CN214946725U

CN214946725U - Electric switch valve actuator

Info

Publication number: CN214946725U
Application number: CN202121039741.2U
Authority: CN
Inventors: 刘涛
Original assignee: Beijing Hanruide Network Technology Co ltd
Current assignee: Beijing Hanruide Network Technology Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-11-30
Anticipated expiration: 2031-05-13

Abstract

An electric switch valve actuator comprises an electric head, a controller, a first limiter, a second limiter, a third limiter, a fourth limiter, a hand wheel, a push rod assembly and a bracket; the electric head is arranged on the bracket; the hand wheel is rotationally arranged on the electric head, and the output end of the electric head is connected with the push rod assembly; the electric head is provided with a shell; the controller, the first limiter, the second limiter, the third limiter and the fourth limiter are all arranged in the shell; the first limiter, the second limiter, the third limiter and the fourth limiter are all in communication connection with the controller; the controller is connected with the electric head in a control way. The utility model discloses the controller can the extreme position of accurate positioning valve switch according to the first stopper signal of receipt, second stopper signal, third stopper signal and fourth stopper signal, opens the stop control to the electric head to this protects executor and valve.

Description

Electric switch valve actuator

Technical Field

The utility model relates to an electric switch valve technical field especially relates to an electric switch valve executor.

Background

Various types of electric switch valves are often needed in the fields of heating and ventilation systems, sewage treatment and the like, and the valves need to be driven by an electric actuator, so that the valves can be accurately and quickly switched.

However, when the existing electric valve actuator is in working process and the switch limiter is displaced or fails, the motor cannot be timely stopped when exceeding the limit torque, and the motor or the gear set is damaged.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem that exists among the background art, the utility model provides an electric switch valve executor, the extreme position that can accurate positioning valve switch is according to first stopper signal, second stopper signal, third stopper signal and the fourth stopper signal of receipt to the controller opens and stops control to electric head to this protects executor and valve.

(II) technical scheme

The utility model provides an electric switch valve actuator, which comprises an electric head, a controller, a first limiter, a second limiter, a third limiter, a fourth limiter, a hand wheel, a push rod assembly and a bracket;

the electric head is arranged on the bracket; the hand wheel is rotationally arranged on the electric head, and the output end of the electric head is connected with the push rod assembly; the electric head is provided with a shell; the controller, the first limiter, the second limiter, the third limiter and the fourth limiter are all arranged in the shell; the first limiter, the second limiter, the third limiter and the fourth limiter are all in communication connection with the controller; the controller is connected with the electric head in a control way; the push rod assembly comprises a nut, a stud bolt, packing, a first bolt, a valve shaft, a valve body connector and a packing gland; the valve body connector is arranged on the bracket and is positioned at the lower end of the bracket; the valve body connector is connected with the bracket through a first bolt; the valve shaft is arranged on the valve body connector in a sliding mode, and one end of the valve shaft is located inside the support; the output end of the electric head is connected with the valve shaft; the valve body connector is provided with a filling groove, the filler is arranged in the filling groove, and the filler is arranged on the outer peripheral side of the valve shaft; the packing gland is arranged on the valve body connector, and one end of the packing gland is positioned in the packing groove and is abutted against the packing; one end of the stud is in threaded connection with the valve body connector, and the other end of the stud is in sliding connection with the packing gland and is in threaded connection with the nut; the nut is abutted with the packing gland.

Preferably, the valve body connector is provided with a second bolt and a gasket; the gasket is of a metal winding type and is positioned at the bottom of the valve body connector.

Preferably, the first stopper is a 90-degree full-open stopper; the third limiter is a 87-degree full-open limiter; the second stopper is a 0 degree full-closed stopper, and the fourth stopper is a 3 degree full-closed stopper.

Preferably, both ends of the valve shaft are provided with the connecting parts.

Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has: when in use, the utility model is connected with valves of different models through the valve body connector; the hand wheel is used for temporary operation, the valve is closed by rotating the hand wheel clockwise, the valve is opened by rotating the hand wheel anticlockwise, and if the hand wheel is only used for operation, the power supply of the controller is required to be closed; the first limiting stopper, the second limiting stopper, the third limiting stopper and the fourth limiting stopper rotate along with the valve shaft, the angle can be adjusted, the valve shaft is opened in the clockwise direction and closed in the counterclockwise direction. The rotation angle range of the valve shaft is 0-90 degrees, 0 degree is full-closed, and 90 degrees is full-open; the controller can accurately position the limit position of the valve switch according to the received signals of the first limiter, the second limiter, the third limiter and the fourth limiter, start and stop control is carried out on the electric head, so that the actuator and the valve are protected, safe and reliable operation of the electric switch valve is guaranteed, and the failure probability of the electric actuator is greatly reduced.

Drawings

Fig. 1 is a schematic structural diagram of an electric switch valve actuator provided by the present invention.

Reference numerals: 1. a power head; 2. a controller; 3. a first stopper; 4. a second stopper; 5. a third stopper; 6. a fourth stopper; 7. a hand wheel; 8. a nut; 9. a stud bolt; 10. a filler; 11. a first bolt; 12. a valve shaft; 13. a second bolt; 14. a valve body connector; 15. a gasket; 16. a push rod assembly; 17. a support; 18. and (4) a packing gland.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1, the utility model provides an electric switch valve actuator, which comprises an electric head 1, a controller 2, a first limiter 3, a second limiter 4, a third limiter 5, a fourth limiter 6, a hand wheel 7, a push rod assembly 16 and a bracket 17;

the electric head 1 is arranged on the bracket 17; the hand wheel 7 is rotationally arranged on the electric head 1, and the output end of the electric head 1 is connected with the push rod assembly 16; the electric head 1 is provided with a shell; the controller 2, the first limiter 3, the second limiter 4, the third limiter 5 and the fourth limiter 6 are all arranged in the shell; the first limiter 3, the second limiter 4, the third limiter 5 and the fourth limiter 6 are all in communication connection with the controller 2; the controller 2 is in control connection with the electric head 1; the pushrod assembly 16 includes a nut 8, a stud 9, packing 10, a first bolt 11, a valve shaft 12, a valve body connector 14, and a packing gland 18; the valve body connector 14 is arranged on the bracket 17 and is positioned at the lower end of the bracket 17; the valve body connector 14 is connected with the bracket 17 through a first bolt 11; the valve shaft 12 is arranged on the valve body connector 14 in a sliding mode, and one end of the valve shaft 12 is located inside the bracket 17; the output end of the electric head 1 is connected with the valve shaft 12; a filling groove is formed in the valve body connector 14, the packing 10 is arranged in the filling groove, and the packing 10 is arranged on the outer periphery side of the valve shaft 12; the packing gland 18 is arranged on the valve body connector 14, and one end of the packing gland 18 is positioned in the packing groove and is abutted against the packing 10; one end of the stud bolt 9 is in threaded connection with the valve body connector 14, and the other end of the stud bolt 9 is in sliding connection with the packing gland 18 and is in threaded connection with the nut 8; the nut 8 abuts the packing gland 18.

In an alternative embodiment, the valve body connector 14 is provided with a second bolt 13 and a washer 15; the gasket 15 is a metal wrap and the gasket 15 is located at the bottom of the valve body connector 14.

It should be noted that the washer 15 is used to prevent the second bolt 13 from loosening when the mating valve stem is connected.

In an alternative embodiment, the first stopper 3 is a 90 ° wide open stopper; the third limiter 5 is a 87-degree full-open limiter; the second stopper 4 is a 0-degree full-closed stopper, and the fourth stopper 6 is a 3-degree full-closed stopper.

It should be noted that the first limiter 3 and the third limiter 5 are used for transmitting an on-position signal to the controller 2, so that the controller 2 sends a command for stopping the operation of the power head 1, and the power head 1 is prevented from being overloaded; the second limiting device 4 and the fourth limiting device 6 are used for transmitting a closing in-place signal to the controller 2, so that the controller 2 sends a command for stopping the power head 1 to prevent the power head 1 from being overloaded.

