Fire extinguisher storage device

Abstract

To make it possible to easily and safely take out a fire extinguisher pulled outside from a side surface of a housing installed at a high position on a watchman's passage in accordance with a tunnel cross section shape.SOLUTION: A fire hydrant device 10 to be one embodiment of a fire extinguisher storage device has a housing installed at a high position on a rack 30 placed on a road surface of a watchman's passage 35 provided along a wall surface of a tunnel. In a fire extinguisher storage part 50c of the fire hydrant device 10, a drawer housing 32 provided with a side face fire hydrant side door 16 is provided, and a fire extinguisher storage box 34 mounting a fire extinguisher 72 on a bottom side of the drawer housing 32 is freely liftably arranged by an oil damper 38. When the drawer housing 32 is drawn to a lateral external part, a rod 3814 of the oil damper 38 extends by load of the fire extinguisher 72, and the fire extinguisher storage box 34 lowers to the road surface of the watchman's passage 35, so that the fire extinguisher 72 can be safely and easily taken out from the low position.SELECTED DRAWING: Figure 12

Description

Technical Field

[0001] The present invention relates to a fire hydrant device installed in a tunnel or the like for storing a fire hose, a fire extinguisher, etc., and a fire extinguisher storage device such as a fire extinguisher box installed in a tunnel or the like for storing a fire extinguisher.

Background Art

[0002] Conventionally, a fire hydrant device has been installed in a tunnel such as a highway or an expressway as an emergency facility in the tunnel. The fire hydrant device has a fire hose with a nozzle attached to the tip and valves including a fire hydrant valve stored in a fire hydrant storage section of a housing equipped with a forward-tilting door (fire hydrant door), and, for example, two fire extinguishers are stored in a fire extinguisher storage section equipped with a fire extinguisher door. In addition, the fire hydrant device is generally installed by cutting out the tunnel wall surface at intervals of, for example, 50 meters in the longitudinal direction of the tunnel and embedding it.

[0003] By the way, in a tunnel constructed by the shield method or the like, due to the structure of the tunnel body, it is difficult to cut out the tunnel wall surface and embed the fire hydrant device because of cost and labor, so it is necessary to install the fire hydrant device in a state of being exposed in the monitor passage.

[0004] In addition, in order to install the fire hydrant device without cutting out the tunnel wall surface, a wall-mounted structure has been proposed in which the fire hydrant device is attached and fixed to a gantry installed on the tunnel wall surface. In this case, the gantry is composed of a main support portion fixed to the wall surface and a posture holding member for holding the posture of the fire hydrant device (Patent Document 2).

[0005] In addition, since the wall-mounted fire hydrant device has problems such as taking a lot of labor and time to attach to the tunnel wall surface, it is considered to adopt a so-called standing structure in which the fire hydrant device is attached and fixed in an exposed state to a gantry installed on the road surface of the monitor passage where installation is easy.

Prior Art Documents

Patent Documents

[0006] [Patent Document 1] Japanese Patent Publication No. 2016-055073 [Patent Document 2] Japanese Patent Publication No. 2020-078429 [Overview of the Initiative] [Problems that the invention aims to solve]

[0007] Incidentally, even in the case of wall-mounted or freestanding fire hydrant systems, if, for example, two fire extinguishers are stored in the fire extinguisher storage section of a housing equipped with a fire extinguisher door, when a fire breaks out and road users need to use the fire extinguishers, they will need to open the fire extinguisher door sideways (the door, which is pivotally supported on one side, rotates) to take out the fire extinguishers from the storage section and carry out firefighting. However, if the fire extinguisher door remains open after the fire extinguishers have been taken out, it creates a problem as it obstructs the passage of evacuees evacuating from the guard's walkway.

[0008] This problem also applies to fire extinguisher boxes installed as emergency equipment in lower-ranked tunnels, which are categorized based on factors such as traffic volume and tunnel length.

[0009] To solve this problem, the applicant has proposed a fire hydrant device and fire extinguisher box (Japanese Patent Application No. 2022-35088) in which the housing is installed at a predetermined height above the road surface of a guardian's passage provided along the wall of a tunnel with a road, close to or in contact with the tunnel wall, and equipped with a fire extinguisher pull-out structure that allows a fire extinguisher, which is placed vertically in the fire extinguisher storage section inside the housing, to be taken out from the side of the housing. Therefore, when road users use a fire extinguisher to extinguish a fire, they can pull out the fire extinguisher from the side of the housing of the fire hydrant device and take it out, making it possible to take out the fire extinguisher without obstructing passage in the guardian's passage in front of the housing.

[0010] On the other hand, in order to open the fire extinguisher door of a fire hydrant system and easily and safely retrieve the fire extinguisher stored inside, the Fire Service Act stipulates that the height of the fire extinguisher lever must be 1.5m or less from the road surface, and this must also be applied when installing them in tunnels.

[0011] However, if the height from the road surface to the road surface of the guardian's walkway is about 1 meter, and the fire hydrant system is installed so that the height of the fire extinguisher lever is 1.5 meters or less from the road surface, the height of the guardian's walkway from the road surface will be at most a few tens of centimeters. Even if there were no restrictions on the installation height, and the fire hydrant system could be installed at a relatively high place, for example, 2 meters from the road surface, when retrieving a fire extinguisher weighing about 10 kg from such a height, there is a possibility that it will be dropped, or that the fire extinguisher will be thrown or damaged by the impact.

[0012] The present invention aims to provide a fire extinguisher storage device, such as a fire hydrant device or fire extinguisher box, that allows for easy and safe removal of fire extinguishers that have been pulled out from the side of a housing installed at a high position on a monitoring walkway in accordance with the cross-sectional shape of a tunnel. [Means for solving the problem]

[0013] (Fire extinguisher storage device) The present invention relates to a fire extinguisher storage device in which a housing is installed at a predetermined height above the road surface of a monitoring walkway provided along the wall of a tunnel having a road, and is located close to or in contact with the tunnel wall, The fire extinguisher is characterized by having a fire extinguisher pull-out structure that allows a vertically positioned fire extinguisher in the fire extinguisher storage compartment inside the housing to be pulled out from the side of the housing, and lowers so that the bottom of the pulled-out fire extinguisher is positioned below the lowest part of the fire extinguisher storage compartment.

[0014] (Fire extinguisher drawer structure) The fire extinguisher pull-out structure is, A drawer opening formed on the side of the enclosure, A side fire extinguisher door is positioned on the side facing the drawer opening, and at least the front and bottom are open, with the drawer housing positioned to be easily inserted into and removed from the fire extinguisher storage compartment. A drawer drawer mechanism that supports the drawer drawer so that it can move in the drawer direction relative to the fire extinguisher storage section, A fire extinguisher storage stand that allows for easy removal and placement of fire extinguishers in an upright position, A fire extinguisher lifting mechanism supports the fire extinguisher storage stand so that it can move up and down, on the bottom side of the drawer housing, Equipped with, The housing pull-out mechanism lowers the fire extinguisher storage platform by the fire extinguisher lifting mechanism so that when the user pulls the drawer housing out from the side of the housing through the pull-out opening, the bottom of the fire extinguisher is positioned below the lowest part of the fire extinguisher storage section.

[0015] (Configuration of the housing pull-out mechanism) The housing pull-out mechanism is, A first housing pull-out mechanism is positioned on the upper side of the fire extinguisher storage section and supports the pull-out housing so that it can move freely in the pull-out direction, A second housing pull-out mechanism is positioned at the bottom of the fire extinguisher storage section and supports the fire extinguisher storage base, which moves in conjunction with the movement of the pull-out housing, so that it can move freely in the pull-out direction. It is equipped with.

[0016] (The fire extinguisher storage stand lowers to a height where the user's feet can fit underneath.) The fire extinguisher lifting mechanism lowers the fire extinguisher storage platform from the bottom of the drawer housing to a predetermined height above the road surface of the supervisor's walkway. The specified height is the height at which, when the fire extinguisher storage stand is lowered, a user's feet can fit between the bottom of the fire extinguisher storage stand and the road surface of the supervisor's passage.

[0017] (Fire extinguisher lifting mechanism) The fire extinguisher lifting mechanism is, A damper device is provided, with one end fixed to the upper and lower surfaces of the drawer housing and the other end fixed to the fire extinguisher storage base, which lowers the fire extinguisher storage base when the drawer housing is pulled out from the side of the housing, by receiving the weight of the placed fire extinguisher. A guide structure that guides the movement of the fire extinguisher storage stand in the vertical direction using a damper device, comprises

[0018] (one or more damper devices) The fire extinguisher lifting and lowering mechanism comprises one or more damper devices.

[0019] (oil damper) The damper device a cylinder with one end fixed to the drawer housing side, a piston slidably provided in the cylinder, a rod extending from the piston to the outside and having one end in the extending direction fixed to the fire extinguisher storage base side, oil filled in the cylinder, an orifice provided on the piston that generates flow resistance due to the flow of oil accompanying the movement of the piston, a check valve provided on the piston that closes with the movement of the piston in one direction and opens with the movement of the piston in the other direction, is an oil damper provided with When the drawer housing moves to the drawer position in the side direction of the housing, the oil damper lowers the fire extinguisher storage base at a predetermined speed.

[0020] (gas damper with lock control function) The damper device a cylinder with one end fixed to the fire extinguisher storage base side, a first piston slidably provided in the cylinder, a second piston slidably provided in the cylinder following the first piston, a rod extending from the first piston to the outside and having one end in the extending direction fixed to the drawer housing side 、 first piston the first cylinder chamber on one side of piston and first piston oil filled in the second cylinder chamber between inert gas filled in a pressurized state in the third cylinder chamber on one side of the second piston, An orifice is provided on the first piston, which causes oil to flow between the first and second cylinder chambers as the first piston moves, thereby generating flow resistance. A valve is provided on the first piston that opens and closes the flow path through the orifice, A push pin is provided inside the rod so as to be movable, with one end protruding outside the rod and the other end connected to a valve, and the valve opens and closes as it moves in the axial direction. It is a gas damper equipped with, The gas damper closes the passage through the orifice by a valve when the push pin is not pushed in, and the cylinder rod The relative movement of the cylinder is locked, and when the push pin is pressed in, the valve opens the passage through the orifice, allowing the cylinder and the valve to move. rod Unlock relative movement.

[0021] (Unlock) The gas damper operates based on the pushing action of the push pin or the pushing action associated with the movement of the drawer housing to the drawer position in the lateral direction of the housing, and the cylinder and rod The lock on the relative movement is released, and the fire extinguisher storage platform is lowered at a predetermined speed.

[0022] (First guide structure: cylindrical guide member) The guide structure of the fire extinguisher lifting mechanism is, The drawer housing is provided with a cylindrical guide member, one end of which is fixed to the upper and lower surfaces, and the other end of which is positioned to abut against a fire extinguisher storage stand at a predetermined drawer height. The cylindrical guide member has a damper device positioned inside and supports the upper side of the damper device.

[0023] (Second guidance structure) The guide structure of the fire extinguisher lifting mechanism is, A sheath-shaped guide fixing member is positioned vertically within the drawer housing, A guide moving member is positioned on the fire extinguisher storage stand side and is slidably inserted into the guide fixing member, It is equipped with.

[0024] (Drawer enclosure with split side fire extinguisher door) The side fire extinguisher door is divided into an upper door where the main body of the drawer housing is located, and a lower door where the fire extinguisher storage stand is located. The fire extinguisher storage stand is supported by a fire extinguisher lifting mechanism, allowing it to move freely in the vertical direction relative to the main body of the drawer housing.

[0025] (Opening and closing mechanism of the front panel of the fire extinguisher storage box) A fire extinguisher storage stand is a fire extinguisher storage box with an opening at the top. The fire extinguisher storage box is equipped with a front plate pivotally supported on the front edge of the bottom plate so as to rotate outward in response to contact made when removing a fire extinguisher. [Effects of the Invention]

[0026] (Basic effects) The present invention relates to a fire extinguisher storage device in which a housing is installed at a predetermined height above the road surface of a guardian's walkway provided along the wall surface of a tunnel with a road, and the housing is installed in close proximity to or in contact with the tunnel wall. The fire extinguisher, which is placed vertically in the fire extinguisher storage section inside the housing, can be pulled out to the outside from the side of the housing, and the fire extinguisher pull-out structure is provided to lower the bottom of the pulled-out fire extinguisher so that it is positioned below the lowest part of the fire extinguisher storage section. As a result, the fire extinguisher pulled out to the outside from the side of the housing descends to a low position close to the road surface of the guardian's walkway, so that the fire extinguisher does not fall and get damaged, the operability of taking out the fire extinguisher is improved, and for example, even elderly people or women with little strength can take out the fire extinguisher safely and easily, enabling rapid firefighting activities using the fire extinguisher.

[0027] (Effects of the fire extinguisher pull-out structure) Furthermore, the fire extinguisher pull-out structure includes a pull-out opening formed on the side of the housing, a fire extinguisher door positioned on the side with the pull-out opening, a pull-out housing with at least the front and bottom open and positioned to be easily inserted into and removed from the fire extinguisher storage section, a housing pull-out mechanism that supports the pull-out housing so that it can move in the pull-out direction relative to the fire extinguisher storage section, a fire extinguisher storage stand on which the fire extinguisher can be placed vertically so that it can be easily removed, and a fire extinguisher lifting mechanism that supports the fire extinguisher storage stand on the bottom side of the pull-out housing so that it can move vertically, and the housing pull-out mechanism is designed so that the user can pull it out When the drawer unit is pulled out from the side of the unit through the opening, the fire extinguisher lifting mechanism lowers the fire extinguisher storage tray so that the bottom of the fire extinguisher is positioned below the lowest part of the fire extinguisher storage compartment. When the user pulls the side fire extinguisher door of the drawer unit to the side, the drawer unit is pulled out to an exposed position on the side of the unit by the unit's pull-out mechanism. At this point, the fire extinguisher storage tray, on which the fire extinguisher is placed vertically, is lowered to a lower position by the fire extinguisher lifting mechanism, allowing the fire extinguisher that has been pulled out to the side of the unit to be easily and safely removed.

