WO2013136674A1 - Automatic fire extinguishing device - Google Patents

Abstract

A gas container (20) which is filled with fire extinguishing gas and which has a mouth sealed by a sealing plate (24) is mounted in a removable manner to a seal breaking housing (7). A through-hole (15) and a nozzle hole (23) which connects to the through-hole (15) are formed in the seal breaking housing (7). The nozzle hole (23) is disposed so as to be directed to a predetermined position outside the seal breaking housing (7). An automatic fire extinguishing device comprises a fire extinguishing gas ejector (5) having a seal breaking unit (18) which has a needle pipe (33) and which is provided in the through-hole (15) so as to be movable to the sealing plate (24). The operation of the seal breaking unit (18) is operationally associated with an actuator (8) which can be operated by a signal from a fire detector. Seal breaking can be performed by rotating or rectilinearly moving the seal braking unit (18).

Description

Automatic fire extinguisher

The present invention is suitable for extinguishing an electric fire in, for example, an automobile charging facility equipped with a simple fire extinguisher, and can surely and quickly extinguish, and accurately operates an alarm device in accordance with the actual fire extinguishing operation of the fire extinguishing facility. In addition, the present invention relates to an automatic fire extinguishing device that can ensure the reliability of alarm operation.

With the advent of hybrid cars and electric cars in recent times, it has been pointed out that the power supply or charging facilities are widespread and enriched, and it is pointed out that fires in charging facilities etc. and the installation of fire extinguishing equipment have been established.
Conventionally, there is an automatic fire extinguishing device for a production facility in a factory, for example, in response to such a request.
In this automatic fire extinguishing apparatus, a fire detector, a smoke detector, and an injection nozzle for injecting a fire extinguishing gas are arranged in an upper part of a processing chamber closed around a machine tool, and the injection nozzle is used as an ignition source of the processing chamber. In addition to being installed toward the bottom, a warning lamp was added to inform the control panel that controls the fire extinguishing equipment of the occurrence of a fire and a warning generator that advised the occurrence of a fire and evacuation.
When the workpiece is cut, the cutting oil burns at the bottom of the processing chamber, and when this is detected by both the fire detector and smoke detector, an alarm lamp is turned on and a fire is generated by the warning generator. After recommending evacuation, carbon dioxide was injected from the injection nozzle toward the bottom of the fire source to extinguish the fire (see, for example, Patent Document 1)

However, since this automatic fire extinguishing device targets a wide fire extinguishing space, a high pressure pipe is connected to the injection nozzle, a large capacity fire extinguishing gas cylinder is connected to the high pressure pipe, and a solenoid valve that opens and closes the flow path to the high pressure pipe Since the solenoid valve is controlled to be opened and closed by a control panel, there is a problem that the equipment is large and expensive.
Further, since the warning generator operates before the injection of carbon dioxide, a message is issued regardless of whether carbon dioxide is actually injected, and there is a problem in the reliability of the warning operation.

In order to solve the above problem, an automatic fire extinguisher is installed at the top of the kitchen, the fire extinguisher is provided with a firing mechanism at the top of the casing, and a first container filled with a fire extinguishing agent at the bottom of the casing is pressurized. A second container filled with a medium is juxtaposed, and the operation of the firing mechanism is linked to a sensor for detecting smoke or heat. When the sensor is activated, the firing needle is lowered to break the second container, The fire extinguishing agent is sucked out from the suction pipe when the pressurized medium moves right above the first container, and the fire extinguishing agent is guided to the pipe and ejected from the nozzle toward the gas stove (for example, Patent Document 2).

However, this automatic fire extinguisher has a problem that the structure of the firing mechanism is complicated and large, and the first and second containers are required to increase the weight and become expensive.

Further, as another means for solving the above problem, a power supply unit and a control unit, a plurality of fire extinguishing agent cartridges, and a jet unit for breaking the cartridges in cooperation with the respective units. A fire extinguishing agent tube is arranged outside the box, a head unit having an ultraviolet sensor and an injection nozzle is provided at the tip of the fire extinguishing agent tube, and the head unit is directed toward the ignition site to ignite the flame. There is an automatic fire extinguishing device that monitors and detects a flame by an ultraviolet sensor, operates an injection unit to break a fire extinguisher cartridge, and ejects the fire extinguishing agent from an injection nozzle (for example, Patent Document 3). reference).

However, this automatic fire extinguisher is expensive because it requires an ultraviolet sensor and a laser pointer for the head unit, and the relationship between the jet unit and its sealing mechanism is unclear and lacks in concreteness. There was a problem.

Therefore, in order to solve such a problem, the injector body is suspended from the wall surface of the room through a case, a cylinder receiver and a gas cylinder attached to the cylinder receiver are installed in the case, and the cylinder receiver A shaft body provided with a shooting needle is slidably mounted, and a pair of retainer legs are pressed against an intermediate portion of the shaft body to prevent downward movement of the shaft body at the same time. A cam provided with a pair of cam projections on the leg end side is rotatably arranged, a pair of cam projections are projected from the base end of the cam, and the cam projection is engaged with the leg end of the retainer. The shape memory spring is stretched between the tip of the cam and the base of the retainer, the shape memory spring is reduced in the event of a fire, the cam is rotated, and the cam protrusion is Automatic fire extinguishing system that engages and expands the leg end of the rod, releases the latch of the shaft, and lowers the shaft to break it. Scan injector is (for example, see Patent Document 4).

However, since the automatic fire extinguishing gas injector senses the occurrence of a fire with the shape memory spring in the case, the fire detection time is delayed, causing the spread of the fire and not being able to respond effectively to the initial fire extinguishing, After the fire was detected, there was a problem that the fire expanded and missed the fire extinguishing time.

JP 2007-159868 A JP 2006-102410 A JP 2009-240745 A JP-A-8-38638

The present invention solves such a problem, and is suitable for extinguishing an electric fire in, for example, an automobile charging facility equipped with a simple fire extinguisher, and can be surely and quickly extinguished and matched with an actual fire extinguishing operation of the fire extinguishing facility. It is an object of the present invention to provide an automatic fire extinguishing device that can accurately operate an alarm device and ensure the reliability of the alarm operation.

According to the first aspect of the present invention, a gas cylinder filled with a fire extinguishing gas and sealed at the mouth with a sealing plate is detachably attached to the tearing housing, and the through hole and the nozzle communicating with the through hole are connected to the tearing housing A fire extinguishing gas injector is provided in which a hole is formed, the nozzle hole is arranged toward a predetermined external position, and a tear-off unit provided with a needle tube in the through-hole is movable to the sealing plate side. A gas injector is installed in a predetermined fire extinguishing space, and the operation of the breaker unit is linked to an actuator operable by a fire detector signal that senses smoke or a predetermined heat, and the breaker unit or In an automatic fire extinguishing apparatus in which gas cylinders are relatively close and can be torn, a tearing unit is provided to be interlocked with the operation of the actuator, and the tearing unit can be rotated or linearly moved to be torn. The break The structure is simplified and promptly sealed by breaking the knit linearly, reducing the power consumption of the battery and the like and reducing its capacity, while reducing the size, weight and cost of this type of device. By breaking the seal by turning the breaker unit, the impact or wear when the breaker unit or the needle tube is broken is reduced and its continuous use is encouraged.

According to the invention of claim 2, the actuator is provided so as to be able to rotate forward and backward, and the needle tube of the breaking unit is rotated so as to be able to be broken, so that the breaking by the breaking unit and its original position return operation can be performed easily and easily. In addition, it can reduce the impact and wear at the time of the breakage of the breaker unit or the needle tube, and promote its continuous use.
According to the invention of claim 3, the shaft end of the breaking unit is detachably connected to the output shaft of the actuator so that the output shaft and the connecting shaft can be easily detached, and the connecting shaft and the breaking unit are worn or damaged. To make it easier to maintain.
According to a fourth aspect of the present invention, a screw portion is provided in the rupture housing, a screw shaft that can be screwed into the screw portion is provided in the rupture unit, and a connecting shaft and a screw shaft of the rupture unit and a needle tube are provided. The breaker shaft is integrally formed so that the structure of the breaker unit can be simplified and manufactured easily and inexpensively, and smooth breakage can be realized.

According to the invention of claim 5, the connecting shaft, the screw shaft, and the breaking shaft provided with the needle tube are configured separately so that each part can be manufactured easily and rationally.
According to the invention of claim 6, the breaking shaft is urged and arranged to be movable toward the screw shaft side, and the displacement of the screw shaft is surely transmitted to the breaking shaft and the returning operation of the breaking shaft is promoted. ing.
In the invention of claim 7, the ends of the screw shaft and the breaking shaft are spaced apart from each other, and a steel ball is interposed between them so as to be swingable. In addition to facilitating smooth operation of the rupture unit, the consumption of power sources such as batteries is reduced and its capacity is reduced.
In the invention of claim 8, an O-ring is disposed at a lower end portion in a housing case that engages with an upper end portion of the severing housing, and the upper end portion of the screw shaft can be engaged with the O-ring. The engagement or contact with the housing case when moving up is buffered, the biting of the screw shaft into the housing case is prevented, the actuator is prevented from being seized, and the screw shaft is reattached. The operation is performed smoothly.
According to the ninth aspect of the present invention, the actuator, the breaking unit, and the breaking housing are arranged coaxially so that the installation space can be made compact.

According to the invention of claim 10, the fire extinguishing space is a closed space and the fire extinguishing gas is carbon dioxide, which is suitable for an electric fire in a narrow fire extinguishing space such as a distribution board box.
The invention of claim 11 is provided with an alarm device operable at the time of breaking by a needle tube, and the alarm device is installed in a fire extinguishing gas injector or its surroundings or in a management room separated from the fire fighting space, and an actual breakage is made. The fire extinguishing space and management office workers can be notified accurately so that the execution of the fire fighting work can be confirmed, and if necessary, measures such as evacuation can be recommended.
According to a twelfth aspect of the present invention, there is provided a drive unit including an actuator, a power source thereof, a controller for controlling the drive of the actuator, and a receiver capable of receiving a fire detector signal. Is arranged in the vicinity of the actuator, and the mechanism for controlling the operation of the actuator by the fire detection signal is compactly configured to improve the convenience of installation and its use.
According to a thirteenth aspect of the present invention, a limit switch capable of detecting the displacement of the severing unit corresponding to the smashing is arranged facing the moving range of the connecting shaft or the screw shaft, and the detection signal of the limit switch is controlled by the control. It is possible to output to the alarm device through the detector, detect the breakage or the start of fire extinguishing operation by the displacement of the connecting shaft or screw shaft, and accurately notify the start of the actual breakage or fire fighting operation by the alarm device. The fire fighting can be announced.

In the invention of claim 14, the actuator, the breaking unit and the breaking housing are arranged on different axes parallel to each other, so that the installation space perpendicular to the axial direction can be made compact.
According to the fifteenth aspect of the present invention, a screw portion is provided on the output shaft of the actuator, one end of the connecting piece is swingably connected to a nut screwed to the screw portion, and the other end of the connecting piece is swingable. The connecting piece is provided so as to be able to swing around the supporting portion through the axial displacement of the nut, facing the swinging area of the connecting piece, and parallel to the output shaft. The breaker unit is disposed in the breaker housing so that the breaker unit can be moved in and out, and an end of the breaker unit is disposed so as to be engageable with the connecting piece. The actuator, the breaker unit, and the breaker housing Are arranged on different axes parallel to each other, so that the installation space orthogonal to the axial direction is made compact, and the breaking unit is interlocked with the operation of the connecting piece so that it can be surely broken. .

In the invention of claim 16, one end of a rotating shaft is detachably mounted on the output shaft of the actuator, a bevel gear is disposed on the other end of the rotating shaft, and two gears that can mesh with the bevel gear are provided. The bevel gears are arranged opposite to each other, the breakage housings provided with the screw portions on the same axis of the bevel gears are arranged opposite to each other, and the breakage housing provided with the screw shaft is attached to the breakage housings. One end of the tearing unit is slidably mounted on the bevel gear, and each tearing unit can be moved close to and away from each other via the rotation of the bevel gear, so that the gas cylinders mounted on each tearing housing can be simultaneously sealed. A gas bonnet attached to each severing housing, wherein one end of the severing unit is slidably attached to the bevel gear, and each severing unit is provided so as to be able to move toward and away from each other via rotation of the bevel gear. Simultaneously Yabufu capable mounted, one actuator - simultaneously Yabufu two gas cylinder by motor, so that to improve the enhanced extinguishing efficiency fire-extinguishing capability.

According to the seventeenth aspect of the present invention, the screw portion and the through hole are formed on both sides of a single breakage housing, and two breakage units each having a screw shaft are mounted on the screw portion and the through hole. A gear is attached to one end of the actuator, and a drive gear is disposed between the gears so that the drive gear can be engaged. The drive gear is attached to the output shaft of the actuator. It can be moved in the same direction and attached to the other end of the smashing housing, and two gas cylinders can be simultaneously smashed by one actuator to enhance the fire-fighting capability and improve the fire-fighting efficiency. In order to reduce the number of parts and simplify the configuration, the installation space can be made compact by installing two rupture units in a single rupture housing.

In the invention of claim 18, a gas cylinder filled with a fire extinguishing gas and sealed at its mouth with a sealing plate is detachably attached to the breaking housing, and the through hole and the nozzle communicating with the through hole are provided in the breaking housing. A fire extinguishing gas injector is provided in which a hole is formed, the nozzle hole is arranged toward a predetermined external position, and a tear-off unit provided with a needle tube in the through-hole is movable to the sealing plate side. A gas injector is installed in a predetermined fire extinguishing space, and the operation of the breaker unit is linked to an actuator operable by a fire detector signal that senses smoke or a predetermined heat, and the breaker unit or In the automatic fire extinguishing apparatus in which gas cylinders are relatively close and can be torn, a breaker unit is provided to be interlocked with the operation of the actuator, and the breaker unit is operated in a straight line so that it can be torn. in front A housing case is installed at a predetermined height of the fire extinguishing space, and the smashing unit and the smashed housing fitted with a gas cylinder are accommodated in the housing case so as to be able to move close to each other, and the actuator output is stored in the housing case. The shaft is detachably disposed, the output shaft is normally engaged with the housing case to hold the housing case at a predetermined height, and when the fire detector is activated, the output shaft is engaged with the housing case. The housing case can be dropped, the broken housing or the broken unit can be moved close to each other through the impact at the time of dropping, and the breakage by gravity is realized reasonably and inexpensively, The structure is simplified and the production is made cheaper.

