KR20010002192U - Automatic extinguisher using electric assembly - Google Patents

Abstract

The present invention relates to an automatic fire extinguisher using a transmission that can be extinguished early in the event of a fire.

This invention is an extrusion bar including a temperature sensor and a spray nozzle; A fire extinguisher body filled with a fire extinguishing agent, and a fire extinguisher body including an injection hole; An injection device using a transmission device for discharging the extinguishing agent from the injection hole; Discharge conduits; A gas leak alarm for detecting leaked gas; A gas circuit breaker to block a gas supplied to the gas range in response to a signal of the gas leakage alarm; And a controller connected to the temperature sensor, the injector, the gas leakage alarm, and the gas circuit breaker.

The present invention prevents the injector from malfunctioning or becoming disabled by the operation of the electric device by the electrical signal of the controller transmitted when the temperature sensor senses a certain temperature, thereby effectively injecting fire and effectively performing fire extinguishing. By detecting and alarming gas leaks, there is an effect to prevent fire accidents caused by gas leaks and to perform fire extinguishing more effectively in case of fire.

Description

Automatic fire extinguisher using electric machine {AUTOMATIC EXTINGUISHER USING ELECTRIC ASSEMBLY}

The present invention relates to an automatic fire extinguisher that can be extinguished early in the event of a fire. More specifically, the fire extinguisher injection device is constructed by using an electric device driven by an electrical signal such as a gear wheel device or a solenoid valve. The present invention relates to an automatic extinguisher using an electric apparatus.

At present, the fire law mandates that mandatory automatic fire extinguishers be installed in fire-fighting areas, such as kitchens in high-rise apartments or kitchens in business offices.

This mandates the installation of an automatic fire extinguisher in the upper part of a gas range or in a range hood when using a gas stove with a high risk of fire in a kitchen such as a home or a restaurant.

In general, an automatic fire extinguisher of such a kitchen has a structure in which an extrusion bar formed on a range hood of an upper portion of a gas range and a fire extinguisher body formed in a space of one side are interconnected through a pipe.

1 is a configuration diagram showing a conventional gas stove automatic fire extinguisher 100, with reference to this configuration of the conventional automatic fire extinguisher 100 as follows.

The conventional automatic fire extinguisher 100 basically includes an extrusion bar 10 and a fire extinguisher body 30.

The extrusion bar 10 formed in the range hood 12 may include a temperature sensor 20 such as a fuse link, an injection nozzle 14, and an emission conduit 54 having one end connected to the injection nozzle 14. Include some.

The fire extinguisher body 30 formed in the storage rack 32 includes a fire extinguisher body 36 filled with a fire extinguishing agent and an injection device 40 formed on an upper surface of the fire extinguisher body 36, and the fire extinguisher body 36 Is fixed to a pedestal 34 formed at one point of the storage table 32.

In addition, between the fire extinguisher body 36 and the injector 40 is formed an injection port 50 for the extinguishing agent is injected, the injection port 50 is connected to the other end of the discharge conduit 54.

Conventional injector 40 includes a handle 46 for opening the injection hole 50 and the tension adjusting portion 44 formed at one point of the pedestal 32, the handle 46 and the tension adjusting portion 44 The spring 42 extended in between is elastically connected.

In addition, the handle 46 is tightly connected to the temperature sensor 20 of the extrusion bar 10 by the wire 52, the elasticity of the spring 42 and the tension of the wire 52 is balanced with each other.

A wire interruption part 60 is formed at one point of the wire 52 connecting the temperature sensor 20 and the injector 40, and the wire interruption part 60 is a male-male coupling that can release the tension of the wire. Manual handle 68 for manually adjusting the solenoid valve 66 and the male and female coupling members 62 and 64 that can adjust the binding of the members 62 and 64 and the female and male coupling members 62 and 64. It includes.

In addition, a smoke detector 70 is formed at one point of the range hood 12, and the smoke detector 70 is electrically connected to the solenoid valve 66 of the wire control unit 60.

