Fire hydrant device and fire hydrant equipment

Abstract

To facilitate performing drawing a hose from a hose storage part.SOLUTION: A fire hydrant device includes a hose storage part 40 which is positioned at use on a road surface of a watchman passage 14 disposed along a tunnel wall face 12, and in which a fire extinction hose 46 having a nozzle 48 equipped at the tip is stored so as to be freely drawn. The hose storage part 40 includes a housing 41 in which hose take-out ports 44 are opened at front and rear sides to be the tunnel wall face 12 side and a road 15 side, and a fire hydrant valve opening / closing lever 45 arranged at a lateral side to be the direction of travel of the watchman passage 14 and the road 15, and capable of being operated from outsides on the front and rear sides of the housing. Furthermore, there are provided: a nozzle operation display board 49 positioned so as to be visible from the watchman passage 14 side and the road 15 side at use, and written with an operation instruction of the nozzle 48; and an opening / closing lever operation display board 53 written with an operation instruction of the fire hydrant valve opening / closing lever.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a fire hydrant device in which a hose is stored in a hose storage section so that the hose can be freely pulled out, and a fire hydrant facility in which the fire hydrant device is installed. [Background technology]

[0002] Conventionally, fire hydrant devices have been provided as emergency equipment inside tunnels on expressways, motorways, and the like. In a fire hydrant device, a hose with a nozzle at the end and valves are stored in a fire hydrant storage section of a housing equipped with an openable fire hydrant door, and two fire extinguishers, for example, are stored in a fire extinguisher storage section equipped with an openable fire extinguisher door.

[0003] Such fire hydrant devices are installed, for example, at intervals of 50 meters along the side walls facing the guard passage installed inside the tunnel. The guard passage is installed as a side wall passage that is about 1 meter higher than the road surface, making it possible for the guard to inspect various equipment installed inside the tunnel, including the fire hydrant devices, safely without interfering with vehicle traffic inside the tunnel.

[0004] In the event of a vehicle accident involving a fire, the driver or other user of the accident vehicle can open the fire hydrant door of the fire hydrant device, pull out the hose with the nozzle, and operate the fire hydrant valve opening / closing lever to start the fire pump equipment and spray water, thereby carrying out fire extinguishing operations. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2008-055024 A [Patent Document 2] JP 2009-285126 A [Patent Document 3] Japanese Patent Application Publication No. 05-123411 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the case of fire hydrant devices installed in conventional tunnels, they were installed along the tunnel side wall facing the guard passage, so in the event of a fire caused by a vehicle accident, users had to reach out from the road surface to the fire hydrant device installed on the tunnel side wall beyond the guard passage, open the fire hydrant door, and pull out the hose to carry out firefighting operations.However, because the fire hydrant device was installed at a high position away from the road surface, some people were unable to reach it and had to climb up into the guard passage to operate it.In addition, some guard passages were equipped with handrails, which got in the way of firefighting operations and made it difficult to use.

[0007] In order to solve this problem, the applicant of the present application has proposed a lift-up type fire hydrant that can be simply and easily handled from the road side and the guard passage side. In the lift-up type fire hydrant, a hose storage unit containing a hose with a nozzle is arranged in the guard passage so that it can be raised and lowered by a lifting mechanism, and when a vehicle accident involving a fire occurs in a tunnel, by performing a specified operation, the hose storage unit is raised to an exposed position above the guard passage and locked by the operation of the lifting mechanism, and the hose with the nozzle can be simply and easily pulled out from the hose outlet of the hose storage unit exposed above the guard passage to put out the fire without the need to open the fire hydrant door.

[0008] Incidentally, in this type of lift-type fire hydrant equipment, when the hose storage unit is raised and engaged in an exposed position above the guard passage by operation of the lifting mechanism, firefighting work can be carried out by removing the nozzle from the hose outlet on the road side or the hose outlet on the guard passage side and pulling out the hose; however, the nozzle needs to be engaged in the hose storage unit so that it can be removed from both the hose outlets on the road side and the guard passage side, and this issue remains a problem to be solved.

[0009] Furthermore, even in conventional fire hydrant devices in which the nozzle is removed by opening the hydrant door, the nozzle holder is fixed to a frame pipe or the like provided in the hose storage section, and the nozzle is detachably engaged thereto. When removing the nozzle and pulling out the hose, there is a problem in that the hose comes into contact with the nozzle holder fixed to the frame pipe or the like, causing wear and tear.

[0010] An object of the present invention is to provide a fire hydrant device and a fire hydrant facility that allow a hose to be pulled out simply and easily from a hose storage section. [Means for solving the problem]

[0011] (Fire hydrant equipment) The present invention is a fire hydrant device that is located on the road surface of a guard passageway that is provided along a tunnel wall when in use, and has a hose storage section in which a hose with a nozzle attached to the tip is stored so that it can be freely pulled out, A switching mechanism for switching between supplying water to the hose and stopping the water supply (for example, a valve such as a fire hydrant valve or an electric valve), A housing having a hose outlet opening on the front and rear sides of the hose storage section, which are the tunnel wall side and the road side; An operation section (for example, a fire hydrant valve opening / closing lever or a water discharge / water discharge stop switch that opens and closes a motorized valve) that is located on the side of the hose storage section in the direction of travel of the guard passage and the road and that allows switching operation of the switching mechanism from the front or rear of the housing; The present invention is characterized by comprising:

[0012] (Nozzle operation display panel) A nozzle operation display board with instructions for operating the nozzle is provided inside the housing, positioned so as to be visible from the guard passage side and the road side when in use.

