JP2023162347A - Fire hydrant device and fire hydrant equipment - Google Patents

Abstract

To simply and easily draw a hose from a hose storage part.SOLUTION: A fire hydrant device comprises a hose storage part 40 which stores a hose 46 for fire extinction in a such a manner that the hose can be freely drawn therefrom. The hose 46 is stored in such an internally-wound state that the hose is laminated from an outer peripheral side to an inner peripheral side in the hose storage part 40 so as to be vertically wound with respect to an installation surface in the installation state of the fire hydrant device. The hose storage part 40 is formed with a hose take-out port 44a on a front surface and a rear hose take-out port 44b on a rear surface, and includes an inclined structure in which a width in a direction of a take-up shaft of internal winding expands from the outer peripheral side to the inner peripheral side, and partition plates 47a, 47b are arranged in an inclined manner so as to be open outward to the front hose take-out port 44a or rear hose take-out port 44b from an upper part or lower part in the hose storage part 40.SELECTED DRAWING: Figure 7

Description

TECHNICAL FIELD The present invention relates to a fire hydrant device in which a hose is housed in a hose storage section so that a hose can be drawn out freely, and a fire hydrant facility in which the fire hydrant device is installed.

Conventionally, fire hydrant devices have been installed as tunnel emergency equipment in tunnels such as expressways and motorways.The fire hydrant device has a fire hydrant storage compartment in a housing with an openable fire hydrant door, and a nozzle at the tip. For example, two fire extinguishers are stored in the fire extinguisher storage section that is equipped with a fire extinguisher door that can be opened and closed.

Such fire hydrant devices are installed, for example, at intervals of 50 meters along the side wall facing the lifeguard passage provided in the tunnel. The observer passageway is a side wall passageway raised about 1 meter above the road surface, and is designed to safely inspect various equipment, including fire hydrant systems, installed inside the tunnel without interfering with vehicle traffic inside the tunnel. It is possible.

In the event of a vehicle accident involving a fire, the user of the accident vehicle, such as the driver of the accident vehicle, must open the fire hydrant door of the fire hydrant system, pull out the hose with the nozzle, and operate the fire hydrant valve opening/closing lever. Fire extinguishing work can be carried out by activating the system and spraying water.

Japanese Patent Application Publication No. 2008-055024 JP2009-285126A Japanese Patent Application Publication No. 05-123411

However, with conventional fire hydrant systems installed inside tunnels, they were installed along the tunnel side wall facing the lifeguard passage, so in the event of a fire caused by a vehicle accident, users could easily see the lifeguard from the road. It is necessary to reach into the fire hydrant system installed on the side wall of the tunnel beyond the passageway, open the fire hydrant door, and pull out the hose to extinguish the fire, as the fire hydrant system is installed at a high location away from the road surface. Some people may have to go up to the lifeguard passageway to operate the equipment without being able to reach it, and some lifeguard passageways have handrails, which can get in the way of fire extinguishing work and be difficult to use. There was a case.

In order to solve this problem, the applicant of the present application has proposed an elevating type fire hydrant equipment that can be simply and easily handled from the road side and the lifeguard passage side. Elevating type fire hydrant equipment has a hose storage compartment containing a hose with a nozzle that can be raised and lowered by an elevating mechanism within the lifeguard passageway. When this is done, the elevating mechanism is activated and the hose storage section is raised to the exposed position above the lifeguard passage and locked, and the hose storage area exposed on the lifeguard passageway is removed without the need to open the fire hydrant door. The hose with the nozzle can be easily and easily pulled out from the hose outlet to extinguish the fire.

By the way, in such elevating type fire hydrant equipment, if the hose storage part rises and locks in an exposed position on the lifeguard passage due to the operation of the elevating mechanism, the hose storage part rises and locks at the exposed position on the lifeguard's path, the hose outlet on the road side or the lifeguard's Fire extinguishing work is done by taking out the nozzle from the hose outlet on the aisle side and pulling out the hose, but the hose storage section has a nozzle so that it can be taken out from both the hose outlet on the road side or the lifeguard aisle side. It is necessary to lock it, and this point remains as an issue to be solved.

In addition, even with conventional fire hydrant devices in which the nozzle is taken out by opening the fire hydrant door, a nozzle holder is fixedly installed on a frame pipe etc. provided in the hose storage section, and the nozzle is removably locked. There was a problem in that when the hose was removed and the hose was pulled out, the hose came into contact with a nozzle holder fixedly installed on a frame pipe or the like, causing wear and tear on the hose.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fire hydrant device and fire hydrant equipment that allow a hose to be simply and easily pulled out from a hose storage section.

