JP2020168438A - Tunnel fire hydrant equipment and fire hydrant device - Google Patents

Abstract

To simply and reliably open/close a front door provided at a housing, when a fire hydrant device for storing a fire hose inside the housing, is installed on a watchman's passage.SOLUTION: A fire hydrant device buriedly installed in a watchman's passage along a tunnel wall surface and storing a fire hose inside a housing 31 comprises: a front door 32 provided at the front face of the housing 31 to be a road side and disposed so as to freely open/close a front opening; an upper door provided at the upper face of the housing to be the road surface side of the watchman's passage and disposed so as to freely open/close an upper opening; and an opening mechanism operated by an opening operation part (a forward opening handle 34) to open the upper door. When the upper door is in a closed position, the opening mechanism retains the front door 32 at the closed position along with the upper door and, when the opening operation part is operated, with the upper door in the closed position, releases the retention of the upper door and the front door 32 to make the upper door openable, and also by the opening of the front door, the front opening is opened so as to allow the takeout of the fire hose.SELECTED DRAWING: Figure 4

Description

The present invention relates to an in-tunnel fire hydrant facility that pulls out a hose with a nozzle housed in a fire hydrant storage box in an observer passage to release fire extinguishing water or fire extinguishing foam.

Conventionally, a fire hydrant device has been provided as a tunnel emergency facility installed in a tunnel such as a highway or a motorway, and the fire hydrant device is equipped with a fire hydrant door that can be opened, and a hose with a nozzle at the tip and a fire hydrant valve are attached. Contains valves including.

Fire hydrant devices are generally installed by being embedded in the tunnel wall surface along the tunnel side wall at intervals of, for example, 50 meters. In the event of a vehicle accident involving a fire, in a tunnel with a guard passage, users such as the driver of the accident vehicle climb the guard passage by steps installed on the side of the guard passage, and the tunnel wall surface. The fire hydrant door of the fire hydrant device installed in is opened forward and the hose with a nozzle is taken out to extinguish the fire.

The observer passage is provided as a side wall passage that is elevated with respect to the road surface, and it is possible to safely inspect various devices including a fire hydrant device installed in the tunnel without obstructing the passage of vehicles in the tunnel. ..

Also, in a tunnel without a guard passage, users such as the driver of the accident vehicle approach the fire hydrant device installed on the tunnel wall surface, and similarly, open the fire hydrant door forward and hose with a nozzle. I take it out and try to extinguish the fire.

Japanese Unexamined Patent Publication No. 2006-181057 Japanese Unexamined Patent Publication No. 2008-055024 JP-A-2009-285126 Japanese Unexamined Patent Publication No. 2001-009053 Jikkai Sho 64-207379

By the way, in the urban tunnel made by the shield method or the like, the fire hydrant device cannot be embedded and installed in the tunnel wall surface, and it is necessary to embed and install the fire hydrant device in the observer passage.

However, when a conventional fire hydrant device that opens the front of the fire hydrant door is installed in the observer passage, there is a problem that when the fire hydrant door is opened, the fire hydrant door exceeds the building limit and jumps out to the road side.

In order to solve this problem, for example, it is conceivable to install a fire hydrant device in which the fire hydrant door shown in Patent Document 1 is slid open and closed. However, in the fire hydrant device shown in the patent document, the front door arranged in the upper part of the front surface is slid down to open along the front surface of the fixed door on the lower front side, and therefore, on both sides of the fixed door on the lower front side, A guide groove for the upper door is formed exposed to the outside, and dust adheres to the guide groove exposed to the outside, and the handle provided at the bottom of the front door is operated to release the latch with the fixed door. However, there is a problem that the front door cannot be opened or stops in the middle due to dust adhering to the guide groove.

In addition, since the handle for opening the front door is planned to be installed at a high position such as the tunnel wall surface, when it is installed in the observer passage, it will be located quite close to the road surface, and the front door can be opened. There is a problem that is difficult to do.

Furthermore, in the event of a vehicle accident involving a fire, if the vehicle is stopped in front of the fire hydrant door, there is a problem that the stopped vehicle becomes an obstacle and the fire hydrant door cannot be opened and the hose cannot be pulled out. ..

An object of the present invention is to provide an in-tunnel fire hydrant facility that enables easy and reliable opening and closing of a front door when a fire hydrant storage box is installed on a side wall surface of an observer passage.

(Fire hydrant device in tunnel)
The present invention relates to a fire hydrant device in a tunnel.
It is a fire hydrant device that is embedded in the guard passage along the tunnel wall and has a fire hose housed inside the housing.
The front door, which is arranged so that the front opening provided on the front of the housing on the road side in the installed state can be opened and closed,
In the installed state, the upper door is arranged so that the upper surface opening provided on the upper surface of the housing on the road surface side of the observer passage can be opened and closed.
An opening mechanism that is operated by the opening operation unit to open the upper door,
With
The opening mechanism holds the front door together with the upper door in the closed position when the upper door is in the closed position, and when the opening / closing operation unit is operated when the upper door is in the closed position, the upper door and the front door It is characterized in that the upper door can be opened by releasing the holding of the door and the front opening is opened by opening the front door.

(Opening of the front door by falling along the fixed door)
The front opening is provided at the top of the front of the housing and
In addition, the fire hydrant device has a fixed door at the bottom of the front of the housing.
The opening of the front door is an opening due to a fall along the front surface of the fixed door on the road side or the back surface of the housing.

(Slide opening / closing mechanism that slides to the back side of the fixed door)
The front opening is provided at the top of the front of the housing and
In addition, the fire hydrant device
With a fixed door at the bottom of the front of the housing,
A slide opening / closing mechanism that is located on the back side, which is the inner side of the front door and fixed door housing, and slides the front door up and down.
With
The slide opening / closing mechanism slides the front door along the back surface of the fixed door when the front door is opened.

(Slide opening / closing mechanism 1)
The slide opening and closing mechanism
A guide rod that stands on the back side of the fixed door and front door,
A cylinder that is placed vertically on the back of the front door and can slide on the guide rod,
To be equipped.

(Slide opening / closing mechanism 2)
The slide opening and closing mechanism
A guide rod that stands on the back side of the fixed door and front door,
A guide member that is placed in the vertical direction on the back of the front door and is slidable on the guide rod,
To be equipped.

(Slide front door opening / closing mechanism 3)
The slide opening and closing mechanism
A fixed rod standing on the back side of the fixed door,
With the piston placed at the tip of the fixed rod,
A cylinder that is placed vertically on the back of the front door and can slide on the piston,
To be equipped.

(Slide opening / closing mechanism that slides to the front side of the fixed door)
The front opening is provided at the top of the front of the housing and
In addition, the fire hydrant device
With a fixed door at the bottom of the front of the housing,
A slide opening / closing mechanism that is located on the back side, which is the inner side of the front door and fixed door housing, and slides the front door up and down.
With
The slide opening / closing mechanism slides the front door along the front side of the fixed door on the road side when the front door is opened.

(Slide opening / closing mechanism 4)
The slide opening and closing mechanism
A cylinder standing on the back side of the fixed door,
The front door guide rod, which is fixed to the upper end of the back surface of the front door and is supported in an extending state below the back surface of the front door,
A piston that is placed at the tip of the front door guide rod and can slide on the cylinder,
To be equipped.

(Cushioning device with open front door)
It is equipped with a shock absorber that functions in the open position of the front door.

(Low friction contact on the door surface)
A low-friction contact member is provided on the opposite door surface of the front door and the fixed door.

(Front opening and rear opening of the upper door)
The upper door can be opened in the front opening that rotates from the road side toward the tunnel wall surface side and opens, and in the rear opening that rotates and opens from the tunnel wall surface side toward the road side.