[0028] (Effects of the housing pull-out mechanism configuration) Furthermore, the housing pull-out mechanism includes a first housing pull-out mechanism located on the upper side of the fire extinguisher storage section, which supports the pull-out housing so that it can move freely in the pull-out direction, and a second housing pull-out mechanism located on the bottom side of the fire extinguisher storage section, which supports the fire extinguisher storage stand, which moves in conjunction with the movement of the pull-out housing, so that it can move freely in the pull-out direction. As a result, the pull-out operation by the user allows the pull-out housing to move smoothly from the fire extinguisher storage section toward the side of the housing by the first housing pull-out mechanism, and the fire extinguisher storage stand on which the fire extinguisher is placed, located on the bottom side of the pull-out housing, to move smoothly in the pull-out direction in accordance with the movement of the pull-out housing by the second housing pull-out mechanism.

[0029] (This effect lowers the fire extinguisher storage stand to a height where the user's feet can fit underneath.) Furthermore, the fire extinguisher lifting mechanism lowers the fire extinguisher storage stand from the bottom of the drawer housing to a predetermined height above the surface of the guardian's walkway. This predetermined height is such that when the fire extinguisher storage stand is lowered, the user's feet can fit between the bottom of the stand and the surface of the guardian's walkway. This makes it easier for the user to lift the fire extinguisher by placing their feet under the stand and bringing their body closer to the fire extinguisher, allowing them to easily and safely retrieve the fire extinguisher without losing their balance. In addition, even when the fire extinguisher storage unit is lowered, the user's feet will not get caught between the bottom of the stand and the surface of the guardian's walkway, ensuring a high level of safety.

[0030] (Effect of the fire extinguisher lifting mechanism) Furthermore, the fire extinguisher lifting mechanism has one end fixed to the upper and lower surface of the drawer housing and the other end fixed to the fire extinguisher storage base. When the drawer housing is pulled out from the side of the housing, it includes a damper device that lowers the fire extinguisher storage base by receiving the weight of the placed fire extinguisher, and a guide structure that guides the movement of the fire extinguisher storage base in the vertical direction. Therefore, when the user pulls out the drawer housing and the fire extinguisher storage base with the fire extinguisher placed vertically on it is pulled out from the side of the housing, the damper device causes the fire extinguisher storage base to descend slowly, and the guide structure also allows the fire extinguisher storage base to descend smoothly.

[0031] (Effect of one or more damper devices) Furthermore, the fire extinguisher lifting mechanism is equipped with one or more damper devices that do not require an electric or other power source. If there is one damper device, the structure is simple and costs are reduced. If there are multiple damper devices, it is possible to lower the fire extinguisher storage platform on which the fire extinguisher is placed smoothly and in a balanced manner.

[0032] (Effect of oil damper) Furthermore, the damper device is an oil damper comprising a cylinder with one end fixed to the drawer housing side, a piston slidably mounted inside the cylinder, a rod extending outward from the piston with one end in the direction of extension fixed to the fire extinguisher storage stand side, oil filled inside the cylinder, an orifice provided on the piston that generates flow resistance due to the flow of oil accompanying the movement of the piston, and a check valve provided on the piston that closes when the piston moves in one direction and opens when the piston moves in the other direction. The oil damper lowers the fire extinguisher storage stand at a predetermined speed when the drawer housing moves to the drawer position on the side of the housing, so that when a user pulls out a fire extinguisher to the drawer position on the side of the housing, the weight of the placed fire extinguisher causes the fire extinguisher storage stand to lower slowly and smoothly.

[0033] (Effect of gas dampers with lock control function) Furthermore, the damper device includes a cylinder with one end fixed to the fire extinguisher storage stand side, a first piston slidably mounted inside the cylinder, a second piston slidably mounted inside the cylinder following the first piston, a rod extending outward from the first piston with one end in the direction of extension fixed to the drawer housing side, and a first piston One side of the first cylinder chamber and the first piston and the second piston A gas damper comprising: oil filled in a second cylinder chamber between the two cylinders; inert gas filled under pressure in a third cylinder chamber on one side of the second piston; an orifice provided on the first piston that causes the oil to flow between the first and second cylinder chambers as the first piston moves, generating flow resistance; a valve provided on the first piston that opens and closes the flow path through the orifice; and a push pin that is movably provided inside the rod, with one end protruding outside the rod and the other end connected to the valve, which opens and closes the valve as the rod moves axially. The gas damper closes the flow path through the orifice by the valve when the push pin is not pushed in, and the cylinder and rod The relative movement of the cylinder is locked, and when the push pin is pressed in, the valve opens the passage through the orifice, allowing the cylinder and the valve to move. rodTo unlock the relative movement, the user pulls the fire extinguisher out to the side of the casing and pushes... pin When pressed, the lock is released, and while pressed, the fire extinguisher storage stand on which the fire extinguisher is placed can be lowered slowly and smoothly. In addition, the gas damper pushes during the descent. pin Releasing the push-in mechanism allows the fire extinguisher storage stand to stop in that position.

[0034] (Effect of unlocking) Furthermore, the gas damper operates based on the pushing operation of the push pin or the pushing motion associated with the movement of the drawer housing to the drawer position in the lateral direction of the housing, and the cylinder and rod In order to unlock the relative movement and lower the fire extinguisher storage stand at a predetermined speed, the user of the fire extinguisher can lower the fire extinguisher storage stand on which the fire extinguisher is placed by, for example, a push operation using a push button, and also stop it at any lowered position. Furthermore, the gas damper operates based on the pushing operation that accompanies the movement of the drawer housing to the drawer position in the lateral direction of the housing, and the cylinder and rod By unlocking the relative movement and lowering the fire extinguisher storage platform, for example, by using a mechanism that pushes in a push pin in response to the movement of the drawer housing to the drawer position, it is possible to automatically lower the fire extinguisher storage platform when the fire extinguisher is pulled out.

[0035] (Effect of the first guidance structure) Furthermore, the guide structure of the fire extinguisher lifting mechanism includes a cylindrical guide member, one end of which is fixed to the upper lower surface of the drawer housing and the other end of which is positioned to abut against a fire extinguisher storage stand at a predetermined drawer height. The cylindrical guide member has a damper device arranged inside and supports the upper side of the damper device. This allows for a robust structure of the fire extinguisher lifting mechanism, in which the fire extinguisher storage stand is suspended from the top of the housing by the damper device inside the drawer housing. In addition, the cylindrical guide member enables smooth guided movement of the fire extinguisher storage stand by the damper device.

[0036] (Effect of the second guidance structure) Furthermore, the guide structure of the fire extinguisher lifting mechanism includes a sheath-shaped guide fixing member positioned vertically within the drawer housing and a guide moving member positioned on the fire extinguisher storage base side and slidably inserted into the guide fixing part. For example, when the fire extinguisher storage box is suspended inside the drawer housing at two locations on the left and right by damper devices, the guide structure consisting of guide fixing members and guide moving members is provided on both sides of the damper device. This provides a robust structure for the fire extinguisher lifting mechanism that suspends the fire extinguisher storage base from the top surface of the housing using damper devices, and also enables smooth guided movement of the fire extinguisher storage base by the damper devices.

[0037] (Effect of dividing the side fire extinguisher door into drawer housings) Furthermore, the side fire extinguisher door is divided into an upper door where the main body of the drawer housing is located and a lower door where the fire extinguisher storage stand is located. The fire extinguisher storage stand is supported so as to be able to move vertically relative to the main body of the drawer housing by a fire extinguisher lifting mechanism. Compared to a structure in which the fire extinguisher storage stand is located separately from the side fire extinguisher door and is lowered by the fire extinguisher lifting mechanism, the fire extinguisher storage section is formed integrally with the lower door, making it easier to lower the fire extinguisher. In addition, the lower end of the lower door, which is part of the divided side fire extinguisher door, hits the surface of the guardian's walkway and stops as the fire extinguisher storage section descends, making it easy to secure a gap between the fire extinguisher storage section and the surface of the guardian's walkway for the user's foot to enter when retrieving the fire extinguisher.

[0038] (Effect of the opening and closing mechanism of the front panel of the fire extinguisher storage box) Furthermore, the fire extinguisher storage stand is a fire extinguisher storage box with an opening at the top. The fire extinguisher storage box is equipped with a front plate pivotally supported on the front edge of the bottom plate so as to rotate outward when it comes into contact with the fire extinguisher being removed. Therefore, when a user pulls out the fire extinguisher storage box, which has been pulled out from the side of the housing and lowered to a low position, by gripping the lever, the front plate of the fire extinguisher storage box rotates outward and opens due to the pressure from the fire extinguisher being removed. This eliminates the need to pull the fire extinguisher over the front plate, making it even easier to remove the fire extinguisher from the fire extinguisher storage box. [Brief explanation of the drawing]

[0039] [Figure 1] This is an explanatory diagram showing the installation of a fire hydrant system with fire extinguishers placed vertically, in a longitudinal section of a tunnel. [Figure 2] Figure 1 is an explanatory diagram showing the installation status of the fire hydrant system in a tunnel cross-section. [Figure 3] This is an explanatory diagram illustrating the installation status of fire hydrant systems in a tunnel cross-section. [Figure 4] This is an explanatory diagram showing the internal structure of a fire hydrant system with vertically positioned fire extinguishers, viewed from the front with the front-sloping door open. [Figure 5] This is an explanatory diagram showing a fire hydrant system with the fire extinguisher stored inside. [Figure 6] This is an explanatory diagram showing a fire hydrant system with the fire extinguisher pulled out. [Figure 7] This is an explanatory diagram showing a fire hydrant system with the extended fire extinguisher in a lowered position. [Figure 8] This is an explanatory diagram showing a fire hydrant system in which the fire extinguisher storage box has returned to its pull-out position after the fire extinguisher has been removed. [Figure 9] This is an explanatory diagram showing the drawer enclosure before the drawer mechanism is installed. [Figure 10] This is an explanatory diagram showing the internal structure of a fire hydrant system with the fire extinguisher stored inside. [Figure 11] This is an explanatory diagram showing the internal structure of a fire hydrant system with the fire extinguisher extended. [Figure 12] This is an explanatory diagram showing the internal structure of a fire hydrant system with the fire extinguisher in its lowered position after being pulled out. [Figure 13] This is an explanatory diagram showing the left side, front, and right side of the drawer enclosure after it has been removed. [Figure 14] This is an explanatory diagram showing the drawer casing and fire extinguisher storage box removed from the packaging. [Figure 15] This is an explanatory diagram showing the fire extinguisher storage section of the housing pull-out mechanism. [Figure 16] This is an explanatory diagram showing the operation of the first housing extraction mechanism after it has been removed. [Figure 17]This is a schematic diagram illustrating the configuration of a fire extinguisher lifting mechanism equipped with an oil damper. [Figure 18] This is an explanatory diagram showing a fire hydrant system in which the fire extinguisher storage box descends to create a gap for a foot. [Figure 19] This is an explanatory diagram showing a fire hydrant system in which the front panel of the fire extinguisher storage box rotates when a fire extinguisher is removed. [Figure 20] This is an explanatory diagram showing a fire hydrant system with a side fire extinguisher door that is divided into upper and lower sections, with the fire extinguisher stored inside. [Figure 21] This is an explanatory diagram showing a fire hydrant system with a side fire extinguisher door divided into upper and lower sections, with the fire extinguisher in the lowered position. [Figure 22] This is an explanatory diagram showing the internal structure of a fire hydrant system with a side fire extinguisher door that is divided into upper and lower sections, with the fire extinguisher stored inside. [Figure 23] This is an explanatory diagram showing the internal structure of a fire hydrant system with a side fire extinguisher door that is divided into upper and lower sections, with the fire extinguisher in the extended position. [Figure 24] This is an explanatory diagram showing the internal structure of a fire hydrant system with a side fire extinguisher door that is divided into upper and lower sections, with the fire extinguisher in the lowered position. [Figure 25] This is an explanatory diagram showing a fire hydrant device equipped with two oil dampers for the fire extinguisher lifting mechanism, with the drawer housing extended. [Figure 26] This is an explanatory diagram showing a fire hydrant system equipped with two oil dampers for the fire extinguisher lifting mechanism, with the fire extinguisher storage box in the lowered position. [Figure 27] This is an explanatory diagram showing the retractable housing of a fire hydrant system equipped with two oil dampers for the fire extinguisher lifting mechanism. [Figure 28] This is an explanatory diagram showing a fire hydrant device equipped with one oil damper for the fire extinguisher lifting mechanism, with the drawer housing extended. [Figure 29] This is an explanatory diagram showing a fire hydrant system equipped with one oil damper for the fire extinguisher lifting mechanism, with the fire extinguisher storage box in the lowered position. [Figure 30] This is an explanatory diagram showing the retractable housing of a fire hydrant system equipped with one oil damper for the fire extinguisher lifting mechanism. [Figure 31]This is an explanatory diagram showing a fire hydrant system equipped with a gas damper in the fire extinguisher lifting mechanism, with the drawer housing extended. [Figure 32] This is an explanatory diagram showing a fire hydrant system equipped with a gas damper in the fire extinguisher lifting mechanism, with the fire extinguisher storage box in the lowered position. [Figure 33] This is an explanatory diagram showing the retractable housing of a fire hydrant system equipped with a gas damper in the fire extinguisher lifting mechanism. [Figure 34] This is an explanatory diagram showing the gas damper extracted from Figure 33. [Figure 35] This is an explanatory diagram showing the internal structure of a gas damper in cross-section. [Figure 36] This is an explanatory diagram showing a fire hydrant system equipped with a gas damper in the fire extinguisher lifting mechanism, with the drawer housing removed and the fire extinguisher storage box in the lowered position. [Figure 37] This is an explanatory diagram showing the lock control mechanism of a gas damper. [Figure 38] This is an explanatory diagram showing the cross-section along the cutting line hh in Figure 38(A). [Figure 39] This is an explanatory diagram showing a fire extinguisher box equipped with a fire extinguisher pull-out mechanism, with the fire extinguisher stored inside. [Figure 40] This is an explanatory diagram showing a fire extinguisher box equipped with a fire extinguisher pull-out mechanism, with the fire extinguisher in the pulled-out state and the fire extinguisher in the lowered state. [Modes for carrying out the invention]

[0040] The following describes in detail an embodiment of the fire extinguisher storage device according to the present invention with reference to the drawings. However, the present invention is not limited to the following embodiments.

[0041] [Basic Concepts of the Embodiment] First, the basic concepts of the embodiment will be explained. The embodiment is, in general terms, related to a fire extinguisher storage device. Here, "fire extinguisher storage device" includes a fire hydrant device installed, for example, in a tunnel, which houses a fire hose and fire extinguishers inside a housing, or a fire extinguisher box installed, for example, in a tunnel, which houses fire extinguishers inside a housing.

