JP2017127418A - Fire hydrant equipment in tunnel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide fire hydrant equipment in a tunnel that can be simply and easily handled from a road side and a watchman passage side.SOLUTION: A hose storage part 44 in which a hose 54 with a nozzle 56 attached to the tip is stored so as to be freely drawn out in an inwardly wound state is arranged so as to be freely elevated and lowered, to a fire hydrant hatchway 42 opened on a road surface of a watchman passage 14 provided along a tunnel side wall. An elevating and lowering mechanism 46 equipped with a hydraulic actuator 60 is normally at a position to lower the hose storage part 44 and close the fire hydrant hatchway 42 of the watchman passage 14. In a case of fire, it supplies fire extinguishing water to the hydraulic actuator 60 by an operation of an elevating and lowering switch, and elevates the hose storage part 44 to a position where it is exposed on the watchman passage 14 so that the hose 54 with the nozzle 56 is drawn out from the exposed hose storage part 44 and water discharge work can be conducted.SELECTED DRAWING: Figure 3

Description

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

  Conventionally, fire hydrant devices installed in tunnels such as expressways and automobile roads store hoses and valves equipped with nozzles at the tips in the fire hydrant storage part of a housing with an openable fire hydrant door. For example, two fire extinguishers are housed in a fire extinguisher housing section having a fire extinguisher door that can be freely opened and closed.

  Such a fire hydrant apparatus is installed at intervals of, for example, 50 meters along a side wall facing a supervisor passage provided in the tunnel. The supervisor 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 devices including fire hydrants installed safely in the tunnel without hindering vehicle traffic in the tunnel. It is said.

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

JP 2008-055024 A JP 2009-285126 A

  However, in such a conventional fire hydrant device installed in the tunnel, it was installed along the tunnel side wall facing the observer passage, so that when a fire caused by a vehicle accident occurred, the user could It is necessary to reach out to the fire hydrant device installed on the side wall of the tunnel beyond the passage, open the fire hydrant door, pull out the hose to perform fire extinguishing work, and the fire hydrant device is installed at a high position away from the road surface Some people may have to go up and operate the guard passage without reaching their hands, and some guard passages are equipped with handrails that interfere with fire fighting operations and are difficult to handle. There was a case.

  In order to solve this problem, a fire hydrant device may be embedded along the side wall of the observer's passage facing the road in the tunnel. However, when a vehicle fire occurs, the vehicle stops before the fire hydrant door. If this is the case, the stopped vehicle may get in the way and the fire hydrant door cannot be opened to pull out the hose, or it may take time to operate the fire hydrant device.

  An object of this invention is to provide the fire hydrant installation in a tunnel which can be easily and easily handled from the road side and the supervisor channel | path side.

(Fire hydrant equipment in the tunnel)
The present invention provides a fire hydrant facility in a tunnel,
A fire hydrant elevator opening on the road surface of the observer passage provided along the side wall of the tunnel;
A hose storage part that is arranged to be movable up and down with respect to the fire hydrant elevating port from the inside of the supervisor passage, and in which a hose with a nozzle attached to the tip is housed in an internally wound state so as to be freely drawn out in a box-shaped housing;
A water discharge control mechanism that is installed in the interior space of the monitoring staff passage and supplies the water for fire extinguishing to the hose of the hose storage part by releasing the fire hydrant valve;
It is installed in the interior space of the supervisor passage, and normally operates by supplying fire-fighting water when the control valve is opened by lowering the hose compartment to hold the fire hydrant elevator in the supervisor passage. An elevating mechanism that raises and holds the hose storage portion to an exposed position on the monitoring person passage,
Is provided.

(Arrangement of lift control mechanism and water discharge control mechanism)
A lift control mechanism and a water discharge control mechanism for controlling the supply of fire-extinguishing water to the lift mechanism are installed in a management passage located under the floor slab.

(Double-sided hose drawer structure)
The hose storage portion has a structure in which a hose can be pulled out from both the front surface and the back surface in a state in which a box-shaped housing is opened on the front surface and the back surface and is lifted and held at an exposed position by an elevating mechanism.

(Road plate on the top surface of the hose housing)
The hose storage section has a road surface plate disposed on the upper surface of the box-shaped housing, and the size of the road surface plate is set to a size that covers the opening of the fire hydrant elevator opening formed in the supervisor passage.

(Connected hose)
A connecting hose with a hose length required to hold the hose storage part in the exposed position between the hose of the hose storage part that can be raised and lowered by the elevating mechanism and the water discharge control mechanism installed in the internal space of the supervisor passage. Connecting.

