JP2018089282A - Fire hydrant apparatus in tunnel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve decrease in an installation space and downsizing by connecting a hose storage part moved by a lifting mechanism and a stationary-side pipe at the shortest distance.SOLUTION: When a fire hydrant is used, a hose storage part 44 liftably/lowerably disposed in the inside of a watchman's passage is lifted and held at an exposed position on the watchman's passage by a piston cylinder lifting mechanism 46a, and fire-fighting water is fed from a water discharge control mechanism 45 separately installed in a management passage 20 on a lower side of the watchman's passage, to a hose 54 of the hose storage part 44 and is discharged. A connecting pipe 64 disposed outside the cylinder of the piston cylinder lifting mechanism 46a is fixed to a feed-water pipe 58 erected in the watchman's passage from the water discharge control mechanism 45, and an interval between an upper end side of the connecting pipe 64 and the hose storage part 44 is connected by a flexible connecting hose at the shortest distance.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a fire hydrant facility in a tunnel that allows a hose to be taken out by raising a hose storage portion.

  Conventionally, fire hydrant devices have been provided as emergency equipment for tunnels installed in tunnels such as expressways and motorway roads, and the fire hydrant device has a nozzle at the tip of the fire hydrant storage part of the 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 observer passage is provided as a side wall passage that is about 1 meter higher than the road surface, and it is necessary to inspect various devices including fire hydrants installed safely in the tunnel without obstructing vehicle traffic in the tunnel. It is possible.

  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, the present applicant has proposed a lift-type fire hydrant facility that can be easily and easily handled from the road side and the supervisor passage side. The elevating type fire hydrant equipment has a hose storage part in which a hose with a nozzle is accommodated, and can be moved up and down by the elevating mechanism in the observer passage. When a vehicle accident involving a fire occurs in the tunnel, a predetermined operation can be performed. If the hose storage part is lifted and held at the exposed position on the supervisor passage by the operation of the lifting mechanism, the hose storage part exposed on the supervisor passage is not required without opening the fire hydrant door. Fire extinguishing can be performed simply and easily by pulling out the hose with nozzle.

  By the way, in such an elevating type fire hydrant facility, the hose accommodating portion provided in the monitoring person passage is moved by the elevating mechanism, so that the hose accommodating portion is connected to the water supply pipe on the fixed side. A structure that can supply water for fire extinguishing is required even if it moves, and the fixed-side water supply pipe and the moving-side hose storage are connected by a flexible hose.

  However, the flexible hose that connects between the fixed-side water supply pipe and the moving-side hose storage portion needs a sufficient hose length that enables the hose storage portion to move, and the connecting hose becomes long. As a result, the connecting hose is greatly bent in a steady state where the hose storage portion is stored in the supervisor passage. Therefore, it is necessary to secure a space that does not hinder the bending of the hose, and there is a problem that the equipment is enlarged.

  An object of the present invention is to provide a fire hydrant facility in a tunnel that enables a reduction in installation space and a reduction in size by connecting a hose housing portion moved by an elevating mechanism and a fixed-side pipe at a shortest distance.

(Fire hydrant equipment in the tunnel)
The present invention
A hose storage section in which a hose with a nozzle attached to the tip is stored in a freely retractable manner inside the observer passage provided along the tunnel side wall;
When using a fire hydrant, an elevating mechanism that raises the hose housing and holds it in an exposed position on the observer passage;
A water discharge control mechanism that is installed separately in a predetermined section below the supervisor passage, and supplies water for fire extinguishing to the hose of the hose storage part to discharge water,
In the fire hydrant facility in the tunnel equipped with
The water supply pipe raised from the water discharge control mechanism into the supervisor passage is connected to a connection pipe extending to a predetermined position at the upper part of the elevating mechanism, and a flexible space is provided between the upper end of the connection pipe and the hose storage portion. It is connected by a connecting hose.

(Piston cylinder lifting mechanism)
The elevating mechanism is a piston cylinder elevating mechanism that elevates and lowers the hose storage part by controlling the supply and discharge of hydraulic pressure,
A connecting pipe is fixed outside the cylinder in the piston cylinder lifting mechanism.

