CN216643250U

CN216643250U - Piston rod removes stable general type pneumatic actuator

Info

Publication number: CN216643250U
Application number: CN202123433166.7U
Authority: CN
Inventors: 张武
Original assignee: Zhejiang Huaershi Automatic Control Instrument Valve Co ltd
Current assignee: Zhejiang Huaershi Automatic Control Instrument Valve Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-05-31
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to a universal pneumatic actuator with a piston rod moving stably, which comprises a cylinder body, a spring seat, a linkage piece, a rotating shaft, a piston rod and a piston, wherein the cylinder body is sequentially divided into a spring chamber, a rotating chamber and a piston chamber, the piston is movably arranged in the piston chamber, the spring holder sets up in the spring chamber, be provided with reset spring between spring holder and the spring chamber, the piston rod sets up in the cylinder body, the piston rod has the spring end that sets up in the spring chamber, the piston rod has the piston end that sets up in the piston chamber, the piston rod has the slip section that is located the rotation chamber, the link sets up and constitutes the rotation of axis of rotation between axis of rotation and the slip section, the spring chamber is provided with fixed sleeve, the spring end is provided with the translation pole with piston rod synchronous movement, the translation pole has sealed end and translation pole that are located fixed sleeve and moves along fixed sleeve, the other end of the relative translation pole of fixed sleeve is provided with the input port. The utility model provides a universal pneumatic actuator with a stable piston rod movement.

Description

Piston rod removes stable general type pneumatic actuator

Technical Field

The utility model relates to a pneumatic actuator, in particular to a universal pneumatic actuator with a stably moving piston rod.

Background

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

At present, the piston rod of the pneumatic actuator has the condition of unstable movement, so that the piston rod is subjected to larger torsional force, the service life of the piston rod is shortened, and the use effect of the whole pneumatic actuator is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a universal pneumatic actuator with a stable piston rod movement.

In order to realize the purpose, the utility model provides the following technical scheme: the piston rod is arranged in the cylinder body, the piston rod is provided with a spring end arranged in the spring chamber and moves synchronously with the spring seat, the piston rod is provided with a sliding section positioned in the rotating chamber, the linkage piece is arranged between the rotating shaft and the sliding section and forms rotation of the rotating shaft, the spring chamber is provided with a fixed sleeve positioned in the extending direction of the moving track of the piston rod, the spring end is provided with a translation rod which moves synchronously with the piston rod, the translation rod is provided with a sealing end positioned in the fixed sleeve and moves along the fixed sleeve, the other end of the fixed sleeve relative to the translation rod is provided with an input port.

Through adopting above-mentioned technical scheme, when the valve needs to be opened, the air current gets into fixed sleeve from the input port, the atmospheric pressure that is in outside the sealed end this moment rises, thereby promote the removal of translation pole, compress reset spring, and then drive the removal of piston rod, make the axis of rotation take place to rotate, thereby open the valve, the piston rod passes the both sides of rolling chamber, the rolling chamber can play the supporting role to the piston rod this moment, and the spring end of piston rod slides in fixed sleeve through the translation pole, it is level and smooth to remove, the piston end is fixed to be moved steadily on the piston equally, thereby make the removal of whole piston rod steady.

The utility model is further configured to: the rotation axis be located one side of slip section, linkage one end set up in the rotation axis and with the synchronous rotation of rotation axis, the other end is provided with waist type groove, be provided with on the slip section along the actuation arch that waist type groove slided, the actuation arch of removal constitutes the rotation of linkage.

Through adopting above-mentioned technical scheme, when the carriage release lever removed, the actuation arch that is in the slip section can remove thereupon to remove in waist type groove, drive the linkage piece simultaneously and use the axis of rotation to rotate as the centre of a circle, the axis of rotation took place to rotate this moment, thereby satisfied opening and closing the valve.

The utility model is further configured to: the rotating chamber is sequentially divided into a first transition section, a rotating section and a second transition section, the first transition section is connected with the spring chamber, the second transition section is connected with the piston chamber, and the rotating section is in an arc shape matched with the rotating track of the linkage piece.

