JP2018153279A - Fire hydrant cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and easily handle a fire hydrant apparatus from a road side and a watchman's passage side.SOLUTION: A fire hydrant cabinet 30 is buried in a watchman's passage 14 along a tunnel wall, and a hose with a foam nozzle is stored in the inside. A front door 32 is disposed on a front face of the fire hydrant cabinet 30 in a road side 15 so as to be freely vertically-slidably opened/closed. An upper door 36 is disposed on an upper face of the fire hydrant cabinet 30 in the watchman's passage 14 side so as to be opened forward with a door rear edge used as a shaft and opened backward with a door front edge used as a shaft. When the fire hydrant cabinet is operated from the road 15 side, lock of the front door 32 and the upper door 36 is released by an operation of a forward opening handle, the front door 32 is opened by slide falling, the upper door 36 is forward opened by a gas spring, and the hose with the foam nozzle is taken out. When the fire hydrant cabinet is operated from the watchman's passage 14 side, the upper door 36 is rearward opened by the gas damper by an operation of a rearward opening handle, and the hose with the foam nozzle is taken out.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a fire hydrant storage box that draws out a hose with a nozzle and discharges fire-fighting water or fire-fighting foam.

  Conventionally, fire hydrant devices have been provided as emergency equipment for tunnels installed in tunnels such as expressways and automobile roads. The fire hydrant device has an openable fire hydrant door, and has a hose with a nozzle at the tip and a fire hydrant valve. Contains valves.

  The fire hydrant apparatus is generally embedded in the tunnel wall surface at intervals of, for example, 50 meters along the tunnel side wall. In the event of a vehicle accident involving a fire, in a tunnel with a supervisory passage, road users such as the driver of the accidental vehicle climb up to the supervisory passage by using steps installed on the side of the supervisory passage. A fire hydrant door of a fire hydrant device installed on a wall surface is opened forward, and a hose with a nozzle is taken out to perform fire extinguishing work.

  The observer passage is provided as a side wall passage that is raised with respect to the road surface, and it is possible to inspect various devices including fire hydrants installed safely in the tunnel without obstructing vehicle traffic in the tunnel. .

  Also, in a tunnel without a supervisor passage, a user such as a driver of an accident vehicle approaches a fire hydrant device installed on the wall of the tunnel, and similarly opens a fire hydrant door forward and a hose with a nozzle. The fire extinguishing work is done by taking out the water.

JP 2006-181057 A JP 2008-055024 A JP 2009-285126 A

  By the way, an urban tunnel made by a shield method or the like has a structure in which a fire hydrant device cannot be embedded and installed in the tunnel wall surface, and it is necessary to embed a fire hydrant device in the side face (wall surface) of the supervisor passage.

  However, when a fire hydrant device that opens the door forward like a conventional fire hydrant is installed in the supervisor passage, there is a problem that when the fire hydrant door is opened, it jumps out to the road side beyond the building limit.

  On the other hand, even if this problem can be solved, if a fire hydrant device is installed along the wall of the observer's passage facing the road in the tunnel, if a vehicle fire occurs and the vehicle stops before the fire hydrant door, Sometimes the stopped vehicle gets in the way and you cannot open the hydrant door and pull out the hose. Furthermore, even if it is possible to operate from the supervisor passage, it is necessary to bend over and extend the hand to open the fire hydrant door from the supervisor passage, and it may take time to operate the fire hydrant device.

  An object of the present invention is to provide a fire hydrant facility in a tunnel that allows a fire hydrant apparatus to be easily and easily handled from the road side and a supervisor passage side.

(Fire hydrant storage box)
The present invention is a fire hydrant storage box in which a hose with a nozzle is housed and housed inside a housing embedded in a monitoring person passage along a tunnel wall surface.
A front door that is slidably opened and closed in the vertical direction at the front door opening formed on the front side of the housing on the road side,
The upper door opening formed on the upper surface of the housing on the side of the supervisor's passage surface is pivotally supported so that it can be opened forward with the rear edge of the door as an axis, and is supported so that it can be opened rearward with the door front edge as an axis. An upper door,
A first opening / closing mechanism that slides and opens the front door by releasing the lock by operating the front opening handle, opens the upper door forward, and pivots the front edge of the upper door so that it can be opened and closed when the upper door is opened rearward; ,
A second opening / closing mechanism that pivots the rear edge of the upper door so that it can be freely opened and closed when the upper door is opened rearward by releasing the lock by operating the rear opening handle;
A fire hydrant storage box characterized by that.

(First opening / closing mechanism)
The first opening / closing mechanism
A pair of first rod rods connected to both sides of the handle body of the front opening handle disposed at the front edge side center of the front door, and pulled in by operation of the front opening handle;
Each of the pair of first rod rods is connected to each of the tips of the first rod rods via a first rod coupling portion in which a first U-shaped link member opened in a U-shape rearward on a horizontal plane is fixed to the first rod mounting shaft in the axial direction. A first hinge member;
A first hinge receiving member having a shaft hole into which the first hinge member can be inserted and retracted;
A first biasing member that biases the first hinge member toward the first hinge receiving member;
A front door hanger part that is disposed on the back side of the front door and holds the front door in the closed position by locking the first hook member to the first rod attachment shaft side of the first rod connecting part in a non-operating state of the front opening handle. When,
A first hook member by retracting and moving the first U-shaped link member of the first rod connecting portion to the position of the first hook member when the first rod rod is pulled in by operating the front opening handle. The front door is opened by sliding and dropping, and the upper door is opened forward.

(Second opening / closing mechanism)
The second opening / closing mechanism
A pair of second rod rods connected to both sides of the handle body of the rear opening handle disposed in the center of the rear edge side of the upper door, and pulled in by operation of the rear opening handle;
Each of the pair of second rod rods is connected to each of the tips of the second rod rods via a second rod connecting portion in which a second U-shaped link member opened in a U-shape in a horizontal plane and forward is fixed to the second rod mounting shaft in the axial direction. A second hinge member;
A second hinge receiving member having a shaft hole into which the second hinge member can be inserted and retracted;
A second biasing member that biases the second hinge member toward the second hinge receiving member;
A rear door hanger portion disposed on the rear surface of the housing and holding the rear door in the closed position by locking the second hook member to the second rod attachment shaft side of the second rod connecting portion in a non-operating state of the rear opening handle; ,
The second hook member by retracting and moving the second U-shaped link member of the second rod connecting portion to the position of the second hook member when the second rod rod is retracted by operating the rear opening handle. The upper door is configured to be released by releasing the lock.

(Handle lock of first opening / closing mechanism)
A first locking member is formed by extending a link piece of a first U-shaped link member fixed subsequent to the first rod mounting shaft in the first opening / closing mechanism to form a first lock piece, and the upper door is a first hinge member on the front edge side. When the door is stood and opened from the center axis, the movement of the first rod connecting portion in the rod retracting direction is restricted by the contact of the first lock piece with the first hook member to lock the front opening handle. Configured to let

(Handle lock of the second opening / closing mechanism)
A second locking member is formed by extending the link piece of the second U-shaped link member fixed following the second rod attachment shaft in the second opening / closing mechanism to form a second lock piece, and the upper door is a second hinge member on the rear edge side. When the shaft is opened with the shaft centered as a center line, the movement of the second rod connecting portion in the rod retracting direction is restricted by the contact of the second lock piece with the second hook member to lock the front opening handle. Let

(Axial load reduction mechanism)
A shaft load reduction mechanism is provided that reduces a load applied to the shaft on the door front edge side in a closed state by locking the first opening / closing mechanism of the upper door.

(Front door lifting mechanism)
As the axial load reduction mechanism, a predetermined push-up force is applied to the upper door in the closed state by the locking of the first opening / closing mechanism of the upper door, and the front door resists the push-up force when the upper door is unlocked A front door push-up mechanism is provided that allows the door to slide open.

