CN217381835U

CN217381835U - Electric valve

Info

Publication number: CN217381835U
Application number: CN202220269333.4U
Authority: CN
Inventors: 王志全; 金浩春
Original assignee: Beijing Kawaden Co ltd
Current assignee: Beijing Kawaden Co ltd
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-09-06
Anticipated expiration: 2032-02-10

Abstract

The present invention relates to an electric valve; when the valve is in a fully closed position, the handle of the coupler is operated to separate the output shaft of the electric actuating mechanism from the valve rod, the handle can only be rotated to rotate the valve rod instead of the output shaft of the electric actuating mechanism, the operation is simple and labor-saving, and the output shaft of the electric actuating mechanism can be automatically connected with the output shaft of the electric actuating mechanism and the valve rod through rotation.

Description

Electric valve

Technical Field

The utility model relates to an electric valve technical field. In particular to the technical field of couplings of electric valves.

Background

The electric valve is arranged on the pipeline, and the flow and the pressure of fluid in the pipeline are controlled by opening and closing the valve. The electric valve needs to be manually operated to switch the valve at the initial installation stage or in the power failure.

A manual operating device is generally provided on the electric actuator. Some electric actuators without manual operating means rotate the coupling directly in order to open the valve.

However, the existing manual operation device of the electric valve has the following disadvantages; disadvantage 1: the electric actuating mechanism is provided with a manual operating device, so that the structure is complex and the manufacturing cost is high; and (2) disadvantage: when the coupling is directly rotated to open and close the valve, the output shaft of the electric actuating mechanism also rotates together, and the manual operation needs double torque.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the above problem and provide an electric valve with simple manual operation.

In order to achieve the above purpose, the utility model comprises: the device comprises a coupler 1, an electric actuator 2, a valve 3 and a support 4.

The utility model also comprises; the coupling comprises a coupling body 11, a shaft sleeve 12, a pin 13, a cover 14, a spring 15, a clamping ring 16, a handle 17 and a support sleeve 21; the output shaft 18 of the electric actuator mechanism 2 is inserted into the shaft sleeve 12 and coupled together by a key 20, the valve stem 19 of the valve 3 is inserted into the shaft sleeve body 11 and rotated together, the shaft sleeve 12 is coupled to the shaft sleeve body 11 and rotated together by the pin 13, the pin 13 is pulled out in the centrifugal direction of the shaft sleeve 12, the shaft sleeve 12 and the shaft sleeve body 11 are separated, the handle 17 is rotated about the center of the shaft sleeve 12, the output shaft 18 is not rotated, and the shaft sleeve body 11 and the valve stem 19 are rotated together, so that the valve can be opened or closed by manual operation.

The utility model also comprises; when the pin 13 is pulled out to make the shaft sleeve 12 and the coupling body 11 in a disengaged state, when the output shaft 18 of the electric actuator 2 rotates until the pin 13 is aligned with the radial hole of the shaft sleeve 12, one end of the pin 13 enters the hole of the shaft sleeve 12 by the restoring force of the spring 15, and the shaft sleeve 12 and the coupling body 11 are re-coupled together, so that the coupling of the output shaft 18 and the valve rod 19 can be automatically completed.

According to the utility model discloses, following effect can be reached.

That is, only the valve rod is rotated without rotating the output shaft of the electric actuator when the valve is opened or closed by the manual operation. After the valve is opened through manual operation, the output shaft of the electric actuator and the valve rod can be automatically coupled when the electric actuator normally acts.

Drawings

FIG. 1 is an electric valve

FIG. 2 is a schematic view of the structure of the coupling

FIG. 3 shows a coupling body

FIG. 4 is a shaft sleeve

FIG. 5 shows a pin

FIG. 6 is a lid

FIG. 7 shows a spring

FIG. 8 shows a snap ring

FIG. 9 is a handle

FIG. 10 is a support sleeve

FIG. 11 is a schematic view of the manual operation of the coupling

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is an electric valve, fig. 2 is a schematic view of a coupling structure, fig. 3 is a coupling body, fig. 4 is a shaft sleeve, fig. 5 is a pin, fig. 6 is a cover, fig. 7 is a spring, fig. 8 is a snap ring, fig. 9 is a handle, fig. 10 is a support sleeve, and fig. 11 is a schematic view of a coupling manual operation.

