Buffer structure of pneumatic actuator

Abstract

The utility model provides a pneumatic actuator buffer structure, which relates to the technical field of pneumatic actuators and comprises a shell, two air inlets and outlets on the outer surface wall of the shell, valves arranged in the two air inlets and outlets, a connecting rod fixedly connected to the top of each valve, a motor fixedly connected to the top of each connecting rod, and a connecting plate fixedly connected to the bottom of each motor. A controller is arranged on the outer surface wall of the shell, through cooperation of the gas sensor, the connecting circuit, the data collector, the controller, the gas inlet and outlet, the valve, the connecting rod, the motor and the connecting plate, the gas flow speed of the gas inlet and outlet can be controlled, and the situation that the normal work of the pneumatic actuator is affected due to the too high gas inlet speed is avoided. And under the cooperation of a buffer spring, a buffer damper and a rubber pad, the buffer spring and the buffer damper can be protected when the pneumatic actuator works, so that the working safety of the pneumatic actuator is guaranteed, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic actuators, in particular to a pneumatic actuator buffer structure. Background Art

[0002] Pneumatic actuators are devices that use air pressure to drive the opening and closing or regulating of valves. They are also called pneumatic actuators or pneumatic devices, but are generally referred to as pneumatic heads. The actuators and regulating mechanisms of pneumatic actuators are a unified whole. The actuators include diaphragm type, piston type, scotch fork type and gear rack type. The piston type has a long stroke and is suitable for occasions requiring a large thrust, while the diaphragm type has a small stroke and can only directly drive the valve stem. Pneumatic actuators are devices that use air pressure to drive the opening and closing or regulating of valves. They are also called pneumatic actuators or pneumatic devices. They are important components in electrical equipment. In industrial automation control systems, pneumatic actuators are widely used to control the operation of valves, gates, ball valves and other equipment.

[0003] However, when the existing pneumatic actuator is working, it is impossible to automatically control the gas flow rate entering the interior. If the gas flow rate entering the interior is too fast, it will cause damage to the internal structure of the pneumatic actuator, reduce the service life of the pneumatic actuator, and reduce the working efficiency. When the internal flow rate is too fast, it will cause wear on the buffer structure of the pneumatic actuator, reducing its service life. Utility Model Content

[0004] The utility model mainly provides a pneumatic actuator buffer structure which can conveniently and automatically control the internal gas flow rate and protect the working safety of the buffer structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a pneumatic actuator buffer structure, including a shell, an outer wall of the shell having two air inlets and outlets, valves are arranged inside the two air inlets and outlets, the top of the valve is fixedly connected to a connecting rod, and the top of the connecting rod is fixedly connected to a motor.

[0006] Preferably, a connecting plate is fixedly connected to the bottom of the motor, and a controller is provided on the outer wall of the shell, so that the motor can operate stably and the air intake rate can be controlled, thereby reducing the number of movements of the internal equipment and reducing the working time of the buffer spring and buffer damping, thereby protecting its working safety and improving work efficiency.

[0007] Preferably, a gas sensor is provided inside the housing, and a connecting line is fixedly connected to the top of the gas sensor to facilitate the control of the valve to work and improve work efficiency.

[0008] Preferably, a data collector is fixedly connected to one end of the side of the connecting line, and the gas sensor and the data collector are connected in a linear circuit using the connecting line, so as to facilitate the transmission of the detected data to the inside of the data collector, analyze and process the data, and conveniently control the flow rate of the inlet and outlet gas.

[0009] Preferably, the outer wall of the shell is movably connected with a connecting block, and the outer wall of the connecting block is provided with a threaded hole, so as to facilitate fixing the connecting block to the shell and protect it from working normally.

[0010] Preferably, the internal thread of the threaded hole is connected to a threaded rod, and a rubber pad is provided inside the connecting block to facilitate fixing the connecting block. The buffer spring and buffer damping will not be worn during buffering operations, thereby increasing their service life and improving work efficiency.