(Fire hydrant equipment in the tunnel)
In a tunnel fire hydrant facility equipped with a fire hydrant device that is embedded in a guard passage along the tunnel wall and contains a fire hose inside the housing.
The fire hydrant device is
The front door, which is arranged so that the front opening provided on the front of the housing on the road side can be opened and closed,
An upper door with an openable opening on the upper surface of the housing on the road surface side of the observer passage, and an upper door.
An opening mechanism that is operated by the opening operation unit to open the upper door,
With
The opening mechanism holds the front door together with the upper door in the closed position when the upper door is in the closed position, and when the opening operation unit is operated when the upper door is in the closed position, the upper door and the front door It is characterized in that the upper door can be opened by releasing the holding of the door and the front opening is opened by opening the front door.

Since the other features of the tunnel fire hydrant equipment of the present invention are basically the same as those of the tunnel fire hydrant device described above, the description thereof will be omitted.

(Basic effect)
The present invention is a fire hydrant device in a tunnel, which is installed by being embedded in an observer passage along a tunnel wall surface and has a fire hydrant hose housed inside the housing, and is on the road side in the installed state. A front door that can be opened and closed by opening and closing the front opening provided on the front of the housing, and an upper door that can be opened and closed by opening and closing on the upper surface of the housing that is on the road surface side of the observer passage in the installed state. The opening mechanism is provided with an opening mechanism that is operated by the opening operation unit to open the upper door. When the upper door is in the closed position, the opening mechanism holds the front door together with the upper door in the closed position, and the upper door is opened. When the opening / closing operation unit is operated while in the closed position, the holding of the upper door and the front door is released so that the upper door can be opened and the front door is opened by opening the front door. When a person operates the opening operation unit to use the fire hydrant device, the upper door can be opened and the front door is opened and the front opening is opened, so that the opened front opening or the upper door is also opened. A fire hydrant device having an upper door and a front door can be configured by opening the fire hydrant and easily pulling out the fire extinguishing hose to extinguish the fire, and by sharing the opening operation unit and the opening mechanism of the upper door and the front door. Can be realized with a simpler configuration.

(Effect of opening the front door by falling along the fixed door)
Further, the front opening is provided in the upper part of the front surface of the housing, the fire hydrant device is provided with a fixed door in the lower part of the front surface of the housing, and the opening of the front door is the front surface or the housing on the road side of the fixed door. The same effect as the basic effect can be obtained even when the door is opened by falling along the back surface, which is the inner side of the body.

(Effect of slide opening / closing mechanism that slides to the back side of the fixed door)
Further, the front opening is provided in the upper part of the front surface of the housing, and the fire hydrant device is arranged in the lower part of the front surface of the housing and on the back side which is the inner side of the front door and the housing of the fixed door. The front door is equipped with a slide opening / closing mechanism that slides open / closes in the vertical direction, and the slide opening / closing mechanism slides the front door along the back surface of the fixed door when the front door is opened. Since the mechanism is located inside the housing behind the front door and is not exposed to the outside, the front door can be opened reliably by preventing the dust generated by the passage of vehicles in the tunnel from adhering, making it easy. It is possible to extinguish the fire by pulling out the fire extinguishing hose. In addition, the front door that has fallen on the slide does not get caught in the front door, which is highly safe.

(Effect of slide opening / closing mechanism that slides to the front side of the fixed door)
Further, the front opening is provided in the upper part of the front surface of the housing, and the fire extinguishing plug device is arranged in the lower part of the front surface of the housing and on the back side which is the inner side of the front door and the housing of the fixed door. It is equipped with a slide opening / closing mechanism that slides the front door up and down, and the slide opening / closing mechanism slides the front door along the front side of the fixed door on the road side when the front door is opened. Therefore, even if the front door slides to the front side of the fixed door in the same slide opening / closing as in the conventional case, since the slide opening / closing mechanism is arranged in the housing, the problem of dust adhering to the slide opening / closing mechanism does not occur.

(Effect of shock absorber with open front door)
In addition, since a shock absorber that functions at the open position of the front door is provided, the front door that has been opened slides down due to its own weight. Therefore, by providing the shock absorber, it is smooth without causing an impact due to the fall. It is possible to open the door.

(Effect of low friction contact on the door surface)
In addition, since the front door and the fixed door are provided with a low-friction contact member on the opposite door surface, when the front door is released from holding, the front door slides while sliding against the fixed door surface due to its own weight. Friction when falling is reduced, and the front door can be smoothly slid down and opened.

(Effect of front opening and rear opening of the upper door)
In addition, the upper door can be opened before opening by rotating from the road side toward the tunnel wall surface side and after opening by rotating from the tunnel wall surface side toward the road side. Therefore, in the event of a fire caused by a vehicle accident, the user opens the front door facing the road and opens the upper door forward, so that the upper front and upper surfaces of the housing containing the fire hose are large. It is opened and the fire hose can be easily pulled out to extinguish the fire.

In addition, if the vehicle stops in front of the fire hydrant device and the user cannot operate from the road side, the user climbs the observer passage, bends down and opens the upper door rearward to make the stopped vehicle. The fire can be extinguished by easily pulling out the fire extinguishing hose without being hindered.

In addition, since the upper door functions as a fence when it opens to the road side, there is a risk that the user will fall to the road side when pulling out the fire extinguishing hose from the upper opening, and the nozzle taken out from the inside It is also possible to prevent the hose from being dropped on the road side.

Since the effect of the tunnel fire hydrant equipment of the present invention is the same as that of the tunnel fire hydrant device described above, the description thereof will be omitted.

Explanatory drawing showing tunnel emergency equipment including fire hydrant equipment installed in a shield tunnel Explanatory drawing showing the appearance of the fire hydrant storage box from the front, the plane and the side Explanatory drawing showing the internal structure of the fire hydrant storage box from the front, plane and side Explanatory drawing showing the fire hydrant storage box with the front door and the upper door closed from the front and the plane. Explanatory drawing showing the functional configuration of the first door opening / closing mechanism that releases the lock with the upper door and slides open the front door. Explanatory drawing showing the slide opening and closing structure of the front door in cross section A perspective view showing the slide opening / closing mechanism of FIG. 6 taken out. Explanatory drawing showing a cross-sectional view of a first door opening / closing mechanism that opens the upper door forward and slides open the front door and a third door opening / closing mechanism that opens the upper door rearward. Explanatory drawing showing a cross-sectional view of a second door opening / closing mechanism in which the upper door is locked at a closed position. Explanatory drawing showing the fire hydrant storage box with the upper door opened forward and the front door slid down to open from the front and plane. Explanatory drawing showing the part of the first door opening / closing mechanism and the second door opening / closing mechanism of the fire hydrant storage box with the upper door opened in front in cross section. Explanatory view showing the part of the second door opening / closing mechanism of the fire hydrant storage box with the upper door opened forward in cross section. Explanatory drawing showing the fire hydrant storage box with the upper door opened rearward in front and in a plane Explanatory drawing showing the part of the 1st door opening / closing mechanism and the 3rd door opening / closing mechanism of the fire hydrant storage box with the upper door opened rearward in cross section. Explanatory drawing showing the part of the second door opening / closing mechanism of the fire hydrant storage box with the upper door opened rearward in cross section. Explanatory drawing showing the water discharge control mechanism in cross section as seen from the road surface side together with the fire hydrant storage box on the observer passage side. Explanatory drawing which showed the other embodiment of the slide opening and closing structure of a front door in a cross section A perspective view showing the slide opening / closing mechanism of FIG. 6 taken out. Explanatory drawing which showed the other embodiment of the slide opening and closing structure of a front door in a cross section Explanatory drawing which showed embodiment of slide opening and closing structure which slides front door in front of fixed door in cross-section

[Overview of emergency tunnel equipment]
FIG. 1 is an explanatory diagram showing tunnel emergency equipment including a fire hydrant equipment installed in a tunnel of a motorway. 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, and in this example, the road 15 is provided. Road 15 has two lanes in one direction.

