JP7792237B2 - Fire hydrant equipment - Google Patents

Description

The present invention relates to a fire hydrant device installed in a tunnel and housing fire hoses, fire extinguishers, etc.

Traditionally, fire hydrants have been installed as emergency tunnel equipment in tunnels on expressways and expressways. A fire hydrant device consists of a casing with a hydrant door (tilting door) that houses a fire hose with a nozzle attached to the end and valves, including a hydrant valve, in a hydrant storage compartment. The fire extinguisher storage compartment, which is equipped with a fire extinguisher door, houses, for example, two fire extinguishers. Furthermore, fire hydrant devices are generally installed by embedding them into the tunnel wall, cutting out boxes at intervals of, for example, 50 meters, along the length of the tunnel.

However, in tunnels constructed using methods such as shield tunneling, the structure of the tunnel body makes it difficult to cut out a box in the tunnel wall and install a fire hydrant device by embedding it there, due to the cost and effort involved, so the fire hydrant must be installed exposed in the guard passage.

In addition, in order to install a fire hydrant device on a tunnel wall without removing the box, a wall-mounted structure has been proposed in which the fire hydrant device is attached and fixed to a mount installed on the tunnel wall.In this case, the mount is composed of a main support part fixed to the wall and a position-maintaining member that maintains the position of the fire hydrant device (Patent Document 2).

In addition, wall-mounted fire hydrant devices have issues such as the time and effort required to install them on the tunnel wall, so it is being considered to use a so-called stationary structure, in which the fire hydrant device is attached and fixed in an exposed state to a stand installed on the road surface of the guard passage, which is easier to install.

JP 2016-055073 A Japanese Patent Application Laid-Open No. 2020-078429

By the way, the guard passages, which are constructed along the tunnel walls at a higher level than the road, are also used as evacuation routes in emergencies such as fires caused by vehicle accidents. When fire hydrant devices are placed exposed above the guard passages using wall-mounted or freestanding structures, they are made as thin as possible so as not to obstruct passage along the guard passages.

However, even with efforts to make the hydrant devices thinner, they are still installed in a state where they protrude (stick out) into the guard passage, and if the guard passage is used as an evacuation route, there remains the possibility that evacuees passing through in a hurry to escape may bump into the corners of the hydrant device that protrude into the guard passage, causing them to fall or be injured.

The present invention aims to provide a fire hydrant device that can ensure a safe evacuation route, even for fire hydrant devices installed exposed on guard passages or tunnel walls.

(Fire hydrant device of the first invention)
The present invention provides a fire hydrant device having a housing installed at a predetermined height above the road surface of a watchman passage provided along the wall surface of a tunnel having a road, in proximity to or in contact with the tunnel wall surface,
A cover housing having a curved surface formed at the corner where the front surface of the cover and the side surface of the cover meet in the height direction is arranged on the side of the housing, and the cover housing is arranged on both sides of the housing, on the fire hydrant equipment storage side and the fire extinguisher storage side.

(Cover door)
The cover housing is provided with a lockable cover door that can be opened and closed freely. As an example, the cover door is an L-shaped door body that extends from the front surface to the side surface of the door, and a curved surface is formed at the corner where the front surface and the side surface meet, and the cover door is supported so as to be able to be opened and closed freely around an axis in the height direction of the front end or side end of the door opening that extends from the front surface to the side surface of the cover housing.

(Water supply piping is located inside the cover housing)
The cover housing, which is arranged on the fire hydrant device housing side of the housing, has a water supply pipe arranged inside that is drawn into the housing.

(Accessories are stored inside the cover housing)
The cover housing, located on the fire extinguisher housing side of the housing, can accommodate predetermined equipment, including spare equipment for repair and replacement, tools, work materials, and inspection jigs.

(Text displayed on the side of the cover)
The cover housing placed on the fire hydrant equipment storage side of the housing has the word "fire hydrant" written vertically on the side, and the cover housing placed on the fire extinguisher storage side of the housing has the word "fire extinguisher" written vertically on the side.

(Fire hydrant device of the second invention)
The present invention provides a fire hydrant device having a housing installed at a predetermined height above the road surface of a watchman passage provided along the wall surface of a tunnel having a road, in proximity to or in contact with the tunnel wall surface,
A cushioning member that covers the corner with a curved surface is placed at the corner where the front and side of the housing meet in the vertical direction, and the cushioning member is placed on both sides of the housing, on the side that houses the fire hydrant equipment and on the side that houses the fire extinguisher.

(Cushioning material covering the side of the housing)
The buffer members are arranged to cover the corners as well as the side surfaces of the housing.

(Text displayed on the cushioning material on the side of the housing)
The buffer material placed on the fire hydrant storage side of the housing has the word "fire hydrant" written vertically on its side, and the buffer material placed on the fire extinguisher storage side of the housing has the word "fire extinguisher" written vertically on its side.

(Fire hydrant device of the third invention)
The present invention provides a fire hydrant device having a housing installed at a predetermined height above the road surface of a watchman passage provided along the wall surface of a tunnel having a road, in proximity to or in contact with the tunnel wall surface,
An identification member that can identify the presence of the corner is placed at or near the corner where the front and side of the housing meet in the vertical direction, and the identification member is placed on both sides of the housing, on the fire hydrant equipment storage side and the fire extinguisher storage side.

(Light Emission Driving of Identification Member)
The identification member has a light-emitting portion that lights up, flashes, or blinks when a predetermined condition is met.

(Conditions for light emission drive are met)
The predetermined condition being satisfied includes a case where a fire occurs, a case where a fire notification operation is performed, or a case where the door of the fire hydrant device storage section of the housing is opened.

(Text displayed on the side of the case)
In the fire hydrant device of the third invention, the housing has the words "fire hydrant" written vertically on the side on which the fire hydrant equipment is stored, and the words "fire extinguisher" written vertically on the side on which the fire extinguisher is stored.

(Installation and fixation of the enclosure on a stand above the guard passage)
In the fire hydrant devices of the first to third aspects of the present invention, the housing is attached and fixed to the top of a stand that is installed on the road surface of the guard passageway, close to the tunnel wall.

(Buffering members for corners of the stand)
At the corner where the front and side surfaces of the stand meet in the height direction, a buffer member is arranged to cover the corner with a curved surface.

(Installation and fixing of the enclosure on a stand on the tunnel wall)
In the fire hydrant devices of the first to third aspects of the present invention, the housing is attached and fixed to the front part, facing the road, of a frame installed on the tunnel wall above the road surface of the guard passage.

(Effects of the fire hydrant device of the first invention)
In the fire hydrant device of the first invention, a cover housing is arranged on the side of the housing, with a curved surface formed at the corner where the front cover and the side cover meet in the vertical direction.By placing the cover housing on both the fire hydrant equipment storage side and the fire extinguisher storage side of the housing, the corner that protrudes into the guard passage has a curved surface, which reduces the impact when an evacuee passing in front of the fire hydrant device hits the corner, making it possible to ensure a safe evacuation route without falling or getting injured.

(Effect of the cover door)
The cover housing also has a lockable cover door that can be opened and closed freely. As an example, the cover door is an L-shaped door body that extends from the front of the door to the side of the door, and a curved surface is formed at the corner where the front of the door and the side of the door meet.The cover door is supported so that it can be opened and closed freely with the height direction of the front end or side end of the door opening that extends from the front of the cover housing to the side as an axis, so that the internal space of the cover housing can be used by opening the cover door.

(Effect of placing the water supply pipe inside the cover housing)
Furthermore, the cover housing arranged on the fire hydrant equipment storage side has the water supply pipe drawn into the housing arranged inside, thereby hiding the water supply pipe drawing-in part to improve appearance and also making it possible to prevent deterioration due to dirt on the water supply pipe drawing-in part.

