CN217029794U

CN217029794U - Pneumatic actuator with adjustable flow

Info

Publication number: CN217029794U
Application number: CN202220059535.6U
Authority: CN
Inventors: 朱立喜
Original assignee: Yangzhou Yulin Valve Control Co ltd
Current assignee: Yangzhou Yulin Valve Control Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-07-22
Anticipated expiration: 2032-01-11

Abstract

The utility model discloses a flow-adjustable pneumatic actuator which comprises an actuator body, wherein a buffer seat is arranged on the lower surface of the actuator body, a fixed sleeve and an air inlet pipe are arranged on the upper surface of the actuator body, the fixed sleeve is positioned on one side of the air inlet pipe, an adjusting mechanism is arranged on the fixed sleeve and is formed by combining an adjusting knob and a screw rod, the adjusting knob is arranged at one end of the screw rod, a spring cylinder is arranged on one side of the bottom of the inner wall of the actuator body, an elastic spring is arranged in the spring cylinder, a pressing plate is arranged at one end of the elastic spring, a supporting plate is arranged at the other end of the connecting rod, an air-through sleeve is arranged on one side of the upper surface of the supporting plate, and the air-through sleeve is positioned in the air inlet pipe. According to the utility model, through the arrangement of a series of structures, the flow of air entering the actuator can be conveniently adjusted, meanwhile, the protection of shock absorption and buffering of the actuator can be improved, and the practicability is strong.

Description

Pneumatic actuator with adjustable flow

Technical Field

The utility model relates to the technical field of pneumatic actuators, in particular to a pneumatic actuator with adjustable flow.

Background

The pneumatic actuator is an actuating device for opening and closing or adjusting a valve by using air pressure, is also called a pneumatic actuating mechanism or a pneumatic device, but is generally called a pneumatic head in a popular way, the actuating mechanism and the adjusting mechanism of the pneumatic actuator are a unified whole, the actuating mechanism of the pneumatic actuator comprises a film type, a piston type, a shifting fork type and a gear and rack type, the piston type stroke is long, the pneumatic actuator is suitable for occasions requiring larger thrust, the film type stroke is smaller and only can directly drive a valve rod, the pneumatic actuator is an actuating device for opening and closing or adjusting the valve by using the air pressure, is also called a pneumatic actuating mechanism or a pneumatic device, and is an important component element in the electrified equipment.

The existing pneumatic actuator device has the defects that: the existing pneumatic actuator has no corresponding adjusting device for the inlet air flow, and the pneumatic actuator can not reach the optimal working state, so certain improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flow-adjustable pneumatic actuator to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a flow-adjustable pneumatic actuator comprises an actuator body, wherein a buffer seat is installed on the lower surface of the actuator body, a fixed sleeve and an air inlet pipe are installed on the upper surface of the actuator body, the fixed sleeve is located on one side of the air inlet pipe, an adjusting mechanism is installed on the fixed sleeve and is formed by combining an adjusting knob and a lead screw, the adjusting knob is installed at one end of the lead screw, a spring barrel is installed on one side of the bottom of the inner wall of the actuator body, an elastic spring is installed inside the spring barrel, a pressing plate is installed at one end of the elastic spring, a connecting rod is installed on the other side of the outer wall of the pressing plate, a supporting plate is installed at the other end of the connecting rod, an air-through sleeve is installed on one side of the upper surface of the supporting plate and is located inside the air inlet pipe, the buffer seat is formed by combining a connecting plate A, a connecting plate B, a sponge cushion and a rubber soft column, a connecting plate A is installed at one end of the rubber soft column, and a connecting plate B is arranged at the other end of the rubber soft column, and a spongy cushion is arranged between the connecting plate A and the connecting plate B.

Preferably, the ventilation sleeve is connected with the air inlet pipe through a gap.

Preferably, the screw rod is meshed and connected with the internal thread on the inner wall of the fixing sleeve through external threads on the outer wall.

Preferably, a sealing cover is installed at one end of the air inlet pipe.

Preferably, the outer wall of the ventilation sleeve is provided with a ventilation groove.

