Pneumatic flange ball valve convenient to overhaul

Abstract

The pneumatic flange ball valve comprises a valve body, a ball core is rotationally connected to the middle of the valve body, controllers fixed to the two ends of the valve body are arranged at the upper end of the ball core, and a maintenance window penetrating through the valve body is screwed to the side, corresponding to the ball core, of the middle of the valve body; a maintenance rotating handle penetrating through the valve body is arranged at the bottom of the ball core; a clutch structure which is connected to the controller in a lifting mode and penetrates through the ball core is arranged on the position, corresponding to the upper portion of the ball valve, of the controller, and a damping positioning structure is connected between the clutch structure and the ball valve in a lifting mode. The device has the effect that the valve element of the ball valve can be detected and maintained without dismounting and calibrating the pneumatic actuator.

Description

Technical Field

[0001] The present application relates to the technical field of ball valves, and in particular to a pneumatic flange ball valve that is easy to maintain. Background Art

[0002] A ball valve is a valve that controls the flow of media by rotating a ball. There is a spherical channel inside the valve body. The ball controls the opening and closing of the channel through rotational motion, thereby achieving flow control of the media. Ball valves are mainly used in the control of liquids, gases and other media.

[0003] The ball in the ball valve affects the sealing ability of the ball valve. After being used for a period of time, the ball valve needs to be checked for wear to ensure the stability of the valve body. However, many existing ball valves use a pneumatic control structure to control the ball. If the entire valve body is removed, the pneumatic control structure also needs to be removed. The initialization process of installing the pneumatic control structure again is very complicated. In response to the above-mentioned related technologies, the applicant has proposed a pneumatic flange ball valve that is convenient for inspecting the ball. Utility Model Content

[0004] In order to inspect and repair the ball valve core without disassembling and calibrating the pneumatic actuator, the present application provides a pneumatic flange ball valve that is easy to maintain.

[0005] The present application provides a pneumatic flange ball valve that is easy to maintain and adopts the following technical solution:

[0006] A pneumatic flange ball valve which is easy to maintain comprises a valve body, a ball core is rotatably connected to the middle of the valve body, a controller fixed to both ends of the valve body is arranged on the upper end of the ball core, a maintenance window which is threadedly connected to the valve body on one side of the middle of the valve body corresponding to the ball core; a maintenance handle which is arranged to be ...

[0007] By adopting the above technical solution, the valve core can be directly exposed to the outside through the opening of the inspection window, while avoiding the fixed position of the controller, thereby avoiding affecting the positioning of the controller. The controller and the ball core are connected and disconnected through a clutch structure. The connection with the ball core can be disconnected during the inspection process, thereby preventing the position of the controller output shaft from being affected, thereby avoiding repositioning.

[0008] Preferably, the clutch structure includes an output shaft, a connecting column and a combining shaft, the output shaft is rotatably connected to the bottom of the controller; the connecting column is lifted and lowered connected to the output shaft and radially positioned, and the connecting column extends downward; the combining shaft is fixed to the top of the ball core and rotatably connected to the valve body, and the combining shaft is vertically provided with an offset groove corresponding to the connecting column, and the connecting column is passed through the offset groove on the combining shaft.

[0009] By adopting the above technical solution, the connection column is connected to the coupling shaft by lifting, the structure is simple and stable, not easy to be damaged, and the positioning effect is ideal, which is suitable for the opening and closing process of the ball valve.

[0010] Preferably, a control structure is provided on the controller, and the control structure includes a control connecting rod and a control handle; the control connecting rod is fixed to the connecting column and extends upward to pass through the output shaft and the controller; the control handle is transmission-connected to the control connecting rod.

[0011] Preferably, the damping positioning structure includes a damping column, a positioning tip and a return spring, the damping column is accommodated and lifted and lowered in the offset groove of the coupling shaft; the positioning tip is fixed to the bottom end of the connecting column, and the shape of the top end of the damping column corresponds to the positioning tip; the return spring is accommodated between the offset groove of the coupling shaft and the damping column, and drives the damping column to be higher than the upper surface of the coupling shaft.

[0012] By adopting the above technical solution, the ball valve brings very little resistance to the controller, and is not easy to affect the controller when adjusting the ball valve. After positioning, the damping is clear and not easy to deviate. It is practical, convenient and reliable.

