CN210860008U

CN210860008U - Pneumatic actuator

Info

Publication number: CN210860008U
Application number: CN201921534001.9U
Authority: CN
Inventors: 章雄
Original assignee: Ruili Fluid Control Wuxi Co Ltd
Current assignee: Ruili Fluid Control Wuxi Co Ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-06-26
Anticipated expiration: 2029-09-16

Abstract

The utility model relates to a pneumatic actuator technical field, specific pneumatic actuator that says so, which comprises an outer shell body, the left and right sides of shell body is the open-type setting, both ends opening part is equipped with left end lid and right-hand member lid respectively about the shell body, both ends opening part is outer along all being equipped with interlock portion I about the shell body, left end lid and right-hand member lid are close to shell body tip department cooperation interlock portion I and have seted up interlock portion II, I outer wall in interlock portion has still all cemented sealing rubber pad I, and at first three air flue outer end and external air supply switch-on that corresponds, when gaseous from the upper portion air flue gets into the shell body inside, the activity stopper of both sides can remove towards left end lid and right-hand member lid respectively to can drive two racks and move left and right respectively, and then can control the rotation axis and.

Description

Pneumatic actuator

Technical Field

The utility model relates to a pneumatic actuator technical field, specific pneumatic actuator that says so.

Background

The pneumatic actuator is an actuating device for driving the opening and closing or adjusting valve by using air pressure, is called a pneumatic actuating mechanism or a pneumatic device, is generally called a pneumatic head, is complex in structure mostly, has obvious noise, and is arranged on one side to cause disorder of an internal air pipe.

To this end, patent application No. CN201721059305.5 proposes a pneumatic actuator, which includes a housing, wherein an inner cavity of the housing is provided with a first air chamber, one end of the first air chamber is provided with a first piston, and the other end of the first air chamber is provided with a second piston, a side wall of the first piston is provided with a first transmission device, and a side wall of the second piston is provided with a second transmission device. Above-mentioned scheme is through being equipped with the dehumidification board, the effectual aqueous vapor that has reduced the inside first air chamber of pneumatic actuator, be favorable to increase of service life, the security has been improved, through being equipped with the spring, it is more steady to make first piston and second piston when removing, the stability has been improved, set up first nozzle through the casing both ends and set up the second nozzle with the top, the pneumatic actuator gas motion direction is simplified, the inner structure has been simplified, the production cost is reduced, through being equipped with first muffler and second muffler, be favorable to reducing in the course of the work because admit air with the noise that the exhaust produced.

However, the above solution has drawbacks in use:

the scheme can not be quickly assembled and disassembled, so that the maintenance and replacement cost of parts is high; meanwhile, the scheme lacks a sealing structure, so that the condition of air leakage is easily caused, the use effect is poor, and the improvement treatment is needed.

SUMMERY OF THE UTILITY MODEL

In order to make up for the above insufficiency, the utility model provides a pneumatic actuator to solve the problem among the above-mentioned background art.

The technical scheme of the utility model is that: a pneumatic actuator comprises an outer shell with the left side and the right side arranged in an open manner, wherein the left side and the right side of the outer shell are arranged in an open manner, a left end cover and a right end cover are respectively arranged at openings at the left end and the right end of the outer shell, the outer edges of the openings at the left end and the right end of the outer shell are respectively provided with an occlusion part I, the positions, close to the end part of the outer shell, of the left end cover and the right end cover are matched with the occlusion part I to be provided with an occlusion part II, sealing rubber gaskets I are respectively adhered to the outer wall of the occlusion part I, connecting lugs are respectively welded on the upper outer wall and the lower outer wall of the left end cover and the right end cover in a uniform integration manner, screw rods are respectively installed between the left connecting lug and the right connecting lug in a threaded manner, nuts are respectively installed on the outer walls at the two ends of the, two the equal straggly of activity stopper opposite side installs the rack, two rack tooth is relative, the back wall rotates through the bearing and is connected with the rotation axis in the shell body, the welding of rotation axis outer wall has the toothed disc with rack toothing, the through-hole has been seted up to the shell body antetheca, glue inherently hug closely in the through-hole in the polyurethane rubber circle of rotation axis, control two the slider is all installed through the bolt to the activity stopper outer wall, the shell body about the inner wall all seted up with slider assorted slide rail, and two the spring is still all installed through the bolt to the activity stopper outer wall, the left and right sides the spring end supports tightly respectively in left end lid and right-hand member lid inner wall.

