JP6670613B2 - Fire hydrant equipment in the tunnel - Google Patents

Description

  The present invention relates to a fire hydrant facility in a tunnel that pulls out a hose with a nozzle housed in an observer passage and discharges water.

  Conventionally, fire hydrant devices installed in tunnels such as expressways and motorways store hoses and valves with nozzles at their ends in the fire hydrant storage section of the housing with a fire hydrant door that can be opened. For example, two fire extinguishers are accommodated in a fire extinguisher accommodating section provided with a fire extinguisher door that can be opened and closed.

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

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

JP 2008-055024 A JP 2009-285126 A

  However, in the case of such a conventional fire hydrant device installed in a tunnel, the fire hydrant device was installed along the side wall of the tunnel facing the observer's passage, so that in the event of a fire due to a vehicle accident, the user was required to remove the fire inspector from the road surface. It is necessary to reach the fire hydrant device installed on the side wall of the tunnel beyond the aisle and open the fire hydrant door, pull out the hose and perform fire extinguishing work, because the fire hydrant device is installed at a high position away from the road surface In some cases, some people have to go up to the walkway to operate without being able to reach it.In addition, some walkway guards have handrails, which hinder the fire extinguishing work and are difficult to handle. There was a case.

  In order to solve this problem, the fire hydrant device should be embedded along the side wall of the observer passage facing the road in the tunnel, but if a vehicle fire occurs and the vehicle stops in front of the fire hydrant door, In such a case, the stopped vehicle may be in the way and the fire hydrant door cannot be opened to pull out the hose, or the operation of the fire hydrant device may be time-consuming.

  An object of the present invention is to provide a fire hydrant facility in a tunnel that can be easily and easily handled from the road side and the guards passage side.

(Fire hydrant equipment in the tunnel)
The present invention relates to a fire hydrant facility in a tunnel,
A warden road surface provided et the hydrant hatch passages in the tunnel,
A hose storage section in which a hose with a nozzle attached at the tip is freely pulled out and stored in a housing arranged so as to be able to move up and down with respect to the fire hydrant from the inside of the observer passage,
A water discharge control mechanism that controls the supply of fire fighting water to the hose;
Normal state monitors the hose housing section with closed extinguishing Hisen hatch holds the storage position inside the wardens passage down the hose storage unit, for opening the anti Hisen hatch by the supply of fire extinguishing water A lifting mechanism that rises and holds the exposed position on the road surface of the member passage,
It is characterized by having.

(Arrangement of elevation control mechanism and water discharge control mechanism)
Equipped with an elevating control mechanism that controls the supply of fire extinguishing water to the elevating mechanism ,
The water discharge control mechanism and the elevation control mechanism are installed in the management passage located under the floor slab of the tunnel ,
The elevating mechanism is installed at the lower part of the road surface of the observer passage .

(Double-sided hose drawer structure)
Hose housing section is opened the front and rear of the housing, while being held to rise to the exposure position by the elevating mechanism, it is possible to withdraw the hose from both the front and rear of the housing.

(Road plate on top of hose storage section)
In the hose storage section, a road surface plate is arranged on the upper surface of the housing ,
The road surface plate is larger than the opening of the fire hydrant elevating opening , and is normally closed so as to cover the opening .

(Connecting hose)
Between the hose and the water discharge control mechanism of the hose housing section is connected with the connection hose.

(Flexible joint)
Connection of the connecting hose for hose of the hose housing section, and or connection of the connecting hose for water discharge control mechanism is a flexible joint is used.

(Fire hydrant valve and its operation)
The water discharge control mechanism includes an operation switch or an operation lever for opening and closing the fire hydrant valve.

(Hydraulic actuator for lifting mechanism)
The lifting mechanism is
One or more hydraulic actuators for raising the hose housing by supplying fire extinguishing water and lowering the hose housing by draining fire extinguishing water;
A control valve for controlling the supply of fire extinguishing water to the hydraulic actuator,
A drain valve for draining fire extinguishing water from a hydraulic actuator,
By supplying the fire extinguishing water to the hydraulic actuator by controlling the opening of the control valve, the hose housing is raised, and by controlling the closing of the control valve, the fire extinguishing water is drained from the hydraulic actuator by opening the drain valve to lower the hose housing. A lifting operation switch that enables
Is provided.

(Fire extinguisher compartment)
The hose accommodating section integrally includes a fire extinguisher accommodating section in which the fire extinguisher is accommodated so as to be freely taken out from both the front surface and the rear surface.

(Ascent by operation of transmitter)
The lifting mechanism raises the hose storage section by operating the transmitter.

(Acoustic warning when rising)
The elevating mechanism sounds an audible alarm when the hose storage unit is raised.

(Box empty section of the guards passage)
The hose storage unit and the elevating mechanism are stored in a box emptying portion formed by hollowing out a portion from the road surface of the observer passage to the front wall via the road shoulder.

