JP7583115B2 - Fire extinguisher box - Google Patents

Description

The present invention relates to a fire extinguisher box that stores a fire extinguisher so that it can be freely removed by opening the fire extinguisher door.

Traditionally, emergency equipment has been installed in tunnels on expressways and motorways to protect people and vehicles from fires that may occur inside the tunnel.

Such emergency equipment includes fire detectors, manual reporting devices, and emergency telephones for monitoring and reporting fires, as well as fire hydrants and fire extinguisher boxes for extinguishing fires and preventing the spread of fires, and water spray equipment that sprays fire-extinguishing water from water spray heads to protect the tunnel structure from fires. The emergency equipment is monitored and controlled by connecting it to a transmission line from a disaster prevention receiving panel installed in the monitoring center.

For example, fire hydrant devices are installed at 50-meter intervals along the side walls facing the guard passages inside the tunnel, and the hoses with nozzles at the ends and valves are housed in a housing with a fire hydrant door that can be opened freely.

The fire extinguisher boxes are either installed together with the fire hydrant device or stand alone, and are installed, for example, at intervals of 50 meters along the side wall facing the guard passageway installed inside the tunnel.

The supervisor's passage is set up as a side wall passage about one meter higher than the road surface, allowing supervisors to safely inspect various equipment installed inside the tunnel, including fire extinguisher boxes, without interfering with vehicle traffic inside the tunnel.

In the event of a vehicle accident involving a fire, the driver or other user of the involved vehicle can open the fire extinguisher door of the fire extinguisher box, remove the fire extinguisher, and carry out fire-extinguishing operations.

JP 2008-055024 A JP 2009-285126 A JP 2014-083344 A JP 2017-209145 A JP 2017-205251 A JP 2017-217356 A JP 2003-190315 A Japanese Utility Model Application Publication No. 59-172453 Registered Utility Model No. 3176294 Japanese Patent Application Publication No. 08-117354 Japanese Utility Model Application Publication No. 07-039856

However, in the case of conventional fire extinguisher boxes installed in such tunnels, they were installed along the side wall of the tunnel facing the guard passage, so in the event of a vehicle accident, users had to reach out from the road surface to the fire extinguisher box installed on the tunnel side wall of the guard passage, open the fire extinguisher door, take out the fire extinguisher, and carry out the fire extinguisher operation. However, because the fire extinguisher box was installed at a high position away from the road surface, some people could not reach it and had to climb up to the guard passage to take out the fire extinguisher.

To solve this problem, the fire extinguisher box could be embedded inside the guard passageway and a fire extinguisher door could be installed on the side wall of the guard passageway facing the road. However, if a vehicle fire occurs and the vehicle is stopped in front of the fire extinguisher door, the stopped vehicle could get in the way, making it impossible to open the fire extinguisher door to remove it, or taking out the extinguisher could be difficult.

In addition, if the fire extinguisher door is installed on the side wall of the guard passage facing the road, the fire hydrant door must be opened to inspect the fire extinguisher box or replace the fire extinguisher, and this requires work to be done from the road side, which creates the inconvenience of having to carry out inspection work or fire extinguisher replacement work while restricting vehicle traffic inside the tunnel.

The present invention aims to provide a fire extinguisher box that allows the fire extinguisher to be removed simply and easily from the front and above, and also allows inspection and replacement of the fire extinguisher to be performed simply and easily.

(Fire extinguisher box)
The present invention relates to a fire extinguisher box,
A series of openings extending from the top surface to the upper front surface side when installed;
A series of doors that can be opened and closed;
A lower front side that is always closed and is below the series of openings;
a fire extinguisher holder that can be rotated forward by a shaft provided on the front of the bottom surface in the installed state;
an angle setting member that restricts the rotation of the fire extinguisher holder so that the stored state of the fire extinguisher stored in the fire extinguisher holder can be tilted from an angle at which the entirety of the fire extinguisher is not exposed from the series of openings to a predetermined angle at which a part of the head side of the fire extinguisher is exposed forward from the front upper side of the series of openings;
The present invention is characterized by comprising :

The specified angle is an angle at which the tilted fire extinguisher does not come into contact with the upper end of the lower front side, and it limits the amount that part of the head side of the fire extinguisher protrudes forward from the lower front side.

When the series of openings is opened, the fire extinguisher can be removed to the outside from the top or front side of the series of openings.

(Basic Effects)
The present invention relates to a fire extinguisher box, which comprises a housing in which a fire extinguisher is housed so as to be freely removable;
The housing is provided with a front door that is freely openable and closable at the front opening thereof, and an upper door that is freely openable and closable at the upper opening thereof, so that the opening becomes wider by opening the front sliding door and the upper door, making it easier to remove the fire extinguisher.

