JP2018175438A - Fire hydrant housing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily handle a fire hydrant housing from a road side and from a watchman passage side.SOLUTION: A fire hydrant housing is embedded and installed in a watchman passage along a tunnel wall surface, and a hose 52 with a foam nozzle 50 is stored in the housing. A housing 28 has a front door 32, a first upper door 36 and a second upper door 38. The second upper door 38 is arranged on a door opening 35 of the first upper door 36, and is divided into a door body 40 and a front edge frame door 42 and connected by a hinge 48. When the fire hydrant housing is operated from a road side, by front opening of the second upper door 38, engagement of the front door 32 is released, and is opened by slide fall for taking out the hose 52 with a foam nozzle 50. When the fire hydrant housing is operated from a watchman passage side, the first upper door 36 is opened by rear opening with the door body 40 in the second upper door 38, for taking out the hose 52 with the foam nozzle 50.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a fire hydrant storage box for pulling out a hose with a nozzle and releasing fire extinguishing water or foam.

  Conventionally, a fire hydrant device is provided as a tunnel emergency facility installed in a tunnel such as an expressway or automobile road, and the fire hydrant device has an openable fire hydrant door, and a hose and a fire hydrant valve fitted with a nozzle at the tip It contains valves including.

  Fire hydrant devices are generally embedded in the tunnel wall at intervals of, for example, 50 meters along the tunnel side wall. When a vehicle accident involving a fire occurs, in a tunnel with a supervisor passage, a road user such as a driver of the accident vehicle climbs the supervisor passage by steps installed on the side of the supervisor passage, and the tunnel The fire hydrant door of the fire hydrant device installed on the wall is opened forward, the hose with the nozzle is taken out, and the fire extinguishing work is performed.

  The supervisor's passage is provided as a raised side wall passage to the road surface, and it is possible to inspect various devices including the fire hydrant installed in the tunnel safely without obstructing the passage of vehicles in the tunnel. .

  In addition, in a tunnel without a guard passage, users such as the driver of the accident vehicle approach the fire hydrant installed on the tunnel wall, and similarly, the fire hydrant door is opened forward and the hose with a nozzle is installed. To take out firefighting work.

JP, 2006-181057, A Japanese Patent Application Publication No. 2008-055024 JP, 2009-285126, A

  By the way, in the case of an urban tunnel made by the shield method or the like, the fire hydrant device can not be embedded and installed in the tunnel wall surface, and the fire hydrant device needs to be embedded and installed in the side (wall surface) of the surveillance officer passage.

  However, when the fire hydrant device which opens a door forward like a conventional fire hydrant is installed in the surveillance officer passage, when the fire hydrant door is opened, there is a problem of jumping out on the road side beyond the construction limit.

  On the other hand, even if this problem can be solved, if the fire hydrant device is embedded along the guard aisle wall surface facing the road in the tunnel, a vehicle fire occurs and the vehicle stops in front of the fire hydrant door. The stopping vehicle may get in the way and you may not be able to open the hydrant door and pull out the hose. Furthermore, even if it is possible to operate from the guard channel, if it is necessary to bend the body and reach out in order to open the fire hydrant door from the guard channel, it may take time to operate the fire hydrant device.

  An object of the present invention is to provide a fire hydrant storage box which enables easy and easy handling of the fire hydrant from the road side and the guard aisle side.

(Fire hydrant storage box)
The present invention relates to a fire hydrant storage box in which a hose with a nozzle is internally wound and stored in a housing embedded in a guard passage along a tunnel wall surface,
In the front door opening formed on the front of the chassis on the road side, there is a front door arranged to slide open and close in the vertical direction,
A first upper door pivotally supported so as to be able to be opened backward with the front edge upper frame side of the housing as an axis at the upper surface door opening formed on the upper surface of the housing which is to be the surveillance staff passage
The door main body and the front edge frame door are divided and disposed at the door opening formed by opening the front edge side of the first upper door, and the door main body is pivotally supported by the front edge frame door so as to be able to open backward. A second upper door pivotally supported on the first door so as to be openable forward relative to the first door with the door main body as an axis at the rear edge side of the door;
In the non-operational position of the front opening handle provided on the front door, the front edge frame door of the second upper door is locked to hold the front door in the closed position, and the opening operation of the front opening handle causes the second upper door to While releasing the lock with the front edge frame door and sliding the front door open, the front edge frame door of the second upper door and the door body are integrated to the first upper door in the closed state, and the second upper door is integrated. The door opening and closing mechanism to open the front,
Is provided.

(Door opening and closing mechanism)
The door opening and closing mechanism is
A receiving member disposed upright on the lower surface of the front edge frame door in the second upper door;
Located behind the front opening handle and engaged with the receiving member in the non-operating position of the front opening handle, the front door is locked to the front edge frame door and held in a closed state, and is turned by the opening operation of the front opening handle A hook member which causes the front door to slide open and the front edge frame door and the door main body to integrally open the second upper door by releasing the engagement with the receiving member;
Is provided.