[0013] Preferably, the valve body is provided with an anti-accidental touch structure, which includes an abutment plate, a reed and an abutment slope. The abutment plate is laterally slidably connected to the valve body, and the abutment plate abuts the lower surface of the connecting column; the reed is accommodated in the valve body, and abuts the abutment plate close to the connecting column; the abutment slope is fixed to the inspection window and extends toward the abutment plate, and the abutment slope abuts and drives the abutment plate away from the connecting column.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] 1. The valve core can be directly exposed to the outside through the opening of the inspection window, while avoiding the fixed position of the controller, so as not to affect the positioning of the controller. The controller and the ball core are connected and disconnected through a clutch structure. The connection with the ball core can be disconnected during the inspection process, so as to prevent the position of the controller output shaft from being impressed, thereby avoiding repositioning;

[0016] 2. The connection column is connected to the coupling shaft by lifting. The structure is simple and stable, not easy to be damaged, and the positioning effect is ideal. It is suitable for the opening and closing process of the ball valve;

[0017] 3. The ball valve brings little resistance to the controller, and it is not easy to affect the controller when it is adjusted to a ball valve. After positioning, the damping is clear and it is not easy to deviate. It is practical, convenient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0019] Figure 2is a cross-sectional view of an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the structure of the hidden inspection window in the embodiment of the present application;

[0021] Figure 4 yes Figure 3 An enlarged view of part A;

[0022] Figure 5 It is a partial cross-sectional view showing the damping positioning structure of an embodiment of the present application.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. Valve body; 2. Ball core; 3. Controller; 4. Inspection window; 5. Inspection handle; 6. Clutch structure; 61. Output shaft; 62. Connecting column; 63. Combining shaft; 7. Damping positioning structure; 71. Damping column; 72. Positioning tip; 73. Reset spring; 8. Anti-accidental touch structure; 81. Abutment plug plate; 82. Reed leaf; 83. Abutment slope; 9. Control structure; 91. Control connecting rod; 92. Control handle. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings.

[0025] The present application embodiment discloses a pneumatic flange ball valve which is easy to repair. Figure 1 , 2 , comprising a valve body 1; a ball core 2 is rotatably connected to the middle part of the valve body 1, a controller 3 fixed to both ends of the valve body 1 is arranged on the upper end of the ball core 2, a maintenance window 4 penetrating the valve body 1 is screwed on one side of the middle part of the valve body 1 corresponding to the ball core 2; a maintenance turning handle 5 penetrating the valve body 1 is arranged at the bottom of the ball core 2; when maintenance is needed, the maintenance window 4 is disassembled to expose the ball core 2, the ball core 2 is separated from the controller 3 through the clutch structure 6, and the angle of the ball core 2 is adjusted through the maintenance turning handle 5 to facilitate the measurement of the ball core 2.

[0026] Reference Figure 1 , 2 The clutch structure 6 includes an output shaft 61, a connecting column 62 and a combining shaft 63, wherein the output shaft 61 is rotatably connected to the bottom of the controller 3; the connecting column 62 is connected to the output shaft 61 by lifting and lowering and radially positioned, and the connecting column 62 extends downward; the combining shaft 63 is fixed to the top of the ball core 2 and is rotatably connected to the valve body 1, and a dislocation groove is vertically opened on the combining shaft 63 corresponding to the connecting column 62, and the connecting column 62 is passed through the dislocation groove on the combining shaft 63; the connecting column 62 is driven to lift and lower through the control structure 9, and when the connecting column 62 passes through the combining shaft 63 and descends, the combining shaft 63 and the output shaft 61 rotate synchronously through the connection of the connecting column 62; when the connection rises and is dislocated with the combining shaft 63, the combining shaft 63 rotates freely.

[0027] Reference Figure 1 , 2The control structure 9 includes a control link 91 and a control handle 92; the control link 91 is fixed to the connecting column 62, and extends upward to penetrate the output shaft 61 and the controller 3; the control handle 92 is transmission-connected to the control link 91 to avoid rotating the control link 91 during the lifting and lowering process of the handle.

[0028] Reference Figure 3 , 4 The valve body 1 is provided with an anti-accidental touch structure 8, which includes an abutting plug plate 81, a reed 82 and an abutting inclined surface 83. The abutting plug plate 81 is laterally slidably connected to the valve body 1, and the abutting plug plate 81 abuts against the lower surface of the connecting column 62; the reed 82 is accommodated in the valve body 1, and abuts against the abutting plug plate 81 close to the connecting column 62.

