Double-position double-adjustment single-action pneumatic actuator

Abstract

The utility model provides a double-position double-adjustment single-action pneumatic actuator, which relates to the technical field of pneumatic actuators and comprises a body, a rotating shaft is mounted on the bottom surface in the body in a penetrating manner, a storage groove is formed in the top of the rotating shaft, and an electric telescopic rod is fixedly mounted in the storage groove. In the maintenance process, a worker holds a rotating shaft and then starts an electric telescopic rod, the telescopic end of the electric telescopic rod stretches to push a gear to ascend, meanwhile, the worker starts an electromagnet, the electromagnet is powered on to generate magnetic force, an iron check block enters a fixing groove under attraction force, and a second spring is compressed; when the bottom of the rotating rod makes contact with the bottom of the second clamping groove, a worker closes the electromagnet, the check block makes contact with the inner wall of the second clamping groove under the elastic force effect of the second spring, the rotating rod and the gear are fixed together, finally the motor is started, the rotating shaft can be driven to rotate, then the valve can be controlled, 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 double-position double-adjustable single-acting pneumatic actuator. Background Art

[0002] Pneumatic actuators are actuators that use air pressure to open, close or adjust valves. They are also called pneumatic actuators or pneumatic devices, but they are generally called pneumatic heads. Pneumatic actuators are sometimes equipped with certain auxiliary devices. Commonly used are valve positioners and handwheel mechanisms. The function of the valve positioner is to use the feedback principle to improve the performance of the actuator so that the actuator can achieve accurate positioning according to the control signal of the controller. The function of the handwheel mechanism is to directly manipulate the control valve to maintain normal production when the control system fails due to power outages, gas outages, no output of the controller or failure of the actuator.

[0003] In the prior art, after a traditional part of the pneumatic actuator is used for a long time, its internal parts may be damaged. At this time, the staff needs to disassemble the device and then repair it. Therefore, the pneumatic actuator may not be able to continue to control the valve, and the controlled valve cannot continue to work, which may reduce work efficiency and increase working time. Utility Model Content

[0004] The utility model mainly provides a double-position double-adjustment single-acting pneumatic actuator which is convenient for improving working efficiency and reducing working time.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: The utility model provides a technical scheme: a double-position, double-adjustment, single-acting pneumatic actuator, comprising: a body, a rotating shaft is installed through the bottom surface of the body, a storage slot is provided on the top of the rotating shaft, an electric telescopic rod is fixedly installed inside the storage slot, a gear is fixedly installed on the telescopic end of the electric telescopic rod, a first card slot is provided on the top of the gear, a second card slot is provided at the bottom of the first card slot, a motor is fixedly installed on the top of the body, the output end of the motor passes through the body and is fixedly installed with a rotating rod, two fixed slots are symmetrically provided at the bottom of the rotating rod, and electromagnets are fixedly installed on the inner walls of the two fixed slots, a second spring is fixedly installed on the opposite side of the two electromagnets, a block is fixedly installed on the opposite side of the two second springs, a limiting rod is fixedly installed on the opposite side of the two blocks, and the two limiting rods are slidably plugged with the electromagnet on the side away from the block to prevent the block from tilting when it moves.

[0006] Preferably, two slide grooves are symmetrically provided on both sides of the main body, limiting grooves are provided on the inner walls of the two slide grooves, third springs are fixedly installed on the inner walls of the two limiting grooves, and fixing blocks are fixedly installed on one side of the two third springs close to the slide grooves for fixing the card plate and the top cover.

[0007] Preferably, a connecting rod is fixedly installed on one end of the fixing block close to the third spring, and an end of the connecting rod away from the fixing block passes through the body and is fixedly installed with a pulling plate, and by pulling the pulling plate, the pulling plate can pull the fixing block out of the connecting port through the connecting rod.