[0042] Here, "fire hydrant system" refers to a type of emergency equipment installed in areas that are subject to fire suppression, such as tunnels on expressways or motorways. It consists of a housing installed in the area subject to fire suppression, containing or housing fire hydrant equipment such as fire hoses, electrical equipment such as red indicator lights and transmitters on an electrically operated door, and fire extinguishers.

[0043] Furthermore, the fire hydrant system is installed in an exposed state at a predetermined height above the road surface of a monitoring walkway provided along the inner wall of a tunnel with a road. Here, "predetermined height" refers to a height at which the fire hydrant system can be installed in close proximity to or in contact with the tunnel wall. This can be achieved, for example, by attaching and fixing the housing to the upper part of a frame installed on the road surface of the monitoring walkway, or by attaching and fixing the housing to the road-facing front part of a frame installed on the tunnel wall above the road surface of the monitoring walkway.

[0044] Furthermore, "framework" refers to a structure that supports objects using columns and beams, and although specific examples are not shown in the illustration, it includes concepts such as support base, foundation, base, pedestal, and base.

[0045] The fire hydrant device of this embodiment is characterized by having a fire extinguisher pull-out structure that allows a fire extinguisher, which is placed vertically in the fire extinguisher storage section inside the housing, to be pulled out from the side of the housing, and lowers the bottom of the pulled-out fire extinguisher so that it is positioned below the lowest part of the fire extinguisher storage section.

[0046] Therefore, when a user uses a fire extinguisher to extinguish a fire, pulling the extinguisher out from the side of the fire hydrant housing causes the extinguisher to descend to a low position close to the road surface of the guard's walkway. This prevents the extinguisher from falling and being damaged during retrieval, improving the ease of use. For example, even elderly people or women with limited strength can safely and easily retrieve the extinguisher, enabling rapid firefighting using the extinguisher.

[0047] Here, "placing a fire extinguisher vertically" means placing the fire extinguisher upright with the container facing downwards and the opening lever and locking lever facing upwards.

[0048] The "fire extinguisher pull-out structure" is a structure that lowers a fire extinguisher, which is placed vertically in the fire extinguisher storage section inside the housing, in conjunction with the user's operation of pulling it out from the side of the housing. Its shape and structure are arbitrary, but for example, it consists of a pull-out opening, a pull-out housing, a housing pull-out mechanism, a fire extinguisher storage stand, and a fire extinguisher lifting mechanism.

[0049] Here, "drawer opening" refers to an opening formed on the side of the housing on the side where the fire extinguisher is stored. "Fire extinguisher storage section" refers to a space formed inside the housing corresponding to the drawer opening. "Drawer housing" refers to a housing on the side with the drawer opening where the fire extinguisher door is located, with at least the front and bottom open, allowing the fire extinguisher to be freely inserted into and removed from the fire extinguisher storage section. "Housing drawer mechanism" refers to a mechanism that supports the drawer housing so that it can move freely in the drawer direction relative to the fire extinguisher storage section. Its structure and function are arbitrary, but for example, a drawer mechanism like those found in office desks or document lockers can be used, in which a guide rail fixed to the housing side is slidably fitted onto a guide rail fixed to the housing side, via guide rollers.

[0050] Furthermore, a "fire extinguisher storage stand" is a device that allows fire extinguishers to be placed upright and easily removed. This concept includes, for example, a fire extinguisher storage box, which is a box-shaped container with an opening at the top on which the fire extinguisher is placed. In addition, a "fire extinguisher lifting mechanism" is a mechanism that supports the fire extinguisher storage stand on the bottom side of the drawer housing so that it can move up and down. Its structure and function are arbitrary, but the drawer housing mechanism lowers the fire extinguisher storage stand so that when the user pulls the drawer housing out from the side of the housing through the drawer opening, the bottom of the fire extinguisher storage stand is positioned below the lowest part of the fire extinguisher storage section.

[0051] Furthermore, the "housing pull-out mechanism" is, for example, composed of a first housing pull-out mechanism and a second housing pull-out mechanism. Here, the "first housing pull-out mechanism" is the main housing pull-out mechanism located on the upper side of the fire extinguisher storage section, which supports the pull-out housing so that it can move freely in the pull-out direction, and enables the pull-out housing to move smoothly outwards on the side of the fire extinguisher storage section. The "second housing pull-out mechanism" is an auxiliary housing pull-out mechanism located on the bottom side of the fire extinguisher storage section, which supports the fire extinguisher storage stand so that it can move freely in the pull-out direction as the pull-out housing moves, and enables the fire extinguisher storage stand to move smoothly in the pull-out direction in accordance with the movement of the pull-out housing.

[0052] Furthermore, the "fire extinguisher lifting mechanism" consists of a damper device and a guide structure. Here, the "damper device" is fixed at one end to the lower upper surface of the drawer housing and at the other end to the fire extinguisher storage base. When the drawer housing is pulled out from the side of the housing, it lowers the fire extinguisher storage base by supporting the weight of the placed fire extinguisher. For example, an oil damper or a gas damper with a lock control function is used.

[0053] The "oil damper" has a structure comprising a cylinder with one end fixed to the drawer housing side, a piston slidably mounted inside the cylinder, a rod extending outward from the piston with one end in the direction of extension fixed to the fire extinguisher storage base side, oil filled inside the cylinder, an orifice provided on the piston that generates flow resistance due to the flow of oil accompanying the movement of the piston, and a check valve provided on the piston that closes when the piston moves in one direction and opens when the piston moves in the other direction. The oil damper lowers the fire extinguisher storage base at a predetermined speed when the drawer housing moves to the drawer position on the side of the housing.

[0054] Furthermore, the "gas damper with lock control function" includes a cylinder with one end fixed to the fire extinguisher storage stand side, a first piston slidably mounted inside the cylinder, a second piston slidably mounted inside the cylinder following the first piston, a rod extending outward from the first piston with one end in the direction of extension fixed to the drawer housing side, and a first piston One side of the first cylinder chamber and the first piston and the second piston The structure comprises oil filled in the second cylinder chamber between the two pistons, an inert gas, such as nitrogen gas, filled under pressure in the third cylinder chamber on one side of the second piston, an orifice provided on the first piston that causes the oil to flow between the first and second cylinder chambers as the first piston moves, generating flow resistance, a valve provided on the first piston that opens and closes the flow path through the orifice, and a push pin that is movably provided inside the rod, with one end protruding outside the rod and the other end connected to the valve, opening and closing the valve as it moves in the axial direction, the cylinder being positioned on the fire extinguisher storage stand side as the moving side, and the rod being on the fixed side and do Located on the drawer housing side, the valve closes the flow path through the orifice when the push pin is not pushed in, and the cylinder and rod The relative movement of the cylinder is locked, and when the push pin is pressed in, the valve opens the passage through the orifice, allowing the cylinder and the valve to move. rod This unlocks the lock and enables relative movement.

[0055] Furthermore, the gas damper with a lock control function operates based on the pushing action of the push pin or the pushing action associated with the movement of the drawer housing to the drawer position in the lateral direction of the housing, and the cylinder and rod This mechanism unlocks the relative movement of the fire extinguisher storage platform, allowing it to descend at a predetermined speed.

[0056] Furthermore, the "guide structure" provided in the "fire extinguisher lifting mechanism" is a device that guides the movement of the fire extinguisher storage platform in the vertical direction. Its structure is arbitrary, but for example, a first guide structure or a second guide structure may be provided.

[0057] Here, the "first guide structure of the fire extinguisher lifting mechanism" is defined as a cylindrical guide member having one end fixed to the upper lower surface of the drawer housing and the other end positioned to abut against a fire extinguisher storage stand at a predetermined drawer height, the cylindrical guide member having a damper device arranged inside and supporting the upper side of the damper device.

[0058] Furthermore, the "second guide structure of the fire extinguisher lifting mechanism" comprises a sheath-shaped guide fixing member, such as a guide case, arranged in the vertical direction of the drawer housing, and a guide moving member, such as a guide rail, arranged on the fire extinguisher storage base side and slidably inserted into the guide fixing part.

[0059] In another embodiment of the drawer housing provided in the fire extinguisher drawer structure, the side fire extinguisher door is divided into an upper door on which the main body of the drawer housing is located and a lower door on which the fire extinguisher storage box stand is located, and the fire extinguisher storage stand is supported by a fire extinguisher lifting mechanism so that it can move up and down relative to the main body of the drawer housing.

[0060] Furthermore, the "fire extinguisher lifting mechanism" lowers the fire extinguisher storage platform so that it is positioned at a predetermined height where the user's feet can fit between the bottom of the fire extinguisher storage platform and the surface of the supervisor's walkway. This makes it easier for users to lift the fire extinguisher by placing their feet under the fire extinguisher storage platform and bringing their body closer to the fire extinguisher. Also, even when the fire hydrant storage section is lowered, the user's feet will not be trapped between the bottom of the fire extinguisher storage platform and the surface of the supervisor's walkway.

[0061] Furthermore, the fire extinguisher storage stand with a fire extinguisher pull-out structure is a fire extinguisher storage box with an opening at the top, and the fire extinguisher storage box is equipped with a front plate pivotally supported at the front edge of the bottom plate so as to rotate outward when it comes into contact with the fire extinguisher during removal.

[0062] Furthermore, the embodiment relates to a fire extinguisher box in which a fire extinguisher is placed inside the enclosure. Here, a "fire extinguisher box" is a type of emergency equipment installed in tunnels of expressways and motorways that are designated as areas to be extinguished, and it contains a fire extinguisher inside an enclosure installed in the area to be extinguished, as well as electrical equipment such as a red indicator light and a transmitter housed in an electrically operated door.

[0063] In the embodiment of the fire extinguisher box, as in the case of the fire hydrant device described above, a "fire extinguisher pull-out structure" is provided that allows the fire extinguisher, which is placed vertically in the fire extinguisher storage section inside the housing, to be pulled out from the side of the housing, and that lowers so that the bottom of the pulled-out fire extinguisher is positioned below the lowest part of the fire extinguisher storage section.

[0064] The following describes specific embodiments. In the specific embodiments shown below, the "fire extinguisher storage device" is a "fire hydrant device," and the "fire hydrant device is mounted and fixed on a stand installed on the guardian's walkway inside the tunnel," a "fire extinguisher pull-out structure" is provided in the fire extinguisher storage section of the housing, the fire extinguisher door provided on the side of the housing near the fire extinguisher storage section is a "side fire extinguisher door," and the "damper device" is an "oil damper" or a "gas damper with a lock control mechanism." Furthermore, in the specific embodiments shown below, the case in which the "fire extinguisher storage device" is a "fire extinguisher" will also be described.

[0065] [Specific details of the embodiment] We will now explain the fire hydrant system in more detail. The explanation will be divided as follows: a. Overview of fire hydrant systems b. Installation of fire hydrant system c. Installation height and slimming of fire hydrant systems d. Configuration that accommodates the miniaturization of fire hydrant systems e. Structure of a fire hydrant system equipped with a side fire extinguisher door. e1. Structure of the first enclosure e2. Structure of the second enclosure e3. Fire extinguisher storage compartment f. Fire extinguisher drawer structure f1. Overview of the fire extinguisher drawer structure f2. Structure of the drawer enclosure g. Enclosure pull-out mechanism h. First housing extraction mechanism h1. Structure of the drawer side h2. Enclosure structure h3. Operation of the first housing extraction mechanism i. Second housing extraction mechanism j. Fire extinguisher lifting mechanism k. Fire extinguisher dispensing procedure l. Fire hydrant system where the fire extinguisher storage box lowers to a height where you can put your feet underneath. m. Opening and closing mechanism of the front panel of the fire extinguisher storage box n. Fire hydrant device with a side fire extinguisher door that is divided into upper and lower sections. o. Fire hydrant system equipped with two oil dampers p. Fire hydrant system equipped with one oil damper q. Fire hydrant system using a gas damper with lock control function Q1. Overview of the fire extinguisher lifting mechanism q2. Gas damper with lock control function q3. Structure of a gas damper with lock control function q4. Automatic lock control mechanism linked to the operation of pulling out the fire extinguisher. r. Embodiment of a fire extinguisher box s. Modified form of the present invention

[0066] [a. Overview of fire hydrant systems] A more detailed explanation of the fire hydrant system will be provided. This explanation will refer to Figure 1, an explanatory diagram showing the installation of the fire hydrant system within the tunnel in a longitudinal section (a cross-section along the tunnel's length), and Figure 2, an explanatory diagram showing the installation of the fire hydrant system in Figure 1 in a cross-sectional section of the tunnel.

[0067] As shown in Figure 1, the housing of the fire hydrant device 10 in this embodiment is divided into a first housing 11a and a second housing 11b. A decorative frame 13a is attached to the front of the first housing 11a. The door opening of the decorative frame 13a is divided into upper and lower sections. A forward-tilting door 12, which functions as a fire hydrant door, is positioned on the lower side of the door opening and opens downward by a hinge 12a. A maintenance door 14, which opens upward by a hinge 14a, is positioned on the upper side of the door opening. The storage section for fire hydrant equipment, which is inside the first housing 11a, houses predetermined fire hydrant equipment, including fire hoses and valves such as fire hydrant valves.

[0068] A decorative frame 13b is attached to the front of the second enclosure 11b. A door opening is provided on the right side of the decorative frame 13b. To the right of the door opening is an electrical door 18 that opens to the right on a hinge 18a, and to the left is an auxiliary door 20 that opens to the left on a hinge 20a, allowing access to the internal terminal boxes 26a and 26b. The electrical door 18 is equipped with electrical equipment such as a red indicator light 22, a transmitter 24, and a response lamp 25, and a telephone jack is provided on the inside.

[0069] The red indicator light 22 is always illuminated, allowing the location of the fire hydrant device 10 to be identified from a distance. When a fire occurs and the transmitter 24 is pressed, turning on the push-button switch, a transmission signal is sent, and a fire alarm is output from the disaster prevention receiving panel installed in the electrical room or elsewhere that receives this signal. The fire hydrant device 10 receives a response signal from the disaster prevention receiving panel, causing the red indicator light 22 to flash and the response lamp 25 to light up.

[0070] On the rear side of the second enclosure 11b, facing the auxiliary door 20, a high-voltage terminal box 26a and a low-voltage terminal box 26b are arranged vertically. The high-voltage terminal box 26a uses a built-in terminal block to connect the high-voltage cable drawn in from outside the fire hydrant system 10 to the red indicator light 22. The low-voltage terminal box 26b uses a built-in terminal block to connect the low-voltage cable drawn in from outside the fire hydrant system 10 to the transmitter 24, response lamp 25, telephone jack, etc.

