WO2021101025A1

WO2021101025A1 - Fire-extinguishing agent supply device of automatic fire-extinguishing system

Info

Publication number: WO2021101025A1
Application number: PCT/KR2020/011348
Authority: WO
Inventors: 김종석
Original assignee: 김종석
Priority date: 2019-11-18
Filing date: 2020-08-25
Publication date: 2021-05-27
Also published as: KR102140406B1

Abstract

The present invention relates to a fire-extinguishing agent supply device of an automatic fire-extinguishing system, the device being separately provided with a fire extinguisher filled with a fire-extinguishing agent and a nitrogen gas storage container provided to supply nitrogen gas to the fire extinguisher side, wherein an opening means is configured to be driven in response to electronic control to open the nitrogen gas storage container, thereby preventing malfunctions over time as compared to a mechanical method, and since the fire extinguisher and the nitrogen gas storage container are separately configured, a large amount of a fire-extinguishing agent can be stored in the fire extinguisher.

Description

Fire extinguishing agent supply device of automatic fire extinguishing system

The present invention relates to a fire extinguishing agent supply device of an automatic fire extinguishing system, and more specifically, a temperature sensed by at least one of a plurality of temperature sensors installed inside a hood and a duct, which is an exhaust structure installed on the top of a cooking appliance. In an automatic fire extinguishing device configured to inject the extinguishing agent stored in the fire extinguisher through an injection nozzle by exceeding the reference temperature set in the control unit, the nitrogen gas storage box installed to supply nitrogen gas to the fire extinguisher is handled by electronic control. By configuring the opening means to be driven and opened, it is possible to prevent malfunction over time compared to the mechanical method, and because the fire extinguisher and the nitrogen gas storage container are separately configured, a large amount of fire extinguishing agent is stored in the fire extinguisher. It relates to a fire extinguishing agent supply device of an automatic fire extinguishing system that can be used.

Under the current law, it is mandatory to install sprinklers, fire extinguishing equipment and automatic diffusion fire extinguishing equipment in kitchens of restaurants, multi-use businesses, hotels, and dormitories.

However, in many cases of actual kitchen fires, the oil stain accumulated in the exhaust duct installed on the top of the countertop becomes a medium for spreading or ignition of the fire, so it is not enough to extinguish the fire in the duct with a sprinkler or automatic diffusion extinguishing tool. .

Accordingly, there is a trend of developing a fire suppression device that monitors the fire of the hood and duct and suppresses the fire by automatically injecting an extinguishing agent in the event of a fire.

For example, a fire suppression device includes a damper capable of opening and closing a duct, a plurality of temperature sensors mounted on the hood, a spray nozzle installed on the hood and duct, an extinguishing agent supply part filled with extinguishing agent, and the extinguishing agent. Detection of a connection pipe branched from the drug supply unit and connected to the injection nozzle, a plurality of on-off valves respectively opening and closing the branched connection pipes corresponding to a plurality of temperature sensing sensors, and one of a plurality of temperature sensing sensors When the temperature is equal to or higher than the first preset temperature, a control unit for controlling the corresponding on/off valve to be opened is included.

In the above-described conventional fire suppression device, the temperature sensing sensors are disposed apart from each other, and the injection nozzles mounted on the hood are provided in a number corresponding to the temperature sensing sensor, and the connecting pipe is connected to or branched to any one of the injection nozzles for injection. It is connected to the nozzle, and a extinguishing agent valve is arranged between the connection pipe and the extinguishing agent supply part, and the control unit sets the sensing temperature of any one of the plurality of temperature sensing sensors to a preset second set temperature (the second set temperature < When the temperature is higher than the first set temperature), control is performed to cut off the electricity supply and cut off the gas supply of the corresponding cookware, and to close the duct through the damper.

However, in a typical fire suppression device, a malfunction often occurs in which a fire extinguishing agent is injected even though a fire does not actually occur.

