Fire hydrant devices and fire hydrant facilities

Abstract

To enable a fire hose to be taken out simply and easily from a road side and a road surface side of a watchman passage.SOLUTION: A fire hydrant device includes: an upper door pivotally supported so as to be freely openable / closable vertically with a rear edge part as an axis and pivotally supported so as to be freely openable / closable vertically with a front edge part as an axis in a door opening formed on the top face; and a nozzle holder 86A disposed on the rear face of the upper door for detachably locking a foam nozzle 78 attached to the tip of a hose 76 stored inside. The nozzle holder 86A is locked in a state that the foam nozzle 78 is suspended both at the time when the upper door is opened with the rear edge part as an axis and at the time when the upper door is opened with the front edge part as an axis while the upper door is closed.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present invention relates to a fire hydrant device in which a fire hose with a nozzle attached to the tip is stored inside, and a fire hydrant facility in which the fire hydrant device is installed. [Background technology]

[0002] Conventionally, fire hydrant devices have been installed as emergency equipment inside tunnels on expressways, motorways, and the like. The fire hydrant device has a fire hydrant door that can be opened and closed freely, and houses a hose with a nozzle at the end and valves including a fire hydrant valve.

[0003] Fire hydrant devices are generally installed embedded in the tunnel walls along the side walls, for example at intervals of 50 meters. In the event of a vehicle accident involving a fire, in a tunnel with a guard passage, road users such as the driver of the accident vehicle climb up to the guard passage using steps or the like installed on the side of the guard passage, open the fire hydrant door of the fire hydrant device installed on the tunnel wall to the front, take out the hose with the nozzle, and carry out firefighting work.

[0004] The monitor's passage is a side wall passageway that is elevated above the road surface, allowing inspectors to safely inspect various equipment installed in the tunnel, including the fire hydrant systems, without interfering with vehicular traffic inside the tunnel.

[0005] In addition, in tunnels without guard passages, users such as the driver of the accident vehicle approach the fire hydrant installed on the tunnel wall, and similarly open the fire hydrant door forward, take out the hose with the nozzle, and perform fire extinguishing operations. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2006-181057 A [Patent Document 2] JP 2008-055024 A [Patent Document 3] JP 2009-285126 A Summary of the Invention [Problem to be solved by the invention]

[0007] Incidentally, in urban tunnels constructed using the shield construction method or the like, the structure does not allow fire hydrant devices to be embedded into the tunnel walls, and so it is necessary to embed the fire hydrant devices into the side (wall) of the guard passage.

[0008] However, when a fire hydrant device with a door that opens forward like a conventional fire hydrant is installed in a guard passage, there is a problem that when the fire hydrant door opens, it will exceed the building limit and jump out onto the road.

[0009] To solve this problem, a fire hydrant storage box has been proposed in which a fire hydrant storage box is embedded in the guard passageway, with a front door that slides open and close facing the road side, and an upper door that opens and closes upwards on the guard passageway surface.

[0010] With a fire hydrant storage box thus embedded in the lifeguard passageway, in the event of a fire caused by a vehicle accident, the user can simply and easily pull out the nozzle-equipped hose from the hose storage section to put out the fire by opening the front door facing the road. Also, if a vehicle stops in front of the fire hydrant device and operation from the front door is not possible, the user can open the upper door of the lifeguard passageway to pull out the nozzle-equipped hose to put out the fire without being hindered by the stopped vehicle.

[0011] By the way, a fire hydrant storage box that is embedded in a guard passage has a width of about 0.7 meters, which is narrower than the guard passage at about 0.35 meters, half the width of the guard passage, and a hose of about 30 meters is stored inside the fire hydrant storage box, coiled horizontally inward.

[0012] Furthermore, as shown in the schematic diagrams of Figures 23(A) and (B), a structure is being considered in which a foam nozzle 204 attached to the end of a hose 202 stored in a fire hydrant storage box 200 is fitted horizontally into a nozzle holder 208 arranged horizontally on the back surface of an upper door 206, and is engaged in a manner that allows it to be freely attached and detached.

[0013] However, when fire hydrant storage box 200 is embedded in the monitor's passage, it is assumed that it will be operated from the road side and from the road surface side of the monitor's passage, and the positional relationship between the position of the user operating it and the position of foam nozzle 204 engaged with exposed nozzle holder 208 will vary depending on the operating position, and the position from which foam nozzle 204 can be easily removed will vary depending on the user's position. Therefore, it is assumed that it will be difficult to remove foam nozzle 204 from the operating position depending on the position at which foam nozzle 204 is engaged.