(Connected hose length)
The connecting hose has a predetermined hose length necessary to move the hose housing to an exposed position on the supervisor passage.

(Universal joint)
A universal joint is provided at the connection hose and the hose connection part of the hose storage part and / or the connection part of the connection hose and the connection pipe.

(Pantograph lifting mechanism)
In another form of the present invention,
A hose storage section in which a hose with a nozzle attached to the tip is stored in a freely retractable manner inside the observer passage provided along the tunnel side wall;
When using a fire hydrant, an elevating mechanism that raises the hose housing and holds it in an exposed position on the observer passage;
A water discharge control mechanism that is installed separately in a predetermined section below the supervisor passage, and supplies water for fire extinguishing to the hose of the hose storage unit to discharge water;
In the fire hydrant facility in the tunnel equipped with
The lifting mechanism is a pantograph lifting mechanism that is vertically expanded and contracted by a drive mechanism,
The connecting pipe is divided and fixed along the link arm in the pantograph lifting mechanism,
A flexible connection hose connects between the water supply pipe raised from the water discharge control mechanism into the supervisor passage and the connection pipe divided and fixed to the link arm at the lower end and between the divided connection pipes. It is characterized by that.

(Pantograph lift mechanism drive mechanism)
The drive mechanism of the pantograph lifting mechanism is a piston cylinder mechanism that expands and contracts the pantograph vertically by controlling supply and discharge of hydraulic pressure, or a screw shaft drive mechanism that expands and contracts the pantograph vertically by rotating the screw shaft by a motor.

(Basic effect)
The present invention, when using a fire hydrant, and a hose storage portion that is disposed in a manner that can be raised and lowered freely inside a monitor passage provided along the side wall of the tunnel, and that a hose with a nozzle attached to the tip is retractably stored, Elevating mechanism that raises the hose storage part and holds it at the exposed position on the supervisor passage, and is installed separately in a predetermined section below the supervisor passage, and supplies fire-fighting water to the hose in the hose compartment to discharge water In the fire hydrant facility in the tunnel provided with the water discharge control mechanism, the water supply pipe raised from the water discharge control mechanism into the supervisor passage is connected to a connecting pipe extending to a predetermined position above the lifting mechanism, Since the upper end of the connection pipe and the hose storage part are connected by a flexible connection hose, compared to the case where the water supply pipe and the hose storage part set up in the supervisor passage are connected by the connection hose, By connecting the connecting hose to the upper end of the connecting pipe fixed to the lowering mechanism, the length of the connecting hose can be shortened by the amount corresponding to the height of the connecting pipe fixed to the lifting mechanism. By shortening, the bending of the connecting hose with the hose storage part stored in the supervisor passage is reduced, and the fire hydrant equipment can be miniaturized by reducing the space required for connecting the hose in the supervisor passage. To do.

(Effects of piston cylinder lifting mechanism)
The lifting mechanism is a piston cylinder lifting mechanism that lifts and lowers the hose housing by controlling the supply and discharge of hydraulic pressure. The connecting pipe is fixed outside the cylinder in the piston cylinder lifting mechanism. By fixing the pipe, the upper end of the connection pipe is positioned sufficiently close to the hose storage portion, thereby enabling the connection hose to be shortened to the required hose length.

(Effect of hose length of connecting hose)
In addition, since the connecting hose has a predetermined hose length necessary to move the hose storage part to the exposed position on the supervisor passage, the connection hose is fixed to the lifting mechanism and connected to the hose storage part. Even if the hose is shortened, it is possible to reliably move the hose storage portion to the exposed position on the supervisor passage.

(Effects of universal joint)
Moreover, since the universal joint was provided in the connection part of the connection hose and the hose storage part and / or the connection part of the connection hose and the connection pipe, the horizontal direction of the connection hose connected to the hose storage part and the connection pipe The movement is absorbed by the universal joint, and the elevating mechanism can be moved smoothly without being hindered by the connecting hose or the connecting pipe.

