Fire hydrant system

Abstract

This allows for a thinner design without being constrained by the placement of fire hydrant equipment, electrical equipment, terminal boxes, and fire extinguishers within the enclosure. [Solution] A fire hydrant device 10 is installed on a platform 30 on the road surface of the monitoring staff passage in the tunnel, which is the area to be extinguished. The housing of the fire hydrant device 10 has a predetermined width corresponding to the outer diameter of the fire extinguisher and consists of a first housing 11a in which the fire hydrant equipment is arranged, a second housing 11b connected to the side of the first housing 11a and in which electrical equipment and the fire extinguisher are arranged, and a third housing 11c connected to the top of the first housing 11a and the second housing 11b and in which terminal boxes 26a and 26b are arranged. Wiring cables are drawn from the first housing 11a to the third housing 11c and connected to the terminal boxes 26a and 26b, and the wiring cables that are drawn out after being connected to the terminal boxes 26a and 26b are drawn from the third housing to the second housing 11b and connected to the electrical equipment.

Description

Technical Field

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

Background Art

[0002] Conventionally, in tunnels such as highways and motorways that are fire protection target areas, for example, a fire hydrant device, which is a type of disaster prevention equipment storage device shown in FIG. 18, 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. Note that FIG. 18(A) shows the front of the fire hydrant device, and FIG. 18(B) shows a cross-section viewed from the top of the fire hydrant device. Further, FIG. 18(B) is a cross-section taken along the cutting line j-j in FIG. 18(A).

[0003] Here, in the description of FIG. 18, the X-Y-Z directions are directions orthogonal to each other. Specifically, when viewing the front of the fire hydrant device as shown in FIGS. 18(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 17, which are embodiments of the present invention.

[0004] As shown in FIG. 18, in a conventional fire hydrant device 10, a fire hose 60 and valves (not shown) as fire hydrant equipment are stored 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 light 22 with a supplied power of AC100V, a transmitter 24 with a supplied power of DC48V, a response lamp 25, a telephone jack 28 (inside the housing of the electrical equipment door, see FIG. 4), etc. are provided. In cold regions, a space heater with a supplied power of 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. These cables pass through one of the spaces in the fire hydrant storage section 15a and are 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] Incidentally, in tunnels constructed using methods such as shield tunneling, due to the structure of the tunnel body, it is difficult, due to cost and effort, to cut out a box in the tunnel wall and embed a fire hydrant system. Therefore, it is necessary to install the fire hydrant system in an exposed state in the monitoring staff passage.

[0007] Furthermore, in order to install the fire hydrant system in the tunnel wall without creating a box-like structure, a wall-mounted structure has been proposed in which the fire hydrant system is attached and fixed to a frame installed on the tunnel wall. In this case, the frame consists of a main support part fixed to the wall and a posture-holding member that maintains the posture of the fire hydrant system (Patent Document 2).

[0008] Furthermore, since wall-mounted fire hydrant systems have challenges such as requiring significant labor and time to install on tunnel walls, it is being considered to adopt a so-called freestanding structure in which the fire hydrant system is mounted and fixed in an exposed state on a frame installed on the road surface of the monitoring staff passage, which is easier to install. [Prior art documents] [Patent Documents]

[0009] [Patent Document 1] Japanese Patent Publication No. 2016-055073 [Patent Document 2] Japanese Patent Publication No. 2020-078429 [Overview of the Initiative] [Problems that the invention aims to solve]

[0010] However, in the case of fire hydrant systems installed in a wall-mounted or freestanding structure, the installation of the fire hydrant system restricts the width (front-to-back direction) of the monitoring staff passageway. Therefore, in order to secure the width of the monitoring staff passageway, it is necessary to make the fire hydrant system as thin as possible by reducing its width (thickness in the front-to-back direction).

[0011] When the fire hydrant device 10 is made thinner in this way, 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. Since the outer diameter of the fire extinguisher 72 is approximately 150 to 160 mm, for example, the width of the fire hydrant device 10 can be made thinner to approximately 180 mm to 200 mm, while taking into consideration that the housed fire extinguisher 72 does not come into contact with the housing 111b.

[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, 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, 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 that can be made thinner without being restricted by the fire hydrant equipment, electrical equipment, terminal box, fire extinguisher, etc., that are arranged inside the housing. [Means for solving the problem]

[0015] (Fire hydrant system) The present invention relates to a fire hydrant system in which fire hydrant equipment, electrical equipment, a terminal box, and a fire extinguisher are arranged in a housing installed in a monitoring passage along the tunnel wall of a tunnel having a road. The casing is, The first enclosure where the fire hydrant equipment is located, A second enclosure is connected to the side of the first enclosure and houses electrical equipment and fire extinguishers, A third enclosure is connected to the top of the connected first and second enclosures, and has a terminal box, and is equipped with an L-shaped door that is supported in a predetermined position and whose top and front surfaces can be opened upwards, Composed of, The wiring cable is routed from the first enclosure to the third enclosure and connected to a terminal box, and other wiring cables that are routed out from the terminal box are routed from the third enclosure to the second enclosure and connected to electrical equipment.

[0016] (Door to the third cabinet) The third enclosure features an L-shaped door that corresponds to the placement of the terminal box.

[0017] (Tracks for the third enclosure) In the third enclosure, multiple cable routing paths are formed between the entry point for the wiring cables from the first enclosure and the terminal box, with partition members dividing them in the depth direction.

[0018] (Opening between the first and second housings and the third housing) An opening for inserting wiring cables is formed between the first housing and the second housing and the third housing. An elastic closing member can be installed in the opening, which closes the opening and has a notch formed therein for inserting a wiring cable within a predetermined range in the direction of alignment of the first and second housings.

[0019] (The terminal box is located on the back of the door of the third enclosure.) The third enclosure has a terminal box located on the back of a door that is supported to open and close freely, allowing wiring cables to be connected with the door open and the terminal box exposed.

[0020] (Position of the door where the terminal box is arranged) The door with the terminal box arranged on the back surface is a front door that is horizontally openably supported at a predetermined position on the front surface of the third housing or an upper door that is upward openably supported at a predetermined position on the upper surface of the third housing.

[0021] (Fourth housing for wiring cable passage) A fourth housing for forming a passage path for the wiring cable is provided between the first housing, the second housing, and the third housing.

