Three-section type position adjusting pneumatic actuator

Abstract

The utility model discloses a three-section type position adjusting pneumatic actuator which comprises a valve body, a pneumatic actuator body is arranged at the upper end of the valve body, fixing plates are fixedly connected to the two sides of the valve body, a transverse rod is fixedly connected to the upper ends of the fixing plates, and two clamps are connected to the upper surface of the transverse rod in a sliding mode. A rotating part is arranged at the upper end of one clamp, a supporting frame is arranged on the side wall of the rotating part, a positioning plate is arranged at the upper end of the other clamp, a positioning hole is formed in the middle of the positioning plate, a positioning rod is slidably connected to the middle of the supporting frame, and two limiting plates are arranged outside the positioning rod. And springs are arranged outside the two limiting plates. By means of the structure, the two clamps are matched, the fixing plate is matched with the transverse rod, the clamps can be connected with the side wall of the valve body, the pneumatic actuator body is clamped and fixed through the clamps, and the pneumatic actuator body is kept stable.

Description

Technical Field

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

[0002] A pneumatic actuator is a control actuator for opening and closing a valve. Its structure generally includes a cylinder body, left and right end covers at both ends of the cylinder body, and left and right pistons and a toothed rotating shaft arranged inside the cylinder body. The left and right pistons drive the toothed rotating shaft through the connected racks. When the left and right pistons slide to make the limit blocks drive the gear shaft to rotate forward and backward, the valve correspondingly makes an opening or closing action.

[0003] Currently, when the existing pneumatic actuator is installed, it is only connected to the main rod of the valve, but its stability is insufficient during use, which easily affects the use effect of the pneumatic actuator. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is that when the existing pneumatic actuator is installed, it is only connected to the main rod of the valve, but its stability is insufficient during use, which easily affects the use effect of the pneumatic actuator.

[0005] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a three-stage position-adjusting pneumatic actuator, including a valve body, an upper end of the valve body is provided with a pneumatic actuator body, both sides of the valve body are fixedly connected with fixing plates, an upper end of the fixing plates is fixedly connected with a cross bar, an upper surface of the cross bar is slidably connected with two clamps, and a rotating member is arranged at an upper end of one of the clamps;

[0006] A support frame is arranged on a side wall of the rotating member, a positioning plate is arranged at an upper end of the other clamp, a positioning hole is opened in a middle of the positioning plate, a positioning rod is slidably connected in a middle of the support frame, and by cooperating with a pull rod and a spring, the positioning rod is driven to move under the pull of a handle, and under the cooperation of a threaded rod and a threaded block for the clamp, the threaded block drives the clamp to move during the movement, so that the clamp clamps the pneumatic actuator body, and after the pneumatic actuator body is installed on the valve, it can be kept stable to ensure the use effect.

[0007] Preferably, two limiting plates are arranged outside the positioning rod, and springs are arranged outside both of the limiting plates. The elastic force of the springs is used to push the positioning rod to move, so that the positioning rod is matched with the positioning hole.

[0008] Preferably, a middle part of one of the limiting plates is fixedly connected to an outside of the positioning rod, and a middle part of the other limiting plate is slidably connected to the outside of the positioning rod.

[0009] Preferably, one end of the positioning rod is fixedly connected with a handle, and the positioning rod is matched with the positioning hole.

[0010] Preferably, a threaded rod is rotatably connected to the middle of the cross bar, and two threaded blocks are threadedly connected to the outside of the threaded rod. The upper end of the threaded block is fixedly connected to the lower end of the clamp. By using the cooperation of the threaded rod and the threaded block, the threaded block drives the clamp to move during the movement, so that the clamp clamps and fixes the pneumatic actuator body.

[0011] Preferably, a knob is arranged at one end of the cross bar, and the side wall of the knob is fixedly connected to one end of the threaded rod.

[0012] Preferably, a first air inlet and a second air inlet are arranged on the side wall of the pneumatic actuator body.

[0013] The beneficial effects of the present utility model are as follows:

[0014] In the present utility model, the fixing plate is used to connect with the outside of the valve body, and the clamp is matched with the cross bar. A threaded rod is arranged inside the cross bar. By using the cooperation of the threaded rod and the threaded block, the threaded block drives the clamp to move, so that the clamp clamps and fixes the pneumatic actuator body. And by using the cooperation of the rotating part and the support frame, after the two clamps cooperate with each other, the pull rod is pulled to move, so that the positioning rod cooperates with the positioning plate, and the side wall of the positioning plate fits with the side wall of one of the limiting plates, thereby positioning the clamp. Description of the Drawings

[0015] Figure 1 is a three-dimensional view of a three-stage position-adjustable pneumatic actuator of the present utility model;

[0016] Figure 2 is a front view of a three-stage position-adjustable pneumatic actuator of the present utility model;

[0017] Figure 3 is a structural diagram of the inside of the side cross bar of a three-stage position-adjustable pneumatic actuator of the present utility model;

[0018] Figure 4 is of the present utility model Figure 3 The enlarged view at A in.

