JP6510319B2 - Fire hydrant in the tunnel - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an in-tunnel fire hydrant installation that draws out a hose with a nozzle stored in a fire hydrant device and discharges it.

  Conventionally, a fire hydrant device installed in a tunnel such as an expressway or a road exclusively for vehicles stores a hose and a valve with a nozzle mounted on the tip in a fire hydrant storage portion of a case provided with an openable fire hydrant door, For example, two fire extinguishers are stored in a fire extinguisher storage unit provided with a fire extinguisher door that can be opened and closed.

  Such fire hydrants are installed, for example, at intervals of 50 meters along the side wall facing the guard passage provided in the tunnel. The guard aisle is provided as a side wall aisle about 1 meter higher than the road surface, and it is possible to inspect various equipment including the fire hydrant installed in the tunnel safely without obstructing the passage of vehicles in the tunnel. And

  When a vehicle accident involving a fire occurs, a user such as the driver of the accident vehicle opens the fire hydrant door of the fire hydrant device, pulls out the hose with a nozzle, and operates the fire hydrant valve opening / closing lever to extinguish the fire extinguishing pump The fire extinguishing work can be performed by launching and discharging water.

Japanese Patent Application Publication No. 2008-055024 JP, 2009-285126, A

  However, since the fire hydrant installed in such a conventional tunnel was installed along the side wall of the tunnel facing the supervisor's passage, when a fire occurs due to a vehicle accident, the user is required to It is necessary to reach out to the fire hydrant installed on the side wall of the tunnel beyond the aisle, open the fire hydr door, pull out the hose and carry out the fire fighting work, and the fire hydrant is installed at a high position away from the road surface Some people have to go up and operate in the guard aisle without reach, and some guard aisles have handrails, and handrails interfere with fire fighting and are difficult to handle There was a case.

  In order to solve this problem, a fire hydrant device may be embedded along the guard aisle side wall facing the road in the tunnel, but a vehicle fire occurs and the vehicle stops in front of the fire extinguisher door. In this case, the stop vehicle may be in the way, and the fire hydr door may not be opened to pull out the hose, or it may take time to operate the fire hydr system.

  An object of the present invention is to provide an in-tunnel hydrant installation that can be easily and easily handled from the road side and the guard aisle side.

(In-tunnel fire hydrant equipment : Nozzle takeout mechanism by rotating holder )
The present invention,
A fire hydrant embedded part whose mounting port is opened on the side wall facing the road from the shoulder of the guard passage provided along the tunnel side wall,
A fire hydrant device having a nozzle extraction mechanism which is installed in the fire hydrant embedding part and accommodates a hose having a nozzle mounted at its tip in a housing, and supports the nozzle to be freely put in and out of the housing;
In the tunnel fire hydrant installation provided
A nozzle door provided openably and closably at the nozzle outlet of the upper surface of the case facing the surveillance staff passage side;
A rotary holder that pivots the nozzle from the nozzle outlet to the outside and exposes it upward in conjunction with the opening operation of the nozzle door;
Is provided .

(Rotary holder)
The rotary holder is a pivoting member rotatably supporting one end and holding the nozzle detachably at the other end.

Further, the rotary holder rotates in a state where the surface holding the nozzle is directed to the side wall facing the road.

(In- tunnel fire hydrant equipment: water pressure driven nozzle extraction mechanism)
The present invention
A fire hydrant embedded part whose mounting port is opened on the side wall facing the road from the shoulder of the guard passage provided along the tunnel side wall,
A fire hydrant device having a nozzle extraction mechanism which is installed in the fire hydrant embedding part and accommodates a hose having a nozzle mounted at its tip in a housing, and supports the nozzle to be freely put in and out of the housing;
In the in-tunnel fire hydrant installation, the nozzle extraction mechanism of the fire hydrant device is
A nozzle holder provided so as to freely extend and retract upward from the nozzle outlet of the housing;
The opening operation of the fire hydrant valve characterized in that a hydraulic actuator to expose rises to the outside from the takeout nozzle nozzle holder operated by pressure of fire extinguishing water supplied.