[0022] (Wiring path of the fourth housing) The fourth housing forms a plurality of wiring paths divided in the depth direction by a partition member between the drawing-in position of the wiring cable from the first housing and the terminal box arranged in the third housing.

[0023] (Opening between the first and second housings and the fourth housing) Openings for inserting the wiring cable are formed between the first housing, the second housing, and the fourth housing, and between the fourth housing and the third housing, and an elastic closing member having a cut portion for closing the opening and inserting the wiring cable within a predetermined range in the arrangement direction of the first and second housings can be installed in the opening.

[0024] (Width of the housing) The housing has a predetermined width corresponding to the outer diameter of the fire extinguisher.

[0025] (Mounting and fixing of the housing by a pedestal on the supervisor's passage) The housing is attached and fixed to the upper part of a pedestal installed on the road surface of the supervisor's passage, leaning towards the tunnel wall surface side.

[0026] (Mounting and fixing of the housing by a pedestal on the tunnel wall surface) The housing is attached and fixed to the front part on the road side of a pedestal installed on the tunnel wall surface above the road surface of the supervisor's passage.

[0027] (Fire hydrant device without a fire extinguisher) Another embodiment of the present invention is a fire hydrant system in which fire hydrant equipment, electrical equipment and a terminal box are arranged in a housing installed in a monitoring walkway along the tunnel wall of a tunnel having a road, The casing is, The first enclosure where the fire hydrant equipment is located, A second enclosure is connected to the side of the first enclosure, and electrical equipment is arranged therein. A third enclosure is connected to the top of the connected first and second enclosures, and has a terminal box, and is equipped with an L-shaped door that is supported in a predetermined position and whose top and front surfaces can be opened upwards, Composed of, The wiring cable is routed from the first enclosure to the third enclosure and connected to a terminal box, and other wiring cables that are routed out from the terminal box are routed from the third enclosure to the second enclosure and connected to electrical equipment.

[0028] (Fourth enclosure for routing wiring cables) A fourth housing is provided between the first housing, the second housing, and the third housing, forming a route for wiring cables. [Effects of the Invention]

[0029] (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 connected to the side of the first housing in which electrical equipment and fire extinguishers are arranged, and a third housing connected to the top of the first and second housings in which a terminal box is arranged. As a result, the third housing secures the space 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. This makes it possible to make the fire hydrant device thinner without being constrained by these space limitations.

[0030] Furthermore, since the wiring cables are routed from the first housing to the third housing and connected to the terminal box, and other wiring cables that are routed from the terminal box are routed from the third housing to the second housing and connected to the electrical equipment, it is possible to shorten the length of the wiring cables and simplify the routing of the wiring compared to conventional fire hydrant systems where the terminal box was located behind the fire extinguisher, which was housed in the same housing as the electrical equipment.

[0031] Furthermore, the area above the fire hydrant device housing, which is positioned exposed at a predetermined height in the monitoring walkway, is an unrestricted open space, allowing a third housing to be installed above the first and second housings without being constrained by the tunnel structure.

[0032] (Effect of the door on the third cabinet) Furthermore, the third enclosure is equipped with a door that can be opened and closed on its top or front, corresponding to the position of the terminal box. This makes it possible to easily and simply perform on-site work at the fire hydrant installation site by opening the door of the third enclosure, pulling the wiring cable from the first enclosure, and connecting it to the terminal box. Similarly, during the assembly and manufacturing stage of the fire hydrant system, the work of pulling the wiring cable connected to the electrical equipment from the second enclosure to the third enclosure and connecting it to the terminal box can also be easily and simply performed by opening the door of the third enclosure.

[0033] (Effect of the wiring in the third enclosure) Furthermore, in the third enclosure, multiple cable routing paths are formed between the entry point of the wiring cables from the first enclosure and the terminal box, separated in the depth direction by partition members. For example, if separate terminal boxes for high-voltage and low-voltage cables are provided in the third enclosure, two cable routing paths are formed. By passing the high-voltage cable through one routing path and the low-voltage cable through the other, the maximum physically possible separation distance can be ensured between the high-voltage cable and the low-voltage cable, thereby reducing the influence of noise from the high-voltage cable on the low-voltage cable used for signal communication, etc.

[0034] (Effect of the opening between the first and second housings and the third housing) An opening for inserting a wiring cable is formed between the first housing, the second housing, and the third housing. An elastic closing member can be installed in the opening, which closes the opening and has a notch formed in a predetermined range in the direction of alignment of the first and second housings for inserting the wiring cable. As a result, the wiring inserted through the notch in the opening is held in place by elastic force, making it easy to insert and remove the wiring cable from the third housing, and also making it possible to easily change the position from which the cable is inserted to or removed.

[0035] (The effect of the structure in which the terminal box is located on the back of the door of the third enclosure) Furthermore, the third enclosure has a terminal box located on the back of a door that is supported to open and close freely, allowing wiring cable connection work to be performed with the door open and the terminal box exposed. For example, the door on which the terminal box is located is either a front door supported to open horizontally at a predetermined position on the front of the third enclosure, or an upper door supported to open upwards at a predetermined position on the top surface of the third enclosure. When the door is opened, the terminal box located on the back of the door is exposed to the outside, making it easy and simple to connect wiring cables by opening the terminal box.

[0036] (Effect of the fourth enclosure for routing wiring cables) Furthermore, a fourth enclosure is provided between the first and second enclosures and the third enclosure to form a cable routing path for wiring cables. By assigning the function of a cable rack for routing wiring cables to the fourth enclosure, separate from the third enclosure, it becomes possible to easily route wiring cables between the first and second enclosures and the third enclosure.

[0037] (Effect of the wiring in the fourth enclosure) Furthermore, the fourth enclosure has multiple cable routing paths formed in the depth direction by partition members between the entry point of the wiring cables from the first enclosure and the terminal box located in the third enclosure. For example, by forming two cable routing paths, passing the high-voltage cable through one and the low-voltage cable through the other, the maximum physically possible separation distance can be ensured between the high-voltage cable and the low-voltage cable, thereby reducing the influence of noise from the high-voltage cable on the low-voltage cable used for signal communication, etc.

