CN217539657U

CN217539657U - Electric valve actuating device

Info

Publication number: CN217539657U
Application number: CN202221684167.0U
Authority: CN
Inventors: 张荣荣; 赵强; 李纪红
Original assignee: Shanghai Pumason Industrial Control System Co ltd
Current assignee: Shanghai Pumason Industrial Control System Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-10-04
Anticipated expiration: 2032-07-01

Abstract

The utility model discloses an electrically operated valve actuating device, the electrically operated valve includes valve body, valve rod and electric actuator, electric actuator passes through the valve rod and is connected with the valve body, electric actuator includes hollow casing, the casing front side is equipped with the display screen, and casing one side is equipped with step motor, still be equipped with control circuit board in the casing, control circuit board is connected with step motor and display screen and controls step motor work and the demonstration of control display screen, the valve rod end is equipped with the rack, be equipped with the gear on step motor's the output shaft, wheel and rack toothing makes step motor drive gear can drive the valve rod and carry out the up-and-down motion, the casing passes through fixed connector and valve body fixed connection. The vertical movement of the valve rod can be realized through the gear rack so as to adapt to a new valve style, and meanwhile, the opening and closing states of the valve can be directly displayed through the display screen.

Description

Electric valve actuating device

Technical Field

The utility model relates to an electronic executive valve especially relates to an motorised valve actuating device.

Background

Most of the existing electrically operated valves are ball valves, and the opening and closing of the valve are performed by controlling a valve rod and a valve core in a rotating mode, so that the valve rod of the ball valve is directly driven by a motor to rotate, and the opening and closing of the valve can be realized, for example, the chinese patent ZL201320385374.0. However, with the diversification development of valves, there are more kinds of valves that need to be designed to open, for example, as shown in fig. 1, the valve includes a valve body 1, a left inlet and outlet 2 and a right inlet and outlet 3 are provided on the valve body 1, the left inlet and outlet and the right inlet and outlet are all arc-shaped channels, a valve seat 4 is provided at the inner end communication position of the left inlet and outlet and the right inlet and outlet, a lower bracket 5 is fixed at the upper end of the valve body, a valve rod 6 is provided in the valve body and the lower bracket, the lower end of the valve rod is connected with a valve core 7 capable of blocking the valve seat, and the valve can be opened and closed only by driving the valve rod to move up and down; the existing electric valves are rarely designed, and meanwhile, the existing electric valves are mostly not displayed, so that the opening or closing of the valve cannot be visually seen.

SUMMERY OF THE UTILITY MODEL

In view of the design that does not have linear drive that present motorised valve exists and can't directly perceivedly see the problem of the condition of opening and close, the utility model provides a motorised valve actuating device can realize the up-and-down motion of valve rod through rack and pinion in order to adapt to new valve pattern, can directly show opening of valve through the display screen closed state simultaneously.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

the utility model provides an electrically operated valve actuating device, the electrically operated valve includes valve body, valve rod and electric actuator, electric actuator passes through the valve rod and is connected with the valve body, electric actuator includes hollow casing, the casing front side is equipped with the display screen, and casing one side is equipped with step motor, still be equipped with control circuit board in the casing, control circuit board is connected and controls step motor work and the demonstration of control display screen with step motor and display screen, the valve rod end is equipped with the rack, be equipped with the gear on step motor's the output shaft, wheel and rack toothing make step motor drive gear can drive the valve rod and carry out the up-and-down motion, the casing passes through fixed connection spare and valve body fixed connection.

According to the utility model discloses an aspect, fixed connector establishes the connecting pipe on the valve rod for the cover, connecting pipe one end is connected bottom the casing, and the other end is connected on the valve body but valve rod free activity in the connecting pipe.

According to the utility model discloses an aspect, be equipped with the wall and the lower wall of bushing casing in the casing, the cover pipe box is established on the valve rod, sheathed tube one side is equipped with the opening, the rack orientation of valve rod the opening sets up, the gear is followed the opening get into the cover intraductally with rack toothing.

According to an aspect of the present invention, the inner diameter of the sleeve is slightly larger than the outer diameter of the valve rod, so that the valve rod does not deviate.

According to an aspect of the present invention, the housing top is provided with a through hole, and the through hole can allow the end of the valve rod to pass through.

According to an aspect of the present invention, a cover is disposed on the through hole, and the cover is fixedly connected to the top of the housing.

According to an aspect of the utility model, be equipped with the operating assembly on the casing of display screen below.

According to an aspect of the present invention, the stepping motor is a servo stepping motor.

According to an aspect of the utility model, be equipped with power source on the casing, power source is connected with the circuit board electricity.

According to an aspect of the utility model, be equipped with temperature sensor in the casing, temperature sensor with control circuit board connects.

