JP2001009052A - Hydrant device for tunnel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the costs over the entire part of a tunnel including civil engineering work by eliminating the need for embedment and installation of device bodies to the wall surface of the tunnel. SOLUTION: The hydrant device 6 is diagonally installed to the position of the wall surface which is above a watchman passage 3 in the tunnel, is on the outer side of construction gages 13 and the upper side of the walking space 3a of the watchman passage 3. The hydrant device 6 is provided with a main body 7 diagonally installed on the wall surface and a door 8 having a hose reel 9 wound with a hose 10 with a nozzle on the inner side. Fire extinguishment is executed by opening the door 8 and lowering the nozzle 11 by manipulation of a start manipulation box 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire hydrant device for a tunnel installed in a tunnel such as a motorway.

[0002]

2. Description of the Related Art Conventionally, in a tunnel of a motorway,
In order to protect persons and vehicles from a fire accident occurring in a tunnel, emergency equipment as shown in FIG. 14 is installed. The emergency equipment shown in FIG. 14 includes a fire detector 100 and an emergency telephone 101 for monitoring and reporting a fire, and a fire hydrant device 102 and a water spray head 103 for extinguishing a fire. Lighting fixtures 110 are installed at regular intervals along the upper side wall of the tunnel.

FIG. 15 is a sectional view of the fire hydrant device 102 of FIG. 14 in an installed state. In the tunnel, a concrete frame 105 is constructed in a kamaboko shape on the road surface 104, and an observer passage 106 is provided along one tunnel side surface. The fire hydrant device 102 has a thin box shape and has a
6 is embedded in a storage portion 107 formed in a wall surface of a concrete frame 105 operable from 6.

[0004] A water supply pipe 108 is provided in a duct at the lower part of the observer passage 106, and a pipe 109 branched from the water supply pipe 108 is set up and connected to a gap behind the fire hydrant device 102.

[0005]

However, in such a conventional fire hydrant device for a tunnel, the depth L of the storage portion 107 for embedding and installing the fire hydrant device 102 is added to the depth L1 of the fire hydrant device 102. A gap L2 required for connecting the pipe 108 from behind is necessary, and the gap L2 needs to be at least about 120 mm. As a result, the depth L of the storage section 105 is, for example, L
= 450 mm is required.

As described above, the storage unit 10 of the fire hydrant device 102
In the case where 7 is formed in the concrete frame 105, the excavated cross-sectional area of the tunnel increases and the amount of concrete poured in increases due to the overhang of the storage portion 107, and the cost occupied by the civil engineering work for the tunnel becomes considerable. Has become.

The present invention has been made in view of such a conventional problem, and therefore, there is provided a fire hydrant device for a tunnel which does not need to bury the installation of the tunnel wall and reduces the cost of the entire tunnel including civil engineering work. The purpose is to provide.

[0008]

In order to achieve this object, the present invention is configured as follows. First, the present invention is directed to a fire hydrant device for a tunnel in which a hose with a nozzle is wound around a hose reel and stored, a door is opened, a hose with a nozzle is pulled out from the hose reel, and water is discharged during use.

The present invention relates to such a fire hydrant device for a tunnel, which wall is located above a supervisory path or an inspection path in a tunnel, outside a building limit, and above a walking space on the supervisory path or an inspection path. And a device main body that houses a hose reel and has a door that can be opened and closed downward is provided at a slant.

As described above, the fire hydrant apparatus for a tunnel according to the present invention is capable of monitoring the position of the wall surface of the corner portion above the wall surface of the tunnel, that is, above the observer passage or inspection path in the tunnel, outside the building limit and monitoring. Since the device body with the door is inclined at the position of the wall surface above the walking space on the walkway or the inspection road, there is no need to form a recess in the tunnel wall for embedding and installing the device body. The excavation area and the amount of concrete poured in are reduced, and the cost of the entire tunnel can be significantly reduced.

The fire hydrant activation operation box of the fire hydrant device for a tunnel is arranged at a position operable from the observer passage or the inspection path. Further, as the installation position of the apparatus main body, it is desirable to install the apparatus main body at a position substantially the same as the installation position of the lighting fixture installed on the tunnel wall surface.