(Effect of the front sliding door and the front opening at the top)
In addition, the front door is a front sliding door that is provided on the front opening of the housing so as to be freely slid open and closed, and the upper door is provided on the upper opening of the housing so as to be freely opened forward. Therefore, since the washbasin door is a front sliding door that slides open and closed, the front sliding door does not jump out forward even when opened, and the fire extinguisher can be simply and easily removed from the front of the fire extinguisher box without being obstructed by the door, making it possible to perform fire extinguishing work quickly and reliably.

In addition, because the upper door opens from the front, just like the front sliding door, the fire extinguisher can be easily and simply removed without being hindered by the open upper door, allowing for quick and reliable extinguishing operations.

(Effect of the operating mechanism)
In addition, the upper door is equipped with an operating mechanism which holds the front sliding door in a closed state by sliding it upward when the upper door is closed, and which releases the front sliding door by performing a specified opening operation to slide it downward to open it.Therefore, in the event of a fire, a user can open the upper door upward from the front by operating the lever of the operating mechanism of the upper door, etc., which releases the front sliding door from its closed state, and the front sliding door will slide downward under its own weight and open automatically.Even though there are two doors, the door opening operation is simple and it is possible to quickly and reliably extinguish the fire by removing a fire extinguisher.

(Effect of fire extinguisher holding structure)
In addition, the fire extinguisher box is further provided with a fire extinguisher holder that is provided within the housing and that stores the fire extinguisher in a removable manner, and that can be rotated diagonally forward so that the fire extinguisher can be removed from the front opening when the front sliding door is open, and an angle setting member that sets the rotation angle of the fire extinguisher holder diagonally forward to a predetermined angle at which the upper part of the rotated fire extinguisher is exposed further forward than the front of the open front sliding door, and a predetermined angle at which the lever part of the rotated fire extinguisher is positioned at the forefront.Therefore, when the fire extinguisher is removed from the front opening on the road surface side with the front sliding door open, the fire extinguisher holder can be rotated so that the removal outlet is diagonally forward, allowing the fire extinguisher to be smoothly removed from within the fire extinguisher holder.

The angle setting member also sets the angle at which the fire extinguisher holder rotates diagonally forward to a specified angle at which the rotated fire extinguisher will not come into contact with the open sliding door, thereby preventing the top of the fire extinguisher stored in the fire extinguisher holder from hitting the opening of the housing, etc.

(Effects when installed in tunnel guard passages)
In addition, the housing is embedded in the lower part of the guard passage provided along the tunnel side wall, the front sliding door is arranged to be located on the side wall surface of the guard passage facing the road, and the upper door is arranged to be located on the passage surface of the guard passage. Therefore, for example, if an operating mechanism is provided which holds the front sliding door in a closed state by sliding it upward when the upper door is closed, and which releases the front sliding door by performing a specified opening operation to slide it downward to open it, in the event of a vehicle accident involving a fire, a user such as the driver of the accident vehicle can open the upper door upward from the road surface by operating the lever of the operating mechanism of the upper door, etc., which will release the hold of the front sliding door in a closed state, and the front sliding door will slide downward and open under its own weight, allowing the driver to take out the fire extinguisher from the road side to extinguish the fire. Compared to a conventional fire extinguisher box installed on the tunnel side wall above the guard passage, this makes it possible to simply and easily take out the fire extinguisher without being obstructed by the guard passage, and to quickly and reliably carry out fire extinguishing work.

In addition, if a vehicle accident involving a fire occurs and the vehicle stops in front of the fire extinguisher box, making it impossible to remove the extinguisher from the door on the road side, the upper door installed in the supervisor's passage can be released and opened upwards by operating the lever of the operating mechanism, etc., making it possible to reliably remove the fire extinguisher from the supervisor's passage and carry out fire extinguishing work.

In addition, inspection of the fire extinguisher box and replacement of the fire extinguisher can be performed without restricting vehicle traffic through the tunnel by releasing the upper door located in the guard passage and opening it upwards by operating a lever on the operating mechanism, etc.

(Effects of Arrangement Adjacent to or Integrated with Fire Hydrant Equipment)
In addition, since the housing is provided on one or both sides of the fire hydrant device embedded inside the guard passage, or is provided integrally on one or both sides of the fire hydrant device, it is possible to extinguish the fire by discharging water using the fire hydrant device after the initial fire extinguishing with the fire extinguisher. Also, since the fire extinguisher boxes containing fire extinguishers are provided on both sides of the fire hydrant device, two users can individually take out the fire extinguishers from the fire extinguisher boxes provided on both sides of the fire hydrant device and carry out the fire extinguishing work, making it possible to efficiently carry out the initial fire extinguishing using the fire extinguisher.