In an alternative embodiment, both ends of the valve shaft 12 are provided with a coupling.

It should be noted that the connecting part at the upper end can be conveniently connected with the output end of the power head 1; the connecting part of lower extreme can be connected with supporting valve rod.

When the utility model is used, the valve body connector 14 is connected with valves of different models; the hand wheel 7 is used for temporary operation, the valve is closed by rotating the hand wheel 7 clockwise, the valve is opened by rotating the hand wheel 7 anticlockwise, and if the operation is performed by only using the hand wheel 7, the power supply of the controller 2 is turned off; the first limiter 3, the second limiter 4, the third limiter 5 and the fourth limiter 6 rotate along with the valve shaft 12, the angle can be adjusted, the valve shaft 12 is clockwise for closing the valve, and counterclockwise for opening the valve. The rotation angle range of the valve shaft 12 is 0-90 degrees, 0 degree is full-closed, and 90 degrees is full-open; the controller 2 can accurately position the limit position of the valve switch according to the received signals of the first limiting stopper 3, the second limiting stopper 4, the third limiting stopper 5 and the fourth limiting stopper 6, and controls the start and stop of the electric head 1, so that the actuator and the valve are protected, the safe and reliable operation of the electric switch valve is ensured, and the failure probability of the electric actuator is greatly reduced.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. An electric switch valve actuator is characterized by comprising an electric head (1), a controller (2), a first limiter (3), a second limiter (4), a third limiter (5), a fourth limiter (6), a hand wheel (7), a push rod assembly (16) and a support (17);

the electric head (1) is arranged on the bracket (17); the hand wheel (7) is rotationally arranged on the electric head (1), and the output end of the electric head (1) is connected with the push rod assembly (16); the electric head (1) is provided with a shell; the controller (2), the first limiter (3), the second limiter (4), the third limiter (5) and the fourth limiter (6) are all arranged in the shell; the first limiter (3), the second limiter (4), the third limiter (5) and the fourth limiter (6) are all in communication connection with the controller (2); the controller (2) is in control connection with the electric head (1); the push rod assembly (16) comprises a nut (8), a stud bolt (9), packing (10), a first bolt (11), a valve shaft (12), a valve body connector (14) and a packing gland (18); the valve body connector (14) is arranged on the bracket (17) and is positioned at the lower end of the bracket (17); the valve body connector (14) is connected with the bracket (17) through a first bolt (11); the valve shaft (12) is arranged on the valve body connector (14) in a sliding mode, and one end of the valve shaft (12) is located inside the support (17); the output end of the electric head (1) is connected with the valve shaft (12); a filling groove is formed in the valve body connector (14), the filler (10) is arranged in the filling groove, and the filler (10) is arranged on the outer peripheral side of the valve shaft (12); the packing gland (18) is arranged on the valve body connector (14), and one end of the packing gland (18) is positioned in the filling groove and is abutted against the packing (10); one end of the stud bolt (9) is in threaded connection with the valve body connector (14), and the other end of the stud bolt (9) is in sliding connection with the packing gland (18) and is in threaded connection with the nut (8); the nut (8) abuts against the packing gland (18).

2. An electric switch valve actuator according to claim 1, characterized in that the valve body connector (14) is provided with a second bolt (13) and a washer (15); the gasket (15) is of a metal winding type, and the gasket (15) is located at the bottom of the valve body connector (14).

3. An electric switch valve actuator according to claim 2, characterized in that the first limit stop (3) is a 90 ° full open limit stop; the third limiter (5) is a 87-degree full-open limiter; the second limiter (4) is a 0-degree full-closed limiter, and the fourth limiter (6) is a 3-degree full-closed limiter.

4. An electric switch valve actuator according to claim 1, characterized in that both ends of the valve shaft (12) are provided with a coupling.