Fire hydrant device

Abstract

To secure visibility of a display device indicating an installation place from the front and the side simultaneously without impairing thinning of a housing.SOLUTION: In a fire hydrant device 10, a housing in which predetermined fire hydrant equipment is stored adjacent to or in contact with a tunnel wall surface 25 is installed at a predetermined height above a road surface of a watchman's passage 34 provided along a wall surface of a tunnel having a road. A laterally long display device 30 for performing red color display indicating an installation place is provided on the upper side of a corner part 50 of a third housing 12c where the front face 46 of the third housing 12c intersects with the side face 48 opposing in a vehicle progressing direction. In the laterally long display device 30, a front display surface 3010 and a side display surface 3012 are arranged in an L shape in the corner part 50, and visibility from the front direction and the side direction is secured while suppressing jumping-out to the front face.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a fire hydrant device that is installed exposed in a guard passage provided along a tunnel wall. [Background technology]

[0002] Conventionally, fire hydrant devices are installed as emergency tunnel equipment in tunnels such as expressways and motorways. For example, in a fire hydrant device, a fire hose with a water discharge nozzle at the tip and valves including a fire hydrant valve are stored in a fire hydrant storage section inside a housing equipped with a forward-tilting fire hydrant door (forward-tilting door), and two fire extinguishers are stored in a fire extinguisher storage section inside a housing equipped with a fire extinguisher door. In addition, fire hydrant devices are generally installed in the tunnel wall where a guard passage is provided, by cutting out boxes and embedding them in the longitudinal direction of the tunnel, for example, at intervals of 50 meters (Patent Document 1).

[0003] However, in tunnels constructed using methods such as the shield tunneling method, the structure of the tunnel body makes it difficult to cut a box out of the tunnel wall and embed and install a fire hydrant device, due to the cost and labor involved, so it is required that the fire hydrant be installed exposed in the guard passage.

[0004] For this reason, a wall-mounted structure has been proposed in which a stand is installed on the tunnel wall and the fire hydrant is attached and fixed to the stand, as a structure that allows the fire hydrant to be installed exposed to the guard passage without having to be boxed out of the tunnel wall.The stand for this wall-mounted structure is composed of a main support part that is fixed to the wall surface and a posture maintaining member that maintains the posture of the fire hydrant (Patent Document 2).

[0005] However, installing a fire hydrant device using a wall-mounted structure has issues such as the labor and time required to attach the device to the tunnel wall, so it has been proposed to adopt a so-called fixed structure, in which a stand is placed on the road surface of the monitor's passage, which is easier to install, and the main body of the fire hydrant device is attached and fixed to the installed stand.

[0006] Incidentally, in the case of a fire hydrant device whose casing is installed at a specified height above the guard passage, it is necessary to make it as thin as possible so as not to obstruct passage through the guard passage. For example, a thinness of, for example, 20 centimeters is sought, which is the depth that can accommodate a fire extinguisher, the largest piece of equipment stored in the fire hydrant device.

[0007] However, fire hydrant devices are equipped with red indicator lights to make the location of the fire hydrant device visible from a distance, and in order to enable visibility from the front and sides of the housing, the red indicator light protrudes from the front of the housing by several centimeters, which prevents the fire hydrant device from being made thin.

[0008] To solve this problem, the fire hydrant device in Patent Document 3 is installed on the guard passage on the left side of the vehicle travel direction, and the driver of the vehicle traveling through the tunnel, who is the user of the fire hydrant device, looks at the fire hydrant device from the left side direction. Therefore, the fire hydrant device in Patent Document 3 has a red indicator light arranged on the left side of the fire hydrant device that the driver normally looks at, improving the visibility of the red indicator light and preventing the red indicator light from interfering with the thinning of the fire hydrant device. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2009-279294 A [Patent Document 2] JP 2019-000196 A [Patent Document 3] JP 2023-104538 A Summary of the Invention [Problem to be solved by the invention]

[0010] However, the fire hydrant device with an indicator light on the side panel of Patent Document 3 has a problem in that although high visibility is obtained from the driver while driving, visibility from the front and right side directions is significantly reduced. Here, current fire hydrant devices are required as technical standards to "be provided with a red light that is easily identifiable from a distance of 10 m along a direction that is at an angle of 15° or more from the mounting surface," and there is a risk that this technical standard will not be met.

[0011] The present invention aims to provide a fire hydrant device that can simultaneously ensure visibility of a display device showing the installation location from both the front and the side without compromising the thinness of the housing. [Means for solving the problem]

[0012] (Fire hydrant equipment) The present invention provides a fire hydrant device in which a housing containing a predetermined fire hydrant device is installed at a predetermined height above the road surface of a guard passage provided along the wall surface of a tunnel having a road, in close proximity to or in contact with the tunnel wall surface, A display device that displays in red to indicate the installation location is provided on the upper side of the corner where the front surface of the housing intersects with one of the sides facing the vehicle travel direction.

[0013] (Display device placed horizontally in the corner) The display device is disposed in a corner of the housing with its display surface extending horizontally.

[0014] (Display device placed vertically in the corner) The display device is disposed in a corner of the housing so that the display surface is long vertically.

[0015] (Response lamps arranged vertically) A response lamp that is lit when the transmitter is operated is disposed below or above the display device.

[0016] (Cylindrical protrusion) The display device is provided with a cylindrical protrusion in the vertical direction of the connecting portion where the front and side display surfaces intersect.

[0017] (spherical display) The display device has a spherical display body disposed at a corner of a housing.

[0018] (Cylindrical display) The display device has a cylindrical display body disposed vertically in a corner of the housing.

[0019] (Display surface width) In the display device, the projection width of a display unit disposed at a corner portion of the housing from the front surface of the housing is equal to or smaller than a predetermined width that is sufficiently smaller than the depth width of the housing.

[0020] (The display device is located in the upper corner of the fire extinguisher storage housing.) The housings are arranged side by side in the opposite direction to the vehicle travel direction, with a first housing housing a specified fire hydrant device including a fire hose, a second housing housing a specified electrical device including a transmitter, and a third housing housing a fire extinguisher, The display device is disposed on the upper side of a corner portion of the third housing (the housing for housing the fire extinguisher).

[0021] (The display device is placed in the corner of the electrical equipment housing) The housings are arranged side by side in the opposite direction to the vehicle travel direction, with a first housing housing a specified fire hydrant device including a fire hose, a second housing housing a fire extinguisher, and a third housing housing a specified electrical device including a transmitter. The display device is disposed on the upper side of a corner portion of the third housing (electrical device housing housing). Effect of the Invention

[0022] (Basic Effects of Fire Hydrant Equipment) The present invention is a fire hydrant device in which a housing containing a specified fire hydrant equipment is installed close to or in contact with the tunnel wall at a specified height above the road surface of a monitor's passage provided along the wall of a tunnel having a road, and a display device that displays in red or lights up in red to indicate the installation location is provided on the upper side of the corner where the front of the housing and one of the sides facing the vehicle travel direction of the lane intersect.Since the display surface of the display device is arranged from the front to the side, high visibility is obtained when the fire hydrant device is viewed from the direction toward the front, and at the same time, high visibility is also obtained when a vehicle driver views it from the direction toward the one side of the lane adjacent to the monitor's passage that faces the vehicle travel direction, and appropriate visibility can be ensured that reliably meets the standard that "a red light that can be easily identified from a distance of 10 m should be provided along a direction that is at an angle of 15° or more from the mounting surface (front of the housing)."