According to the device, the outer ends of the three air passages are communicated with an external corresponding air source, when air enters the outer shell from the upper air passage, the movable plugs on the two sides can move towards the left end cover and the right end cover respectively, so that the two racks can be driven to move leftwards and rightwards respectively, the rotating shaft can be controlled to drive the external valve to be opened, sealing rubber sleeves tightly attached to the inner wall of the outer shell are adhered to the outer walls of the movable plugs, and the sealing performance between the movable plugs and the inner wall of the outer shell can be improved through the sealing rubber sleeves; when gas enters the outer shell from the air passages arranged on the left side and the right side, the movable plugs on the two sides are driven to be close, so that the two racks can move leftwards and rightwards respectively, and the rotating shaft can be controlled to drive the external valve to be closed; the whole actuator has good sealing performance and is convenient to disassemble quickly, particularly, an occlusion part II is formed at the part, close to the end part of the outer shell, of the left end cover and the right end cover in a matching way, of the occlusion part I, and a sealing rubber pad I is further cemented on the outer wall of the occlusion part I, so that the left end cover and the right end cover can be better sealed with the outer shell through the matching of the occlusion part I, the occlusion part II and the sealing rubber pad I; the left end cover and the right end cover are welded with the connecting lugs in an integrated mode, the screw rods are installed between the two adjacent connecting lugs in a threaded mode, nuts are installed on the outer walls of the two end portions of the two screw rods in a threaded mode, and the left end cover, the right end cover and the outer shell can be installed and disassembled fast through the matching of the screw rods, the two nuts and the connecting lugs.

As a preferred scheme, the air passages are all provided with electromagnetic valves, and the outer ends of the three air passages are all communicated with an external air source.

The control mode of the electromagnetic valve is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of the power supply also belongs to the common knowledge in the art, and detailed description is omitted here, the air passage is communicated with the external air source, and the control mode is the prior art, and detailed description is omitted here.

Preferably, the inner walls of the left end cover and the right end cover are both adhered with silica gel layers, and the thickness of each silica gel layer is 1 MM.

This setting can play the rust-resistant effect of moisture absorption with the help of the silica gel layer, reduces the possibility that shell body inner structure produced the corrosion.

According to the preferable scheme, a sealing rubber pad II is adhered to the inner wall of the sliding rail, and the outer wall of the sliding block is attached to the sealing rubber pad II.

This setting can increase the leakproofness of slide rail and slider sliding connection in-process with the help of sealing rubber pad II, and then increases the sealing performance between activity stopper and the shell body.

Preferably, the rotating shaft extends to the front side of the outer shell and is provided with an external valve.

The connection between the valve and the rotating shaft in this arrangement is within the scope of the prior art and will not be further described herein.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the overall external structure of fig. 1 according to the present invention;

fig. 3 is a schematic view of a part of an enlarged structure at a in fig. 1 according to the present invention.

