JP2023030153A - Fire hydrant facilities and fire hydrant apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a burden of inspection work of a fire hydrant apparatus with an inspection door.

SOLUTION: A fire hydrant apparatus buried and installed in a watchman passage along a tunnel wall surface and including a hose with a nozzle stored in a housing 31, comprises: an inspection door 100 configured to be opened by an inspector and fixed so as to close an opening provided on a front surface of the housing 31, when the fixation is released, being openable without being detached from the housing 31, and when being opened, capable of retaining the opening in the opened state; and a front door 32 disposed so as to be able to open/close a door opening provided on the inspection door 100 and being opened when the hose is pulled out to the outside. When the fixation of the inspection door 100 is released and the opening provided on the front surface of the housing 31 is opened, the front door 32 opens the door opening provided on the inspection door 100.

SELECTED DRAWING: Figure 10

COPYRIGHT: (C)2023,JPO&INPIT

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire hydrant facility and a fire hydrant device having a fire hydrant storage box for ejecting fire-extinguishing water or fire-extinguishing foam by pulling out a hose with a nozzle.

2. Description of the Related Art Conventionally, emergency equipment is installed in tunnels such as expressways and motorways in order to protect people and vehicles from fire accidents that occur in tunnels.

As such emergency equipment, fire detectors, manual reporting devices, and emergency telephones are installed to monitor and report fires, and fire hydrants are installed to extinguish fires and prevent the spread of fire. In order to protect against fires, a water spraying system that sprays water for fire extinguishing from a water spray head is installed, and the equipment of the emergency equipment is monitored and controlled by connecting it to the transmission line from the disaster prevention receiver installed in the monitoring center. ing.

For example, a fire hydrant system is installed at intervals of 50 meters along the side wall facing the observer's passage in the tunnel. are stored.

In addition, in the water spray equipment, an automatic valve device is installed on the side wall integrated with or near the fire hydrant device, and the water supply pipes raised from the automatic valve device are connected to multiple water spray heads placed in the upper part of the tunnel. ing.

JP 2014-83344 A JP 2006-181057 A JP 2008-055024 A JP 2009-285126 A Japanese Patent Application Laid-Open No. 2001-009053 Japanese Utility Model Laid-Open No. 64-037258 JP 2017-196109 A JP 2010-136946 A CD-ROM of Japanese Utility Model No. 06-048706

By the way, in the automatic valve device provided in the conventional water spray equipment, in order to inspect the automatic valve housed in the housing at the time of regular inspection, etc., an inspection door can be freely attached to and detached from the opening of the housing. is set in For example, the inspection door of the automatic valve is made of a steel plate with a thickness of several millimeters. The inspection door is suspended from the upper part of the opening of the housing. It is kept closed.

On the other hand, in the fire hydrant system, a fire hydrant door that opens downward is provided on the lower side of the housing opening, and a maintenance door that opens upward is provided on the upper side of the housing opening. It is possible to open the maintenance door and inspect the equipment in the housing, and there is no need for an inspection door that keeps the closed state by weight, unlike the automatic valve device.

By the way, in urban tunnels made by the shield construction method, etc., the fire hydrant system cannot be installed embedded in the tunnel wall, and it is necessary to embed the fire hydrant system on the side (wall surface) of the passageway for observers.

However, when a fire hydrant device with a door that opens forward like a conventional fire hydrant is installed in the passageway for guards, there is a problem that when the fire hydrant door opens, the fire hydrant exceeds the construction gauge and jumps out onto the road side.

In order to solve this problem, the applicant of the present application has installed a fire hydrant storage box embedded in the lifeguard passage, provided a front door that slides open and closes facing the road, and opens and closes upward on the lifeguard passage. We are studying a fire hydrant storage box with a structure that has an upper door that

According to the fire hydrant storage box embedded in the passage of the guards in this way, in the event of a fire due to a vehicle accident, the user can open the front door facing the road and open the nozzle wound inside the housing. You can pull out the attached hose to extinguish the fire. In addition, if the vehicle stops in front of the fire hydrant and operation from the front door is not possible, the upper door of the guard passage can be opened so that the vehicle can be rolled inward without being obstructed by the stopped vehicle. A hose with a nozzle can be pulled out to extinguish the fire. Furthermore, when the fire extinguishing work is finished, the hose is drained and then the hose is rolled back inside the housing.