(Basic effects)
The present invention relates to a fire hydrant facility in a tunnel, in which a fire hydrant elevating port provided on a road surface of a watchman passage in the tunnel and a housing arranged to be able to move up and down with respect to the fire hydrant elevating port from inside the watchman passage, A hose storage section that houses a hose with a nozzle attached to it freely, a water discharge control mechanism that controls the supply of fire-fighting water to the hose, and a storage position inside the observer's passage by lowering the hose storage section during normal times closing the anti Hisen hatch holds in, provided with a lifting mechanism for holding the hose housing section risen to an exposed position on the road surface guards passage while opening an extinguishing Hisen hatch by the supply of fire extinguishing water Therefore, in the event of a vehicle accident involving a fire in the tunnel, when a predetermined switch is operated, the hose storage section housed in the observer passage is pushed up by the elevating mechanism, and the hose storage section is placed on the road surface of the observer passage. Out, without the need for opening operation of the fire hydrant door, fire extinguishing can be carried out easily and readily pull the nozzle with hose from the hose storage portion exposed on warden passage.

(Effect of the arrangement of the lifting control mechanism and the water discharge control mechanism)
Also includes a lift control mechanism for controlling the supply of extinguishing water to the lifting mechanism, water discharge control mechanism and the lifting control mechanism is installed in a management channel located in the floor layout paper tunnel, the lifting mechanism, warden since you so that installed in the lower portion of the road surface of the passage, the space to lift control mechanism into the inner space of the warden passage constrained and it is not necessary to provide a water discharge control mechanism, can easily be performed construction equipment or inspection And

(Effect by double-sided hose drawer structure)
Moreover, since the hose receiving section, opened at the front and rear of the housing, while being held to rise to the exposure position by the elevating mechanism, it is possible to withdraw the hose from both the front and back of the housing, The fire can be extinguished by simply and easily pulling out the hose with nozzle from both the road side and the observer passage.

(Effects of the road surface plate on the top of the hose storage section)
In addition, a road surface plate is disposed on an upper surface of the housing of the hose storage unit , and the road surface plate is larger than an opening of a fire hydrant elevating opening , and is normally closed so as to cover the opening. When the fire hydrant door is closed by storing the part, the road surface plate on the top of the housing securely closes the fire hydrant door, and the road surface plate is located beyond the periphery of the Even if a person rides on it, it can be reliably supported, and does not obstruct the passage of the observer passage at the time of inspection or evacuation.

(Effect of connecting hose)
In addition , since the hose of the hose storage unit and the water discharge control mechanism are connected by using a connection hose , even if the hose storage unit is separately arranged so as to be able to move up and down with respect to the fixedly installed water discharge control mechanism, The fire extinguishing water can be supplied from the water discharge control mechanism to the hose of the hose storage unit and discharged without being affected by the movement of the hose storage unit.

(Effect of flexible joint)
In addition, since the connection of the connection hose to the hose of the hose storage unit and / or the connection of the connection hose to the water discharge control mechanism is performed using a flexible joint, the movement of the connection hose accompanying the elevation of the hose storage unit is absorbed by the flexible joint. In addition, deformation of the hose itself and wear due to kink can be prevented.

(Effects of fire hydrant valve and its operation)
In addition, since the water discharge control mechanism is provided with an operation switch or an operation lever for opening and closing the fire hydrant valve, after the operation of exposing the hose storage section on the observer passage, pull out the hose with the nozzle, and operate the operation switch or the operation lever. The fire hydrant valve can be opened to start water discharge.

(Effects of hydraulic actuator of lifting mechanism)
The lifting mechanism includes one or more hydraulic actuators that raise the hose storage part by supplying fire extinguishing water and lower the hose storage part by draining fire extinguishing water, and a control valve that controls the supply of fire extinguishing water to the hydraulic actuator. A drain valve for draining fire extinguishing water from a hydraulic actuator, and a control valve opening control supplies fire extinguishing water to the hydraulic actuator to raise the hose storage section, and a control valve closing control opens the drain valve to operate the hydraulic actuator. And an elevating operation switch that allows the hose storage section to be lowered by draining the fire extinguishing water from the fire extinguishing water. Push up the hose storage section housed inside from the fire hydrant lift on the road surface to expose it on the road surface. It can be, there is no need to provide a separate driving source of the elevating mechanism, system configuration is simple, and enables the reduction of equipment costs.

(Effect of fire extinguisher storage section)
In addition, the hose storage unit is integrally provided with a fire extinguisher storage unit in which the fire extinguisher is removably stored from both the front and back sides.When a vehicle accident involving a fire occurs in the tunnel, the specified switch operation must be performed. When performed, the fire extinguisher storage part stored in the guards passage is pushed up by the elevating mechanism together with the hose storage part and exposed on the road surface of the guards passage, without requiring the fire extinguisher door opening operation, The fire extinguisher can be easily and easily taken out from the fire extinguisher storage part exposed on the observer passage to extinguish the fire. Further, the fire extinguisher can be easily and easily taken out from the road side and the observer passage to extinguish the fire.

(Effect of ascent by operation of transmitter)
Also, since the lifting mechanism raises the hose storage section by operating the transmitter, when the fire notification is performed by operating the transmitter provided on the notification device panel, the hose storage section is moved by the lifting mechanism in conjunction with this. It can be lifted and exposed on the road surface of the observer's passage, and the hose with the nozzle can be quickly pulled out to perform the fire extinguishing work.

