KR20050011347A - apparatus for informing gas valve unlocked and method thereof - Google Patents

Abstract

PURPOSE: A gas valve-safe locking alarm device and a method are provided to indirectly prevent an accident by making a user recognize the locking state of a gas valve. CONSTITUTION: A gas valve-safe locking alarm device includes a valve opening and closing-sensing part(100) sensing the opening and closing state of a gas valve(102); a gas flow-sensing part(110) sensing the gas flow state in a gas pipe mounted with the gas valve; and a warning message output part(120) outputting a warning message if that the gas valve is opened and that a stopped state of a gas flow in the gas pipe is continued for predetermined time are decided by the sensing results of the valve opening and closing-sensing part and the gas flow-sensing part.

Description

Apparatus for informing gas valve unlocked and method

The present invention is a notification device for ventilating the safe locking of the gas valve, the intermediate valve of the gas pipe connected to the gas range, that is, the gas valve is opened after the use of the gas range using LPG or LNG, for example, if the state is opened for a predetermined time And a gas valve safety lock notification device and method for delivering a warning message and then automatically locking the gas valve.

In general, a gas valve for supplying or blocking gas is installed in the middle of a gas pipe for supplying gas to a gas stove or a gas stove, but such a gas valve is used only to supply and shut off gas. You can only play a role.

Accordingly, when the gas valve is opened after the use of a gas range or the like, there may be a gas leak due to the failure of the gas range or the like, which may lead to a large irreversible disaster.

In the related art, in order to prevent such a gas leakage accident in advance, a method of installing a timer on the gas valve has been frequently used.

This is to install a timer on the gas valve is to force the mechanical closing of the gas valve by an electric signal when the set time elapses, it can be said that there is an advantage in terms of safety because the gas valve is cut off at the source, but in actual use environment Was a hassle to set the setting time for every use.

For example, if you need to heat it for a sufficient time, such as a shaker, forget that the timer will only run for a short time, which is the initial setting, and if you do anything else, the cooking material will not boil properly or you will have a short cooking time, such as an egg frying. In the case of many dishes requiring the gas valve to close during cooking due to the initial short set time, it may occur that the operation of opening the gas valve frequently.

As a result, users often ignore the setting time or remove the setting time, unlike the basic purpose of the timer installation.

In addition, the gas valve lock device by the timer is mainly operated by using the electricity of the battery, if the battery is weak, if the abnormality during operation may occur when the gas valve does not close in a state that the user does not recognize, In this case, not only will it serve as a gas lock, but it can also directly cause a gas accident.

In addition, in the conventional case, a sensor is attached to detect a gas leak to close the gas valve when the gas is leaked, but in this case, the gas leak is detected after detecting the gas, which prevents the gas from being blocked at the source. The disadvantage is that it is somewhat disadvantageous.

The present invention is a valve opening and closing detection unit for detecting whether the gas valve opening and closing, a gas flow detection unit for detecting the gas flow of the gas pipe and a warning message output to output a warning message according to the detection result of the valve opening and closing detection unit and the gas flow detection unit It is an object of the present invention to provide a gas valve safety lock notification device and method that allows the user to recognize whether the gas valve is locked or indirectly prevent the gas safety accident in advance.

1a and 1b is a schematic outline and circuit diagram of the gas valve safety lock notification device according to the present invention.

Figure 2 is an exploded view of the main frame of the gas pipe of the gas valve safety lock notification device according to the present invention.

Figure 3 is a schematic external view of a gas valve safety lock notification device according to another embodiment of the present invention.

4 is a timing chart for explaining the operation of the gas valve safety lock notification device according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100: valve open and close detection unit 110, 110 ': gas flow detection unit

106, 118, 118 ': Reed switch 120: Warning message output

130: forced cutoff switch 140: power supply trigger

150: power supply

Gas valve safety lock notification device according to the present invention to achieve the above object, the valve opening and closing detection unit for detecting whether the gas valve opening and closing; A gas flow detector for detecting a gas flow in the gas pipe having the gas valve; A warning message output unit for outputting a warning message when the gas valve is opened and it is determined by the detection result of the valve opening / closing detection unit and the gas flow detection unit that the state in which the gas flow in the gas pipe is stopped lasts a predetermined time (td) Characterized in that it is included.