By the way, when rewinding the hose into the housing after the fire extinguishing work is finished, the operator has to reach through the opening of the open front door or the upper door and wind the hose inside the housing. There is a problem that the opening of the door or the upper door is narrow to perform the hose unwinding operation, making it difficult to perform the hose unwinding operation. Also, during regular inspections, the state of the hose housed in the housing is checked by opening the front door or the upper door, but the narrow opening makes it difficult to inspect the hose.

When rewinding the hose into the housing from the front door opening, the front panel other than the front door becomes an obstacle, making it difficult to see the hose connection port at the bottom of the housing. Since the shoulder must be inserted, the hose must be unwound while the head and shoulders are inserted into the front door opening, which is accompanied by a great deal of effort as the operator must continue to maintain a painful posture.

Therefore, for the fire hydrant storage box embedded in the passage of the observer, an opening for inspection is formed on the front surface of the housing of the fire hydrant storage box for unwinding the hose and inspection work. As with the fire hydrant system, it is conceivable to provide an inspection door that also serves as the front panel.

However, in such a conventional inspection door, since it is made of sheet metal or the like having sufficient strength, the weight of the door is as heavy as 50 kg. After rewinding or after inspection, the work of attaching the inspection door is difficult, and if there are many fire hydrants installed, the work load increases.

An object of the present invention is to provide a fire hydrant device and a fire hydrant installation that reduce the burden of inspection work for a fire hydrant device provided with an inspection door.

(fire hydrant device)
The present invention relates to a fire hydrant device embedded in a guard passage along a tunnel wall surface and having a hose with a nozzle housed in a housing,
It is fixed so as to close an opening provided on a predetermined surface of the housing that can be opened by an inspector while embedded in the observer's passage, and does not come off from the housing when the fixation is released. an access door that is openable and capable of maintaining the opening in an open state when opened;
A door that is arranged so that the door opening provided in the inspection door can be opened and closed, and that is opened when the hose is pulled out to the outside;
with
The door opens the door opening provided on the inspection door when the inspection door is unlocked and the opening provided on the predetermined surface of the housing is opened.

(Inspection door not linked to door opening)
An inspection door in a closed state remains closed when the door is opened.

(Inspection door provided on the front of the housing)
The inspection door is fixed so as to close the front opening provided on the front surface of the housing on the road side in a state embedded in the observer passage, and can be opened when the fixation is released.
The door is a front door that is arranged so that a front door opening provided on the front surface of the inspection door on the road side can be opened and closed, and that is opened when the hose is pulled out to the outside.

(Inspection door without operating part for opening)
The inspection door is fixed by a fixing member so as to close the front opening, and does not have an operation part for releasing the fixing by the fixing member, so that it cannot be opened when the user pulls out the hose to the outside.

(fire hydrant equipment)
The present invention is a fire hydrant facility comprising an embedded portion that is an internal space under the road surface of a guard passage along the tunnel wall surface in the tunnel,
The fire hydrant device described above is embedded in the embedding part so that the upper surface is exposed to the road surface side of the guard passage and the front surface is exposed to the road side.

(basic effect)
The present invention relates to a fire hydrant device that is embedded in a passageway for observers along the wall of a tunnel and that houses a hose with a nozzle in a housing. A state in which an opening provided on a predetermined surface of a certain housing is fixed so as to close it, and when the fixing is released, it can be opened without being separated from the housing, and when it is released, the opening is opened. An inspection door that can be maintained at a constant temperature, and a door that is arranged so that the door opening provided in the inspection door can be opened and closed, and is opened when the hose is pulled out to the outside. When the opening provided on the specified surface is opened, the door opens the door opening provided on the inspection door, so by opening the inspection door, the inspection work of the door provided integrally with the inspection door can be performed. Makes it easy and safe. In addition, even if the inspection door is not supported by hand, the inspection door does not come off from the housing. It is possible to easily and safely perform the hose unwinding work for storing the hose in an inwardly wound state and the inspection work for the hose stored in the housing. In addition, it is not necessary to attach and detach the heavy inspection door from the housing, and the work of opening and closing the inspection door can be performed simply and safely. In addition, when extinguishing a fire, instead of opening the heavy inspection door, the hose inside the housing can be pulled out by opening the door provided in the door opening formed in the inspection door. Do not interfere with activities.