(Magnetic adsorption mechanism)
As an axial load reducing mechanism, when the upper door is closed by locking the first opening / closing mechanism, the upper door and the front door opening are magnetically attracted, and the upper door is unlocked to resist magnetic attraction. A magnetic adsorption mechanism is provided that slides and drops the front door.

(Front door assist mechanism)
A door opening urging mechanism including an urging member that assists an opening force that opens the upper door forward and rearward is provided between the upper door and the housing. The urging member is, for example, a gas spring.

(Basic effect)
The present invention relates to a fire hydrant storage box in which a hose with a nozzle is housed in a housing embedded in a monitor passage along a tunnel wall surface. A front door that is slidably opened and closed in the vertical direction at the front door opening formed on the front, and an upper door opening that is formed on the upper surface of the housing that is on the side of the supervisor passage surface, with the door rear edge as the axis The front door is pivotally supported so that it can be opened forward, and the front door is pivotally supported with the front edge of the door as the axis, and the front door is slid open by releasing the lock by operating the front opening handle. When the upper door is opened and the rear door is opened rearward, the first door opening / closing mechanism that pivotably supports the front edge of the upper door and the upper door is opened rearward by releasing the lock by operating the rear opening handle. A second opening / closing machine that pivots on the rear edge of the upper door so that it can be opened and closed Therefore, when a fire occurs due to a vehicle accident, when the user operates the front opening handle on the front of the door, the front door facing the road is slid open and the front door opens in the depth direction. The front upper part and the upper surface of the fire hydrant storage box are greatly opened, and the fire can be easily extinguished by easily and easily pulling out the hose with the nozzle from the hose storage part.

  Also, if the vehicle stops before the fire hydrant and the user cannot operate from the road side, the user climbs up to the supervisor passage, leans over and operates the rear opening handle, and the upper door moves to the road side. Opening is performed after opening, and the fire can be extinguished by easily and easily pulling out the hose with the nozzle from the hose storage portion without being obstructed by the stopped vehicle.

  In addition, it functions as a fence when the upper door opens rearward on the road side, so when pulling out a hose with a nozzle from the upper opening, the danger of the user falling to the road side is avoided, and it is taken out from the inside It is also possible to prevent the nozzle from dropping on the road side.

  The first opening / closing mechanism functions as a front door opening / closing mechanism and a closing release mechanism when the upper door is opened forward, and simultaneously functions as a hinge mechanism when the upper door is opened rearward. It functions as a closure release mechanism for opening the upper door after opening, and at the same time, it functions as a hinge mechanism for opening the upper door in front, opening the front door and the upper door from the road side, and the upper door from the supervisor passage side Can be opened.

(Effects of the first opening / closing mechanism and the second opening / closing mechanism)
The first opening / closing mechanism is coupled to both sides of the handle body of the front opening handle disposed at the center of the front edge of the front door, and a pair of first rod rods that are pulled in by operating the front opening handle, and a pair of first A first hinge member connected to each end of the rod rod via a first rod connecting portion in which a first U-shaped link member opened in a U-shape rearward in a horizontal plane is fixed to the first rod mounting shaft in the axial direction. A first hinge receiving member having a shaft hole into which the first hinge member can be inserted and retracted; a first urging member for urging the first hinge member toward the first hinge receiving member; and a rear side of the front door A front door hanger part that holds the front door in the closed position by locking the first hook member to the first rod attachment shaft side of the first rod connecting part in a non-operating state of the front opening handle, The first rod is pulled by operating the front opening handle. When the first hook member is pulled, the first U-shaped link member of the first rod connecting portion is pulled and moved to the position of the first hook member, thereby releasing the locking of the first hook member and opening the front door by sliding and dropping. And the second opening / closing mechanism is connected to both sides of the handle body of the rear opening handle disposed at the center of the rear edge of the upper door and is pulled in by operating the rear opening handle. 2 rod rods and a second rod connecting portion in which a second U-shaped link member, which is opened in a U-shape in a horizontal plane on the second rod mounting shaft, is axially fixed to each end of the pair of second rod rods. A second hinge member connected via the second hinge member, a second hinge receiving member provided with a shaft hole into which the second hinge member can be inserted and retracted, and a second hinge member biasing the second hinge member toward the second hinge receiving member. Biasing member and housing A rear door hanger portion disposed on the back surface and locked with the second hook member on the second rod mounting shaft side of the second rod connecting portion in a non-operating state of the rear opening handle to hold the rear door in the closed position. When the second rod bar is pulled in by operating the rear opening handle, the second hook member is pulled and moved to the position of the second hook member, thereby engaging the second hook member. Since the upper door is configured to be released by opening the upper door, for example, taking the first opening / closing mechanism as an example, the first hinge member on the distal end side is pulled by pulling the first rod rod by operating the front opening handle. Is removed from the first hinge receiving member to release the lock, and at the same time, the U-shaped portion of the first U-shaped link member moves to the position of the first hook member fixed to the front door. By releasing the stop, The front door can be opened by sliding and dropping.

  In the second opening / closing mechanism, the second hinge member on the distal end side is pulled off from the second hinge receiving member by the pulling of the second rod rod by the operation of the rear opening handle, and the locking is released. The portion of the U-shaped link member that is open in the U-shape moves to the position of the second hook member that is fixed to the back of the housing, and the locking is released, so that the locking on the rear edge side of the upper door is released. Can be opened later.

  Further, the first opening / closing mechanism and the second opening / closing mechanism are different in that the first hook member is fixed to the rear surface of the front door or the second hook member is fixed to the rear surface of the housing. The configuration is basically the same, the mechanism structure is simple, the parts can be shared, and high productivity can be obtained, thereby reducing the cost.

(Effect by locking the handle)
In addition, the first locking piece is formed by extending the link piece of the first U-shaped link member fixed subsequent to the first rod attachment shaft in the first opening / closing mechanism to form the first lock piece, and the upper door is the first on the front edge side. When the hinge member is opened rearward with the axis as a center line, the movement of the first rod connecting portion in the rod retracting direction is restricted by the contact of the first lock piece with the first hook member, and the front opening handle The second locking piece is formed by extending the link piece of the second U-shaped link member fixed following the second rod mounting shaft in the second opening / closing mechanism to form the second locking piece. When the second hinge member on the trailing edge side is opened with the axial center line open, the movement of the second rod connecting portion in the rod retracting direction is caused by the contact of the second lock piece with the second hook member. Restricted to lock the front opening handle Therefore, even if an attempt is made to operate the rear opening handle with the upper door opened forward, the rod rod is prevented from being pulled in, so the handle is locked and does not move. It is possible to reliably prevent such a problem that the hinge portion of the wing is pulled and removed.

  Also, even if you try to operate the front opening handle with the upper door opened rearward, the rod rod is prevented from retracting, so the handle is locked and does not move. It is possible to reliably prevent such a problem that the locking is released, the slide is dropped and released, and at the same time, the hinge portion at the front edge of the upper door is pulled in and removed.

(Effects of a shaft load reduction mechanism)
Further, since the shaft load reducing mechanism for reducing the load applied to the shaft on the door front edge side in the closed state by the locking of the first opening / closing mechanism of the upper door is provided, the hinge fitted in the hinge receiving portion of the first opening / closing mechanism The weight of the front door is added to the first rod connecting part where the member and the first hook claw are locked, and it requires a strong operating force to operate the front opening handle for pulling the rod, but it cannot be operated easily. The reduction mechanism reduces the axial load, reduces the operating force of the front opening handle, and allows easy operation.

