Connecting mechanism of ball valve body and actuator

Abstract

The utility model relates to the technical field of control valves, in particular to a connecting mechanism of a ball valve body and an actuator, which comprises the valve body, the actuator is mounted on the valve body, a shifting disc is mounted at the top of the actuator, and a valve ball is mounted at the bottom of the actuator. A valve hole is formed in the top of the valve body, and a limiting column is installed on the outer wall of the top of the valve body. The actuator comprises a rotating disc connected with the shifting disc. The valve body and the actuator are connected through the valve shaft hole and the valve shaft, stable connection between the valve body and the actuator is guaranteed, loosening or dislocation caused by vibration or other external force is reduced, the actuator can be conveniently mounted and dismounted through the fixing screw holes and the inserting columns on the rotating disc, special tools or complex operation steps are not needed, and the operation efficiency is improved. The shifting disc is connected with the valve ball through the actuator, the opening and closing position of the valve ball can be accurately controlled, so that accurate control over flow is achieved, the valve body is limited at a specific position due to the arrangement of the limiting column, and over-position or dislocation caused by external force or other factors is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of control valves, in particular to a connecting mechanism between a ball valve body and an actuator. Background Art

[0002] A ball valve is a check valve with a ball as a switch element. The ball rotates around its own axis to control the flow of the medium. It is usually composed of a valve body, a ball, a sealing ring, a valve stem, etc. It has the advantages of simple structure, good sealing performance, and rapid opening and closing. It is widely used in various industries, such as petroleum, chemical, pharmaceutical, energy, textile and food. The actuator is a driver that realizes valve control, usually composed of an electric motor and a reducer, a transmission shaft, a coupling, a travel switch and a controller. By controlling the opening and closing and flow of the valve through an electric actuator, the degree of automation and production efficiency can be improved. The connection between the actuator and the valve body of a traditional ball valve is not stable enough and is easily affected by vibration or other external forces, resulting in looseness or dislocation, affecting the normal operation of the ball valve. Utility Model Content

[0003] The purpose of the utility model is to provide a connection mechanism between a ball valve body and an actuator, so as to solve the problem in the above background technology that the connection between the actuator and the valve body of the ball valve is not stable enough and is easily affected by vibration or other external forces, resulting in looseness or dislocation, thus affecting the normal operation of the ball valve.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A connecting mechanism between a ball valve body and an actuator comprises a valve body, an actuator is mounted on the valve body, a dial plate is mounted on the top of the actuator, and a valve ball is mounted on the bottom of the actuator;

[0006] A valve shaft hole is provided on the top of the valve body, and a limiting column is installed on the top outer wall of the valve body;

[0007] The actuator comprises a rotating disk connected to the dial, a fixing screw hole is provided on the outer wall of the rotating disk, a valve shaft is coaxially connected to the bottom of the rotating disk, and a plug-in column is coaxially installed on the bottom of the valve shaft;

[0008] The valve ball is provided with a plug-in hole which is matched with the cross-sectional size of the plug-in column and is plug-matched.

[0009] Preferably, external joints are coaxially mounted on both ends of the valve body.

[0010] Preferably, the turntable and the valve shaft are an integrally formed structure, and the diameter of the valve shaft is matched with the diameter of the valve shaft hole.

[0011] Preferably, a connecting disk which is adapted to the size of the rotating disk and is plug-fitted therewith is installed on the rotating disk.

[0012] Preferably, a through hole corresponding to the position of the fixing screw hole and having a size matching that of the fixing screw hole is formed on the outer wall of the connecting plate.

[0013] Preferably, the connecting plate is connected to the rotating plate by fixing bolts passing through the through holes and the fixing screw holes in sequence.

[0014] Preferably, the cross-sections of the plug-in column and the plug-in hole are both square.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the connection mechanism between the valve body and the actuator of the ball valve, the connection between the valve body and the actuator is achieved through the valve shaft hole and the valve shaft, ensuring a stable connection between the two and reducing looseness or dislocation caused by vibration or other external forces. The actuator can be easily installed and removed through the fixing screw holes and plug-in columns on the turntable without the need for special tools or complicated operating steps. The dial is connected to the valve ball through the actuator, which can accurately control the switch position of the valve ball, thereby achieving precise control of the flow rate. The setting of the limit column restricts the valve body at a specific position, preventing over-position or dislocation caused by external force or other factors. It has the characteristics of high stability, convenient installation and disassembly, precise control, limit function, compact structure, and easy maintenance and repair.

[0017] 2. In the connection mechanism between the ball valve body and the actuator, external joints are coaxially installed at both ends of the valve body, which increases the stability of the entire connection mechanism and makes it more stable when subjected to external forces. The design of the external joint enables the connection mechanism to adapt to different pipeline or equipment interfaces, expanding its application range.

[0018] 3. In the connection mechanism between the ball valve body and the actuator, the connecting plate is connected to the turntable by fixing bolts passing through the through holes and the fixing screw holes in sequence, and the connecting plate installed on the toggle plate is connected to the turntable by fixing bolts, making assembly and disassembly more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, further detailed explanation is provided, but the accompanying drawings do not constitute a limitation to the present invention.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the exploded structure of the utility model;

[0022] Figure 3 This is the second schematic diagram of the decomposition structure of the utility model.