[0071] Furthermore, the inside of the second housing 11b serves as a fire extinguisher storage area, and on the left side of the second housing 11b, which is close to the fire extinguisher storage area, a side fire extinguisher door 16 is provided in the fire extinguisher pull-out structure, as shown in Figure 2. The side fire extinguisher door 16 is equipped with a door handle 1610 and a device name display 1612 with the word "fire extinguisher" written vertically.

[0072] The latch on the side fire extinguisher door 16 is released when a road user places their hand on the door handle 1610 and pulls it towards them (to the side). When the fire extinguisher stored in the fire extinguisher compartment is pulled out to the side, it descends to the road surface of the guardian's passage 35 and becomes accessible. For this reason, an operation instruction sheet 1614 is placed on the side of the housing above the pull-out opening of the side fire extinguisher door 16, showing with diagrams how to pull out the fire extinguisher using the side fire extinguisher door 16 and make it accessible when it has descended.

[0073] Furthermore, as shown in Figure 1, the decorative frame 13b corresponding to the fire extinguisher storage compartment on the left side of the second housing 11b has the words "fire extinguisher" written horizontally on it. device A nameplate 1612, an operation indicator 1614 (the same as the one on the side of the casing in Figure 2), and a viewing window 19 are provided, and the viewing window 19 allows the presence or absence of a fire extinguisher to be confirmed from the outside.

[0074] [b. Installation of fire hydrant systems] The installation of fire hydrant equipment inside the tunnel will be explained in more detail. As shown in Figures 1 and 2, a road 15 is constructed in the longitudinal direction (left-right direction) of the tunnel at the bottom of the cylindrical (circular cross-section) tunnel structure constructed by the shield tunneling method, and a monitoring walkway 35 is constructed at a predetermined height relative to the road 15 on the lower side of the tunnel wall 17 along the rear side of the road 15.

[0075] Because it is difficult to cut out a box in the tunnel wall 17 constructed using the shield tunneling method to install the fire hydrant device 10, a support frame 30 is installed on the road surface of the monitoring walkway 35, close to the tunnel wall 17, and the connected first housing 11a and second housing 11b are attached and fixed onto the support frame 30 to install the fire hydrant device 10. Here, the height H1 of the support frame 30 is set so that the height from the road surface of the monitoring walkway 35 to the transmitter 24 placed on the fire hydrant device 10 falls within the legally stipulated range of 800 mm to 1500 mm.

[0076] Furthermore, as shown in Figure 2, the frame 30 of this embodiment has a side shape that is an inverted trapezoid with the top side longer than the bottom side, and the rear side is an inclined surface that slopes diagonally downward along the curved shape of the tunnel wall 17. The upper end surface of the frame 30 is to which the first housing 11a and the second housing 11b, to which the fire hydrant device 10 is connected, are attached and fixed. In addition, a water supply pipe 49 that rises up from inside the duct under the road surface of the monitoring walkway 35 through the frame 30 is connected to the fire hydrant device 10.

[0077] [c. Installation height and slimming of fire hydrant systems] The installation height and thinning of the fire hydrant system will be explained in more detail. For this explanation, please refer to Figure 3, an explanatory diagram that schematically shows the installation state of the fire hydrant system in the tunnel cross-section.

[0078] In this embodiment, in order to reduce the constraint on the width of the passage due to the protrusion (overhang) of the fire hydrant device 10, which is installed on the road surface of the guardian passage 35 by the support frame 30, from the tunnel wall 17, the installation height of the fire hydrant device 10 is optimized, and the fire hydrant device 10 is made as thin as possible.

[0079] First, since the installation height of the fire hydrant device 10 is determined by the support frame 30, we will explain in more detail how to optimize the height H1 of the support frame 30. The tunnel wall 17 on which the fire hydrant device 10 is installed has a circular cross-section. In Figure 3(A), the height H1 of the support frame 30 is set such that the horizontal centerline SL2 of the housing of the fire hydrant device 10, which is installed on the monitoring staff passage 35, is as close as possible to the horizontal tunnel centerline SL1 from the tunnel center (center of the circular cross-section) P.

[0080] In this case, the closer the housing centerline SL2 is to the tunnel centerline SL1, the less the fire hydrant device 10 protrudes from the tunnel wall 17.

[0081] Figure 3(B) shows the case where the height H1 of the support frame 30 is set so that the centerline SL2 of the housing coincides with the centerline SL1 of the tunnel. In this case, the degree to which the fire hydrant device 10 protrudes from the tunnel wall 17 can be minimized. However, the height H1 of the support frame 30 should be adjusted within the limits possible, taking into account the removal of fire extinguishers, etc.

[0082] Next, the thinning of the fire hydrant device 10 will be explained in more detail. The largest component in the fire hydrant device 10 in the front-to-back direction is the fire extinguisher housed in the second housing 11b. If the width (thickness in the front-to-back direction) of the fire hydrant device is the minimum value that the fire extinguisher can accommodate in the second housing 11b, then the fire hydrant device 10 can be made thinner. Therefore, the width of the fire hydrant device 10 is set to a predetermined width corresponding to the outer diameter of the fire extinguisher housed in the second housing 11b.

[0083] The outer diameter of a fire extinguisher is approximately 150-160 mm. If a gap is secured so that the stored fire extinguisher does not come into contact with the second housing 11b, the minimum width of the fire hydrant device 10 will be, for example, within a range of approximately 180-200 mm, and the width of the fire hydrant device 10 will be set to a predetermined width within that range. In contrast, the width of a conventional fire hydrant device 10, which is installed by cutting out a box in the wall of a tunnel structure, is approximately 300 mm. Therefore, the width of the fire hydrant device 10 in this embodiment can be reduced to 2 / 3 or less of the conventional width, and the fire hydrant device 10 can be made thinner.

[0084] [d. Configuration adapted to the miniaturization of fire hydrant systems] If the fire hydrant device 10 is made thinner to a predetermined width of approximately 180 to 200 mm, corresponding to the outer diameter of the fire extinguisher, it becomes difficult to store a fire extinguishing hose of a predetermined length, such as a 30 m shape-retaining hose, in the first housing 11a in an inward-curled state, as in conventional fire hydrant devices. Therefore, in this embodiment, by increasing the width (width in the left-right direction) of the first housing 11a, it becomes possible to store a shape-retaining hose of the same predetermined length as in conventional devices in an inward-curled state.

[0085] Furthermore, with the thinning of the fire hydrant device 10, it becomes difficult to place terminal boxes 26a and 26b on the rear surface of the housing behind the fire extinguisher storage section where the fire extinguisher is housed, as in conventional fire hydrant devices. Therefore, in this embodiment, the width (length in the left-right direction) of the second housing 11b is increased to accommodate not only the fire extinguisher storage but also electrical equipment and terminal boxes.

[0086] [e. Structure of a fire hydrant system equipped with a side fire extinguisher door] The structure of a fire hydrant system equipped with a side fire extinguisher door will be described in more detail. In this description, refer to Figure 4, which shows the internal structure of the fire hydrant system from the front with the front-sloping door open.

[0087] (e1. Structure of the first enclosure) The structure of the first housing 11a will be described in more detail. As shown in Figure 4, The interior of the first housing 11a, which houses the water supply piping equipment, consists of a valve storage section 50a and a hose storage section 50b. It is divided into two sections. The valve storage section 50a is accessed from below through the frame 30. Water supply pipe 49The water is drawn in and connected to the water tap 52, and the water supply pipe 49 also branches downward, with a fire hydrant valve 54 and an automatic pressure regulating valve 56 provided at the branch end, followed by a fire extinguishing hose 60 using a shape-retaining hose.

[0088] The fire hydrant valve 54 is opened and closed by a fire hydrant valve opening / closing lever 58. When the fire hydrant valve opening / closing lever 58 is opened or closed, the fire hydrant valve 54 is remotely opened and closed by a known wire linkage mechanism. When the fire hydrant valve opening / closing lever 58 is opened or closed, a pump activation interlocking switch (not shown) located in the control box is turned on or off. In addition, a pump activation switch 64 for use by the fire brigade is located to the upper right of the water tap 52.

[0089] A hose storage frame 62 is provided in the hose storage section 50b, and the fire extinguishing hose 60, which is pulled in from below, is stored in a clockwise or counterclockwise inward-curved state. Here, the hose storage frame 62 has been widened to accommodate the increased width of the first housing 11a due to the thinning of the fire extinguishing device 10, and it is possible to store the same predetermined length of fire extinguishing hose 60 with fewer turns compared to conventional fire extinguishing devices. In addition, a nozzle 68 is attached to the end of the fire extinguishing hose 60 that is pulled out through the hose guide 66, and the nozzle 68 is detachably held in the nozzle holder 70.

[0090] (e2. Structure of the second enclosure) The structure of the electrical equipment placement side of the second housing 11b will now be explained in more detail. As shown in Figure 4, the interior of the second housing 11b is a fire extinguisher storage section 50c (see Figure 11). An electrical equipment door 18 that opens horizontally to the right by a hinge 18a is located in the door opening on the front right side of the second housing 11b. The electrical equipment door 18 has, from top to bottom, a red indicator light 22, a transmitter 24, a telephone jack 28, and an answer lamp 25, with the telephone jack 28 located on the inside of the electrical equipment door 18.

[0091] Here, among the electrical equipment, the largest in the front-to-back direction within the fire extinguisher storage section 50c, which is located inside the second housing 11b, is the red indicator light 22, which measures approximately 120 mm. Therefore, even if the fire hydrant device 10 is made thinner to a predetermined width of approximately 180 to 200 mm, it is possible to arrange the electrical equipment while still securing space for the cables pulled in from the first housing 11a.

[0092] Furthermore, an auxiliary door 20 that opens horizontally to the left by a hinge 20a is located to the left of the electrical door 18, and terminal boxes 26a and 26b are arranged vertically on the rear surface of the second housing 11b opposite the auxiliary door 20.

[0093] The terminal boxes 26a and 26b consist of a box body and a lid, and when placed on the second enclosure 11b, their dimensions (height (top and bottom) x width (left and right) x depth (front and back)) are approximately 220mm x 140mm x 80mm.

[0094] Therefore, even if the fire hydrant device 10 is made thinner to a predetermined width in the range of approximately 180 to 200 mm, the depth (front to back) of the terminal boxes 26a and 26b is approximately 80 mm, so sufficient space is secured inside the second housing 11b to accommodate the terminal boxes 26a and 26b. Electrical system Since the terminal boxes 26a and 26b are located close to electrical equipment such as the red indicator light 22 on the door 18, connections between the terminal boxes 26a and 26b and the electrical equipment can be made with short wiring lengths.

[0095] Therefore, during the assembly of the second enclosure 11b at the factory, the front of the second enclosure 11b can be opened by opening the electrical door 18 and the auxiliary door 20, making it easy to connect the terminal blocks 26a and 26b with the electrical equipment located on the electrical door 18 using signal wires.

[0096] Furthermore, when installing the fire hydrant system 10 inside the tunnel, the electrical door 18 and auxiliary door 20 can be unlocked and opened to easily connect the cables drawn in from the first housing 11a side to the terminal boxes 26a and 26b.

[0097] (e3. Fire extinguisher storage area) As shown in Figure 4, the interior of the second housing 11b is a fire extinguisher storage section, and two fire extinguishers 72 with an outer diameter of approximately 150 to 160 mm are stored there by a fire extinguisher pull-out structure. Furthermore, as mentioned above, in order to make the fire hydrant device 10 thinner, the width of the fire hydrant device 10 is a predetermined width in the range of 180 to 200 mm corresponding to the outer diameter of the fire extinguishers 72, and a gap of approximately 15 to 25 mm is secured in front of and behind the stored fire extinguishers 72 by the fire extinguisher pull-out structure, so that the fire extinguishers 72 can be stored without coming into contact with the second housing 11b.

[0098] Furthermore, a drawer housing 32 with a fire extinguisher pull-out structure is placed inside the second housing 11b, and two fire extinguishers 72 are placed vertically in a fire extinguisher storage box 34 located at the bottom of the drawer housing 32 so that they can be easily removed.

[0099] [f. Fire extinguisher drawer structure] The fire extinguisher pull-out structure will now be described. The fire extinguisher pull-out structure allows the fire extinguisher, which is placed vertically inside the housing, to be pulled out from the side of the housing, and lowers so that the bottom of the pulled-out fire extinguisher is positioned below the lowest part of the fire extinguisher storage compartment.

[0100] (f1. Overview of the fire extinguisher pull-out structure) First, we will explain the outline of the fire extinguisher pull-out structure provided in the fire hydrant system. In this explanation, please refer to Figure 5, which shows the fire hydrant system with the fire extinguisher stored inside; Figure 6, which shows the fire hydrant system with the fire extinguisher pulled out; Figure 7, which shows the fire hydrant system with the fire extinguisher pulled out and lowered; and Figure 8, which shows the fire hydrant system with the fire extinguisher storage box returned to the pull-out position after the fire extinguisher has been removed.

[0101] First, as shown in Figure 5, the fire hydrant device 10 is installed at a predetermined height on a frame 30 positioned close to the tunnel wall on the road surface of the monitoring staff passage. Under normal circumstances, the side fire extinguisher door 16 on the left side of the second housing 11b is closed, and two fire extinguishers are stored inside in a vertical position.

[0102] When a user wants to use a fire extinguisher, they place their hand on the door handle 1610 of the side fire extinguisher door 16 and pull it forward (to the side) to release the latch. As shown in Figure 6, the drawer housing 32 is pulled out from the drawer opening 45 by the housing drawer mechanism equipped with a drawer-side guide rail 36. Consequently, the two fire extinguishers 72, which are placed in the fire extinguisher storage box 34 supported by a fire extinguisher lifting mechanism equipped with a damper device at the bottom of the drawer housing 32, are pulled out to the side of the second housing 11b.

[0103] In this manner, when the drawer housing 32 is pulled out to the side of the second housing 11b, the fire extinguisher storage box 34, which holds the two fire extinguishers 72, is lowered by the damper device of the fire extinguisher lifting mechanism. When the lowered fire extinguisher storage box 34 is positioned at a predetermined height above the road surface of the guardian's walkway, the retrieval position of the fire extinguishers 72 is lowered, making it possible to easily retrieve the fire extinguishers 72.