In the fire hydrant device for a tunnel according to the present invention, a hose reel is arranged inside a door which can be opened and closed downward with respect to the device main body, and the door latch is released by the wire traversing accompanying the operation of the fire hydrant activation operation box. The door is opened downward by its own weight against the slanted main body, and the hose reel is exposed to the lower side.At the same time, the grip ball at the end of the drawstring tied to the nozzle attached to the hose end Let it fall.

[0013] For this reason, by pulling the string with the grip ball that has fallen when the door of the fire hydrant device is opened, the hose with the nozzle is pulled down from the hose reel, and the water discharge start switch in the fire hydrant start operation box is operated. With this, the pump is started and the fire hydrant valve is opened, so that the fire can be extinguished while the water is discharged from the nozzle. The pump is started under the condition that the door of the apparatus is opened.

In order to electrically open and close the door and take it in and out of the reel, a hose reel is arranged inside a door that can be opened and closed downward with respect to the apparatus main body, and the hose reel is inclined by operating a motor by operating a fire hydrant activation operation box. The door is opened to the position where the door is opened downward by the drive of the motor with respect to the main body, and the nozzle attached to the end of the hose is lowered.

[0015]

FIG. 1 is an explanatory view of a cross section of a tunnel provided with a fire hydrant device for a tunnel according to the present invention. In FIG. 1, a concrete frame 2 is constructed in a kamaboko shape on a road surface in a tunnel, and a guard path 3 is constructed along a left shoulder of the road surface 1. A duct 4 is provided inside the observer passage 3, and a water supply pipe 5 for supplying pressurized fire extinguishing water to the fire hydrant device is provided.

A walking space 3a is secured at the upper part of the guard path 3 as shown by a broken line. An architectural limit 13 is set on the road surface 1 as shown by a broken line. Outside the architectural limit 13, lighting equipment and ground equipment including the fire hydrant device of the present invention are installed.

FIG. 2 is a diagram for explaining the concept of building limits determined by road standards. That is, the construction limit 13 is a height of 4500 mm on the road surface 1 as a lower limit, and 200 m here.
It is set parallel to the road surface with a width of m, and at the upper corner portion, the corner is cut off diagonally. Further, even in the walking space 3a on the observer passage, for example, the width 7
50 mm and a height of 2000 mm are set.

Referring again to FIG. 1, with respect to the building limit 13 set in the tunnel, the fire hydrant device 6 of the present invention has a walking space 3a outside the building limit 13 and on the observer passage 3.
It is inclined at the position of the wall surface on the upper side.

With respect to the fire hydrant device 6 of the present invention which is obliquely provided on the upper wall surface in the tunnel as described above, a water supply pipe 14 branched from the water supply pipe 5 of the duct 4 is set up along the wall surface and the fire hydrant is provided. The piping is connected from behind the device 6. In addition, a start operation box 12 for the fire hydrant device 6 is installed at a wall surface on the road surface 1 side in the observer passage 3 located below the fire hydrant device 6.

An electric conduit 15 is provided between the starting operation box 12 and the fire hydrant device 6 on the upper wall surface, and a wire and a signal line used for releasing the latch for opening the door are passed through the electric conduit 15.

The fire hydrant device 6 has a main body 7 fixed to the wall side.
In addition, a door 8 that can be opened and closed in a pendulum shape with the upper part as an axis is provided for the opening on the front surface of the main body 7. A hose reel 9 is housed inside the door 8, and the door 8 is closed by the main body 7 in a normal monitoring state.

When a start operation is performed in the start operation box 12, the door 8
Is released and the hose reel 9 is opened downward as shown in the figure to expose the hose reel 9 and, as will be described later, the grip ball tied to the nozzle 11 at the tip of the hose 10 with a string is dropped. By pulling down the grip ball, the hose 10 having the nozzle 11 as shown
By operating the fire hydrant valve opening switch of the start-up operation box 12, the fire extinguishing of the fire vehicle can be performed while discharging water from the nozzle 11. FIG. 3 shows the fire hydrant device of the present invention installed on the wall surface of FIG.
FIG. 3A shows the internal structure viewed from the side, and FIG. 3B shows the structure viewed from the front with the door partially broken.