An observer passage 14 is provided along the tunnel wall surface 12 on the left side of the road 15 partitioned by the floor slab 18, and the internal space below the observer passage 14 is used as a duct 22 and conduits and the like are laid. .. The observer passage 14 has a size of, for example, 90 cm in height and 70 cm in width.

The lower side of the floor slab 18 on which the road 15 is formed is divided into a plurality of sections in the lateral direction of the tunnel. For example, the section located under the observer passage 14 is used as the management passage 20 and also. The management passage 20 is used as an emergency evacuation passage in the event of a fire 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 device of the fire hydrant equipment 16 is separately installed in the fire hydrant storage box 30 in which the hose is stored and the water discharge control mechanism storage unit 150. ..

The fire hydrant storage box 30 is arranged in a fire hydrant embedding portion that is hollowed out in a box shape over the road surface of the observer passage 14 and the wall surface on the road 15 side. The water discharge control mechanism storage unit 150 is arranged in the management passage 20 below the fire hydrant storage box 30, and the branch pipe 24a branched from the water supply main 24 is drawn in, and the fire hydrant storage box 30 is supplied with fire extinguishing water. The water supply pipe 25 is set up.

[Fire hydrant equipment]
FIG. 2 is an explanatory view showing the appearance of the fire hydrant storage box from the front, the plane and the side surface, and FIG. 3 is an explanatory view showing the internal structure of the fire hydrant storage box from the front, the plane and the side surface.

(Exterior structure of fire hydrant storage box)
As shown in FIG. 2, the fire hydrant storage box 30 of the fire hydrant equipment 16 is embedded and installed in the internal space under the road surface of the observer passage 14. In the fire hydrant storage box 30, as shown in FIG. 2A, the fixed door 33 is arranged below the center of the front surface of the housing 31, and the front door 32 is slidable in the vertical direction above the fixed door 33. Is located in.

Further, as shown in FIG. 2B, an upper door 36 having the same width as the front door 32 is arranged at the center of the upper surface of the fire hydrant storage box 30 on the road surface side of the observer passage 14. As shown in FIG. 2C, the upper door 36 can be opened forward as shown by the upper door 36a and as shown by the upper door 36b.

Here, the front opening indicated by the upper door 36a means that the door is opened and closed with the rear edge portion on the depth side of the upper door 36 as an axis, and the rear opening indicated by the upper door 36b means that the upper door 36 is opened and closed. It means that it is opened and closed around the front edge of the front.

The front door 32 and the upper door 36 are locked in a closed state, and when the user operates from the road 15 side, when the front opening handle 34 is opened, the front door 32 is locked to the upper door 36. The front door 32 is released and dropped to the back side of the fixed door 33 by its own weight by the slide opening / closing mechanism arranged on the back side of the door to open the upper front surface of the fire hydrant storage box 30, and the upper door 36 is opened forward. , The upper surface of the fire hydrant storage box 30 is opened.

Further, when the user operates from the observer passage 14 side, when the rear opening handle 38 is opened, the lock of the upper door 36 with respect to the housing 31 is released, and the upper door 36 is rear-opened. The upper surface of the fire hydrant storage box 30 is opened.

A notification device panel 42 is provided at the upper left portion of the front surface of the fire hydrant storage box 30. The reporting device panel 42 is provided with a red indicator lamp 44, a transmitter 45, a telephone jack 46, and a response lamp 48. The red indicator light 44 is constantly lit so that the location of the fire hydrant equipment can be seen from a distance. In the event of a fire, when the transmitter 45 is pressed and the push button switch is turned on, the transmission signal is transmitted to the disaster prevention receiver of the monitoring center to issue a fire alarm, and the response signal is sent from the fire receiver accordingly, and the response lamp. 48 is turned on, and the red indicator light 44 is further blinked.

(Internal structure of fire hydrant storage box)
As shown in FIG. 3, the lower inside of the fire hydrant storage box 30 is a hose storage portion 50, and the hose 60 having a shape-retaining structure is wound horizontally inward. Here, since the width of the fire hydrant storage box 30 is about 1.4 meters and the depth is about 0.35 meters, the length of one turn of the hose 60 internally wound around the hose storage portion 50 is approximately 3.5 meters. Since the hose length is about 30 meters and the hose length is 30 meters or more, the hose 60 may be wound inward for 9 turns or more.

A hose guide 52 provided with guide pipes 54 and 56 is arranged in the center of the fire hydrant storage box 30. The hose guide 52 uses a metal pipe, and two L-shaped bent guide pipes 56 from the upper surface to the front are arranged inside the openings of the front door 32 and the upper door 36 shown in FIG. The guide pipe 54 is arranged sideways at the center of the hose and both ends are fixed to the guide pipe 56. With the front door 32 and the upper door 36 open, the upper front surface and the subsequent upper opening are the guide pipes 54 and 56. By partitioning with, a take-out space for the hose 60 is formed.

As shown in FIG. 10B, the guide pipes 54 arranged in the lateral direction are offset inward in order to avoid contact with the bearing member 78 fixed to the back surface of the front door 32 due to the door descending. Are arranged.

Further, the guide pipe 56 has an upper door support structure in which the upper part thereof is located on the lower surface of the closed upper door 36 and the upper door 36 is placed on the guide pipe 56 in a closed state to support the guide pipe 56. Here, the upper door 36 has a length of more than 1 meter or a length of 1 meter or less along the observer passage 14, but the guide pipes 56 are located at two places of the door opening in the front-rear direction and are above. The door 36 is supported, and even if a person gets on the closed upper door 36, sufficient support strength is obtained by supporting the door 36 with the guide pipe 56.

Further, as shown in FIG. 10B, a stepped receiving portion 57 made of a plate member fixed to the housing 31 side is formed inside both ends of the upper door 36, and the upper door 36 is formed on the stepped receiving portion 57. By riding on both ends of the door, sufficient support strength is obtained together with the support by the guide pipe 56.

A nozzle holder 64 is arranged on the back surface of the upper door 36, and a bubble nozzle 62 provided at the tip of the hose 60 is detachably locked to the nozzle holder 64. Therefore, when the upper door 36 is opened forward or backward, the foam nozzle 62 held on the back surface of the door appears at the upper part of the fire hydrant storage box 30.

The position where the foam nozzle 62 held on the back surface of the door by opening the front of the upper door 36 appears is in any range of approximately 0.9 to 1.3 meters from the road 15, which is a user standing on the road 15. Since the foam nozzle 62 appears in front of the door, which corresponds to the range from the waist to the shoulder, the foam nozzle 62 can be easily taken out.

Further, the position where the bubble nozzle 62 held on the back surface of the door when the upper door 36 is opened rearward appears is in any range of approximately 0.2 to 0.4 meters from the road surface of the observer passage 14. The foam nozzle 62 appears in front of the user who bends down to 14 and operates the rear opening handle 38, and the user can easily take out the foam nozzle 62 from the observer passage 14 side.

An operation box 66 is arranged on the upper side of the guide pipe 56 arranged on the right side in the fire hydrant storage box 30, and a fire hydrant valve opening / closing lever 68 is provided on the operation box 66 and is provided inside the operation box 66. The manual pilot valve is opened and closed. When the fire hydrant valve opening / closing lever 68 is opened, the manual pilot valve is opened, and the separately arranged fire hydrant valves can be opened remotely.