[0104] Furthermore, if a user takes out a fire extinguisher 72 and extinguishes a fire, the road administrator stores the unused fire extinguisher in the fire hydrant device 10. In this case, as shown in Figure 7, the fire extinguisher storage box 34, which had been lowered to the road surface of the guardian's walkway, is raised and held to a height that allows it to be stored in the drawer opening 45 of the second housing 11b, as shown in Figure 8. In this state, the road administrator places the unused fire extinguisher 72 in the fire extinguisher holder 3410 of the fire extinguisher storage box 34, pushes the side fire extinguisher door 16 until the door handle 1610 locks, and stores the drawer housing 32 in the fire extinguisher storage section, thereby restoring the fire hydrant device 10.

[0105] (f2. Structure of the drawer enclosure) The structure of the drawer housing will be explained in more detail. In this explanation, refer to Figure 9, which shows the drawer housing before the drawer housing mechanism is installed. Figure 9(A) shows the left side of the drawer housing, Figure 9(B) shows its front, and Figure 9(C) shows the cross-section along the cutting line aa in Figure 9(B).

[0106] Before the drawer mechanism was installed, the drawer enclosure 32 had a left side side fire extinguisher A door 16 is positioned, with at least the front and bottom openings, and a fire extinguisher storage box 34 is supported on the bottom side via a fire extinguisher lifting mechanism. The fire extinguisher storage box 34 is positioned to be easily inserted into and removed from the fire extinguisher storage section 50c via a drawer opening 45 of the second housing 11b.

[0107] More specifically, as shown in Figure 9, the drawer housing 32 consists of a side fire extinguisher door 16 and a drawer housing body 3210. The drawer housing body 3210 consists of a top surface 3212, a rear surface 3214, and a right side surface 3216. The side fire extinguisher door 16 is located on the left side of the housing and has an open structure on the front and bottom. The top surface 3212 is positioned a predetermined height lower than the upper end of the side fire extinguisher door 16, and space for the guide rails of the housing drawer mechanism is secured above the top surface 3212. A handle mounting opening 3218 is also formed at the top of the side fire extinguisher door 16.

[0108] [g. Enclosure pull-out mechanism] The housing pull-out mechanism will be explained in more detail. In this explanation, refer to Figure 10, which shows the internal structure of the fire hydrant system with the fire extinguisher stored inside; Figure 11, which shows the internal structure of the fire hydrant system with the fire extinguisher pulled out; Figure 12, which shows the internal structure of the fire hydrant system with the pulled-out fire extinguisher lowered; Figure 13, which shows the left side, front, and right side views of the pull-out housing of the fire extinguisher pull-out structure after it has been removed; Figure 14, which shows the top view, the cross section of the cutting line bb in Figure 13(B), and an enlarged view of part A in Figure 13(C) after the pull-out housing of the fire extinguisher pull-out structure has been removed; Figure 15, which shows the housing side of the fire extinguisher pull-out structure; Figure 16, which shows the operation of the first housing pull-out mechanism of the fire extinguisher pull-out structure after it has been removed; and Figure 17, which schematically shows the configuration of the fire extinguisher lifting mechanism equipped with an oil damper.

[0109] The housing pull-out mechanism is a structure for inserting and removing the fire extinguisher from the housing, and its shape and structure are arbitrary, but it is composed of a first housing pull-out mechanism and a second housing pull-out mechanism. The first housing pull-out mechanism is, for example, located on the upper side of the fire extinguisher storage section 50c (see Figure 11), as shown in the fire extinguisher storage state in Figure 10, and is the main part of the housing pull-out mechanism that supports the pull-out housing 32 so that it can move freely in the pull-out direction. In contrast, the second housing pull-out mechanism 48 is, for example, located on the bottom side of the fire extinguisher storage section 50c, as shown in the fire extinguisher pull-out state in Figure 11, and is an auxiliary part of the housing pull-out mechanism that supports the fire extinguisher storage box 34, which moves along with the movement of the pull-out housing 32, so that it can move freely in the pull-out direction.

[0110] [h. First housing extraction mechanism] The first housing pull-out mechanism, which is positioned on the upper side of the fire extinguisher storage section 50c and supports the pull-out housing 32 so as to be movable in the pull-out direction, will be described in more detail.

[0111] (h1. Structure of the drawer side) The structure of the drawer side of the first housing drawer mechanism will now be described in more detail. As shown in Figures 13(B)(C) and 14(A), on both sides of the upper surface of the drawer housing body 3210 shown in Figure 9, two drawer-side guide rails 36 of the first housing drawer mechanism, which support the drawer housing 32 so as to be movable in the drawer direction (left and right direction) relative to the fire extinguisher storage section 50c of the second housing 11b, are fixed by support members 37.

[0112] The drawer-side guide rail 36 is as shown in Figure 14(C), which is an enlarged view of part A in Figure 13(C), cabinet A rail projection 3610 with a rectangular cross-section is fixed to the outside of a support member 37 fixed to the upper surface of 32, and is formed facing outwards. Also, as shown in Figure 13(B), a roller 3614 is provided at the rear (right) end of the housing-side guide rail 36, and a stopper piece 3612 with an inclined surface that is raised on the front (left) side is formed above the roller 3614.

[0113] drawer cabinet The side fire extinguisher door 16, fixed to the left side of unit 32, is equipped with a door handle 1610 and a device name display 1612 with the word "fire extinguisher" written vertically. The door handle 1610 has a latch claw 1616 facing upward on the back side of the door. When the door handle 1610 is pulled forward, the latch claw 1616 retracts, releasing the door lock on the pull-out opening 45 on the side of the housing, allowing it to be pulled out.

[0114] (h2. Structure of the enclosure) The structure of the housing side of the first housing pull-out mechanism will be explained in more detail. Drawer enclosure The upper part of 32 is supported so as to be movable in the pulling direction, and its shape and structure are arbitrary, but as shown in Figure 15, the housing-side guide rails 42 are fixed to both sides of the upper part of the fire extinguisher storage section 50c which is inside the second housing 11b. Figure 15(A) shows the left side of the second housing 11b, Figure 15(B) shows the front cross section, and Figure 15(C) shows the cross section at the cutting line cc in Figure 15(B).

[0115] The housing-side guide rail 42 has a predetermined length that is the same as or longer than the pull-out side guide rail 36 shown in Figure 13. Furthermore, as shown in Figure 15(D), which is an enlarged view of section B in Figure 15(A), the housing-side guide rail 42 is a U-shaped frame plate member that opens horizontally, and the roller 3614 positioned at the tip of the pull-out side guide rail 36 shown in Figure 13 rolls inside the U-shaped frame plate member.

[0116] Furthermore, the housing-side guide rail 42 has an opening 4210 that widens at the top towards the drawer opening 45, allowing the roller 3614 at the rear end of the drawer-side guide rail 36 shown in Figure 13 to be inserted into the rail from diagonally above. In addition, a stopper 4214 is fixed to the upper side of the opening 4210 of the housing-side guide rail 42 with a predetermined gap between them, so that when the drawer-side guide rail 36, which is fitted into the housing-side guide rail 42, is pulled out, the stopper piece 3612 comes into contact with it and prevents it from coming out.

[0117] Furthermore, a roller 4212 is positioned below the opening 4210 of the housing-side guide rail 42. As shown in Figure 15(D), the upper side of the roller 4212 extends inward beyond the bottom surface of the housing-side guide rail 42, allowing the lower surface of the rail projection 3610 of the pull-out side guide rail 36, which is inserted into the housing-side guide rail 42, to move while resting on the roller 4212.

[0118] (h3. Operation of the first housing extraction mechanism) The operation of the first housing pull-out mechanism will be explained in more detail. In this explanation, we will refer to Figure 16, which shows the operation of the first housing pull-out mechanism after it has been removed. Figure 16(A) shows the state in which the pull-out side has been removed, Figure 16(B) shows the initial state in which the pull-out side has been fitted or fully pulled out, Figure 16(C) shows the state in which it has been pulled out in the middle, and Figure 16(D) shows the state in which the pull-out side has been closed. Also, in Figures 16(A) to (D), the housing side guide rail 42 is shown in a transparent view.

[0119] During the manufacturing stage of the fire hydrant system, when storing the drawer unit 32 in the fire extinguisher storage section 50c on the housing side, as shown in Figure 16(A), the worker aligns the roller 3614 at the tip of the drawer-side guide rail 36 provided on the drawer unit 32 side with the opening 4210 of the housing-side guide rail 42, and inserts the drawer-side guide rail 36 into the housing-side guide rail 42 at an angle downward. At this time, the stopper piece 3612 of the drawer-side guide rail 36 is inserted so that it passes over the stopper 4214 on the housing side.

[0120] As a result, as shown in Figure 16(B), the roller 3614 of the pull-out side guide rail 36 enters the housing side guide rail 42, the roller 4212 contacts the lower side of the rail projection 3610 of the housing side guide rail 36, and the stopper piece 3612 abuts against the stopper 4214, preventing it from coming out. This state, as shown in Figures 11 and 12, is the position where the pull-out housing 32 is pulled out as far as it will be from the fire extinguisher storage section 50c.

[0121] Next, when the side fire extinguisher door 16 is pushed in, as shown in Figure 16(C), the rolling of rollers 3614 and 4212 causes the pull-out side guide rail 36 to move smoothly relative to the housing side guide rail 42, and as shown in Figure 16(D), the pull-out housing 32 moves to a position where it is fully stored in the fire extinguisher storage section 50c. At this time, the latch claw 1616 provided on the door handle 1610 of the side fire extinguisher door 16 shown in Figure 13(C) engages with the receiving member 1618 shown in Figure 15(A), and the side fire extinguisher door 16 is locked in the closed position. This state is the fire hydrant shown in Figure 10. Device Unit 10 will be in its normal installed state with fire extinguisher 72 stored inside.

[0122] [i. Second housing extraction mechanism] Next, the second housing pull-out mechanism will be described in more detail. As shown in Figure 15, the second housing pull-out mechanism 48 is located on the bottom side of the fire extinguisher storage section 50c and is an auxiliary housing pull-out mechanism that supports the fire extinguisher storage box 34, which moves in conjunction with the movement of the pull-out housing 32, so that it can move freely in the pull-out direction.

[0123] Here, we will explain the reason for providing the second housing pull-out mechanism 48. As shown in Figure 13, the fire extinguisher storage box 34 has an oil damper 38 inside the pull-out housing 32 and Cylindrical guide The fire extinguisher storage box 34 is suspended and supported by a fire extinguisher lifting mechanism composed of component 40, and moves via the fire extinguisher lifting mechanism as the drawer housing 32 moves. However, if left as is, the support during movement would be unstable. Therefore, in order to support the fire extinguisher storage box 34 so that it can move freely in the drawer direction as the drawer housing 32 moves, a second housing drawer mechanism 48 is provided at the bottom of the fire extinguisher storage section 50c, as shown in Figures 15(A) and (B).

[0124] The shape and structure of the second housing pull-out mechanism 48 are arbitrary, but for example, guide rollers 4810 are rotatably provided on both sides of multiple points in the direction of movement of the roller base 4812 located at the bottom of the housing.

[0125] As shown in Figure 10, the fire extinguisher storage box 34, which is suspended and supported inside the drawer housing 32 by the fire extinguisher lifting mechanism, is placed on the guide roller 4810 of the second housing drawer mechanism 48, and therefore, as shown in Figure 11, Fire extinguisher storage box As the 34 moves, it is possible to move it smoothly in the pulling direction via the fire extinguisher pulling mechanism.

[0126] [j. Fire extinguisher lifting mechanism] Next, the fire extinguisher lifting mechanism will be explained in more detail. The fire extinguisher lifting mechanism is a mechanism that lowers the fire extinguisher storage box 34 so that when a user pulls out the drawer housing 32 from the drawer opening 45 to the outside of the housing to the side, the bottom of the pulled-out fire extinguisher 72 is positioned below the lowest part of the fire extinguisher storage section 50c. Its shape and structure are arbitrary, but for example, as shown in Figure 13, it consists of an oil damper 38 and a cylindrical guide member 40.

[0127] The cylindrical guide member 40 corresponds to the first guide structure and, as shown in Figure 14(B), is positioned facing downwards with its upper end fixed to four corners of the upper and lower surfaces of the drawer housing 32, and its lower end is long enough to abut the bottom surface of the fire extinguisher storage box 34. Here, the fire extinguisher storage box 34 is a box member with an opening at the top, and a shallow cylindrical fire extinguisher holder 3410 made of rubber or the like is positioned at the bottom to hold two fire extinguishers 72 vertically.

[0128] An oil damper 38 is positioned inside the cylindrical guide member 40. The upper end of the oil damper 38, which is on the cylinder side, is fixed to the cylindrical guide member 40 by a fixing part 44, for example, a through bolt, and the lower end, which is on the rod side, is fixed to the bottom plate of the fire extinguisher storage box 34 by a fixing part 46.

[0129] As schematically shown in Figure 17(A), the oil damper 38 has a piston 3812 slidably mounted inside a cylinder 3810, with a rod 3814 extending outward from the piston 3812. The inside of the cylinder 3810 is filled with oil.

[0130] The piston 3812 is equipped with an orifice 3816 and a check valve 3818. The orifice 3816 generates flow resistance due to the flow of oil accompanying the movement of the piston 3812. The check valve 3818 closes as the piston 3812 moves downward and opens as the piston 3812 moves upward. The upper end of the cylinder 3810 is fixed inside the cylindrical guide member 40, and the lower end of the rod 3812 is fixed to the bottom plate of the fire extinguisher storage box 34.

[0131] Therefore, as shown in Figure 11, when the drawer housing 32 is pulled out from the fire extinguisher storage section 50c to the drawer position on the lateral exterior of the second housing 11b, the load on the fire extinguisher storage box 34 becomes, for example, a load of about 20 kg, including the two fire extinguishers 72 placed vertically. As shown in Figure 17(B), the oil damper 38 receives the load on the fire extinguisher storage box 34, causing the piston 3812 to move downward within the cylinder 3810, and as shown in Figure 12, the fire extinguisher storage box 34 is lowered with the fire extinguishers 72 placed inside. The downward speed of the piston 3812 at this time is determined by the flow resistance of the oil flowing through the orifice 3816, and the fire extinguisher storage box 34 descends slowly, without causing any impact even when it reaches the road surface of the guard's passage 35.