(Nozzle holder)
The nozzle holder is
A holder main body in which a frame pipe is arranged in a rectangular hexahedron;
A door plate disposed on the upper surface of the holder body for opening and closing the nozzle outlet;
A holder fitting that detachably holds the nozzle inside the holder body;
Provide

(Separation structure of hose storage part and nozzle takeout mechanism)
The fire hydrant device separates and arranges the nozzle extraction mechanism and the hose storage portion.

(Automatic drainage system)
The water pressure actuator is opened when the water pressure of fire extinguishing water falls below a predetermined value due to the closing of the hydrant valve, and the automatic water draining mechanism lowers the nozzle holder by draining the fire extinguishing water from the water pressure actuator and stores it in the housing. Set up.

(Horse guide)
A hose guide is provided around the opening of the nozzle outlet.

(Basic effect)
In the fire hydrant installation in a tunnel, the present invention is installed in a fire hydrant embedded part having a mounting port opened on a side wall facing the road from a shoulder of a guard passage provided along a tunnel side wall, and installed in a fire hydrant embedded part A vehicle accident with a fire in the tunnel is provided because a hose with a nozzle mounted at the tip is housed in the body and a fire hydrant device equipped with a nozzle takeout mechanism for freely supporting the nozzle in and out of the housing is provided. When a predetermined nozzle takeout operation is performed at the time of occurrence, the nozzle comes out from the top surface of the fire hydrant device located on the shoulder of the surveillance officer passage by the nozzle takeout mechanism and taken out to the outside, and an opening operation of the fire hydrant door is necessary. Without having to do this, it is possible to easily and easily withdraw the nozzle hose and extinguish it.

  Further, since the nozzle comes out from the upper surface of the case located on the shoulder of the guard passage, the hose with the nozzle can be easily and easily pulled out from the road side or from the guard passage to extinguish the fire.

(Effect of nozzle takeout mechanism by rotating holder)
In addition, the nozzle extraction mechanism of the fire hydrant device holds the nozzle and the nozzle door provided openably and closably at the nozzle outlet of the housing, and the nozzle is interlocked with the opening operation of the nozzle door, and the nozzle is external from the nozzle outlet Since the rotating holder is one that is rotatably supported at one end and is a rotating member that holds the nozzle detachably at the other end, the path shoulder of the monitoring passage is provided. When the nozzle door provided on the upper surface of the housing is opened, the nozzle is taken out from the nozzle outlet by the rotation of the rotation holder, and the nozzle can be taken out with a simple mechanism structure.

(Effect of nozzle driven mechanism driven by water pressure)
Also, the nozzle takeout mechanism of the fire hydrant device is operated by the water pressure of the extinguishing water supplied by the opening operation of the fire hydrant valve, and the nozzle holder is taken out There is provided a hydraulic actuator that raises and exposes from the outlet to the outside, and the nozzle holder is a holder main body in which the frame pipe is arranged in a rectangular hexahedron, and a door plate which is arranged on the upper surface of the holder main body and opens and closes the nozzle outlet. Because the holder is provided with a holder fitting that holds the nozzle in a removable manner inside the holder body, it is located on the shoulder of the guard passage by the operation of a hydraulic actuator using the water pressure of the fire extinguishing water supplied to the fire hydrant device. The nozzle is taken out from the upper surface of the existing fire hydrant device, and the nozzle is attached easily and easily without requiring the operation of opening the fire hydrant door. Fire fighting and pull out the hose can be carried out.

(Effect by automatic drainage mechanism)
Also, if the water pressure of the fire extinguishing water drops below a predetermined value due to the closure of the fire hydrant valve in the piping path that supplies the fire extinguishing water to the water pressure actuator, it is opened and the fire extinguishing water is drained from the water pressure actuator to place the nozzle holder in the housing. Since the automatic drainage mechanism to be stored was provided, the hose with a nozzle was pulled out to close the fire hydrant after the fire extinguishing work was completed, the nozzle holder could be lowered by drainage from the hydraulic actuator, and the drained hose was stored. Later, by pushing the nozzle holder from above, it can be accommodated in the housing.

