Fire hydrant system and fire extinguisher box

Abstract

To enable thinning without being constrained by a fire hydrant instrument, electrical instrument, terminal box, and fire extinguisher and the like that are arranged inside a housing.SOLUTION: A fire hydrant device 10 is installed on a platform on the road surface of a monitor passage 35 in a tunnel serving as a fire-extinguishing target region. A housing of the fire hydrant device 10 comprises a first housing 11a in which a fire hydrant instrument is arranged, a second housing 11b in which an electrical instrument and terminal boxes 26a, 26b are arranged, and a third housing 11c in which a fire extinguisher is arranged. The second housing 11b is arranged along the longitudinal direction of the tunnel so as to be positioned at an end, with the adjacent housings installed in a connected state. A first door 18 is provided on the front surface of the second housing 11b corresponding to the arrangement position of the electrical instrument, and a second door 20 is provided on the side surface of the second housing 11b corresponding to the arrangement positions of the terminal boxes 26a, 26b.SELECTED DRAWING: Figure 12

Description

Technical Field

[0001] The present invention relates to a fire hydrant device in which fire hydrant equipment, electrical equipment, a terminal box, and a fire extinguisher are arranged in a housing, and a fire extinguisher box in which electrical equipment, a terminal box, and a fire extinguisher are arranged.

Background Art

[0002] Conventionally, in a tunnel such as a highway or an expressway that is a fire protection target area, a fire hydrant device, which is a kind of disaster prevention equipment storage device shown in FIG. 19, for example, is generally installed by cutting out the wall surface of the tunnel body at intervals of, for example, 50 meters in the longitudinal direction of the tunnel. Incidentally, FIG. 19(A) shows the front surface of the fire hydrant device, and FIG. 19(B) shows a cross section seen from above the fire hydrant device. Incidentally, FIG. 19(B) is a cross section at the position h-h indicated by the broken line in FIG. 19(A).

[0003] Here, in the description of FIG. 19, the X-Y-Z directions are orthogonal to each other. Specifically, when looking at the front surface of the fire hydrant device as the front as shown in FIGS. 19(A) and (B), the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-back direction. Also, 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, the +Z side in the Z direction is the front side, and the -Z side is the rear side. This is the same in FIGS. 1 to 18, which are embodiments of the present invention.

[0004] As shown in FIG. 19, a conventional fire hydrant device 10 includes a fire hose 60 and valves (not shown) as fire hydrant equipment in a fire hydrant storage section 15a in a housing 111a provided with an openable and closable fire hydrant door 12 and a maintenance door 14. Also, for example, two fire extinguishers 72 are stored in a fire extinguisher storage section 15b in a housing 111b provided with an openable and closable fire extinguisher door 16 and an electrical equipment door 180. On the electrical equipment door 180, as electrical equipment, for example, a red indicator lamp 22 whose supplied power is AC100V, a transmitter 24 whose supplied power is DC48V, a response lamp 25, a telephone jack 28 (inside the housing of the electrical equipment door), etc. are provided. Also, in cold regions, a space heater whose supplied power is AC200V is further installed.

[0005] The power supplied to these electrical devices is provided by high-voltage wiring cables (high-voltage cables) and low-voltage wiring cables (low-voltage cables) that are drawn from outside the fire hydrant system 10 to the fire hydrant storage section 15a inside the housing 111a, passing through one of the spaces in the fire hydrant storage section 15a, and being connected via a high-voltage terminal box 26a or a low-voltage terminal box 26b located in the fire extinguisher storage section 15b inside the housing 111b.

[0006] By the way, if it is difficult to create a recessed area (recess) for the fire hydrant device in the wall of the tunnel structure by cutting out a box or the like, the fire hydrant device must be installed exposed on the road surface of the monitoring staff's passage.

[0007] In such cases, a mounting structure has been proposed for wall-mounting fire hydrant devices on the walls of tunnel structures. The mounting structure consists of a main support unit fixed to the wall of the tunnel structure and a posture-holding member that maintains the orientation of the fire hydrant device (Patent Document 2). [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Japanese Patent Publication No. 2016-055073 [Patent Document 2] Japanese Patent Publication No. 2020-078429 [Patent Document 3] Japanese Patent Publication No. 2016-59790 [Patent Document 4] Japanese Patent Publication No. 2021-87891 [Patent Document 5] Japanese Patent Publication No. 2012-75608 [Patent Document 6] Japanese Patent Application Publication No. 11-123248 [Overview of the project] [Problems that the invention aims to solve]

[0009] However, in the case of fire hydrant systems that are wall-mounted on the walls of tunnel structures, installing the fire hydrant system at a predetermined height above the road surface of the monitoring staff passage is quite difficult, and many challenges remain, such as the amount of work and time required.

[0010] Therefore, in order to resolve the problems with the wall-mounted fire hydrant system, it is conceivable to install the fire hydrant system in an exposed state on the road surface of the supervisor's walkway, which is easier to install, in a so-called freestanding structure. However, the installation of the fire hydrant system would restrict the width (front to back) of the supervisor's walkway, and in order to secure the width of the supervisor's walkway, the challenge remains to make the fire hydrant system as thin as possible to minimize its width (front to back). This challenge is also the same for the wall-mounted structure.

[0011] By the way, when making the fire hydrant device 10 thinner, the width of the fire hydrant device 10 is determined by the size of the fire extinguisher 72 housed in the fire hydrant device 10, and the outer diameter of the fire extinguisher 72 is about 150 to 160 mm. For example, taking into consideration that the housed fire extinguisher 72 does not come into contact with the housing 111b, it is possible to make the width of the fire hydrant device 10 thinner to about 180 mm to 200 mm.

[0012] Here, the size of the conventional fire hydrant device 10 is specified in order to standardize the size of the box cutout relative to the wall surface of the tunnel structure, for example, it is approximately 1040 mm (vertical direction) x 1780 mm (horizontal direction) x 300 mm (front-to-back direction), and with a width of approximately 300 mm secured for the fire hydrant device 10, sufficient space is secured to house the fire extinguisher 72 in the fire extinguisher storage section 15b, and to place terminal boxes 26a and 26b on the rear surface inside the housing 111b behind the fire extinguisher 72, and to wire the high-voltage and low-voltage cables that are connected to the terminal boxes 26a and 26b.

[0013] However, when the fire hydrant system 10 is made thinner, its width decreases from 300 mm to approximately 180 mm to 200 mm. This makes it impossible to arrange the fire extinguisher 72 in the fire extinguisher storage section 15b, the terminal boxes 26a and 26b, and the wiring cables in the same way as in the conventional fire hydrant system 10, thus hindering the thinning of the fire hydrant system 10.

[0014] The present invention aims to provide a fire hydrant system and a fire extinguisher box that can be made thinner without being restricted by the fire hydrant equipment, electrical equipment, terminal box, and fire extinguisher that are arranged inside the housing. [Means for solving the problem]

[0015] (Fire hydrant device of the first invention) The present invention relates to a fire hydrant system in which a fire hydrant device, a terminal box, and a fire extinguisher are arranged inside a housing, The casing is, The first enclosure where the fire hydrant equipment is located, A second enclosure in which electrical equipment and terminal boxes are arranged, The third enclosure where the fire extinguisher is located, Composed of, The first, second, and third enclosures are arranged in a predetermined order along a predetermined direction such that the second enclosure is at the end, and adjacent enclosures are installed in a connected state. The second enclosure is characterized by having a first door on the front of the second enclosure corresponding to the placement of electrical equipment, and a second door on the side of the second enclosure where there is no adjacent enclosure, corresponding to the placement of the terminal box.

