JP7422257B2 - Fire hydrant device - Google Patents

Description

The present invention relates to a fire hydrant device that discharges water by pulling out a hose with a nozzle from the road surface side of a lifeguard passage in a tunnel.

Conventionally, fire hydrant devices installed in tunnels such as expressways and motorways have a fire hydrant housing with a fire hydrant door that can be opened and closed, and a hose with a nozzle attached to the tip and valves. For example, two fire extinguishers are stored in a fire extinguisher storage area equipped with a fire extinguisher door that can be opened and closed. Such a fire hydrant system is installed in a tunnel with a fire extinguisher door that can be opened and closed. They are placed at meter intervals. The lifeguard passageway is a wall passageway raised approximately 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. 2001-009053 Utility Model Publication No. 04-050068 Japanese Patent Application Publication No. 2009-268719 Japanese Patent Application Publication No. 2015-062515 Publication No. 45-011676 JP2009-297198A

However, with conventional fire hydrant systems installed in tunnels, they were installed along the tunnel wall facing the lifeguard passage, so in the event of a fire caused by a vehicle accident, users would be able to access the fire hydrant from the road side. It is necessary to reach into the fire hydrant system installed on the tunnel wall beyond the lifeguard passage, open the fire hydrant door, and pull out the hose to extinguish the fire. Because of this, some people may have to go up to the lifeguard passageway to operate the equipment without being able to reach them.Also, some lifeguard passageways have handrails, and the handrails may get in the way of firefighting work. There were times when it was difficult to handle.

In order to solve this problem, the fire hydrant system can be embedded in the tunnel along the lifeguard passage wall facing the road, but if a vehicle fire occurs and the vehicle stops in front of the fire hydrant door, In some cases, the stopped vehicle may be in the way, making it impossible to open the fire hydrant door and pull out the hose, or making it difficult to operate the fire hydrant system.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fire hydrant device capable of extinguishing a fire by simply and easily pulling out a hose from the road side and the lifeguard passage side.

(Fire hydrant device)
The present invention
A mounting opening is provided along the tunnel wall between the road and the tunnel wall in a tunnel that has a road, and is located below the road surface of the lifeguard passage, which has a road surface that is one step higher than the road surface, at least on the road surface side of the lifeguard passage. A fire hydrant device installed in a recessed part with an open fire hydrant, and housing equipment related to the fire hydrant device including a hose,
When the fire hydrant device is installed in the fire hydrant recessed part, a door opening located within the installation opening of the fire hydrant recessed part and provided with a fire hydrant door that can be freely opened and closed;
a hose outlet formed inside the fire hydrant device corresponding to the position of the door opening;
Equipped with
The hose outlet has a polygonal shape, and is characterized in that it is formed such that when the fire hydrant device is installed in the fire hydrant embedded part, one of the vertices is located closer to the road than the other vertices.

(Structure of fire hydrant door)
The fire hydrant door can be opened and closed by sliding in the direction along the road surface of the lifeguard passage.

(Sliding door structure)
The fire hydrant door opens by sliding from the road side toward the tunnel wall side.

(Open biasing or auxiliary structure of fire hydrant door)
Equipped with a mechanism that biases the fire hydrant door in the opening direction or a mechanism that assists in opening the fire hydrant door.

(Hydrant and pump start push button)
A hydrant storage part that is installed in a fire hydrant embedded part and stores a hydrant;
A hydrant door installed on the road side of the lifeguard passage,
Equipped with
A pump start push button to start the fire pump is stored in the hydrant storage compartment.
A pump start push button can be operated when the faucet door is open.

(Water discharge control mechanism)
A predetermined water discharge control mechanism that supplies fire extinguishing water to the hose is housed under the tunnel floor slab.

(Fire hydrant valve of water discharge control mechanism)
The water discharge control mechanism includes a fire hydrant valve that supplies fire extinguishing water to the hose when opened and stops supplying fire extinguishing water when closed.

