KR200340163Y1 - Automatic opening and closing apparature of a valve - Google Patents

Abstract

The present invention relates to an automatic opening and closing device for automatically opening and closing various valves such as a gas valve or a water valve and monitoring such an opening and closing state, the opening and closing means for rotating the valve at a predetermined angle to open and close the valve, and the opening and closing. A motor for forward and reverse rotation to rotate the means, a motor driver for driving the motor by applying a drive signal to the motor, an on / off switch for inputting a signal for driving the opening / closing means, and a motor station from the motor driver to the motor When a drive signal for rotation is applied, a signal detector detects whether the motor rotates forward and backward by measuring a voltage corresponding thereto, and after applying a forward motor drive signal to the motor driver, a signal resulting from forward rotation from the signal detector is applied. Control unit for judging whether it is detected and input, and supplying AC power to reduce the pressure It characterized in that converts the direct current voltage consisting of a DC power supply to be supplied to the control section and the motor drive.

Description

AUTOMATIC OPENING AND CLOSING APPARATURE OF A VALVE}

The present invention relates to an automatic opening and closing device of the valve, and more specifically, to an automatic opening and closing device for automatically opening and closing various valves such as a gas valve or a water valve and monitoring such an opening and closing state.

Recently, new buildings are on the increase in size, and accordingly, large discount marts and restaurants are also on the rise.

According to such a reality, the gas and water facilities also have a much greater risk compared to the conventional installations, and have come to the point where safety and sufficient consideration must be installed.

Therefore, it is a reality that the device which automatically opens and closes valves, such as a gas installation, has been developed and spread | required in recent years.

By the way, the automatic opening and closing device of the valve which has been recently spread as described above has a problem in that the opening and closing state cannot be accurately stopped unless the user visually checks whether the valve is completely closed by inputting an opening / closing signal.

Because the user inputs the opening / closing signal to the control device and displays the state through the display device such as the LED, it checks the state change according to the value input to the control device and displays it with the display device such as the LED. This is because no mechanism is used.

In particular, the same principle is used to transmit data to a wired telephone as it is, and even if it is notified by using a data transmission method such as a short message service (SMS) to a user who is using a terminal such as a mobile phone or a PDA of a user who is going out, Because it does not transmit the, if overlooked it has a problem that can cause a large accident, such as a large fire accident.

Therefore, to solve such a problem, the object of the present invention is to control the forward and reverse rotation of the valve, and to accurately monitor and display the state of the motor to provide a reliable control device of the valve without visually checking the valve directly. To provide.

Another object of the present invention is to provide a control device that can accurately grasp the control state of the valve even when the user is out.

Still another object of the present invention is to provide a control device for a valve that can be applied to a valve device for various uses.

1 is a perspective view of an automatic opening and closing device of a valve according to the present invention,

Figure 2 is a circuit diagram of the automatic opening and closing device of the valve according to the present invention,

Figure 3 is a perspective view illustrating the opening and closing means of the valve opened and closed by the automatic opening and closing device of the valve according to the present invention,

Figure 4 is a view showing an application example of the automatic opening and closing device of the valve according to the present invention.

*** Explanation of symbols for main parts of drawing ***

10: piping 100: valve

102: lever 104: motor

108: opening and closing means 114: time setting switch

115: open and close setting switch 122: DC power supply

124: constant voltage unit 126: motor drive unit

128: control unit 130: signal detection unit

133: interface unit

The present invention relates to an automatic opening and closing device of a valve, the opening and closing means for rotating at a predetermined angle to open and close the valve, a motor for forward and reverse rotation to rotate the opening and closing means, and applying a drive signal to the motor to drive the motor A motor driving unit, an opening / closing switch for inputting a signal for driving the opening / closing means, and a driving signal for forward / reverse rotation is applied to the motor from the motor driving unit, and the voltage is measured accordingly to detect whether the motor is reversed. And a control unit for determining whether a signal due to forward and reverse rotation is detected and input from the signal detection unit, and applying a power supply to the motor drive unit, and reducing the voltage to a predetermined voltage or lower It is composed of a DC power supply to convert the voltage to the control unit and the motor driving unit And that is characterized.

With reference to the accompanying drawings, the automatic opening and closing device of the valve according to the present invention will be understood by the embodiments described in detail below.

1 is a perspective view of the automatic opening and closing device of the valve according to the present invention, Figure 2 is a circuit diagram of the automatic opening and closing device of the valve according to the present invention, Figure 3 is a valve of the valve opening and closing by the automatic opening and closing device of the valve according to the present invention. 4 is a perspective view illustrating the opening and closing means, Figure 4 is a view showing an application example of the automatic opening and closing device of the valve according to the present invention.

According to FIG. 1, a valve 100 installed in a pipe 10 such as a gas pipe or a water pipe to block or smoothly communicate gas or tap water flow generally has a valve 100 in a direction parallel to the pipe 10. When operating the lever 102 of the pipe 10, the gas or water in the pipe 10 communicates and moves the lever 10 perpendicular to the pipe 10 to block the flow.

