CN219140003U

CN219140003U - Quick switch pneumatic actuator

Info

Publication number: CN219140003U
Application number: CN202223081938.XU
Authority: CN
Inventors: 李建云; 凌海
Original assignee: Haining Weitu Fluid Technology Co ltd
Current assignee: Haining Weitu Fluid Technology Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-06-06
Anticipated expiration: 2032-11-21

Abstract

The utility model discloses a rapid-switching pneumatic actuator, which comprises a pneumatic head, wherein two sides of the top end of the pneumatic head are respectively provided with a plurality of sealing ports for rapid exhaust, a sealing head for forming a sealed space in the pneumatic head by matching with the sealing ports is connected in a sliding manner, the top end of the sealing head is fixedly connected with a ventilation column for forming a communication state with the outside during sliding connection, the top end of the ventilation column is fixedly connected with an electric telescopic rod for driving the sealing head and the ventilation column to move, and the gas in the pneumatic actuator is rapidly exhausted by stretching the electric telescopic rod, so that the rapid exhaust is realized, the pneumatic actuator is rapidly reset to a preset position, and the control precision is increased.

Description

Quick switch pneumatic actuator

Technical Field

The utility model relates to the technical field of pneumatic actuators, in particular to a rapid-switching pneumatic actuator.

Background

The pneumatic actuator is an actuating device for driving the opening and closing or adjusting valve by air pressure, and is also called a pneumatic actuating mechanism or a pneumatic device, but is commonly called a pneumatic head.

When the traditional pneumatic head is used, compressed air enters the pneumatic actuator from the pipe nozzle A, gas pushes the double pistons to move linearly towards the two ends, a rack on the pistons drives a gear on the rotating shaft to rotate 90 degrees anticlockwise, and the valve is opened. At this time, the gas at the two ends of the pneumatic execution valve is discharged along with the B pipe nozzle. On the contrary, when compressed air enters the two ends of the pneumatic actuator from the nozzle B, the air pushes the double plugs to move linearly towards the middle, the rack on the plugs drives the gear on the rotating shaft to rotate 90 degrees clockwise, and the valve is closed. At the moment, the gas in the middle of the pneumatic actuator is discharged along with the A pipe nozzle; however, the prior art has the following disadvantages: the existing pneumatic head is low in control precision when in use, compressed gas is discharged slowly, and the pneumatic head cannot be reset to a preset position quickly after the air source is disconnected.

Disclosure of Invention

The utility model mainly aims to provide a rapid switching pneumatic actuator, which can achieve rapid exhaust to enable the pneumatic actuator to be quickly reset to a preset position, increase control precision and effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a quick switch pneumatic actuator, includes pneumatic head, a plurality of sealing mouths that are used for quick exhaust have been seted up respectively to pneumatic head top both sides, sliding connection has the airtight head that is used for the cooperation sealing mouth to make the inside airtight space that forms of pneumatic head in the sealing mouths, airtight head top fixedly connected with is used for forming the ventilative post of intercommunication state with the external world when sliding connection, ventilative post top fixedly connected with is used for driving the electric telescopic handle that sealed head and ventilative post removed, extends the gas in the quick exhaust pneumatic actuator through electric control telescopic handle to reach quick exhaust and make pneumatic actuator reset to preset position, and increase control accuracy.

Further, the side walls of two sides of the pneumatic head are fixed and are connected with an air inlet valve for quick air inlet in a penetrating way, the bottom ends of the air inlet valves are respectively communicated with two air inlet pipelines in a sealing way, one end, far away from the air inlet valves, of the air inlet pipelines is connected with the air pump in a penetrating way and is inserted into the sealing interface in a penetrating way, the sealing interface is communicated with the air pump through the connecting pipeline, and the air inlet pipeline is improved to enable the air inlet valves to be replaced by one-way valves so as to ensure faster air inlet speed, and the valve control speed of the pneumatic actuator is improved.

Further, the side wall of the top end of the sealing opening is fixedly connected with a ventilation fixing column for supporting the electric telescopic rod, and the electric telescopic rod is fixedly supported and the air in the pneumatic actuator is discharged through the ventilation fixing column.

Further, the side walls of the two sides of the pneumatic head are respectively threaded and are hermetically connected with a tightness adjusting piece for adjusting the gear shaft inside the pneumatic head, and the tightness degree of the gear shaft inside the pneumatic actuator is adjusted through the tightness adjusting piece.

Further, the inner wall of the sealing port is fixedly provided with a sealing rubber ring for avoiding gas leakage, and the sealing effect of the sealing head is improved through the sealing rubber ring.

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

1. the air in the pneumatic actuator is discharged rapidly by electrically controlling the expansion of the telescopic rod, so that the pneumatic actuator is reset to a preset position rapidly by rapid air discharge, and the control precision is increased.

2. By improving the air pipe into an air inlet pipeline, the air inlet valve is replaced by a one-way valve to ensure the air inlet speed to be faster, and the valve control speed of the pneumatic actuator is improved.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a fast switching pneumatic actuator according to the present utility model.

Fig. 2 is a schematic diagram of an exhaust structure of a fast switching pneumatic actuator according to the present utility model.

Fig. 3 is a schematic diagram of an air intake structure of a fast switching pneumatic actuator according to the present utility model.