[0016] (Fire hydrant device of the second invention) The present invention relates to a fire hydrant system in which a fire hydrant device, a terminal box, and a fire extinguisher are arranged inside a housing, The casing is, The first enclosure houses the fire hydrant equipment, electrical equipment, and terminal box, The second enclosure where the fire extinguisher is located, Composed of, The first and second enclosures are arranged and connected along a predetermined one-way direction. The interior of the first housing is divided into a fire hydrant storage section where fire hydrant equipment is arranged and an electrical equipment and terminal box storage section where electrical equipment and terminal boxes are arranged. The fire hydrant storage section and the electrical equipment and terminal box storage section are arranged in a predetermined order along a predetermined one direction within the first housing. A second housing is located on the fire hydrant storage section side of the first housing. A first door is provided on the front surface of the first housing corresponding to the arrangement position of the electrical equipment, and a second door is provided on the side surface of the first housing on the side where the second housing does not exist corresponding to the arrangement position of the terminal box.

[0017] (Fire hydrant device of the third invention) The present invention is a fire hydrant device in which fire hydrant equipment, a terminal box, and a fire extinguisher are arranged in a housing. The housing comprises a first housing where fire hydrant equipment is arranged, and a second housing where electrical equipment, terminal boxes, and fire extinguishers are arranged. The first housing and the second housing are arranged along a predetermined one direction and installed in a connected state. The interior of the second housing is divided into an electrical equipment and terminal box storage section where electrical equipment and terminal boxes are arranged and a fire extinguisher storage section where fire extinguishers are arranged. The electrical equipment and terminal box storage section and the fire extinguisher storage section are arranged in a predetermined order along a predetermined one direction within the second housing. A first housing is located on the fire extinguisher storage section side of the second housing. A first door is provided on the front surface of the second housing corresponding to the arrangement position of the electrical equipment, and a second door is provided on the side surface of the second housing on the side where the first housing does not exist corresponding to the arrangement position of the terminal box. A first door is provided on the front surface of the second housing corresponding to the arrangement position of the electrical equipment, and a second door is provided on the side surface of the second housing on the side where the first housing does not exist corresponding to the arrangement position of the terminal box.

[0018] (Arrangement of terminal box and electrical equipment) The electrical equipment and terminal boxes are arranged along a predetermined one direction or the height direction in the installation state.

[0019] (Fire extinguisher box of the fourth invention) The present invention is a fire extinguisher box in which electrical equipment, terminal boxes, and fire extinguishers are arranged in a housing. The casing is, A first enclosure in which electrical equipment and terminal boxes are arranged, The second enclosure where the fire extinguisher is located, Composed of, The first and second enclosures are arranged in a predetermined order along a predetermined direction and installed in a connected state. The first enclosure is characterized by having a first door on the front of the first enclosure corresponding to the placement of electrical equipment, and a second door on the side of the first enclosure where the second enclosure does not exist, corresponding to the placement of the terminal box.

[0020] Other features of the fire extinguisher box of the present invention are basically the same as those of the fire hydrant system described above, so their explanation will be omitted. [Effects of the Invention]

[0021] (Effects of the fire hydrant device of the first invention) According to the fire hydrant device of the present invention, the housing is composed of a first housing in which the fire hydrant equipment is arranged, a second housing in which the electrical equipment and terminal box are arranged, and a third housing in which the fire extinguisher is arranged, and these are arranged in a predetermined order along a predetermined direction and installed with adjacent housings connected. This makes it possible to make the fire hydrant device thinner without being constrained by the space required for the terminal box and the wiring space for the wiring cables connected to the terminal box, which were factors that made it difficult to make the fire hydrant device thinner in conventional fire hydrant devices.

[0022] Furthermore, by placing the terminal box in the same enclosure as the electrical equipment to which the wiring cables are connected, it becomes possible to shorten the wiring cable length compared to conventional fire hydrant systems where the terminal box was located behind the fire extinguisher, thus simplifying the wiring process.

[0023] Furthermore, because the enclosure is divided according to the components to be placed within it, the configuration of the fire hydrant system can be flexibly changed to meet requirements and specification changes. In addition, by using only the second and third enclosures, for example, the fire hydrant system can be replaced with a fire extinguisher box, allowing for equipment sharing and cost reduction. Moreover, it is possible to flexibly respond to equipment changes due to tunnel grade upgrades or downgrades at the work site.

[0024] The effects of the fire hydrant device of the first invention described above also apply to the fire hydrant devices of the second and third inventions.

[0025] (Effects of the slimmed-down fire hydrant system) Furthermore, because the fire hydrant system can be made thinner without being limited by the space required for the terminal box and the wiring space for the cables connected to the terminal box, it is possible to thin the fire hydrant system to a predetermined width corresponding to the outer diameter of the fire extinguisher, for example, about 180mm to 200mm. This makes it possible to make it less than two-thirds thinner than conventional fire hydrant systems that are embedded in the wall of the tunnel structure by cutting out a box.

[0026] (Effect of fire hydrant devices placed on the road surface of the monitoring staff's walkway inside the tunnel) Furthermore, the enclosure is installed at a predetermined height above the road surface of the monitoring walkway provided along the inner wall of the tunnel, so as to be close to the tunnel wall, and each divided enclosure is installed in a direction along the tunnel wall. Combined with the slim design of the fire hydrant device, this allows for the installation of the fire hydrant device while minimizing the constraints on the width of the monitoring walkway.

[0027] (Effect of doors on terminal boxes and electrical equipment) Furthermore, by providing separate doors—a first door corresponding to the placement of electrical equipment and a second door corresponding to the placement of the terminal box—wiring and maintenance work on the terminal box only requires opening the second door. This improves the ease of installation and maintenance of the terminal box compared to conventional fire hydrant systems where the terminal box is located behind the fire extinguisher and does not have a door for it. Additionally, opening the first door as well expands the open area, further improving the ease of installation and maintenance of the terminal box.

[0028] (Effects of the placement of terminal boxes and electrical equipment) Furthermore, since the electrical equipment and terminal boxes are arranged along a predetermined direction or the height direction in the installed state, the electrical equipment and terminal boxes are arranged within the housing in a direction that does not affect the width of the fire hydrant system, and the space for the terminal boxes and the wiring cables connected to the terminal boxes do not become constraints when making the fire hydrant system thinner.

[0029] The effects of the fire extinguisher box of the present invention are the same as those of the fire hydrant system described above, so a detailed explanation will be omitted. [Brief explanation of the drawing]

[0030] [Figure 1] This is an explanatory diagram showing a first embodiment of a fire hydrant system installed on the road surface of a supervisory walkway. [Figure 2] This is an explanatory diagram showing a cross-sectional view of the fire hydrant system's casing structure, as seen from above. [Figure 3] This is an explanatory diagram showing the installation height of the fire hydrant system using its mounting frame. [Figure 4] This is an explanatory diagram showing the internal structure of a fire hydrant system, with the fire hydrant door and maintenance door open. [Figure 5] This is an explanatory diagram showing the internal structure of a fire hydrant system in a cross-sectional view from above. [Figure 6] This is an explanatory diagram showing a cross-section of the hose storage section of the first enclosure, viewed from the right side. [Figure 7] This is an explanatory diagram showing a cross-section of the electrical equipment storage area of ​​the second enclosure, viewed from the right side. [Figure 8] This is an explanatory diagram showing a cross-section of the second enclosure as seen from above. [Figure 9] This is an explanatory diagram showing the terminal box after it has been removed. [Figure 10] This is an explanatory diagram showing the cable wiring system for a fire hydrant system. [Figure 11] This is an explanatory diagram showing the details of the wiring to the terminal box to which low-voltage cables are connected. [Figure 12] This is an explanatory diagram showing a fire hydrant system with the order of the first, second, and third enclosures changed. [Figure 13] This is an explanatory diagram showing an embodiment of a fire extinguisher box. [Figure 14] This is an explanatory diagram showing a cross-sectional view from above of the internal structure and housing division structure of a fire hydrant device according to the second embodiment. [Figure 15] This is an explanatory diagram showing a cross-sectional view from above of the internal structure and housing division structure of a fire hydrant device according to the third embodiment. [Figure 16] This is an explanatory diagram showing a modified example of the first embodiment of a fire hydrant system in which electrical equipment and a terminal box are arranged vertically. [Figure 17] Figure 16 is an explanatory diagram showing a cross-section of the electrical equipment housing section of the fire hydrant system, viewed from the right side. [Figure 18] Figure 16 is an explanatory diagram showing a cross-section of the second housing of the fire hydrant system, taken out and viewed from above. [Figure 19] This is an explanatory diagram showing a conventional fire hydrant system. [Modes for carrying out the invention]

[0031] Embodiments of the fire hydrant system and fire extinguisher box according to the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited to the following embodiments.

