JP3944236B2 - Fire extinguisher - Google Patents

Description

  The present invention relates to a fire extinguishing apparatus that discharges and discharges a fire extinguisher stored in a container using a compressed fluid, and extinguishes fire with the fire extinguishing agent.

  The conventional first technique is disclosed in Patent Document 1. The conventional fire extinguishing apparatus according to the first technique includes an air cylinder filled with compressed air and a liquid tank filled with a fire extinguishing liquid, and the air cylinder and the liquid tank communicate with each other. The fire extinguishing apparatus further includes an injection gun for spraying a fire extinguishing liquid in a mist form. The spray gun is connected to a liquid tank by a spray hose, and fire extinguishing liquid is guided according to the internal pressure of the liquid tank. The injection gun includes an on-off valve and a discharge nozzle. By opening the on-off valve, the introduced fire extinguishing liquid can be sprayed from the discharge nozzle in a mist form. The fire extinguisher is provided with a respirator. The fire extinguisher configured in this way guides compressed air of 5 MPa or more and 30 MPa or less filled in the air cylinder into the liquid tank, and pumps the fire extinguishing liquid to the injection gun by this compressed air, and forms a mist from the injection gun. Spray.

  A second conventional technique is disclosed in Patent Document 2. A conventional two-fluid fire extinguisher according to the second technology is an air cylinder filled with compressed air, a liquid supply source capable of supplying pressurized liquid, and a mixture of compressed air and pressurized liquid sprayed in a mist form. A fluid nozzle, an air hose connected to the air cylinder and the two-fluid nozzle, for guiding compressed air to the two-fluid nozzle, and a liquid connected to the liquid supply source and the two-fluid nozzle for guiding the pressurized liquid to the two-fluid nozzle A hose. The two-fluid fire extinguisher having such a configuration mixes compressed air guided from an air cylinder and pressurized liquid guided from a liquid supply source with a two-fluid nozzle and injects it in the form of a mist.

JP 2000-140143 A JP 2003-190314 A

  The conventional fire extinguishing apparatus according to the first technique can spray water in a mist form from the discharge nozzle by introducing compressed air having a pressure of 5 MPa or more and 30 MPa or less from an air cylinder to a liquid tank. Thus, since the compressed air of 5 MPa or more and 30 MPa or less is guided, the liquid tank requires pressure resistance capable of withstanding this pressure. In order to achieve such pressure resistance performance, it is necessary to make the liquid tank thick, which increases the weight of the liquid tank and consequently increases the weight of the fire extinguishing device.

  In order to make the liquid tank thin, if the pressure of the compressed air is set to be equal to or less than the range disclosed in the conventional first technique, the amount of fire extinguishing liquid injected is reduced, and high concentration mist cannot be injected, It is difficult to improve fire extinguishing efficiency. Therefore, it is difficult to reduce the thickness by reducing the pressure of the compressed air with the conventional fire extinguishing apparatus of the first technique.

In the conventional two-fluid fire extinguishing apparatus according to the second technology, compressed air filled in an air cylinder and liquid supplied from a liquid supply source are mixed with a two-fluid nozzle to form mist-like water, which is used as a fire extinguishing target. Spray. In this way, the fire extinguishing target is extinguished by spraying mist-like water. In a two-fluid fire extinguisher, compressed air and liquid are mixed to form mist-like water, so a large amount of compressed air is required. When the amount of compressed air filled in the air cylinder is small, the injection time becomes short and it becomes difficult to perform sufficient fire extinguishing. Therefore, it is necessary to increase the capacity of the air cylinder in order to extend the injection time. Thus, when the capacity of the air cylinder increases, the weight of the air cylinder naturally increases, and as a result, the weight of the fire extinguishing device increases.
An object of the present invention is to provide a fire extinguishing apparatus that is reduced in weight.

The present invention is a pressure source fluid that is compressed compared to the atmospheric pressure, and a pressure source fluid container that stores a pressure source fluid that can be respired by a wearer when the pressure is reduced.
An air supply means for adjusting the pressure source fluid to be introduced to a pressure at which the wearer can breathe, and supplying the adjusted pressure source fluid to the outside of the device;
A fire extinguishing agent container for storing a fire extinguishing agent;
Discharging means for discharging the extinguishing agent to be guided outside the apparatus;
A fire extinguishing agent passage connected to the extinguishing agent container and the discharging means, and leading the extinguishing agent stored in the extinguishing agent container to the discharging means;
Connected to the pressure source fluid container and branched halfway, one of the branch paths is connected to the extinguishing agent container, the other of the branch paths is connected to the air supply means, and the pressure stored in the pressure source fluid container Pressure source fluid flow paths for leading the source fluid to the extinguishing agent container and the air supply means, respectively;
Pressure reducing means interposed in the pressure source fluid flow path and adjusting the pressure source fluid to a pressure lower than the pressure in the pressure source fluid container and respectively flowing down to the two branch paths of the pressure source fluid flow path; ,
A fire-extinguishing apparatus, comprising: a back-flow preventing means that prevents the fire-extinguishing agent that flows through the pressure-source fluid flow path from flowing back toward the air supply means .

According to the present invention , the pressure source fluid container stores a pressure source fluid that is compressed as compared with the atmospheric pressure and that can be breathed by the wearer when the pressure is reduced. The pressure source fluid is guided to the fire extinguishing agent container and the air supply means through the pressure source fluid passage. The pressure source fluid led from the pressure source fluid container to the fire extinguishing agent container applies pressure to the fire extinguishing agent stored in the fire extinguishing agent container. Thus, the extinguishing agent stored in the extinguishing agent container is guided to the discharging means through the extinguishing agent flow path, and discharged from the discharging means to the outside of the apparatus. The pressure source fluid led from the pressure source fluid container to the air supply means is adjusted by the air supply means to a pressure that allows the wearer to breathe, and is supplied to the outside of the apparatus from the air supply means.
The pressure source fluid flow path is connected to the pressure source fluid container and branches in the middle. One of the branch paths is connected to the extinguishing agent container, and the other of the branch paths is connected to the air supply means. A pressure reducing means and a backflow preventing means are interposed in the pressure source fluid flow path. The pressure reducing means causes the pressure source fluid adjusted to a pressure lower than the pressure in the pressure source fluid container to flow down to the two branch passages of the pressure source fluid channel. As a result, the pressure source fluid adjusted to a pressure lower than the pressure in the pressure source fluid container by the decompression means is guided to the extinguishant container and the air supply means. The backflow preventing means prevents the extinguishing agent that has flowed back through the pressure source fluid flow path from flowing into the air supply means.
Further, the present invention is characterized in that the backflow prevention means is interposed downstream of the branch point in the pressure source fluid flow path and upstream of the fire extinguishing agent container .
Further, according to the present invention, the backflow prevention means is interposed downstream of the branch point in the pressure source fluid flow path and upstream of the fire extinguishing agent container, so that the fire extinguishing agent is downstream of the branch point. Can be prevented.

In the invention, it is preferable that the pressure reducing means is a pressure control valve that keeps the pressure on the secondary side constant.

According to the present invention, the pressure control valve can guide the pressure source fluid whose pressure is kept constant to the extinguishing agent container. As a result, the flow rate of the extinguishing agent discharged from the extinguishing agent container to the extinguishing agent flow path can be made constant regardless of the remaining amount of the pressure source fluid.

The present invention is interposed in the flow path for fire extinguishing agent, characterized in that it further comprises a falling prevention means for preventing that the lower flow is pressure-source fluid.

According to the present invention, the flow-preventing means can prevent the pressure source fluid from flowing down the fire extinguishing agent flow path and can be prevented from being guided to the discharge means. This prevents the pressure source fluid from being discharged from the discharge means to the outside of the apparatus .

Further, the present invention is arranged such that the pressure source fluid is disposed downstream of the branch point in the pressure source fluid flow path and upstream of the extinguishing agent container, and when the flow rate of the pressure source fluid exceeds a predetermined set flow rate. There is further comprising a vortex prevention means prevents the lower flow.

According to the present invention, the overflow preventing means is interposed downstream of the branch point in the pressure source fluid flow path and upstream of the fire extinguishing agent container . Excessive flow prevention means becomes equal to or larger than the set flow rate to the flow rate of the pressure source fluid is predetermined, prevents the lower flow is pressure-source fluid. As a result, waste of the pressure source fluid can be suppressed.

  Further, the present invention is characterized in that the fire extinguishing agent is an aqueous solution in which a resin having flame retardancy and whose viscosity increases with an increase in temperature is dissolved.

According to the present invention, an aqueous solution in which a resin whose viscosity increases as the temperature rises is dissolved in the fire extinguisher. Accordingly, when the extinguishing agent is released toward the fire extinguishing target, the temperature of the released extinguishing agent increases and the viscosity becomes high. A fire extinguisher whose viscosity has been increased is less likely to flow than water, and can be prevented from spreading due to the flow of the fire extinguisher adhering to the fire extinguishing target. Also, when flowing down the fire extinguishing agent flow path , the temperature of the extinguishing agent is lower than after discharge, so its viscosity is small, and the pressure required to pump the extinguishing agent through the extinguishing agent flow path to the discharge means Can be lowered.

The present invention further includes a frame for disposing a pressure source fluid container and a fire extinguishing agent container,
The frame is configured to be capable of being held in a state where the pressure source fluid container and the extinguishing agent container stand.

  According to the present invention, the pressure source fluid container and the fire extinguisher container can be held in the standing state by the frame in which the pressure source fluid container and the fire extinguishing agent container are disposed.

According to the present invention, the extinguishing agent stored in the extinguishing agent container receives pressure from the pressure source fluid led from the pressure source fluid container to the extinguishing agent container, and thereby passes through the extinguishing agent channel. , Guided to the discharge means, and discharged from the discharge means to the outside of the apparatus. In such this invention, a fire extinguisher can be discharge | released with a small amount of pressure source fluids. Therefore, the volume of the pressure source fluid to be stored in the pressure source fluid container can be reduced. As a result, the weight of the pressure source fluid container can be reduced, and consequently the weight of the fire extinguishing apparatus can be reduced.
The air supply means adjusts the compressed fluid guided from the pressure source fluid container to the air supply means to a pressure at which the wearer can breathe, and supplies the adjusted pressure source fluid to the outside of the apparatus. This allows the wearer to breathe using the air supply means. Thus, it is necessary to provide a container for newly storing gas only for supplying air by using the pressure source fluid for discharging the extinguishing agent from the discharging means for supplying air to the wearer. Absent. Therefore, it is possible to extinguish and supply air and to reduce the weight of the fire extinguishing device.

The pressure reducing means causes the pressure source fluid adjusted to a pressure lower than the pressure in the pressure source fluid container to flow down to the two branch passages of the pressure source fluid channel. As a result, the pressure source fluid adjusted to a pressure lower than the pressure in the pressure source fluid container by the decompression means is guided to the extinguishant container and the air supply means. Therefore, it is not necessary to increase the pressure resistance performance of the extinguishant container and the air supply means, and the thickness of the extinguishant container and the air supply means can be reduced. As a result, the weight of the fire extinguishing agent container and the air supply means can be reduced, and the weight of the fire extinguishing device can be reduced.
The decompression means is common to the extinguishant container and the air supply means. Therefore, the configuration of the fire extinguishing device can be simplified as compared with the case where the decompression unit is individually provided for the fire extinguishing agent container and the air supply unit, and thus the weight of the fire extinguishing device can be reduced.
The backflow prevention means prevents the extinguishing agent that has flowed back through the pressure source fluid flow path from flowing into the air supply means. Therefore, it can prevent that a fire extinguishing agent is guide | induced to an air supply means, and can prevent that a wearer inhales a fire extinguishing agent.
Further, according to the present invention, the backflow preventing means is interposed downstream of the branch point in the pressure source fluid flow path and upstream of the fire extinguishing agent container, so that the fire extinguishing agent is downstream of the branch point. Can be prevented. This can prevent the extinguishing agent that has flowed back through the pressure source fluid flow path from being guided to the air supply means .

According to the present invention, the flow rate of the extinguishing agent discharged from the extinguishing agent container to the extinguishing agent flow path can be made constant by the pressure control valve. Thus, the amount of extinguishing agent discharged from the discharging means through the extinguishing agent channel can be made constant. In the conventional fire extinguishing apparatus according to the first and second techniques, the discharge is performed based on the internal pressure of the extinguishant container, and therefore, the discharge amount depends on the storage amount of the extinguishant, in other words, the discharge time. In the present invention, since the extinguishing agent is discharged by the pressure source fluid maintained at a constant pressure, the extinguishing agent can be released at a constant discharge amount without depending on the discharge time. Thus, by making the amount of fire extinguishing agent released constant, it is possible to realize a fire extinguishing apparatus having a stable fire extinguishing capability in which the amount of fire extinguishing agent released does not depend on the release time.

According to the present invention, the flow-out means for preventing the pressure source fluid from flowing down is interposed in the flow path for the extinguishing agent . This can prevent the pressure source fluid from being discharged from the discharge means. Therefore, waste of the pressure source fluid can be prevented .

Thus, by preventing the waste of the pressure source fluid, it is possible to extend the time during which the air supply means can supply air. Therefore, you can stay at the fire site for a long time .

Further, according to the present invention, when the extinguishing agent is exhausted from the extinguishant container , the pressure source fluid is guided from the extinguishing agent container to the discharging unit and released from the discharging unit, thereby branching out of the pressure source fluid channel. The flow rate of the pressure source fluid flowing downstream from the point and upstream from the extinguishing agent container increases. In view of this point, the overflow prevention means is interposed downstream of the branch point in the pressure source fluid flow path and upstream of the fire extinguishing agent container. The overflow prevention means prevents the pressure source fluid from flowing down when the flow rate of the pressure source fluid exceeds a predetermined set flow rate. As a result , waste of the pressure source fluid can be prevented .

Thus, by preventing the waste of the pressure source fluid, it is possible to extend the time during which the air supply means can supply air. Therefore, you can stay at the fire site for a long time .

In addition, according to the present invention, by using an aqueous solution in which a resin whose viscosity increases as the temperature rises is dissolved in the fire extinguisher, it can be suppressed that the fire extinguisher attached to the fire extinguishing target flows and spreads. Excess extinguishing agent more than water can be parked near the fire extinguishing object. When a large amount of fire extinguishing agent stops, the amount of heat absorbed can be increased, and the cooling effect on the fire extinguishing object can be enhanced. As a result, the fire extinguishing performance can be improved over the conventional fire extinguishing apparatuses of the first and second techniques. With the improvement of the fire extinguishing performance, it becomes possible to extinguish with a small amount of extinguishing agent, and the capacity of the extinguishing agent to be stored in the extinguishing agent container can be reduced. As a result, the weight of the fire extinguishing agent container can be reduced, and the weight of the fire extinguishing apparatus can be reduced. In addition, since the viscosity of the extinguishing agent is low, the pressure required to discharge the extinguishing agent can be reduced when flowing down the extinguishing agent channel, and the pressure of the pressure source fluid to be led to the extinguishing agent container should be reduced. Can do. As a result, it is not necessary to increase the pressure resistance of the fire extinguishing agent container, and the thickness can be reduced.

  Moreover, according to this invention, the container for pressure source fluids and the container for extinguishing agents can be hold | maintained by a frame with a standing state. As a result, it is possible to prevent the pressure source fluid container and the fire extinguishing agent container from being laid on the ground and the like from being damaged. By preventing such damage, the pressure source fluid container and the extinguishing agent container can be prevented from bursting.

  Hereinafter, a plurality of embodiments for carrying out the present invention will be described with reference to the drawings. Parts corresponding to the matters described in the preceding forms in each form are denoted by the same reference numerals, and overlapping description may be omitted. When only a part of the configuration is described, the other parts of the configuration are the same as those described in the preceding. In addition to the combination of parts specifically described in each embodiment, the embodiments may be partially combined as long as the combination is not particularly troublesome.