According to the nineteenth aspect of the present invention, the fire extinguishing space is a closed space and the fire extinguishing gas is carbon dioxide, which is suitable for an electric fire in a narrow fire extinguishing space such as a distribution box.
The invention of claim 20 is provided with an alarm device operable at the time of breaking by a needle tube, and the alarm device is installed in a fire extinguishing gas injector or its vicinity or in a management room separated from the fire fighting space, and an actual breakage is made. The fire extinguishing space and management office workers can be notified accurately so that the execution of the fire fighting work can be confirmed, and if necessary, measures such as evacuation can be recommended.
According to a twenty-first aspect of the present invention, there is provided a drive unit including an actuator, a power source thereof, a controller for controlling the drive of the actuator, and a receiver capable of receiving a fire detector signal. Is arranged in the vicinity of the actuator, and the mechanism for controlling the operation of the actuator by the fire detection signal is compactly configured to improve the convenience in use.
According to the invention of claim 22, guide struts are arranged vertically at a position close to the housing case, and the housing case, the gas cylinder, and the broken housing are dropped along the guide strut, so that the housing case and the like can be easily and reliably dropped. I try to do it.

According to the invention of claim 23, the gas cylinder protrudes below the rupture housing and is hung, so that the bottom of the gas cylinder can collide when dropped, and can be rationally sealed by the falling energy of the gas cylinder.
According to the invention of claim 24, the output shaft can be moved or rotated in the axial direction, and can correspond to various output shafts of the actuator.
According to a twenty-fifth aspect of the present invention, a hook-shaped latch cam is mounted on the output shaft, a hook-shaped latch that can be engaged with and disengaged from the latch cam is provided in the housing case, and the housing case is always engaged by engaging the latch with the latch cam. When the fire detector is activated, the latch and the latch cam are disengaged, the housing case can be dropped, and the housing case is held and dropped by engaging and disengaging the latch and the latch cam. Is surely done.
According to a twenty-sixth aspect of the present invention, a notch groove that opens laterally and downwardly is formed in the housing case, and an upper portion of the cylindrical housing is rotatably connected to the notch groove, and the sealed container is enclosed in the cylindrical housing. The unit and the sealed housing are accommodated so that they can be moved close to each other, and the cylindrical housing mounted on the sealed housing can be turned in a direction perpendicular to the falling direction of the gas cylinder so that the gas cylinder can be easily attached and detached when the cylindrical housing is turned. In addition, the gas cylinder can be dropped when the cylindrical housing is reset.

According to the invention of claim 27, a pair of cylinder holders are arranged oppositely directly below the housing case, the lower part of the cylindrical housing can be clamped through the cylinder holder, the rocking of the cylindrical housing or the gas cylinder is prevented, and the gas cylinder is stabilized. And hold it.
According to the invention of claim 28, a high-repulsive contact plate is arranged in the falling region of the gas cylinder, and the impact at the time of dropping is efficiently transmitted to the gas cylinder or the sealed housing so as to promote high-repulsion so that the gas can be reliably sealed. I have to.
In the invention of claim 29, a slide block is slidably provided inside the housing case, and a rotary shaft linked to an actuator capable of rotating forward and backward is detachably disposed on the slide block, and the slide block is broken. A sealing unit is protruded downward, and a lower end portion of a center shaft is fixed to the slide block. The center shaft is protruded upward, and a case cover is fixed to an upper portion of the housing case. The center shaft is slidably disposed, a spring is inserted between the case cover and the slide block, and the slide block is urged to move downward through the elasticity of the spring. While the shaft is provided so that the upper position of the shaft can be held, the slide block is always held at the uppermost position via the rotating shaft, and the slide block is While the actuator is operated, the rotation shaft and the slide block are disengaged through the operation of the actuator, the slide block is pushed down by the elasticity of the spring, and the breaker unit is moved together with this. It can be broken, and it can be easily and inexpensively realized by the elasticity of the spring.

According to a thirty-third aspect of the present invention, an end face cam is formed in a helical shape at the upper part of the case cover, an operation handle that can be engaged with the end face cam is projected from the upper part of the center shaft, and the operation handle is rotated. The center shaft can be moved up through the center handle, and the center shaft is pulled up by the turning operation of the operation handle, so that a state in which the center shaft can be broken is easily realized.
In the invention of claim 31, the rotation shaft is formed in a substantially horizontally long rectangular cross section, a through hole for rotatably receiving the rotation shaft in the slide block, and a guide groove communicating with the through hole are formed. The rotation shaft accommodated in the through hole is disposed so as to be engageable with the opening of the guide groove, and the engagement / disengagement operation of the slide block by the rotation shaft is easily realized.
According to the invention of claim 32, the actuator is provided with a piston rod that can be expanded and contracted, the piston rod is arranged to be engageable with a lower portion of the gas cylinder, and the housing can be engaged with or disengaged from the housing. Arranged in the housing case, the breakage unit is fixed to the housing case, the piston rod is extended through the operation of the actuator, the gas cylinder and the breakage housing are pushed up to enable breakage, and the configuration is simplified and easy. This makes it possible to realize an inexpensive break.

According to the first aspect of the present invention, since the breaking unit is provided so as to be interlocked with the operation of the actuator and the breaking unit is rotated or linearly moved, the breaking can be performed. This simplifies the configuration and promptly breaks down, reduces the consumption of power sources such as batteries and reduces their capacity, and reduces the size, weight, and cost of this type of device, while turning the breaker unit By breaking, it is possible to reduce the impact or wear at the time of breaking the breaker unit or the needle tube, and to promote its continuous use.
According to the second aspect of the present invention, the actuator is provided so as to be able to be rotated forward and backward, and the needle tube of the breaking unit is rotated so that the breaking is possible. In addition to being easy to carry out, it is possible to reduce the impact or wear at the time of the breaking of the breaking unit or the needle tube, and to promote its continuous use.
In the invention of claim 3, since the shaft end of the breaking unit is detachably connected to the output shaft of the actuator, the output shaft and the connecting shaft can be easily removed, and the wear of the connecting shaft and the breaking unit can be reduced. It can easily cope with damage and facilitate maintenance.

According to a fourth aspect of the present invention, a screw portion is provided in the rupture housing, a screw shaft that can be screwed into the screw portion is provided in the rupture unit, and a connecting shaft and a screw shaft of the rupture unit and a needle tube are provided. Since the broken shaft is integrally formed, the structure of the broken unit can be simplified, and it can be manufactured easily and inexpensively, and smooth breaking can be realized.
According to the invention of claim 5, since the connecting shaft, the screw shaft, and the breaking shaft provided with the needle tube are separated, each part can be easily and rationally manufactured.
In the sixth aspect of the invention, since the broken shaft is arranged so as to be movable toward the screw shaft side, the displacement of the screw shaft can be reliably transmitted to the broken shaft, and the returning operation of the broken shaft is promoted. be able to.
In the invention of claim 7, since the end portions of the screw shaft and the breaking shaft are spaced apart from each other and a steel ball is interposed between them so as to be able to swing, The friction can be reduced, the smooth operation of the sealing unit can be promoted, and the consumption of the power source such as a battery can be reduced and its capacity can be reduced.
In the invention of claim 8, an O-ring is disposed at the lower end in the housing case that engages with the upper end of the severing housing, and the upper end of the screw shaft can be engaged with the O-ring. The engagement or contact with the housing case when the shaft moves up is buffered to prevent the screw shaft from biting into the housing case and the actuator shaft from being seized. Can be restarted smoothly.

According to the ninth aspect of the present invention, since the actuator, the breaking unit, and the breaking housing are coaxially arranged, it is possible to make the installation space compact.
According to the invention of claim 10, since the fire extinguishing space is a closed space and the fire extinguishing gas is carbon dioxide, it is suitable for an electric fire in a narrow fire extinguishing space such as a distribution board box.
According to the eleventh aspect of the present invention, an alarm device operable at the time of breakage by a needle tube is provided, and the alarm device is installed in a fire extinguishing gas injector or the vicinity thereof or a control room separated from the fire extinguishing space. The seal can be accurately notified to the fire extinguishing space and the operator in the management room, and the execution of the fire fighting operation can be confirmed, and if necessary, measures such as evacuation can be recommended.
According to a twelfth aspect of the present invention, there is provided a drive unit including an actuator, a power source thereof, a controller for controlling the drive of the actuator, and a receiver capable of receiving a fire detector signal. Since the actuator is disposed in the vicinity of the actuator, the mechanism for controlling the operation of the actuator by the fire detection signal can be configured in a compact manner, and simple installation and convenience in use can be improved.

According to a thirteenth aspect of the present invention, a limit switch capable of detecting the displacement of the severing unit corresponding to the smashing is arranged facing the moving range of the connecting shaft or the screw shaft, and the detection signal of the limit switch is controlled by the control. Since it is possible to output to the alarm device through the detector, the start of the breakage or the fire extinguishing operation is detected by the displacement of the connecting shaft or the screw shaft, and the actual breakage time or the start of the breakage is accurately notified by the alarm device, It is possible to notify the execution of sure fire extinguishing.
According to the fourteenth aspect of the present invention, since the actuator, the breaking unit and the breaking housing are arranged on different axes parallel to each other, the installation space perpendicular to the axial direction can be made compact.
According to the fifteenth aspect of the present invention, a screw portion is provided on the output shaft of the actuator, one end of the connecting piece is swingably connected to a nut screwed to the screw portion, and the other end of the connecting piece is swingable. The connecting piece is provided so as to be able to swing around the supporting portion through the axial displacement of the nut, facing the swinging area of the connecting piece, and parallel to the output shaft. The breaker unit is disposed in the breaker housing so as to be able to appear and retract, and the end of the breaker unit is disposed so as to be engageable with the connecting piece. By disposing the housing on different axes parallel to each other, the installation space perpendicular to the axial direction can be made compact, and the breaking unit can be linked to the operation of the connecting piece for reliable breaking.

In the invention of claim 16, one end of a rotating shaft is detachably mounted on the output shaft of the actuator, a bevel gear is disposed on the other end of the rotating shaft, and two gears that can mesh with the bevel gear are provided. The bevel gears are arranged opposite to each other, the breakage housings provided with the screw portions on the same axis of the bevel gears are arranged opposite to each other, and the breakage housing provided with the screw shaft is attached to the breakage housings. One end of the tearing unit is slidably mounted on the bevel gear, and each tearing unit can be moved close to and away from each other via the rotation of the bevel gear, so that the gas cylinders mounted on each tearing housing can be simultaneously sealed. A gas bonnet attached to each severing housing, wherein one end of the severing unit is slidably attached to the bevel gear, and each severing unit is provided so as to be able to move toward and away from each other via rotation of the bevel gear. Simultaneously from the Yabufu capable mounted, one actuator - simultaneously Yabufu two gas cylinder by motor, it is possible to improve the enhanced extinguishing efficiency fire-extinguishing capability.

According to the seventeenth aspect of the present invention, the screw portion and the through hole are formed on both sides of a single breakage housing, and two breakage units each having a screw shaft are mounted on the screw portion and the through hole. A gear is attached to one end of the actuator, and a drive gear is disposed between the gears so that the drive gear can be engaged. The drive gear is attached to the output shaft of the actuator. Since it is installed so that it can move in the same direction, it is attached to the other end of the smashing housing, and two gas cylinders can be smashed at the same time by one actuator, thus enhancing the fire fighting capability and improving the fire fighting efficiency. At the same time, it is possible to reduce the number of parts and simplify the configuration by mounting two rupture units in a single rupture housing, and to make the installation space compact.

The invention according to claim 18 is provided such that a breaking unit can be interlocked with the operation of the actuator, the breaking unit can be operated linearly and can be broken, and the housing case is placed at a predetermined height of the fire extinguishing space. The housing case is accommodated in the housing case so as to be able to move in a close proximity, and the output shaft of the actuator is detachably disposed in the housing case. The shaft is always engaged with the housing case to hold the housing case at a predetermined height, and when the fire detector is activated, the engagement between the output shaft and the housing case can be released and the housing case can be dropped. Since the breakage housing or the breaker unit is moved close to each other via impact when dropped, the breakage by gravity is realized at a reasonable and low cost, and the structure is simplified. It is possible to achieve a cost reduction of the reduction and production.

According to the nineteenth aspect of the present invention, since the fire extinguishing space is a closed space and the fire extinguishing gas is carbon dioxide, there is an advantageous effect for an electric fire in a narrow fire extinguishing space such as a distribution board box.
The invention of claim 20 is provided with an alarm device operable at the time of breakage by a needle tube, and the alarm device is installed in a fire extinguisher gas injector or its vicinity or a control room separated from the fire extinguishing space. The seal can be accurately notified to the fire extinguishing space and the operator in the management room, and the execution of the fire fighting operation can be confirmed, and if necessary, measures such as evacuation can be recommended.
According to a twenty-first aspect of the present invention, there is provided a drive unit including an actuator, a power source thereof, a controller for controlling the drive of the actuator, and a receiver capable of receiving a fire detector signal. Since the actuator is disposed in the vicinity of the actuator, the mechanism for controlling the operation of the actuator by the fire detection signal can be configured in a compact manner, and simple installation and convenience in use can be improved.
According to the invention of claim 22, since the guide column is vertically arranged in the proximity of the housing case and the housing case, the gas cylinder, and the broken housing are dropped along the guide column, the housing case and the like can be easily and reliably dropped. Can be done.
According to the twenty-third aspect of the present invention, since the gas cylinder protrudes below the rupture housing and is suspended, and the bottom of the gas cylinder can be struck at the time of dropping, the gas cylinder can be rationally broken by the falling energy of the gas cylinder.