(Flexible joint)
A flexible joint is used for the connection between the hose and the connecting hose of the hose storage part and / or the connection between the hose of the hose storage part and the water discharge control mechanism.

(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 of lifting mechanism)
The lifting mechanism is
One or more hydraulic actuators that raise the hose housing by supplying fire-extinguishing water and lower the hose housing by draining fire-extinguishing water;
A control valve that controls the supply of fire-fighting water to the hydraulic actuator;
A drain valve that drains fire-fighting water from the hydraulic actuator;
By opening the control valve, the water pressure actuator is supplied with fire-extinguishing water to raise the hose housing, and by closing the control valve, the drain valve is opened to drain the fire-extinguishing water from the water pressure actuator and lower the hose housing. An elevating operation switch to enable,
Is provided.

(Fire extinguisher storage)
The hose storage unit is integrally provided with a fire extinguisher storage unit that stores the fire extinguisher so that it can be taken out from both the front surface and the back surface.

(Rise by operating the transmitter)
The elevating mechanism raises the hose storage part by operating the transmitter.

(Acoustic alarm when rising)
The lifting mechanism sounds an audible alarm when the hose housing is raised.

(Box opening part of the guard passage)
The hose storage part and the elevating mechanism are stored in a box opening part formed through the part from the road surface of the supervisor passage to the front wall through the road shoulder.

(Basic effect)
The present invention relates to a fire hydrant facility in a tunnel, a fire hydrant elevator opening opened on a road surface of a supervisor passage provided along a tunnel side wall, and a fire hydrant elevator opening arranged from the inside of the supervisor passage to the fire hydrant elevator opening, A hose with a hose with a nozzle attached to the tip is housed in an internal shape so that it can be pulled out freely, and installed in the interior space of the supervisor's passage. A water discharge control mechanism that supplies water to the hose and discharges the water, and is installed in the internal space of the supervisor passage. Normally, the hose storage part is lowered and held in the storage position to close the fire hydrant elevator opening of the supervisor passage. A vehicle accident involving a fire in the tunnel is provided with an elevating mechanism that operates by supplying fire-extinguishing water when the valve is opened and raises and holds the hose storage part to the exposed position on the observer passage. If a predetermined switch operation is performed at the time of occurrence, the hose storage part housed in the supervisor passage is pushed up by the lifting mechanism and exposed on the road surface of the supervisor passage, and the fire hydrant door must be opened. In addition, it is possible to easily and easily extinguish the fire by pulling out the hose with the nozzle from the hose housing part exposed on the monitoring person passage.

(Effects of arrangement of lifting control mechanism and water discharge control mechanism)
In addition, because the elevating control mechanism that controls the supply of fire-fighting water to the elevating mechanism and the water discharge control mechanism are installed in the management passage located under the floor slab, the space-constrained monitoring personnel It is no longer necessary to provide a lift control mechanism and a water discharge control mechanism in the internal space of the passage, making it possible to easily perform facility construction and inspection.

(Effect of double-sided hose drawer structure)
In addition, the hose storage part has a structure in which a hose can be pulled out from both the front and the back in a state where the box-shaped housing is opened on the front and the back and is lifted to the exposed position by the lifting mechanism. The fire can be extinguished easily and easily by pulling out the hose with a nozzle from the road side or from the supervisor passage.

(Effects of road plate on the top surface of the hose housing)
In addition, the hose storage part has a road surface plate on the top surface of the box-shaped housing, and the size of the road surface plate is larger than the opening of the fire hydrant elevator opening formed in the monitoring person passage. When the hose storage part is stored in the passage and the fire hydrant door is closed, the road surface plate on the top of the housing securely closes the fire hydrant door, and the road surface board is positioned beyond the periphery of the fire hydrant door. Thus, even if a person gets on the road surface board, it can be surely supported, and it does not hinder the passage of the supervisor passage at the time of inspection or evacuation.

(Effects of connecting hose)
In addition, a hose length required when the hose storage part is held in the exposed position between the hose of the hose storage part that can be moved up and down by the lifting mechanism and the water discharge control mechanism installed in the internal space of the supervisor passage. Because it is connected with a hose, even if the hose storage part is separated from the fixed water discharge control mechanism so that it can be raised and lowered, it is not affected by the movement of the hose storage part. It can be supplied to the hose of the hose storage part and allowed to discharge.