An explanatory diagram showing emergency equipment for tunnels, including fire extinguisher boxes installed inside a shield tunnel. An explanatory diagram showing a fire extinguisher box containing a fire extinguisher, together with a fire hydrant storage box containing a hose, from the front, top, and side. 3 is an explanatory diagram showing the fire extinguisher box of FIG. 2 from the front, and from the front and side with the door open; FIG. 3 is a plan view of the fire extinguisher box of FIG. FIG. 3 is an explanatory diagram showing a cross section of the fire extinguisher box of FIG. 2 taken out from the side and a partial cross section of the door sliding structure taken from the front. FIG. 3 is a cross-sectional view of the state in which the door of the fire extinguisher box in FIG. 2 is opened and the fire extinguisher is removed. An explanatory diagram showing the internal structure of the fire hydrant facility in Figure 2 in cross section as seen from the road side. FIG. 8 is an explanatory diagram showing a cross section of the fire hydrant equipment of FIG. 7 in which the hose storage section is raised by the lifting mechanism and exposed above the guard passage, as viewed from the road surface side. FIG. 1 is an explanatory diagram showing an embodiment of a fire extinguisher box with a front revolving door from the front, the front with the door open, and a side view. FIG. 10 is an explanatory diagram showing the fire extinguisher box of FIG. 9 in plan view and in plan view with the upper door open; FIG. 10 is a plan view showing the outline of the rotation structure of the front revolving door in the fire extinguisher box of FIG.

[Outline of tunnel emergency equipment]
Fig. 1 is an explanatory diagram showing a tunnel emergency equipment including a fire extinguisher box installed in a tunnel for expressways. As shown in Fig. 1, the inside of a tunnel 10 constructed by the shield method is covered with a cylindrical tunnel wall 12, and a road 15 is provided by dividing it with a deck 18. In this example, the road 15 has two lanes in one direction.

A guard passage 14 is provided along the tunnel wall 12 on the left side of the road 15 separated by the deck 18, and the internal space below the guard passage 14 is used as a duct 22 in which electrical conduits, etc. are laid.

The underside of the deck 18 on which the road 15 is formed is divided into multiple sections laterally across the tunnel. For example, the section located below the guard passage 14 is used as a maintenance passage 20, which is also used as an emergency evacuation passage in the event of a fire inside the tunnel. A water supply main 24 is laid in the maintenance passage 20.

Fire hydrant facilities 16 are installed every 50 meters along the length of the tunnel 10, and the fire hydrant facilities 16 are installed separately in a fire hydrant storage box 26 that stores the hose, and in a control mechanism storage section 130.

The fire hydrant storage box 26 is located in a fire hydrant recess that is carved into a box shape extending from the road surface of the guard passage 14 to the wall on the road 15 side. The control mechanism storage section 130 is located in the management passage 20 below the fire hydrant storage box 26, and a branch pipe branching off from the main water supply pipe 24 is led into the control mechanism storage section 130, and a water supply pipe that supplies fire water to the fire hydrant storage box 26 is also installed.

The fire hydrant storage box 26 of the fire hydrant equipment 16 is provided with a hose storage section that stores a hose with a nozzle and a lifting mechanism for the hose storage section. When a specified lifting operation is performed, the lifting mechanism raises the hose storage section to an exposed position above the monitor passage 14, making it exposed, and allowing firefighting work to be performed by pulling out the hose with the nozzle.

Fire extinguisher boxes 30 are installed on both sides of the fire hydrant storage box 26, and fire extinguishers are stored inside so that they can be easily removed. Like the fire hydrant storage box 26, the fire extinguisher boxes 30 are located in a box-shaped fire hydrant recessed section carved out from the road surface of the guard passage 14 to the wall on the road 15 side.

The fire extinguisher box 30 has a front sliding door on the road 15 side and an upper door on the road surface side of the guard passage 14; when the upper door is opened, the front sliding door is released and slides downward and opens, allowing the fire extinguisher to be removed from the road 15 side or the guard passage 14 side.

[Fire hydrant facilities]
FIG. 2 is an explanatory diagram showing a fire extinguisher box housing a fire extinguisher together with a fire hydrant storage box from the front, top and side.

(Fire extinguisher box overview)
As shown in FIG. 2, the fire extinguisher boxes 30 are embedded in the internal space below the floor of the monitor passage 14 together with the fire extinguisher storage boxes 26 of the fire hydrant equipment 16 on both sides thereof, and each fire extinguisher box 30 stores, for example, one fire extinguisher.

The fire extinguisher box 30 has a front sliding door 40 on the front side facing the road, and an upper door 42 on the road surface side of the guard passage 14. An operating mechanism 44 on the upper door 42 keeps the front sliding door 40 in the closed position slid upwards when the upper door 42 is closed.

When removing a fire extinguisher from the fire extinguisher box 30, the lever of the operating mechanism 44 of the upper door 42 is operated, which releases the latch of the front sliding door 40 by the operating mechanism 44, and the front sliding door 40 slides downward under its own weight to open the front opening, allowing the fire extinguisher to be removed from the road 15 side or the guard passage 14 side.

(Overview of fire hydrant storage box)
As shown in Figure 2, the fire hydrant storage box 26 of the fire hydrant equipment 16 is embedded in the internal space below the floor of the monitor passage 14. Inside the fire hydrant storage box 26, there is disposed a hose storage section 102 that is raised and lowered by a hydraulic cylinder 122 of a lifting mechanism using a pantograph mechanism.