For example, if there is a malfunction of the opening/closing valve or the extinguishing agent valve, or if there is an abnormality in the temperature sensor, the extinguishing agent may be injected incorrectly. The fire extinguishing agent may be sprayed by raising it to, or the user may accidentally press the manual command button for extinguishing suppression and the fire extinguishing agent may be sprayed.

If such a malfunction occurs, feedback such as maintenance such as replacement of parts or adjustment of the set temperature can be performed by analyzing the malfunction or the cause of the malfunction, but in the conventional fire suppression device, the malfunction or the cause of the malfunction. It is very difficult to analyze.

On the other hand, the above-described conventional fire suppression device prevents the occurrence of fire by taking measures to cut off gas, electricity, etc. when a second set temperature lower than the first set temperature is reached.

However, in a place where high-temperature cooking or cooking with a flame is required, the second set temperature itself has to be set high, so that the fire prevention effect is reduced.

If so, there is a need to prevent the occurrence of fire in a more fundamental way.

To this end, the applicant has applied for a patent for a commercial automatic fire extinguishing device in Patent Application No. 10-2015-0128525.

Looking at, the above-described commercial automatic fire extinguishing system includes a temperature sensor installed on the inside of a hood or duct configured above the cookware to detect the temperature, and a sensor for oil stain detection that is installed on the inside of the hood or duct to detect oil stains. And a control unit configured to block gas supply by controlling a gas circuit breaker installed in a gas supply line supplying gas to the cookware using a temperature sensed by the temperature sensor, wherein the control unit blocks the gas supply. The reference temperature (hereinafter referred to as the'second reference temperature') is variably set, but when it is determined that oil stains are applied using the oil stain detection sensor, the second reference temperature is higher than when it is determined that oil stains are not applied. By automatically changing the setting so that it is set low, it is configured to prevent the occurrence of fire in the hood or duct.

However, the conventional commercial automatic fire extinguishing system configured as described above can easily analyze whether there is a malfunction and the cause of the malfunction due to the above configurations. However, the fire extinguisher of the extinguishing agent supply unit supplying the extinguishing agent for extinguishing a fire is nitrogen There is a disadvantage in that it is not possible to store a lot of extinguishing agents in the fire extinguisher because the extinguishing agent is stored together with the extinguishing agent.

Accordingly, the present invention has been devised to solve the above-described problems, a fire extinguisher filled with a fire extinguishing agent, and a nitrogen gas storage container separately installed to supply nitrogen gas to the fire extinguisher side, and electronically control the nitrogen gas storage container By configuring the opening means so that it can be opened by correspondingly driven by the mechanical method, it is possible to prevent malfunction over time compared to the mechanical method, and because the fire extinguisher and the nitrogen gas storage container are configured separately, a large amount of fire extinguishing It is an object of the present invention to provide a fire extinguishing agent supply device of an automatic fire extinguishing system capable of storing drugs in a fire extinguisher.

A plurality of temperature sensors installed on the inside of the hood or duct configured above the cooking utensil of the present invention to achieve the above object and a plurality of spray nozzles installed at one side of the plurality of temperature sensors, and the plurality of When the temperature sensed by one or more of the temperature sensors exceeds a set reference temperature, the fire extinguishing agent supply device of the automatic fire extinguishing system including a control unit for controlling to be injected through the plurality of injection nozzles, the injection nozzle and the connection pipe A fire extinguisher connected through a fire extinguisher filled with a fire extinguishing agent, and a head part for a nitrogen gas storage container equipped with an opening/closing valve for a nitrogen gas storage container on one side of the fire extinguisher, is opened to the fire extinguisher side through a nitrogen gas supply pipe The nitrogen gas storage unit provided to supply nitrogen gas, and the nitrogen gas storage unit is fixedly installed on the head of the nitrogen gas storage unit to open the opening/closing valve for the nitrogen gas storage unit by driving corresponding to the control of the control unit. It characterized in that it comprises an opening and closing means provided to be able to.

In addition, a pressure reducer is installed and provided on the nitrogen gas supply pipe to reduce the pressure of the nitrogen gas supplied from the nitrogen gas storage unit.