(Effect of the sound alarm when rising)
In addition, the raising and lowering mechanism sounds an audible alarm when the hose storage section is raised, so that when the hose storage section is raised by the lifting mechanism and pushed up on the road surface of the observer's passage, attention is paid to people around it can do.

(Effect of the boxed part of the guards passage)
In addition, when all conduits and the like are arranged in the management passage, there is no duct at the lower part of the monitoring personnel passage, and the duct is filled with concrete. In this case, the hose storage section and the elevating mechanism are housed in a box-opening section formed by hollowing out a portion from the road surface of the monitor path to the front wall via the shoulder, so that the hose storage section and the lifting mechanism are connected to the monitor path. The space for accommodating the section and the elevating mechanism can be easily created, and the hose accommodating section and the elevating mechanism can be incorporated from the front road side.

Explanatory drawing showing the fire hydrant equipment installed in the shield tunnel Explanatory drawing showing the fire hydrant equipment in the tunnel from the road side Explanatory drawing showing the internal structure of fire hydrant equipment in a tunnel in cross section viewed from the road surface side Explanatory drawing showing the internal structure of the fire hydrant equipment in the tunnel in a cross section viewed from the side Explanatory drawing showing an embodiment of a water discharge control mechanism and a lift control mechanism provided in a control mechanism storage section installed in the observer passage Explanatory drawing showing a state in which the hose storage unit is raised by the lifting mechanism and exposed on the observer's passage in a cross section viewed from the road surface side Explanatory drawing showing the state where the hose storage section was raised by the lifting mechanism and exposed on the observer's passage in a cross-section viewed from the side Explanatory drawing showing the fire hydrant equipment in a tunnel containing a fire extinguisher from the road side Explanatory drawing showing the internal structure of a fire hydrant facility in a tunnel containing a fire extinguisher as viewed from the road surface side Explanatory drawing which showed other embodiment of the raising / lowering control mechanism which controls supply of fire-extinguishing water to a raising / lowering mechanism with the hydraulic actuator. Explanatory drawing showing the boxed part of the guards passage from the road side

[Overview of fire extinguishing equipment in tunnel]
FIG. 1 is an explanatory diagram showing fire hydrant equipment installed in a tunnel on a motorway. As shown in FIG. 1, a road 15 is provided in a tunnel 10 constructed by a shield method by being partitioned by a floor slab 18 covered by a cylindrical tunnel wall 12. The road 15 has two lanes in one direction.

  An observer passage 14 is provided along the tunnel wall 12 on the left side of the road 15. Further, the lower side of the floor slab 18 on which the road 15 is formed is divided into a plurality of sections in the longitudinal direction of the tunnel. For example, a section located below the guard path 14 is used as a management path 20, The management passage 20 is used as an emergency evacuation passage when a fire occurs in the tunnel.

  The fire hydrant equipment 16 is arranged in the internal space below the monitoring personnel passage 14 and in the management passage 20. In the fire hydrant equipment 16, a road surface plate serving as an upper surface of the hose storage portion 44 is located on the road surface of the monitor walkway 14, and a fire hydrant sign plate is provided on a front wall 14a facing the road 15 of the monitor walkway 14. And an operation unit are arranged. A fire extinguisher box 17 is embedded and installed adjacent to the fire hydrant equipment 16. The fire hydrant equipment 16 and the fire extinguisher box 17 are installed every 50 meters in the longitudinal direction of the tunnel.

  The inner space below the observer passage 14 is used as a duct 22, and a conduit 23 and the like are laid behind the duct 22. A water supply main pipe 24 is installed in a control passage 20 below the floor of the observer passage 14 used as a duct 22, and a part of equipment of the fire hydrant equipment 16, for example, a control mechanism provided with valves and the like. Are disposed in the management passage 20.

  In addition, since the internal space of the observer passage 14 can be used as an inspection work space for the fire hydrant equipment 16, an openable doorway (not shown) is provided in the upper monitor passage 14 to check the fire hydrant equipment 16. Inspectors are allowed in and out.

[Fire hydrant installation structure]
FIG. 2 is an explanatory view showing the fire hydrant equipment in the tunnel from the road side, FIG. 4 is an explanatory view showing the internal structure of the fire hydrant equipment in the tunnel in a cross section viewed from the road surface side, and FIG. 5 is an internal structure of the fire hydrant equipment in the tunnel. It is explanatory drawing shown by the cross section seen from the side surface.

(External structure of fire hydrant equipment)
As shown in FIG. 2, the main part of the fire hydrant equipment 16 is installed in an internal space below the floor of the guard person passage 14 provided with the handrail 40, and the monitor person passage 14, which is a place where the fire hydrant equipment 16 is installed, is provided. At the upper part of the front wall 14a facing the road, a notification device panel 28 having a fire hydrant door 26 and an operation box 35 is installed, and the fire hydrant door 26 and the notification device panel 28 are connected to each other as shown in FIG. It is attached to the front of an operation box 35 embedded in 14a.