(Effect of front door push-up mechanism)
Further, as the axial load reducing mechanism, a predetermined push-up force is applied to the upper door in the closed state by the lock of the first opening / closing mechanism of the upper door, and the push-up force is resisted when the lock of the upper door is released. Since the front door push-up mechanism that slides and opens the front door is provided, for example, the operating force of the front opening handle is reduced to, for example, 49 Newton or less required for tunnel fire hydrant equipment, and anyone can operate.

(Effect of magnetic adsorption mechanism)
In addition, as an axial load reducing mechanism, when the upper door is closed by locking the first opening / closing mechanism, the upper door and the front door opening are magnetically attracted, and when the upper door is unlocked, it is magnetically attracted. The magnetic adsorption mechanism that slides and opens the front door against it is provided, so that a simple structure of providing a magnet and a magnet holder can reduce the operating force that anyone can operate the front opening handle.

(Effect of front door assist mechanism)
Further, between the upper door and the housing, there is provided a door opening biasing mechanism including a biasing member that assists the opening force for opening the upper door forward and backward, and the biasing member is, for example, a gas spring. By unlocking the upper door, the upper door can be opened forward or rearward with the assistance of the door opening biasing mechanism automatically or with a light force.

  Further, since the push-up force by the gas spring is applied to the upper door when the upper door is closed, the push-up force is applied to the front door via the upper door, the axial load of the first opening / closing mechanism is reduced, and the front opening handle The operating force is light and can be easily operated.

Explanatory drawing showing emergency equipment for tunnels including fire hydrant equipment installed in a shield tunnel Explanatory drawing showing the internal structure of the fire hydrant storage box from the front and plane Explanatory drawing showing the internal structure of the fire hydrant storage box in a cross-section when it is normal, when the front door is opened, when the upper door is opened, and when the upper door is opened Explanatory drawing which showed the cross section and plane which looked at the 1st opening and closing mechanism and the 2nd opening and closing mechanism in the closed state of a front door and an upper door from the front. Explanatory drawing which showed the cross section which looked at the 1st opening and closing mechanism and the 2nd opening and closing mechanism in the closed state of a front door and an upper door from the side. The perspective view which showed the 1st opening / closing mechanism in the closed state of a front door and an upper door seeing from the inside of a housing | casing The perspective view which showed the lock piece formed in the U-shaped link by partially fractured of FIG. Explanatory drawing which showed the front door and the upper door lock release operation by the 1st opening / closing mechanism at the time of operating a front opening handle in the section and plane seen from the front Explanatory drawing which showed the lock release operation | movement of the front door by the 1st opening / closing mechanism at the time of operating a front opening handle, and the cross section seen from the side Explanatory drawing which showed the lock | rock operation | movement of the rod attachment axis | shaft by the lock piece of a 2nd opening / closing mechanism in the state which looked at the side from the side in the state which opened the upper door forward Explanatory drawing which showed the unlocking operation | movement of the upper door by the 2nd opening / closing mechanism at the time of operating a rear opening handle by the plane Explanatory drawing which showed the lock release operation | movement of the upper door by the 2nd opening / closing mechanism at the time of operating a rear opening handle in the cross section seen from the side surface Explanatory drawing which showed the lock | rock operation | movement of the rod attachment axis | shaft by the locking piece of a 1st opening / closing mechanism in the state which looked at the side from the side in the state which opened the upper door back Explanatory drawing which showed the structure of the link mechanism which pulls in and drives the rod rod provided in the front opening handle Explanatory drawing which showed the embodiment of the fire hydrant storage box which provided the front door push-up mechanism in the front door from the front Explanatory drawing showing a cross section seen from the side when the front door is closed and when the front door is opened of a fire hydrant storage box provided with a front door push-up mechanism on the front door Explanatory drawing which showed the embodiment of the fire hydrant storage box which provided the magnetic adsorption mechanism in the front door from the front Explanatory drawing showing the exterior of the fire hydrant storage box from the front, plane and side Explanatory drawing which showed the cross section which looked at the water discharge control mechanism from the road surface side with the fire hydrant storage box by the side of a supervisor

[Outline of tunnel emergency equipment]
FIG. 1 is an explanatory view showing a tunnel emergency facility including a fire hydrant facility installed in a tunnel of an automobile exclusive road. As shown in FIG. 1, the inside of the tunnel 10 constructed by the shield method is covered with a cylindrical tunnel wall surface 12, and a road 15 is provided by being partitioned by a floor slab 18. In this example, The road 15 has two lanes in one direction.

  A supervisor passage 14 is provided along the tunnel wall 12 on the left side of the road 15 partitioned by the floor slab 18, and the inner space below the supervisor passage 14 is used as a duct 22, and a conduit is laid. . The monitoring staff passage 14 has a size of 90 centimeters in height and 70 centimeters in width, for example.

  The lower side of the floor slab 18 on which the road 15 is formed is divided into a plurality of sections in the tunnel lateral direction. For example, the section located under the supervisor passage 14 is used as a management passage 20, and The management passage 20 is used as an emergency evacuation passage when a fire occurs in the tunnel. A water supply main 24 is laid in the management passage 20.

  A fire hydrant facility 16 is installed every 50 meters in the longitudinal direction of the tunnel 10, and the fire hydrant facility 16 is installed separately in a fire hydrant storage box 30 in which a hose is stored and a water discharge control mechanism storage unit 120.

  The fire hydrant storage box 30 is disposed in a fire hydrant embedding portion that is penetrated in a box shape over the road surface of the supervisor passage 14 and the wall surface on the road 15 side. The water discharge control mechanism storage unit 120 is disposed in the management passage 20 below the fire hydrant storage box 30, the branch pipe 24 a branched from the water supply main pipe 24 is drawn in, and the fire hydrant storage box 30 is supplied with fire water. A water supply pipe 25 is started up.

[Fire hydrant equipment]
2 is an explanatory view showing the appearance of the fire hydrant storage box from the front and the plane. FIG. 3 shows the internal structure of the fire hydrant storage box in a normal state, when the front door is opened, when the upper door is opened, and when the upper door is opened. FIG.

(External structure of fire hydrant storage box)
As shown in FIG. 2, the fire hydrant storage box 30 of the fire hydrant facility 16 is embedded in an internal space below the road surface of the supervisor passage 14. As shown in FIG. 2A, the fire hydrant storage box 30 has a front door 32 slidably arranged in a vertical direction in a front door opening 31 formed on the upper side of the front center of the housing.

  Further, as shown in FIG. 2B, an upper door 36 having the same width as the front door 32 is disposed in the upper surface door opening 33 formed on the upper surface of the fire hydrant storage box 30 on the road surface side of the monitoring person passage 14. Has been. The upper door 36 can be opened forward and rearward.

  Here, the front opening of the upper door 36 means that the upper door 36 is opened and closed around the rear edge of the depth side of the upper door 36 as an axis, as shown in FIG. Further, the rear opening of the upper door 36 means that the upper door 36 is opened and closed around the front edge portion in front of the upper door 36 as an axis, as shown in FIG.

  As shown in FIGS. 2 and 3A, the front door 32 and the upper door 36 are locked in a closed state, and when the user operates from the road 15 side, the front opening handle 34 is opened. Then, a pair of rod rods 42a connected to both sides of the front opening handle 34 are drawn to the handle side, the hinge 50a pivotally supported to the housing 28 side is drawn, and the upper door 36 is unlocked. As the rod bar 42a is retracted, the locking of the front door 32 with respect to the upper door 36 is released, and the front door 32 falls to the back side of the fixed door 35 due to its own weight to open the front door opening 31 of the fire hydrant storage box 30. As shown in FIG. 3B, the upper door 36 of the fire hydrant storage box 30 is opened by opening the upper door 36 forward by pushing up the gas spring 40 that functions as a door opening biasing mechanism.