(Fire hydrant device)
The present invention provides a fire hydrant device equipped with a hose storage section in which a fire extinguishing hose is housed so as to be freely drawn out.
When the fire hydrant device is installed, the hoses are stored in an inner roll that is stacked from the outer circumferential side to the inner circumferential side in the hose storage part so as to be perpendicular to the installation surface.
The hose storage section is characterized by having an inclined structure in which the width in the direction of the inner winding axis increases from the outer circumferential side to the inner circumferential side.

(Hose partition member)
A hose outlet is formed on a predetermined side of the hose storage section to allow the stored hose to be freely pulled out to the outside.
As the inclined structure of the hose storage part, the partition member is arranged to be inclined so as to open outward from the upper or lower part of the hose storage part toward the hose outlet.

(Hose outlet)
A hose outlet is formed on each of the opposing sides,
The partition member is arranged to be inclined toward each of the hose outlet ports.

(Fire hydrant equipment)
The present invention also provides a fire hydrant facility in which a lifeguard passage is provided in a tunnel along a road, and a fire hydrant embedded part is formed in the lifeguard passage,
The fire hydrant device described above is characterized in that it is installed embedded in the fire hydrant embedding part with the direction of the inner winding shaft being the depth direction corresponding to the passage width of the lifeguard passage.

(basic effect)
The present invention provides a fire hydrant device equipped with a hose storage section in which a fire extinguishing hose is housed in a freely drawable manner, in which the hose is stored in a direction perpendicular to the installation surface when the fire hydrant device is installed. The hose storage section has an inclined structure in which the width in the direction of the winding axis of the inner winding increases from the outer peripheral side to the inner peripheral side. A hose outlet is formed on a predetermined side of the hose storage section to allow the stored hose to be freely pulled out to the outside. Because the partition member is arranged at an angle so that it opens outward, the partition member opens outward from the upper part of the hose storage part toward the hose outlet, and the partition member opens outward from the lower part of the hose storage part towards the hose outlet. The hose is vertically wound inwardly between the partition members, reducing frictional resistance when pulling out the hose, making it possible to pull out the hose with a light force.

In addition, when winding the hose back into the hose storage after finishing fire extinguishing work, there is a partition member that opens outward from the top of the hose storage toward the hose outlet, and a partition that opens outward from the bottom of the hose storage toward the hose outlet. The hose is wound vertically inward between the partition members that are open at the front, and the number of turns and stages is limited by the partition member, so no matter who winds it, it is possible to unwind the hose to the specified number of turns and stages. This makes it possible to secure a stable internally wound state of the hose, and to enable smooth extraction of the hose.

Explanatory diagram showing tunnel emergency equipment including fire hydrant equipment installed inside the shield tunnel Explanatory diagram showing a fire hydrant storage box for storing hoses from the front, top and side Explanatory diagram showing the fire hydrant storage box from the front and side with the hose storage section raised and exposed above the lifeguard passage Explanatory diagram showing the fire hydrant storage box from the back with the hose storage section raised and exposed above the lifeguard passage An explanatory diagram showing a cross-section of the internal structure as seen from the road side, with the hose storage section elevated by the lifting mechanism and exposed above the lifeguard passage. Explanatory diagram showing the water discharge control system of fire hydrant equipment Explanatory diagram showing the first embodiment of the nozzle locking structure An explanatory diagram showing the state in which the nozzle is held in the hose storage section by the nozzle holder shown in Figure 7. Explanatory diagram showing a second embodiment of the nozzle locking structure Explanatory diagram showing the front and cross section of the nozzle holder in Figure 9 taken out Explanatory diagram showing the locked state of the nozzle to the nozzle holder supported on the hose in front and cross section Explanatory diagram showing an embodiment of a nozzle locking structure in which the pipe frame of the hose storage part has a magnetic adsorption function An explanatory diagram showing how the nozzle is locked 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.

[Overview of tunnel emergency equipment]
FIG. 1 is an explanatory diagram showing tunnel emergency equipment including fire hydrant equipment installed in a tunnel of a motorway. As shown in FIG. 1, the inside of a tunnel 10 constructed by the shield construction method is covered with a cylindrical tunnel wall surface 12 and partitioned by a floor slab 18 to provide a road 15. In this example, Road 15 has two lanes in each direction.