According to the twenty-fourth aspect of the present invention, since the output shaft can be moved or rotated in the axial direction, it can correspond to various output shafts of the actuator.
According to a twenty-fifth aspect of the present invention, a hook-shaped latch cam is mounted on the output shaft, a hook-shaped latch that can be engaged with and disengaged from the latch cam is provided in the housing case, and the housing case is always engaged by engaging the latch with the latch cam. Since the engagement between the latch and the latch cam is released and the housing case can be dropped when the fire detector is activated, the housing case can be held by holding and releasing the latch and the latch cam. And can be surely dropped.
According to a twenty-sixth aspect of the present invention, a notch groove that opens laterally and downwardly is formed in the housing case, and an upper portion of the cylindrical housing is rotatably connected to the notch groove, and the sealed container is enclosed in the cylindrical housing. The unit and the sealed housing are slidably accommodated, and the cylindrical housing attached to the sealed housing can be turned in a direction perpendicular to the gas cylinder dropping direction, so that the gas cylinder can be easily attached and detached when the cylindrical housing is turned. The gas cylinder can be dropped when the cylindrical housing is reset.
According to the twenty-seventh aspect of the present invention, since the pair of cylinder holders are arranged opposite to each other directly below the housing case and the lower part of the cylindrical housing can be sandwiched via the cylinder holder, the cylindrical housing or the gas cylinder is prevented from swinging, and the gas cylinder is Can be held stably.

According to the invention of claim 28, since the high repulsion contact plate is arranged in the falling area of the gas cylinder, the impact at the time of dropping is efficiently transmitted to the gas cylinder or the rupture housing to promote high repulsion and to ensure the sealing. Can do.
In the invention of claim 29, a slide block is slidably provided inside the housing case, and a rotary shaft linked to an actuator capable of rotating forward and backward is detachably disposed on the slide block, and the slide block is broken. A sealing unit is protruded downward, and a lower end portion of a center shaft is fixed to the slide block. The center shaft is protruded upward, and a case cover is fixed to an upper portion of the housing case. The center shaft is slidably disposed, a spring is inserted between the case cover and the slide block, and the slide block is urged to move downward through the elasticity of the spring. While the shaft is provided so that the upper position of the shaft can be held, the slide block is always held at the uppermost position via the rotating shaft, and the slide block is While the actuator is operated, the rotation shaft and the slide block are disengaged through the operation of the actuator, the slide block is pushed down by the elasticity of the spring, and the breaker unit is moved together with this. Since it can be broken, it can be easily and inexpensively realized by the elasticity of the spring.

According to a thirty-third aspect of the present invention, an end face cam is formed in a helical shape at the upper part of the case cover, an operation handle that can be engaged with the end face cam is projected from the upper part of the center shaft, and the operation handle is rotated. Since the center shaft can be moved upward through the center handle, the center shaft can be pulled up by the turning operation of the operation handle to easily realize a state where the center shaft can be broken.
In the invention of claim 31, the rotation shaft is formed in a substantially horizontally long rectangular cross section, a through hole for rotatably receiving the rotation shaft in the slide block, and a guide groove communicating with the through hole are formed. Since the rotation shaft accommodated in the through hole is disposed so as to be engageable with the opening of the guide groove, the engagement / disengagement operation of the slide block by the rotation shaft can be easily realized.
According to the invention of claim 32, the actuator is provided with a piston rod that can be expanded and contracted, the piston rod is arranged to be engageable with a lower portion of the gas cylinder, and the housing can be engaged with or disengaged from the housing. Arranged in the housing case, the breaking unit is fixed to the housing case, the piston rod is extended through the operation of the actuator, and the gas cylinder and the breaking housing are pushed up to be able to be broken. Easy and inexpensive breakage can be realized.

It is a front view which shows the condition which installed this invention in the distribution board box. It is a front view which shows the automatic fire extinguishing apparatus to which this invention is applied, and one part is sectional drawing. (A) is sectional drawing which shows the principal part of this invention apparatus, and has shown the reset condition of the uppermost position of the sealing unit. (B) is a circuit diagram showing the main part of the rotation direction control unit of the drive motor applied to the present invention. FIG. 4 is an enlarged cross-sectional view taken along the line AA in FIG. (A) is the front view which expands and shows the smashing unit applied to this invention, and has shown one part sectional drawing. (B) is the front view which expands and shows the form which isolate | separated and comprised the tearing unit applied to this invention, and is partially sectional drawing.

It is sectional drawing which shows the principal part of this invention apparatus, and has shown the breaking condition in the lowest position of a breaking unit. It is sectional drawing which shows the principal part of this invention apparatus, and has shown the condition in the middle of the upward movement of the severing unit after severing. It is sectional drawing which shows the principal part of 2nd Embodiment of this invention apparatus. It is sectional drawing which shows the principal part of 3rd Embodiment of this invention apparatus. It is sectional drawing which shows the principal part of 4th Embodiment of this invention apparatus.

It is sectional drawing which shows the principal part of 5th Embodiment of this invention apparatus, and has shown the condition before dropping of a housing case. It is sectional drawing which shows the principal part of the said 5th Embodiment, and shows the condition after the housing case falls. FIG. 10 is a cross-sectional view showing the main part of the fifth embodiment, showing a state of breaking after the housing case is dropped. It is sectional drawing which shows the principal part of 6th Embodiment of this invention apparatus, and has shown the condition before breakage. It is sectional drawing which shows the principal part of the said 6th Embodiment, and has shown the condition after rupture. It is sectional drawing which shows the principal part of 7th Embodiment of this invention apparatus, and has shown the condition before breakage.

It is explanatory drawing which shows the 8th Embodiment of this invention, and has shown the fire extinguishing condition which opened the fire extinguishing gas injector after the fire outbreak. It is sectional drawing which expands and shows the fire extinguishing apparatus applied to the said 8th Embodiment. In the cross-sectional view of the upper end of the shaft cylinder part of the fire extinguishing apparatus applied to the eighth embodiment, it is shown enlarged. It is sectional drawing which shows the principal part of the operating state of the fire extinguisher applied to the said 8th Embodiment, (a) shows the normal state before fire outbreak, (b) receives the signal of a fire detector, and is actuated. -Indicates that the alarm has been activated and the alarm has been informed that the alarm has been announced. (C) shows the situation where the rupture unit is moved up after the rupture and the fire extinguishing and the alarm are continuously operated.

It is sectional drawing which expands and shows the fire extinguisher applied to the 9th Embodiment of this invention, and the normal time is shown. It is a longitudinal cross-sectional view of FIG. The situation is shown in which the cylindrical housing is rotated upward and the gas cylinder is attached and detached. FIG. 23 is a cross-sectional view taken along line BB of FIG. It is a perspective view of the latch cam applied to 9th Embodiment. FIG. 26 is a cross-sectional view taken along the line CC of FIG. 25.

It is a front view which expands and shows the engagement condition of the latch cam and latch at the time of the normal state applied to 9th Embodiment. FIG. 28 is a cross-sectional view taken along line DD in FIG. 27. It is a perspective view which decomposes | disassembles and shows the latch applied to 9th Embodiment. FIG. 28 is a cross-sectional view taken along the line EE in FIG. 27, showing a state of engagement between the latch cam and the latch. The latch cam is rotated from the situation of FIG. 30, and the situation where the engagement with the latch is released is shown. It is sectional drawing which shows the condition where the housing case and the gas cylinder fall together after being disengaged from the latch cam and the latch, and the fire is extinguished by ejecting a fire extinguishing gas.

Hereinafter, the illustrated embodiment in which the present invention is applied to a closed fire extinguishing space will be described. In FIGS. 1 to 7, reference numeral 1 denotes a box-shaped component provided on the side of an electrical inlet of a factory, office, or home. The switchboard box is openable and closable via a door (not shown), and has a current limiter 2 or a circuit breaker for restricting an input current used as a firing source, and a plurality of switches 3 on the main line. And a load (not shown) is connected to the branch circuit of the switch 3.

A fire detector 4 having a power source such as a dry battery that senses smoke or a predetermined heat is installed at an appropriate position of the distribution board box 1, and the detection signal S is transmitted to the distribution board box 1 via a signal line 4a. For example, a fire extinguisher that is a fire extinguisher gas injector of a simple fire extinguisher, and the fire extinguishing gas can be injected from the fire extinguisher 5 to a fire source.
In this case, it is also possible to attach a transceiver to the fire detector 4 and a drive motor, which will be described later, and to input these signals wirelessly.

The fire extinguishing device 5 includes two housing cases 6 made of synthetic resin and a sealed housing 7. The upper portion of the sealed housing 7 is fitted into a recessed hole 6 b in the lower portion of the housing case 6. While being connected with screws or the like, the upper housing case 6 or the sealed housing 7, in the embodiment, the housing case 6 is attached to the side wall.
The housing case 6 is formed in a quadrangular prism shape, and a deformed empty space 6a is formed in the housing case 6, and a drive motor 8 and a speed reducer 8a capable of forward and reverse rotation are accommodated in the upper portion of the space 6a. The upper part of the smashed housing 7 is fitted into the lower recessed hole 6b.

For example, a DC motor that can be driven by a power source such as a dry battery is used as the drive motor 8, and a controller 9 that controls forward / reverse rotation of the drive motor 8 is inserted into the power supply circuit. The direction of the armature current or field current of the driving motor 8 is changed through the operation of the driving motor 8 so that the driving motor 8 can be rotated forward and backward.
The controller 9 includes two limit switches for detecting the uppermost position and the lowermost position of a breaker unit, which will be described later, and these limit switches are connected in parallel to the drive circuit or power supply circuit of the drive motor 8 and alternately. It is possible to switch the current direction of the drive motor 8 with respect to the armature, for example, when detecting the displacement of each limit switch.

An output shaft 10 protrudes downward from the lower portion of the drive motor 8, a hexagonal hole-like engagement hole 11 is formed inside the output shaft 10, and a hexagonal shaft-like rotation is formed in the engagement hole 11. The shaft 12 is detachably connected.
In this case, the engagement hole 11 and the rotation shaft 12 are not limited to hexagonal shapes, but may be any shapes that can be engaged with each other, and the base of the output shaft 10 can be attached to and detached from the drive motor 8 or the speed reducer 8a. If connection is possible, the output shaft 10 corresponding to various connection shafts 12 can be selected.

On the other hand, the rupture housing 7 is formed in a rectangular column shape shorter than the housing case 6, and recessed holes 13 and 14 are formed at both ends thereof, and through holes 15 are communicated with the recessed holes 13 and 14. Yes.
Screw portions 16 and 17 are formed on the inner peripheral surfaces of the concave holes 13 and 14, and a screw shaft 19 of the breaking unit 18 is screwed to the screw portion 16, and carbon dioxide as a fire extinguishing gas is predetermined on the screw portion 17. The screw part 21 at the mouth of the gas cylinder 20 filled with pressure is screwed together.

In the figure, reference numeral 22 denotes a substantially trumpet-shaped injection hole opened on the peripheral surface of the intermediate portion of the severing housing 7, and a nozzle hole 23 provided in the back thereof communicates with the through-hole 15, It is installed toward the limiter 2 or the switch 3.
In this case, the nozzle hole 23 and the injection hole 22 shown in the figure can be opened in an appropriate direction according to the installation posture or the injection direction of the severing housing 7. In the figure, 24 is a sealing plate in which the mouth of the gas cylinder 20 is sealed, 25 is a seal packing disposed at the upper part of the concave hole 14, and its through hole 26 communicates with the through hole 15.

The breaking unit 18 is formed by processing a metal rod such as aluminum or steel, and the rotating shaft 12 projects from one end thereof, and a screw shaft 19 having a diameter larger than that of the rotating shaft 12 is formed at an intermediate portion. A boss 27 is formed below the screw shaft 19.
A broken shaft 28 is formed below the boss 27, a substantially bowl-shaped flange 30 projects from a reduced diameter portion 29 of the broken shaft 28, and a needle shaft 31 projects below the flange 30. Has been.

An O-ring 32 is attached to the reduced diameter portion 29, and a needle tube 33 made of, for example, a known spring pin protrudes from the needle shaft 31 so that a fire extinguishing gas can be ejected from the gap at the joint end portion. The lower end of the needle tube 33 is obliquely cut to form a pointed end portion 33a, and the pointed end portion 33a is pierced into the sealing plate 24 so that it can be broken.
In this case, since the needle tube 33 rotates synchronously with the output shaft 10 to break the sealing plate 24 as will be described later, the power required for the breaking is smaller than that for linearly breaking, and the driving mode is accordingly increased. -The power or capacity of the motor 8 can be reduced, and its size and cost can be reduced.

In the figure, 34 is a seal packing disposed at the bottom of the concave hole 13 and is disposed so as to be in contact with the lower surface of the boss 27, and a breaking shaft 28 is inserted into the through hole. Reference numeral 24 a denotes an opening edge of the sealed sealing plate 24.
An O-ring (not shown) is disposed at the lower end in the housing case 6 that engages with the upper end of the severing housing 7, and the O-ring and the upper end of the screw shaft 19 are in contact with or engaged with each other. To prevent biting into the housing case 6 when the screw shaft 19 moves upward, to prevent the drive motor 8 from seizing, and to move the screw shaft 19 again or again. It is desirable to carry out smoothly.

On the other hand, of the limit switches 36 and 37 equipped in the controller 9, the limit switch 36 is disposed immediately above the upper portion of the recessed hole 6 b and immediately below the lower end portion of the output shaft 10. The uppermost position of the breaking unit 18 can be detected.
In the case of the embodiment, the limit switch 36 has a holding contact, and when the operating piece is pressed against the upper surface of the screw shaft 19, the contact is closed and a current flows forward to the armature of the drive motor 8 in the forward direction. The breakage unit 18 can be moved downward by rolling.