[0013] (Opening / Closing Lever Operation Display Panel) The housing is provided with an opening / closing lever operation display board which is positioned so as to be visible from the monitor's passage and the road side when in use, and which displays instructions on how to operate the fire hydrant valve opening / closing lever, which is the operating part.

[0014] (Fire hydrant facilities) The present invention also provides a fire hydrant system including a monitor passage provided along a road in a tunnel and a fire hydrant embedded part formed in the monitor passage, The above-mentioned fire hydrant device is characterized in that it is embedded in a fire hydrant embedded section so as to be freely raised and lowered. Effect of the Invention

[0015] (Basic effect) The present invention relates to a fire hydrant device equipped with a hose storage section in which a fire hose is stored so that it can be freely pulled out, and when the fire hydrant device is installed, the hose is stored in an inwardly wound manner in which it is layered from the outer periphery to the inner periphery in the hose storage section so that it is perpendicular to the installation surface, and the hose storage section has an inclined structure in which the width in the direction of the winding axis of the inward winding increases from the outer periphery to the inner periphery, and specifically, a hose outlet that allows the stored hose to be freely pulled out to the outside is formed on a specified side of the hose storage section, and the inclined structure of the hose storage section is such that the partition member is arranged at an incline so that it opens outward from the upper part or lower part of the hose storage section toward the hose outlet, so that the hose is inwardly wound vertically between the partition member that opens outward from the upper part of the hose storage section toward the hose outlet and the partition member that opens outward from the lower part of the hose storage section toward the hose outlet, and when the hose is pulled out, frictional resistance is reduced and the hose can be pulled out with light force.

[0016] In addition, when firefighting operations are completed and the hose is rewound into the hose storage section, the hose is wound inward vertically between a partition member that opens outward from the top of the hose storage section toward the hose outlet, and a partition member that opens outward from the bottom of the hose storage section toward the hose outlet. By limiting the number of turns and stages by the partition member, the hose can be rewound to the specified number of turns and stages regardless of who rewound it, ensuring a stable inwardly wound state of the hose and enabling the hose to be pulled out smoothly. [Brief description of the drawings]

[0017] [Figure 1] An explanatory diagram showing emergency equipment for tunnels, including fire hydrants installed inside a shield tunnel. [Diagram 2] An explanatory diagram showing a fire hydrant storage box for storing a hose from the front, top, and side [Diagram 3] An explanatory diagram showing the front and side of a fire hydrant storage box with the hose storage section raised and exposed above the guard passageway. [Figure 4] An explanatory diagram showing the fire hydrant storage box from the back with the hose storage section raised and exposed above the guard passageway. [Diagram 5] An explanatory diagram showing the internal structure as seen from the road side in cross section with the hose storage section elevated by the lifting mechanism and exposed above the guard passageway [Figure 6] Diagram showing the water discharge control system of a fire hydrant facility [Figure 7] FIG. 1 is an explanatory diagram showing a first embodiment of a nozzle locking structure. [Figure 8] FIG. 8 is an explanatory diagram showing the state in which the nozzle is held in the hose storage section by the nozzle holder of FIG. 7. [Figure 9] FIG. 11 is an explanatory diagram showing a second embodiment of the nozzle locking structure. [Figure 10] FIG. 10 is a front and cross-sectional view of the nozzle holder of FIG. 9. [Figure 11] FIG. 1 is a front and cross-sectional view of a nozzle holder supported on a hose, showing the state in which the nozzle is engaged. [Figure 12] FIG. 1 is an explanatory diagram showing an embodiment of a nozzle locking structure in which a pipe frame of a hose storage section has a magnetic attraction function. [Figure 13] An explanatory diagram showing the nozzle locking by the nozzle holder in a fire hydrant device equipped with a fire hydrant door, viewed from the front with the fire hydrant door and maintenance door removed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] [Outline of emergency equipment for tunnels] Fig. 1 is an explanatory diagram showing emergency tunnel facilities including fire hydrant facilities installed in a tunnel for expressways. As shown in Fig. 1, the inside of a tunnel 10 constructed by the shield method is covered with a cylindrical tunnel wall 12, and a road 15 is provided by dividing it with a deck 18. In this example, the road 15 has two lanes in one direction.

[0019] A guard passage 14 is provided along the tunnel wall 12 on the left side of the road 15 separated by a deck 18, and the internal space below the guard passage 14 is used as a duct 22 in which electrical conduits, etc. are laid.

[0020] The underside of the deck 18 on which the road 15 is formed is divided into multiple sections laterally of the tunnel, and for example, the section located below the guard passage 14 is used as a maintenance passage 20, which is also used as an emergency evacuation passage in the event of a fire inside the tunnel. A water supply main 24 is laid in the maintenance passage 20.