[0038] (Effect of the opening between the first and second housings and the fourth housing) Furthermore, openings for inserting wiring cables are formed in the first housing, between the second housing and the fourth housing, and between the fourth housing and the third housing. Elastic closing members can be installed in the openings to close them and to provide a slit for inserting wiring cables within a predetermined range in the direction of alignment of the first and second housings. As a result, similar to the opening in the third housing, the wiring inserted through the slit in the opening is held in place by elastic force, making it easy to insert and remove wiring cables from the fourth housing, and also allowing the insertion and removal position to be easily changed.

[0039] (Width of the enclosure) Furthermore, since the housing, including the first to fourth housings, has a predetermined width corresponding to the outer diameter of the fire extinguisher, it becomes possible to thin the housing of the fire hydrant system to, for example, about 180 mm to 200 mm, making it possible to thin it to less than two-thirds the size of conventional fire hydrant systems that are installed by cutting out a box in the wall of the tunnel structure and embedding it.

[0040] (Effect of mounting and securing the enclosure using a stand on the monitoring staff walkway) Furthermore, because the housing is mounted and fixed to the top of a frame installed on the road surface of the monitoring walkway, positioned close to the tunnel wall, the fire hydrant system has been made thinner, which in turn minimizes the constraints on the width of the monitoring walkway, making it possible to install the fire hydrant system.

[0041] (Effect of mounting and securing the enclosure using a frame on the tunnel wall) Furthermore, since the housing is attached and fixed to the road-facing front of a frame installed on the tunnel wall above the road surface of the monitoring walkway, even with a wall-mounted structure, the fire hydrant device can be installed while minimizing the constraints on the width of the monitoring walkway, thanks to the slim design of the fire hydrant device itself.

[0042] (Effects of the fire hydrant device of the second invention) Another embodiment of the present invention relates to a fire hydrant system in which no fire extinguisher is placed inside the housing, but fire hydrant equipment, electrical equipment, and a terminal box are placed inside. Since the same effects as the fire hydrant system of the first invention described above can be obtained, a detailed explanation will be omitted. [Brief explanation of the drawing]

[0043] [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 a perspective view showing the fire hydrant system removed and the door of the third enclosure in the open position. [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, viewed from the front 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 the third enclosure removed from the packaging. [Figure 8] This is an explanatory diagram showing the routing of wiring cables to the terminal box of the third enclosure. [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 second embodiment of a fire hydrant device equipped with a door on a part of the top surface of the third housing. [Figure 13] This is an explanatory diagram showing the third enclosure from Figure 12 in a plan view. [Figure 14] This is an explanatory diagram showing a third embodiment of a fire hydrant device equipped with a front door on the third housing. [Figure 15] This is an explanatory diagram showing the third enclosure from Figure 14 in a plan view. [Figure 16] This is an explanatory diagram showing a fourth embodiment of a fire hydrant system in which a fourth housing is positioned between the first housing, the second housing, and the third housing. [Figure 17] This is an explanatory diagram showing the third and fourth enclosures from Figure 16, separated from the main enclosure. [Figure 18] This is an explanatory diagram showing a conventional fire hydrant system. [Modes for carrying out the invention]

[0044] The following describes in detail embodiments of the fire hydrant device according to the present invention with reference to the drawings. However, the present invention is not limited to the following embodiments.

[0045] [Basic Concepts of the Embodiment] First, the basic concept 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.

[0046] 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.

[0047] Furthermore, the "arrangement" of fire hydrant equipment, electrical equipment, terminal boxes, and fire extinguishers in relation to a fire hydrant system is a concept that includes "storage."

[0048] The housing of the fire hydrant device of the present invention is composed of at least a first housing, a second housing, and a third housing.

[0049] "The first enclosure" is a box-shaped housing in which fire hydrant equipment is placed. "The second enclosure" is a box-shaped housing connected to the side of the first enclosure in which electrical equipment and fire extinguishers are placed. "The third enclosure" is a thin box-shaped housing connected to the top of the first and second enclosures in which a terminal box is placed.

[0050] In an enclosure consisting of a first enclosure, a second enclosure, and a third enclosure, wiring cables drawn from the outside into the first enclosure are further drawn into the third enclosure and connected to a terminal box, and other wiring cables drawn out from the terminal box are drawn from the third enclosure into the second enclosure and connected to electrical equipment.

[0051] 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.

[0052] Furthermore, the width of the housing refers to the depth of the housing in the front-to-back direction, and is a predetermined width corresponding to the outer diameter of the fire extinguisher. "A predetermined width corresponding to the outer diameter of the fire extinguisher" means a width that takes into consideration that the fire extinguisher does not come into contact with the housing, since the outer diameter of the fire extinguisher is approximately 150 to 160 mm, for example, a width of approximately 180 mm to 200 mm, and refers to the length in the depth direction, not the height direction, which is roughly perpendicular to the left-to-right direction.

[0053] Furthermore, the fire hydrant system is installed exposed at a predetermined height above the road surface of the guardian's walkway, which is provided along the inner wall of the tunnel containing the road. Here, "predetermined height" refers to a height at which the fire hydrant system can be installed in close proximity to or in contact with the tunnel wall. For example, this can be achieved by attaching and fixing the housing to the upper part of a frame installed on the road surface of the guardian's walkway, or by attaching and fixing the housing to the front part of a frame installed on the tunnel wall above the road surface of the guardian's walkway, which is on the road side.

[0054] Furthermore, "framework" refers to a structure that supports objects using columns and beams, and includes concepts such as support base, foundation, base, pedestal, and base.

[0055] The fire hydrant device of the present invention will be described below in terms of first to fourth embodiments. The first embodiment of the fire hydrant device includes an upper door that can be opened and closed and supported on a surface of the third housing corresponding to the position of the terminal box, for example, on the upper surface. By opening the upper door of the third housing, it is possible to easily and simply perform on-site work such as pulling wiring cables from the first housing to the third housing and connecting them to the terminal box, as well as work during the manufacturing stage to pull wiring cables connected to electrical equipment from the second housing to the third housing and connect them to the terminal box.

[0056] The third enclosure has multiple cable routing paths formed in the depth direction by partition members between the entry point of the wiring cable from the first enclosure and the terminal box. The number of cable routing paths is arbitrary, but for example, two cable routing paths are formed, with the high-voltage cable inserted through one path and the low-voltage cable inserted through the other. This ensures that the highest possible physical distance is maintained between the high-voltage cable and the low-voltage cable, reducing the influence of noise from the high-voltage cable on the low-voltage cable used for signal communication, etc.

