KR100438374B1 - Valve controller - Google Patents

Abstract

The present disclosure relates to a valve driver for automatically controlling opening and closing of a valve by receiving a signal.

The valve driver is a valve driver for controlling the valve by operating the motor in accordance with the signal of the sensor installed in the room; A lower body divided into a first space in which the motor is accommodated by a partition wall, and a second space in which a guide hole is formed, and a valve fixing part is formed on a bottom of the guide part of the second space; An upper body having a first fixing groove and a second fixing groove formed therein and having a groove formed on one side thereof to cover the upper portion of the lower body; A rotating shaft having a cam, a first groove portion, and a second groove portion; A sensor unit fixed to an inner side of the upper body to control driving of the motor; A circuit unit fixed to the second space of the lower body; Inserted into the guide hole of the lower body is made to include an action portion to be moved up and down by the cam of the rotary shaft.

The present invention is to increase the price competitiveness of the product by reducing the number of parts by removing the brackets for fixing the respective members in the casing, and to control by a micro switch to increase the reliability of the product due to the precise control.

Description

Valve actuator {Valve controller}

The present invention relates to a valve actuator, and more particularly, to simplify the structure by reducing the number of parts, to reduce the production cost, to facilitate the installation and use with an input terminal, and to use the micro switch to open and close the valve. It relates to a valve actuator for accurate control.

In general, heating systems are installed in general houses, public facilities, and offices so that the indoor temperature is always adjusted to an appropriate temperature. Such a heating system usually adjusts the water temperature to appropriately adjust its internal temperature. For this purpose, the indoor system is provided with a sensor / controller that senses the temperature. The control signal transmitted from the sensor / controller controls the valve driver to regulate the flow rate of the hot water while intermittently controlling the temperature to perform the temperature control.

As shown in FIG. 1, the conventional valve actuator is fixed to the motor 50, the rotation shaft 30, the circuit part 60, and the like by the bracket 70, and then the inside of the lower body 10 and the upper body 20. It consisted of a structure that binds to.

The valve driver is configured to open and close the valve by using a signal in which contacts 64 fixed to the ends of a pair of metal pieces 62 formed on the circuit part 60 are joined or shorted according to the rotation of the rotation shaft 30. It was a way to control. However, this is because contact between the exposed contact 64, foreign matters, etc., the contactability is reduced, not only short life due to the wear of the contact 64, but also the metal piece 62 loses elasticity by long-term use, thereby causing contact malfunction There was a problem that occurred, the wire 42 for transmitting the signal of the sensing / control unit 40 is directly connected to the circuit unit 60, there was a problem in that it is inconvenient to install the valve driver in the valve.

The present invention has been made in order to improve the above problems, the valve actuator of the present invention to reduce the number of parts to reduce the number of production and production cost to increase the price competitiveness of the product, equipped with a micro switch valve for precise control of the valve opening and closing The purpose is to provide a driver.

The present invention also has an input terminal for receiving a signal of the sensing / control unit on the circuit portion of such a valve driver is to provide a convenience in installation.

1 is an exploded perspective view showing a conventional valve actuator,

Figure 2a, 2b is a cross-sectional view showing the control of the conventional valve driver,

Figure 3 is a perspective view of the valve actuator of the present invention,

4 is an exploded perspective view of the valve actuator of the present invention;

5A and 5B are cross-sectional plan views of the present invention;

Figure 6a, Figure 6b is a cross-sectional view showing the valve opening and closing operation of the present invention,

7A and 7B are sectional views showing the valve opening and closing state of the present invention.

※ Code Description of Main Parts of Drawing

40: detection / controller, 50: motor,

80: valve, 110: lower body,

112: first space, 114: second space,

120: upper body, 122,124: first and second fixing groove,

130: a rotating shaft, 132, 134: the first and second fixing parts,

136: cam, 142, 144: first and second sensors,

150: circuit part, 160: working part,

162: moving axis, 166: working axis.