(Effect of storing fixtures inside the cover housing)
In addition, the cover housing placed on the fire extinguisher storage side can store specified equipment inside, and the equipment that can be stored in the cover housing includes equipment used for maintaining and managing the fire hydrant device, such as spare equipment for repair and replacement, tools, work materials, and inspection jigs, so that the equipment needed at the installation location of the fire hydrant device can be removed from the cover housing and used.

(Effect of the text on the side of the cover)
In addition, the cover housing placed on the fire hydrant equipment storage side has the word "fire hydrant" written vertically on the side, and the cover housing placed on the fire extinguisher storage side has the word "fire extinguisher" written vertically on the side, so in addition to the emergency equipment name being visible from the front with the words "fire hydrant" and "fire extinguisher" written horizontally on the front of the conventional housing, the emergency equipment name can also be seen from the side.

(Effects of the fire hydrant device of the second invention)
In the fire hydrant device of the second invention, a cushioning member that covers the corner with a curved surface is placed at the corner where the front and side of the housing meet in the vertical direction, and the cushioning member is placed on both sides of the housing, on the side that houses the fire hydrant equipment and the side that houses the fire extinguisher, thereby reducing the impact when an evacuee passing in front of the fire hydrant device hits the corner, and making it possible to ensure a safe evacuation route without falling or getting injured.

(Effect of the cushioning material covering the side of the housing)
In addition, the cushioning material is positioned to cover the sides of the housing in addition to the corners, thereby protecting the sides of the housing from collisions with foreign objects thrown up by vehicles passing through the tunnel, preventing dirt and damage, and improving durability.

(Effect of the text displayed on the cushioning material on the side of the housing)
In addition, the buffer material placed on the fire hydrant equipment storage side has the word "fire hydrant" written vertically on its side, and the buffer material placed on the fire extinguisher storage side has the word "fire extinguisher" written vertically on its side, making the name of the emergency equipment visible from the side as well as from the front, where the words "fire hydrant" and "fire extinguisher" are written horizontally on the front of the conventional housing.

(Effects of the fire hydrant device of the third invention)
In the fire hydrant device of the third invention, an identification member that can identify the presence of a corner is placed at or near the corner where the front and side of the housing meet in the vertical direction, and the identification member is placed on both sides of the housing, on the side that houses the fire hydrant equipment and the side that houses the fire extinguisher.As a result, evacuees who are trying to pass in front of the fire hydrant device will notice the presence of the corner by the identification member just before the fire hydrant device and will be able to pass in front of the fire hydrant device without hitting the corner, thereby ensuring a safe evacuation route.

(Effect of driving the identification member to emit light)
The identification member is equipped with an illuminating part that lights up, flashes or blinks when a predetermined condition is met, for example, when a fire breaks out, when a fire report operation is performed, or when the hydrant door is opened, thereby making evacuees who are passing in front of the hydrant device strongly aware of the presence of a corner; the light emitted by the identification member allows evacuees to reliably notice the presence of a corner in front of the hydrant device, and enables them to pass in front of the hydrant device without hitting the corner, thereby ensuring a safe evacuation route.

(Effect of the text on the side of the case)
Furthermore, in the fire hydrant device of the third invention, the housing has the word "fire hydrant" written vertically on the side on which the fire hydrant equipment is stored, and the word "fire extinguisher" written vertically on the side on which the fire extinguisher is stored, so that in addition to the emergency equipment name being visible from the front using the words "fire hydrant" and "fire extinguisher" written horizontally on the front of the conventional housing, the name of the emergency equipment can also be seen from the side.

(Effect of fixing the enclosure to the stand above the guard passage)
Furthermore, in the fire hydrant devices of the first to third inventions, the housing is attached and fixed to the top of a stand installed on the road surface of the monitor's passage, close to the tunnel wall, thereby reducing the amount of protrusion into the monitor's passage, and also making it possible to simply and easily set the height of the transmitter installed in the fire hydrant device within the legally specified height range and at a height that can be operated appropriately from the user's standing position.

(Effect of cushioning materials at the corners of the frame)
Furthermore, when the housing is attached and fixed to a stand installed on the road surface of the guard passage, a cushioning member that covers the corner with a curved surface is placed at the corner where the front and side of the stand meet in the vertical direction. This reduces the impact when the feet of an evacuee passing in front of the fire hydrant device hit the corner of the stand, making it possible to ensure a safe evacuation route without the evacuee falling or getting injured.

(Effect of fixing the enclosure to the stand on the tunnel wall)
In addition, in the fire hydrant devices of the first to third inventions, the housing is attached and fixed to the front part, on the road side, of the stand installed on the tunnel wall above the road surface of the monitor's passage, thereby reducing the amount of protrusion into the monitor's passage and making it possible to simply and easily set the height of the transmitter installed in the fire hydrant device within the legally specified height range and at a height that can be operated appropriately from the user's standing position.

FIG. 1 is an explanatory diagram showing a first embodiment of a fire hydrant device installed on a watchman passage. FIG. 2 is an explanatory diagram showing the installation height of the fire hydrant device on a stand. FIG. 2 is a perspective view showing a stand for mounting and fixing the fire hydrant device. This is an explanatory diagram showing the internal structure of the fire hydrant device from the front with the fire hydrant door and maintenance door open. FIG. 2 is an explanatory diagram showing the internal structure of the fire hydrant device in plan view. FIG. 2 is an explanatory side view showing the internal structure of the fire hydrant device. FIG. 2 is a perspective view showing the right side of the housing on which the cover housing is disposed. FIG. 2 is a perspective view showing the left side of the housing on which the cover housing is disposed. FIG. 10 is an explanatory diagram showing a second embodiment of a fire hydrant device in which a buffer member is arranged at the corner of the housing. FIG. 10 is an explanatory diagram showing the internal structure of the fire hydrant device of FIG. 9 from the front with the fire hydrant door and maintenance door open. FIG. 2 is a perspective view showing the right side of the housing on which the buffer member is arranged. FIG. 10 is a perspective view showing a third embodiment of a fire hydrant device in which an identification member is arranged at a corner of the housing. FIG. 10 is a block diagram showing an embodiment of a light emission control unit that drives an identification member to emit light.

Embodiments of a fire hydrant device according to the present invention are described in detail below with reference to the drawings. Note that the present invention is not limited to the following embodiments.

[Basic Concept of the Embodiment]
First, a basic concept of the embodiment will be described. The embodiment generally relates to a fire hydrant device in which a fire hydrant device, an electrical device, a terminal box, and a fire extinguisher are arranged in a housing.

Here, a "fire hydrant device" refers to a type of emergency equipment installed in areas subject to firefighting, such as tunnels on expressways and motorways. It is a housing installed in the area subject to firefighting, in which fire hydrant equipment such as fire hoses, electrical equipment such as red indicator lights and transmitters on electrical doors, terminal boxes, and fire extinguishers are placed or housed, and the concept includes fire hydrant facilities in which fire hydrant devices are installed.

The fire hydrant device is installed in an exposed state at a predetermined height above the road surface of the guard passageway, which is installed along the interior wall of a tunnel containing a road. Here, "predetermined height" refers to a height at which the fire hydrant device can be installed close to or in contact with the tunnel wall surface. For example, the hydrant device can be installed at a predetermined height by attaching and fixing the housing to the top of a platform installed on the road surface of the guard passageway, or by attaching and fixing the housing to the front part of a platform installed on the tunnel wall surface above the road surface of the guard passageway, facing the road.