Wherein the reference numerals are summarized as follows: 1. an outer housing; 101. a slide rail; 2. a left end cap; 3. a right end cap; 4. an occlusion part I; 5. an occlusion part II; 6. connecting lugs; 7. a screw; 8. a nut; 9. an airway; 10. a movable plug; 11. sealing the rubber sleeve; 12. a rack; 13. a rotating shaft; 14. a polyurethane rubber ring; 15. a slider; 16. a spring; 17. an electromagnetic valve; 18. a sealing rubber pad I; 19. a sealing rubber pad II; 20. and (5) a silica gel layer.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Referring to fig. 1-3, the pneumatic actuator of the present invention comprises an outer casing 1 with both left and right sides open, wherein both left and right sides of the outer casing 1 are open, the left and right openings of the left and right ends of the outer casing 1 are respectively provided with a left end cap 2 and a right end cap 3, the outer edges of the left and right openings of the outer casing 1 are respectively provided with an occlusion part i 4, the end parts of the left end cap 2 and the right end cap 3 close to the outer casing 1 are respectively provided with an occlusion part ii 5 in cooperation with the occlusion part i 4, the outer wall of the occlusion part i 4 is also respectively adhered with a sealing rubber pad i 18, the upper and lower outer walls of the left end cap 2 and the right end cap 3 are respectively welded with a connecting lug 6, a screw 7 is threadedly mounted between the left and right adjacent connecting lugs 6, the outer walls of both ends of the two screws 7 are threadedly mounted with nuts 8, the middle parts of the left end, the left inner wall and the right inner wall of the outer shell 1 are both provided with movable plugs 10, the outer walls of the movable plugs 10 are both cemented with sealing rubber sleeves 11 tightly attached to the inner wall of the outer shell 1, racks 12 are respectively arranged on the opposite sides of the two movable plugs 10 in a staggered manner through bolts, the two racks 12 are opposite in tooth, the inner rear wall of the outer shell 1 is rotatably connected with a rotating shaft 13 through a bearing, a gear disc meshed with the rack 12 is welded on the outer wall of the rotating shaft 13, the front wall of the outer shell 1 is provided with a through hole, a polyurethane rubber ring 14 tightly attached to the rotating shaft 13 is adhered in the through hole, the outer walls of the left and right movable plugs 10 are respectively provided with a slide block 15 through bolts, the upper and lower inner walls of the outer shell 1 are respectively provided with a slide rail 101 matched with the slide block 15, and two the activity stopper 10 outer wall still all installs spring 16 through the bolt, the left and right sides the 16 end of spring support tightly in left end lid 2 and the 3 inner walls of right-hand member lid respectively. The air passages 9 are all provided with electromagnetic valves 17, the outer ends of the three air passages 9 are communicated with an external air source, and the air passages 9 are communicated with the external air source and controlled in the prior art, so that details are not repeated. And silica gel layers 20 are further adhered to the inner walls of the left end cover 2 and the right end cover 3, and the thickness of each silica gel layer 20 is 1 MM. And a sealing rubber pad II 19 is adhered to the inner wall of the sliding rail 101, and the outer wall of the sliding block 15 is attached to the sealing rubber pad II 19. The rotating shaft 13 extends to the front side of the outer shell 1 and is provided with an external valve.

In order to better understand the utility model by those skilled in the art, the working process of the utility model is briefly described with reference to the attached drawings: the external air source corresponding to the three air passages 9 is communicated with the external air source, when air enters the outer shell 1 from the upper air passage 9, the movable plugs 10 on the two sides can move towards the left end cover 2 and the right end cover 3 respectively, so that the two racks 12 can be driven to move leftwards and rightwards respectively, the rotating shaft 13 can be controlled to drive the external valve to open, the sealing rubber sleeves 11 tightly attached to the inner wall of the outer shell 1 are fixedly attached to the outer walls of the movable plugs 10, and the sealing performance between the movable plugs 10 and the inner wall of the outer shell 1 can be improved through the sealing rubber sleeves 11; when gas enters the outer shell 1 from the air passages 9 arranged on the left side and the right side, the movable plugs 10 on the two sides are driven to be close, so that the two racks 12 can move leftwards and rightwards respectively, and the rotating shaft 13 can be controlled to drive the external valve to be closed; the whole actuator has good sealing performance and is convenient to disassemble quickly, specifically, an occlusion part II 5 is arranged at the part, close to the end part of the outer shell 1, of the left end cover 2 and the right end cover 3 in a matching way, of the occlusion part I4, and a sealing rubber pad I18 is further adhered to the outer wall of the occlusion part I4, so that the left end cover 2 and the right end cover 3 can be better sealed with the outer shell 1 through the matching of the occlusion part I4, the occlusion part II 5 and the sealing rubber pad I18; the upper outer wall and the lower outer wall of the left end cover 2 and the right end cover 3 are welded with the connecting lugs 6 in an integrated mode, a screw rod 7 is installed between the two adjacent connecting lugs 6 in a threaded mode, nuts 8 are installed on the outer walls of the two end portions of the two screw rods 7 in an all-threaded mode, and the left end cover 2 and the right end cover 3 can be installed and detached with the outer shell 1 fast through the matching of the screw rods 7, the two nuts 8 and the connecting lugs 6.