[0057] An opening for inserting wiring cables is formed at the bottom of the third housing, that is, between the first and second housings and the third housing. An elastic closing member with a notch for inserting wiring cables can be installed in the opening. When the elastic closing member is installed, the wiring inserted through the notch is held in place by elastic force, making it easy to insert and remove wiring cables, and also making it easy to change the position in which the cables are inserted and removed.

[0058] In the second embodiment of the fire hydrant system, the upper door is positioned on a part of the surface of the third housing corresponding to the position of the terminal box, for example, on a part of the top surface.

[0059] A third embodiment of the fire hydrant system is one in which a terminal box is arranged on the back of a front door or top door that is supported on the front or top surface of the third housing so as to be openable and closable. When the terminal box is arranged on the back of the front door, when the front door is opened, the terminal box located on the back of the door is exposed to the outside, making it possible to open the terminal box and connect wiring cables.

[0060] A fourth embodiment of the fire hydrant system includes a fourth housing positioned between the first housing and the third housing located on top of the second housing. The "fourth housing" is a box-shaped enclosure that is even thinner than the third housing which forms the cable routing path for wiring cables, and for example, has an open top and functions as a cable storage section or cable rack.

[0061] The fourth enclosure has multiple cable routing channels that are separated in the depth direction by partition members. The number of cable routing channels is arbitrary, but for example, two cable routing channels are formed, with a high-voltage cable inserted through one channel and a low-voltage cable inserted through the other. This ensures the maximum physically possible separation distance between the high-voltage cable and the low-voltage cable, thereby reducing the influence of noise from the high-voltage cable on the low-voltage cable used for signal communication, etc.

[0062] An opening for inserting wiring cables is formed on the bottom surface of the fourth enclosure. An elastic closing member, which has a notch for inserting wiring cables, can be installed in the opening. When the elastic closing member is installed, the wiring inserted through the notch is held in place by elastic force, making it easy to insert and remove wiring cables from the fourth enclosure, and also making it possible to change the position from which the cables are inserted and removed.

[0063] The following describes specific embodiments, divided into four embodiments. In the specific embodiments described below, the "fire hydrant device is mounted and fixed on a stand installed on the monitoring staff passage inside the tunnel," and the "terminal box" is described as "a terminal box for high voltage and a terminal box for low voltage."

[0064] [Specific details of the embodiment] We will now provide a more detailed explanation of the fire hydrant system and its mounting structure. The explanation will be divided as follows: a. First embodiment of a fire hydrant system a1. Overview of fire hydrant systems 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 and second enclosures b2. Structure of the third enclosure b3. Cable wiring system for fire hydrant equipment c. Second embodiment of a fire hydrant system d. Third embodiment of a fire hydrant system e. Fourth embodiment of a fire hydrant system f. Modified versions of the present invention

[0065] [a. First embodiment of a fire hydrant system] A first embodiment of the fire hydrant system 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 in a tunnel. Figure 1(A) shows the installation state of the fire hydrant system as seen in a cross-section of the tunnel, and Figure 1(B) shows the installation state of the fire hydrant system as seen in the direction of the tunnel wall. Figure 2 shows the fire hydrant system removed and the upper door of the third housing opened.

[0066] (a1. Overview of fire hydrant systems) The fire hydrant system will now be described in more detail. As shown in Figures 1(B) and 2, the fire hydrant system 10 of the first embodiment is divided into, for example, a first housing 11a, a second housing 11b, and a third housing 11c.

[0067] The first enclosure 11a houses predetermined fire hydrant equipment, including fire hoses and valves such as fire hydrant valves. The second enclosure 11b is connected to the left side of the first enclosure 11a and houses electrical equipment and fire extinguishers. The third enclosure 11c is connected to the top of the connected first enclosure 11a and second enclosure 11b and houses a terminal box. Wiring cables brought into the first enclosure 11a from the outside are connected to the terminal box, and wiring cables drawn out from the terminal box are connected to the electrical equipment located in the second enclosure 11b.

[0068] A decorative frame 13a is attached to the front of the first enclosure 11a and to the front right side of the third enclosure 11c. The door opening of the decorative frame 13a is divided into upper and lower sections. A forward-tilting door 12, which functions as a fire hydrant door, is positioned on the lower side of the door opening and opens downwards by a hinge 12a. A maintenance door 14, which opens upwards by a hinge 14a, is positioned on the upper side of the door opening.

[0069] A decorative frame 13b is attached to the front of the second enclosure 11b and to the left front of the third enclosure. To the left of the door opening of the decorative frame 13b, a fire extinguisher door 16 is positioned, which opens horizontally to the left by a hinge 16a. The inside of the fire extinguisher door 16 serves as a fire extinguisher storage area, capable of storing, for example, two fire extinguishers. 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.

[0070] An electrical door 18, which opens to the right on a hinge 18a, is positioned to the right of the door opening of the decorative frame 13b. The electrical door 18 is equipped with electrical equipment such as a red indicator light 22, a transmitter 24, and a response lamp 25, and a telephone jack 28 is provided on the inside of the door.

[0071] 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 disaster prevention receiving panel installed in the electrical room or elsewhere that receives this signal. The fire hydrant device 10 receives a response signal from the disaster prevention receiving panel, causing the red indicator light 22 to flash and the response lamp 25 to light up.

[0072] The third enclosure 11c is a thin, box-shaped housing having a width (width in the left-right direction) that connects the first enclosure 11b and the second enclosure 11b, and a height that allows for the storage of a terminal box, and functions as a terminal box storage section. An upper door 75 is positioned on the top surface of the third enclosure 11c, which opens upwards on the upper edge facing the tunnel wall by a hinge 76. By opening the upper door 75 of the third enclosure 11c, it becomes possible to connect wiring cables to the terminal box located at the bottom of the enclosure.

[0073] (a2. Installation of fire hydrant systems) The installation of fire hydrant equipment inside the tunnel will be explained in more detail. As shown in Figure 1, a road 36 is constructed in the longitudinal direction (left-right direction) of the tunnel at the bottom of the cylindrical (circular cross-section) tunnel structure constructed by the shield tunneling method, and a monitoring walkway 35 is constructed at a predetermined height relative to the road 36 on the lower side of the tunnel wall 26 along the rear side of the road 36.