  In this case, as shown in FIG. 2B, the front door 36 is opened by the hinge 50b at the tip of the rod bar 42b connected to both sides of the rear opening handle 38 being pivotally supported on the housing 28 side. And is opened forward with the hinge 50b as an axis.

  In addition, when the user operates from the supervisor passage 14 side, if the rear opening handle 38 is opened, a pair of rod rods connected to both sides of the rear opening handle 38 as shown in FIG. 42b is pulled into the handle side, the hinge 50b pivotally supported on the housing 28 side is pulled in, the rear edge side of the upper door 36 is unlocked, and the rod bar 42a connected to both sides of the front opening handle 34 As shown in FIG. 3C, the top door opening 33 of the fire hydrant storage box 30 is opened by opening the upper door 36 rearward by pushing up the gas spring 40, with the hinge 50 a at the tip of the door as an axis.

  Here, the gas spring 40 is provided with a piston slidably inside the cylinder, and a rod connected to the piston is taken out at the bottom. An inert gas such as nitrogen gas is added to the cylinder chamber partitioned by the piston. The pressure is filled, and a force for pushing out the rod through the piston is applied by the filled gas pressure.

[Opening and closing mechanism of front door and upper door]
FIG. 4 is an explanatory view showing the first opening / closing mechanism and the second opening / closing mechanism in a closed state of the front door and the upper door in a sectional view and a plan view as seen from the front, and FIG. 5 shows the first opening / closing mechanism in the closed state of the front door and the upper door. FIG. 6 is an explanatory view showing the first opening / closing mechanism and the second opening / closing mechanism in a cross section viewed from the side, and FIG. 6 is a perspective view showing the first opening / closing mechanism in the closed state of the front door and the upper door as viewed from the inside of the housing. 7 is a perspective view showing a lock piece formed in a U-shaped link by partially breaking in FIG.

  The opening / closing mechanism of the front door 32 and the upper door 36 according to the present embodiment includes a first opening / closing mechanism and a second opening / closing mechanism.

  The first opening / closing mechanism is used when the front door 32 is slid open by opening the front opening handle 34 shown in FIG. 2 and the upper door 36 is opened forward, and the upper door 36 is opened rearward. This is a mechanism for pivotally supporting the front edge side of the upper door 36 so that it can be opened and closed.

  Further, the second opening / closing mechanism opens the upper door 36 by releasing the lock by operating the rear opening handle 38 shown in FIG. 2, and the rear edge side of the upper door 36 when the upper door 36 is opened forward. It is a mechanism that pivotally supports the door so that it can be opened and closed.

(First opening / closing mechanism)
As shown in FIGS. 4, 5 and 6, the first opening / closing mechanism includes a rod bar 42a, a rod mounting shaft 46a, a U-shaped link 48a, a hinge 50a, a hinge guide member 52a, a coil spring 54a, a hinge receiving member 56a, and a hook. It is comprised by the front door hanger part 60a provided with 62a.

  As shown in FIG. 2, the rod rod 42 a is connected to both sides of the front opening handle 34, and is pulled by operating the front opening handle 34.

  A rod mounting shaft 46a, a U-shaped link 48a, and a hinge 50a are sequentially connected and fixed to the tip of the rod rod 42a. The rod attachment shaft 46a has one end rotatably connected to the tip of the rod rod 42a by an axial pin, and the other end of which is fixed to one end of a U-shaped link 48a.

  The U-shaped link 48a is a plate member that is opened in a U shape rearward (in the depth direction) on a horizontal plane as shown in the plane of FIG. Here, the rod mounting shaft 46a and the U-shaped link 48a constitute a rod connecting portion 44a that connects the rod rod 42a and the hinge 50a.

  The hinge 50a has a spherical protrusion at the front end and is arranged so as to be able to protrude and retract in the shaft hole of the hinge receiving member 56a. The coil spring 54a is fitted into the small-diameter shaft portion, and the hinge 50a is biased toward the distal end side with respect to the hinge guide member 52a.

  On the other hand, a front door hanger portion 60 a is provided on the back surface of the front door 32. As shown in FIGS. 4A, 5 and 6, the front door hanger portion 60a has a hook 62a pivotally supported by a screw pin 66a on a mounting member 64a fixed to the back surface of the front door 32. The hook claw 65a at the tip of the hook 62a is urged by the winding spring 68a provided on the screw pin 66a so as to enter the rod mounting shaft 46a. FIG. 4B shows only the hook 62a of the front door hanger portion 60a, and the others are omitted.

  As shown in FIG. 5, the link piece of the U-shaped link 48a connected and fixed to the rod attachment shaft 46a extends rearward beyond the outer diameter of the rod attachment shaft 46a. Is formed. The formation of the lock piece 58a is also apparent from FIG. 7 in which a part of the hook 62a is broken.

  Here, the rod bar 42a, the rod mounting shaft 46a, the U-shaped link 48a, the hinge 50a, the hinge guide member 52a, the coil spring 54a, the rod connecting portion 44a, the hook 62a, and the lock piece 58a constituting the first opening / closing mechanism are the first rod. It functions as a rod, a first rod mounting shaft, a first U-shaped link member, a first hinge member, a first hinge receiving member, a first rod connecting portion, a first hook member, and a first lock piece.

  Further, the shaft member including the rod bar 42a, the rod mounting shaft 46a, the U-shaped link 48a, and the hinge 50a has a function of a fixed shaft for rotation for opening the upper door 36 rearward and for opening the upper door 36 forward. It also functions as a rod shaft that pulls off the fixed shaft for rotation.

(Second opening / closing mechanism)
As shown in FIGS. 4B and 5, the second opening / closing mechanism includes a rod bar 42b, a rod mounting shaft 46b, a U-shaped link 48b, a hinge 50b, a hinge guide member 52b, a coil spring 54b, a hinge receiving member 56b, and a hook. It is comprised by the upper door hanger part 60b provided with 62b. The difference from the first opening / closing mechanism is that it is operated by the rear opening handle 38 and that the upper door hanger 60b provided with the hook 62b is fixed to the rear surface of the housing. This is basically the same as the first opening / closing mechanism.

  In the second opening / closing mechanism, the rod bar 42b is connected to both sides of the rear opening handle 38 as shown in FIG.

  A rod mounting shaft 46b, a U-shaped link 48b, and a hinge 50b are sequentially connected and fixed to the tip of the rod bar 42b. The rod attachment shaft 46b has one end rotatably connected to the tip of a rod rod 42b by a shaft pin, and the other end of which is fixed to one end of a U-shaped link 48b.

  The U-shaped link 48b is a plate member opened in a U-shape forward on a horizontal plane as shown in the plane of FIG. Here, the rod mounting shaft 46b and the U-shaped link 48b constitute a rod connecting portion 44b that connects the rod bar 42b and the hinge 50b.

  The hinge 50b has a spherical protrusion at the front end and is disposed so as to be able to protrude and retract in the shaft hole of the hinge receiving member 56b. The coil spring 54b is fitted into the small-diameter shaft portion, and the hinge 50b is biased toward the distal end side with respect to the hinge guide member 52b.

  On the other hand, as shown in FIG. 5, an upper door hanger portion 60 b is provided on the back surface of the housing 28. The upper door hanger portion 60b pivotally supports a hook 62b upwardly by a screw pin 66b on a support fitting 64b fixed to the back surface of the housing 28, and a hook spring 68b provided on the screw pin 66b. The hook claw 65b at the tip is urged to enter the rod mounting shaft 46b. FIG. 4B shows only the hook 62b of the upper door hanger portion 60b, and the others are omitted.

  The link piece of the U-shaped link 48b connected and fixed to the rod attachment shaft 46b extends forward beyond the outer diameter of the rod attachment shaft 46b, thereby forming a lock piece 58b.