[0021] Fire hydrant facilities 16 are installed every 50 meters along the longitudinal direction of the tunnel 10, and the fire hydrant equipment of the fire hydrant facilities 16 is installed separately in a fire hydrant storage box 30 which stores the hose, and in a control mechanism storage section 66.

[0022] The fire hydrant storage box 30 is placed in a fire hydrant embedded section that is hollowed out in a box shape extending from the road surface of the monitor passage 14 to the wall surface on the road 15 side. The control mechanism storage section 66 is placed in the management passage 20 below the fire hydrant storage box 30, and a branch pipe branching off from the main water supply pipe 24 is led into the control mechanism storage section 66, and a water supply pipe that supplies fire water to the fire hydrant storage box 30 is also erected.

[0023] The fire hydrant storage box 30 of the fire hydrant equipment 16 is provided with a hose storage section in which a hose with a nozzle is stored and a lifting mechanism for the hose storage section. When a specified lifting operation is performed, the lifting mechanism raises the hose storage section to an exposed position above the monitor passage 14, making it possible to pull out the hose with the nozzle for fire extinguishing work.

[0024] [Fire hydrant facilities] Figure 2 is an explanatory diagram showing a fire hydrant storage box that stores a hose from the front, top, and side, Figure 3 is an explanatory diagram showing the fire hydrant storage box from the front and side with the hose storage section raised and exposed above the monitor's passage, and Figure 4 is an explanatory diagram showing the fire hydrant storage box from the back with the hose storage section raised and exposed above the monitor's passage.

[0025] (External structure of fire hydrant storage box) As shown in Figure 2, the fire hydrant storage box 30 of the fire hydrant equipment 16 is embedded in the internal space below the floor of the monitor passage 14. Inside the fire hydrant storage box 30, there is disposed a hose storage section 40 that is raised and lowered by the drive of a hydraulic cylinder 56 of a lifting mechanism 54 that uses a pantograph mechanism.

[0026] The fire hydrant storage box 30 has an opening 34 formed on the front of the housing 32, and an inspection door 36 is fixed to the opening 34 with a number of bolts and can be removed by removing the bolts.

[0027] On the front of the inspection door 36, a nameplate indicating "foam fire hydrant" is placed in four separate letters, and handles 38 are provided in two places on the top to be used when removing or installing the inspection door 36. Also, an operation display panel 39a showing operating instructions is placed in the center of the inspection door 36.

[0028] 2(B), a road surface plate 43 of the hose storage section 40, which is raised and lowered by a lifting mechanism 45, is located at the upper part of the fire hydrant storage box 30 that forms the road surface of the monitor passage 14, and closes the upper side of the housing 32. On this road surface plate 43, an operation display plate 39b facing the road 15 side and an operation display plate 39c facing the monitor passage 14 side are arranged.

[0029] A reporting device panel is provided corresponding to the fire hydrant storage box 30, and the reporting device panel is provided with a red indicator light, a transmitter, and a response lamp, but these are not shown in the figure. The reporting device panel is also provided with an up switch and a down switch for raising and lowering the hose storage section provided in the fire hydrant storage box 30, but these are not shown in the figure.

[0030] (Structure of fire hydrant equipment installed in interior spaces) FIG. 3 is an explanatory diagram showing the fire hydrant storage box from the front and side with the hose storage section raised and exposed above the watchman's passage, and FIG. 4 is an explanatory diagram showing the fire hydrant storage box from the back with the hose storage section raised and exposed above the watchman's passage.

[0031] As shown in Figures 3 and 4, a hose storage unit 40 is arranged so as to be able to move up and down inside a fire hydrant storage box 30 installed in a monitor passage 14. The hose storage unit 40 has a box-shaped housing 41 with openings on the front and back, and two frame pipes 42a are arranged in the opening on the front of the housing 41, with a front hose outlet 44a formed therebetween for pulling out a hose 46 from the road 15 side. Partition plates 47a are arranged above and below the front hose outlet 44a.

[0032] Two frame pipes 42b are also arranged in the opening on the back surface of the housing 41, and a rear hose outlet 44b is formed between them for pulling out the hose 46 from the side of the monitor passage 14. Partition plates 47b are arranged above and below the rear hose outlet 44b.

[0033] A hose 46 with a nozzle 48 attached to its tip is stored in a vertically inwardly wound state inside the hose storage section 40. At the bottom of the inner hollow portion formed by the inward winding of the hose 46, the nozzle 48 is detachably attached by a nozzle holder with the grip facing upward.

[0034] Here, the front hose outlet 44a shown in FIG. 3(A) is formed approximately in the vertical center of the front surface of the housing 41, whereas the rear hose outlet 44b shown in FIG. 4 is formed in a position offset downward from the vertical center of the rear surface, making it easier for a user to remove the nozzle 48 engaged in the hose storage section 40 when operating the device from the monitor passage 14 side.

[0035] A fire hydrant valve opening / closing lever 45 is provided inside the housing 41 on the right side of the hose storage section 40, and the fire hydrant valve opening / closing lever 45 opens and closes the pilot manual valve 90, making it possible to remotely open and close the fire hydrant valve separately arranged in the control mechanism storage section 66 inside the management passage 20. Note that instead of the fire hydrant valve opening / closing lever 45, a water discharge switch that operates the water discharge control mechanism provided in the control mechanism storage section 66 arranged in the management passage 20 to open the motor-operated valve and a water discharge stop switch that closes the motor-operated valve may be provided.