Here, the valve opening and closing detection unit is composed of a magnet piece attached to a predetermined area of the gas valve handle, and a reed switch operated by the magnetic force of the magnet piece, the reed switch is a gas valve by the movement of the gas valve handle When it is open (ON), when closed it is characterized in that the operation (OFF).

The gas flow detector may include a magnet piece whose position is changed by a gas flow in the gas pipe, and a reed switch formed on an outer wall of the gas pipe and operated by a magnetic force of the magnet piece. When the gas flows, the distance from the magnet piece becomes far (OFF), and when the flow of gas stops, the distance from the magnet piece approaches and operates on (ON).

Here, the magnet piece formed in the gas pipe is a magnetic ball moving by the flow of gas, a spring connected to the magnetic ball to return the magnetic ball to the original position when the gas flow stops, and to fix the spring in the gas pipe It consists of a ring guide.

Alternatively, the gas pipe in a portion where the gas flow detector is installed is bent up in a 'U' shape, and the gas flow part is formed on a magnetic ball whose position is changed by the gas flow in the gas pipe, and is formed on an outer wall of the gas pipe, and the magnetic Reed switch is operated by the magnetic force of the ball.

The apparatus may further include a device including a motor or an electromagnet which automatically closes the gas valve after outputting a warning message for a predetermined time ta from the warning message output unit. The apparatus may further include a power supply device for supplying power to the warning message output unit and a forced shutoff switch for arbitrarily shutting off power by the power supply device.

The warning message output unit may include a delay time timer for setting the predetermined delay time td, a voice synthesis integrated circuit IC generating a warning message after the delay time td elapses, and the warning message is output. It is characterized in that it comprises a holding time timer for setting a predetermined time (ta).

In addition, the gas valve safety lock notification method according to the present invention in order to achieve the above object, the step of detecting whether the gas valve opening and closing; Detecting whether a gas flows in a gas pipe equipped with the gas valve; And outputting a warning message when the gas valve is opened and it is detected that the state in which the gas flow in the gas pipe is stopped continues for a predetermined time (td).

The method may further include automatically closing the gas valve after outputting the warning message.

According to the present invention, it is possible to prevent the gas safety accident in advance to prevent the noble property and human damage.

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

1a and 1b is a schematic outline and circuit diagram of the gas valve safety lock notification device according to the present invention.

The configuration of the gas valve safety lock notification device according to the present invention will be described with reference to FIGS. 1A and 1B as follows.

This is the valve opening and closing detection unit 100 for detecting the opening and closing of the intermediate valve of the gas pipe 160, that is, the gas valve 102 largely connected to the gas range, etc., and in the gas pipe 160 provided with the gas valve 102. The gas valve 102 is opened in a specific situation by the gas flow detector 110 detecting the gas flow and the detection result of the valve open / close detector 100 and the gas flow detector 110. When the state in which the gas flow in the gas pipe 160 stops for a predetermined time (td) is composed of a warning message output unit 120 for outputting a warning message by voice synthesis.

By such a configuration, the user may prevent the risk of gas leakage by not closing the gas valve 102, which is an intermediate valve, after use such as a gas range.

Here, the valve opening and closing detection unit 100 is a magnet piece 104 attached to a predetermined region of the gas valve handle 103 as shown, and a reed switch that is operated by the magnetic force of the magnet piece 104 ( 106).

The reed switch 106 is a magnetic sensor, one of the magnetic sensors, in which a remodeled lead plate is enclosed in a glass tube or the like with an inert gas, and a series of switching actions are performed by the strength of magnetic energy applied to the outside, that is, the magnetic energy of the magnet piece. Will be.

In the present invention, in order to operate the contacts of the switches in a state in which the contacts of the switches are cut off from the outside air in consideration of safety, even if there is a leaked gas, if the contacts of the switches are in contact with the gas accident due to electrical sparks Prevented.

Accordingly, the reed switch 106 is operated by the movement of the gas valve knob 103, which is when the gas valve knob 103 is vertical, that is, when the gas valve 102 is opened. (103) The distance between the magnet piece 104 located at the lower end portion and the reed switch 106 is close, so that magnetic energy is strongly received, and the reed switch 106 is operated ON.

On the contrary, when the gas valve handle 103 is horizontal, that is, when the gas valve 102 is closed, the distance between the magnet piece 104 positioned at the lower end of the gas valve handle 103 and the reed switch 106 is far. In this case, the reed switch 106 is operated in the OFF state due to weak magnetic energy.