[0074] In the tunnel constructed using the shield tunneling method, it is difficult to cut out a box in the tunnel wall 26 for the installation of the fire hydrant device 10. Therefore, a support frame 30 is installed on the road surface of the monitoring walkway 35, close to the tunnel wall 26, and the fire hydrant device 10 is installed by mounting and fixing a housing composed of a first housing 11a, a second housing 11b, and a third housing 11c onto 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 placed on the fire hydrant device 10 falls within the legally stipulated range of 800 mm to 1500 mm. Furthermore, the support frame 30 in this embodiment 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 downwards to follow the curved shape of the tunnel wall 26.

[0075] (a3. Installation height and slimming 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 has been optimized, and the fire hydrant device 10 has also been made as thin as possible.

[0076] 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 shows a schematic representation of the installation state of the fire hydrant device in the tunnel cross-section.

[0077] 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 of the fire hydrant device 10 installed on the monitoring staff passage 35 is set such that the horizontal centerline SL2 of the housing, which passes through the center in the height direction, is as close as possible to the horizontal tunnel centerline SL1 from the tunnel center (center of the circular cross-section) P. 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.

[0078] 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.

[0079] Next, the thinning of the fire hydrant device 10 will be explained in more detail. Among the equipment housed in the fire hydrant device 10, the largest in the front-to-back direction (the width direction of the housing) is the fire extinguisher housed in the second housing 11b. If the width of the fire hydrant device (length in the front-to-back direction) is such that the fire extinguisher can be housed in the second housing 11b, then the fire hydrant device 10 can be made thinner. Therefore, the width of the fire hydrant device 10 (depth in the front-to-back direction of the housing) is set to a predetermined width corresponding to the outer diameter of the fire extinguisher housed in the second housing 11b.

[0080] 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 second housing 11b, 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 a 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.

[0081] (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 18.

[0082] Therefore, in this embodiment, in addition to the first housing 11a and the second housing 11b, the upper parts of the first housing 11a and the second housing 11b can be used as empty space, so a third housing 11c is newly placed there, and instead of placing the terminal boxes 26a and 26b in the second housing 11b where the fire extinguisher is placed, the terminal boxes 26a and 26b are placed in the third housing 11b.

[0083] [b. Structure of fire hydrant systems] The structure of a fire hydrant system using a housing composed of a first housing 11a, a second housing 11b, and a third housing 11c will be described in more detail with reference to Figures 4 to 9.

[0084] (b1. Structure of the first and second enclosures) The structures of the first housing 11a and the second housing 11b will be described in more detail. In this description, 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 the hose storage section of the first housing in a cross-sectional view from the right side. Of these, Figure 5 is the cross-section indicated by the cutting line aa in Figure 4, and Figure 6 is the cross-section indicated by the cutting line bb in Figure 4.

[0085] The interior of the first housing 11a 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 the 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 extinguishing hose 60 using a shape-retaining hose.

[0086] 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 and closed by a known wire linkage mechanism. When the fire hydrant valve opening / closing lever 58 is opened or closed, a pump activation interlocking switch located in the control box is turned on or off. In addition, a pump activation switch 64 for use by the fire brigade is located to the upper right of the water tap 52.

[0087] 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. Here, the hose storage frame 62 has been widened to accommodate the increased width of the first housing 11a due to the thinning of the fire extinguishing device 10, and it is possible to store the same predetermined length of fire extinguishing hose 60 with fewer turns compared to conventional fire extinguishing devices. In addition, a nozzle 68 is attached to the end of the fire extinguishing hose 60 that is pulled out through the hose guide 66, and the nozzle 68 is detachably held in the nozzle holder 70.

[0088] The interior of the second enclosure 11b is a fire extinguisher storage section 50c, where two fire extinguishers 72 are stored behind a fire extinguisher door 16 that opens horizontally to the left by a hinge 16a. To the right of the fire extinguisher door 16 is an electrical door 18 that opens horizontally to the right by a hinge 18a. The electrical door 18 has, from top to bottom, a red indicator light 22, a transmitter 24, a telephone jack 28, and an answer lamp 25, with the telephone jack 28 located on the inside of the electrical door 18.

[0089] 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 each electrical equipment while still securing space for cable routing.

[0090] (b2. Structure of the third enclosure) The structure of the third enclosure will be explained in more detail. For this explanation, please refer to Figure 7, which shows the third enclosure removed from the body; Figure 8, which shows the cable wiring of the third enclosure; Figure 9, which shows the terminal box; Figure 10, which shows the cable wiring system of the fire hydrant device; and Figure 11, which shows the details of the wiring to the terminal box to which the low-voltage cables are connected. Of these, Figure 7(B) is the cross-section shown by the cutting line cc in Figure 7(A), and Figure 8(B) is the cross-section shown by the cutting line dd in Figure 8(A).

[0091] The third housing 11c consists of a box-shaped body 74 and a top lid 75. The width of the box-shaped body 74 is the length of the first housing 11a and the second housing 11b connected together, the depth is a predetermined width corresponding to the outer diameter of the fire extinguisher, for example, within the range of 180mm to 200mm, the same as the first housing 11a and the second housing 11b, and the height is set to allow the terminal box to be housed inside.

[0092] The upper door 75 is positioned to open upwards into the upper opening of the box-shaped body 74 by, for example, three hinges 76. Furthermore, mounting holes 78 are formed in, for example, three locations on the front edge of the upper door 75, and screw holes 80 are formed in positions opposite to the closed position of the box-shaped body 74, allowing the upper door 75 to be fixed in the closed position with screws. Note that the opening / closing and closing structures of the upper door 75 are not limited to those described above and are arbitrary.

[0093] Inside the box-shaped main body 74, terminal boxes 26a and 26b are arranged horizontally at the bottom. Terminal box 26a is used for connecting high-voltage wiring cables, and terminal box 26b is used for connecting low-voltage wiring cables.

[0094] Here, we will explain terminal boxes 26a and 26b in more detail. Figure 9 shows terminal box 26a, which is located in the third housing 11c, with Figure 9(A) being a top view of terminal box 26a, Figure 9(B) being a front view of terminal box 26a, and Figure 9(C) being a side view of terminal box 26a. Terminal box 26b is similar.

[0095] The terminal box 26a consists of a box body 260 and a lid member 262, and when placed in the third housing 11c, its dimensions (length (top and bottom) x width (left and right) x depth (front and back)) are approximately 80mm x 220mm x 140mm. 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 for the connection of wiring cables to the terminal block 280a.

[0096] 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 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.