[0032] [Basic Concepts of the Embodiment] First, the basic concepts of the embodiment will be explained. The embodiment generally relates to a fire hydrant system in which fire hydrant equipment, electrical equipment, a terminal box, and a fire extinguisher are arranged inside a housing, and to a fire extinguisher box in which electrical equipment, a terminal box, and a fire extinguisher are arranged inside a housing.

[0033] Here, "fire hydrant system" refers to a type of emergency equipment installed in areas such as tunnels on expressways and motorways that are subject to fire suppression. It consists of a housing installed in the fire-stricken area containing fire hydrant equipment such as fire hoses, electrical equipment such as red indicator lights and transmitters on an electrically operated door, a terminal box, and fire extinguishers. The concept includes fire hydrant facilities in which a fire hydrant system is installed.

[0034] Furthermore, a "fire extinguisher box" is a type of emergency equipment installed in areas that need to be extinguished, such as tunnels on expressways and motorways. It consists of an enclosure installed in the area to be extinguished, with an electrical door containing electrical equipment such as a red indicator light and transmitter, a terminal box, and a fire extinguisher.

[0035] Furthermore, the "arrangement" of fire hydrant equipment, electrical equipment, terminal boxes, and fire extinguishers in relation to a fire hydrant system or fire extinguisher box is a concept that includes "storage."

[0036] Here, the housing of the fire hydrant device of the present invention is divided into three parts (first invention) or two parts (second and third inventions).

[0037] The housing of the fire hydrant system of the first invention consists of a first housing in which the fire hydrant equipment is arranged, a second housing in which the electrical equipment and terminal box are arranged, and a third housing in which the fire extinguisher is arranged. The first housing, the second housing, and the third housing are arranged in a predetermined order along a predetermined direction, and adjacent housings are installed in a connected state.

[0038] Here, "fire hydrant equipment" refers to specified equipment including fire hoses and valves such as fire hydrant valves, "electrical equipment" refers to specified equipment including red indicator lights, transmitters, response lamps, and telephone jacks, and "terminal box" refers to a storage box equipped with terminal blocks for connecting wiring cables etc. that are drawn into the enclosure from the outside of the fire hydrant system to the electrical equipment.

[0039] Furthermore, "a predetermined one direction" refers to a direction approximately perpendicular to the direction that determines the width of the fire hydrant system, and is a direction in which the width of the fire hydrant system is not affected when each housing is arranged in the predetermined one direction. Also, "a predetermined order" means that the order in which each housing is arranged is arbitrary.

[0040] Furthermore, the housing of the fire hydrant device of the second invention is composed of a first housing in which fire hydrant equipment, electrical equipment and terminal boxes are arranged, and a second housing in which fire extinguishers are arranged. The first housing and the second housing are arranged in a predetermined order along a predetermined direction and installed in a connected state. The interior of the first housing is divided into a fire hydrant storage section in which fire hydrant equipment is arranged and an electrical equipment / terminal box storage section in which electrical equipment and terminal boxes are arranged. The fire hydrant storage section and the electrical equipment / terminal box storage section are arranged inside the first housing in a predetermined order along a predetermined direction.

[0041] Furthermore, the housing of the fire hydrant device of the third invention is composed of a first housing in which the fire hydrant equipment is arranged and a second housing in which the electrical equipment, terminal box and fire extinguisher are arranged. The first housing and the second housing are arranged in a predetermined order along a predetermined direction and installed in a connected state. The interior of the second housing is divided into an electrical equipment / terminal box storage section in which the electrical equipment and terminal box are arranged and a fire extinguisher storage section in which the fire extinguisher is arranged. The electrical equipment / terminal box storage section and the fire extinguisher storage section are arranged inside the second housing in a predetermined order along a predetermined direction.

[0042] Here, "electrical equipment / terminal box storage area" refers to the space inside the enclosure that includes the area where the electrical equipment and terminal boxes are located, and "fire extinguisher storage area" refers to the space inside the enclosure that includes the area where the fire extinguishers are located. Furthermore, "dividing the storage area" includes both physically dividing the space with a partition plate and conceptually dividing the space without physical partitioning.

[0043] Furthermore, the width of the housing may be a predetermined width corresponding to the outer diameter of the fire extinguisher. "A predetermined width corresponding to the outer diameter of the fire extinguisher" refers to a width that takes into consideration, for example, so that the fire extinguisher does not come into contact with the housing, since the outer diameter of the fire extinguisher is about 150 to 160 mm. Specifically, this width is about 180 mm to 200 mm, and refers to the length in a direction that is not the height direction and is approximately perpendicular to one predetermined direction.

[0044] Furthermore, the housing may be installed at a predetermined height on the road surface of a monitoring walkway provided along the inner wall of a tunnel containing a road, so as to be close to the tunnel wall. In this case, the predetermined one direction is the direction along the tunnel wall. The "predetermined height" is a height at which the fire hydrant device can be installed in close proximity to the tunnel wall. For example, by installing a stand on the road surface of the monitoring walkway and installing the housing on the stand, the installation height of the fire hydrant device can be adjusted to the predetermined height.

[0045] Furthermore, the enclosure may be provided with a first door corresponding to the placement of electrical equipment and a second door corresponding to the placement of a terminal box. Here, "first door" and "second door" are merely names used to distinguish whether a door is provided corresponding to the placement of electrical equipment or the placement of a terminal box, and do not indicate any difference in the configuration of the doors. In other words, it is not prohibited for the "first door" and "second door" to be doors with the same configuration or doors with different configurations.

[0046] Furthermore, the electrical equipment and terminal box may be arranged within the enclosure along a predetermined direction or along the height direction in the installed state.

[0047] Furthermore, the fourth invention, the fire extinguisher box housing, is composed of a first housing in which electrical equipment and a terminal box are arranged, and a second housing in which a fire extinguisher is arranged. The first housing and the second housing are arranged in a predetermined order along a predetermined direction and installed in a connected state.

[0048] The following describes a specific embodiment. In the specific embodiment shown below, the fire hydrant device is installed on a platform set up on the monitoring walkway inside the tunnel, the terminal box is a terminal box for high voltage and a terminal box for low voltage, and the predetermined direction is the longitudinal direction of the tunnel.

[0049] [Specific details of the embodiment] We will now provide a more detailed explanation of fire hydrant systems and fire extinguisher boxes. The explanation will be divided as follows: a. First embodiment of a fire hydrant system a1. Overview of the fire hydrant system of the first embodiment a2. Installation of fire hydrant systems a3. Installation height and slimming of fire hydrant systems a4. Configuration that accommodates the miniaturization of fire hydrant systems. b. Structure of a fire hydrant system b1. Structure of the first enclosure b2. Structure of the second enclosure b3. Structure of the third enclosure b4. Cable wiring system for fire hydrant equipment b5. Advantages of the fire hydrant system of the first embodiment c. First embodiment of a fire hydrant system with a changed arrangement of housings d. Embodiment of a fire extinguisher box e. Second embodiment of a fire hydrant system f. Third embodiment of a fire hydrant system g. Embodiment of a fire hydrant system in which electrical equipment and terminal boxes are arranged vertically. h. Modified Examples of the Invention

[0050] [a. First embodiment of a fire hydrant system] A first embodiment of a fire hydrant system in which the enclosure is divided into three parts along the longitudinal direction of the tunnel will be described in more detail. Figure 1 is an explanatory diagram showing the installation state of the fire hydrant system according to the first embodiment inside the tunnel. Figure 1(A) shows the installation state of the fire hydrant system as seen in the tunnel cross section, and Figure 1(B) shows the installation state of the fire hydrant system as seen in the direction of the tunnel wall.