[0036] A maintenance valve 85 is provided inside the housing 41 on the right side of the hose storage section 40. The maintenance valve 85 is provided on a pipe that connects a water supply pipe from the control mechanism storage section 66 arranged in the management passage 20 to the hose 46. Therefore, during inspection, with the hose storage section 40 raised and exposed above the observer passage, a water discharge test can be easily performed by attaching a maintenance hose (test hose) to the maintenance valve 85.

[0037] On the front of the hose storage section 40, which has been raised above the monitor passage as shown in Figure 3(A), there are arranged a nozzle operation display panel 49a, a first display panel 98a on which operating instructions are displayed in three parts, and an opening / closing lever operation display panel 53a.

[0038] In addition, on the back surface of the hose storage section 40, which is raised above the monitor passage as shown in Figure 4, there are disposed a nozzle operation display panel 49b, a second display panel 98b showing operation instructions divided into three panels, and an opening / closing lever operation display panel 53b.

[0039] (Lifting mechanism) Figure 5 is an explanatory diagram showing a cross section of the internal structure as seen from the road side when the hose storage section has been raised by the lifting mechanism and exposed above the guard passage.

[0040] As shown in FIG. 5, the hose housing portion 40 is supported by a lifting mechanism 54 so as to be able to move up and down freely. In this embodiment, a pantograph mechanism is used as the lifting mechanism 54.

[0041] Lifting mechanism 54 using a pantograph mechanism is composed of two link arms 54a, 54b. Link arm 54a has its left end rotatably supported on base 51 by fulcrum 55a, and link arm 54b has its left end rotatably supported on mounting base 61 by fulcrum 55b. Link arms 54a, 54b cross in the center and are rotatably connected at fulcrum 55c.

[0042] The right end of the link arm 54a is supported by a roller 57a so as to be freely movable along the mounting base 61, and the right end of the link arm 54b is supported by a roller 57b so as to be freely movable on the base 51.

[0043] A piston cylinder mechanism is provided as a drive mechanism for the lifting mechanism 54, and the lower end of a water hydraulic cylinder 56 is rotatably connected to a link arm 54b by a fulcrum 59a, and the tip of a piston rod 60 connected to a piston 58 provided so as to be able to slide within the water hydraulic cylinder 56 is rotatably connected to the link arm 54a by the fulcrum 59b.

[0044] A control mechanism storage section 66 is disposed in the management passage 20 below the internal space of the monitor passage 14 in which the fire hydrant storage box 30 is disposed. The control mechanism storage section 66 is provided with a water discharge control mechanism equipped with valves for supplying fire water to the hose 46 in the hose storage section 40 and discharging the water, and a lifting control mechanism equipped with valves for driving the lifting mechanism 54 to rise and fall.

[0045] A branch pipe 24a branching off from the main water supply pipe 24, which functions as a water pressure source, is connected to the control mechanism storage section 66, and introduces fire water supplied to the main water supply pipe 24 from the fire pump equipment.

[0046] A water supply pipe 68 from the water discharge control mechanism built into the control mechanism storage section 66 is connected via a connecting hose 62 to a flexible joint 64, which serves as a hose connection port of the hose storage section 40. The connecting hose 62 has a hose length that allows for sufficient slack for connection when the hose storage section 40 is pushed up and held in an exposed position above the lifeguard passage 14 by the lifting mechanism 54, so that even if the hose storage section 40 is lifted or lowered relative to the fixed piping, the hose storage section 40 can move without the connecting hose 62 coming loose. Furthermore, the movement of the connecting hose 62 caused by the lifting or lowering operation is absorbed by the movement of the flexible joint 64.

[0047] Furthermore, piping 70 for supplying and discharging fire-fighting water is connected from the lifting control mechanism built into the control mechanism storage section 66 to the water pressure cylinder 56 of the lifting mechanism 54 .

[0048] Here, the number of hydraulic cylinders 56 provided in the lifting mechanism 54 can be an appropriate number as required. For example, a plurality of hydraulic cylinders may be disposed at the bottom of the hose storage section 40 .

[0049] The hose storage unit 40 and the control mechanism storage unit 66 are connected by a connecting hose 62 inside the observer passage and by a water supply pipe 68 on the management passage 20 side, but the hose storage unit 40 and the control mechanism storage unit 66 may also be directly connected by a connecting hose. Even in this case, either or both of the connecting hoses to the hose storage unit 40 side and the control mechanism storage unit 66 are connected by flexible joints.

[0050] Furthermore, pilot pipes 94a, 94b extend from the control mechanism storage section 66 up to the fire hydrant storage box 30 and are connected via flexible pipes 62 to a pilot manual valve 90 provided in the hose storage section 40.

[0051] The lifting mechanism 54 is not limited to a piston cylinder lifting mechanism using the hydraulic cylinder 56, but may be a lifting mechanism using a pantograph mechanism or a lifting mechanism using a screw shaft.