Referring to the operation of the conventional automatic fire extinguisher configured as described above, when the gas range is ignited and a fire occurs, the flame or smoke at this time is first delivered to the range hood installed above, and at the same time the fuse link formed inside the range hood. It is delivered to the same temperature detector and smoke detector.

The fuse link overheated by the flame is separated into two copper plates, and the handle of the fire extinguisher body is pulled down by the spring elasticity while the tension applied to the wire is released in response to the spring elasticity.

Therefore, the extinguishing agent in the fire extinguisher main body may be injected into the gas range through the injection nozzle of the extrusion bar while flowing along the discharge conduit to extinguish the fire.

In addition, referring to the operation process of the wire intermitter that can release the tension of the wire based on the signal input from the smoke detector formed in the range hood, after the smoke detector detects the smoke in the fire of the gas range, the detected signal is It is transmitted to the solenoid valve of the wire intermittent part, and the binding state between the male and female coupling members is cut off according to the operation of the solenoid valve, and the tension applied to the wire is released thereby, through the injection nozzle as in the case of the fuse link described above. Extinguishing agents may be sprayed.

The action of releasing the tension of the wire by the fuse link and the wire interruption unit may be performed separately or simultaneously, regardless of the order, and the flame or smoke caused by the fire may be first detected by the fuse link or the smoke detector. Preferentially the tension of the wire can be released.

In addition, the solenoid valve of the wire interruption part is configured to be manually operated by the manual knob on the upper part, so that the tension of the wire may be released by using the manual knob when the wire interruption part is not acted upon due to a power failure or an interruption.

The conventional automatic fire extinguisher as described above may exhibit the following disadvantages in actual operation.

Since the spray device of the fire extinguisher uses only the elasticity of the expanded spring, if the spring loses its elasticity after a long time after installation, the fire extinguishing agent will not be sprayed because it will not work even if the tension of the wire is released. Will not evolve.

In addition, there is a disadvantage in the firefighting operation because it is not possible to directly respond to the gas leakage accident and can not block the gas in the event of a fire.

The present invention has been made to solve the above problems of the prior art, the purpose of the fire extinguishing effectively by the injection device for injecting a fire extinguishing agent appropriately in accordance with the signal of the temperature sensor.

In addition, the present invention is intended to detect and alert to gas leaks, to prevent accidents caused by gas leaks, as well as to make fire extinguishing more effective in a fire.

An object of this invention includes a temperature sensor and a spray nozzle, the extrusion bar is formed in the range hood of the gas range; A fire extinguisher body filled with a fire extinguishing agent and an injection hole formed in the fire extinguisher body and having a primer; An injection device for discharging the extinguishing agent from the injection hole; A discharge conduit connecting the injection hole and the injection nozzle; A gas leakage alarm formed around the gas range and detecting a leaked gas; A gas circuit breaker formed at one point of a gas supply pipe connected to the gas range, and configured to block a gas supplied to the gas range by receiving a signal of the gas leakage alarm; And a controller connected to the temperature sensor, the injector, the gas leak alarm and the gas breaker.

1 is a configuration diagram showing a conventional automatic fire extinguisher,

2 is a block diagram showing an automatic fire extinguisher according to an embodiment of the present invention,

3 is a perspective view showing a portion A of FIG. 2 in detail;

4A is a bottom perspective view illustrating the cam of FIG. 3;

4B is a front view showing the cam of FIG. 4A,

5a to 5c is a variety of gear device according to the present invention

Perspective view showing examples,

6 is a configuration diagram showing an example of a cam according to the present invention,

7 is a circuit diagram showing an example of a controller according to the present invention;

8 is a block diagram showing an automatic fire extinguisher according to another embodiment of the present invention,

9 is a perspective view showing in detail the portion B of FIG.

10 is a perspective view showing an automatic fire extinguisher according to another embodiment of the present invention.