Compared with the prior art, the utility model has the beneficial effects that: the utility model is characterized in that an adjusting knob, a screw rod, a fixed sleeve, an air inlet pipe, a support plate, a tension spring, a pressure plate, a connecting rod, an air vent sleeve and a buffer seat are arranged in a matching way, the screw rod is connected with the adjusting knob, the screw rod is meshed with an internal thread on the inner wall of the fixed sleeve through an external thread on the outer wall, the screw rod is connected with the support plate, the support plate is connected with the pressure plate, the pressure plate is connected with the tension spring, so that when the adjusting knob rotates, the screw rod pushes the support plate to descend and ascend, the tension spring pushes the support plate to cling to the screw rod, the support plate is connected with the connecting rod, the connecting rod is connected with the air vent sleeve, so that when the support plate ascends and descends, the position of the air vent sleeve in the air inlet pipe is conveniently adjusted, air entering the air inlet pipe from the outside enters the interior of an actuator body through an air vent groove on the air vent sleeve, and the flow of the air entering the interior of the actuator body is conveniently controlled through the exposed area of the air vent groove, the buffer seat is convenient to improve the shock absorption and buffer protection of the actuator body. According to the utility model, through the arrangement of a series of structures, the flow of air entering the actuator can be conveniently adjusted, meanwhile, the protection of shock absorption and buffering can be improved for the actuator, and the practicability is strong.

Drawings

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

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of the actuator body of the present invention;

FIG. 4 is a schematic view of the structure of the ventilation cover of the present invention;

FIG. 5 is a cross-sectional view of the cushion seat of the present invention.

In the figure: 1. an adjustment mechanism; 2. a screw rod; 3. fixing a sleeve; 4. an actuator body; 5. a buffer seat; 6. A sealing cover; 7. adjusting a knob; 8. a spring case; 9. pressing a plate; 10. a tension spring; 11. a support plate; 12. a connecting rod; 13. a ventilation sleeve; 14. an air inlet pipe; 15. a vent channel; 16. a connecting plate A; 17. a connecting plate B; 18. a sponge cushion; 19. a rubber soft column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Referring to fig. 1-5, an embodiment of the present invention is shown: a flow-adjustable pneumatic actuator comprises an actuator body 4, a buffer seat 5 is installed on the lower surface of the actuator body 4, a fixing sleeve 3 and an air inlet pipe 14 are installed on the upper surface of the actuator body 4, the fixing sleeve 3 is located on one side of the air inlet pipe 14, an adjusting mechanism 1 is installed on the fixing sleeve 3, the adjusting mechanism 1 is formed by combining an adjusting knob 7 and a screw rod 2, the adjusting knob 7 is installed at one end of the screw rod 2, the screw rod 2 is meshed with an internal thread on the inner wall of the fixing sleeve 3 through an external thread on the outer wall, a spring cylinder 8 is installed on one side of the bottom of the inner wall of the actuator body 4, a tension spring 10 is installed inside the spring cylinder 8, a pressing plate 9 is installed at one end of the tension spring 10, a connecting rod 12 is installed on one side of the outer wall of the pressing plate 9, a supporting plate 11 is installed at the other end of the connecting rod 12, an air vent sleeve 13 is installed on one side of the upper surface of the supporting plate 11, and the vent sleeve 13 is located inside the air inlet pipe 14, the ventilation sleeve 13 is connected with the air inlet pipe 14 through a gap, the outer wall of the ventilation sleeve 13 is provided with a ventilation groove 15, the screw rod 2 is connected with the adjusting knob 7, the screw rod 2 is meshed with the internal thread on the inner wall of the fixed sleeve 3 through the external thread on the outer wall, the screw rod 2 is connected with the supporting plate 11, the supporting plate 11 is connected with the pressing plate 9, the pressing plate 9 is connected with the elastic spring 10, so that when the adjusting knob 7 rotates, the screw rod 2 pushes the supporting plate 11 to descend and ascend, the elastic spring 10 pushes the supporting plate 11 to cling to the screw rod 2, the supporting plate 11 is connected with the connecting rod 12, the connecting rod 12 is connected with the ventilation sleeve 13, therefore, when the supporting plate 11 ascends and descends, the position of the ventilation sleeve 13 inside the air inlet pipe 14 is convenient to adjust, air entering the air inlet pipe 14 from the outside enters the inside of the actuator body 4 through the ventilation groove 15 on the ventilation sleeve 13, and the flow of the air entering the inside of the actuator body 4 is convenient to control through the exposed area of the ventilation groove 15, buffer seat 5 is formed by connecting plate A16, connecting plate B17, foam-rubber cushion 18 and the combination of the soft post of rubber 19, connecting plate A16 is installed to the soft post of rubber 19 one end, connecting plate B17 is installed to the soft post of rubber 19 other end, install foam-rubber cushion 18 between connecting plate A16 and the connecting plate B17 is adjacent, buffer seat 5 conveniently improves the protection of shock attenuation and buffering to executor body 4, sealed lid 6 is installed to intake pipe 14 one end.