(U-shaped receiving member)
The receiving member is a U-shaped member erected on the lower surface of the front edge frame door.

(The first upper door opening and closing handle structure)
The first upper door is provided with a handle member used to open the door so as to be able to retract and retract.

(Assist mechanism)
Between the second upper door and the housing, a door opening biasing mechanism is provided that assists the opening force for front opening the second upper door.

(Door lock mechanism)
Between the first upper door and the housing or between the second upper door and the housing, a lock mechanism is provided which is held in the door open position.

(Nozzle locking mechanism)
A nozzle locking mechanism is provided for detachably locking the nozzle on the back surface of the door main body in the second upper door.

(Placement of manual pilot valve)
Remote control of the separately disposed fire hydrant valve inside the top opening of the casing that is opened when the second upper door is opened forward and when the first upper door is opened backward integrally with the second upper door A manual pilot valve provided with a control lever for supplying extinguishing water to a hose with a nozzle is arranged to be exposed.

(Basic effect)
According to the present invention, in a fire hydrant storage box in which a hose with a nozzle is internally wound and stored in a housing embedded in a guard passage along a tunnel wall surface, the housing on the road side In the front door opening formed on the front, in the upper door opening formed on the upper surface of the case, which is on the upper side of the case, which can be slid open / close in the vertical direction The door main body and the front edge frame door are divided and arranged at the door opening formed by opening the front edge side of the first upper door pivotally supported on the side as an axis in a rear opening manner, The door body is pivotally supported on the front edge frame door so as to be able to open backward, and the door body is provided on a second upper door pivotally supported on the first door so as to be openable frontward relative to the first door In the non-operational position of the front opening handle, the front door is locked to the front edge frame door in the second upper door to hold the front door in the closing position, and the front opening handle is opened. Release the lock with the front edge frame door in the second upper door and slide the front door open, and the front edge frame door and door main body of the second upper door with respect to the first upper door in the closed state As a door opening and closing mechanism is provided to open the second upper door forward as one, when the user operates the front opening handle from the road side when a fire occurs due to a vehicle accident in the tunnel, the front door facing the road Slide is dropped and opened, the second upper door is opened forward in the depth direction, the front door opening of the fire hydrant storage box and the upper door opening of the second upper door opened subsequently are opened, and from the hose storage part The hose with the nozzle can be easily pulled out to extinguish the fire.

  In addition, when the vehicle stops in front of the fire hydrant storage box and the user can not operate from the road side, the user climbs the surveillance officer passage and opens the first upper door to the road side with the second upper door. By performing the rear opening operation, the upper surface of the housing is opened, and the hose with the nozzle can be easily and easily pulled out from the hose storage portion and extinguished without being blocked by the stop vehicle.

  Also, when the first upper door and the second upper door are opened backward on the road side, the user falls on the road side when pulling out a hose with a nozzle from the top opening of the casing, since it functions as a fence. The danger is avoided, and it is possible to prevent the nozzle taken out from the inside from falling to the road side.

(Effect of door opening and closing mechanism)
The door opening and closing mechanism is a receiving member disposed upright on the lower surface of the front edge frame door of the second upper door and a rear side of the front opening handle, and engaged with the receiving member at the non-operating position of the front opening handle. The front door is locked open to the front edge frame door and held in a closed state, and the front door is slid open by pivoting by the opening operation of the front opening handle to release the engagement with the receiving member Since the front edge frame door and the hook member for integrally opening the second upper door with the door body integrally are provided, the hook member is rotated by the opening operation of the front opening handle, and the receiving member of the second upper door is pulled By a simple structure in which the locking is released by dismounting, the second front door can be opened forward and the front door can be opened by sliding.

(Effect of U-shaped receiving member)
In addition, since the receiving member is a U-shaped member erected on the lower surface of the front edge frame door, the front edge frame door in the second upper door receives the hanging load corresponding to the weight of the front door by the locking of the hook member. Because of the U shape, it is possible to secure sufficient suspension strength to support the weight of the front door.

(Effect of the handle for opening and closing the first upper door)
In addition, since the handle member used for door opening is provided in the first upper door in a retractable manner, the handle member immerses in the upper surface of the door in the closed state of the first upper door and obstructs the passage of a person in the guard passage. When operating from the surveillance staff aisle side, the user can easily pull back the first upper door by pulling out the handle member.

(Effect of assist mechanism)
In addition, since a door opening biasing mechanism is provided between the second upper door and the housing to assist the opening force for front opening the second upper door, locking of the second upper door by the opening operation of the front opening handle is provided. By the release, the second upper door can be opened forward automatically by the assistance of the door opening biasing mechanism or with a light force.

(Effect of door lock mechanism)
In addition, since a lock mechanism for holding the door in the door open position is provided between the first upper door and the housing or between the second upper door and the housing, the open position by the front opening of the second upper door or the first The movement of the door is locked in the open position by opening the back of the upper door, and the hose with the nozzle can be safely pulled out to extinguish the fire.