[0014] An object of the present invention is to provide a fire hydrant device that allows a fire hose to be simply and easily removed from the road side and the road surface side of the guard passage, and a fire hydrant facility in which the fire hydrant device is installed. [Means for solving the problem]

[0015] (Fire hydrant equipment) The present invention relates to a fire hydrant device in which a fire hose with a nozzle attached to the tip is stored inside, An upper door is pivotally supported on a door opening formed on the upper surface of the fire hydrant device so as to be freely opened and closed in the vertical direction around a rear edge portion as an axis, and is pivotally supported on a door opening formed on the upper surface of the fire hydrant device so as to be freely opened and closed in the vertical direction around a front edge portion as an axis, It is placed on the back of the upper door and can be used to detachably attach the nozzle. vinegar A nozzle holder, Equipped with The nozzle holder is The door can be rotated in a predetermined direction relative to the rear surface of the upper door. When the upper door is opened about the rear edge portion, the upper door rotates to maintain the nozzle in a suspended state when the upper door is opened about the front edge portion, The nozzle is locked in a suspended state when the upper door is closed, when the upper door is opened around the rear edge, and when the upper door is opened around the front edge. vinegar It is characterized by the above.

[0016] ( Nozzle suspension ) The nozzle holder 、 Nozzle With the tip facing upwards In a suspended position Locking do.

[0017] (Fire hydrant facilities) The present invention relates to a fire hydrant facility having a fire hydrant embedded part which is an internal space below the road surface of a guard passage along a tunnel wall in a tunnel, The above-mentioned fire hydrant device is characterized in that it is embedded in the fire hydrant embedding section so that the top surface is exposed on the road surface side of the guard passage and the front surface is exposed on the road side. Effect of the Invention

[0018] (Basic Effects) The present invention relates to a fire hydrant device in which a fire hose with a nozzle attached to the tip is stored inside, and the fire hydrant device includes a top door that is pivotally supported in a door opening formed on the top surface of the fire hydrant device so as to be freely opened and closed in the vertical direction around a rear edge portion as an axis, and a top door that is pivotally supported in a vertical direction around a front edge portion as an axis, and a nozzle that is detachably engaged with the top door, which is disposed on the back surface of the top door. vinegar and a nozzle holder for holding the nozzle, The nozzle is maintained in a suspended state by being rotated when the upper door is opened around the rear edge portion and when the upper door is opened around the front edge portion, the nozzle is rotated to be suspended. The nozzle is locked in a suspended state when the upper door is closed, when the upper door is opened around the rear edge, and when the upper door is opened around the front edge. vinegar Therefore, when the device is embedded in the guard passage in the tunnel, the fire hose can be easily taken out from the road side and the road surface side of the guard passage. Also, because the nozzle is in a suspended state regardless of whether the upper door is open or closed, the fire hose connected to the nozzle does not deform due to the opening and closing of the upper door, which makes it possible to suppress wear and tear on the fire hose. [Brief description of the drawings]