<Description of Main Parts of Drawing>

10, 110, 210, 310: extrusion bar 12, 312: range hood

14, 114, 214, 314: injection nozzle 20, 120, 220: temperature sensor

30, 130, 230, 330: fire extinguisher body 36, 136, 236: fire extinguisher body

40, 140, 240, 340: Injector 42: Spring

44: tension control unit 46: the handle

50, 150, 250, 350: nozzle 52: wire

54, 154, 254, 354: discharge conduit 60: wire interruption

66, 270: solenoid valve 68: manual knob

70: smoke detector 100, 200, 300, 400: automatic fire extinguisher

101: slide switch 105: limit switch

142, 242: fixed plate 152, 252: primer

160, 260, 360: Controller 170: Motor

172, 272: electric wire 174: power shaft

180: gear device 190: cam

192: fastening portion 194: contact portion

196: guard 198: rotating body

274 coil 276 piston

278: valve body 370: gas leakage alarm

380: gas breaker 382: gas pipe

390: gas range

Hereinafter, embodiments for achieving the above object of the present invention will be described with reference to the drawings.

2 is a configuration diagram briefly showing the automatic fire extinguisher 200 according to an embodiment of the present invention, the basic configuration of the automatic fire extinguisher 200 according to the present invention with reference to the following.

The automatic fire extinguisher 200 according to the present invention basically includes an extrusion bar 110 and a fire extinguisher body 130.

Extrusion bar 110 is formed in the range hood, etc. of the discharge conduit 154 having one end connected to the temperature sensor 120 and the injection nozzle 114 and the injection nozzle 114 is directly injected to the fire extinguishing agent at a predetermined temperature Include some.

The fire extinguisher body 130 formed in the receiving table 132 includes a fire extinguisher body 136 filled with a fire extinguishing agent and an injection hole 150 formed in the fire extinguisher body 136 and having a primer 152. The injection device 140 is formed on the fixed plate 142 on the 130.

The injection hole 150 is connected to the other end of the discharge conduit 154 connected to the injection nozzle 114, and a controller 160 is formed between the temperature sensor 120 and the injection device 140.

Injection device 140 according to an embodiment of the present invention is an electric device for opening the injection hole 150 by pressing the primer 152 by the electrical signal of the controller 160, more specifically to the controller 160 And a gearwheel device 180 and a cam 190 driven by the motor 170 and the motor 170 driven by the motor 170.

In addition, Figure 3 is a perspective view showing a portion A of Figure 2 in detail, Figure 4a is a bottom perspective view of the cam 190 of Figure 3 centered on the bottom, Figure 4b is a front view showing the cam 190 of Figure 4a, Referring to Figures 3 to 4b will be described in more detail the structure and operation principle of the electric drive as follows.

The motor 170 having the power shaft 174 is connected to the controller via a wire 172, the gear unit 180 is a plurality of support shafts 184 and parallel to each other, the support shaft 184 and A plurality of pairs of cogs formed on the power shaft 174, the plurality of support shafts 184 and the rotation shaft 182 and correspondingly engaged with each other; (186).

The cam 190 is fastened to the rotation shaft 182, and is configured to press the primer 152 in contact with the opposite side in accordance with the rotation of the rotation shaft 182.

In more detail with respect to the cam 190 in contact with the actual primer 152, the cam 190 is the inclined circular contact portion 194 and the end of the rotating shaft 182 in contact with the primer 152 It includes a circular rotating body 198 is formed a fastening portion 192 is inserted, wherein the inclined shape is formed with a deviation (C) in the longitudinal direction of the rotating body.

That is, the contact portion 194 is formed in contact with the primer 152 along the circumference of the lower portion of the rotating body 198 and the deviation (C) is a specific range that the primer 152 is pressed on the surface of the injection hole 150 It is formed greater than or equal to the length.

A guard 196 surrounding the contact portion 194 along the outer side of the contact portion 194 is formed on the rotating body 198.

The guard 196 surrounds the contact portion of the contact portion 194 and the primer 152 and protects the primer 152 from an impact from the outside to prevent the fire extinguisher from operating incorrectly.

The operation of the electric device configured as described above is as follows.

In the event of a fire, the controller, driven by the temperature sensor, drives the motor, which causes the motor's power shaft to rotate.

The rotational motion of the power shaft is transmitted to the cam through a plurality of pairs of cog wheels, the support shaft and the rotational axis, wherein the magnitude of the motion transmitted by the arrangement of the gears can be adjusted.