Pilot pipes 166a and 166b are connected from below to the manual pilot valve provided in the operation box 66. The pilot pipes 166a and 166b are connected to the manual pilot valve in the operation box 66 through the pipe duct 65 arranged on the right side of the guide pipe 56 from the lower side.

As shown in the plane of FIG. 3B, the hose 60 internally wound around the hose storage portion 50 is wound in a slightly curved state inward at the guide pipe 56 and the piping duct 65.

[Opening and closing mechanism for front and upper doors]
FIG. 4 is an explanatory view showing the fire extinguisher storage box with the front door and the upper door closed from the front and the plane, and FIG. 5 shows the function of the first door opening / closing mechanism for releasing the lock with the upper door and sliding the front door open. Explanatory view showing the configuration, FIG. 6 is an explanatory view showing the slide opening / closing structure of the front door in a cross section, FIG. 7 is a perspective view showing the slide opening / closing mechanism of FIG. 6 taken out, and FIG. 8 shows the upper door opening forward. An explanatory view showing a cross-sectional view of a first door opening / closing mechanism that slides open the front door and a third door opening / closing mechanism that opens the upper door rearward. FIG. 9 shows opening and closing the second door with the upper door locked in the closed position. It is explanatory drawing which showed the mechanism in the cross section.

(Front opening mechanism and rear opening mechanism)
As shown in FIGS. 4 to 9, the upper door 36 arranged on the upper surface of the fire hydrant storage box 30 has a front opening mechanism operated by the front opening handle 34 and a rear opening mechanism operated by the rear opening handle 38. Be prepared.

The front opening mechanism of the upper door 32 locks the upper part of the front door 32 by the first door opening / closing mechanism 70 and holds the upper door 36 in the closed position when the upper door 36 is in the closed position shown in the drawing. When the front opening handle 34 arranged downward on the front edge of the door is lifted up (opening operation), the front door 32 is unlocked from the upper door 36, and the slide is dropped by the slide opening / closing mechanism arranged on the back side of the door. The front is opened.

In the slide opening / closing mechanism for opening / closing the front door 36, guide rods 120 are erected at two locations on both sides in the housing 31 on the back side of the door, and a hollow cylinder 122 arranged on the back side of the front door 32 is provided with respect to the guide rod 120. It is slidably fitted. The details of the slide opening / closing mechanism will be clarified later.

Further, in response to the front opening operation of opening the upper door 36 in the depth direction, the second door opening / closing mechanism 72 releases the lock with the housing 31 side, and the third door opening / closing mechanism arranged on the depth side of the upper door 36 is released. The upper surface is opened by opening the upper door 36 forward with the axis center line 85 of 74 as the rotation axis.

When the upper door 36 is in the closed position, the rear opening mechanism of the upper door 36 locks the upper door 36 to the housing 31 side by the third door opening / closing mechanism 74 and holds the upper door 36 in the closed position. When the rear opening handle 38 provided on the rear edge side of the 36 is operated, the lock with the housing 31 side is released, and the first door opening / closing mechanism 70 and the second door arranged on the front edge side of the upper door 36 are released. The upper surface is opened by opening the upper door 36 rearward with the axis center line 75 of the opening / closing mechanism 72 as the rotation axis.

(1st door opening / closing mechanism)
As shown in FIGS. 4 and 8, the first door opening / closing mechanism 70 arranged at the center of the upper part of the front door 32 and the center of the front edge of the upper door 36 has axes on both sides from the handle body 34a on the back side of the front opening handle 34. A member (first shaft member) 76 is projected, and the tip of the shaft member 76 is inserted into a shaft hole of a bearing member 78 fixed to the back surface of the front door 32, whereby the front door is inserted into the upper door 36. 32 is locked and held in the closed position.

When the front opening handle 34 is lifted up, the shaft member 76 is pulled inward and comes out of the shaft hole of the bearing member 78 to unlock the front door 32, and the front door 32 is arranged on the back side of the door by its own weight. It slides along the slide opening / closing mechanism and falls to open the upper part of the front surface.

As shown in FIG. 5A, the details of the first door opening / closing mechanism 70 are such that one end of a pair of bent links 88 is connected by a moving fulcrum 90 in the handle body 34a, and the bent position of the link 88 rotates. It is fixed to the handle body 34a side as a fulcrum 92, the other end of the link 88 is connected to the fulcrum 96 at the shaft end of the shaft member 76 as a slide fulcrum 94, and the moving fulcrum 90 is shown upward by a spring 98. Is being urged to.

When the front opening handle 34 is not operated, the link 88 rotates outward by receiving the force of the spring 98, so that the shaft member 76 is fitted into the shaft hole of the bearing member 78, and the front door is inserted into the upper door 36. 32 is locked.

When the front opening handle 34 is lifted up, as shown in FIG. 5B, the moving fulcrum 90 moves downward against the spring 98 via a link mechanism (not shown), whereby the link 88 turns inward. By moving and pulling the shaft member 76 inward, the tip of the shaft member 76 is pulled out from the shaft hole of the bearing member 78, the front door 32 is unlocked, and the front door 32 slides and falls due to its own weight. To open the upper part of the front surface.

The first door opening / closing mechanism 70 is not limited to the link mechanism shown in FIG. 5, and includes an appropriate link mechanism that pulls the shaft member 76 inward by lifting up the front opening handle 34 and pulls it out from the shaft hole of the bearing member 78. Is done.

(2nd door opening / closing mechanism)
As shown in FIGS. 4B and 9, the second door opening / closing mechanism 72 arranged at both ends of the front edge of the upper door 36 is a shaft member (second) by a support member 81 fixed inside the upper door 36. The shaft member) 80 is cantilevered and supported while floating from the back surface of the door, and is detachably arranged from above with respect to the bearing member 82 fixed to the housing 31 side.

The second door opening / closing mechanism 72 is arranged on the same shaft center line 75 as the first door opening / closing mechanism 70, and the shaft center line 75 serves as a rotation center when the upper door 36 is rear-opened.

As the details of the second door opening / closing mechanism 72 are taken out and shown in FIG. 9B, the shaft member 80 cantilevered and supported inside the upper door 36 rotates on the bearing member 82 fixed to the housing 31 side. It is fitted freely.

The bearing member 82 receives the shaft member 80 and rotatably supports the semi-cylindrical open bearing member 104 that opens upward, and the upper side of the open bearing member 104 is made of an elastic material such as rubber. A pair of ball catches 106 are arranged to form a ball catch mechanism that detachably supports the shaft member 80 from above with respect to the open bearing member 104.

Further, a slit 108 is formed at the upper end of the front door 32, and a gap is formed which allows the support member 81 supporting the shaft member 80 to rotate when the upper door 36 is opened rearward.

(3rd door opening / closing mechanism)
As shown in FIGS. 4B and 8, the third door opening / closing mechanism 74 arranged at the center of the rear edge of the upper door 36 has shaft members (third shaft) on both sides from the handle body on the back side of the rear opening handle 38. The member) 84 is projected, and the tip of the shaft member 84 is inserted into the shaft hole of the bearing member 86 fixed to the inner surface of the back surface of the housing 31, and the rear edge side of the upper door 36 is on the housing 31 side. It is locked and held in the closed position.

When the rear opening handle 38 is lifted up (opened), the shaft member 84 is pulled inward and comes out of the shaft hole of the bearing member 86, so that the lock on the rear edge side of the upper door 36 is released and the upper door 36 is released. It can be opened rearward around the axis center line 75 by the first door opening / closing mechanism 70 and the second door opening / closing mechanism 72 arranged on the front edge side, thereby opening the upper part.

The mechanical structure of the third door opening / closing mechanism 74 that unlocks the upper door 36 by lifting up the rear opening handle 38 has the same mechanical structure as the first door opening / closing mechanism 70 shown in FIG.