The fire hydrant storage box 26 has an inspection door 28 fixed to the opening on the front of the housing 34 by multiple bolts, and can be easily attached and detached by removing the bolts.

In addition, a fire hydrant entrance 100 is formed in the upper part of the fire hydrant storage box 26 shown in FIG. 2 (B), which is the road surface of the monitor passage 14. A hose storage unit is arranged below the fire hydrant entrance 100 so that it can be raised and lowered freely, and the road surface plate 106 of the hose storage unit is positioned to close the fire hydrant entrance 100.

A reporting device panel is provided corresponding to the fire hydrant storage box 26, and the reporting device panel is provided with a red indicator light, a transmitter, and a response lamp, but these are not shown in the figure. The reporting device panel is also provided with an up switch and a down switch for raising and lowering the hose storage section provided in the fire hydrant storage box 26, but these are not shown in the figure.

[Fire extinguisher box with front sliding door]
Figure 3 is an explanatory diagram showing the front of the fire extinguisher box in Figure 2, and the front and side views with the door open; Figure 4 is an explanatory diagram showing a plan view of the fire extinguisher box in Figure 2; Figure 5 is an explanatory diagram showing a cross-section of the fire extinguisher box in Figure 2 as seen from the side and a partial cross-section of the door sliding structure as seen from the front; and Figure 6 is an explanatory diagram showing a cross-section of the door of the fire extinguisher box in Figure 2 when the door is opened and a fire extinguisher is removed.

(External structure of fire extinguisher box)
As shown in Figures 3 and 4, the fire extinguisher box 30 stores a fire extinguisher 32 inside a housing 34 so that the fire extinguisher 32 can be freely removed. The housing 34 has a front opening 36 on the road side and an upper opening 38 on the monitor passage side.

A front sliding door 40 is provided at the front opening 36 of the housing 34 so that it can be opened and closed by sliding vertically. In addition, an upper door 42 is provided at the top opening 38 of the housing 34 so that it can be opened and closed by rotating upwards using a hinge 46, i.e., can be opened from the front. The upper door 42 is located on the road surface of the guard passage, so it is made strong enough to withstand the risk of a person passing by stepping on it.

An operating mechanism 44 equipped with a lever 44a is provided on the front side of the upper door 42, and a latch 48 protruding forward from the inside of the operating mechanism 44 is pulled upward and engaged with a latch groove in the upper frame of the front sliding door, which is held in the closed position, thereby holding the front sliding door 40 in the closed position.

When removing the fire extinguisher 32 from the fire extinguisher box 30, when the lever 44a on the operating mechanism 44 of the upper door 42 is pulled toward the user in the state shown in FIG. 3(A), the latch 48 is retracted and the latch of the front sliding door 40 is released. The front sliding door 40 then slides downward under its own weight, and the front opening 36 is opened as shown in FIG. 3(B), allowing the fire extinguisher 32 visible in the front opening 36 to be removed.

When removing the fire extinguisher 32 from the guard passage, as shown in FIG. 3(C), the upper door 42a is opened upward to open the upper opening 38, and since the front sliding door 40 is also open at this time, the fire extinguisher 32 is removed through the open space of the upper opening 38 and the front opening 36.

(Internal structure of a fire extinguisher box)
As shown in Fig. 5(A), a cylindrical fire extinguisher holder 50 with an opening at the top is disposed inside the housing 34 of the fire extinguisher box 30. The fire extinguisher holder 50 is provided so as to be rotatable forward by a shaft 52 provided in front of a bottom plate 51, and an angle setting member 54 is fixed to the top of the shaft 52 of the fire extinguisher holder 50.

The angle setting member 54 has a right-angled triangular shape when viewed from the side, with its hypotenuse fixed to the outside of the fire extinguisher holder 50, and the apex angle θ is the set rotation angle when the fire extinguisher holder 50 is rotated forward.

As shown in FIG. 6, when the upper door 42 and front sliding door 40 are opened and the fire extinguisher 32 is removed from the front side facing the road, the fire extinguisher holder 50 housing the fire extinguisher 32 is rotated forward around the axis 52. When the fire extinguisher holder 50 rotates by the set rotation angle θ, the side of the angle setting member 54 corresponding to the height of the right triangle abuts against the inside of the lower front part of the housing 34, stopping the rotation and restricting the rotation of the fire extinguisher holder 50 to the set rotation angle θ.

By rotating the fire extinguisher holder 50 in this manner, the top of the fire extinguisher 32 is positioned diagonally upward from the open space of the top opening 38 and front opening 36, allowing the fire extinguisher 32 to be smoothly removed from the road side.

In addition, the angle setting member 54 regulates the rotation angle of the fire extinguisher holder 50, preventing the top of the fire extinguisher 32 from colliding with and damaging the downward-opening front sliding door 40.