[0029] Reference Figure 2 , 5 When the inspection of the ball core 2 is completed, the ball core 2 is reset with the controller 3 through the damping positioning structure 7. The damping positioning structure 7 includes a damping column 71, a positioning tip 72 and a reset spring 73. The damping column 71 is accommodated and lifted and connected in the dislocation groove of the connecting shaft 63; the positioning tip 72 is fixed to the bottom end of the connecting column 62, and the top shape of the damping column 71 corresponds to the positioning tip 72; the reset spring 73 is accommodated between the dislocation groove of the connecting shaft 63 and the damping column 71, and drives the damping column 71 to be higher than the upper surface of the connecting shaft 63; the ball core 2 is rotated, and when both sides of the ball core 2 are subjected to uniform resistance, the dislocation groove of the connecting shaft 63 is longitudinally aligned with the connecting column 62.

[0030] Reference Figure 2 , 4 The abutting slope 83 is fixed to the inspection window 4 and extends toward the abutting plug plate 81. The abutting slope 83 abuts and drives the abutting plug plate 81 away from the connecting column 62, thereby avoiding the collision between the connecting column 62 and the coupling shaft 63 due to the descending of the connecting column 62 during the rotation of the ball valve; when the inspection window 4 is closed, the abutting slope 83 abuts against the abutting plug plate 81, automatically releasing the longitudinal lock of the connecting column 62, driving the control connecting rod 91 to descend, completing the connection between the output shaft 61 and the ball core 2, and the reset is completed.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pneumatic flange ball valve that is easy to maintain, comprising a valve body (1), characterized in that: The middle part of the valve body (1) is rotatably connected to a ball core (2), the upper end of the ball core (2) is provided with a controller (3) fixed to both ends of the valve body (1), and a maintenance window (4) is screwed on one side of the middle part of the valve body (1) corresponding to the ball core (2); the bottom of the ball core (2) is provided with a maintenance handle (5) which is penetrated through the valve body (1); and a clutch structure (6) which is connected to the controller (3) and penetrated through the ball core (2) is provided above the controller (3) corresponding to the ball valve, and a damping positioning structure (7) is connected to the clutch structure (6) and the ball valve in a lifting manner.

2. The pneumatic flange ball valve that is easy to maintain according to claim 1 is characterized in that: The clutch structure (6) comprises an output shaft (61), a connecting column (62) and a coupling shaft (63), wherein the output shaft (61) is rotatably connected to the bottom of the controller (3); the connecting column (62) is connected to the output shaft (61) in a lifting manner and radially positioned, and the connecting column (62) extends downward; the coupling shaft (63) is fixed to the top of the ball core (2) and rotatably connected to the valve body (1), and the coupling shaft (63) is vertically provided with an offset groove corresponding to the connecting column (62), and the connecting column (62) is inserted into the offset groove on the coupling shaft (63).

3. The pneumatic flange ball valve that is easy to maintain according to claim 2 is characterized in that: The controller (3) is provided with a control structure (9), which comprises a control connecting rod (91) and a control handle (92); the control connecting rod (91) is fixed to the connecting column (62) and extends upward to pass through the output shaft (61) and the controller (3); the control handle (92) is transmission-connected to the control connecting rod (91).

4. The pneumatic flange ball valve that is easy to maintain according to claim 2 is characterized in that: The damping positioning structure (7) comprises a damping column (71), a positioning tip (72) and a return spring (73); the damping column (71) is accommodated in and connected to the dislocation groove of the connecting shaft (63) in a lifting manner; the positioning tip (72) is fixed to the bottom end of the connecting column (62), and the top end of the damping column (71) is shaped to correspond to the positioning tip (72); the return spring (73) is accommodated between the dislocation groove of the connecting shaft (63) and the damping column (71), and drives the damping column (71) to be higher than the upper surface of the connecting shaft (63).

5. The pneumatic flange ball valve that is easy to maintain according to claim 2 is characterized in that: The valve body (1) is provided with an anti-accidental touch structure (8), which includes an abutting plug plate (81), a spring leaf (82) and an abutting inclined surface (83); the abutting plug plate (81) is connected to the valve body (1) in a transverse sliding manner, and the abutting plug plate (81) abuts against the lower surface of the connecting column (62); the spring leaf (82) is accommodated in the valve body (1) and abuts against the abutting plug plate (81) close to the connecting column (62); the abutting inclined surface (83) is fixed to the inspection window (4) and extends toward the abutting plug plate (81), and the abutting inclined surface (83) abuts against and drives the abutting plug plate (81) away from the connecting column (62).

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