[0051] (a1. Overview of the fire hydrant system of the first embodiment) The fire hydrant device of the first embodiment will now be described in outline. As shown in Figure 1(B), the fire hydrant device 10 of the first embodiment is arranged by dividing it into a first housing 11a, a second housing 11b, and a third housing 11c from right to left, and installing it by connecting adjacent housings.

[0052] Specifically, as shown in the cross-sectional view of the housing division structure in Figure 2, the housing of the fire hydrant device 10 is divided into three parts: a first housing 11a, a second housing 11b, and a third housing 11c. The right side of the second housing 11b is connected and fixed to the left side of the first housing 11a with bolts 76 and nuts 78, and the right side of the third housing 11c is connected and fixed to the left side of the second housing 11b with bolts 76 and nuts 78.

[0053] Furthermore, as shown in Figure 1(B), a decorative frame 13a is attached to the front of the first housing 11a. The door opening of the decorative frame 13a is divided into upper and lower sections. A forward-tilting fire hydrant door 12 that opens downward by hinge 12a is located on the lower side of the door opening, and a maintenance door 14 that opens upward by hinge 14a is located on the upper side of the door opening. The fire hydrant storage section, which is the interior of the first housing 11a, houses predetermined fire hydrant equipment, including fire hoses and valves such as fire hydrant valves.

[0054] Furthermore, a decorative frame 13b is attached to the front of the second enclosure 11b. The door opening of the decorative frame 13b is divided into left and right sections, with a first door 18 on the right side that opens to the right via a hinge 18a, and a second door 20 on the left side that opens to the left via a hinge 20a. The first door 18 functions as an electrical door and is equipped with electrical equipment such as a red indicator light 22, a transmitter 24, and a response lamp 25, and a telephone jack is provided on the inside of the first door 18.

[0055] The red indicator light 22 is always illuminated, allowing the location of the fire hydrant device 10 to be identified from a distance. When a fire occurs and the transmitter 24 is pressed, turning on the push-button switch, a transmission signal is sent, and a fire alarm is output from the fire prevention receiving panel in the electrical room upon receiving this signal. The fire hydrant device 10 receives a response signal from the fire prevention receiving panel, causing the red indicator light 22 to flash and the response lamp 25 to light up.

[0056] On the rear side of the second enclosure 11b, opposite the second door 20, a high-voltage terminal box 26a and a low-voltage terminal box 26b are arranged vertically. The high-voltage terminal box 26a uses a built-in terminal block to connect the high-voltage cable drawn in from outside the fire hydrant system 10 to the red indicator light 22. The low-voltage terminal box 26b uses a built-in terminal block to connect the low-voltage cable drawn in from outside the fire hydrant system 10 to the transmitter 24, response lamp 25, telephone jack, etc.

[0057] Furthermore, a decorative frame 13c is attached to the front of the third housing 11c. The door opening of the decorative frame 13c is provided with a fire extinguisher door 16 that opens horizontally to the left by a hinge 16a, allowing for the storage of, for example, two fire extinguishers in the fire extinguisher storage area inside the third housing 11c. In addition, a viewing window 17 is provided on the lower side of the fire extinguisher door 16, allowing the presence or absence of fire extinguishers to be checked from the outside.

[0058] (a2. Installation of fire hydrant systems) A more detailed explanation will be given regarding the installation of fire hydrant equipment inside the tunnel. Below the cylindrical (circular cross-section) tunnel structure constructed by the shield tunneling method, a road 36 is constructed in the longitudinal direction (left-right direction) of the tunnel, and a monitoring walkway 35 is constructed at a predetermined height relative to the road 36, below the tunnel wall 26 along the rear side of the road 36.

[0059] In tunnels constructed using the shield tunneling method, it is difficult to cut out a box for installing the fire hydrant system 10. Therefore, a support frame 30 is installed on the road surface of the monitoring walkway 35, close to the tunnel wall 26. The first housing 11a, second housing 11b, and third housing 11c, to which the fire hydrant system 10 is connected, are then mounted and fixed on the support frame 30. Here, the height H1 of the support frame 30 is set so that the height from the road surface of the monitoring walkway 35 to the transmitter 24 located on the fire hydrant system 10 falls within the legally stipulated range of 800 mm to 1500 mm.

[0060] Furthermore, the frame 30 of this embodiment is composed of a first frame 32 and a second frame 34. As shown in Figure 1(A), the first frame 32 has a side shape that is an inverted trapezoid with the top side longer than the bottom side, and the rear side is an inclined surface that slopes diagonally downward along the curved shape of the tunnel wall 26. The second frame 34 is fixed on top of the first frame 32, and the first housing 11a, second housing 11b, and third housing 11c, to which the fire hydrant device 10 is connected, are attached and fixed to it.

[0061] (a3. Installation height and thinning of fire hydrant systems) The installation height and thinning of the fire hydrant device will be explained in more detail. In order to reduce the constraint on the width of the passage due to the protrusion (overhang) of the fire hydrant device 10, which is installed on the road surface of the guardian passage 35 by the support frame 30, from the tunnel wall 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.

[0062] First, since the installation height of the fire hydrant device 10 is determined by the support frame 30, we will explain in more detail how to optimize the height H1 of the support frame 30. Figure 3 schematically shows the installation state of the fire hydrant device in the tunnel cross-section. The tunnel wall 26 on which the fire hydrant device 10 is installed has a circular cross-section. In Figure 3(A), the height H1 of the support frame 30 is set such that the horizontal centerline SL2 of the housing of the fire hydrant device 10, which is installed on the monitoring staff passage 35, is as close as possible to the horizontal tunnel centerline SL1 from the tunnel center (center of the circular cross-section) P.

[0063] In this case, the closer the housing centerline SL2 is to the tunnel centerline SL1, the less the fire hydrant device 10 protrudes from the tunnel wall 26.

[0064] Figure 3(B) shows the case where the height H1 of the support frame 30 is set so that the centerline SL2 of the housing coincides with the centerline SL1 of the tunnel. In this case, the degree to which the fire hydrant device 10 protrudes from the tunnel wall 26 can be minimized. However, the height H1 of the support frame 30 should be adjusted within the limits possible, taking into account the removal of fire extinguishers, etc.

[0065] Next, the thinning of the fire hydrant system 10 will be explained in more detail. Among the equipment housed in the fire hydrant system 10, the largest in the front-to-back direction is the fire extinguisher housed in the third housing 11c. Since the fire hydrant system 10 can be made thinner as long as the width (front-to-back direction) of the fire hydrant system is within the size that the fire extinguisher can be housed in the third housing 11c, the width of the fire hydrant system 10 is set to a predetermined width corresponding to the outer diameter of the fire extinguisher housed in the third housing 11c.

[0066] The outer diameter of a fire extinguisher is approximately 150-160 mm. If a gap is secured so that the stored fire extinguisher does not come into contact with the third housing 11c, the minimum width of the fire hydrant device 10 will be, for example, within a range of approximately 180-200 mm, and the width of the fire hydrant device 10 will be set to a predetermined width within that range. In contrast, the width of a conventional fire hydrant device 10, which is installed by cutting out a box in the wall of the tunnel structure, is approximately 300 mm. Therefore, the width of the fire hydrant device 10 in this embodiment can be reduced to 2 / 3 or less of the conventional width, and the fire hydrant device 10 can be made thinner.