In fig. 1, the present electrically operated valve includes; the device comprises a coupler 1, an electric actuator 2, a valve 3 and a bracket 4. When the valve needs to be opened manually, the handle 17 and the pin 13 are pulled out, and then the handle 17 is rotated towards the direction of opening the valve, so that the valve can be opened. The output shaft 18 of the electric actuator 2 does not rotate, and only opens the valve.

In fig. 2, the output shaft 18 of the electric actuator 2 is coupled to the sleeve 12 by a key 20. A hole is formed in the shaft sleeve 12, one end of the pin 13 is inserted into a radial hole of the shaft sleeve 12, and the shaft sleeve 12 and the coupling body 11 are coupled together and rotate at the same time. The pin 13 is pulled out in the centrifugal direction of the sleeve 12, and the sleeve 12 is separated from the coupling body 11. The valve rod 19 is inserted into the coupling body 11 while rotating.

In fig. 3, the coupling portion with the valve stem 19 is processed into a square hole. The valve stem 19 is a square shaft.

In fig. 4, sleeve 12 is splined within an axial bore of sleeve 12, and sleeve 12 is keyed to output shaft 18. The radially directed holes are light holes.

In fig. 5, a snap ring groove is formed in the pin 13, and a snap ring is mounted. The other end of the pin 13 is provided with a handle 17.

In fig. 6, the cover 14 is provided with a hole through which the pin 13 is passed.

In fig. 7, the spring 15 is a compression spring.

In fig. 8, the snap ring 16 functions as a support sleeve 21.

In fig. 9, the handle 17 would be secured to one end of the pin 13.

In fig. 10, the support sleeve 21 supports the spring 15 while preventing the pin 13 from being eccentric.

In fig. 11, the pin 13 has been pulled out of the bore of the sleeve 12, disengaging the output shaft 18 from the valve stem 19.

The electric valve of the present invention will be described in detail below.

In fig. 2, the electric actuator 2 is in a fully closed state, and the output shaft 18 is also in a closed position. The output shaft 18 is connected with the shaft sleeve 12 through a key 20, the shaft sleeve 12 is connected with the shaft coupling body 11 through a pin 13, the valve rod 19 is inserted into the shaft coupling body 11, the valve rod 19 is also in a closed state, and the valve 3 is in a full-closed state.

In fig. 11, the electric actuator 2 is still in the fully closed state with the output shaft 18 in the closed position. The handle 17 is pulled outwardly to allow the pin 13 to exit the bore of the sleeve 12 and coupling body 11 are disengaged. The handle 17 is rotated 90 degrees counterclockwise around the central axis of the sleeve 12, and the coupling body 11 and the valve stem 19 are also rotated 90 degrees at the same time, so that the valve can be opened by the rotation of the handle 17. The actuator is still in the fully closed state.

In fig. 11, when the electric actuator 2 works, the output shaft 18 rotates 90 degrees in the counterclockwise direction, and the shaft sleeve 12 also rotates 90 degrees in the counterclockwise direction, and when the radial hole of the shaft sleeve 12 is consistent with the pin 13, one end of the pin 13 is reinserted into the radial hole of the shaft sleeve 12, so that the connection between the output shaft 18 and the valve rod 19 can be automatically completed.

Claims

1. An electrically operated valve for controlling the flow and pressure of fluid in a pipeline, comprising: the method comprises the following steps:

a coupling (1), an electric actuator (2), a valve (3) and a bracket (4),

the coupling (1) comprises: the coupling comprises a coupling body (11), a shaft sleeve (12), a pin (13), a cover (14), a spring (15), a snap ring (16), a handle (17) and a support sleeve (21); wherein the content of the first and second substances,

an output shaft (18) of the electric actuator (2) is connected with the shaft sleeve (12) through a key (20), a valve rod (19) of the valve (3) is inserted into a hole of the shaft sleeve body (11) to rotate together, the shaft sleeve (12) is connected with the shaft sleeve body (11) through the pin (13) to rotate together, the pin (13) is pulled out in the centrifugal direction of the shaft sleeve (12), the shaft sleeve (12) is separated from the shaft sleeve body (11), the handle (17) is rotated, the output shaft (18) does not rotate, and the shaft sleeve body (11) and the valve rod (19) rotate together.