Fire hydrant apparatus and fire hydrant facility

Abstract

To simply and easily draw out a hose from a hose storage part.SOLUTION: The hose storage unit 40 includes a casing 41 in which a hose outlet 44 is opened on the front and rear sides that are the tunnel wall surface 12 side and the road 15 side, and a hydrant valve opening / closing lever 45 that is arranged on the side that is the traveling direction of the watchman passage 14 and the road 15 and can be operated from the outside on the front and rear sides of the casing. A nozzle operation display plate 49 positioned so as to be visible from the side of the watchman passage 14 and the side of the road 15 at the time of use and describing the operation of the nozzle 48 and an opening / closing lever operation display plate 53 describing the operation of the fire hydrant valve opening / closing lever are provided.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 to a fire hydrant facility in which the fire hydrant device is installed. [Background technology]

[0002] Conventionally, fire hydrant devices have been installed as emergency tunnel equipment inside tunnels on expressways, motorways, and other roads. In a fire hydrant device, a hose with a nozzle attached to the tip and valves are stored in a fire hydrant storage section of a housing with a fire hydrant door that can be opened or closed, and two fire extinguishers, for example, are stored in a fire extinguisher storage section that has a fire extinguisher door that can be opened or closed.

[0003] These fire hydrants are installed at intervals of, for example, 50 meters along the side walls facing the guard passages installed inside the tunnel. The guard passages are side wall passages that are about 1 meter higher than the road surface, allowing the guards to inspect various equipment, including the fire hydrants, installed inside the tunnel 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 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] Japanese Patent Application Laid-Open No. 2008-055024 [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-285126 [Patent Document 3] Japanese Patent Application Publication No. 05-123411 [Patent Document 4] Japanese Patent Application Laid-Open No. 2016-198169 [Patent Document 5] Japanese Patent Application Laid-Open No. 2011-015949 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's passage. Therefore, 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's passage, open the hydrant door, and pull out the hose to perform firefighting operations.However, because the fire hydrant device was installed at a high position away from the road surface, some users could not reach it and had to climb up into the guard's passage to operate it.In addition, some guard's passages were equipped with handrails, which could get in the way of firefighting operations and make it difficult to use.

[0007] To solve this problem, the applicant 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 a lift-up type fire hydrant, a hose storage unit containing a hose with a nozzle is arranged in the guard passage by a lifting mechanism so that it can be raised and lowered freely. In the event of a vehicle accident involving a fire in a tunnel, by performing a predetermined operation, the lifting mechanism operates to raise and lock the hose storage unit to an exposed position above the guard passage, 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 having to open the hydrant door.

[0008] In this type of elevating fire hydrant equipment, when the hose storage unit is raised and locked to an exposed position above the guard's passage by the 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's passage side and pulling out the hose.However, the nozzle needs to be locked in the hose storage unit so that it can be removed from both the hose outlets on the road side and the guard's passage side, and this issue remains a problem to be solved.

[0009] Furthermore, even in conventional fire hydrant devices in which the hydrant door is opened to remove the nozzle, the nozzle is detachably attached by a nozzle holder fixed to a frame pipe or the like provided in the hose storage section, and 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 simply and easily pulled out 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 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 example, a valve such as a fire hydrant valve or an electric valve) that switches between supplying water to the hose and stopping the water supply; An operating unit (for example, a fire hydrant valve opening / closing lever or a water discharge / water discharge stop switch that opens and closes an electric valve) that can switch the switching mechanism and is located on the side of the hose storage area in the direction of the guard passage and the road. The present invention is characterized by the following.

[0012] (Nozzle operation display panel) It is located in the hose storage area so that it can be seen from the guard passage and the road side when in use, and is equipped with an operation display board that displays instructions for operating the nozzle.

[0013] (Operation display panel on the operation section) It is located in the hose storage area so that it can be seen from the guard passage and the road side when in use, and is equipped with an operation display board that displays instructions for operating the operating section.

[0014] (Fire hydrant facilities) The present invention also provides a fire hydrant system including a watchman passage provided along a road in a tunnel, the fire hydrant system including a fire hydrant embedded portion formed in the watchman passage, The above-mentioned fire hydrant device is characterized in that it is embedded in a fire hydrant embedded portion so that it can be raised and lowered freely. [Effects 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; when the hydrant device is installed, the hose is stored in an inwardly wound state in the hose storage section, stacked from the outer periphery to the inner periphery so that it is perpendicular to the installation surface; the hose storage section has an inclined structure in which the width in the direction of the inward winding axis increases from the outer periphery to the inner periphery; specifically, a hose outlet that allows the stored hose to be freely pulled out to the outside is formed on a predetermined side of the hose storage section; 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 top or bottom of the hose storage section toward the hose outlet, and the hose is inwardly wound in a perpendicular direction between the partition member that opens outward from the top of the hose storage section toward the hose outlet and the partition member that opens outward from the bottom of the hose storage section toward the hose outlet; and this reduces frictional resistance when the hose is pulled out, allowing the hose to be pulled out with less force.

