air to rotate, which can drive the disc-shaped butterfly plate below the device to rotate. It can be used in the fields of food or chemical industry to cut off the fluid and realize the control of the fluid.
[0003] When in use, gas can be introduced into the interior of the pneumatic rotary device. At this time, the introduced air is compressed inside the device and can control the rotation of the valve plate, so that the valve can be opened and closed. Multiple sets of reset springs are installed inside the device to drive the rotary mechanism. When the gas supply inside the device is blocked or the device has an abnormality, the reset spring can push the internal piston assembly to reset, and can automatically control the valve plate to close, so as to realize automatic reset of the device. However, since the installed spring is a component with a single elastic force, the elastic force and pressure of the spring cannot be adjusted according to different working conditions and requirements, and cannot adapt to the actual needs of more usage scenarios. In order to solve this technical problem, the utility model proposes a pneumatic rotary device for a pneumatic butterfly valve. Utility Model Content
[0004] The main purpose of the utility model is to provide a pneumatic rotary device for a pneumatic butterfly valve, which can effectively solve the problems mentioned in the background technology.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A pneumatic rotary device for a pneumatic butterfly valve comprises a pneumatic rotary device body, a control gear installed inside the pneumatic rotary device body, a piston assembly installed inside the pneumatic rotary device body, a tooth plate installed outside the piston assembly, a fixed plate installed on one side of the piston assembly, a spring installed inside the fixed plate, sealing covers fixedly installed on both sides of the pneumatic rotary device body, a wedge rod slidably connected to the inside of the sealing cover, a control rod slidably connected to one end of the wedge rod, and a pressure plate fixedly installed on the outer surface of the wedge rod.
[0007] Preferably, the gear teeth of the control gear mesh with the gear teeth of the gear plate, and two groups of the gear plates are provided inside the pneumatic rotary device body and arranged on both sides.
[0008] Preferably, a positioning hole is provided inside the pressure plate, the other end of the spring is fixedly mounted to the inner wall of the positioning hole, an auxiliary rod is fixedly mounted on the inner wall of the positioning hole, and the spring is sleeved on the outside of the auxiliary rod.
[0009] Preferably, a limiting rod is installed inside the pneumatic rotary device body, and the limiting rods are provided in multiple groups and arranged in a ring array, and the outer surface of the limiting rod is slidably connected to the inside of the pressure plate.
[0010] Preferably, a fixing box is detachably connected to one side of the sealing cover, the fixing box is arranged perpendicular to the wedge-shaped rod, the outer surface of the control rod is slidably connected to the inside of the fixing box, and one end of the control rod is a wedge-shaped structure.
[0011] Preferably, the fixing box is internally rotatably connected to a threaded rod, the outer surface of the threaded rod is threadably connected to the inner surface of the control rod, a rotating handle is fixedly mounted on one end of the threaded rod, and the rotating handle and threaded rod are provided in two groups and are symmetrically arranged.
[0012] Preferably, an indicator plate is slidably connected to the interior of the fixed box, and a scale plate is provided on the exterior of the fixed box, and the indicator plate and the scale plate correspond to each other.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The utility model uses components such as a wedge rod, a control rod and a pressure plate. During operation, the position of the pressure plate inside the pneumatic rotary device body can be adjusted by the control rod. The control rod can move up and down. When the control rod moves, the wedge rod can be squeezed. The position of the pressure plate can be adjusted by the wedge rod. At this time, the distance between the upper and lower ends of the spring can be adjusted by the pressure plate. By adjusting the amount of compression applied to the spring at this time, the elastic force of the spring during operation can be adjusted. This realizes the function of adjusting the elastic force of the spring inside the pneumatic rotary device body according to needs, which is conducive to meeting the usage requirements of more scenarios.
[0015] The utility model provides components such as a threaded rod and an indicator plate. By rotating the threaded rod, the control rod can be driven to move inside the fixed box, and the position of the wedge rod can be further adjusted. When the control rod moves, the indicator plate can be driven to move. The adjustment data can be intuitively converted through the cooperation of the indicator plate and the scale plate, which is convenient for the staff to have a clear understanding of the amount of adjustment. At the same time, the piston assembly and the pressure plate are non-fixed structures. When replacing, only the sealing covers on both sides need to be removed, and there is no need to remove the piston assembly additionally, which is convenient for maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of a pneumatic rotary device of a pneumatic butterfly valve of the utility model;
[0017] Figure 2 This is a schematic diagram of the overall interior of a pneumatic rotary device of a pneumatic butterfly valve of the present invention;
[0018] Figure 3 This is a schematic diagram of the overall interior right side view of a pneumatic rotary device of a pneumatic butterfly valve of the present invention;
[0019] Figure 4 This is a schematic diagram of the interior of a fixed box of a pneumatic rotary device of a pneumatic butterfly valve according to the present invention.