Through adopting above-mentioned technical scheme, because the linkage can take place to rotate in the rolling chamber, so the circular arc setting of rotation section satisfies the rotation demand of linkage, can not bump to influence the rotation of axis of rotation.

The utility model is further configured to: the adjusting device comprises a first adjusting column and a second adjusting column, wherein the first adjusting column and the second adjusting column are arranged in a rotating section in a threaded manner, and a rotating space for rotating a linkage part is arranged between the first adjusting column and the second adjusting column.

Through adopting above-mentioned technical scheme, the linkage will rotate in rotating the space, adjust the indoor length that is in through rotatory first regulation post or second regulation post this moment to influence the size in rotating the space, play the adjustment to linkage pivoted range, thereby changed the turned angle stroke of axis of rotation, the suitability is stronger.

The utility model is further configured to: and a sealing ring for sealing is arranged between the fixed sleeve and the translation rod.

Through adopting above-mentioned technical scheme, the setting up of sealing washer makes the air current that gets into from the input port can not leak, and is more stable to the drive of translation pole.

Drawings

FIG. 1 is a cross-sectional view of the present invention in its entirety;

FIG. 2 is a partial enlarged view A of the present invention;

FIG. 3 is a partial enlarged view B of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-3, the present invention discloses a general pneumatic actuator with stable piston rod movement, comprising a cylinder body 1, a rotating shaft 2, a spring seat 5, a linkage member 6, a piston rod 3 and a piston 4, wherein the cylinder body 1 is divided into a spring chamber 11, a rotating chamber 12 and a piston chamber 13 in sequence, the piston 4 is movably disposed in the piston chamber 13, the spring seat 5 is disposed in the spring chamber 11, a return spring 51 is disposed between the spring seat 5 and the spring chamber 11, the return spring 51 extends and contracts in a direction close to and away from the rotating chamber 12, the piston 4 rod 3 is disposed in the cylinder body 1, the piston 4 rod 3 has a spring end 31 disposed in the spring chamber 11, the spring end 31 and the spring seat 5 move synchronously, the piston 4 rod 3 has a piston end 32 disposed in the piston chamber 13, the piston end 32 and the piston 4 move synchronously, the piston 4 rod 3 has a sliding section 33 disposed in the rotating chamber 12, the linkage member 6 is disposed between the rotating shaft 2 and the sliding section 33 and constitutes rotation of the rotating shaft 2, the spring chamber 11 is provided with a fixed sleeve 7, the fixed sleeve 7 is located in the extending direction of the moving track of the piston rod 3, the spring end 31 is provided with a translation rod 8 which moves synchronously with the piston rod 3, the translation rod 8 is provided with a sealing end 81 located in the fixed sleeve 7, the translation rod 8 moves along the fixed sleeve 7, the other end of the fixed sleeve 7 opposite to the translation rod 8 is provided with an input port 71, when the valve needs to be opened, air flow enters the fixed sleeve 7 from the input port 71, at the moment, air pressure outside the sealing end 81 rises, so that the translation rod 8 is pushed to move, a return spring 51 is compressed, the piston rod 3 is driven to move, the rotating shaft 2 is rotated, so that the valve is opened, the piston rod 3 passes through two sides of the rotating chamber 12, at the moment, the rotating chamber 12 can support the piston rod 3, and the spring end 31 of the piston rod 3 slides in the fixed sleeve 7 through the translation rod 8, the movement is smooth and the piston end 32 is fixed to the piston 4 and likewise moves smoothly, so that the movement of the entire piston rod 3 is smooth.