  FIG. 1 is a system diagram schematically showing the configuration of a fire extinguisher 1 according to a first embodiment of the present invention. FIG. 2 is a block diagram illustrating a configuration of the fire extinguishing apparatus 1. FIG. 3 is a front view showing the fire extinguishing apparatus 1. The fire extinguishing apparatus 1 is a transportable fire extinguishing apparatus that is used when extinguishing a fire extinguishing target such as a house, furniture, and electronic equipment. The fire extinguisher 1 is configured to be wearable by a wearer or loaded on a vehicle or the like, for example. The fire extinguishing apparatus 1 is configured to discharge fire extinguishing agent using compressed air and discharge the extinguishing agent to a fire extinguishing target so that the fire can be extinguished. In this Embodiment, the fire extinguishing apparatus 1 is comprised so that a wearer can carry and carry.

  The fire extinguisher 1 includes a pressure source fluid container 2, two extinguishing agent containers 3, 4, a pressure source fluid conduit 5, a pressure reducing valve 6, a fire extinguishing agent conduit 8, discharge means 7, The on-off valve 9, the respirator 10, the check valve 11, the flow-down prevention valve 12, the container holder 13, the notification device 190, and the pressure indicator 191 are included.

  The pressure source fluid container 2 is configured to be able to store compressed air that is a pressure source fluid to be compressed, and is filled with the compressed air. The pressure source fluid container 2 is filled with a pressure source fluid of 29.4 MPa or 14.7 MPa. The pressure source fluid container 2 is made of, for example, glass fiber FRP-aluminum alloy or carbon fiber FRP (fiber reinforced plastic) -aluminum alloy. However, it is not limited to such a material. The pressure source fluid container 2 is generally formed in a cylindrical shape, one end in the axial direction thereof is closed, the other end is opened, and an opening / closing valve 9 is provided in the opening.

  The two extinguishing agent containers 3 and 4 are configured to be able to store the extinguishing agent, and the extinguishing agent is stored therein. The extinguishing agent containers 3 and 4 are made of, for example, stainless steel. However, the fire extinguishing agent containers 3 and 4 are not limited to such materials, and may be resins. The two extinguishing agent containers 3 and 4 are generally formed in a cylindrical shape, both axial ends thereof are opened, one end opening is sealed by the lid 20, and the other end opening is formed in the opening. Is provided with a collecting pipe 21. In the present embodiment, the two extinguishing agent containers 3 and 4 have the same shape and configuration.

  A fire extinguisher is an aqueous solution in which a resin that has flame retardancy and whose viscosity increases with increasing temperature is dissolved. The resin is, for example, a water-soluble acrylamide resin, and specifically, a resin mainly composed of N-isopropylacrylamide. However, the resin is not limited to the resin exemplified above, and may be any resin that has flame retardancy and increases in viscosity with increasing temperature.

  The pressure source fluid conduit 5 is made of, for example, NBR (butadiene acrylonitrile copolymer) based synthetic rubber, and is connected to the pressure source fluid container 2 and the two extinguishing agent containers 3 and 4. It is comprised so that the inside compressed air can be guide | induced to each container 3 and 4 for extinguishing agents. In the present embodiment, the pressure source fluid conduit 5 is connected to the pressure source fluid container 2 via the on-off valve 9. However, it is not limited to comprising the above materials. Hereinafter, the direction in which the compressed air flows down from the pressure source fluid container 2 to the extinguishing agent containers 3 and 4 is referred to as an A1 direction.

  More specifically, the pressure source fluid conduit 5 includes a first pressure source fluid conduit 5a and a second pressure source fluid conduit 5b. One end of the first pressure source fluid conduit 5a is connected to the on-off valve 9, and the other end is connected to an intermediate portion of the second pressure source fluid conduit 5b. One end of the second pressure source fluid conduit 5b is connected to one extinguishant container 3, and the other end is connected to the other extinguishant container 4.

  FIG. 4 is a plan sectional view showing the pressure reducing valve 6. FIG. 5 is a cross-sectional view of the pressure reducing valve taken along the cutting line AA in FIG. Referring to FIGS. 1 to 3, the pressure reducing valve 6 which is a pressure reducing means and is a pressure control valve is made of, for example, aluminum or brass and is interposed in the first pressure source fluid conduit portion 5a to The pressure of the compressed air flowing down the working conduit 5 is configured to be reduced. In the present embodiment, the pressure reducing valve 6 is a pressure control valve that reduces the pressure of the compressed air flowing down the pressure source fluid conduit 5 to 0.7 MPa, for example, and keeps it constant. However, the pressure reducing valve 6 is not limited to a pressure reducing pressure of 0.7 MPa, and is not limited to a configuration for maintaining a constant pressure. Further, the pressure reducing valve 6 is not limited to one made of aluminum or brass.

  More specifically, the pressure reducing valve 6 includes a compressed air conduction path forming part 110, a pressure control valve part 111, and a safety valve part 112, which are integrally formed. In the compressed air conduction path forming part 110, a compressed air conduction path 148 is formed. A filter 113 for filtering compressed air flowing down the compressed air moving passage 110 is interposed in the compressed air conducting path 110. The pressure control valve portion 111 includes a housing portion 114, a primary port forming portion 115, a pressure receiving body 116, a valve body 117, a closing member 118, a valve body adjusting member 119, a first spring member 120, A second spring member 121 and a lid portion 122 are included.

  The housing portion 114 has an axis L4, and a first space 123 and a second space 124 are formed around the axis L4. The first space 123 is formed with a smaller diameter than the second space 124. The first space 123 and the second space 124 are continuous. The casing portion 114 has a first space 123 formed on one end side in the axial direction and a second space 124 formed on the other end side. The casing portion 114 has a first space 123 connected to the compressed air conduction path 148, and the other axial end thereof opens in the axial direction. The casing portion 114 is formed with an annular protrusion 132 that surrounds the opening in which the first space 123 faces the second space 124.

  The primary port forming portion 115 is formed in a cylindrical shape, and an outward flange portion 125 that protrudes outward in the radial direction is formed at one end portion in the axial direction over the entire outer periphery. The axis of the primary port forming portion 115 coincides with the axis L4. A primary port 126 is formed by the inner peripheral portion of the cylindrical portion of the primary port forming portion 115. A plurality of communication passages 127 are formed in the outward flange portion 125 around the axis L4. The primary port forming portion 115 is provided in a state where the remaining portion excluding the outward flange portion 125 is accommodated in the first space 123 and the casing portion 114 is sealed.

  The pressure receiving body 116 includes an outward flange portion accommodating portion 116a and a valve body accommodating portion 116b. The outward flange portion accommodating portion 116a is formed in a cylindrical shape, and the outward flange portion 125 is screwed to the inner peripheral portion thereof. The outward flange portion accommodating portion 116a is accommodated in the second space 124 in a state where the casing portion 114 is sealed. The outward flange portion 125 is slidable in a direction parallel to the axis L4, and is provided in the housing portion 114 in a state where a seal is achieved.

  The valve body accommodating part 116b is a cylindrical shape whose outer diameter and inner diameter are smaller than those of the outward flange part accommodating part 116a. The outward flange portion accommodating portion 116a and the valve element accommodating portion 116b are formed integrally with the axis line of the axis L4. A flange-shaped first spring member support portion 116c is formed on the outer peripheral portion of the end of the valve body storage portion 116b that is continuous with the outward flange portion storage portion 116a over the entire circumference in the circumferential direction. The outer diameter of the first spring member support portion 116c is smaller than the outer diameter of the outward flange portion accommodating portion 116a.

  The valve body 117 includes a sheet holding portion 117a and a seat portion 117b. The sheet holding portion 117a is formed in a cylindrical shape, and the sheet portion 117b is fitted to one end in the axial direction thereof. The sheet portion 117b is generally formed in a cylindrical shape. The valve body 117 is accommodated inside the valve body accommodating portion 116b in a state where a seal is achieved. The axis lines of the sheet holding part 117a and the sheet part 117b coincide with the axis line L4. An annular valve seat 128 is formed in the primary port forming portion 115 so as to surround an opening of the primary port 126 facing the seat portion 117b. The seat portion 117b forms the valve seat 128 and the orifice 129.

  The casing portion 114 is closed by screwing a closing member 118 to the opening portion. The closing member 118 is formed in a cylindrical shape, and a valve body adjusting member 119 is screwed to the inner peripheral portion thereof. The valve body adjusting member 119 is formed in a substantially cylindrical shape, and is screwed to the closing member 118 so as to be able to come into contact with the other end portion in the axial direction of the sheet holding portion 117a. The axis of the valve body adjusting member 119 coincides with the axis L4. The other end in the axial direction of the sheet holding portion 117a is formed on a partial spherical surface in order to suppress the contact of the valve body adjusting member 119. The valve body adjusting member 119 can be displaced in a direction parallel to the axis L4 by rotating it with a tool such as a screwdriver, and the movable range of the valve body 117 can be adjusted.

  The first spring member 120 is a compression coil spring, and is disposed on the valve body housing portion 116 b and is disposed in an annular spring housing space 130 formed between the valve body housing portion 116 b and the housing portion 114. The One end portion of the first spring member 120 is supported by the first spring member support portion 116 c, and the other end portion is supported by the closing member 118. The second spring member 121 is a compression coil spring, is sheathed by the first spring member 120, and is accommodated in the spring accommodating space 130. One end portion of the second spring member 121 is supported by the outward flange portion accommodating portion 116 a, and the other end portion is supported by the closing member 118. The closing member 118 is formed with an atmosphere opening hole 131 that opens the spring accommodating space 130 to the atmosphere. The closing member 118 is fitted with a lid 122 for covering the valve body adjustment member 119.

  When configured in this way, a primary pressure chamber 133 is formed radially inward from the orifice 129, and a first secondary pressure chamber 134 is formed radially outward from the orifice 129. An annular second secondary pressure chamber 135 is formed radially outward from the protrusion 132 of the housing. The first and second secondary pressure chambers 134 and 135 are communicated with each other by a communication passage 127, and thereby a secondary pressure chamber is configured. ing. The casing portion 114 is formed with a secondary port 136 that communicates with the second secondary pressure chamber 135.

  The compressed fluid flowing down from the primary port 126 to the primary pressure chamber 133 passes through the orifice 129 and flows into the first secondary pressure chamber 134. The compressed fluid in the first secondary pressure chamber 134 flows down to the second secondary pressure chamber 135 via the communication path 127. The pressure receiving body 116 receives the pressure of the compressed air in the first and second secondary pressure chambers 134 and 135. The first and second spring members 120 and 121 are disposed so as to urge the pressure receiving body 116 with a resilient force opposed to the pressure to be received. The pressure receiving body 116 slides and displaces the housing portion 114 according to the pressure received by the pressure receiving body 116, that is, the pressure of the compressed air on the secondary side, and adjusts the opening degree of the orifice 129. As a result, the compressed air is depressurized, held at a constant pressure, and discharged to the secondary port 136.

  The safety valve portion 112 has an axis L5 and includes a housing portion 140, a spring holding member 141, a safety valve body 142, and a safety valve spring member 143. The housing portion 140 has a valve hole 144 and a safety valve housing hole 145 formed around the axis L5. The valve hole 144 is connected to the secondary port 136 and the safety valve accommodation hole 145, and has a smaller diameter than the safety valve accommodation hole 145. The casing portion 140 is formed with an annular safety valve seat 146 that surrounds an opening of the valve hole 144 facing the safety valve housing hole 145. The housing portion 140 is open on one side in the axial direction, specifically, on the opposite side to the secondary port, and a spring holding member 141 is screwed to the opening. Further, the safety valve body 142 is accommodated in the safety valve accommodation hole 145 so as to be slidable in a direction parallel to the axis L5. The safety valve body 142 is seated on the safety valve seat 146 and is separated from the safety valve seat 146 by sliding displacement. The safety valve spring member 143 is interposed between the safety valve body 142 and the safety valve spring member 143 and urges the safety valve body 142 to have a resilient force in a direction in which the safety valve body 142 is seated. An air release hole 147 that opens the safety valve housing hole 145 to the atmosphere is formed in the housing portion 140. When the pressure in the secondary port 136 becomes equal to or higher than a predetermined pressure, the safety valve unit 112 moves away from the safety valve seat 146 to release the compressed air to the atmosphere and reduce the pressure.

  The pressure reducing valve 6 is interposed in the pressure source fluid conduit 5, the compressed air conduction path 148 and the secondary side port 136 are connected to the pressure source fluid flow path 30, and the compressed air conduction path 148 is directed to the secondary side port 136. The compressed air is arranged to flow down.

  FIG. 6 is a front view showing the discharge means 7. FIG. 7 is a left side view showing the discharge means 7 when FIG. 6 is viewed from the left side of the drawing. FIG. 8 is a right side view showing the discharge means 7 when FIG. 6 is viewed from the right side of the drawing. FIG. 9 is a plan view of FIG. 6 viewed from the upper side of the drawing. FIG. 10 is a bottom view showing the discharge means 7 when FIG. 6 is viewed from the lower side of the drawing. FIG. 11 is a rear view showing the discharge means 7 when FIG. 6 is viewed from the back side of the drawing. FIG. 12 is a front cross-sectional view showing the discharging means 7 cut along the cutting line BB in FIG. FIG. 13 is an end view of the discharge means 7 as seen by cutting along the cutting line EE of FIG. FIG. 14 is an end view of the discharge means 7 as seen by cutting along the cutting line FF in FIG. FIG. 15 is an end view of the discharge means 7 as seen by cutting along the cutting line GG of FIG. FIG. 16 is a cross-sectional view showing the discharge means housing 25 taken along the cutting line BB in FIG. FIG. 12 is different from the cross section of the discharge means 7 shown in FIG. 6 for convenience of explanation. Referring to FIGS. 1 and 2, the discharge means 7 is a so-called hand gun, and is configured to be able to discharge the fire extinguishing agent stored in the fire extinguishing agent containers 3 and 4.

  The extinguishing agent conduit 8 is made of, for example, NBR synthetic rubber, and is connected to the two extinguishing agent containers 3 and 4 and the discharge means 7 and discharges the extinguishing agent stored in the two extinguishing agent containers 3 and 4. It is configured to lead to means 7. However, it is not limited to comprising the above materials. The extinguishing agent conduit 8 includes a first extinguishing agent conduit portion 8a and a second extinguishing agent conduit portion 8b. The first extinguishing agent conduit 8 a has one end connected to one extinguishing agent container 3 and the other end connected to the other extinguishing agent container 4. The second extinguishing agent conduit 8b has one end connected to the discharge means 7 and the other end connected to an intermediate portion of the first extinguishing agent conduit 8a.

  FIG. 17 is a view showing the collective piping 21. FIG. 18 is a bottom view showing the collective piping 21 as viewed from the lower side of the drawing of FIG. FIG. 19 is a plan view showing the collective piping 21 as viewed from the upper side in FIG. An opening at the other axial end of the two extinguishant containers 3, 4 is provided with a collecting pipe 21, in which a part of the pressure source fluid conduit 5 and the extinguishing agent conduit 8 are provided. Is formed. In the collective pipe 21, a part of the extinguishing agent conduit 8 is provided with a plurality of flow paths, in this embodiment, in order to secure the flow rate of the extinguishing agent flowing down from the extinguishing agent containers 3 and 4 to the discharge means 7. Two flow paths 21a and 21b are formed. In the remaining part of the extinguishing agent conduit 8, the flow rate of the extinguishing agent is secured in one flow path. Thus, by forming a part of the pressure source fluid conduit 5 and the extinguishing agent conduit 8 in one collective pipe 21, the extinguishing agent is connected to connect the pressure source fluid conduit 5 or the extinguishing agent conduit 8. It is not necessary to newly process the containers 3 and 4, and the configuration is simplified.