In FIG. 3A, a water pipe 21 is drawn in from behind the main body 7 and is connected to a swivel joint 16 on the door 8 side through a fire hydrant valve 22 and a pressure regulating valve 23. A swing pipe 18 is mounted below the swivel joint 16, and the drum 17 of the hose reel 9 is rotatably connected to the inner end of the swing pipe 18 by a swivel joint 19. The left side of the swivel joint 16 is rotatably supported by a shaft bearing 33 as shown in FIG.

A hose 10 using a resin-retained hose or the like is wound around the hose reel 9, and the root of the hose 9 is connected to a secondary pipe connected to a swivel joint 19. A nozzle 11 is attached to a tip of the hose 10. Here, a safety valve 24 is attached to a corner portion of the swing pipe 18 on the hose reel 9 side.

A pull string 25 is attached to the nozzle 11. A grip ball 26 is attached to the tip of the draw string 25, and the pull string 25 is put on a holder 27 together with the grip ball 26 in a state in which the pull string 25 is put together.

A latch device 2 is provided below the door 8 on the main body 7 side.
8 is attached. A latch 32 provided inside the door 8 is engaged with the latch device 28 to latch the door 8. A wire 30 from the starting operation box 12 in FIG. 1 is connected to the latch device 28 through the conduit 15.

The wire 30 is pulled when the operation lever of the start operation box 12 is released, and the latch device 28 operates to release the latch of the latch fitting 32. Further, a signal line 31 is drawn out from the conduit tube 15 and the fire hydrant valve 2 which functions as an electric valve is provided.
The hydrant valve 22 can be opened / closed by turning on / off the hydrant valve opening by the start-up operation box 12 shown in FIG.

In the vicinity of the swivel joint 16 inside the upper door 8, a door open confirmation switch 34 is provided. For example, a limit switch is used to detect the opening of the door 8, and a pump control panel is provided. Outputs a confirmation signal for activation.

FIG. 4 shows a state in which the fire hydrant apparatus according to the present invention shown in FIG. 3 is installed on a tunnel wall surface.

In FIG. 4, the fire hydrant device 6 is fixed to the tunnel wall by mounting angles 35 and 36, and its position is outside the building limit 13. Specifically, the installation position of the fire hydrant device 6 is desirably, for example, approximately the same height position as the installation position of the lighting device 110 provided in the tunnel in FIG.

The fire hydrant device 6 of the present invention provided at the height position of the lighting device 110 may be provided between the lighting devices 100, or the fire hydrant device 6 of the present invention may be provided side by side at the position of the lighting device 100. Is also good.

By arranging the fire hydrant device 6 at substantially the same height as the installation position of the lighting device 100, cleaning by a cleaning car can be performed at once, and the cleaning time can be reduced.

Referring again to FIG. 4, the fire hydrant device 6 of the present invention, which is obliquely mounted on the wall of the tunnel, holds the door 8 closed by latching the door 8 by the latch device 28 in the normal monitoring state. I have. At this time, a rotational moment is applied to the door 8 counterclockwise about the swivel joint 16 by the weight of the hose reel 9 inside the door.
Therefore, when the latch 8 is released from the latch by the latch device 28, the door 8 is opened downward by its own weight.

FIG. 5 shows an embodiment of the start-up operation box 12 used for operating the fire hydrant device 6 of FIG. 4. FIG. 5 (A) is a front view, and FIG. 5 (B) is a side view showing an internal structure. FIG.

In FIG. 5, the starting operation box 12 is provided at the lower front with an operating lever 37 also serving as a door which can be opened to the front with the lower part as an axis. A plate 38 is provided.

The tip of a wire 30 is connected to the inside of the operation lever 37. The wire 30 is drawn into the upper conduit tube 15 through the roller 54, and the latch device inside the fire hydrant device 6 shown in FIG. 28. For this reason, the upper push-off plate 38 is broken and the operation lever 37 is moved three times.
When the operation lever 37a is pulled forward as shown in FIG. 7a, the wire 30 is pulled by the movement of the operation lever 37a, and the latch device 28 of the fire hydrant device 6 shown in FIG. 4 can be unlatched.

A fire hydrant valve opening switch 40 is disposed behind the push-off plate 38. When the fire hydrant valve opening switch 40 is turned on, the fire hydrant valve 22 shown in FIG. Further, a pump start switch 39 is provided inside the operation lever 37.
The pump start switch 39 uses, for example, a limit switch.
Is opened to the position of 37a, the wire 30 hits the operation piece of the limit switch, and the pump start switch 39 is turned on. Note that the pump start switch 39 may be arranged so as to be in contact with the operation lever 37, and may be turned on when opened.