(Effects of flexible joint)
Moreover, since a flexible joint is used for the connection between the hose of the hose storage part and the connection hose and / or the connection of the hose of the hose storage part and the water discharge control mechanism, the movement of the connection hose accompanying the raising and lowering of the hose storage part is Absorbed by the flexible joint, it is possible to prevent deformation of the hose itself and wear due to kinks.

(Effects of fire hydrant valves and their operation)
Moreover, since the water discharge control mechanism is provided with an operation switch or an operation lever for opening and closing the fire hydrant valve, the hose with a nozzle is pulled out after the operation for exposing the hose storage part on the monitoring person passage, and the operation switch or the operation lever is operated. Operate to open fire hydrant valve and start water discharge.

(Effects of the hydraulic actuator of the lifting mechanism)
In addition, the elevating mechanism includes one or more hydraulic actuators that raise the hose housing portion by supplying fire-extinguishing water and lower the hose housing portion by discharging fire-extinguishing water, and a control valve that controls the supply of fire-extinguishing water to the water pressure actuator. , A drain valve that drains fire-extinguishing water from the water pressure actuator, and the control valve is opened to supply the fire water to the water pressure actuator to raise the hose housing, and the control valve is closed to open the drain valve. The hoist housing switch is provided with an elevating operation switch that allows the water for fire extinguishing to drain and the hose housing part to be lowered, so that the water pressure actuator that uses the water pressure of the fire extinguishing water supplied to the fire hydrant equipment operates the Push up the hose storage part stored inside from the fire hydrant elevator 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.

(Effects of fire extinguisher storage)
In addition, the hose storage unit is integrally provided with a fire extinguisher storage unit in which a fire extinguisher can be taken out from both the front and back sides, so that when a vehicle accident involving a fire occurs in the tunnel, a predetermined switch operation is performed. When done, the fire extinguisher storage part housed in the supervisor passage is pushed up by the elevating mechanism together with the hose storage part and exposed on the road surface of the supervisor passage, without requiring the opening operation of the fire extinguisher door, The fire extinguisher can be easily and easily removed from the fire extinguisher storage part exposed on the monitoring person passage. Furthermore, it is possible to take out the fire extinguisher easily and easily from the road side and from the supervisor passage.

(Elevation effect by operating the transmitter)
In addition, the elevating mechanism raises the hose housing part by operating the transmitter, so when a fire report is made by operating the transmitter provided on the reporting device panel, the hoist housing part is moved by the elevating mechanism in conjunction with this. It can be raised and exposed on the road surface of the supervisor passage, and it is possible to quickly draw out a hose with a nozzle and perform a fire fighting operation.

(Effects of rising acoustic warning)
In addition, since the elevating mechanism sounds an acoustic alarm when the hose housing part is raised, when raising and lowering the hose housing part by the elevating mechanism and pushing it up on the road surface of the supervisor passage, it alerts people around it can do.

(Effects of the box opening part of the guard passage)
Moreover, when all the electric pipes etc. are arrange | positioned in the management channel | path, there will be no duct below a supervisor channel | path and it will be filled with concrete. In this case, the hose storage portion and the lifting mechanism are stored in a box opening formed through the portion extending from the road surface of the monitor passage to the front wall through the shoulder, so that the hose is stored in the monitor passage. It is easy to create a space for storing the section and the lifting mechanism, and since the hose storage section and the lifting mechanism can be incorporated from the front road side, the construction is facilitated.

Explanatory drawing showing fire hydrant equipment installed in a shield tunnel Explanatory drawing showing fire hydrant equipment in the tunnel from the road side Explanatory drawing showing the internal structure of the fire hydrant facility in the tunnel as seen from the road surface side Explanatory drawing showing the internal structure of the fire hydrant equipment in the tunnel as seen from the side Explanatory drawing which showed embodiment of the water discharge control mechanism and the raising / lowering control mechanism provided in the control-mechanism storage part installed in the supervisor passage Explanatory drawing which showed the state which raised the hose accommodating part by the raising / lowering mechanism, and was exposed on the supervisor path | route seen from the road surface side Explanatory drawing which showed the state which raised the hose storage part by the raising / lowering mechanism, and was exposed on the supervisor passage from the side Explanatory drawing showing the fire hydrant in the tunnel containing the 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 seen from the road surface side Explanatory drawing which showed other embodiment of the raising / lowering control mechanism which controls supply of the water for fire extinguishing to an raising / lowering mechanism with a hydraulic actuator. Explanatory drawing showing the unboxing part of the observer passage from the road side

[Outline of fire extinguishing equipment in the tunnel]
FIG. 1 is an explanatory view showing a fire hydrant facility installed in a tunnel of an automobile exclusive road. 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 with a cylindrical tunnel wall surface 12. The road 15 has two lanes in one direction.