(Effect of inspection door not linked to door opening)
An inspection door that is in a closed state maintains the closed state when the door is opened. There is no unnecessary confusion when pulling the hose out.

(Effect of inspection door without operation part for opening)
The inspection door is fixed by a fixing member so as to close the front opening, and does not have an operation part for releasing the fixing by the fixing member, so it cannot be opened when the user pulls out the hose. To prevent an inspection door from being accidentally opened by a user when pulling out a hose to the outside.

Explanatory drawing showing tunnel emergency equipment including a fire hydrant installed in a tunnel of a motorway Explanatory diagram showing the appearance of a fire hydrant storage box in normal conditions Explanatory drawing showing the appearance of the fire hydrant storage box in Fig. 2 from the front and top An explanatory view showing the appearance of the fire hydrant storage box in Fig. 2 from the side Explanatory drawing showing the part of the front-opening handle of the fire hydrant storage box provided with the front-opening mechanism Explanatory drawing showing the mechanical structure of the front opening mechanism that opens the second upper door and slides it open when the front door is dropped. Explanatory diagram showing the opening operation of the front door and the second upper door when operating from the road side Explanatory diagram showing the opening operation of the first upper door when operated from the observer passage side Explanatory diagram showing the internal structure of a fire hydrant storage box Explanatory diagram showing the state in which the inspection door is opened forward Side view showing the state in which the inspection door is opened forward

[Overview of Tunnel Emergency Equipment]
FIG. 1 is an explanatory diagram showing a tunnel emergency equipment including a fire hydrant installed in a tunnel of a motorway. As shown in FIG. 1, the inside of a tunnel 10 constructed by the shield construction method is covered with a cylindrical tunnel wall surface 12 and partitioned by a floor slab 18 to provide a road 15. In this example, The road 15 has two lanes in one direction.

A guard passage 14 is provided along a tunnel wall surface 12 on the left side of a road 15 partitioned by a floor slab 18, and an inner space under the guard passage 14 is used as a duct 22, and electric conduits and the like are laid. . The guard passage 14 is, for example, 90 centimeters high and 70 centimeters wide.

The lower side of the floor slab 18 on which the road 15 is formed is partitioned into a plurality of sections in the lateral direction of the tunnel. The management passageway 20 is used as an emergency evacuation passageway in the event of a fire in the tunnel. A water supply main pipe 24 is laid in the management passage 20 .

A fire hydrant system 16 is installed every 50 meters in the longitudinal direction of the tunnel 10, and the fire hydrant system of the fire hydrant system 16 is separated into a fire hydrant storage box 30 containing a hose and a water discharge control mechanism storage part 26. .

The fire hydrant storage box 30 is arranged in a fire hydrant embedding portion which is hollowed out in a box shape over the road surface of the guard passage 14 and the wall surface on the road 15 side. The water discharge control mechanism storage unit 26 is arranged in the management passage 20 below the fire hydrant storage box 30, and a branch main pipe 24a branched from the water supply main pipe 24 is drawn in, and the fire hydrant storage box 30 is supplied with fire extinguishing water. A water supply pipe 25 for supplying is raised.

[Fire hydrant equipment]
Fig. 2 is an explanatory diagram showing the appearance of the fire hydrant storage box in normal conditions, Fig. 3 is an explanatory diagram showing the appearance of the fire hydrant storage box in Fig. 2 from the front and the top, and Fig. 4 is the appearance of the fire hydrant storage box in Fig. 2. It is an explanatory view shown from the side.