When the pump start switch 39 is set to the operation lever 37
Is turned on with the opening of the pump, the pump control panel starts the pump on the condition that the door of the fire hydrant device is opened, as will be described later. By pressing the internal fire hydrant valve opening switch 40 after opening the operation lever 37, the fire hydrant valve 22 provided in the fire hydrant device 6 of FIG. 4 is opened by a motor drive and adjusted to the specified pressure by the pressure regulating valve 27. Fire extinguishing water can be discharged from the nozzle 11.

FIG. 6 is an explanatory view showing a state in which the door of the fire hydrant device of the present invention is opened by operating the start-up operation box 12 of FIG. In FIG. 5, the push-off plate 38 of the starting operation box 12 is shown.
, The operation lever 37 is pulled toward the user, and the latch device 28 releases the latch of the door 8 by the action of the wire 30,
The door 8 is opened to the illustrated position where the door 8 and the hose reel 9 are opened downward by the swing pipe 18 around the swivel joint 16 as the center of rotation.

When the door 8 is opened, the holder 27 is opened.
The ball 26 that was riding on the car falls and the start operation box 1 shown in FIG.
The grip ball 26 falls from the road surface 1 on which the vehicle 2 is installed to a position sufficiently accessible. Therefore, the operator can pull out the hose 10 with the nozzle 11 attached to the tip from the hose reel 9 by pulling the drawstring 25 with the grip ball 26.

If the operator pulls out the hose 10 from the hose reel 9 and holds the nozzle 11, the fire hydrant valve 22 is opened by operating the fire hydrant valve opening switch 40 provided in the start-up operation box 12 in FIG. The fire extinguishing water is discharged from the nozzle 11 and heads for the fire vehicle.

When the door 8 is opened, the door open confirmation switch 34 is turned on to send a door open confirmation signal to the pump control panel. Before that, the operation of opening the operation lever 37 in the start-up operation box 12 shown in FIG. , The pump start switch 39 is also turned on, so that the pump control panel
The pump is started to supply pressurized fire extinguishing water on condition that the switch 9 is turned on and the door open confirmation switch 34 is turned on.

FIG. 7 is an explanatory diagram of a control system when the embodiment of the fire hydrant device 6 of FIG. 3 and the start-up operation box 12 of FIG. 5 are used. The fire hydrant device 6 is provided with a fire hydrant valve 22 and a door open confirmation switch 34. The start operation box 12 is provided with a pump start switch 39 and a fire hydrant valve open switch 40. Power is supplied to the start-up operation box 12 via a power supply line 42.

When the operating lever 37 of the starting operation box 12 is opened and the wire 30 is pulled, the latch of the latch device 28 is released, and the door 8 of the fire hydrant device 6 is opened downward as shown in FIG.
The door open confirmation switch 34 is turned on. Start operation box 12
When the operating lever 37 is opened, the pump start switch 39
Is also on. For this reason, the pump control panel 41 starts the fire extinguishing pump based on the two ON signals of the pump start switch 39 and the door open confirmation switch 34, and supplies pressurized fire extinguishing water to the fire hydrant device 6 to discharge water from the nozzle. Become.

If the door of the fire hydrant device 6 is not opened by opening the operation lever 37 of the starting operation box 12 and opening the door of the fire hydrant device 6 by the wire 30, the door open confirmation switch 34 is used.
Is off, the pump control panel 41 does not start the pump, and it is possible to prevent malfunction such as discharging fire extinguishing water with the door closed.

Conversely, even if the pump start switch 39 is erroneously turned on at the time of maintenance or the like, since the door open confirmation switch 34 of the fire hydrant device 6 is turned off, the pump control panel 41 is similarly erroneously started when the pump is started. Can be prevented.