[0067] (a4. Configuration adapted to the miniaturization of fire hydrant systems) If the fire hydrant device 10 is made thinner to a predetermined width of approximately 180 to 200 mm to correspond to the outer diameter of the fire extinguisher, it becomes difficult to place the terminal boxes 26a and 26b on the rear surface of the housing behind the fire extinguisher storage section where the fire extinguisher is housed, as in the conventional fire hydrant device 10 shown in Figure 19. Therefore, in this embodiment, the first housing 11a, the second housing 11b, and the third housing 11c, which are divided into three sections in the longitudinal direction (left and right direction) of the tunnel, are connected together, and the housing where the electrical equipment is housed (second housing 11b) and the housing where the fire extinguisher is housed (third housing 11c) are separated. Instead of placing the terminal boxes 26a and 26b in the third housing 11c where the fire extinguisher is housed, the terminal boxes 26a and 26b are placed in the second housing 11b where the electrical equipment is housed.

[0068] [b. Structure of fire hydrant systems] The internal structure of the fire hydrant system, which is divided into three sections and connected to a first housing 11a, a second housing 11b, and a third housing 11c, will be explained in more detail with reference to Figures 4 to 9.

[0069] (b1. Structure of the first enclosure) The structure of the first housing 11a will be explained in more detail. Refer to Figure 4, which shows the internal structure of the fire hydrant system with the fire hydrant door and maintenance door open on the front; Figure 5, which shows the internal structure of the fire hydrant system in a cross-sectional view from above; and Figure 6, which shows a cross-sectional view of the hose storage section of the first housing from the right side. Figure 5 is a cross-section of the area indicated by the dashed line aa in Figure 4, and Figure 6 is a cross-section of the area indicated by the dashed line bb in Figure 4.

[0070] The interior of the first housing 11a, which houses the fire hydrant, is divided into a valve storage section 50a and a hose storage section 50b. In the valve storage section 50a, a water supply pipe 48 is drawn in from below through a frame 30 and connected to a water tap 52. The water supply pipe 48 also branches downward, and a fire hydrant valve 54 and an automatic pressure regulating valve 56 are provided at the branch end, followed by a fire hose 60. The fire hydrant valve 54 is opened and closed by a fire hydrant valve opening / closing lever 58. When the fire hydrant valve opening / closing lever 58 is opened or closed, the fire hydrant valve 54 is remotely opened or closed by a known wire linkage mechanism. Also, when the fire hydrant valve opening / closing lever 58 is opened or closed, a pump start interlocking switch provided in the control box is turned on or off. In addition, a pump start switch 64 for use by the fire brigade is provided to the upper right of the water tap 52.

[0071] A hose storage frame 62 is provided in the hose storage section 50b, and the fire extinguishing hose 60, which is pulled in from below, is stored in a clockwise or counterclockwise inward-curved state. A nozzle 68 is attached to the end of the fire extinguishing hose 60, which is pulled out through the hose guide 66, and is detachably held in the nozzle holder 70. In addition, a cable rack 49 is provided at the top of the hose storage section 50b to route wiring cables pulled in from outside the first housing 11a to the second housing 11b, and a cable passage opening is provided in the bulkhead of the first housing 11a opposite the left end of the cable rack 49.

[0072] (b2. Structure of the second enclosure) The structure of the second housing 11b will be explained in more detail. Refer to Figure 4, which shows the internal structure of the fire hydrant system with the fire hydrant door and maintenance door open on the front; Figure 5, which shows the internal structure of the fire hydrant system in a cross-sectional view from above; Figure 7, which shows a cross-sectional view of the electrical equipment storage section of the second housing from the right side; and Figure 8, which shows a cross-sectional view of the second housing from above. Figure 7 is a cross-section of the area indicated by the dashed line cc in Figure 4, and Figure 8 is a detailed view of the part of the second housing shown in Figure 5.

[0073] The interior of the second housing 11b is divided into an electrical equipment storage section 50c and a terminal box storage section 50d. A first door 18, which opens to the right by a hinge 18a, is positioned in the opening on the front of the second housing 11b corresponding to the electrical equipment storage section 50c. As shown in Figure 7, a red indicator light 22, a transmitter 24, a telephone jack 28, and an answer lamp 25 are arranged on the first door 18 from top to bottom, with the telephone jack 28 located on the inside of the first door 18.

[0074] Here, among the electrical equipment, the red indicator light 22 has the largest front-to-back dimensions inside the second housing 11b, and its size is approximately 120 mm. Therefore, even if the fire hydrant device 10 is made thinner to a predetermined width of approximately 180 to 200 mm, it is possible to arrange the electrical equipment while still securing space for the wiring cables pulled in from the first housing 11a side.

[0075] Furthermore, a second door 20 that opens to the left by a hinge 20a is positioned in the opening on the front of the second housing 11b corresponding to the terminal box storage section 50d, and as shown in Figure 7, terminal boxes 26a and 26b are arranged vertically on the rear surface of the housing inside the second housing 11b, opposite the second door 20.

[0076] As shown in Figure 8, for example, the first door 18 is bent at its left end inward towards the housing 11b and is positioned so that, in the closed position, it abuts against the housing-side surface of the right end of the second door 20 (the door mating surface). A door holding structure (not shown) is also provided on the door mating surface to hold the first door 18 and the second door 20 in the closed position. The door holding structure is arbitrary, but for example, a fixing screw may be provided on the door mating surface so that it can be operated from the outside of the second housing 11b, or a magnetic member may be provided on the door mating surface to fix the second door 20 by magnetic attraction.

[0077] Furthermore, a cable entry port 80 is formed in the partition wall connecting the second enclosure 11b to the first enclosure 11a, which is to the right of the second enclosure 11b, for pulling in wiring cables inserted into the cable rack 49 of the first enclosure 11a. Additionally, an opening 82 is formed in the partition wall connecting the second enclosure 11b to the third enclosure 11b, which is to the left of the second enclosure 11b, for use in opening the fire extinguisher door 16 of the third enclosure 11c and reaching into the second enclosure 11b from the third enclosure 11c side to release the door locks of the first door 18 and the second door 20 from the inside of the second enclosure 11b, although this opening 82 is not required.

[0078] Here, we will explain in more detail the terminal boxes 26a and 26b located in the second enclosure 11b. Figure 9 shows the terminal box 26a located in the second enclosure 11b, with Figure 9(A) being a top view of the terminal box 26a, Figure 9(B) being a front view of the terminal box 26a, and Figure 9(C) being a side view of the terminal box 26a. The same applies to the terminal box 26b.

[0079] The terminal box 26a consists of a box body 260 and a lid member 262, and when placed in the second housing 11b, its dimensions (height (top and bottom) x width (left and right) x depth (front and back)) are approximately 220 mm x 140 mm x 80 mm. The lid member 262 is positioned to open and close freely at the opening of the box body 260 by a hinge 264, and is fixed in the closed position by a knob 268. When the lock is released by operating the knob 268, the lid member 262 is opened as shown in the lid member 2620, allowing wiring cables to be connected to the terminal block 280a.

[0080] Furthermore, the lid member 262 is made of transparent resin so that the terminal block 280a inside can be seen. Multiple waterproof connectors 266 are arranged on the top and sides of the box body 260, for example, two on the top and two on each side, to ensure the waterproofness of the wiring cables inserted into the waterproof connectors 266. In addition, a terminal block 280a with multiple terminals arranged on it is also placed on the box body 260.

[0081] Furthermore, even if the fire hydrant device 10 is made thinner to a predetermined width of approximately 180-200 mm, the depth (front to back) of the terminal boxes 26a and 26b is approximately 80 mm, so sufficient space is secured within the second housing 11b to accommodate the terminal boxes 26a and 26b. In addition, since 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, connections between the terminal boxes 26a and 26b and the electrical equipment can be made with short wiring lengths.