(Effect of using pantograph lifting mechanism)
In another form of the present invention, a hose storage part that is disposed so as to be able to move up and down freely inside a monitoring person passage provided along the side wall of the tunnel, and in which a hose with a nozzle attached to the tip is retractably stored, When using a fire hydrant, it is installed separately in an elevating mechanism that raises the hose storage part and holds it in an exposed position on the supervisor passage, and a predetermined section below the supervisor passage, and contains fire-fighting water in the hose compartment In the fire hydrant facility in the tunnel equipped with a water discharge control mechanism that supplies water to the hose of the head and discharges the water, the lift mechanism is a pantograph lift mechanism that is vertically expanded and contracted by a drive mechanism, along the link arm in the pantograph lift mechanism The connection pipe is divided and fixed, and the connection pipe divided and fixed between the water supply pipe raised from the water discharge control mechanism in the supervisor passage and the link arm at the lower end is fixed. Since the divided connecting pipes are connected by a flexible connecting hose, the connecting pipe is divided and fixed to the link arm of the pantograph lifting mechanism, and the link rotating part is connected by the flexible connecting hose. Moves together with the link arm in the pantograph lifting mechanism, and the distance between the connecting pipe fixed to the link arm and the hose housing hardly changes even if the orientation changes, and the pantograph lifting mechanism and the connecting pipe are integrated. In addition, a connecting hose that connects the water supply pipe raised in the supervisor passage and the hose housing portion that moves to the upper limit is substantially unnecessary, and the arrangement space can be greatly reduced, and the fire hydrant equipment can be downsized.

(Effects of the drive mechanism of the pantograph lifting mechanism)
The drive mechanism of the pantograph lifting mechanism is a piston cylinder mechanism that expands and contracts the pantograph vertically by controlling supply and discharge of hydraulic pressure, or a screw shaft drive mechanism that expands and contracts the pantograph vertically by rotating the screw shaft by a motor. Even if the connecting pipe is fixed to the link arm of the pantograph raising / lowering mechanism, the pantograph raising / lowering mechanism can be reliably driven to move up and down.

Explanatory drawing showing emergency equipment for tunnels including fire hydrant equipment installed in a shield tunnel Explanatory drawing showing fire hydrant storage box for storing hose from front, plane and side Explanatory drawing which showed the embodiment which connected piping was fixed to the piston cylinder raising / lowering mechanism in the section seen from the road side Explanatory drawing which showed the state which raised the hose accommodating part of FIG. 3 by the raising / lowering mechanism, and was exposed on the supervisor passage from the road surface side Explanatory drawing which showed the embodiment which connected piping was fixed to the pantograph raising / lowering mechanism in the section seen from the road side Explanatory drawing which showed the state which raised the hose accommodating part of FIG. 5 with the raising / lowering mechanism, and was exposed on the supervisor passage from the road surface side Explanatory drawing which showed the cross section which looked at other embodiment by which the connection piping was fixed to the pantograph raising / lowering mechanism from the road side

[Outline of tunnel emergency equipment]
FIG. 1 is an explanatory view showing a tunnel emergency facility including a fire hydrant facility installed in a tunnel of an automobile exclusive road. As shown in FIG. 1, the inside of the tunnel 10 constructed by the shield method is covered with a cylindrical tunnel wall surface 12, and a road 15 is provided by being partitioned by a floor slab 18. In this example, The road 15 has two lanes in one direction.

  A supervisor passage 14 is provided along the tunnel wall 12 on the left side of the road 15 partitioned by the floor slab 18, and the inner space below the supervisor passage 14 is used as a duct 22, and a conduit is laid. .

  The lower side of the floor slab 18 on which the road 15 is formed is divided into a plurality of sections in the tunnel lateral direction. For example, the section located under the supervisor passage 14 is used as a management passage 20, and The management passage 20 is used as an emergency evacuation passage when a fire occurs in the tunnel. A water supply main 24 is laid in the management passage 20.

  Fire hydrant equipment 16 is installed every 50 meters in the longitudinal direction of the tunnel 10, and the fire hydrant equipment 16 is installed separately in a fire hydrant storage box 25 in which a hose is stored and a control mechanism storage unit 45.