(Front sliding door opening and closing structure)
As shown in FIG. 5B, the front sliding door 40 provided at the front opening 36 of the housing 34 has semicircular sliding protrusions 40a integrally formed at the lower ends on both sides and in the center, and correspondingly, sliding grooves 41 are formed on both sides of the front opening 36, and the front sliding door 40 is attached so as to be freely slidable in the vertical direction along the sliding grooves 41.

In addition, the tip of a latch 48 protruding from an operating mechanism 44 provided on the upper door 42 is fitted into a latch hole formed on the inside of the upper door frame 40b of the front sliding door 40 when the door is closed, thereby holding the front sliding door 40 in the closed position.

(Fire extinguisher protective cover)
As shown in FIG. 5A, a protective cover 56 is detachably attached to the upper part of the fire extinguisher 32 housed in the fire extinguisher box 30.

An operating lever 58 and a fixed lever 59 are provided on the top of the fire extinguisher 32. The fixed lever 59 allows the fire extinguisher 32 to be carried, and the operating lever 58 can be grasped and pushed down to release extinguishing agent from the hose.

A safety pin with a ring-shaped handle 60 is attached to the operating lever 58, and when using the fire hydrant 32, the extinguishing agent can be released by pushing down the operating lever 58 by inserting a finger into the ring-shaped handle 60 and pulling out the safety pin.

When the fire extinguisher 32 fitted with a safety pin with a ring-shaped handle 60 is stored in the fire extinguisher box 30 in this way, as shown in Figure 6, when the door is open and the fire extinguisher 32 is removed from the top, it is assumed that the person will mistakenly try to remove the extinguisher by hooking their finger on the ring-shaped handle 60 of the safety pin because the tunnel is dark, even though there is light from the lighting device. This could result in the safety pin coming loose, and the operating lever 58 being pressed down while carrying the fire extinguisher 32, causing it to be accidentally released.

To solve this problem, in this embodiment, a protective cover 56 is detachably attached to cover the ring-shaped handle 60 of the safety pin provided on the top of the fire extinguisher 32, making it possible to remove the fire extinguisher 32 by hooking a finger on the fixed lever 59 located on the underside of the protective cover 56, without hooking a finger on the ring-shaped handle 60 of the safety pin.

The protective cover 56 is, for example, a box-shaped resin case that opens downward and forward, and is simply fitted onto the top of the fire extinguisher 32 from above, so that it can be easily removed when the fire extinguisher 32 is to be used. The protective cover 56 may also be made of a desired colored resin, or a transparent resin so that the inside can be seen.

[Fire hydrant facilities]
Fig. 7 is an explanatory diagram showing the internal structure of the fire hydrant equipment in Fig. 2 in a cross section seen from the road side, and Fig. 8 is an explanatory diagram showing the state in which the hose storage part is raised by the lifting mechanism and exposed above the guard passage, as seen from the road surface side. Note that the hose storage part shown in Fig. 7 and Fig. 8 is shown in a size reduced horizontally compared to Fig. 2, and Fig. 8 shows the frame pipe of the nozzle part broken so that the nozzle holding state can be seen.

(Hose storage section)
7 and 8, a rectangular fire hydrant entrance 100 is opened at a position corresponding to the road surface of the fire hydrant storage box 26 installed in the monitor passage 14. A hose storage unit 102 is arranged below the fire hydrant entrance 100 so that it can be raised and lowered. The hose storage unit 102 has a box-shaped housing 105 with openings on the front and back, and two frame pipes 104 are arranged in the openings on the front and back of the housing 105, with a hose outlet 108 formed between them.

Inside the hose storage section 102, a hose 110 with a nozzle 112 attached to its tip is stored in an inwardly rolled state. A nozzle holder 114 is placed in the inner cavity formed by the inward rolling of the hose 110, with the upper part fitted and held in place by the hose 110, and the nozzle 112 is held detachably below the nozzle holder 114.

A fire hydrant valve opening/closing lever 116 is provided on the right side of the hose storage section 102, which enables the fire hydrant valve, which is separately arranged in the control mechanism storage section 130 in the management passage 20, to be opened and closed remotely.

(Lifting mechanism)
The hose housing portion 102 is supported by a lifting mechanism 118 so as to be movable up and down. In this embodiment, a pantograph mechanism is used as the lifting mechanism 118.

The lifting mechanism 118 using a pantograph mechanism is composed of two link arms 140a and 140b. The left end of the link arm 140a is rotatably supported on the base 150 by a fulcrum 142a, and the left end of the link arm 140b is rotatably supported on the mounting base 152 by a fulcrum 142b. The link arms 140a and 140b cross in the center and are rotatably connected at the fulcrum 142c.

The right end of link arm 140a is supported by roller 144a so as to be freely movable along mounting base 152, and the right end of link arm 140b is supported by roller 144b so as to be freely movable on base 150.