(Effect by hose guide)
Also, since the hose guide is provided on the opening periphery of the nozzle outlet formed on the upper surface of the housing, the hose drawn out from the inside of the housing is rubbed at the opening periphery of the nozzle outlet, but by arranging the hose guide here The hose is pulled out smoothly along the hose guide, which makes it possible to prevent wear of the hose and reduce the hose pulling force.

(Effect of separation structure of hose storage part and nozzle takeout mechanism)
Further, since the fire hydrant device separates the nozzle extraction mechanism and the hose storage unit, for example, the nozzle extraction mechanism is provided in the housing of the fire hydrant device, and the hose storage portion is separated from the housing of the fire hydrant device. By arranging it, it becomes possible to miniaturize and reduce the weight of the fire hydrant device embedded in the mounting opening opened in the side wall facing the road from the shoulder of the guard passage.

Explanatory drawing showing the fire hydrant installed in the tunnel Explanatory drawing showing a fire hydrant installation in a tunnel in which a fire hydrant device is embedded in a guard aisle Explanatory drawing which showed the nozzle extraction state by the rotation holder Explanatory drawing which showed the fire hydrant device from the front Explanatory drawing which showed the internal structure of the fire hydrant apparatus which provided the nozzle extraction mechanism by a rotation holder Top view showing the internal structure of a fire hydrant equipped with a nozzle takeout mechanism by a rotating holder Explanatory drawing which showed the fire hydrant apparatus of the nozzle extraction state by a rotation holder Explanatory drawing which showed the internal structure of the fire hydrant apparatus which provided the nozzle extraction mechanism operated by a hydraulic actuator. Explanatory drawing which showed the fire hydrant device of the nozzle extraction state by the hydraulic actuator Explanatory drawing which showed the fire hydrant apparatus which separated and arranged the hose storage part and the nozzle extraction mechanism. Explanatory drawing which showed the fire hydrant apparatus which separated and arranged the hose accommodating part, the valve accommodating part, and the nozzle extraction mechanism.

[Overview of fire extinguishing equipment in the tunnel]
FIG. 1 is an explanatory view showing a fire hydrant installed in a tunnel. As shown in FIG. 1, a road 15 covered by a tunnel-shaped tunnel wall surface 12 is provided in the tunnel 10, and in this example, the road 15 has two lanes in one direction.

  A guard passage 14 is provided along the tunnel wall surface 12 on the left side of the road 15. A fire hydrant 16 is embedded in a portion of a side of the guard passage 14 from the shoulder of the guard passage 14 to a side wall 14a. Also, the fire extinguisher box 17 is embedded and installed adjacent to the fire hydrant device 16. The fire hydrant device 16 and the fire extinguisher box 17 are installed every 50 meters in the longitudinal direction of the tunnel.

  The lower part of the monitoring staff passage 14 is hollow and forms a duct 18, and the water main 20, the electric conduit 22 and the like are laid at the back of the duct 18.

  The space of the duct 18 behind the fire hydrant device 16 is an inspection work space for the fire hydrant device 16 and the entrance 24 is provided in the guard channel 14 at the upper part to allow inspection personnel to enter and exit when the fire hydrant device 16 is inspected Usually, the entrance 24 is closed by a grid lid, for example.

[Installation structure of fire hydrant device]
FIG. 2 is an explanatory view showing a fire hydrant installation in a tunnel in which a fire hydrant device is embedded in a guard passage, and a front view is shown in FIG. 2 (A) and a plane is shown in FIG. 2 (B). FIG. 3 is an explanatory view showing a state of taking out the nozzle by the rotary holder, and FIG. 3 (A) shows a front view and FIG. 3 (B) shows a plane.

As shown in FIG. 2, in the longitudinal direction of the tunnel wall surface 12, a side wall 14a made of a concrete block of a predetermined length is continuously disposed, and a pavement made of concrete is placed side by side on it. 14 has been built. A cavity serving as a duct 18 is formed below the guard passage 14, and a handrail 25 is provided at the top of the side wall 14a. A water supply pipe 21 is branched from a water supply main 20 provided in the duct 18 and connected to a fire hydrant device 16 .