(basic effect)
The present invention provides at least the road surface of the lifeguard passage below the road surface of the lifeguard passage, which is provided along the tunnel wall surface between the road and the tunnel wall surface in a tunnel having a road, and has a road surface that is one step higher than the road surface. A fire hydrant device is installed in a fire hydrant recessed part with an installation opening on the side, and the equipment related to the fire hydrant device including the hose is stored, and when the fire hydrant device is installed in the fire hydrant recessed part A fire hydrant door is located inside the installation opening of the fire hydrant device, and the fire hydrant door is provided with a door opening that can be freely opened and closed. It is rectangular and is formed so that when the fire hydrant device is installed in a fire hydrant embedded part, one of the vertices is located closer to the road than the other vertices, so in the event of a vehicle accident involving a fire inside the tunnel, By opening the fire hydrant door placed on the road surface of the lifeguard passageway from the road side or the lifeguard passageway side, a hose with a nozzle can be easily and easily drawn out from both the road side and the lifeguard passageway to extinguish the fire. Can be done.

In addition, the hose outlet is polygonal, and when the fire hydrant device is installed in a fire hydrant embedded part, one of the vertices is located closer to the road than the other, so it is difficult to open the fire hydrant door. This makes it possible for the hose pulled out from the door opening opened on the road surface of the lifeguard passageway to come into contact with the hose outlet and be pulled out smoothly, making it possible to reduce wear and tear on the hose due to frictional contact.

(Effects due to sliding door structure)
In addition, the fire hydrant door can be opened and closed by sliding in the direction along the road surface of the lifeguard passage, for example, from the road side toward the tunnel wall side. Even if the fire hydrant door is opened, it will not obstruct traffic through the lifeguard passage.

In addition, the door opening of the fire hydrant sliding door can be small enough to take out the nozzle supported inside, and correspondingly, the fire hydrant sliding door can also be small in size, and it can be placed on the road surface of the lifeguard passage. You can easily open and close it by sliding it even if it is closed.

(Effect of water discharge control mechanism)
In addition, since the water discharge control mechanism that controls the supply of fire extinguishing water to the hose is housed under the tunnel floor slab, there is no need to install a water discharge control mechanism in the interior space of the lifeguard passage, which has space constraints, and equipment construction work is eliminated. This makes it possible to easily carry out inspections and inspections.

Explanatory diagram showing fire hydrant equipment installed inside the tunnel Explanatory diagram showing fire hydrant equipment installed in the lifeguard passage Explanatory diagram showing the open state of the fire hydrant door Explanatory diagram showing the fire hydrant equipment installed in the lifeguard passage Explanatory diagram showing the hose storage area exposed with the inspection door removed Explanatory diagram showing the structure of the hose storage section installed embedded in the lifeguard passage Explanatory diagram showing the structure of the hose bucket rotatably installed in the hose storage section An explanatory diagram showing the internal structure of a fire hydrant equipment in which the hose storage section and the valve storage section are arranged separately, as viewed from the road side. Explanatory diagram showing a fire hydrant facility with a divided inspection door made of striped steel plate Explanatory diagram showing a fire hydrant facility with a fire hydrant door that slides open and close Explanatory diagram showing the structure of a fire hydrant door that slides open and close An explanatory diagram showing a fire hydrant facility in which a fire extinguisher storage section and a hydrant storage section are provided integrally with a hose storage section. An explanatory diagram showing the internal structure of a fire hydrant facility in which a valve storage part is arranged separately from an integrated hose storage part, fire extinguisher storage part, and hydrant storage part, as seen in a cross section from the road side. Explanatory diagram showing the box cutout formed in the lifeguard passage

[Summary of tunnel fire extinguishing equipment]
FIG. 1 is an explanatory diagram showing a fire hydrant facility 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 passage 14 is provided along the tunnel wall surface 12 on the left side of the road 15, and a fire hydrant embedded part with an opening is provided on the road surface of the lifeguard passage 14, and a fire hydrant equipment 16 is installed there. has been done. Fire hydrant equipment 16 is installed every 50 meters in the tunnel longitudinal direction.

In the fire hydrant equipment 16, a maintenance door equipped with a fire hydrant door is arranged as a road board on the lifeguard passage, and the fire hydrant door on the passage is opened from the road 15 side or the lifeguard passage 14 side and stored inside. It is possible to extinguish a fire by pulling out a hose with a nozzle attached.

The inner space below the observer passage 14 is used as a duct 22, and a conduit 23 and the like are laid at the back of the duct 22.

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, and a branch pipe branched from the water supply main pipe 24 is drawn into the fire hydrant equipment 16 to supply fire extinguishing water.

[Overview of fire hydrant equipment]
Figure 2 is an explanatory diagram showing the fire hydrant equipment installed in the lifeguard passage, Figure 3 is an explanatory diagram showing the fire hydrant door open, and Figure 4 is a plan view of the fire hydrant equipment installed in the lifeguard passage. An explanatory diagram, FIG. 5 is an explanatory diagram showing a state in which the inspection door is removed and the hose storage section is exposed.