Furthermore, "frame" refers to a structure that supports an object using pillars, beams, etc., and although specific examples are not shown, it includes concepts such as a support base, foundation, base, pedestal, and base.

The fire hydrant device of this embodiment can be divided into first to third embodiments corresponding to the first to third inventions.

In the first embodiment of the fire hydrant device corresponding to the first invention, a cover housing is arranged on the side of the housing, with a curved surface formed at the corner where the front cover and side cover meet in the height direction, and the cover housing is arranged on both the fire hydrant device housing side and the fire extinguisher housing side of the housing.

Here, the "cover housing" refers to an auxiliary housing that is positioned to eliminate the corners where the front and side of the original housing of the hydrant device, which houses the hydrant equipment, fire extinguisher, and electrical equipment, meet in the vertical direction. By making the corners of the cover housing that protrude into the guard passage curved, the impact when evacuees passing in front of the hydrant device hit the corners is reduced, ensuring a safe evacuation route.

The cover body also has a lockable cover door that can be opened and closed freely, and the provision of the cover door makes it possible to use the internal space of the cover housing.

The cover door may have any shape, placement, or structure, but as an example, it is an L-shaped door extending from the front to the side of the door, with a curved surface formed at the corner where the front and side of the door meet, and is supported so that it can be opened and closed freely, with the height direction of the front or side edge of the door opening extending from the front to the side of the cover housing as an axis.

The cover housing located on the fire hydrant equipment storage side has a water supply pipe inside that is drawn into the housing from below the monitor's passage and connected to it.

The cover housing located on the fire extinguisher storage side has its interior used as an equipment storage area, and is used to store a variety of equipment, including spare equipment for repairing and replacing valves and electrical equipment, tools such as screwdrivers and wrenches, work materials such as helmets and gloves, and inspection tools used in water discharge tests.

In addition, the cover housing placed on the fire hydrant equipment storage side has the word "fire hydrant" written vertically on the side, and the cover housing placed on the fire extinguisher storage side has the word "fire extinguisher" written vertically on the side, making it possible to see the name of the emergency equipment from the side.

In the second embodiment of the fire hydrant device corresponding to the second invention, a cushioning member is placed at the corner where the front and side of the housing meet in the height direction, covering the corner with a curved surface, and the cushioning member is placed on both the fire hydrant device housing side and the fire extinguisher housing side of the housing.

Here, a "buffer member" refers to a component that is positioned with a curved surface to cover the corners of the housing that protrude into the guard passage. It is made of a material such as hard rubber or synthetic resin, and reduces the impact when an evacuee passing in front of the fire hydrant device hits the corner, ensuring a safe evacuation route.

In addition, the cushioning members, which are positioned to cover the curved corners of the housing that protrude into the guard passage, are also positioned to cover the sides of the housing, protecting the sides from collisions with foreign objects and damage.

In addition, the buffer material placed on the fire hydrant storage side has the word "fire hydrant" written vertically on the side, and the buffer material placed on the fire extinguisher storage side has the word "fire extinguisher" written vertically on the side, making it possible to see the name of the emergency equipment from the side.

In addition, the stand that mounts and secures the housing above the guard passageway also has cushioning members that cover the corners with curved surfaces at the corners where the front and side of the stand meet in the height direction.

In the third embodiment of the fire hydrant device corresponding to the third invention, an identification member that can identify the presence of the corner is placed at or near the corner where the front and side of the housing meet in the vertical direction, and the identification member is placed on both the fire hydrant device housing side and the fire extinguisher housing side of the housing.

Here, an "identification member" is a member that makes the corner conspicuous and visible, includes a conspicuous color or pattern, and is further equipped with a light-emitting element that lights up or flashes when certain conditions are met. This notifies evacuees in front of the fire hydrant device of the presence of a corner protruding into the guard passage, allowing evacuees passing in front of the fire hydrant device to avoid hitting the corner.

Furthermore, the specified conditions for driving the light-emitting portion of the identification member to emit light are arbitrary, but include, for example, when a fire breaks out (a fire is detected by a fire detector, etc.), when a fire notification operation is performed using a transmitter, or when a fire hydrant door is opened.

Furthermore, in a fire hydrant device with an identification member provided at or near the corner of the casing, the word "fire hydrant" is displayed vertically on the side of the casing that houses the fire hydrant equipment, and the word "fire extinguisher" is displayed vertically on the side that houses the fire extinguisher, making it possible to see the name of the emergency equipment from the side.

Specific embodiments are described below. In the specific embodiments described below, the fire hydrant device is mounted and fixed on a stand installed above the guard's passage inside the tunnel. The descriptions are divided into a first embodiment of the fire hydrant device in which a cover housing is placed on the side of the housing, a second embodiment in which a cushioning member is placed that covers the corners of the housing with a curved surface, and a third embodiment in which an identification member is placed on or near the corners of the housing.

[Specific Contents of the Embodiment]
The fire hydrant equipment will be explained in more detail below.
a. First embodiment of fire hydrant device a1. Overview of the fire hydrant device a2. Installation of the fire hydrant device a3. Installation height and thinning of the fire hydrant device a4. Configuration corresponding to thinning of the fire hydrant device a5. Fire hydrant device stand b. Structure of the casing and cover casing of the fire hydrant device b1. Structure of the first casing b2. Cover casing on the right side of the first casing b3. Structure of the second casing b4. Cover casing on the left side of the second casing c. Second embodiment of the fire hydrant device d. Third embodiment of the fire hydrant device d1. Identification member at the corner of the casing d2. Embodiment of the light-emission control unit d3. Other embodiments of the light-emission control unit e. Modified examples of the present invention

[a. First embodiment of fire hydrant device]
A first embodiment of the fire hydrant device in which a cover housing is arranged on the side surface of the housing will be described in more detail.

(a1. Overview of fire hydrant equipment)
The outline of the fire hydrant equipment will be explained in more detail below. Figure 1 is an explanatory diagram showing the installation of fire hydrant equipment inside a tunnel, with Figure 1(A) showing the installation of the fire hydrant equipment as seen from the cross section of the tunnel, and Figure 1(B) showing the installation of the fire hydrant equipment as seen from the direction of the tunnel wall.

As shown in FIG. 1(B), the housing of the fire hydrant device 10 of this embodiment is divided into a first housing 11a and a second housing 11b.

A decorative frame 13a is attached to the front of the first housing 11a. The door opening of the decorative frame 13a is divided into upper and lower halves, with a fire hydrant door (forward-tilting door) 12 that opens downward on hinges 12a located at the lower part of the door opening, and a maintenance door 14 that opens upward on hinges 14a located at the upper part of the door opening. The fire hydrant equipment storage compartment inside the first housing 11a stores the required fire hydrant equipment, including fire hoses and valves such as fire hydrant valves.

A cover housing 32 is disposed on the right side of the first housing 11a. The cover housing 32 is provided with a cover door 32a, which is arranged to be able to open laterally to the left (clockwise) using hinges 32b, with the cover door 32a pivoting on the vertical direction (height direction) of the front end of the door opening 32d . The interior of the cover housing 32 serves as a storage space for a water supply pipe 48 that is drawn into the first housing 11a through the stand 30. The cover door 32a may also be arranged to be able to open laterally to the right (counterclockwise) with the vertical direction of the side end of the door opening 32d as an axis.

A decorative frame 13b is attached to the front of the second housing 11b. The decorative frame 13b has two door openings. The right door opening houses an electrical door 18 that opens sideways to the right on hinge 18a, and the left door opens sideways to the left on hinge 20a, providing access to the internal terminal boxes 26a and 26b. The electrical door 18 is equipped with electrical equipment such as a red indicator light 22, a transmitter 24, and an answer lamp 25, and is also equipped with a telephone jack 28 on the inside.