At this time, the lever 102 of the valve 100 is attached to a drive shaft (not shown) by using the driving force of the motor 104 and is rotated within 90 ° by the rotation bar 106 of the lever 102 rotating. The valve 100 is automatically opened and closed by using the opening and closing means 108 capable of electronically controlling the opening and closing of the valve 100 to rotate within a predetermined angle.

The opening and closing means 108 as shown in FIG. 1 receives a control signal and a motor driving signal from the automatic switching device 110 as shown in FIG.

The automatic switching device 110 is for setting the time for maintaining the open state of the opening and closing means 108 and the four setting time display LEDs 112a, 112b, 112c, 112d on the left side of the front part. A time setting switch 114 is provided. At this time, the time setting switch 114 is repeatedly pressed several times, so that the four setting time display LEDs 112a, 112b, 112c, and 112d are repeatedly turned on / off to check the current setting time. do.

In addition, two valve opening / closing status LEDs 116a and 116b are provided on the right side of the front portion of the automatic opening and closing device 110, and an opening / closing setting switch 115 for setting whether the opening / closing means 108 is opened or closed. It is. At this time, when the on / off setting switch 115 is pressed in the current closed state, the open / closed state display LED 116a is turned on, and when pressed again, the open / closed state display LED 116b is turned on. You can check the current switch setting.

On the other hand, in the center of the front portion is a buzzer 118 that outputs whether the opening and closing state and whether the time setting, etc. as a beep (BEEP) is formed, the rear portion is formed with a plug 120 for power supply.

Hereinafter, referring to the automatic opening and closing device 110 of the valve 100 according to the present invention with reference to Figures 3 to 4, the automatic opening and closing device 110 using the plug 120 that can be supplied with 220V power It is powered and operated.

The 220V AC power input through the plug 120 is supplied to a DC power supply 122 made of a power supply for converting AC power to DC power and converted into a DC power of about 12V. Supplied.

At this time, since the DC power converted through the DC power supply 122 is not stable, the main circuit is internally passed through the constant voltage unit 124 composed of a regulator IC to maintain an external unstable voltage state in a stable state. Supplied.

As described above, the stable DC power supplied through the constant voltage unit 124 serves as a stable control power supply, thereby preventing the average life of the circuit device and the like from being shortened.

The DC power that has passed through the constant voltage unit 124 is used as a power source of the motor driving unit 126 for driving the motor 104 or input to the control unit 128 to be used for the overall driving of the circuit.

The controller 128 applies a forward or reverse rotation motor driving signal to the motor driving unit 126, and then determines whether a signal due to forward and reverse rotation is detected and input from the signal detection unit 130. The state change of the first half will be monitored.

Therefore, the motor 104 uses a motor 104 that can selectively perform forward rotation or reverse rotation when the polarity is changed.

When the control signal for closing the valve 100 from the control unit 128 is input to the motor driving unit 126, the motor 104 receives the motor driving signal for forward rotation to the motor 104 and opens and closes accordingly. The rotary bar 106 of the means 108 is rotated at a predetermined angle to close the valve 100.

On the other hand, the power supplied from the motor driving unit 126 to the motor 104 by using the first switching unit 132a and the second switching unit 132b to automatically switch when in the fully open state or the fully closed state motor By blocking the power supply to the source is to serve to prevent the crowd going to the motor (104).

That is, in the state as shown in the drawing, when the control signal for closing the valve 100 is input to the control unit 128, the motor driving unit 126 rotates forward to the motor 104 through the first switching unit 132a. The signal is applied to the motor driving unit 126 through the second diode D2 and is input to the controller 128 after the voltage signal is detected through the signal detecting unit 130.

Since the state of the driving circuit shown in FIG. 2 is a state in which the closing state is in progress, if the open state signal is input, the second switching unit 132b is opened, and thus the motor driving signal is not supplied to the motor 104 and thus the motor 104 is closed. ) Will do nothing.

However, when the closed state is completed, if the open state signal is input, since the second switching unit 132b forms the closed state, the motor driving signal is supplied to the motor 104 and the motor 104 is supplied. The reverse rotation operation is to open the valve 100.

Meanwhile, a signal for driving the opening / closing means 108 to the controller 128 such that the user can set the forward / backward rotation of the motor 104, that is, the opening / closing signal of the valve 100, to the controller 128 as described above. Opening and closing setting switch 115 for input is provided so that the user can set the opening and closing arbitrarily.

In addition, the controller 128 may apply the open / close signal to the motor driver 126 at intervals of several to several tens of seconds to periodically identify and control the current state of the valve 100.

In monitoring the state of the motor 104, when the motor 104 is disconnected, all of the open / close state display LEDs 116 are set to blink for a predetermined time or a control signal input from the controller 128. According to the present invention, it is preferable to design a warning sound through the buzzer 134 that outputs the current failure state and operation state as a sound source.

In addition, as shown in FIG. 4, the operation state of the motor 104 is the center of the trunk line telephone 129 connected to the trunk line through the interface unit 133 connected to the outside by shaping data in the controller 128. The user can check the data by using a short message service (SMS) format to a wireless terminal 131 such as a mobile phone or a PDA of a user who performs control and monitoring by transmitting to a control device (not shown). .