[0052] (Water discharge control mechanism) Fig. 6 is an explanatory diagram showing a water discharge control system of a fire hydrant facility. As shown in Fig. 6, in the water discharge control system, piping is connected from a fire pump facility 75 to the primary side of a fire hydrant valve 76 that functions as a simultaneous opening valve. The fire hydrant valve 76 is equipped with a cylinder piston mechanism as an opening / closing drive unit that opens and closes the valve body, and is structured such that the supply of pilot pressure to the cylinder chamber operates the piston to move the valve body to an open position, and the release of the pilot pressure returns the piston to its initial position by a return spring, moving the valve body to a closed position.

[0053] A pilot manual valve 90 is provided separately from the fire hydrant valve 76 on the hose storage section 40 side, and the pilot manual valve 90 uses a small opening / closing valve that can be switched between an open position and a closed position by the fire hydrant valve opening / closing lever 45.

[0054] A pilot pipe 94a branched off from the primary side of the fire hydrant valve 76 is connected to the inlet port of the pilot manual valve 90, and a pilot pipe 94b connected to the outlet port of the pilot manual valve 90 is connected to the cylinder port of the fire hydrant valve 76.

[0055] In this embodiment, the control mechanism storage section 66 is also provided with a pilot manual valve 92 operated by the fire hydrant valve opening / closing lever 45a, making it possible to operate the fire hydrant on the management passage 20 side.

[0056] A pump start interlocking switch 96 using a pressure switch is provided in the pilot piping 94b, and is switched on by the fire water supplied when the pilot manual valve 90 is opened, and sends a pump start signal to a disaster prevention monitoring panel installed in a monitoring center or the like to start the fire pump equipment 75. Furthermore, an automatic drain valve 86 that functions as an atmospheric release valve is connected to the pilot piping 94b.

[0057] An automatic pressure regulating valve 78 and a mixer 80 are connected to the fire hydrant valve 76, and a foam tank 82 that stores foam concentrate is connected to the mixer 80. The secondary load of the mixer 80 is connected from a maintenance valve 84 to a hose storage unit 40 via a water supply pipe 68, and is connected to a hose 46 via a maintenance valve 85 provided in the hose storage unit 40.

[0058] Here, in this embodiment, a maintenance valve 85 is also provided in the control mechanism storage section 66 to enable a water discharge test during inspection by connecting a maintenance hose 83, but the maintenance valve 84 may be omitted and only the maintenance valve 85 in the hose storage section 40 may be provided.

[0059] An automatic drain valve 88 that functions as an atmospheric release valve is provided on the secondary side of the automatic pressure regulating valve 78, making it possible to drain water from the secondary piping when the fire hydrant valve 76 is closed.

[0060] (Fire hydrant valve operation) The fire hydrant valve 76 is opened and closed by the fire hydrant valve opening / closing lever 45 of the pilot manual valve provided in the hose storage section 40 as follows: Under normal circumstances, the fire hydrant valve opening / closing lever 45 is in the water discharge stop position, the pilot manual valve 90 is closed, the cylinder chamber of the fire hydrant valve 76 is connected to the drain side (the side open to the atmosphere) by the automatic drain valve 86, the cylinder chamber is in an unpressurized state, and the piston is in the closed position with the valve body closed by the spring.

[0061] When the fire hydrant valve opening / closing lever 45 is operated to the water discharge position, the pilot manual valve 90 is opened, and fire water is supplied to the cylinder chamber of the fire hydrant valve 76 via the start-up pilot piping 94b. When pilot pressure is applied to the cylinder chamber, the piston strokes against the spring, the valve body opens, fire water is supplied to the secondary side, and water discharge from the nozzle 48 of the pulled-out hose 46 begins.

[0062] To stop discharging water, the fire hydrant valve opening / closing lever 45 is returned from the water discharge position to the water discharge stop position, which closes the pilot manual valve 90 and stops the supply of fire water to the cylinder chamber of the fire hydrant valve 76. As a result, the pressure in the cylinder chamber communicates with the drain side via the automatic drain valve 86, reducing the pressure on the secondary side, causing the piston to move the valve body to the closing side, which reduces the pressure on the secondary side and stops discharging water from the nozzle.

[0063] [First embodiment of nozzle locking structure] FIG. 7 is an explanatory diagram showing a first embodiment of the nozzle locking structure, and FIG. 8 is an explanatory diagram showing a state in which the nozzle is held in the hose housing portion by the nozzle holder of FIG.

[0064] (Hose storage partition) 7, the housing 41 of the hose storage section 40 is open at the front and rear. At the front opening, a front hose outlet 44a is formed between two frame pipes 42a arranged in the horizontal direction, and at the rear opening, a rear hose outlet 44b is formed between frame pipes 42b arranged in the horizontal direction.

[0065] In addition, partition plates 47a, 47b are arranged at an angle on the inside of the upper and lower parts of the front hose outlet 44a and the rear hose outlet 44b formed at the front and rear of the housing 41 so as to open toward the hollow portion of the hose 46, which is wound inwardly in a vertical direction.