The utility model discloses the advantage of implementing: the output shaft of the stepping motor is provided with the gear, the valve rod is provided with the rack, and the rotating motion of the stepping motor is converted into the linear motion of the valve rod through the meshing of the gear and the rack, so that the valve which is opened and closed linearly by the valve rod can be suitable; furthermore, sensors such as a temperature sensor are arranged, and related parameters can be displayed on a display screen.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a valve structure according to the background art of the present invention;

fig. 2 is a schematic structural view of an electric valve actuating device according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of an electric valve actuator according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 2 and fig. 3, an electric valve actuating device, the electric valve includes a valve body 1, a valve rod 2 and an electric actuator 3, the electric actuator is connected with the valve body through the valve rod, the electric actuator includes a hollow casing 31, a display screen 32 is arranged on the front side of the casing, a stepping motor 33 is arranged on one side of the casing, a control circuit board 34 is further arranged in the casing, the control circuit board is connected with the stepping motor and the display screen and controls the operation of the stepping motor and the display of the display screen, a rack 21 is arranged at the end of the valve rod 2, a gear 331 is arranged on an output shaft of the stepping motor, the gear and the rack are meshed to enable a stepping motor driving gear to drive the valve rod to move up and down, and the casing is fixedly connected with the valve body through a fixed connecting piece 4. A stepper motor is an electric motor that converts electrical pulse signals into corresponding angular or linear displacements. When a pulse signal is input, the rotor rotates by an angle or advances one step, the output angular displacement or linear displacement is in direct proportion to the input pulse number, and the rotating speed is in direct proportion to the pulse frequency; the angular displacement of the stepping motor is strictly proportional to the number of pulses input and is synchronized in time with the pulses. The required rotation angle, speed and direction can thus be obtained by controlling the number, frequency and phase sequence of the motor windings. The step angle of the stepping motor is generated by equal proportion control based on the motor structure, and if the subdivision control of the control circuit is not changed, the step angle of the stepping motor is theoretically a fixed angle. Therefore, the control circuit board can accurately know the number and direction of the rotation cycles of the stepping motor through the information such as pulse signals sent by the control circuit board, and the information is converted into displayable data to be displayed on the display screen. The stepping motor may be a commercially available motor, for example, kaifu Y07-59D 1-1300. The control circuit board selects a PCB board with a processor, including the processor and peripheral circuits thereof, for example, the models of the processor which can be adopted are 8096, 8XC196KC, 8XC196KB and the like of ntel company.

In practical application, the fixed connecting piece 4 is a connecting pipe sleeved on the valve rod, one end of the connecting pipe is connected with the bottom of the shell, the other end of the connecting pipe is connected to the valve body, and the valve rod can move freely in the connecting pipe. Establish to the connecting pipe, can protect the valve rod of the inside, avoid the valve rod to be damaged by external force, lead to the valve to go out the problem.

In practical application, a sleeve 41 is arranged in the shell and connected with the wall and the lower wall of the shell, the sleeve is sleeved on the valve rod, an opening 42 is formed in one side of the sleeve, the rack of the valve rod faces the opening, and the gear enters the sleeve from the opening and is meshed with the rack.

In practice, the internal diameter of the sleeve is slightly larger than the external diameter of the valve stem so that the valve stem does not deflect.

In practical application, the top of the housing is provided with a through hole 311, and the through hole can be used for the tail end of the valve rod to pass through.

In practical application, a cover 43 is arranged on the through hole, and the cover is fixedly connected with the top of the shell.

In practical application, an operating assembly 35 is arranged on the housing below the display screen.

In practical application, the stepping motor is a servo stepping motor. Compared with a stepping motor, the servo motor has higher precision and is suitable for valves needing higher precision.

In practical application, a power interface is arranged on the shell and electrically connected with the circuit board.

In practical application, a temperature sensor is arranged in the shell and connected with the control circuit board, the temperature of a working scene of the valve can be obtained through the temperature sensor and displayed on a display screen, and problems can be found and solved in time; furthermore, other related sensors such as a humidity sensor, a carbon monoxide sensor, a methane sensor and the like can be used for data acquisition and display.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an electrically operated valve actuating device, the electrically operated valve includes valve body, valve rod and electric actuator, electric actuator passes through the valve rod and is connected with the valve body, a serial communication port, electric actuator includes hollow casing, the casing front side is equipped with the display screen, and casing one side is equipped with step motor, still be equipped with control circuit board in the casing, control circuit board is connected and controls step motor work and the demonstration of control display screen with step motor and display screen, the valve rod end is equipped with the rack, be equipped with the gear on step motor's the output shaft, gear and rack toothing make step motor drive gear can drive the valve rod and carry out the up-and-down motion, the casing passes through fixed connector and valve body fixed connection.

2. The electric valve actuator as claimed in claim 1, wherein the fixed connecting member is a connecting tube sleeved on the valve stem, one end of the connecting tube is connected with the bottom of the housing, the other end of the connecting tube is connected with the valve body, and the valve stem is freely movable in the connecting tube.

3. The electric valve actuator according to claim 1, wherein a sleeve is arranged in the housing and connects the wall and the lower wall of the housing, the sleeve is sleeved on the valve rod, an opening is arranged on one side of the sleeve, the rack of the valve rod is arranged towards the opening, and the gear enters the sleeve from the opening and is meshed with the rack.

4. The electrically operated valve actuator of claim 3, wherein the sleeve has an inner diameter slightly larger than the outer diameter of the valve stem so that the valve stem does not deflect.

5. The electric valve actuator according to claim 1, wherein the top of the housing is provided with a through hole for passing the end of the valve stem.

6. The electric valve actuator according to claim 5, wherein a cover is disposed on the through hole, and the cover is fixedly connected with the top of the housing.

7. The electric valve actuating device according to any one of claims 1 to 6, wherein an operating component is arranged on the housing below the display screen.

8. The electrically operated valve actuator of claim 7, wherein said stepper motor is a servo stepper motor.

9. The electric valve actuating device as claimed in claim 7, wherein the housing is provided with a power interface, and the power interface is electrically connected with the circuit board.

10. The electric valve actuator according to claim 7, wherein a temperature sensor is arranged in the housing, and the temperature sensor is connected with the control circuit board.