A lifeguard passageway 14 is provided along the tunnel wall surface 12 on the left side of the road 15 divided by a floor slab 18, and the interior space below the lifeguard passageway 14 is used as a duct 22, in which electrical conduits and the like are laid. .

The lower side of the floor slab 18 on which the road 15 is formed is partitioned into a plurality of sections in the tunnel lateral direction. For example, the section located below the lifeguard passage 14 is used as a management passage 20, and The management passage 20 is used as an emergency evacuation passage when a fire breaks out in the tunnel. A water supply main pipe 24 is laid in the management passage 20.

Fire hydrant equipment 16 is installed every 50 meters in the longitudinal direction of the tunnel 10, and the fire hydrant equipment of the fire hydrant equipment 16 is installed separately into a fire hydrant storage box 30 in which a hose is stored and a control mechanism storage part 66.

The fire hydrant storage box 30 is arranged in a fire hydrant embedded part hollowed out in a box shape over the road surface of the lifeguard passageway 14 and the wall surface on the road 15 side. The control mechanism storage section 66 is arranged in the management passage 20 that is below the fire hydrant storage box 30, into which a branch pipe branched from the water supply main pipe 24 is drawn, and also serves as a water supply that supplies fire extinguishing water to the fire hydrant storage box 30. Piping is being installed.

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. The hose storage section is raised and exposed, making it possible to extinguish a fire by pulling out a hose with a nozzle.

[Fire hydrant equipment]
Figure 2 is an explanatory diagram showing the fire hydrant storage box that stores the hoses from the front, top and side views, and Figure 3 is a front and side view of the fire hydrant storage box with the hose storage section raised and exposed on the lifeguard passage. The explanatory diagram shown in FIG. 4 is an explanatory diagram showing the fire hydrant storage box from the rear with the hose storage section raised and exposed on the lifeguard passage.

(External structure of fire hydrant storage box)
As shown in FIG. 2, the fire hydrant storage box 30 of the fire hydrant equipment 16 is embedded in an internal space under the floor of the lifeguard passageway 14. Inside the fire hydrant storage box 30, a hose storage section 40 is arranged which is raised and lowered by the drive of a hydraulic cylinder 56 of a lifting mechanism 54 using a pantograph mechanism.

The fire hydrant storage box 30 has an opening 34 formed on the front surface of the casing 32, and an inspection door 36 is fixed to the opening 34 with a plurality of bolts, and can be attached or detached by removing the bolts. ing.

On the front of the inspection door 36, a name plate indicating "foam fire hydrant" is arranged in four letters, and in two places at the top there are handles 38 on which the inspection door 36 can be removed or attached. is provided. Further, an operation display board 39a displaying operation instructions is arranged at the center of the inspection door 36.

A road surface plate 43 of the hose storage section 40 that is raised and lowered by a lifting mechanism 45 is located at the upper part of the road surface of the lifeguard passage 14 of the fire hydrant storage box 30 shown in FIG. ing. On this road board 43, an operation display board 39b facing the road 15 side and an operation display board 39c facing the observer passage 14 side are arranged.

Note that 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 illustration thereof is omitted. The notification device panel is also provided with a rise switch and a fall switch for raising and lowering the hose storage section provided in the fire hydrant storage box 30, but these are not shown.

(Structure of fire hydrant equipment installed in internal space)
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 lifeguard path, and Figure 4 is an explanatory diagram showing the fire hydrant storage box with the hose storage area raised and exposed above the lifeguard path. FIG. 2 is an explanatory diagram showing the fire hydrant storage box from the back in a state where the fire hydrant storage box is in a closed state.

As shown in FIGS. 3 and 4, a hose storage section 40 is disposed in a fire hydrant storage box 30 installed in the lifeguard passageway 14 so as to be movable up and down. The hose storage section 40 includes a box-shaped housing 41 with openings on the front and back sides, and two frame pipes 42a are arranged in the front opening of the housing 41, and a hose 46 is drawn out from the road 15 side between them. A front hose outlet 44a is formed. Partition plates 47a are arranged above and below the front hose outlet 44a.

Further, two frame pipes 42b are also arranged at the opening on the back side of the housing 41, and a rear hose outlet 44b is formed between them for pulling out the hose 46 from the observer passage 14 side. Partition plates 47b are arranged above and below the rear hose outlet 44b.

Inside the hose storage section 40, a hose 46 having a nozzle 48 attached to its tip is stored in a vertically wound state. A nozzle 48 is removably attached to the lower side of the inner cavity formed by the inward winding of the hose 46 by a nozzle holder with the grip facing upward.