As shown in FIGS. 2 and 4(A), a fire hydrant embedded part 26 is opened on the road surface at the position where the handrail 25 of the lifeguard passageway 14 is cut, and an inspection door 28 functioning as a road surface board is removed there. They are freely placed.

The inspection door 28 is made of a striped steel plate with a plurality of non-slip projections formed on its surface. By using the striped steel plate for the inspection door 28, inspectors and evacuating users can easily access the inspection door 28. Even if you walk on it, you can pass safely without slipping. Furthermore, the inspection door 28 is provided with handles 34 at two places on the front side, and the inspection door 28 can be removed by holding the handles 34 and lifting it up.

A rectangular door opening 31 is formed near the center of the inspection door 28, and a fire hydrant door 30 that can be opened and closed vertically with the rear side as a fulcrum is arranged therein, and is locked in a closed state by a handle 32.

A fire hydrant name plate 36 and a notification device panel 38 are installed on the wall surface facing the road 15 of the lifeguard passageway 14 where the fire hydrant equipment 16 is installed. The reporting device panel 38 is provided with a red indicator light 40, a transmitter 42, and a response lamp 44. The red indicator light 40 is always lit so that the installation location of the fire hydrant equipment 16 can be seen from a distance. In the event of a fire, when the transmitter 42 is pressed and the push button switch is turned on, a transmission signal is sent to the fire receiver in the monitoring room and a fire alarm is issued.Accompanyingly, a response signal is sent from the fire receiver and a response lamp is activated. 44 is lit.

As shown in FIGS. 3 and 4(B), when a vehicle accident involving a fire occurs in a tunnel, the user goes to the fire hydrant equipment 16 near the location of the fire and unlocks it by operating the handle 32. to open the fire hydrant door 30. The fire hydrant door 30 opens upward around a hinge 33. The fire hydrant door 30 can be opened from the road 15 side or from the lifeguard passageway 14 side.

A coil spring is attached to the hinge 33 side of the fire hydrant door 30 to bias the door in the opening direction, and when the lock is released by operating the handle 32, the force of the coil spring is used to open the door, or the opening is assisted with a light force. You may also be able to open it with .

When the fire hydrant door 30 is opened, the nozzle 50 attached to the tip of the hose 48, which is detachably supported by a nozzle holder 52 on the back side of the door, is exposed to the outside through the door opening 31. Therefore, the user removes the nozzle 50 from the nozzle holder 52 on the back of the door and pulls out the hose 48 from the hose outlet 46.

Next, when the activation push button 54 placed in the door opening 31 of the opened fire hydrant door 30 is operated, the opening control of the remote fire hydrant valve placed on the management passage side is performed by turning on the switch. Fire extinguishing water is supplied from the water supply main to the hose 48, and fire extinguishing work can be performed by spraying water from the nozzle 50.

When the fire extinguishing work is completed, as shown in FIG. A hose rewinding operation is performed in which the drained hose 48 is rolled up and stored inside the cylindrical basket-shaped hose bucket 62 arranged therein. Note that FIG. 5 shows the hose 48 removed from the hose storage section 60.

The opening of the hose storage section 60 by removing the inspection door 28 is performed in the same manner when inspecting the fire hydrant equipment 16. Since all of this inspection work can be done from the observer passageway 14 side, there is no need to restrict traffic to vehicles passing through the tunnel when inspecting the fire hydrant equipment 16, and the inspection work can be done easily and safely.

In addition, corner fitting pieces 29 are protruded from four locations on the back side of the inspection door 28, which enable positioning guidance when attaching and detaching the inspection door 28 to the fire hydrant embedded part 26 that opens into the lifeguard passage 14. .

[Structure of fire hydrant equipment]
(Structure of hose storage part)
FIG. 6 is an explanatory diagram showing the structure of the hose storage part embedded in the lifeguard passage, with FIG. 6(A) showing a plan view and FIG. 6(B) showing a cross section seen from the side. . Moreover, FIG. 7 is an explanatory diagram showing the structure of a hose bucket rotatably provided in the hose storage section.

As shown in FIGS. 6 and 7, a hose storage section 60 is arranged in the fire hydrant embedded section 26 of the lifeguard passageway 14. The hose storage section 60 includes a box-shaped housing 61 that is open on the upper side, and a hose bucket 62 is rotatably provided inside the housing 61.