(Appearance structure of fire hydrant storage box)
As shown in FIGS. 2 to 4, the fire hydrant storage box 30 of the fire hydrant equipment 16 is embedded in the interior space under the road surface of the guard passage 14 . The fire hydrant storage box 30 has the inspection door 100 fixed to the front surface of the housing 31 by bolts 106, and the front door 32 is vertically slidable in the front door opening 33 formed on the upper side of the center of the front surface of the inspection door 100. are placed in

A first upper door 34 having the same width as the front door 32 is arranged in a first upper door opening 35 formed in the center of the upper surface of the fire hydrant storage box 30 on the road surface side of the lifeguard passage 14. - 特許庁Further, a second top door opening 37 is formed in the center of the front side of the first top door 34, and the second top door 36 is arranged here.

Both sides of the front edge of the first upper door 34 are pivotally supported by arc-shaped hinges 46 arranged at the front edge corners of the upper part of the housing 31, as shown in the first upper door 34a in FIG. , the hinge 46 can be rotated to open the rear opening upward.

The rear edge of the second upper door 36 is pivotally supported by the second upper door opening 37 of the first upper door 34 by means of a hinge 42. As shown in the second upper door 36a of FIG. A front opening that opens upward is made possible.

A front opening handle 38 is pivotally supported by a hinge 44 on the front edge of the second upper door 36, and a front opening mechanism provided on the handle body of the front opening handle 38 causes the second upper door 36 to be closed. The front door 32 is locked in the illustrated closed state, and when the user operates from the road 15 side, the front door 32 is locked to the second upper door 36 by opening the front opening handle 38 . When released, the front door 32 drops to the back side of the housing 31 by its own weight to open the front door opening 33, and the second upper door 36 is opened forward to open the second upper surface door of the fire hydrant storage box 30. 37 is opened.

Here, the hinge 46 that rotatably supports the first upper door 34 on the front edge corner of the housing 31, and the hinge 44 that supports the front opening handle 38 on the front edge of the second upper door 36 are Both are arranged so that their axes are coaxial, and the front opening handle 38 that locks the housing 31 and the front door 32 in the closed position is used as a fixed side, and the hinges 44 and 46 open the second upper door. Together with 36, the first upper door 34 is pivotally supported so that it can be opened rearward.

A notification device panel 48 is provided on the front left upper portion of the fire hydrant storage box 30 . The reporting device panel 48 is provided with a red indicator light 50 , a transmitter 52 , an answering lamp 54 and a telephone jack 55 . The red indicator light 50 is always lit so that the installation location of the fire hydrant equipment can be seen from a distance. In the event of a fire, when the transmitter 52 is pushed to turn on the push button switch, the transmission signal is transmitted to the disaster prevention receiver installed in the monitoring center of the monitoring room or the like, and the fire alarm is issued. , the response lamp 54 is illuminated and the red indicator lamp 50 is flashed.

[Front opening mechanism]
5A and 5B are explanatory diagrams showing the front-opening handle portion of the fire hydrant storage box provided with the front-opening mechanism, FIG. 5A showing the front, and FIG. shows a side view of XX. 6A and 6B are explanatory diagrams showing the mechanical structure of a front opening mechanism that opens the second upper door in front and slides it open when the front door drops. FIG. 6(A) shows the closed state, and FIG. 6(B). indicates a state in which the front opening handle is operated to open.

As shown in FIG. 5, on both sides of the handle body 38a of the front-opening handle 38 pivotally supported by a hinge 44 at the tip of the second upper door 36 arranged on the upper surface of the fire hydrant storage box 30, the shafts of the front-opening mechanism are provided. The member 56 is taken out, and the tip of the shaft member 56 is inserted into the shaft hole of the bearing member 58 arranged on the back side of the front door 32 when the second upper door 36 is closed. The front door 32 is engaged with 36 and held in the closed position.

When the front opening handle 38 is lifted up, the shaft member 56 is pulled inward and comes out of the shaft hole of the bearing member 58, thereby releasing the locking of the front door 32 and allowing the front door 32 to fall while sliding under its own weight. to open the front door opening 33.

As shown in FIG. 6(A), the front opening mechanism 60 has a pair of bent links 62 connected at one end by a movement fulcrum 64 in the handle body 38a, and the bent position of the link 62 serves as a rotation fulcrum 66 to move the handle. The other end of the link 62 is connected as a slide fulcrum 70 to a fulcrum 68 at the shaft end of the shaft member 56, and the moving fulcrum 64 is urged upward by a spring 72 as shown in the drawing. ing.