The fire hydrant door 26 is mounted to be openable and closable downward around a lower hinge 26a, and can be unlocked and opened by pulling the handle 27 toward the user. A water tap 90 having a hose connection port and a pump start switch 92 are provided inside the operation box 35 closed by the fire hydrant door 26 as shown by a dotted line. Therefore, in the event of a vehicle accident involving a fire, the fire brigade opens the fire hydrant door 26, connects the fire hose to the hydrant 90, activates the fire extinguishing pump by operating the pump activation switch 92 , and performs fire extinguishing activities. I have to.

  The notification device panel 28 is provided with a red indicator light 30, a transmitter 32, and a response lamp 34. The red indicator light 30 is always on 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 32 is pressed and the push button switch is turned on, a transmission signal is transmitted to the fire receiver in the monitoring room and a fire alarm is issued, and in response to this, a response signal is transmitted from the fire receiver and a response lamp is output. 34 is turned on.

In addition, the notification device panel 28 is provided with an up switch 36a and a down switch 36b for operating the up and down operation of the hose storage section 44 of the fire hydrant equipment 16 arranged in the observer passage 14.

Further, the handrail 40 is not provided in a portion of the guards passage 14 where the fire hydrant equipment 16 is installed, and the operation of the hose storage portion 44 which rises from the inside and is exposed on the road surface of the guards passage 14 is obstructed. I try not to be.

  Note that the panel portion of the notification device panel 28 where the up switch 36a and the down switch 36b are arranged can be operated from both the road 15 side and the supervisor path 14, so that the panel section is inclined with respect to the shoulder portion of the supervisor path 14. May be arranged.

(Structure of fire hydrant equipment installed in internal space)
As shown in FIGS. 3 and 4, on the road surface corresponding to the installation location of the fire hydrant equipment 16 in the observer passage 14, a rectangular fire hydrant elevating opening 42 is opened. A step 42a is formed.

The hose storage section 44 of the fire hydrant equipment 16 is arranged to be able to move up and down from the lower part of the fire hydrant elevating opening 42 . The hose accommodating portion 44 includes a box-shaped housing 48 opened on the front and back surfaces, and four frame pipes 52 are arranged in the front and back openings of the housing 48 to form a hose outlet 55 therebetween. ing. Inside the hose accommodating part 44, a hose 54 having a nozzle 56 attached to the tip is housed in a state of being wound inside, and a nozzle 56 attached to the hose tip is arranged in a central part of the hose 54 wound inside. The nozzle 56 can be taken out from both the front surface and the back surface of the nozzle.

  A water discharge switch 38a and a water discharge stop switch 38b for opening and closing a remote fire hydrant valve using an electric valve provided in a control mechanism storage unit 45 disposed in the management passage 20 are provided in the hose storage unit 44. Is provided.

  The hose storage section 44 is supported by a lifting mechanism 46 so as to be able to move up and down. The elevating mechanism 46 is provided with four hydraulic actuators 60 standing upright at four corners opposite to the corners of the rectangular bottom of the hose storage part 44, and the hydraulic actuator 60 is connected to a piston slidably provided in a cylinder cylinder. The rod is taken out upward, and the tip of the piston rod is fixed to the bottom of the hose storage section 44.

  A control mechanism housing part 45 is arranged in the management passage 20 below the internal space in which the elevating mechanism 46 is arranged, and the control mechanism housing part 45 is supplied with fire extinguishing water to the hose 54 of the hose housing part 44. A water discharge control mechanism for discharging water and a lift control mechanism for driving the lift mechanism 46 to move up and down are provided.

  A branch pipe 24a branched from the water supply main pipe 24 is connected to the control mechanism storage section 45, and fire extinguishing water supplied to the water supply main pipe 24 from a fire extinguishing pump facility is introduced. Further, the branch pipe 24a is branched to the upper part and connected to the water tap 90 shown in FIG.

  The piping from the water discharge control mechanism incorporated in the control mechanism storage section 45 is connected to a flexible joint 63 serving as a hose connection port of the hose storage section 44 via a connection hose 62. The connecting hose 62 has a hose length having a margin necessary for connection when the hose storage unit 44 is held at an exposed position where the hose storage unit 44 is pushed up and exposed from the fire hydrant elevating opening 42 of the observer passage 14 by the elevating mechanism 46, As a result, even if the hose storage section 44 moves up and down with respect to the pipe on the fixed side, the hose storage section 44 can move without the connection hose 62 coming off. In addition, the movement of the connecting hose 62 caused by the elevating operation is absorbed by the movement of the flexible joint 63.

  Further, a pipe for supplying and draining fire extinguishing water is connected to a hydraulic actuator 60 of the lifting mechanism 46 from a lifting control mechanism built in the control mechanism storage unit 45.

  The number of hydraulic actuators 60 provided in the elevating mechanism 46 can be set to an appropriate number as needed. For example, a hydraulic actuator having a predetermined diameter having a pushing force corresponding to the weight of the hose storage portion 44 is provided at the center. Alternatively, three hydraulic actuators 60 having a total lifting force corresponding to the weight of the hose housing portion 44 may be arranged in a triangle.

  In addition, the connection between the hose storage section 44 and the control mechanism storage section 45 is made by connecting the inside of the observer passage with the connection hose 62 and the management passage 20 side with the pipe. The spaces may be directly connected by a connecting hose. Also in this case, one or both of the connection of the connection hoses to the hose storage section 44 side and the control mechanism storage section 45 are connected by a flexible joint.