  One end and the other end of the second pressure source fluid conduit 5 have bottoms extending in the axial direction of the extinguishing agent containers 3 and 4 from the other end of the extinguishing agent containers 3 and 4 to the vicinity of the one end. A cylindrical siphon tube 22 is provided. One end of the siphon tube 22 in the axial direction is opened and connected to the second pressure source fluid conduit 5, and a communication hole 23 penetrating radially inward and outward is formed at the other end in the axial direction. In a state where the fire extinguishing agent containers 3 and 4 are standing, an amount of the fire extinguishing agent that is disposed at a position where the communication hole 23 of the siphon tube 22 is higher than the water level of the extinguishing agent is stored in the extinguishing agent containers 3 and 4. ing. In other words, the communication hole 23 is disposed so that the stored extinguishing agent does not enter the communication hole 23 in a state where the extinguishing agent containers 3 and 4 are standing.

  The discharge means 7 includes a discharge means housing 25, an on-off valve portion 26, a supply pipe 27, a lever 28, and an injection nozzle 29. The discharge means housing 25 is painted black, for example, and is made of aluminum. However, the material is not limited to black, and may be red, blue, yellow, and green. The material is not limited to aluminum, and may be a resin. The discharge means housing 25 includes a housing body 25a and a gripping portion 25b. The housing body 25a is formed in a substantially rectangular shape having a long rectangular shape, and one end portion in the longitudinal direction is opened in the longitudinal direction. Hereinafter, the axis of the cylindrical portion at one end in the longitudinal direction may be referred to as the axis of the housing body 25a.

  A space is formed in the housing body 25a from one end in the longitudinal direction to the vicinity of the other end. One surface portion of the casing body 25a is open near the other end in the longitudinal direction. Protrusions 159 are formed on two surface portions adjacent to one surface portion where the opening is formed in the vicinity of the other end portion in the longitudinal direction of the housing body 25a. The protruding portion 159 protrudes in a direction away from the surface portion. The protrusion 159 is different in color from the remaining portion of the discharge means 7 except for this. For example, red, blue, yellow and green are applied. However, the colors are not limited to those different from each other and may be the same color. The grip portion 25b is generally formed in a U shape, and one end portion 160a thereof is integrally formed with the other end portion in the longitudinal direction of the housing body 25a, and the other end portion 160b is integrally formed with the middle portion in the longitudinal direction of the housing body 25a. It is formed to be grippable.

  The on-off valve portion 26 has a valve passage forming portion 26a formed in a substantially cylindrical shape and a valve body 26b. The valve passage forming portion 26a is disposed on one end side in the longitudinal direction in the housing main body 25a so that the axis thereof coincides with the axis of the housing main body 25a. The valve passage forming portion 26a is disposed such that an opening at one end in the axial direction thereof communicates with an opening at one end in the longitudinal direction of the housing body 25a, and a valve passage 26c is formed in the inside thereof. The valve body 26b is formed in a rod shape, and is inserted in a state where a seal is achieved at the other axial end of the valve passage forming portion 26a. The valve body 26b is configured to be slidable in the axial direction of the valve passage forming portion 26a, and is configured to be able to open and close the valve passage 26c by being slidably displaced in the axial direction. The valve passage forming portion 26a is formed so that the supply pipe 27 can be connected, and the inside of the connected supply pipe 27 and the valve passage 26c are connected.

  The supply pipe 27 has one end connected to the extinguishing agent conduit 8 and the other end connected to the valve passage forming portion 26a. The supply pipe 27 is configured so that the extinguishing agent flowing down the extinguishing agent conduit 8 can be led to the valve passage 26c. The supply pipe 27 is provided by being fitted to the grip portion 25b. A part of the lever 28 is disposed inward in the vicinity of the other end in the axial direction of the housing body 25a, and the remaining portion protrudes from the opening of the housing body 25a. The lever 28 is formed so that the remaining portion can be gripped together with the gripping portion 25b, and can be displaced in a gripped state, specifically, can be angularly displaced. The valve body 26 b is engaged with the lever 28 and is configured to be slidable in the axial direction of the housing body 25 a in conjunction with the displacement of the lever 28. That is, when the lever 28 is angularly displaced, the valve body 26b is slid in the axial direction of the valve passage forming portion 26a, that is, in the longitudinal direction of the housing body 25a, so that the valve passage 26c can be opened and closed.

  FIG. 20 is an enlarged view showing the injection nozzle 29. An injection nozzle 29 is formed at one end in the axial direction of the housing body 25a. The injection nozzle 29 is configured to be able to diffuse the extinguishing agent. More specifically, the injection nozzle 29 has a nozzle housing part 70 and a nozzle shaft body 71. The nozzle housing portion 70 is formed in a cylindrical shape, and an inward flange portion 72 that protrudes inward over the entire circumference in the circumferential direction is formed on the inner circumferential portion of the intermediate portion in the axial direction. A part of the inner peripheral portion of the inward flange portion 72 is formed in a tapered shape whose diameter decreases from the other axial end portion of the nozzle housing portion 70 toward one end portion. One end of the nozzle casing 70 in the axial direction is attached to one end in the axial direction of the casing body 25a of the discharge means 7 so as to be displaceable in the axial direction, and the inner peripheral portion of the other end is connected to the other end in the axial direction. It is formed in a taper shape that decreases in diameter toward one end. The nozzle housing part 70 is screwed to the housing body 25a and is mounted so as to be displaceable in the axial direction. The axes of the nozzle casing 70 and the casing main body 25a coincide with each other.

  The nozzle shaft body 71 includes a shaft base portion 73, a shaft rod portion 74, and a flow guide portion 75. The shaft base portion 73 is formed in a disc shape. The shaft base portion 73 is formed with a plurality of descending holes 76 penetrating in the axial direction at equal intervals around the axis. The shaft rod portion 74 is generally formed in a cylindrical shape, and one end portion in the axial direction thereof is provided integrally with the shaft base portion 73. A flow guide portion 75 is integrally provided at the other axial end portion of the shaft rod portion 74. The flow guide portion 75 includes a first flow guide portion 75a formed in a columnar shape, a second flow guide portion 75b formed in a hemispherical shape, and a first flow guide portion 75a and a second flow guide portion 75b. And three flow guiding portions 75c. The first flow guide portion 75 a is smaller in diameter than the second flow guide portion 75 b and larger in diameter than the shaft rod portion 74. The first flow guide portion 75 a is formed to have a smaller diameter than the inner peripheral portion of the inward flange portion 72. The third flow guiding portion 75c is formed in a taper shape whose diameter decreases from the second flow guiding portion 75b toward the first flow guiding portion 75a. The axes of the first to third flow guiding portions 75a to 75c are coincident with each other, and are formed so that the axes of the shaft base portion 73, the shaft rod portion 74, and the flow guiding portion 75 are coincident.

  The nozzle shaft body 71 is disposed such that the shaft rod portion 74 passes through the inward flange portion 72. The shaft rod portion 74 is inserted into the inward flange portion 72 with a radial interval. A flange portion 77 that protrudes inward over the entire circumference in the circumferential direction is formed on the inner circumference at one end in the axial direction of the housing body 25a. The shaft base portion 73 of the nozzle shaft body 71 is disposed in the housing main body 25 a so as to abut on the flange portion 77. The axis of the shaft base portion 73 and the axis of the housing portion 25a of the discharge means 7 are coincident with each other.

  FIG. 21 is a plan view showing the on-off valve 9. FIG. 22 is a view showing the on-off valve 9 as viewed by cutting along the cutting line CC in FIG. FIG. 23 is a view showing the on-off valve 9 as viewed by cutting along the cutting line DD in FIG. The on-off valve 9 is connected to the first pressure source fluid conduit 5 a and is provided at the opening of the pressure source fluid container 2. The on-off valve 9 is formed with a flow path that is continuous with the pressure source fluid flow path 30 and the inside of the pressure source fluid container 2, and can be opened and closed. The on-off valve 9 basically includes a handle 31 and an on-off valve body 32, and the on-off valve body 32 is configured to open and close the flow path by operating the handle 31.

  More specifically, the on-off valve 9 includes a first flow path forming portion 91, an on-off valve portion 92, and a second flow path forming portion 93, which are integrally formed. A first flow path 94 through which the compressed fluid can flow is formed in the first flow path forming portion 91. The first flow path forming portion 91 is connected to the opening of the pressure source fluid container 2. The first flow path forming portion 91 has an axis L1, and the first flow path 94 is formed around this axis. The first flow path 94 is formed so that the compressed air stored in the pressure source fluid container 2 flows down. The on-off valve portion 92 includes a housing portion 95, a handle 31, an on-off valve body 32, a stem 97, a spring member 98, and a spring pressing member 99.

  The housing portion 95 has an axis L2, and an on-off valve primary side port 100 and an on-off valve body accommodation hole 101 are formed around the axis L2. The casing portion 95 has an opening / closing valve primary side port 100 formed at one end in the axial direction thereof, and an opening / closing valve body accommodating hole 101 formed at the other end, which are connected to each other. In the housing portion 95, the on-off valve primary side port 100 is connected to the first flow path 94, and the other axial end is opened in the axial direction. The on-off valve primary side port 100 is formed with a smaller diameter than the on-off valve body accommodating hole 101. An annular on / off valve seat 102 is formed in the housing portion 95 so as to surround the opening at which the on / off valve primary side port 100 faces the on / off valve body accommodation hole 101.

  The on-off valve body 32 is formed in a columnar shape, and an on-off valve groove 103 is formed on the outer peripheral portion from one end to the other end in the axial direction. The on-off valve body 32 is housed in the on-off valve body housing hole 101, and is provided in the housing portion 95 so as to be slidable in a direction parallel to the axis L2. The on-off valve body 32 is provided so as to be seated on the on-off valve seat 102. Specifically, the on-off valve body 32 is configured to be seated and separated by being displaced in a direction parallel to the axis L2.

  The stem 97 is formed in a substantially cylindrical shape, and is housed in the opening / closing valve body housing hole 102 so that one end in the axial direction can be brought into contact with the opening / closing valve 102 and can be slidably displaced in a direction parallel to the axis L2. Has been. One end of the stem 97 in the axial direction is provided so as to be slidable in a direction parallel to the axis L2 in a state where the casing portion 95 is sealed. The stem 97 has a second axial end projecting from the opening of the housing portion 95 in a direction parallel to the axis L2. The axes of the on-off valve body 32 and the stem 97 coincide with the axis L2.

  The handle 31 is generally formed in a truncated cone shape, and the stem 97 is displaceable in a direction parallel to the axis L2, and is inserted while being prevented from rotating around the axis L2. The handle 31 is disposed so as to cover the other axial end of the housing portion 95. A spring pressing member 99 is screwed to the other end of the stem 97 in the axial direction. The handle 31 is formed with an annular spring member accommodating space 104 around the other axial end of the stem 97 through which the handle 31 is inserted. A spring member 98 that is a compression coil spring is accommodated in the spring member accommodating space 104, one end in the axial direction thereof is in contact with the spring pressing member 99, and the other end is in contact with the handle 31. The axes of the handle 31 and the spring member 98 coincide with the axis L2. When arranged in this manner, the spring member 98 biases the handle 31 in a direction parallel to the axis L2 and toward the housing portion 95.

  The second flow path forming portion 93 has an axis L3, and the second flow path 105 is formed around the axis L3. The second flow path forming portion 93 is connected to the pressure source fluid conduit 5. The second flow path forming portion 93 is formed to guide the compressed fluid flowing down the second flow path 105 to the pressure source fluid conduit 5 in a state where the pressure source fluid conduit 5 is connected. A communication path 106 that connects the on-off valve body accommodation hole 101 and the second flow path 105 is formed across the open / close valve section 92 and the second flow path forming section 93. The communication passage 106 is formed so that when the on-off valve body 32 is separated from the on-off valve seat 102, the compressed air guided through the on-off valve primary side port 100 and passing through the on-off groove 103 is guided to the second flow path 105. The

  FIG. 24 is a perspective view showing the respiratory apparatus 10. FIG. 25 is a cross-sectional view showing a cross section of the respiratory device 10. FIG. 26 is a perspective view showing a part of the pulmonary force valve 35 and the exhalation valve 36 included in the respiratory apparatus 10 in a cutaway manner. The respirator 10 as an air supply means is configured to be able to supply compressed air decompressed by the pressure reducing valve 6. The respiratory apparatus 10 includes a face body 37, an air supply conduit 38, a lung force valve 35, and an exhalation valve 36. The face body 37 is configured to be attachable to the face of the wearer, and is formed so as to cover the wearer's eyes, nose, and mouth when worn. The air supply conduit 38 connects the face body 37 and the pressure reducing valve 6. The lung force valve 35 is interposed in the air supply conduit 38 and is configured to be able to adjust the opening degree of the air supply passage 39 formed in the air supply conduit 38. The lung force valve 35 is configured to adjust the opening degree of the air supply passage 39 based on the pressure of air in the face body 37. Specifically, the air supply passage 39 is opened when the pressure of the air in the face body 37 is less than a positive pressure that is a predetermined pressure, and the air supply passage 39 is closed when the pressure exceeds the positive pressure. The exhalation valve 36 is configured to adjust the opening of the exhalation passage 40 formed in the face body 37 based on the pressure of air in the face body 37. Specifically, when the pressure of the air in the face piece 37 exceeds the positive pressure, the expiration passage 40 is opened, and when the pressure of the air in the face piece 37 is equal to or less than the positive pressure, the expiration passage 40 is closed.

  FIG. 27 is a cross-sectional view schematically showing the check valve 11. The check valve 11 serving as a backflow preventing means is interposed in the pressure source fluid conduit 5 so that the fire extinguishing agent flows back through the pressure source fluid conduit 5 from the fire extinguishing agent containers 3 and 4 toward the pressure source fluid container 2. Configured to prevent that. The check valve 11 is provided downstream of the pressure reducing valve 6 in the A1 direction. The check valve 11 includes a check valve body 41 and a check valve spring member 42. The check valve body 41 is disposed in the pressure source fluid conduit 5 and is configured to be able to open and close the pressure source fluid flow path 30. The check valve spring member 42 is arranged so as to urge the check valve body 41 with a resilient force toward the upstream side in the A1 direction and to displace the check valve body 41 in a direction to close the pressure source fluid flow path 30. Is done. Further, the check valve body 41 is disposed so as to receive the pressure of the compressed air flowing down the pressure source fluid conduit 5 and the pressure of the extinguishing agent flowing back. With this configuration, the check valve body 41 maintains the pressure source fluid flow path 30 in a closed state even when the downstream side and the upstream side in the A1 direction have the same pressure with respect to the check valve body 41. As a result, the pressure received from the compressed air can be maintained at least higher than the pressure received from the extinguishing agent, and the function of preventing backflow is high.

  FIG. 28 is a cross-sectional view schematically showing the flow-down prevention valve 12. The flow prevention valve 12 that is a flow prevention means is configured to prevent the compressed air from flowing down the extinguishing agent conduit 8. The flow prevention valve 12 is provided at one end and the other end of the first extinguishing agent conduit portion 8a, and based on the amount of the extinguishing agent stored in the extinguishing agent containers 3 and 4, the first extinguishing agent conduit portion. 8a is configured to open and close the opening at one end and the other end. In this embodiment, when the extinguishing agent stored in the extinguishing agent containers 3 and 4 is exhausted, the float 43 having a density lower than that of the extinguishing agent closes the opening of one end and the other end of the first extinguishing agent conduit 8a. (The float 43 shown by the two-dot chain line in FIG. 28) prevents the compressed air from flowing down the extinguishing agent conduit 8.

