Three-section type middle position pneumatic actuator

Abstract

The utility model provides a three-section type middle pneumatic actuator, which relates to the technical field of pneumatic actuators and comprises a base, a pneumatic actuator body and a damping mechanism arranged on the base and used for supporting the pneumatic actuator body, a slot is arranged at the top of the base, and a protective cover is arranged at the top of the base. According to the protective cover, by rotating the bidirectional threaded rod, the bidirectional threaded rod drives the two moving plates to be far away from each other, so that the clamping blocks are separated from the clamping grooves, then the inserting blocks at the bottom of the protective cover are pulled out of the inserting grooves, and the protective cover can be disassembled conveniently; and by rotating a bidirectional threaded rod, the bidirectional threaded rod drives two moving plates to get close to each other, so that a clamping block is driven to be squeezed into a clamping groove, the base and the protective cover are clamped and mounted together, mounting is convenient, and an operator can conveniently carry out maintenance operation.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic actuators, in particular to a three-stage intermediate position pneumatic actuator. Background Art

[0002] Pneumatic actuators are actuators that use air pressure to drive the opening, closing or regulating of valves. In order to improve the use effect and service life of pneumatic actuators, protective structures are required to provide them with certain protection during operation. Therefore, specific frame structures are required to protect and support them.

[0003] However, the existing pneumatic actuator protective cover is generally fixed and installed by screws, and the pneumatic actuator needs to open the cover for relevant operations during operation or maintenance. The use of screws for connection makes disassembly and assembly inconvenient and is not conducive to maintenance. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the protective cover is generally fixed and installed by screws, and the pneumatic actuator needs to open the cover for related operations during operation or maintenance, and the use of screws for connection leads to inconvenience in disassembly and assembly, which is not conducive to maintenance, and a three-stage intermediate position pneumatic actuator is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a three-stage intermediate position pneumatic actuator, comprising a base, a pneumatic actuator body and a shock-absorbing mechanism arranged on the base and used to support the pneumatic actuator body, a slot is provided on the top of the base, a protective cover is provided on the top of the base, an insert block is fixedly connected to the bottom of the protective cover, a card slot is provided on one side of the protective cover, a bidirectional threaded rod is rotatably connected in the base, a movable plate is sleeved on the outer surface of the bidirectional threaded rod, and a card block is fixedly connected to one side of the movable plate.

[0006] Preferably, the shock absorbing mechanism comprises two fixing plates, the two fixing plates are fixedly connected to the top of the base, and a damper is arranged on the top of the base.

[0007] Preferably, a support plate is provided on the top of the damper, and a fixing rod is fixedly connected to the opposite side of the two fixing plates, and a shock absorbing spring is sleeved on the outer surface of the fixing rod, and a sliding block is sleeved on the outer surface of the fixing rod.

[0008] Preferably, a first U-shaped frame is fixedly connected to the top of the sliding block, a second U-shaped frame is fixedly connected to the bottom of the support plate, and a connecting block is hingedly connected to the inner sides of the first U-shaped frame and the second U-shaped frame.

[0009] Preferably, a limiting groove is provided on the top of the base, and the movable plate movably passes through the limiting groove.

[0010] Preferably, the smooth end of the bidirectional threaded rod movably passes through the base, and a rotating cap is fixedly mounted on the smooth end of the bidirectional threaded rod.

[0011] Preferably, the card block is located in the card slot, and the card block matches the card slot.

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

[0013] 1. In the utility model, by rotating the bidirectional threaded rod, the bidirectional threaded rod drives the two movable plates to move away from each other, thereby separating the card block and the card slot, and then the plug block at the bottom of the protective cover can be pulled out from the slot, which is convenient for disassembling the protective cover. When installing the protective cover again, first insert the plug block at the bottom of the protective cover into the slot, and then rotate the bidirectional threaded rod to drive the two movable plates to move closer to each other, thereby driving the card block to squeeze into the card slot, and then the base and the protective cover are snap-fitted and installed together, which is convenient for installation and maintenance by operators.