The red indicator light 22 remains lit at all times, allowing the location of the fire hydrant device 10 to be confirmed from a distance. When a fire breaks out (a fire is detected by a fire detector, etc.) and the transmitter 24 is pressed to turn on the push button switch, a transmission signal is sent, and a fire alarm is output from a disaster prevention receiving panel installed in an electrical room, etc., which receives this signal. The fire hydrant device 10 receives a response signal from the disaster prevention receiving panel, causing the red indicator light 22 to flash and the response lamp 25 to light up.

In addition, a fire extinguisher door 16 that opens sideways to the left on hinges 16a is provided in the door opening on the left side of the decorative frame 13b, and for example, two fire extinguishers can be stored inside the fire extinguisher door 16. In addition, a viewing window 17 is provided below the fire extinguisher door 16, allowing the presence or absence of a fire extinguisher to be confirmed from outside.

A cover housing 34 is arranged on the left side of the second housing 11b. A cover door 34a is provided on the cover housing 34, and the cover door 34a is arranged so that it can be opened sideways to the right (counterclockwise) using hinges 34b, with the vertical direction (height direction) of the front edge of the door opening as an axis. The interior of the cover housing 34 is used, for example, as a storage area for equipment used in the operation, management, and maintenance of emergency equipment, including the fire hydrant device 10. The cover door 34a may also be arranged so that it can be opened sideways to the left (clockwise) with the vertical direction of the side edge of the door opening as an axis.

(a2. Installation of fire hydrant devices)
The installation of fire hydrants in tunnels will be explained in more detail below. A road 46 is constructed in the longitudinal direction (left-right direction) of the tunnel below the cylindrical (circular cross section) tunnel body constructed using the shield tunneling method, and a guard passage 35 is constructed at a predetermined height above the road 46 below the tunnel wall 26 along the rear side of the road 46.

Since it is difficult to cut out a box from the tunnel wall 26 created by the shield construction method to install the fire hydrant device 10, the mount 30 is installed close to the tunnel wall 26 on the road surface of the monitor's passage 35, and the connected first and second housings 11a and 11b are attached and fixed to the mount 30, thereby installing the fire hydrant device 10. Here, the height H1 of the mount 30 is set so that the height from the road surface of the monitor's passage 35 to the transmitter 24 installed on the fire hydrant device 10 is within the legally mandated range of 800 mm to 1500 mm.

As shown in Figure 1(A), the side shape of the mount 30 of this embodiment is an inverted trapezoid with the top side longer than the bottom side, and the rear side slopes diagonally downward to match the curved shape of the tunnel wall surface 26. The first housing 11a and second housing 11b of the fire hydrant device 10, which are connected to each other, are attached and fixed to the top end surface of the mount 30.

(a3. Installation height and thinness of fire hydrant equipment)
The installation height and thinness of the fire hydrant device will be explained in more detail below. In order to reduce the restriction on the passage width caused by the protrusion (projection) of the fire hydrant device 10, which is installed on the road surface of the guard passage 35 by the mount 30, from the tunnel wall surface 26, the installation height of the fire hydrant device 10 is optimized, and at the same time, the fire hydrant device 10 is made as thin as possible.

First, since the installation height of the fire hydrant device 10 is determined by the mounting base 30, we will explain in more detail how to optimize the height H1 of the mounting base 30. Figure 2 shows a schematic diagram of the installation of a fire hydrant device in a tunnel cross section. The tunnel wall 26 on which the fire hydrant device 10 is installed has a circular cross section, and in Figure 2(A), the height H1 of the mounting base 30 is set so that the horizontal housing center line SL2 passing through the height center of the fire hydrant device 10 installed on the monitor passage 35 is as close as possible to the horizontal tunnel center line SL1 from the tunnel center (center of the circular cross section) P.

In this case, the closer the housing center line SL2 is to the tunnel center line SL1, the less the fire hydrant device 10 protrudes from the tunnel wall surface 26.

Figure 2 (B) shows a case where the height H1 of the mount 30 is set so that the housing center line SL2 is aligned with the tunnel center line SL1. In this case, the degree to which the fire hydrant device 10 protrudes from the tunnel wall surface 26 can be minimized. However, the height H1 of the mount 30 should be adjusted as much as possible, taking into account factors such as the ease of removing the fire extinguisher.

Next, the thinning of the fire hydrant device 10 will be explained in more detail. Of the devices housed in the fire hydrant device 10, the fire extinguisher housed in the second housing 11b has the largest front-to-rear size. The fire hydrant device 10 can be thinned as long as the width (thickness in the front-to-rear direction) of the fire hydrant device is the minimum value that allows the fire extinguisher to be housed in the second housing 11b. Therefore, the width of the fire hydrant device 10 is set to a predetermined width that corresponds to the outer diameter of the fire extinguisher housed in the second housing 11b.

The outer diameter of the fire extinguisher is approximately 150 to 160 mm. If a gap is secured to prevent the stored fire extinguisher from coming into contact with the second housing 11b, the minimum width of the fire hydrant device 10 will be, for example, within a range of approximately 180 to 200 mm, and the width of the fire hydrant device 10 is set to a predetermined width within this range. In contrast, the width of a conventional fire hydrant device 10, which is installed by cutting a box out of the wall of the tunnel body and embedding it in place, is approximately 300 mm. Therefore, the width of the fire hydrant device 10 of this embodiment can be reduced to two-thirds of the conventional width, allowing for a thinner fire hydrant device 10.

(a4. Configuration corresponding to the thinning of the fire hydrant device)
If the fire hydrant device 10 is thinned to a predetermined width in the range of approximately 180 to 200 mm corresponding to the outer diameter of the fire extinguisher, it becomes difficult to store a fire hose of a predetermined length, for example, a 30 m shape-retaining hose, in an inwardly coiled state in the first housing 11a, as in conventional fire hydrant devices. Therefore, in this embodiment, by increasing the width (width in the left-right direction) of the first housing 11a, it becomes possible to store a shape-retaining hose of the same predetermined length in an inwardly coiled state as in conventional fire hydrant devices.

Furthermore, as the fire hydrant device 10 becomes thinner, it becomes difficult to place a terminal box on the rear surface of the housing behind the fire extinguisher storage section where the fire extinguisher is stored, as is the case with conventional fire hydrant devices. Therefore, in this embodiment, the width (left-right length) of the second housing 11b is expanded to accommodate not only the fire extinguisher storage but also electrical equipment and a terminal box.

(a5. Fire hydrant device stand)
The fire hydrant device mount will now be described in more detail. Figure 3 is a perspective view of the mount on which the fire hydrant device is mounted. The mount 30 is, for example, made by cutting angle bars or the like to a predetermined length and welding them together into a box shape, and the angle bars or the like are arranged so that, when viewed from the side, it forms an inverted trapezoid with the top side longer than the bottom side.

The top surface of the mount 30 has mounting holes 31, each paired with a front and rear hole, formed in three separate locations along the length of the top surface. The mounting holes 31 are formed at positions that correspond to the mounting holes on the bottom of the first housing 11a and second housing 11b of the fire hydrant device 10. With the mounting holes aligned, the first housing 11a and second housing 11b are attached and fixed to the mount 30 by passing bolts through them and fitting nuts.

[b. Structure of the hydrant device housing and cover housing]
The structure of the housing and cover housing of the fire hydrant device will be described in more detail with reference to FIGS. 4 to 6.