[0097] As shown in Figure 7, an opening 82 is formed at the bottom right end of the box-shaped body 74 for inserting a wiring cable between the first housing 11a and the third housing 11c. Details of the opening 82 are shown in the enlarged view indicated by the arrow. The opening 82 formed at the bottom is closed by, for example, attaching an elastic closing plate 90 to the lower side by adhesive, and the elastic closing plate 90 has a notch 84 that penetrates in the thickness direction.

[0098] The elastic closing plate 90 is made of an elastomer (an elastic polymer material), such as rubber (natural rubber, artificial rubber) or resin-based elastomer (urethane rubber, silicone rubber, fluororubber, etc.). The formation of a notch 84 in the elastic closing plate 90 makes it possible to insert a wiring cable through any position in the notch 84, and the wiring cable inserted through the notch 84 is held in place by the elastic restoring force of the elastic closing plate 90.

[0099] Furthermore, another opening 82 is formed at the bottom left of the terminal box 26b of the box-shaped main body 74 for inserting wiring cables between the second housing 11b and the third housing 11c, and, like the opening 82 on the right side, is closed by an elastic closing plate 90 having a notch 84. Note that the arrangement of the openings 82 where the elastic closing plate 90 with the notch 84 is installed is not limited to two locations, and may be in any position and number as needed.

[0100] Furthermore, a partition plate 86 is positioned upright in the left-right direction between the opening 82 at the right end of the box-shaped body 74 and the terminal box 26a. The partition plate 86 divides the inside of the box-shaped body 74 into a first track 88a at the back and a second track 88b at the front, allowing for the physical separation of high-voltage cables and low-voltage cables into the first track 88a and the second track 88b.

[0101] (b3. Cable wiring system for fire hydrant equipment) The cable wiring systems in the first housing 11a, second housing 11b, and third housing 11c of the fire hydrant system 10 will be described in more detail.

[0102] As shown in Figure 10, the electrical door 18 of the second enclosure 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 located in the third enclosure 11c, 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 located in the third enclosure 11c.

[0103] 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 device 10, and are connected to the terminal block 280b of the terminal box 26b located in the third housing 11c.

[0104] A high-voltage cable 53, supplied with AC100V power from an external source, is routed into the valve storage compartment 50a of the first housing 11a. The high-voltage cable 53 is then routed further to the third housing 11c and connected to the terminals of the terminal block 280a of the terminal box 26a located in the third housing 11c, thereby connecting to the red indicator light 22 located on the electrical door 18 of the second housing 11b.

[0105] 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 of Figure 10), which is supplied with DC48V power from an external source, is routed into the valve storage section 50a of the first housing 11a. The low-voltage cable 55 is then routed into the third housing 11c and connected to the terminals of the terminal block 280b of the terminal box 26b located in the third housing 11c, thereby connecting to the telephone jack 28, response lamp 25, and transmitter 24 located in the electrical door 18 of the second housing 11b.

[0106] Furthermore, the switch cable 57 connected to the pump start switch 64 and the pump start interlock switch 65, which are located in the valve storage section 50a of the first housing 11a, is routed into the third housing 11c and connected to the terminals of the terminal block 280b of the terminal box 26b, thereby connecting to the transmitter 24 located on the electrical door 18 of the second housing 11b.

[0107] 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.

[0108] Figure 8 shows the cable routing of the third enclosure 11c corresponding to the cable wiring system in Figure 10. The high-voltage cable 53, drawn in from the opening 82 at the right end of the third enclosure 11c, passes through the first cable route 88a on the far side, separated by a partition plate 86, and connects to the high-voltage terminal box 26a. The low-voltage cable 55 and switch cable 57, also drawn in from the opening 82 at the right end, pass through the second cable route 88b on the near side, separated by a partition plate 86, and connect to the low-voltage terminal box 26b.

[0109] By passing the high-voltage cable 53 through the first transmission line 88a and the low-voltage cable 55 and switch cable 57 through the second transmission line 88b, the maximum physically possible separation distance can be ensured between the high-voltage cable 53 and the low-voltage cable 55 and switch cable 57, thereby reducing the influence of noise from the high-voltage cable 53 on the low-voltage cable 55 and switch cable 57 used for signal communication and other purposes.

[0110] The high-voltage cable 53 drawn out from the terminal box 26a is routed through the left-side opening 82 of the box-shaped main body 74 into the second housing 11b and connected to the red indicator light 22 on the electrical door 18. Additionally, the switch cables 57 from the pump start switch and interlocking switch are routed through the right-side opening 82 of the box-shaped main body 74 into the third housing 11c, and connected to the terminal box 26b via the second line 88b. Furthermore, the low-voltage cable 55 and switch cables 57 drawn out from the terminal box 26b are routed through the left-side opening 82 of the box-shaped main body 74 into the second housing 11b and connected to the transmitter 24, response lamp 25, and telephone jack 28 on the electrical door 18.

[0111] [c. Second embodiment of the fire hydrant system] A second embodiment of the fire hydrant system will be described in more detail. In this description, refer to Figure 12, which shows a second embodiment of the fire hydrant system with a door on a part of the top surface of the third housing, and Figure 13, which shows the third housing of Figure 12 removed and in a plan view.

[0112] As shown in Figure 12, in the second embodiment of the fire hydrant device 10, an upper door 75 that opens upward by a hinge 76 is positioned in a central door opening, which is part of the upper surface of the third housing 11c located on top of the first housing 11a and the second housing 11b.

[0113] As shown in Figure 13, the door opening where the upper door 75 is located overlooks the terminal boxes 26a and 26b located inside the box-shaped body 74 and the openings 82 formed at the bottom on both sides of them. Opening the upper door 75 allows for the laying of wiring cables to the terminal boxes 26a and 26b. Except for the absence of a partition plate between the right-side opening 82 of the box-shaped body 74 through which the wiring cables are drawn in from the first housing 11a and the terminal boxes 26a, this is the same as the first embodiment, and therefore its description is omitted. By providing the upper door 75 on a portion of the top surface of the third housing 11c in this way, the size of the upper door 75 can be reduced, and the door structure can be simplified.

[0114] [d. Third embodiment of a fire hydrant system] A third embodiment of the fire hydrant system will be described in more detail. In this description, refer to Figure 14, which shows a third embodiment of the fire hydrant system with a front door on the third housing, and Figure 15, which shows the third housing of Figure 14 removed and in plan view. Of these, Figure 15(B) is a cross-section shown by the cutting line ee in Figure 15(A), and Figure 15(C) is a cross-section shown by the cutting line ff in Figure 15(A).