In addition, the cam converts the rotational motion of the rotational axis into linear motion to press the primer and is fixed at an arbitrary point.

In other words, if the rotating body of the cam is rotated more than one rotation, the force to press the primer is also decremented accordingly, so that the force applied to the primer is maximized because it is less than the necessity of continuously spraying the extinguishing agent until the fire is extinguished. It is preferred to be configured to stop the rotation at any point-for example when the nozzle is fully open.

As described above, the movement of the cam pressing the primer should be stopped at an arbitrary point in order to efficiently spray the extinguishing agent, and the method of stopping the movement of the cam is a means of stopping the driving of the motor or directly stopping the movement of the cam. There may be a case where, and look at the specific apparatus and methods required to stop the motor as follows.

First, there is a method of including a timer (not shown) in the controller for driving the motor. Since the arbitrary time from when the motor is driven until the injection port is completely opened through the rotation of the cam includes a preset timer, the controller receiving the signal of the temperature sensor drives the motor only for a predetermined predetermined time.

At this time, there may be a difference depending on the specifications of the fire extinguisher, but may include a timer set to about 6-7 seconds.

Next, there is a method of installing a slide switch which is contacted / disconnected at any point on one axis of the gear device that rotates as the motor is driven.

The slide switch is connected to the controller and is configured to stop the motor by operating the controller when one axis of the gear device rotates to contact / disengage.

Such a switch may be formed in various forms, and FIGS. 5A to 5C briefly illustrate various examples of a gear device including a slide switch.

The slide switch 101 has a lower contact terminal 104 as the lower contact terminal 104 and the gear wheel 184 rotate, which protrudes from the bottom of an arbitrary gear 184 to connect the contacts 102. Contacts 102 that can be contacted / disconnected by

Such contacts 102 are generally formed on a structure such as a printed circuit board (PCB) at the bottom of the gear device, and according to the relative positions of the contacts formed along the radius of rotation of the lower contact terminal 104. The contact / disconnect signal is configured to be sent to the controller through a wire 103 connected to the controller.

In more detail, the slide switch of FIG. 5A transmits a signal to the controller by contacting when the first contact points are rotated when the lower contact terminal rotates, and the slide switch of FIG. 5B is connected to the first contact point. When the bottom contact terminal rotates, it is disconnected to transmit a signal to the controller.

Also, unlike FIG. 5A and FIG. 5B, FIG. 5C illustrates a case in which the slide switch 101 itself is formed in a path through which power is supplied to the motor 170. In this case, FIG. 5B after driving the motor 170 in the controller. As described above, the first contact 102 is disconnected when the lower contact terminal 104 rotates, and at the same time, the power supplied to the motor 170 is cut off to stop the motor.

6 is a plan view briefly showing a cam including a limit switch according to the present invention, which will be described with reference to this, the limit switch 105 may be any rotary body in the transmission, for example a rotating body of the cam 190. A horizontal contact terminal 106, such as a press cam projecting horizontally from the horizontal contact terminal 106, and a pin 108 (NC, NO Connector pin) which can be pressed at a predetermined position as it rotates.

In more detail, by setting the position of the pin 108 to be contacted when the push cam of the limit switch 105 rotates to correspond to when the injection port is fully opened, the wire 107 connected to the controller when the switch occurs. The motor can be stopped by transmitting a signal to the controller.

In addition, the primer is projected onto the surface of the injection hole by the spring of the spring formed in the injection hole and the gas pressure in the body of the fire extinguisher, it is configured to be pressed by a certain length by the pressure of the cam, the primer is at most about 5 mm It is preferably configured to open the jet when pressed.

Therefore, the deviation of the contact portion of the cam has a size of at least 5 mm or more, and when the point of the contact portion that makes the maximum deviation from the fastening portion contacts the primer, the primer can be pressed to the maximum, and the cam in the maximum pressed state. It is preferable that it is formed to stop forcibly.

When the cam movement, that is, the rotation of the motor is forcibly stopped by using a fastening part having a deviation as described above, the power supplied to the motor is continuously supplied, thus overloading the motor. By forming a detectable circuit, damage to the motor must be prevented.