FIG. 8 is a flowchart of a manual starting operation in the embodiment of the fire hydrant device of FIG. First, in step S1, a start operation is performed to break the push-break plate 38 of the start operation box 12 in FIG. 5 and open the operation lever 37 toward the front. In step S2, the latch device 28 is unlatched by wire action and the fire hydrant device is operated. The door 8 of 6 opens downward and the grip ball 26 drops. When the door 8 is opened, the door open confirmation switch 34 is turned on. At this time, the pump start switch 39 of the start operation box 12 is also turned on by the start operation.
At 3, the pump is started.

Subsequently, by pulling the grip ball 26 in step S4, the nozzle 11 at the tip of the hose can be lowered from the hose reel 9 provided inside the door 8. Subsequently, in step S5, the nozzle 11 pulled down from the hose reel 9 is held, and the fire hydrant valve opening switch 40 provided in the start-up operation box 12 shown in FIG. 5 is turned on. Activities can be performed.

FIG. 9 is a flowchart of a manual recovery operation after the fire is extinguished. For manual recovery, first, the hydrant valve opening switch 40 provided in the start-up operation box 12 in FIG. 5 is turned off, and in step S2, the hydrant valve 22 is closed by the motor drive and the discharge of water from the nozzle 11 is stopped. Next, step S
At 3, the observer uses a ladder or the like to wind the hose 10 around the hose reel 9, accommodates the nozzle 11 in the holder, further rolls up the gripping ball 26 and sets it on the holder 27, and in this state the fire hydrant device in step S4 The door 8 of 6 is closed.

When the door 8 is closed, the door open confirmation switch 3
4 turns off, so that the pump starting condition is not satisfied, and the pump is stopped in step S5. Of course, the pump can be stopped by the pump control panel 41.

FIG. 10 shows another embodiment of the fire hydrant device of the present invention. In this embodiment, the opening and closing of the door 8 of the fire hydrant device 6 and the insertion and removal of the hose 10 from the hose reel 9 are driven by a motor. It is characterized by doing so.

FIG. 10 is an explanatory view of the fire hydrant device 6 when the door is opened. A door opening / closing motor 44 is provided in the main body 7 of the fire hydrant device 6, and connects a wire 47 wound around a pulley 46 to a lower portion of the door 8. The door opening / closing motor 44 is a motor with a speed reducer, and the wire 47 can be unwound and wound by the pulley 46 with a sufficient speed reduction and torque.

A reel drive motor 45 is provided at a lower portion inside the door 8. The reel drive motor 45 is also a motor with a speed reducer, and a gear 48 is connected to the output shaft.
The gear 48 meshes with a rack gear formed in a ring shape on the end surface of the reel 9. Therefore, the hose reel 9 can rotate the hose reel 9 by rotating the gear 48 forward and backward by the reel drive motor 45.

The remaining structure of the fire hydrant device 6 is the same as that of the embodiment of FIG. Of course, the grip ball 26 and the drawstring 25 for manual operation in the embodiment of FIG. 3 are not provided.

FIG. 11 is an explanatory diagram of a control system of the start-up operation box 12 and the fire hydrant device 6 corresponding to the embodiment of FIG. The start-up operation box 12 is structurally provided with a push-pull plate 38 and an operation lever 37 as shown in FIG.
The latch 30 can be released by the wire operation of the latch device 28 of the fire hydrant device 6 by the wire 30 connected to the hydrant device 6. As in the case of FIG. 5, a pump start switch 39 that is turned on by the movement of the operation lever 37 when it is opened is provided.

The start operation box 12 is provided with a control circuit 52, and the control circuit 52 is provided with a pump start switch 39.
And a hydrant valve opening switch 40 and a recovery switch 51 are newly connected.

The fire hydrant device 6 is provided with a new door opening / closing motor 44 and a reel driving motor 45 in addition to the motor driven fire hydrant valve 22 and the door open confirmation switch 34. The motor 45 is
The start operation box 12 is connected to the control circuit 52.

As shown in FIG. 5, the starting operation box 12 releases the latch of the hydrant device 6 of the fire hydrant device 6 by opening the operating lever 37 to the front, and the door 8 can be opened. . At this time, the pump start switch 39 is turned on by opening the operation lever 37, but the pump is not started because the door open confirmation switch 34 on the fire hydrant device 6 side is turned off.

When the pump start switch 39 is turned on, the control circuit 52 drives the door opening / closing motor 44 of the fire hydrant device 6, rotates the pulley 46 to unwind the wire 47 as shown in FIG. Open to the downward open position. When the door 8 is opened to the open position, the door open confirmation switch 34
Turns on. At this time, since the pump start switch 39 has already been turned on, the pump control panel 41 starts the pump.