[0019] [Figure 1] A diagram showing emergency equipment for tunnels, including fire hydrant equipment, installed in a tunnel on a motorway [Diagram 2] An explanatory diagram showing the appearance of a fire hydrant storage box under normal circumstances [Diagram 3] An explanatory diagram showing the appearance of the fire hydrant storage box in Figure 2 from the front and top. [Figure 4] An explanatory diagram showing the appearance of the fire hydrant storage box in Figure 2 from the side [Diagram 5] An explanatory diagram showing the front opening handle of a fire hydrant storage box provided with a front opening mechanism. [Figure 6] An explanatory diagram showing the structure of a front-opening mechanism that opens the second upper door from the front and slides it open by dropping the front door. [Figure 7] An explanatory diagram showing the internal structure of a fire hydrant storage box [Figure 8] An explanatory diagram showing the opening operation of the front door and the second upper door when operating from the road side [Figure 9] An explanatory diagram showing the opening operation of the first upper door when operating from the guard passage side. [Figure 10] FIG. 1 is an explanatory diagram showing a first embodiment of the nozzle holder in a state where the upper door is closed; [Figure 11] FIG. 13 is an explanatory diagram showing the state in which the foam nozzle is suspended by the nozzle holder of the first embodiment when the second upper door is in the front-open state and when the first upper door is in the rear-open state; [Figure 12] FIG. 11 is an explanatory diagram showing a second embodiment of the nozzle holder; [Figure 13] FIG. 11 is an explanatory diagram showing a third embodiment of the nozzle holder; [Figure 14] FIG. 13 is an explanatory diagram showing the suspension state of the foam nozzle by the nozzle holder of the third embodiment when the second upper door is in the front-open state and when the first upper door is in the rear-open state; [Figure 15] FIG. 13 is an explanatory diagram showing a nozzle holder according to a third embodiment as viewed from the front. [Figure 16] FIG. 11 is an explanatory diagram showing a nozzle holder according to a third embodiment as viewed from the side; [Figure 17] FIG. 13 is an explanatory diagram showing the nozzle holder of the third embodiment as viewed from the side in a state in which a part of the holder member is rotated around a vertical axis. [Figure 18] FIG. 13 is an explanatory diagram showing a nozzle holder according to a fourth embodiment as viewed from the front. [Figure 19] FIG. 13 is an explanatory diagram showing the nozzle holder of the fourth embodiment as viewed from the side; [Figure 20] FIG. 13 is an explanatory diagram showing another embodiment of the door structure in the fire hydrant storage box. [Figure 21] An explanatory diagram showing the opening operation of the front door and the top door when operating the fire hydrant storage box of Figure 13 from the road side. [Figure 22] FIG. 14 is an explanatory diagram showing the opening operation of the upper door when the fire hydrant device of FIG. 13 is operated from the monitor's passage side. [Diagram 23] An explanatory diagram showing the nozzle holder under consideration DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] [Outline of emergency equipment for tunnels] Fig. 1 is an explanatory diagram showing emergency tunnel facilities including fire hydrant facilities installed in a tunnel for expressways. As shown in Fig. 1, the inside of a tunnel 10 constructed by the shield method is covered with a cylindrical tunnel wall 12, and a road 15 is provided by dividing it with a deck 18. In this example, the road 15 has two lanes in one direction.

[0021] A guard passage 14 is provided along the tunnel wall 12 on the left side of the road 15 separated by the deck 18, and the internal space below the guard passage 14 is used as a duct 22 in which electric conduits and the like are laid. The guard passage 14 has dimensions of, for example, 90 cm in height and 70 cm in width.

[0022] The underside of the deck 18 on which the road 15 is formed is divided into multiple sections laterally of the tunnel, and for example, the section located below the guard passage 14 is used as a maintenance passage 20, which is also used as an emergency evacuation passage in the event of a fire inside the tunnel. A water supply main 24 is laid in the maintenance passage 20.

[0023] Fire hydrant facilities 16 are installed every 50 meters along the longitudinal direction of tunnel 10, and the fire hydrant equipment of fire hydrant facilities 16 is installed separately in a fire hydrant storage box 30 which stores the hose, and in a water discharge control mechanism storage section 26.

[0024] The fire hydrant storage box 30 is placed in a fire hydrant embedded section that is hollowed out in a box shape from the road surface of the monitor passage 14 to the wall surface on the road 15 side. The water discharge control mechanism storage section 260 is placed in the management passage 20 below the fire hydrant storage box 30, and a branch pipe 24a branching off from the main water supply pipe 24 is laid into the fire hydrant storage box 30, and a water supply pipe 25 that supplies fire water to the fire hydrant storage box 30 is also erected.

[0025] [Fire hydrant facilities] FIG. 2 is an explanatory diagram showing the appearance of a fire hydrant storage box under normal circumstances, FIG. 3 is an explanatory diagram showing the appearance of the fire hydrant storage box of FIG. 2 from the front and from above, and FIG. 4 is an explanatory diagram showing the appearance of the fire hydrant storage box of FIG. 2 from the side.

[0026] (External structure of fire hydrant storage box) 2 to 4, the fire hydrant storage box 30 of the fire hydrant equipment 16 is embedded in the internal space below the road surface of the monitor passage 14. The fire hydrant storage box 30 has a front door 32 arranged in a front door opening 33 formed on the upper center front side of a housing 31 so as to be able to slide freely in the vertical direction.

[0027] A first upper door 34 having the same width as the front door 32 is disposed 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 monitor passage 14. Furthermore, a second upper door opening 37 is formed in the center of the front side of the first upper door 34, and a second upper door 36 is disposed therein.