(Water discharge control mechanism)
FIG. 5 is an explanatory diagram showing an embodiment of the water discharge control mechanism and the elevation control mechanism provided in the control mechanism storage section installed in the observer passage.

  As shown in FIG. 5, the water discharge control mechanism 64 is connected to a remote fire hydrant valve 70 using an electric valve by drawing in the branch pipe 24a from the water supply main pipe, and a manual fire hydrant valve 72 is connected in parallel with the remote fire hydrant valve 70. Have been. A pressure regulating valve 74 is connected after the remote fire hydrant valve 70, and the secondary side of the pressure regulating valve 74 is connected to the hose accommodating section 44 via the connecting hose 62 as shown in FIG. 3. Further, an automatic drain valve 76 is connected to the secondary side of the pressure regulating valve 74.

The remote fire hydrant valve 70 is opened when the water discharge switch 38a provided in the hose storage section 44 shown in FIG. 3 is operated, and fire extinguishing water is supplied to the hose storage section 44 side.
In addition, when the water discharge stop switch 38b provided in the hose storage section 44 shown in FIG. 3 is operated during the water discharge operation, the hose is closed and the fire extinguishing water supply to the hose storage section 44 is stopped.

  Note that the fire hydrant valve 70 may not be an electric valve, but may be provided with a fire hydrant valve opening / closing lever in the hose storage section 44 and connected by a link wire, and the fire hydrant valve may be opened / closed by remote operation by operating the fire hydrant valve opening / closing lever. .

(Elevation control mechanism)
As shown in FIG. 5, the elevation control mechanism 66 is connected to a remote control valve 78 using an electric valve by drawing in the branch pipe 24a from the water supply main pipe, and a manual control valve 80 is connected in parallel with the remote control valve 78. Have been. The secondary side of the remote control valve 78 is connected to the hydraulic actuator 60 shown in FIG. 4 via a pipe via an automatic pressure regulating valve 81, a check valve 82 and an orifice 83. A drain valve 84 is connected to the primary side of the orifice 83 .

The automatic pressure regulating valve 81 can adjust the set pressure by adjusting the spring load, and can adjust the rising speed of the hose housing section 44 by the hydraulic actuator 60 by changing the set pressure.

  In the normal monitoring state, the remote control valve 78, the manual control valve 80, and the drain valve 82 are closed, and since the fire extinguishing water is not supplied to the hydraulic actuator 60 of FIG. 3, the piston of the hydraulic actuator 60 is at the lowest point shown in the figure. The hose storage unit 44 is housed in the interior space of the observer passage 14, and the fire hydrant lift port 42 is closed by the road surface plate 50 of the hose storage unit 44.

  In the event of a fire due to a vehicle accident in the tunnel, opening the remote control valve 78 is performed by operating the lift switch 36a of the notification device panel 28 shown in FIG. 2, and the fire extinguishing water is supplied to the hydraulic actuator 60 through the orifice 83. The hose is supplied and pushes up the piston in the cylinder to raise the hose storage section 44 via the piston rod.

In this case, since the amount of fire extinguishing water squeezed by the orifice 83 is supplied to the hydraulic actuator 60, the hose storage section 44 is pushed up at a slow predetermined speed determined by the adjustment pressure of the automatic pressure regulating valve 81 and the orifice 83. Thus, it is exposed on the observer passage 14 and stopped and held at the position where the full stroke is reached.

  When the hose storage section 44 exposed and held on the observer passage 14 is stored, when the lowering switch 36b of the hose storage section 44 shown in FIG. 2 is operated, the closing control of the remote control valve 78 is performed, and the water pressure actuator is controlled. The supply of fire extinguishing water to 60 is stopped. When the drain valve 84 is opened in this state, the fire extinguishing water is drained from the hydraulic actuator 60, and the hydraulic actuator 60 of the lifting mechanism 46, which receives the weight of the hose storage unit 44, descends at a slow predetermined speed determined by the orifice 83. Then, the hose accommodating portion 44 is accommodated in the fire hydrant elevating opening 42.

[Operation of fire hydrant equipment]
FIG. 6 is an explanatory view showing a state in which the hose storage unit is lifted up by the elevating mechanism and exposed to the observer passage in a cross section viewed from the road side, and FIG. It is explanatory drawing shown in the cross section seen from the side, the state exposed on the passage.

(During normal monitoring)
At the time of normal monitoring when a vehicle is passing through the road of the tunnel 10 shown in FIG. 1, the hose storage section 44 of the fire hydrant equipment 16 stores the fire extinguishing water from the elevation control mechanism 66 as shown in FIGS. Is stopped, the hydraulic actuator 60 of the elevating mechanism 46 positions the piston at the lowest point, whereby the elevating mechanism 46 stores the hose storage unit 44 in the internal space of the observer passage 14, and The road surface plate 50 on the upper surface of the body 48 is pressed against and supported by the step portion 42 a of the fire hydrant elevating port 42, and even if the fire hydrant equipment 16 is installed in the observer passage 14, the traffic of the person passing through the observer passage 14 is not restricted. It does not prevent or pose any danger.