[0132] On the other hand, when a road administrator stores an unused fire extinguisher in the fire hydrant system 10 after a user has used the fire extinguisher to extinguish a fire, the fire extinguisher storage box 34, which is in the lowered position shown in Figure 12, is raised to a position where it fits into the bottom of the drawer housing 32, as shown in Figure 8. In this state, the right side of the drawer housing 32 is pushed slightly into the fire extinguisher storage section 50c to hold it in place, the fire extinguisher 72 is placed vertically there, and the drawer housing 32 is pushed into the fire extinguisher storage section 50c to return it to the state shown in Figure 5. As the piston 3812 rises along with the raising of the fire extinguisher storage box 34 at this time, the check valve 3818 opens, opening the flow path through the piston 3812, and the fire extinguisher storage box 34 can be raised with little force without being subjected to flow resistance by the orifice 3816.

[0133] [k. Operation to pull out the fire extinguisher] The operation of pulling out the fire extinguisher using the housing pull-out structure will be explained in more detail. As shown in Figure 5, under normal circumstances, the side fire extinguisher door 16 of the fire hydrant device 10 is locked in the closed position, and as shown in Figure 10, the side fire extinguisher door 16 is held in a position that closes the pull-out opening 45 on the side of the housing, and the pull-out housing 32 on which the two fire extinguishers 72 are placed is housed in the fire extinguisher storage section 50c of the second housing 11b.

[0134] When a user wants to use the fire extinguisher, the lock is released by pulling the door handle 1610 of the side fire extinguisher door 16 towards them, and as shown in Figure 6, the drawer housing 32 on which the fire extinguisher 72 is placed opens to the drawer. 45 It is pulled outwards. At this time, as shown in Figure 11, the pull-out side guide rail 36 of the pull-out housing 32 in the first housing pull-out mechanism moves to the stroke end while being subjected to the rolling of rollers 3614 and 4212 along the housing-side guide rail 42 on the second housing 11b side. At this time, the pull-out housing 32 on which the two fire extinguishers 72 are placed experiences a rotational moment due to the load acting on roller 3614, but roller 4212 acts as a stopper supporting the pull-out side guide rail 36, preventing downward rotation. In addition, the fire extinguisher storage box 34, which is suspended and supported via a fire extinguisher lifting mechanism composed of an oil damper 38 and a cylindrical guide member 40, moves smoothly with the two fire extinguishers 72 placed vertically inside, due to the rolling of the guide roller 4810 of the second housing pull-out mechanism 48 located at the bottom of the fire extinguisher storage section 50c.

[0135] As shown in Figures 6 and 11, when the drawer housing 32 is fully pulled out to the side of the housing, as shown in Figures 7 and 12, the rod 3814 of the oil damper 38 moves downward under the load of the two fire extinguishers 72 placed in the fire extinguisher storage box 34, causing the fire extinguisher storage box 34 to lower to a position where the lower end of the side fire extinguisher door 16 touches the road surface of the supervisor's passage 35. As a result, the retrieval position of the fire extinguishers 72 is lowered, allowing users to easily retrieve the fire extinguishers 72 without dropping and damaging them.

[0136] Furthermore, as shown in Figure 12, since the fire extinguisher 72, which is pulled out to the side of the housing, has an open space in front of and above it, users can easily remove the fire extinguisher 72 from the fire extinguisher storage box 34 that has been lowered to the ground surface of the supervisor's passage 35 by grasping the lower fixing lever 7212 of the two fixing levers 7210 and fixing levers 7212 located on the top of the fire extinguisher 72 and lifting it upwards.

[0137] In this way, the operation of gripping the fixed lever 7212 and lifting it from bottom to top allows the user to exert force in a comfortable posture, making it easy for even vulnerable users such as women and the elderly to take out and use the fire extinguisher.

[0138] Furthermore, since the fire extinguisher 72 can be pulled out to the outside of the side of the fire hydrant device 10 housing, the monitoring staff passage 35 in the front direction of the housing through which evacuees pass is not restricted, and the fire extinguisher 72 can be pulled out and removed without obstructing passage in the monitoring staff passage 35.

[0139] [l. A fire hydrant system in which the fire extinguisher storage box lowers to a height where you can put your feet underneath.] Next, we will explain in more detail a fire hydrant system in which the fire extinguisher storage box lowers to a height that allows a user's feet to fit underneath. In this explanation, refer to Figure 18, which shows a fire hydrant system in which the fire extinguisher storage box lowers so that a gap is formed between the bottom of the fire extinguisher storage box and the road surface of the supervisor's walkway that allows a user's feet to fit underneath.

[0140] As shown in Figure 18, the fire extinguisher lifting mechanism of this embodiment is composed of an oil damper 38 and a cylindrical guide member 40, similar to the embodiments in Figures 5 to 17. The length of the rod 3814 provided on the oil damper 38 is set such that, when the fire extinguisher storage box 34 is lowered by the piston inside the cylinder, a gap of a predetermined height H2 is formed between the bottom of the fire extinguisher storage box 34 and the road surface of the supervisor's passage 35, allowing the user's foot to fit in when retrieving the fire extinguisher. The height H2 is arbitrary, but for example, it is about 10 cm.

[0141] Therefore, a user who pulls out the drawer housing 32 to the side outside of the fire hydrant device 10 will find the lowered fire extinguisher storage Delivery By placing your feet under box 34 and bringing your body closer to the fire extinguisher 72, it becomes possible to easily lift it, allowing you to easily and safely retrieve the fire extinguisher without losing your balance. Also, fire hydrant storage box When the 34 descends, there is no risk of it trapping a user's feet, ensuring a high level of safety.

[0142] [m. Opening and closing mechanism of the front panel of the fire extinguisher storage box] Next, an embodiment of a fire hydrant system equipped with an opening and closing mechanism for the front panel of the fire extinguisher storage box will be described in more detail. In this description, the fire extinguisher will be removed. Ta Refer to Figure 19, which shows a fire hydrant device in which the front panel of the fire extinguisher storage box rotates. Figure 19(A) shows the state in which the fire extinguisher is pulled out and lowered for removal, and Figure 19(B) shows the opening and closing structure of the fire extinguisher storage box.

[0143] As shown in Figure 19(A), the fire extinguisher pull-out structure of this embodiment is the same as that of the embodiments shown in Figures 5 to 17. However, as shown in Figure 19(B), the fire extinguisher storage box 34 has an opening and closing structure in which the front plate 3412, which constitutes the front side of the fire extinguisher storage box 34, is pivotally supported by a spring hinge 3414 at the front edge of the bottom plate in a closed position, so that it rotates outward when it comes into contact with the fire extinguisher during removal.

[0144] Therefore, as shown in Figure 19(A), when a user pulls the lever to take out the fire extinguisher 72 from the fire extinguisher storage box 34, which has been pulled out to the side of the housing and lowered to a low position, the front plate 3412 of the fire extinguisher storage box 34 rotates outward and opens due to the pressure from the fire extinguisher 72 being taken out. As a result, there is no need to lift the fire extinguisher 72 over the front plate 3412 to take it out, making it even easier to take out the fire extinguisher 72 from the fire extinguisher storage box 34.

[0145] [n. Fire hydrant device with a side fire extinguisher door that is divided into upper and lower sections] Next, we will explain in more detail a fire hydrant device in which the side fire extinguisher door of the drawer housing is divided into upper and lower sections in a fire extinguisher drawer structure.

[0146] In this explanation, please refer to Figure 20, which shows a fire hydrant device with a side fire extinguisher door divided into upper and lower sections with the fire extinguisher stored inside; Figure 21, which shows a fire hydrant device with a side fire extinguisher door divided into upper and lower sections with the fire extinguisher in the lowered position; Figure 22, which shows the internal structure of a fire hydrant device with a side fire extinguisher door divided into upper and lower sections with the fire extinguisher stored inside; Figure 23, which shows the internal structure of a fire hydrant device with a side fire extinguisher door divided into upper and lower sections with the fire extinguisher pulled out; and Figure 24, which shows the internal structure of a fire hydrant device with a side fire extinguisher door divided into upper and lower sections with the fire extinguisher in the lowered position.

[0147] As shown in Figures 20 to 24, the side fire extinguisher door 16 of the drawer housing 32 is divided into an upper door 1620 and a lower door 1630. The main body of the drawer housing 32 is located on the upper door 1620 side, and the fire extinguisher storage box 34 is located on the lower door 1630 side, with the lower door 1630 being part of the box panel.

[0148] The fire extinguisher lifting mechanism consists of an oil damper 38 and a cylindrical guide member 4010 fixed upright on the inside corner of the fire extinguisher storage box 34. The upper end of the oil damper 38, which is on the cylinder side, is fixed to the drawer housing 32, and the rod 3814, which is pulled out downward, passes through the cylindrical guide member 4010 and is fixed to the bottom surface of the fire extinguisher storage box 34. The rest of the structure is the same as the embodiment shown in Figures 5 to 18, so the same reference numerals are used and their description is omitted.

[0149] In the fire hydrant device of this embodiment, as shown in Figure 20, under normal circumstances, the side fire extinguisher door 16, which is divided into an upper door 1620 and a lower door 1630 of the fire hydrant device 10, is locked in the closed position. As shown in Figure 22, the side fire extinguisher door 16 is held in a position that closes the drawer opening on the side of the housing, so that the drawer housing 32, on which two fire extinguishers 72 are placed in the fire extinguisher storage box 34, is housed in the fire extinguisher storage section 50c of the second housing 11b.

[0150] When a user wants to use a fire extinguisher, the lock is released by pulling the door handle 1610 of the side fire extinguisher door 16 towards them, and as shown in Figure 23, the drawer housing 32 with the fire extinguishers 72 placed in the fire extinguisher storage box 34 is pulled out to the outside through the drawer opening 45. At this time, the fire extinguisher storage box 34, which is suspended and supported via a fire extinguisher lifting mechanism composed of an oil damper 38 and a cylindrical guide member 4010, moves smoothly outward with the two fire extinguishers 72 placed vertically inside, due to the rolling of the guide roller 4810 of the second housing drawer mechanism 48 located at the bottom of the fire extinguisher storage section 50c.

[0151] As shown in Figure 23, when the drawer housing 32 is fully pulled out to the side of the housing, as shown in Figures 21 and 24, the rod 3814 of the oil damper 38 moves downward in response to the weight of the two fire extinguishers 72 placed in the fire extinguisher storage box 34, causing the fire extinguisher storage box 34 with the lower door 1630 to be lowered to a position where the lower end of the lower door 1630 touches the road surface of the supervisor's passage 35, thereby lowering the retrieval position of the fire extinguishers 72 and making it possible to easily retrieve the fire extinguishers 72.

[0152] As shown in Figure 24, when the fire extinguisher storage box 34 is lowered and the lower end of the lower door 1630 comes into contact with the surface of the guardian's passage 35, the height from the lower bottom of the fire extinguisher storage box 34 to the lower end of the lower door 1630 is set so that a gap of height H2 is formed between the lower bottom of the fire extinguisher storage box 34 and the surface of the guardian's passage 35, allowing a user to put their foot in to retrieve the fire extinguisher. The height H2 is arbitrary, but a sufficient height for a user to put their foot in comfortably, for example, about 10 cm, is ensured.

[0153] [o. Fire hydrant system equipped with two oil dampers] Next, we will describe in more detail a fire hydrant device equipped with two oil dampers in a fire extinguisher lifting mechanism with a fire extinguisher pull-out structure. In this description, refer to Figure 25, which shows the fire hydrant device equipped with two oil dampers of the fire extinguisher lifting mechanism in the pulled-out state of the pull-out housing; Figure 26, which shows the fire hydrant device equipped with two oil dampers of the fire extinguisher lifting mechanism in the lowered state of the fire extinguisher storage box; and Figure 27, which shows the fire hydrant device equipped with two oil dampers of the fire extinguisher lifting mechanism with the pull-out housing removed. Note that Figure 27(A) shows the front view, Figure 27(B) shows the cross-section along the cutting line dd of Figure 27(A), and Figure 27(C) shows the cross-section along the cutting line ee of Figure 27(B).

[0154] As shown in Figures 25 to 27, the side fire extinguisher door 16 of this embodiment is divided into an upper door 1620 and a lower door 1630, similar to the embodiments in Figures 20 to 24. The main body of the drawer housing 32 is located on the upper door 1620 side, and the fire extinguisher storage box 34 is located on the lower door 1630 side, with the lower door 1630 being part of the box panel.

[0155] The fire extinguisher lifting mechanism consists of two cylindrical guide members 4012, each with its upper end fixed to the upper and lower surfaces of the drawer housing 32 and positioned at two locations on the left and right; two cylindrical guide members 4010, which are positioned vertically opposite to the cylindrical guide members 4012 and stand upright on the bottom surface of the fire extinguisher storage box 34; and two oil dampers 38, which are positioned inside the cylindrical guide members 4010 and 4012.

[0156] The oil damper 38 is housed in the cylindrical guide member 4012, with its upper end on the cylinder side supported by a fixing part 44 such as a through bolt, and a rod 3814 extending downward from the cylinder side passes through the cylindrical guide member 4010 and is fixed to the bottom surface of the fire extinguisher storage box 34.

[0157] Furthermore, the fire extinguisher lifting mechanism is provided with a guide structure (corresponding to the second guide structure) consisting of a slide case 80 that functions as a guide fixing member and a slide rail 82 that functions as a guide moving member. The slide case 80 is a sheath-shaped member that opens downwards and has a sliding space formed inside, and is a cylindrical member positioned on the upper side of the drawer housing 32. guidanceThe components 4012 is sandwiched between the components 4012 and arranged in the vertical direction on both sides. The upper part of the slide rail 82 is housed in the slide case 80, and the lower part is fixed to the fire extinguisher storage box 34, guiding the vertical movement of the fire extinguisher storage box 34. The rest of the structure is the same as in the embodiments shown in Figures 5 to 17, so the same reference numerals are used and their descriptions are omitted.

[0158] By using a fire extinguisher lifting mechanism equipped with two oil dampers 38 in this way, the fire extinguisher extraction structure is simplified, and costs can be reduced.

[0159] [p. Fire hydrant system equipped with one oil damper] Next, a fire hydrant device equipped with one oil damper in a fire extinguisher lifting mechanism with a fire extinguisher pull-out structure will be described in more detail. In this description, refer to Figure 28, which shows the fire hydrant device equipped with one oil damper in the pull-out housing state, Figure 29, which shows the fire extinguisher device equipped with one oil damper in the lowered fire extinguisher state, and Figure 30, which shows the fire hydrant device equipped with one oil damper in the pull-out housing state with the fire extinguisher lifting mechanism removed. Note that Figure 30(A) shows the front view, Figure 30(B) shows the cross-section at the cutting line ff in Figure 30(A), and Figure 30(C) shows the cross-section at the cutting line gg in Figure 30(B).

