Adjustable pneumatic actuator

Abstract

The utility model provides an adjustable pneumatic actuator, and belongs to the technical field of pneumatic actuators. The adjustable pneumatic actuator comprises a mounting structure and an adjusting structure, the mounting structure comprises an air cylinder body, two first L-shaped mounting plates, a second L-shaped mounting plate, a first screw rod, a second screw rod and a mounting hole, the two first L-shaped mounting plates are oppositely arranged on one side of the air cylinder body, and the second L-shaped mounting plates are oppositely arranged on the other side of the air cylinder body. The second L-shaped mounting plates are connected with the first L-shaped mounting plates in a sliding mode, and the two first L-shaped mounting plates are connected with the air cylinder body through the first screw rods. According to the adjustable pneumatic actuator, the mounting position and the mounting height of the pneumatic actuator can be conveniently adjusted, the practicability of the device is improved, meanwhile, the movement distance and the movement speed of the piston can be conveniently adjusted, and therefore the opening degree and the opening speed of a valve can be conveniently adjusted.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pneumatic actuators, in particular, to an adjustable pneumatic actuator. BACKGROUND

[0002] In many industrial scenarios, the control of valves often requires flexibility and accuracy, however, the existing pneumatic actuators fail to provide sufficient adjustability and intuitive state observation methods. This leads to the inability to meet the flexibility requirements of valve control under certain specific operation requirements, and it is also difficult for operators to accurately understand the specific amplitude of valve switching.

[0003] To this end, Chinese Patent Application No. CN202420510521.0 discloses an adjustable pneumatic actuator, which comprises a cylinder body and end covers arranged at both ends of the cylinder body. The front end of the cylinder body is provided with an air inlet hole. A gear shaft is rotatably arranged in the middle of the inner cavity of the cylinder body. Pistons are arranged at the left and right ends of the inner cavity of the cylinder body. The inner ends of the pistons at both ends are provided with piston arms located on both sides of the gear shaft, and transmission teeth engaged with the gear shaft are arranged on the two piston arms. A reset assembly is arranged between the piston and the inner end of the end cover. An adjusting screw for adjusting the piston stroke is threadedly connected to the end cover. The utility model has the advantages of flexible control of the opening degree of the valve and convenient observation of the state of the valve compared with the prior art.

[0004] However, the above-mentioned scheme still has the following disadvantages: during installation of the pneumatic actuator, the installation position is fixed, and it is not easy to adjust the installation position according to the requirements, and it is not easy to adjust the installation height, thereby reducing the practicability of the device. CONTENT OF THE UTILITY MODEL

[0005] In order to make up for the above shortcomings, the present application provides an adjustable pneumatic actuator, which aims to improve the problem that the installation position of the pneumatic actuator is fixed during installation, it is not easy to adjust the installation position according to the requirements, and it is not easy to adjust the installation height, thereby reducing the practicability of the device.

[0006] The embodiment of the present application provides a kind of adjustable pneumatic actuator, including installation structure and adjusting structure, the installation structure includes cylinder body, two first L-shaped mounting plate, second L-shaped mounting plate, first screw rod, second screw rod and mounting hole, two the first L-shaped mounting plate is oppositely arranged in the side of the cylinder body, the second L-shaped mounting plate is slidably connected with the first L-shaped mounting plate, two the first L-shaped mounting plate is connected with the cylinder body by the first screw rod, the second L-shaped mounting plate is fixed with the first L-shaped mounting plate by the second screw rod, the second L-shaped mounting plate side is provided with a plurality of mounting holes, the adjusting structure includes end cover, gear shaft, gear, toothed plate, two pistons, fixed plate, reset component and adjusting component, the cylinder body both sides are provided with the end cover, the gear shaft is rotatably connected with the cylinder body, the gear is connected with the gear shaft, two the piston is slidably connected with the cylinder body, two the piston side is provided with the toothed plate, the toothed plate is engaged with the gear, the fixed plate is arranged on the piston side, the reset component is connected with the fixed plate and the adjusting component respectively, and the adjusting component is connected with the end cover.

[0007] In a specific embodiment, the reset component includes a spring, a slide rod, and a fixed rod. The slide rod is slidably connected with the fixed rod. The slide rod is connected with the fixed plate. The spring is connected with the fixed plate.

[0008] In the above implementation process, the spring, the slide rod, and the fixed rod are arranged to conveniently drive the piston to reset and conveniently limit the movement of the piston.

[0009] In a specific embodiment, the adjusting component includes an adjusting screw rod and a moving plate. The adjusting screw rod is threadedly connected with the end cover. The adjusting screw rod is rotatably connected with the moving plate. The fixed rod is connected with the moving plate. The spring is connected with the moving plate.

[0010] In the above implementation process, the adjusting screw rod and the moving plate are arranged to conveniently adjust the movement distance and the movement speed of the piston, so as to conveniently adjust the opening degree and the opening speed of the valve.

[0011] In a specific embodiment, a bearing is embedded on one side of the moving plate. One end of the adjusting screw rod is interference-fitted with the inner ring of the bearing.