The control unit 128 has a time setting switch 114 for setting the opening time of the valve 100, and accordingly 4 for displaying the setting time in four types of 10 minutes, 20 minutes, 30 minutes, and the off mode. LEDs 112a, 112b, 112c, and 112d for setting time display are provided.

In addition, a test switch 136 is provided to test whether the circuit is normally operated by inputting a predetermined control signal to the controller 128.

Looking at the signal detection unit 130 in more detail, the signal detection unit 130 serves to determine whether the motor drive signal is properly supplied to the motor 104 and whether the operation state is normal, When the motor driving signal supplied from the motor driving unit 126 to the motor 104 is input, the internal resistance of the motor driving unit 126 and the resistor R1 installed outside the voltage divider to a predetermined voltage and a voltage above a predetermined voltage It is composed of a diode (D3) and a zener diode (ZD) for preventing the input to the control unit, the signal voltage within the allowable voltage is input to the control unit 128.

In addition, the voltage signal detected by the signal detection unit 130 is configured to be supplied to the control unit 128 via a filter for removing noise (138).

Hereinafter, the operation of the automatic opening and closing device of the valve according to the present invention with reference to Figures 1 to 4 will be described in detail.

When the AC power is supplied through the DC power supply unit 122, the AC power is converted into the DC power through the constant voltage unit 124, which is supplied to the entire circuit and the controller 128.

(A) Once the power is supplied to the control unit 128, the operating program stored in its own memory (not shown) is driven to initialize the whole system to check each signal and standby state and set initial values. .

(B) After the initial value is set, the open time setting of the valve 100 is set to Off by default. When the current valve position is checked, the open state display LED 116a is turned on. In the closed state, the closed state display LED 116b is turned on.

On the other hand, when the power is cut off during the opening and closing of the valve, a forward rotation signal is applied to the motor 104 to close the valve 100 so as to lock the valve 100, and when the motor 104 is disconnected, One of the LEDs 116a and 116b keeps blinking for a certain time.

(C) When the initialization is completed through the above result, when the opening and closing setting switch 115 is pressed in the open state, the closing signal is input from the control unit 128 to the motor driving unit 126 and the forward rotation signal is transmitted to the motor. When supplied to the 104 and the motor 104 is driven and the valve 100 is closed and the first switching unit 132a is switched to the off state, the closing state display LED 116b is turned on to turn off the closing state. Will be displayed.

On the other hand, in such a state, it is also possible to press the time setting switch 114 repeatedly to set the open time of the valve 100 to 10 minutes, 20 minutes, 30 minutes, or Off mode.

(D) During the setting or when there is no other setting, the controller detects whether the driving power is supplied to the wiring of the motor 104 periodically at about 10 second intervals, and detects it by the signal detecting unit 130 to detect the motor. It checks the state of the 104 and outputs it to the buzzer 134 as a sound source or displays the opening and closing state display LED 116.

(E) The CO line telephone connected to the interface 133 immediately when the state of the valve 100 or the problem of the wiring of the motor 104 occurs when the state of the motor 104 is accurately and periodically monitored. 129 is automatically notified to the user terminal 131 using a message such as a short message service (SMS).

Although the embodiments of the present invention have been described in detail as described above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to the range substantially equivalent to the embodiments of the present invention.

As can be seen from the above description, according to the automatic opening and closing device of the valve according to the present invention, the user who controls and monitors the valve checks the operation and condition of the valve with confidence, but the result can be trusted, so follow-up measures It can quickly and accurately prevent large accidents in advance.

In addition, even when a user who controls and monitors the valve goes out, the state of the automatic switchgear may be checked through a short message service or the like, and if there is a need for control, another person may immediately contact or directly control the valve.

Claims (4)

Opening and closing means for rotating the valve at a predetermined angle to open and close the valve, a motor for forward and reverse rotation to rotate the opening and closing means, a motor driver for driving the motor by applying a driving signal to the motor, and a signal for driving the opening and closing means. An open / close switch for input, a signal detection unit for detecting whether the motor is in reverse rotation by measuring a voltage according to a driving signal applied to the motor from the motor driving unit, and a forward / reverse motor driving signal in the motor driving unit. The controller detects whether or not a signal due to forward and reverse rotation is detected and input from the signal detector, and receives an AC power supply, decompresses the voltage below a predetermined voltage, converts the DC voltage, and supplies the controller to the controller and the motor driver. Automatic opening and closing device of the valve, characterized in that the DC power supply. The method of claim 1, The signal detecting unit is provided with a voltage supplied from the motor driving unit to the motor is input to the internal resistance of the motor driving unit and the outside is divided into a predetermined voltage; And a diode and a zener diode for preventing a voltage of a predetermined voltage or more from being input to the control unit. The method of claim 1, And an interface unit for transmitting the detection signal of the signal detection unit to an external trunk line telephone from the control unit. The method of claim 1, The valve is an automatic opening and closing device of the valve, characterized in that any one of a gas valve or a water valve.