Subsequently, the control circuit 52 of the start-up operation box 12 drives the reel drive motor 45 to lower the hose 16 with the nozzle 11 at the tip. When the nozzle 11 descends to a predetermined height that can be reached by the operator, the motor drive is stopped. Subsequently, when the operator turns on the fire hydrant valve opening switch 40 of the start-up operation box 12, the fire hydrant valve 22 of the fire hydrant device 6 is opened by driving a motor, and fire extinguishing water is discharged from the nozzle.

For the recovery after the fire is extinguished by water discharge, the fire hydrant opening switch 40 of the start-up operation box 12 is turned off to stop water discharge from the nozzle 11, and then the recovery switch 51 is turned on. When the recovery switch 51 is turned on, the control circuit 52 reversely rotates the reel drive motor 45 of the fire hydrant device 6, and winds the hose 10 around the hose reel 9 as shown in FIG.

Subsequently, the control circuit 52 controls the door opening / closing motor 44
Is rotated in reverse, and the wire 47 is wound by the pulley 46,
The door 8 is closed, and the latch fitting 32 is fitted to the latch device 28 to lock. When the door 8 is closed, the door open confirmation switch 34 is turned off, and the pump is stopped.

FIG. 12 is a flowchart of the electric starting operation shown in FIGS. When a start operation is performed by opening the operation lever 37 of the start operation box 12 in FIG. 11 in step S1, the door 8 is opened by driving the door opening / closing motor 44 of the fire hydrant device 6 in step S2 accompanying the turning on of the pump start switch 39. Then, when the door open confirmation switch 34 is turned on, the pump is started.

Subsequently, at step S3, the reel drive motor 4
The nozzle 11 is lowered by the drive of No. 5. Therefore, step S4
Then, by holding the nozzle and turning on the fire hydrant opening switch 40, water discharge is started from the nozzle 11, and fire extinguishing activity can be performed in step S5.

FIG. 13 is a flowchart summarizing the electric power recovery operation in the embodiment shown in FIGS. The electric recovery operation is performed by starting the operation box 1 in step S1 when the fire is extinguished.
When the fire hydrant valve opening switch 40 of No. 2 is turned off, the fire hydrant valve 22 provided in the fire hydrant device 6 is closed in step S2, and the water discharge is stopped.

Next, when the recovery switch 51 is turned on in step S3, the reel drive motor 45 of the fire hydrant device 6 winds up the hose, and then in step S5 the door opening / closing motor 44
Drives to close the door, and with the door open confirmation switch 34 turned off, the pump is stopped in step S6.

In the above-described embodiment, the tunnel in which the guard path 3 is constructed along one shoulder of the road surface 1 as shown in FIG. 1 is taken as an example. In such a case, the guard path 3 is not provided. Instead, an inspection path having the same height as the road surface is provided at a position along the road shoulder corresponding to the guard path 3 on the road surface 1.

As described above, also in the tunnel in which the inspection path is provided in place of the observer passage, the fire hydrant device 6 of the present invention is positioned outside the building limit 13 and above the walking space on the inspection path. Obliquely installed. In this case, the start-up operation box 12 is provided at a tunnel wall position that can be easily operated from the inspection path.

In the above embodiment, the water supply pipe 5 is installed in a duct inside the observer passage 3, and the water supply pipe 14 branched from that position is connected to the position of the fire hydrant device provided at a higher position. The water supply pipe 5 is installed near the top of the fire hydrant device to shorten the length of the pipe, and the branch water supply pipe 14 is slightly extended along the wall surface. You may make it fall down.

[0070]

As described above, according to the present invention, it is located above the walkway or the inspection path in the tunnel, outside the building limit, and above the walking space on the watchway or the inspection path. Since the fire hydrant device is inclined at the position of the tunnel wall surface, there is no need to form a depression in the conventional tunnel side wall surface and provide a fire hydrant device therein, and there is no need to provide a wall depression for installing the fire hydrant device. As a result, the tunnel excavation area and the amount of concrete poured in are reduced, and the cost of the entire tunnel can be considerably reduced.