  A supervisor passage 14 is provided along the tunnel wall surface 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 partitioned into a plurality of sections in the tunnel longitudinal direction. For example, the section located under the supervisor passage 14 is used as the management passage 20. The management passage 20 is used as an emergency evacuation passage when a fire occurs in the tunnel.

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

  In addition, the internal space below the supervisor 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 the management passage 20 under the floor of the supervisor passage 14 used as the duct 22, and a part of equipment of the fire hydrant equipment 16, for example, a control mechanism including valves. Etc. are arranged in the management passage 20.

  Further, since the internal space of the supervisor passage 14 can be used as an inspection work space for the fire hydrant facility 16, an openable doorway (not shown) is provided in the upper supervisor passage 14 to check the fire hydrant facility 16. Inspectors can go in and out.

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

(Appearance structure of fire hydrant equipment)
As shown in FIG. 2, the main part of the fire hydrant facility 16 is installed in the internal space below the floor of the supervisor passage 14 provided with the handrail 40, and the supervisor passage 14 serving as the installation location of the fire hydrant facility 16. A notification device panel 28 provided with a fire hydrant door 26 and an operation box 35 is installed on the upper portion of the front wall 14a facing the road of the road. The fire hydrant door 26 and the notification device panel 28 are, as shown in FIG. It is attached to the front surface of the operation box 35 embedded in 14a.

  The fire hydrant door 26 is mounted so that it can be opened and closed downward about the lower hinge 26a. By pulling the handle 27 toward the front, the lock can be released and opened. Inside the operation box 35 closed by the fire hydrant door 26, as shown by a dotted line, a water faucet 90 having a hose connection port and a pump start switch 92 are provided. For this reason, when a vehicle accident involving a fire occurs, the fire brigade opens the fire hydrant door 26 and connects the fire hose to the water faucet 90 so that the fire extinguishing pump is activated by operating the pump start switch so that the fire extinguishing activity can be performed. ing.

  The notification device panel 28 is provided with a red indicator lamp 30, a transmitter 32 and a response lamp 34. The red indicator lamp 30 is always turned on so that the installation location of the fire hydrant facility 16 can be seen from a distance. In the event of a fire, when the push button switch is turned on by pressing the transmitter 32, a transmission signal is transmitted to the fire receiver in the monitoring room, a fire alarm is issued, and a response signal is sent from the fire receiver accordingly, and a response lamp 34 is turned on.

  In addition, the notification device panel 28 is provided with an ascending switch 36 a and a descending switch 36 b for raising and lowering the hose storage portion of the fire hydrant facility 16 disposed in the supervisor passage 14.

  Furthermore, the handrail 40 is not provided in the part of the supervisor passage 14 where the fire hydrant facility 16 is installed, and this hinders the operation of the hose storage portion that is exposed from rising from the inside on the road surface of the supervisor passage 14. I do not want to be.

  It should be noted that the panel portion of the notification device panel 28 on which the ascending switch 36a and the descending switch 36b are arranged can be operated from both the road 15 side and the supervisor passage 14, so that it is oblique to the shoulder portion of the supervisor passage 14. You may arrange | position so that it may be located in.

(Structure of fire hydrant equipment installed in the interior space)
As shown in FIGS. 3 and 4, a rectangular fire hydrant elevator opening 42 is opened on the road surface corresponding to the installation location of the fire hydrant equipment 16 in the supervisor passage 14, and at the upper part of the opening edge of the fire hydrant elevator opening 42. A step portion 42a is formed.

  A hose storage portion 44 of the fire hydrant facility 16 is disposed so as to be movable up and down with respect to the fire hydrant elevator 44. The hose storage section 44 includes a box-shaped casing 48 that opens to the front and the back, and four frame pipes 52 are arranged at the front and back openings of the casing 48 to form a hose outlet 55 therebetween. ing. Inside the hose storage portion 44, the hose 54 with the nozzle 56 attached to the tip is housed in an internally wound state, and the nozzle 56 attached to the tip of the hose 54 is disposed at the center of the internally wound hose 54, and a housing 48 is provided. The nozzle 56 can be taken out from either the front surface or the back surface.

  Further, in the hose storage portion 44, 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 the control mechanism storage portion 45 disposed in the management passage 20 are provided. Is provided.