As such, an example of a controller including a circuit capable of detecting an overload state of a motor is shown in FIG. 7. A method of detecting an overload will now be described with reference to FIG. 7.

The first transistor Q1, which receives the driving signal from the controller 160 and drives the motor 170, is connected to the second transistor Q2, and the second transistor Q2 is connected to the first transistor Q1. The controller receives the magnitude of the current output from the controller and sends a corresponding signal indicating the overload state of the motor to the controller 160.

That is, since the second transistor is not operated before or when the first transistor is operated or the motor is normally driven, a high value of about 5V is transmitted to the controller, and the first transistor is operated to drive the motor. When the motor is stopped due to this forced stop, the motor is overloaded and the magnitude of the output current is increased. At this time, the second transistor is operated to transmit a low value of about 0V to the controller.

When a low value is passed to the controller, the controller can stop the motor by not sending a drive signal to the first transistor and protect the motor from damage due to overload.

On the other hand, Figure 8 is a schematic diagram showing an automatic fire extinguisher 300 according to another embodiment of the present invention, with reference to the basic configuration of the automatic fire extinguisher 300 as follows.

The automatic fire extinguisher 300 according to the present invention basically includes an extrusion bar 210 and a fire extinguisher body 230.

Extrusion bar 210 is formed in the range hood, etc. of the discharge conduit 254, one end of which is connected to the injection nozzle 214 and the injection nozzle 214, the temperature sensor 220 and the fire extinguishing agent is directly injected at a predetermined temperature Include some.

The fire extinguisher body 230 formed in the receiving table 232 includes a fire extinguisher body 236 filled with a fire extinguishing agent and an injection hole 250 formed in the fire extinguisher body 236 and having a primer 252. The injection device 240 is formed on the fixed plate 242 on the 230.

The injection port 250 is connected to the other end of the discharge conduit 254 connected to the injection nozzle 214, and a controller 260 is formed between the temperature sensor 220 and the injection device 240.

Injection device 240 according to another embodiment of the present invention is an electric device for opening the injection port 250 by pressing the primer 252 by the electrical signal of the controller 260, more specifically to the controller 260 And a solenoid valve 270 actuated by it.

In addition, Figure 9 is a perspective view showing in detail a portion B of Figure 8 in detail, with reference to this the structure and operation of the solenoid valve in more detail as follows.

Looking at the configuration of the solenoid valve, the power line 272 connected to the controller is connected to the coil (274), the piston 276 is formed inside the coil 274, the piston 276 and the coil 274 Is surrounded by the valve body 278.

At this time, the piston 276 is engaged with the primer 252, one end of which protrudes over the surface of the injection hole (250).

The principle of operating the electric device according to the above configuration is as follows.

In the event of a fire, the controller receiving the signal from the temperature sensor supplies power to the coil to form a magnetic field. As the magnetic field of the coil changes, the piston inside the coil moves in a linear motion.

The linear movement of the piston pushes the primer and opens the jet.

As described above, the primer protrudes above the surface of the injection hole by the elasticity of the spring formed in the injection hole and the gas pressure in the fire extinguisher body, and is configured to be pressed by a certain length by the pressure of the piston.

At this time, the primer is preferably configured to open the injection hole when pressed up to about 5mm maximum.

Therefore, the linear motion of the piston should have a range of at least 5 mm or more, and it is desirable to be adjusted so that the primer can be pressed to the maximum when the piston is moved to the injection hole direction at the maximum.

In addition, Figure 10 is a perspective view showing the configuration of an automatic fire extinguisher 400 including a gas leak alarm 370 and the gas blocker 380 as another embodiment of the present invention.

Referring to the automatic fire extinguisher 400 with reference to FIG. 10, the automatic fire extinguisher 400 basically includes an extrusion bar 310 and a fire extinguisher body 330.

The extrusion bar 310 is formed in the range hood 312 on the gas range 390, and includes a temperature sensor (not shown) and an injection nozzle 314 for outputting an electrical signal in response to a predetermined temperature.

The temperature sensor is connected to the controller 360, the injection nozzle 314 is connected to the injection port 350 of the fire extinguishing body 330 through the discharge conduit 354.

