Pneumatic actuator with buffer structure

Abstract

The utility model relates to the technical field of execution devices, in particular to a pneumatic actuator with a buffer structure, which comprises an actuator, and two fixing rods are fixedly connected to the surface of the top end of the actuator. A reset buffer sliding mechanism in the actuator is connected with the valve, and a fixing plate at the top end of an actuator shell is connected with a fixing structure, so that in the opening and closing process of the valve, shaking, generated by impact force, of the valve synchronously displaces in the actuator; therefore, the situation that actuator equipment is damaged due to the fact that large impact force impacts the colloid buffering structure for a long time can be reduced, the service life of the starting actuator is prolonged, and maintenance cost is reduced.

Description

Technical Field

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

[0002] Pneumatic actuators are devices 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.

[0003] Existing pneumatic actuators generally need to be arranged within the travel range of the workstation, so they often use oil pressure buffers and colloid elastic pads as stop limit structures. However, after long-term use, the buffer device will be deformed or even damaged due to the huge impact force generated by the valve opening and closing, so it needs to be regularly inspected and replaced, which has a high maintenance cost. To this end, we propose a pneumatic actuator with a buffer structure. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a pneumatic actuator with a buffer structure.

[0005] The technical solution adopted by the utility model to solve the technical problem is a pneumatic actuator with a buffer structure, comprising an actuator, the top surface of the actuator is fixedly connected with two fixing rods, the top ends of the fixing rods are fixedly connected to the bottom end of a fixing plate, and the surface of the fixing plate is provided with a plurality of through holes;

[0006] A limiting slot is provided at the inner top of the actuator, and the limiting slot is internally slidably connected to a limiting slider, a connecting rod is fixedly connected to the center of the bottom end of the limiting slider, the bottom end of the connecting rod is fixedly connected to the top end of the reset connecting block, a through connecting pipe is fixedly connected to the bottom end of the reset connecting block, and one end of a reset spring is fixedly connected to both sides of the reset connecting block.

[0007] By adopting the above technical solution, the reset buffer sliding mechanism inside the actuator is connected to the valve and the fixed plate at the top of the actuator housing is connected to the fixed structure, so that during the valve opening and closing process, the shaking of the valve caused by the impact force is synchronously displaced inside the starting actuator, thereby reducing the damage to the actuator equipment due to the long-term impact of the colloid buffer structure by a large impact force, thereby increasing the service life of the starting actuator and reducing maintenance costs.

[0008] Specifically, a matching sliding plate for cooperating with the sliding of the through-connecting pipe is arranged inside the sliding groove at the bottom end of the actuator.

[0009] By adopting the above technical solution, the sliding plate is engaged to shrink and move along with the sliding of the reset connection block, thereby preventing external dust from entering the interior of the actuator.

[0010] Specifically, an auxiliary resetting pusher for assisting resetting is installed on the side wall of the actuator.

[0011] By adopting the above technical solution, the auxiliary resetting pusher is used to help reset the internal resetting connection block.

[0012] Specifically, a valve is passed through and fixedly connected to the bottom end of the through-connecting pipe.

[0013] By adopting the above technical solution, the valve is connected through the through-connecting pipe so that when the valve is connected, the starting mechanism can move along with the valve as the valve is opened or closed.

[0014] Specifically, one end of the reset spring away from the reset connection block is fixedly connected to the inner wall of the actuator.

[0015] By adopting the above technical solution, the other end is fixed in the inner wall of the actuator so that it can be quickly reset after buffering.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The technical solution of the present application, through the design of the actuator, fixed rod, fixed plate, through-connecting pipe, valve, reset connecting block, connecting rod, limit slider and limit slide groove, allows the shaking of the valve caused by the impact force to be synchronously displaced inside the starting actuator during the valve opening and closing process, thereby reducing the damage to the actuator equipment caused by the long-term impact of the colloid buffer structure due to a large impact force, thereby increasing the service life of the starting actuator and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is an axonometric drawing of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structural connection of the utility model;

[0021] Figure 3 This is a schematic diagram of the bottom structure of the actuator of the utility model;

[0022] In the figure: 1. actuator; 2. fixing rod; 3. fixing plate; 4. through hole; 5. auxiliary reset pusher; 6. through connecting pipe; 7. valve; 8. reset connecting block; 9. fitting sliding plate; 10. reset spring; 11. connecting rod; 12. limit slider; 13. limit slide groove. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figure 1-3 The embodiment of the utility model provides a technical solution: a pneumatic actuator with a buffer structure, comprising an actuator 1, two fixing rods 2 are fixedly connected to the top surface of the actuator 1, the top ends of the fixing rods 2 are fixedly connected to the bottom ends of the fixing plates 3, and a plurality of through holes 4 are opened on the surface of the fixing plates 3;

[0025] A limiting groove 13 is provided at the inner top of the actuator 1, and a limiting slider 12 is slidably connected to the inner side of the limiting groove 13. A connecting rod 11 is fixedly connected to the center of the bottom end of the limiting slider 12. The bottom end of the connecting rod 11 is fixedly connected to the top of the reset connecting block 8. The bottom end of the reset connecting block 8 is fixedly connected to a through connecting pipe 6, and one end of a reset spring 10 is fixedly connected to both sides of the reset connecting block 8.