It should be noted that the specific type of the electromagnetic valve 17 needs to be calculated according to the specific specification of the setting, and the corresponding calculation method belongs to the prior art in this field, and therefore is not described again.

The control mode of the electromagnetic valve 17 is automatically controlled by a controller, a control circuit of the controller can be realized by simple programming of a person skilled in the art, and the supply of the power supply also belongs to the common knowledge in the field and is not described in detail herein.

The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pneumatic actuator, includes shell body (1) that the equal open-type in left and right sides set up, its characterized in that: the air-conditioning structure is characterized in that a left end cover (2) and a right end cover (3) are respectively arranged at openings at the left end and the right end of the outer shell (1), an occlusion part I (4) is respectively arranged at the outer edges of the left end opening and the right end opening of the outer shell (1), an occlusion part II (5) is arranged at the positions, close to the end part of the outer shell (1), of the left end cover (2) and the right end cover (3) and matched with the occlusion part I (4), sealing rubber pads I (18) are further respectively cemented on the outer wall of the occlusion part I (4), connecting lugs (6) are further welded on the upper outer wall and the lower outer wall of the left end cover (2) and the right end cover (3) in an integrated mode, a screw rod (7) is installed in a threaded mode between the left connecting lug (6) and the right connecting lug (6), nuts (8) are installed in the outer walls, the inner wall all is provided with movable stopper (10) about shell body (1), the sealed rubber cover (11) of hugging closely in shell body (1) inner wall is all glued to activity stopper (10) outer wall, two rack (12) are installed through the bolt to activity stopper (10) opposite side all straggly, two rack (12) tooth is relative, the back wall rotates through the bearing in shell body (1) and is connected with rotation axis (13), rotation axis (13) outer wall welding has the toothed disc with rack (12) meshing, the shell body (1) antetheca has seted up the through-hole, the polyurethane rubber circle (14) of clinging closely in rotation axis (13) is glued in the through-hole, and two about the activity stopper (10) outer wall all installs slider (15) through the bolt, slider (15) assorted slide rail (101) are all seted up with slider (15) to the upper and lower inner wall of shell body (, and two springs (16) are arranged on the outer walls of the movable plugs (10) through bolts, and the tail ends of the springs (16) on the left side and the right side are respectively tightly propped against the inner walls of the left end cover (2) and the right end cover (3).

2. A pneumatic actuator according to claim 1, wherein: still all install solenoid valve (17) on air flue (9), three air flue (9) outer end still all communicates with external air supply.

3. A pneumatic actuator according to claim 1, wherein: and silica gel layers (20) are further adhered to the inner walls of the left end cover (2) and the right end cover (3), and the thickness of each silica gel layer (20) is 1 MM.

4. A pneumatic actuator according to claim 1, wherein: and a sealing rubber pad II (19) is adhered to the inner wall of the sliding rail (101), and the outer wall of the sliding block (15) is attached to the sealing rubber pad II (19).

5. A pneumatic actuator according to claim 1, wherein: the rotating shaft (13) extends to the front side of the outer shell (1) and is provided with an external valve.