[0014] 2. In the utility model, by providing a shock absorbing mechanism, when vibration occurs, the support plate is subjected to force, so that the support plate drives the sliding block to move, and at the same time the shock absorbing spring is squeezed and begins to shrink, and under the damping action of the damper, it can play a role in buffering and shock absorption, and play a certain protective role on the pneumatic actuator body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-stage middle-position pneumatic actuator is provided for the utility model;

[0016] Figure 2 The utility model provides a three-stage intermediate position pneumatic actuator with a three-stage structure of a clamping block;

[0017] Figure 3 The utility model provides a structural stereogram of a shock absorbing mechanism in a three-stage intermediate position pneumatic actuator;

[0018] Figure 4 The utility model provides a three-stage intermediate position pneumatic actuator with a sectional structural stereogram of the base;

[0019] Figure 5 The utility model provides a structural stereogram of a protective cover in a three-stage intermediate position pneumatic actuator.

[0020] Legend: 1. Base; 2. Pneumatic actuator body; 3. Shock absorbing mechanism; 301. Fixed plate; 302. Damper; 303. Support plate; 304. Fixed rod; 305. Shock absorbing spring; 306. Sliding block; 307. First U-shaped frame; 308. Second U-shaped frame; 309. Connecting block; 4. Slot; 5. Protective cover; 6. Insert block; 7. Card slot; 8. Bidirectional threaded rod; 9. Moving plate; 10. Card block; 11. Limiting slot; 12. Rotating cap. DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] Embodiment 1, as Figure 1 - Figure 5 As shown, the utility model provides a three-stage intermediate position pneumatic actuator, including a base 1, a pneumatic actuator body 2 and a shock absorbing mechanism 3 arranged on the base 1 and used to support the pneumatic actuator body 2, a slot 4 is provided on the top of the base 1, a protective cover 5 is provided on the top of the base 1, an insert block 6 is fixedly connected to the bottom of the protective cover 5, a card slot 7 is provided on one side of the protective cover 5, a bidirectional threaded rod 8 is rotatably connected in the base 1, a movable plate 9 is sleeved on the outer surface of the bidirectional threaded rod 8, and a card block 10 is fixedly connected to one side of the movable plate 9.

[0024] The effect achieved by the entire embodiment 1 is that by rotating the bidirectional threaded rod 8, the bidirectional threaded rod 8 drives the two movable plates 9 to move away from each other, thereby causing the two movable plates 9 to drive the two clamping blocks 10 to move away from each other, so that the clamping block 10 and the clamping slot 7 are separated, and then the plug block 6 at the bottom of the protective cover 5 can be pulled out from the slot 4, which is convenient for disassembly of the protective cover 5. When the protective cover 5 is installed again, the plug block 6 at the bottom of the protective cover 5 is first inserted into the slot 4, and then the bidirectional threaded rod 8 is rotated to drive the two movable plates 9 to move closer to each other, thereby driving the clamping block 10 to squeeze into the clamping slot 7, and then the base 1 and the protective cover 5 are clamped and installed together, which is convenient for installation and convenient for operators to perform maintenance operations.

[0025] Embodiment 2, as Figure 1 - Figure 5As shown, the shock absorbing mechanism 3 includes two fixed plates 301, which are fixedly connected to the top of the base 1, a damper 302 is arranged on the top of the base 1, a support plate 303 is arranged on the top of the damper 302, a fixed rod 304 is fixedly connected to the opposite side of the two fixed plates 301, a shock absorbing spring 305 is sleeved on the outer surface of the fixed rod 304, a sliding block 306 is sleeved on the outer surface of the fixed rod 304, a first U-shaped frame 307 is fixedly connected to the top of the sliding block 306, a second U-shaped frame 308 is fixedly connected to the bottom of the support plate 303, a connecting block 309 is hinged on the inner side of the first U-shaped frame 307 and the second U-shaped frame 308, a limiting groove 11 is provided on the top of the base 1, a movable plate 9 movably penetrates the limiting groove 11, a smooth end of the bidirectional threaded rod 8 movably penetrates the base 1, a rotating cap 12 is fixedly installed on the smooth end of the bidirectional threaded rod 8, a clamping block 10 is located in the clamping groove 7, and the clamping block 10 matches the clamping groove 7.

[0026] The effect achieved by the entire embodiment 2 is that, by providing the shock absorbing mechanism 3, when vibration occurs, the support plate 303 is subjected to force, so that the support plate 303 drives the sliding block 306 to move, and at the same time the shock absorbing spring 305 is squeezed and begins to shrink, and under the damping action of the damper 302, it can play a role of buffering and shock absorption, and has a certain protective effect on the pneumatic actuator body 2, and then by providing the limiting groove 11, the limiting groove 11 limits the movable plate 9, and when the bidirectional threaded rod 8 rotates, it drives the movable plate 9 to move, and then by providing the rotating cap 12, it is convenient for the operator to rotate the bidirectional threaded rod 8, thereby increasing convenience.