[0026] When in use, the reset buffer sliding mechanism inside the actuator 1 is connected to the valve 7, and the outer shell of the actuator 1 is connected to the fixed structure through the fixed plate 3. Therefore, during the opening and closing process of the valve 7, the shaking of the valve 7 caused by the impact force is synchronously displaced inside the starting actuator 1, thereby reducing the damage to the actuator 1 caused by the long-term impact of the colloid buffer structure due to a large impact force, thereby increasing the service life of the starting actuator 1 and reducing maintenance costs.

[0027] As shown in the figure, a fitting sliding plate 9 is arranged inside the sliding groove at the bottom end of the actuator 1 for sliding with the through-connecting pipe 6 .

[0028] When in use, the sliding plate 9 is engaged with the sliding connection block 8 to shrink and move as it slides, thereby preventing external dust from entering the actuator 1.

[0029] As shown in the figure, an auxiliary reset pusher 5 for auxiliary reset is installed on the side wall of the actuator 1.

[0030] When in use, the auxiliary resetting pusher 5 helps to reset the internal resetting connection block 8 .

[0031] As shown in the figure, a valve 7 is passed through and fixedly connected to the bottom end of the through-connecting pipe 6 .

[0032] When in use, the valve 7 is connected through the through-connecting pipe 6 so that when connected, the starting mechanism can move along with the valve 7 as the valve 7 is opened or closed.

[0033] As shown in the figure, one end of the reset spring 10 away from the reset connection block 8 is fixedly connected to the inner wall of the actuator 1 .

[0034] When in use, the other end is fixed to the inner wall of the actuator 1 so that it can be quickly reset after buffering.

[0035] The working principle and use process of the utility model are as follows: first, the through-connecting pipe 6 is connected to the valve 7, the actuator 1 is aligned with the fixed structure through the fixing plate 3 at the top of the fixing rod 2, and the fixing part is passed through the through-hole 4 and the fixing structure to complete the connection and fixation of the entire equipment. Then, during use, the reset connecting block 8 at the bottom end of the actuator 1 is driven to slide and displace by the impact force generated by the valve 7 through the through-connecting pipe 6, and the reset connecting block 8 slides inside the limit sliding groove 13 through the limit sliding block 12 fixedly connected by the connecting rod 11 to ensure the stability of the sliding position, and then the reset buffer rod and the reset spring 10 in the auxiliary reset pushing member 5 rebound and push the reset connecting block 8 to reset, completing the overall reset buffer function, so that when the actuator 1 is in a fixed position, it can reduce the impact of the impact force generated by the valve 7 when it is turned on and off on the equipment through the internal sliding buffer structure.

[0036] The above shows and describes the basic principles, 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 in the specification are only to illustrate the principles of 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 protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pneumatic actuator with a buffer structure, characterized in that: It comprises an actuator (1), the top surface of the actuator (1) being fixedly connected to two fixing rods (2), the top ends of the fixing rods (2) being fixedly connected to the bottom ends of a fixing plate (3), and the surface of the fixing plate (3) being provided with a plurality of through holes (4); A limit slide groove (13) is provided at the internal top of the actuator (1), and the limit slide groove (13) is internally slidably connected to a limit slider (12), and a connecting rod (11) is fixedly connected to the center of the bottom end of the limit slider (12), and the bottom end of the connecting rod (11) is fixedly connected to the top end of the reset connection block (8), and the bottom end of the reset connection block (8) is fixedly connected to a through connection pipe (6), and one end of a reset spring (10) is fixedly connected to both sides of the reset connection block (8).

2. A pneumatic actuator with a buffer structure according to claim 1, characterized in that: A matching sliding plate (9) is arranged inside the sliding groove at the bottom end of the actuator (1) and is used to slide with the through-connecting pipe (6).

3. The pneumatic actuator with a buffer structure according to claim 1, characterized in that: An auxiliary resetting pusher (5) for assisting resetting is installed on the side wall of the actuator (1).

4. The pneumatic actuator with a buffer structure according to claim 1, characterized in that: The bottom end of the through-connecting pipe (6) is penetrated and fixedly connected with a valve (7).

5. The pneumatic actuator with a buffer structure according to claim 1, characterized in that: One end of the reset spring (10) away from the reset connection block (8) is fixedly connected to the inner wall of the actuator (1).

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