(b1. Structure of the first housing)
The structure of the first housing 11a will be described in more detail. In this description, reference will be made to Fig. 4, which shows the internal structure of the fire hydrant device from the front with the hydrant door and maintenance door open, Fig. 5, which shows the internal structure of the fire hydrant device in cross section as viewed from above, and Fig. 6, which shows a cross section of the hose storage section of the first housing as viewed from the right side. Note that Fig. 5 is a cross section taken along the line a-a in Fig. 4, and Fig. 6 is a cross section taken along the line b-b in Fig. 4. Furthermore, Fig. 6 shows the side view of the fire hydrant door 12 shown in Fig. 4.

The interior of the first housing 11a, which houses the fire hydrant equipment, is divided into a valve storage section 50a and a hose storage section 50b. A water hydrant 52 is located in the valve storage section 50a, and the piping to the water hydrant 52 branches downward, with a fire hydrant valve 54 and an automatic pressure regulating valve 56 at the end of the branch, and a shape-retaining fire hose 60 connected to it.

The hydrant valve 54 is opened and closed using a hydrant valve opening/closing lever 58. When the hydrant valve opening/closing lever 58 is opened or closed, the hydrant valve 54 is remotely opened or closed using a known wire link mechanism. Furthermore, when the hydrant valve opening/closing lever 58 is opened or closed, a pump start-up interlocking switch provided on the operation box turns on or off. A pump start switch 64 for use by the fire brigade is also provided on the upper right of the hydrant 52.

A hose storage frame 62 is provided in the hose storage section 50b, and the fire hose 60, pulled in from below, is stored in a clockwise or counterclockwise inward coiled state. The hose storage frame 62 is wider to accommodate the increased width of the first housing 11a that accompanies the slimmer fire hydrant device 10, allowing the same predetermined length of fire hose 60 to be stored with fewer coils than in conventional fire hydrant devices. A nozzle 68 is attached to the tip of the fire hose 60 pulled out through the hose guide 66, and the nozzle 68 is detachably held in a nozzle holder 70.

(b2. Cover housing on the right side of the first housing)
The cover housing 32 disposed on the right side of the first housing 11a in which the fire hydrant device is housed will be described in more detail. In this description, reference will be made to Fig. 7, which shows the right side of the first housing 11a in which the cover housing is disposed, in addition to Fig. 4 to Fig. 6. Fig. 7(A) shows the cover door 32a in a closed state, and Fig. 7(B) shows the cover door 32a in an open state.

As shown in Figure 7 (A), the cover housing 32 arranged on the right side of the first housing 11a has a curved surface 32c formed at the vertical corner where the front and side surfaces of the cover meet, so that when arranged on the right side of the first housing 11a, the vertical corner where the front and side surfaces of the first housing 11a meet is eliminated (rounded).

For this reason, even if the fire hydrant device 10 is installed in an exposed state in the monitor's passage 35, the corner of the cover housing 32 that protrudes into the monitor's passage 35, including the cover door 32a, forms a curved surface 32c, reducing the impact if an evacuee passing in front of the fire hydrant device 10 hits the corner, preventing falls or injury and ensuring a safe evacuation route.

The cover door 32a is arranged on the cover housing 32 so that it opens sideways to the left on hinges 32b, with the vertical axis of the front end of the door opening. The cover door 32a is an L-shaped door body that runs along the cover housing 32 from the front to the side, and a curved surface 32c that continues toward the cover housing 32 is formed at the vertical door corner where the front and side meet.

The structure and mechanism for keeping or unlocking the cover door 32a closed are arbitrary, but for example, an opening/closing lever 32e is located at the side edge, and when the opening/closing lever 32e is operated, the lock is released, allowing the cover door 32a to be opened, as shown in Figure 7(B). An engagement portion 32f is located at the door opening edge corresponding to the opening/closing lever 32e, and can be locked or unlocked by operating the opening/closing lever 32e when the door is closed. The opening/closing lever 32e may also be lockable.

The word "fire hydrant," indicating the name of the emergency equipment, is displayed vertically on the side of the cover door 32b. As shown in FIG. 1, in addition to the word "fire hydrant" displayed horizontally on the fire hydrant door 12 of the first housing 11a, the word "fire hydrant" is also displayed vertically on the cover housing 32b, making the name of the emergency equipment visible from the right side of the fire hydrant device 10 and expanding the viewing area.

The interior of the cover housing 32 is used, for example, as a piping storage section 50d. As shown in Figures 4 and 5, a water supply pipe 48 is routed through the stand 30 to the right side of the first housing 11a, and a pipe-through hole is formed in the bottom surface of the cover housing 32 so that the upper end of the water supply pipe 48 is located inside the cover housing 32 when the fire hydrant device 10 is attached and fixed to the stand 30.

The water supply pipe 48 drawn from the base 30 into the cover housing 32 is connected via a pipe 49a and an elbow 49b to a pipe taken out from the side surface of the first housing 11a. For this reason, as shown in Fig. 7(B), a pipe through hole 53 is formed in the inner side surface of the cover housing 32. Note that Fig. 7(B) omits the illustration of these pipes.

In this way, by storing the piping, including the water supply pipe 48, pipe 49a, and elbow 49b, inside the cover housing 32 located on the side of the first housing 11a, the piping located on the side of the fire hydrant device 10 is covered by the cover housing 32, improving its appearance and preventing the piping from becoming soiled, thereby improving its durability.

(b3. Structure of the second housing)
The second housing 11b is divided into an electrical equipment side and a fire extinguisher housing side. First, the structure of the electrical equipment side of the second housing 11b will be described in more detail. As shown in Figures 4 and 5, an electrical equipment door 18 that opens laterally to the right on a hinge 18a is located in the door opening on the right side of the second housing 11b. The electrical equipment door 18 is equipped with, from top to bottom, a red indicator light 22, a transmitter 24, and a response lamp 25, and a telephone jack 28 is located inside the electrical equipment door 18.

Of the electrical equipment, the red indicator light 22 has the largest longitudinal size inside the second housing 11b, measuring approximately 120 mm. Therefore, even if the fire hydrant device 10 is thinned to a specified width in the range of approximately 180 to 200 mm, each piece of electrical equipment can be placed while still ensuring sufficient space for the cables pulled in from the first housing 11a.

In addition, an auxiliary door 20 that opens sideways to the left on a hinge 20a is located on the left side of the electrical door 18, and as shown in Figures 4 and 5, terminal boxes 26a and 26b are located vertically on the rear surface of the second housing 11b inside the housing opposite the auxiliary door 20. The auxiliary door 20 is opened together with the electrical door 18 to form an access point when connecting wiring cables to the terminal boxes 26a and 26b.

The terminal boxes 26a and 26b are composed of a box body and a lid member, and when placed in the second housing 11b, their dimensions in length (top and bottom) x width (left and right) x depth (front and back) are approximately 220 mm x 140 mm x 80 mm.

As a result, even if the fire hydrant device 10 is thinned to a specified width in the range of approximately 180 to 200 mm, the depth (front to back) of the terminal boxes 26a and 26b is approximately 80 mm, ensuring sufficient space within the second housing 11b to accommodate the terminal boxes 26a and 26b. Furthermore, because the terminal boxes 26a and 26b are positioned close to electrical equipment such as the red indicator light 22 located on the first door 18, short wiring can be used to connect the terminal boxes 26a and 26b to the electrical equipment.

Depending on the fire hydrant device, a transmission unit may be installed to transmit and receive the fire notification signal from the transmitter 24 located on the electrically equipped door 18 and the response signal to the response lamp 25 via a transmission line between the device and the disaster prevention receiving panel. Sufficient space is provided within the second housing 11b for the terminal boxes 26a and 26b as well as the transmission unit.