  FIG. 29 is a front view showing the container holder 13 with the cover bodies 46 and 47 open. FIG. 30 is a left side view showing the container holder 13 as viewed from the left side of FIG. FIG. 31 is a plan view showing the container holder 13 as seen from the upper side in FIG. FIG. 32 is a bottom view showing the container holder 13 as seen from the lower side of FIG. 33 is a rear view showing the container holder 13 as seen from the back side of the sheet of FIG. FIG. 34 is a view showing a cross section of the cover bodies 46 and 47. FIG. 35 is a front view showing the container holder 13 with the cover bodies 46 and 47 closed. FIG. 36 is a left side view showing the container holder 13 as viewed from the left side of FIG. FIG. 37 is a plan view showing the container holder 13 as viewed from the upper side in FIG. FIG. 38 is a bottom view showing the container holder 13 as viewed from the lower side in FIG. 39 is a rear view showing the container holder 13 as seen from the back side of the sheet of FIG. FIG. 40 is a front view showing a state in which the pressure source fluid container 2 and the fire extinguishing agent containers 3 and 4 are attached to the container holder 13. Since the container holder 13 has a bilaterally symmetric structure in the plane of FIG. 29 and FIG. 35, the container holder 13 viewed from the right side of FIG. 29 and FIG. 35 is the container viewed from the left side of FIG. 29 and FIG. It is symmetrical with respect to the holder 13.

  The container holder 13 includes a frame body 45, two cover bodies 46 and 47, and a back plate 150. The frame 45 is configured such that the pressure source fluid container 2 and the two extinguishing agent containers 3 and 4 can be disposed in a standing state. Specifically, the two extinguishing agent containers 3 and 4 are arranged with a space therebetween in a state of being arranged in the frame body 45, and are arranged side by side so that the axes thereof are parallel to each other. The pressure source fluid container 2 is disposed between the two extinguishant containers 3 and 4, and the axis thereof is disposed in parallel to the axes of the two extinguishant containers 3 and 4. The pressure source fluid container 2 and the two extinguishant containers 3 and 4 are disposed such that their axes are located at the vertices of an isosceles triangle (shown by a one-dot chain line in FIG. 37). The frame body 45 is configured so that the pressure source fluid container 2 and the two extinguishing agent containers 3 and 4 can be disposed at such positions. Therefore, in FIG. 40, two fire extinguishing agent containers 3 and 4 are arranged symmetrically with respect to the axis L7 of the pressure source fluid container 2.

  The frame body 45 is made of, for example, stainless steel, and is formed so that the pressure source fluid container 2 and the two extinguishing agent containers 3 and 4 are detachable. However, the frame body 45 is not limited to the one made of stainless steel. The frame 45 is configured such that the pressure source fluid container 2 and the two extinguishing agent containers 3 and 4 can be held in a standing state. In other words, the frame body 45 is configured to be able to stand by itself while the pressure source fluid container 2 and the two extinguishant containers 3 and 4 are standing. In a state where the container holder 13 is self-supporting, the axes of the pressure source fluid container 2 and the extinguishing agent containers 3 and 4 extend vertically.

  The frame body 45 includes a leg portion 45a that abuts against a horizontal surface such as a floor in a standing state, and a trunk portion 45b that is connected to the leg portion 45a and detachably holds the containers 2, 3, and 4. Composed. In the state where each container 2, 3 and 4 is mounted on the body portion 45b, the leg portion 45a of the frame body 45 and each container 2, 3 and 4 are arranged at intervals and in a standing state, Each container 2, 3, and 4 is arrange | positioned upwards at intervals with respect to the leg part 45a.

  In the standing state, the on-off valve 9 and the pressure reducing valve 6 are disposed below the pressure source fluid container 2 and above the leg portion 45 a of the frame body 45. The pressure source fluid and fire extinguishing agent conduits 5, 8, the pressure reducing valve 6, the on-off valve 9, and the check valve 11 are also disposed above the leg portion 45a. As a result, the containers 2, 3 and 4, the pressure source fluid conduit 5, the extinguishing agent conduit 8, the pressure reducing valve 6, the on-off valve 9 and the check valve 11 are prevented from coming into direct contact with the floor. Damage can be prevented.

  The frame body 45 directly or indirectly supports the pressure source fluid conduit 5, the pressure reducing valve 6, the fire extinguishing agent conduit 8, the on-off valve 9, and the check valve 11. In the present embodiment, the respective configurations 5, 6, 8, 9, and 11 are supported via the back plate 150. The back plate 150 is formed in a plate shape, and faces the user's back when the user wears the fire extinguishing device 1. Specifically, the back plate 150 is disposed on the opposite side to the axis of the pressure source fluid container 2 with respect to the virtual plane including the two axes of the extinguishant containers 3 and 4, and is parallel to the virtual plane. Extend to. The back plate 150 is mounted on the upper end portion and the lower end portion of the frame body 45 in a standing state, so that the back plate 150 is stably fixed to the frame body 45.

  The frame body 45 is provided with a shoulder belt 48 for the user to carry the fire extinguishing device 1 on the back. The two extinguishing agent containers 3 and 4 are arranged such that the width of the fire extinguishing apparatus 1 is narrower than the shoulder width in a state where the user carries the fire extinguishing apparatus 1 on the back. Here, the horizontal width is a direction in which the extinguishant containers 3 and 4 are spaced from each other, and the base of an isosceles triangle connecting the axes of the three containers 2 to 4 extends in a direction perpendicular to the axis. Direction.

  FIG. 34 is a cross section obtained by cutting along a virtual plane perpendicular to the axis of the cover bodies 46 and 47. The two cover bodies 46 and 47 are formed in a semi-cylindrical shape, and are provided on the frame body 45 so as to be rotatable. The semi-cylindrical shape is synonymous with a cylinder cut by a virtual plane including its axis. The cover bodies 46 and 47 are made of, for example, FRP, and the surfaces thereof are painted with red, gray or black. However, the cover bodies 46 and 47 are not limited to those made of such materials and colors. For example, the cover bodies 46 and 47 may be formed of acrylic-modified high-impact vinyl chloride whose material itself has a color such as red or black. The two cover bodies 46 and 47 are configured to be able to cover the two extinguishing agent containers 3 and 4 attached to the frame body 45, respectively. By rotating one cover body 46, the covering and exposure of one extinguishant container 3 can be switched, and by rotating the other cover body 47, the covering of the other extinguishing agent container 4 can be switched. And the exposure can be switched. Specifically, the cover bodies 46 and 47 are generally formed in a semi-cylindrical shape. The cover bodies 46 and 47 are formed to have a larger diameter than the extinguishing agent containers 3 and 4, and one end in the circumferential direction thereof is rotatably provided on the body portion 45 b of the frame body 45. Specifically, it is provided so as to be rotatable around an axis parallel to the axis of the extinguishant containers 3 and 4. The cover bodies 46 and 47 can cover and expose the extinguishing agent containers 3 and 4 by rotating them.

  The alarm 190 is provided by branching from the pressure source fluid conduit 5 interposed between the on-off valve 9 and the pressure reducing valve 6. The notification device 190 is configured to notify the wearer when the pressure of the compressed air flowing down from the opening / closing valve 9 to the pressure reducing valve 6 is equal to or lower than a predetermined pressure. The notification device 190 notifies the wearer, for example, by a horn. Thus, the wearer can know the pressure of the compressed air in the pressure source fluid container 2, that is, the remaining amount. Therefore, it is possible to suppress the wearer from having difficulty breathing during use.

  The pressure indicator 191 is provided to be branched from the pressure source fluid conduit 5 interposed between the on-off valve 9 and the pressure reducing valve 6. The pressure indicator 191 is configured to measure the pressure of the compressed air flowing down from the on-off valve 9 to the pressure reducing valve 6 and display the pressure. Thus, the wearer can know the pressure of the compressed air in the pressure source fluid container 2, that is, the remaining amount, and can know the remaining time during which the extinguishing agent can be discharged and the time during which breathing is possible.

  Below, operation | movement of the fire extinguishing apparatus 1 comprised in this way is demonstrated. By operating the handle 31 of the on-off valve 9, the flow path in the on-off valve 9 is opened, and the compressed air flows through the pressure source fluid flow path 30. Specifically, when the handle 31 is rotated, the stem 97 is displaced, and the on-off valve body 32 is separated from the on-off valve seat 102. As a result, the first flow path 94 and the second flow path 105 communicate with each other, and the compressed air in the pressure source fluid container 2 flows to the pressure source fluid flow path 30 via the on-off valve 9. The compressed air flows down the pressure source fluid conduit 5, and the pressure is reduced by the pressure reducing valve 6. After depressurization, the compressed air is guided to the extinguishing agent containers 3 and 4 through the pressure source fluid conduit 5 and the siphon tube 22. The extinguishing agent stored in the extinguishing agent containers 3 and 4 receives pressure from the compressed air that is introduced, and is discharged from the extinguishing agent containers 3 and 4 to the extinguishing agent conduit 8. The fire extinguishing agent to be discharged is guided to the discharge means 7 through the extinguishing agent conduit 8. The wearer uses the discharge means 7 to discharge the introduced extinguishing agent and extinguish the fire.

  When the handle 31 is rotated around the axis L 2, the on-off valve 9 rotates in conjunction with the stem 97, and is parallel to the axis L 2, so that the on-off valve body 32 is displaced away from the valve seat 102. Thereby, the on-off valve primary side port 100 and the second flow path 105 communicate with each other, and the compressed air flows down. When the handle 31 is rotated to the other side around the axis L2, the stem 97 is rotated in conjunction with it, and is displaced in a direction parallel to the axis L2 so that the on-off valve body 32 is seated. When the on-off valve body 32 is seated on the on-off valve seat 102 by being displaced in this way, the on-off valve primary side port 100 and the second flow path 105 are shut off, and the supply of compressed air stops.

  The pressure reducing fluid 6 can guide the pressure source fluid whose pressure is kept constant to the extinguishing agent container. As a result, the discharge amount of the extinguishing agent discharged from the extinguishing agent containers 3 and 4 to the extinguishing agent conduit 8 is made constant regardless of the remaining amount of compressed air, and the discharge amount of the extinguishing agent discharged from the discharge means 7 is made constant. Can be constant. Specifically, pressure reduction is performed by the pressure control valve unit 111. The pressure receiving body 116 receives the pressure of the compressed air on the secondary side, adjusts the opening of the orifice 129 based on this pressure, and maintains the pressure on the secondary side at a constant pressure. The pressure is reduced in this way.

  The compressed gas, which is a mixed gas containing at least oxygen, can be decompressed by the decompression valve 6 and supplied to the face body 37 via the air supply conduit 38. The wearer can inhale the predetermined pressure (positive pressure) air to be supplied by wearing the face body 37. This allows the wearer to breathe.

  The check valve 11 can prevent the reverse flow of the extinguishing agent from the extinguishing agent containers 3 and 4 toward the pressure source fluid container 2 at a position downstream of the decompression unit in the A1 direction. In other words, when the extinguishing agent flows backward from the extinguishing agent containers 3 and 4 toward the pressure source fluid container 2, the check valve closes the pressure source fluid passage 30 and prevents the extinguishing agent from flowing backward. This can prevent the extinguishing agent from flowing backward and reaching the pressure reducing valve 6.

  The flow-down prevention valve 12 can prevent the compressed air from flowing down the extinguishing agent conduit 8 and can be prevented from being led to the discharge means 7 and discharged. Specifically, when the extinguishing agent stored in the extinguishing agent containers 3 and 4 is exhausted, the flow-off prevention valve 12 closes the opening at one end and the other end of the extinguishing agent conduit 8, and the compressed air is extinguished. The flow of the working conduit 8 is prevented from flowing down. Thereby, it is possible to prevent the compressed air from being discharged from the discharge means 7.

  In the fire extinguisher 1, an aqueous solution in which a resin whose viscosity increases with increasing temperature is dissolved is used as the fire extinguisher. When a fire extinguisher is discharged toward the fire by this, the temperature of the fire extinguisher to be released increases and its viscosity increases. A fire extinguisher whose viscosity has been increased is less likely to flow than water, and can be prevented from spreading due to the flow of the fire extinguisher adhering to the fire extinguishing target. When the fire extinguisher conduit flows down, the temperature of the fire extinguisher is lower than after discharge, so that the viscosity is low, and the pressure required to pump the fire extinguisher through the extinguishant conduit 8 to the discharge means 7 is high. Lower.

  The pressure source fluid container and the fire extinguisher container can be held in the standing state by the frame 45 in which the pressure source fluid container 2 and the fire extinguishing agent containers 3 and 4 are disposed. Further, the cover bodies 46 and 47 provided on the frame body 45 are rotated to cover and protect the extinguishing agent containers 3 and 4 and the extinguishing agent containers 3 and 4 are exposed and removable. Can be switched.

  FIG. 41 is a view showing a state in which the nozzle housing 70 is displaced with respect to the housing body 25 a of the discharge means 7. When the lever 28 is angularly displaced, the discharge means 7 displaces the valve body 26b in the axial direction and opens the valve passage 26c. When such an operation is performed in a state where the handle 31 of the on-off valve 9 is operated and the compressed air is guided to the pressure source fluid flow path 30, the valve passage 26 c is connected via the extinguishant conduit 8 and the supply pipe 27. The introduced extinguishing agent reaches the injection nozzle 29 through the valve passage 26c, and is diffused and injected. Specifically, as shown in FIG. 20, in a state where one end of the casing body 25 a in the axial direction and the inward flange portion 72 are in contact with each other, the extinguishing agent passes through the flow down hole 76 and the inward flange portion 72. Then, it hits one end of the first flow guiding portion 75a and is diffused and discharged outward. Further, when the nozzle housing 70 is displaced as shown in FIG. 41 and the first flow guide portion 75a is inserted into the inward flange portion 72, the fire extinguishing agent is gradually loosened radially outward by the third flow guide portion 75c. Is diffused. By displacing the nozzle housing 70 in this way, the range in which the extinguishing agent is diffused can be changed.

  FIG. 42 is a flowchart showing a procedure for supplying the extinguishing agent to the extinguishing agent containers 3 and 4. When the lid 20 of the extinguishant containers 3 and 4 is opened, the liquid supply process starts and the process proceeds to step s1. In step s1, the extinguisher concentrate is supplied to the extinguishant containers 3 and 4. When the supply ends, the process proceeds to step s2. In step s2, water is supplied to dilute the fire extinguisher concentrate. The water is supplied using, for example, a hose. When supplying water, the hose supply port is submerged in the extinguisher concentrate so that air bubbles do not intervene in the extinguisher concentrate. When the extinguisher concentrate is diluted, the process proceeds from step s2 to step s3. In step s 3, the extinguishant containers 3 and 4 are sealed with the lid 20. When sealed, the liquid supply process ends.

  Below, the effect which the fire extinguishing apparatus 1 comprised in this way has is demonstrated. According to the fire extinguisher 1 of the present embodiment, the extinguishing agent stored in the extinguishing agent containers 3 and 4 can be discharged by compressed air, so that it is like the conventional two-fluid fire extinguishing device of the second technique. In addition, the fire extinguisher can be released with a small amount of compressed air without using a large amount of air to spray water. Accordingly, the volume of compressed air to be stored in the pressure source fluid container 2 can be reduced as compared with the conventional two-fluid fire extinguishing apparatus, and the weight of the pressure source fluid container 2 can be reduced. In the case of the pressure source fluid container 2 in which the same volume of compressed air is stored, the pressure of the compressed air can be reduced, and the pressure resistance performance of the pressure source fluid container 2 does not need to be increased. The pressure source fluid container can be made thinner than the two-fluid fire extinguisher of the above technique. Thereby, the weight of the pressure source fluid container 2 can be reduced. Thus, the weight of the fire extinguishing apparatus 1 can be reduced by reducing the weight of the pressure source fluid container 2.