  The mounting openings 19 are formed at intervals of 50 meters from the shoulder of the guard passage 14 to the side wall 14a, and the upper surface of the case of the fire hydrant 16 is exposed to the passage surface of the guard passage 14 at the mounting hole 19 The fire hydrant device 16 is embedded and installed so that the front surface faces the road surface of the road 15.

The duct 18 on the back side of the fire hydrant device 16 is an inspection work space, and an entrance 24 is provided in the monitoring staff passage 14 above the inspection work space, and the entrance 24 is closed by an openable grid lid 34 When checking 16, the grid lid 34 is opened, an inspector enters the inspection work space from the entrance 24, and the fire hydrant device 16 is checked from behind.

  For this reason, the case of the fire hydrant device 16 is provided with a back door 40 which can be opened and closed at the back opening, and the inspector who enters the inspection work space opens the back door 40 of the fire hydrant device 16 and installs it inside the case. Enables inspection of hoses with nozzles and valves including hydrant valves.

  A front panel 26 is fixed to the lower side of the front surface of the fire hydrant device 16, and a maintenance door 28 which can be opened and closed upward is provided on the upper side.

  An openable / closable nozzle door 36 is provided on the upper surface of the case facing the monitoring person passage 14 side of the fire hydrant device 16 so that the handle 38 can be opened upward by putting a hand on it. As shown in FIG. 3, when the nozzle door 36 is opened, the nozzle 44 comes out from the upper surface of the fire hydrant device 16 located on the shoulder of the monitoring staff passage 14 by the nozzle taking out mechanism and is taken out to the outside. It is possible to easily and easily withdraw the nozzle hose and extinguish the fire without requiring an opening operation.

  When the nozzle takeout mechanism of this embodiment is opened to turn the nozzle door 36 to the left, it is pulled by the wire 64 having one end connected to the nozzle door 36 and functions as a rotating member inside the fire hydrant 16. The holder 42 rotates upward and is taken out from the nozzle opening 46, and the nozzle 44 mounted at the tip of the hose is detachably held in the rotary oval holder 42, and the nozzle 44 is rotated by the rotation of the rotary oval holder 42. Is taken out outside.

  In addition, a hose guide 48 using a pipe frame is provided on the periphery of the nozzle opening 46, and the hose pulled out from the inside of the fire hydrant device 16 is guided by the hose guide 48 to prevent hose wear and reduce the hose pulling force. I am trying to

  Further, a notification device panel 30 and a fire hydrant operation panel 32 are disposed in the upper front of the fire hydrant device 16.

[Configuration of fire hydrant device]
(Front structure of fire hydrant device)
FIG. 4 is an explanatory view showing the fire hydrant device from the front. As shown in FIG. 4, the fire hydrant device 16 has a front panel 26 disposed and fixed on the lower side of the front opening of the housing 60, and a maintenance door 28 which can be opened and closed by a hinge 28a is provided on the upper side. The maintenance door 28 can be opened upward by putting a hand on the handle 28 b and removing the lock.

  The notification device panel 30 is disposed on the upper left side of the housing 60. The notification device panel 30 is provided with a red indicator light 50, a transmitter 52 and a response lamp 54. The red indicator light 50 is always on so that the installation location of the fire hydrant 16 can be seen from a distance. In case of fire, when the transmitter 52 is pressed and the push button switch is turned on, the transmission signal is sent to the fire receiver in the monitoring room and a fire alarm is issued, and the response signal is sent from the fire receiver accordingly, the response lamp Turn on 54.

The fire hydrant operation panel 32 is disposed on the upper right side of the housing 60. The fire hydrant operation panel 32 is provided with a fire hydrant open button 56 and a fire hydrant close button 58. When the fire hydrant open button 56 is pressed, the built-in electric fire hydrant valve is driven to open, while when the fire hydrant close button 58 is pressed, the fire hydrant valve Drive closed.