[0023] (The effect of placing the display device horizontally in the corner) In addition, since the display device has a horizontally long display surface arranged in the corner of the housing, a display surface with sufficient length from the front surface to the side surface that sandwiches the corner can be simply and easily arranged, and even if the display surface does not protrude from the mounting surface (surface of the housing), the large horizontal display area ensures high visibility from the front and sides. In addition, the display surface of the display device is flat, and in particular, the protrusion width from the front surface is very small, even if any, so high visibility can be ensured without preventing the fire hydrant device from being made thin.

[0024] (The effect of placing the display device vertically in the corner) In addition, since the display device has a vertically long display surface arranged in the corner of the housing, a display surface with sufficient vertical length from the front to the side of the corner can be simply and easily arranged, and even if the display surface does not protrude from the mounting surface (surface of the housing), the large vertical display area ensures high visibility from the front and sides. In addition, the display surface of the display device is flat, and in particular, the protrusion width from the front is very small at most, so high visibility can be ensured without preventing the fire hydrant device from being made thin.

[0025] (The effect of arranging the response lamps vertically) In addition, a response lamp that lights up when the transmitter is operated is located below or above the display device, which has a vertically long display surface arranged in the corner, so that high visibility from the front and sides can be ensured for the response lamp as well, just like the display device.

[0026] (Effect of cylindrical protrusion) In addition, since the display device has a cylindrical protrusion in the vertical direction of the connecting portion where the front and side display surfaces intersect, the cylindrical protrusion makes it possible to further improve visibility when viewed from an oblique side of the mounting surface, compared to cases where the intersection portion at the corner portion of the front display surface and the side display surface is made perpendicular or curved (radiused) surface.

[0027] (Effect of spherical display) In addition, since the display device has a spherical display body disposed in the corner of the housing, a display surface that appears spherical and of a sufficient size faces it when viewed from any position from the front to the side of the housing, ensuring high visibility.

[0028] (Effect of cylindrical display) In addition, since the display device has a cylindrical display body arranged vertically in the corner of the housing, the display surface appears to be a sufficiently large vertically elongated rectangle when viewed from any position, from the front to the side of the housing, ensuring high visibility.

[0029] (Effect of the width of the display protruding from the front) Furthermore, the protrusion width of the display unit arranged in the corner part of the housing from the front face of the housing is equal to or less than a predetermined width that is sufficiently small compared to the depth width of the housing. For example, if the depth width of the housing is approximately 20 to 25 centimeters, which corresponds to the storage of a fire extinguisher, the largest equipment to be stored, the protrusion width of the cylindrical display unit or spherical display unit from the front face of the housing is, for example, 2 to 2.5 centimeters, which is less than 1 / 10 of that width. Therefore, even if the display unit is arranged in the corner part, high visibility can be ensured without compromising the thinness of the fire hydrant device.

[0030] (Effect of placing the display device in the upper corner of the fire extinguisher storage housing) In addition, the housings are arranged side by side in the opposite direction to the vehicle travel direction, with a first housing housing the specified fire hydrant equipment including a fire hose, a second housing housing the specified electrical equipment including a transmitter, and a third housing housing the fire extinguisher, and the display device is arranged on the upper side of the corner part of the third housing (fire extinguisher storage housing), so that the display device can be simply and easily positioned on the upper side of the corner part without interfering with the fire extinguisher storage space of the third housing or the positioning of the fire extinguisher door.

[0031] (The effect of placing the display device in the corner of the electrical equipment storage housing) In addition, the housings are arranged side by side in the opposite direction to the vehicle's travel direction, with a first housing in which the specified fire hydrant equipment including the fire hose is stored, a third housing in which the fire extinguisher is stored, and a second housing in which the specified electrical equipment including a transmitter is stored.Since the display device is located on the upper side of the corner of the second housing (the housing for storing electrical equipment), the second and third housings can be swapped and the second housing (the housing for storing electrical equipment) can be placed at the end of the housings.Since the display device showing the installation location is also a type of electrical equipment, the display device can be placed on the upper side of the corner of the second housing without affecting the first or third housing, and high visibility can be ensured without compromising the thinness of the fire hydrant equipment. [Brief description of the drawings]

[0032] [Figure 1] FIG. 1 is an explanatory diagram showing an embodiment of a fire hydrant device installed on the road surface of a guard passage from the front in a state where the device is installed in a tunnel. [Diagram 2] FIG. 2 is an explanatory diagram showing the fire hydrant device of FIG. 1 from the left side. [Diagram 3] 2 is an explanatory diagram showing a housing in which the landscape display device of FIG. 1 is installed. FIG. [Figure 4] FIG. [Diagram 5] FIG. 11 is an explanatory diagram showing the visibility of a landscape display device when the fire hydrant device is viewed in plan view. [Figure 6] FIG. 13 is an explanatory diagram showing another arrangement of the landscape display device. [Figure 7] 1A and 1B are explanatory diagrams showing an embodiment of a landscape display device having corner protrusions. [Figure 8] FIG. 13 is an explanatory diagram showing an embodiment of a landscape display device having a main body formed in a triangular shape. [Figure 9] FIG. 2 is an explanatory diagram showing the housing of a fire hydrant device in which a vertically long display device is installed. [Figure 10] FIG. 2 is an explanatory diagram showing the housing of a fire hydrant device in which a spherical display device is installed. [Figure 11] FIG. 2 is an explanatory diagram showing an installation portion of a spherical display device. [Figure 12] FIG. 2 is an explanatory diagram showing the internal structure of the spherical display device. [Figure 13] FIG. 2 is an explanatory diagram showing the housing of a fire hydrant device in which a cylindrical display device is installed. [Figure 14] FIG. 2 is an explanatory diagram showing an installation portion of a cylindrical display device. [Figure 15] FIG. 11 is an explanatory diagram showing another embodiment of the fire hydrant device in which the second housing is disposed on the left side. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0033] Hereinafter, an embodiment of a fire hydrant device according to the present invention will be described with reference to the drawings. Note that the present invention is not limited to the following embodiment.

[0034] [Basic Concept of the Embodiment] First, a basic concept of the embodiment will be described. The embodiment generally relates to a fire hydrant device that is exposed and installed in a guard passage provided along a tunnel wall.

[0035] Here, a "fire hydrant device" refers to a type of emergency equipment installed in tunnels on expressways and motorways, which are areas to be extinguished, and which includes or houses fire hydrant equipment such as fire hoses, electrical equipment such as red indicator lights and transmitters that indicate the installation location, terminal boxes, fire extinguishers, etc., and is a concept that includes fire hydrant facilities in which fire hydrant devices are installed.