The axis of rotation 2 is located one side of slip section 33, linkage 6 one end sets up in axis of rotation 2 and rotates with axis of rotation 2 is synchronous, the other end is provided with waist type groove 61, be provided with the actuation arch 34 that slides along waist type groove 61 on the slip section 33, the actuation arch 34 that removes constitutes linkage 6's rotation, when the carriage release lever removes, the actuation arch 34 that is in slip section 33 can remove thereupon, and remove in waist type groove 61, drive linkage 6 simultaneously and use axis of rotation 2 to rotate as the centre of a circle, axis of rotation 2 took place to rotate this moment, thereby satisfied opening and closing the valve.

The rotating chamber 12 is sequentially divided into a first transition section 121, a rotating section 122 and a second transition section 123, the first transition section 121 is connected with the spring chamber 11, the second transition section 123 is connected with the piston chamber 13, the rotating section 122 is in a circular arc shape matched with the rotating track of the linkage member 6, and the linkage member 6 can rotate in the rotating chamber 12, so that the circular arc of the rotating section 122 is arranged to meet the rotating requirement of the linkage member 6, collision cannot occur, and the rotation of the rotating shaft 2 is influenced.

Adjust post 92 including first regulation post 91 and second, first regulation post 91 and second regulation post 92 screw thread set up in rotating section 122, first regulation post 91 and second are adjusted and have between the post 92 and supply linkage 6 pivoted rotation space 9, linkage 6 will rotate in rotation space 9, adjust the adjustable length that is in rotation room 12 through rotatory first regulation post 91 or second this moment, thereby influence the size of rotation space 9, play the adjustment to linkage 6 rotation range, thereby the turned angle stroke of axis of rotation 2 has been changed, the suitability is stronger.

A sealing ring 78 for sealing is arranged between the fixed sleeve 7 and the translation rod 8, and the sealing ring 78 is arranged so that the air flow entering from the input port 71 does not leak and the driving of the translation rod 8 is more stable.

Claims

1. The utility model provides a piston rod removes stable general type pneumatic actuator, includes cylinder body, axis of rotation, piston rod and piston, its characterized in that: the piston is movably arranged in the piston chamber, the spring seat is arranged in the spring chamber, a reset spring is arranged between the spring seat and the spring chamber and stretches along the direction close to and away from the rotating chamber, the piston rod is arranged in the cylinder body, the piston rod is provided with a spring end arranged in the spring chamber, the spring end moves synchronously with the spring seat, the piston rod is provided with a piston end arranged in the piston chamber, the piston end moves synchronously with the piston, the piston rod is provided with a sliding section positioned in the rotating chamber, the linkage piece is arranged between the rotating shaft and the sliding section and forms rotation of the rotating shaft, the spring chamber is provided with a fixed sleeve, the fixed sleeve is positioned in the extending direction of the moving track of the piston rod, the spring end is provided with a translation rod which moves synchronously with the piston rod, the translation rod is provided with a sealing end positioned in the fixed sleeve, and moves along the fixed sleeve, the other end of the fixed sleeve relative to the translation rod is provided with an input port.

2. The piston rod movement stabilized universal pneumatic actuator of claim 1 wherein: the rotation axis be located one side of slip section, linkage one end set up in the rotation axis and with the synchronous rotation of rotation axis, the other end is provided with waist type groove, be provided with on the slip section along the actuation arch that waist type groove slided, the actuation arch of removal constitutes the rotation of linkage.

3. The piston rod movement stabilized universal pneumatic actuator of claim 2 wherein: the rotating chamber is sequentially divided into a first transition section, a rotating section and a second transition section, the first transition section is connected with the spring chamber, the second transition section is connected with the piston chamber, and the rotating section is in an arc shape matched with the rotating track of the linkage piece.

4. A piston rod movement stabilized universal pneumatic actuator as claimed in claim 3 wherein: the adjusting device comprises a first adjusting column and a second adjusting column, wherein the first adjusting column and the second adjusting column are arranged in a rotating section in a threaded manner, and a rotating space for rotating a linkage part is arranged between the first adjusting column and the second adjusting column.

5. The piston rod movement stabilized universal pneumatic actuator of claim 1 wherein: and a sealing ring for sealing is arranged between the fixed sleeve and the translation rod.