A piston cylinder mechanism is provided as the drive mechanism for the lifting mechanism 118, and the lower end of the cylinder 120 is rotatably connected to the link arm 140b by the fulcrum 146a, and the tip of the piston rod 124 connected to the piston 122 slidably provided within the cylinder 120 is rotatably connected to the link arm 140a by the fulcrum 146b.

A control mechanism storage section 130 is arranged in the management passage 20 below the internal space of the guard passage in which the fire hydrant storage box 26 is located. The control mechanism storage section 130 is provided with a water discharge control mechanism equipped with valves that supply fire water to the hose 110 in the hose storage section 102 and discharge the water, and a lifting control mechanism equipped with valves that drive the lifting mechanism 118 to move up and down.

A branch pipe 24a branching off from the main water supply pipe 24, which functions as a water pressure source, is connected to the control mechanism storage section 130, and introduces fire water supplied to the main water supply pipe 24 from the fire pump equipment.

The water supply pipe 132 from the water discharge control mechanism built into the control mechanism storage section 130 is connected via a connecting hose 126 to a flexible joint 128 that serves as the hose connection port of the hose storage section 102. The connecting hose 126 has a hose length that allows for sufficient slack for connection when the hose storage section 102 is pushed up from the fire hydrant lift port 100 of the fire hydrant storage box 26 by the lifting mechanism 118 and held in an exposed position, so that even if the hose storage section 102 is lifted or lowered relative to the fixed piping, the hose storage section 102 can move without the connecting hose 126 coming loose. In addition, the movement of the connecting hose 126 caused by the lifting or lowering operation is absorbed by the movement of the flexible joint 128.

In addition, a pipe 134 for supplying and discharging fire-fighting water is connected from the lifting control mechanism built into the control mechanism storage section 130 to the hydraulic cylinder 120 of the lifting mechanism 118.

Note that, although the lifting mechanism 118 is hydraulically driven, this is not limited and it may be hydraulically driven. Furthermore, the drive mechanism of the lifting mechanism 118 is not limited to a piston cylinder mechanism using a hydraulic cylinder 120, but may be a drive mechanism using a screw shaft.

[Fire hydrant operation]
(During normal monitoring)
During normal surveillance of vehicles passing through the tunnel 10 shown in FIG. 1, as shown in FIG. 7, the supply of fire water from the water discharge control mechanism provided in the control mechanism storage section 130 to the hose storage section 102 of the fire hydrant equipment 16 is stopped, and the water pressure cylinder 120 of the lifting mechanism 118 positions the piston 122 at the lowest point, whereby the lifting mechanism 118 stores the hose storage section 102 in the fire hydrant storage box 26 embedded in the monitor passage 14, and the housing 1
The fire hydrant entrance 100 is closed by a road surface plate 106 on the upper surface of the fire hydrant entrance 105, and even if the fire hydrant equipment 16 is installed in the watchman's passage 14, it does not obstruct the passage of people passing through the watchman's passage 14 or pose any danger.

(In the event of a fire)
On the other hand, if a vehicle accident involving a fire occurs inside the tunnel 10, the user goes to the fire hydrant facility 16 closest to the location of the fire and presses the transmitter on the reporting device panel to send a fire reporting signal to the disaster prevention receiving panel in the monitoring center. Upon receiving a confirmation response signal from the disaster prevention receiving panel, the response lamp will light up and the red indicator light will flash, confirming that the report to the monitoring center has been completed.

Next, to carry out fire-fighting operations, the lift switch on the reporting device panel is pressed to turn it on, and fire-extinguishing water is sent from the control mechanism storage section 130 to the hydraulic cylinder 120 of the lifting mechanism 118. The fire-extinguishing water supplied to the cylinder raises the piston 122, and the gap between the link arms 140a and 140b is widened via the piston rod 124.

When the distance between the link arms 140a, 140b is widened, the angle of the link arms 140a, 140b widens around the fulcrum 142c, and the rollers 144a, 144b at the right ends of the link arms 140a, 140b move to the left, causing the mounting base 152 to be pushed upward, and the hose storage section 102 attached to the mounting base 152 to be pushed up.

As a result, the road surface plate 106 closing the fire hydrant entrance 100 of the fire hydrant storage box 26 is lifted, and the hose storage section 102 stored inside slowly emerges from the road surface, rises to the exposed position shown in Figure 8, stops, and remains in this exposed position.

When the hose storage section 102 is held exposed above the guard passage in this way, the user can simply and easily pull out the hose 110 by removing the nozzle 112 held in the nozzle holder 114 suspended in the inner hollow portion of the inwardly coiled hose 110 from the road side through the hose outlet 108.

Next, the user operates the fire hydrant valve opening/closing lever 116 provided in the exposed hose storage section 102 to the open position in front, which remotely opens the fire hydrant valve provided in the water discharge control mechanism of the control mechanism storage section 130, and fire water is supplied to the hose 110 via the water supply pipe 132 and the connecting hose 126, allowing fire extinguishing work to be carried out by discharging water from the nozzle 112.