[0160] As shown in Figures 28 to 30, the fire hydrant device 10 of this embodiment is characterized by having one oil damper 38 instead of the two oil dampers 38 provided in the embodiments of Figures 25 to 27.

[0161] The fire extinguisher lifting mechanism is a drawer housing. 32 The upper end is fixed to the center of the upper and lower surfaces of the drawer housing. 32 It consists of a cylindrical guide member 4012 positioned approximately in the center, a cylindrical guide member 4010 that stands upright on the bottom surface of the fire extinguisher storage box 34, opposite the cylindrical guide member 4012 in the vertical direction, and an oil damper 38 positioned inside the cylindrical guide members 4010 and 4012.

[0162] The oil damper 38 is housed in the cylindrical guide member 4012, with its upper end on the cylinder side supported by a fixing part 44 such as a through bolt. A rod 3814 extending downward from the cylinder side passes through the cylindrical guide member 4010 and is fixed to the bottom surface of the fire extinguisher storage box 34. The lower end of the rod 3814 of the oil damper 38 is fixed at the center of gravity position where the fire extinguisher storage box 34, suspended from the oil damper 38, is balanced left and right and front and back.

[0163] Furthermore, the fire extinguisher lifting mechanism is provided with a guide structure consisting of a slide case 80 and a slide rail 82. The slide case 80 is a sheath-like member that opens downwards and has a sliding space formed inside, and is positioned vertically at two locations, front and rear, on the inside of both sides of the drawer housing 32. The upper part of the slide rail 82 is housed in the slide case 80, and the lower part is fixed to the fire extinguisher storage box 34, guiding the vertical movement of the fire extinguisher storage box 34. The rest of the structure is the same as in the embodiments shown in Figures 25 to 27, so the same reference numerals are used and their explanation is omitted.

[0164] By using a fire extinguisher lifting mechanism equipped with a single oil damper 38, the fire extinguisher extraction structure is further simplified, enabling even greater cost reductions.

[0165] [q. Fire hydrant system using a gas damper with lock control function] Next, a fire hydrant device using a gas damper with a lock control function in a fire extinguisher lifting mechanism with a fire extinguisher pull-out structure will be described in more detail. In this description, refer to Figure 31 showing a fire hydrant device with a gas damper in the fire extinguisher lifting mechanism in the pulled-out state of the pull-out housing, Figure 32 showing a fire hydrant device with a gas damper in the fire extinguisher lifting mechanism in the lowered state of the fire extinguisher storage box, Figure 33 showing the pull-out housing of a fire hydrant device with a gas damper in the fire extinguisher lifting mechanism removed, Figure 34 showing the gas damper removed, Figure 35 showing the internal structure of the gas damper in cross-section, Figure 36 showing the pull-out housing of a fire hydrant device with a gas damper in the fire extinguisher lifting mechanism removed and the fire extinguisher storage box lowered, Figure 37 showing the lock control mechanism of the gas damper, and Figure 38 showing the cross-section of the cutting line hh in Figure 37(A).

[0166] (q1. Overview of the fire extinguisher lifting mechanism) As shown in Figures 31 to 33, the fire hydrant device 10 of this embodiment is characterized by replacing one oil damper 38, which is provided in the fire extinguisher lifting mechanism of the fire hydrant device 10 shown in Figures 28 to 30, with a gas damper with a lock control function. The rest of the structure is the same as that of the fire hydrant device 10 shown in Figures 28 to 30.

[0167] More specifically, as shown in Figures 31 to 33, the cylinder 8410 of a gas damper 84 with a lock control function is housed and fixed in a cylindrical cylinder fixing part 8420 that is positioned upright in the center of the bottom of the fire extinguisher storage box 34, and the tip of a rod 8412 that extends upward from the cylinder 8410 is attached and fixed at the lower end of a rod fixing part 8422, which is fixed at the upper lower surface of the drawer housing 32. In other words, the rod 8412 is the fixed side, and the cylinder 8410 is the movable side (lifting and lowering side).

[0168] A push button 8415 is provided on the rod fixing part 8422, and when the push button 8415 is pressed, the lock of the gas damper 84 is released. As shown in Figures 31 and 33, when the user simply pulls the drawer housing 32 out to the side, the push button 8415 is not operated, so the gas damper 85 remains locked, and the fire extinguisher storage box 34 is held at a height that allows it to be inserted into and removed from the drawer opening 45 of the second housing 11b.

[0169] When the user pushes in the push button 8415, the lock on the gas damper 84 is released, and the cylinder 8410, which is the movable side, descends along with the fire extinguisher storage box 34 on which the two fire extinguishers 72 are placed, relative to the rod 8412, which is the fixed side. The gas damper 84 is released while the push button 8415 is being pressed in, and when the user releases the push button 8415, the gas damper 84 locks, stopping the descending fire extinguisher storage box 34 at that position.

[0170] (q2. Gas damper with lock control function) The gas damper 84 with a lock control function, which is installed in the fire extinguisher lifting mechanism, will be described in more detail below.

[0171] As shown in Figure 34, the gas damper 84 comprises a cylinder 8410, a rod 8412, and a push pin 8411. When the push pin 8411 is pushed in, the lock is released, and if the rod 8412 is on the fixed side, the cylinder 8410, which is on the movable side, can be lowered.

[0172] The lock control mechanism for pressing the push pin 8411 of the gas damper 84 consists of a release head 8414, a release wire 8418, and a push button unit 8416 equipped with a push button 8415. The release head 8414 is attached to the threaded portion 8413 at the tip of the rod, and the release head 8414 and the push button unit 8416 are connected by the release wire 8418.

[0173] The push button unit 8416 is equipped with a spring-loaded push button 8415. When the push button 8415 is pressed, the known wire linkage mechanism, which connects the push button unit 8416, the release wire 8418, and the release head 8414, pushes in a push pin 8411 that protrudes outward from the tip of the rod 8412 of the gas damper 84. While the push pin 8411 is pushed in, the lock of the gas damper 84 is released. As shown in Figure 34, the rod 8412 is fixed to the rod fixing part 8422 by a nut 8417 attached to the threaded portion 8413 at the tip of the rod.

[0174] The lock control mechanism of this structure is known as a wire-type release mechanism, but another lock control mechanism known as a hydraulic release mechanism may also be used. In the hydraulic release mechanism, a small piston and cylinder are provided in both the push button unit 8416 and the release head 8414, and a hydraulic hose is used instead of a release wire 8418. When the push button 8415 is pressed, the piston of the push button unit 8416 is pushed, and oil is forced out of the cylinder into the hydraulic hose. This causes the piston of the release head 8414 to move, pushing in the push pin 8411 and releasing the lock.

[0175] The advantage of the hydraulic release mechanism is that by connecting multiple release heads 8414 in parallel to a single push-button unit 8416 via hydraulic hoses, the locks of multiple gas dampers 84 with lock control functions can be released simultaneously with a single push-button 8415 operation. For this reason, the fire hydrant system 10 equipped with the two oil dampers 38 described above may be configured to replace the gas dampers 84 with a hydraulic release mechanism as the lock control mechanism.

[0176] (q3. Structure of a gas damper with lock control function) The gas damper 84 with lock control function has the structure shown in Figure 35. The gas damper 84 includes a cylinder 8410, in which a piston 8424, which functions as a first piston, is slidably mounted, and a separate piston 8426, which functions as a second piston, is slidably mounted within the cylinder following the piston 8424. The piston 8424 is integrally mounted with a rod 8412, which extends outward from the cylinder 8410.

[0177] The interior of cylinder 84 is sequentially divided into a first cylinder chamber 8428, a second cylinder chamber 8430, and a third cylinder chamber 8432 by the arrangement of piston 8424 and separate piston 8426. The first cylinder chamber 8428 and the second cylinder chamber 8430 are filled with oil, while the third cylinder chamber 8432 is filled with an inert gas, such as nitrogen gas, under a predetermined pressure.

[0178] The piston 8424 is equipped with an orifice 8434 and a valve 8436. Inside the rod 8412, a push pin 8411 is provided so as to be movable in the axial direction, with one end protruding outside the rod 8412 and the other end connected to the valve 8436. When the push pin 8411 is in the position shown in the figure, the valve 8436 is closed, and when the push pin 8411 is pushed in, the valve 8436 opens.

[0179] Valve 8436 opens and closes the flow path of the orifice 8434, which connects the first cylinder chamber 8428 and the second cylinder chamber 8430 formed in the piston 8424. That is, in the non-pushed position where the push pin 8411 is protruding outward, valve 8436 closes the flow path through the orifice 8434, locking the piston 8424, and in the pushed position of the push pin 8411, valve 8436 closes the orifice 8434 The flow path through is opened, unlocking the piston 8424 and causing the movable cylinder 8410 to descend relative to the fixed rod 8412. In this case, the descent speed corresponds to the flow resistance of the oil flowing through the orifice 8434, causing the cylinder 8410 to descend slowly.

[0180] Here, when comparing the pressure-receiving area S1 at the upper end of the cylinder 8410 in the first cylinder chamber 8428 with the pressure-receiving area S2 at the lower end of the cylinder 8410 in the third cylinder 8432, since the rod 8412 penetrates the cylinder 8410, the pressure-receiving area S1 at the upper end is smaller than the pressure-receiving area S2 at the lower end. Also, the pressures in the first cylinder chamber 8428, the second cylinder chamber 8430, and the third cylinder chamber 8432 are the pressure P of the nitrogen gas filled in the third cylinder chamber 8432. Therefore, when the rod 8412 is the fixed side, an upward force F1 determined by the pressure-receiving area S1 at the upper end and the pressure P is applied to the cylinder 8410, and a downward force F2 determined by the pressure-receiving area S2 at the lower end and the pressure P is applied. However, since F1 < F2, a downward force of (F2 - F1) is applied to the cylinder 8410.

[0181] For this reason, when the valve 8436 is opened by the pushing operation of the push pin 8411 and the lock of the piston 8424 is released, the cylinder 8410 on the moving side with respect to the rod 8412 on the fixed side receives a force of (F2 - F1) and moves downward. Further, a fire extinguisher storage box 34 on which the fire extinguisher 72 is placed is suspended at the lower end of the cylinder 8410, and the cylinder 8410 moves downward under the force of adding the weight of about 20 Kg of the fire extinguisher storage box 34 on which the fire extinguisher 72 is placed to the downward force (F2 - F1).

[0182] In this way, by providing a fire extinguisher lifting and lowering mechanism using the gas damper 84 with a locking function, as shown in FIG. 33, in a state where the user has pulled out the drawer housing 32 to the drawer position on the side of the housing, by pushing the push button 8415, the push pin 8411 is pushed in, the lock of the gas damper 84 is released, and while the push button 8415 is being pushed in, the fire extinguisher storage box 34 is gently and smoothly lowered under the force corresponding to the gas pressure and the load of the placed fire extinguisher 72, and as shown in FIG. 36, it is possible to stop the fire extinguisher storage box 34 at a low position where the lower end of the lower door 1630 abuts against the road surface of the supervisor passage 35.

[0183] Furthermore, if the push button 8415 is released while the fire extinguisher storage box 34 is descending, the gas damper 84 is locked, allowing the fire extinguisher storage box 34 to stop in that position. After the fire extinguisher 72 has been removed, if the road administrator wants to return the lowered fire extinguisher storage box 34 to its storage position in order to place a new fire extinguisher, they will push the push button 8415 to release the lock on the gas damper 84, pull up the fire extinguisher storage box 34 to its original position, and then release the push button 8415 to lock it.

[0184] (q4. Automatic lock control mechanism linked to the operation of pulling out the fire extinguisher) Next, the automatic lock control mechanism of the gas damper, which is linked to the fire extinguisher extension operation, will be explained in more detail. In this explanation, refer to Figure 37, which shows the automatic lock control mechanism of the gas damper, and Figure 38, which shows the cross-section of the cutting line hh in Figure 37(A). Note that Figure 37(A) shows the automatic lock control mechanism in the fire extinguisher stored position, and Figure 37(B) shows the automatic lock control mechanism in the fire extinguisher extended position.

[0185] The automatic lock control mechanism of the gas damper 84 with a lock control function is a mechanism that automatically releases the lock of the gas damper 84 in conjunction with the movement of the drawer housing 32 to the lateral external drawer position, thereby lowering the fire extinguisher storage box 34. Its shape and structure are arbitrary, but for example, as shown in Figures 37 and 38, the push button of the push button unit 90 used to unlock the gas damper 84 is a cam button 92 with a groove that acts as a cam follower, and is supported upward by a support member 9010 at the right end of the upper plate of the drawer housing 32. A cam plate 94 is positioned in the drawer direction on the upper lower surface of the fire hydrant storage section 50c of the second housing 11b, corresponding to the cam button 92.

[0186] The cam plate 94 has a push-release section 9410 on the right side, which is the depth side, and a push-in section 9414 on the left side, which is the pull-out side, following the inclined section 9412. The push-release section 9410 has a smaller plate width in the height direction, and the push-in section 9414 has a larger plate width in the height direction, and the inclined section 9412 connects them.

[0187] The lower end of the cam plate 94 is fitted into the groove of the cam button 92, and the amount of pressure applied to the cam button 92 changes in accordance with the movement of the cam button 92 accompanying the pulling out operation of the drawer housing 32. That is, as shown in Figure 37(A), the drawer housing 32 extinguishes the fire vessel When stored in storage compartment 50c, the cam button 92 is located on the cam plate 94 with a smaller plate width. Push It is located in the release section 9410 and is in the pressed-release state. Therefore, the release head 8414, which is connected to the push button unit 90 via the release wire 8418, gas The push pin 8411 (see Figure 34), which protrudes from the tip of the rod 8412 provided on the damper 84, is released from being pushed in. gas Damper 84 is locked.

[0188] In contrast, as shown in Figure 37(B), the drawer housing 32 extinguishes the fire. vessel When pulled out laterally from the storage section 50c, the cam button 92 moves to the wider push-in section 9414 of the cam plate 94 and is pushed in. As a result, the release head 8414, which is connected to the push button unit 90 via the release wire 8418, operates to push in the push pin 8411 (see Figure 34) protruding from the tip of the rod 8412, thereby maintaining the pushed-in state. gas The damper 84 is released, automatically lowering the fire extinguisher storage box 34.