When the front opening handle 38 is not operated, the link 62 rotates outward under the force of the spring 72 to fit the shaft member 56 into the shaft hole 58a of the bearing member 58 and open the second upper door 36. , the front door 32 is locked.

When the front-opening handle 38 is lifted up, as shown in FIG. 6B, the moving fulcrum 64 moves downward against the spring 72 via a link mechanism (not shown), thereby rotating the link 62 inward. By moving and pulling the shaft member 56 inward, the tip of the shaft member 56 is pulled out from the shaft hole 58a of the bearing member 58, the locking of the front door 32 is released, and the front door 32 falls while sliding under its own weight. to open the front door opening 33.

The front-opening mechanism 60 is not limited to the link mechanism of FIG. 6, and includes an appropriate link mechanism that pulls the shaft member 56 inward by lifting the front-opening handle 32 and pulls it out from the shaft hole 58a of the bearing member 58. .

[Operation to open the second upper door and the front door from the road side]
FIG. 7 is an explanatory diagram showing the opening operation of the front door and the second upper door when operated from the road side.

As shown in FIG. 7, when the user operates the fire hydrant storage box 30 from the road side, when the front opening handle 38 is lifted up, the locking of the front door 32 is released and the front door 32 slides by its own weight. It falls and the front door opening 33 is opened.

Subsequently, when the user performs a forward opening operation to open the second upper door 36 in the depth direction, the shaft members 56 arranged on both sides of the handle body 38a are opened as shown in FIGS. is extracted from the bearing member 58 on the back surface of the front door 32, the second upper door 36 is opened forward about the hinge 42, the second upper surface door opening 37 is opened, and is arranged on the back surface of the second upper door 36. Take out the nozzle from the nozzle holder and pull out the hose, and operate the fire hydrant valve open/close lever (not shown) located on the back side of the second upper door 36 or the like to fire water from the nozzle to extinguish the fire.

In addition, the fire hydrant valve opening/closing lever arranged on the back surface of the second upper door 36 or the like is designed to open and close the manual pilot valve, and when the fire hydrant valve opening/closing lever is opened, the manual pilot valve is opened. A fire hydrant valve separately located in the water control mechanism housing 26 shown can be remotely opened to cause water to be discharged from the nozzle.

On the other hand, when the fire extinguishing work is completed, after draining the water from the hose pulled out by the staff, the hose is rewound into the housing 31 from the front door opening 33 and the second top door opening 37 and horizontally inside. Finally, with the second upper door 36 closed, the open front door 32 is pulled up and locked to the handle body 38a of the front opening operation handle 38 of the second upper door 36, and the front door 32 is held closed.

[Operation to open and close the first upper door from the guard passage]
FIG. 8 is an explanatory view showing the opening operation of the first upper door when operated from the observer's passage side.

As shown in FIG. 8, when the user operates the fire hydrant storage box 30 from the lifeguard passage, the user bends down from the lifeguard passage and lifts up the rear-opening handle 40 to open the first upper door. The rear edge side of 34 is unlocked from the housing 31 side, and the first upper door 34 is opened rearward about the hinge 46 at the front edge corner portion to open the first upper door opening 35 .

At this time, the second upper door 36 is also integrally opened with the first upper door 34 and rearwardly opened around the hinge 44, and the front-opening handle 38 pivotally supported by the hinge 44 does not move and is provided on the front-opening handle 38. The tip of the shaft member 56 of the front opening mechanism 60 shown in FIG. The second upper door 36 is rear-opened integrally with the first upper door 34 while maintaining the locking of the second upper door 36 .

When the first upper door opening 35 is opened by opening the first upper door 34 backward, the user takes out the nozzle held by the nozzle holder arranged on the back side of the second upper door 36 and pulls out the hose. , by operating a fire hydrant valve opening/closing lever (not shown) arranged on the back surface of the second upper door 36 or the like, fire extinguishing work is performed by discharging water from the nozzle.

On the other hand, when the fire extinguishing work is completed, after draining the water from the hose pulled out by the staff, the hose is unwound from the first upper surface door opening 35 into the housing 31 and wound horizontally inward, and finally Then, the first upper door 34 is closed.