After that, the limit switch 36 maintains the current direction with respect to the armature even when the pressing state of the operating piece is released, and the energization to the armature can be stopped after the limit switch 37 is turned on.
The limit switch 37 is installed at the lower end portion of the screw portion 16, and its operating piece is disposed so as to be pressed below the screw shaft 19 so that the lowest position of the breaking unit 18 can be detected.
In the case of the embodiment, the limit switch 37 is provided with a holding contact, and when the operating piece is pressed to the lower part of the screw shaft 19, the contact is closed and turned on, and a current is passed to the armature in the reverse direction to drive the drive motor 8. The breakage unit 18 can be moved upward by being driven in reverse.

After that, the limit switch 37 maintains the current to the armature even when the pressing state of the operating piece is released, and the drive motor 8 can be driven in reverse rotation. And, the breaking unit 18 reaches the uppermost position. When the position returns to the original position, the limit switch 36 detects this, switches the energization direction to the armature in place of the limit switch 37, and stops the driving of the driving motor 8.

In this case, as a forward / reverse means for the drive motor 8, a timer (not shown) is operated in the forward / reverse direction by operating a timer (not shown) for the time corresponding to the downward and upward movement time of the tearing unit 18 instead of the aforementioned limit switch. May be.
In that case, a timer is started at the uppermost position of the rupture unit 18 on the condition of the detection signal from the fire detector 4, the drive motor 8 is driven forward to move the rupture unit 18 downward, and the lowermost position is moved. The drive motor 8 may be moved up in reverse at times, and the drive of the drive motor 8 may be stopped when the uppermost position is moved, and a reset state in which the next signal is waited from the fire detector 4 may be formed.

The automatic fire extinguishing apparatus configured as described above requires the production of the housing case 6, the broken housing 7 and the broken unit 18. Of these, the housing case 6 is resin-molded into a prismatic shape having an irregularly shaped hollow chamber inside, and is molded in half.
The sealed housing 7 is resin-molded in a prismatic shape shorter than the housing case 6, formed with concave holes 13 and 14 at both ends thereof, communicated with each other through the through holes 15, and the concave holes 13 and 14. Threaded portions 16 and 17 are formed on the inner peripheral surface.
An injection hole 22 is formed in the middle part of the rupture housing 7, a nozzle hole 23 is formed in the inner part thereof, and the nozzle hole 23 communicates with the through hole 15.

Next, the breaking unit 18 is manufactured by mechanically or forming an aluminum or steel metal rod. That is, a hexagonal column-shaped connecting shaft 12 is formed at one end of the breaking unit 18, a needle shaft 31 is formed at the other end, a large-diameter screw shaft 19 and a boss 28, a reduced diameter portion 29, and a flange 30 are formed at the intermediate portion. Then, the O-ring 32 is attached to the reduced diameter portion 29, and the needle tube 33 having the tip portion 33a formed on the needle shaft 31 is press-fitted. This situation is as shown in FIG.

Further, a hexagonal engagement hole 11 is formed at the distal end portion of the metal output shaft 10, and the base end portion is configured to be attachable to the speed reducer 8a. In this case, if the engagement hole 11 that can be engaged with and detached from the connecting shaft 12 is formed at the base end portion of the output shaft 10, various connecting shafts 12 can be connected.

A reduction gear 8a equipped with a drive motor 8 and an output shaft 10 is accommodated in one of the two split pieces of the housing case 6 thus manufactured, and this is covered with the case 6 of the other split piece. Are connected with screws.
When the breaking unit 18 is assembled to the breaking housing 7, the seal packings 34 and 25 are accommodated in the bottoms of the recessed holes 13 and 14, and the limit switch 36 is disposed immediately above the recessed hole 6 b and the lower end of the screw part 16. 37 are connected in parallel to the drive circuit of the drive motor 8 and connected to the controller 9.

Thereafter, the breaking unit 18 is inserted into the concave hole 13, the reduced diameter portion 29, the flange 30, and the needle shaft 31 are inserted into the through hole 15, and the screw shaft 19 is screwed into the screw portion 16 to connect the connecting shaft 12. Protrudes from the sealed housing 7.
In this way, the upper end portion of the rupture housing 7 assembled with the rupture unit 18 is inserted into the concave hole 6b of the housing case 6, and the connecting shaft 12 is fitted into the engagement hole 11 of the output shaft 10, so that the housing The case 6 and the sealed housing 7 are connected with screws or the like. This situation is as shown in FIG.

Next, after connecting the housing case 6 and the sealed housing 7, the housing case 6 is mounted at a predetermined position in the distribution board box 1, in the embodiment, at a predetermined height of the side wall, and the injection hole 22 is current-limited. Installed toward the container 2 or switch 3.
In addition, a fire detector 4 capable of detecting heat or smoke is installed on the ceiling of the room where the distribution board box 1 is installed, and the fire detector 4 is connected to the controller 9 or the drive motor 8 via a signal line 4a. Connect to the drive circuit.

After this, the screw part 21 at the mouth of the gas cylinder 20 is screwed into the screw part 17 opened at the lower part of the broken housing 7 and tightened, the gas cylinder 20 is attached to the broken housing 7, and the fire extinguishing device 5 is installed. This situation is as shown in FIGS.

When such a fire extinguishing device 5 is installed, the power supply circuit of the drive motor 8 is normally turned on, and the controller 9 and the fire detector 4 are inserted in the power supply circuit, and the power supply circuit detects the fire. Waiting for the detection signal S from the device 4.
Therefore, when a fire does not occur in the room where the distribution board box 1 is installed, the fire detector 4 does not operate, the power circuit of the drive motor 8 is opened, and the drive motor 8 stops driving. is doing.

Under such circumstances, the breaking unit 18 is located at the uppermost position in the breaking housing 7, and the needle tube 33 at the lower end thereof is located immediately above the sealing plate 34.
Further, the upper end portion of the screw shaft 19 of the breaking unit 18 is positioned at the upper end of the concave hole 6b, and the operating piece (not shown) of the limit switch 36 is pressed, and the contact is closed to serve as the armature of the drive motor 8. On the other hand, current can be applied in the forward direction.
Further, the limit switch 37 installed at the lower end portion of the screw portion 16 in the rupture housing 7 has an operating piece (not shown) separated from the lower end portion of the screw shaft 19 to open the contact, and the drive motor 8 to The connection to the armature is interrupted. This situation is as shown in FIGS.

Under such circumstances, for example, when the current limiter 2 ignites, the fire detector 4 operates by detecting heat or smoke, and the detection signal S is input to the power supply circuit or controller 9 of the drive motor 8. The current flows in the forward direction through the armature of the drive motor 8 and the drive motor 8 is driven to rotate forward.
For this reason, the output shaft 10 of the drive motor 8 rotates in the forward direction, the power is transmitted to the connecting shaft 12 and rotates in synchronization with the output shaft 10, and the screw shaft 19 is guided to the screw portion 16 while rotating. The tearing unit 18 moves together.

When the tearing unit 18 moves down in this way, the tip end portion 33a of the needle tube 33 pierces the sealing plate 34, and further moves down so that the breaking unit 18 reaches the lowest position and seals the sealing plate 34. This situation is as shown in FIG.
For this reason, the fire extinguishing gas filled in the gas cylinder 20 is jetted to the lower part of the through-hole 15 from between the joining end portions of the peripheral surface of the needle tube 33, jetted to the outside from the nozzle hole 23 through the jet hole 22, and jetted to the fire source Is done.

At that time, since the needle tube 33 rotates in synchronization with the breaking unit 18 and breaks the tip 33a in a conical state, the sealing plate 34 is compared with the case where the tip 33a moves linearly and breaks. The reaction force or tearing force from is reduced, and it is easily and smoothly broken. Accordingly, the power required for the breakage is reduced, the consumption of the battery is reduced, and the driving motor 8 can be reduced in capacity or reduced in size and weight.

Thus, when the breaking unit 18 reaches the lowest position, the operating piece of the limit switch 37 is pressed against the lower end portion of the screw portion 16 to close the contact, and the energization circuit for the armature of the drive motor 8 is connected to the limit switch 36. To limit switch 37.
For this reason, the direction of the current with respect to the armature is switched, the current flows through the armature in the opposite direction to the above, and the drive motor 8 is reversed.

When the drive motor 8 rotates in the reverse direction, the power is transmitted from the output shaft 10 to the connecting shaft 12, and the screw shaft 19 integral with the connecting shaft 12 is screwed into the screw portion 16 and rotates upward. The tearing unit 18 moves along with this.
For this reason, the pointed end 33a of the needle tube 33 is pulled out from the sealing plate 34, and the fire extinguishing gas is ejected vigorously from the opening of the breakage, which is ejected to the outside from the nozzle hole 23 through the injection hole 22, It is injected into the limiter 2 to extinguish the fire. This situation is as shown in FIG.
In this case, since the inside of the distribution board box 1 is maintained in a substantially airtight state, the fire extinguishing action of carbon dioxide, which is a fire extinguishing gas, effectively acts to promote fire extinguishing, while the filling amount of the fire fighting gas in the gas cylinder 20 is Since it is a small amount, there is no influence on the human body, and the problem of the influence on the human body is avoided by avoiding leakage of carbon dioxide to the outside.

The lower end portion of the screw shaft 19 is moved by the upward movement of the breaking unit 18 and the pressing of the operating piece of the limit switch 37 is released, but the closed state of the contact of the limit switch 37 is maintained, and the drive motor 8 continues to drive in reverse.
Thus, when the breaking unit 18 continues to move upward and reaches its uppermost position, the operating piece of the limit switch 36 is pressed against the upper end of the screw shaft 19 to return to the original position, and the contact of the limit switch 36 is opened. Then, the drive motor 8 stops driving.

In this way, after the fire has occurred, the fire detector 4 detects the fire, the gas cylinder 20 is automatically sealed, the fire extinguishing gas is injected to the fire source, the fire is extinguished, and after the fire is extinguished, the sealing unit 18 automatically Return to the original position and wait for the next fire extinguishing.
At that time, since the carbon dioxide in the gas cylinder 20 is consumed by extinguishing the fire, the used gas cylinder 20 is removed after the fire is extinguished, and a new gas cylinder 20 filled with carbon dioxide is installed.

As shown in FIG. 5A, the above-described breaking unit 18 integrally includes the connecting shaft 12, the screw shaft 19, the breaking shaft 28, and the needle shaft 31, but FIG. In this manner, the connecting shaft 12 and the screw shaft 19, the boss 27, the sealing shaft 28, and the needle shaft 31 can be separated.
In this case, these are arranged coaxially, the lower end of the screw shaft 19 is arranged on the upper surface of the boss 27, and a spring 35 is inserted between the seat packing 34 and the boss 27, and the spring 35 is inserted. The boss 27, the breaking shaft 28, and the needle shaft 31 are urged upward by the elasticity of the boss 27, and the boss 27 is disposed so as to be able to contact the lower end of the screw shaft 19.

With this configuration, the boss 27 is disposed in contact with the lower end of the screw shaft 19, and when broken, the boss 27 is pressed by the rotational and downward movement of the screw shaft 19, and the needle tube 31 is linearly moved. The needle tube 31 can be prevented from being twisted at the time of breaking. On the other hand, when the breaking unit 18 moves upward, the boss 27 can follow the upward displacement of the screw shaft 19 via the spring 35.

8 to 32 show other embodiments of the present invention, and the same reference numerals are given to the components corresponding to the above-described embodiments.
Among these, FIG. 8 shows a second embodiment of the present invention, in which the drive motor 8 to the output shaft 10, the breaking housing 7 to the breaking unit 18 and the gas cylinder 20 are arranged coaxially. Instead, the drive motor 8 through the output shaft 10 and the rupture housing 7 through the rupture unit 18 and the gas cylinder 20 are juxtaposed side by side, eliminating the long structure up and down, and making it compact. Yes.

That is, in this embodiment, the housing case 6 is formed to be short in the vertical direction, and the hollow chamber 38 is formed in the upper part thereof. An output shaft 10 of a drive motor 8 that can be rotated forward and backward is disposed on one side of the hollow chamber 38, and an upper end portion of the output shaft 10 is rotatably supported on an upper portion of the housing case 6.
The drive motor 8 can be rotated forward and backward via a timer. When the movable nut, which will be described later, is at the uppermost position, the timer is started on the condition of a detection signal from the fire alarm 4 and the drive motor 8 is rotated forward. The movable nut 39 is moved downward, the drive motor 8 is reversely rotated when the lowermost position is moved, and the movable nut 39 is moved upward, and the drive motor 8 is stopped when the uppermost position is moved. The signal from 4 is waited.

In this embodiment, the output shaft 10 is constituted by a screw shaft, and a movable nut 39 is screwed onto the screw shaft 10 so as to be movable up and down. A slit 40 is formed in the longitudinal direction on the peripheral surface of the movable nut 39, and one end of a connecting piece 41 is connected to the slit 40 via a pin 42 so as to be swingable.

The other end of the connecting piece 41 is disposed on the other side of the hollow chamber 38, and a pin 44 is inserted into a long hole 43 formed in the other end, and the other end of the connecting piece 41 is shaken via the pin 44. It is linked movably.
An upper portion of the rupture housing 7 projects from the other side of the hollow chamber 38, a cap 45 is fixed to the concave hole 13 of the housing 7, and the large diameter portion 28 a of the rupture shaft 28 can be engaged with the cap 45. Is arranged.

A spring 46 is inserted between the large-diameter portion 28 a and the bottom of the concave hole 13, and the breaking shaft 28 is urged upward through the elasticity of the spring 46 to connect the upper end portion of the breaking shaft 28. It arrange | positions so that engagement with the piece 41 is possible. In the figure, 47 is a cover for closing the other side of the hollow chamber 38.

In this embodiment, since the housing case 6, the sealed housing 7 and the gas cylinder 20 are arranged on different axes, it is possible to avoid the lengthening of the housing case 6 and to reduce its size and installation space. .
In the above embodiment, the movable nut 39 is always positioned at the upper end of the output shaft 10, the connecting piece 41 is placed in a right-down state as shown in the figure, and the drive motor 8 waits for a signal from the fire detector 4. Then stop.