Here, the front hose outlet 44a shown in FIG. 3(A) is formed approximately in the center of the front surface of the housing 41 in the vertical direction, whereas the rear hose outlet 44b shown in FIG. 4 is formed in the rear surface in the vertical direction. It is formed at a position offset downward from the center, so that when a user operates from the observer passageway 14 side, the nozzle 48 locked in the hose storage section 40 can be easily taken out.

A fire hydrant valve opening/closing lever 45 is provided in 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 . Separately located fire hydrant valves can be opened and closed remotely. In addition, instead of the fire hydrant valve opening/closing lever 45, a water discharge control mechanism provided in a control mechanism storage section 66 arranged in the management passage 20 is operated to open a water discharge switch to open an electric valve and to close the electric valve. A water discharge stop switch may also be provided.

Furthermore, 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 in a pipe that connects a water supply pipe from a control mechanism storage section 66 arranged in the management passage 20 to the hose 46 . Therefore, at the time of inspection, a water discharge test can be easily performed by attaching a maintenance hose (test hose) to the maintenance valve 85 with the hose storage section 40 raised and exposed above the observer's passage.

On the front surface of the hose storage section 40 elevated above the lifeguard passage shown in FIG. A display board 53a is arranged.

Further, on the back side of the hose storage section 40 raised above the lifeguard passage shown in FIG. A plate 53b is arranged.

(Lifting mechanism)
FIG. 5 is an explanatory diagram showing a cross section of the internal structure as seen from the road side in a state where the hose storage section is raised by the elevating mechanism and exposed onto the observer's passage.

As shown in FIG. 5, the hose storage section 40 is supported by an elevating mechanism 54 so as to be able to rise and fall freely, and in this embodiment, a pantograph mechanism is used as the elevating mechanism 54.

The elevating mechanism 54 using a pantograph mechanism is composed of two link arms 54a and 54b. The left end of the link arm 54a is rotatably supported on the base 51 by a fulcrum 55a, and the left end of the link arm 54b is rotatably supported on the mounting base 61 by a fulcrum 55b, so that the link arms 54a and 54b intersect at the center. and are rotatably connected at a fulcrum 55c.

Further, the right end of the link arm 54a is movably supported by a roller 57a along the mounting base 61, and the right end of the link arm 54b is movably supported by the base 51 by a roller 57b.

A piston-cylinder mechanism is provided as a drive mechanism for the lifting mechanism 54, the lower end of the hydraulic cylinder 56 is rotatably connected to the link arm 54b by a fulcrum 59a, and a piston 58 is slidably provided in the hydraulic cylinder 56. The tip of the piston rod 60 connected to the link arm 54a is rotatably connected to the link arm 54a by a fulcrum 59b.

A control mechanism storage part 66 is arranged in the management passage 20 which is the lower side of the inner space of the lifeguard passage 14 in which the fire hydrant storage box 30 is arranged. A water discharge control mechanism includes valves for supplying and discharging fire extinguishing water, and an elevation control mechanism includes valves for driving the elevation mechanism 54 up and down.

A branch pipe 24a branched from the main water supply pipe 24, which functions as a water pressure source, is connected to the control mechanism storage part 66, and introduces fire extinguishing water supplied to the main water supply pipe 24 from the fire pump equipment.

A water supply pipe 68 from a water discharge control mechanism built into the control mechanism storage section 66 is connected to a flexible joint 64 serving as a hose connection port of the hose storage section 40 via a connecting hose 62. The connection hose 62 has a hose length that has a sufficient margin for connection when the hose storage section 40 is pushed up and held at the exposed position on the lifeguard passage 14 by the lifting mechanism 54, and this allows the piping to become a fixed side. On the other hand, even if the hose storage section 40 moves up and down, the hose storage section 40 can be moved without the connecting hose 62 coming off. Further, the movement of the connecting hose 62 caused by the lifting and lowering operation is absorbed by the movement of the flexible joint 64.

Further, a pipe 70 for supplying and draining fire extinguishing water is connected to the hydraulic cylinder 56 of the elevating mechanism 54 from the elevating control mechanism built in the control mechanism housing 66 .

Here, the number of hydraulic cylinders 56 provided in the elevating mechanism 54 can be set to an appropriate number as required. For example, a plurality of hydraulic cylinders may be arranged at the bottom of the hose storage section 40.

The hose storage section 40 and the control mechanism storage section 66 are connected by a connection hose 62 in the observer passage and a water supply pipe 68 on the management passage 20 side. They may be directly connected by a connecting hose. In this case, either or both of the connection hoses are connected to the hose storage section 40 side and the control mechanism storage section 66 using a flexible joint.