  Further, in the fire extinguisher 1, the pressure of the compressed air is reduced by the pressure reducing valve 6, and the reduced compressed air is guided to the extinguishing agent containers 3 and 4 through the pressure source fluid conduit 5. As a result, fluctuations in the pressure of the compressed air introduced to the extinguishant containers 3 and 4 can be suppressed, and fluctuations in the discharge amount of the extinguishant discharged from the discharge means 7 can be suppressed. In this way, by reducing the pressure of the compressed air and introducing it to the extinguishing agent containers 3 and 4, fluctuations in the discharge amount of the extinguishing agent are suppressed, and stable discharge of the extinguishing agent is realized without depending on the discharge time. it can. By depressurizing the pressure of the compressed air, it is not necessary to improve the pressure resistance performance of the extinguishant containers 3 and 4 and is thinner than the conventional fire extinguishing apparatus of the extinguishing agent containers 3 and 4. Can be achieved. Thereby, the weight of the fire extinguishing apparatus 1 can be reduced.

  Moreover, according to the fire extinguisher 1 of the present embodiment, the flow rate of the extinguishing agent discharged from the extinguishing agent containers 3 and 4 to the extinguishing agent conduit 8 by the pressure reducing valve 6 is set regardless of the remaining amount of compressed air. Can be constant. As a result, the amount of extinguishant discharged from the discharge means 7 through the extinguishant conduit 8 can be made constant. In the conventional fire extinguishing apparatus according to the first and second techniques, the discharge is performed based on the internal pressure of the extinguishant containers 3 and 4, so the discharge amount depends on the extinguishing agent storage amount, in other words, the discharge time. . In the present invention, since the extinguishing agent is discharged by the compressed air maintained at a constant pressure, the extinguishing agent can be released at a constant discharge amount without depending on the discharge time. Thus, by making the amount of fire extinguisher released constant, the fire extinguisher 1 having a stable fire extinguishing capability in which the amount of fire extinguisher released does not depend on the release time can be realized.

  Further, according to the fire extinguisher 1 of the present embodiment, the compressed air stored in the pressure source fluid container 2 by the respirator 10 is changed to air that has been reduced to a predetermined pressure (positive pressure) in the face body 37. The wearer who supplies air and wears the face body 37 can inhale. This allows the wearer to breathe with the supplied air. Thus, by using the compressed air for discharging the extinguishing agent from the extinguishing agent containers 3 and 4 for supplying air to the wearer, a container for newly storing the compressed air only for the air supply There is no need to provide. As a result, it is possible to realize the fire extinguishing apparatus 1 capable of extinguishing and supplying air and capable of reducing the weight.

  Further, according to the present invention, the compressed air is decompressed and guided from the pressure source fluid container 2 to the extinguishing agent containers 3 and 4, so that the fire extinguishing is performed from the pressure source fluid container 2 as compared with the conventional fire extinguishing apparatus of the first technique. A small amount of compressed air is introduced into the agent containers 3 and 4. Therefore, a larger amount of compressed air than the conventional fire extinguishing apparatus 1 of the first technology can be supplied to the wearer by the respirator 10. As a result, the wearer can stay at the fire site for a longer period of time than that of the conventional first technique and perform fire extinguishing activities without worrying about oxygen deficiency.

  Further, according to the fire extinguishing apparatus 1 of the present embodiment, the check valve 11 can prevent the fire extinguishing agent from flowing back and reaching the pressure reducing valve 6. As a result, the fire extinguishing agent is guided to the respiratory organ and is prevented from being discharged to the face body 37 through the lung force valve 35. This allows the wearer to inhale with peace of mind using the respirator 10. In this way, the compressed air stored in the pressure source fluid container 2 can realize the fire extinguishing apparatus 1 that can supply the air that can be inhaled by the wearer with peace of mind and can discharge the extinguishing agent from the discharge means 7. .

  Further, according to the fire extinguisher 1 of the present embodiment, when there is no extinguishing agent that can be discharged from the extinguishant containers 3 and 4 by the flow-down prevention valve 12, the compressed air guided to the extinguishing agent containers 3 and 4 is reduced. The fire extinguishing agent conduit 8 flows down and can be prevented from being discharged from the discharge means 7. After the extinguishing agent is exhausted, the compressed air in the pressure source fluid container 2 is wasted by continuing to release the compressed air. By using the flow prevention valve 12 to prevent the discharge of compressed air, such waste of compressed air can be suppressed.

  In the case of having the respirator 10, after the extinguishing agent is exhausted, by suppressing the waste of compressed air, the time during which air can be supplied from the air supply means is extended as compared with the case where the flow prevention valve 12 is not provided. be able to. As a result, it is possible to stay at the fire site for a longer time than in the case where no flow prevention valve is provided. In a fire site, a fire extinguishing target may be searched while breathing using the respirator 10 to perform a fire extinguishing activity. Therefore, since the fire is extinguished while searching for the fire extinguishing object, it is important for the fire extinguishing apparatus having the air supply function to extend the time during which the air can be supplied.

  Moreover, according to the fire extinguisher 1 of the present embodiment, the extinguishing agent adhering to the fire extinguishing target flows by using an aqueous solution in which a resin whose viscosity increases with increasing temperature is used as the extinguishing agent. Spreading can be suppressed, and a larger amount of extinguishing agent than water can be stopped near the extinguishing target. When a large amount of fire extinguishing agent stops, the amount of heat absorbed can be increased, and the cooling effect on the fire extinguishing object can be enhanced. As a result, the fire extinguishing performance can be improved over the conventional fire extinguishing apparatuses of the first and second techniques. With the improvement of the fire extinguishing performance, it becomes possible to extinguish with a small amount of extinguishing agent, and the capacity of the extinguishing agent to be stored in the extinguishing agent containers 3 and 4 can be reduced. Thereby, the weight of the extinguishing agent containers 3 and 4 can be reduced, and the weight of the fire extinguishing apparatus 1 can be reduced. Further, when the fire extinguishing agent conduit 8 flows down, the viscosity of the extinguishing agent is small, so that the pressure required to discharge the extinguishing agent can be reduced, and the pressure of compressed air to be led to the extinguishing agent containers 3 and 4 can be reduced. Can be planned. As a result, it is not necessary to increase the pressure resistance of the extinguishant containers 3 and 4, and the thickness can be reduced.

  Moreover, according to the fire extinguishing apparatus 1 of the present embodiment, the pressure body fluid container 2 and the fire extinguishing agent containers 3 and 4 can be held in the standing state by the frame body 45. As a result, the pressure source fluid container 2 and the fire extinguisher container 3.4 can be prevented from being laid down on the ground, and the surface thereof being damaged. By preventing such damage, the containers 2 to 4 can be prevented from bursting.

  Moreover, according to the fire extinguisher 1 of the present embodiment, the communication hole 23 of the siphon tube 22 is disposed at a position higher than the water level of the extinguishing agent in a state where the extinguishing agent containers 3 and 4 stand. Thereby, it can suppress that compressed air penetrates a fire extinguisher. When the compressed air passes through the extinguishing agent, bubbles are interposed in the extinguishing agent flowing down the extinguishing agent conduit 8, and the extinguishing agent is hardly released. By suppressing the compressed air from passing through the extinguishing agent, such a problem is overcome and a stable release of the extinguishing agent is realized. Moreover, by forming the communication hole 23 in this way, it is possible to suppress the extinguishing agent from entering the siphon tube 22 and being guided to the pressure source fluid conduit 5.

  Further, according to the fire extinguishing apparatus 1 of the present embodiment, the pressure source fluid container 2 and the two fire extinguishing agent containers 3, 4 arranged in this way include the axis of the pressure source fluid container 2 and are in the lateral width direction. The object is disposed with respect to a virtual plane perpendicular to the object. Therefore, when the wearer holds the fire extinguisher 1 on the back, the center of gravity can be prevented from tilting to the left or right side. This can reduce fatigue during fire fighting activities. Also, by placing the base of the isosceles triangle connecting the axes of the three containers 2 to 4 so as to be longer than the other two sides, the center of gravity moves to the rear side when the wearer carries the back. Can prevent fatigue during fire fighting activities.

  Moreover, according to the fire extinguisher 1 of the present embodiment, a fire extinguisher in an aqueous solution in which a resin whose viscosity increases as the temperature rises dissolves as a fire extinguisher is jetted onto a fire extinguishing object, and the viscosity is increased and gelled. The fire extinguishing object can be covered with the agent. By covering the fire extinguishing object in this way, it is possible to reduce the oxygen concentration and temperature near the fire extinguishing object and to extinguish the fire.

  Moreover, according to the fire extinguishing apparatus 1 of the present embodiment, when the fire extinguisher is sealed in the fire extinguishing agent containers 3 and 4, it is performed so that no bubbles are interposed. Thereby, it can suppress that a fire extinguisher interposes a bubble and a fire extinguishing efficiency falls.

  Further, according to the fire extinguisher 1 of the present embodiment, the extinguishing agent containers 3 and 4 are covered by the cover bodies 46 and 47, and the pressure source fluid container 2 is exposed. By exposing the pressure source fluid container 2 in this manner, it can be urged that the pressure source fluid container 2 should be handled carefully.

  Further, according to the pressure reducing valve 6, the two spring members 122, 121 urge the elastic force to the pressure receiving body 116. As a result, a stable elastic force can be applied to the pressure receiving body 116, and sudden fluctuation of the pressure receiving body 116 can be suppressed.

  Moreover, according to the injection nozzle 29, a fire extinguisher can be sprayed to a ring shape and a fire extinguisher can be spread over a fire extinguishing target in a wide range. Further, by displacing the injection nozzle 29 in a direction parallel to the axis, the angle with respect to the axis to which the extinguishing agent is sprayed can be varied, and the extinguishing agent can be injected at an injection angle suitable for the fire extinguishing object.

  By using the fire extinguishing apparatus 1 of the present embodiment, an effective initial fire fighting operation can be performed with a small amount of fire extinguishing agent and compressed air in a place where it is difficult to secure water. For example, extinguishing fires on highways, forest fires, fires in crowded houses where vehicles cannot enter, fires in large-scale disaster areas, fires in areas where roads are severed, and fires in factories and buildings It is particularly effective.

  In the present embodiment, by using a fire extinguishing agent as described above, it can adhere to a fire extinguishing target, exhibit a reflaming prevention effect, and exhibit an excellent fire extinguishing capability. In the present embodiment, compressed air is stored in the pressure source fluid container 2 so that only the extinguishing agent flows through the extinguishing agent conduit 8 during the extinguishing operation, so that the compressed air is undesirably wasted. Thus, the remaining amount of air in the pressure source fluid container 2 that can be sucked by the wearer can be increased as much as possible. Further, by using the compressed air decompressed by the pressure reducing valve 6 to inject the fire extinguishing agent, the reaction force at the time of radiation is small, and it is possible to perform fire extinguishing activities while holding the hand gun as the discharge means 7 with one hand. . Moreover, the scattering of the fire extinguishing target object by the jet of fire extinguishing agent can be reduced.

  Moreover, by using the above-mentioned fire extinguishing agent, fire extinguishing efficiency can be increased even with a small amount of liquid, and the fire extinguishing capability can be improved with a weight capable of carrying the fire extinguishing apparatus 1 on the back. Further, when extinguishing the fire, only the extinguishing agent flows through the extinguishing agent conduit 8, so that even if the self-contained breathing apparatus and the pressure source fluid container 2 are used together, the capacity is prevented and the portability is increased. be able to. Further, by using the pressure reducing valve 6, the extinguishing agent containers 3 and 4 do not need to use a pressure container, and can be reduced in weight.

  FIG. 43 is a cross-sectional view schematically showing the flow prevention means 12A included in the fire extinguishing apparatus according to the second embodiment of the present invention. The fire extinguishing apparatus according to the present embodiment is similar to the fire extinguishing apparatus 1 according to the first embodiment described above. In the fire extinguishing apparatus of the present embodiment, the following flow prevention valve 12A is used instead of the flow prevention valve 12 described above.

  The flow prevention valve 12A is interposed in the second extinguishing agent conduit portion 8b. The flow prevention valve 12A can prevent the compressed air flowing down from the two extinguishing agent containers 3 and 4 from flowing down to the discharge means 7 and being released.

  More specifically, the flow prevention valve 12A includes a float 43 and a flange portion 51 formed on the second extinguishing agent conduit portion 8b. The float 43 is provided in the extinguishing agent conduit 8. The flange portion 51 is formed to project inward over the entire circumference of the inner peripheral surface portion of the second extinguishing agent conduit 8b. The inner peripheral portion of the flange portion 51 formed in this way is formed with a smaller diameter than the inner peripheral portion of the second extinguishing agent conduit portion 8b. The float 43 is formed in a spherical shape, for example, and is made of a material having a density lower than that of the extinguishing agent. The float 43 is formed larger than the inner diameter of the flange portion 51 and smaller than the inner diameter of the extinguishing agent conduit portion 8.

  When the stored extinguishing agent runs out, the float 43 moves in the extinguishing agent conduit 8 toward the flange portion 51 by compressed air. When the flange part 51 is reached, the float 43 sits on the flange part 51, closes the flow path formed in the extinguishant conduit 8 (the two-dot chain float in FIG. 43), and the compressed air becomes the second fire extinguisher. The flow down of the working conduit portion 8b is prevented.

  According to the fire extinguisher of this embodiment, it is not necessary to provide the flow-down prevention valve 12A in each fire extinguishing agent container 3, 4, and the configuration of the fire extinguisher can be simplified. Further, by providing the flow prevention valve 12A on the upstream side in the A1 direction from the branch point where the pressure source fluid conduit portion 5 branches, it is possible to prevent the compressed air from being guided to the extinguishing agent containers 3 and 4 at a time. Thus, it is possible to keep the right and left weight balance.

  FIG. 44 is a system diagram schematically showing the configuration of a fire extinguisher 1C according to the third embodiment of the present invention. FIG. 45 is a block diagram showing a configuration of the fire extinguishing apparatus 1C. The fire extinguisher 1C of the present embodiment is similar to the fire extinguisher 1 of the first embodiment described above. In the fire extinguisher 1C according to the present embodiment, the following overflow prevention means 201 is used instead of the above-described flow-down prevention valve 12, and the following check is used instead of the above-described check valve 11. A valve 11A is used.

  The overflow preventing means 201 is interposed in the first pressure source fluid conduit portion 5a. The overflow prevention means 201 is provided downstream in the A1 direction from the pressure reducing valve 6 and upstream in the A1 direction from the check valve 11A. Such overflow preventing means 201 causes the compressed air to flow down the first pressure source fluid conduit portion 5a when the flow rate of the compressed air flowing down the first pressure source fluid conduit portion 5a is equal to or higher than a predetermined set flow rate. Stop that.

  FIG. 46 is a cross-sectional view showing the check valve 11 </ b> A and the overflow preventing means 201. In the present embodiment, the check valve 11 </ b> A and the overflow prevention means 201 are incorporated into one valve complex 202. The valve complex 202 is interposed in a portion of the pressure source fluid conduit 5 on the downstream side in the A1 direction from the pressure reducing valve 6. In the valve complex 202, an inlet port 203 and an outlet port 204 are formed, and the housing portion 205 is fixed to the back plate 150. The pressure source fluid conduit 5 guides the compressed air decompressed by the pressure reducing valve 6 to the inlet port 203 of the valve complex 202, and the compressed air discharged from the outlet port 204 of the valve complex 202 for each extinguishing agent. Guide to containers 3 and 4.

  The overflow prevention means 201 includes a suppression structure 206 that suppresses the flow speed of compressed air at the start of flow and an overflow prevention structure 207 that closes the conduit when the flow speed of compressed air becomes excessive. The restraining structure 206 includes an inlet port forming portion 211, a restraining body 212, a first housing space forming portion 213, a restraining spring member 214, and a first housing space closing portion 215. The suppression structure 206 is formed in a part of the valve complex 202, and the first axis L11 is set.

  The inlet port forming portion 211 forms an inlet port 203 that is a space through which compressed air is guided from the pressure source fluid conduit 5. The first storage space forming portion 213 is connected to the inlet port 203 and forms a stepped columnar first storage space with the first axis L11 as the central axis. The first housing space is formed so that the diameter of the first axial direction one side region is smaller than the first axial direction other side region. Moreover, the conical surface which diameter-reduces is formed in the 1st axial direction one end part of the 1st storage space formation part 213 as it progresses to the 1st axial direction one side. The other end portion in the first axial direction of the first accommodating space forming portion 213 forms an opening that opens the first accommodating space to the other in the first axial direction. In the first housing space, the restraining body 212 and the restraining spring member 214 are housed, and the opening is closed by the first housing space closing portion 215.