  The fire hydrant storage box 25 is arranged in a fire hydrant embedding part that is penetrated in a box shape over the road surface of the supervisor passage 14 and the wall surface on the road 15 side. The control mechanism storage unit 45 is disposed in the management passage 20 on the lower side of the fire hydrant storage box 25, a branch pipe branched from the water supply main pipe 24 is drawn in, and water supply for supplying fire hydrant water to the fire hydrant storage box 25 Piping is set up.

  The fire hydrant storage box 25 of the fire hydrant facility 16 is provided with a hose storage part in which a hose with a nozzle is stored and its lifting mechanism, and when a predetermined ascending operation is performed, the lifting mechanism moves the exposed position on the supervisor passage 14. The hose storage part is raised to an exposed state, enabling fire extinguishing work by pulling out the hose with nozzle.

[Fire hydrant equipment]
FIG. 2 is an explanatory view showing a fire hydrant storage box for storing a hose from the front, a plane, and a side. As shown in FIG. 2, the fire hydrant storage box 25 of the fire hydrant facility 16 is embedded in an internal space below the floor surface of the supervisor passage 14. In the fire hydrant storage box 25, a hose storage portion 44 that is lifted and lowered by a hydraulic cylinder 60 of a lifting mechanism is disposed.

  The fire hydrant storage box 25 has an opening 27 formed on the front surface of the housing. The opening 27 is provided with an inspection door 26 and a notification device panel 28, and can be removed by removing screws during inspection.

  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 case of fire, when the transmitter 32 is pressed and the push button switch is turned on, a fire notification signal is sent to the disaster prevention reception board in the monitoring room, a fire alarm is issued, and a response signal is sent from the disaster prevention reception board in response to this. The lamp 34 is turned on and the red indicator lamp 30 is blinked.

  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.

[Fire hydrant equipment using piston cylinder lifting mechanism]
FIG. 3 is an explanatory view showing an embodiment in which the connecting pipe is fixed to the piston cylinder elevating mechanism in a cross section viewed from the road side, and FIG. 4 is a diagram showing the hose storage portion of FIG. It is explanatory drawing shown in the cross section which looked at the exposed state from the road surface side.

  As shown in FIG. 3, a rectangular fire hydrant elevator opening 42 is opened at a position on the road surface side of the fire hydrant storage box 25 installed in the supervisor passage. A hose storage portion 44 is disposed below the fire hydrant elevator 42 so as to be movable up and down. The hose storage portion 44 includes a box-shaped housing 48 that opens to the front and the back, and four frame pipes 52 are disposed at the front and back openings of the housing 48 and a hose outlet 55 is formed therebetween. ing.

  Inside the hose storage portion 44, a hose 54 with a 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 part 44, the water discharge control mechanism provided in the control mechanism storage part 45 disposed in the management passage 20 is operated to close the water discharge switch 38a and the motor operated valve. A water discharge stop switch 38b is provided.

  As an elevating mechanism of the hose storage portion 44, a piston cylinder elevating mechanism 46a is provided. The piston cylinder elevating mechanism 46a has a hydraulic cylinder 60 standing upright at the center of the rectangular bottom of the hose storage 44, and the hydraulic cylinder 60 has a piston rod 63 connected to a piston 61 slidably provided in the cylinder. The top end of the piston rod 63 is fixed to the bottom of the hose storage portion 44.

  A control mechanism storage unit 45 is disposed in the management passage 20 below the fire hydrant storage box 25. Valves for supplying fire water to the hose 54 of the hose storage unit 44 to discharge the control mechanism storage unit 45 are provided. And a water discharge control mechanism including a lift control mechanism including valves for moving the piston cylinder lift mechanism 46a up and down.

  A branch pipe 24a branched from a water supply main 24 that functions as a water pressure source is connected to the control mechanism housing 45, and fire-extinguishing water supplied to the water supply main 24 from a fire pump system is introduced.

  A water supply pipe 58 raised from the water discharge control mechanism built in the control mechanism storage unit 45 to the inside of the fire hydrant storage box 25 is connected by a fixing member 65 in the vertical direction outside the hydraulic cylinder 60 via a pipe 80. Connected to the pipe 64.