The valve driver of the present invention for achieving the above object in the valve driver for controlling the valve by operating the motor in accordance with the signal of the sensor / controller installed in the room; A lower body divided into a first space in which the motor is accommodated by the partition wall, and a second space in which the guide hole is formed, and a valve fixing part fixed to the valve on the bottom of the guide hole of the second space; An upper body having a first fixing groove and a second fixing groove formed therein and having a groove formed on one side thereof to cover the upper portion of the lower body; A rotating shaft connected to the motor shaft of the motor and having a cam, a first groove portion, and a second groove portion; A sensor unit comprising first and second sensors respectively fixed to the first fixing grooves and the second fixing grooves formed inside the upper body so as to correspond to the first grooves and the second grooves of the rotation shaft to control driving of the motor; ; A circuit unit configured to transmit a control signal input from a sensor / controller to a motor, the circuit unit being fixed to a second space of the lower body; It is preferable to include an action portion inserted into the guide hole of the lower body to be elevated by the cam of the rotary shaft.

The moving shaft of the valve actuator of the present invention is configured to move up and down by being in close contact with a cam, and includes a moving shaft having a roller on its upper surface, a working shaft having a jaw formed at its center, and an elastic member inserted between the moving shaft and the working shaft. desirable.

Preferably, the circuit unit of the valve driver includes an input terminal for receiving a driving signal transmitted from a sensor / controller.

It is preferable that the said 1st, 2nd sensor of the valve actuator of this invention is a micro switch.

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

3 is an exploded perspective view of the valve actuator of the present invention, Figure 4 is an exploded perspective view of the valve actuator of the present invention, Figures 5a and 5b is a plan view of the upper body is removed.

The valve actuator of the present invention is largely the lower body (110); An upper body 120; A rotating shaft 130; Sensor unit 140; A circuit unit 150; It consists of an action part 160.

The lower body 110 is divided into a first space 112 in which the motor 50 is accommodated by the partition wall 113, and a second space 114 in which the guide hole 116 and the guide groove 117 are formed. At the bottom, a valve fixing part 118 communicating with the guide hole 116 of the second space 114 is formed.

The upper body 120 serves as the upper cover of the lower body 110, the first and second fixing grooves 122, 124 is formed therein, the groove 126 is formed on one side. .

The rotation shaft 130 is connected to the motor shaft 52 of the motor 50 and has a first groove 132, a second groove 134, and a cam 136.

The sensor unit 140 operates in response to the first groove 132 and the second groove 134 according to the rotation of the rotary shaft 130, so that the inside of the upper body 120 to be on / off (on / off) The first and second sensors 142 and 144 are respectively inserted into and fixed to the first and second fixing grooves 122 and 124 formed in the grooves.

The circuit unit 150 is inserted into the guide groove 117 of the lower body 110 and the input terminal 152 is exposed to the outside while being fitted into the groove 126 formed on one side of the upper body 120.

The acting portion 160 is a vertical movement while being in close contact with the rotating cam 136 of the rotary shaft 130 is composed of a large movement shaft 162, elastic member 164, the working shaft 166.

The moving shaft 162 is in contact with the cam 136 of the rotary shaft 130, the upper surface is formed with a roller 161 to prevent wear, and on one side of the upper surface of the display bar for displaying the valve opening and closing state ( 163 is formed.

The working shaft 166 is located below the moving shaft 162, and the jaw 165 is formed at the center thereof, and the bottom thereof is in contact with the opening / closing adjusting portion 82 of the valve 80.

The elastic member 164 is projected between the moving shaft 162 and the working shaft 166 to restore the moving shaft 162 moved upward by the rotation of the cam 136 of the rotary shaft 130 upward. will be.

6A and 6B are cross-sectional views showing the opening and closing operation of the valve driver according to the present invention, and FIG. 6A is a valve closed state and FIG. 6B is an open state.

As shown in FIG. 6A, when the closing signal is applied from the sensor / controller 40, the motor shaft 52 is rotated and the rotating shaft 130 on which the cam is formed is rotated. When the 160 is moved downward, the motor 50 is stopped so that the opening and closing control unit 82 is fixed while blocking the flow path of the valve 80.