[0066] Therefore, when storing the hose 46 in an inwardly wound state within the housing 41, the hose 46 can be wound around the partition plates 47a, 47b arranged above and below within the housing 41, allowing anyone to wind the hose 46 inward, for example, in four rows and four stages, as shown in the figure.

[0067] Furthermore, since the hose 46 is wound around the partition plates 47a, 47b arranged above and below within the housing 41, resistance is reduced when pulling out the hose 46 from the front hose outlet 44a or the rear hose outlet 44b compared to when the partition plates 47a, 47b are arranged vertically, and the force required to pull out the hose 46 can be reduced.

[0068] (Nozzle holder) In this embodiment, when the hose 46 is wound vertically inward inside the housing 41, for example, the portion adjacent to the front hose outlet 44a on the fourth tier on the lower side of the housing 41 is left as the remaining hose wound portion, and the nozzle 48 is detachably attached to this remaining hose wound portion by the hose holder 50 on the portion of the hose 46 on the third tier.

[0069] As shown in Fig. 8(A), the nozzle holder 50 has a pair of holder arms 52 fixed by welding or the like to both sides of the nozzle body 48a of the nozzle 48. The holder arms 52 are made of aluminum, for example, and as shown in Fig. 8(B), the nozzle fixing portion 52a at one end of the pair of holder arms 52 curved into a ring is fixed to the nozzle body 48a by welding or the like, and the pair of holder arms 52 are formed at their tip sides with a ring-shaped hose locking portion 52b that is open at the tip and has an inner diameter corresponding to the outer diameter of the hose 46.

[0070] By fixing the nozzle holder 50 to the nozzle 48 in this manner, the hose locking portions 52b formed on a pair of holder arms 52 fixed to both sides of the nozzle body 48a are fitted into the remaining wound portion of the hose 46 wound inward inside the housing 41 of the hose storage section 40, so that the nozzle 48 is detachably locked by the nozzle holder 50 in the lower hollow portion of the hose 46 wound inward inside the housing 41 with the grip 48b facing upward.

[0071] In addition, since the nozzle 48 is held in place by the nozzle holder 50 with the grip 48b facing upward, when the hose storage section 40 is raised to an exposed position above the monitor passage 14, as shown in Figures 3 and 4, the user can see the grip 48b of the nozzle 48 stored in the housing 41 from both the front hose outlet 44a and the rear hose outlet 44b, and can simply and easily grasp the grip 48b to remove the nozzle 48.

[0072] Furthermore, when removing the nozzle 48 and pulling out the hose 46 to spray water, as shown in FIG. 8, the user will grasp the grip 48b to operate the nozzle 48. In this case, if the nozzle holder 50 protruding above the nozzle body 48a holds the grip 48b, it is possible to use it as an auxiliary means, such as supporting the nozzle holder 50 with the other hand, making it easier to operate the nozzle 48 when spraying water.

[0073] In addition, a hinge may be provided near the center of the nozzle holder 50 fixed to the nozzle 48, so that the nozzle holder 50 can be folded up so that it does not protrude from the nozzle 48 when the nozzle 48 is removed from the hose 46.

[0074] 7, the nozzle 48 is detachably attached by the nozzle holder 50 to a portion of the hose that is left unwound below the hose 46 that is wound inwardly inside the housing 41, but this is not limited to this. For example, the nozzle 48 may be detachably attached by the nozzle holder 50 to a hose portion on the inside of the side surface that is in the vertical direction of the hose 46 that is wound inwardly inside the housing 41, or may be detachably attached to any other hose portion.

[0075] (Inclined positioning of display board) 7, a first display plate 98a displaying an operation method is disposed on the front side of a partition plate 47a disposed on the upper front side of the housing 41 in the hose storage section 40, and a second display plate 98a displaying an operation method is disposed on the front side (the rear side of the housing 41) of a partition plate 47b disposed on the upper rear side of the housing 41. The first display plate 98a and the second display plate 98b display the operation method on three separate plates, as shown in FIGS.

[0076] Here, the first display board 98a disposed in front of the housing 41 is disposed vertically since it is viewed by a user operating from the road side. In contrast, the second display board 98b disposed in the rear of the housing 41 is disposed at an angle so that the display surface of the second display board 98b faces diagonally upward since it is viewed by a user operating from the monitor passage 14 side.

[0077] As a result, when a user stands in the monitor passage 14, removes the nozzle 48 from the rear hose outlet 44b behind the housing 41 of the hose storage section 40 raised above the monitor passage, and pulls out the hose 46 to perform firefighting work, the second display panel 98b is provided above the rear hose outlet 44b and inclined diagonally upward, improving visibility when viewed from diagonally above, which is the user's viewpoint 99, and enabling quick and reliable operation from the monitor passage side.

[0078] [Second embodiment of nozzle locking structure] FIG. 9 is an explanatory diagram showing a second embodiment of the nozzle locking structure, FIG. 10 is an explanatory diagram showing the front and cross section of the nozzle holder, and FIG. 11 is an explanatory diagram showing the front and side of the nozzle locked to the nozzle holder supported by the hose.

[0079] As shown in FIG. 9, the housing 41 of the hose storage section 40 has the same configuration as that shown in FIG.