Further, pilot pipes 94a and 94b are raised from the control mechanism storage part 66 to the fire hydrant storage box 30, and are connected to a pilot manual valve 90 provided in the hose storage part 40 via a flexible pipe 62.

Note that the elevating mechanism 54 is not limited to a piston cylinder elevating mechanism using the hydraulic cylinder 56, but may be an elevating mechanism using a pantograph mechanism or an elevating mechanism using a screw shaft.

(Water discharge control mechanism)
FIG. 6 is an explanatory diagram showing the water discharge control system of the fire hydrant equipment. As shown in FIG. 6, in the water discharge control system, piping is connected from a fire pump equipment 75 to the primary side of a fire hydrant valve 76 that functions as a simultaneous release 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. When pilot pressure is supplied to the cylinder chamber, the piston is actuated to move the valve body to the open position, and when the pilot pressure is removed, the valve body is returned to the open position. It has a structure that uses a spring to return the piston to its initial position and move the valve body to the closed position.

For the fire hydrant valve 76, a pilot manual valve 90 is provided which is arranged separately on the hose storage section 40 side, and the pilot manual valve 90 is 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. are using.

A pilot pipe 94a branched 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. It is connected to the.

Further, in this embodiment, a pilot manual valve 92 that is operated by the fire hydrant valve opening/closing lever 45a is also provided in the control mechanism storage section 66 to enable water discharge operation on the management passage 20 side.

The pilot pipe 94b is provided with a pump start interlock switch 96 using a pressure switch, which is switched on by the fire extinguishing water supplied when the pilot manual valve 90 is opened, and is activated on a disaster prevention monitoring panel installed in a monitoring center, etc. The fire extinguishing pump equipment 75 is started by transmitting a pump start signal. Further, an automatic drain valve 86 functioning as an atmosphere release valve is connected to the pilot pipe 94b.

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 side load of the mixer 80 is connected from a maintenance valve 84 to a hose storage section 40 via a water supply pipe 68, and is connected to a hose 46 via a maintenance valve 85 provided in the hose storage section 40.

Here, in this embodiment, a maintenance valve 85 is also provided in the control mechanism housing section 66 to enable a water discharge test at the time of inspection by connecting the maintenance hose 83, but the maintenance valve 84 is omitted and It is also possible to provide only the maintenance valve 85 of the section 40.

An automatic drain valve 88 functioning as an atmosphere release valve is provided on the secondary side of the automatic pressure regulating valve 78, and allows water to be drained from the secondary side piping when the fire hydrant valve 76 is closed.

(Operation of fire hydrant valve)
The opening/closing operation of the fire hydrant valve 76 by the fire hydrant valve opening/closing lever 45 of the pilot manual valve provided in the hose storage section 40 is as follows. Normally, the fire hydrant valve opening/closing lever 45 is in the water discharge stop position, the pilot manual valve 90 is closed, and the cylinder chamber of the fire hydrant valve 76 is communicated with the drainage side (atmosphere open side) by the automatic drain valve 86. is in an unpressurized state, and the piston is in the closed position with the valve body closed by the spring.

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 extinguishing water is supplied to the cylinder chamber of the fire hydrant valve 76 via the starting pilot piping 94b, and pilot pressure is applied to the cylinder chamber. , the piston strokes against the spring, the valve body opens, fire extinguishing water is supplied to the secondary side, and water starts to be discharged from the nozzle 48 of the hose 46 pulled out.

To stop water discharge, when the fire hydrant valve opening/closing lever 45 is returned from the water discharge position to the water discharge stop position, the pilot manual valve 90 is closed and the supply of fire extinguishing water to the cylinder chamber of the fire hydrant valve 76 is stopped. Therefore, the pressure in the cylinder chamber is communicated to the drain side via the automatic drain valve 86, and the pressure on the secondary side decreases, and the piston moves the valve body to the closing side, and the pressure on the secondary side decreases accordingly. Then, water discharging from the nozzle is stopped.

[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. 7.

(Partition plate for hose storage)
As shown in FIG. 7, the housing 41 of the hose storage section 40 is open to the front and back. A front hose outlet 44a is formed between two frame pipes 42a arranged laterally in the front opening, and a rear hose outlet 44a is formed in the rear opening between two frame pipes 42b arranged laterally. 44b is formed.