The hose bucket 62 uses a metal pipe as a frame material and is formed into a cylindrical basket shape. For example, three ring frames 62a, 62b, and 62c are connected and arranged vertically by a radial pipe frame, and a plurality of horizontal rollers 66 are rotatably arranged outside the center ring frame 62b, and the lower A rotation support mechanism is realized in which a plurality of lower rollers 68 are rotatably supported on the lower side of the ring frame 62c, and the hose bucket 62 is rotatably supported by the support of the horizontal rollers 66 and the lower rollers 68.

Note that the rotation support mechanism for the hose bucket 62 is not limited to the rotation support mechanism using the horizontal roller 66 and the lower roller 68, and may be any appropriate rotation support mechanism.

The hose 48 is stored in the hose bucket 62 in an inwardly wound state. The base of the hose 48 is connected to a rotary joint 64 provided at the tip of a pipe that stands up from the bottom opening at the center of the housing. Further, the rotary joint 64 has a structure that allows the hose 48 to be attached or detached by a predetermined one-touch operation as necessary.

At the center of the opening on the upper side of the hose bucket 62, a hose outlet pipe frame 72 is arranged by two pipe frames 70, and a hose outlet 46 is formed.

In this embodiment, the hose outlet pipe frame 72 is formed into a pentagonal home base shape corresponding to a home base used in baseball to form the hose outlet 46. By making the hose outlet 46 into a home base shape and arranging the apex of the pentagon toward the front (toward the road 15 side), when the nozzle 50 is removed and the hose 48 is pulled out through the hose outlet 46, the hose 48 can be pulled out from the front in the left and right direction. With respect to any direction in which the hose is pulled out, the hose 48 hits one of the three corners located in the front at two points and is pulled out, which stabilizes the direction of the hose 48 and stabilizes the direction of the pull-out. This avoids contact with the lifeguard passage consisting of the pipe frame, reduces frictional resistance by contacting the pipe frame at two points, reduces the pulling force, and furthermore, wear and tear on the hose 48 is suppressed.

Note that, as the home base shape, it is preferable that all three front corners be 90 degrees or more from the viewpoint of freedom in drawing out the hose, but the scope of the invention is not limited to this.
Further, the shape of the hose outlet 46 may be any suitable polygonal shape other than the home base shape, or may be circular.

(Equipment structure with separate valves)
FIG. 8 is an explanatory diagram showing the internal structure of a fire hydrant equipment in which a hose storage part and a valve storage part are arranged separately, in a cross section as seen from the road surface side.

As shown in FIG. 8, in this embodiment, the valves are separated from the fire hydrant equipment 16 placed on the lifeguard passageway 14 side, and the valves are stored in the management passageway 20 located under the floor slab 18. Separate valves are provided in the device 76.

A branch pipe 78 branched from the main water supply pipe 24 is connected to the valve storage device 76, and then, as a water discharge control mechanism, a remote fire hydrant valve 80 using an electric valve, an automatic pressure regulating valve 82, and an automatic drain valve 84 are connected. , the maintenance device 86 is connected in sequence, the piping 74 taken out from the secondary side of the maintenance device 86 is raised into the internal space of the lifeguard passage 14, the rotary joint 64 is provided at the tip of the piping 74, and the hose bucket 62 is connected to the maintenance device 86. The base side of the hose 48 housed in is rotatably connected to a rotary joint 64.

Further, a signal line from a start push button 54 provided in the hose storage section 60 is connected to a remote fire hydrant valve 80 via a controller 75, and when the start push button 54 is pressed, the remote fire hydrant valve 80 opens by turning on the switch. At the same time, a pump start signal is sent to the pump equipment to start the fire pump.

Further, when the start button 54 is pressed while water is being discharged, the switch is turned off to close the remote fire hydrant valve 80, and at the same time, a pump stop signal is sent to the pump equipment to stop the fire pump.

Note that instead of the activation push button 54, an open push button and a close push button may be provided. Alternatively, a fire hydrant valve opening/closing lever may be provided in the hose storage portion 60, and the movement of the fire hydrant valve opening/closing lever may be transmitted to the fire hydrant valve via a wire to open and close the fire hydrant valve.