[Internal structure of fire hydrant storage box]
9A and 9B are explanatory diagrams showing the internal structure of the fire hydrant storage box, FIG. 9A showing the front, and FIG. 9B showing the side seen from the YY section of FIG. 9A.

As shown in FIG. 9, the inner lower side of the housing 31 of the fire hydrant storage box 30 is a hose storage portion 74, in which a hose 76 having a shape-retaining structure is horizontally stacked and wound inward.

The rectangle seen from the plane of the housing 31 has a width of about 1.4 meters and a depth of about 0.35 meters. The shape is a rectangle with rounded corners consisting of two parallel lines and two semicircles, and the length of one turn of the hose 76 wound inside the flat rectangular housing 31 is approximately 3.5 meters. Since the length is required to be 30 meters or more, the hose 76 should be wound inward by overlapping 9 turns or more.

Here, the hose 76 wound inside the housing 31 in a rectangular shape with rounded corners is indicated by parallel line hose portions 76a and 76c and semicircular hose portions 76b and 76d.

A hose guide structure 80 is provided on the central front side of the housing 31 for deforming inward the parallel line portion 76a on the front side of the hose 76 that is wound inwardly in the housing 31 in a rectangular shape with rounded corners.

The hose guide structure 80 has two guide pipes 80a and 80b using metal pipes erected on a bottom plate 81. By winding the hose 76 inward along the guide pipes 80a and 80b of the hose guide structure 80, the hose The parallel line hose portion 76a on the front side of the hose 76 is deformed inward into a shape similar to a gourd, and due to this deformation, a repulsive force is generated in the deformed parallel line hose portion 76a of the hose 76 to spread outward. are doing.

By providing such a hose guide structure 80, the hose 76 that is overlapped and wound inside the housing 31 is deformed inward by the hose guide structure 80 at the parallel line hose portion 76a of the round oval shape. As a result, a repulsive force that tends to spread outward is generated, and a force that presses against the inner wall side of the housing 31 is generated. To surely prevent collapse inside.

Here, the hose guide structure 80 deforms the parallel hose portion 76a on the front side of the hose 76 inward, and the parallel hose portion 76c on the back side is not deformed inward, but deforms inward of the parallel hose portion 76a. As a result, the force that tends to expand the hose 76 as a whole increases, and it is possible to reliably prevent the parallel hose portion 76c on the rear side, which is not deformed inward, from collapsing inward.

When the front door 32 and the second upper door 36 or the first upper door 34 are opened and the hose 76 is pulled out, the deformation of the semicircular hose portions 76b and 76d of the hose 76 causes the hose to be pushed out. In addition to the force, the parallel line hose portion 76a of the hose 76 is also deformed inward by the hose guide structure 80 to generate a force to push out the hose 76, so that the pull-out force of the hose 76 can be reduced.

A guide pipe 82 is arranged on the upper part of the hose guide structure 80 so as to surround the inner side of the front door opening 33, the first upper surface door opening 35 and the second upper surface door opening 37 shown in FIG. By bringing the hose 76 into sliding contact with the guide pipe 82 when pulling it out, the hose 76 is prevented from wearing out and the hose pulling force is reduced.

A foam nozzle 78 connected to the tip of a hose 76 by a nozzle holder 86 is detachably locked to the rear surface of the second upper door 36 . The nozzle holder 86 of this embodiment has a suspension structure in which the foam nozzle 78 is pivotally supported on the back surface of the second upper door 36 and suspended in a suspended state. When the front is opened as shown by the upper door 36a, or when the first upper door 34 is integrally opened with the second upper door 36 and the rear is opened as shown by the first upper door 34a in FIG. A nozzle holder 86 holds the foam nozzle 78 in a suspended state on the rear surface of the door 36 .

Therefore, when the second upper door 36 is opened forward or the first upper door 34 is opened rearward together with the second upper door 36, the foam nozzle 78 suspended on the rear surface of the door appears above the fire hydrant storage box 30. become.