The fire extinguisher body 330 includes a fire extinguisher body 336 filled with a fire extinguishing agent, an injection hole 350 formed on the fire extinguisher body 336, and an injection device 340 formed on the injection hole 350.

The injection device 340 is connected to the controller 360, and consists of a transmission device operated by the controller 360.

In addition, the automatic fire extinguisher 400 includes a gas leak alarm 370 formed around the gas range 390 and a gas breaker 380 formed at one point of the gas supply pipe 382 connected to the gas range 390.

The gas leak alarm 370 detects the gas leaked from the gas range 390 and the gas supply pipe 382, and outputs a voice signal, an alarm sound and a lighting signal when the gas is detected, and outputs the gas leak signal to the controller 360. Can be delivered to.

The gas circuit breaker 380 may block the gas supplied to the gas range 390 by the controller 360 which receives an electrical signal such as the gas leakage alarm 370.

Gas leak alarms can detect liquefied natural gas (LNG) and liquefied petroleum gas (LPG) and liquefied petroleum gas (LPG). If the volume ratio of about 0.06 ~ 1.25% of gas leak alarm detects this alarm and the volume ratio of LPG leaked in the air is about 0.06 ~ 0.45%, the gas leakage alarm detects it and alerts.

Since the main component of LNG is methane (CH4) which is lighter than air, LNG rises from the leak point to the top when it leaks, and the LPG is propane (C3H8; Propane) that is heavier than air, so LPG is leaked. It is characterized by sinking at leaked points.

Therefore, the gas leak alarm should be installed above the gas range for LNG and below the gas range for LPG.

Referring to the operation of the automatic fire extinguisher having the above configuration is as follows.

When a fire occurs due to the gas range being ignited, the flame and heat at this time are first transmitted to the range hood installed at the top, and at the same time to the temperature sensor formed inside the range hood, and the electrical signal of the temperature sensor is transmitted to the controller.

The controller operates the injector formed on the extinguishing body to open the injector, and the extinguishing agent in the extinguisher main body may flow along the pipe to spray the gas range through the injection nozzle of the extrusion bar to extinguish the fire.

In addition, by detecting the gas leakage by the gas leakage alarm to cut off the gas supply, it is possible to more effectively fire extinguishing and to prevent accidents caused by the gas leakage.

As described above, the automatic fire extinguisher according to the present invention is configured by the injection device using an electric device such as a gear wheel device or a solenoid valve, so that the conventional mechanical injection device, which is configured by using a spring, has been used for a long time. By losing the elasticity of the fire extinguisher, it is possible to prevent the injector of the fire extinguisher.

In addition, since the electric device is operated by the electrical signal of the controller and presses the primer protruding on the surface of the injection hole, it is possible to prevent the extinguishing agent from being released by mechanical malfunctions such as cutting the wire or losing the spring elasticity. It can be used to prevent physical corrosion or aging even after a long time, so that fire extinguishing is performed reliably and consistently according to the signal of the temperature sensor.

In addition, by detecting and alerting the gas leak, it is possible to prevent the accident due to the gas leakage in advance, as well as to be more effective in extinguishing the fire by blocking the gas in case of fire.

Claims (1)

An extrusion bar including a temperature sensor and a spray nozzle, the extrusion bar being formed in a range hood of a gas range; A fire extinguisher body filled with a fire extinguishing agent and an injection hole formed in the fire extinguisher body and having a primer; An injection device for discharging the extinguishing agent from the injection hole; A discharge conduit connecting the injection hole and the injection nozzle; A gas leakage alarm formed around the gas range and detecting a leaked gas; A gas circuit breaker formed at one point of a gas supply pipe connected to the gas range, and configured to block a gas supplied to the gas range by receiving a signal of the gas leakage alarm; And A controller connected to the temperature sensor, the injector, the gas leak alarm and the gas breaker; Includes, The injector is an electric device that can extinguish the fire of the gas range by operating the electrical signal of the controller transmitted when the temperature sensor detects a constant temperature to open the injection port Automatic fire extinguisher using electric gear for gas range.