In addition, the gas flow detection unit 110 is a magnet piece whose position is changed by the gas flow in the gas pipe 160, and a reed switch formed on the outer wall of the gas pipe 160 and operated by the magnetic force of the magnet piece ( 118).

Here, the magnet piece formed in the gas pipe is a magnetic ball 116 moving by the flow of gas, and the spring connected to the magnetic ball 116 to return the magnetic ball 116 to the first position when the gas flow is stopped ( 114 and a ring guide 112 for fixing the spring in the gas pipe.

The reed switch 118 in the gas flow detection unit 110 is operated in the same manner as the operation principle of the reed switch described above, and when the gas flows in the gas pipe, the magnetic ball 116 is a gas flow. The position is changed from the initial position to the direction opposite to the direction in which the pressure is applied by the pressure, and thus the reed switch 118 is separated from the magnet piece, that is, the magnetic ball 116, thereby causing the magnet of the magnet piece. It is operated by OFF due to small influence of energy.

On the contrary, when the gas stops in the gas pipe, the magnetic ball 116 is returned to its original position by the tension force of the spring 114. Accordingly, the reed switch 118 is the magnet piece, that is, the magnetic ball ( The distance to 116 is close, and the magnet is operated under a large influence of the magnetic energy of the magnet piece.

In this case, when the gas flow is stopped in the gas pipe 160, the use of the gas range connected to the gas pipe 160 is completed while the gas valve 102 is open, and thus the cock of the gas range is closed.

That is, if the intermediate valve of the gas pipe connected to the gas range, that is, the gas valve 102 is opened for a predetermined time td after the use of the gas range or the like, the user forgets to lock the gas valve 102. It can be used as a criterion of judgment.

In this way, the power supply of the power supply unit 150 is entirely supplied from the time when each of the reed switches 106 and 118 formed in the valve open / close detection unit 100 and the gas flow detection unit 110 is turned ON. At the same time as the standby state that can be supplied to the electronic device, the power supply trigger 140 is activated to supply power to the warning message output unit 120.

In this case, as the power source, it is possible to use a primary battery, not a commercial power source, to facilitate installation, and to operate at a low voltage (about 3V).

The warning message output unit 120 may include a delay time timer 122 for setting a predetermined delay time td to be a reference for determining that the user forgets to lock the gas valve after using the gas, and the delay time. (td) a voice synthesis integrated circuit (IC) 126 for generating a warning message after elapsed time, and a holding time timer 124 for setting a predetermined time ta for allowing the warning message to be output for a predetermined time. It is configured to include.

Here, the delay time timer 122 sets the delay time td in consideration of the frequent operation of the gas valve. That is, even if the gas valve is opened and the gas flow is stopped inside the gas pipe, if the user frequently operates the gas range, it is difficult to say that there is a risk of gas leakage. To print

As such, when the delay time td set by the delay time timer 122 elapses, the maintenance time timer 124 operates to output a warning message for informing a safety lock of the gas valve for a predetermined time ta. At the same time, close the gas valve through the voice synthesis integrated circuit (IC) 126. The voice output of the warning message is output to the speaker 129 via the amplifier 128, the LED lamp 127 is also linked to the holding time timer 124 to visually inform the operation of the holding time (ta) Lights up during the

In addition, an apparatus including a solenoid or a motor for automatically closing the gas valve 102 after outputting the warning message for a predetermined time ta from the warning message output unit 120 is further included. It is provided.

At this time, the electromagnet generates magnetic force when electric power is applied, and the core pin of the electromagnet moves in a linear motion. When the center pin is used as a lock release pin, the electromagnet releases the lock during operation. do.

In addition, when the motor also forms a pin or a protrusion serving as a locking release pin on the gear (Gear) attached to the central axis of the motor, when the power is supplied to the motor, the central axis of the motor is rotated at this time. The lock releases the lock pin.

In addition, the valve opening and closing detection unit 100, the gas flow detection unit 110, the warning message output unit 120, the forced shut-off switch 130 that can be arbitrarily cut off the power of the power supply for supplying power When the user operates the forced cutoff switch 130 even while the notification device is operated by the power being applied thereto, the output of the warning message may be stopped.

When the warning message is displayed, the user who forgets to lock the gas valve at this time and does something else can close the gas valve knowing that the gas valve is open.

2 is an exploded view of the main frame of the gas pipe of the gas valve safety lock notification device according to the present invention.

However, this is only one embodiment of the gas pipe of the gas valve safety lock notification device according to the present invention.