[0027] Working principle: When the protective cover 5 needs to be disassembled, the rotating cap 12 is rotated first. Since the limit slot 11 limits the movable plate 9, the bidirectional threaded rod 8 drives the two movable plates 9 to move away from each other, so that the two movable plates 9 drive the two clamping blocks 10 to move away from each other, so that the clamping block 10 and the clamping slot 7 are separated, and then the plug-in block 6 at the bottom of the protective cover 5 is pulled out from the slot 4, which is convenient for disassembling the protective cover 5. When the protective cover 5 is installed again, the plug-in block 6 at the bottom of the protective cover 5 is first inserted into the slot 4, and then ... bidirectional threaded rod 8 drives the two movable plates 9 to move away from each other, so that the two movable plates 9 drive the two clamping blocks 10 to move away from each other, and then the two movable plates 9 drive the two clamping blocks 10 to move away from each other, and then the two movable plates 9 drive the two clamping blocks 10 to move away from each other, and then the two movable plates 9 drive the two clamping blocks 10 to move away from each other The threaded rod 8 drives the two movable plates 9 to approach each other, so that the driving block 10 is squeezed into the slot 7, and then the base 1 and the protective cover 5 are clamped and installed together, which is convenient for installation and maintenance operations by operators. At the same time, the shock absorbing mechanism 3 is set. When vibration occurs, the support plate 303 is subjected to force, so that the support plate 303 drives the sliding block 306 to move. At the same time, the shock absorbing spring 305 is squeezed and begins to shrink. Under the damping action of the damper 302, it can play a role of buffering and shock reduction, and has a certain protective effect on the pneumatic actuator body 2.

[0028] 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 three-stage intermediate position pneumatic actuator, comprising a base (1), a pneumatic actuator body (2), and a shock absorbing mechanism (3) disposed on the base (1) and used to support the pneumatic actuator body (2), characterized in that: A slot (4) is provided on the top of the base (1), a protective cover (5) is arranged on the top of the base (1), an insert block (6) is fixedly connected to the bottom of the protective cover (5), a clamping slot (7) is provided on one side of the protective cover (5), a bidirectional threaded rod (8) is rotatably connected inside the base (1), a movable plate (9) is sleeved on the outer surface of the bidirectional threaded rod (8), and a clamping block (10) is fixedly connected to one side of the movable plate (9).

2. A three-stage intermediate position pneumatic actuator according to claim 1, characterized in that: The shock absorbing mechanism (3) comprises two fixing plates (301), the two fixing plates (301) are fixedly connected to the top of the base (1), and a damper (302) is provided on the top of the base (1).

3. A three-stage intermediate position pneumatic actuator according to claim 2, characterized in that: A support plate (303) is provided on the top of the damper (302), and a fixing rod (304) is fixedly connected to the opposite side of the two fixing plates (301), and a shock absorbing spring (305) is sleeved on the outer surface of the fixing rod (304), and a sliding block (306) is sleeved on the outer surface of the fixing rod (304).

4. A three-stage intermediate position pneumatic actuator according to claim 3, characterized in that: The top of the sliding block (306) is fixedly connected to a first U-shaped frame (307), the bottom of the support plate (303) is fixedly connected to a second U-shaped frame (308), and a connecting block (309) is hingedly connected to the inner sides of the first U-shaped frame (307) and the second U-shaped frame (308).

5. A three-stage intermediate position pneumatic actuator according to claim 1, characterized in that: A limiting groove (11) is provided on the top of the base (1), and the movable plate (9) movably passes through the limiting groove (11).

6. A three-stage intermediate position pneumatic actuator according to claim 1, characterized in that: The smooth end of the bidirectional threaded rod (8) movably penetrates the base (1), and a rotating cap (12) is fixedly mounted on the smooth end of the bidirectional threaded rod (8).

7. A three-stage intermediate position pneumatic actuator according to claim 1, characterized in that: The card block (10) is located in the card slot (7), and the card block (10) matches the card slot (7).

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