Further, the upper and lower inner sides of the front hose outlet 44a and the rear hose outlet 44b formed at the front and rear of the casing 41 are provided so as to open toward the hollow portion of the hose 46 wound inwardly. Partition plates 47a and 47b are arranged at an angle.

Therefore, when storing the hose 46 by winding it inside the housing 41, by winding the hose 46 between the partition plates 47a and 47b arranged above and below inside the housing 41, no matter who is winding it, it can be stored as shown in the figure. For example, it is possible to inwardly wind the wire in four rows and four stages.

In addition, since the hose 46 is wound around the partition plates 47a and 47b arranged vertically inside the housing 41, the front hose outlet 44a and The resistance when pulling out the hose 46 from the rear hose outlet 44b is reduced, and the force required to pull out the hose 46 can be reduced.

(nozzle holder)
In the present embodiment, when the hose 46 is wound vertically inwardly in the housing 41, for example, the portion adjacent to the front hose outlet 44a of the fourth stage on the lower side of the housing 41 is used as the remaining hose winding portion. The nozzle 48 is removably attached to the third stage hose 46 by a hose holder 50 in this uncoiled portion of the hose.

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

By fixing the nozzle holder 50 to the nozzle 48 in this way, the uncoiled portion of the hose 46 wound inside the housing 41 of the hose storage section 40 has a pair of pairs fixed on both sides of the nozzle body 48a. By fitting the hose locking part 52b formed on the holder arm 52 of the nozzle holder 50, the nozzle 48 is attached to the lower side of the hose 46 wound inwardly in the housing 41 with the grip 48b facing upward. It is removably locked in the hollow part of.

Furthermore, since the nozzle 48 is locked by the nozzle holder 50 with the grip 48b facing upward, the hose storage section 40 is placed in an exposed position on the lifeguard passage 14, as shown in FIGS. 3 and 4. When the user is lifted up, the user can see the grip 48b of the nozzle 48 housed in the housing 41 from both the front hose outlet 44a and the rear hose outlet 44b, and grips the grip 48b to remove the nozzle 48. It is easy and simple to take out the .

Furthermore, when the user takes out the nozzle 48 and pulls out the hose 46 to spray water, the user grasps the grip 48b and operates the nozzle 48, as shown in FIG. When the nozzle holder 50 protruding upward has a grip 48b, it becomes possible to use the nozzle holder 50 in an auxiliary manner such as holding and supporting the nozzle holder 50 with the other hand, making it easier to operate the nozzle 48 when discharging water. shall be.

Note that a hinge may be provided near the center of the nozzle holder 50 fixed to the nozzle 48 so that it can be folded freely so that the nozzle holder 50 does not protrude from the nozzle 48 when the nozzle 48 is removed from the hose 46.

In addition, in FIG. 7, the nozzle 48 is removably secured by a nozzle holder 50 by forming an uncoiled portion of the hose on the lower side of the hose 46 wound inside the housing 41. Not limited. For example, the nozzle 48 may be removably attached to a hose portion on the inside side of the hose 46 wound inside the housing 41 in the vertical direction using the nozzle holder 50, or may be detachably attached to any other hose portion. It may be locked to.

(Slanted arrangement of display board)
As shown in FIG. 7, a first display board 98a on which operating instructions are displayed is disposed on the front side of a partition plate 47a disposed in the upper front of the casing 41 in the hose storage section 40. A second display board 98a on which operating instructions are displayed is arranged on the front side of the partition plate 47b (on the back side of the housing 41), which is arranged at the upper rear side. Note that, as shown in FIGS. 3 and 4, the first display board 98a and the second display board 98b display operating methods in three parts.

Here, the first display board 98a disposed in front of the housing 41 is disposed vertically so that the user who operates it from the road side can see it. On the other hand, the second display board 98b disposed at the rear of the housing 41 is tilted so that the display surface of the second display board 98b faces diagonally upward, since the user who operates it from the lifeguard passageway 14 can see it. It is arranged as follows.

As a result, the user stands in the lifeguard passageway 14, takes out the nozzle 48 from the rear hose outlet 44b behind the housing 41 of the hose storage section 40 that has been raised above the lifeguard passageway, pulls out the hose 46, and performs fire extinguishing work. In this case, the second display plate 98b is provided above the rear hose outlet 44b so as to be inclined diagonally upward, so that visibility when viewed from diagonally above, which is the user's viewpoint 99, is improved. Enables quick and reliable operation from the observer passage side.

[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 taken out, and FIG. 11 is a diagram showing the nozzle locking with respect to the nozzle holder supported on the hose. It is an explanatory view showing the front and side views of the state.