Referring to FIG. 2, the internal structure of the gas pipe includes a magnetic ball 116 for detecting the flow of gas, a spring 114 connected to the magnetic ball 116, and a predetermined portion inside the gas pipe 200. The ring guide 112 for supporting the magnetic ball 116 / spring 114 is installed, the coupling 202 to the gas pipe 200 connected to the gas pipe is configured to install the main frame 210 ), The coupling 220 is connected to the main frame 210 and the hose assembly 230 to connect the magnetic ball 116, the spring 114, and the ring guide 112 with the main frame 210. Insert between).

The guide net 222 serves as a filter to prevent the flow of the gas is blocked by the magnetic ball 116 is separated from the spring to the hose assembly 230.

3 is a schematic external view of a gas valve safety lock notification device according to another embodiment of the present invention.

This is to prevent the magnetic ball and the reed switch from operating properly when the pressure of the gas, such as LPG and LNG, is weak, so that the movement of the spring is weak.

Referring to FIG. 3, the valve open / close detection unit 100 that detects whether the gas valve 102 installed outside the gas pipe 160 is provided in the same manner as illustrated in FIG. 1A.

That is, the valve opening / closing detection unit 100 includes a magnet piece 104 attached to a predetermined region of the gas valve handle 103 and a reed switch operated by the magnetic force of the magnet piece 104 as shown. 106).

However, the gas pipe at the bottom of the valve opening and closing detection unit 100 is bent in a 'U' shape, unlike the one shown in FIG. 1A, and the gas pipe 160 ′ bent upwardly detects the gas flow inside the gas pipe. The part 110 'is provided. At this time, the 'U' shaped gas pipe 160 'equipped with the gas flow detector 110' is provided with a coupling 202 and a hose assembly 230 at the start and the end thereof, respectively. It is coupled with the gas pipe connected to the provided gas pipe and the gas range, respectively.

However, unlike the gas flow detecting unit 110 shown in FIG. 1A, the gas flow detecting unit 110 ′ does not include a spring (114 in FIG. 1A) and a ring guide (112 in FIG. 1A) and does not have a magnetic ball. 116 ', a reed switch 118' provided on the outer wall of the gas pipe operated by the magnetic force of the magnetic ball 116 ', and a first and second limit for determining the fluctuating position of the magnetic ball 116'. Two-guide nets 222 ', 222 ".

That is, when no gas is introduced, the magnetic ball 116 ′ is in contact with the first guide net 222 ′ installed at the lower end, and when the gas is introduced, the magnetic ball 116 ′ is caused by the pressure of the gas. ) Is moved in a direction opposite to the direction in which the gas flows, the movement of the magnetic ball 116 ′ is limited by the second guide net 222 ″ installed at the upper end.

Here, the magnetic ball 116 ′ has a considerably lighter mass than the magnetic ball 116 described in FIG. 1A, and also has a diameter of the gas pipe 160 ′ provided with the second guide net 222 ″. Is designed to be somewhat larger than the diameter of the gas pipe with the first guide net 222 ′.

The reed switch 118 ′ in the gas flow detecting unit 110 ′ operates in the same manner as the operation principle of the reed switch described above. When the gas flows in the gas pipe, the magnetic ball 116 ′ The position of the reed switch 118 'is moved away from the magnetic ball 116' by the flow pressure of the gas in a direction opposite to the direction in which the pressure is applied from the initial position. In other words, the magnetic energy of the magnetic ball is affected by the magnetic energy to be turned off.

On the contrary, when the gas stops in the gas pipe, the magnetic ball 116 'is returned to its initial position by gravity, and thus the reed switch 118' is connected to the magnet piece, that is, the magnetic ball 116 '. The distance is close to operate on (ON) greatly affected by the magnetic energy of the magnet piece.

4 is a timing chart for explaining the operation of the gas valve safety lock notification device according to the present invention.

Referring to Figures 1a, 1b and 4 will be described the operation of the gas valve safety lock notification device according to the present invention. However, the operation of the gas valve safety lock notification device shown in FIG. 3 is also the same as the following description.

When the gas valve 102 is closed, that is, when the knob 103 of the gas valve is horizontal, the reed switch 106 of the valve opening / closing detection unit 100 is turned OFF to turn off the power supply 130. No power supply by This turns off all internal electronics.