(Front door slide opening / closing mechanism)
As shown in FIGS. 6A and 7, in the slide opening / closing mechanism 100 of the front door 32, the guide rod 120 is erected by the base 121 at the bottom of the housing 31 which is the back surface of the fixed door 33. The tip of the guide rod 120 is in contact with the inside of the upper door 36 in the closed position, and the tip of the rod supports the upper door 36.

A hollow cylinder 122 is fixed to the back side of the front door 32 so as to coincide with the vertical axis center line of the guide rod 120. The hollow cylinder 122 arranged on the back surface of the front door 32 is slidably fitted to the guide rod 120.

A stopper plate 124 is slidably fitted in the lower part of the guide rod 120 via a coil spring 126 for cushioning, and the coil spring 126 and the stopper plate 124 constitute a shock absorber. The shock absorber composed of the coil spring 126 and the stopper plate 124 is an example, and an appropriate shock absorber can be used.

Further, as shown in FIG. 7, a low friction coating 125 is applied to the back surface of the fixed door 33. When the front door 32 is slid down along the back surface of the fixed door 33, the two door surfaces rub against each other. Therefore, in order to reduce the frictional resistance in this case, for example, a low friction member is used on the back surface of the fixed door 33. A low friction coating layer 125 is formed using a friction material. In addition to the low-friction coating layer 125, the low-friction member may have rollers or the like arranged on either or both of the door surfaces that are in sliding contact with each other.

Further, a protective plate 128 is arranged around the guide rod 120 standing on the back side of the fixed door 33 so that the movement of the hollow cylinder 122 is not hindered with respect to the storage of the hose 60.

As shown in FIG. 4, the front door 32 is locked to the first door opening / closing mechanism 70 having a front opening handle 34 arranged at the lower part of the front edge of the upper door 36, and is held in the closed position. When the user operates the front opening handle 34, the front door 32 is unlocked by the first door opening / closing mechanism 70, and as shown in FIG. 6B, the hollow cylinder 122 arranged on the back side of the front door 32 is released. Is slid down along the guide rod 120, and the front door 32 is opened.

The hollow cylinder 122 that slides down together with the front door 32 hits the stopper plate 124 to compress the coil spring 126, and is smoothly stopped without generating an impact.

Since the slide opening / closing mechanism 100 is arranged in the housing 31 behind the front door 32 in the closed position and the fixed door 33 under the slide opening / closing mechanism 100, the slide opening / closing mechanism 100 is not exposed to the external tunnel atmosphere and has a tunnel atmosphere. When the front opening handle 34 is opened without the dust contained therein adhering to it, the unlocked front door 32 can be reliably opened by sliding down.

[Operation to open the upper door and front door from the road side]
10A and 10B are explanatory views showing a fire hydrant storage box in which the upper door is opened forward and the front door is slid down to be opened. FIG. 10A shows the front surface, and FIG. 10B shows FIG. A) shows a plane with the upper door as a YY cross section. Further, FIG. 11 is an explanatory view showing a cross section of the first door opening / closing mechanism and the second door opening / closing mechanism of the fire hydrant storage box with the upper door opened forward, and FIG. 12 shows the fire hydrant storage box with the upper door opened forward. It is explanatory drawing which showed the part of the 2nd door opening / closing mechanism in the cross section.

As shown in FIGS. 10 to 12, when the user operates the fire hydrant storage box 30 from the road side, when the front opening handle 34 is lifted up as shown in FIG. 10A, the upper door 36 is lifted. The front door 32 is unlocked, and the weight of the front door 32 causes the hollow cylinder 122 arranged on the back surface of the door to slide down along the guide rod 120 to open the door, forming the front opening 110.

Subsequently, when the user performs a front opening operation of opening the upper door 36 in the depth direction, as shown in FIG. 12, the shaft members 80 arranged on both sides of the front edge of the upper door 36 are pulled out from the bearing member 82. The lock on the front edge side with respect to the housing 31 side is released, the upper door 36 is opened forward around the axis center line 85 by the third door opening / closing mechanism 74 arranged on the depth side, and the upper opening 112 is formed. Will be done.

At this time, as shown in FIG. 11, the nozzle holder 64 arranged on the back side of the upper door 36 is located in front of the user on the road, and the nozzle holder 64 is shown in FIG. 3 (A). As described above, since the foam nozzle 62 is locked, the foam nozzle 62 appears in front of the eyes, and the foam nozzle 62 can be easily taken out and the hose 60 can be pulled out.

[Operation to open the upper door from the guard passage side]
FIG. 13 is an explanatory view showing the fire hydrant storage box with the upper door opened rearward in front and in a plane, FIG. 13 (A) shows the front, and FIG. 13 (B) shows the upper door of FIG. 13 (A) in Y. Shows a plane with a −Y cross section. FIG. 14 is an explanatory view showing a cross-sectional view of the first door opening / closing mechanism and the third door opening / closing mechanism of the fire hydrant storage box with the upper door opened rearward, and FIG. 15 shows the second door of the fire hydrant storage box with the upper door opened rearward. It is explanatory drawing which showed the part of the opening and closing mechanism in the cross section.

As shown in FIGS. 13 to 15, when the road user operates the fire hydrant storage box 30 from the guard passage side, the road user bends down from the guard passage and lifts up the rear opening handle 38. , As shown in FIG. 13A, the lock on the housing 31 side on the rear edge side of the upper door 36 is released, and the first door opening / closing mechanism 70 and the second door opening / closing mechanism 72 arranged on the front edge side are common. The upper door 36 is opened rearward about the axis center line 75 of the above, and the upper opening 112 is formed.

At this time, as shown in FIG. 15B, the support member 81 that cantileverly supports the shaft member 80 in a floating state on the back surface of the upper door 36 rotates outward, and the slit 108 formed in the front door 32. By passing through it, it is possible to rotate it to the outside of the front door 32.

Further, as shown in FIG. 14, the nozzle holder 64 arranged on the back side of the upper door 36 is located in front of the user who is crouching in the observer passage, and the nozzle holder 64 has FIG. 3 As shown in (A), since the foam nozzle 62 is locked, the foam nozzle 62 appears in front of the eyes, and the foam nozzle 62 can be easily taken out and the hose 60 can be pulled out.

[Water discharge control mechanism]
FIG. 16 is an explanatory view showing the water discharge control mechanism in cross section as viewed from the road side together with the fire hydrant storage box on the observer passage side.

(Structure of water discharge control mechanism)
As shown in FIG. 16, the water discharge control mechanism storage unit 150 is arranged in the management passage 20 below the internal space of the observer passage 14 in which the fire hydrant storage box 30 is arranged.

The water discharge control mechanism storage unit 150 is provided with a pressurized open type fire hydrant valve 152, an automatic pressure adjusting valve 154, and a foam mixer 156 as valves constituting the water discharge control mechanism.

The branch pipe 24a branched from the water supply main 24 is connected to the primary side of the fire hydrant valve 152, and the automatic pressure regulating valve 125 and the foam mixer 156 are connected following the fire hydrant valve 152. A pipe from the foam stock solution tank 158 is connected to the foam mixer 156, and the foam fire extinguishing water obtained by mixing the foam stock solution at a predetermined ratio with the fire extinguishing water flowing through the foam mixer 156 is passed through the water supply pipe 25 to the fire hydrant storage box 30. The hose 60 is supplied.

The fire hydrant valve 152 is provided with a piston 162 slidably provided in the cylinder chamber 160 as a valve opening / closing mechanism for pressurizing and releasing, and a valve body 165 is connected to the piston 162 by a piston rod on the opposite side of the cylinder chamber 160. A spring 164 is incorporated in the.