  A universal joint 90 is provided on the upper end side of the connecting pipe 64 fixed to the hydraulic cylinder 60 via a pipe 86, and is flexible between the universal joint 92 provided at the hose connection port of the hose storage portion 44. The connecting hose 88 is connected.

  The connecting hose 88 has a predetermined hose length necessary for moving the hose storage portion 44 to the exposed position by the piston cylinder lifting mechanism 46a, whereby the hose storage portion 44 is moved up and down with respect to the connection pipe 64 on the fixed side. Even so, the hose storage portion 44 can be moved without the connection hose 88 coming off.

  Further, the connection hose 88 is not directly connected to the water supply pipe 58 raised in the fire hydrant storage box 25, and the water supply pipe 58 is connected to the connection pipe 64 fixed to the outside of the cylinder 60 via the pipe 80. By connecting the connecting hose 88 to the upper end side of the connecting pipe 64, the predetermined hose length required to move the hose storage portion 44 to the exposed position is set as the shortest hose length.

  Further, the lateral movement of the connecting hose 88 caused by the lifting / lowering operation is absorbed by the movement of the universal joints 90 and 92, so that extreme bending of the connecting hose 88 is suppressed, and the lifting / lowering operation of the hose storage portion 44 is not hindered. I have to.

  A piping 59 for supplying and draining water for fire extinguishing is connected to the hydraulic cylinder 60 of the piston cylinder lifting mechanism 46a from the lifting control mechanism built in the control mechanism housing 45.

  Here, the number of hydraulic cylinders 60 provided in the piston cylinder elevating mechanism 46a can be an appropriate number as necessary. For example, four hydraulic cylinders are arranged at the corner portion of the bottom of the hose storage portion 44. May be.

  In addition, although the piston cylinder raising / lowering mechanism 46a is hydraulically driven, it is not limited to this and may be hydraulically driven.

[Operation of piston cylinder lifting mechanism fire hydrant equipment]
(Normal monitoring)
During normal monitoring when the vehicle is traveling on the road of the tunnel 10 shown in FIG. 1, the hose storage portion 44 of the fire hydrant storage box 25 is a water discharge provided in the control mechanism storage portion 45 as shown in FIG. 3. Since the supply of fire-extinguishing water from the control mechanism is stopped, the hydraulic cylinder 60 of the piston cylinder elevating mechanism 46a positions the piston 61 at the lowest point, whereby the piston cylinder elevating mechanism 46a causes the hose storage part 44 to be put into the fire hydrant. Even if the fire hydrant elevator opening 42 is closed by the road surface plate 50 on the upper surface of the housing 48 and is stored in the storage box 25, There will be no hindrance or danger to the passing person.

(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 presses the transmitter 32 of the notification device panel 28 to fire the disaster prevention reception board of the monitoring center. A notification signal is transmitted, a confirmation response signal is received from the disaster prevention reception board, the response lamp 34 is turned on, and the red indicator lamp 30 is blinked to confirm the completion of the notification to the monitoring center side.

  Subsequently, in order to perform a fire extinguishing work, when the raising switch 36a provided on the reporting device panel 28 is pressed and turned on, fire water is sent from the control mechanism housing 45 to the hydraulic cylinder 60 of the piston cylinder lifting mechanism 46a. The supplied water for fire extinguishing raises the piston 61 and pushes up the hose storage portion 44 supported via the piston rod 63.

  For this reason, the road surface plate 50 closing the fire hydrant raising / lowering opening 42 of the fire hydrant storage box 25 is lifted, and the hose storage portion 44 stored inside slowly emerges from the road surface and rises to the exposed position shown in FIG. 4 and stops. , Hold this exposed position.

  At this time, as the hose storage part 44 rises, the distance from the connection pipe 64 fixed to the outside of the cylinder 60 to which the connection hose 88 is connected becomes longer, but the connection hose 88 is held at the exposed position. Since the hose has a predetermined hose length equal to or longer than the distance from the lower surface of 44 to the upper end of the connecting pipe 64, the connecting pipe 64 and the hose 54 are reliably kept connected.