[0080] As shown in FIG. 10, the nozzle holder 150 has a ring-shaped hose locking portion 150b formed at one end of the connecting portion 150a, which opens toward the tip side and has an inner diameter D1 corresponding to the outer diameter of the hose 46, and a ring-shaped nozzle locking portion 150c formed at the other end of the connecting portion 150a, which opens toward the tip side and has an inner diameter D2 corresponding to the outer diameter of the body of the nozzle 48. The nozzle holder 150 is made, for example, by injection molding of a synthetic resin.

[0081] Furthermore, the nozzle holder 150 has a weaker locking strength of the hose locking portion 150b than that of the nozzle locking portion 150c so that the hose locking portion 150b is released first from the hose side when the nozzle is removed. This is realized, for example, by making the clearance ΔD1 between the inner diameter D1 of the hose locking portion 150b and the outer diameter of the hose larger than the clearance ΔD2 between the outer diameter D2 of the nozzle locking portion 150c and the body of the nozzle 48.

[0082] 9 and 11, the nozzle holder 150 has the hose locking part 150b fitted into the central hose part among the multiple hose parts lined up horizontally above the inner hollow part of the hose 46 inwardly wound inside the housing 41, and is thereby suspended in the inner hollow part of the inwardly wound hose 46. When the hose locking part 150b of the nozzle holder 150 is fitted into the central hose part, it is supported in a state where it is sandwiched by the hose parts located on both sides.

[0083] As shown in FIG. 11(A), nozzle body 48a of nozzle 48 is fitted into nozzle locking portion 150c located on the underside of nozzle holder 150, which is hung from the hose portion of the inner hollow portion of the inwardly coiled hose 46, and nozzle 48 is detachably locked to nozzle holder 150.

[0084] Since the nozzle 48 is thus engaged with the nozzle holder 150 suspended within the inner hollow portion of the inwardly coiled hose 46, the nozzle 48 can be simply and easily removed from either the front hose outlet 44a of the housing 41, which faces the road, or the left side, as shown in the figure, or the rear hose outlet 44a on the back of the housing 41, which faces the monitor passage, or the right side, as shown in the figure.

[0085] The nozzle 48 may be held by the nozzle holder 150 in an upright position by fitting the hose holding portion 50b into the hose portion aligned on the lower side of the inner hollow portion of the inwardly coiled hose 46.

[0086] In the embodiment, the locking strength of the hose locking portion 150b is made weaker than the locking strength of the nozzle locking portion 150c so that the hose locking portion 150b of the nozzle holder 150 is released first from the hose 46 side when the nozzle 48 is removed, so that the play interval of the locking of the hose locking portion 150b to the hose 46 side is made larger than the play interval of the locking of the nozzle locking portion 150c to the nozzle 48, but this is not limited thereto. For example, the hose locking portion 150b of the nozzle holder 150 may be formed of a predetermined material having low rigidity, and the nozzle locking portion 150c may be formed of another material having higher rigidity than the hose locking portion 150c.

[0087] [Nozzle fixed in place by magnetic attraction] Figure 12 is an explanatory diagram showing an embodiment of a nozzle locking structure in which the pipe frame of the hose storage section has a magnetic attraction function, where Figure 12(A) shows the state in which the magnetic attraction of the nozzle is released, and Figure 12(B) shows the state in which the nozzle is magnetically attracted.

[0088] As shown in FIG. 12, in this embodiment, in addition to the two frame pipes 42a that separate the front hose outlet 44a of the hose storage section 40, a magnetic frame pipe 72 with a bar magnet 74 disposed in the center is arranged close to the upper frame pipe 42a.

[0089] As shown in Figure 12(A), when the nozzle 48 is locked by the nozzle holder 150 in the inner hollow portion of the inwardly coiled hose 46, if left as is, there is a possibility that the nozzle 48 will move in response to the movement that accompanies the elevation and lowering of the hose storage part 40. Therefore, as shown in Figure 12(B), the nozzle holder 150 and the nozzle 48 are rotated, for example, to the left, which is the front, and, for example, the grip 48b of the nozzle 48 is attracted and fixed to the magnetic frame pipe 72 on which the bar magnet 74 is provided.

[0090] Incidentally, instead of the magnetic frame pipe 72 with the bar magnet 74 arranged in the center, a ring magnet may be fitted into the two frame pipes 42a that separate the front hose outlet 44a, the ring magnet may be made movable to any position on the frame pipe 42a, and the grip 48b of the nozzle 48 may be attracted and fixed to the ring magnet to hold it in place. Also, the grip 48b of the nozzle 48 and other parts that are to be attracted to a magnet may be made of a magnetically attractable material or a member may be arranged thereon.

[0091] [Fire hydrant device with fire hydrant door] FIG. 13 is an explanatory diagram showing nozzle locking by a nozzle holder in a fire hydrant device equipped with a fire hydrant door, as viewed from the front with the fire hydrant door and maintenance door removed.

[0092] As shown in FIG. 13, the fire hydrant device 100 of this embodiment is embedded in the tunnel wall next to the guard passage inside the tunnel, and a fire hydrant door 103 that can be opened and closed in a downward direction is provided below an opening 102 on the right side of the housing, as shown by an imaginary line, and a maintenance door 105 that can be opened and closed in an upward direction is provided on the upper side.