(Internal structure of fire hydrant device)
FIG. 5 is an explanatory view showing the internal structure of a fire hydrant apparatus having a nozzle takeout mechanism by a rotary holder, FIG. 6 is a plan view showing the internal structure of a fire hydrant apparatus having a nozzle takeout mechanism by a rotary holder, and FIG. It is explanatory drawing which showed the fire hydrant apparatus of the nozzle extraction state by a holder.

  A hose storage portion 70 and a valve storage portion 72 are provided in the housing 60 of the fire hydrant device 16. A hose bucket structure 76 is provided in the hose storage portion 70, and the hose bucket structure 76 partitions and forms a hose outlet 78 by two upper and lower two bucket frames. The hose bucket structure 76 defines a hose outlet on the back side with a similar bucket frame arrangement.

  A hose 80 is internally wound and stored so as to be right-handed when viewed from the front, and a nozzle 44 is attached to the tip of the hose 80, and a rotary oval holder of a nozzle takeout mechanism described later 42 is detachably held. The nozzle 44 is composed of a water discharge portion and a handle, and for example, switching between spray water discharge and rod-like water discharge is made possible by rotating an operation ring at the tip of the nozzle.

  In the valve storage portion 72 formed on the right side of the hose storage portion 70, the water supply valve 84 and the fire hydrant valve are connected to the piping system from the pipe connection port 82 connecting the water supply pipe branched from the water supply main in the duct to the hose 80. An automatic adjusting valve 88 and a maintenance device 90 are provided. The fire hydrant valve 86 of the present embodiment uses an electrically operated valve that is opened and closed by motor drive. Further, in front of the water supply valve 84, a pump activation button 75 used by a fireman is provided.

[Nozzle extraction mechanism]
As shown in FIG. 5 and FIG. 6, in the case 60 of the fire hydrant device 16, as a nozzle takeout mechanism, a rotary oval holder 42 functioning as a rotary holder so as to be freely rotatable by a rotary shaft 45 having a rotation center O is disposed. A holder fitting 62 is provided on the plate surface of the spheroid holder 42, and the nozzle 44 mounted on the tip of the hose 80 is detachably held by the holder fitting 62.

  A nozzle opening 46 is formed on the upper surface of the housing 60 opposite to the spheroid holder 42, and a nozzle door 36 provided with a handle 38 is rotatably provided at the nozzle opening 46 by a left rotation shaft 45. A wire 64 is connected between the tip inner side of the nozzle door 36 and the end on the opposite side of the rotation center O of the rotary oval holder 42. In addition, a hose guide 48 using a pipe frame is disposed on the periphery of the nozzle opening 46.

  When using a fire hydrant 16 due to a vehicle fire in a tunnel, use the handle 38 to open the nozzle door 36 provided on the upper surface of the case, which becomes the shoulder of the guard passage 14 of the fire hydrant 16 Do. The opening of the nozzle door 36 pulls the wire 64 to rotate the spheroid holder 42 counterclockwise around the rotation axis 45 of the rotation center O, and as shown in FIG. The nozzle 44 held in the rotary oval holder 42 by the holder 62 is taken out to the outside.

  Thus, the nozzle 44 taken out from the fire hydrant device 16 can be easily and easily taken out of the road 15 side or the monitor passage 14 side and the hose can be pulled out.

  When the nozzle 44 is taken out and the hose 80 is pulled out, pressing the fire hydrant opening button 56 provided on the fire hydrant operation panel 32 turns on the built-in switch and drives open the fire hydrant valve 86 using the motorized valve. In addition, the pump start signal is transmitted to the pump equipment to start the pump, the pressurized supply of the extinguishing water is continued, and the extinguishing water is discharged by the opening operation of the nozzle 44 to perform the extinguishing operation.

  When the fire extinguishing operation using the fire hydrant device 16 is finished, pressing the fire hydrant closing button 58 provided on the fire hydrant operation panel 32 turns on the built-in switch, and drives the fire hydrant valve 86 using the motorized valve closed. Also, a pump stop signal is sent to the pump equipment to stop the pump.