[0011] Preferably, a buffer spring is fixedly connected to the outer wall of the rubber pad, and a buffer damping is arranged inside the buffer spring to facilitate buffering the movement of the pneumatic actuator, thereby ensuring its working safety and improving work efficiency.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the gas flow rate of the gas inlet and outlet can be controlled by cooperating with the gas sensor, connecting line, data acquisition device, controller, gas inlet and outlet, valve, connecting rod, motor and connecting plate to avoid the gas entering too fast and affecting the normal operation of the pneumatic actuator. Then, by cooperating with the buffer spring, buffer damping and rubber pad, the buffer spring and buffer damping can be protected when the pneumatic actuator is working, thereby ensuring the working safety of the pneumatic actuator and improving the working efficiency.

[0014] 2. In the utility model, the connection block and the housing can be fixed by the cooperation of the threaded rod, the threaded hole and the connection block, and when a fault occurs, the connection block can be easily disassembled to repair the interior, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a schematic diagram of the main structure of a pneumatic actuator buffer structure;

[0016] Figure 2 The utility model provides a schematic diagram of the internal structure of a pneumatic actuator buffer structure;

[0017] Figure 3 A schematic diagram of the gas sensor installation position structure of a pneumatic actuator buffer structure is proposed for the utility model;

[0018] Figure 4A pneumatic actuator buffer structure is proposed for the utility model Figure 1 A schematic diagram of the enlarged structure in FIG.

[0019] Legend: 1. Housing; 2. Connecting block; 3. Threaded rod; 4. Threaded hole; 5. Rubber pad; 6. Buffer spring; 7. Buffer damping; 8. Gas sensor; 9. Connecting line; 10. Data logger; 11. Controller; 12. Air inlet and outlet; 13. Connecting rod; 14. Connecting plate; 15. Motor; 16. Valve. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] See also Figure 1-Figure 4 The utility model provides a technical solution: a pneumatic actuator buffer structure, including a shell 1, two air inlets and outlets 12 on the outer wall of the shell 1, valves 16 are arranged inside the two air inlets and outlets 12, the top of the valve 16 is fixedly connected to a connecting rod 13, and the top of the connecting rod 13 is fixedly connected to a motor 15.

[0023] like Figure 1 and Figure 4 As shown, a connecting plate 14 is fixedly connected to the bottom of the motor 15, and a controller 11 is provided on the outer wall of the housing 1. The motor 15 is supported by the connecting plate 14, so that the motor 15 can operate stably. Under the action of the controller 11, the air intake rate of the pneumatic actuator can be controlled when it is operating, thereby reducing the number of movements of the internal equipment, and at the same time reducing the working time of the buffer spring 6 and the buffer damper 7, thereby protecting its working safety and improving work efficiency.

[0024] like Figure 3 As shown, a gas sensor 8 is provided inside the housing 1, and a connecting line 9 is fixedly connected to the top of the gas sensor 8. The gas sensor 8 is used to detect the internal gas flow rate entering the pneumatic actuator (the gas sensor 8 adopts APEM-*-CH20), and then the connecting line 9 is used to connect with other equipment, so as to facilitate the control of the valve 16 to work and improve the work efficiency.

[0025] like Figure 3As shown, a data collector 10 is fixedly connected to one end of the side of the connecting line 9, and the gas sensor 8 and the data collector 10 are connected in a linear circuit using the connecting line 9. The data detected by the gas sensor 8 is transmitted to the inside of the data collector 10 by using the connecting line 9, and the data is analyzed and processed to facilitate the control of the flow rate of the inlet and outlet gas.

[0026] like Figure 1 and Figure 2 As shown, the outer wall of the shell 1 is movably connected with a connecting block 2, and the outer wall of the connecting block 2 is provided with a threaded hole 4. The connecting block 2 is used to close both sides of the shell 1, and the connecting block 2 is conveniently fixed through the action of the threaded hole 4.