In the figure: 1. a pneumatic head; 2. an electric telescopic rod; 3. an intake valve; 4. a ventilation column; 5. a sealing head; 6. sealing the mouth; 7. sealing rubber rings; 8. an air intake duct; 9. sealing the interface; 10. a connecting pipe; 11. an air pump; 12. a ventilation fixing column; 13. and the tightness adjusting piece.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1 and fig. 2, a fast switch pneumatic actuator comprises a pneumatic head 1, a plurality of sealing ports 6 for fast exhaust are respectively formed on two sides of the top end of the pneumatic head 1, a sealing head 5 for forming a sealed space inside the pneumatic head 1 by matching with the sealing ports 6 is connected in a sliding manner in the sealing ports 6, an air permeable column 4 for forming a communication state with the outside during sliding connection is fixedly connected to the top end of the sealing head 5, an electric telescopic rod 2 for driving the sealing head 5 and the air permeable column 4 to move is fixedly connected to the top end of the air permeable column 4, a sealing rubber ring 7 for avoiding gas leakage is fixedly arranged on the inner wall of the sealing ports 6, the sealing effect of the sealing head is increased by the sealing rubber ring 7, and gas in the pneumatic actuator is fast exhausted by stretching of the electric telescopic rod, so that the fast exhaust is achieved, the pneumatic actuator is fast reset to a preset position, and the control precision is increased.

As shown in fig. 1 and 3, the side walls at two sides of the pneumatic head 1 are fixed and are in through connection with an air inlet valve 3 for quick air inlet, the bottom ends of the air inlet valves 3 are respectively through and are in airtight connection with two air inlet pipelines 8, one end, far away from the air inlet valves 3, of each air inlet pipeline 8 is through inserted into a sealing interface 9, each sealing interface 9 is communicated with an air pump 11 through a connecting pipeline 10, and the air inlet pipelines 8 are improved through an air pipe, so that the air inlet valves 3 are replaced by one-way valves to ensure faster air inlet speed, and the valve control speed of the pneumatic actuator is improved.

As shown in fig. 1, the side wall at the top end of the sealing port 6 is fixedly connected with an air-permeable fixing column 12 for supporting the electric telescopic rod 2, the side walls at the two sides of the pneumatic head 1 are respectively in threaded and airtight connection with an tightness adjusting piece 13 for adjusting the internal gear shaft of the pneumatic head 1, the tightness degree of the internal gear shaft of the pneumatic actuator is adjusted through the tightness adjusting piece 13, and the electric telescopic rod 2 is fixedly supported and the air in the pneumatic actuator is discharged through the air-permeable fixing column 12.

During operation, before using, detect and debug this device at first, whether leak gas and with the pneumatic head 1 adjust to suitable elasticity through elasticity regulating part 13, when carrying out the operation of admitting air, through the outside air pump 11 of control unilateral air pump 11 as required, and transport to sealed interface 9 department through connecting tube 10, enter into in the admission valve 3 through two air inlet pipe 8 on sealed joint top, because of the check valve structure in the admission valve 3, make a certain amount of compressed gas enter into pneumatic actuator after, check valve self-closing, prevent the gas escape, make pneumatic actuator inside form airtight structure, when needs the change valve reset start actuator, through the extension of line control electric telescopic handle 2, promote the inside removal of non-circular ventilative post 4 to pneumatic valve, airtight head 5 enters into inside the pneumatic head 1 under the promotion of electric telescopic handle 2, respectively with airtight mouth, make the inside high-pressure gas of pneumatic head 1 pass through sealing mouth 6 and ventilative post 4 clearance row to outside, make inside and outside air pressure resume, quick exhaust's check valve structure, the inside air release is realized through the fixed post 2 of support electric telescopic handle, the airtight head 2 is reset, and the airtight head 1 is reset and the airtight head is reset, the airtight head 1 is reset and the airtight head is discharged, the airtight head is closed up through the airtight post 1 is reset, and the airtight post is reset to be closed to the airtight post is discharged.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a quick switch pneumatic actuator, includes pneumatic head (1), its characterized in that, a plurality of sealed mouths (6) that are used for quick exhaust are offered respectively to pneumatic head (1) top both sides, sliding connection has airtight head (5) that are used for cooperation sealed mouthful (6) to make the inside airtight space that forms of pneumatic head (1), airtight head (5) top fixedly connected with is used for forming air-permeable column (4) of intercommunication state with the external world when sliding connection, air-permeable column (4) top fixedly connected with is used for driving airtight head (5) and electric telescopic handle (2) that air-permeable column (4) removed.

2. A fast switching pneumatic actuator as claimed in claim 1, wherein: the pneumatic device is characterized in that air inlet valves (3) used for rapidly air inlet are fixedly and communicated with side walls on two sides of the pneumatic head (1), two air inlet pipelines (8) are respectively communicated with the bottom ends of the air inlet valves (3) and are hermetically connected with the bottom ends of the air inlet valves, one ends of the air inlet pipelines (8) away from the air inlet valves (3) are communicated with the inside of a sealing interface (9), and the sealing interface (9) is communicated with an air pump (11) through a connecting pipeline (10).

3. A fast switching pneumatic actuator as claimed in claim 1, wherein: the side wall of the top end of the sealing opening (6) is fixedly connected with a ventilation fixing column (12) for supporting the electric telescopic rod (2).

4. A fast switching pneumatic actuator as claimed in claim 1, wherein: the side walls of the two sides of the pneumatic head (1) are respectively threaded and are hermetically connected with an tightness adjusting piece (13) for adjusting the internal gear shaft of the pneumatic head (1).

5. A fast switching pneumatic actuator as claimed in claim 1, wherein: the inner wall of the sealing opening (6) is fixedly provided with a sealing rubber ring (7) for avoiding gas leakage.