  The suppressing body 212 includes a columnar base 220 and first to third protrusions 221, 222, and 223 that protrude from the base 220 in the radial direction over the entire circumference. The 1st protrusion part 221 continues to the axial direction one end part of the base 220, and external shape is formed in a substantially cone shape. The 2nd protrusion part 222 continues to the axial direction intermediate part of the base 220, and external shape is formed in a substantially cylindrical shape. The 3rd protrusion part 223 continues to the axial direction other end part of the base 220, and external shape is formed in a substantially cylindrical shape. The first projecting portion 221 and the second projecting portion 222 are arranged with an interval in the axial direction of the base portion 220. Further, the second projecting portion 222 and the third projecting portion 223 are arranged with an interval in the axial direction of the base portion 220. The third protrusion 223 has a larger diameter than the second protrusion 222.

  The suppressor 212 is arranged coaxially with the first accommodation space in a state accommodated in the first accommodation space, and is configured to be displaceable in the first axial direction. Further, the first projecting portion 221 and the second projecting portion 222 are disposed in the first axial direction one side region of the first accommodating space, and the third projecting portion 223 is disposed in the first axial direction other side region of the first accommodating space. Is done. Seal members 222 a and 223 a that are elastically contacted are provided on the outer peripheral surfaces of the second protruding portion 222 and the third protruding portion 223 over the entire inner peripheral surface of the first accommodating space forming portion 213. As a result, it is possible to realize the sealing of the compressed air in the space partitioned by the protrusions 222 and 223 in the first accommodation space. Further, the base portion 220 of the suppressing body 212 is connected to the insertion hole 224, which is inserted along the central axis from the one end surface in the axial direction to one region in the axial direction from the second protrusion 222, A through hole 225 that penetrates the region between the first protrusion 221 and the second protrusion 222 in the radial direction is formed. The insertion hole 224 and the through hole 225 are formed as pores that are sufficiently smaller than the diameter of the first accommodation space.

  Further, a sealing member 221 a that can be elastically contacted is provided on the conical surface of the first projecting portion 221 over the entire circumference of the first axial end surface of the first housing space forming portion 213. When the suppressing body 212 is pressed in one direction in the first axial direction, the conical surface of the first housing space forming portion 213 and the seal member 221a of the first projecting portion 221 of the suppressing body 212 come into contact with each other. The compressed air is prevented from passing between the conical surface of the accommodation space forming portion 213 and the first protrusion 221 of the suppressing body 212. At this time, the compressed air in the inlet port 203 passes through the first path passing through the insertion hole 224 and the through hole 225 of the base 220 and moves to the space between the first protrusion 221 and the second protrusion 222. .

  Further, when the restraining body 212 moves to the other side in the first axial direction, the conical surface of the first housing space forming portion 213 and the first projecting portion 221 seal member 221a of the restraining body 212 are separated from each other, thereby causing the first housing. The compressed air is allowed to pass between the conical surface of the space forming portion 213 and the first protrusion 221 of the suppressing body 212. At this time, the compressed air in the inlet port 203 passes through the first path passing through the insertion hole 224 and the through hole 225 of the base 220, and the conical surface of the first accommodation space forming part 213 and the first protrusion of the suppressing body 212. It passes through the second path passing between the first and second portions 221 and moves to the space between the first protruding portion 221 and the second protruding portion 222. The second path has a larger flow path cross-sectional area than the first path, and most of the compressed air passes through the second path.

  The restraining spring member 214 is a compression coil spring, and is disposed coaxially with the first housing space in a state of being housed in the first housing space, and is supported by the first housing space blocking portion 215. The restraining spring member 214 is disposed in the first axial direction other side region of the first accommodation space, one end in the first axial direction is in contact with the restraining body 212, and the other end in the first axial direction is closed in the first accommodation space. The part 215 is contacted. The restraining spring member 214 elastically presses the restraining body 212 toward one side in the first axial direction. Since the first housing space is partitioned by the third projecting portion 223 of the suppressing body 212, a seal is realized between one and the other of the third projecting portions 223 in the axial direction. In the present embodiment, the space on the other side in the first axial direction than the third projecting portion 223 and in which the restraining spring member 214 is disposed is maintained at atmospheric pressure. When the pressure in one space in the first axial direction from the third projecting portion 223 exceeds a predetermined first set value, the restraining body 212 is restrained by the force generated by the pressure difference on both sides of the third projecting portion 223. The spring member 214 is displaced to the other side in the first axial direction against the spring force.

  The overflow prevention structure 207 includes a second accommodation space forming portion 231, an overflow prevention valve body 232, an overflow prevention spring member 233, a second accommodation space closing portion 234, and an introduction space formation portion 235. Consists of. The overflow prevention structure 207 is formed in a part of the valve complex 202, and the second axis L12 is set.

  The second storage space forming portion 231 has the second axis L12 as a central axis, and is connected to the first storage space to form a stepped columnar second storage space. The second housing space is continuous with the space between the first projecting portion 221 and the second projecting portion 222 of the suppressing body 212 in the first housing space. Further, the second accommodation space is formed such that the diameter of the one side region in the second axial direction is larger than the intermediate region in the second axial direction. The other end in the axial direction of the second accommodation space forming portion 231 forms an opening that opens the second accommodation space to the other in the axial direction. In the second housing space, the overflow preventing valve body 232 and the overflow preventing spring member 233 are housed, and the opening thereof is closed by the second housing space closing portion 234.

  The overflow prevention valve element 232 includes a valve main body 241, a positioning piece 242, and a spring support piece 243. The valve body 241 is formed in a disk shape. The positioning piece 242 is provided to position the valve main body 241 and protrudes from the valve main body 241 in the thickness direction. The spring support piece 243 is provided to support the overflow preventing spring member 233 and protrudes from the valve body 241 to the other side in the thickness direction.

  The valve main body 241 is arranged coaxially with the second axis L12 while being accommodated in the second accommodation space, and is configured to be displaceable in the second axis direction. Further, the valve main body 241 is disposed in the second axial direction one side region of the second accommodation space, and is formed larger than the cross-sectional area of the second direction intermediate region of the second accommodation space. The positioning piece 242 forms a gap between the valve main body 241 and the end surface and inner peripheral surface of the second storage space forming portion 231 by contacting the one end surface in the second axial direction of the second storage space forming portion 231. To do. In this state, the gap between the valve main body 241 and the inner peripheral surface of the second storage space forming portion 231 is formed sufficiently smaller than the cross-sectional area of the second storage space.

  The overflow prevention spring member 233 is a compression coil spring, and is arranged coaxially with the second accommodation space in a state of being accommodated in the second accommodation space, and is supported by the second accommodation space forming portion 231. The overflow preventing spring member 233 is disposed in the second axial direction other side region of the second accommodation space, one end in the second axial direction is in contact with the suppressing body 212, and the other end in the second axial direction is the second accommodation. It contacts the space forming part 231. The overflow prevention spring member 233 elastically presses the overflow prevention valve body 232 toward one side in the second axial direction. At this time, the positioning piece 242 of the overflow prevention valve body 232 comes into contact with the end surface of the second storage space forming portion 231, so that the valve main body 241 is in contact with the end surface and the inner peripheral surface of the second storage space forming portion 231. Maintain a state where a gap is formed between them. Thereby, passage of compressed air from the 1st accommodation space to the middle field of the 2nd accommodation space is permitted.

  Further, when the pressure in the intermediate region is less than a predetermined second set value than the one side region in the axial direction of the second accommodating space, the valve main body 241 is overflowed by the force generated by the pressure difference between both sides of the valve main body. It is displaced to the other in the second axial direction against the spring force of the preventing spring member 233. The valve body 241 is seated on the valve seat formed at the stepped portion of the second space forming portion. As a result, the valve main body 241 seals between the region in the axial direction of the second housing space and the intermediate region, and the compressed air is prevented from flowing through the second housing space.

  Further, the intermediate region of the second storage space is connected to the other region in the second axial direction of the second storage space. The compressed air that has passed through the intermediate region of the second storage space passes through the filter member 245 and moves to the other region in the second axial direction of the second storage space. The introduction space forming unit 235 forms an introduction space. The introduction space is connected to a space sandwiched between the second projecting portion 222 and the third projecting portion 223 of the suppressing body 212 in the other region in the second axial direction of the second housing space and the first housing space.

  The check valve 11 </ b> A is realized by the check valve structure 301 in order to prevent the extinguishing agent from flowing backward from the extinguishing agent containers 3 and 4 toward the pressure source fluid container 2. The check valve structure 301 includes a check valve body 302, a third accommodation space forming portion 303, a check valve spring member 304, and an outlet port forming portion 305. The suppression structure 206 is formed in a part of the valve complex 202, and the third axis L13 is set.

  The third storage space forming unit 303 is connected to the introduction space and forms a third storage space having the third axis L13 as a central axis. The outlet port forming portion 305 is connected to the third accommodating space, and forms an outlet port 204 that is a space for guiding compressed air to the pressure source fluid conduit 5. The check valve body 302 is housed in the third housing space, and is configured to be able to open and close the communication path between the introduction space and the third housing space. The check valve spring member 304 elastically presses the check valve body 302 in a direction in which the check valve body 302 closes the communication path. Further, the check valve body 302 receives the pressure in the third accommodation space. With this configuration, the check valve body 302 keeps the communication path closed even if the pressure in the introduction space and the third accommodation space are the same. Further, when the pressure in the introduction space is higher than the pressure in the third storage space by a predetermined pressure, the pressure difference causes displacement against the spring force of the check valve spring force, and the communication path is opened. To do.

  In a pre-supply state in which compressed air is not supplied from the inlet port 203, the pressures in the first to third accommodation spaces and the ports 203 and 204 are atmospheric pressure. In this case, as shown in FIG. 46, in the restraining structure 206, the first protrusion 221 of the base 220 abuts on one end in the first axial direction of the first housing space forming portion 213. Further, in the overflow prevention structure 207, a gap is formed between the valve main body 241 and the end surface and inner peripheral surface of the second accommodation space forming portion 231. In the backflow prevention structure, the check valve body 302 closes the communication path.

  From this state, when compressed air is supplied to the inlet port 203, the compressed air passes through the insertion hole 224 and the through hole 225 of the base portion 220, so that the flow speed is weakened, and the first projecting portion 221 and the second The pressure in the space between the protrusions 222 gradually increases. This prevents the pressure difference between the two sides of the valve body 241 in the overflow prevention structure 207 from changing suddenly. A gap formed between the valve main body 241 and the second storage space forming portion 231 is maintained, and the compressed air flows through the second storage space into the introduction space.

  When the compressed air flows into the introduction space, the pressure in the introduction space increases. As a result, the check valve opens the communication path, and the compressed air flows to the outlet port 204 through the third accommodation space. Further, as the compressed air flows into the introduction space, the compressed air also flows through the second projecting portion 222 and the third projecting portion 223 in the first accommodation space. In this case, a pressure difference is generated in the space on both sides of the third projecting portion 223, and the suppressing body 212 moves to the other side in the first axial direction. Accordingly, the compressed air passes between the conical surface of the first housing space forming portion 213 and the first protrusion 221 of the suppressing body 212 in addition to the first path passing through the insertion hole 224 and the through hole 225 of the base portion 220. It passes through the second route and can move from the inlet port 203 to the second accommodation space.

  Thus, immediately after the compressed air is supplied, the compressed air passes through the first path. When the pressure in the introduction space becomes sufficiently high, the compressed air passes through the first path and the second path. When passing only the first path, the compressed air is prevented from rapidly flowing into the second accommodating space, and immediately after the compressed air is supplied, the second accommodating space is prevented from being closed by the valve body 241 of the overflow preventing structure 207. be able to.

  In a supply state where the compressed air is stably supplied, the compressed air passes through the first path and the second path. In this state, when the remaining amount of the extinguishing agent becomes zero and the compressed air is ejected from the radiation nozzle, the pressure on the downstream side of the valve body 241 of the overflow prevention structure 207 rapidly decreases, and the valve element is caused by the pressure difference. Closes the second accommodation space. Accordingly, it is possible to prevent the compressed air from being ejected from the radiation nozzle, and it is possible to prevent the waste of the compressed air. Moreover, the valve structure of this embodiment cancels supply of compressed air, and makes the inside of the inlet port 203 and the outlet port atmospheric pressure, so that it is not necessary to perform a special operation and can be switched to the initial state. .

For example, when a fire extinguisher is injected, the flow rate of compressed air flowing through the conduction passage is 0.06 m ³ / min (about 60 liters / min), whereas the remaining amount of fire extinguisher is zero, When the compressed air is injected, the flow rate of the compressed air flowing through the conduction passage is 0.2 m ³ / min (about 200 liters / min). As described above, a flow rate difference of about three times or more is generated between the extinguishing agent and the compressed air. Therefore, when the flow rate difference is large, waste of compressed air can be prevented by providing a valve that closes the conduction path. . Moreover, in this embodiment, although the overflow prevention was performed based on the pressure difference resulting from the flow rate difference of the compressed air between the fire extinguisher and the compressed air, the overflow prevention may be performed by another configuration.

  Further, as the valve complex 202, the overflow prevention structure 207, the suppression structure 206, and the check valve structure 301 are integrally formed, thereby reducing the number of connecting parts to the pressure source fluid conduit 5 and reducing the size and size. Weight reduction can be achieved.

  As a modification, the overflow prevention structure 207, the suppression structure 206, and the check valve structure 301 may be formed separately. Further, the overflow prevention means may be realized other than the overflow prevention valve. For example, the flow rate detection unit, the on-off valve, and the control unit may be combined. The control unit determines that the flow rate of the compressed air detected by the flow rate detection unit exceeds a predetermined set value. Then, the control means gives a control command to the on-off valve so as to close the pressure source fluid conduit 5. Also by this, the same effect as the overflow prevention valve can be obtained. Moreover, in this embodiment, although it had the suppression structure, if compressed air can be slowly flowed down by the on-off valve 9 immediately after the supply start of compressed air, it does not need to have a suppression structure.

  Further, by forming the overflow prevention structure before the pressure source fluid conduit 5 is branched, it is not necessary to provide two overflow prevention structures, and the structure can be simplified. Moreover, waste of compressed air can be prevented reliably and safety can be improved. Further, as another embodiment, an overflow prevention structure may be formed after the pressure source fluid conduit 5 is branched. In this case, even if the extinguishing agent in one extinguishing agent container 3 runs out, the extinguishing agent can be injected from the other extinguishing agent container 4.

  In the present embodiment, the overflow prevention unit 201 is used, but another on-off valve 246 may be used instead of the overflow prevention unit 201. In this case, when the wearer determines that the extinguishing agent in the extinguishing agent containers 3 and 4 is exhausted, the wearer switches the other on-off valve 246 from the open state to the closed state. As a result, waste of compressed air can be suppressed.

  FIG. 47 is a system diagram schematically showing the configuration of a fire extinguisher 1D according to the fourth embodiment of the present invention. The fire extinguisher 1D of the present embodiment is similar to the fire extinguisher 1 of the first embodiment described above. In the fire extinguisher 1D of the present embodiment, the following overflow prevention valve 250 is used in place of the above-described downflow prevention valve 12.

  The overflow prevention valve 250, which is an overflow prevention means, is interposed in the first pressure source fluid conduit portion 5a. The overflow prevention valve 250 is provided on the downstream side in the A1 direction from the pressure reducing valve 6 and on the upstream side in the A1 direction from the check valve 11. The overflow prevention valve 250 is realized by the same configuration as the above-described overflow prevention structure 207 of the third embodiment. Such an overflow prevention valve 250 causes the compressed air to flow down the first pressure source fluid conduit portion 5a when the flow rate of the compressed air flowing down the first pressure source fluid conduit portion 5a exceeds a predetermined flow rate. Stop that.