[0016] Furthermore, when firefighting work is completed and the hose is to be 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, and as the partition member limits the number of turns and layers, anyone can rewind the hose to the specified number of turns and layers, ensuring a stable inward wound state of the hose and enabling the hose to be pulled out smoothly. [Brief explanation of the drawings]

[0017] [Figure 1] An explanatory diagram showing emergency tunnel equipment, including fire hydrant equipment installed inside a shield tunnel [Figure 2] An explanatory diagram showing the fire hydrant storage box that stores the hose from the front, top, and side [Figure 3]An explanatory diagram showing the fire hydrant storage box from the front and side with the hose storage section raised and exposed above the guard walkway. [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 walkway. [Figure 5] An explanatory diagram showing the internal structure as seen from the road side, with the hose storage section raised by the lifting mechanism and exposed above the guard passage. [Figure 6] An explanatory 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] An explanatory diagram showing the state in which the nozzle is held in the hose storage section by the nozzle holder of Figure 7. [Figure 9] FIG. 10 is an explanatory diagram showing a second embodiment of the nozzle locking structure. [Figure 10] An explanatory diagram showing the nozzle holder of Figure 9 taken out and shown in front and cross section. [Figure 11] An explanatory diagram showing the state in which the nozzle is engaged with the nozzle holder supported on the hose, from the front and cross section. [Figure 12] 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 INVENTION

[0018] [Outline of tunnel emergency equipment] Figure 1 is an explanatory diagram showing emergency tunnel equipment, including fire hydrant equipment, installed in a tunnel for expressways. As shown in Figure 1, the inside of a tunnel 10 constructed using the shield tunneling method is covered with cylindrical tunnel walls 12, and roads 15 are provided by being separated by deck slabs 18. In this example, road 15 has two lanes in each direction.

[0019] A guard passage 14 is provided along the tunnel wall 12 on the left side of the road 15 separated by the 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 across 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 systems 16 are installed every 50 meters along the length of the tunnel 10, and the hydrant equipment of the fire hydrant systems 16 is installed separately in a fire hydrant storage box 30 containing the hose and a control mechanism storage section 66.

[0022] The fire hydrant storage box 30 is placed in a hydrant embedded section that is hollowed out in a box shape from the road surface of the guard passage 14 to the wall 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 drawn in, and a water supply pipe that supplies fire water to the fire hydrant storage box 30 is also erected.

[0023] The hydrant storage box 30 of the hydrant equipment 16 is provided with a hose storage section that stores a hose with a nozzle and a lifting mechanism for the hose storage section. When a predetermined lifting operation is performed, the lifting mechanism raises the hose storage section to an exposed position above the watchman passage 14, making it exposed, and allowing firefighting work to be performed by pulling out the hose with a nozzle.

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

[0025] (External structure of fire hydrant storage box) As shown in Figure 2, the 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 hydrant storage box 30, there is disposed a hose storage section 40 that is raised and lowered by driving 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 plurality of bolts, and can be removed by removing the bolts.

[0027] On the front of the inspection door 36, a nameplate reading "Foam Fire Hydrant" is placed in four letters, and there are also handles 38 at two points on the top to be used when removing or installing the inspection door 36. In addition, an operation display board 39a displaying 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 top of the fire hydrant storage box 30, which forms the road surface of the monitor passage 14, and closes off 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 hydrant storage box 30, and the reporting device panel is provided with a red indicator light, a transmitter, and a response lamp (not shown). 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 hydrant storage box 30 (not shown).

[0030] (Structure of fire hydrant equipment installed in interior spaces) 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 guard 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 guard 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 the monitor passage 14. The hose storage unit 40 has a box-shaped housing 41 that is open 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 between them 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 of the housing 41, and a rear hose outlet 44b is formed between them to pull 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 state of being wound inward vertically inside the hose storage section 40. The nozzle 48 is detachably attached to the lower side of the inner hollow portion formed by the inward winding of the hose 46 by a nozzle holder with the grip facing upward.