[0012] In the above implementation process, one end of the adjusting screw rod is interference-fitted with the inner ring of the bearing to conveniently rotatably connect the adjusting screw rod with the moving plate and conveniently drive the moving plate to move.

[0013] In a specific embodiment, a plurality of screw holes are uniformly arranged on one side of the first L-shaped mounting plate. The second screw rod is threadedly connected with the screw holes.

[0014] In the implementation process, the second screw is screwed with the screw hole, so that the distance between the first L-shaped mounting plate and the second L-shaped mounting plate can be adjusted conveniently, and the installation height of the pneumatic actuator can be adjusted conveniently.

[0015] In a specific embodiment, the cylinder body is provided with a limiting ring, and the piston is attached to the limiting ring.

[0016] In the implementation process, the piston is attached to the limiting ring, so that the position of the piston can be limited conveniently.

[0017] In a specific embodiment, the cylinder body is provided with an air inlet hole on one side.

[0018] In the implementation process, the cylinder body is provided with an air inlet hole on one side, so that air can be conveniently introduced.

[0019] Compared with the prior art, the beneficial effects of the present application are as follows: through the provision of the two first L-shaped mounting plates, the second L-shaped mounting plate, the first screw, the second screw and the mounting hole, the installation position and the installation height of the pneumatic actuator can be adjusted conveniently, and the practicability of the device is improved; through the provision of the adjusting assembly, the movement distance and the movement speed of the piston can be adjusted conveniently, so that the opening degree and the opening speed of the valve can be adjusted conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0021] Figure 1 is a schematic diagram of the adjustable pneumatic actuator structure provided by the embodiments of the present application;

[0022] Figure 2 is a schematic diagram of the side view structure of the adjustable pneumatic actuator provided by the embodiments of the present application;

[0023] Figure 3 is a schematic diagram of the cross-sectional structure of the adjustable pneumatic actuator provided by the embodiments of the present application;

[0024] Figure 4 is a schematic diagram of the adjusting structure provided by the embodiments of the present application.

[0025] In the figure: 10-mounting structure; 110-cylinder body; 120-first L-shaped mounting plate; 130-second L-shaped mounting plate; 140-first screw; 150-second screw; 160-mounting hole; 170-screw hole; 180-limiting ring; 20-adjusting structure; 210-end cover; 220-gear shaft; 230-gear; 240-toothed plate; 250-piston; 260-fixed plate; 270-return assembly; 271-spring; 272-sliding rod; 273-fixed rod; 280-adjusting assembly; 281-adjusting screw; 282-moving plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments.

[0027] Please refer to Figure 1 , the present application provides an adjustable pneumatic actuator, comprising a mounting structure 10 and an adjusting structure 20.

[0028] Please refer to Figure 1 , Figure 2 and Figure 3 , the mounting structure 10 comprises a cylinder body 110, two first L-shaped mounting plates 120, a second L-shaped mounting plate 130, a first screw 140, a second screw 150 and a mounting hole 160, the two first L-shaped mounting plates 120 are arranged opposite on one side of the cylinder body 110, the second L-shaped mounting plate 130 is in sliding connection with the first L-shaped mounting plate 120, the two first L-shaped mounting plates 120 are connected with the cylinder body 110 through the first screw 140, the second L-shaped mounting plate 130 is fixed with the first L-shaped mounting plate 120 through the second screw 150, and a plurality of mounting holes 160 are formed through one side of the second L-shaped mounting plate 130.

[0029] In the specific setting, a plurality of screw holes 170 are uniformly formed through one side of the first L-shaped mounting plate 120, and the second screw 150 is in threaded connection with the screw hole 170, wherein the threaded connection of the second screw 150 with the screw hole 170 can conveniently adjust the distance between the first L-shaped mounting plate 120 and the second L-shaped mounting plate 130, so as to conveniently adjust the installation height of the pneumatic actuator.

[0030] In the specific setting, an air inlet hole is formed through one side of the cylinder body 110, wherein the air inlet hole formed through one side of the cylinder body 110 can conveniently admit air.

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The adjusting structure 20 comprises an end cover 210, a gear shaft 220, a gear 230, a toothed plate 240, two pistons 250, a fixing plate 260, a reset assembly 270 and an adjusting assembly 280, the end cover 210 is arranged on the two sides of the cylinder body 110, the gear shaft 220 is rotationally connected with the cylinder body 110, the gear 230 is connected with the gear shaft 220, the two pistons 250 are slidingly connected with the cylinder body 110, the toothed plate 240 is arranged on one side of each of the two pistons 250, the toothed plate 240 is engaged with the gear 230, the fixing plate 260 is arranged on one side of the piston 250, the reset assembly 270 is connected with the fixing plate 260 and the adjusting assembly 280 respectively, the adjusting assembly 280 is connected with the end cover 210, and the lower end of the gear shaft 220 is connected with the valve.

[0032] In the specific arrangement, the reset assembly 270 comprises a spring 271, a sliding rod 272 and a fixing rod 273, the sliding rod 272 is slidingly connected with the fixing rod 273, the sliding rod 272 is connected with the fixing plate 260, and the spring 271 is connected with the fixing plate 260, wherein the arrangement of the spring 271, the sliding rod 272 and the fixing rod 273 can conveniently drive the piston 250 to reset and conveniently limit the movement of the piston 250.