Accordingly, when the knob 103 of the gas valve is vertical and the gas valve 102 is opened, the reed switch 106 of the valve opening / closing detection unit 100 is turned on. (T1)

In addition, when the gas range connected to the gas pipe 160 is not used after the gas valve 102 is opened, since the gas does not flow inside the gas pipe 160, the reed switch 118 of the gas flow detector 110 may be used. Is turned ON.

Accordingly, since each of the reed switches 106 and 118 is ON, the power source operates the delay time timer 122 via the power supply trigger 140.

In this case, when the user uses the gas range before the delay time td elapses, the gas flows out through the gas range so that the gas in the gas pipe 160 flows. Accordingly, the gas flow detection unit 110. ), The reed switch 118 is turned OFF, and the power is cut off again. (T2)

Thereafter, when the user closes the cock of the gas range after the use of the gas range, the reed switch 118 of the gas flow detection unit 110 is turned on again (T3) and the power is again supplied to the delay time timer 122. Is activated to operate the gas range again during the delay time td, or after the delay time td has elapsed (T4) when the gas valve is not closed (T4). And the LED 127 operates for a predetermined holding time ta set by the holding time timer 124 to inform the user to close the gas valve.

In addition, when the user does not close the gas valve in spite of the notification, the electromagnet or motor is operated after the holding time ta has elapsed (T5) to automatically close the gas valve 102.

According to the gas valve safety lock notification device and method according to the present invention as described above, in a busy daily life to notify the opening of the gas valve by a voice message about the lock of the gas valve which is easy to forget after the use of the gas range to close it By doing so, it is possible to prevent gas safety accidents in advance, thereby preventing noble property and human damage.

Claims (10)

Valve opening and closing detection unit for detecting whether the gas valve opening and closing, A gas flow detector configured to detect whether the gas flows in the gas pipe having the gas valve; A warning message output unit for outputting a warning message when the gas valve is opened and it is determined by the detection result of the valve opening / closing detection unit and the gas flow detection unit that the state in which the gas flow in the gas pipe is stopped lasts a predetermined time (td) Gas valve safety lock notification device characterized in that it is included. The method of claim 1, The valve opening / closing detection unit includes a magnet piece attached to a predetermined region of the gas valve handle and a reed switch operated by a magnetic force of the magnet piece, wherein the reed switch is opened when the gas valve is opened by the movement of the gas valve handle. Gas valve safety lock notification device, characterized in that the operation is ON, when closed (OFF). The method of claim 1, The gas flow detector includes a magnet piece whose position is changed by a gas flow in the gas pipe, and a reed switch formed on an outer wall of the gas pipe and operated by a magnetic force of the magnet piece. The gas valve safety lock notification device is characterized in that the distance to the magnet piece is turned off when the flow is off, and when the flow of gas stops, the distance to the magnet piece is brought to be close (ON). The method of claim 3, wherein The magnet piece formed in the gas pipe includes a magnetic ball moving by the flow of gas, a spring connected to the magnetic ball to return the magnetic ball to the original position when the gas flow stops, and a ring guide for fixing the spring in the gas pipe. Gas valve safety lock, characterized in that consisting of. The method of claim 1, The gas pipe of the portion where the gas flow detection unit is installed is bent up in a 'U' shape, and the gas flow part is formed on a magnetic ball whose position is changed by the gas flow in the gas pipe, and is formed on the outer wall of the gas pipe. Gas valve safety lock device, characterized in that consisting of a reed switch operated by the magnetic force. The method of claim 1, And a device including a motor or an electromagnet which automatically closes the gas valve after outputting a warning message for a predetermined time (ta) from the warning message output unit. The method of claim 1, Gas valve safety, characterized in that further provided with a power supply for supplying power to the valve opening and closing detection unit, gas flow detection unit, warning message output unit, and forcibly cut off the power by the power supply device Lock notification device. The method of claim 1, The warning message output unit includes a delay time timer for setting the predetermined delay time td, a voice synthesis integrated circuit IC for generating a warning message after the delay time td elapses, and a predetermined output of the warning message. Gas valve safety lock notification device characterized in that it comprises a holding time timer for setting the time (ta) of. Detecting whether the gas valve is opened or closed; Detecting whether the gas flows in the gas pipe having the gas valve; And outputting a warning message when the gas valve is opened and it is detected that the gas flow in the gas pipe is stopped for a predetermined time (td). The method of claim 9, The gas valve safety lock notification method further comprises the step of automatically closing the gas valve after the warning message output.