[0036] In addition, the fire hydrant device of the embodiment is installed at a predetermined height above the road surface of the monitor's passageway that is provided along the tunnel wall so as to be close to or in contact with the tunnel wall, and includes fire hydrant devices installed in a "wall-mounted structure" or "stationary structure" that installs the fire hydrant device in an exposed state in the monitor's passageway.

[0037] As explained in the Background Art section, the "wall-mounted structure" refers to a structure that enables a fire hydrant device to be installed so as to be wall-mounted on the tunnel wall by installing a stand on the tunnel wall and attaching and fixing the fire hydrant device to the installed stand, etc. Also, the "stationary structure" refers to a structure that enables a fire hydrant device to be installed on the road surface of the guard passage by installing a stand on the road surface of the guard passage and attaching and fixing the fire hydrant device to the installed stand, etc.

[0038] In addition, "mounting" refers to a structure that supports an object using pillars and beams, etc., and includes concepts such as support stand, foundation, base, seat, and base. In addition, "installed close to or in contact with the tunnel wall" includes installation close to the tunnel wall, installation with a part in contact with the tunnel wall, or installation with a part fixed to the tunnel wall.

[0039] The fire hydrant device of this embodiment is characterized in that a display device that displays in red to indicate the installation location is provided on the upper side of the corner where the front of the housing intersects with one of the sides facing the direction of vehicle travel (the left side when driving on the left side).

[0040] Here, the "display device" is equivalent to a conventional "red indicator light" and, by constantly displaying red, makes it possible to visually identify the location of the fire hydrant device within the tunnel. Also, when the transmitter installed in the fire hydrant device is operated, the red display flashes under control of the disaster prevention receiving panel, alerting the user that a fire has occurred in the section where the fire hydrant device is installed.

[0041] In this embodiment, the display device, which displays a red light indicating the installation location, is positioned on the upper corner where the front of the housing and one of the sides facing the direction of vehicle travel intersect, so that the display surface of the display device is positioned from the front to the side, providing high visibility when viewed from the direction toward the front of the fire hydrant device, and at the same time, providing high visibility when viewed from the direction toward the one side facing the direction of vehicle travel in the lane adjacent to the monitor passage, ensuring appropriate visibility that reliably meets the standard that "a red light that can be easily identified from a distance of 10 m should be provided in a direction that is at an angle of 15° or more from the mounting surface (front of the housing)."

[0042] The "display device" of the embodiment is classified into a "landscape display device", a "portrait display device", a "spherical display device" and a "cylindrical display device" depending on the shape of the display body arranged in the corner portion.

[0043] Here, a "horizontally long display device" is one in which the display surface is arranged horizontally at the corner of the housing. This allows a display surface with sufficient length horizontally from the front to the side across the corner to be simply and easily arranged, and even if the display surface does not protrude from the mounting surface (surface of the housing), the large horizontal display area ensures high visibility from the front and sides. In addition, the display surface of the display device is flat, and in particular, it protrudes only slightly from the front, so high visibility can be ensured without hindering the thinning of the fire hydrant device.

[0044] Moreover, a "vertically long display device" is one in which the display surface is arranged vertically in the corner of the housing. Therefore, a display surface with sufficient length in the vertical direction from the front to the side across the corner can be simply and easily arranged, and even if the display surface does not protrude from the mounting surface (surface of the housing), the large vertical display area ensures high visibility from the front and sides. In addition, the display surface of the display device is flat, and in particular, the protrusion width from the front is very small at most, so high visibility can be ensured without preventing the fire hydrant device from being made thinner.

[0045] In addition, in the case of a "vertical display device," a response lamp that is turned on when the transmitter is operated may be disposed below or above the vertical display device disposed in the corner. This makes it possible to ensure high visibility from the front and sides for the response lamp as well, just like the display device.

[0046] In addition, in the case of a "landscape display device" and a "portrait display device," a cylindrical protrusion may be provided in the vertical direction of the connecting portion where the front and side display surfaces intersect. This makes it possible to further improve visibility when the mounting surface is viewed from an oblique side by using a cylindrical protrusion, compared to when the intersection portion at the corner portion of the front display surface and the side display surface is made orthogonal or curved (chamfered).

[0047] A "spherical display device" is a device in which a spherical display body is placed in a corner of a housing, so that a display surface that appears spherical and large enough faces the display surface when viewed from any position from the front to the side of the housing, ensuring high visibility.

[0048] A "cylindrical display device" is a device in which a cylindrical display body is placed vertically in a corner of a housing, so that a display surface that appears to be a sufficiently large vertically long rectangle faces the housing from any position, from the front to the side, ensuring high visibility.

[0049] Furthermore, in the display device, the protruding width of the display body arranged in the corner of the housing from the front surface of the housing is equal to or less than a predetermined width that is sufficiently smaller than the depth of the housing. For example, if the depth of the housing is about 20 to 25 inches corresponding to the storage of a fire extinguisher, which is the largest device to be stored, the protruding width of the cylindrical or spherical display body from the front surface of the housing is, for example, 2 to 2.5 centimeters or less, which is 1 / 10 or less, and even if the cylindrical or spherical display body is arranged in the corner, high visibility of the display device can be ensured without compromising the thinness of the fire hydrant device.

[0050] The housings of the fire hydrant device are arranged side by side in the opposite direction to the vehicle travel direction, with a first housing housing a specified fire hydrant device including a fire hose, a second housing housing a specified electrical device including a transmitter, and a third housing housing a fire extinguisher, and the display device is arranged on the upper side of a corner of the third housing (fire extinguisher housing). This makes it possible to simply and easily arrange the display device on the upper side of the corner without interfering with the fire extinguisher storage space of the third housing or the arrangement of the fire extinguisher door.

[0051] The housings of the fire hydrant device are arranged side by side in the opposite direction to the vehicle travel direction, with a first housing housing a specified fire hydrant device including a fire hose, a third housing housing a fire extinguisher, and a second housing housing a specified electrical equipment including a transmitter, and the display device is arranged on the upper side of a corner of the second housing (electrical equipment housing). Therefore, by switching the second and third housings and arranging the second housing (electrical equipment housing) at the end of the housings, and since the display device showing the installation location is a type of electrical equipment, the display device is arranged on the upper side of the corner of the second housing without affecting the first or third housing, and high visibility can be ensured without compromising the thinness of the fire hydrant device.

[0052] Specific embodiments will be described below. In the specific embodiments shown below, a display device that displays in red to indicate the installation location is basically placed on the upper corner of the third housing (fire extinguisher housing) in which the fire extinguisher is stored, and the display device will be described as a "horizontal display device", a "portrait display device", a "spherical display device", and a "cylindrical display device".