Inside the rupture housing 7, the rupture shaft 28 is urged upward by a spring 46, the upper end portion of the rupture shaft 28 is engaged with the connecting piece 41, and the pointed end portion 33 a of the needle tube 33 is formed on the sealing plate 24. Located directly above.
Under such circumstances, a fire occurs in the distribution board box 1, which is detected by the fire detector 4, and when the signal S is input to the drive motor 8, the drive motor 8 Forward rotation and the output shaft 10 rotate synchronously.
For this reason, the movable nut 39 moves down along the output shaft 10, the connecting piece 41 pushes down the upper end portion of the breaking shaft 28, and the tip 33 a of the needle tube 33 moves the sealing plate 24 when the movable nut 39 moves to the lowest position. Pierce and seal.

As a result, the fire-extinguishing gas filled in the gas cylinder 20 is guided to the needle tube 33, and the fire-extinguishing gas flows out from the joint portion of the needle tube 33 to the through hole 15 and is ejected from the nozzle hole 23, and is injected to the fire source through the injection hole 22. Fire extinguisher.
After the movable nut 39 moves to the lowest position, the timer operates to reverse the drive motor 8, the output shaft 10 reverses, and the movable nut 39 moves upward.

As the movable nut 39 moves upward, the broken shaft 28 is pushed back by the spring 46, and when the movable nut 39 moves to the uppermost position, the drive motor 8 stops driving and the next stage from the fire detector 4 is reached. Wait for a signal.
Thereafter, the gas cylinder 20 that has consumed the fire extinguishing gas is removed from the sealed housing 7, and a new gas cylinder 20 is mounted.

FIG. 9 shows a third embodiment of the present invention. In this embodiment, instead of breaking a single gas cylinder 20, two gas cylinders 20 are arranged facing each other and simultaneously broken to reliably and efficiently extinguish the fire. I am doing so.
That is, in this embodiment, the hexagonal pivot shaft 4 is detachably connected to the engagement hole 11 of the output shaft 10, and the tip of the pivot shaft 48 is formed in a cone or a truncated cone shape. A drive gear 49 is formed on the surface.

On the other hand, a square hole-shaped connecting hole 50 is formed orthogonally at the front end of the housing case 6, and the two smashed housings 7 are spaced apart from each other in the connecting hole 50 and fixed in place. Has been.
Screw shafts 19, 19 of the severing units 18, 18 are movably screwed into the screw portions 16, 16 of the concave holes 13, 13 of the severing housings 7, 7. 12 protrudes from the concave holes 13, 13, and the shaft ends are spaced apart from each other.

The bevel gears 51 and 52 are attached to the tips of the rotating shafts 12 and 12, and the bevel gears 51 and 52 mesh with the drive gear 48. The bevel gears 51 and 52 are formed with hexagonal engagement holes in the center, and the rotation shafts 12 and 12 are slidably fitted into the engagement holes so that the breaking units 18 and 18 can move close to and away from each other. I have to.

That is, the bevel gears 51 and 52 are configured to be rotatable in opposite directions to each other via the drive gear 49, and the rotating shafts 12 and 12 fitted in the engaging holes are configured to be movable toward and away from each other. Then, the tearing units 18 and 18 are moved to pierce the needle tubes 33 and 33 into the sealing plate 24 so that the tearing can be performed. In the figure, reference numerals 53 and 54 denote spacers interposed between the sealed housings 7 and 7 and the bevel gears 51 and 52.
In FIG. 9, the nozzle hole 23 and the injection hole 22 are opened downward. However, the nozzle hole 23 and the injection hole 22 may be opened to the side of the sealed housings 7 and 7 according to the installation posture or the injection direction.

In this embodiment, the housing case 6, the sealed housing 7 and the gas cylinder 20 are arranged orthogonally, and the two nozzle holes 23 or the injection holes 22 are spaced apart and arranged on the left and right or top and bottom.
Further, the breaking units 18 and 18 are coaxially arranged, the end portions of the rotating shafts 12 and 12 are arranged close to each other, and the bevel gears 51 and 52 mounted on the shaft ends mesh with the drive gear 49. The drive motor 8 for driving the gear 49 is stopped while waiting for a signal from the fire detector 4.
Inside the sealed housings 7, 7, the screw shafts 19, 19 are located on the opening side of the concave holes 13, 13, and the pointed ends 33 a of the needle tubes 33 are located close to the inside of the sealing plate 24. .

Under such circumstances, a fire occurs in the distribution board box 1, which is detected by the fire detector 4, and when the signal S is input to the drive motor 8, the drive motor 8 Driven forward, the output shaft 10 moves and the drive gear 49 rotates synchronously.
For this reason, the bevel gears 51 and 52 meshing with the drive gear 49 rotate in opposite directions to transmit their powers to the rotary shafts 12 and 12, and the breaker units 18 and 18 move in unison with each other. The tip end 33a of each needle tube 33 breaks close to the sealing plate 24 and seals.
In this case, since each needle tube 33 is rotated and broken, the needle tube 33 is broken more smoothly and quickly than when the needle tube 33 is moved linearly and broken, and the power required for breaking can be reduced.

As a result, the fire extinguishing gas filled in each gas cylinder 20 is guided to the needle tube 33, and the fire extinguishing gas flows out from the joint portion of the needle tube 33 to the through hole 15 and is simultaneously ejected from the nozzle hole 23, through the injection hole 22. The fire is extinguished.
In this case, the fire extinguishing gas is simultaneously ejected from the two nozzle holes 23 and is injected to the fire source and its surroundings, so that the fire can be surely and efficiently extinguished.

Thus, after the smashing units 18 and 18 are moved to the outermost side, the timer is activated and the drive motor 8 is reversed, the output shaft 10 is reversed and the smashing units 18 and 18 are rotated in the opposite directions. While moving closer.
When the breaker units 18 and 18 approach and return to the original position, the drive motor 8 stops driving and waits for the next signal from the fire detector 4.
Thereafter, the gas cylinders 20, 20 that have consumed the fire extinguishing gas are removed from the sealed housings 7, 7, and new gas cylinders 20, 20 are mounted.

FIG. 10 shows a fourth embodiment of the present invention. In this embodiment, instead of arranging the two gas cylinders 20 facing each other, the two gas cylinders 20 are arranged in parallel and simultaneously broken to simplify the configuration. The fire is extinguished reliably and efficiently.

That is, in this embodiment, a single broken housing 7 is fixed to the side wall of the distribution board box 1, and the concave holes 13 and 14 and the through holes 15 are formed on both sides of the broken housing 7. The nozzle hole 23 and the injection hole 22 are communicated with each other, the breaking unit 18 is inserted into each concave hole 13 and the through hole 15, and the needle tube 33 at the tip of each breaking shaft 28 is disposed immediately above the sealing plate 24. Yes.

Gears 55 and 56 are slidably mounted on the connecting shafts 12 and 12 of the respective rupture units 18 protruding from the rupture housing 7. In the embodiment, the connecting shafts 12 and 12 are slidable with respect to the gears 55 and 56. The drive gear 57 is disposed between the gears 55 and 56 and meshed therewith, and the output shaft 10 of the drive motor 8 is linked to the drive gear 57. In the figure, 58 is a gear case.
In addition, although the illustrated nozzle hole 23 and the injection hole 22 are opened downward, it is also possible to open to the side of the broken housings 7 and 7 according to the installation posture or the injection direction.

In this embodiment, the housing case 6 is omitted, and the two severing units 18 and the gas cylinder 20 are attached to the single severing housing 7, so that the number of parts is reduced and the configuration is simplified. Can be made.
Moreover, since the two gas cylinders 20 are arranged in parallel, the installation space can be made compact compared to the case where they are arranged opposite to each other.

The breaking units 18 and 18 of this embodiment are disposed on both sides of the breaking housing 7, and these are always placed at the uppermost position, and the ends of the connecting shafts 12 and 12 protrude above the gears 55 and 56. ing.
The gears 55 and 56 mesh with each other via a drive gear 57, and the drive motor 8 linked to the drive gear 57 is stopped waiting for a signal from the fire detector 4.
On the other hand, inside the sealed housings 7, 7, the screw shafts 19, 19 are screwed into the screw parts 16, 16 of the concave holes 13, 13, and the pointed ends 33 a of the needle tubes 33 are positioned directly above the sealing plate 24. ing.

Under such circumstances, a fire occurs in the distribution board box 1, which is detected by the fire detector 4, and when the signal S is input to the drive motor 8, the drive motor 8 Driven forward, the output shaft 10 moves in synchronization therewith, and the drive gear 57 rotates synchronously.
For this reason, the gears 55 and 56 meshing with the drive gear 57 rotate in the same direction and transmit their power to the hexagonal shafts 12 and 12, and the breaker units 18 and 18 move together. Then, the screw shaft 19 moves down the screw portion 16, and the tip end portion 33 a of each needle tube 33 pierces the sealing plate 24 and breaks it.
In this case, since each needle tube 33 rotates in synchronism with the breaking unit 18 and breaks, the needle tube 33 is broken more smoothly and quickly than the case where the needle tube 33 is moved linearly and broken. Can be reduced.

As a result, the fire extinguishing gas filled in each gas cylinder 20 is guided to the needle tube 33, flows out from the joint portion to the through hole 15, and is simultaneously ejected from each nozzle hole 23, and is ejected from the ejection hole 22 to the fire source to extinguish the fire. .
In this way, the fire extinguishing gas is simultaneously ejected from the two nozzle holes 23 and is ejected to the fire source and its surroundings, so that the fire can be extinguished reliably and efficiently.

Thus, after the breakage units 18 and 18 are moved to the lowest position, the timer is activated to reverse the drive motor 8, and the output shaft 10 is synchronously rotated to engage with the drive gear 49. 56 rotates in the opposite direction to that described above, and the breakage units 18 and 18 rotate in the opposite direction as described above.
For this reason, when the screw shaft 19 moves up the screw portion 16 and the breaking units 18 and 18 are moved to the original positions, the timer is activated and the driving motor 8 stops driving.
Thereafter, the drive motor 8 waits for the next signal from the fire detector 4, removes the gas cylinders 20, 20 that have consumed the fire extinguishing gas from the sealed housings 7, 7, and installs new gas cylinders 20, 20.

FIGS. 11 to 13 show a fifth embodiment of the present invention. In this embodiment, instead of moving the breaking unit 18 by the power of the drive motor 8, the housing case 6 or the breaking housing 7 is used. The gas cylinder 20 is freely dropped, and the rupture housing 7 and the rupture unit 18 are moved relative to each other for rupture.
That is, in this embodiment, the guide column 61 is vertically installed between the ceiling portion 59 and the floor surface 60 in the distribution board box 1, and the housing case 6 is slidably attached to the guide column 61. .

The upper end portion of the housing case 6 is formed so as to be able to contact the ceiling portion 59, and a seal plate 62 is fixed to the bottom portion of the empty space 6 a with screws 63, and the screw shaft of the breaking shaft 28 is fixed to the seal plate 62. The end is fixed via a nut 64.
The breaking shaft 28 is arranged perpendicular to the hollow chamber 65 inside the housing case 6, an O-ring 32 is attached to the lower peripheral surface thereof, and a needle tube 33 is press-fitted to the lower end portion.

A step portion 66 is formed at an intermediate portion of the hollow chamber 65, and the flange 7 a of the rupture housing 7 is arranged to be engageable with the step portion 66, and the rupture shaft 28 is inserted into the through hole 15 of the rupture housing 7. It is slidably inserted.
A spring 67 is inserted between the upper surface of the rupture housing 7 and the seal plate 62, and the rupture housing 7 is urged movably downward through the elasticity of the spring 67.
In the figure, reference numeral 68 denotes an injection guide which opens to the side of the housing case 6, and can communicate with the injection hole 22, the nozzle hole 23 and the through hole 15.

A locking hole 69 is formed on one side of the upper end of the housing case 6, and a piston rod 71 that operates linearly as an output shaft 10 of an electromagnetic valve 70 that is an actuator is engaged with the locking hole 69. Inserted as possible.
The electromagnetic valve 70 is attached to a fixed plate 72 protruding from a ceiling portion 59, and a piston rod 71 is slidably inserted into a through hole 73 thereof.

The solenoid valve 70 is controlled by the detection signal S of the fire detector 4, and is normally extended by inserting the piston rod 71 into the locking hole 69 to support the housing case 6, while receiving the detection signal S. The piston rod 71 is reduced and pulled out from the locking hole 69 so that the housing case 6 can be dropped along the guide column 61 together with the broken housing 7 and the gas cylinder 20.

A contact plate 74 that can contact and repel the bottom of the gas cylinder 20 is installed below the housing case 6. In the embodiment, a metal contact plate 74 is used, and the bottom of the gas cylinder 20 is attached to the corresponding contact plate 74. And the gas cylinder 20 is repelled and pushed into the housing case 6, the broken housing 7 is pushed up, and the sealing plate 24 is pierced into the needle tube 33 so that it can be broken.
In the figure, reference numeral 75 denotes a cover plate for closing the empty space 6a.

In this embodiment, the housing case 6 is always installed at the uppermost position, and the piston rod 47 of the electromagnetic valve 46 is engaged with the locking hole 69 at the upper end portion thereof to hold the uppermost position of the housing case 6. .
Further, the flange 7 a of the rupture housing 7 is engaged with the step portion 66 in the housing case 6, and a spring 67 is inserted between the rupture housing 7 and the seal plate 62. The rupture housing 7 is biased downward.

The screw portion 21 of the gas cylinder 20 is screwed into the screw portion 17 of the rupture housing 7, the gas bomb 20 is suspended directly under the housing case 6, and the needle tube 33 at the lower end of the rupture unit 18 is directly above the sealing plate 24. Is located. This situation is as shown in FIG.