(Effect of nozzle locking mechanism)
In addition, since the nozzle locking mechanism for detachably locking the nozzle to the back of the door main body in the second upper door is provided, the operation from the front opening of the second upper door or the supervisor channel when operated from the road side In any case of the first upper door after opening integrated with the second upper door, the nozzle is positioned by the nozzle holder on the back of the open second upper door, from the door opening It is possible to easily take out the nozzle that has appeared in front of the eyes without putting a hand in the housing, and the quickness and certainty of fire extinguishing activity in case of fire are improved.

(Effect by placement of manual pilot valve)
In addition, the remote control of the fire hydrant valve separately disposed inside the top opening of the housing that is opened when the second upper door is opened forward and when the first upper door is opened backward integrally with the second upper door And the manual pilot valve with the control lever that supplies the fire extinguishing water to the hose with a nozzle is exposed so that it operates from the front opening of the second upper door when operated from the road side or the guard aisle side In any of the first upper door rear opening integrated with the second upper door, the manual pilot valve provided with the operating lever is exposed in the upper surface of the open housing, and the manual pilot valve by the operating lever is Open the fire hydrant valve remotely by opening it and release fire extinguishing water from the nozzle of the drawn hose tip, and close the fire hydrant valve remotely by closing the manual pilot valve with the operation lever to stop the discharge of the fire extinguishing water. At That.

Explanatory drawing showing the tunnel emergency equipment including the fire hydrant installed in the tunnel of the motorway Explanatory drawing which showed the external appearance of the fire hydrant storage box at the normal time from the front, the plane, and the side Explanatory drawing which showed the external appearance of the fire hydrant storage box in the door open state operated from the road side from the front, the plane, and the side The perspective view which took out and showed the door opening part in the fire hydrant storage box of FIG. 3 The perspective view which showed the door opening and closing mechanism arrange | positioned on the back side of the front opening handle Rear view showing the door closed state by the door opening and closing mechanism Explanatory drawing which showed in cross-section the door opening-and-closing mechanism which opens the 2nd upper door in front and makes slide open by falling of the front door Explanatory drawing which showed the connection part by the hinge of the door main body and front edge frame door in a 2nd upper door in the cross section Explanatory drawing which showed the external appearance of the fire hydrant storage box in the door open state operated from the surveillance officer passage side from the front, the plane, and the side The perspective view which showed the fire hydrant storage box of FIG. 9 seeing from the back side Explanatory drawing which showed the structure which opens a 1st upper door back integrally with a 2nd upper door by the cross section Explanatory drawing which showed the internal structure of the fire hydrant storage box from the front and the plane Explanatory drawing which showed the water discharge control mechanism in the cross section seen from the road surface side with the fire hydrant storage box by the side of a supervisor

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

  The guard 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 inner space under the guard passage 14 is used as the duct 22 and a conduit etc. is laid . The guard passage 14 has, for example, a size of 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 tunnel lateral direction, for example, the sections located under the guard passage 14 are used as a management passage 20, and The management passage 20 is used as an emergency evacuation passage when a fire occurs in a tunnel. A water supply main 24 is laid in the management passage 20.

  The fire hydrant equipment 16 is installed every 50 meters in the longitudinal direction of the tunnel 10, and the fire hydrant equipment 16 is separately installed in the fire hydrant storage box 30 in which the hose is stored and the drainage control mechanism storage unit 100.

  The fire hydrant storage box 30 is disposed in a fire hydrant embedding portion which is pierced in a box shape along the road surface of the surveillance staff passage 14 and the wall surface on the road 15 side. The water discharge control mechanism storage unit 100 is disposed in the management passage 20 on the lower side of the fire hydrant storage box 30, the branch pipe 24a branched from the water supply main 24 is drawn in, and the fire hydrant storage box 30 is supplied with extinguishing water. The water supply piping 25 is set up.

[Exterior structure of fire hydrant storage box]
FIG. 2: is explanatory drawing which showed the external appearance of the fire hydrant storage box from the front, the plane, and the side. As shown in FIG. 2, the fire hydrant storage box 30 of the fire hydrant installation 16 is embedded in the interior space below the road surface of the surveillance staff passage 14. As shown in FIG. 2A, in the fire hydrant storage box 30, the front door 32 is slidably disposed in the vertical direction at the front door opening 31 formed on the upper front center of the housing.

  Further, as shown in FIG. 2B, a first upper door 36 and a second upper door 38 are provided at the top surface opening of the housing 28 on the road surface side of the monitoring staff passage 14 of the fire hydrant storage box 30. As shown in the first upper door 36a of FIG. 2C, the first upper door 36 is disposed so as to be able to open rearward.