  In addition, after the hose 80 is drained as the restoration work of the fire hydrant device 16, the hose 80 is rewound into the hose bucket structure 76 while feeding the hose 80 from the nozzle opening 46 into the housing 60. In the rewinding operation of the hose 80, an operator enters the duct 18 behind the fire hydrant device 16 and opens the back door 40 of the fire hydrant device 16 to rewind the hose 80.

  In place of the spheroid holder 42 as a pivoting member provided in the nozzle takeout mechanism, a spheroid holder using an oblong plate member may be used.

[Nozzle takeout mechanism by hydraulic actuator]
FIG. 8 is an explanatory view showing an internal structure of a fire hydrant apparatus provided with a nozzle taking out mechanism operated by a hydraulic actuator, and FIG. 9 is an explanatory view showing a fire hydrant apparatus in a nozzle taking out state by the hydraulic actuator.

  As shown in FIG. 8, in the nozzle takeout mechanism of the present embodiment, four hydraulic actuators 94 are arranged so as to stand upward at the rectangular corner portion of the base supported by the pedestal 97 in the housing 60. The actuator 94 has a piston slidably inside the cylinder, and the rod 98 is taken upward from the piston.

  A nozzle holder 92 is disposed at the tip of the rod 98 taken out from the hydraulic actuator 94. The nozzle holder 92 arranges six pipe frames so as to form a rectangular hexahedron, arranges the holder door 93 on the upper surface of the nozzle holder 92, and mounts the holder fitting 62 on the mounting plate 100 standing up inside the nozzle holder 92. The nozzle 44 attached to the tip of the hose 80 is drawn in from the lower side and is detachably held.

  The hydraulic actuator 94 is connected to the pipe 95 branched from the middle of the pipe 85 connecting the hose 80, supplied with extinguishing water by opening the fire hydrant valve 86 to apply water pressure, and the nozzle holder 92 by the rod 98. It is possible to push it upwards.

  Further, for example, an automatic drain valve 96 is provided in the piping for the hydraulic actuator 94. The automatic drain valve 96 is closed when water pressure is applied, and is opened when the water pressure is lost, allowing the water actuator 94 to descend by draining. Instead of the automatic drain valve 96, an auto drip may be provided in combination with a check valve and an orifice that is closed when water pressure is applied.

  When a vehicle fire occurs in the tunnel and the fire hydrant device 16 of FIG. 8 is used, the fire hydrant opening button 56 provided on the fire hydrant operation panel 32 is pressed and operated. When the fire hydrant open button 56 is pressed, the built-in switch is turned on to open the fire hydrant valve 86 using the motor-operated valve and transmit a pump start signal to the pump facility to start the pump, thereby extinguishing water. Continue pressurized supply.

  When the fire extinguishing water is supplied to the water pressure actuator 94 by the opening drive of the fire hydrant valve 86, the rod 98 is pushed up by the water pressure to raise the nozzle holder 92 holding the nozzle 44, as shown in FIG. Take out above the fire hydrant device 16. Thus, the nozzle 44 taken out from the fire hydrant device 16 can be easily and easily taken out of the road 15 side or the monitor passage 14 side and the hose can be pulled out.

  When the fire extinguishing operation using the fire hydrant device 16 is finished, pressing the fire hydrant closing button 58 provided on the fire hydrant operation panel 32 turns on the built-in switch, and drives the fire hydrant valve 86 using the motorized valve closed. Also, a pump stop signal is sent to the pump equipment to stop the pump.

  As a result, the water pressure applied to the hydraulic actuator 94 disappears, and the automatic drainage valve 96 provided in the pipe 95 is opened. Therefore, when the nozzle holder 92 is pushed in when the rewinding operation of the hose 80 is completed, the hydraulic actuator 94 , And can be returned to the initial position shown in FIG.

  Although four hydraulic actuators 94 are provided in the embodiment of FIG. 8, the guide rods may be disposed at four locations where the hydraulic actuators 94 are provided, and a single hydraulic actuator may be disposed at the center thereof. good.