(In case of fire)
On the other hand, when a vehicle accident involving a fire occurs in the tunnel 10, the user goes to the fire hydrant facility 16 near the fire occurrence location and pushes the transmitter 32 of the notification device panel 28 shown in FIG. And the completion of the report to the monitoring room is confirmed by the lighting of the response lamp 34.

Subsequently, in order to perform the fire extinguishing work, the raising switch 36a provided on the notification device panel 28 is pressed to be turned on. When the raising switch 36a is turned on, an open control signal is sent to the remote control valve 78 of the raising and lowering control mechanism 66, and the remote control valve 78 is controlled to open, so that the fire extinguishing water from the branch pipe 24a is transmitted from the remote control valve 78. The piston is raised by the fire extinguishing water supplied to the hydraulic actuator 60 of the elevating mechanism 46 via the orifice 83 and supplied into the cylinder, and pushes up the hose housing portion 44 supported via the piston rod.

  For this reason, the road surface plate 50 closing the fire hydrant lifting / lowering opening 42 of the observer passage 14 is lifted up, and the hose storage portion 44 stored inside slowly appears from the road surface and rises to the exposed position shown in FIGS. 6 and 7. To stop and hold this exposure position.

  When the hose storage section 44 is held in an exposed state on the observer passage 14 in this manner, the user can easily and easily take out the hose 56 by taking out the nozzle 56 from the road side through the front opening of the housing 48. 54 can be withdrawn.

  Subsequently, when the user presses and turns on the water discharge switch 38a provided in the exposed hose storage section 44, an open control signal is output to the remote fire hydrant valve 70 of the water discharge control mechanism 64, and the remote fire hydrant valve 70 is opened. The fire-extinguishing water at the specified pressure adjusted by the pressure adjusting valve 74 is supplied to the hose 54 via the connecting hose 62, and the fire extinguishing activity can be performed by discharging water from the nozzle 56.

  On the other hand, when the user performs the fire extinguishing work from the side of the monitoring personnel passage 14, the nozzle 56 is easily and simply taken out from the back opening of the housing 48 in the hose storage part 44 exposed and held on the monitoring personnel passage 14. The fire extinguishing operation can be performed by easily pulling out the hose 54.

  When the fire is extinguished and the fire extinguishing operation is completed, when the water discharge stop switch 38b provided in the hose storage section 44 is pressed and turned on, a close control signal is output to the remote fire hydrant valve 70 of the water discharge control mechanism 64, and the remote fire hydrant is provided. The valve 70 is closed, and the discharge of water from the nozzle 56 can be stopped.

In the recovery work after the fire extinguishing work is completed, the hose 54 is drained, and then the hose 54 is housed in an inner winding state in the hose housing part 44 exposed and held on the observer passage 14. . Subsequently, by turning on the down switch 36b provided on the notification device panel 28, a close control signal is sent to the remote control valve 78 of the lift control mechanism 66 to close the same.

In this state, when the clerk enters the management passage 20 and opens the drain valve 84 of the elevation control mechanism 66 provided in the control mechanism storage section 45, the fire extinguishing water is drained from the hydraulic actuator 60, and the weight of the hose storage section 44 is reduced. Then, the elevating mechanism 46 descends, the road surface plate 50 descends to a position where it hits the step portion 42a of the fire hydrant elevating port 42, stops, and the hose accommodating portion 44 is accommodated in the internal space of the observer passage 14. .

The drain valve 84 is a remote drain valve using an electric valve, and the remote control valve 78 is controlled to be closed by turning on the down switch 36b, and then the remote drain valve is controlled to be opened. The hose storage section 44 may be lowered to the storage state by remote control without operating the drain valve 84 .

  If the hose storage section 44 is not exposed on the observer passage 14 even when the raising switch 36a is operated due to a failure of the lifting mechanism 46 or the like, the fire hydrant door 26 is opened to take out the nozzle 56 and pull out the hose 54. It is possible to ensure high fail-safety.

(Inspection of fire hydrant equipment)
When inspecting the fire hydrant equipment 16, a staff member may perform an operation necessary for the inspection from the side of the monitoring personnel passage 14. Inspection work of the elevating mechanism 46 and the control mechanism housing part 45 is performed by a staff member opening an inspection door provided on the road surface of the monitoring personnel passage 14 and entering the inside.

  Since the fire hydrant door 16 is not opened on the road 15 side or operated from the road side by the inspection work of the fire hydrant equipment 16, there is no need to restrict the traffic of the vehicle in the inspection of the fire hydrant equipment. Inspection work can be done safely without it.

[Fire hydrant equipment with fire extinguisher storage]
FIG. 8 is an explanatory view showing the fire hydrant equipment in the tunnel storing the fire extinguisher from the road side, and FIG. 9 is an explanatory view showing the internal structure of the fire hydrant equipment in the tunnel storing the fire extinguisher in cross section as viewed from the road surface side. .

  As shown in FIGS. 8 and 9, in the fire hydrant equipment 16 of the present embodiment, a fire extinguisher storage part 94 is integrally formed on the left side of the hose storage part 44, and for example, two fire extinguishers 96 are arranged side by side in the depth direction. doing.