  Here, the rod bar 42b, the rod mounting shaft 46b, the U-shaped link 48b, the hinge 50b, the hinge guide member 52b, the coil spring 54b, the rod connecting portion 44b, the hook 62b, and the lock piece 58b constituting the second opening / closing mechanism are the second rod. It functions as a rod, a second rod mounting shaft, a second U-shaped link member, a second hinge member, a second hinge receiving member, a second rod connecting portion, a second hook member, and a second lock piece.

  Further, the shaft member including the rod bar 42b, the rod mounting shaft 46b, the U-shaped link 48b, and the hinge 50b is used for the function of a fixed shaft for rotation for opening the upper door 36 forward and for opening the upper door 36 rearward. It also functions as a rod shaft that pulls off the fixed shaft for rotation.

[Operation to open the upper and front doors from the road side]
FIG. 8 is an explanatory view showing a front sectional view and a plan view of the unlocking operation of the front door and the upper door by the first opening / closing mechanism when the front opening handle is operated, and FIG. 9 is a case where the front opening handle is operated. FIG. 10 is a cross-sectional view of the front door and the upper door unlocking operation by the first opening / closing mechanism when viewed from the side, and FIG. 10 shows the rod mounting shaft by the locking piece of the second opening / closing mechanism in the state where the upper door is opened forward. It is explanatory drawing shown in the cross section which looked at the locking operation from the side.

  When the user operates the fire hydrant storage box 30 from the road side, when the handle operation of pulling up the handle lever of the front opening handle 34 shown in FIG. 2 (A) is performed, as shown in FIG. The rod rod 42a of the 1-opening / closing mechanism is pulled to the handle side, and the hinge 50a connected to the rod rod 42a via the rod mounting shaft 46a and the U-shaped link 48a is pulled out from the shaft hole of the hinge receiving member 56a. The lock on the front edge side of the upper door 36 with respect to the body 28 is released, and the front door 36 starts to be opened like the upper door 36a indicated by an imaginary line in FIG. 9, and as shown in FIG. It is opened forward by the spring 40.

  Also, as the rod mounting shaft 46a and the U-shaped link 48a move as the rod rod 42a is retracted, the hook claw 65a that has been locked on the upper side of the rod mounting shaft 46a until then is moved to the position of the hook claw 65a. The U-shaped portion of the U-shaped link 48a moves and the hook claw 65a is unlocked. As shown in FIG. 9, the front door 32 slides and falls due to its own weight, as shown in FIG. Then, the front door 32 is opened.

  Since the foam nozzle is locked to the nozzle holder on the back side of the upper door 36 opened by the front opening as will be clarified later, the foam nozzle appears in front of the eyes and easily foams. The nozzle can be taken out and the hose can be pulled out.

  Also, as shown in FIG. 10, when the upper door 36 is fully opened and stood up, the rod is attached to the hook claw 65b at the tip of the hook 62b disposed on the rear surface of the housing of the second opening / closing mechanism. The shaft 46b faces upward as the upper door 36 rotates, and the lock piece 58b formed on the U-shaped link 48b also rotates to an upward position and moves to a position opposite to the hook claw 65b.

  For this reason, even if the rear opening handle 38 provided on the rear edge side of the upper door 36 is operated to pull the rod rod 42b in a state where the front opening of the upper door 36 is completed, the lock formed on the U-shaped link 48a. Since the piece 58b cannot move by hitting the hook claw 65b, the operation of the rear opening handle 38 is locked, and the pivotal support by the hinge 50b is reliably prevented in the rear opening state of the upper door 36. .

[Operation to open the upper door from the side of the supervisor passage]
FIG. 11 is an explanatory view showing in plan the unlocking operation of the upper door by the second opening / closing mechanism when the rear opening handle is operated, and FIG. 12 is an illustration of the upper door by the second opening / closing mechanism when the rear opening handle is operated. FIG. 13 is a cross-sectional view showing the locking operation of the rod mounting shaft by the lock piece of the first opening / closing mechanism in a state where the upper door is opened rearward. It is explanatory drawing.

  When the user operates the fire hydrant storage box 30 from the side of the supervisor passage, the user performs a handle operation for bending the body from the supervisor passage and pulling up the handle lever of the rear opening handle 38 shown in FIG. As shown in FIG. 11, the rod bar 42b of the second opening / closing mechanism is pulled to the handle side, and a hinge 50b connected to the rod bar 42b via a rod mounting shaft 46b and a U-shaped link 48b is a hinge receiver. It is pulled out from the shaft hole of the member 56b, and the lock on the front edge side of the upper door 36 with respect to the housing 28 is released.

  In addition, the movement of the rod mounting shaft 46b and the U-shaped link 48b associated with the pulling of the rod rod 42b causes the hook claw 65b that has been locked to the upper side of the rod mounting shaft 46b to be moved to the position of the hook claw 65b. The U-shaped portion of the U-shaped link 48b moves, the hook claw 65b is released, and the rear opening of the upper door 36 starts like the upper door 36a indicated by the imaginary line in FIG. As shown in (4), the gas spring 40 is energized and released.

  Since the foam nozzle is locked to the nozzle holder on the back side of the upper door 36 opened by rear opening, the foam nozzle appears in front of the eyes, and the foam nozzle is easily taken out from the side of the supervisor passage. The hose can be pulled out.

  Further, as shown in FIG. 13, when the upper door 36 is fully opened rearward and is in a standing state, the hook claw 65a at the tip of the hook 62a disposed on the back surface of the front door 32 of the first opening / closing mechanism, As the upper door 36 rotates, the rod mounting shaft 46a faces upward, and the lock piece 58a formed on the U-shaped link 48a also rotates to an upward position and moves to a position opposite to the hook claw 65a.

  For this reason, when the rear opening of the upper door 36 is completed, even if the front opening handle 34 provided on the front edge side of the upper door 36 is operated to pull the rod rod 42a, the lock formed on the U-shaped link 48a. The piece 58a cannot move by hitting the hook claw 65a, the operation of the front opening handle 34 is locked, and the opening of the upper door 36 is released when the front door 32 is unlocked and the shaft 50 is released by the hinge 50a. Is surely prevented.

[Handle link mechanism]
FIG. 14 is an explanatory view showing the structure of a link mechanism that pulls and drives a rod bar provided on the front opening handle, FIG. 14 (A) shows a non-operation state, and FIG. 14 (B) shows an operation state. .

  As shown in FIG. 14A, one end of a pair of bent links 88 is connected to the handle main body 34a by a moving fulcrum 90, and the bent position of the link 88 is fixed to the handle main body 34a side as a rotation fulcrum 92. The other end of the link 88 is connected as a slide fulcrum 94 to a fulcrum 96 at the end of the rod shaft 42a, and the moving fulcrum 90 is urged upward by a spring 98 in the drawing.

  When the front opening handle 34 is not operated, the link 88 is rotated outwardly by the force of the spring 98, so that the rod bar 42a is set to the non-operation position, and the hinge on the tip side of the rod shaft 42a is hinged. The upper door 36 and the front door 32 are locked in the closed position by fitting into the members.

  When the front opening handle 34 is lifted up, as shown in FIG. 14B, the moving fulcrum 90 moves downward against the spring 98 via a link mechanism (not shown), whereby the link 88 rotates inward. By moving the rod rods 42a on both sides inwardly, the hinge on the tip side of the rod rod 42a is pulled off from the hinge receiving member, the front door 32 is unlocked, and the front door 32 slides under its own weight. The upper door 36 is dropped and opened, and the upper door 36 is also unlocked and opened forward by a spring spring.

  The link mechanism of the rear opening handle 38 is the same as that shown in FIG. The link mechanism of the handle is not limited to the link mechanism shown in FIG. 14, and when the front opening handle 34 or the rear opening handle 38 is operated, the link rods 42a and 42b on both sides are pulled inward to pull the hinge from the hinge receiving member. An appropriate linkage mechanism to be removed is included.