On the other hand, when a user is performing firefighting work from the guard passage 14 side, the user can simply and easily pull out the hose 110 and perform firefighting work by removing the nozzle 112 from the hose outlet on the rear side of the hose storage section 102, which is exposed and held above the guard passage 14.

When the fire is extinguished and the fire-fighting operation is completed, the fire hydrant valve opening/closing lever 116 provided in the hose storage section 102 is operated to the closed position, which closes the fire hydrant valve provided in the water discharge control mechanism of the control mechanism storage section 130, and water discharge from the nozzle 112 is stopped.

When the fire is extinguished and the firefighting work is completed, the water is drained from the hose 110, and then the hose 110 is stored in an inwardly rolled state in the hose storage section 102 that is exposed and held above the guard passage 14, and the nozzle holder 114 that was collected is fitted into the inwardly rolled inner hollow section to hold the nozzle 112.

Next, by turning on the lowering switch provided on the reporting device panel, the hose storage section 102 is lowered by the lifting mechanism 118, the road plate 106 is lowered to a position where it closes the fire hydrant entrance 100 and stops, and the hose storage section 102 is stored in the fire hydrant storage box 26.

[Fire extinguisher box with front revolving door]
FIG. 9 is an explanatory diagram showing an embodiment of a fire extinguisher box with a front revolving door from the front, the front with the door open, and the side, and FIG. 10 is an explanatory diagram showing the fire extinguisher box of FIG. 9 from the top and the top with the upper door open.

(Fire extinguisher box structure)
9 and 10, the fire extinguisher box 30 of this embodiment is provided with a semi-cylindrical front revolving door 62 that can be opened and closed by rotating laterally at the front opening 36 of the housing 34. The front revolving door 62 closes the front opening 36 in the closed position shown in Fig. 9(A), and a handle 64 is provided on the door surface at the upper right side. By placing a hand on the handle 64 and operating it counterclockwise, the front revolving door is opened as shown in Fig. 9(B), and the fire extinguisher 32 stored inside can be taken out from the front side facing the road.

The upper opening 38 of the housing 34 is provided with an upper door 42 that can be opened and closed by rotating upwards on a hinge 46. A trunk handle 66 is provided on the front side of the upper door 42, and the trunk handle 66 is closed against the door surface by a spring.

To open the upper door 42, the trunk handle 66 is raised as shown in FIG. 9(C), and the hand is inserted into it to open the upper door 42a in an upward rotation, allowing the fire extinguisher 32 to be removed by inserting the hand into the upper part on the guard passage side.

When the upper door 42 is opened from the closed state shown in FIG. 10(A) to the state shown in FIG. 10(B), the semi-cylindrical front revolving door 62 is located ahead of the housing 34 as seen from the upper opening 38, and the lower side of the front revolving door 62 is fixed to the bottom plate by fixing members 73, 74 and is fitted rotatably into the guide groove 72 of the rotation guide member 70.

The fire extinguisher 32 is stored inside the front revolving door 62, and the fire extinguisher 32 can be removed from above by simply opening the upper door 42 without opening the front revolving door 62.

In addition, even in this embodiment, a protective cover 56 is detachably stored on the top of the fire extinguisher 32, and the fire extinguisher 32 can be removed by hooking a finger on a fixed lever located on the underside of the protective cover 56, without hooking a finger on the ring-shaped handle of the safety pin.

(Front revolving door rotation structure)
11 is an explanatory diagram showing an outline of the rotation structure of the front revolving door in the fire extinguisher box of FIG. 9 in a plan view, with FIG. 11(A) showing the front revolving door in a closed state, and FIG. 11(B) showing the front revolving door in an open state.

As shown in FIG. 11, a semicircular rotating guide member 70 is disposed at the front of the bottom plate of the housing 34 of the fire extinguisher box 30, and a semicircular guide groove 72 that opens upward is formed in the rotating guide member 70.

A front revolving door 62 is disposed above the rotary guide member 70, and a guide slider 76 extending downward from the lower right end of the front revolving door 62 is fitted slidably into the guide groove 72.

As a result, when the front revolving door 62 is in the closed position shown in Figure 11 (A) and the handle is inserted and rotated counterclockwise, the guide slider 76 of the front revolving door 62 slides along the guide groove 72, and the front revolving door 62 rotates and moves to the open position shown in Figure 11 (B).

The front revolving door 62 allows the fire extinguisher box 30 to be opened and closed without the door popping out forward toward the road.

The rotating structure of the front revolving door 62 in FIG. 11 is one example, and includes any suitable rotating structure, such as placing a rotating disk on the bottom of the housing and fixing the front revolving door upright on top of it, in which case the rotating shaft is fixed, and a fire extinguisher holder for placing a fire extinguisher is fixed and positioned on top of the fixed rotating shaft.