[An embodiment in which the hose storage portion and the nozzle takeout mechanism are separately arranged]
FIG. 10 is an explanatory view showing a fire hydrant device in which a hose storage portion and a nozzle takeout mechanism are separately disposed.

  As shown in FIG. 10, in the fire hydrant device 16 embedded and installed in the mounting port 19 of the wall surface 14a from the shoulder of the surveillance staff passage 14, for example, taking the embodiment of FIGS. The nozzle takeout mechanism holding the nozzle 44 is accommodated at 42. On the other hand, a hose storage portion 104 is formed below the floor portion 102 of the fire hydrant device 16, the drum 106 is rotatably supported by the hose storage portion 104, and the hose 80 is connected from the drum 106 through the hose opening 108 of the floor plate 102 The nozzle 44 is attached to the end of the hose.

In addition, valves including a water supply valve 84, a fire hydrant valve 86, an automatic adjustment valve 88, and a maintenance device 90 are installed inside the fire hydrant device 16, and a hose storage portion below the floor 102 from the secondary side of the maintenance device 90. The pipe 85 is drawn into the pipe 104 and connected to a rotary joint provided on the side of the rotary shaft of the drum 106 so that the hose 80 wound around the drum 106 can be supplied with extinguishing water.

By separately arranging the hose storage unit 104 from the fire hydrant device 16 in this manner, the horizontal width and depth of the fire hydrant device 16 embedded from the shoulder of the guard passage 14 to the side wall 14a can be reduced, thereby enabling downsizing and weight reduction. Do.

  FIG. 11 is an explanatory view showing a fire hydrant device in which a hose storage portion, a valve storage portion and a nozzle takeout mechanism are separately disposed.

As shown in FIG. 11, in the present embodiment, the valves disposed in the fire hydrant 16 in the embodiment of FIG. 10 are also separately disposed in the hose storage portion 104. That is, the water supply pipe 21 is drawn from the duct 18 through the floor portion 102 into the hose storage portion 104, and valves including the fire stop valve 86, the automatic adjustment valve 88 and the maintenance device 90 are installed between the drum 106 and the rotary joint. ing.

By separating and arranging the hose storage unit 104 and the valve storage unit from the fire hydrant device 16 in this manner, the width and depth of the fire hydrant device 16 embedded in the side wall 14 a from the shoulder of the surveillance officer passage 14 can be further reduced and miniaturized. And enables weight reduction.

  The fire hydrant device having the structure shown in FIGS. 10 and 11 is similarly applicable to a fire hydrant device provided with a nozzle takeout mechanism using the hydraulic actuator shown in FIGS. 8 and 9.

Further, in the embodiment of FIG. 11, the fire hydrant valve 86 using a motorized valve is disposed in the hose storage portion 104 , but as another embodiment, a manually operated fire hydrant valve not using a motorized valve is used. It is possible to arrange and open / close operation of the fire hydrant valve opening / closing lever provided in the case of the fire hydrant device 16 to the fire hydrant valve by wire connection and open / close by remote control. In this case, the fire hydrant valve opening and closing lever provided in the housing of the fire hydrant device 16 has, for example, an operation door provided on the front or upper surface of the housing, and the operating door is opened to operate the fire hydrant valve opening and closing lever inside the housing As well.

[Modification of the present invention]
(Fire extinguisher box)
Although the above-mentioned embodiment makes an example the fire hydrant device which does not install a fire extinguisher storage part in a row, you may make it connect a fire extinguisher storage part in a row.

(Water hydrant valve)
In the above embodiment, a fire hydrant valve using a motor-operated valve is taken as an example, but it may be a fire hydrant valve remotely operated by a fire hydrant valve opening / closing lever.
(Fire hydrant device)
Of the fire hydrant device shown in the above embodiment, for example, hoses and valves such as a fire hydrant valve incorporated in a housing, the configuration and arrangement of a notification device door, and other configurations are optional, and appropriate configurations are adopted. It is good.

(Others)
Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above embodiment.