Next, the structure of the fire extinguisher storage side of the second housing 11b will be described in more detail. As shown in Figures 4 and 5, there is sufficient space inside the fire extinguisher door 16 of the second housing 11b to store two fire extinguishers 72 with an outer diameter of approximately 150 to 160 mm. Furthermore, as mentioned above, in order to make the fire hydrant device 10 thinner, the width of the fire hydrant device 10 is set to a predetermined width in the range of 180 to 200 mm, which corresponds to the outer diameter of the fire extinguisher 72. This ensures gaps of approximately 15 to 25 mm in front and behind the stored fire extinguisher 72, allowing the fire extinguisher 72 to be stored without coming into contact with the second housing 11b.

(b4. Cover housing on the left side of the second housing)
The cover housing 34 disposed on the left side surface of the second housing 11b in which the fire extinguisher is housed will be described in more detail below. In this description, reference will be made to Fig. 8, which shows the left side of the second housing 11b on which the cover housing 34 is disposed, in addition to Fig. 4 to Fig. 6. Fig. 8(A) shows the cover door in a closed state, and Fig. 8(B) shows the cover door in an open state.

As shown in Figure 8 (A), the cover housing 34 arranged on the left side of the second housing 11b has a curved surface 34c formed at the vertical corner where the front and side surfaces of the cover meet, so that when arranged on the left side of the second housing 11b, the vertical corner where the front and side surfaces of the second housing 11b meet is eliminated (rounded).

For this reason, even if the fire hydrant device 10 is installed in an exposed state in the monitor's passage 35, the corners of the cover housing 34 that protrude into the monitor's passage 35, including the cover door 34a, form curved surfaces 34c, reducing the impact if an evacuee passing in front of the fire hydrant device 10 hits the corners, preventing falls and injury and ensuring a safe evacuation route.

The cover door 34a is arranged on the cover housing 34 via hinges 34b so that it opens sideways to the right, with the vertical axis of the front end of the door opening. The cover door 34a is an L-shaped door body that runs along the cover housing 34 from the front to the side, and a curved surface 34c that continues toward the cover housing 34 is formed at the vertical corner where the front and side of the door meet. The structure and mechanism for keeping and releasing the cover door 34a closed are arbitrary, but for example, it may be composed of an opening/closing lever 34e and an engaging portion 34f, similar to the cover door 32b shown in Figure 7. The opening/closing lever 34e may be lockable.

The word "fire extinguisher," indicating the name of the emergency equipment, is written vertically on the side of the cover door 34b. As shown in Figure 1, in addition to the word "fire extinguisher" written horizontally on the fire extinguisher door 16 of the second housing 11b, the word "fire extinguisher" is written vertically on the cover housing 34b, making the name of the emergency equipment visible from the left side of the fire hydrant device 10 and expanding the visibility area.

The interior of the cover housing 34 is used, for example, as an equipment storage section 50e. As shown in Figure 8 (B), the interior of the cover housing 34 is divided into multiple storage compartments by, for example, the arrangement of shelves 36.

The equipment storage section 50e of the cover housing 34 can store any equipment. For example, electrical equipment to be placed in the electrical door 18, replacement spare parts for valves and other components to be placed in the valve storage section 50a, tools such as screwdrivers and wrenches used for inspecting and repairing the hydrant device 10, work equipment such as helmets and gloves used for operating and managing emergency equipment including the hydrant device 10, test equipment such as test jigs used in actual water discharge tests of the hydrant device 10, and even first aid equipment such as a first aid kit can be stored.

It is desirable to store multiple types of equipment in groups of a specified number of fire hydrant devices rather than storing them all in the same fire hydrant device 10, and to store them dispersedly within each group. It is also desirable to mark the inside of the cover door 34 with letters, figures, symbols, etc. indicating the equipment stored therein so that it can be identified at a glance. Furthermore, making the opening/closing lever 34e lockable can help prevent tampering with or theft of these items.

[c. Second embodiment of fire hydrant device]
A second embodiment of the fire hydrant device in which shock-absorbing members are arranged at the corners of the housing will be described in more detail. In this description, reference will be made to Fig. 9 , which shows the second embodiment of the fire hydrant device, Fig. 10 , which shows the internal structure of the fire hydrant device corresponding to the second embodiment, and Fig. 11 , which shows the right side of the first housing 11 a in which the shock-absorbing members are arranged. Fig. 9(A) shows the front view, Fig. 9(B) shows the plan view, Fig. 9(C) shows the left side view, and Fig. 9(D) shows the right side view.

As shown in Figure 9, the fire hydrant device 10 of this embodiment is composed of a first housing 11a and a second housing 11b, and is attached and fixed to the upper end surface of a stand 30 located in the monitor's passage. The details of the first housing 11a and the second housing 11b are the same as those of the first embodiment described above, so the same reference numerals are used and their description will be omitted.

In this embodiment, as shown in Figures 9 and 11, a cushioning member 42 is disposed on the right side of the first housing 11a. The cushioning member 42 is composed of a corner cover portion 42a that covers the corner where the front and side of the first housing 11a meet in the height direction, and a side cover portion 42b that covers the side. The cushioning member 42 may be made of any material, but examples include hard rubber and synthetic resin.

The corner cover portion 42a of the buffer member 42 covers the protruding portion of the corner of the housing, reducing the impact when an evacuee passing in front of the fire hydrant device 10 hits that corner, preventing falls and injury and ensuring a safe evacuation route.

In addition, the side cover portion 42b of the buffer member 42 protects the side of the housing from collisions with foreign objects kicked up by vehicles traveling on the road inside the tunnel, and also prevents the side of the housing from being soiled by exhaust gases and dust inside the tunnel, improving durability.

In this embodiment, a gantry cushioning member 43 is also arranged on the right side of the housing 30, which is located below the right side of the first housing 11a. The gantry cushioning member 43 is also composed of a corner cover portion 43a that covers the corner where the front and side of the housing 30 meet in the height direction, and a side cover portion 43b that covers the side. The material of the cushioning member 42 is also optional, but like the cushioning member 42, hard rubber or synthetic resin is often used.

The corner cover portion 43a of the mount cushioning member 43 covers the protruding portion of the mount corner, reducing the impact when the feet of evacuees passing in front of the fire hydrant device 10 hit the corner, preventing falls and injury and ensuring a safe evacuation route. The side cover portion 43b of the mount cushioning member 43 also prevents the side of the housing from getting dirty, improving durability. Furthermore, the side of the cushioning member 42, located on the right side of the first housing 11a, displays the word "fire hydrant" in vertical text, indicating the name of the emergency equipment, making the name of the emergency equipment visible from the right side of the fire hydrant device 10.

Here, as shown in Figure 10, the water supply pipe 48 is connected to the first housing 11a in a piping structure in which it passes through the base 30, is drawn in from the bottom of the first housing 11a, and is connected to the water hydrant 52. Just before that, the pipe branches off downward and connects to the fire hydrant valve 54 and the automatic pressure regulating valve 56. As the water supply pipe 48 is drawn into the housing from the bottom, it is not exposed to the outside.

In addition, in this embodiment, as shown in FIG. 9, a buffer member 44 is disposed on the left side of the second housing 11b, and a mount buffer member 45 is also disposed on the left side of the mount 30. The configuration of the buffer member 44 and mount buffer member 45 is similar to the configuration of the buffer member 42 and mount buffer member 43 disposed on the right side of the first housing 11a and mount 30, respectively, but differs in that the character string "fire extinguisher" is written vertically on the side of the buffer member 44.

