KR200199722Y1 - An automatic cutoff against gas - Google Patents

Abstract

The present invention is piped to the side wall surface of the housing and the gas inlet pipe connected to the main gas pipe, the pipe body consisting of a gas supply pipe connected to the heating mechanism, and gas blocking means for automatically blocking the gas is disposed between the inlet pipe and the supply pipe; A manual operation opening / closing valve connected to the bypass pipe branched at each of the inflow pipe and the supply pipe, and manually supplying and cutting off gas, and a time operation unit for inputting time in minutes in consideration of cooking or heating time by the user; A display display unit for displaying an input time and a time elapsed, and a microcomputer for determining a time input from the time control unit and a preset reference time to output a warning sound, and then reaching the input time and controlling the gas shutoff means to block gas. And a warning sound output unit for outputting a warning sound according to the signal of the microcomputer. Alternatively, if the time is input in consideration of the heating time of the object to be heated, the alarm sounds automatically when the input time reaches the preset reference time, and automatically shuts off the gas at the end of the input time to prevent large accidents in gas leakage. In other words, economic damages can be prevented as well as human damage.

Description

Gas Automatic Shut Off {An Automatic Cutoff against Gas}

The present invention relates to a gas automatic shut-off device, in particular, when the cooking time when cooking food is input, when the input time reaches the preset reference time outputs a warning sound, after a few minutes automatically cut off the gas supply to the user's carelessness The present invention relates to an automatic gas shutoff device for preventing a gas leakage accident in advance.

Gas is used as the most important energy source in daily life. Gases generally classified into city gas, liquefied petroleum gas (hereinafter, abbreviated as 'gas'), and the like are various types depending on their purpose of use.

However, the gas has the disadvantage of promoting convenience in living for cooking and heating, and having a high combustion rate compared to other energy sources, and having an economic saving effect. have.

But most of the gas accidents are caused by simple illusions and carelessness. For example, in normal homes and restaurants, non-combustible gas is often leaked while going out of the food during cooking or when the flame is turned off inadvertently, and a large fire is caused by the wrong valve operation.

Therefore, in recent years, various devices for automatically blocking gas have been developed, but there are no complex blocking devices considering various environments, such as simple and expensive structures and solenoid valves using instantaneous current. .

Moreover, the interruption device using the instantaneous current has a problem that the use of gas is difficult because the closed state is maintained during power failure.

The present invention has been made in view of the above-mentioned conventional problems, and the object thereof is that when a user inputs in consideration of a cooking time, an alarm sounds automatically by comparing the input time with a preset reference time, and then supplies gas after a few minutes. To prevent the risk of explosion and fire due to the outflow of gas, and to provide an automatic gas shut-off device that can prevent the economic loss and damage to follow.

Another object of the present invention is to provide a gas shut-off device which can be operated manually and can be used regardless of power supply, i.e., in case of power failure, and is easy to operate and excellent in manufacturability.

1 is a perspective view of the present invention,

2 is a plan view showing a main part of the present invention,

3 is a block diagram of the present invention,

4 is a circuit diagram showing an embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

10: blocking device 100: housing

110: cover 120: gas inlet pipe

121 gas supply pipe 130 solenoid valve

150: manual open and close operation valve 200: control box

210: control box body 220: display unit

240: time operation unit 250: power supply unit

270: micom

Hereinafter, the present invention will be described in detail.

The blocking device of the present invention is composed of a housing equipped with a gas blocking means connected to the gas pipe, and a control box containing a microcomputer for controlling the gas blocking means by a user's operation.

The gas shutoff means preferably uses a solenoid valve, and may be of another type, if necessary. A gas inlet pipe and a gas supply pipe are connected to both sides of the valve, and are connected to the inlet pipe main gas pipe, and the gas supply pipe is connected to a heating mechanism such as a gas stove and an oven using gas as a heat source.

In addition, a bypass pipe is connected to each of the gas inlet pipe and the gas supply pipe so that the gas can be supplied and shut off by a manual operation opening / closing valve connected to these bypass pipes in the event of failure or power failure of the valve.