As described above, according to the fire extinguishing agent supply device of the automatic fire extinguishing system according to the present invention, it is possible to prevent malfunction over time compared to the mechanical method, so that there is an effect of reliably extinguishing a fire at the beginning of the fire. In addition, since the fire extinguisher and the nitrogen gas storage container are configured separately, there is an effect that a large amount of fire extinguishing agent can be stored in the fire extinguisher.

1 is a view showing an automatic fire extinguishing system equipped with a fire extinguishing agent supply device according to the present invention.

Figure 2 is a schematic view showing a fire extinguishing agent supply device of the automatic fire extinguishing system according to the present invention.

Figure 3 is an exploded perspective view showing the opening and closing means of the fire extinguishing agent supply device of the automatic fire extinguishing system according to the present invention from the bottom.

Figure 4 is an exploded perspective view showing the opening and closing means of the fire extinguishing agent supply device of the automatic fire extinguishing system according to the present invention from the top.

5 is a combined cross-sectional view showing the opening and closing means of the fire extinguishing agent supply device of the automatic fire extinguishing system according to the present invention from the top.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in a variety of different forms, and is not limited to the embodiments described herein.

As shown, the extinguishing agent supply device of the automatic fire extinguishing system according to the present invention is installed in the nitrogen gas reservoir and is driven correspondingly by electronic control to open the nitrogen gas reservoir to extinguish the nitrogen gas stored in the nitrogen gas reservoir. It is configured to be able to supply the drug to the filled fire extinguisher, and to prevent malfunction over time.

That is, the fire extinguishing agent supply device 100 of the automatic fire extinguishing system according to the present invention described above includes a temperature sensor installed on the inside of a hood or duct configured above the cooking appliance to sense a temperature, and an inside of the hood or duct. A sensor for detecting oil stains that is installed to detect the occurrence of oil stains, and a control unit that blocks gas supply by controlling a gas circuit breaker installed in a gas supply line that supplies gas to the cooking utensils using the temperature detected by the temperature sensor. And, the control unit variably sets the reference temperature (hereinafter referred to as the ``second reference temperature'') for blocking the gas supply, but when it is determined that the oil stain has been applied using the oil stain detection sensor, the oil stain does not occur. By automatically changing the setting so that the second reference temperature is set lower than when it is determined that it is not, it is configured to prevent the occurrence of fire in the hood or duct, but the oil stain detection sensor is a hot wire that detects a heat ray generated from a heat source. It is a detection sensor, and the control unit uses the heat ray detection sensor even though the temperature sensed by the temperature sensor exceeds a set third reference temperature (the third reference temperature is a temperature lower than the second reference temperature). When the amount of the detected heating wire falls below a predetermined standard, it is determined that oil stains have been applied, and the oil stain detection sensor includes a light-transmitting element that projects a test light toward the light-transmitting window, and when oil-stains are stuck on the outside of the light-transmitting window. Implemented as a photo coupler including a light-receiving element that receives the reflected ultraviolet ray, the test light, further includes a plurality of spray nozzles 12 installed inside the hood or duct, and the temperature sensor is provided in plural And, when the temperature sensed by the temperature sensor exceeds a set first reference temperature (the first reference temperature is a temperature higher than the second reference temperature), the control unit 11 The fire extinguishing agent filled with fire extinguishing agent is connected to the injection nozzle 12 of the automatic fire extinguishing system 10 by being driven by and capable of supplying the fire extinguishing liquid to the plurality of injection nozzles 12 The nitrogen gas storage tank head part 131 is equipped with a machine 110 and a nitrogen gas storage tank opening/closing valve (not shown) installed on one side of the fire extinguisher 110 to open the nitrogen gas storage tank opening/closing valve. A nitrogen gas storage unit 130 provided to supply nitrogen gas to the fire extinguisher 110 through a gas supply pipe 133, and fixed to the nitrogen gas storage head 131 of the nitrogen gas storage unit 130 It comprises an opening/closing means 150 provided to open the opening/closing valve for the nitrogen gas storage tank by being installed and driven corresponding to the control of the controller 11.