[Axial load reduction mechanism of first opening / closing mechanism]
(Front door lifting mechanism)
FIG. 15 is an explanatory view showing an embodiment of a fire hydrant storage box provided with a front door push-up mechanism on the front door, and FIG. 16 is a front view of the fire hydrant storage box provided with a front door push-up mechanism on the front door. It is explanatory drawing shown with the cross section seen from the side surface at the time of door opening.

  In the closed state of the upper door 36 and the front door 32 shown in FIGS. 4 to 6, the rod mounting shaft in which the hinge 50 a fitted in the hinge receiving member 56 a of the first opening / closing mechanism and the hook claw 65 a of the hook 62 a are locked. The weight W of the front door 32 is added to 46a, and there is a possibility that a strong operating force is required for the operation of the front opening handle 34 for retracting the rod rod 42a, so that it cannot be easily operated.

  Therefore, in the present embodiment, as shown in FIG. 15, a front door push-up mechanism 100 that functions as an axial load reduction mechanism is provided on the lower side inside the front door 32.

  As shown in FIG. 16A, the front door push-up mechanism 100 includes a rotary shaft portion 102 having a winding spring, a push-up arm 104 connected to the rotary shaft portion 102, and a roller 106 provided at the tip of the push-up arm 104. In the closed state of the front door 32 by the hinge 50a of the first opening / closing mechanism, the roller 106 at the tip of the push-up arm 104 is brought into contact with the lower end of the front door 32 and is pushed up by a winding spring provided on the rotary shaft portion 102 The force F1 is applied upward.

  Further, although the load of the upper door 36 is also applied to the hinge 50a of the first opening / closing mechanism, the upper door 36 is pushed up by the gas spring 40. Therefore, the pushing force F2 by the gas spring 40 is also applied to the hinge 50a. Yes.

Therefore, the operating force F0 of the front opening handle 34 is
F0 = W-F1-F2
Given in.

  The handle operating force F0 of the tunnel fire hydrant facility of this embodiment is required to be 49N (Newton) or less so that anyone can operate, and the front door push-up is performed so that the handle operating force F0 is 49N or less. The push-up force F1 of the mechanism 100 is set.

  FIG. 16B shows a case where the front opening handle 34 is operated. When the locking of the front door 32 and the upper door 36 is released, the weight W of the front door 32 is determined by the push-up force F1 of the front door push-up mechanism 100. Since it is large, the push-up arm 104 rotates downward in response to the weight W of the front door 32, and the front door 32 slides and opens. At this time, since the front door 32 is in contact with the roller 104 of the push-up arm 104, the push-up arm 106 smoothly rotates in response to the slide drop of the front door 32, and the front door 32 is opened.

  Note that the front door push-up mechanism 100 is not limited to the above-described arm rotation structure, and for example, a coil spring that applies a push-up force may be provided on the lower side of the front door 32.

(Magnetic adsorption mechanism)
FIG. 17 is an explanatory view showing an embodiment of a fire hydrant storage box provided with a magnetic adsorption mechanism on the front door from the front.

  As shown in FIG. 17, a magnetic adsorption mechanism 108 that functions as an axial load reduction mechanism is provided on the upper left and right sides of the front door 32. The magnetic attraction mechanism 108 is disposed on the inner surface of the front door 32 facing the magnet 110 and the magnet 110 using the magnetic material disposed on the inner surface of the housing 28 side facing the side surface of the front door 32. A magnet receiving member 112 is used.

  In the closed state in which the front door 32 is locked by the hinge 50a of the first opening / closing mechanism, the magnetic attractive force F3 for supporting the front door 32 upward by the magnet 110 and the magnet receiving member 112 between the front door 32 and the housing 28. Will occur.

  Further, although the weight of the upper door 36 is also added to the hinge 50a of the first opening / closing mechanism, the upper door 36 is pushed up by the gas spring 40, as shown in FIG. The lifting force F2 by 40 is also added.

Therefore, the operating force F0 of the front opening handle 34 is
F0 = W-F3-F2
Given in.

  The handle operating force F0 is required to be 49N or less so that anyone can operate, and the magnetic attraction force F3 of the magnetic attraction mechanism 100 is set so that the handle operating force F0 is 49N or less.

  Since such a magnetic adsorption mechanism 108 is provided on the front door 32, the front opening handle 34 can be reduced to an operation force that anyone can operate with a simple structure in which the magnet 110 and the magnet receiving member 112 are provided.

[Internal structure of fire hydrant storage box]
FIG. 18 is an explanatory view showing the appearance of the fire hydrant storage box from the front, the plane, and the side. As shown in FIG. 18, the inside lower side of the fire hydrant storage box 30 is a hose storage portion 150, and a hose 160 having a shape-retaining structure is internally wound around the horizontal. Here, since the width of the fire hydrant storage box 30 is about 1.4 meters and the depth is about 0.35 meters, the length of one turn of the hose 160 wound around the hose storage portion 150 is approximately 3 meters. Since the hose length needs to be 30 meters or more, the hose 60 may be wound internally for 9 turns or more.

  A hose guide 152 is disposed in the center of the fire hydrant storage box 30. The hose guide 152 uses a metal pipe, and two guide pipes 156 bent in an L shape from the upper surface to the front surface are arranged inside the openings of the front door 32 and the upper door 36 shown in FIG. The guide pipe 154 is disposed laterally at the approximate center of the guide pipe 154 and both ends thereof are fixed to the guide pipe 156. With the front door 32 and the upper door 36 opened, the upper front surface and the upper opening following the guide door 154, 156 The space for taking out the hose 160 is formed by partitioning with.

  Further, the guide pipe 156 is positioned on the lower surface of the upper door 36 whose upper portion is closed, and has an upper door support structure in which the upper door 36 is placed and supported on the guide pipe 156 in a closed state. Here, the upper door 36 has a length exceeding, for example, 1 meter along the supervisor passage 14, but guide pipes 156 are positioned in the front-rear direction at two locations of the door opening to support the upper door 36. Even if a person gets on the closed upper door 36, sufficient support strength is obtained by supporting it with the guide pipe 156.

  Further, a stepped receiving portion made of a plate member fixed to the housing 28 side is formed inside the both ends of the upper door 36, and both ends of the upper door 36 are placed on the stepped receiving portion so that the guide pipe 156 supports the stepped receiving portion. In addition, sufficient support strength is obtained.

  A nozzle holder 164 is disposed on the back surface of the upper door 36, and a foam nozzle 162 provided at the tip of the hose 160 is detachably locked to the nozzle holder 164. For this reason, when the upper door 36 is opened forward or rearward, the foam nozzle 162 held on the rear surface of the door appears on the upper portion of the fire hydrant storage box 30.

  The position where the foam nozzle 162 held on the back of the door appears by opening the front door 36 is approximately 0.9 to 1.3 meters from the road 15, and this is the position of the user standing on the road. It corresponds to the range from the waist to the shoulder, and the foam nozzle 162 appears in front of the eyes, so that the foam nozzle 162 can be easily taken out.

  Further, the position where the foam nozzle 162 held on the back surface of the door appears when the upper door 36 is opened rearward is approximately 0.2 to 0.4 meters from the road surface of the supervisor passage 14. 14, the foam nozzle 162 appears in front of the user who is operating the rear opening handle 38 with his body bent, and the user can easily take out the foam nozzle 162 from the side of the supervisor passage 14.

  An operation box 166 is disposed on the upper side of the guide pipe 156 disposed on the right side in the fire hydrant storage box 30, and a fire hydrant valve opening / closing lever 168 is provided in the operation box 166 and provided inside the operation box 166. The manual pilot valve is opened and closed. When the fire hydrant valve opening / closing lever 168 is opened, the manual pilot valve is opened, and the fire hydrant valves arranged separately can be opened remotely.