[0020] In the figure: 1. Pneumatic rotary device body; 2. Control gear; 3. Piston assembly; 4. Tooth plate; 5. Fixed plate; 6. Spring; 7. Sealing cover; 8. Wedge rod; 9. Control rod; 10. Pressure plate; 11. Positioning hole; 12. Auxiliary rod; 13. Limit rod; 14. Fixed box; 15. Threaded rod; 16. Turning handle; 17. Indicator plate; 18. Scale plate. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0022] like Figure 1 -4 shows a pneumatic rotary device for a pneumatic butterfly valve, comprising a pneumatic rotary device body 1. The interior of the pneumatic rotary device body 1 is connected to an interface that can be connected to an external air pipe. A control gear 2 is installed inside the pneumatic rotary device body 1. A piston assembly 3 is installed inside the pneumatic rotary device body 1. A tooth plate 4 is installed outside the piston assembly 3. The teeth of the control gear 2 and the teeth of the tooth plate 4 are meshed with each other. Two groups of tooth plates 4 are provided inside the pneumatic rotary device body 1 and are arranged on both sides. The piston assembly 3 is pushed by gas to move, which can drive the tooth plates 4 on both sides to move. A valve plate assembly is installed below the control gear 2. The movement of the tooth plate 4 will drive the control gear 2 to rotate and drive the valve plate to open. At this time, the valve plate of the pneumatic butterfly valve is open.
[0023] A fixed plate 5 is installed on one side of the piston assembly 3, and a spring 6 is installed inside the fixed plate 5. The fixed plate 5 can move with the piston assembly 3. When the piston assembly 3 moves under the gas, the fixed plate 5 will compress the spring 6. At this time, the spring 6 is compressed. When the piston assembly 3 is not subjected to external force, the spring 6 can push the piston assembly 3 to reset, which can further drive the valve plate to close.
[0024] A sealing cover 7 is fixedly installed on both sides of the pneumatic rotary device body 1. A wedge rod 8 is slidably connected to the inside of the sealing cover 7. One end of the wedge rod 8 is slidably connected to the control rod 9. The wedge rod 8 can be driven to move by the control rod 9. A fixed box 14 is detachably connected to one side of the sealing cover 7. The fixed box 14 is arranged vertically to the wedge rod 8. The outer surface of the control rod 9 is slidably connected to the inside of the fixed box 14. One end of the control rod 9 is a wedge-shaped structure. The control rod 9 can move up and down inside the fixed box 14. The control rod 9 and the inclined surface of the wedge rod 8 are in contact with each other. The movement of the control rod 9 can press the wedge rod 8 to slide inside the sealing cover 7.
[0025] The interior of the fixed box 14 is rotatably connected to a threaded rod 15, and the outer surface of the threaded rod 15 is connected to the internal thread of the control rod 9. The rotation of the threaded rod 15 can drive the control rod 9 to move inside the fixed box 14. The position of the control rod 9 can be adjusted by rotating the threaded rod 15. A rotating handle 16 is fixedly installed at one end of the threaded rod 15. There are two groups of rotating handles 16 and threaded rods 15 and they are arranged symmetrically.
[0026] A pressure plate 10 is fixedly installed on the outer surface of the wedge rod 8, and a positioning hole 11 is provided inside the pressure plate 10. The other end of the spring 6 is fixedly installed on the inner wall of the positioning hole 11. The position of the pressure plate 10 can be controlled by the wedge rod 8. When the pressure plate 10 moves, the distance between the two ends of the spring 6 can be adjusted. The position of the pressure plate 10 can be adjusted according to different usage scenarios. An auxiliary rod 12 is fixedly installed on the inner wall of the positioning hole 11, and the spring 6 is sleeved on the outside of the auxiliary rod 12. The auxiliary rod 12 can ensure the stability of the spring 6 when it rebounds, and can prevent the spring 6 from tilting excessively when it rebounds, thereby ensuring stability during use. The piston assembly 3 and the pressure plate 10 are non-fixed structures. When replacing, only the sealing covers 7 on both sides need to be removed. There is no need to remove the piston assembly 3 additionally, which is convenient for maintenance and replacement.