[0115] As shown in Figure 14, in the third embodiment of the fire hydrant device 10, a first front door 92a and a second front door 92b, which open horizontally to the left and right, are located in the center of the front of the third housing 11c, which is positioned on top of the first housing 11a and the second housing 11b.

[0116] As shown in Figures 15(A), (C), and (D), the first front door 92a and the second front door 92b open laterally to the left and right by hinges 95 on both sides. In the closed state shown in Figure 15(A), they are fixed in the closed position by, for example, tightening lock screws 93 on the door mating surfaces.

[0117] As shown in Figure 15(B), a terminal box 26a is positioned on the back of the first front door 92b by a mounting base 94. Therefore, as shown in Figure 15(D), when the first front door 92a is opened, the terminal box 26a positioned on the back of the door is pulled out to the outside through the front opening and exposed, making it easy to lay wiring cables to the terminal box 26a.

[0118] The same applies to the second front door, where a terminal box 26b is located on the back of the second front door 92b. When the second front door 92b is opened, the terminal box 26b located on the back of the door is pulled out from the front opening and exposed, making it easy to lay wiring cables to the terminal box 26b.

[0119] Furthermore, openings 82 are formed in the bottom of the third housing 11c corresponding to both sides of the front door opening, and a notch 84 for inserting wiring cables is formed by the installation of an elastic closing plate 90, making it possible to pull wiring cables between the first housing 11a and the second housing 11b with the first front door 92a and the second front door 92b open. The rest of the structure and arrangement are the same as in the first embodiment shown in Figures 7 to 11, so their explanation will be omitted. In this embodiment, terminal boxes 26a and 26b are arranged on the back of both front doors of the third housing 11c, but the terminal boxes 26a and 26b may also be attached and fixed to the back of the upper door 75 that opens upward as shown in Figures 2 and 11.

[0120] [e. Fourth embodiment of a fire hydrant system] A fourth embodiment of the fire hydrant system will be described in more detail. In this description, we will refer to Figure 16, which shows the fourth embodiment of the fire hydrant system equipped with the fourth housing, and Figure 17, which shows the third and fourth housings of Figure 16 separated and in plan view. Of these, Figure 17(B) is a cross-section indicated by the cutting line gg in Figure 17(A), Figure 17(C) is a cross-section indicated by the cutting line hh in Figure 17(A), and Figure 17(D) is a cross-section indicated by the cutting line ii in Figure 17(A).

[0121] As shown in Figure 16, in the fourth embodiment of the fire hydrant device 10, the fourth housing 11d is positioned between the first housing 11a and the second housing 11b and the third housing 11c.

[0122] As shown in Figure 17(A), the fourth housing has a cable storage section 50e formed between the first housing 11a and the second housing 11b and the third housing 11c, which has a terminal box storage section 50d inside, to form a cable passage for wiring cables. The cable storage section 50e also forms a cable rack through which wiring cables are inserted from a predetermined entry point to an exit point.

[0123] Here, the third housing 11b is shown as the third embodiment in Figures 12 and 13, but it may also be the third housing 11c of the first embodiment shown in Figures 7 and 8, or the third embodiment shown in Figures 14 and 15.

[0124] The fourth housing 11b, which forms the cable storage section 50e, is a thin, box-shaped housing with an opening at the top. Its width and depth are the same as the connecting width and depth of the first housing 11a and the second housing 11b, and the width and depth of the third housing 11c. Its height is arbitrary, as long as it can accommodate wiring cables and the bending radius of the cables is appropriate, but it is, for example, about several tens of millimeters.

[0125] The fourth housing 11d is connected and fixed to the upper parts of the first housing 11a and the second housing 11b, and the third housing, which is positioned on top, is connected to it so that it can be opened upward by hinges 97 located at three locations on the opening end on the tunnel wall side, as shown in Figures 17(A), (B), and (D). Furthermore, in order to fix the third housing 11c to the upper part of the fourth housing 11d, screw holes 100 are formed at two locations on the inside of the front end of the upper opening of the fourth housing 11d, as shown in Figure 17(D), and mounting holes 102 are formed at the bottom of the third housing 11c as shown in Figure 17(C), corresponding to the screw holes 100, and screws can be fastened through the mounting holes 102 to the screw holes 100 to fix the housing 11c.

[0126] Furthermore, as shown in Figure 17(D), multiple openings 82 are formed in the bottom surface of the fourth housing 11d at predetermined intervals in the left-right direction. Notches 84 are formed in the openings 82 by installing elastic closing plates 90. The three openings 82 on the right side allow wiring cables to pass through to the first housing 11a, and the two openings 82 on the left side allow wiring cables to pass through to the second housing 11b. The bottom surface of the fourth housing 11d becomes the top surface (ceiling surface) of the first housing 11a and the second housing 11b, and the bottom surface of the third housing 11c becomes the top surface (ceiling surface) of the fourth housing 11d.

[0127] Furthermore, as shown in Figures 17(B) and 17(D), a partition plate 96 is positioned upright in the left-right direction in the center of the depth direction of the bottom surface of the fourth housing 11d, dividing the cable storage section 50e into a first cable track 98a at the back and a second cable track 98b at the front.

[0128] The wiring cable installation process using the fourth housing 11d will now be explained in more detail. First, as shown in Figure 17(C), the top door 75 of the third housing 11c is opened using the hinge 76, the screws fastened to the screw holes 100 of the fourth housing 11d via the mounting holes 102 at the bottom are removed, the third housing 11c is opened using the hinge 97, and the top surface of the fourth housing 11d is opened as shown in Figure 17(D).

[0129] In this state, the high-voltage cable that has been pulled into the first housing 11a is inserted through the opening 82 at the right end of the fourth housing 11d and pulled into the first track 98a, and after passing through the first track 98a, it is pulled into the third housing 11c through the opening 82 at the right end as shown in Figure 17(C). Next, the third housing 11c is returned to the top of the fourth housing 11d and the top door 75 is opened as shown in Figure 17(C), and the high-voltage cable pulled from the fourth housing 11d is connected to the high-voltage terminal box 26a. The high-voltage cable pulled out from the terminal box 26a is then pulled into the lower fourth housing 11d, for example, by inserting it through the central opening 82, and then through the first track 98a of the fourth housing 11d, for example, by inserting it through the second opening 82 from the left and pulling into the lower second housing 11b, and connected to the red indicator light on the electrical door.