  The hose storage portion 44 is supported by an elevating mechanism 46 so as to be movable up and down. The elevating mechanism 46 is provided with standing hydraulic actuators 60 at four positions corresponding to the corners of the rectangular bottom of the hose storage portion 44. The hydraulic actuators 60 are pistons connected to pistons slidably provided in the cylinder cylinder. The rod is taken out upward, and the tip of the piston rod is fixed to the bottom of the hose housing 44.

  A control mechanism storage section 45 is disposed in the management passage 20 below the internal space in which the elevating mechanism 46 is disposed. The control mechanism storage section 45 is supplied with fire-extinguishing water to the hose 54 of the hose storage section 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 water for fire extinguishing supplied to the water supply main pipe 24 from the fire pump system 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 built in the control mechanism storage unit 45 is connected to a flexible joint 63 serving as a hose connection port of the hose storage unit 44 via a connection hose 62. The connecting hose 62 has a hose length having a margin necessary for connection when the hose storage portion 44 is pushed up from the fire hydrant elevator opening 42 of the monitoring person passage 14 by the lifting mechanism 46 and held at the exposed position. As a result, even if the hose storage portion 44 is moved up and down with respect to the pipe on the fixed side, the hose storage portion 44 can move without the connecting hose 62 being pulled out. Further, the movement of the connecting hose 62 caused by the raising / lowering operation is absorbed by the movement of the flexible joint 63.

  A piping for supplying and draining water for extinguishing fire is connected to the hydraulic actuator 60 of the lifting mechanism 46 from the lifting control mechanism built in the control mechanism housing 45.

  The number of hydraulic actuators 60 provided in the elevating mechanism 46 can be an appropriate number as required. For example, a hydraulic actuator having a predetermined diameter having a lifting force corresponding to the weight of the hose storage portion 44 is 1 in the center. Alternatively, the three hydraulic actuators 60 having a total pushing force corresponding to the weight of the hose storage portion 44 may be arranged in a triangle.

  Further, the connection between the hose storage 44 and the control mechanism storage 45 is made by connecting the inside of the supervisor passage with the connection hose 62 and the management passage 20 side with a pipe. The space may be directly connected by a connecting hose. Also in this case, the connection of the connection hose with respect to the hose storage part 44 side and the control mechanism storage part 45 is connected by a flexible joint.

(Water discharge control mechanism)
FIG. 5 is an explanatory view showing an embodiment of a water discharge control mechanism and a lift control mechanism provided in a control mechanism storage section installed in the supervisor 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 a branch pipe 24 a from a water supply main, and a manual fire hydrant valve 72 is connected in parallel with the remote fire hydrant valve 70. Has been. A pressure adjustment valve 74 is connected to the remote fire hydrant valve 70, and the secondary side of the pressure adjustment valve 74 is connected to the hose storage portion 44 via the connection hose 62 as shown in FIG. 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 controlled to open when a 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.
When the water discharge stop switch 38b provided in the hose storage unit 44 shown in FIG. 3 is operated during the water discharge operation, the closing control is performed, and the supply of fire-extinguishing water to the hose storage unit 44 is stopped.

  The remote hydrant valve 70 may not be an electric valve, but a hydrant valve opening / closing lever may be provided in the hose housing 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 a branch pipe 24 a from the water supply main, and a manual control valve 80 is connected in parallel with the remote control valve 78. Has been. The secondary side of the remote control valve 78 is connected to the hydraulic actuator 60 shown in FIG. 4 via a piping 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 84.

  The automatic pressure regulating valve 82 can adjust the set pressure by adjusting the spring load, and the rising speed of the hose accommodating portion 44 by the hydraulic actuator 60 can be adjusted 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 the water for fire extinguishing is not supplied to the hydraulic actuator 60 in FIG. 3, so the piston of the hydraulic actuator 60 is at the lowest point in the figure. The hose storage part 44 is stored in the internal space of the supervisor passage 14, and the fire hydrant elevator 42 is closed by the road surface plate 50 of the hose storage part 44.

  In the event of a fire due to a vehicle accident in the tunnel, the remote control valve 78 is controlled to open by operating the ascent switch 36 a of the notification device panel 28 shown in FIG. 2, and fire extinguishing water is supplied to the hydraulic actuator 60 via the orifice 83. It is supplied, pushes up the piston in the cylinder, and raises the hose storage portion 44 via the piston rod.

  In this case, since the amount of fire extinguishing water squeezed by the orifice 84 is supplied to the hydraulic actuator 60, the hose storage portion 44 is pushed up at a slow predetermined speed determined by the adjustment pressure of the automatic pressure regulating valve 81 and the orifice 84. It is exposed on the supervisor passage 14 and stopped and held at the full stroke position.