Here, the fire extinguisher 110 and the nitrogen gas storage unit 130 are provided internally in a housing having an opening and closing door that can be opened and closed.

In addition, a pressure reducer 170 is installed and provided on the nitrogen gas supply pipe 133 to reduce the pressure of the nitrogen gas supplied from the nitrogen gas storage unit 130.

On the other hand, the automatic fire extinguishing system described above is a configuration patent registration number 10-1713232 (announced on March 7, 2017) by the present applicant, a detailed description will be omitted below.

Hereinafter, a fire extinguishing agent supply device of the automatic fire extinguishing system according to the present invention will be described in more detail with reference to FIGS. 1 to 5.

First, the fire extinguisher 110 of the fire extinguishing agent supply device of the automatic fire extinguishing system according to the present invention described above is fixedly installed at the injection port of the fire extinguishing agent storage container 111 having an injection port 111 a, and the inside of the fire extinguishing agent storage container 111 An on-off valve (not shown) for a fire extinguisher is installed, and at one side, an inlet (not shown) so that the nitrogen gas supplied from the nitrogen gas storage unit 130 through the nitrogen gas supply pipe 133 is introduced so that the on-off valve for the fire extinguisher can be opened. An outlet (not shown) is formed, and the other side is able to supply the extinguishing agent stored in the extinguishing agent storage container 111 according to the inflow of nitrogen gas through the connection pipe 13 connected to the injection nozzle 12. ) Is formed of a fire extinguisher head 112.

That is, the fire extinguisher is provided with only a fire extinguishing agent.

Accordingly, it is possible to fill a larger amount of extinguishing agent than a fire extinguisher filled with nitrogen gas and extinguishing agent.

The nitrogen gas storage unit 130 is located at one side of the fire extinguisher and includes a nitrogen gas storage container 131 formed with a nitrogen gas storage injection unit 131a to store nitrogen gas, and the nitrogen gas of the nitrogen gas storage container 131 It is fixedly installed in the storage injection part 131a, and a valve for a nitrogen gas storage container is installed inside, and a connection part is formed so that the nitrogen gas supply pipe 133 is connected to the head part 132 for the nitrogen gas storage container. It is composed.

The opening/closing means 150 is operated by electronic control to open the nitrogen gas storage valve of the head of the nitrogen gas storage tank fixed to the nitrogen gas storage injection part of the nitrogen gas storage tank. It is provided so as to prevent malfunction due to progress.

That is, the opening/closing means 150 has a wiring hole perforated so that the power line A is wired on the outer circumferential surface, and can be coupled and fixed to the nitrogen gas storage injection part 131a of the nitrogen gas storage container 131 on the bottom surface. The opening and closing housing 151 is provided with a hollow coupling part 1521 formed thereon, and the outer circumferential surface is fixedly installed in the opening and closing housing 151 so as to rotate when power is applied through the power line (A). In the opening/closing drive motor 153, which has a rotation shaft on which a worm gear 153a is formed so as to be driven in the forward and reverse directions, the opening/closing drive motor 153 is engaged with the worm gear of the opening/closing drive motor 153. The gear unit 155 for transmission of rotational force composed of first, second, and third rotational gears (1551, 1552, 1153) to transmit rotational force by driving, and the third rotational gear of the gear unit 155 for transmission of rotational force (1553) The nitrogen gas is stored as one end is connected to the center in a gear manner and is drawn to the outside through the coupling part 1521 of the opening/closing housing 151 corresponding to the driving of the opening/closing drive motor 153 It consists of an opening/closing moving member 157 provided to pressurize and open the common valve.