On the contrary, when the open signal is applied from the sensor / controller 40 as shown in FIG. 6B and the cam 136 of the rotating shaft 130 rotates together while the motor 50 rotates, the convex portion of the cam 136 moves upward. By the elastic member 164, which is installed between the moving shaft 162 and the jaw 165 of the working shaft 166, the working portion 160 is returned to its original position upward, and the flow path of the valve 80 is blocked. The flow path of the valve 80 is opened while the opening / closing control part 82 also rises together.

This is because the rotation shaft 130 and the first and second grooves 132 and 134 connected thereto while the motor shaft 52 rotates control the first and second sensors 142 and 144, while the motor shaft 52 rotates. The motor 50 is stopped by detecting when 82) is downlinked as much as possible and when uplinked as much as possible. In this way, the motor 50 can be stopped at a desired position, and the opening and closing of the valve can be accurately adjusted.

7A and 7B are cross-sectional views showing the valve opening and closing state of the present invention.

As shown in FIG. 7A and FIG. 7B, the display rod 163 is formed on the side of the moving shaft 162 to indicate the state of the moving shaft 162 which moves up and down in accordance with the rotation of the cam 163. Opening and closing of the valve can be confirmed from the outside.

As described above, the valve driver 100 of the present invention rotates the motor 50 by sending a driving signal to the motor 50 by the circuit unit 150 that receives the open or close signal by a separate sensor / controller 40 installed outside. And the opening and closing control part of the valve 80 coupled to the lower valve fixing part 118 while the acting part 160 is moved by the cam 136 of the rotating shaft 130 rotated together with the motor shaft 52. By adjusting the 82, the valve 80 is opened and closed. At this time, the first switch 142 and the second switch 144 installed to correspond to the first groove 132 and the second groove 134 formed on the rotary shaft 130 may control the control signal according to the rotation of the rotary shaft 130. The opening and closing of the valve 80 is controlled.

As described above, the valve driver of the present invention reduces the production cost by reducing the number of parts, increases the accuracy by using a micro switch, and provides a valve driver that is equipped with a signal input terminal without any inconvenience due to wires when installed.

As such, the present invention reduces the number of parts, shortens the manufacturing process, and improves the mold cost, thereby enabling economical production at low cost.

In addition, the signal input terminal has been provided to solve the inconvenience of twisting the wire, etc. during installation, it is also effective to increase the accuracy of the valve control by controlling the motor using a micro switch.

Claims (4)

In the valve driver 100 for operating the motor 50 in accordance with the signal of the sensor / controller 40 installed in the room to adjust the valve 80, The partition 113 is divided into a first space 112 in which the motor 50 is accommodated, and a second space 114 in which the guide hole 116 is formed, and guide holes in the second space 114. 116, the lower body 110 is formed with a valve fixing part 118 is fixed to the valve 80, The upper body 120 to cover the upper portion of the lower body 110, the first fixing groove 122 and the second fixing groove 124 is formed therein and the groove 126 is formed on one side, It is connected to the motor shaft 52 of the motor 50, the first shaft 132, the second groove 134, the rotating shaft 130, the cam 136 is formed, It is fixed to the first fixing groove 122 and the second fixing groove 124 formed inside the upper body 120 so as to correspond to the first groove 132 and the second groove 134 of the rotary shaft 130, respectively. Sensor unit 140 including first and second sensors 142 and 144 to control driving of the motor 50, The circuit unit 150 is fixed to the second space 114 of the lower body 110 by receiving the driving signal transmitted from the sensor / controller 40 to the motor 50 and Valve actuator including an action portion (160) is inserted into the guide hole (116) of the lower body (110) is elevated by the cam (136) of the rotary shaft (130). The method of claim 1, The acting portion 160 is brought into close contact with the cam 136 to move up and down, the moving shaft 162 having a roller 161 on the upper surface, the working shaft 166 having a jaw formed at the center, and the moving shaft ( Valve actuator, characterized in that consisting of 162 and the elastic member 164 inserted between the working shaft (166). The method of claim 1, The circuit unit 150 has a valve driver, characterized in that it comprises an input terminal (152) for receiving a drive signal transmitted from the sensor / controller (40). The method of claim 1 The first and second sensors 142, 144 are valve actuators, characterized in that the micro switch.