  When the hose storage portion 44 exposed and held on the supervisor passage 14 is stored, the remote control valve 78 is closed by operating the lowering switch 36b of the hose storage portion 44 shown in FIG. Supply of fire-extinguishing water to 60 is stopped. When the drain valve 84 is opened in this state, the water for fire extinguishing is drained from the water pressure actuator 60, and the water pressure actuator 60 of the elevating mechanism 46 receiving the weight of the hose storage portion 44 descends at a slow predetermined speed determined by the orifice 83. The hose storage portion 44 is stored in the fire hydrant elevator 42.

[Operation of fire hydrant equipment]
FIG. 6 is an explanatory view showing a cross-section viewed from the road side where the hose storage portion is lifted by the lifting mechanism and exposed on the monitoring staff passage, and FIG. It is explanatory drawing shown in the cross section which looked at the state exposed on the channel | path from the side surface.

(Normal monitoring)
During normal monitoring when a vehicle is traveling on the road of the tunnel 10 shown in FIG. 1, the hose storage portion 44 of the fire hydrant facility 16 has water for fire extinguishing from the elevation control mechanism 66 as shown in FIGS. 1 to 3. Is stopped, the hydraulic actuator 60 of the elevating mechanism 46 positions the piston at the lowest point, so that the elevating mechanism 46 accommodates the hose accommodating portion 44 in the internal space of the supervisor passage 14 and the housing. The road surface plate 50 on the upper surface of the body 48 is pressed against and supported by the step portion 42a of the fire hydrant elevator 42, and even if the fire hydrant equipment 16 is installed in the supervisor passage 14, the passage of people through the supervisor passage 14 Will not interfere with or cause danger.

(When a fire breaks out)
On the other hand, when a vehicle accident involving a fire occurs in the tunnel 10, the user goes to the hydrant facility 16 near the fire occurrence place and pushes the transmitter 32 of the notification device panel 28 shown in FIG. The response lamp 34 is turned on to confirm the completion of the report to the monitoring room side.

  Subsequently, in order to perform a fire extinguishing operation, the raising switch 36a provided on the reporting device panel 28 is pressed and turned on. When the ascent switch 36 is turned on, an open control signal is sent to the remote control valve 78 of the lift control mechanism 66, and the remote control valve 78 is controlled to open, so that fire-fighting water from the branch pipe 24a is sent 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 through the orifice 84 and supplied into the cylinder, and pushes up the hose housing portion 44 supported through the piston rod.

  For this reason, the road surface plate 50 closing the fire hydrant raising / lowering opening 42 of the supervisor passage 14 is lifted, 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. Stop and hold this exposure position.

  When the hose storage portion 44 is held in an exposed state on the supervisor passage 14 in this way, the user takes out the nozzle 56 from the road side through the front opening of the housing 48, so that the hose can be easily and easily obtained. 54 can be pulled out.

  Subsequently, when the user presses and turns on the water discharge switch 38a provided in the exposed hose storage portion 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 water for extinguishing fire at the specified pressure adjusted by the pressure regulating valve 74 is supplied to the hose 54 via the connecting hose 62, and fire extinguishing activity can be performed by discharging water from the nozzle 56.

  On the other hand, when a user performs a fire extinguishing work from the side of the supervisor passage 14, the nozzle 56 can be easily and easily removed by removing the nozzle 56 from the rear opening of the casing 48 in the hose storage portion 44 exposed and held on the supervisor passage 14. The hose 54 can be easily pulled out and fire extinguishing work can be performed.

  When the fire is extinguished and the fire extinguishing operation is completed, when the water discharge stop switch 38b provided in the hose housing portion 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 The valve 70 is closed, and water discharge from the nozzle 56 can be stopped.

  Further, in the restoration work after the fire extinguishing work is finished, the hose 56 is drained, and then the hose 54 is housed in an internally wound state in the hose housing part 44 exposed and held on the supervisor passage 14. . Subsequently, by turning on the lowering switch 36b provided on the reporting device panel 28, a closing control signal is sent to the remote control valve 78 of the lifting control mechanism 66 to close it.

  In this state, when the clerk enters the management passage 20 and opens the drain valve 82 of the elevation control mechanism 66 provided in the control mechanism storage section 45, the water for fire extinguishing is drained from the hydraulic actuator 60, and the weight of the hose storage section 44 is increased. In response, the elevating mechanism 46 descends, the road surface plate 50 descends to a position where it hits the stepped portion 42a of the fire hydrant elevating port 42 and stops, and the hose accommodating portion 44 is accommodated in the internal space of the supervisor passage 14. .