When the second upper door 36 is opened forward, the foam nozzle 78 held on the rear surface of the door appears at a position within a range of approximately 0.9 to 1.3 meters from the road 15, which stands on the road 15. It corresponds to the range from the waist to the shoulders of the user, and since the foam nozzle 78 appears in front of the user, the foam nozzle 78 can be easily taken out.

Further, the position where the foam nozzle 78 held on the rear surface of the door appears when the first upper door 34 is opened rearward is approximately within a range of 0.2 to 0.4 meters from the road surface of the observer passage 14. The foam nozzle 78 appears in front of the user who is bending over the guard passage 14 and operating the rear opening handle 40, and the user can easily take out the foam nozzle 78 from the guard passage 14 side. .

[Inspection door]
FIG. 10 is an explanatory diagram showing a state in which the inspection door is opened forward, and FIG. 11 is a side view showing a state in which the inspection door is opened forward.

As shown in FIGS. 10 and 11, the inspection door 100 fixed by bolts to the front surface of the housing 31 of the fire hydrant storage box 30 is released from the fixed state by removing the bolts. The hinge 102 is used as a rotation axis so that the upper side can be opened forward at a predetermined inclination angle θ.

In order to fix the inspection door 100 to the front surface of the housing 31 with bolts, through holes 108 are formed in both upper sides of the inspection door 100, and screw holes 110 are formed in the frame of the housing 31 facing the through holes 108. ing.

Both sides of the inspection door 100 and both side frames of the housing 31 are connected by a chain 104 that functions as a flexible string member. of the inspection door 100 when the upper side is opened forward is set.

In this embodiment, the length of the chain 104 is determined so that the front-opening inspection door 100 has an inclination angle θ of 30°, for example. Here, when the inclination angle θ is 30°, and the height of the inspection door 100 is 80 to 90 cm, the distance between the upper end of the front-opening inspection door 100 and the housing 31 is approximately several tens of centimeters. Even if the front door opening 33 of the inspection door 100 is closed by the front door 32, there is a sufficient distance of several tens of centimeters between the upper end of the front opened inspection door 100 and the housing 31. A wide opening is formed in the

However, when the inspection door 100 is opened forward, the lock by the front opening handle 38 provided on the second upper door 36 of the front door 32 is released, and as shown in FIG. The front door 32 provided is in an open state, so that a sufficiently wide opening is formed between the front-opened inspection door 100 and the housing 31 .

The opening of the inspection door 100 shown in FIGS. 10 and 11 is performed prior to the work of rewinding the drained hose horizontally into the housing 31 after the fire extinguishing work is completed. In this way, with the inspection door 100 opened forward and held at the predetermined inclination angle θ by the chain 104, the attendant puts the drained hose 76 into the hose storage section 74 in the housing 31 as shown in FIG. Then, the tape is rewound horizontally.

At this time, the person in charge can stand in front of the front-opened inspection door 100 and insert his or her hand into the housing 31 from above the inclined front-opened inspection door 100 to wind the hose inward. As shown in , when the hose is pulled out to the road side from the front door opening 33 and the second top door opening 37, or as shown in FIG. In either case, the hose can be easily rewound into the housing 31 .

Also, when inspecting the hose with a nozzle stored in the fire hydrant storage box 30, the fixed inspection door 100 is released and the inspection door 100 is tilted and opened forward as shown in FIGS. By doing so, it is possible to easily perform inspection work for visually confirming the state of the hose through the opening between the front-opened inspection door 100 and the housing 31 .

Furthermore, the front door 32 is provided on the back side of the inspection door 100 so as to be slidable and openable in the vertical direction. can be easily inspected.

[Modification of the present invention]
(Foam hydrant equipment)
In the above embodiment, a foam fire hydrant system that discharges fire-extinguishing foam is taken as an example, but the present invention is not limited to this, and a fire hydrant system that discharges fire-extinguishing water may be used.

(Installation of fire hydrant storage box)
In the above embodiment, the hose guide structures 80a and 80b are of a fixed structure, but a hinge may be provided at the contact portion with the bottom plate so that they can rotate forward about their axes. At the time of inspection, the hose guide structures 80a and 80b are rotated forward about their axes and brought into contact with the inspection door, so that the hindrance from the space opened by tilting the inspection door to the hose storage section is eliminated.