[0082] Therefore, during the assembly of the second enclosure 11b at the factory, as shown in Figure 8, the front of the second enclosure 11b can be opened by opening the first door 18 and the second door 20 to the positions of the first door 180 and the second door 200, which are indicated by dashed lines, making it easy to connect the terminal blocks 26a and 26b with the electrical equipment located on the first door 18 using signal lines.

[0083] Furthermore, even when the fire hydrant device 10 is installed inside the tunnel, the door fixing can be released, and as shown in Figure 8, the front of the second housing 11b can be opened by opening the first door 18 and the second door 20 to the positions indicated by the dashed lines for the first door 180 and the second door 200, allowing the wiring cables pulled in from the first housing 11a to be connected to the terminal boxes 26a and 26b. This makes it possible to easily perform the wiring work without being obstructed by the fire extinguishers that were conventionally housed in the same housing.

[0084] (b3. Structure of the third enclosure) The structure of the third housing 11c will be explained in more detail. Refer to Figure 4, which shows the internal structure of the fire hydrant device with the fire hydrant door and maintenance door open, and Figure 5, which shows the internal structure of the fire hydrant device in a cross-sectional view from above. The inside of the third housing 11c is a fire extinguisher storage section 50e, which has space to store two fire extinguishers 72 with an outer diameter of approximately 150 to 160 mm. In addition, 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 corresponding to the outer diameter of the fire extinguisher 72. This ensures a gap of approximately 15 to 25 mm in front of and behind the stored fire extinguisher 72, allowing the fire extinguisher 72 to be stored inside the third housing 11c without contact with the third housing 11c.

[0085] (b4. Cable wiring system for fire hydrant systems) The cable wiring system for the electrical equipment located in the second housing 11b of the fire hydrant system 10 will be explained in more detail. As shown in Figure 10, the first door 18 of the second housing 11b is equipped with electrical equipment including a red indicator light 22, a transmitter 24, a response lamp 25, and a telephone jack 28. The red indicator light 22 is connected to the corresponding terminal on the terminal block 280a of the terminal box 26a, and the transmitter 24, response lamp 25, and telephone jack 28 are connected to the corresponding terminals on the terminal block 280b of the terminal box 26b. Note that in Figure 10, the positional relationship between the electrical equipment storage section 50c and the terminal box storage section 50d in the second housing 11b differs from the actual position, but Figure 10 is intended to show the cable wiring system of the electrical equipment and does not represent the actual position or arrangement.

[0086] Furthermore, a pump start switch 64 and a pump start interlock switch 65 are provided in the valve storage section 50a of the first housing 11a of the fire hydrant system 10, and are connected by cable wiring through the cable rack 49 to the terminal block 280b of the terminal box 26b provided in the second housing 11b.

[0087] A high-voltage cable 53, which supplies AC100V power from an external source, is routed into the valve storage section 50a of the first enclosure 11a, and is pulled out to the second enclosure 11b side through the cable rack 49. It is connected to the terminals of the terminal block 280a of the terminal box 26a, thereby connecting to the red indicator light 22.

[0088] Furthermore, a low-voltage cable 55 (a single multi-core cable, but represented as a telephone cable 55a, response lamp cable 55b, transmitter cable 55c, and switch cable 55d in the cable wiring system shown in Figure 10), which is a multi-core cable that supplies DC48V power from the outside, is pulled into the valve storage section 50a of the first enclosure 11a, and is pulled out to the second enclosure 11b side through the cable rack 49. It is connected to the terminals of the terminal block 280b of the terminal box 26b, thereby connecting to the telephone jack 28 of the first door 18, the response lamp 25, the transmitter 24, and the pump start switch 64 and pump start interlock switch 65 provided in the valve storage section 50a.

[0089] As shown in Figure 10, the pump start switch 64 and the pump start interlock switch 65 in the valve housing section 50a are connected to the terminals of the terminal block 280b of the terminal box 26b as a parallel circuit, with the wiring of the pump start interlock switch 65 connected to the terminals of the pump start switch 64. Furthermore, the terminals of the terminal block 280b of the terminal box 26b to which the wiring of the pump start switch 64 and the pump start interlock switch 65 are connected are connected to the terminals to which the wiring of the transmitter 24 is connected via jumper wiring, so that the wiring of the pump start switch 64 and the pump start interlock switch 65 are connected to the wiring of the transmitter 24.

[0090] (b5. Advantages of the fire hydrant system of the first embodiment) In this first embodiment of the fire hydrant system 10, the width of the fire hydrant system 10 is a predetermined width in the range of 180 to 200 mm corresponding to the outer diameter of the fire extinguisher 72. The housing of the fire hydrant system 10 is divided into a first housing 11a where fire hydrant equipment such as the fire hose 60 and valves are arranged, a second housing 11b where electrical equipment such as the red indicator light 22 and transmitter 24 and terminal boxes 26a and 26b are arranged, and a third housing 11c where the fire extinguisher 72 is arranged, and adjacent housings are connected and installed.

[0091] Therefore, since the second housing 11b secures the installation space for the terminal boxes 26a and 26b, it is possible to reduce the width of the fire hydrant device 10 to less than 2 / 3 of the width of a conventional fire hydrant device 10 that is embedded in the wall of the tunnel structure by cutting out a box, thereby enabling the installation of the fire hydrant device 10 on the monitoring passage 35 inside the tunnel while minimizing the constraints on the width of the monitoring passage 35.

[0092] [c. First embodiment of a fire hydrant system with a changed arrangement of casings] An embodiment of a fire hydrant system in which the arrangement of the three casings divided along the longitudinal direction of the tunnel is changed will be described in more detail. In the first embodiment, the fire hydrant system 10 is divided into a first casing 11a, a second casing 11b, and a third casing 11c arranged from right to left, and adjacent casings are connected and installed. However, the arrangement of the first casing 11a, the second casing 11b, and the third casing 11c can be changed as needed.

[0093] The order in which the first housing 11a, the second housing 11b, and the third housing 11c are arranged is arbitrary, but Figure 12 shows an example of a fire hydrant system 10 with a different arrangement of housings. In the fire hydrant system 10 in Figure 12, the order of the second housing 11b and the third housing 11c is swapped, with the third housing 11c connected to the left of the first housing 11a, and the second housing 11b connected to the left of the third housing 11c.

[0094] In this case, the structures of the first housing 11a, the second housing 11b, and the third housing 11c are basically the same as those shown in Figures 1 to 8, but differ in that the left side of the second housing 11b, which is located at the far left, is a closed surface, and the connecting surface between the third housing 11c and the second housing 11b is, for example, an open surface to allow wiring cables to pass through.

[0095] Alternatively, an electrical access door corresponding to the first door 18 may be provided as a single door on the front of the second housing 11b located at the far left, and a door corresponding to the second door 20 may be provided on the left side of the second housing 11b.

[0096] [d. Embodiment of a fire extinguisher box] The first embodiment of the fire extinguisher box will be described in more detail. In this embodiment of the fire extinguisher box, the second housing 11b of the first embodiment of the fire hydrant device 10 is replaced with the first housing 110a, and the third housing 11c is replaced with the second housing 110b. As shown in the front view of the fire extinguisher box in Figure 13(A) and the cross-sectional view of the internal structure of the fire extinguisher box viewed from above in Figure 13(B), the first housing 110a and the second housing 110b are divided into two parts and arranged from right to left, and then connected. Note that Figure 13(B) is a cross-section of the area indicated by the dashed line dd in Figure 13(A).

[0097] The embodiment of the fire extinguisher box 100 is a configuration obtained by removing the first housing 11a from the first embodiment of the fire hydrant device 10, and the first housing 110a is basically the same as the second housing 11b, and the second housing 110b is basically the same as the third housing 11c.

[0098] Therefore, the fire extinguisher box 100 can be made thinner to a predetermined width of 180 to 200 mm, corresponding to the outer diameter of the fire extinguisher 72, while securing space for the terminal boxes 26a and 26b by the first housing 110a. This makes it possible to install the fire extinguisher box 100 on the guardian passage 35 inside the tunnel while minimizing the constraints on the width of the guardian passage 35.