The fire hydrant valve 152 is normally closed. The fire hydrant valve 152 is closed by discharging fire extinguishing water from the cylinder chamber 160 to reduce the pilot pressure to zero, pushing the piston 162 in the closing direction by the spring 164, and bringing the valve body 165 into contact with the valve seat. The flow paths on the secondary side and the secondary side are closed to be in a closed state.

In order to open the fire hydrant valve 152, fire extinguishing water is supplied to the cylinder chamber 160 to pressurize the pilot pressure, so that the piston 162 is stroked outward against the spring 164 and the valve body 165 is separated from the valve seat. By communicating the primary side and the secondary side, the open state is established.

In order to open the fire hydrant valve 152 by remote control, the operation box 66 of the fire hydrant storage box 30 is provided with a manual pilot valve 170 that is opened and closed by the fire hydrant valve opening / closing lever 68.

The pilot pipe 166a drawn from the branch pipe 24a is connected to the primary side of the manual pilot valve 170, and the secondary side of the manual pilot valve 170 is connected to the cylinder chamber 160 of the fire hydrant valve 152 by the pilot pipe 166b. ..

In the present embodiment, the manual pilot valve 170 is directly opened and closed by the fire hydrant valve opening / closing lever 68, but the manual pilot valve 170 is arranged in another place in the fire hydrant storage box 30 and is wire-linked. It may be opened and closed remotely by such means.

(Operation of fire hydrant equipment)
In the event of a vehicle accident involving a fire in the tunnel 10, the user goes to the fire hydrant facility 16 near the location of the fire and presses the transmitter 45 of the notification device panel 42 shown in FIG. 2 to receive disaster prevention at the monitoring center. A fire notification signal is transmitted to the panel, a confirmation response signal is received from the disaster prevention receiving panel, the response lamp 48 is turned on, and the red indicator lamp 44 blinks to confirm the completion of the notification to the monitoring center side.

Subsequently, in order to extinguish the fire from the road 15 side, when the front opening handle 34 of the fire hydrant storage box 30 is operated to release the lock, the front door 32 slides down and is released, and the upper door 36 is opened in front. When opened, the bubble nozzle 62 locked to the back surface of the front-opened upper door 36 is exposed at the upper part.

The user removes the foam nozzle 62 from the nozzle holder 64 and pulls out the hose 60, and the hose 60 pulled out at this time is smoothly pulled out while sliding in contact with the guide pipes 54 and 56.

If the vehicle is stopped in front of the fire hydrant storage box 30 and cannot be operated from the front side, the user will operate from the observer passage 14.

Subsequently, when the fire hydrant valve opening / closing lever 68 provided in the operation box 66 arranged on the right side of the opening space of the fire hydrant storage box 30 is operated in the opening direction, the manual pilot valve 170 is opened and the fire is extinguished from the branch pipe 24a. Water is supplied to the cylinder chamber 160 of the fire hydrant valve 152 via the pilot pipe 166a, the manual pilot valve 170, and the pilot pipe 166b to pressurize the pilot pressure, causing the piston 162 to stroke outward against the spring 164, and the valve. The fire hydrant valve 152 is opened by separating the body 165 from the valve seat.

When the fire hydrant valve 152 is opened, fire extinguishing water from the water supply main 24 flows from the water supply pipe 25 toward the hose 60 of the fire hydrant storage box 30 via the fire hydrant valve 152, the automatic pressure regulating valve 154, and the foam mixer 156, and bubbles are generated. When the foam stock solution is mixed at a predetermined ratio in the mixer 156 and the foam fire extinguishing water is discharged from the foam nozzle 62 of the hose 60 drawn from the fire hydrant storage box 30, the fire extinguishing foam formed by entraining air is released. Will be done.

Further, when the fire hydrant valve 152 is opened, it is necessary to send a pump start signal to the fire hydrant pump equipment to start the fire hydrant valve 152. Therefore, a pressure switch 175 that detects water pressure and turns on is set on the secondary side of the fire hydrant valve 152. It is provided. Instead of the pressure switch 175, the operation box 66 may be provided with a fire hydrant valve open detection switch that is turned on by opening the fire hydrant valve opening / closing lever 68 and transmits a pump start signal.

When the fire is extinguished and the fire extinguishing work is completed, the fire hydrant valve opening / closing lever 68 is returned to the closed position, and the manual pilot valve 170 is closed. Subsequently, when the manual pilot valve 170 is closed, the water in the cylinder chamber 160 is slowly drained through the orifice 176, the pilot pressure is reduced to zero, and the piston 162 is pushed back by the spring 164 to come into contact with the valve seat. As a result, the fire hydrant valve 152 is closed and the emission of fire extinguishing bubbles is stopped.

When inspecting the water discharge control mechanism, the person in charge goes to the water discharge control mechanism storage unit 150 arranged in the management passage 20 and opens the manual release valve 172 to supply fire extinguishing water to the cylinder chamber 160. The pilot pressure is pressurized, and the fire hydrant valve 152 can be opened to perform a predetermined water discharge test. In this case, the manual drain valve 174 may be opened in order to close the fire hydrant valve 152.

[Other embodiments of the slide opening / closing mechanism]
17A and 17B are explanatory views showing another embodiment of the slide opening / closing structure of the front door in a cross section, FIG. 17A shows a door closed state, and FIG. 17B shows a door open state. Further, FIG. 18 is a perspective view showing the slide opening / closing mechanism of FIG. 17 taken out.

As shown in FIGS. 17A and 18, in the slide opening / closing mechanism 100 of the front door 32 according to the present embodiment, the guide rod 120 stands up on the bottom of the housing 31 which is the back surface of the fixed door 33 by the base 121. A pair of disc-shaped guide members 130 are projected and fixed to the back side of the front door 32 so as to coincide with the vertical axis center line of the guide rod 120, and a through hole of the disc-shaped guide member 130 is slid on the guide rod 120. It is fitted so that it can move freely.

Further, in the lower part of the guide rod 120, a shock absorber is configured by a coil spring 126 and a stopper plate 124. Further, as shown in FIG. 18, a low friction coating layer 125 is formed on the back surface of the fixed door 33 using a low friction material. Further, as shown in FIG. 17, a protective plate 128 is arranged around the guide rod 120 that stands up on the back side of the fixed door 33.

That is, in this embodiment, a pair of disc-shaped guide members 130 are provided instead of the hollow cylinder 122 of the slide opening / closing mechanism 100 shown in FIGS. 6 and 7, and the mechanical structure can be simplified.

Since the slide opening / closing mechanism 100 of the present embodiment is also arranged in the housing 31 which is the back side of the front door 32 in the closed position and the fixed door 33 below it, it is not exposed to the external tunnel atmosphere. When the front opening handle 34 is opened without the dust contained in the tunnel atmosphere adhering to the tunnel atmosphere, the unlocked front door 32 can be reliably opened by sliding down.

19A and 19B are explanatory views showing another embodiment of the slide opening / closing structure of the front door in a cross section, FIG. 19A shows a door closed state, and FIG. 19B shows a door open state.

As shown in FIG. 19A, in the slide opening / closing mechanism 100 of the front door 32 according to the present embodiment, the fixing rod 132 is erected at the bottom of the housing 31 which is the back surface of the fixed door 33, and the fixing rod 132. A piston 134 is fixed to the tip of the door, and the piston 134 has a double piston structure.

A cylinder 136 is fixed to the back surface of the front door 32 so as to coincide with the vertical axis center line of the fixed rod 132, and the cylinder 136 is slidably fitted to the piston 134 fixed to the tip of the fixed rod 132. There is.

A shock absorber in which the stopper plate 124 is slidably fitted via the coil spring 126 for cushioning is provided in the lower portion of the guide rod 120. As the shock absorber, a throttle opening (orifice hole) for allowing air to enter and exit the cylinder 136 may be further provided above the cylinder 136.