By arranging the valve storage device 76 in the management passage 20 and arranging the valves separately from the fire hydrant equipment 16, the fire hydrant equipment 16 installed on the lifeguard passage 14 side can be downsized, and the space can be saved. There is no need to provide a water discharge control mechanism in the interior space of the lifeguard passageway 14, which has restrictions, and equipment construction and inspection can be easily performed.

[Operation of fire hydrant equipment]
(during normal monitoring)
During normal monitoring when vehicles are passing through the road of the tunnel 10 shown in FIG. 1, the fire hydrant door 30 of the fire hydrant equipment 16 is closed, as shown in FIG. It does not obstruct traffic or pose a danger.

(When a fire occurs)
On the other hand, if a vehicle accident involving a fire occurs in the tunnel 10, the user goes to the fire hydrant equipment 16 near the location of the fire and presses the transmitter 42 of the notification device panel 38 shown in FIG. The completion of the notification to the monitoring room side is confirmed by turning on the response lamp 44.

Subsequently, in order to extinguish the fire, the user inserts his/her hand into the handle 32 of the fire hydrant door 30 and pulls it to release the lock, and as shown in FIG. 3, the fire hydrant door 30 is opened upward. When the fire hydrant door 30 is opened in this way, the nozzle 50 supported on the back side of the door is exposed in front of the user through the door opening 31.

As a result, the user can take out the nozzle 50 from the road 15 side or the lifeguard passage 14 and pull out the hose 48 to start discharging water. When the user presses the start button 54, the remote fire hydrant valve 80 is opened and the hose 48 is Fire extinguishing water is supplied, and fire extinguishing work can be performed by spraying water from the nozzle 50.

In this case, the hose bucket 62 in the hose storage section 60 rotates as the hose 48 is pulled out, and the hose 48 is sent out due to inertial rotation, allowing the hose 48 to be pulled out with a light force.

When the fire is extinguished and the fire extinguishing work is completed, the remote fire hydrant valve 80 can be closed by pressing the start push button 54 again, and water discharge from the nozzle 50 can be stopped.

In addition, in the restoration work after the fire extinguishing work is completed, as shown in FIG. The hose 48 is stored in the bucket 62 in an inwardly wound state.

In this case, by feeding the hose 48 while rotating the hose bucket 62, the work of rewinding the hose 48 can be completed simply and easily. Moreover, when rewinding the hose 48, by removing the base side of the hose 48 from the rotary joint 64, the hose 48 can be rewinded while rotating the hose bucket 62 without considering twisting of the hose 48. Can be done.

(Inspection of fire hydrant equipment)
When inspecting the fire hydrant equipment 16, a staff member may perform the necessary operations from the observer passageway 14 side. That is, the inspection door 28 of the fire hydrant equipment 16 to be inspected is removed to expose the hose storage section 60 above the lifeguard passage 14, and necessary inspections are performed in this state.

Further, in order to inspect the valves, a staff member enters the management passage 20 and inspects the valve storage device 76 installed there.

By inspecting the fire hydrant equipment 16 from the lifeguard passageway 14, there is no need to open the fire hydrant door to the road 15 side or operate it from the road side. There is no need to carry out traffic regulations, and inspection work can be carried out safely without traffic regulations.

[Fire hydrant equipment with separate inspection door]
FIG. 9 is an explanatory diagram showing a fire hydrant installation with a divided inspection door using striped steel plates. As shown in FIG. 9, in this embodiment, the inspection door that closes the fire hydrant embedded part 26 is divided into three inspection doors 28a, 28b, and 28c, and the central inspection door 28b has a fire hydrant door. 30 are arranged.

By dividing the inspection door that closes the opening of the fire hydrant embedded part 26 into three inspection doors 28a, 28b, and 28c, the weight of each inspection door is reduced, and during inspection and restoration, It is only necessary to remove the inspection doors 28a, 28b, 28c at necessary locations, thereby improving work efficiency.

[Embodiment of fire hydrant door that slides open and close]
FIG. 10 is an explanatory diagram showing a fire hydrant equipment provided with a fire hydrant door that slides open and close, with FIG. 10(A) showing the door in a closed state and FIG. 10(B) showing the door in an open state. In addition, FIG. 11 is an explanatory diagram showing the structure of a fire hydrant door that slides open and close, and FIG. 11(A) shows the XX cross section of FIG. 11(B), and FIG. 11(B) shows the back side of the door. .