[0034] Here, the front hose outlet 44a shown in Figure 3(A) is formed approximately in the center in the vertical direction on the front of the housing 41, while the rear hose outlet 44b shown in Figure 4 is formed in a position offset downward from the center in the vertical direction on the rear, making it easier for a user to remove the nozzle 48 engaged in the hose storage section 40 when operating 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 inside 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 the pipe that connects the water supply pipe from the control mechanism storage section 66, which is located inside the maintenance passage 20, to the hose 46. Therefore, during inspection, the hose storage section 40 can be raised and exposed above the observer passage, and 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 guard passage as shown in Figure 3(A), there are arranged a nozzle operation display board 49a, a first display board 98a with operation instructions divided into three panels, and an opening / closing lever operation display board 53a.

[0038] In addition, on the back of the hose storage section 40, which has been raised above the guard passage as shown in Figure 4, there are arranged a nozzle operation display board 49b, a second display board 98b with operation instructions divided into three panels, and an opening / closing lever operation display board 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 storage section 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 and 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 and 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 the 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 freely inside the water hydraulic cylinder 56 is rotatably connected to the link arm 54a by a fulcrum 59b.

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

[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-fighting 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 for the hose storage section 40. The connecting hose 62 is designed to have a length that allows for sufficient slack for connection when the hose storage section 40 is raised and held in an exposed position above the lifeguard passage 14 by the lifting mechanism 54, so that even when the hose storage section 40 is raised 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, a pipe 70 for supplying and discharging fire-fighting water is connected from the lifting control mechanism housed in 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 any number as needed, and for example, a plurality of hydraulic cylinders may be arranged 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 guard 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. In this case, too, the connecting hoses to the hose storage unit 40 side and the control mechanism storage unit 66 are connected by flexible joints on either or both sides.

[0050] Furthermore, pilot pipes 94a and 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) Figure 6 is an explanatory diagram showing the water discharge control system of a fire hydrant facility. As shown in Figure 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, which 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 so that the piston is actuated by supplying pilot pressure to the cylinder chamber to move the valve body to the open position, and the piston is returned to its initial position by a return spring when the pilot pressure is released, moving the valve body to the closed position.

[0053] A pilot manual valve 90 is provided separately on the hose storage section 40 side for the fire hydrant valve 76, and the pilot manual valve 90 is a small opening / closing valve that can be switched between an open position and a closed position using 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 that is operated by the fire hydrant valve opening / closing lever 45a, making it possible to operate the water discharge on the management passage 20 side.

[0056] A pump start interlocking switch 96 using a pressure switch is provided in the pilot pipe 94b, and when the pilot manual valve 90 is opened, the switch is turned on by the fire-fighting water supplied, and a pump start signal is sent to a disaster prevention monitoring panel installed in a monitoring center or the like to start the fire-fighting pump equipment 75. Furthermore, an automatic drain valve 86 that functions as an atmospheric release valve is connected to the pilot pipe 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 containing foam concentrate is connected to the mixer 80. The secondary load of the mixer 80 is connected from a maintenance valve 84 to the hose storage unit 40 via the water supply pipe 68, and is connected to the 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, making it possible to perform 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 adjustment valve 78, and enables water to be drained from the secondary piping when the fire hydrant valve 76 is closed.

[0060] (Operation of fire hydrant valves) The hydrant valve 76 is opened and closed by the hydrant valve opening / closing lever 45 of the pilot manual valve provided in the hose storage section 40 as follows: Normally, the 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 hydrant valve 76 is connected to the drain side (open to the atmosphere side) 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 water discharge, the hydrant valve open / close 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 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 in turn reduces the pressure on the secondary side and stops water discharge 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 storage section by the nozzle holder of FIG.

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

[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 part of the hose 46 wound inward vertically.

[0066] Therefore, when storing the hose 46 inside the housing 41 in an inwardly wound state, the hose 46 can be wound around the partition plates 47a and 47b arranged above and below inside the housing 41, so that anyone can 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 inside the housing 41, the resistance when pulling out the hose 46 from the front hose outlet 44a or the rear hose outlet 44b is reduced 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 third tier of the hose 46.

[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), a nozzle fixing portion 52a at one end of the pair of holder arms 52, which is curved into a ring, is fixed to the nozzle body 48a by welding or the like, and a ring-shaped hose locking portion 52b is formed on the tip side of the pair of holder arms 52, which 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, and the nozzle 48 is removably locked by the nozzle holder 50 in the hollow portion below the hose 46 wound inward inside the housing 41 with the grip 48b facing upward.

[0071] Furthermore, 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 guard 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, making it easy to grasp the grip 48b and remove the nozzle 48.

[0072] Furthermore, when removing the nozzle 48 and pulling out the hose 46 to spray water, as shown in Figure 8, the user will operate the nozzle 48 by grasping the grip 48b. In this case, if the nozzle holder 50 protruding above the nozzle body 48a holds the grip 48b, it becomes possible to use it as an auxiliary means, such as holding and 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 so that it does not protrude from the nozzle 48 when the nozzle 48 is removed from the hose 46.