Further, a low friction coating layer 125 is formed on the back surface of the fixed door 33 using a low friction material. In addition to the low-friction coating layer, the low-friction member may have rollers or the like arranged on either or both of the door surfaces that are in sliding contact with each other.

Further, a protective plate 128 is arranged around the fixed rod 132 erected on the back side of the fixed door 33 so that the movement of the cylinder 136 is not hindered with respect to the storage of the hose 60.

When the user operates the front opening handle 34, the front door 32 is unlocked, and as shown in FIG. 19B, the cylinder 136 arranged on the back side of the front door 32 is fixed to the tip of the fixing rod 132. The front door 32 is opened by sliding down with respect to the piston 134.

The cylinder 136, which slides down together with the front door 32, hits the stopper plate 124, compresses the coil spring 126, and is smoothly stopped without generating an impact. Further, when the throttle opening is formed in the upper part of the cylinder 136, the air discharged as the cylinder 136 is lowered is throttled by the throttle opening, so that the cylinder 136 is lowered at a slow speed.

Also in the present embodiment, since the slide opening / closing mechanism 100 is arranged in the housing 31 which is the back side of the front door 32 in the closed position and the fixed door 33 below it, it is exposed to the external tunnel atmosphere. When the front opening handle 34 is opened without the dust contained in the tunnel atmosphere adhering to the tunnel atmosphere, the unlocked front door 32 can be reliably opened by sliding down.

[Slide opening / closing mechanism that slides to the front side of the fixed door]
20A and 20B are explanatory views showing an embodiment of a slide opening / closing structure in which the front door is slid to the front side of the fixed door in a cross section. FIG. 20A shows a door closed state, and FIG. 20B shows a door open state. Indicates the state.

As shown in FIG. 20A, in the present embodiment, the front door 32 is arranged on the front side of the fixed door 33, and the front door 32 is slid down along the front surface of the fixed door 33. Is provided with a slide opening / closing mechanism 100.

In the slide opening / closing mechanism 100 of the front door 32 according to the present embodiment, the cylinder 144 stands up at the bottom of the housing 31 which is the back surface of the fixed door 33. A front door guide rod 138 is fixed to the back surface of the front door 32 by a support member 140 in a state of projecting from the upper end of the back surface in accordance with the vertical axis center line of the cylinder 144.

A piston 142 having a double piston structure is fixed to the lower end of the front door guide rod 138, and the piston 142 is slidably fitted into the cylinder 144. A bellows 145 is mounted between the front door guide rod 138 taken out from the piston 142 and the cylinder opening to seal the inside of the cylinder 144.

The bottom of the cylinder 144 is provided with a shock absorber in which a stopper plate 146 is slidably fitted via a coil spring 148 for cushioning. As the shock absorber, a throttle opening (orifice hole) for allowing air to enter and exit the cylinder 144 may be further provided below the cylinder 144.

Further, a low friction coating layer is formed on the back surface of the front door 32 by using a low friction material. In addition to the low-friction coating layer, the low-friction member may have rollers or the like arranged on either or both of the door surfaces that are in sliding contact with each other.

When the road user operates the front opening handle 34, the front door 32 is unlocked and supported by the lower end of the front door guide rod 138 fixed to the back side of the front door 32 as shown in FIG. 20 (B). The piston 142 is slid down while sliding in the cylinder 144, and the front door 32 is opened.

The piston 142, which slides down together with the front door 32, hits the stopper plate 146 to compress the coil spring 148, and is smoothly stopped without generating an impact. Further, when a throttle opening is formed in the lower part of the cylinder 144, the air discharged from the cylinder 144 is throttled by the throttle opening as the piston 142 descends, so that the piston 142 is lowered at a slow speed. ..

In the present embodiment, as in Patent Document 1, the front door 32 is slid down along the outside of the fixed door 33, but the slide opening / closing mechanism 100 is the front door 32 in the closed position and below it. Since it is arranged in the housing 31 on the back side of the fixed door 33, it is not exposed to the external tunnel atmosphere, the dust contained in the tunnel atmosphere does not adhere, and the front opening handle 34 is opened. The front door 32, which has been unlocked, can be reliably opened by sliding down.

[Modification of the present invention]
(Slide opening / closing mechanism)
The front door slide opening / closing mechanism shown in the above embodiment is an example, and the present invention is not limited to this, and includes a slide opening / closing mechanism having an appropriate configuration that is arranged in a housing on the back side of the door and does not come into contact with the outside air. ..

(Upper door opening / closing mechanism)
The above embodiment exemplifies, but is not limited to, a door opening / closing mechanism in which the upper door is opened forward and backward. For example, for a door opening / closing mechanism in which the upper door is only opened forward, similarly, the slide opening / closing mechanism shown in the above embodiment can be combined with the slide opening / closing mechanism that slides down by unlocking the front door by opening the upper door. it can.

(1st to 3rd door opening / closing mechanism)
The first to third door opening / closing mechanisms shown in the above embodiment are an example, in which the front door is unlocked and slid open as the upper door opens forward, and the front door is held in the closed position. If it is a function to open the upper door backward as it is, an appropriate mechanism is included.

(Foam fire hydrant equipment)
The above embodiment takes as an example a foam fire hydrant facility that discharges fire extinguishing foam, but the present invention is not limited to this, and a fire hydrant facility that discharges fire extinguishing water may be used.

(Other)
Further, the present invention includes appropriate modifications that do not impair its purpose and advantages, and is not limited by the numerical values shown in the above embodiments.

10: Tunnel 12: Tunnel wall surface 14: Observer passage 15: Road 16: Fire hydrant equipment 18: Floor slab 20: Management passage 22: Duct 24: Water supply main pipe 24a: Branch pipe 25: Water supply pipe 30: Fire hydrant storage box 31 : Housing 32: Front door 33: Fixed door 34: Front opening handle 34a: Handle body 36: Upper door 38: Rear opening handle 42: Notification device panel 52: Hose guide 54, 56: Guide pipe 57: Stepped receiving part 60: Hose 62: Bubble nozzle 64: Nozzle holder 66: Operation box 68: Fire hydrant valve opening / closing lever 70: First door opening / closing mechanism 72: Second door opening / closing mechanism 74: Third door opening / closing mechanism 75, 85: Axis center line 76 , 80, 84: Shaft member 78, 82, 86: Bearing member 81: Support member 100: Slide opening / closing mechanism 104: Opening Bearing member 106: Ball catch 108: Slit 110: Front opening 112: Upper opening 120: Guide rod 122: Hollow cylinder 124, 146: Stopper plate 126, 148: Coil spring 128: Protective plate 130: Disc-shaped guide member 132: Fixed rod 134, 142: Piston 136, 144: Cylinder 145: Bellows 150: Water discharge control mechanism storage 152: Fire hydrant valve 154: Automatic pressure regulating valve 156: Foam mixer 158: Foam stock solution tank 160: Cylinder chamber 162: Piston 164: Spring 165: Valve body 166a, 166b: Pilot piping 170: Manual pilot valve 172: Manual release valve 174: Manual Drain valve 175: pressure switch 175: pressure switch 176: orifice

Claims (22)