[0027] A limiting rod 13 is installed inside the pneumatic rotary device body 1. The limiting rod 13 is provided in multiple groups and arranged in a circular array. The outer surface of the limiting rod 13 is slidably connected to the inside of the pressure plate 10. The limiting rod 13 can control the pressure plate 10 to move stably in a straight line inside the pneumatic rotary device body 1, preventing the pressure plate 10 from rotating during the movement, thereby ensuring the rebound and compression stability of the spring 6 in the straight direction.
[0028] The interior of the fixed box 14 is slidably connected to an indicator plate 17, and the exterior of the fixed box 14 is provided with a scale plate 18. The indicator plate 17 and the scale plate 18 correspond to each other. The scale plates 18 at different positions represent different pressures of the spring 6. When the control rod 9 moves, it can drive the indicator plate 17 to move, and the staff can visually observe the amount of adjustment pressure.
[0029] The electrical equipment in this application is a common electrical equipment in the prior art. This application will not elaborate on its model or internal structure, and it can also be replaced by other power sources.
[0030] When adjusting the elastic force of the spring 6, the threaded rod 15 is controlled to rotate. The threaded rod 15 can drive the control rod 9 to move inside the fixed box 14. The movement of the wedge rod 8 can be controlled by the inclined surface of the control rod 9 and the wedge rod 8. When the control rod 9 moves, the inclined surface of the wedge rod 8 can be squeezed. At this time, the wedge rod 8 can drive the pressure plate 10 to move. The different positions of the pressure plate 10 can adjust the different distances between the two ends of the spring 6, and the elastic force of the spring 6 can be adjusted. When the control rod 9 moves inside the fixed box 14, it can drive the indicator plate 17 to move. The cooperation between the indicator plate 17 and the scale plate 18 can intuitively understand the adjustment degree.
[0031] 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 to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A pneumatic rotary device for a pneumatic butterfly valve, comprising a pneumatic rotary device body (1), characterized in that: A control gear (2) is installed inside the pneumatic rotary device body (1), a piston assembly (3) is installed inside the pneumatic rotary device body (1), a tooth plate (4) is installed outside the piston assembly (3), a fixed plate (5) is installed on one side of the piston assembly (3), a spring (6) is installed inside the fixed plate (5), sealing covers (7) are fixedly installed on both sides of the pneumatic rotary device body (1), a wedge rod (8) is slidably connected inside the sealing cover (7), a control rod (9) is slidably connected to one end of the wedge rod (8), and a pressure plate (10) is fixedly installed on the outer surface of the wedge rod (8).
2. The pneumatic rotary device of a pneumatic butterfly valve according to claim 1, characterized in that: The gear teeth of the control gear (2) mesh with the gear teeth of the toothed plate (4), and two groups of the toothed plates (4) are provided inside the pneumatic rotary device body (1) and arranged on both sides.
3. The pneumatic rotary device of a pneumatic butterfly valve according to claim 1, characterized in that: A positioning hole (11) is provided inside the pressure plate (10), the other end of the spring (6) is fixedly mounted on the inner wall of the positioning hole (11), an auxiliary rod (12) is fixedly mounted on the inner wall of the positioning hole (11), and the spring (6) is sleeved on the outside of the auxiliary rod (12).
4. The pneumatic rotary device of a pneumatic butterfly valve according to claim 1, characterized in that: Limiting rods (13) are installed inside the pneumatic rotary device body (1), and the limiting rods (13) are provided in multiple groups and arranged in a ring array. The outer surface of the limiting rods (13) is slidably connected to the inside of the pressure plate (10).
5. The pneumatic rotary device of a pneumatic butterfly valve according to claim 1, characterized in that: A fixing box (14) is detachably connected to one side of the sealing cover (7), the fixing box (14) and the wedge-shaped rod (8) are arranged vertically, the outer surface of the control rod (9) is slidably connected to the inside of the fixing box (14), and one end of the control rod (9) is a wedge-shaped structure.
6. The pneumatic rotary device of a pneumatic butterfly valve according to claim 5, characterized in that: The fixing box (14) is internally rotatably connected to a threaded rod (15), the outer surface of the threaded rod (15) is threadably connected to the inner surface of the control rod (9), and a rotating handle (16) is fixedly mounted on one end of the threaded rod (15). The rotating handle (16) and the threaded rod (15) are provided in two groups and are symmetrically arranged.
7. The pneumatic rotary device of a pneumatic butterfly valve according to claim 6, characterized in that: An indicator plate (17) is slidably connected to the interior of the fixed box (14), and a scale plate (18) is provided on the exterior of the fixed box (14), wherein the indicator plate (17) and the scale plate (18) correspond to each other.