  The fire extinguisher 1D of the present embodiment includes a bypass conduit 251 that bypasses the overflow prevention valve 250, and a bypass conduit opening / closing valve 252 that is interposed in the bypass conduit 251 and configured to be switchable between an open state and a closed state. Further prepare. The bypass conduit 251 branches from the portion between the pressure reducing valve 6 and the overflow prevention valve 250 in the first pressure source fluid conduit portion 5a, and the overflow prevention valve 250 in the first pressure source fluid conduit portion 5a. And the check valve 11 merge.

  Before the compressed air is introduced from the pressure source fluid container 2 to the extinguishing agent containers 3 and 4, the pressure in the extinguishing agent containers 3 and 4 is atmospheric pressure. When the pressure in the extinguishant containers 3 and 4 is atmospheric pressure, when the on-off valve 9 is switched from the closed state to the open state in spite of the presence of the extinguishing agent in the extinguishant containers 3 and 4, Compressed air of a preset flow rate or more may flow down to the one pressure source fluid conduit 5a. In consideration of this point, a bypass conduit 251 and a bypass conduit on-off valve 252 are provided.

  In order to change the on-off valve 9 from the closed state to the open state, first, the bypass conduit on-off valve 252 is opened. In this state, the on-off valve 9 is switched from the closed state to the open state. At this time, most of the compressed air is led to the extinguishing agent containers 3 and 4 through the bypass conduit 251. Therefore, it is possible to prevent the overflow prevention valve 250 from operating undesirably. After the pressure in the extinguishant containers 3 and 4 rises, the bypass conduit on-off valve 252 is switched from the open state to the closed state.

  FIG. 48 is a front view showing a container holder 13A provided in a fire extinguishing apparatus according to a fifth embodiment of the present invention. FIG. 48 shows the container holder 13A in a state where the cover bodies 46 and 47 are opened. FIG. 49 is a left side view showing the container holder 13A as viewed from the left side of FIG. FIG. 50 is a plan view showing the container holder 13A as viewed from the upper side in FIG. 51 is a bottom view showing the container holder 13A as viewed from the lower side of the sheet of FIG. FIG. 52 is a rear view showing the container holder 13A as seen from the back side of the sheet of FIG. FIG. 53 is a front view showing the container holder 13A with the cover bodies 46 and 47 closed. 54 is a left side view showing the container holder 13A as viewed from the left side of FIG. FIG. 55 is a plan view showing the container holder 13A as viewed from the upper side in FIG. 56 is a bottom view showing the container holder 13A as viewed from the lower side of the drawing in FIG. FIG. 57 is a rear view showing the container holder 13A as seen from the back side of the sheet of FIG. FIG. 58 is a front view showing a state in which the pressure source fluid container 2 and the fire extinguishing agent containers 3 and 4 are mounted on the container holder 13A. Since the container holder 13A has a bilaterally symmetric structure in the plane of FIG. 48 and FIG. 53, the container holder 13A viewed from the right side of FIG. 48 and FIG. 53 is a container viewed from the left side of FIG. It is symmetrical with respect to the holder 13A.

  The fire extinguishing apparatus according to the present embodiment is similar to the fire extinguishing apparatus 1 according to the first embodiment described above. In the present embodiment, the following container holder 13A is used instead of the container holder 13 described above. Since the container holder 13A used in the present embodiment is similar to the container holder 13 described above, only different points will be described.

  The leg portion 45a of the frame 45 is formed along an arc centered on the user when the user is wearing the fire extinguishing device. Thus, when the user moves with the fire extinguisher attached, interference between the leg portion 45a of the frame body 45 and another object can be prevented.

  The body portion 45b of the frame body 45 is configured to project upward from the upper portion of the pressure source fluid container 2 in a state where the pressure source fluid container 2 is mounted on the body portion 45b, so that the user can grip it. A handle portion 256 is formed. Since the handle portion 256 is formed in this manner, the user can easily lift the fire extinguishing apparatus by holding the handle portion 256.

  The grip portion 256 may be provided with a grip member. The grip member is provided so as to cover the handle portion 256. In this case, the user grips the grip member. When gripping the grip member, the contact area between the grip member and the user's hand is increased, whereby the force acting on the user's hand from the handle portion 256 can be dispersed, and thus the grip member is easily gripped.

  FIG. 59 is a front view showing a container holder 13B included in a fire extinguishing apparatus according to a sixth embodiment of the present invention. 60 is a left side view showing the container holder 13B as viewed from the left side of FIG. 59. 61 is a bottom view showing the container holder 13B as viewed from the lower side of the drawing in FIG. 62 is a cross-sectional view taken along the cutting line TT of FIG. The fire extinguishing apparatus of the present embodiment is similar to the fire extinguishing apparatus of the fifth embodiment described above. In the present embodiment, the following container holder 13B is used in place of the container holder 13A described above. The container holder 13B used in the present embodiment is similar to the container holder 13A described above.

  Specifically, the leg portion 45a of the frame body 45 is formed so as to follow an arc centered on the user in a state in which the user wears the fire extinguishing device, and the trunk portion 45b of the frame body 45 has this With the pressure source fluid container 2 mounted on the body portion 45b, a handle 260 is formed that protrudes above the upper part of the pressure source fluid container 2 and is configured to be gripped by the user. A grip member may be provided on the handle portion 260. In this embodiment, the same effect as that of the fifth embodiment described above can be achieved.

  FIG. 63 is a diagram showing a fire extinguisher 1B according to a seventh embodiment of the present invention. The fire extinguisher 1B of the present embodiment is similar to the fire extinguisher 1 of the first embodiment described above. The fire extinguisher 1 </ b> B according to the present embodiment is loaded on the two-wheeled vehicle 52. Specifically, the pressure source fluid container 2 is loaded on the rear seat of the motorcycle 52, and the extinguishing agent containers 3 and 4 are disposed on both sides of the rear seat. The two-wheeled vehicle 52 is provided with a winding means 53 so that the extinguishing agent conduit 8 can be wound and unwound. The fire extinguishing agent conduit 8 is wound around and stored in the winding means 53 and is rewound during use.

  In the present embodiment, the fire extinguisher 1 </ b> B is loaded on the two-wheeled vehicle 52, but is not limited to the two-wheeled vehicle 52. For example, the vehicle may be a four-wheeled vehicle such as a fire truck, a carriage, and a rear car, a three-wheeled vehicle or a flying body such as a helicopter and an airplane, and may be any movable body that can be loaded and moved.

  FIG. 64 is an enlarged view of the injection nozzle 29C of the discharge means 7 included in the fire extinguishing apparatus according to the eighth embodiment of the present invention. The injection nozzle 29C of the present embodiment is similar to the injection nozzle 29 of the first embodiment described above. The housing body 25 a of the discharging means 7 has a suction port that has a flange portion 77 formed on the other end side in the axial direction from the one end portion in the axial direction and penetrates between the one end portion in the axial direction and the flange portion 77 in the radial direction. 81 is formed. The nozzle housing 70C is formed in a cylindrical shape, and is formed in a long shape extending in the axial direction.

  According to the injection nozzle 29 </ b> C configured in this way, the fire extinguishing agent passes through the inside of the flange portion 77 and flows down the injection nozzle 29 </ b> C. At this time, the extinguishing agent flows down, so that the internal pressure of the injection nozzle 29 </ b> C decreases, and outside air is sucked from the suction port 81. The air to be sucked in and the fire extinguisher are mixed, and the fire extinguisher is foamed and released (two-dot chain line in FIG. 64).

FIG. 65 is a front view showing discharge means 7D provided in the fire extinguishing apparatus according to the ninth embodiment of the present invention. FIG. 66 is a left side view showing the discharging means 7D as seen from the left side of FIG. 67 is a right side view showing the discharge means 7D when FIG. 65 is viewed from the right side of the drawing. FIG. 68 is a plan view of FIG. 65 viewed from the upper side of the drawing. FIG. 69 is a bottom view showing the discharge means 7D when FIG. 65 is viewed from the lower side of the drawing. FIG. 70 is a rear view showing the discharge means 7D when FIG. 65 is viewed from the back side of the drawing.
71 is an end view of the discharge means 7D viewed along the cutting line H-H in FIG. FIG. 72 is an end view of the discharge means 7D viewed along the cutting line JJ in FIG. FIG. 73 is an end view of the discharge means 7D viewed along the cutting line KK of FIG. FIG. 74 is a cross-sectional view showing the discharge means casing 170 cut along the cutting line MM in FIG. The discharge means 7D of the present embodiment is similar to the discharge means 7 of the first embodiment described above, and only the outer shape of the discharge means casing 170 is different from the discharge means casing 25. A detailed description of the outer shape of the discharge means casing 170 will be omitted with reference to FIGS. About the other same structure, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The discharge means 7 </ b> D includes a discharge means casing 170, an on-off valve portion 26, a supply pipe 27, a lever 28, and an injection nozzle 29. The discharge means casing 170 includes a casing main body 170a and a gripping portion 170b. The casing main body 170a is similar in configuration to the casing main body 25a, and specifically, the protrusion 159 is not formed. The gripping portion 170 is generally formed in a U shape, and one end portion 171a is integrally formed with the other end portion in the longitudinal direction of the housing body 170a, and the other end portion 171b is integrally formed with the middle portion in the longitudinal direction of the housing body 25a. It is formed to be grippable.

  FIG. 75 is a plan view showing a pressure reducing valve 6E provided in a fire extinguishing apparatus according to a tenth embodiment of the present invention. 76 is a cross-sectional view of the pressure reducing valve 6E taken along the cutting line NN of FIG. 77 is a cross-sectional view of the pressure reducing valve 6E taken along the cutting line PP of FIG. 78 is a cross-sectional view of the pressure reducing valve 6E taken along the cutting line QQ in FIG. 79 is a partial cross-sectional view of the pressure reducing valve 6E taken along the cutting line RR in FIG. The pressure reducing valve 6E of the present embodiment and the pressure reducing valve 6 of the first embodiment described above are substantially the same in configuration except for the appearance and the arrangement of the components. Therefore, in the pressure reducing valve 6E of the present embodiment, the same components as those of the pressure reducing valve 6 of the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 80 is a plan view showing the configuration of the lid 20A of the extinguishing agent containers 3 and 4 included in the fire extinguishing apparatus according to the eleventh embodiment of the present invention. 81 is a cross-sectional view taken along section line SS of FIG. The fire extinguishing apparatus according to the present embodiment is similar to the fire extinguishing apparatus 1 according to the first embodiment described above. In the present embodiment, the following lid 20A is used instead of the lid 20 described above.

  The lid 20A is detachably formed in the opening at one end in the axial direction of the extinguishant containers 3 and 4, and the lid 20A is removed from the extinguishant containers 3 and 4 so that the extinguishing agent container Openings of 3 and 4 are opened. Moreover, the opening of the extinguishing agent containers 3 and 4 is closed by attaching the lid 20A to the extinguishing agent containers 3 and 4. The lid 20 </ b> A is formed in a cylindrical shape in which an external screw is formed, and is attached to the extinguishing agent containers 3, 4 by being screwed to the inner screw formed in the opening of the extinguishing agent containers 3, 4. Is done. The lid 20 </ b> A is formed in a substantially cylindrical shape and is screwed into the extinguishant containers 3, 4, one end surface in the axial direction faces the internal space of the extinguishing agent containers 3, 4, and the outer peripheral surface is the extinguishing agent It faces the opening of the containers 3 and 4 for use. In the state where the lid 20A is screwed into the extinguishant containers 3 and 4, a seal member 271 that closes the gap between the extinguishant containers 3 and 4 and the lid 20A is formed on the outer peripheral portion.

  The lid 20A is formed with a pressure relief valve 272 having a pressure relief function for reducing the pressure in the extinguishant containers 3 and 4 to atmospheric pressure. The lid body 20 </ b> A is formed with a communication pipe 274 formed in the lid body 273 and a pressure relief valve body 275 formed separately from the lid body 273. The communication tube 274 is inserted through the inside of the lid 20A from one end surface in the axial direction to form a communication hole reaching the outer peripheral surface. The communication pipe 274 includes a first portion 276 that forms a vertical hole extending from one end surface in the axial direction along the central axis of the lid body 20 </ b> A, and an accommodation space that is connected to the first portion 276 and accommodates the pressure relief valve body 275. A second portion 277 to be formed, and a third portion 278 that continues to the second portion 277 and extends in the radial direction of the lid 20A to form a lateral hole that opens to the outer peripheral surface of the lid 20A. The cross-sectional area in the axial direction of the housing space is formed larger than that of the vertical hole. A seating surface 281 on which the pressure relief valve body 275 is seated is formed at a connection portion between the first portion 276 and the second portion 277.

  The pressure relief valve body 275 is formed so as to be displaceable in the axial direction, and closes the vertical hole formed in the first portion 276 by contacting the seating surface 281. This prevents the compressed air in the extinguishant containers 3 and 4 from passing through the communication pipe 274. Further, the pressure relief valve body 275 is separated from the seating surface 281 so that the communication pipe 274 is unsealed, and the compressed air in the extinguishant containers 3 and 4 is allowed to pass through the communication pipe 274. Is done.

  The pressure relief valve body 275 is elastic and includes a contact member 282 that faces the seating surface 281 and a holding member 283 that holds the contact member 282. The holding member 283 is screwed onto an inner screw formed on the lid body 273. The holding member 283 moves the contact member 282 in a direction approaching the seating surface 281 by screwing, and moves the contact member 282 in a direction separating from the seating surface 281 by screwing back. The holding member 283 is locked by a pin member 280 provided on the lid body 273, so that the displacement range is limited.

  Further, a pressure relief space 284 for pressure relief is formed in the extinguishant containers 3 and 4. The pressure release space 284 includes an annular space 285 and an escape hole 286. The annular space 285 is a space formed in an annular shape so as to face the opening of the horizontal hole formed in the lid body 20A in a state where the lid body 20A is screwed and to be immersed in the thickness direction. The escape hole 286 is a space that continues to the annular space 285 and penetrates the extinguishing agent containers 3 and 4 in the thickness direction.

  If the holding member 283 is screwed out in a state where the compressed air in the extinguishant containers 3 and 4 is higher than the atmospheric pressure, and the contact member 282 is separated from the seating surface 281, the inside of the extinguishant containers 3 and 4 The compressed air passes through the communication pipe 274 and the pressure release space 284 of the extinguishing agent containers 3 and 4 in order due to a pressure difference with respect to the atmospheric pressure, and is jetted out of the extinguishing agent containers 3 and 4. Further, when the pressure in the extinguishing agent containers 3 and 4 becomes atmospheric pressure, the ejection of air from the extinguishing agent containers 3 and 4 is stopped. Further, even if the pressure relief valve body 275 receives pressure in a direction away from the lid body 273 by compressed air, the pressure relief valve body 275 is locked to the pin member, thereby preventing the pressure relief valve body 275 from being pulled out from the lid body 273 during pressure relief. Can be removed.

  According to the present embodiment, the pressure relief valve 272 adds the extinguishing agent in a state where a part of the extinguishing agent in the extinguishing agent containers 3 and 4 remains in the extinguishing agent containers 3 and 4. Used for. In this case, with the pressure source fluid conduit 5 closed by the on-off valve 9, the compressed air in the extinguishant containers 3, 4 is discharged out of the extinguishant containers 3, 4 by the pressure relief valve 272. After the pressure in the extinguishant containers 3 and 4 is reduced to atmospheric pressure, the lid 20A is removed from the extinguishing agent containers 3 and 4 and refilled with the extinguishing agent. Next, the extinguishing agent containers 3 and 4 are closed by the lid 20A. Accordingly, the fire extinguisher can be refilled without discharging the remaining fire extinguisher from the extinguishing agent containers 3 and 4, and convenience can be improved.