[0008] Preferably, top covers are provided on both sides of the body, two clamping plates are fixedly mounted on opposite sides of the two top covers, and connecting ports are penetrated through one side of the two clamping plates for fixing the top covers and the body together.

[0009] Preferably, four evenly distributed first springs are fixedly installed on opposite sides of the two top covers, a push plate is fixedly installed on one end of the four first springs away from the top cover, a rack is fixedly installed on one end of the push plate away from the first spring, and the rack is meshingly connected with the gear, and the rotation of the gear is controlled by controlling the movement of the rack, thereby controlling the rotation of the valve.

[0010] Preferably, rubber rings are fixedly mounted on the inner bottom surface and the bottom of the main body to prevent air leakage.

[0011] Preferably, an air inlet hole is formed through one side of the two top covers, and an air outlet hole is formed through one side of the main body. The air inlet hole is used to allow gas to pass between the push plate and the top cover to control the movement of the push plate. The air inlet hole is used to allow gas to pass between the two push plates to control the movement of the push plates.

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

[0013] 1. In the utility model, during maintenance, the staff holds the rotating shaft and then starts the electric telescopic rod. The telescopic end of the electric telescopic rod stretches to push the gear up. At the same time, the staff starts the electromagnet. The electromagnet is energized to generate magnetic force. The iron block is attracted and enters the fixed groove. The second spring is compressed. When the bottom of the rotating rod contacts the bottom of the second card slot, the staff turns off the electromagnet. The block enters the second card slot under the elastic force of the second spring and contacts the inner wall of the second card slot. At this time, the elastic force of the block given to the gear increases the friction between the two, so that the rotating rod and the gear are fixed together. Finally, the motor is started to drive the rotating shaft to rotate, and then the valve can be controlled, thereby improving work efficiency.

[0014] 2. In the utility model, when disassembling, the staff pulls the pull plate, and the pull plate drives the connecting rod and the fixed block to move, and the fixed block leaves the connecting port and enters the limiting groove. The third spring is compressed, and the top cover can be pulled out at this time. When installing, the staff pushes the card plate into the slide groove, and the card plate contacts the inclined surface of the fixed block, and pushes the card plate into the limiting groove. When the card plate moves to the side of the connecting port, the card plate enters the connecting port under the elastic force of the third spring. In this way, the installation can be successful, which is convenient for the staff to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a double-position, double-adjustable, single-acting pneumatic actuator is proposed for the utility model;

[0016] Figure 2 The utility model proposes a main body internal structure diagram of a double-position double-adjustable single-acting pneumatic actuator;

[0017] Figure 3 A gear cross-sectional view of a double-position double-adjustable single-acting pneumatic actuator is proposed for the utility model;

[0018] Figure 4 A schematic diagram of a rotating rod of a double-position double-adjustable single-acting pneumatic actuator is provided for the utility model;

[0019] Figure 5 A schematic diagram of a top cover of a double-position, double-adjustable, single-acting pneumatic actuator is provided for the utility model;

[0020] Figure 6 The utility model provides a body sectional view of a double-position double-adjustable single-acting pneumatic actuator.