Under such circumstances, when a fire occurs in the distribution board box 1 and the fire detector 4 senses this and the signal S is input to the solenoid valve 70, the piston rod 47 contracts and engages. The housing case 6 is pulled out from the stop hole 69, and the broken housing 7 that is hooked inside the housing case 6 and the gas cylinder 20 are dropped together along the guide column 61. This situation is as shown in FIG.

After the gas cylinder 20 is dropped, its bottom collides with the contact plate 74 and stops. On the other hand, the housing case 6 slightly falls after the gas cylinder 20 is dropped, and the spring 67 is pressed and shrunk so that the upper portion of the hollow chamber 65 is sealed. The sealing plate 24 of the gas cylinder 20 is engaged with the upper end portion of the housing 7, and as a result, the sealing plate 24 of the gas cylinder 20 approaches and approaches the pointed end portion 33a of the needle tube 33 and is sealed.

When the sealing plate 24 is ruptured in this way, the fire extinguishing gas in the gas cylinder 20 is jetted from the joint end of the needle tube 33 to the through hole 15 and jetted to the outside from the nozzle hole 33 through the jet hole 22 and the jet guide 68. Extinguishes fire when sprayed.
Then, after the gas cylinder 20 is dropped or broken, the sealing shaft 28 is pushed up by the extinguishing gas jet pressure and the spring 67, and the seal plate 62 moves along with this, and the needle tube 33 is pulled out from the sealing plate 24. For this reason, the fire extinguishing gas is ejected from the opening hole 22 through the nozzle hole 23 toward the fire source and continues to extinguish the fire.

After the fire is extinguished, the spent gas cylinder 20 is removed from the sealed housing 7, a new gas cylinder 20 is loaded, the housing case 6 and the gas cylinder 20 are pushed up along the guide column 61, and the housing case 6 is installed at the uppermost position. 70 is operated to extend the piston rod 71 to engage with the locking hole 69, hold the housing case 6 and the gas cylinder 20 at the uppermost position, and wait for the next operation.

Thus, in this embodiment, the housing case 6 and the gas cylinder 20 and the like are held upward, the electromagnetic valve 70 is operated by the detection signal S from the fire alarm 4, and the housing case 6 and the gas cylinder 20 and the like are freely dropped, It is made to break by the falling energy.
In this case, the gas cylinders 20 are suspended from the housing case 6 and dropped. However, the upper and lower positions of the gas cylinders 20 may be reversed, and the housing case 6 may collide with the contact plate 74. Due to the weight, the lowering of the breaking housing 7 is promoted, and the breaking is facilitated.

For example, if a drive unit (described later) is installed on the fixed plate 72, the detection signal S is received by the unit, and the operation of the electromagnetic valve 70 is controlled, the configuration becomes simple.
Further, the breaking state by the needle tube 33 is detected by, for example, a limit switch provided on the inner surface of the hollow chamber 65, and the operation piece is disposed so as to be engageable with the upper end surface of the breaking housing 7. If the alarm is installed in the fire extinguishing gas injector or its surroundings or in a control room, which will be described later, separated from the fire extinguishing space, the distribution panel box 1 or the control room as the fire extinguishing space The operator can be notified of the breakage, the fact of the breakage can be notified, and the necessary measures such as evacuation can be recommended.
In this case, since the filling amount of carbon dioxide in the gas cylinder 20 is small, there is no influence on the human body and there is no need to evacuate from the distribution board box 1 by the above-mentioned breaking.

14 and 15 show a sixth embodiment of the present invention, which is sealed using the elasticity of the spring.
That is, in this embodiment, a case scrubber 76 is fixed to the upper part of a prismatic housing case 6 formed in half, and a shaft cylinder part 77 protrudes from the upper part, and approximately 1/3 of the shaft cylinder part 77 is provided. An end face cam 78 is formed in a helical shape on the peripheral surface, and an operation handle 79 is slidable along the cam 78.
In the figure, reference numerals 80 and 81 denote locking walls formed at the lowermost and uppermost positions of the end face cam 78 and are formed so as to be engageable with the operation handle 79.

A through hole 82 is formed at the center of the case cover 76 and the shaft cylinder portion 77, and a center shaft 83 is inserted into the through hole 82 so as to be rotatable and slidable. One end of the operation handle 79 is fixed horizontally.
A neck portion 84 is formed at the lower end of the center shaft 83, and a pair of locking pins 85 are attached to the neck portion 84, and are connected to the slide block 86 via the locking pins 85.

The slide block 86 is formed in a prismatic shape, and the block 86 is slidably inserted into a square hole 87 in the housing case 6.
A spring 88 is inserted between the slide block 86 and the case cover 76, and the elasticity of the spring 88 urges the slide block 86 and the center shaft 83 to move downward.

A guide groove 89 is formed on the side surface of the slide block 86 in the vertical direction, and a slightly larger diameter through hole 90 is formed at the lower end thereof. A rotation shaft 91 linked to a motor (not shown) rotates in the through hole 90. It is inserted movably.
The cross-section of the pivot shaft 91 is formed in a substantially horizontally long rectangle as shown in the figure, the long side portion is rotatably inserted into the through hole 90, and the length thereof is slightly longer than the guide groove 89, The short side portion is formed so as to be slightly narrower than the guide groove 89 and is movable along the guide groove 89.

The motor is fixed to the housing case 6 and stops driving at all times, and can be rotated forward or backward by a detection signal S from the fire detector 4. The engagement with the rotating shaft 91 is released, the slide block 86 is dropped with vigor, and the breaking unit 18 is moved along with the slide block 86 so as to be able to be broken through the needle tube 33.

That is, the breaking unit 18 projects from the lower end of the slide block 86, and the breaking housing 7 is fixed to the housing case 6 immediately below the slide block 86.
A severing unit 18 is slidably inserted into the through-hole 15 of the severing housing 7 so as to be severable via the needle tube 33 when the slide block 86 moves downward.

In this embodiment, a housing case 6 is installed on the side wall in the distribution board box 1, and a motor linked to the rotating shaft 91 is installed on the peripheral surface of the housing case 6.
Inside the installed housing case 6, the slide block 86 is placed at its lowest position, and a rotating shaft 91 is inserted into the through hole 90 as the output shaft 10 of the motor that is an actuator. Engaging with the opening edge of the guide groove 89, the slide block 86 is farthest from the case scuba 76, and the spring 88 is placed in a substantially free length state.
An operation handle 79 is located at the upper end surface of the case cover 76, which is the lowest position of the end face cam 78, and the tip end of the operation handle 79 protrudes forward of the housing case 6.

Thereafter, the operation handle 79 is held, and when the operation handle 79 is rotated clockwise about the center shaft 83, the operation handle 79 moves upward along the end face cam 78, and the center shaft 83 is moved to the operation handle. The slide block 86 moves together with the upward movement displacement of 79, and the spring 88 is pressed and contracted to act on the slide block 86, thereby pressing the block 86 downward.

In this case, the operation handle 79 is rotated approximately 90 ° and stopped when it comes into contact with the locking wall 81, and the gas cylinder 20 is loaded at the lower end of the severing housing 7 while maintaining this state. The rotation shaft 91 is engaged with the opening edge of the guide groove 89 to prevent the slide block 86 from moving downward to ensure safety.
Thus, the gas cylinder 20 is suspended from the lower end of the housing case 6, and the needle tube 33 of the breaking unit 18 is located immediately above the sealing plate 24. This situation is as shown in FIG.

Under such circumstances, a fire occurs in the distribution board box 1, and this is detected by the fire detector 4, and when the signal S is input to the motor (not shown), the motor is detected. Is rotated by 90 °, and the rotation shaft 91 is moved in association therewith to release the engagement with the guide groove 89.
For this reason, the slide block 86 falls along the square hole 87, and the elasticity of the spring 88 is added to the slide block 86, so that the slide block 86 falls down vigorously. Pierce vigorously and seal.

When the sealing plate 24 is broken in this way, the fire extinguishing gas in the gas cylinder 20 is jetted from the joint end portion of the needle tube 33 to the through hole 15, jetted to the outside from the nozzle hole 33 through the jet hole 22, and blown to the fire source. Extinguish. This situation is as shown in FIG.

After extinguishing the fire, the spent gas cylinder 20 is removed from the sealed housing 7 and a new gas cylinder 20 is loaded. Further, the operation handle 79 is rotated to pull up the center shaft 83 and the slide block 86, the motor is rotated 90 ° while maintaining the lifted position, and the rotation shaft 91 is moved to the opening of the guide groove 89. Engage to prevent the slide block 86 from moving downward and ensure safety.
Thus, in this embodiment, the needle tube 33 is surely broken using the elasticity of the spring 88 and the gravity action of the slide block 86.

FIG. 16 shows a seventh embodiment of the present invention, in which the upper end portion of the housing case 6 is pressed against the ceiling portion 59, while an electromagnetic valve is attached to the bottom portion of the gas cylinder 20 attached to the lower end of the housing case 6. 70 piston rods 71 are pressed.
Then, a fire occurs in the distribution board box 1 and the fire detector 4 senses this, and inputs the signal S to the electromagnetic valve 70 to extend the piston rod 71 of the electromagnetic valve 70, and the gas cylinder 20 Is pushed up to push the sealed housing 7 into the housing case 6, and the needle tube 33 is pierced into the sealing plate 24 to be sealed.

After the breakage, the fire extinguishing gas flows out from the joint portion of the needle tube 33 to the through hole 15 and is blown from the nozzle hole 23 to the fire source through the ejection hole 22 to extinguish the fire.
As described above, in this embodiment, the actuator such as the electromagnetic valve 70 is used for easy and inexpensive tearing.

FIGS. 17 to 20 show an eighth embodiment of the present invention. This embodiment relates to an application of the first embodiment. A receiver of the fire detector 4 and a drive motor are provided on the upper part of the rupture housing 7. 8 and a dry battery 92 that is a power source thereof, and a drive unit U that includes a controller 9 that controls the operation thereof.
That is, the drive motor 8, the speed reducer 8a, and the output shaft 10 are accommodated in the lower half of the housing case 6 to be mounted on the upper end of the rupture housing 7, and the direct current is accommodated in the upper half of the case 6. A battery 92 serving as a power source and a controller 9 having a receiving function including an IC chip and a wiring board are accommodated.

In the figure, 93 is a connection terminal of the dry battery 92, 94 is a connector, 95 is a lead wire for connecting the connection terminal 93 and the substrate, 96 is a lead wire for connecting the substrate and the connector 94, 97 is A lead wire connecting the connector 94 and the drive motor 8 supplies power to the drive motor 8 through the controller 9 for a predetermined time via the controller 9, and the motor 8 is positively connected for a predetermined time. It is possible to reverse. In the figure, reference numeral 98 denotes a slide cover for opening and closing the housing case 6.

The cross section of the output shaft 10 is formed in a substantially meniscus shape, and the output shaft 10 is fitted to a shaft tube portion 99 constituting the connecting shaft 12 integrated with the screw shaft 19. A fitting hole 100 having a substantially semicircular cross section that can be fitted to the output shaft 10 is formed in the shaft tube portion 99, and a flange 101 protrudes from the peripheral surface of the upper end portion, which will be described later. The operating pieces of the first and second limit switches are arranged to be engageable.
An aluminum cylinder tube 102 is fixed to the concave hole 13 via a pin 103, and a female screw portion 104 that can be screwed with the screw shaft 19 is formed on the inner surface thereof.

The screw shaft 19 and the breaking shaft 28 are separated from each other, and their end faces are coaxially opposed to each other, and concave spherical surfaces 105 and 106 are formed on these end surfaces. A ball 107 is rotatably inserted to reduce friction when the opposed end surfaces are brought into direct contact with each other, thereby preventing overload of the drive motor 8 and consumption of the dry battery 92.
In the figure, reference numeral 108 denotes a set spring interposed between the recessed hole 13 and the boss 27, and urges the breaking shaft 28 to be movable upward by its elasticity. Reference numeral 109 denotes an O-ring disposed in an annular groove immediately above the upper end of the recessed hole 6b. The O-ring is sandwiched between the upper ends of the cylinder tube 102 so that the inner periphery thereof can be engaged with the outer periphery of the upper end of the screw shaft 19. It is arranged so that it can be prevented from biting into the annular groove when the screw shaft 19 is moved upward.

The limit switches 36 and 37 are installed in the vertical position so that the flange 101 in the lower part of the housing case 6 faces the vertical movement region, and the operating pieces 36a and 37a can be engaged with the outer periphery of the flange 101. The displacement detection signal of the flange 101 can be input to the controller 9.
That is, a switch space 110 is provided in the moving area of the flange 101, the limit switches 36 and 37 are installed in the space 110, and when the breakage unit 18 is reset and broken when the flange 101 is displaced. And the detection signal can be transmitted to the controller 9.
In the figure, reference numerals 111 and 112 denote lead wires of limit switches 36 and 37, which are wired in a wiring groove 113 provided in the housing case 6 and connected to the controller 9.

The operation piece 36a of the limit switch 36 is normally engaged with the flange 101 at the uppermost position to detect the reset state of the breakage unit 18, and outputs an OFF signal from the controller 9 to the drive motor 8 to cause a fire. The detection signal S of the detector 4 is input to the controller 9, and an ON signal is output from the controller 9 to the drive motor 8, and the motor 8 is driven to lower the screw shaft 9 or the shaft tube portion 99. When moved, the engagement with the flange 101 can be released.
On the other hand, the operating piece 37a of the limit switch 37 is normally disengaged from the flange 101, and when the flange 101 is moved to the lowest position, it engages with the flange 101 and breaks the breaker unit 18. The state is detected, the broken signal Sb is sent to the controller 9, the drive motor 8 is stopped, and after the stop, the drive motor 8 is driven in reverse to move the screw shaft 9 or the shaft tube portion 99 upward. It is possible.