The housing 48 is divided into a hose storage section 44 and a fire extinguisher storage section 94. The fire extinguisher storage section 94 is open on both the front and back surfaces, similarly to the hose storage section 44, and is raised by the lifting mechanism 46. When the fire extinguisher 96 is exposed and held on the observer passage 14, the fire extinguisher 96 can be taken out from both the road 15 and the observer passage 14 to perform the fire extinguishing operation.

[Other Embodiments of Lift Control Mechanism]
FIG. 10 is an explanatory view showing another embodiment of the lifting control mechanism for controlling the supply of fire extinguishing water to the lifting mechanism together with the hydraulic actuator.

As shown in FIG. 10, the lifting mechanism of the present embodiment is provided with a single hydraulic actuator 60. The hydraulic actuator 60 is provided with a piston 65 slidably provided in a cylinder 61 and a lower and upper cylinders. The piston rod 67 extends upward from the piston 65.

  The elevation control mechanism 66 is connected to a remote control valve 78 using an electric valve for a branch pipe 24a from the water supply main pipe, and a manual control valve 80 is connected in parallel with the remote control valve 78. The secondary side of the remote control valve 78 is connected to a port a of a four-way ball valve 86 via a check valve 82 and a needle valve 85.

  The four-way ball valve 86 has ports a, b, c, and d, and is switched and driven by a motor. At the first switching position, the ports a, b are connected and the ports c, d are connected. Further, when the four-way ball valve 86 is switched to the second position, the ports a and c are communicated and the ports b and d are communicated as shown in the four-way ball valve 86a.

  The boat b of the four-way ball valve 86 is connected to the lower cylinder chamber of the hydraulic actuator 60, the port c is connected to the upper cylinder chamber of the hydraulic actuator 60, and the port d is drained through the needle drain valve 88. Connected to the side.

  The needle valve 85 and the needle drain valve 88 can adjust the flow rate at the time of opening by the needle, and can set the rising speed and the falling speed of the hydraulic actuator 60 arbitrarily.

  The operation of the elevation control mechanism 66 in FIG. 10 is as follows. In the event of a fire due to a vehicle accident in the tunnel, when the raising switch 36a of the notification device panel 28 shown in FIG. 2 is operated, the remote control valve 78 is opened and the four-way ball valve 86 is set to the first switching position. The ports are switched so that ports a and b are communicated and ports c and d are communicated.

Therefore, the fire extinguishing water from the branch pipe 24a is supplied to the lower cylinder chamber of the hydraulic actuator 60 through the ports a and b of the remote control valve 78, the check valve 82, the needle valve 85, and the four-way ball valve 86. You. At this time, the upper cylinder chamber of the hydraulic actuator 60 communicates with the drain side through the ports c and d of the four-way ball valve 86 and the needle drain valve 88, so that the piston 65 rises and the piston rod 67 moves through the piston rod 67. As a result, the hose storage portion 44 is raised and is exposed on the observer passage 14.

  When the hose storage section 44 exposed and held on the observer passage 14 is stored, the lowering switch 36b of the hose storage section 44 shown in FIG. 3 is operated to move the four-way ball valve 86 to the second position 86a. And the ports a and c are communicated and the ports b and d are communicated.

For this reason, the fire extinguishing water from the branch pipe 24a is supplied to the cylinder chamber above the hydraulic actuator 60 through the ports a and c of the remote control valve 78, the check valve 82, the needle valve 85, and the four-way ball valve 86. . At this time, the lower cylinder chamber of the hydraulic actuator 60 is communicated with the drain side through the ports b and d of the four-way ball valve 86 and the needle drain valve 88. For this reason, the piston 65 descends, and the hose storage section 44 is stored in the observer passage 14 via the piston rod 67.

[Boxless structure of the guards passage]
FIG. 11 is an explanatory diagram showing the box-extracted portion of the guard path from the road side. In the present embodiment, the lower part of the observer passage 14 has no duct but is buried with concrete, and all conduits and the like are arranged in the management passage.

  As shown in FIG. 11, a box-opened portion 25 is formed in advance in such a guard path 14, in which a portion extending from the road surface of the guard path 14 to the front wall via the shoulder is formed in a box shape. The hose storage section 44 and the elevating mechanism 46 shown in FIGS. 3 and 4 can be incorporated and installed from the front side, which is on the road 15 side, with respect to the box emptying section 25, thereby facilitating the construction work.

[Modification of the present invention]
(Elevating mechanism)
In the above embodiment, an elevating mechanism for directly elevating and lowering the hose accommodating portion by a hydraulic cylinder is taken as an example. However, another mechanism, for example, a pantograph type elevating mechanism may be used.
(Fire hydrant device)
The hoses and the valves such as the fire hydrant valves of the fire hydrant equipment described in the above embodiment, the configuration and arrangement of the notification device, and other configurations are arbitrary, and an appropriate configuration may be adopted.