[0130] Furthermore, the low-voltage cable brought into the first housing 11a is similarly routed through the opening 82 at the right end of the fourth housing 11d to the second line 98b, and after passing through the second line 98b, it is routed through the central opening 82 shown in Figure 17(C) to the third housing 11c and connected to the low-voltage terminal box 26b. Also, the low-voltage cable pulled out from the terminal box 26b is routed, for example, through the opening 82 at the left end to the lower fourth housing 11d, through the second line 98b of the fourth housing 11d, and for example, through the second opening 82 from the left to the lower second housing 11b, and connected to the transmitter, response lamp, and telephone jack of the electrical door.

[0131] As described above, the placement of the fourth housing 11d, which forms a cable storage section 50e (cable rack), between the first housing 11a and the second housing 11b and the third housing 11c reduces the amount of wiring cables required within the third housing 11c. Furthermore, by allowing some slack in the wiring cables inserted into the fourth housing 11d, it becomes possible to insert and remove wiring cables in the first housing 11a, the second housing 11b, and the third housing 11c, making it easy to adjust the wiring length.

[0132] Furthermore, by passing the high-voltage cable 53 through the first transmission line 98a of the fourth housing 11d and the low-voltage cable 55 through the second transmission line 98b, the maximum physically possible separation distance can be ensured between the high-voltage cable 53 and the low-voltage cable 55, thereby reducing the influence of noise from the high-voltage cable on the low-voltage cable used for signal communication and the like.

[0133] [f. Variations of the present invention] Modifications of the fire hydrant device according to the present invention will now be described. In addition to the embodiments described above, the fire hydrant device of the present invention includes the following modifications.

[0134] (Wall-mounted fire hydrant system) The above embodiment takes as an example a fire hydrant device with a stationary structure in which the housing is attached and fixed to the upper part of a frame installed on the road surface of the guardian's walkway, close to the tunnel wall. However, it is not limited to this, and in the case of a wall-mounted fire hydrant device with a wall-mounted structure in which the housing is attached and fixed to the front part on the road side of a frame installed on the tunnel wall above the road surface of the guardian's walkway, a third housing can be placed on top of the first and second housings to provide a terminal box, thereby enabling a thinner fire hydrant device without being restricted by the placement of the terminal box.

[0135] (Fire hydrant system without a fire extinguisher storage compartment) In the above embodiment, a fire extinguisher storage compartment is provided in the second housing to house the fire extinguisher. However, a fire hydrant system may also be constructed in which only electrical equipment is placed in the second housing without a fire extinguisher storage compartment. In this case as well, a third housing is connected to the first housing containing the fire hydrant equipment and the second housing containing only the electrical equipment, with a terminal box placed on top of the second housing. The third housing is the same as in the first to fourth embodiments described above.

[0136] (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.

[0137] (Structure of a fire hydrant device designed for a thinner design) In the fire hydrant device of the above embodiment, the width of the first and second housings is increased to compensate for the reduction in internal volume due to the thinning of the fire hydrant device. However, the height of the first and second housings may also be increased to compensate for the reduction in internal volume due to the thinning.

[0138] (L-shaped door) In the above embodiment, the third housing is provided with an upper door or a front door. However, the upper door may be an L-shaped door that extends to the front of the third housing, and the front and top surfaces of the third housing may be opened by opening the L-shaped door upwards with the upper end on the tunnel wall side as the pivot point.

[0139] (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]

[0140] 10: Fire hydrant system 11a: First enclosure 11b: Second cabinet 11c: Third cabinet 11d: Cabinet No. 4 12: Forward-sloping door 13a, 13b, 13c: Decorative frame 14: Maintenance Door 16: Fire extinguisher door 17: Peephole 18: Electric Door 22: Red indicator light 24: Transmitter 25: Response lamp 26a, 26b: Terminal box 28: Phone hijacking 30: Stand 35: Guard passage 36: Road 48: Water supply piping 50a: Valve storage compartment 50b: Hose storage compartment 50c: Fire extinguisher storage compartment 50d: Terminal box storage section 50e: Cable 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 74: Box-shaped main body 75: Upper door 76,95,97: Hinge 78,102: Mounting holes 80,100: Screw holes 82: Opening 84: Cut section 86,96: Partition plate 88a, 98a: First railway line 88b, 98b: 2nd passageway 90: Elastic closing plate 92a: First front door 92b: Second front door 94: Mounting base

Claims

1. A fire hydrant system in which fire hydrant equipment, electrical equipment, terminal box, and fire extinguishers are arranged in a housing installed in a monitoring walkway along the tunnel wall of a tunnel with a road, The aforementioned enclosure is The first housing in which the fire hydrant equipment is arranged, A second housing is connected to the side of the first housing and in which the electrical equipment and the fire extinguisher are arranged, A third housing is connected to the upper part of the first housing and the second housing, and the terminal box is located on it, and the third housing has an L-shaped door that is supported at a predetermined position and whose top and front surfaces are able to open upwards, Composed of, A fire hydrant system characterized in that a wiring cable is drawn from the first housing to the third housing and connected to the terminal box, and other wiring cables that are connected to the terminal box and pulled out are drawn from the third housing to the second housing and connected to the electrical equipment.

2. A fire hydrant system in which fire hydrant equipment, electrical equipment, and a terminal box are arranged in a housing installed in a monitoring walkway along the tunnel wall of a tunnel with a road, The aforementioned enclosure is The first housing in which the fire hydrant equipment is arranged, A second housing is connected to the side of the first housing and in which the electrical equipment is arranged, A third housing is connected to the upper part of the first housing and the second housing, and the terminal box is located on it, and the third housing has an L-shaped door that is supported at a predetermined position and whose top and front surfaces are able to open upwards, Composed of, A fire hydrant system characterized in that a wiring cable is drawn from the first housing to the third housing and connected to the terminal box, and the wiring cable that is drawn out from the terminal box is drawn from the third housing to the second housing and connected to the electrical equipment.

3. A fire hydrant device according to claim 1 or 2, The fire hydrant device is characterized in that the third housing is provided with an L-shaped door corresponding to the position of the terminal box.

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