10: Tunnel 12: Tunnel wall 14: Guard passage 14a: Side wall 15: Road 16: Fire hydrant device 17: Fire extinguisher box 18: Duct 19: Mounting port 20: Water supply main 21: Water supply pipe 22: Electric conduit 24: Inlet / outlet 25: handrail 26: front panel 28: maintenance door 30: notification device panel 32: fire hydrant operation panel 34: lattice lid 36: nozzle door 38: handle 40: back door 42: rotating oval holder 44: nozzle 45: rotating shaft 46 : Nozzle opening 48: Hose guide 50: Red indicator light 52: Transmitter 54: Response lamp 56: Fire hydrant opening button 58: Fire hydrant closing button 60: Housing 62: Holder fitting 64: Wire 70: Hose housing 72: Valves Storage part 75: Pump start button 76: Hose bucket structure 78: Hose outlet 80: hose 82: piping connection port 84: water supply valve 85, 95: piping 86: fire extinguishing The valve 88: the automatic control valve 90: maintenance device 92: the nozzle holder 93: Holder Door 94: hydraulic actuator 96: the automatic drain valve 97: trestle 98: Rod 100: Mounting plate

Claims (8)

A fire hydrant embedded part whose mounting port is opened on the side wall facing the road from the shoulder of the guard passage provided along the tunnel side wall,
A fire hydrant device having a nozzle extraction mechanism which is installed in the fire hydrant embedding part and accommodates a hose having a nozzle mounted at its tip in a housing, and which supports the nozzle so as to be freely put in and out of the housing;
In the in- tunnel fire hydrant installation, the nozzle extraction mechanism of the fire hydrant device is:
A nozzle door provided so as to be openable and closable at a nozzle outlet of an upper surface of the casing facing the monitoring person passage side;
A rotary holder which pivots the nozzle from the nozzle outlet to the outside to expose the nozzle upward in conjunction with an opening operation of the nozzle door;
A fire hydrant installation in a tunnel characterized by
The in-tunnel fire hydrant installation according to claim 1 , wherein the rotary holder is a pivoting member rotatably supported at one end and holding the nozzle at the other end.
The in-tunnel fire hydrant installation according to claim 2, wherein the rotary holder rotates in a state where the surface holding the nozzle is directed to the side wall facing the road.
A fire hydrant embedded part whose mounting port is opened on the side wall facing the road from the shoulder of the guard passage provided along the tunnel side wall,
A fire hydrant device having a nozzle extraction mechanism which is installed in the fire hydrant embedding part and accommodates a hose having a nozzle mounted at its tip in a housing, and which supports the nozzle so as to be freely put in and out of the housing;
In the in- tunnel fire hydrant installation, the nozzle extraction mechanism of the fire hydrant device is:
A nozzle holder which is provided freely out upward from the nozzle outlet of the housing,
An in-tunnel fire hydrant installation comprising a water pressure actuator operated by water pressure of fire extinguishing water supplied by an opening operation of a fire hydrant valve to raise and expose the nozzle holder from the nozzle outlet to the outside.
The in-tunnel fire hydrant installation according to claim 4, wherein the nozzle holder is
A holder main body in which a frame pipe is arranged in a rectangular hexahedron;
A door plate disposed on the upper surface of the holder body for opening and closing the nozzle outlet;
A holder fitting that detachably holds the nozzle inside the holder body;
A fire hydrant installation in a tunnel characterized by
5. The in-tunnel fire hydrant installation according to claim 4, wherein the water pressure actuator is opened when the water pressure of the fire extinguishing water falls below a predetermined value due to the closing of the fire hydrant valve and the fire water is discharged from the water pressure actuator. An in-tunnel fire hydrant installation comprising an automatic drainage mechanism for lowering the nozzle holder according to and storing the nozzle holder in the housing.
The in-tunnel fire hydrant installation according to claim 2 or 4, wherein a hose guide is provided around the opening of the nozzle outlet.
The in-tunnel fire hydrant installation according to claim 1, wherein the fire hydrant device has the nozzle takeout mechanism and the hose storage part separated from each other.

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