The control box is a time operation means for the user to operate the input time, a microcomputer for controlling the solenoid valve by comparing the input time and the preset time input from the time control means, and outputs a warning sound according to the signal of the micom It consists of warning means.

According to the present invention is a device for setting the user time by operating the time operation means, the microcomputer determines the input time and the predetermined reference, and outputs a warning sound, when the input time reaches the device to cut off the gas supply.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

1 shows an example of the blocking device 1 to which the present invention is applied, and includes a housing 100 in which gas blocking means is built, and a control box 200 for controlling the blocking means.

Here, the housing 100 and the control box 200 of the present invention are composed of a rectangular enclosure as shown in the drawing, but may be modified in various forms such as a circle or a polygon as necessary, and preferably manufactured by injection molding a synthetic resin do.

The housing 100 is open at the top thereof, and the cover 110 is covered to allow internal parts replacement and repair.

The cover 110 has a through hole 111 is formed in each corner portion, the screw hole 112 is formed in the housing 100 through the through hole 111, the bolt 113 is fastened to the screw hole 112 The cover 110 is separated and assembled by).

Of course, the assembly method of the cover 110 may be modified in a way by fitting.

The housing 100 is composed of the front and rear sides 101 and 102 and both side walls 103, the tubular body is installed through each of the side wall 103 surface.

The pipe is connected to the main gas pipe 20 of the external gas inlet pipe 120 for introducing gas, and a gas supply pipe 121 is connected to a heating mechanism (not shown), such as a gas stove, oven to supply gas to them. And one side of these tubular bodies is connected to the gas blocking means located inside the housing 100, and each of the opposite sides thereof protrudes outward through the wall surface 103.

A gas blocking means is disposed between the gas inlet pipe 120 and the supply pipe 121, that is, the internal space 104 of the housing 100. Preferably, the gas blocking means uses a solenoid valve 130.

On the other hand, the solenoid valve 130 and the connection of the tube is made by the T-type tube 140, which is to connect the bypass pipe 151 so that gas supply is possible even in the case of a power failure and a failure of the solenoid valve.

In other words, the connection pipe 131 is piped to both sides of the T-shaped pipe 140 to connect the solenoid valve 130 and the gas inlet pipe 120, so that one end of the bypass pipe 151 is connected to the central portion thereof. However, the other end of the bypass pipe 151 is connected to the manual operation opening and closing valve 150.

Of course, the T-shaped pipe 140 is disposed between the solenoid valve 130 and the gas supply pipe 121 in the same structure as the bypass pipe 151.

That is, the bypass pipe 151 is connected to the center of the T-shaped pipe 140 connecting the solenoid valve 130 and the gas inlet pipe 120, the solenoid valve 130, and the gas supply pipe 121, respectively. The end is connected to the manual override valve 150 so that when the power supply is interrupted such as a power failure or the solenoid valve 130 is broken, the manual override valve 130 is operated to enable the supply and shutdown of gas.

Wherein the manual operation on-off valve 130 is provided with a handle 152, the structure is the same as the general gas on-off valve is not described in the present invention any more.

The control box 200 is composed of a lower body 210 and a cover 220 for opening and closing the body 210, the cover 220 is opened and closed in the same structure as the opening and closing method of the cover 110 described above. do.

The display 220 is mounted on the upper surface of the cover 220 to be easily viewed by the user, and a time manipulation unit 240 for inputting a cooking time is provided, and on and off of the power supply unit 250 for supplying power. The switch 251 is provided on one side of the main body 210.

3 is a block diagram of the present invention, and FIG. 4 is a circuit diagram showing the block diagram in more detail. Of course, this schematic is just one example.

In the drawing, as an example of the power supply unit 250, when the ON, OFF switch 251 provided on one side of the box body 210 is turned on, power is supplied to each circuit.

The time manipulation unit 240 is input by predicting the time according to the cooking and heating by the user, the alarm sound output unit 260 is operated according to the passage of the input time, and then driving to operate the solenoid valve 230 The control unit 280 is operated to block the gas.