[0099] Furthermore, in this embodiment as well, the order in which the first housing 110a and the second housing 110b are arranged can be arbitrarily changed, and the second housing 110b may be connected to the right side of the first housing 110a.

[0100] [e. Second embodiment of a fire hydrant system] A second embodiment of the fire hydrant system will be described in more detail. In the second embodiment of the fire hydrant system 10, the first housing 11a and the second housing 11b of the first embodiment of the fire hydrant system 10 are combined into a single housing called the first housing 112a, and the third housing 11c is made the second housing 112b.

[0101] In the second embodiment of the fire hydrant device 10, as shown in the cross-sectional view of the internal structure of the fire hydrant device from above in Figure 14(A), the device is divided into two parts, a first housing 112a and a second housing 112b, arranged from right to left and connected together. Specifically, as shown in the cross-sectional view of the housing division structure of the fire hydrant device from above in Figure 14(B), the housing of the fire hydrant device 10 is divided into two parts, a first housing 112a and a second housing 112b, and the right side of the second housing 112b is connected and fixed to the left side of the first housing 112a with bolts 76 and nuts 78. Figure 14(A) is a cross-section of the fire hydrant device 10 in the second embodiment at the location indicated by the dashed line aa in Figure 4, which shows the front of the fire hydrant device 10 in the first embodiment.

[0102] The interior of the first housing 112a is divided from right to left into a valve storage section 50a, a hose storage section 50b, an electrical equipment storage section 50c, and a terminal box storage section 50d. A partition plate 84 is placed between the hose storage section 50b and the electrical equipment storage section 50c. The partition plate 84 also has a wiring port formed therein for wiring cables that are drawn in from the outside into the valve storage section 50a and then through the valve storage section 50a and the hose storage section 50b to be drawn into the electrical equipment storage section 50c.

[0103] The structure of the valve storage section 50a, hose storage section 50b, electrical equipment storage section 50c, and terminal box storage section 50d of the first housing 112a, the equipment arranged therein, and the doors provided corresponding to each storage section are basically the same as those of the first embodiment of the fire hydrant device 10.

[0104] Furthermore, the interior of the second housing 112b becomes a fire extinguisher storage section 50e, and the structure of the fire extinguisher storage section 50e, the equipment to be placed inside, and the doors provided are basically the same as those of the first embodiment of the fire hydrant device 10.

[0105] Furthermore, the hose storage section 50b is provided with a cable rack for inserting wiring cables, and each of the connecting surfaces between the first housing 112a and the second housing 112b may have an opening that can be used to open the fire extinguisher door 16 of the second housing 112b and reach into the terminal box storage section 50d of the first housing 112a from the second housing 112b side to release the door fixings of the first door 18 and the second door 20 from the inside of the first housing 112a, but this is omitted from the illustration.

[0106] Furthermore, the second embodiment of the fire hydrant device 10, similar to the first embodiment of the fire hydrant device 10, secures space for the terminal boxes 26a and 26b by the terminal box storage section 50d, and allows the width of the fire hydrant device 10 to be reduced to a predetermined width in the range of 180 to 200 mm corresponding to the outer diameter of the fire extinguisher 72, thereby enabling the installation of the fire hydrant device 10 on the guardian passage 35 inside the tunnel while minimizing the constraints on the width of the guardian passage 35.

[0107] Furthermore, in this embodiment as well, the order in which the first housing 112a and the second housing 112b are arranged can be arbitrarily changed, and the second housing 112b may be connected to the right side of the first housing 112a.

[0108] [f. Third embodiment of a fire hydrant system] A third embodiment of the fire hydrant system will be described in more detail. In the third embodiment of the fire hydrant system 10, the first housing 11a of the first embodiment of the fire hydrant system 10 is made into a first housing 114a, and the second housing 11b and the third housing 11c are made into a single housing 2 housing 114b.

[0109] In the third embodiment of the fire hydrant device 10, as shown in the cross-sectional view of the internal structure of the fire hydrant device from above in Figure 15(A), the device is divided into two parts, a first housing 114a and a second housing 114b, arranged from right to left and connected together. Specifically, as shown in the cross-sectional view of the housing division structure of the fire hydrant device from above in Figure 15(B), the housing of the fire hydrant device 10 is divided into two parts, a first housing 114a and a second housing 114b, and the right side of the second housing 114b is connected and fixed to the left side of the first housing 114a with bolts 76 and nuts 78. Note that Figure 15(A) is a cross-section of the fire hydrant device 10 in the third embodiment at the location indicated by the dashed line aa in Figure 4, which shows the front of the fire hydrant device 10 in the first embodiment.

[0110] The interior of the first housing 114a is divided from the right side into a valve storage section 50a and a hose storage section 50b. The structure of the valve storage section 50a and the hose storage section 50b, the equipment arranged therein, and the doors provided corresponding to the storage sections are basically the same as those of the first embodiment of the fire hydrant device 10.

[0111] The interior of the second enclosure 114b is divided from right to left into an electrical equipment storage section 50c, a terminal box storage section 50d, and a fire extinguisher storage section 50e, with a partition plate 84 positioned between the terminal box storage section 50d and the fire extinguisher storage section 50e.

[0112] The structure of the electrical equipment storage section 50c, the terminal box storage section 50d, and the fire extinguisher storage section 50e of the second housing 114b, the equipment to be arranged therein, and the doors provided corresponding to each storage section are basically the same as those of the first embodiment of the fire hydrant device 10.

[0113] Furthermore, each connecting surface between the first housing 114a and the second housing 114b has a wiring port for bringing wiring cables, which have been routed through the first housing 114a from the outside, into the second housing 114b. The hose storage section 50b is provided with a cable rack for inserting wiring cables. The partition plate 84 separating the terminal box storage section 50d and the fire extinguisher storage section 50e of the second housing 114b may also have an opening for opening the fire extinguisher door 16 and reaching into the electrical equipment storage section 50d from the fire extinguisher storage section 50e to release the door locks of the first door 18 and the second door 20 from the inside of the second housing 114b, but this is omitted from the illustration.

[0114] Furthermore, the third embodiment of the fire hydrant device 10, similar to the first embodiment of the fire hydrant device 10, secures space for the terminal boxes 26a and 26b by the terminal box storage section 50d, and allows the width of the fire hydrant device 10 to be reduced to a predetermined width in the range of 180 to 200 mm corresponding to the outer diameter of the fire extinguisher 72, thereby enabling the installation of the fire hydrant device 10 on the guardian passage 35 inside the tunnel while minimizing the constraints on the width of the guardian passage 35.

[0115] Furthermore, in this embodiment as well, the order in which the first housing 114a and the second housing 114b are arranged can be arbitrarily changed, and the second housing 114b may be connected to the right side of the first housing 114a.

[0116] [g. Embodiment of a fire hydrant system in which electrical equipment and terminal boxes are arranged vertically] An embodiment of a fire hydrant system in which electrical equipment and terminal boxes are arranged vertically will be described in more detail using the first embodiment of a fire hydrant system with a three-part housing structure. Note that the configuration in which electrical equipment and terminal boxes are arranged vertically can also be applied to the second and third embodiments of a fire hydrant system with a two-part housing structure, as well as to the fire extinguisher box.

[0117] As shown in the front view of the fire hydrant system in Figure 16, the fire hydrant system 10 is divided into a first housing 11a, a second housing 11b, and a third housing 11c arranged from right to left, with adjacent housings connected and installed together. The first housing 11a and the third housing 11c are the same as in the first embodiment of the fire hydrant system.

[0118] In contrast, the second enclosure 11b is the same in that it houses electrical equipment and terminal boxes, but it differs in that the location of these components and the first door 18 and second door 20 located at the front opening of the second enclosure 11b are arranged vertically rather than horizontally.