Further, the controller 9 sends an operation signal to the alarm devices 114 and 115 when the seal signal Sb is inputted, so that the alarm devices 114 and 115 can be operated. Different alarm sounds can be output.
Among them, the alarm device 114 is installed at an appropriate position on the surface of the housing case 6 to enable alarms in the distribution board box 1, and the alarm device 115 is installed in an office, factory, etc. separated from the distribution board box 1. It is installed at an appropriate place in the provided management room 116 so that the management room 116 can be alarmed.
In addition, in the figure, 117 is an alarm device provided at an appropriate place in the control room 116, and can be alarmed at the same time as the fire detector 4, and 118 is a synthetic resin cylinder cap attached to the bottom of the gas cylinder 20. .

In this embodiment, a drive unit U is installed in a housing case 6, a receiver of the fire detector 4, a drive motor 8, a dry battery 92 as a drive source thereof, and a controller for controlling them. 9, which allows the gas cylinder 20 to be sealed and controlled.
Then, the alarms 114 and 115 are operated in accordance with the time of the breakage, an alarm is sounded, the fact of the breakage is notified to the distribution board box 1 and the management room 116, and necessary measures such as evacuation are provided to the operator. Is recommended. In this case, since the filling amount of carbon dioxide in the gas cylinder 20 is small, there is no need to evacuate from the distribution board box 1 by the above-mentioned breaking.

On the other hand, before the fire detection of this embodiment, the fire detector 4 detects the fire in the distribution board box 1 when the fire detector 4 detects the fire in the distribution board box 1, and the controller 9 receives the signal S. When a control signal is sent from the controller 9 to the drive motor 8, the drive motor 8 rotates forward for a predetermined time, and the screw shaft 19 and the shaft cylinder portion 102 move together. The shaft 28 is pushed and moved downward.
At that time, the screw shaft 19 pushes and moves the breaking shaft 28 through the steel ball 107, so there is less friction compared to the case where these end faces are engaged, and the consumption of the dry battery 92 can be reduced correspondingly, and the drive This prevents the motor 8 from being seized.

Then, when the breaking unit 18 is moved downward by a predetermined displacement and the needle tube 33 has broken the sealing plate 24, this condition is detected by the limit switch 37, and the breaking signal Sb is sent to the controller 9 to drive the motor. At the same time, the alarm devices 114 and 115 are operated to notify the distribution board box 1 and the management room 116 of the breakage status. Therefore, since the alarm devices 114 and 115 accurately notify the actual breakage, the operation reliability can be obtained as compared with the conventional alarm device, and an accurate fire extinguishing operation can be confirmed. In this case, the fire extinguishing gas moves from the gap between the joints of the needle tube 33 to the nozzle hole 23 side. This situation is as shown in FIGS. 17 and 20B.

After the breakage, a reverse drive signal is output from the controller 9 to the drive motor 8, and the screw shaft 19 moves upward along the female thread portion 104 of the cylinder tube 102 and moves to the original reset position. By the way, the limit switch 36 is activated and the drive motor 8 is stopped.
In this case, since the upper end of the screw shaft 19 presses the O-ring 109 at the reset position and absorbs the contact force of the screw shaft 19, the screw shaft 19 is prevented from biting into the housing case 6, and thereafter The power at the start of the downward movement of the screw shaft 19 is reduced.
Thus, the needle shaft 31 moves upward, the needle tube 33 is pulled out from the sealing plate 24, and the fire extinguishing gas moves in a large amount from the sealing hole to the nozzle hole 23 side. This situation is as shown in FIG.

FIGS. 21 to 32 show a ninth embodiment of the present invention. This embodiment relates to an application of the fifth embodiment so that the gas cylinder 20 can be reliably dropped and easily attached and detached. Yes.
That is, in this embodiment, a pair of frame bodies 119 that can accommodate the gas cylinders 20 are spaced apart from each other, the upper plate 120 and the lower plate 121 are fixed to the upper and lower end portions thereof, and the frame is formed into a vertically long rectangle. A frame is vertically installed at an appropriate position in the distribution board box 1, and a gas cylinder 20 is installed in the rectangular frame so as to be dropped.
At that time, the frame body 119, the upper plate 120, and the lower plate 121 may be configured by the side walls, the ceiling portion 59, and the floor surface 60 that constitute the distribution board box 1.

A guide column 61 is vertically fixed at a corner between the upper plate 120 and the lower plate 121, and a synthetic resin housing case 6 is slidably attached along the guide column 61.
The housing case 6 is divided into two parts centering on a through-hole described later, and a pair of divided pieces are joined to each other in a substantially rectangular shape. An open notch groove 122 is formed, and an upper portion of the cylindrical housing 123 is rotatably connected to the notch groove 122 via a pin 125.

The housing case 6 is formed into a substantially square shape with a synthetic resin, and a notch groove 122 opened downward and laterally is formed therein, and an upper portion of the cylindrical housing 123 is inserted into the notch groove 122 via a pin 124. It is connected so that it can rotate.
A sealed cylinder 124 is fixed to the inside of the cylindrical housing 123 via a pin 155, and the sealed housing 7 is slidably inserted immediately below the sealed cylinder 124. A pin 126 projects from the peripheral surface of the sealed housing 7, and the pin 126 is disposed so as to be engageable with an opening edge of a long hole 127 formed in an intermediate portion of the cylindrical housing 123. In the figure, reference numeral 128 denotes a communication hole formed inside the tearing cylinder 124, and its upper end communicates with the nozzle hole 23 through the injection hole 129, and its lower end communicates with the needle tube 33 through the through hole 130.

Immediately below each of the divided pieces, cylinder holders 131 and 132 having substantially L-shaped and inverted L-shaped cross-sections are projected, and their bases are joined to form a substantially U-shaped cross section. The concave curved portions 131a and 132a The lower part of the cylindrical housing 123 is clamped inside. In the drawing, reference numeral 133 denotes an O-ring mounted in an annular groove below the through-hole 15 to maintain the airtightness of the outer peripheral portion of the sealing plate 24.

A through hole 134 is provided in the upper center of the housing case 6, and a latch cam 135 is rotatably inserted into the through hole 134. The latch cam 135 has an upper portion formed in a shaft shape, and an engagement hole 136 having a substantially meniscal cross section is formed at an upper end portion of the latch cam 135. The output shaft 10 having the same cross section is fitted in the engagement hole 136 so as to be engageable.
An intermediate portion of the latch cam 135 is rotatably inserted into the upper plate 120, and a spherical concave hole 137 is provided on the peripheral surface thereof, and a stop ball 138 is provided in the concave hole 137 so as to be detachable. .
A lower end portion of the latch cam 135 is disposed so as to protrude from the through hole 134, and a synthetic resin latch 139 is detachably disposed at the lower end portion, and the housing case 6 is attached to the latch cam 135 through the engagement / disengagement operation. Can be suspended or dropped

That is, a concave hole 140 is formed inside the upper plate 120 so as to face the insertion hole of the latch cam 135, and the stop ball 138 and the spring 141 are accommodated in the concave hole 140, and the stop ball 138 is accommodated by the elasticity of the spring 141. Is urged to be able to be engaged and disengaged in the concave hole 137.
A hook-like hook 142 is formed at the lower end portion of the latch cam 135, the lower end portion of the hook 142 is formed in a substantially truncated cone shape, and a conical surface 142a is formed on a substantially half circumferential surface thereof, and a flat portion is formed on the upper portion thereof. An engagement surface 142b is formed. Flat cutout grooves 143 and 144 are formed on the peripheral surface of the latch cam 135 at right angles to each other, and the corners thereof are formed in an arc shape. In the figure, reference numerals 145 and 146 denote tapered surfaces formed in the upper portions of the notch grooves 143 and 144.

The latch 139 is formed in a substantially cylindrical shape, a tapered surface 139a is formed at the top of the tip, and a flat engagement surface 139b is formed at the bottom of the tip. The tapered surface 139a is formed in the housing case 6. Is engaged with the conical surface 142a immediately below the latch cam 135, moves upward while retreating against a spring described later, and engages the engagement surface 139b with the engagement surface 142b to release the latch 139. The latch cam 135 can be engaged.
A pair of engaging claws 147 project from the tip of the latch 139, and a concave notch groove 148 that can engage with the peripheral surface of the latch cam 135 is formed between the engaging claws 147.

When the latch 139 and the latch cam 135 are engaged, the engagement surface 139 b of the latch 139 engages with the engagement surface 142 b of the latch cam 135 to support the housing case 6, and the latch cam 135 is connected via the drive motor 8. Is rotated forward by a predetermined angle, 90 ° in the embodiment, the engagement between the engagement surface 139b and the engagement surface 142b is released, and the housing case 6 can be dropped. In this embodiment, the drive motor 8 is reversely rotated after 90 ° forward rotation and can be returned to the original position.
In the figure, reference numeral 149 denotes a latch moving hole formed inside the housing case 6. The latch 139 is slidably received in the moving hole 149, and is latched through the elasticity of the spring 150 arranged at the rear end. 139 is urged to move forward.

In the figure, reference numeral 151 denotes a pin hole formed on the peripheral surface of the latch 139. The pin 152 is inserted into the pin hole 151, and the pin 152 is engaged with the front end portion of the guide groove 153 formed in the housing case 6. Thus, the protruding displacement of the latch 139 is restricted.
In addition, in the figure, reference numeral 154 denotes an annular groove formed immediately above the tapered surface 145, and a retaining ring 155 for preventing the latch cam 135 from coming off is attached to the annular groove 154.

In this embodiment, the upper and lower sides of a pair of frame bodies 119 are connected by an upper plate 120 and a lower plate 121, guide columns 61 are erected at the corners thereof, and this vertically long rectangular housing is connected to a distribution board box. The drive unit U is installed on the upper plate 120 in a vertical position. At that time, in preparation for the operation of attaching and detaching the gas cylinder 20, an attaching and detaching space is secured around the opposite side of the casing to the fire-extinguishing gas ejection direction.
Then, the output shaft 10 of the drive unit U is fitted into the engagement hole 136 of the latch cam 135 and is rotatably inserted into the upper plate 120, and a retaining ring 155 is attached thereto to prevent the signal line 4a from being pulled out. Connect to fire detector 4.

Further, a latch 139, a spring 150, and a pin 151 are assembled in one divided piece of the housing case 6 that is divided into two parts, and a cylindrical housing 123 is inserted into a notch groove 122 immediately below the latch case 139. The upper part is connected via a pin 125 so as to be rotatable.
The cylindrical housing 123 is inserted in advance with a sealed tube 124 and a sealed housing 7, and pins 155 and 126 are inserted into these to fix the broken tube 124, and the broken housing 7 is movably attached. And the spring 35 is inserted between them and the tearing housing 7 is urged | biased so that a downward movement is possible.
Then, after assembling the latch 139, the cylindrical housing 123, the sealed cylinder 124, and the sealed housing 7, the housing case 6 is slidably attached to the guide column 61.

Next, when the gas cylinder 20 filled with a fire extinguishing gas is attached to the housing case 6, for example, the housing case 6 is moved upward to engage the latch 139 with the lower end of the latch cam 135, and the latch 139. Is retracted against the spring 150, its flat engagement surface 139 b is engaged with the flat engagement surface 139 b of the latch cam 135, the latch 139 is engaged with the latch cam 135, and the top of the housing case 6 is engaged. Hold the moving position. At this time, the conical surface 142 a of the latch cam 135 and the tapered surface 139 a of the latch 139 are smoothly engaged, and the latch 139 is smoothly engaged with the latch cam 135.

Thereafter, the end of the cylindrical housing 123 protruding from the housing case 6 is held, and this is rotated upward along the notch groove 122 with the pin 125 as a fulcrum. The screw part 17 is exposed and the position is held.
Then, the gas cylinder 20 filled with the fire extinguishing gas is held, and the screw portion 21 at the mouth is screwed into the screw portion 17. This situation is as shown in FIG. 23, and the gas cylinder 20 has a cylinder cap 118 attached in advance to the bottom.

In this case, without engaging the latch 139 with the latch cam 135, the housing case 6 is held at an appropriate position of the frame body, and the end of the cylindrical housing 123 protruding from the housing case 6 is held. The pin 125 may be pivoted upward along the notch groove 122, and the screw portion 21 of the gas cylinder 20 may be screwed into the screw portion 17 of the rupture housing 7 to be mounted.

After the gas cylinder 20 is mounted, the cylinder 20 is held, the pin 125 is pivoted downward along the notch groove 122, and the lower end of the cylindrical housing 123 is pushed into the cylinder holders 131 and 132. The cylindrical housing 123 is sandwiched between the concave curved portions 131a and 132a. This situation is as shown in FIG.
Thus, the gas cylinder 20 is suspended vertically in the frame, and the drive unit U waits for the signal S from the fire detector 4 under this condition. This situation is as shown in FIGS. 21 and 22, in which the flat engagement surface 139b of the latch 139 is engaged with the flat engagement surface 142b of the hook 142, and the engagement claws 147 and 147 are engaged with both sides of the latch cam 135. Match.
This situation is as shown in FIGS.

Thereafter, when the fire detector 4 detects a fire in the distribution board box 1, the controller 9 receives the signal S and sends a control signal from the controller 9 to the drive motor 8. -The motor 8 rotates forward for a predetermined time or a predetermined angle, and the output shaft 10 and the latch cam 135 rotate synchronously.
When the latch cam 135 rotates approximately 90 °, the engagement surface 142b moves to the outside of the tip of the latch 139, and the engagement with the engagement surface 139b is released. This situation is as shown in FIG.
For this reason, the latch 139 and the latch cam 135 are disengaged, and the housing case 6 falls along with the gas cylinder 20 along the guide column 61.

When the gas cylinder 20 falls to the lowest position and the cylinder cap 118 abuts on the lower plate 121, the cylinder cap 118 is repelled upward by the impact, while the housing case 6 and the gas cylinder 20 are caused by inertia. The sealing housing 7 moves upward relative to the housing case 6, and the needle tube 33 pierces the sealing plate 24 and seals it.
For this reason, the fire extinguishing gas (carbon dioxide) filled in the gas cylinder 20 flows out through the needle tube 33 and the through hole 130 to the communication hole 128, and from the communication hole 128 through the nozzle hole 129 and the nozzle hole 23, Blow out toward the fire and extinguish the fire. This situation is as shown in FIG.