  FIG. 82 is a system diagram schematically showing the configuration of a fire extinguisher 1E according to the twelfth embodiment of the present invention. The fire extinguisher 1E of the present embodiment is similar to the fire extinguisher 1C of the third embodiment described above. In the third embodiment, compressed air is supplied to a position away from the opening of the extinguishing agent containers 3 and 4 by the siphon tube 22 disposed in the internal space of the extinguishing agent containers 3 and 4. In the embodiment, compressed air may be introduced into the internal space of the extinguishant containers 3 and 4 by the connecting bodies 321 provided in the extinguishing agent containers 3 and 4, respectively.

  The connection bodies 321 are respectively arranged in the vicinity of the lid body 20 of the extinguishing agent containers 3 and 4. The connection body 321 is connected to the extinguishing agent containers 3 and 4 by welding, and forms a connection port that is inserted into the internal space of the extinguishing agent containers 3 and 4. The connection body 321 is detachably connected to the end of the second pressure source fluid conduit portion 5b. By connecting the connection body 321 to the second pressure source fluid conduit portion 5b, the compressed air flowing through the pressure source fluid conduit 5 is filled into the extinguishant containers 3 and 4 through the connection ports. As a result, the same effect as when the siphon tube 22 is arranged can be obtained.

  The connection body 321 is disposed near the pressure source fluid container 2 in the upper end portions of the extinguishant containers 3 and 4, and is prevented from projecting from the frame body 45 in the horizontal direction. Accordingly, the connection body 321 can be prevented from colliding with an obstacle at a fire site or the like, and can be prevented from being broken from the fire extinguishing agent containers 3 and 4. Further, the pressure source fluid conduit 5 can pass through the space between the two extinguishing agent containers 3 and 4, and the pressure source fluid conduit 5 extends outside the extinguishing agent containers 3 and 4. This prevents it from being caught by obstacles. Further, the connection body 321 can be prevented from being broken from the extinguishing agent containers 3 and 4 by setting the upper end part of the connection body 321 lower than the upper end part of the frame body 45.

  Further, by providing the connection body 321, when the extinguishing agent concentrate and water are injected into the extinguishing agent containers 3, 4 by a hose or the like, obstacles can be eliminated, and the hose can be easily put into the extinguishing agent container 3. , 4 can be entered. If a siphon tube is present, the hose and the siphon tube may come into contact with each other and the siphon tube may be damaged. However, by eliminating the siphon tube as in the present embodiment, the siphon tube may be damaged. Damage to fire extinguishing equipment can be prevented.

  Further, when the siphon tube is provided, it is necessary to provide the collective piping 21 at the opening of the extinguishant containers 3 and 4. However, as in the present embodiment, the inlet of compressed air to the extinguishant containers 3 and 4 Is provided separately from the openings of the extinguishant containers 3 and 4, a general-purpose product can be used without the collecting pipe 21, and the manufacturing cost can be reduced.

  Further, the connection body 321 and the second pressure source fluid conduit portion 5b are formed to be detachable, so that the extinguishing agent containers 3 and 4 in which the extinguishing agent remaining amount becomes zero are removed from the extinguishing device, and the fire extinguishing is performed. The extinguishing agent containers 3 and 4 filled with the agent can be newly attached. This makes it unnecessary to refill the extinguishant containers 3 and 4 with a fire extinguishing agent at a fire site or the like, and the fire extinguishing operation can be resumed in a short time.

  Each of the embodiments described above is merely an example of the present invention, and the configuration can be changed within the scope of the present invention. For example, in each of the embodiments described above, compressed air is used as the pressure source fluid. However, when the respirator 10 is not provided, the pressure source fluid is not limited to compressed air. For example, a gas such as nitrogen or a liquid may be used. Moreover, as a fire extinguisher, what is necessary is just a liquid which has a flame retardance, for example, water may be used or a foam fire extinguishing agent and a reinforcement | strengthening liquid may be used.

  Although the pressure reducing valves 6 and 6E are used as the pressure reducing means, the pressure reducing means is not limited to such a configuration capable of reducing the pressure to a constant pressure. For example, an orifice may be formed in the pressure source fluid conduit 5 to reduce the pressure, and any means capable of reducing the pressure of the compressed air may be used. Similarly, the check valves 11 and 11A, the flow prevention valves 12 and 12A, the overflow prevention means 201, and the on-off valve 9 are not limited to such a configuration, and may be any configuration that can perform each function. Good.

  Moreover, the hand gun which is the discharge | release means 7 has the connection part formed in ring shape in one place or more, and two places in this embodiment. As a result, the hand gun is formed to be detachable from the waist band via a connecting fitting such as a carabiner. In the present embodiment, each connecting portion is arranged at a position away from the injection nozzle, and the connecting portion is arranged so that the injection nozzle faces downward in a state where the hand gun is attached to the waist band. The first connecting portion is disposed at a position away from the injection nozzle opposite to the injection direction. The second connected portion is disposed from the supply pipe 27.

  By attaching the hand gun to the waist band, the wearer need not always hold the hand gun with both hands, and can smoothly perform work in the fire site. Further, by removing the hand gun from the waist band, the wearer can support the hand gun with both hands and spray the fire extinguishing agent onto the fire extinguishing target.

  In the frame body 45, a buffer member is disposed where the pressure source fluid container 2 and the fire extinguishing agent containers 3 and 4 hit. Thereby, even if the pressure source fluid container 2 and the extinguishing agent containers 3 and 4 move up and down with respect to the frame body 45 during transportation, the impact given to the wearer can be reduced.

1 is a system diagram schematically showing the configuration of a fire extinguisher 1 according to a first embodiment of the present invention. 1 is a block diagram illustrating a configuration of a fire extinguisher 1. 1 is a front view showing a fire extinguisher 1. 3 is a plan sectional view showing the pressure reducing valve 6. FIG. It is sectional drawing which cut | disconnected the cutting line AA of FIG. 4, and looked at the pressure-reduction valve. It is a front view which shows the discharge | release means. It is the left view which shows the discharge | release means 7 which looked at FIG. 6 from the paper surface left side. It is the right view which shows the discharge | release means 7 which looked at FIG. 6 from the paper surface right side. It is the top view which looked at FIG. 6 from the paper surface upper side. It is a bottom view which shows the discharge | release means 7 which looked at FIG. 6 from the paper surface lower side. It is a rear view which shows the discharge | release means 7 which looked at FIG. 6 from the paper surface back side. It is front sectional drawing which shows the discharge | release means 7 cut | disconnected and seen by the cutting line BB of FIG. It is an end view of the discharge | release means 7 cut | disconnected by the cutting line EE of FIG. It is an end view of the discharge | release means 7 cut | disconnected by the cutting line FF of FIG. It is the end view of the discharge | release means 7 cut | disconnected by the cutting line GG of FIG. It is sectional drawing which shows the discharge | release means housing | casing 25 cut | disconnected and seen by the cutting line BB of FIG. It is a figure which shows the collective piping. FIG. 18 is a bottom view showing the collective piping 21 as viewed from the lower side of the paper of FIG. 17. It is a top view which shows the collection piping 21 seen from the paper surface upper side of FIG. It is a figure which expands and shows the injection nozzle.

It is a top view which shows the on-off valve. It is a figure which shows the on-off valve 9 cut | disconnected and seen by the cutting line CC of FIG. It is a figure which shows the on-off valve 9 cut | disconnected and seen by the cutting line DD of FIG. 1 is a perspective view showing a respiratory device 10. FIG. 1 is a cross-sectional view showing a cross section of a respiratory apparatus 10. FIG. 3 is a perspective view showing a part of a lung force valve 35 and an exhalation valve 36 included in the respiratory device 10 in a broken state. 2 is a cross-sectional view schematically showing a check valve 11. FIG. It is sectional drawing which shows the flow-down prevention valve 12 schematically. It is a front view which shows the container holder 13 in the state where the cover body was opened. It is a left view which shows the container holder 13 seen from the paper surface left side of FIG. It is a top view which shows the container holder 13 seen from the paper surface upper side of FIG. It is a bottom view which shows the container holder 13 seen from the paper surface lower side of FIG. It is a rear view which shows the container holder 13 seen from the paper surface back side of FIG. It is a figure which shows the cross section of the cover bodies 46 and 47. FIG. It is a front view which shows the container holder 13 in the state where the cover body was closed. It is a left view which shows the container holder 13 seen from the paper surface left side of FIG. It is a top view which shows the container holder 13 seen from the paper surface upper side of FIG. It is a bottom view which shows the container holder 13 seen from the paper surface lower side of FIG. It is a rear view which shows the container holder 13 seen from the paper surface back side of FIG. It is a front view which shows the state with which the container 2 for pressure source fluids, and the containers 3 and 4 for extinguishing agents were mounted | worn with the container holder 13. FIG.

It is a figure which shows the state which displaced the nozzle housing | casing 70 with respect to the housing main body 25a of the discharge means. It is a flowchart which shows the procedure which supplies a fire extinguisher to the container 3 for extinguishing agents. It is sectional drawing which shows schematically the overflow prevention valve 12A with which the fire extinguishing apparatus of 2nd Embodiment of this invention is provided. It is a systematic diagram which shows schematically the structure of 1 C of fire extinguishing apparatuses of 3rd Embodiment of this invention. It is a block diagram which shows the structure of fire extinguishing apparatus 1C. It is sectional drawing which shows 11A of check valves and the overflow prevention means 201. FIG. It is a systematic diagram which shows schematically the structure of fire extinguishing apparatus 1D of 4th Embodiment of this invention. It is a front view which shows 13A of container holders with which the fire extinguishing apparatus of 5th Embodiment of this invention is provided. FIG. 49 is a left side view showing the container holder 13A as viewed from the left side of the sheet of FIG. It is a top view which shows 13A of container holders seen from the paper surface upper side of FIG. FIG. 49 is a bottom view showing the container holder 13A as viewed from the lower side of the sheet of FIG. 48. It is a rear view which shows 13A of container holders seen from the paper surface back side of FIG. It is a front view showing container holder 13A in the state where cover bodies 46 and 47 were closed. It is a left view which shows 13A of container holders seen from the paper surface left side of FIG. It is a top view which shows 13A of container holders seen from the paper surface upper side of FIG. It is a bottom view which shows 13A of container holders seen from the paper surface lower side of FIG. It is a rear view which shows the container holder 13A seen from the paper surface back side of FIG. It is a front view which shows the state by which the container 2 for pressure sources and the containers 3 and 4 for extinguishing agents were mounted | worn with the container holder 13A. It is a front view which shows the container holder 13B with which the fire extinguishing apparatus of 6th Embodiment of this invention is provided. FIG. 60 is a left side view of the container holder 13B as viewed from the left side of FIG. 59.

FIG. 60 is a bottom view showing the container holder 13B as seen from the lower side of the drawing of FIG. 59. It is sectional drawing seen from the cutting line TT of FIG. It is a figure which shows the fire extinguisher 1B of 7th Embodiment of this invention. It is a figure which expands and shows the injection nozzle 29C of the discharge means 7 with which the fire extinguisher of 8th Embodiment of this invention is provided. It is a front view which shows discharge | release means 7D with which the fire extinguishing apparatus of 9th Embodiment of this invention is provided. FIG. 66 is a left side view showing the discharge means 7D when FIG. 65 is viewed from the left side of the drawing. FIG. 66 is a right side view showing the discharge means 7D when FIG. 65 is viewed from the right side of the drawing. It is the top view which looked at FIG. 65 from the paper surface upper side. FIG. 66 is a bottom view showing the discharging means 7D when FIG. 65 is viewed from the lower side of the drawing. FIG. 66 is a rear view showing the discharging means 7D when FIG. 65 is viewed from the back side of the drawing. FIG. 66 is an end view of the discharge means 7D viewed by cutting along a cutting line HH of FIG. 65. FIG. 66 is an end view of the discharge means 7D viewed by cutting along a cutting line JJ in FIG. 65. FIG. 66 is an end view of the discharge means 7D viewed by cutting along a cutting line KK in FIG. 65. FIG. 67 is a cross-sectional view showing the discharge means casing 170 cut along the cutting line MM in FIG. 66. It is a top view which shows the pressure-reduction valve 6E with which the fire extinguishing apparatus of 10th Embodiment of this invention is provided. FIG. 76 is a cross-sectional view of the pressure reducing valve 6E cut along a cutting line NN in FIG. 75. FIG. 76 is a cross-sectional view of the pressure reducing valve 6E cut along a cutting line PP in FIG. FIG. 78 is a cross-sectional view of the pressure reducing valve 6E cut along a cutting line QQ in FIG. 77. FIG. 76 is a partial cross-sectional view of the pressure reducing valve 6E cut along a cutting line RR in FIG. It is a top view which shows the structure of 20 A of lids of the extinguishing agent containers 3 and 4 with which the fire extinguishing apparatus of 11th Embodiment of this invention is provided.

It is sectional drawing seen from the cutting line SS of FIG. It is a systematic diagram which shows schematically the structure of the fire-extinguishing apparatus 1E of 12th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fire extinguisher 2 Pressure source fluid container 3, 4 Fire extinguisher container 5 Pressure source fluid conduit 6 Pressure reducing valve 7 Release means 8 Fire extinguisher conduit

Claims (7)

A pressure source fluid that is compressed compared to the atmospheric pressure, and stores a pressure source fluid that can be respired by the wearer when the pressure is reduced, and
An air supply means for adjusting the pressure source fluid to be introduced to a pressure at which the wearer can breathe, and supplying the adjusted pressure source fluid to the outside of the device;
A fire extinguishing agent container for storing a fire extinguishing agent;
Discharging means for discharging the extinguishing agent to be guided outside the apparatus;
A fire extinguishing agent passage connected to the extinguishing agent container and the discharging means, and leading the extinguishing agent stored in the extinguishing agent container to the discharging means;
Connected to the pressure source fluid container and branched halfway, one of the branch paths is connected to the extinguishing agent container, the other of the branch paths is connected to the air supply means, and the pressure stored in the pressure source fluid container Pressure source fluid flow paths for leading the source fluid to the extinguishing agent container and the air supply means, respectively;
Pressure reducing means interposed in the pressure source fluid flow path and adjusting the pressure source fluid to a pressure lower than the pressure in the pressure source fluid container and respectively flowing down to the two branch paths of the pressure source fluid flow path; ,
Interposed pressure-source fluid flow path, fire extinguishing device extinguishing agent flowing back the pressure-source fluid flow path, characterized in that it comprises a reverse flow preventing means for preventing the flow toward the air supply means. 2. The fire extinguishing apparatus according to claim 1, wherein the backflow prevention means is interposed downstream of the branch point in the pressure source fluid flow path and upstream of the fire extinguishing agent container . The fire extinguishing apparatus according to claim 1 or 2, wherein the decompression means is a pressure control valve that keeps the secondary pressure constant . The fire extinguishing apparatus according to any one of claims 1 to 3, further comprising a flow prevention means that is interposed in the flow path for the fire extinguishing agent and prevents the pressure source fluid from flowing down . When the pressure source fluid flow path is located downstream of the branch point and upstream of the extinguishing agent container and the flow rate of the pressure source fluid exceeds a predetermined set flow rate, the pressure source fluid flows down. The fire extinguishing apparatus according to any one of claims 1 to 3 , further comprising an overflow prevention means for blocking . The fire extinguisher is an aqueous solution in which a resin that has flame retardancy and whose viscosity increases with an increase in temperature is dissolved . The fire extinguishing apparatus according to any one of claims 1 to 5 . A frame for disposing a pressure source fluid container and a fire extinguisher container;
The fire extinguishing apparatus according to any one of claims 1 to 6, wherein the frame body is configured to be capable of being held in a state where the container for the pressure source fluid and the container for the fire extinguishing agent stand .

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