[0053] [Specific details of the embodiment] An embodiment of a fire hydrant device will be described below. The contents will be described separately as follows. a. Fire hydrant equipment a1. Overview of fire hydrant equipment a2. Installation of fire hydrant equipment a3. Thinner fire hydrant equipment b. Landscape display device b1. Landscape display layout b2. Structure of landscape display device b3. Visibility of landscape display devices c. Modification of landscape display device c1. Other layouts for landscape displays c2. Cylindrical protrusion of display body c3, triangular shape of the body d. Portrait display device e. Spherical display device f. Cylindrical display device g. Other embodiments of the fire hydrant device h. Modifications of the present invention

[0054] [a. Fire hydrant equipment] An embodiment of a fire hydrant device will be described. The fire hydrant device is provided with a display device that displays in red color to indicate the installation location, on the upper side of a corner where the front face of a housing intersects with one side face facing the vehicle travel direction.

[0055] (a1. Overview of fire hydrant equipment) First, an overview of the fire hydrant device will be described with reference to Fig. 1, which shows an embodiment of the fire hydrant device installed on the road surface of the guard passage from the front in a state in which it is installed in a tunnel, and Fig. 2, which shows the fire hydrant device of Fig. 1 from the left side.

[0056] 1 and 2, the XYZ directions are mutually orthogonal directions, and specifically, when looking at the front face of the fire hydrant device 10 from the front, the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-rear direction. In addition, the +X side in the X direction is the right side, the -X side is the left side, the +Y side in the Y direction is the upper side, the -Y side is the lower side, and the +Z side in the Z direction is the front side, and the -Z side is the rear side. This also applies to Figs. 3 to 15 which are embodiments of the present invention.

[0057] As shown in FIG. 1, the fire hydrant device 10 is installed on a stand 32 installed on the road surface of the monitor passage 34, and the housing of the fire hydrant device 10 is divided into a first housing 12a, a second housing 12b, and a third housing 12c, and a decorative frame is attached to the front of each.

[0058] A door opening 13 is formed on the front surface of the first housing 12a, and below the door opening 13 is a fire hydrant door 14 that opens downward around its lower end as an axis via hinges 14a when the lock is released by operating the door opening / closing handle 1410.

[0059] A maintenance door 15 that opens upward with its upper end as an axis by a hinge 15a is disposed above the door opening 13 of the first housing 12a. The upwardly opened maintenance door 15 is kept open by a stay (support rod) disposed inside the door.

[0060] In the fire hydrant storage section inside the first housing 12a, for example, a fire hose equipped with a water discharge nozzle is stored inward in the lower hose storage section, and valves such as a fire hydrant valve are stored in the upper valve storage section. Also, a fire hydrant valve opening / closing lever, a water supply hydrant, and a pump start switch are provided inside the fire hydrant door 14 of the fire hydrant storage section.

[0061] On the right side of the front door opening of the second housing 12b, there is an electrical door 18 that opens sideways to the right using a hinge 18a, and on the left side there is an auxiliary door 20 that opens sideways to the left using a hinge 20a to allow access to the internal terminal boxes 28a, 28b.

[0062] The electrical door 18 is provided with, for example, a transmitter 22 and a response lamp 24 as electrical equipment, and is provided with a telephone jack 26 on the inside. When the transmitter 22 is pressed in the event of a fire or the like and the push button switch is turned on, it transmits a transmission signal, which is received by a disaster prevention receiving panel installed in an electrical room or the like and outputs a fire alarm, and the fire hydrant device 10, which receives a response signal from the disaster prevention receiving panel, turns on the response lamp 24.

[0063] A high-voltage terminal box 28a and a low-voltage terminal box 28b are arranged vertically on the rear surface of the second housing 12b opposite the auxiliary door 20. The high-voltage terminal box 28a uses a built-in terminal block to connect a high-voltage cable drawn from outside the fire hydrant device 10 to a display device that displays in red to indicate the installation location, which will be described later. The low-voltage terminal box 28b uses a built-in terminal block to connect a low-voltage cable drawn from outside the fire hydrant device 10 to the transmitter 22, the response lamp 24, the telephone jack 26, etc.

[0064] A fire extinguisher door 16 that opens sideways to the left on hinges 16a is disposed at the front door opening of the third housing 12c, and two fire extinguishers 17 are stored in a fire extinguisher storage section inside the third housing 12c. A door opening / closing handle 1610 is provided on the fire extinguisher door 16, which opens the closed fire extinguisher door 16 by, for example, magnetic attraction. A viewing window 1612 is provided on the fire extinguisher door 16, which allows the presence or absence of the fire extinguisher 17 to be confirmed from the outside.

[0065] A landscape display device 30 that functions similarly to a conventional red indicator light is disposed above a corner portion 50 where a front surface 46 and a side surface 48 of the third housing 12c intersect. Here, the side surface 48 of the third housing 12c is the side surface (left side surface) of the housing that faces the traveling direction (right direction) of a vehicle traveling in the lane in front of the fire hydrant device 10 in the tunnel, and is the side surface that is visible to the driver of a vehicle traveling in the tunnel.

[0066] The landscape display device 30 has landscape display surfaces arranged on the front 46 and side 48, and is always displayed in red, so that the location of the fire hydrant device 10 can be confirmed from a distance. When a fire occurs, the transmitter 22 provided in the second housing 12c is pressed to transmit a transmission signal, and when a fire alarm is output from a disaster prevention receiving panel installed in an electrical room or the like that receives this signal, the red display on the landscape display device 30 flashes under the control of the disaster prevention receiving panel, thereby notifying the occurrence of a fire. Similarly, when a fire is detected by a fire detector installed in the tunnel, the red display on the landscape display device 30 flashes in the same manner. As in the past, the horizontal display devices 30 of the fire hydrant devices 10 installed in the tunnel are connected to the high-voltage signal line that supplies 100V AC from the disaster prevention receiving panel. Therefore, when a fire is confirmed by the disaster prevention receiving panel, the disaster prevention receiving panel controls the power supply to the high-voltage signal line to be disconnected at predetermined intervals, causing the horizontal display devices 30 of all the fire hydrant devices 10 installed in the tunnel to flash simultaneously, alerting the user that a fire has occurred.

[0067] (a2. Installation of fire hydrant equipment) Next, the installation of the fire hydrant device in the guard passage will be described. As shown in Fig. 2, a road 38 is constructed in the longitudinal direction of the tunnel (left and right direction in Fig. 1) under the cylindrical (circular cross section) tunnel body constructed by the shield method, and a guard passage 34 is constructed at a predetermined height above the road 38 under the tunnel wall 25 along the road 38. The inside of the guard passage 34 is a duct in which a water supply main pipe 40 and cables are laid, and a water supply pipe 36 branches off from the water supply main pipe 40 and is drawn into the fire hydrant device 10.

[0068] Since it is difficult to cut out a box from the tunnel wall 25 by the shield construction method to install the fire hydrant device 10, the stand 32 is installed close to the tunnel wall 25 on the road surface of the guard passage 34, and the connected first housing 12a, second housing 12b, and third housing 12c are attached and fixed on the stand 32 to install the fire hydrant device 10. In addition, the upper part of the fire hydrant device 10 is fixed to the tunnel wall 25 by the housing support member 42 to prevent it from falling forward.