As shown in FIG. 9, the casing 41 of the hose storage section 40 has the same configuration as shown in FIG. 7, and the hose 46 is wound vertically inside the casing 41.

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

In addition, the nozzle holder 150 is configured to set the locking strength of the hose locking portion 150b to be higher than the locking strength of the nozzle locking portion 150c so that the hose locking portion 150b comes off from the hose side first when the nozzle is removed. It's weakening. This is achieved, for example, by making the play distance ΔD1 between the inner diameter D1 of the hose locking portion 150b and the hose outer diameter larger than the play distance ΔD2 between the outer diameter D2 of the nozzle locking portion 150c and the body of the nozzle 48. be done.

As shown in FIGS. 9 and 11, the nozzle holder 150 is attached to a central hose portion of a plurality of hose portions arranged horizontally above the inner cavity of the hose 46 wound inside the housing 41. The hose locking portion 150b is fitted, and the hose 46 is thereby suspended in the inner cavity of the inner-wound hose 46. Moreover, when the hose locking part 150b of the nozzle holder 150 is fitted into the central hose part, it is supported in a sandwiched state by the hose parts located on both sides.

As shown in FIG. 11(A), the nozzle body of the nozzle 48 is attached to the nozzle locking part 150c located on the lower side of the nozzle holder 150 suspended from the hose part of the inner hollow part of the inwardly wound hose 46. 48a is fitted, and the nozzle 48 is removably locked to the nozzle holder 150.

Since the nozzle 48 is latched to the nozzle holder 150 suspended within the inner cavity of the inwardly wound hose 46, the front hose outlet 44a of the casing 41, which is on the road side and is on the left side in the figure, is fixed. Alternatively, the nozzle 48 can be simply and easily taken out from any of the rear hose outlet 44a on the back side of the housing 41, which is on the right side in the figure and on the observer's path side.

Note that the nozzle 48 is locked by the nozzle holder 150 by fitting the hose locking part 50b into the hose portion lined up below the inner cavity of the inwardly wound hose 46 and locking the nozzle 48 in an upright state. You may also let them do so.

Further, in the embodiment, the locking strength of the hose locking portion 150b is adjusted to the locking strength of the nozzle locking portion 150c so that when the nozzle 48 is removed, the hose locking portion 150b of the nozzle holder 150 is removed from the hose 46 side first. In order to make the locking strength weaker than the locking strength, the play interval between the hose locking part 150b and the hose 46 side is made larger than the play interval between the nozzle locking part 150c and the nozzle 48, but the present invention is not limited to this. Not done. For example, the hose locking portion 150b of the nozzle holder 150 may be formed of a predetermined material with low rigidity, and the nozzle locking portion 150c may be formed of a different material with higher rigidity than the hose locking portion 150c. .

[Fixed locking of nozzle by magnetic adsorption]
FIG. 12 is an explanatory diagram showing an embodiment of a nozzle locking structure in which the pipe frame of the hose storage part has a magnetic attraction function, and FIG. 12(A) shows a state where the magnetic attraction of the nozzle is released; 12(B) shows a state in which the nozzle is magnetically attracted.

As shown in FIG. 12, in this embodiment, in addition to the two frame pipes 42a that partition the front hose outlet 44a of the hose storage section 40, a bar magnet 74 is placed in the center adjacent to the upper frame pipe 42a. A magnetic frame pipe 72 is arranged.

As shown in FIG. 12(A), when the nozzle 48 is locked in the inner cavity of the inwardly wound hose 46 by the nozzle holder 150, the nozzle 48 will move as the hose storage section 40 moves up and down. there is a possibility. Therefore, as shown in FIG. 12(B), the nozzle holder 150 and the nozzle 48 are rotated, for example, to the left, which is the front, and the grip 48b of the nozzle 48 is attracted to the magnetic frame pipe 72 provided with the bar magnet 74. Fix it.

In addition, instead of the magnetic frame pipe 72 with the bar magnet 74 arranged in the center, a ring magnet is fitted into the two frame pipes 42a that partition the front hose outlet 44a, and the ring magnet is moved to an arbitrary position on the frame pipe 42a. The grip 48b of the nozzle 48 may be held by attracting and fixing the grip 48b of the nozzle 48 to a ring magnet. Further, a portion of the nozzle 48 to be attracted by a magnet, such as the grip 48b, is made of a material capable of being magnetically attracted or a member is arranged thereon.