[0023] The meaning of the symbols in the figure:

[0024] 10. Valve body; 11. External joint; 12. Valve shaft hole; 13. Limiting column;

[0025] 20. Actuator; 21. Turntable; 22. Fixing screw hole; 23. Valve shaft; 24. Connecting column;

[0026] 30. a dial; 31. a connection plate; 32. a through hole;

[0027] 40. Valve ball; 41. Connecting hole. DETAILED DESCRIPTION

[0028] The following will combine the embodiments of the utility model and the drawings of the specification to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] A connection mechanism between a ball valve body and an actuator, such as Figure 1-Figure 3As shown, it includes a valve body 10, an actuator 20 is installed on the valve body 10, a toggle plate 30 is installed on the top of the actuator 20, and a valve ball 40 is installed on the bottom of the actuator 20; a valve shaft hole 12 is opened on the top of the valve body 10, and a limit column 13 is installed on the top outer wall of the valve body 10; the actuator 20 includes a turntable 21 connected to the toggle plate 30, a fixing screw hole 22 is opened on the outer wall of the turntable 21, a valve shaft 23 is coaxially connected to the bottom of the turntable 21, and a plug-in column 24 is coaxially installed on the bottom of the valve shaft 23; a plug-in hole 41 that is compatible with the cross-sectional size of the plug-in column 24 and plug-fits with the plug-in column 24 is opened on the valve ball 40, and the connection between the valve body 10 and the actuator 20 is through the valve shaft hole 12 and the valve shaft 23 is realized to ensure a stable connection between the two and reduce looseness or misalignment caused by vibration or other external forces. The actuator 20 can be easily installed and removed through the fixing screw holes 22 and the plug-in columns 24 on the turntable 21 without special tools or complicated operating steps. The dial 30 is connected to the valve ball 40 through the actuator 20, and the switch position of the valve ball can be accurately controlled, thereby realizing precise control of the flow rate. The setting of the limit column 13 limits the valve body 10 at a specific position, preventing over-position or misalignment caused by external forces or other factors. It has the characteristics of high stability, convenient installation and disassembly, precise control, limit function, compact structure, and easy maintenance and repair.

[0031] Furthermore, external joints 11 are coaxially installed at both ends of the valve body 10, which increases the stability of the entire connection mechanism and makes it more stable when subjected to external forces. The design of the external joint 11 enables the connection mechanism to adapt to different pipeline or equipment interfaces, expanding its application range.

[0032] The turntable 21 and the valve shaft 23 are integrally formed, which simplifies the manufacturing process and reduces production costs. The diameter of the valve shaft 23 is compatible with the diameter of the valve shaft hole 12, ensuring a close fit between the two and enhancing the connection strength.

[0033] Specifically, a connecting disk 31 which is adapted to the size of the turntable 21 and is plugged in is installed on the toggle disk 30. A through hole 32 which corresponds to the position of the fixing screw hole 22 and is adapted to the size is opened on the outer wall of the connecting disk 31. The connecting disk 31 is connected to the turntable 21 by fixing bolts that pass through the through hole 32 and the fixing screw hole 22 in sequence. The connecting disk 31 installed on the toggle disk 30 is connected to the turntable 21 by fixing bolts, which makes assembly and disassembly more convenient.

[0034] In addition, the cross-sections of the plug-in column 24 and the plug-in hole 41 are both square, which increases the strength and stability of the connection and improves the durability of the entire mechanism.

[0035] The working principle of the connection mechanism between the valve body and the actuator of the ball valve is as follows: the operator matches the fixing screw hole 22 on the turntable 21 of the actuator 20 with the limit column 13 on the top outer wall of the valve body 10, installs the actuator 20 on the valve body 10 by means of the fixing screws, inserts the valve shaft 23 into the valve shaft hole 12, and makes the valve shaft 23 cooperate with the valve shaft hole 12 to connect, thereby connecting the valve body 10 with the actuator 20, and controls the switching position of the valve ball 40 by means of the toggle disk 30 of the actuator 20, thereby realizing precise control of the flow rate. When the actuator 20 needs to be disassembled, it only needs to be removed by removing the fixing screws, and then the valve shaft 23 can be pulled out to conveniently disassemble the actuator 20.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A connection mechanism between a ball valve body and an actuator, comprising a valve body (10), characterized in that: An actuator (20) is mounted on the valve body (10), a dial (30) is mounted on the top of the actuator (20), and a valve ball (40) is mounted on the bottom of the actuator (20); A valve shaft hole (12) is provided at the top of the valve body (10), and a limiting column (13) is installed on the top outer wall of the valve body (10); The actuator (20) comprises a rotating disk (21) connected to the dial (30), a fixing screw hole (22) is provided on the outer wall of the rotating disk (21), a valve shaft (23) is coaxially connected to the bottom of the rotating disk (21), and a plug-in column (24) is coaxially installed on the bottom of the valve shaft (23); The valve ball (40) is provided with a plug hole (41) which matches the cross-sectional size of the plug post (24) and is plug-matched.

2. The connection mechanism between the ball valve body and the actuator according to claim 1, characterized in that: External joints (11) are coaxially mounted on both ends of the valve body (10).

3. The connection mechanism between the ball valve body and the actuator according to claim 1, characterized in that: The rotating disk (21) and the valve shaft (23) are an integrally formed structure, and the diameter of the valve shaft (23) is matched to the diameter of the valve shaft hole (12).

4. The connection mechanism between the ball valve body and the actuator according to claim 1, characterized in that: The dial plate (30) is provided with a connecting plate (31) which matches the size of the rotating plate (21) and is plug-fitted therewith.

5. The connection mechanism between the ball valve body and the actuator according to claim 4, characterized in that: A through hole (32) corresponding in position to the fixing screw hole (22) and having a size matching that of the fixing screw hole (22) is provided on the outer wall of the connecting plate (31).

6. The connection mechanism between the ball valve body and the actuator according to claim 5, characterized in that: The connecting plate (31) is connected to the rotating plate (21) by means of fixing bolts which pass through the through holes (32) and the fixing screw holes (22) in sequence.

7. The connection mechanism between the ball valve body and the actuator according to claim 1, characterized in that: The cross sections of the plug-in column (24) and the plug-in hole (41) are both square.

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