  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 section 44, a water discharge start signal is output to the water discharge control mechanism of the control mechanism storage section 45, and the water for fire extinguishing is connected to the water supply pipe 58. The fire is supplied to the hose 54 via the hose 88 and can be extinguished by water discharge 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 finished, when the water discharge stop switch 38b provided in the hose storage section 44 is pressed and turned on, a water discharge stop signal is output to the water discharge control mechanism of the control mechanism storage section 45, and the nozzle 56 Water discharge from is stopped.

  Further, in the restoration work after the fire fighting work is completed, the hose 54 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, when the lowering switch 36b provided on the reporting device panel 28 is turned on, the hose accommodating portion 44 is lowered by the piston cylinder raising / lowering mechanism 46a, and the road surface plate 50 is lowered to a position where the fire hydrant raising / lowering port 42 is closed. Then, the hose storage portion 44 is stored in the fire hydrant storage box 25.

[Fire hydrant equipment using a pantograph lifting mechanism]
FIG. 5 is an explanatory view showing an embodiment in which the connecting pipe is fixed to the pantograph lifting mechanism in a cross section viewed from the road side, and FIG. 6 is elevated on the hose housing portion of FIG. It is explanatory drawing shown in the cross section which looked at the state made to see from the road surface side.

  As shown in FIG. 5, in this embodiment, a pantograph lifting mechanism 46b is provided as a lifting mechanism.

  The pantograph elevating mechanism 46b includes four link arms 74a to 74d. The link arms 74a to 74d are schematically shown.

  The left end of the link arm 74a is rotatably supported on the base 75a by a fulcrum 76a, and the link arm 74b is slidably supported by the slider 78a along the base 75a so that the link arms 74a and 74b are in the center. And are pivotally connected at a fulcrum 76b.

  The left end of the link arm 74a is rotatably connected to the left end of the link arm 74c by a fulcrum 76c, and the right end of the link arm 74b is rotatably connected to the right end of the link arm 74d by a fulcrum 76d. 74c and 74d intersect with each other at the center and are rotatably connected at a fulcrum 76e.

  Further, the right end of the link arm 74c is rotatably connected to the mounting base 75b by a fulcrum 76f, and the left end of the link arm 74d is slidably supported along the mounting base 75b by a slider 78b.

  As a drive mechanism of the pantograph lifting mechanism 46b, a piston cylinder mechanism is provided. A lower end of the cylinder 60 is rotatably connected to the link arm 74a by a fulcrum 82a, and a piston 61 provided slidably in the cylinder 60 is provided. The tip of the connected piston rod 63 is rotatably connected to the link arm 74c by a fulcrum 82b.

  The connection pipe 64a divided along the link arm 74a is fixed to the pantograph lifting mechanism 46b, and the connection pipe 64b divided along the link arm 74b is fixed.

  The water supply pipe 58 raised from the control mechanism storage unit 45 is connected to the left end of the connection pipe 64 a fixed to the link arm at the lower end by a flexible connection hose 66. The right end of the connecting pipe 64a and the right end of the connecting pipe 64b are also connected by a flexible connecting hose 68. Furthermore, the hose 54 accommodated in the hose accommodating part 44 is connected to the left end of the connection piping 64b.

  As described above, in the present embodiment, the flexible connecting hose 66 is connected to the connection of the inlet and the connection of the connection pipes 64a and 64b fixed to the link arms 74a and 74c of the pantograph lifting mechanism 46b. 68 is used, and the connection interval between the connecting hoses 66 and 68 hardly changes with the movement of the pantograph lifting mechanism 46b, and the connecting hoses 66 and 68 to be used can be shortened.

  Since other configurations and functions are the same as those in the embodiment of FIG. 3, the description thereof is omitted.