After the gas cylinder 20 is dropped or broken, the broken cylinder 124 is pushed up by the fire gas ejection pressure and the spring 35, and the cylindrical housing 123 moves together with this, and the needle tube 33 is pulled out from the sealing plate 24. For this reason, the fire extinguishing gas flows out from the sealing hole to the communication hole 128 through the needle tube 33 and the through hole 130, and moves from the communication hole 128 to the injection hole 129.
At this time, since the needle tube 33 and the through-hole 130, the communication hole 128 and the injection hole 129, and the nozzle hole 23 and the injection hole 22 are kept in communication even after the breaking tube 124 is pushed up, the fire extinguishing gas is supplied to the injection hole 129 and the nozzle hole 23. After passing through, it ejects from the injection hole 22 toward the fire source and continues to extinguish.

When removing the gas cylinder 20 that has consumed the extinguishing gas after extinguishing the fire, for example, the gas cylinder 20 is held at the dropping position, and this is rotated upward with the pin 125 as a fulcrum to hold the cylindrical housing 123 horizontally. The gas cylinder 20 is removed from the screw portion 17 of the hole 14, and a new gas cylinder 20 is installed instead.

Thus, in this embodiment, when the gas cylinder 20 is dropped and sealed, the latch cam 135 is rotated to release the engagement with the latch 139. Therefore, the gas cylinder 20 can be reliably and easily dropped. .
When the gas cylinder 20 is attached / detached, the cylindrical housing 123 and the sealed cylinder 124 are held horizontally, and the screw part 21 of the gas cylinder 20 is screwed into the concave hole 14 and the screw part 17 to attach / detach the gas cylinder 20. Therefore, compared with the case where the gas cylinder 20 is attached / detached with the concave hole 14 and the screw part 17 facing downward, the O-ring 133 attached to the annular groove below the through hole 15 is prevented from falling off, and the fire is extinguished at the time of breaking. Gas leakage can be prevented in advance, and attachment / detachment operations can be easily performed.

As described above, the automatic fire extinguishing apparatus of the present invention can surely and quickly extinguish the fire, accurately operates the alarm device in accordance with the actual fire extinguishing operation of the fire extinguishing equipment, and can ensure the reliability of the alarm operation. It is suitable for extinguishing an electric fire in an automobile charging facility equipped with a simple fire extinguisher.

4 Fire detector 5 Fire extinguishing device (fire extinguishing gas injector)
6 Housing Case 7 Breaking Housing 8 Actuator (Drive Motor)
DESCRIPTION OF SYMBOLS 10 Output shaft 12 Connection shaft 15 Through-hole 16 Screw part 18 Breaking unit 19 Screw shaft

20 Gas cylinder 23 Nozzle hole 24 Sealing plate 27 Boss 33 Needle tube 36, 37 Limit switch 39 Nut 41 Connecting piece 49 Drive gear 51, 52 Bevel gear 61 Guide post

70 Actuator (solenoid valve)
71 Piston rod 74 Contact plate 76 Case cover
78 End face cam 79 Operation handle 83 Center shaft 86 Slide block 88 Spring 89 Guide groove

90 Through-hole 91 Rotating shaft 92 Power supply 107 Steel ball 109 O- ring 114, 115 Alarm 116 Control room 131, 132 Cylinder holder 135 Latch cam 139 Latch S Fire detection signal Sb Breaking signal

Claims (32)

1. A gas cylinder filled with a fire extinguishing gas and sealed at its mouth with a sealing plate is detachably attached to the tear housing, and a through hole and a nozzle hole communicating with the through hole are formed in the tear housing, and the nozzle A fire extinguishing gas injector is provided in which a hole is disposed toward a predetermined position on the outside and a tear-off unit provided with a needle tube in the through-hole is movably provided on the sealing plate side. Installed in a space, the operation of the smashing unit is linked to an actuator operable by a fire detector signal that senses smoke or predetermined heat, and the smashing unit or gas cylinder is relatively close to each other. An automatic fire extinguishing apparatus that is capable of being torn open by an automatic operation characterized in that a breaker unit is provided so as to be interlocked with the operation of the actuator, and the breakable unit is rotated or linearly moved to be able to be opened. Disappear Apparatus.
2. The automatic fire extinguishing apparatus according to claim 1, wherein the actuator is provided so as to be capable of forward and reverse rotation, and the needle tube of the rupture unit is rotated to enable rupture.
3. The automatic fire extinguishing apparatus according to claim 1, wherein the shaft end of the breaking unit is detachably connected to the output shaft of the actuator.
4. Provided with a screw portion in the rupture housing, a screw shaft that can be screwed to the screw portion in the rupture unit, a connecting shaft and a screw shaft of the rupture unit, and a rupture shaft provided with a needle tube The automatic fire extinguishing apparatus according to claim 1, which is integrally formed.
5. The automatic fire extinguishing apparatus according to claim 4, wherein the connecting shaft is separated from a screw shaft and a broken shaft provided with a needle tube.
6. The automatic fire extinguishing apparatus according to claim 5, wherein the seal shaft is urged and arranged to be movable toward the screw shaft.
7. The automatic fire extinguishing apparatus according to claim 5, wherein the screw shaft and the end portion of the breaking shaft are spaced apart from each other and a steel ball is interposed between them so as to be swingable.
8. The automatic fire extinguishing apparatus according to claim 1, wherein an O-ring is disposed at a lower end portion in a housing case that engages with an upper end portion of the severing housing, and an upper end portion of a screw shaft can be engaged with the O-ring.
9. The automatic fire extinguishing apparatus according to claim 1, wherein the actuator, the breaking unit and the breaking housing are arranged coaxially.
10. The automatic fire extinguishing apparatus according to claim 1, wherein the fire extinguishing space is a closed space and the fire extinguishing gas is carbon dioxide.
11. The automatic fire extinguishing apparatus according to claim 1, wherein an alarm device operable at the time of the breakage by the needle tube is provided, and the alarm device is installed in a fire extinguishing gas injector or the vicinity thereof or in a management room separated from the fire fighting space.
12. There is provided a drive unit comprising a controller for controlling the actuator, its power source, and driving of the actuator, and a receiver capable of receiving a fire detector signal, and the drive unit is connected to the actuator. The automatic fire extinguishing apparatus according to claim 1, which is disposed at a close position.
13. A limit switch capable of detecting the displacement of the rupture unit corresponding to the rupture is arranged facing the moving range of the connecting shaft or the screw shaft, and an alarm device transmits the detection signal of the limit switch via the controller. The automatic fire extinguishing apparatus according to claim 4 or 5, wherein output to the power source is possible.
14. The automatic fire extinguishing apparatus according to claim 1, wherein the actuator, the breaking unit and the breaking housing are arranged on different axes parallel to each other.
15. The actuator has an output shaft provided with a threaded portion, one end of a connecting piece is swingably connected to a nut screwed to the threaded portion, and the other end of the connecting piece is swingably supported. A connecting piece is provided so as to be able to swing around the pivot portion through axial displacement of the nut, and a breakage housing is arranged in parallel with the output shaft so as to face the swinging area of the connecting piece. The automatic fire extinguishing apparatus according to claim 7, wherein a breakage unit is provided in the seal housing so as to be able to appear and retract, and an end portion of the breakage unit is arranged to be engageable with the connecting piece.
16. One end of the rotation shaft is detachably mounted on the output shaft of the actuator, a bevel gear is disposed on the other end of the rotation shaft, and the two bevel gears that can mesh with the bevel gear are spaced apart from each other. And disposing a tearing housing provided with the threaded portion on the same axis of each bevel gear so as to be opposed to each other, and mounting a tearing unit provided with the screw shaft on the breaking housing, and one end of the breaking unit. Is attached to the bevel gear in a slidable manner, each of the severing units is provided so as to be able to move close to and away from each other through the rotation of the bevel gear, and the gas cylinders attached to each of the severing housings are detachably attached. Automatic fire extinguishing device as described.
17. The screw part and the through hole are formed on both sides of a single breakage housing, two breakage units having screw shafts are attached to the screw part and the through hole, and a gear is attached to one end of each breakage unit. The drive gear is disposed between the gears so as to be meshable, and the drive gear is attached to the output shaft of the actuator so that the respective breaking units can move in the same direction through the rotation of the gear. The automatic fire extinguishing apparatus according to claim 3, wherein a gas cylinder attached to the other end of the severing housing is installed so as to be severable at the same time.
18. A gas cylinder filled with a fire extinguishing gas and sealed at its mouth with a sealing plate is detachably attached to the tear housing, and a through hole and a nozzle hole communicating with the through hole are formed in the tear housing, and the nozzle A fire extinguishing gas injector is provided in which a hole is disposed toward a predetermined position on the outside and a tear-off unit provided with a needle tube in the through-hole is movably provided on the sealing plate side. Installed in a space, the operation of the smashing unit is linked to an actuator operable by a fire detector signal that senses smoke or predetermined heat, and the smashing unit or gas cylinder is relatively close to each other. In the automatic fire extinguishing apparatus that is capable of being broken, a breaker unit is provided so as to be interlocked with the operation of the actuator, and the breaker unit is operated linearly so that it can be broken. A housing case is installed in the housing case, and the smashing unit and the smashed housing fitted with a gas cylinder are accommodated in the housing case so that they can be moved close to each other, and the actuator output shaft is detachably disposed in the housing case. The output shaft is normally engaged with the housing case to hold the housing case at a predetermined height, and when the fire detector is activated, the engagement between the output shaft and the housing case is released, and the housing An automatic fire extinguishing apparatus, characterized in that a case is provided so that it can be dropped, and a tearing housing or a tearing unit is moved close to each other via an impact at the time of dropping.
19. The automatic fire extinguishing apparatus according to claim 18, wherein the fire extinguishing space is a closed space and the fire extinguishing gas is carbon dioxide.
20. 19. The automatic fire extinguishing apparatus according to claim 18, wherein an alarm device operable at the time of breaking by the needle tube is provided, and the alarm device is installed in a fire extinguishing gas injector or the vicinity thereof or in a management room separated from the fire extinguishing space.
21. There is provided a drive unit comprising a controller for controlling the actuator, its drive source, and the drive of the actuator, and a receiver capable of receiving a fire detector signal. The drive unit is provided with the actuator. The automatic fire extinguishing apparatus according to claim 18, which is disposed in the proximity position of.
22. 19. The automatic fire extinguishing apparatus according to claim 18, wherein guide struts are vertically disposed near the housing case, and the housing case, the gas cylinder, and the broken housing are dropped along the guide strut.
23. 19. The automatic fire extinguishing apparatus according to claim 18, wherein the gas cylinder protrudes below the sealed housing and is hung so that the bottom of the gas cylinder can collide when dropped.
24. The automatic fire extinguishing device according to claim 18, wherein the output shaft is movable or rotated in the axial direction.
25. A hook-shaped latch cam is mounted on the output shaft, and a hook-shaped latch that can be engaged with and disengaged from the latch cam is provided in the housing case, and the latch case is normally engaged with the latch cam to hold the housing case at a predetermined height. The automatic fire extinguishing apparatus according to claim 18, wherein when the fire detector is activated, the latch and the latch cam are disengaged to allow the housing case to fall.
26. A notch groove is formed in the housing case to open laterally and downward, and an upper portion of the cylindrical housing is rotatably connected to the notch groove, and the rupture unit and the rupture housing are provided in the cylindrical housing. 26. The automatic fire extinguishing apparatus according to claim 25, wherein said cylindrical housing mounted in a sealed housing is pivotable in a direction perpendicular to the direction in which the gas cylinder is dropped.
27. 26. The automatic fire extinguishing apparatus according to claim 25, wherein a pair of cylinder holders are arranged so as to face each other directly below the housing case, and the lower part of the cylindrical housing can be clamped via the cylinder holder.
28. 19. The automatic fire extinguishing apparatus according to claim 18, wherein a highly repulsive contact plate is disposed in a falling area of the gas cylinder.
29. A slide block is slidably provided inside the housing case, and a pivot shaft linked to an actuator that can be rotated forward and backward is detachably disposed on the slide block, and a sealing unit projects downward on the slide block. The lower end of the center shaft is fixed to the slide block, and the center shaft protrudes upward, while the case cover is fixed to the upper part of the housing case, and the center shaft is fixed to the case cover. It is arranged so as to be slidable, a spring is inserted between the case cover and the slide block, the slide block is urged so as to be movable downward through the elasticity of the spring, and the upward movement position of the center shaft is determined. While being provided so that it can be held, the slide block is normally held in the uppermost position via a rotating shaft, and the slide block is urged downward. On the other hand, the engagement between the rotary shaft and the slide block is released through the operation of the actuator, the slide block is pushed down by the elasticity of the spring, and the tearing unit is moved to this to enable the tearing. The automatic fire extinguishing apparatus according to claim 18.
30. An end face cam is formed in a helical shape on the upper part of the case cover, an operation handle that can be engaged with the end face cam is projected from the upper part of the center shaft, and the center shaft is moved through the turning operation of the operation handle. 30. The automatic fire extinguishing apparatus according to claim 29, wherein the automatic extinguishing apparatus is capable of moving upward.
31. The rotation shaft is formed in a substantially horizontally long rectangular cross section, and a through hole for rotatably receiving the rotation shaft in the slide block and a guide groove communicating with the through hole are formed and received in the through hole. The automatic fire extinguishing apparatus according to claim 30, wherein the rotation shaft is disposed so as to be engageable with the opening of the guide groove.
32. The actuator is provided with a retractable piston rod, the piston rod is disposed to be engageable with a lower portion of a gas cylinder, and the housing is detachably disposed in a housing case in which the severing housing is movably accommodated. 19. The automatic fire extinguishing apparatus according to claim 18, wherein the breaking unit is fixed to a case, the piston rod is extended through the operation of the actuator, and the gas cylinder and the breaking housing are pushed up to be able to be broken.

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