[0093] The inside of the opening 102 is divided into a hose storage section 104 and a valve storage section 106. The valve storage section 106 is provided with an operating lever 114 for opening and closing a water supply valve 112 and a fire hydrant valve.

[0094] An opening 116 on the left side of the housing is provided with a reporting device door 118 and a fire extinguisher door 126. The reporting device door 118 is provided with a red indicator light 120, a transmitter 122, and a response lamp 124. The fire extinguisher door 126 can be opened and closed to the left, and two fire extinguishers are stored inside.

[0095] A bucket frame 108 having frame pipes arranged lengthwise and widthwise is provided in the hose storage section 104, and a hose outlet 110 is formed at a position approximately in the center of the opening 102. The hose 46 having a nozzle 48 attached to its tip is stored inside the bucket frame 108, coiled inward.

[0096] The nozzle 48 is taken out from the hose outlet 110 to the outside, and the nozzle holder 150 is fitted into the hose portion stored inside the hose outlet 110 from the front side to support it horizontally, and the nozzle 48 taken out from the hose outlet 110 is detachably attached to the tip side of the nozzle holder 150 with the nozzle facing downward.

[0097] In this way, the nozzle holder 150 is fitted into and supported on the hose portion facing the outside of the inwardly wound hose 46, and there is no need to fasten the nozzle holder to the frame pipe that constitutes the bucket frame 108 to lock the nozzle 48, as in the conventional case, and the nozzle locking structure can be simplified.

[0098] Furthermore, the portion of the hose into which the nozzle holder 150 is fitted can be changed as necessary, and the position at which the nozzle 48 is engaged can be easily changed to an optimal desired position.

[0099] Furthermore, by fitting a ring magnet into the frame pipe close to the hose portion into which the nozzle holder 150 is fitted, the nozzle 48 engaged with the nozzle holder 150 can be attracted and fixed so as not to move.

[0100] [Modifications of the present invention] (Fire hydrant facilities) The configurations and arrangements of the hoses, valves such as fire hydrant valves, and reporting devices of the fire hydrant equipment shown in the above embodiment, as well as other configurations, are arbitrary and any appropriate configuration may be adopted.

[0101] (others) Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited to the numerical values ​​shown in the above embodiment. [Explanation of symbols]

[0102] 10: Tunnel 12: Tunnel wall 14: Guard passage 15: Road 16: Fire hydrant equipment 18: Floor slab 20: Management passage 22: Duct 24: Water main 24a: Branch piping 30: Fire hydrant storage box 32,41: Housing 34: Opening 36: Inspection door 38: Toride 37: Fire hydrant entrance 40: Hose storage section 42a, 42b: Frame pipe 43: Road board 44a: Front hose outlet 44b: Rear hose outlet 45, 45a: Fire hydrant valve opening and closing lever 46: Hose 48: Nozzle 48a: Nozzle body 48b: Grip 50,150: Nozzle holder 52: Holder arm 52a: Nozzle fixing part 52b, 150b: Hose retaining part 54: Lifting mechanism 56: Hydraulic cylinder 62: Connecting hose 64: Flexible joint 66: Control mechanism storage section 72: Magnetic frame pipe 74: Bar magnet 76: Fire hydrant valve 78: Automatic pressure regulating valve 80: Mixer 82: Foam tank 84, 85: Maintenance valve 86,88: Automatic drain valve 90,92: Pilot manual valve 94a, 94b: Pilot piping 96: Pump start interlock switch 98a: 1st display board 98b:Second display board 100: Fire hydrant equipment 103: Fire hydrant door 110: Hose outlet 150a: Connection part 150c: Nozzle locking part

Claims

1. A fire hydrant device that is located on the road surface of a guard passageway that is provided along the tunnel wall when in use, and has a hose storage section that stores a hose with a nozzle attached to the tip so that it can be freely pulled out, A switching mechanism for switching between supplying water to the hose and stopping the water supply; A housing having a hose outlet opening on the front and rear sides of the hose storage unit, the front and rear sides being the tunnel wall side and the road side; an operation unit that is disposed on a side of the hose storage unit in the direction of travel of the monitor passage and the road, and that can perform a switching operation of the switching mechanism from outside the front and rear sides of the housing; A fire hydrant device comprising:

2. The fire hydrant device according to claim 1, A fire hydrant device characterized in that a nozzle operation display board is provided within the casing, the display board being positioned so as to be visible from the monitor's passageway side and the road side when in use, and on which instructions for operating the nozzle are displayed.

3. The fire hydrant device according to claim 1, A fire hydrant device characterized in that an opening / closing lever operation display board is provided within the housing, the opening / closing lever operation display board being positioned so as to be visible from the monitor's passageway side and the road side when in use, and on which operating instructions for the fire hydrant valve opening / closing lever, which is the operating part, are displayed.

4. A fire hydrant system including a monitor passage provided along a road in a tunnel and a fire hydrant embedded part formed in the monitor passage, A fire hydrant system, comprising: a fire hydrant device according to any one of claims 1 to 3, which is embedded in the fire hydrant embedding portion so as to be movable up and down.

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