As a result, it is possible to adopt a method in which the bundle of hoses assembled in advance is slid over the inspection door and the hose guide structures 80a and 80b and stored in the hose storage section. Moreover, since it is not necessary to pass the hose over the hose guide 82 when rewinding the hose, the rewinding work can be easily performed. At this time, it is preferable that the inclination angle θ is such that the hose bundle can be accommodated. For this reason, the length of the chain is set so that the angle of inclination .theta.

Moreover, although the above-described embodiment exemplifies a fire hydrant device for a tunnel fire hydrant system, it may be used for a fire hydrant embedded in a general road. Alternatively, the fire hydrant storage box may be exposed without being embedded. When used in an exposed-type fire hydrant storage box, it is preferable that the upper door is positioned at a height of about 1 meter in order to facilitate opening and closing operations of the upper door and facilitate removal of the nozzle. In addition, for example, the fire hydrant storage box of the present application can be used on two aisle surfaces with different heights, on surfaces with different heights where people can walk, such as on and below the stage of a gymnasium or stage, and on a wall surface that is in contact with those surfaces. may apply.

(others)
Further, the inspection door may not be inclined to the front, but may be rotated about the front left end or right end of the housing to open in the lateral direction. As a result, the hose can be stored without restriction from the front. This method requires more space in front of the fire hydrant than the method of tilting the front door.

Also, the inspection door and the front door may be divided at the center so that they can be opened from both shafts. The force concentrated near the lowest point of the axis can be reduced, and the possibility of distortion can be reduced, as compared with the case of rotating only the left end or the right end as the axis.

Moreover, 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 26: Water discharge control mechanism storage Part 30: Fire hydrant storage box 31: Case 32: Front door 33: Front door opening 34: First upper door 35: First upper surface door opening 36: Second upper door 37: Second upper surface door opening 38: Front opening handle 40: Front-opening handles 42, 44, 46: Hinge 48: Communication device panel 56: Shaft member 58: Bearing member 58a: Shaft hole 60: Front-opening mechanism 74: Hose housing 76: Hose 78: Foam nozzle 80: Hose guide Structures 80a, 80b, 82: Guide pipe 86: Nozzle holder 100: Inspection door 102: Hinge 104: Chain 106: Bolt 108: Through hole 110: Screw hole

Claims (5)

In a fire hydrant device that is embedded in the guard passage along the tunnel wall and has a hose with a nozzle stored in the housing,
It is fixed so as to close an opening provided on a predetermined surface of the housing that can be opened by an inspector while embedded in the observer passage, and is detached from the housing when the fixation is released. an inspection door that can be opened without opening and that can maintain the opening in an open state when opened;
a door arranged to open and close a door opening provided in the inspection door and opened when the hose is pulled out to the outside;
with
A fire hydrant device, wherein the door opens the door opening provided on the inspection door when the inspection door is unlocked and the opening provided on the predetermined surface of the housing is opened. .
In the fire hydrant device according to claim 1,
The fire hydrant device, wherein the inspection door in a closed state maintains the closed state when the door is opened.
In the fire hydrant device according to claim 1 or 2,
The inspection door is fixed so as to close a front opening provided on the front surface of the housing on the road side in a state embedded in the observer passage, and can be opened when the fixing is released. can be,
The fire hydrant device is characterized in that the door is arranged so as to be able to open and close a front door opening provided on the front surface of the inspection door on the road side, and is a front door that is opened when the hose is pulled out to the outside. .
In the fire hydrant device according to any one of claims 1 to 3,
The inspection door is fixed by a fixing member so as to close the front opening, and does not have an operation part for releasing the fixing by the fixing member, so that it cannot be opened when the user pulls out the hose to the outside. A fire hydrant device characterized by being.
A fire hydrant facility having an embedded part that is an internal space under the road surface of a guard passage along the tunnel wall in the tunnel,
The fire hydrant device according to any one of claims 1 to 4 is embedded in the embedded portion so that the upper surface is exposed to the road surface side of the lifeguard passage and the front surface is exposed to the road side. fire hydrant equipment.

Images