  Pilot pipes 136a and 136b are connected to the manual pilot valve provided in the operation box 166 from the lower side. The pilot pipes 136a and 136b are connected to a manual pilot valve in the operation box 166 through a pipe duct 165 arranged on the right side of the guide pipe 156 from the lower side.

  As shown in the plane of FIG. 18 (B), the hose 160 that is internally wound in the hose accommodating portion 150 is wound in a slightly curved state inside the guide pipe 156 and the piping duct 165. For this reason, the parallel line hose portion on the front side of the hose 160 is deformed inward to have a shape close to a substantially gourd shape, and due to this deformation, the parallel line hose portion of the hose 160 is repelled to spread outward. It is possible to reliably prevent the parallel line portion of the hose 160 that has been overlapped and wound inside by collapsing inside due to the occurrence and the pressing force against the inner wall side of the housing.

  Further, when the door is opened and the hose 160 is pulled out, in addition to the force for pushing out the hose 160 due to the deformation of the radius portion of the hose 160, the parallel line portion of the hose 160 is also deformed by the hose guide structure. A force for pushing the hose 160 by force is generated, and the hose pulling force can be reduced.

[Configuration of water discharge control mechanism]
FIG. 19 is an explanatory view showing the water discharge control mechanism in a section viewed from the road surface side together with the fire hydrant storage box on the side of the supervisor passage.

(Configuration of water discharge control mechanism)
As shown in FIG. 19, a water discharge control mechanism storage portion 120 is disposed in the management passage 20 below the internal space of the supervisor passage 14 where the fire hydrant storage box 30 is disposed.

  The water discharge control mechanism storage unit 120 is provided with a pressure-opening type fire hydrant valve 122, an automatic pressure control valve 124, and a foam mixer 126 as valves constituting the water discharge control mechanism.

  A branch pipe 24 a branched from the water supply main pipe 24 is connected to the primary side of the fire hydrant valve 122, and the automatic pressure regulating valve 124 and the foam mixer 126 are connected to the fire hydrant valve 122. A pipe from the foam stock solution tank 128 is connected to the foam mixer 126, and foam fire-extinguishing water in which the foam stock solution is mixed with fire-extinguishing water flowing through the foam mixer 126 at a predetermined ratio is supplied to the foam mixer 126 through the water supply pipe 25. The hose 160 is supplied.

  The fire hydrant valve 122 is a valve opening / closing mechanism for releasing pressure, and a piston 132 is slidably provided in the cylinder chamber 130. A valve body 135 is connected to the piston 132 by a piston rod. A spring 134 is incorporated in the.

  The fire hydrant valve 122 is closed in a normal state. The fire hydrant valve 122 is closed by discharging fire water from the cylinder chamber 130 to reduce the pilot pressure to zero, pushing the piston 132 in the closing direction by the spring 134, and bringing the valve element 135 into contact with the valve seat. The secondary side and secondary side flow paths are closed to a closed state.

  In order to open the fire hydrant valve 122, water for fire extinguishing is supplied to the cylinder chamber 130 to increase the pilot pressure, so that the piston 132 is stroked outward against the spring 134, and the valve element 135 is separated from the valve seat. Then, the primary side and the secondary side are made to communicate with each other.

  In order to open the fire hydrant valve 122 by remote control, a manual pilot valve 140 that is opened and closed by a fire hydrant valve opening / closing lever 168 is provided in the operation box 166 of the fire hydrant storage box 30.

  The pilot pipe 136a drawn from the branch pipe 24a is connected to the primary side of the manual pilot valve 140, and the secondary side of the manual pilot valve 140 is connected to the cylinder chamber 130 of the fire hydrant valve 122 by the pilot pipe 136b. .

  In the present embodiment, the manual pilot valve 140 is directly opened and closed by the fire hydrant valve opening / closing lever 168. However, the manual pilot valve 140 is disposed at a different location in the fire hydrant storage box 30, and the wire link It may be opened and closed remotely.

  In addition, a reporting device panel 170 is provided at the upper left of the front surface of the fire hydrant storage box 30. The notification device panel 170 is provided with a red indicator lamp 172, a transmitter 174, a response lamp 176, and a telephone jack 178. The red indicator lamp 172 is always turned on so that the installation location of the fire hydrant equipment can be seen from a distance. In the event of a fire, when the push button switch is turned on by pressing the transmitter 174, a transmission signal is transmitted to the fire receiver in the monitoring room, a fire alarm is issued, and a response signal is sent from the fire receiver accordingly, and a response lamp 176 is turned on, and the red indicator lamp 172 blinks.

(Operation of fire hydrant equipment)
When a vehicle accident involving a fire occurs in the tunnel 10, the user goes to the hydrant facility 16 near the fire occurrence place and presses the transmitter 174 of the reporting device panel 170 to send a fire notification signal to the disaster prevention reception board of the monitoring center. , The confirmation response signal is received from the disaster prevention reception board, the response lamp 176 is turned on, and the red indicator lamp 172 is flashed to confirm the completion of the report to the monitoring center side.

  Subsequently, in order to perform fire extinguishing work from the road 15 side, when the front opening handle 34 of the fire hydrant storage box 30 is operated to release the lock, the front door 32 slides and opens, and the upper door 36 is moved forward. When opened, the foam nozzle 162 that is locked to the back surface of the upper door 36 that has been opened forward is exposed to the top.

  The user removes the foam nozzle 162 from the nozzle holder 164 and pulls out the hose 160. The hose 160 pulled out at this time is smoothly pulled out while sliding on the guide pipes 154 and 156.

  When the vehicle is stopped in front of the fire hydrant storage box 30 and cannot be operated from the front side, the user operates from the supervisor passage 14.

  Subsequently, when the fire hydrant valve opening / closing lever 168 provided in the operation box 166 disposed on the right side of the opening space of the fire hydrant storage box 30 is operated in the opening direction, the manual pilot valve 140 is opened, and the fire from the branch pipe 24a is opened. Water is supplied to the cylinder chamber 130 of the fire hydrant valve 122 through the pilot pipe 136a, the manual pilot valve 140, and the pilot pipe 136b, the pilot pressure is increased, the piston 132 is stroked outward against the spring 134, and the valve The fire hydrant valve 122 is opened by separating the body 135 from the valve seat.

  When the fire hydrant valve 122 is opened, fire water from the water supply main 24 flows from the water supply pipe 25 to the hose 160 of the fire hydrant storage box 30 via the fire hydrant valve 122, the automatic pressure regulating valve 124, and the foam mixer 126. When the foam stock solution is mixed at a predetermined ratio by the mixer 126 and water for foam extinguishing is released from the foam nozzle 162 of the hose 160 drawn out from the fire hydrant storage box 30, the fire extinguishing foam formed by entraining air is released. Is done.

  In addition, when the fire hydrant valve 122 is opened, it is necessary to send the pump activation signal to the fire pump equipment to activate it, so the pressure switch 145 that detects and turns on the water pressure is connected to the secondary side of the fire hydrant valve 122. Provided. Instead of the pressure switch 145, the operation box 166 may be provided with a fire hydrant valve opening detection switch that is turned on by opening the fire hydrant valve opening / closing lever 168 and transmits a pump activation signal.

  When the fire is extinguished and the extinguishing operation is completed, the hydrant valve opening / closing lever 168 is returned to the closed position, and the manual pilot valve 140 is closed. Subsequently, the water in the cylinder chamber 130 is slowly drained through the orifice 146, the pilot pressure is reduced to zero, the piston 132 is pushed back by the spring 134 and brought into contact with the valve seat, and the fire hydrant valve 122 is thereby closed. Thus, the discharge of fire extinguishing bubbles is stopped.