[0189] Furthermore, after the fire extinguisher storage box 34 has been lowered and the fire extinguisher has been removed, the operation to return the fire extinguisher storage box 34 to its storage position for placing a new fire extinguisher is performed by manually lifting it up.

[0190] According to this automatic locking control mechanism, when you pull out the fire extinguisher... gas By releasing the damper 84, the fire extinguisher storage box 34 can be lowered automatically, eliminating the need for the user to perform an unlocking operation. Although the automatic lock control mechanism in Figure 37 uses a wire-type release mechanism as an example, a hydraulic release mechanism may also be used.

[0191] [r. Embodiment of a fire extinguisher box] The structure of a fire extinguisher box equipped with a side fire extinguisher door will be explained in more detail. In this explanation, refer to Figure 39, which shows a fire extinguisher box equipped with a fire extinguisher pull-out structure with the fire extinguisher stored, and Figure 40, which shows a fire extinguisher box equipped with a fire extinguisher pull-out structure with the fire extinguisher pulled out and with the fire extinguisher lowered. Figure 40(A) shows the fire extinguisher pulled out, and Figure 40(B) shows the fire extinguisher lowered.

[0192] As shown in Figures 39 and 40, the fire extinguisher box 200 of this embodiment corresponds to the structure obtained by separating the second housing 11b of the fire hydrant device 10 shown in Figures 1 to 17 and closing the right side. The housing 1100 of the fire extinguisher box 200 has a fire extinguisher pull-out structure similar to that of the fire hydrant device 10, so the same reference numerals are used and their explanation is omitted. The fire hydrant device 10 shown in Figures 18 to 38 also includes the case where the second housing 11b is separated and the right side is closed, thereby creating the fire extinguisher box 200.

[0193] Under normal circumstances, as shown in Figure 39, the side fire extinguisher door 16 of the fire extinguisher box 200 is locked in a position that closes the drawer opening on the side of the housing, so that the drawer housing on which the two fire extinguishers are placed is stored in the fire extinguisher storage section inside the housing 1100.

[0194] When a user wants to use a fire extinguisher, the lock is released by pulling the door handle 1610 of the side fire extinguisher door 16 toward the user. As shown in Figure 40(A), the drawer housing 32 on which the fire extinguisher 72 is placed is pulled out to the side from the drawer opening 45. Subsequently, as shown in Figure 40(B), the fire extinguisher storage box 72 is lowered by the fire extinguisher lifting mechanism equipped with an oil damper, allowing the user to easily take out the fire extinguisher 72 from the lowered fire extinguisher storage box 34 and begin firefighting.

[0195] [s. Modified examples of the present invention] A modification example of the fire hydrant device according to the present invention will be described. The fire hydrant device or the fire extinguisher box serving as the fire extinguisher storage device of the present invention includes the following modifications in addition to the above-described embodiment.

[0196] (Wall-mounted fire hydrant device) The above embodiment takes, as an example, a stationary fire hydrant device in which a housing is fixedly attached to the upper part of a pedestal installed on the road surface of the inspector passage in proximity to or in contact with the tunnel wall surface side. However, the present invention is not limited thereto. Similarly, for a wall-mounted fire hydrant device in which a housing is fixedly attached to the front part on the road side of a pedestal installed on the tunnel wall surface above the road surface of the inspector passage, a side door is provided on the side surface of the housing, and work inside the housing can be performed from the outside of the side by opening the side door.

[0197] (When the tunnel wall surface has a non-circular cross-section) The tunnel cross-sectional shape in the above embodiment is circular. However, when the tunnel cross-section is non-circular, for example, a three-centered circle or the like, the present invention can be applied by setting the horizontal line at the position where the horizontal width of the tunnel cross-sectional shape is the widest as the tunnel center line SL1 in the above description.

[0198] (Structure of the fire hydrant device corresponding to thinning) In the fire hydrant device in the above embodiment, in response to the thinning of the fire hydrant device, the lateral widths of the first housing and the second housing are widened to secure the internal volume reduced by the thinning. However, the vertical widths of the first housing and the second housing may be widened to secure the internal volume reduced by the thinning.

[0199] (First housing drawing mechanism) The first housing drawing mechanism in the above embodiment is a drawing mechanism using two guide rails in which the drawing-side guide rail of the drawing housing is slidably fitted into the housing-side guide rail of the fire hydrant storage section. However, a housing drawing mechanism using three guide rails in which an intermediate rail is arranged between the housing-side guide rail and the drawing-side guide rail may also be used.

[0200] (Second housing extraction mechanism) In the above embodiment, the second housing pull-out mechanism uses guide rollers, but similar to the first housing pull-out mechanism, it may also be a guide rail structure in which the pull-out side guide rail of the pull-out housing is slidably fitted into the housing side guide rail of the fire hydrant storage section.

[0201] (Fire extinguisher storage device) The above embodiments used a fire hydrant system and a fire extinguisher box as examples of fire extinguisher storage devices, but are not limited to these. Any device in which a fire extinguisher is stored or placed inside a housing with a storage door is included. Furthermore, the fire extinguisher storage device is not limited to tunnels, but may be installed in various buildings, for example. In addition, the fire extinguisher storage device is not limited to those installed on walls, but may also be installed in relatively high places other than walls, as long as it is suitable for the purpose of the present invention.

[0202] (others) Furthermore, the present invention includes appropriate modifications that do not impair its purpose and advantages, and is not limited by the numerical values ​​shown in the above embodiments. [Explanation of Symbols]

[0203] 10: Fire hydrant system 11a: First enclosure 11b: Second cabinet 12: Forward-sloping door 13a, 13b: Decorative frame 14: Maintenance Door 15: Road 16: Side fire extinguisher door 1610: Door handle 1612: Device name display 1614: Operation explanation 1620: Upper door 1630: Lower door 17: Tunnel wall 18: Electric Door 19: Peephole 20: Auxiliary door 22: Red indicator light 24: Transmitter 25: Response lamp 26a, 26b: Terminal box 30: Stand 32: Lead-out housing 3210: Main lead-out housing 3212: Upper surface of the housing 3214: Rear surface of the housing 3216: Right side surface of the housing 3218: Handle mounting opening 34: Fire extinguisher storage box 3410: Fire extinguisher holder 3412: Front plate 3414: Spring hinge 35: Supervisor passage 36: Lead-out side guide rail 3612: Stopper piece 3614: Roller 37: Support member 38: Oil damper 3810: Cylinder 3812: Piston 3814: Rod 3816: Orifice 3818: Check valve 40, 4010, 4012: Cylindrical guide member 42: Housing side guide rail 4212: Roller 4214: Stopper member 44, 46: Fixing part 45: Lead-out opening 48: Second housing lead-out mechanism 4810: Guide roller 4812: Roller base 49: Water supply pipe 50a: Valve storage part 50b: Hose storage part 50c: Fire extinguisher storage part 52: Water tap 54: Fire hydrant valve 56: Automatic pressure regulating valve 58: Fire hydrant valve opening / closing lever 60: Fire hose [[ID=8​​​​ 68: Nozzle 70: Nozzle holder 72: Fire extinguisher 7210: Opening lever 7212: Fixed lever 80: Slide case 82: Slide rail 84: Gas damper 8410: Cylinder 8411: Push pin 8412: Rod 8413: Threaded part 8414: Release head 8415: Push button 8416: Push Button Unit 8417: Nut 8418: Release wire 8420: Cylinder fixing part 8422: Rod fixing part 8424: Piston 8426: Separate Piston 8428: First Cylinder Chamber 8430: Second Cylinder Chamber 8432: Third Cylinder Chamber 8434: Orifice 8436: Valve 90: Push Button Unit 9010: Support member 92: Cam button 94: Cam plate 9410: Push-in release section 9412: Inclined part 9414: Push-in section 200: Fire extinguisher box 1100: Cabinet

Claims

1. A fire extinguisher storage device in which the housing is installed at a predetermined height above the road surface of a monitoring walkway provided along the wall of a tunnel, in close proximity to or in contact with the tunnel wall, The fire extinguisher, which is placed vertically in the fire extinguisher storage compartment within the housing, can be pulled out from the side of the housing, and the fire extinguisher pull-out structure is provided to lower the bottom of the pulled-out fire extinguisher so that it is positioned below the lowest part of the fire extinguisher storage compartment. The aforementioned fire extinguisher pull-out structure is, A pull-out opening formed on the side of the housing, A side fire extinguisher door is positioned on the side of the drawer opening, and at least the front and bottom are open, and the drawer housing is positioned to be easily inserted into and removed from the fire extinguisher storage section. A housing pull-out mechanism that supports the pull-out housing so that it can move in the pull-out direction relative to the fire extinguisher storage section, A fire extinguisher storage stand for which the aforementioned fire extinguisher is placed vertically and can be easily removed, A fire extinguisher lifting mechanism supports the fire extinguisher storage stand so that it can move vertically on the bottom side of the drawer housing, Equipped with, The aforementioned housing pull-out mechanism is characterized in that, when a user pulls the pull-out housing out from the side of the housing through the pull-out opening, the fire extinguisher lifting mechanism lowers the fire extinguisher storage platform so that the bottom of the fire extinguisher is positioned below the lowest part of the fire extinguisher storage section.

2. In the fire extinguisher storage device according to claim 1, The aforementioned housing pull-out mechanism is, A first housing pull-out mechanism is positioned on the upper side of the fire extinguisher storage section and supports the pull-out housing so that it can move in the pull-out direction, A second housing pull-out mechanism is provided, which is located at the bottom of the fire extinguisher storage section and supports the fire extinguisher storage base, which moves in conjunction with the movement of the pull-out housing, so as to be movable in the pull-out direction. A fire extinguisher storage device characterized by being equipped with the following features.

3. In the fire extinguisher storage device according to claim 1, The fire extinguisher lifting mechanism lowers the fire extinguisher storage stand from the bottom side of the drawer housing to a predetermined height above the road surface of the supervisor's passage, The fire extinguisher storage device is characterized in that the predetermined height is such that, when the fire extinguisher storage stand is lowered, the user's feet can fit between the bottom of the fire extinguisher storage stand and the road surface of the supervisor's passage.

4. In the fire extinguisher storage device according to claim 1, The aforementioned fire extinguisher lifting mechanism is A damper device is provided, one end of which is fixed to the upper lower surface of the drawer housing and the other end of which is fixed to the fire extinguisher storage base, and which lowers the fire extinguisher storage base by receiving the weight of the placed fire extinguisher when the drawer housing is pulled out from the side of the housing, A guide structure that guides the movement of the fire extinguisher storage stand in the vertical direction by the damper device, A fire extinguisher storage device characterized by being equipped with the following features.

5. In the fire extinguisher storage device according to claim 4, The fire extinguisher lifting mechanism is a fire extinguisher storage device characterized by comprising one or more damper devices.

6. In the fire extinguisher storage device according to claim 4 or 5, The damper device, A cylinder with one end fixed to the drawer housing side, A piston is slidably mounted within the cylinder, A rod extending outward from the piston, with one end in the direction of extension fixed to the fire extinguisher storage base side, The oil filled in the cylinder, An orifice provided on the piston generates flow resistance due to the flow of the oil accompanying the movement of the piston, A check valve provided on the piston closes when the piston moves in one direction and opens when the piston moves in the other direction, It is an oil damper equipped with, The fire extinguisher storage device is characterized in that the oil damper lowers the fire extinguisher storage base at a predetermined speed when the drawer housing moves to a drawer position in the lateral direction of the housing.

7. In the fire extinguisher storage device according to claim 4 or 5, The damper device, A cylinder with one end fixed to the fire extinguisher storage stand, A first piston is slidably mounted within the cylinder, A second piston is provided to slide freely within the cylinder following the first piston, A rod extending outward from the first piston, with one end in the direction of extension fixed to the drawer housing side, The oil filled in the first cylinder chamber on one side of the first piston and the second cylinder chamber between the first piston and the second piston, An inert gas is filled under pressure into the third cylinder chamber on one side of the second piston, An orifice provided on the first piston causes the oil to flow between the first cylinder chamber and the second cylinder chamber as the first piston moves, generating a predetermined flow resistance. A valve that opens and closes the flow path through the orifice, A push pin is provided to be movable inside the rod, with one end protruding outside the rod and the other end connected to the valve, and which opens and closes the valve as it moves in the axial direction. It is a gas damper equipped with, The fire extinguisher storage device is characterized in that the gas damper locks the relative movement of the cylinder and the rod by closing the flow path through the orifice with the valve when the push pin is not pushed in, and releases the lock on the relative movement of the cylinder and the rod by opening the flow path through the orifice with the valve when the push pin is pushed in.

8. In the fire extinguisher storage device according to claim 7, The fire extinguisher storage device is characterized in that the gas damper releases the lock on the relative movement of the cylinder and the rod based on the pushing operation of the push pin or the pushing operation accompanying the movement of the drawer housing to the drawer position in the lateral direction of the housing, thereby lowering the fire extinguisher storage stand at a predetermined speed.

9. In the fire extinguisher storage device according to claim 4, The aforementioned guide structure is The drawer housing is provided with a cylindrical guide member, one end of which is fixed to the upper lower surface and the other end of which is positioned to abut against the fire extinguisher storage stand at a predetermined drawer height. The fire extinguisher storage device is characterized in that the cylindrical guide member has the damper device arranged inside it and supports the upper side of the damper device.

10. In the fire extinguisher storage device according to claim 4, The aforementioned guide structure is A sheath-shaped guide fixing member arranged vertically within the aforementioned drawer housing, A guide moving member is positioned on the fire extinguisher storage stand side and is slidably inserted into the guide fixing member, A fire extinguisher storage device characterized by being equipped with the following features.

11. In the fire extinguisher storage device according to claim 1, The aforementioned side fire extinguisher door is divided into an upper door on which the main body of the drawer housing is located, and a lower door on which the fire extinguisher storage stand is located. The fire extinguisher storage device is characterized in that the fire extinguisher storage stand is supported so as to be movable in the vertical direction relative to the main body side of the drawer housing by the fire extinguisher lifting mechanism.

12. In the fire extinguisher storage device according to claim 1, The aforementioned fire extinguisher storage stand is a fire extinguisher storage box with an opening at the top. The fire extinguisher storage device is characterized in that the fire extinguisher storage box is equipped with a front plate pivotally supported on the front edge of the bottom plate so as to rotate outward when the fire extinguisher is removed.

Images