As shown in FIG. 10(A), a fire hydrant sliding door 90 is provided in the door opening 31 of the inspection door 28 using a striped steel plate so as to be openable and closable by a sliding operation. As shown in FIG. 11(B), the sliding opening/closing structure of the fire hydrant sliding door 90 includes a pair of guide rails 92 having opposite U-shaped cross sections arranged on both sides of the back side of the door opening 31. By fitting both sides of the fire hydrant sliding door 90 into 92, the fire hydrant sliding door 90 is supported so as to be slidable in the front and rear directions.

The other structure is the same as the embodiment shown in FIGS. 2 to 6 in which a fire hydrant door 30 that can be opened and closed in the upper and lower directions is provided.

If a vehicle accident involving a fire occurs in the tunnel 10, the user operates the handle 32 to release the lock and push the fire hydrant sliding door 90 in the depth direction to open it, as shown in FIG. 10(B). This prevents the person from jumping out to the lifeguard passage 14 side.

A nozzle 50 supported by a nozzle holder 52 of a hose outlet pipe frame 72 forming a hose outlet 46 is disposed in the door opening 31 when the fire hydrant sliding door 90 is opened, and the user can access the road 15. Fire extinguishing work can be carried out by taking out the nozzle 50 from the side or the observer passageway 14 side and pulling out the hose 48.

Regarding the fire hydrant sliding door 90, a coil spring is provided between the fire hydrant sliding door 90 and the inspection door 28, which biases the fire hydrant sliding door 90 in the opening direction when the fire hydrant sliding door 90 is locked by the handle 32. When the lock is released by operation, the slide may be opened by the force of a coil spring, or the slide may be assisted to open with a light force.

[Fire hydrant equipment with integrated fire extinguisher storage]
Fig. 12 is an explanatory diagram showing a fire hydrant equipment in which a fire extinguisher storage part and a hydrant storage part are integrated with a hose storage part, and Fig. 13 shows an integrated hose storage part, a fire extinguisher storage part, and a hydrant storage part. FIG. 2 is an explanatory diagram showing the internal structure of the fire hydrant equipment in which the valve housing portions are separately arranged in a cross section as seen from the road surface side.

As shown in FIG. 12, the fire hydrant equipment 16 of this embodiment has three inspection doors 28a, 28b, and 28c removably attached to the road surface opening of the fire hydrant embedded portion 26 on the lifeguard passageway 14. It is closed.

The central inspection door 28b is provided with a fire hydrant door 30 that can be opened and closed vertically, for example, and the left inspection door 28a is provided with a fire extinguisher door 94 that can be opened and closed, for example, vertically. A water faucet door 96 is provided, for example, so that it can be opened and closed vertically.

Furthermore, in addition to the fire hydrant name plate 36 and the notification device panel 38, a fire extinguisher name plate 95 and a water hydrant name plate 97 are arranged on the wall surface of the lifeguard passageway 14 facing the road 15.

As shown in FIG. 13, in the fire hydrant equipment 16, a hose storage part 60 is arranged in the center of a housing installed in the fire hydrant embedded part 26 of the lifeguard passageway 14, and a fire extinguisher storage part 98 is arranged on the left side thereof. , and the water faucet housing section 102 is arranged on the right side thereof. Since the hose storage section 60 is the same as the embodiment described above, the same reference numerals are given and the description thereof will be omitted.

Two fire extinguishers 100 are stored in the fire extinguisher storage section 98, and the fire extinguisher door 94 is opened to the position of the fire extinguisher door 94a shown by the imaginary line to take out the fire extinguisher 100 and enable initial extinguishing. The fire extinguisher 100 can be taken out from the road 15 side or the lifeguard passage 14 side.

In the hydrant storage section 102, a hydrant 104 and a pump start push button 106 used by the fire brigade are arranged. A branch pipe 78 from the main water supply pipe 24 provided in the management passage 20 is raised upward and connected to the water supply faucet 104 . Further, a signal line from the pump start push button 106 is connected to fire pump equipment via a controller 75.

Note that the fire hydrant storage section 98 and the hydrant storage section 102 may be arranged separately from the hose storage section 60.

[Box-cut structure of lifeguard passageway]
FIG. 14 is an explanatory diagram showing the boxed part of the lifeguard passageway from the road side. In this embodiment, there is no duct in the lower part of the supervisor passage 14, but it is filled with concrete, and all electrical conduits and the like are arranged in the management passage.