  The second upper door 38 is disposed at the door opening 35 opened to the front of the first upper door 36 so as to be able to open forward as shown in the second upper door 38 a of FIG. 2 (C). Furthermore, the second upper door 38 is divided into the door main body 40 and the front edge frame door 42, and the front edge frame door 42 has the same width as the front edge upper frame 37 fixed to the upper front portion of the housing 28. It has become.

  When the second upper door 38 configured by the door main body 40 and the front edge frame door 42 opens forward as shown in the second upper door 38 a of FIG. 2C, the door main body 40 and the front edge frame door 42 Are integrally opened and closed and the first upper door 36a is opened forward as shown in FIG. 2C, the front edge frame door 42 is fixed, and the door main body 40 is integrated with the first upper door 36. It is opened and closed.

  Here, with the front opening of the second upper door 38, as shown in the second upper door 38a of FIG. 2C, it opens and closes upward around the door rear edge portion on the depth side of the second upper door 38 as an axis It says to be done. Moreover, with the rear opening of the first upper door 36, as shown in the first upper door 36a of FIG. 2C, it is opened and closed upward around the door front edge portion of the upper door 36 as an axis. Say.

  The front door 32 is held in the illustrated closed state by engagement with the second upper door 38. When the fire hydrant storage box 30 is operated from the road 15 side, when the handle lever of the front opening handle 34 provided on the front door 32 is pulled to the front, engagement of the front door 32 with the second upper door 38 The stop is released, and the front door 32 slides down and is opened. At the same time, the second upper door 38 opens to the front.

  On the other hand, when the fire hydrant storage box 30 is operated from the surveillance officer passage 14 side, the handle 44 provided in two places of the first upper door 36 so as to be able to retract and retract is pulled back and lifted.

[Opening mechanism of front door and second upper door]
FIG. 3 is an explanatory view showing the appearance of the fire hydrant storage box in a door open state operated from the road side from the front, a plane and a side; FIG. 4 is a perspective view showing the door open part in the fire hydrant storage box of FIG. It is.

  As shown in FIGS. 3 and 4, when the front opening handle 34 provided on the front door 32 is opened, the locking of the front door 32 with respect to the second upper door 38 is released, and the front door 32 slides and falls. At the same time, the second upper door 38 is opened forward with the hinge 46 as an axial center by pushing up by the gas spring 56 which functions as a door opening biasing mechanism, and is locked in the open position by extension of the stopper arm 58. An open front hose outlet 45 is formed on the top surface.

  In the gas spring 56, a rod is telescopically provided on a cylindrical main body containing pressurized gas and oil, and the upper end of the rod is connected to a piston having an orifice hole housed in the main body. It has a structure in which a lifting force is applied to the rod via the.

  The foam nozzle 50 is detachably engaged with the back surface of the second upper door 38 by a nozzle holder 54 which functions as a nozzle engagement mechanism. The nozzle holder 54 has, for example, three-dimensional freedom, and holds the foam nozzle 50 connected to the tip of the hose 52 in a suspended state regardless of the open / close position of the second upper door 38.

  The manual pilot valve 62 provided in the pilot pipe 61 is disposed inside the right side housing opening of the second upper door 38, and the manual pilot valve 62 is exposed by the front opening of the second upper door 38, and the operation lever Opening and closing operations are possible. The manual pilot valve 62 remotely controls a fire hydrant valve provided in the water discharge control mechanism storage unit 100 of the management passage 20 shown in FIG. 1 to supply extinguishing water to the hose 52 with the foam nozzle 50.

  The second upper door 38 is front-opened in a state in which the door main body 40 and the front edge frame door 42 are integrated, and the detailed structure thereof will be clarified in the following description.

  Guide pipes 60 are disposed on the left, right, and lower sides of the front door opening 31 opened by the sliding fall of the front door 32. When the foam nozzle 50 is removed from the nozzle holder 54 and the hose 52 is pulled out By sliding contact, the pulling force of the hose 52 is reduced, and the wear of the hose 52 is prevented. After pulling out the hose 52 by holding the foam nozzle 50, turning the control lever of the manual pilot valve 62 to the open position remotely opens the fire hydrant valve and supplies the foam fire extinguishing water, so that the foam is discharged. Fire extinguishing foam can be discharged from the nozzle 50.

[Details of the door opening and closing mechanism]
FIG. 5 is a perspective view showing the door opening and closing mechanism disposed on the back side of the front opening handle, and FIG. 6 is a rear view showing the door closed state by the door opening and closing mechanism.

  As shown in FIGS. 5 and 6, on the back side of the front door 32, a door opening / closing mechanism that operates by the operation of the front opening handle 34 is provided. In this door opening and closing mechanism, bearing members 66 are disposed on the back of the front door 32 on both sides of the handle main body 34 a, and both sides of the shaft member 64 are rotatably supported by the bearing members 66. A hook arm 70, which is a pair of two at the position of the bearing member 66, is provided in a state of being erected upward.