[0028] The first upper door 34 is supported on both sides of the front edge of the door by hinges 46 arranged at the front corners of the upper part of the housing 31, and can be opened upward from the rear around the hinges 46, as shown in FIG. 4 first upper door 34a.

[0029] The rear edge of the second upper door 36 is pivoted to the second top door opening 37 of the first upper door 34 by a hinge 42, and as shown in the second upper door 36a of Figure 4, it can be opened forward by opening upward around the hinge 42.

[0030] A front-opening handle 38 is journalled 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 locks the front door 32 in the closed position as shown when the second upper door 36 is closed. When a user operates the front-opening handle 38 from the road 15 side, opening the front door 32 releases the lock of the front door 32 against the second upper door 36, and the front door 32 falls to the back side of the housing 31 under its own weight, opening the front door opening 33. Also, by opening the second upper door 36 from the front, the second top door opening 37 of the fire hydrant storage box 30 is opened.

[0031] Here, the hinge 46 that pivots the first upper door 34 to the front corner portion of the housing 31, and the hinge 44 that pivots the front-opening handle 38 to the front edge of the second upper door 36 are arranged so that their axis lines are coaxial, and the front-opening handle 38, which engages the housing 31 and front door 32 in the closed position, is the fixed side, and the hinges 44, 46 pivotally support the first upper door 34 together with the second upper door 36 so that they can be freely opened from the rear.

[0032] A reporting device panel 48 is provided on the upper left front surface of the fire hydrant storage box 30. The reporting device panel 48 is provided with a red indicator light 50, a transmitter 52, a response lamp 54, and a telephone jack 55. The red indicator light 50 is always lit, allowing the location of the fire hydrant equipment to be known from a distance. In the event of a fire, when the transmitter 52 is pressed to turn on the push button switch, a transmission signal is sent to a disaster prevention receiving panel installed in a monitoring center in a monitoring room or the like, and a fire alarm is issued. In response to this, a response signal is sent from the disaster prevention receiving panel, which lights up the response lamp 54 and also causes the red indicator light 50 to flash.

[0033] [Front opening mechanism] Fig. 5 is an explanatory diagram showing the front opening handle of a fire hydrant storage box equipped with a front opening mechanism, Fig. 5(A) shows the front, and Fig. 5(B) shows the side as seen from XX in Fig. 5(A). Fig. 6 is an explanatory diagram showing the mechanical structure of the front opening mechanism that opens the second upper door from the front and slides it open by dropping the front door, Fig. 6(A) shows the closed state, and Fig. 6(B) shows the state when the front opening handle is opened.

[0034] As shown in Figure 5, a shaft member 56 of the front-opening mechanism is extended from both sides of the handle body 38a of the front-opening handle 38, which is supported by a hinge 44 at the tip of the second upper door 36 arranged on the top surface of the fire hydrant storage box 30, and when the second upper door 36 is in the closed state, the tip of the shaft member 56 is inserted into a shaft hole of a bearing member 58 arranged on the back side of the front door 32, thereby engaging the front door 32 with the second upper door 36 and holding it in the closed position.

[0035] 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 lock on the front door 32, and the front door 32 slides down due to its own weight, opening the front door opening 33.

[0036] As shown in FIG. 6(A), the front-opening mechanism 60 has one ends of a pair of bent links 62 connected within the handle main body 38a by a moving fulcrum 64, the bent position of the link 62 is fixed to the handle main body 38a side as a rotation fulcrum 66, and the other end of the link 62 is connected to a fulcrum 68 at the shaft end of the shaft member 56 as a sliding fulcrum 70, and further, the moving fulcrum 64 is urged upward as shown by a spring 72.

[0037] When the front-opening handle 38 is not operated, the link 62 rotates outward under the force of the spring 72, fitting the shaft member 56 into the shaft hole 58a of the bearing member 58 and engaging the front door 32 with the second upper door 36.

[0038] When the front-opening handle 38 is lifted up, as shown in FIG. 6(B), the moving fulcrum 64 moves downward against the spring 72 via a link mechanism not shown, causing the link 62 to rotate inward and pull the shaft member 56 inward, thereby disengaging the tip of the shaft member 56 from the shaft hole 58a of the bearing member 58, releasing the front door 32 from its lock. The front door 32 then slides down under its own weight, opening the front door opening 33.