Regarding such a lifeguard passageway 14, as shown in FIG. 14, a box-shaped cut-out portion 27 is formed in advance, which is a box-shaped cutout extending from the road surface of the lifeguard passageway 14 through the road shoulder to the front wall. The hose storage section 60 shown in FIGS. 2 to 13 can be installed from the front on the road 15 side with respect to the box cutout section 27, making the construction work easier.

[Modification of the present invention]
In the above embodiment, the cylindrical cage-shaped hose bucket 62 is rotatably supported in the hose storage section 60, but the hose bucket may be formed into another shape such as an elliptical cylindrical cage shape to store the hose. It may be fixedly placed in the section. By making the hose bucket into an oval cylindrical cage shape, compared to a cylindrical cage-shaped hose bucket, the length of the hose that is wrapped in one time can be made longer, and the depth of the hose bucket can be reduced for the same hose length. In addition, by not having a rotation support structure, the structure becomes simple and costs can be reduced.

Further, in the above embodiment, the hose storage section is arranged horizontally, but it may be arranged in an appropriate arrangement, for example, arranged diagonally.

Further, 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.

Further, 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 23: Electric conduit 24: Water supply main 26: Fire hydrant embedded part 27: Box cutout Parts 28, 28a, 28b, 28c: Inspection door 29: Corner fitting piece 30: Fire hydrant door 31: Door opening 32: Handle 33: Hinge 34: Handle 36: Fire hydrant nameplate 38: Notification device panel 40: Red indicator light 42: Transmitter 44: Response lamp 46: Hose outlet 48: Hose 50: Nozzle 52: Nozzle holder 54: Start push button 60: Hose storage section 62: Hose buckets 62a, 62b, 62c: Ring frame 64: Rotary joint 66: Horizontal roller 68: Lower roller 70: Pipe frame 72: Hose outlet pipe frame 74: Piping 75: Controller 76: Valve storage device 78: Branch piping 80: Remote fire hydrant valve 82: Automatic pressure regulating valve 84: Automatic drain valve 86: Maintenance device 90: Fire hydrant sliding door 92: Guide rail 94: Fire extinguisher door 95: Fire extinguisher name plate 96: Hydrant door 97: Hydrant name plate 98: Fire extinguisher storage section 100: Fire extinguisher 102: Hydrant storage section 104: Hydrant 106 :Pump start push button

Claims (7)

At least the road surface of the lifeguard passage, which is provided along the tunnel wall between the road and the tunnel wall in a tunnel having a road, and is below the road surface of the lifeguard passage, which has a road surface that is one step higher than the road surface of the road. A fire hydrant device installed in a buried part of the fire hydrant with an installation opening on the side and housing equipment related to the fire hydrant device including a hose,
a door opening located within the installation opening of the fire hydrant embedded part when the fire hydrant device is installed in the fire hydrant embedded part, and provided with a fire hydrant door that can be freely opened and closed;
a hose outlet formed inside the fire hydrant device corresponding to the position of the door opening;
Equipped with
The hose outlet has a polygonal shape, and is formed such that when the fire hydrant device is installed in a fire hydrant embedded part, one of the vertices is located closer to the road side than the other vertices. fire hydrant system.
The fire hydrant device according to claim 1,
The fire hydrant device is characterized in that the fire hydrant door can be opened and closed by sliding in a direction along the road surface of the lifeguard passage.
The fire hydrant device according to claim 2,
The fire hydrant device is characterized in that the fire hydrant door is opened by sliding from the road side toward the tunnel wall side.
The fire hydrant device according to any one of claims 1 to 3,
A fire hydrant device comprising a mechanism that biases the fire hydrant door in the opening direction or a mechanism that assists in opening the fire hydrant door.
The fire hydrant device according to any one of claims 1 to 4,
a hydrant storage part that is installed in the fire hydrant embedded part and stores a hydrant;
a hydrant door provided on the road surface side of the lifeguard passage;
Equipped with
A pump start push button for starting a fire pump is stored in the hydrant storage part,
A fire hydrant device, characterized in that the pump start push button can be operated when the hydrant door is open.
The fire hydrant device according to any one of claims 1 to 5,
A fire hydrant device, characterized in that a predetermined water discharge control mechanism for supplying fire extinguishing water to the hose is housed under the floor slab of the tunnel.
The fire hydrant device according to claim 6,
A fire hydrant device, wherein the water discharge control mechanism includes a fire hydrant valve that supplies the fire extinguishing water to the hose by an opening operation and stops the supply of the fire extinguishing water by a closing operation.

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