  A link lever 65 taken out from the rear of the handle body 34a is fixed to the shaft member 64. When the link lever 65 performs an opening operation to pull the handle lever of the front opening handle 34 to the front, the link lever 65 operates so as to turn the shaft member 64 in the depth direction.

  The hook arm 70 has a hook claw 70a formed at its tip, and the hook claw 70a is U-shaped upstandingly fixed to the back surface of the front edge frame door 42 of the second upper door 38 as shown in FIG. The receiving member 72 is locked so that the front door 32 is locked to the second upper door 38 and kept closed.

  The handle lever of the front opening handle 34 receives a force for urging it to the non-operating position by the built-in spring member. Therefore, the hook arm 70 connected via the link lever 65 and the shaft member 64 is also a hook claw A force is applied to the receiving member 72 in a direction to lock it.

  In the closed state of the second upper door 38, the front door 32 is suspended in the closed position by the engagement of the hook arm 70 with the receiving member 72, and the receiving member 72 and the hook arm 70 correspond to the weight of the front door 32. Since the suspension load is received, the receiving member 72 is formed in a U-shape, and the hook arm 70 is formed in two pieces, so that sufficient suspension strength for supporting the weight of the front door 32 can be secured.

  A positioning rib 74 is disposed on the front side of the receiving member 72 provided on the back surface of the front edge frame door 42 so as to stand downward. The positioning rib 74 is positioned by entering the outside of the door frame 63 disposed at the upper front edge of the housing 28 when closing the second upper door 38 shown in FIG. 4, and the second upper door Positioning is performed by positioning the upper end of the front door 32 which is locked in the closed state 38 at the outside of the positioning rib 74.

  The hinge 48 rotatably connecting the door main body 40 to the front edge door frame 42 connects the front edge door frame 42 and the door main body 40 openably and closably through the opening 75 formed in the positioning rib 74. .

  FIG. 7 is an explanatory view showing, in cross section, a door opening / closing mechanism which causes the second upper door to be opened forward and the slide is released when the front door is dropped. As shown in FIG. 7, in the normal state, the handle lever of the front opening handle 34 is in the non-operating position, and in this state, the hook arm 70 provided on the shaft member 64 is in the upright state, and the hook claw 70a at the tip is The U-shaped receiving member 72 erected on the back surface of the second upper door 38 in the closed position, specifically the back surface of the front edge frame door 42 in the second upper door 38, is locked, and the front door 32 is closed. It is locked.

  Further, the rear edge side of the door main body 40 in the second upper door 38 is disposed in the door opening 35 (see FIG. 2) formed in the first upper door 36, so that the hinge 46 One end is fixed to the back surface of the first upper door 36, and the other end of the hinge 76 is fixed to the back surface of the door main body 40 via the shaft pin, and the second upper door 38 is fronted with respect to the first upper door 36 by the hinge 46. It is openable.

  In this state, when the user performs an opening operation to pull the handle lever of the front opening handle 34 from the road side toward the front, the hook arm 70 swings backward by the rotation of the shaft member 64 by the operation of the link lever 65 The claw 70a is removed from the receiving member 72, whereby the engagement with the receiving member 72 is released, and the front door 32 is slid down by its own weight and opened, and the second upper door 38 has the door body 40 and the front edge When the frame door 42 is integrated, as shown by a second upper door 38a shown by an imaginary line, the first upper door 36 is front-opened with the hinge 46 as an axial center.

  FIG. 8 is an explanatory view showing, in cross section, a connecting portion by a hinge of the door main body and the front edge frame door in the second upper door. As shown in FIG. 8, the door main body 40 and the front edge frame door 42 constituting the second upper door 38 are pivotally supported by the hinge 48 so as to be able to open and close each other, and the hinge 48 is hinged through the opening 75 of the positioning rib 74. One end 48 is fixed to the back surface of the front edge frame door 42, and the other side of the hinge 48 is fixed to the back surface of the door main body 40 via the shaft pin.

[Mechanism for opening the first upper door back]
FIG. 9 is an explanatory view showing the external appearance of the fire hydrant storage box in the door open state operated from the supervisor channel side from the front, a plane and a side; FIG. 10 is a perspective view showing the fire hydrant storage box of FIG. FIG. 11 is an explanatory view showing, in cross section, a structure in which the first upper door is opened rearward integrally with the second upper door.

  As shown in FIGS. 9 and 10, when the fire hydrant storage box 30 is operated from the guard passage, the user pulls the handle 44 from the first upper door 36 of the fire hydrant storage box 30 located on the road surface of the guard passage. By pulling out and lifting up, the first upper door 36 is made to open back around the hinge 76 provided on the front edge side, and the extension of the stopper arm 78 locks it in the open position.