  The drainage valve 82 is a remote drainage valve using an electric valve, and the remote drainage valve is controlled to open after the remote control valve 78 is closed by turning on the lowering switch 36b, thereby entering the management passage 20. The hose storage portion 44 may be lowered to the storage state by remote control without operating the drain valve 82.

  If the hose storage portion 44 is not exposed on the supervisor passage 14 even if 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, the nozzle 56 is taken out, and the hose 54 is drawn out. It is possible to ensure high fail-safety.

(Inspection of fire hydrant equipment)
When the fire hydrant facility 16 is inspected, an attendant may perform an operation necessary for the inspection from the supervisor passage 14 side. Further, the inspection work of the lifting mechanism 46 and the control mechanism storage unit 45 is performed by opening the inspection door provided on the road surface of the supervisor passage 14 and entering the inside.

  The inspection work of the fire hydrant equipment 16 does not open the fire hydrant door on the road 15 side or operate from the road side. Therefore, it is not necessary to restrict the passage of the vehicle by the inspection of the fire hydrant equipment. Inspection work can be done safely even without it.

[Fire hydrant equipment with fire extinguisher storage]
FIG. 8 is an explanatory view showing the fire hydrant equipment in the tunnel containing 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 containing the fire extinguisher as seen from the road surface side. .

  As shown in FIGS. 8 and 9, the fire hydrant facility 16 of the present embodiment integrally forms a fire extinguisher storage portion 94 on the left side of the hose storage portion 44 and stores, for example, two fire extinguishers 96 side by side in the depth direction. doing.

  The casing 48 is divided into a hose storage portion 44 and a fire extinguisher storage portion 94, and the fire extinguisher storage portion 94 is open on both the front and back sides, like the hose storage portion 44, and is raised by the lifting mechanism 46. Thus, when exposed on the supervisor passage 14, the fire extinguisher 94 can be taken out from both the road 15 side and the supervisor passage 14 side to perform the fire extinguishing work.

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

  As shown in FIG. 10, the lifting mechanism of this embodiment is provided with a single hydraulic actuator 60, and the hydraulic actuator 60 has a piston 65 slidably provided in a cylinder 64, and lower and upper cylinders. A piston rod 67 extends upward from the piston 65.

  The elevation control mechanism 66 is connected to a remote control valve 78 using a motor-operated valve in the branch pipe 24 a from the water supply main, 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 the port a of the four-way ball valve 86 through 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. The ports a and b are communicated and the ports c and d are communicated at the first switching position. 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 via 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 lowering speed of the hydraulic actuator 60 arbitrarily.

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

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

  When the hose storage portion 44 exposed and held on the supervisor passage 14 is stored, when the lowering switch 36b of the hose storage portion 44 shown in FIG. 3 is operated, the four-way ball valve 86 is in the second position indicated by 86a. The ports a and c are communicated and the ports b and d are communicated.

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

[Box construction of the guard passage]
FIG. 11 is an explanatory view showing the box opening portion of the supervisor passage from the road side. In this embodiment, there is no duct in the lower part of the supervisor passage 14 and it is filled with concrete, and all the electric pipes and the like are arranged in the management passage.

  As shown in FIG. 11, such a supervisor passage 14 is formed with a box opening 25 in which a portion extending from the road surface of the supervisor passage 14 to the front wall through the road shoulder is formed in a box shape. In addition, the hose storage portion 44 and the lifting mechanism 46 shown in FIGS. 3 and 4 can be incorporated and installed from the front side on the road 15 side with respect to the box opening portion 25 to facilitate the construction work.

[Modification of the present invention]
(Elevating mechanism)
In the above embodiment, an elevating mechanism that elevates and lowers the hose storage portion directly by a hydraulic cylinder is taken as an example, but another mechanism, for example, a pantograph type elevating mechanism may be used.
(Fire hydrant device)
The hoses and hydrant valves of the fire hydrant equipment shown 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)
The present invention includes appropriate modifications that do not impair the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