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

As shown in FIG. 13, the fire hydrant device 100 of this embodiment is installed buried in the tunnel wall next to the lifeguard passage in the tunnel, as shown by the imaginary line below the opening 102 on the right side of the casing. A fire hydrant door 103 that can be opened and closed downward is provided on the upper side, and a maintenance door 105 that can be opened and closed upward is provided on the upper side.

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.

A notification device door 118 and a fire extinguisher door 126 are provided in the opening 116 on the left side of the housing. 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 on the left side, and two fire extinguishers are housed inside.

The hose storage section 104 is provided with a bucket frame 108 in which frame pipes are arranged vertically and horizontally, and a hose outlet 110 is formed at a position approximately in the center of the opening section 102. Inside the bucket frame 108, a hose 46 having a nozzle 48 attached to its tip is wound inward and housed.

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 holder 150 is placed on the tip side of the nozzle holder 150. The nozzle 48 taken out from the hose outlet 110 is turned downward and removably locked.

In this way, the nozzle holder 150 is fitted into and supported by the hose portion facing the outside of the inwardly wound hose 46, and as in the past, the nozzle holder is fixed to the frame pipe that constitutes the bucket frame 108 to hold the nozzle 48. There is no need to lock the nozzle, and the nozzle locking structure can be made simple.

Further, the hose portion into which the nozzle holder 150 is fitted can be changed as necessary, and the position where the nozzle 48 is locked can be easily changed to an optimal desired position.

Further, by fitting a ring magnet into the frame pipe near the hose portion into which the nozzle holder 150 is fitted, the nozzle 48 locked to the nozzle holder 150 can be fixed by attraction and prevented from moving.

[Modification of the present invention]
(Fire hydrant equipment)
The configuration and arrangement of the hoses of the fire hydrant equipment, the valves such as the fire hydrant valve, the notification device, and other configurations shown in the above embodiments are arbitrary, and any appropriate configuration may be adopted.

(others)
Furthermore, the present invention includes appropriate modifications without impairing its objects and advantages, and is not limited by the numerical values shown in the above embodiments.

10: Tunnel 12: Tunnel wall 14: Observer passage 15: Road 16: Fire hydrant equipment 18: Floor slab 20: Management passage 22: Duct 24: Main water supply pipe 24a: Branch pipe 30: Fire hydrant storage box 32, 41: Housing Body 34: Opening 36: Inspection door 38: Handle 37: Fire hydrant opening 40: Hose housing 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 locking part 54: Lifting mechanism 56: Hydraulic cylinder 62: Connection Hose 64: Flexible joint 66: Control mechanism housing 72: Magnetic frame pipe 74: Bar magnet 76: Fire hydrant valve 78: Automatic pressure regulating valve 80: Mixer 82: Foam tanks 84, 85: Maintenance valves 86, 88: Automatic drain valve 90, 92: Pilot manual valves 94a, 94b: Pilot piping 96: Pump start interlock switch 98a: First display board 98b: Second display board 100: Fire hydrant device 103: Fire hydrant door 110: Hose outlet 150a: Connection part 150c: Nozzle locking part

Claims (4)

A fire hydrant device comprising a hose storage section in which a fire extinguishing hose is stored in a freely drawable manner,
When the fire hydrant device is installed, the hoses are stored in the hose storage section in an inwardly wound manner that is stacked from the outer circumferential side to the inner circumferential side so as to rotate perpendicularly to the installation surface;
The fire hydrant device is characterized in that the hose storage section has an inclined structure in which the width in the direction of the winding axis of the inner winding widens from the outer circumferential side to the inner circumferential side.
In the fire hydrant device according to claim 1,
A hose outlet is formed on a predetermined side surface of the hose storage section to allow the stored hose to be freely pulled out to the outside,
A fire hydrant device characterized in that, as the inclined structure of the hose storage part, a partition member is arranged to be inclined so as to open outward from an upper or lower part of the hose storage part toward the hose outlet.
In the fire hydrant device according to claim 2,
The hose outlet is formed on each of the opposing sides,
The fire hydrant device, wherein the partition member is arranged to be inclined toward each of the hose outlets.
A fire hydrant facility, wherein a lifeguard passage is provided in a tunnel along a road, and a fire hydrant embedded part is formed in the lifeguard passage, the fire hydrant equipment comprising:
The fire hydrant device according to any one of claims 1 to 3 is embedded in the fire hydrant embedding part with the direction of the winding shaft of the inner winding being the depth direction corresponding to the passage width of the lifeguard passage. Fire hydrant equipment featuring:

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