Even if a fire hydrant device is installed on the wall above the tunnel, which is out of reach of the operator, a pull cord with a grip ball for pulling out a hose by opening a door by operating a start operation box nearby. Even if the electric hose is pulled down and the fire hydrant device is installed above the tunnel that is out of reach, the nozzle can be pulled out to extinguish the fire quickly and easily.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an installation state of a fire hydrant device for a tunnel according to the present invention.

FIG. 2 is an explanatory view of a building limit in a tunnel and a walkway for a guard walker.

FIG. 3 is an explanatory diagram of an embodiment of the present invention.

FIG. 4 is an explanatory view of a tunnel installation state.

FIG. 5 is an explanatory view of a fire hydrant activation operation box used in the present invention.

FIG. 6 is an explanatory view of FIG. 4, in which a door is opened by manual activation and a grip ball is dropped;

FIG. 7 is a block diagram of a control system in the embodiment of FIG. 3;

FIG. 8 is a flowchart of a manual start operation of the embodiment of FIG. 3;

FIG. 9 is a flowchart of a manual recovery operation of the embodiment of FIG. 3;

FIG. 10 is an explanatory diagram of another embodiment of the present invention in which startup and recovery are performed by electric power.

11 is a block diagram of a control system in the embodiment of FIG.

FIG. 12 is a flowchart of the electric starting operation of the embodiment in FIG. 10;

FIG. 13 is a flowchart of an electric recovery operation of the embodiment of FIG. 8;

FIG. 14 is an explanatory view of a conventional tunnel emergency equipment.

FIG. 15 is an explanatory view of an installation state of a conventional fire hydrant device.

[Explanation of symbols]

 1: Road surface 2: Concrete frame 3: Guard walkway 3a: Walking space 4: Duct 5, 14: Water pipe 6: Fire hydrant device 7: Main body 8: Door 9: Hose reel 10: Hose 11: Nozzle 12: Start-up operation Box 13: Building limit 15: Conduit tube 16, 19: Swivel joint 18: Swing piping 22: Fire hydrant valve (Electric valve) 23: Pressure regulating valve 24: Safety valve 25: Pull cord 26: Handhold ball 27: Holder 28: Latch device 30: Wire 31: Signal line 32: Latch fitting 33: Shaft bearing 34: Door open confirmation switch 35, 36: Mounting angle 37: Operation lever 38: Push-and-break plate 39: Pump start switch 40: Fire hydrant valve open switch 42: Power supply Line 44: Door open / close motor 45: Reel drive motor 46: Pulley 47: Wire 48: Gear 51: Recovery switch 52: Control circuit

Claims (5)

[Claims] 1. A fire hydrant device for a tunnel, wherein a hose with a nozzle is wound around a hose reel and stored, and a door is opened to draw out the hose with the nozzle from the hose reel and discharge water when used. Above a corridor or audit road,
A device body having a door openable and closable downward and having the hose reel housed therein is obliquely provided at a position on a wall surface outside a building limit and above a walking space on the guard path or the inspection path. Fire hydrant device for tunnels. 2. A fire hydrant device for a tunnel according to claim 1, wherein a fire hydrant activation operation box is arranged at a position operable from said observer passage or said inspection path. 3. The fire hydrant device for a tunnel according to claim 1, wherein the main body of the device is installed at substantially the same height as an installation position of a lighting device installed on a wall surface of the tunnel. Fire hydrant equipment. 4. The fire hydrant device for a tunnel according to claim 2, wherein the hose reel is disposed inside a door that can be opened and closed downward with respect to the device main body, and a wire associated with the operation of the fire hydrant activation operation box. Release the latch of the door by rigging, open the door to the vertical position by its own weight against the slanted device body, expose the hose reel to the lower side, and simultaneously tie it to the nozzle attached to the hose tip A fire hydrant device for a tunnel, characterized by dropping a grip ball at the end of a drawn string. 5. A fire hydrant device for a tunnel according to claim 2, wherein said hose reel is disposed inside said door which can be opened and closed downward with respect to said device main body, and said motor is operated by operating said fire hydrant activation operation box. A fire hydrant device for a tunnel, wherein the door is opened to a position where the door is opened downward with respect to the inclined device main body by driving, and a nozzle attached to a hose tip is lowered.