[0039] 6, and may include any suitable link mechanism that pulls the shaft member 56 inward by lifting up the front-opening handle 38 and removes it from the shaft hole 58a of the bearing member 58.

[0040] [Internal structure of a fire hydrant storage box] FIG. 7 is an explanatory diagram showing the internal structure of a fire hydrant storage box, where FIG. 7(A) shows the front and FIG. 7(B) shows a plan view seen from the YY cross section of FIG. 7(A).

[0041] As shown in FIG. 7, the inside lower side of the housing 31 of the fire hydrant storage box 30 serves as a hose storage section 74, in which a shape-retaining hose 76 is overlapped and wound inwardly in a horizontal direction.

[0042] The rectangular shape of housing 31 seen from above has a width of approximately 1.4 meters and a depth of approximately 0.35 meters, and therefore, when hose 76 is wound inwardly inside hose storage section 74, the wound shape of hose 76 becomes a rounded rectangle consisting of two parallel lines and two semicircles, and the length of one turn of hose 76 wound inwardly inside flat rectangular housing 31 is approximately 3.5 meters. As the hose length required is 30 meters or more, hose 76 may be wound inwardly with 9 turns or more.

[0043] Here, a hose 76 wound inwardly within the housing 31 in a rounded rectangular shape is shown as parallel line hose portions 76a and 76c and semicircular hose portions 76b and 76d.

[0044] A hose guide structure 80 is provided on the central front side of the housing 31 for inwardly deforming the parallel-wire hose portion 76a on the front side of the hose 76 wound inwardly within the housing 31 into a rounded rectangle.

[0045] The hose guide structure 80 has four guide pipes 80a, 80b, 80c, and 80d made of metal pipes that stand up on a bottom plate 81, with the guide pipes 80a, 80d at both ends standing along the inner surface of the housing 31 and the central guide pipes 80b, 80c standing a predetermined length apart inward, and by winding the hose 76 inward along the guide pipes 80a, 80b, 80c, and 80d of the hose guide structure 80, the parallel hose portion 76a on the front side of the hose 76 is deformed inward and takes on an approximately gourd-like shape, and this deformation generates a repulsive force in the deformed parallel hose portion 76a of the hose 76 that causes it to spread outward.

[0046] By providing such a hose guide structure 80, the hose 76, which is overlapped and wound inward inside the housing 31, generates a repulsive force that tries to spread outward as the rounded-corner elliptical parallel-wire hose portion 76a is deformed inward by the hose guide structure 80, and a force is generated to press it against the inner wall of the housing 31, making it possible to reliably prevent the parallel-wire hose portions 76a, 76c of the overlapped and wound inward hose 76 from collapsing inward even if they become long.

[0047] Here, the hose guide structure 80 deforms the parallel hose portion 76a on the front side of the hose 76 inward, while the parallel hose portion 76c on the rear side is not deformed inward. However, due to the inward deformation of the parallel hose portion 76a, the force that tends to spread outward as a whole of the hose 76 increases, and it becomes possible to reliably prevent the parallel hose portion 76c on the rear side, which is not deformed inward, from collapsing inward.

[0048] Furthermore, when the front door 32 and the second upper door 36 or the first upper door 34 are opened to pull the hose 76 out, in addition to the force trying to push the hose out due to deformation of the radial hose portions 76b, 76d of the hose 76, a force trying to push the hose 76 out is also generated by the parallel hose portion 76a of the hose 76 due to inward deformation caused by the hose guide structure 80, making it possible to reduce the force required to pull out the hose 76.

[0049] Guide pipes 82a-82d and guide pipes 84a, 84b are arranged at the top of hose guide structure 80 so as to surround the inside of front door opening 33, first top door opening 35, and second top door opening 37 shown in Figures 1 and 2. When hose 76 is pulled out to the outside, it is brought into sliding contact with guide pipes 82a-82c or guide pipes 84a, 84b, thereby preventing wear on hose 76 and reducing the force required to pull out the hose.

[0050] In addition, a foam nozzle 78 connected to the tip of a hose 76 is detachably attached to the back surface of second upper door 36 by a nozzle holder 86. In this embodiment, nozzle holder 86 is attached by a suspension structure in which foam nozzle 78 is pivotally supported on the back surface of second upper door 36 and suspended, so that when twelfth upper door 36 is opened from the front as shown in upper door 36a in Figure 4, or when first upper door 34 is opened from the rear integrally with second upper door 36 as shown in first upper door 34a in Figure 4, nozzle holder 86 is attached to the back surface of second upper door 36 in a suspended state.