The working principle is as follows: the screw rod 2 is connected with the adjusting knob 7, the screw rod 2 is meshed with the internal thread on the inner wall of the fixed sleeve 3 through the external thread on the outer wall, the screw rod 2 is connected with the supporting plate 11, the supporting plate 11 is connected with the pressing plate 9, the pressing plate 9 is connected with the elastic spring 10, so that when the adjusting knob 7 rotates and the screw rod 2 pushes the supporting plate 11 to descend and ascend, the elastic spring 10 pushes the supporting plate 11 to cling to the screw rod 2, the supporting plate 11 is connected with the connecting rod 12, the connecting rod 12 is connected with the ventilating sleeve 13, so that when the support plate 11 ascends and descends, the position of the air inlet pipe 14 inside the air inlet pipe 13 is convenient to adjust, air entering the air inlet pipe 14 from the outside enters the actuator body 4 through the air groove 15 on the air inlet pipe 13, the flow of air entering the interior of the actuator body 4 is conveniently controlled by the exposed area of the vent groove 15, and the buffer seat 5 is convenient for improving the shock absorption and buffering protection of the actuator body 4.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A pneumatic actuator with adjustable flow, comprising an actuator body (4), characterized in that: surface mounting has a buffer base (5) under executor body (4), surface mounting has fixed cover (3) and intake pipe (14) on executor body (4), and fixed cover (3) are located intake pipe (14) one side, install adjustment mechanism (1) on fixed cover (3), adjustment mechanism (1) is formed by adjust knob (7) and lead screw (2) combination, adjust knob (7) are installed to lead screw (2) one end, spring barrel (8) are installed to executor body (4) inner wall bottom one side, spring barrel (8) internally mounted has elasticity spring (10), clamp plate (9) are installed to elasticity spring (10) one end, connecting rod (12) are installed to clamp plate (9) outer wall one side, backup pad (11) are installed to the connecting rod (12) other end, ventilation cover (13) are installed to backup pad (11) upper surface one side, and the ventilation sleeve (13) is positioned in the air inlet pipe (14), the buffer seat (5) is formed by combining a connecting plate A (16), a connecting plate B (17), a spongy cushion (18) and a rubber soft column (19), the connecting plate A (16) is installed at one end of the rubber soft column (19), the connecting plate B (17) is installed at the other end of the rubber soft column (19), and the spongy cushion (18) is installed between the connecting plate A (16) and the connecting plate B (17) in an adjacent mode.

2. A variable flow pneumatic actuator as claimed in claim 1, wherein: the ventilation sleeve (13) is connected with the air inlet pipe (14) through a gap.

3. A variable flow pneumatic actuator as claimed in claim 1, wherein: the screw rod (2) is meshed and connected with the internal thread on the inner wall of the fixed sleeve (3) through the external thread on the outer wall.

4. A variable flow pneumatic actuator as claimed in claim 1, wherein: and a sealing cover (6) is arranged at one end of the air inlet pipe (14).

5. A variable flow pneumatic actuator as claimed in claim 1, wherein: and the outer wall of the ventilation sleeve (13) is provided with a ventilation groove (15).