For this reason, the second housing 11b also uses buffer members 44 and mount buffer members 45 to cover the protruding corners of the housing and mount, reducing the impact when evacuees passing in front of the fire hydrant device 10 hit the corners, preventing them from falling or getting injured and ensuring a safe evacuation route. Similarly to buffer member 42, buffer member 44 protects the side of the housing from collisions with foreign objects thrown up by vehicles traveling on the road inside the tunnel, but this effect is greater on the fire extinguisher housing side (buffer member 44 side), which is upstream of vehicle traffic, than on the hydrant side (buffer member 42 side).

The buffer member 42 and the frame buffer member 43, and the buffer member 44 and the frame buffer member 45 may be integrally formed. Also, only the buffer members 42 and 44 may be provided, without the frame buffer members 43 and 45.

[d. Third embodiment of fire hydrant device]
A third embodiment of the fire hydrant device in which an identification member is disposed at a corner of the housing will be described in more detail below. In this description, reference will be made to Fig. 12 showing the third embodiment of the fire hydrant device and Fig. 13 showing the light emission control unit.

(d1. Identification member at corner of housing)
The identification members disposed at the corners of the housing of the fire hydrant device 10 will now be described in more detail. As shown in Figure 12, the fire hydrant device 10 of this embodiment is composed of a first housing 11a and a second housing 11b, and is attached and fixed to the upper end surface of a stand 30 disposed in the monitor's passage. The details of the first housing 11a and the second housing 11b are the same as those of the first and second embodiments described above, so the same reference numerals are used and a description thereof will be omitted.

In this embodiment, as shown in FIG. 12, an identification member 74 is placed at the corner where the front and side of the first housing 11a meet in the height direction, and an identification member 76 is placed at the corner on the right side where the front and side of the second housing 11b meet in the height direction. Note that the identification members 74 and 76 may also be placed on the side near the corner.

The identification members 74, 76 have the function of making users, particularly evacuees using the guard passage, aware of the presence of the protruding corners of the housing. Their structure and function are optional, but for example, they may have a conspicuous color or pattern around them.

It is also desirable that the identification members 74, 76 have light-emitting units that are driven in an emergency to light, flash, or blink the identification members 74, 76. The light-emitting control units for the identification members 74, 76 use the functional configurations shown in either Figure 13 (A) or (B).

(d2. Embodiments of the Light Emission Control Unit)
The light-emission control unit shown in Fig. 13A will be described in more detail. The light-emission control unit may have any configuration or function, but may be configured, for example, with a controller 78, light-emitting units 80 and 82, a door switch 84, a transmitter 24, and a response lamp 25.

The controller 78 uses hardware such as a computer circuit, and when certain conditions are met, controls the light-emitting units 80, 82 to light up, flash, or blink the identification members 74, 76.

The light-emitting units 80, 82 are optional, but for example, LEDs are used as light-emitting elements. Here, the identification members 74, 76 are, for example, light guides made of a red translucent material, with a length corresponding to the height of the housing, and when light is incident from the light-emitting units 80, 82 located at one end of the light guide, the entire light guide emits a red light.

The door switch 84 detects the door opening operation of the fire hydrant door 12, and is provided, for example, on the fire hydrant door 12, and switches from off to on or from on to off when the fire hydrant door 12 is opened, outputting a door open detection signal to the controller 78. The door switch 84 may be provided on the fire extinguisher door 16, or may be provided on both the fire hydrant door 12 and the fire extinguisher door 16.

The transmitter 24 is installed on the electrically equipped door 18 of the fire hydrant device 10. When operated by a user in the event of a fire, a fire notification signal is sent to the disaster prevention receiving panel, and the signal line is branched off and the fire notification signal is input to the controller 78.

The response lamp 25 is provided on the electrically equipped door 18 of the fire hydrant device 10. When a user operates the transmitter 24 to send a fire alert signal to the disaster prevention receiving panel, a response signal is sent from the disaster prevention receiving panel, causing the response lamp 25 to light up. The signal line for the response lamp 25 is then branched off and the response signal is input to the controller 78.

The light-emitting control unit is equipped with a rechargeable battery power supply as its operating power source. Under normal circumstances, it is charged, for example, by 100V AC supplied via a wiring cable to the red indicator light 22 on the electric door 18. When the light-emitting units 80, 82 are driven, the battery power supply switches from charging mode to operating mode. This makes it possible to drive the light-emitting of the identification members 74, 76 without increasing the capacity of the power supply equipment for the fire hydrant device 10. In addition to the battery power supply, a power generator powered by the flowing fire water discharged from the fire hose of the fire hydrant device 10 may also be provided as an operating power source.

The control operation of the light emission control unit shown in Figure 13 (A) will be explained in more detail. When a user opens the hydrant door 12 to use the fire hydrant device 10 in the event of a fire, the door switch 84 is activated and a door open detection signal is input to the controller 78. Also, when a user operates the transmitter 24 in the event of a fire, a fire notification signal is sent to the disaster prevention receiving panel and input to the controller 78.

When the controller 78 receives a door open detection signal from the door switch 84 or a fire alert signal from the transmitter 24, it determines that the specified light emission drive conditions have been met and outputs a light emission drive signal to the light emitting units 80, 82 to drive the light emitting units 80, 82 and cause the identification members 74, 76 to light up, flash, or blink.

In this way, the identification members 74, 76 of the fire hydrant device 10 operated by a user during a fire will emit light. In this case, the identification members 74, 76 of the fire hydrant devices 10 other than the one operated during a fire will also need to emit light.

In this embodiment, when the disaster prevention receiving panel receives a fire notification signal from a hydrant device 10 that was operated when a fire broke out, it has the function of transmitting a response signal to other hydrant devices other than the hydrant device 10 that sent the notification. Therefore, when the controller 78 of the other hydrant devices 10 whose transmitters 24 are not operated receives the response signal from the disaster prevention receiving panel, it drives the identification members 74, 76 to emit light. This causes the identification members 74, 76 to light up, flash, or blink on multiple or all hydrant devices 10 located at 50-meter intervals along the monitor's passageway, making evacuees more aware of the presence of the corners of the housing protruding into the monitor's passageway.

(d3. Other embodiments of the light-emission control unit)
Another embodiment of the light-emitting control unit shown in Fig. 13(B) will be described in more detail. The light-emitting control unit of this embodiment utilizes a transmission unit disposed in the fire hydrant device 10. The configuration and function of the light-emitting control unit are arbitrary, but for example, it is composed of a transmission unit 90, a controller 78, light-emitting units 80 and 82, a door switch 84, a transmitter 24, and a response lamp 25.

The transmission unit 90 is connected to a transmission path 92 from the disaster prevention receiving panel, and transmits a signal containing a preset unique self-address to the disaster prevention receiving panel, and also receives a signal containing the self-address transmitted from the disaster prevention receiving panel.

A transmitter 24 is connected to the input side of the transmission unit 90, and a response lamp 25 is connected to the output side of the transmission unit 90. The pump start switch 64 and pump start interlock switch 65 are connected to the input side of the transmission unit 90 in parallel with the transmitter 24. This is a well-known configuration. Furthermore, in this embodiment, a door switch 84 that detects the opening of the hydrant door 12 is newly connected to the input side of the transmission unit 90.

The control operation of the light emission control unit shown in Figure 13 (B) will be explained in more detail. When a fire breaks out and a user operates the transmitter 24, a fire notification signal is output to the transmission unit 90, and the transmission unit 90 transmits the fire notification signal, including its own address, to the disaster prevention receiving panel via the transmission path 92. When the disaster prevention receiving panel receives the fire notification signal via the transmission path 92, it identifies the fire hydrant device 10 from the address contained in the signal, performs a fire alarm operation, and transmits a response signal, including the address of the identified fire hydrant device 10, to the transmission path 92. When the transmission unit 90 of the fire hydrant device 10 determines that it has received a response signal including its own address, it turns on the response lamp 25 and outputs the received response signal to the controller 78.