[0119] Here, the second housing 11b of this embodiment will be described in more detail with reference to Figures 16 to 18. Figure 17 shows a cross-section of the second housing of the fire hydrant device shown in Figure 16, viewed from the right side; Figure 18(A) shows a cross-section of the portion where the first door is located, viewed from above; and Figure 18(B) shows a cross-section of the portion where the second door is located, viewed from above. Note that Figure 17 is a cross-section of the portion indicated by the dashed line ee in Figure 16, Figure 18(A) is a cross-section of the portion indicated by the dashed line ff in Figure 17, and Figure 18(B) is a cross-section of the portion indicated by the dashed line gg in Figure 17.

[0120] The first door 18, located above the front opening of the second enclosure 11b, has a red indicator light 22 and a telephone jack 28 (on the inside of the door) positioned horizontally, and below them, a transmitter 24 and an answer lamp 25 are positioned horizontally. The first door 18 is pivotally supported at two points, top and bottom, on the right end by hinges 18a, so that it opens horizontally to the right, as shown by the dashed line of the first door 180.

[0121] Furthermore, the second door 20, located below the front opening of the second enclosure 11b, is pivotally supported at two points on the right end, top and bottom, by hinges 20a, so that it opens sideways to the right, as shown by the dashed line of the second door 200.

[0122] Terminal boxes 26a and 26b are located on the rear surface of the second enclosure 11b, opposite the second door 20. As shown in Figure 16, for example, terminal boxes 26a and 26b are positioned offset from each other in the vertical and horizontal directions, thereby ensuring sufficient wiring space around each terminal box 26a and 26b.

[0123] Furthermore, the first door 18 and the second door 20 are provided with a door holding structure (not shown) for holding them in the closed position. The door holding structure is optional, but for example, a fixing screw may be provided on the contact surface with the front opening edge of the second housing 11b so as to be operable from the outside of the second housing 11b, or a magnetic member may be provided on the door side to fix it to the front opening edge of the second housing 11b by magnetic attraction.

[0124] [h. Variations of the present invention] The fire hydrant system and fire extinguisher box of the present invention include the following modifications in addition to the embodiments described above.

[0125] (When the tunnel wall has a cross-section other than circular) Although the tunnel cross-sectional shape in the above embodiment is circular, if the tunnel cross-section is not circular, for example, a three-centered circle, the present invention can be applied by setting the horizontal line at the position with the widest horizontal width of the tunnel cross-sectional shape as the tunnel centerline SL1 in the above description.

[0126] (Placement of electrical equipment and terminal boxes) In the above embodiments, the fire hydrant system and fire extinguisher box are shown with the electrical equipment and terminal box arranged in the left-right or up-down direction. However, the arrangement does not necessarily have to be in the positions shown in the embodiments. Any arrangement is acceptable as long as it ensures sufficient space for the terminal box and electrical equipment, as well as space for wiring cables, and does not hinder the thinning of the fire hydrant system.

[0127] (others) Furthermore, the present invention includes appropriate modifications that do not impair its purpose and advantages, and is not limited by the numerical values ​​shown in the above embodiments. [Explanation of symbols]

[0128] 10: Fire hydrant system 11a, 110a, 112a, 114a: First enclosure 11b, 110b, 112b, 114b: Second cabinet 11c: Third cabinet 12: Fire hydrant door 13a, 13b, 13c: Decorative frame 14: Maintenance Door 16: Fire extinguisher door 17: Peephole 18: Door 1 20: Door 2 22: Red indicator light 24: Transmitter 25: Response lamp 26a, 26b: Terminal box 28: Phone hijacking 30: Stand 32: First mounting base 34: Second mounting base 35: Guard passage 36: Road 48: Water supply piping 49: Cable rack 50a: Valve storage compartment 50b: Hose storage compartment 50c: Electrical equipment storage compartment 50d: Terminal box storage section 50e: Fire extinguisher storage compartment 52: Water tap 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-linked switch 66: Hose Guide 68: Nozzle 70: Nozzle holder 72: Fire extinguisher 76: Bolt 78: Nut 80: Cable access point 82:Aperture 84: Partition plate 100: Fire extinguisher box 260: Box body 262: Lid component 264: Hinge 266: Waterproof connector 268: Nobu 270: Bis 280a,280b:Terminal block

Claims

1. A fire hydrant system in which fire hydrant equipment, electrical equipment, terminal box, and fire extinguishers are arranged inside the enclosure, The aforementioned enclosure is The first housing in which the fire hydrant equipment is arranged, A second housing in which the aforementioned electrical equipment and the aforementioned terminal box are arranged, The third housing in which the fire extinguisher is located, Composed of, The first housing, the second housing, and the third housing are arranged in a predetermined order along a predetermined direction such that the second housing is at the end, and adjacent housings are installed in a connected state. A fire hydrant device characterized in that a first door is provided on the front of the second housing corresponding to the arrangement position of the electrical equipment, and a second door is provided on the side of the second housing on the side where there is no adjacent housing, corresponding to the arrangement position of the terminal box.

2. A fire hydrant system in which fire hydrant equipment, electrical equipment, terminal box, and fire extinguishers are arranged inside the enclosure, The aforementioned enclosure is A first housing in which the fire hydrant equipment, the electrical equipment and the terminal box are arranged, The second housing in which the fire extinguisher is placed, Composed of, The first housing and the second housing are arranged and connected along a predetermined direction, The interior of the first housing is divided into a fire hydrant storage section where the fire hydrant equipment is arranged and an electrical equipment / terminal box storage section where the electrical equipment and terminal box are arranged. The fire hydrant storage section and the electrical equipment / terminal box storage section are arranged within the first housing in a predetermined order along the predetermined one direction. The second housing is located on the side of the first housing that houses the fire hydrant, A fire hydrant device characterized in that a first door is provided on the front of the first housing corresponding to the arrangement position of the electrical equipment, and a second door is provided on the side of the first housing on the side where the second housing is not present, corresponding to the arrangement position of the terminal box.

3. A fire hydrant system in which fire hydrant equipment, electrical equipment, terminal box, and fire extinguishers are arranged inside the enclosure, The aforementioned enclosure is The first housing in which the fire hydrant equipment is arranged, A second housing in which the aforementioned electrical equipment, the terminal box, and the fire extinguisher are arranged, Composed of, The first housing and the second housing are arranged and connected along a predetermined direction, The interior of the second housing is divided into an electrical equipment / terminal box storage section where the electrical equipment and terminal box are arranged, and a fire extinguisher storage section where the fire extinguisher is arranged. The electrical equipment / terminal box storage section and the fire extinguisher storage section are arranged within the second housing in a predetermined order along the predetermined one direction. The first housing is located on the side of the second housing where the fire extinguisher is housed. A fire hydrant device characterized in that a first door is provided on the front of the second housing corresponding to the arrangement position of the electrical equipment, and a second door is provided on the side of the second housing on the side where the first housing is not present, corresponding to the arrangement position of the terminal box.

4. A fire hydrant device according to any one of claims 1 to 3, The fire hydrant system is characterized in that the electrical equipment and the terminal box are arranged along the predetermined one direction or the height direction in the installed state.

5. A fire extinguisher box in which electrical equipment, a terminal box, and a fire extinguisher are arranged inside the enclosure, The aforementioned enclosure is A first housing in which the aforementioned electrical equipment and the aforementioned terminal box are arranged, The second housing in which the fire extinguisher is placed, Composed of, The first housing and the second housing are arranged in a predetermined order along a predetermined direction and installed in a connected state. A fire extinguisher box characterized in that a first door is provided on the front of the first housing corresponding to the arrangement position of the electrical equipment, and a second door is provided on the side of the first housing on the side where the second housing is not present, corresponding to the arrangement position of the terminal box.

6. A fire extinguisher box according to claim 5, The fire extinguisher box is characterized in that the electrical equipment and the terminal box are arranged along the predetermined one direction or the height direction in the installed state.

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