  At this time, as shown in FIG. 10, in the second upper door 38, the hook arm 70 is locked to the receiving member 72 of the front edge frame door 42, and the front door 32 is locked in the closed state via the hook arm 70. When the first upper door 36 is opened backward with respect to the housing 28 by the hinge 76, the door main body 40 in the second upper door 38 connected by the first upper door 36 and the hinge 46 is released by the hinge 48. The door main body 40 in the second upper door 38 is opened rearward integrally with the first front door 36.

  Therefore, the hinge 76 provided between the first upper door 36 and the housing 28 and the hinge 48 provided between the door main body 40 and the front edge door frame 42 in the second upper door 38 have their respective centers of rotation. The axial pins that are arranged are arranged on the same axial center line in the lateral direction.

  When the first upper door 36 is rearwardly opened integrally with the door main body 40 of the second upper door 38, the upper surface of the housing 28 is opened. An upper surface door frame 84 is provided around the upper surface opening of the housing 28 so as to be bordered, and the first upper door 36 is closed on the upper surface door frame 84 in a closed state. Even if a person passes above the first upper door 36, the weight can be supported securely.

  Further, a guide pipe 80 is disposed inside the upper surface opening of the open housing 28, and an upper surface hose outlet port 82 for drawing out the hose 52 with the foam nozzle 50 is formed. The upper hose outlet 82 is opened laterally long on the depth side of the housing opening by the arrangement of the guide pipe 80, and is opened forward at the central portion of the housing opening.

  Under the guide pipe 80, a central portion 60a of the guide pipe 60 disposed in the front door opening 31 shown in FIG. 2 is extended in the depth direction, and the hose 52 attached to the foam nozzle 50 is a guide pipe It is taken out from the central portion 60a of 60 and pulled out via the top hose outlet 82 in the lateral direction on the road surface side of the guard passage.

[Internal structure of fire hydrant storage box]
FIG. 12 is an explanatory view showing the internal structure of the fire hydrant storage box from the front and a plane, FIG. 12 (A) shows the front, and FIG. 12 (B) is seen from the X-X cross section of FIG. 12 (A) Show a plane.

  As shown in FIG. 12A, the inside lower side of the fire hydrant storage box 30 is a hose storage portion 86, and a hose 52 of a shape-retaining structure is internally wound around the horizontal. 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 52 wound internally in the hose storage 86 is approximately 3 Since the length is about 5 meters and the hose length needs to be 30 meters or more, the hose 52 may be internally wound for 9 turns or more.

  The guide pipe 60 for dividing the front door opening 31 shown in FIG. 2 is disposed at the upper front of the fire hydrant storage box 30, and two guide pipes 92 are provided inside at the center on the front side of the hose storage 86 below. It is erected at the position where it entered.

  As shown in the plane of FIG. 12 (B), the hose 52 wound inward in the hose storage portion 86 is wound in a slightly bent state at the portion of the two guide pipes 92 disposed at the center. There is. For this reason, the parallel line hose portion 52a on the front side of the hose 52 is deformed inward to a substantially gourd shape, and the deformation causes the deformation of the parallel line hose portion 52a of the hose 52 to spread outward. As a force is generated and a force is generated to press the case inner wall side, it is possible to reliably prevent the parallel line portion 52a of the hose 52 wound inward in an overlapping manner from collapsing inward.

  In addition, when the door is opened and the hose 52 is pulled out, in addition to the force for pushing out the hose 52 due to the deformation of the radial portion 52b of the hose 52, the hose guide structure also for the parallel line portion 52a of the hose 52. A force is generated to push the hose 52 due to the deformation force caused by the pressure force, and the hose pull-out force can be reduced.

[Configuration of water discharge control mechanism]
FIG. 13 is an explanatory view showing the water discharge control mechanism in a cross section as viewed from the road surface side together with the fire hydrant storage box on the side of the monitoring personnel passage.

(Configuration of water discharge control mechanism)
As shown in FIG. 13, a water discharge control mechanism storage unit 100 is disposed in the management passage 20 below the internal space of the surveillance officer passage 14 in which the fire hydrant storage box 30 is disposed.

  The water discharge control mechanism storage unit 100 is provided with a pressure release type fire hydrant valve 102, an automatic pressure control valve 104, and a foam mixer 106 as valves constituting the water discharge control mechanism.

  The branch pipe 24a branched from the water supply main pipe 24 is connected to the primary side of the fire hydrant valve 102, and following the fire hydrant valve 102, the automatic pressure regulating valve 104 and the foam mixer 106 are connected. A pipe from a foam stock solution tank 108 is connected to the foam mixer 106, and foam fire extinguishing water is mixed at a predetermined ratio with the extinguishing water flowing in the foam mixer 106. The hose 52 is supplied.

  The fire hydrant valve 102 is a valve opening and closing mechanism for pressurizing and releasing, the piston 112 is slidably provided in the cylinder chamber 110, the valve body 115 is connected to the piston 112 by a piston rod, and the opposite side of the cylinder chamber 110 A spring 114 is incorporated in the housing.