The input unit of the time manipulation unit 240 may be a combination of seconds, minutes, and hours, but may be selectively used. Preferably, the input unit is inputted in minutes. It can be increased by 5 minutes based on.

Of course, during the operation it is displayed to decrease by 1 minute.

Meanwhile, the time manipulation unit 240 is composed of several operation switches 241 as shown in the drawing. Preferably, the time manipulation unit 240 is composed of a switch for increasing and decreasing time, a start switch, a setting switch, and the like. This is merely an example, and may be other forms.

The microcomputer 270 connected to the time manipulation unit 240 determines the input time input through the time manipulation unit 240 and the preset reference time to operate the beep output unit 260 to output a warning sound.

Here, the warning sound is about 3 seconds before the completion of about 5 seconds, but this time can also be adjusted, of course, there may be several types of warning sounds.

For example, a melody or a warning sound and a siren sound input in a certain form may be selected.

After the output of the warning sound, the microcomputer 270 outputs a signal to the driving controller 280 to operate the solenoid valve 130.

According to the present invention having the above configuration, when the user inputs the gas cutoff time in consideration of the cooking time or the heating time of another heating object through the time manipulation unit 240, the microcomputer 270 applies a signal to the warning sound output unit 260. By outputting a warning sound, when the input time is reached, a signal is output to the drive control unit 280 to operate the solenoid valve 130 to cut off the gas.

In other words, the user operates each switch 241 of the time manipulation unit 240 to set a heating time of cooking or other heating object, and then presses a start switch.

After a predetermined time elapses, that is, three minutes before the deadline time, the microcomputer 270 outputs a signal to the warning sound output unit 260 to generate a warning sound, thereby reminding the user that the time is short. Of course, the output time of the warning sound input to the microcomputer 270 is variable, and there may be several types of warning sounds.

If the user does not turn off the power supply switch 251 even after the occurrence of the warning sound, the input time will elapse, and when the time is reached, the microcomputer 270 controls the driving control unit 280 to output a gas shutoff signal to the solenoid. By operating the valve 130, the gas is shut off.

On the other hand, the manual opening and closing operation valve 150 when the solenoid valve is not opened due to the interruption of power supply such as power failure or when the gas is cut off in a state in which the heating is not completed completely by setting the wrong time, supply the gas and On the contrary, the gas may be blocked.

As described above, when the user inputs a time in consideration of the cooking time, an alarm sounds automatically when the input time reaches a preset reference time, and then automatically shuts off the gas when the input time ends.

This invention has the effect of preventing the risk of explosion and fire due to the outflow of the user due to carelessness and oblivion of the user, and to prevent the economic loss and human injury.

In addition, the present invention is capable of shutting off the supply of gas by manual operation when the solenoid valve is not operated due to a failure and a power failure.

Claims (3)

A pipe body comprising a housing, a gas inlet pipe connected to both side wall surfaces of the housing and connected to a main gas pipe, and a gas supply pipe for supplying the gas to a heating mechanism; A gas blocking means disposed between the inlet pipe and the supply pipe to automatically shut off the gas; A manual operation opening and closing valve connected to a bypass pipe branched from each of the inflow pipe and the supply pipe to manually supply and block gas; A time operation unit for inputting a time in minutes in consideration of the cooking or heating time by the user; A display display unit for displaying the input time and time elapsed; A microcomputer that determines a time input from the time manipulation unit and a preset reference time to output a warning sound, and then reaches an input time and controls the gas shutoff means to block gas; Gas shutoff device characterized in that consisting of a warning sound output unit for outputting a warning sound in accordance with the signal of the microcomputer. The gas shutoff device according to claim 1, wherein the gas shutoff means is a solenoid valve. The gas shutoff apparatus of claim 1, wherein the time manipulation unit comprises a start switch, a increase / decrease switch, and a setting switch, and is input in a minimum unit of 1 minute based on a minimum of 5 minutes.