Here, the opening/closing housing 151 is divided in a horizontal direction and is composed of an opening/closing upper housing 1510 and a lower housing 1520 for opening/closing which are provided to be coupled to each other via a plurality of fixing screws, The opening/closing upper housing 1510 has a fixing screw groove formed in a radial direction at the front end of the inner side, and is spaced apart from each other on one side of the inner ceiling so that the driving motor 153 for opening/closing can be fixed. A pair of fixing protrusions (1511) are protruding and protruding from one side of the fixing protrusion (1511) so that the first rotation gear (1551) of the gear unit for transmission of rotational force 155 can be rotatably installed. A support shaft 1512 for fish is formed, and a groove (not shown in the drawing) is formed in the central part so as to protrude from one side of the support shaft 1512 for the first rotation gear to rotatably accommodate one end of the second rotation gear 1551. In addition to the formation of the concave second rotation gear support shaft (1513), the second rotation gear support shaft (1513) is protruded from the center of the inner ceiling by being positioned on one side of the rotational force transmission gear unit (155). The three-rotation gear 1553 is provided with an opening and closing movable member support shaft 1514 in which an elliptical groove 1514a is concave to accommodate one end of the opening and closing movable member 157 connected in a gear manner so as not to rotate. do.

The opening/closing lower housing 1520 has a coupling hole 1520a formed at the front end of the bottom surface in a radial direction so as to be coupled and fixed to the opening/closing upper housing 1510 via a plurality of fixing screws, and one side of the bottom surface A pair of pressing protrusions 1522 spaced apart from each other to pressurize the outer circumferential surface of the opening/closing driving motor 153 by being coupled and fixed with the opening/closing upper housing 1510 are protruded, and the pair A first support protrusion 1523 having a concave receiving groove for the first support protrusion is formed to protrude from one side of the pressing protrusion 1522 of the first rotation gear to receive and support the end of the support shaft 1512 for the first rotation gear, and the first support protrusion 1523 is formed. In addition to the formation of a second support protrusion 1524 in which a receiving groove for a second support protrusion is concave to protrude from one side of the first support protrusion 1523 to rotatably accommodate and support the other end of the second rotation gear 1552 , A through hole 1525 is formed and provided so as to penetrate the central portion of the bottom surface by being positioned on one side of the second support protrusion 1524 to penetrate the other end of the moving member 157 for opening/closing.

The rotational force transmission gear part 155 is meshed with the worm gear 153a of the opening/closing drive motor 153 to rotate corresponding to the driving of the opening/closing drive motor 153 to rotate the moving member 157 for opening/closing. ) Is composed of first, second, and third rotation gears (1551,1552,1553) to be able to rotate.

That is, the first rotation gear 1551 of the gear unit 155 for transmission of rotational force is a rotation hole 1551a to penetrate the support shaft 1512 for the first rotation gear of the upper housing 1511 for opening and closing. Is formed, and a worm wheel 1551b is formed on the outer circumferential surface so as to mesh with the worm gear 153a of the driving motor 153 for opening and closing, and is formed to protrude from the upper surface of the worm wheel 1551b to apply rotational force toward the second rotation gear 1552. The first rotational power transmission gear 1551c is formed and provided so as to be transmitted.

The second rotation gear 1552 has an insertion protrusion 1552a protruding on one side so that one end of the second rotation gear 1552 is rotatably inserted into the groove of the support shaft 1513 for the second rotation gear formed in the upper housing 1510 for opening and closing, A connection gear 1552b is formed on the outer circumferential surface to engage with the first rotational power transmission gear 1551c, and a second rotational power transmission gear ( 1552c) is formed, and a support protrusion 1552d is formed to protrude so as to be rotatably inserted into the receiving groove for the second support protrusion formed in the second support protrusion 1524 of the lower housing 1520 for opening and closing.

The third rotation gear 1153 is formed in a circular plate shape, and a third rotational power transmission gear 1535a is formed on the outer circumferential surface so as to be toothed with the second rotational power transmission gear 1552c, and a moving member 157 for opening/closing in the center of the upper surface. ), a hollow moving guide part 153b, in which a guide gear part 153b' is formed on the inner circumferential surface, protrudes, and the upper end of the movable member support shaft 1514 for opening and closing by protruding in one direction on the bottom surface. A ring-shaped receiving protrusion 1553c is formed to protrude so as to be received and fixed.