  The hydrant valve 102 is normally closed. The fire hydrant valve 102 is closed by discharging the extinguishing water from the cylinder chamber 110 and reducing the pilot pressure to zero, pushing the piston 112 in the closing direction by the spring 114 and bringing the valve body 115 into contact with the valve seat 1 The flow paths on the secondary side and the secondary side are closed to make them closed.

  In order to open the fire hydrant valve 102, the extinguishing water is supplied to the cylinder chamber 110 to pressurize the pilot pressure so that the piston 112 is stroked outward against the spring 114 and the valve body 115 is separated from the valve seat. By connecting the primary side and the secondary side, the open state is established.

  In order to open the fire hydrant valve 102 by remote control, a manual pilot valve 62 which is opened and closed by an operation lever is provided. The pilot piping 116a drawn from the branch pipe 24a is connected to the primary side of the manual pilot valve 62, and the secondary side of the manual pilot valve 62 is connected to the cylinder chamber 110 of the fire hydrant valve 102 by the pilot piping 116b. .

  In the present embodiment, although the manual pilot valve 62 is directly opened and closed by the lever, the manual pilot valve 62 is disposed at another place in the fire hydrant storage box 30, and remotely opened and closed by the wire link or the like. You may

  Further, a notification device panel 130 is provided on the front upper left portion of the fire hydrant storage box 30. The notification device panel 130 is provided with a red indicator light 132, a transmitter 134, a response lamp 136 and a telephone jack 138. The red indicator light 132 is always on so that the installation location of the fire hydrant equipment can be seen from a distance.

  In case of fire, when the transmitter 134 is pressed and the push button switch is turned on, the transmission signal is sent to the fire receiver in the monitoring room and a fire alarm is issued, and the response signal is sent from the fire receiver accordingly, the response lamp The light 136 is turned on, and the red light 132 is blinked.

(Operation of fire hydrant equipment)
If a vehicle accident involving a fire occurs in the tunnel 10, the user goes to the fire hydrant storage box 30 near the fire occurrence location, presses the transmitter 134 of the notification device panel 130, and reports fire to the disaster prevention reception board of the monitoring center. A signal is transmitted, and a confirmation response signal is received from the disaster prevention reception board, and the response lamp 136 is turned on and the red indicator light 132 is blinked to confirm completion of 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 opened to release the locking, the front door 32 is slid and opened, and at the same time, the second upper door The front surface 38 of the second upper door 38 is opened and the foam nozzle 50 locked by the nozzle holder 54 is exposed on the back of the front door 38. The user removes the foam nozzle 50 from the nozzle holder 54 and pulls out the hose 52.

  When the vehicle is stopped in front of the fire hydrant storage box 30 and can not be operated from the road 15 side, the user operates from the supervisor passage 14 side.

  Subsequently, when the manual pilot valve 62 disposed on the right side of the upper surface door opening of the fire hydrant storage box 30 is opened by lever operation, the fire extinguishing water from the branch pipe 24a is used for the pilot piping 116a, the manual pilot valve 62 and the pilot piping 116b. The pressure is supplied to the cylinder chamber 110 of the fire hydrant valve 102 and the pilot pressure is increased, and the piston 112 is stroked outward against the spring 114 and the fire hydrant valve 102 is opened by separating the valve body 115 from the valve seat. Ru.

  When the hydrant valve 102 is opened, the extinguishing water from the water supply main 24 flows from the water supply pipe 25 toward the hose 52 of the hydrant storage box 30 through the hydrant valve 102, the automatic pressure regulation valve 104, and the foam mixer 106. When the foam stock solution is mixed at a predetermined ratio in the mixer 106 and the foam extinguishing water is released from the foam nozzle 50 of the hose 52 drawn from the fire hydrant storage box 30, the extinguishing foam formed by entraining air is released Be done.

  In addition, when the fire hydrant valve 102 is opened, it is necessary to transmit a pump start signal to the fire extinguishing pump equipment to activate it, so the pressure switch 125 for detecting water pressure and turning on is connected to the secondary side of the fire hydrant valve 102. It is provided. In place of the pressure switch 125, a fire hydrant valve open detection switch may be provided which is turned on by the lever open operation of the manual pilot valve 62 and transmits a pump start signal.

  When the fire is extinguished and the fire extinguishing operation is finished, the control lever is returned to the closed position and the manual pilot valve 62 is closed. As a result, the water in the cylinder chamber 110 is slowly drained through the orifice 126, the pilot pressure is reduced to zero, and the piston 112 is pushed back by the spring 114 to abut against the valve seat, closing the fire hydrant valve 102 Foam release is stopped.

  In addition, when inspecting the water discharge control mechanism, the person in charge goes out to the water discharge control mechanism storage unit 100 disposed in the management passage 20, and when the manual release valve 122 is opened, extinguishing water is supplied to the cylinder chamber 110 The pilot pressure is pressurized, allowing the hydrant valve 102 to open and allow a predetermined flush test to be performed. In this case, the manual drain valve 124 may be opened to close the fire hydrant valve 102.