[0019] In the figure: 1. Valve body; 2. Pneumatic actuator body; 3. Fixing plate; 4. Cross bar; 5. Clamp; 6. First air inlet; 7. Second air inlet; 8. Knob; 9. Threaded rod; 10. Threaded block; 11. Positioning plate; 12. Handle; 13. Positioning rod; 14. Support frame; 15. Spring; 16. Limiting plate; 17. Rotating part. Detailed Embodiments

[0020] The following describes the preferred embodiments of the present utility model in detail with reference to the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0021] Please refer to Figure 1 - Figure 4 , a three-stage position-adjustable pneumatic actuator, including a valve body 1, a pneumatic actuator body 2 is arranged at the upper end of the valve body 1, fixing plates 3 are fixedly connected to both sides of the valve body 1, a cross bar 4 is fixedly connected to the upper end of the fixing plates 3, two clamps 5 are slidably connected to the upper surface of the cross bar 4. Under the cooperation of the threaded rod 9 and the threaded block 10, the threaded block 10 drives the clamp 5 to move during the movement process, so that the clamp 5 fixes the pneumatic actuator body 2. A rotating member 17 is arranged at the upper end of one of the clamps 5. The rotating member 17 cooperates with the support frame 14, and the angle of the positioning rod 13 can be adjusted. After the two clamps 5 cooperate with each other, the support frame 14 cooperates with the positioning plate 11, and the positioning rod 13 is pulled to move. And under the elastic push of the spring 15, the positioning rod 13 moves, and the clamp 5 can be positioned. The support frame 14 is arranged in an L shape. The side wall of the positioning plate 11 is attached to the side wall of the support frame 14, and the positioning rod 13 passes through the support frame 14 and the positioning plate 11, and the clamp 5 can be positioned;

[0022] A support frame 14 is arranged on the side wall of the rotating member 17, a positioning plate 11 is arranged at the upper end of the other clamp 5, a positioning hole is opened in the middle of the positioning plate 11, and a positioning rod 13 is slidably connected in the middle of the support frame 14, which is convenient for positioning the clamp 5.

[0023] Two limiting plates 16 are arranged outside the positioning rod 13 to limit the position of the spring 15 by using the limiting plates 16. Springs 15 are arranged outside both limiting plates 16. One of the limiting plates 16 is fixedly connected to the outside of the positioning rod 13 in the middle, and the other limiting plate 16 is slidably connected to the outside of the positioning rod 13 in the middle, which is convenient for pushing the positioning rod 13 to move by the elasticity of the spring 15. One end of the positioning rod 13 is fixedly connected to a handle 12. The positioning rod 13 cooperates with the positioning hole. A threaded rod 9 is rotatably connected to the middle of the cross bar 4. The external threads of the threaded rod 9 are symmetrically arranged, so that the two threaded blocks 10 move towards each other. Two threaded blocks 10 are threadedly connected to the outside of the threaded rod 9. The upper end of the threaded block 10 is fixedly connected to the lower end of the clamp 5. A knob 8 is arranged at one end of the cross bar 4. The side wall of the knob 8 is fixedly connected to one end of the threaded rod 9. A first air inlet 6 and a second air inlet 7 are arranged on the side wall of the pneumatic actuator body 2.

[0024] When the utility model is in use, the fixing plate 3 is fixedly connected to the side wall of the valve body 1, the pneumatic actuator body 2 is connected to the rotating rod of the valve, and the knob 8 is used to drive the threaded rod 9 to rotate. During the rotation of the threaded rod 9, the threaded block 10 is driven to move, so that the two threaded blocks 10 drive the fixture 5 to move, and the fixture 5 fixes the pneumatic actuator body 2. The rotating member 17 is matched with the support frame 14 to adjust the angle of the support frame 14, so that the two fixtures 5 cooperate with each other. Then, the support frame 14 is toggled, and the positioning rod 13 is pulled to move by the handle 12, so that the positioning rod 13 is matched with the positioning hole, and the limiting plate 16 at the front end of the positioning rod 13 is attached to the side wall of the positioning plate 11, so that the positioning rod 13 fixes the fixture 5 and keeps the pneumatic actuator body 2 stable.

[0025] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A three-stage position regulating pneumatic actuator, comprising a valve body (1), characterized in that: A pneumatic actuator body (2) is disposed at the upper end of the valve body (1), and fixed plates (3) are fixedly connected to both sides of the valve body (1), and a cross bar (4) is fixedly connected to the upper end of the fixed plate (3), and two clamps (5) are slidably connected to the upper surface of the cross bar (4), and a rotating member (17) is disposed at the upper end of one of the clamps (5); A support frame (14) is arranged on the side wall of the rotating member (17), a positioning plate (11) is arranged on the upper end of the other clamp (5), a positioning hole is opened in the middle of the positioning plate (11), and a positioning rod (13) is slidably connected in the middle of the support frame (14).

2. A three-stage position adjustment pneumatic actuator according to claim 1, characterized in that: Two limiting plates (16) are arranged outside the positioning rod (13), and springs (15) are arranged outside the two limiting plates (16).

3. A three-stage position adjustment pneumatic actuator according to claim 2, characterized in that: The middle portion of one of the limit plates (16) is fixedly connected to the outside of the positioning rod (13), and the middle portion of the other limit plate (16) is slidably connected to the outside of the positioning rod (13).

4. A three-stage position regulating pneumatic actuator according to claim 1, characterized in that: One end of the positioning rod (13) is fixedly connected to a handle (12), and the positioning rod (13) and the positioning hole cooperate with each other.

5. A three-stage position adjustment pneumatic actuator according to claim 1, characterized in that: The middle part of the cross bar (4) is rotatably connected to a threaded rod (9), the outer part of the threaded rod (9) is threadably connected to two threaded blocks (10), and the upper end of the threaded block (10) is fixedly connected to the lower end of the clamp (5).

6. A three-stage position regulating pneumatic actuator according to claim 1, characterized in that: A knob (8) is provided at one end of the cross bar (4), and a side wall of the knob (8) is fixedly connected to one end of a threaded rod (9).

7. A three-stage position regulating pneumatic actuator according to claim 1, characterized in that: The side wall of the pneumatic actuator body (2) is provided with a first air inlet (6) and a second air inlet (7).

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