[0069] Here, the height of the stand 32 is set so that the height from the road surface of the monitor's passage 34 to all operation objects, including the transmitter 22 and the water discharge nozzle, etc., arranged on the fire hydrant device 10, falls within the legally prescribed proper operation range. As is well known, when the road surface of the monitor's passage 34 is taken as the standing position of road users, the legally prescribed proper operation range has a lower limit height H1 from the road surface of 800 mm and an upper limit height H2 of 1500 mm, and therefore the vertical width Hw of the proper operation range is 700 mm.

[0070] In order to ensure that the entire vertical width of the hose storage section formed below the fire hydrant storage section (inside the first housing 12a) of the fire hydrant device 10 falls within the vertical width Hw (=700 mm) of the proper operation range, the installation height of the fire hydrant device 10 on the stand 32, i.e., the height from the road surface of the monitor passage 34 to the bottom surface of the fire hydrant device 10 (bottom surface of the housing), is 800 mm, the same as the lower limit H1 of the proper operation range.

[0071] As shown in FIG. 2, the side shape of the frame 32 in this embodiment is an inverted trapezoid with the top side longer than the bottom side, and the rear side is an inclined surface that slopes diagonally downward along the curved shape of the tunnel wall surface 25.

[0072] (a3. Thinner fire hydrant equipment) Next, the thinning of the fire hydrant device will be described. As shown in Fig. 2, in order to reduce the restriction on the passage width of the monitor passage 34 caused by the protrusion (projection) of the fire hydrant device 10 installed on the road surface of the monitor passage 34 by the stand 32 from the tunnel wall surface 25, the fire hydrant device 10 is made as thin as possible.

[0073] Among the equipment stored in the fire hydrant device 10, the fire extinguisher 17 stored in the third housing 12c has the largest front-to-rear size, and since the thickness (width in the front-to-rear direction) of the fire hydrant device 10 can be made thin enough to accommodate the fire extinguisher 17 in the third housing 12c, the width (depth) of the fire hydrant device 10 is set to a predetermined width corresponding to the outer diameter of the fire extinguisher 17 stored in the third housing 12c.

[0074] The outer diameter of the fire extinguisher 17 is about 160 to 180 mm, and when a gap is secured so that the stored fire extinguisher does not come into contact with the third housing 12c, the minimum width (minimum thickness) of the fire hydrant device 10 is, for example, 250 mm or less, and the width of the fire hydrant device 10 is set to, for example, 200 mm. In contrast, the width of a conventional fire hydrant device 10 that is installed by cutting a box out of the wall surface of a tunnel body and embedding it therein is 300 mm or more, so the fire hydrant device 10 of this embodiment is thinner than the conventional device by reducing its width.

[0075] In addition, in order to store a fire hose of the same specified length as a conventional fire hydrant device, for example a 30 m shape-retaining hose, in an inwardly rolled state, the first casing 12a of the fire hydrant device 10 has a larger width (left-right width) than that of a conventional fire hydrant device, making it possible to store a shape-retaining hose of the same specified length as a conventional fire hydrant device in an inwardly rolled state.

[0076] In addition, in conventional fire hydrant devices, terminal boxes 28a, 28b were arranged on the rear surface of the housing at the rear of the fire extinguisher storage section in which the fire extinguisher is stored, but as the fire hydrant device 10 has been made thinner, it has become impossible to arrange the terminal boxes 28a, 28b on the rear surface of the housing at the rear of the fire extinguisher storage section. Therefore, the width (left-right width) of the second housing 12b in which the electrical equipment is provided has been expanded to a width that allows the electrical equipment and terminal boxes to be arranged.

[0077] [b. Landscape display device] Next, the landscape display device installed on the upper side of the corner of the housing will be described. In this description, reference will be made to Fig. 3, which shows the housing in which the landscape display device is installed in Fig. 1, Fig. 4, which shows the landscape display device, and Fig. 5, which shows the visibility of the landscape display device when the fire hydrant device is viewed from above. Fig. 4(A) shows the plan view of the landscape display device, and Fig. 4(B) shows the front view of the landscape display device.

[0078] (b1.Layout of landscape display devices) As shown in FIG. 3, the third housing 12c equipped with a fire extinguisher storage section has a fire extinguisher door 16 arranged on its front surface 46, and a horizontally elongated display device 30 arranged on the upper side of a corner portion 50 where the front surface 46 and a side surface 48 of the third housing 12c intersect.

[0079] The landscape display device 30 is equipped with a landscape L-shaped display cover 3014 as a display body for displaying red color, and the L-shaped display cover 3014 has a front display surface 3010 formed along the front surface 46, and a side display surface 3012 formed along the side surface 48 continuous with the front display surface 3010. The L-shaped display cover 3014 is made of a red light-transmitting synthetic resin such as an acrylic resin.

[0080] In addition, the horizontally long display device 30 has the main body 3016 stored in the third housing 12c, and in order to secure space for placing the front display surface 3010, a door cutout portion 1614 is formed by cutting out the left upper end of the fire extinguisher door 16.

[0081] The vertical width of the front display surface 3010 and the side display surface 3012 is arbitrary, but the door cutout 1614 is provided in the fire extinguisher door 16, so that the vertical width is sufficient to enable visibility from a distance, and for example, the vertical width is at least several centimeters. The width of the front display surface 3010 is also arbitrary, but is a predetermined width that does not exceed the width of the front surface 46 of the third housing 12c, and is preferably about 10 centimeters. The width of the side display surface 3012 is also arbitrary, but is a predetermined width that does not exceed the width (depth) of the side surface 48 of the third housing 12c, and is preferably about 10 centimeters, for example, similar to the front display surface 3010.

[0082] The landscape display device 30 ensures a sufficient display area and achieves high visibility from the front and sides by setting the vertical and horizontal widths of the front display surface 3010 and the side display surface 3012. The front display surface 3010 is flush with the front surface 46, which is the mounting surface, but may protrude slightly, for example, by about 1 to 2 centimeters, as long as the thinness of the fire hydrant device 10 is not impaired.

[0083] (b2. Structure of landscape display device) As shown in Fig. 4, the main body 3016 of the landscape display device 30 has a flat box shape, a waterproof structure, and is fixed in the housing by an appropriate means such as spot welding or screw fastening. An L-shaped display cover 3014 having a front display surface 3010 and a side display surface 3012 is arranged on the front and side of the main body 3016, an L-shaped circuit board 3018 is arranged behind it, and a plurality of LEDs 3020 functioning as light-emitting elements are arranged on the board surface of the circuit board 3018 facing the L-shaped display cover 3014. A wiring cable 3022 is drawn out from the circuit board 3018 via a waterproof wiring drawer 3024 to the outside, and is connected to a terminal box 28b provided in the second housing 12c in Fig. 1.

[0084] (b3. Visibility on landscape display devices) 5, when the fire hydrant device 10 is viewed from above, the landscape display device 30 disposed in the corner portion 50 of the third housing 12c has a front display surface 3010 located in front of the corner portion 50, followed by a side display surface 3012 located on a side surface of the corner portion 50. For this reason, the front display surface 3010 located on the front surface of the housing ensures sufficiently high visibility when viewed from the front.