10: Tunnel 12: Tunnel wall surface 14: Observer passage 14a: Front wall 15: Road 16: Fire hydrant equipment 17: Fire extinguisher box 18: Floor slab 20: Management passage 22: Duct 23: Electric conduit 24: Water supply main 24a : Branch pipe 25: Box opening part 26: Fire hydrant door 28: Notification device panel 30: Red indicator lamp 32: Transmitter 34: Response lamp 35: Operation box 36a: Up switch 36b: Down switch 38a: Water discharge switch 38b: Water discharge stop Switch 40: Handrail 42: Fire hydrant elevator 42a: Step 44: Hose storage 45: Control mechanism storage 46: Lift mechanism 48: Housing 50: Road plate 52: Frame pipe 54: Hose 55: Hose outlet 56 : Nozzle 60: Hydraulic actuator 62: Connection hose 63: Flexible joint 64: Water discharge control mechanism 65: Base 66: Lift control mechanism 7: Piston rod 70: Remote fire hydrant valve 72: Manual fire hydrant valve 74: Pressure adjusting 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: Four-way ball valve 88: Needle drain valve 90: Water tap 92: Pump start switch 94: Fire extinguisher storage part 96: Fire extinguisher

Claims (12)

A fire hydrant elevator opening on the road surface of the observer passage provided in the tunnel side wall or along the tunnel traveling direction;
A hose storage portion that is disposed so as to be movable up and down with respect to the fire hydrant elevating port from the inside of the supervisor passage, and in a box-shaped housing, a hose with a nozzle attached to the tip thereof is retractably stored;
A water discharge control mechanism installed at the lower part of the road surface of the supervisor passage, and supplying water for fire extinguishing to the hose of the hose storage part by opening the fire hydrant valve;
Installed in the lower part of the road surface of the supervisor passage, normally, the hose storage part is lowered to hold the fire hydrant lift opening opened on the road surface of the supervisor passage and operated by supplying fire water An elevating mechanism that raises and holds the hose storage portion at an exposed position on the monitoring member passage;
A fire hydrant facility in the tunnel characterized by the provision of
The fire hydrant equipment in a tunnel according to claim 1, wherein the elevating control mechanism for controlling the supply of fire-extinguishing water to the elevating mechanism and the water discharge control mechanism are installed in a management passage located under a floor slab. A fire hydrant in the tunnel.
In the fire hydrant installation in a tunnel according to claim 1, in the state where the hose storage portion is opened and held at the front and back by the box-shaped housing, and is lifted and held at the exposed position by the lifting mechanism. A fire hydrant in a tunnel, characterized in that the hose can be pulled out from both the front and back.
2. The fire hydrant in a tunnel according to claim 1, wherein the hose storage portion includes a road surface plate disposed on an upper surface of the box-shaped housing, and the size of the road surface plate is defined in the monitoring person passage. A fire hydrant facility in a tunnel, characterized by having a size that covers beyond the opening of the elevator.
(Connected hose)
In the tunnel fire hydrant facility according to claim 1,
A hose required when the hose housing portion is held at the exposed position between the hose of the hose housing portion that can be moved up and down by the lifting mechanism and the water discharge control mechanism installed in the internal space of the supervisor passage. A fire hydrant in a tunnel, which is connected by a long connecting hose.
The fire hydrant equipment in a tunnel according to claim 2 and 5, wherein a flexible joint is connected to a connection between the hose of the hose storage portion and the connection hose and / or a connection between the hose of the hose storage portion and a water discharge control mechanism. Tunnel fire hydrant equipment characterized in that is used.
(Fire hydrant valve and its operation)
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 the fire hydrant valve.
In the tunnel fire hydrant facility according to claim 1,
The lifting mechanism is
One or a plurality of hydraulic actuators that raise the hose storage part by supplying fire-extinguishing water and lower the hose storage part by draining the fire-extinguishing water;
A control valve for controlling the supply of fire-extinguishing water to the hydraulic actuator;
A drain valve for draining fire water from the hydraulic actuator;
By opening control of the control valve, water for extinguishing is supplied to the water pressure actuator to raise the hose housing, and water for fire extinguishing is drained from the water pressure actuator by closing control of the control valve and opening of the drain valve. An elevating operation switch that allows the hose storage part to descend;
A fire hydrant facility in a tunnel characterized by comprising
2. The fire hydrant in a tunnel according to claim 1, wherein the hose storage portion is integrally provided with a fire extinguisher storage portion in which a fire extinguisher is removably stored from both the front surface and the back surface. Facility.
The fire hydrant installation in a tunnel according to claim 1, wherein the elevating mechanism raises the hose storage portion by operating a transmitter.
The fire hydrant installation in a tunnel according to claim 1, wherein the elevating mechanism sounds an audible alarm when the hose storage portion is raised.
  The fire hydrant equipment in a tunnel according to claim 1, wherein the hose storage portion and the elevating mechanism are stored in a box opening formed so as to penetrate from a road surface of the monitoring person passage to a front wall through a road shoulder. A fire hydrant device in a tunnel characterized by being made.

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