  Further, when checking the water discharge control mechanism, when the person in charge goes to the water discharge control mechanism storage unit 120 disposed in the management passage 20 and opens the manual release valve 142, the water for extinguishing water is supplied to the cylinder chamber 130. The pilot pressure is increased, and the fire hydrant valve 122 is opened to allow a predetermined water discharge test to be performed. In this case, the manual drain valve 144 may be opened to close the fire hydrant valve 122.

[Modification of the present invention]
(First and second opening / closing mechanism)
The first and second opening / closing mechanisms shown in the above embodiment are merely examples, and the front door is unlocked by sliding the upper door forward, and the front door is held in the closed position. An appropriate mechanism is included as long as the upper door is opened rearward.

(Foam hydrant equipment)
Although the said embodiment has taken the foam fire hydrant equipment which discharges a fire-fighting foam as an example, it is not limited to this, It is good also as a fire hydrant equipment which discharges water for fire extinguishing.

(Other)
The present invention includes appropriate modifications that do not impair the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

10: Tunnel 12: Tunnel wall 14: Monitor passage 15: Road 16: Fire hydrant equipment 18: Floor slab 20: Management passage 22: Duct 24: Water supply main 24a: Branch pipe 25: Water supply pipe 28: Housing 30: Fire hydrant storage box 28: Housing 31: Front door opening 32: Front door 33: Upper door opening 34: Front opening handle 34a, 38a: Handle body 35: Fixed door 36: Upper door 38: Rear opening handle 40: Gas spring 42a , 42b: Rod rod 44a, 44b: Rod connecting portion 46a, 46b: Rod mounting shaft 48a, 48b: U-shaped link 50a, 50b: Hinge 52a, 52b: Hinge guide member 54a, 54b: Coil spring 56a, 56b: Hinge receiving member 58a, 58b: Lock piece 60a: Front door hanger 60b: Upper door hanger 62a, 62b: Hooks 64a, 64 : Support metal fittings 65a, 65b: Hook claws 66a, 66b: Screw pins 68a, 68b: Winding spring 100: Front door push-up mechanism 108: Magnetic adsorption mechanism 120: Water discharge control mechanism storage 122: Fire hydrant valve 124: Automatic pressure regulating valve 126: Foam mixer 128: Foam stock solution tank 130: Cylinder chamber 132: Piston 134: Spring 135: Valve body 136a, 136b: Pilot pipe 140: Manual pilot valve 142: Manual release valve 144: Manual drain valve 145: Pressure switch 146: Orifice

Claims (10)

In a fire hydrant storage box in which a hose with a nozzle is housed inside a housing embedded in a surveillance passage along the wall of the tunnel,
A front door that is slidably opened and closed in the vertical direction at the front door opening formed on the front surface of the housing on the road side;
The upper door opening formed on the upper surface of the housing, which is on the side of the supervisor passage surface, is pivotally supported so that it can be opened forward with the rear edge of the door as an axis, and is supported so that it can be opened with the front edge of the door as an axis. The upper door,
The front door is slid open by releasing the lock by operating the front opening handle, the upper door is opened forward, and when the upper door is opened rearward, the front edge side of the upper door is pivotally supported so as to be freely opened and closed. 1 opening and closing mechanism;
A second opening / closing mechanism that pivots the rear edge of the upper door so that it can be opened and closed when the upper door is opened rearward by releasing the lock by operating the rear opening handle;
A fire hydrant storage box characterized by that.
In the fire hydrant storage box according to claim 1,
The first opening / closing mechanism includes
A pair of first rod rods connected to both sides of a handle body of a front opening handle disposed at the front edge side center of the front door, and pulled in by operation of the front opening handle;
Each of the pair of first rod rods is connected to each of the ends of the first rod rods via a first rod coupling portion in which a first U-shaped link member opened in a U-shape on the horizontal plane and rearward is fixed to the first rod mounting shaft in the axial direction. A first hinge member;
A first hinge receiving member provided with a shaft hole into which the first hinge member can be inserted and retracted;
A first biasing member that biases the first hinge member toward the first hinge receiving member;
Arranged on the rear side of the front door, the front door is held in the closed position by locking the first hook member to the first rod mounting shaft side of the first rod connecting portion when the front opening handle is not operated. Front door hanger part,
And when the first rod rod is retracted by operating the front opening handle, the first U-shaped link member of the first rod connecting portion is retracted and moved to the position of the first hook member. The fire hydrant storage box is configured to unlock the first hook member to open the front door by sliding and to open the upper door forward.
In the fire hydrant storage box according to claim 1,
The second opening / closing mechanism includes:
A pair of second rod rods connected to both sides of a handle body of a rear opening handle disposed at the rear edge side center of the upper door, and pulled in by operation of the rear opening handle;
Each of the pair of second rod rods is connected to each of the ends of the pair of second rod rods via a second rod connecting portion in which a second U-shaped link member opened in a U shape in a horizontal plane on the second rod mounting shaft is fixed in the axial direction. A second hinge member;
A second hinge receiving member having a shaft hole into which the second hinge member can be freely inserted and retracted;
A second biasing member that biases the second hinge member toward the second hinge receiving member;
After being disposed on the rear surface of the housing and holding the rear door in the closed position by locking the second hook member to the second rod mounting shaft side of the second rod connecting portion in a non-operating state of the rear opening handle. Door hanger part,
And when the second rod rod is retracted by operating the rear opening handle, the second U-shaped link member of the second rod connecting portion is retracted and moved to the position of the second hook member. The fire hydrant storage box is configured to release the locking of the second hook member to open the upper door rearward.
In the fire hydrant storage box according to claim 2,
A first lock piece is formed by extending a link piece of the first U-shaped link member fixed subsequent to the first rod mounting shaft in the first opening / closing mechanism to form a first lock piece, and the upper door on the front edge side. When the first hinge member is opened rearward with the axial center line as the axis, the movement of the first rod connecting portion in the rod retracting direction is caused by the contact of the first lock piece with the first hook member. A fire hydrant storage box, characterized in that the front opening handle is restricted by being regulated.
In the fire hydrant storage box according to claim 3,
A second lock piece is formed by extending a link piece of the second U-shaped link member fixed following the second rod attachment shaft in the second opening / closing mechanism, and the upper door is formed on the rear edge side. When the second hinge member is stood up and opened with the second hinge member as an axis, the movement of the second rod connecting portion in the rod retracting direction is caused by the contact of the second lock piece with the second hook member. A fire hydrant storage box, characterized in that the front opening handle is restricted by being regulated.
In the fire hydrant storage box according to claim 1,
A fire hydrant storage box provided with a shaft load reducing mechanism for reducing a load applied to a shaft on a door front edge side in a closed state of the upper door by locking the first opening / closing mechanism.
In the fire hydrant storage box according to claim 6,
As the axial load reducing mechanism, when the upper door is closed by the locking of the first opening / closing mechanism, a predetermined lifting force is applied to the upper door, and the lifting force is released when the locking of the upper door is released. A fire hydrant storage box provided with a front door push-up mechanism that slides and opens the front door against the above.
In the fire hydrant storage box according to claim 6,
When the upper door is unlocked and the upper door is unlocked when the upper door is closed by locking the first opening / closing mechanism as the axial load reducing mechanism, and the upper door is unlocked A fire hydrant storage box, further comprising a magnetic adsorption mechanism that slides and opens the front door against the magnetic adsorption.
In the fire hydrant storage box according to any one of claims 6 to 8,
A fire hydrant storage box, wherein a door opening urging mechanism including an urging member for assisting an opening force for opening the upper door forward and backward is provided between the casings of the upper door.
  The fire hydrant storage box according to claim 9, wherein the biasing member is a gas spring.

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