[0021] Legend: 1. Main body; 2. Top cover; 3. Air inlet; 4. Air outlet; 5. Rotating shaft; 6. Pull plate; 7. Motor; 8. Rubber ring; 9. Gear; 10. First spring; 11. Push plate; 12. Rack; 13. Rotating rod; 14. Storage slot; 15. Electric telescopic rod; 16. First card slot; 17. Second card slot; 18. Fixed slot; 19. Second spring; 20. Block; 21. Limit rod; 22. Electromagnet; 23. Card plate; 24. Connecting port; 25. Slide slot; 26. Limit slot; 27. Third spring; 28. Fixed block; 29. ​​Connecting rod. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] See also Figure 1-Figure 6 The utility model provides a technical solution: a double-position double-adjustment single-acting pneumatic actuator, comprising: a body 1, a rotating shaft 5 is installed through the bottom surface of the body 1, a storage slot 14 is provided on the top of the rotating shaft 5, an electric telescopic rod 15 is fixedly installed inside the storage slot 14, a gear 9 is fixedly installed on the telescopic end of the electric telescopic rod 15, a first card slot 16 is provided on the top of the gear 9, and a second card slot 17 is provided at the bottom of the first card slot 16, a motor 7 is fixedly installed on the top of the body 1, the output end of the motor 7 passes through the body 1 and is fixedly installed with a rotating rod 13, two fixed slots 18 are symmetrically provided at the bottom of the rotating rod 13, and electromagnets 22 are fixedly installed on the inner walls of the two fixed slots 18, a second spring 19 is fixedly installed on the opposite side of the two electromagnets 22, a stopper 20 is fixedly installed on the opposite side of the two second springs 19, and a limit rod 21 is fixedly installed on the opposite side of the two stoppers 20, and the two limit rods 21 are slidably plugged with the electromagnet 22 on the side away from the stopper 20 to prevent the stopper 20 from tilting when moving.

[0025] like Figure 6 As shown, two slide grooves 25 are symmetrically provided on both sides of the main body 1, and limiting grooves 26 are provided on the inner walls of the two slide grooves 25. Third springs 27 are fixedly installed on the inner walls of the two limiting grooves 26, and a fixing block 28 is fixedly installed on one side of the two third springs 27 close to the slide groove 25 for fixing the clamping plate 23 and the top cover 2.

[0026] like Figure 6 As shown, a connecting rod 29 is fixedly installed on one end of the fixed block 28 close to the third spring 27, and the end of the connecting rod 29 away from the fixed block 28 passes through the main body 1 and is fixedly installed with a pull plate 6. By pulling the pull plate 6, the pull plate 6 can pull the fixed block 28 out of the connecting port 24 through the connecting rod 29.

[0027] like Figure 5 As shown, top covers 2 are provided on both sides of the body 1 , and two clamping plates 23 are fixedly installed on opposite sides of the two top covers 2 . A connecting port 24 is formed through one side of the two clamping plates 23 for fixing the top covers 2 and the body 1 together.

[0028] like Figure 2As shown, four evenly distributed first springs 10 are fixedly installed on the opposite sides of the two top covers 2, a push plate 11 is fixedly installed on one end of the four first springs 10 away from the top covers 2, a rack 12 is fixedly installed on one end of the push plate 11 away from the first springs 10, and the rack 12 is meshed and connected with the gear 9. By controlling the movement of the rack 12, the rotation of the gear 9 is controlled, and then the rotation of the valve is controlled.

[0029] like Figure 2 As shown, rubber rings 8 are fixedly installed on the inner bottom surface and the bottom of the body 1 to prevent air leakage.

[0030] like Figure 1 As shown, an air inlet hole 3 is formed on opposite sides of the two top covers 2, and an air outlet hole 4 is formed on one side of the body 1. The air inlet hole 3 is used to introduce gas between the push plate 11 and the top cover 2 to control the movement of the push plate 11. The air inlet hole 3 is used to introduce gas between the two push plates 11 to control the movement of the push plate 11.