[0085] In addition, when the line of sight 52 is set in the right direction at an angle of 15° from the mounting surface starting from the center of the front display surface 3010, if the width of the front display surface 3010 is L, the display width W is W=Ltan(15°) Here, if the width L of the front display surface 3010 is, for example, L = 10 cm, the display width W as seen from a direction 15 degrees to the right is about 2.7 centimeters, which certainly satisfies the condition that "it can be easily identified from a distance of 10 m along a direction at an angle of 15 degrees or more from the mounting surface of the front display surface 3010."

[0086] In addition, if the line of sight 54 is set to the left, starting from the center of the forward display surface 3010 and at an angle of 15° from the mounting surface, the condition that "it can be easily identified from a distance of 10 m along a direction at an angle of 15° or more from the mounting surface of the forward display surface 3010" is similarly reliably met.

[0087] Furthermore, according to the line of sight 54 in the left direction, which is at an angle of 15° from the mounting surface, the display width that can be seen is not only the front display surface 3010 but also almost the entire width of the side display surface 3012, and sufficiently high visibility is ensured for the line of sight 54 in the left direction, which is at an angle of 15° from the mounting surface. Such display by the side display surface 3012 greatly contributes to ensuring visibility for drivers of vehicles traveling in the lane in front of the fire hydrant device 10 in a tunnel.

[0088] [c. Variation of landscape display device] Next, modified examples of the landscape display device will be described. In this description, reference will be made to Fig. 6 showing another arrangement of the landscape display device, Fig. 7 showing an embodiment of a landscape display device with cylindrical protrusions at the corners, and Fig. 8 showing an embodiment of a landscape display device with a triangular main body. Figs. 7(A) and 8(A) show the plan view of the landscape display device, and Figs. 7(B) and 8(B) show the front view.

[0089] (c1. Other layouts for landscape displays) As shown in Fig. 6, in the horizontal fire hydrant device 30 of this embodiment, the horizontal display device 30 is disposed above the fire extinguisher door 16 at the corner portion 50 of the third housing 12c. Here, the fire extinguisher door 16 provided on the front surface of the third housing 12c has a door frame 1618 on the upper side of the door opening that is usually several centimeters in vertical width. Therefore, by setting the vertical width of the horizontal display device 30 within the vertical width of the door frame 1618, it becomes possible to install the horizontal display device 30 without providing the door cutout portion 1614 on the fire hydrant door 16 as shown in Fig. 3.

[0090] For this reason, the vertical width of the horizontally long display device 30 of this embodiment is smaller than that of the horizontally long display device 30 of Fig. 3, but since the difference is only about 1 to 2 centimeters, the same visibility is ensured, and the structure can be simplified by not having to cut out and modify the fire hydrant door 16. Since the other structure is the same as that of the embodiment of Fig. 3, the same reference numerals are used and the description is omitted.

[0091] (c2. Cylindrical protruding part of the display body) 7, in the landscape display device 30 of this embodiment, a cylindrical protrusion 3026 is provided in the vertical direction of the corner portion (connected portion) where the front display surface 3010 and the side display surface 3012 intersect. Since the other structure is similar to that of the portrait display device 30 shown in FIG. 4, the same reference numerals are used and the description is omitted.

[0092] In this way, when a cylindrical protrusion 3026 having a protruding width ΔL from the front display surface 3010 is provided at the corner where the front display surface 3010 and the side display surface 3012 intersect, as shown in Figure 4, the cylindrical protrusion 3026 makes it possible to further improve visibility when viewed from an oblique side of the mounting surface of the horizontally long display device 30, compared to when the corner portions of the front display surface 3010 and the side display surface 3012 are made orthogonal or curved (R-chamfered).

[0093] (c3. Triangular shape of the body) As shown in Fig. 8, in the landscape display device 30 of this embodiment, the planar shape of the main body 3016 is changed from the rectangular box shape shown in Fig. 4 to a triangular box shape. Since the other structures are similar to those of the portrait display device 30 shown in Fig. 4, the same reference numerals are used and the description is omitted.

[0094] In this way, by making the main body 3016 of the horizontally long display device 30 into a triangular box shape, when it is placed above the corner portion 50 of the third housing 12c, as shown in Figure 3, the space that the main body 3016 occupies within the third housing 12c is reduced to approximately half, thereby reducing the degree to which the fire extinguisher storage space in the third housing 12c is restricted and making it possible to not interfere with the storage of the fire extinguisher 17.

[0095] [d. Vertical display device] Next, the portrait display device will be described with reference to FIG. 9 which shows the housing of the fire hydrant device on which the portrait display device is installed.

[0096] As shown in FIG. 9, a vertically long display device 60 is disposed on the upper side of a corner portion 50 where a front surface 46 and a side surface 48 of a third housing 12c having a fire extinguisher storage portion intersect.

[0097] The vertically long display device 60 is provided with a vertically long L-shaped display cover 6014 as a display body for displaying red color. The L-shaped display cover 6014 has a front display surface 6010 formed along the front surface 46, and a side display surface 6012 formed along the side surface 48 continuous with the front display surface 6010, and is made of a red light-transmitting synthetic resin such as an acrylic resin.

[0098] Moreover, the vertically long display device 60 has a main body 6016 housed in the third housing 12c. An L-shaped circuit board is housed in the main body 6016, and LEDs are arranged as a plurality of light-emitting elements on the board surface of the circuit board facing the inside of the front display surface 6010 and the side display surface 6012.

[0099] The width of the front display surface 6010 is arbitrary, but is the same as the width of the door frame 1616 between the door opening of the fire extinguisher door 16 and the corner portion 50, and is, for example, about several centimeters. The vertical width of the front display surface 6010 is also arbitrary, and there is no restriction on the vertical width of the front display surface 6010 arranged on the door frame 1616, but is preferably about 10 centimeters. The width and vertical width of the side display surface 6012 are also arbitrary, but in this embodiment, they are the same as the width and vertical width of the front display surface 6010.

[0100] The vertically long display device 60 achieves high visibility from the front and sides by setting the vertical and horizontal widths of the front display surface 6010 and the side display surface 6012. The front display surface 6010 is flush with the front surface 46, which is the mounting surface, but may protrude slightly, for example, by about 1 to 2 centimeters, as long as it does not impair the thinness of the fire hydrant device 10 and does not prevent the opening of the fire extinguisher door 16.

[0101] In addition, the side display surface 6012 has a display width that allows almost the entire vertical width to be seen when viewed from the side and from an oblique side, ensuring sufficiently high visibility when viewed from the side and from an oblique side, which greatly contributes to ensuring visibility for drivers of vehicles traveling in the lane in front of the fire hydrant device 10 inside the tunnel.

[0102] In this embodiment, a response lamp 64 is disposed below the vertical display device 60. The vertical width of the response lamp 64 is smaller than that of the vertical display device 60, and an L-shaped display cover is disposed thereon to improve visibility when viewed from the front and sides.