When the controller 78 receives a response signal from the transmission unit 90, it determines that the specified light emission drive conditions have been met and outputs a light emission drive signal to the light emitters 80, 82 to drive them to emit light, causing the identification members 74, 76 to light up, flash, or blink.

On the other hand, if a user opens the hydrant door 12 to use the fire hydrant device 10 without operating the transmitter 24, the door switch 84 is activated and a door-open detection signal is output to the transmission unit 90, and the transmission unit 90 transmits the door-open detection signal, including its own address, to the disaster prevention receiving panel via the transmission path 92.

When the disaster prevention receiving panel receives a door-open detection signal from the transmission path 92, it identifies the fire hydrant device 10 from the address contained therein, performs a fire alarm operation, and transmits a light-emitting control signal including the address of the identified fire hydrant device 10 to the transmission path 92. When the transmission unit 90 of the fire hydrant device 10 determines that it has received a light-emitting control signal including its own address, it outputs the received light-emitting control signal to the controller 78. When the controller 78 receives the light-emitting control signal from the transmission unit 90, it determines that the specified light-emitting drive conditions have been met and outputs a light-emitting drive signal to the light-emitting units 80, 82 to drive them to emit light, causing the identification members 74, 76 to light up, flash, or blink.

[e. Modifications of the present invention]
Modifications of the fire hydrant device according to the present invention will be described. In addition to the above-described embodiment, the fire hydrant device of the present invention includes the following modifications.

(Wall-mounted fire hydrant device)
The above embodiments have been given as examples of fire hydrant devices with a stationary structure in which the housing is attached and fixed to the top of a stand installed on the road surface of the guard passageway close to the tunnel wall, but the present invention is not limited to this, and the first embodiment in which a cover housing is arranged on the side of the housing, the second embodiment in which a buffer member is arranged at the corner of the housing, and the third embodiment in which an identification member is arranged at or near the corner of the housing can also be applied to wall-mounted fire hydrant devices in which the housing is attached and fixed to the front part of the stand installed on the tunnel wallway above the road surface of the guard passageway, on the road side.

(Fire hydrant equipment)
In the above embodiment, the fire extinguisher is stored in the second housing, but the fire extinguishing device may also have a structure in which there is no fire extinguisher storage section in the second housing, an electrical door and an auxiliary door are provided at the front opening, and a terminal box is provided inside the housing.

(If the tunnel wall has a cross section other than a circular cross section)
In the above embodiment, the tunnel cross-sectional shape is circular, but if the tunnel cross-section is other than circular, such as a tricentric circle, the present invention can be applied by taking the horizontal line at the position where the horizontal width of the tunnel cross-sectional shape is widest as the tunnel center line SL1 in the above explanation.

(Fire hydrant device structure compatible with thinning)
In the fire hydrant device in the above embodiment, the width of the first and second housings is increased to accommodate the reduction in thickness of the fire hydrant device, thereby ensuring the internal volume that would have been reduced by the reduction in thickness. However, the vertical width of the first and second housings may also be increased to ensure the internal volume that would have been reduced by the reduction in thickness.

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

10: Fire hydrant device 11a: First housing 11b: Second housing 12: Fire hydrant doors 13a, 13b: Decorative frame 14: Maintenance door 16: Fire extinguisher door 17: Viewing window 18: Electrical door 20: Auxiliary door 22: Red indicator light 24: Transmitter 25: Response lamps 26a, 26b: Terminal box 28: Telephone jack 30: Stand 31: Mounting holes 32, 34: Cover housing 32a, 34a: Cover doors 32b, 34b: Hinges 32c, 34c: Bay Curved surfaces 32e, 34e: Opening/closing levers 32d, 34d: Door openings 32f, 34f: Engagement section 35: Supervisor passage 36: Shelf boards 42, 44: Cushioning members 43, 45: Stand cushioning members 42a, 43a: Corner cover sections 42b, 43b: Side cover section 46: Road 48: Water supply pipe 50a: Valve storage section 50b: Hose storage section 50c: Fire extinguisher storage section 50d: Pipe storage section 50e: Fixture storage section 52: Water faucet
53: Pipe passing hole
54: Fire hydrant valve 56: Automatic pressure regulating valve 58: Fire hydrant valve opening/closing lever 60: Fire hose 62: Hose storage frame 64: Pump start switch 65: Pump start interlocking switch 66: Hose guide 68: Nozzle 70: Nozzle holder 72: Fire extinguisher 74, 76: Identification member 78: Controller 80, 82: Light emitting unit 84: Door switch 90: Transmission unit 92: Transmission path

Claims (12)

A fire hydrant device installed at a predetermined height from the road surface of a watchman passage provided along the tunnel wall of a tunnel having a road so that the housing is close to or in contact with the wall surface,
a cover housing adjacent to the housing in the longitudinal direction of the tunnel ;
A fire hydrant device characterized in that, when the surface of the cover housing facing the wall is the rear surface, the surface facing the road is the front surface, and the surface facing the longitudinal direction is the side surface, the corner where the front surface and the side surface of the cover housing meet are formed as a curved surface.
The fire hydrant device according to claim 1,
A fire hydrant device characterized in that the cover housing is arranged on both sides of the housing in the longitudinal direction.
The fire hydrant device according to claim 1 or 2,
the cover housing includes a cover door at the corner,
The cover door is characterized in that a portion of each of the front door and the side door can be opened and closed integrally, and can be locked. The fire hydrant device according to claim 3,
The cover door is an L-shaped door body extending from the front surface of the door to the side surface of the door, and the curved surface is formed at the corner where the front surface of the door and the side surface of the door meet. The fire hydrant device is characterized in that the cover door is supported so as to be able to be opened and closed freely, with the front end or side end of the door opening extending from the front surface of the cover housing as an axis.
The fire hydrant device according to any one of claims 2 to 4,
A fire hydrant device characterized in that the cover housing, which is arranged on the fire hydrant equipment storage side of the housing, has a water supply pipe arranged inside it that is drawn into the housing.
The fire hydrant device according to any one of claims 2 to 5,
A fire hydrant device characterized in that the cover housing, which is arranged on the fire extinguisher storage side of the housing, is capable of storing specified equipment inside.
The fire hydrant device according to claim 6,
A fire hydrant device characterized in that the equipment that can be stored in the cover housing includes spare equipment for repair and replacement, tools, work materials, and inspection jigs.
The fire hydrant device according to any one of claims 2 to 7,
The cover housing arranged on the fire hydrant device housing side of the housing has the character string "fire hydrant" displayed on the side thereof,
A fire hydrant device characterized in that the cover housing arranged on the fire extinguisher storage side of the housing has the word "fire extinguisher" written on the side.
The fire hydrant device according to claim 8,
A fire hydrant device characterized in that the character string is displayed vertically.
The fire hydrant device according to any one of claims 1 to 8,
The fire hydrant device is characterized in that the housing is attached and fixed to the top of a stand installed on the road surface of the guard passage, close to the tunnel wall.
The fire hydrant device according to claim 10 ,
A fire hydrant device characterized in that a buffer member is arranged at the corner where the front and side surfaces of the platform meet, covering the corner with a curved surface.
The fire hydrant device according to any one of claims 1 to 8,
The fire hydrant device is characterized in that the housing is attached and fixed to the front part of a platform installed on the tunnel wall above the road surface of the monitor passage, on the road side.