The opening/closing movable member 157 is inserted into the moving guide part 1553b formed in the third rotation gear 1153 of the gear part 155 for transmission of rotational force, and corresponds to the rotation of the third rotation gear 1535 A moving screw part 157a is formed on the outer circumferential surface so that one end of the valve for the nitrogen gas storage container, which is drawn out through the through hole 1525 and installed in the head part 132 for the nitrogen gas storage container, can be opened, and the other end has an elliptical cross section. An insertion portion 157b having a portion is formed and provided.

The operation of the fire extinguishing agent supply device of the automatic fire extinguishing system according to the present invention made as described above is detected by at least one of a plurality of temperature sensors installed inside the hood and the duct due to a fire as shown in the accompanying drawings FIGS. 1 to 5. By applying the temperature to the control unit, the control unit opens and closes coupled to the nitrogen gas storage head 131 of the extinguishing agent supply device 110 by the control unit of the automatic fire extinguishing system 10 when the set reference temperature is exceeded. The driving motor 153 for opening and closing of the means 150 is driven.

The worm gear 153a rotates by the driving of the opening/closing drive motor 153, whereby the first rotation gear 1551 of the gear unit 155 for transmission of rotational force geared to the worm gear 153a rotates. .

A second rotation gear 1552 meshed with the first rotation gear 1551 by rotation of the first rotation gear 1551, and a third rotation gear 1535 meshed with the second rotation gear 1552 Will rotate.

The moving guide unit 157 for opening/closing inserted in a gear manner into the moving guide unit 1553b in which the guide gear unit 1553b′ is formed on the inner circumferential surface by the rotation of the third rotary gear 1553 is the moving guide unit 1553b. Is withdrawn from

The opening/closing movable member 157 is withdrawn from the moving guide part 1553b for a certain amount or more to pressurize the opening/closing valve for the nitrogen gas storage container provided in the head part 131 for the nitrogen gas storage container of the nitrogen gas storage part 130. It is opened.

When the opening/closing valve for the nitrogen gas storage tank is opened, the nitrogen gas stored in the nitrogen gas storage tank 131 is reduced through the pressure reducer 170 and supplied to the fire extinguisher 110 side.

Accordingly, the extinguishing agent filled in the extinguishing agent storage container 111 of the fire extinguisher 110 is supplied and injected to the injection nozzle 12 through the connection pipe 13 to extinguish the fire.

In this way, the fire extinguishing agent supply device of the automatic fire extinguishing system according to the invention does not mechanically open the opening/closing valve for the nitrogen gas storage container of the head part 131 for the nitrogen gas storage container coupled to the injection part of the nitrogen gas storage container 131. , Since it is opened by electronic control, malfunction over time can be prevented.

Claims

A plurality of temperature sensors installed on the inside of the hood or duct configured above the cookware to sense temperature, a plurality of spray nozzles 12 installed at one side of the plurality of temperature sensors, and at least one of the plurality of temperature sensors When the detected temperature exceeds the set reference temperature, the fire extinguishing agent supply device of the automatic fire extinguishing system 10 including a control unit 11 that controls to be injected through the plurality of injection nozzles 12,

A fire extinguisher 110 connected through the injection nozzle 12 and the connection pipe 13 and filled with a fire extinguishing agent;

The fire extinguisher 110 is provided with a nitrogen gas storage tank head part 131 installed on one side of the nitrogen gas storage tank opening and closing valve, and the nitrogen gas storage tank opening/closing valve is opened to the side of the fire extinguisher 110 through a nitrogen gas supply pipe. A nitrogen gas storage unit 130 provided to supply gas;

It is fixedly installed on the head portion 131 for the nitrogen gas storage container of the nitrogen gas storage unit 130 and is provided to open the opening/closing valve for the nitrogen gas storage container by driving corresponding to the control of the control unit 11. Opening and closing means 150