[0027] like Figure 1 and Figure 2 As shown, the internal thread of the threaded hole 4 is connected with a threaded rod 3, and a rubber pad 5 is arranged inside the connecting block 2. The connecting block 2 is fixedly connected to the housing 1 by the cooperation of the threaded rod 3 and the threaded hole 4, and the buffer spring 6 and the buffer damper 7 are protected by the rubber pad 5, so that the buffer spring 6 and the buffer damper 7 will not be worn during the buffering operation, thereby increasing their service life and improving work efficiency.

[0028] like Figure 2 As shown, the outer wall of the rubber pad 5 is fixedly connected with a buffer spring 6, and a buffer damper 7 is arranged inside the buffer spring 6. The movement of the pneumatic actuator is buffered by the cooperation of the buffer spring 6 and the buffer damper 7, so that its working safety can be guaranteed and the working efficiency is improved.

[0029] The method of use and working principle of the device are as follows: firstly, the pneumatic actuator is connected with other devices, and then the pneumatic actuator can use air to work normally under the action of the air inlet and outlet 12. When the air flow rate entering the air inlet and outlet 12 is too fast, the gas sensor 8 is used to detect the internal gas flow rate entering the pneumatic actuator, and then the detection signal is transmitted to the inside of the data acquisition device 10 through the connecting line 9, the data is analyzed and processed, and then the signal is transmitted to the inside of the controller 11, and then the controller 11 controls the motor 15 to start above the connecting plate 14, driving the connecting rod 13 to rotate, and at the same time driving the valve 16 to move, so that the air in the air inlet and outlet 12 is not moved. The caliber of the part becomes smaller, slowing down the gas flow rate entering the pneumatic actuator, thereby reducing the number of movements of the internal structure of the pneumatic actuator, avoiding excessive movement of the internal structure, causing wear, and affecting the working efficiency of the pneumatic actuator. The buffer spring 6 and the buffer damper 7 are then protected by the rubber pad 5, so that the buffer spring 6 and the buffer damper 7 will not be worn during the buffering operation. Then, the motor 15 is supported by the connecting plate 14 to facilitate the stable operation of the motor 15. The connecting block 2 is fixedly connected to the housing 1 by the cooperation of the threaded rod 3 and the threaded hole 4 to ensure the working safety of the internal equipment of the pneumatic actuator. In addition, when a fault occurs, it can be easily disassembled and the internal part can be repaired.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A pneumatic actuator buffer structure, characterized in that: The invention comprises a shell (1), the outer wall of the shell (1) having two air inlets and outlets (12), valves (16) being arranged inside the two air inlets and outlets (12), the top of the valve (16) being fixedly connected to a connecting rod (13), and the top of the connecting rod (13) being fixedly connected to a motor (15).

2. The pneumatic actuator buffer structure according to claim 1, characterized in that: A connecting plate (14) is fixedly connected to the bottom of the motor (15), and a controller (11) is provided on the outer wall of the housing (1).

3. The pneumatic actuator buffer structure according to claim 1, characterized in that: A gas sensor (8) is arranged inside the housing (1), and a connecting line (9) is fixedly connected to the top of the gas sensor (8).

4. The pneumatic actuator buffer structure according to claim 3, characterized in that: A data collector (10) is fixedly connected to one end of the side of the connection line (9), and the gas sensor (8) and the data collector (10) are connected in a linear circuit using the connection line (9).

5. The pneumatic actuator buffer structure according to claim 1, characterized in that: The outer wall of the housing (1) is movably connected to a connection block (2), and the outer wall of the connection block (2) is provided with a threaded hole (4).

6. The pneumatic actuator buffer structure according to claim 5, characterized in that: The threaded hole (4) is internally threadedly connected to a threaded rod (3), and a rubber pad (5) is disposed inside the connection block (2).

7. The pneumatic actuator buffer structure according to claim 6, characterized in that: The outer wall of the rubber pad (5) is fixedly connected with a buffer spring (6), and a buffer damper (7) is arranged inside the buffer spring (6).

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