[0033] In the specific arrangement, the adjusting assembly 280 comprises an adjusting screw 281 and a moving plate 282, the adjusting screw 281 is threadedly connected with the end cover 210, the adjusting screw 281 is rotationally connected with the moving plate 282, the fixing rod 273 is connected with the moving plate 282, and the spring 271 is connected with the moving plate 282, wherein the arrangement of the adjusting screw 281 and the moving plate 282 can conveniently adjust the movement distance and the movement speed of the piston 250, so as to conveniently adjust the opening degree and the opening speed of the valve.

[0034] In the specific arrangement, a bearing is embedded on one side of the moving plate 282, and one end of the adjusting screw 281 is interference-fitted with an inner ring of the bearing, wherein the interference-fitting of one end of the adjusting screw 281 with the inner ring of the bearing can conveniently rotationally connect the adjusting screw 281 with the moving plate 282 and conveniently drive the moving plate 282 to move.

[0035] In the specific arrangement, a limiting ring 180 is arranged in the cylinder body 110, and the piston 250 is attached to the limiting ring 180, wherein the attachment of the piston 250 to the limiting ring 180 can conveniently limit the position of the piston 250.

[0036] The working principle of the adjustable pneumatic actuator is as follows: when the adjustable pneumatic actuator is used, the installation position and the installation height of the pneumatic actuator are adjusted conveniently through the arrangement of the two first L-shaped mounting plates 120, the second L-shaped mounting plate 130, the first screw rod 140, the second screw rod 150 and the mounting hole 160, the practicability of the device is improved, the movement distance and the movement speed of the piston 250 are adjusted conveniently by rotating the adjusting screw rod 281 to drive the moving plate 282 to move, so that the spring 271 is loosened or extruded, and the opening degree and the opening speed of the valve are adjusted conveniently.

[0037] It should be noted that the specific model and specifications of the cylinder block 110 need to be selected and determined according to the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in the art, so it will not be described in detail.

[0038] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An adjustable pneumatic actuator, characterized by The installation structure (10) comprises a cylinder body (110), two first L-shaped installation plates (120), a second L-shaped installation plate (130), a first screw rod (140), a second screw rod (150) and installation holes (160), the two first L-shaped installation plates (120) are oppositely arranged on one side of the cylinder body (110), the second L-shaped installation plate (130) is slidably connected with the first L-shaped installation plate (120), the two first L-shaped installation plates (120) are connected with the cylinder body (110) through the first screw rod (140), the second L-shaped installation plate (130) is fixed with the first L-shaped installation plate (120) through the second screw rod (150), and a plurality of installation holes (160) are formed in one side of the second L-shaped installation plate (130). The adjusting structure (20) comprises an end cover (210), a gear shaft (220), a gear (230), a toothed plate (240), two pistons (250), a fixed plate (260), a reset assembly (270) and an adjusting assembly (280), the end cover (210) is arranged on both sides of the cylinder body (110), the gear shaft (220) is rotatably connected with the cylinder body (110), the gear (230) is connected with the gear shaft (220), the two pistons (250) are slidably connected with the cylinder body (110), the two pistons (250) are provided with the toothed plate (240) on one side, the toothed plate (240) is engaged with the gear (230), the fixed plate (260) is arranged on one side of the piston (250), the reset assembly (270) is connected with the fixed plate (260) and the adjusting assembly (280) respectively, and the adjusting assembly (280) is connected with the end cover (210). The reset assembly (270) comprises a spring (271), a sliding rod (272) and a fixed rod (273), the sliding rod (272) is slidably connected with the fixed rod (273), the sliding rod (272) is connected with the fixed plate (260), and the spring (271) is connected with the fixed plate (260).

2. An adjustable pneumatic actuator according to claim 1, wherein The adjusting assembly (280) comprises an adjusting screw rod (281) and a moving plate (282), the adjusting screw rod (281) is threadedly connected with the end cover (210), the adjusting screw rod (281) is rotatably connected with the moving plate (282), the fixed rod (273) is connected with the moving plate (282), and the spring (271) is connected with the moving plate (282).

3. An adjustable pneumatic actuator according to claim 2, wherein, A bearing is embedded on one side of the moving plate (282), and one end of the adjusting screw rod (281) is in interference fit with an inner ring of the bearing.

4. An adjustable pneumatic actuator according to claim 3, wherein A plurality of screw holes (170) are uniformly formed in one side of the first L-shaped installation plate (120), and the second screw rod (150) is threadedly connected with the screw hole (170).

5. An adjustable pneumatic actuator according to claim 1, wherein, A limiting ring (180) is arranged in the cylinder body (110), and the piston (250) is attached to the limiting ring (180).

6. An adjustable pneumatic actuator according to claim 1, wherein, ​ 7. An adjustable pneumatic actuator according to claim 1 wherein, The air cylinder body (110) is provided with an air inlet hole on one side.

Images