[Operation of fire hydrant equipment using pantograph lifting mechanism]
(Normal monitoring)
During normal monitoring when the vehicle is passing through the road of the tunnel 10 shown in FIG. 1, the hose storage portion 44 of the fire hydrant facility 16 is provided with a water discharge control provided in the control mechanism storage portion 45 as shown in FIG. 5. Since the supply of fire-extinguishing water from the mechanism is stopped, the hydraulic cylinder 60 of the pantograph lifting mechanism 46b positions the piston 61 at the lowest point, whereby the pantograph lifting mechanism 46b is lowered by folding the link arms 74a to 74d. The hose storage portion 44 is accommodated in the internal space of the supervisor passage 14, the fire hydrant elevator 42 is closed by the road surface plate 50 on the upper surface of the housing 48, and the fire hydrant equipment 16 is installed in the supervisor passage 14. Even if it is installed, it does not hinder the passage of people through the supervisor passage 14 or cause any danger.

(When a fire breaks out)
On the other hand, when a vehicle accident accompanied by a fire occurs in the tunnel 10, the fire switch operation is performed after the fire notification operation to the monitoring center side, and therefore, the lift switch 36a provided on the notification device panel 28 is pressed. When turned on, fire extinguishing water is sent from the control mechanism housing 45 to the hydraulic cylinder 60 of the pantograph elevating mechanism 46b, the piston 61 is raised by the fire extinguishing water supplied into the cylinder, and the link arm 74a and the link are linked via the piston rod 63. The distance between the arms 74c is increased.

  When the distance between the link arms 74a and 74c is increased, the angle of the link arms 74a and 74c is increased around the fulcrum 76c, and the angle of the link arms 74b and 74d is also increased around the fulcrum 76d in conjunction with this. The sliders 78a and 78b at the left end of 74b and 74d slide to the right, and the hose storage portion 44 attached to the attachment base 75b is pushed up.

  For this reason, the road surface plate 50 which closes the fire hydrant raising / lowering opening 42 of the monitoring person 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 FIG. 6 and stops. , Hold this exposed position.

  As the hose storage portion 44 is driven up by the pantograph lifting mechanism 46b, the connection pipes 64a and 64b fixed to the link arms 74a and 74c also maintain the connection between the water supply pipe 58 and the hose storage portion 44. Moved.

  When the hose storage portion 44 is held in an exposed state on the supervisor passage 14, the user pulls out the hose 54 easily and easily by removing the nozzle 56 from the road side through the front opening of the housing 48. Fire extinguishing work.

  In the recovery work after the fire has been extinguished and the fire extinguishing work has been completed, the hose 54 is drained, and then the hose 54 is wound in the hose storage portion 44 exposed and held on the supervisor passage 14. Storing. Subsequently, when the lowering switch 36b provided on the reporting device panel 28 is turned on, the hose storage portion 44 is lowered by the pantograph raising / lowering mechanism 46b, and the road surface plate 50 is lowered to a position where the fire hydrant raising / lowering port 42 is closed. Then, the hose storage portion 44 is stored in the internal space of the supervisor passage 14.

[Other Embodiments of Fire Hydrant Equipment Using Pantograph Lifting Mechanism]
FIG. 7 is an explanatory view showing a cross section of another embodiment in which the connecting pipe is fixed to the pantograph lifting mechanism as seen from the road side.

  As shown in FIG. 7, in this embodiment, the connection pipe 64 is fixed to the link arm 74a on the lower end side of the pantograph lifting mechanism 46b, and the water supply pipe 58 raised from the control mechanism storage unit 45 is allowed. The flexible connecting hose 66 is connected to the left end of the connecting pipe 64 fixed to the link arm 74a at the lower end. Further, the hose 54 accommodated in the hose accommodating portion 44 is connected to the right end of the connecting pipe 64.

  As described above, in the present embodiment, the flexible connecting hose 66 is only used to connect the inlet of the connecting pipe 64 fixed to the link arm 74a of the pantograph lifting mechanism 46b. The connection interval is almost unchanged with respect to the movement of the pantograph lifting mechanism 46b, and the connecting hose 66 to be used can be shortened.

  Since other configurations and functions are the same as those in the embodiment of FIG. 5, description thereof is omitted.

[Modification of the present invention]
(Drive mechanism)
In the above embodiment, a hydraulic cylinder driven by hydraulic pressure or hydraulic pressure is used as a driving mechanism of the pantograph lifting mechanism 46b, but the invention is not limited to this. For example, a screw shaft rotated by a motor is screwed into a member that connects the slider 78b provided at the right end of the link arm 74b with a screw hole, and the slider 78b is slid to the left by the rotation of the screw shaft. The pantograph elevating mechanism 46b may be driven to extend upward, and the pantograph elevating mechanism 46b may be driven to contract downward by sliding the slider 78b to the right by reverse rotation of the screw shaft.