[Modification of the present invention]
(Door opening and closing mechanism)
The door opening / closing mechanism of the front door and the second upper door shown in the above embodiment is an example, and the front door is locked in the closed position at the closed position of the second upper door, and along with the front opening of the second upper door. An appropriate mechanism is included as long as it is a function of releasing the lock of the front door and making it slide open, and making the first upper door open back together with the second front door.

(Foam fire hydrant equipment)
Although the above-mentioned embodiment exemplifies the foam fire hydrant installation which discharges a fire extinguisher, it is not limited to this but it is good also as a fire hydrant installation which discharges water for fire extinguishing.

(Others)
Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above embodiment.

10: Tunnel 12: Tunnel wall surface 14: Guard passage 15: Road 16: Fire hydrant equipment 18: Floor plate 20: Management passage 22: Duct 24: Water supply main 24a: Branch pipe 25: Water supply piping 28: Housing 30: Fire hydrant storage box 28: housing 31: front door opening 32: front door 34: front opening handle 34a: handle main body 35: fixed door 36: first upper door 37: front edge upper frame 38: second upper door 40: door Body 42: front edge frame door 44: handle 45: front hose outlet 46, 48, 76: hinge 50: foam nozzle 52: hose 54: nozzle holder 56: gas spring 58: stopper arm 60, 80, 92: guide pipe 61: pilot piping 62: manual pilot valve 64: shaft member 65: link lever 66: bearing member 70: hook arm 72: receiving member 74: positioning rib 75: opening 82: upper surface Source outlet 84: Upper surface door frame 86: Hose storage portion 90: Hose guide structure 100: Water discharge control mechanism storage portion 102: Fire hydrant valve 104: Automatic pressure control valve 106: Foam mixer 108: Foam stock solution tank 110: Cylinder chamber 112 : Piston 114: Spring 115: Valve body 116a, 116b: Pilot piping 122: Manual release valve 124: Manual drainage valve 125: Pressure switch 126: Orifice

Claims (8)

In a fire hydrant storage box in which a hose with a nozzle is internally wound and stored in a housing embedded in a guard passage along a tunnel wall surface,
In a front door opening formed on the front side of the housing which is on the road side, a front door disposed slidably in the vertical direction,
A first upper door pivotally supported on an upper surface door opening formed on the upper surface of the housing, which is on the surveillance personnel passage side, with the front edge upper frame side of the housing as an axis;
The door body is divided into a door body and a front edge frame door at a door opening formed by opening the front edge side of the first upper door, and the door body is pivotally supported so as to be able to be opened backward with respect to the front edge frame door A second upper door pivotally supported on the first upper door so as to be openable forward with respect to the first upper door, with the door main body as an axis at the back edge side of the door;
In the non-operating position of the front opening handle provided on the front door, the front edge frame door of the second upper door is locked to hold the front door in the closed position, and the front opening handle is operated by the operation of the front opening handle The locking of the second upper door with the front edge frame door is released to slide the front door open, and the front edge frame door of the second upper door with respect to the first upper door in the closed state, A door opening / closing mechanism that integrally opens the second upper door with the door body integrated;
The fire hydrant storage box characterized by having been provided.
In the fire hydrant storage box according to claim 1,
The door opening and closing mechanism is
A receiving member disposed upright on the lower surface of the front edge frame door of the second upper door;
Located behind the front opening handle and engaged with the receiving member in the non-operating position of the front opening handle to lock the front door to the front edge frame door and keep it closed, the front opening The front door is slid open by releasing the engagement with the receiving member by the turning operation of the handle, and the front door and the door main body are integrally opened and the second upper door is front-opened. A hook member to be
The fire hydrant storage box characterized by having been provided.
In the fire hydrant storage box according to claim 2,
A fire hydrant storage box characterized in that the receiving member is a U-shaped member erected on the lower surface of the front edge frame door.
The fire hydrant storage box according to claim 2, wherein a handle member used for opening the door is provided on the first upper door in a freely retractable manner.
In the fire hydrant storage box according to claim 1,
A fire hydrant storage box is provided between the second upper door and the housing, with a door opening biasing mechanism for assisting an opening force for opening the second upper door forward.
In the fire hydrant storage box according to claim 1,
A fire hydrant storage box provided with a lock mechanism for holding at a door open position between the first upper door and the housing or between the second upper door and the housing.
The fire hydrant storage box according to claim 1, wherein a nozzle locking mechanism for detachably holding the nozzle is provided on the back surface of the door main body in the second upper door.
In the fire hydrant storage box according to claim 1,
When the second upper door is opened forward and the first upper door is opened backward integrally with the second upper door, the fire hydrant valve separately disposed is disposed inside the upper surface opening of the housing. A fire hydrant storage box characterized in that a manual pilot valve provided with a control lever for remotely controlling and supplying extinguishing water to a hose with a nozzle is exposed.

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