[Modifications of the present invention]
(Installation of fire extinguisher boxes)
The above embodiment is an example of a fire extinguisher box that is embedded in the guard passage in the tunnel, but is not limited to this. For example, it may be installed on the floor as a fire extinguisher installed in a building or facility such as a building. In this case, too, when a user performs an opening operation of the upper door in the event of a fire, the front sliding door is automatically opened, and the opening of the fire extinguisher box becomes wider, allowing the user to easily take out the fire extinguisher and perform quick fire extinguishing activities.
In this case, since no one will stand on the upper door, the material and structure of the upper door can be weaker than when it is installed in the guard passage.

(Relationship with fire hydrant devices)
In the above embodiment, the fire extinguisher box is disposed independently on both sides of the fire hydrant storage box, but the present invention is not limited to this. For example, the fire extinguisher box may be provided integrally with the fire hydrant storage box.

In addition, in the above embodiment, the fire extinguisher boxes are arranged on both sides of the fire hydrant storage box, but this is not limited to this. For example, one or more fire extinguisher boxes may be arranged on one side of the fire hydrant storage box.

The above embodiment takes as an example a fire hydrant system with a structure that allows the hose storage section to be raised and lowered, but is not limited to this. For example, a fire hydrant system may be provided in which a fire hydrant storage box with a hose storage section is fixedly disposed in the supervisor's passage, a water supply control mechanism for this is disposed separately, and the fire hydrant storage box in the supervisor's passage is provided with a front sliding door and a top door, similar to the fire extinguisher box.

(Front sliding door)
In the above embodiment, one front sliding door is provided so as to be freely slidable open and closed, but the present invention is not limited to this. For example, the front sliding door may be divided into multiple pieces and slid open and closed in a state where they are stacked one on top of the other, thereby lowering the height of the door when it is opened, and making the front opening wider.

In addition, in the above embodiment, one front sliding door is arranged at the front opening of the housing, but this is not limited to this. For example, multiple front sliding doors may be arranged laterally of the front opening of the housing to increase the opening area when the door is open. In this case, the number of upper doors may be the same as the number of front sliding doors, or there may be only one upper door.

(Fire extinguisher box lifting mechanism)
In the above embodiment, the fire hydrant equipment is provided with a lifting mechanism to expose the hose storage section above the guard passage, but a similar lifting mechanism may also be provided for the fire extinguisher box, and the fire extinguisher may be exposed above the guard passage by operating the lifting mechanism. In this case, the upper door and the front sliding door may be structured to open in conjunction with the lifting drive of the fire extinguisher by the lifting mechanism.

(Number of fire extinguishers stored)
Although the above embodiment has been described with reference to an example in which one fire extinguisher is stored in the fire extinguisher box, the present invention is not limited to this. For example, the fire extinguisher box may store a plurality of fire extinguishers.

(Fire hydrant facilities)
The above embodiment takes as an example a fire hydrant equipment equipped with a fire extinguisher box, in which a lifting mechanism allows the hose storage section to be exposed above the guard passageway, but is not limited to this, and the fire hydrant equipment may have a structure in which a hose with a nozzle is wound inwardly within a housing, and the hose with a nozzle can be removed by opening the fire hydrant door.

(others)
Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited to the numerical values shown in the above embodiment.

10: Tunnel 12: Tunnel wall 14: Supervisor passage 15: Road 16: Fire hydrant equipment 18: Floor slab 20: Management passage 22: Duct 24: Water supply main pipe 24a: Branch pipe 26: Fire hydrant storage box 30: Fire extinguisher box 32: Fire extinguisher 34: Housing 36: Front opening 38: Upper opening 40: Front sliding door 40a: Sliding protrusion 40b: Door frame 42: Upper door 44: Operation mechanism 44a: Lever 46: Hinge 48: Latch 50: Fire extinguisher holder 52: Shaft 54: Angle setting member 56: Protective cover 58: Operation lever 59: Fixed lever 60: Ring-shaped handle 62: Front rotating door 64: Handle 66: Trunk handle 70: Rotation guide member 72: Guide groove

Claims (3)

A series of openings extending from the top surface to the upper front surface side when installed;
A door capable of opening and closing the series of openings;
A lower front side that is below the series of openings and is always closed;
a fire extinguisher holder that can be rotated forward by a shaft provided on the front of the bottom surface in the installed state;
an angle setting member that restricts the rotation of the fire extinguisher holder so that the stored state of the fire extinguisher stored in the fire extinguisher holder can be tilted from an angle at which the entirety of the fire extinguisher is not exposed from the series of openings to a predetermined angle at which a part of the head side of the fire extinguisher is exposed forward from the front upper side of the series of openings;
A fire extinguisher box comprising :
In the fire extinguisher box according to claim 1,
A fire extinguisher box characterized in that the specified angle is an angle at which the tilted fire extinguisher does not contact the upper end of the lower front side, and the amount by which a portion of the head side of the fire extinguisher protrudes forward from the lower front side is restricted.
In the fire extinguisher box according to claim 1,
A fire extinguisher box characterized in that, when the series of openings is opened, the fire extinguisher can be removed to the outside from the top or front side of the series of openings.

Images