(Fire hydrant equipment)
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 14: Monitor passage 15: Road 16: Fire hydrant equipment 18: Floor slab 20: Management passage 22: Duct 24: Water supply main 24a: Branch pipe 25: Fire hydrant storage box 26: Inspection door 30 : Red indicator lamp 32: Transmitter 34: Response lamp 36a: Raising switch 36b: Lowering switch 42: Fire hydrant elevator 44: Hose storage 45: Control mechanism storage 46a: Piston cylinder lifting mechanism 46b: Pantograph lifting mechanism 48: Enclosure Body 50: Road surface plate 54: Hose 55: Hose outlet 56: Nozzle 60: Hydraulic cylinders 62, 66, 68: Connection hoses 64, 64a, 64b: Connection pipes 74a to 74d: Link arm 75a: Base 75b: Mounting base 76a to 76f, 82a, 82b: fulcrums 78a, 78b: sliders

Claims (6)

A hose storage section in which a hose with a nozzle attached to the tip is stored in a freely retractable manner inside the observer passage provided along the tunnel side wall;
When using a fire hydrant, an elevating mechanism that raises the hose storage part and holds it in an exposed position on the supervisor passage;
A water discharge control mechanism that is separately installed in a predetermined section below the monitoring person passage, and supplies water for fire extinguishing to the hose of the hose storage part to discharge water;
In the fire hydrant facility in the tunnel equipped with
A connection pipe extending to a predetermined position above the lifting mechanism is fixed to the water supply pipe raised from the water discharge control mechanism into the monitoring person passage, and between the upper end of the connection pipe and the hose storage portion. The fire hydrant equipment in the tunnel is characterized by being connected by a flexible connecting hose.
In the tunnel fire hydrant facility according to claim 1,
The elevating mechanism is a piston cylinder elevating mechanism that elevates and lowers the hose housing portion by controlling supply and discharge of hydraulic pressure,
A fire hydrant facility in a tunnel, wherein the connecting pipe is fixed to the outside of the cylinder in the piston cylinder lifting mechanism.
The fire hydrant equipment in a tunnel according to claim 1, wherein the connecting hose has a predetermined hose length necessary for moving the hose storage portion to an exposed position on a supervisor passage. Fire hydrant equipment.
In the fire hydrant installation in a tunnel of Claim 1, the universal joint was provided in the connection site | part of the said connection hose and the hose of the said hose accommodating part, or the connection site | part of the said connection hose and the said connection piping. Tunnel hydrant equipment characterized by that.
A hose storage section in which a hose with a nozzle attached to the tip is stored in a freely retractable manner inside the observer passage provided along the tunnel side wall;
When using a fire hydrant, an elevating mechanism that raises the hose storage part and holds it in an exposed position on the supervisor passage;
A water discharge control mechanism that is separately installed in a predetermined section below the monitoring person passage, and supplies water for fire extinguishing to the hose of the hose storage part to discharge water;
In the fire hydrant facility in the tunnel equipped with
The elevating mechanism is a pantograph elevating mechanism that is vertically expanded and contracted by a driving mechanism,
The connecting pipe is divided and fixed along the link arm in the pantograph lifting mechanism,
A flexible connection between the water supply pipe raised from the water discharge control mechanism in the supervisor passage and the connection pipe divided and fixed to the link arm at the lower end and between the divided connection pipes A fire hydrant in a tunnel characterized by being connected by a hose.
  The fire hydrant equipment in a tunnel according to claim 5, wherein the drive mechanism of the pantograph elevating mechanism is a piston cylinder mechanism that expands and contracts the pantograph vertically by controlling supply and discharge of hydraulic pressure, or by rotation of a screw shaft by a motor. A fire hydrant facility in the tunnel, which is a screw shaft drive mechanism that expands and contracts the pantograph vertically.

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