In a tunnel fire hydrant facility equipped with a fire hydrant device that is embedded in a guard passage along the tunnel wall and contains a fire hose inside the housing.
The fire hydrant device
A front door that can be opened and closed from the front opening provided on the front of the housing on the road side,
An upper door in which an upper surface opening provided on the upper surface of the housing on the road surface side of the observer passage is arranged so as to be openable and closable, and
An opening mechanism that is operated by the opening operation unit to open the upper door,
With
The opening mechanism holds the front door together with the upper door in the closed position when the upper door is in the closed position, and when the opening operation unit is operated when the upper door is in the closed position. A fire hydrant facility in a tunnel, characterized in that the holding of the upper door and the front door is released so that the upper door can be opened, and the front opening is opened by opening the front door.
In the fire hydrant equipment in the tunnel according to claim 1.
The front opening is provided in the upper part of the front surface of the housing.
Further, the fire hydrant device includes a fixed door at the lower part of the front surface of the housing.
A fire hydrant facility in a tunnel, characterized in that the opening of the front door is an opening by dropping along the front surface of the fixed door on the road side or the back surface of the housing.
In the fire hydrant equipment in the tunnel according to claim 1.
The front opening is provided in the upper part of the front surface of the housing.
Further, the fire hydrant device is
A fixed door at the bottom of the front of the housing
A slide opening / closing mechanism that is arranged on the back side of the front door and the fixed door, which is the inner side of the housing, and slides the front door in the vertical direction.
With
The slide opening / closing mechanism is a fire hydrant facility in a tunnel, characterized in that the front door is slid down along the back surface of the fixed door when the front door is opened.
In the fire hydrant equipment in the tunnel according to claim 3.
The slide opening / closing mechanism
A guide rod standing on the back side of the fixed door and the front door,
A cylinder arranged in the vertical direction on the back surface of the front door and slidable on the guide rod,
Fire hydrant equipment in the tunnel, which is characterized by being equipped with.
In the fire hydrant equipment in the tunnel according to claim 3.
The slide opening / closing mechanism
A guide rod standing on the back side of the fixed door and the front door,
A fire hydrant facility in a tunnel, which is arranged in the vertical direction on the back surface of the front door and includes a slideable guide member on the guide rod.
In the fire hydrant equipment in the tunnel according to claim 3.
The slide opening / closing mechanism
A fixed rod standing on the back side of the fixed door and
A piston arranged at the tip of the fixed rod and
A cylinder arranged in the vertical direction on the back surface of the front door and slidable on the piston,
Fire hydrant equipment in the tunnel, which is characterized by being equipped with.
In the fire hydrant equipment in the tunnel according to claim 1.
The front opening is provided in the upper part of the front surface of the housing.
Further, the fire hydrant device is
A fixed door at the bottom of the front of the housing
A slide opening / closing mechanism that is arranged on the back side of the front door and the fixed door, which is the inner side of the housing, and slides the front door in the vertical direction.
With
The slide opening / closing mechanism is a fire hydrant facility in a tunnel, characterized in that when the front door is opened, the front door is slid down along the front surface of the fixed door on the road side.
In the fire hydrant facility in the tunnel according to claim 7.
The slide opening / closing mechanism
A cylinder standing on the back side of the fixed door and
A front door guide rod fixed to the upper end of the back surface of the front door and supported in an extending state below the back surface of the front door.
A piston arranged at the tip of the front door guide rod and slidable on the cylinder,
Fire hydrant equipment in the tunnel, which is characterized by being equipped with.
In the in-tunnel fire hydrant equipment according to any one of claims 2 to 8.
An in-tunnel fire hydrant facility equipped with a shock absorber that functions in the open position of the front door.
In the in-tunnel fire hydrant equipment according to any one of claims 2 to 9.
A fire hydrant facility in a tunnel, characterized in that a low friction contact member is provided on a door surface facing the front door and the fixed door.
In the in-tunnel fire hydrant equipment according to any one of claims 1 to 10.
The upper door can be opened by rotating and opening from the road side toward the tunnel wall surface side and by rotating and opening from the tunnel wall surface side toward the road side. A fire hydrant facility in a tunnel that is characterized by this.
It is a fire hydrant device that is embedded in the guard passage along the tunnel wall and has a fire hose housed inside the housing.
A front door that can be opened and closed from the front opening provided on the front of the housing that is on the road side in the installed state, and
An upper door in which the upper surface opening provided on the upper surface of the housing, which is the road surface side of the observer passage in the installed state, is arranged so as to be openable and closable, and
An opening mechanism that is operated by the opening operation unit to open the upper door,
With
The opening mechanism holds the front door together with the upper door in the closed position when the upper door is in the closed position, and when the opening operation unit is operated when the upper door is in the closed position. A fire hydrant device in a tunnel, characterized in that the holding of the upper door and the front door is released so that the upper door can be opened, and the front opening is opened by opening the front door.
In the tunnel fire hydrant device according to claim 12,
The front opening is provided in the upper part of the front surface of the housing.
Further, the fire hydrant device includes a fixed door at the lower part of the front surface of the housing.
A fire hydrant device in a tunnel, characterized in that the opening of the front door is an opening by dropping along the front surface of the fixed door on the road side or the back surface of the housing on the inner side.
In the tunnel fire hydrant device according to claim 12,
The front opening is provided in the upper part of the front surface of the housing.
Further, the fire hydrant device is
A fixed door at the bottom of the front of the housing
A slide opening / closing mechanism that is arranged on the back side of the front door and the fixed door, which is the inner side of the housing, and slides the front door in the vertical direction.
With
The slide opening / closing mechanism is a fire hydrant device in a tunnel, characterized in that when the front door is opened, the front door is slid down along the back surface of the fixed door.
In the in-tunnel fire hydrant device according to claim 14.
The slide opening / closing mechanism
A guide rod standing on the back side of the fixed door and the front door,
A cylinder arranged in the vertical direction on the back surface of the front door and slidable on the guide rod,
A fire hydrant device in a tunnel, which is characterized by being equipped with.
In the in-tunnel fire hydrant device according to claim 14.
The slide opening / closing mechanism
A guide rod standing on the back side of the fixed door and the front door,
A guide member arranged in the vertical direction on the back surface of the front door and slidable on the guide rod,
A fire hydrant device in a tunnel, which is characterized by being equipped with.
In the in-tunnel fire hydrant device according to claim 14.
The slide opening / closing mechanism
A fixed rod standing on the back side of the fixed door and
A piston arranged at the tip of the fixed rod and
A cylinder arranged in the vertical direction on the back surface of the front door and slidable on the piston,
A fire hydrant device in a tunnel, which is characterized by being equipped with.
In the tunnel fire hydrant device according to claim 12,
The front opening is provided in the upper part of the front surface of the housing.
Further, the fire hydrant device is
A fixed door at the bottom of the front of the housing
A slide opening / closing mechanism that is arranged on the back side of the front door and the fixed door, which is the inner side of the housing, and slides the front door in the vertical direction.
With
The slide opening / closing mechanism is a fire hydrant device in a tunnel, characterized in that when the front door is opened, the front door is slid down along the front surface of the fixed door on the road side.
In the in-tunnel fire hydrant device according to claim 18.
The slide opening / closing mechanism
A cylinder standing on the back side of the fixed door and
A front door guide rod fixed to the upper end of the back surface of the front door and supported in an extending state below the back surface of the front door.
A piston arranged at the tip of the front door guide rod and slidable on the cylinder,
A fire hydrant device in a tunnel, which is characterized by being equipped with.
In the in-tunnel fire hydrant device according to any one of claims 13 to 19.
A fire hydrant installation device in a tunnel, which is provided with a shock absorber functioning at an open position of the front door.
In the in-tunnel fire hydrant device according to any one of claims 13 to 20,
A fire hydrant device in a tunnel, characterized in that a contact member having low friction is provided on a door surface facing the front door and the fixed door.
In the tunnel fire hydrant device according to any one of claims 12 to 21,
The upper door can be opened before opening by rotating from the road side toward the tunnel wall surface side and after opening by rotating from the tunnel wall surface side toward the road side. A fire hydrant device in a tunnel, which is characterized by this.

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