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

10: Tunnel 12: Tunnel wall 14: Observer walkway 14a: Front wall 15: Road 16: Fire hydrant equipment 17: Fire extinguisher box 18: Floor slab 20: Management passage 22: Duct 23: Conduit 24: Water supply main 24a : Branch pipe 25: box emptying part 26: fire hydrant door 28: reporting device panel 30: red indicator light 32: transmitter 34: response lamp 35: operation box 36 a: up switch 36 b: down switch 38 a: water discharge switch 38 b: water discharge stop Switch 40: Handrail 42: Fire hydrant elevating port 42a: Step 44: Hose storage part 45: Control mechanism storage part 46: Elevating mechanism 48: Housing 50: Road surface plate 52: Frame pipe 54: Hose 55: Hose outlet 56 : Nozzle 60: Water pressure actuator
61: cylinder 62: connecting hose 63: flexible joint 64: water discharge control mechanism 65: piston 66: elevating control mechanism 67: piston rod 70: remote fire hydrant valve 72: manual fire hydrant valve 74: pressure regulating valve 76: automatic drain valve 78: Remote control valve 80: Manual control valve 81: Automatic pressure regulating valve 82: Check valve 83: Orifice 84: Drain valve 85: Needle valve 86: 4-way ball valve 88: Needle drain valve 90: Water tap 92: Pump start switch 94 : Fire extinguisher storage section 96: Fire extinguisher

Claims (13)

A fire hydrant lift on the road surface of the guards passage in the tunnel,
A hose storage section in which a hose equipped with a nozzle at its tip is housed so as to be able to be pulled out from the inside of the observer passage so as to be movable up and down with respect to the fire hydrant elevating port,
A water discharge control mechanism for controlling the supply of fire extinguishing water to the hose,
With the normal closing said anti Hisen hatch holds the storage position inside the wardens passage descends the hose receiving section, opens the extinguishing Hisen hatch by the supply of the extinguishing water An elevating mechanism that raises and holds the hose storage unit at an exposed position on the road surface of the observer passage,
A fire hydrant facility in a tunnel, comprising:
In the fire hydrant equipment in a tunnel according to claim 1 ,
Comprises a lifting control mechanism for controlling the supply of the extinguishing water to the lifting mechanism,
The water discharge control mechanism and the elevation control mechanism are installed in a management passage located under a floor slab of the tunnel ,
The fire hydrant equipment in a tunnel, wherein the elevating mechanism is installed at a lower portion of a road surface of the observer passage .
In tunnel fire hydrant equipment according to claim 1 or 2, wherein the hose receiving section, in a state in which the front and rear of the housing is open, is held raised to the exposed position by the elevating mechanism, the tunnel hydrant equipment, characterized in that from both the front and rear of the housing are possible withdrawal of the hose.
In the fire hydrant equipment in a tunnel according to any one of claims 1 to 3 ,
The hose receiving part, the road surface plate is disposed on the upper surface of the housing,
The road surface plate, the larger than the opening of the hydrant hatch, tunnel fire hydrant equipment, characterized by closing normally so as to cover the opening when.
In tunnel fire hydrant installation according to any one of claims 1 to 4, between the hose and the water discharge control mechanism of the hose receiving section, a tunnel, characterized in that connected with the connection hose Fire hydrant equipment.
In tunnel fire hydrant equipment according to claim 5, connection of the connecting hose for hose of the hose storage unit, and also, connect the connecting hose to said water discharge control mechanism that flexible joints have been used Characteristic tunnel hydrant equipment.
7. The fire hydrant equipment in a tunnel according to claim 1 , wherein the water discharge control mechanism includes an operation switch or an operation lever for opening and closing a fire hydrant valve.
In the fire hydrant equipment in a tunnel according to any one of claims 1 to 7, the lifting mechanism raises the hose storage section by supplying fire extinguishing water, and lowers the hose storage section by discharging the fire extinguishing water. A fire hydrant facility in a tunnel, comprising one or more hydraulic actuators.
In the fire hydrant equipment in a tunnel according to claim 8 ,
The lifting mechanism ,
A control valve for controlling the supply of fire extinguishing water to the hydraulic actuator,
A drain valve for draining fire extinguishing water from the hydraulic actuator,
Supplying fire extinguishing water to the hydraulic actuator by opening control of the control valve to raise the hose storage section, and draining fire extinguishing water from the hydraulic actuator by closing the control valve and opening the drain valve. An elevating operation switch that allows the hose storage unit to be lowered,
A fire hydrant facility in a tunnel, comprising:
The fire hydrant equipment in a tunnel according to any one of claims 1 to 9 , wherein the hose storage unit integrally includes a fire extinguisher storage unit in which a fire extinguisher is stored so as to be freely taken out from both a front surface and a rear surface. Fire hydrant equipment inside the tunnel.
The fire hydrant equipment in a tunnel according to any one of claims 1 to 10 , wherein the lifting mechanism raises the hose storage part by operating a transmitter.
In tunnel fire hydrant installation according to any one of claims 1 to 11, wherein the lifting mechanism, tunnels hydrant equipment for causing sounding the audible alarm when rise of the hose storage unit.
In the fire hydrant equipment in a tunnel according to any one of claims 1 to 12, the hose storage portion and the elevating mechanism are formed by hollowing out a portion from a road surface of the observer passage to a front wall via a road shoulder. A fire hydrant device in a tunnel, wherein the fire hydrant device is housed in a box opening.

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