[0031] The use method and working principle of the device are as follows: during maintenance, the staff holds the rotating shaft 5 and then starts the electric telescopic rod 15. The telescopic end of the electric telescopic rod 15 stretches to push the gear 9 up. At the same time, the staff starts the electromagnet 22. The electromagnet 22 is energized to generate magnetic force. The iron block 20 is attracted to enter the fixed groove 18, and the second spring 19 is compressed. When the bottom of the rotating rod 13 contacts the bottom of the second card slot 17, the staff closes the electromagnet 22. The block 20 enters the second card slot 17 under the elastic force of the second spring 19 and contacts the inner wall of the second card slot 17. At this time, the elastic force of the block 20 given to the gear 9 increases the friction between the two, so that the rotating rod 13 and the gear 9 are fixed together. Finally, the motor 7 is started to drive the rotating shaft 5 to rotate, and then the valve can be controlled, thereby improving work efficiency. During disassembly, the staff pulls the pull plate 6, and the pull plate 6 drives the connecting rod 29 and the fixed block 28 to move. The fixed block 28 leaves the connecting port 24 and enters the limiting groove 26. The third spring 27 is compressed. At this time, the top cover 2 can be pulled out. During installation, the staff pushes the card plate 23 into the slide groove 25. The card plate 23 contacts the inclined surface of the fixed block 28 and pushes the card plate 23 into the limiting groove 26. When the card plate 23 moves to the side of the connecting port 24, the card plate 23 enters the connecting port 24 under the elastic force of the third spring 27. In this way, the installation is successful, which facilitates the installation and disassembly of the staff.

[0032] 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 double-position double-adjustable single-acting pneumatic actuator, characterized in that: include: A body (1), a rotating shaft (5) is installed through the bottom surface of the body (1), a storage slot (14) is provided on the top of the rotating shaft (5), an electric telescopic rod (15) is fixedly installed inside the storage slot (14), a gear (9) is fixedly installed at the telescopic end of the electric telescopic rod (15), a first card slot (16) is provided on the top of the gear (9), a second card slot (17) is provided at the bottom of the first card slot (16), a motor (7) is fixedly installed on the top of the body (1), and the output end of the motor (7) passes through the body (1) and is fixedly installed A rotating rod (13) is provided, wherein two fixing grooves (18) are symmetrically provided at the bottom of the rotating rod (13), and the inner walls of the two fixing grooves (18) are fixedly installed with electromagnets (22), and the opposite sides of the two electromagnets (22) are fixedly installed with second springs (19), and the opposite sides of the two second springs (19) are fixedly installed with stoppers (20), and the opposite sides of the two stoppers (20) are fixedly installed with limiting rods (21), and the sides of the two limiting rods (21) away from the stoppers (20) are slidably plugged with the electromagnets (22).

2. A double-position double-adjustable single-acting pneumatic actuator according to claim 1, characterized in that: Two slide grooves (25) are symmetrically provided on both sides of the body (1), and the inner walls of the two slide grooves (25) are provided with limit grooves (26), and the inner walls of the two limit grooves (26) are fixedly installed with third springs (27), and the two third springs (27) are fixedly installed with fixed blocks (28) on one side close to the slide groove (25).

3. A double-position double-adjustable single-acting pneumatic actuator according to claim 2, characterized in that: A connecting rod (29) is fixedly mounted on one end of the fixing block (28) close to the third spring (27), and an end of the connecting rod (29) away from the fixing block (28) passes through the body (1) and is fixedly mounted with a pulling plate (6).

4. A double-position double-adjustable single-acting pneumatic actuator according to claim 2, characterized in that: Top covers (2) are provided on both sides of the body (1), two clamping plates (23) are fixedly mounted on opposite sides of the two top covers (2), and connection ports (24) are provided through one side of the two clamping plates (23).

5. A double-position double-adjustable single-acting pneumatic actuator according to claim 4, characterized in that: Four evenly distributed first springs (10) are fixedly mounted on opposite sides of the two top covers (2); a push plate (11) is fixedly mounted on one end of the four first springs (10) away from the top covers (2); a rack (12) is fixedly mounted on one end of the push plate (11) away from the first springs (10); and the rack (12) is meshingly connected to the gear (9).

6. A double-position double-adjustable single-acting pneumatic actuator according to claim 1, characterized in that: A rubber ring (8) is fixedly mounted on the inner bottom surface and the bottom of the body (1).

7. A double-position double-adjustable single-acting pneumatic actuator according to claim 4, characterized in that: An air inlet hole (3) is provided through one side of the two top covers (2) facing each other, and an air outlet hole (4) is provided through one side of the body (1).

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