[0103] Here, the main body of the response lamp 64 is shared by extending the main body 6016 of the portrait display device 60 downward, and a circuit board with an LED mounted thereon is housed to separate the portrait display device 60 and the response lamp 64. Note that the response lamp 64 may not be provided, and only the portrait display device 60 may be provided.

[0104] [e. Spherical display device] Next, the spherical display device will be described. In this description, reference will be made to Fig. 10, which shows the housing of the fire hydrant device in which the spherical display device is installed, Fig. 11, which shows the installation part of the spherical display device, and Fig. 12, which shows the internal structure of the spherical display device. Fig. 11(A) shows the plan view of the spherical display device, Fig. 11(B) shows the front view, and Fig. 11(C) shows the side view.

[0105] As shown in FIG. 10, a spherical display device 70 is disposed on the upper side of a corner portion 50 where a front surface 46 and a side surface 48 of a third housing 12c having a fire extinguisher storage portion intersect.

[0106] The spherical display device 70 has a spherical display cover 7014 of a predetermined radius, which is made of a red translucent synthetic resin such as acrylic resin, disposed at the corner portion 50 as a display body for displaying red.

[0107] Here, as shown in the plan view of Figure 11(A), when the spherical display cover 7014 is viewed toward the front surface 46 of the third housing 12c, the surface is the front display surface 7010, and when the spherical display cover 7014 is viewed toward the side surface 48, the surface is the side display surface 7012, and the front display surface 7010 and the side display surface 7012 overlap partially at the corner portion 50.

[0108] The spherical display cover 7014 is disposed on the main body 7016. The main body 7016 is disposed at a position extending from the upper side of the door frame 1616 on the corner portion 50 side of the fire extinguisher door 16 provided on the front surface 46 of the third housing 12c to the side surface 48. In detail, as shown in Fig. 11(A), the center 7015 of the spherical display cover 7014 is located inside the third housing 12c and disposed so as to restrict the width of protrusion from the front surface 46 and increase the width of protrusion from the side surface 48.

[0109] 12, the internal structure of the spherical display device is a hemispherical spherical display cover 7014 with a main body 7016 disposed at the rear. A spherical circuit board 7018 is disposed inside the main body 7016, and a plurality of LEDs 7020 are disposed as light-emitting elements on the outer spherical surface of the circuit board 7018. A wiring cable 7022 is led out from the circuit board 7018 through a waterproof wiring lead-out portion 7024 to the outside, and is connected to the terminal box 28b shown in FIG.

[0110] 11(A) and (C), the spherical display device 70 is arranged so that the projection width ΔL of the front display surface 7010 from the front surface 46, which is the mounting surface when the spherical display device 70 is arranged at the corner portion 50 of the third housing 12c, is a predetermined projection width or less, for example, a projection width of 1 to 2 centimeters or less. Thus, even if the spherical display device 70 is arranged, the thinness of the fire hydrant device 10 is not impaired and the opening of the fire extinguisher door 16 is not hindered.

[0111] The radius of the spherical display cover 7014 is arbitrary, but is equal to or less than the width of the door frame 1616 on the corner portion 50 side of the fire hydrant door 18 on which the spherical display device 70 is disposed, and is, for example, a radius of about several centimeters. Therefore, as shown in Fig. 11(B), when the spherical display device 70 is viewed toward the front surface 46, the front display surface 7010, including the side display surface 7012, appears to be a substantially circular shape with a diameter of about 10 centimeters, realizing high visibility from the front and diagonally forward.

[0112] 11(C), when the spherical display device 70 is viewed from the side surface 48, the side display surface 7012 also appears to be a circle with a diameter of about 10 centimeters, ensuring sufficiently high visibility when viewed from the side and obliquely from the side, which contributes greatly to ensuring visibility for drivers of vehicles traveling in the lane in front of the fire hydrant device 10 in the tunnel. Note that, although the spherical display cover 7014 is a sphere in this embodiment, it is not limited to this and may be an ellipsoid, an oval sphere, or a polyhedron.

[0113] [f. Cylindrical display device] Next, the cylindrical display device will be described. In this description, reference will be made to Fig. 13, which shows the housing of the fire hydrant device in which the cylindrical display device is installed, and Fig. 14, which shows the installation part of the cylindrical display device. Fig. 14(A) shows the plan view of the cylindrical display device, Fig. 14(B) shows the front view, and Fig. 14(C) shows the side view.

[0114] As shown in FIG. 13, a cylindrical display device 80 is disposed on the upper side of a corner portion 50 where a front surface 46 and a side surface 48 of a third housing 12c having a fire extinguisher storage portion intersect.

[0115] The cylindrical display device 80 has a cylindrical display cover 8014 of a predetermined radius, which is made of a red light-transmitting synthetic resin such as acrylic resin, disposed at the corner portion 50 as a display body for displaying red color.

[0116] Here, as shown in the plan view of Figure 14(A), the surface of the cylindrical display cover 8014 when viewed toward the front surface 46 of the third housing 12c is the front display surface 8010, and the surface of the cylindrical display cover 8014 when viewed toward the side surface 48 is the side display surface 8012, and the front display surface 8010 and the side display surface 8012 partially overlap at the corner portion 50.

[0117] The cylindrical display cover 8014 is disposed on the main body 8016. The main body 8016 is disposed at a position extending from the upper side of the door frame 1616 on the corner portion 50 side of the fire extinguisher door 16 provided on the front surface 46 of the third housing 12c to the side surface 48. In detail, as shown in Fig. 14(A), the center 8015 of the cylindrical display cover 8014 is located inside the third housing 12c and disposed so as to restrict the width of protrusion from the front surface 46 and to increase the width of protrusion from the side surface 48.

[0118] The internal structure of the cylindrical display device 80 is such that a cylindrical circuit board is disposed inside the main body 8016, and a plurality of LEDs are disposed as light-emitting elements on the outer peripheral surface of the circuit board. A wiring cable is drawn from the circuit board to the outside through a waterproof wiring drawer and connected to the terminal box 28b shown in FIG.

[0119] 14(A) and (C), the cylindrical display device 80 is arranged so that the projection width ΔL of the front display surface 8010 from the front surface 46, which is the mounting surface when the cylindrical display device 80 is arranged at the corner portion 50 of the third housing 12c, is a predetermined projection width or less, for example, a projection width of 1 to 2 centimeters or less. Thus, even if the cylindrical display device 80 is arranged, the thinness of the fire hydrant device 10 is not impaired and the opening of the fire extinguisher door 16 is not hindered.

[0120] The radius of the cylindrical display cover 8014 is arbitrary, but is equal to or less than the width of the door frame 1616 on the corner portion 50 side of the fire hydrant door 18 on which the spherical display device 70 is disposed, and is, for example, a radius of about several centimeters. The vertical width of the cylindrical display cover 8014 is not limited, but is, for example, about 10 centimeters. Therefore, as shown in FIG. 14(B), when the cylindrical display device 70 is viewed toward the front surface 46, the front display surface 8010 is a vertically long rectangular display surface with a width of about 7 to 8 centimeters and a height of about 10 centimeters, realizing high visibility from the front and diagonally forward.