Fire extinguishing agent supply device of an automatic fire extinguishing system, characterized in that it comprises.
The method of claim 1,

A fire extinguishing agent supply device of an automatic fire extinguishing system, characterized in that a pressure reducer 170 is installed and provided on the nitrogen gas supply pipe 133 to reduce the pressure of the nitrogen gas supplied from the nitrogen gas storage unit 130.
The method of claim 1,

The opening/closing means 150 has a hole for wiring such that the power line A is wired on the outer circumferential surface thereof, and the bottom surface is a hollow to be coupled to and fixed to the nitrogen gas storage injection unit 131a of the nitrogen gas storage tank 131. An opening/closing housing 151 having a coupling portion 1521 formed thereon, and a worm gear ( The opening/closing drive motor 153 provided to be driven in the forward and reverse directions with a rotation shaft 153a) is engaged with the worm gear of the opening/closing drive motor 153 to drive the opening/closing drive motor 153 A gear unit 155 for transmission of rotational force composed of first, second, and third rotational gears 1551,1552,1553 so as to transmit rotational force, and a third rotational gear 1553 of the gear unit 155 for transmission of rotational force One end is connected to the central part in a gear manner, so that the valve for the nitrogen gas storage cylinder is drawn out through the coupling part 1521 of the opening/closing housing 151 to correspond to the driving of the driving motor 153 for opening/closing. Fire extinguishing agent supply device of an automatic fire extinguishing system, characterized in that consisting of a moving member (157) for opening and closing provided to be opened by pressing.
The method of claim 3,

The first rotation gear 1551 of the gear part 155 for transmission of rotational force has a rotation hole 1551a to penetrate the support shaft 1512 for the first rotation gear of the upper housing 1511 for opening and closing. And, a worm wheel 1551b is formed on the outer circumferential surface so as to mesh with the worm gear 153a of the driving motor 153 for opening and closing, and is formed to protrude from the upper surface of the worm wheel 1551b to transmit rotational force to the second rotation gear 1552. A first rotational power transmission gear (1551c) is formed and provided, and the second rotational gear (1552) has one end rotatable in the groove of the support shaft (1513) for the second rotational gear formed in the upper housing (1510) for opening and closing. An insertion protrusion 1552a is protruded on one surface to be inserted so as to be inserted, a connection gear 1552b is formed to engage with the first rotational power transmission gear 1551c on the outer circumferential surface, and a third rotational gear is on the upper surface of the connection gear 1552b. The second rotational power transmission gear 1552c is formed to transmit the rotational force to the (1553) side, and is rotatably inserted into the receiving groove for the second support protrusion formed in the second support protrusion 1524 of the lower housing 1520 for opening and closing. A support protrusion (1552d) is formed to protrude so as to be provided, and the third rotation gear (1553) is formed in a circular plate shape, and the third rotation power transmission gear (1553a) so as to be toothed with the second rotation power transmission gear (1552c) on the outer circumferential surface. Is formed, and a hollow moving guide portion 1535b having a guiding gear portion 1553b' formed on the inner circumferential surface to guide the opening and closing movable member 157 to be moved is protruded on the upper surface, and protruding in one direction on the bottom surface. A fire extinguishing agent supply device of an automatic fire extinguishing system, characterized in that the ring-shaped receiving protrusion (1553c) is protruded and provided so as to receive and fix the upper end of the moving member support shaft (1514) for opening and closing.
The method of claim 3,

The opening/closing movable member 157 is inserted into the moving guide part 153b formed in the third rotation gear 1153 of the gear part 155 for transmission of rotational force, and corresponds to the rotation of the third rotation gear 1535 A moving screw part 157a is formed on the outer circumferential surface so that one end of the valve for the nitrogen gas storage container, which is drawn out through the through hole 1525 and installed in the head part 132 for the nitrogen gas storage container, can be opened, and the other end has an elliptical cross section. A fire extinguishing agent supply device of an automatic fire extinguishing system, characterized in that the insertion part (157b) is formed and provided.