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

[0075] (Inclined positioning of the display board) 7, a first display panel 98a displaying operation instructions is disposed on the front side of partition panel 47a disposed on the upper front side of housing 41 in hose storage section 40, and a second display panel 98a displaying operation instructions is disposed on the front side (back side of housing 41) of partition panel 47b disposed on the upper rear side of housing 41. Note that, as shown in FIGS. 3 and 4, the first display panel 98a and the second display panel 98b display operation instructions on three separate panels.

[0076] Here, the first display board 98a located in front of the housing 41 is positioned vertically so that it can be seen by users operating from the road side. In contrast, the second display board 98b located in the rear of the housing 41 is positioned at an angle so that the display surface of the second display board 98b faces diagonally upwards so that it can be seen by users 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 at an angle facing 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] Figure 9 is an explanatory diagram showing a second embodiment of the nozzle locking structure, Figure 10 is an explanatory diagram showing the nozzle holder in front and cross section, and Figure 11 is an explanatory diagram showing the nozzle locked to the nozzle holder supported on the hose in front and side view.

[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 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 also opens toward the tip 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 synthetic resin.

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

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

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

[0084] In this way, the nozzle 48 is engaged with the nozzle holder 150 suspended within the inner hollow portion of the inwardly coiled hose 46, so that the nozzle 48 can be simply and easily removed from either the front hose outlet 44a of the housing 41 on the road side, which is the left side in the illustration, or the rear hose outlet 44a on the back of the housing 41 on the guard passage side, which is the right side in the illustration.

[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 below the inner hollow portion of the inwardly wound hose 46.

[0086] Furthermore, in the embodiment, the locking strength of hose locking portion 150b is set weaker than the locking strength of nozzle locking portion 150c so that hose locking portion 150b of nozzle holder 150 is released first from the hose 46 side when removing nozzle 48, and therefore the clearance between hose locking portion 150b and the hose 46 side is set larger than the clearance between nozzle locking portion 150c and the nozzle 48, but this is not limiting. For example, hose locking portion 150b of nozzle holder 150 may be formed from a predetermined material with low rigidity, and nozzle locking portion 150c may be formed from another material with higher rigidity than hose locking portion 150c.

[0087] [Nozzle fixed and locked 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. 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 located 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, there is a possibility that the nozzle 48 will move in response to the movement of the hose storage unit 40 as it moves up and down. Therefore, as shown in Figure 12(B), the nozzle holder 150 and the nozzle 48 are rotated, for example, to the left (front), and 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] Instead of using a magnetic frame pipe 72 with a bar magnet 74 located in the center, ring magnets may be fitted into the two frame pipes 42a that separate the front hose outlet 44a, and the ring magnets may be movable to any position on the frame pipe 42a, with the grip 48b of the nozzle 48 being 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 attracted to a magnet may be made of a magnetically attractable material or have a member disposed thereon.

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

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

[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 in which frame pipes are 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. A hose 46 with a nozzle 48 attached to the tip thereof 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 a nozzle holder 150 is fitted from the front side into the hose portion stored inside the hose outlet 110 to support it horizontally, and the nozzle 48 taken out from the hose outlet 110 is detachably fastened to the tip end of the nozzle holder 150 with the nozzle facing downward.

[0097] In this way, the nozzle holder 150 is fitted into and supported by the hose portion facing outward of the inwardly wound hose 46, eliminating the need to fasten the nozzle holder to the frame pipe that constitutes the bucket frame 108 to lock the nozzle 48, as was conventional, and allowing for a simple nozzle locking structure.

[0098] Furthermore, the hose portion into which the nozzle holder 150 is fitted can be changed as needed, and the position at which the nozzle 48 is fastened can be easily changed to the optimum 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 hydrant valves, and reporting devices of the fire hydrant equipment shown in the above embodiments, as well as other configurations, are arbitrary, and any appropriate configurations may be adopted.

[0101] (others) The present invention also includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited to the numerical values ​​shown in the above embodiments. [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 / 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 that 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; an operating unit that is arranged on the side of the hose storage unit in the direction of travel of the guard passage and the road, and that is capable of switching the switching mechanism; an operation display panel that is located in the hose storage section so as to be visible from the guard passage side and the road side when in use, and that displays an operation method for the nozzle and / or the operation section; A fire hydrant device comprising:

2. A fire hydrant system including a watchman passage provided along a road in a tunnel and a fire hydrant embedded part formed in the watchman passage, A fire hydrant facility, wherein the fire hydrant device according to claim 1 is embedded and installed in the embedded fire hydrant portion so as to be able to rise and fall freely.

Images