[0121] 14(C), the side display surface 8012 when the cylindrical display device 80 is viewed from the side surface 48 also becomes a rectangular display surface that is long in the vertical direction and has a width of about 7 to 8 centimeters and a length of about 10 centimeters, and sufficiently high visibility is ensured when viewed from the side and from an oblique side, which contributes greatly to ensuring visibility for drivers of vehicles traveling in the lane in front of the fire hydrant device 10 in the tunnel. Note that, although the cylindrical display cover 8014 is cylindrical in this embodiment, it is not limited to this and may be a polygonal tube.

[0122] [g. Other embodiments of the fire hydrant device] Next, another embodiment of the fire hydrant device will be described with reference to Fig. 15 which shows another embodiment of the fire hydrant device in which the second housing is disposed on the left side.

[0123] As shown in Fig. 15, the fire hydrant device 10 of this embodiment has a first housing 12a, which is a storage section for storing the fire hydrant device, a third housing 12c, which stores a fire extinguisher 17, and a second housing 12b, which stores predetermined electrical equipment including a transmitter 22, arranged side by side in the opposite direction (left direction) to the vehicle travel direction of the lane, and is different from the embodiment of Fig. 1 in that the positions of the second housing 12b and the third housing 12c are exchanged and the second housing 12b is located at the left end. For this reason, for example, a landscape display device 30 is arranged on the upper side of the corner portion 50 of the second housing 12b located at the left end as a display device showing the installation location.

[0124] Here, the third housing 12c has a restriction on the width of the door frame in order to secure the size of the fire extinguisher door 16 that stores the fire extinguisher 17 so that it can be freely removed, whereas the second housing 12b, which stores the electrical equipment including the transmitter 22 and the terminal boxes 28a, 28b, has fewer restrictions on the vertical width of the electrical door 18 and the auxiliary door 20, and therefore it is possible to secure a space for installing the horizontally long display device 30 above the corner portion 50 without providing a notch or the like in the door. Also, since the conventional red indicator light that indicates the location was provided on the electrical door 18 of the second housing 12b, it is appropriate to provide the horizontally long display device 30 on the second housing 12b.

[0125] For this reason, in this embodiment, the vertical width of the upper door frame 1618 of the corner portion of the second housing 12b is sufficiently secured, and it is possible to arrange a landscape display device 30 having a display surface with a sufficient vertical width. Since other points are the same as those of the fire hydrant device 10 in Fig. 1, the same reference numerals are used and the description is omitted.

[0126] Also, Figure 15 shows an example in which a horizontally elongated display device 30 is arranged on the upper side of the corner portion of the second housing 12b, but it also includes cases in which the previously described vertically elongated display device 60, spherical display device 70 or cylindrical display device 80 is similarly arranged.

[0127] [h. 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.

[0128] (Fire hydrant installed by wall-mounted structure) The above embodiment has been described as an example of a fire hydrant device installed in a stationary structure in which a stand is installed on the road surface of the monitor's passage and the fire hydrant device is attached and fixed to the installed stand, but this is not limited to this, and the same can be applied to a fire hydrant device installed in a wall-mounted structure in which a stand is installed on the tunnel wall and the fire hydrant device is attached and fixed to the installed stand.

[0129] (Fire hydrant housing) In the above embodiment, the electrical equipment is arranged in the second housing and the fire extinguisher is stored in the third housing, but in the fire hydrant device of Figure 1, the second housing and the third housing may be a single housing.

[0130] (others) Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited to the numerical values ​​shown in the above embodiment. [Explanation of symbols]

[0131] 10: Fire hydrant equipment 12a: First cabinet 12b: Second cabinet 12c: 3rd cabinet 14: Fire hydrant door 1410, 1610: Door opening and closing handle 15: Maintenance door 16: Fire extinguisher door 1612: Peephole 1614: Door cutout 1616, 1618: Door frame 17: Fire extinguisher 18: Electric door 20: Auxiliary door 22: Transmitter 24,64:Answer lamp 25: Tunnel wall 26: Telephone Jack 28a, 28b: Terminal box 30: Landscape display device 3010,6010,7010,8010:Front display surface 3012,6012,7012,8012: Side display surface 3014, 6014: L-shaped display cover 3016, 6016, 7016, 8016: Main unit 3018: Circuit board 3020: LED 3022, 7022: Wiring cable 3024, 7024: Waterproof wiring pull-out section 3026: Cylindrical protrusion 32: Stand 34: Guard passage 36: Water supply pipe 38: Road 40: Water main 42: Housing support member 42: Hose storage section 44: Valve storage section 46:Front 48: Side 50: Corner section 52: Hose connection pipe 60:Portrait display device 70: Spherical display device 7014: Spherical display cover 80: Cylindrical display device 8014: Cylindrical display cover

Claims

1. A fire hydrant device in which a housing containing a predetermined fire hydrant device is installed at a predetermined height above the road surface of a guard passage provided along the wall surface of a tunnel having a road, close to or in contact with the tunnel wall surface, A fire hydrant device characterized in that a display device that displays in red to indicate the installation location is provided on the upper side of the corner where the front of the housing intersects with one of the sides facing the vehicle travel direction.

2. The fire hydrant device according to claim 1, The fire hydrant device is characterized in that the display device has a display surface arranged horizontally in a corner portion of the housing.

3. The fire hydrant device according to claim 1, The fire hydrant device is characterized in that the display device has a display surface arranged vertically in a corner portion of the housing.

4. The fire hydrant device according to claim 3, A fire hydrant device characterized in that a response lamp that is lit when a transmitter is operated is disposed below or above the display device.

5. The fire hydrant device according to claim 2 or 3, The fire hydrant device is characterized in that the display device has a cylindrical protrusion in the vertical direction of the connecting portion where the front and side display surfaces intersect.

6. The fire hydrant device according to claim 1, The fire hydrant device is characterized in that the display device has a spherical display body disposed at a corner portion of the housing.

7. The fire hydrant device according to claim 1, The display device is a fire hydrant device characterized in that a cylindrical display body is arranged vertically in a corner portion of the housing.

8. The fire hydrant device according to claim 6 or 7, The display device is a fire hydrant device characterized in that the protrusion width of a display body arranged in a corner portion of the housing from the front surface of the housing is equal to or less than a predetermined width that is sufficiently small compared to the depth width of the housing.

9. The fire hydrant device according to claim 1, The housings are arranged side by side in the opposite direction to the vehicle travel direction, in which a first housing for housing a predetermined fire hydrant device including a fire hose, a second housing for housing a predetermined electrical device including a transmitter, and a third housing for housing a fire extinguisher, The fire hydrant device, characterized in that the display device is arranged on an upper side of a corner portion of the third housing.

10. The fire hydrant device according to claim 1, The housings are arranged side by side in the opposite direction to the vehicle travel direction, in which a first housing for accommodating a predetermined fire hydrant device including a fire hose, a second housing for accommodating a fire extinguisher, and a third housing for accommodating a predetermined electrical device including a transmitter, The fire hydrant device, characterized in that the display device is arranged on an upper side of a corner portion of the third housing.

Images