[0051] Therefore, when the second upper door 36 is opened from the front or the first upper door 34 is opened from the rear together with the second upper door 36, the foam nozzle 78 suspended from the back of the door will appear at the top of the fire hydrant storage box 30.

[0052] When the second upper door 36 is opened from the front, the foam nozzle 78 held on the back of the door appears at a position within a range of approximately 0.9 to 1.3 meters from the road 15, which corresponds to the range from the waist to the shoulders of a user standing on the road 15.Since the foam nozzle 78 appears right in front of the user, the foam nozzle 78 can be easily removed.

[0053] In addition, when the first upper door 34 is opened from the rear, the position at which the foam nozzle 78 held on the back of the door appears is anywhere in the range of approximately 0.2 to 0.4 meters from the road surface of the monitor passage 14, so that the foam nozzle 78 appears right in front of a user who is bending over the monitor passage 14 and operating the rear-opening handle 40, and the user can easily remove the foam nozzle 78 from the monitor passage 14 side.

[0054] Furthermore, an operation box is disposed inside the right side of the top opening of housing 31, and a fire hydrant valve opening / closing lever is provided on the operation box to open and close a manual pilot valve provided inside the operation box (not shown). When the fire hydrant valve opening / closing lever is operated to open, the manual pilot valve is opened, and the fire hydrant valve separately disposed in water discharge control mechanism storage section 26 shown in FIG. 1 can be remotely opened.

[0055] One or more of the operation box, the manual pilot valve, and the fire hydrant opening / closing lever may be placed in the free space secured by the hose guide structure 80. Also, a connecting member between the manual pilot valve and the fire hydrant opening / closing lever, or part of the piping from the manual pilot valve to the fire hydrant valve may be placed in the free space.

[0056] By arranging appropriate components in the available space as described above, it is possible to effectively utilize the space of the fire hydrant storage box that is placed in the watchman's passageway, where space is limited.

[0057] [Operation to open the second upper door and front door from the road side] FIG. 8 is an explanatory diagram showing the opening operation of the front door and the second upper door when operated from the road side.

[0058] As shown in Figure 8, when a user operates the fire hydrant storage box 30 from the road side, by lifting up the front opening handle 38, the front door 32 is released from its lock and slides down under its own weight, opening the front door opening 33.

[0059] Next, when the user performs a front-opening operation to open the second upper door 36 in the depth direction, as shown in Figures 6(A) and (B), the shaft members 56 arranged on both sides of the handle body 38a are pulled out from the bearing members 58 on the back surface of the front door 32, the second upper door 36 is opened forward around the hinge 42, and the second top door opening 37 is opened.

[0060] At this time, as shown in Figure 7 (A), the nozzle holder 86 located on the back side of the second upper door 36 is positioned in front of the user on the road, and the foam nozzle 78 engaged with the nozzle holder 86 appears in front of the user, allowing the user to easily remove the foam nozzle 78 and pull out the hose 76.

[0061] [Opening the upper door from the guard passage] FIG. 9 is an explanatory diagram showing the opening operation of the first upper door when operated from the monitor passage side.

[0062] As shown in Figure 9, when a user operates the fire hydrant storage box 30 from the monitor's passage, the user bends down from the monitor's passage and lifts up the rear-opening handle 40, which releases the first upper door 34 from its rear edge against the housing 31, and the first upper door 34 opens rearward around the hinge 46 at the front corner, opening the first top door opening 35.

[0063] At this time, the second upper door 36 is also opened to the rear together with the first upper door 34, centered around the hinge 44, the front-opening handle 38 supported by the hinge 44 does not move, and the tip of the shaft member 56 of the front-opening mechanism 60 shown in Figure 6, which is provided on the front-opening handle 38, remains fitted into the shaft hole 58a of the shaft member 58 arranged on the back surface of the front door 32, and the second upper door 36 is opened to the rear together with the first upper door 34 while maintaining the front door 32 engaged in the closed position.

[0064] When the first top door opening 35 is opened by opening the first upper door 34 from the rear, as shown in Figure 6 (A), the foam nozzle 78 engaged with the nozzle holder 86 located on the back side of the second upper door 36 appears in front of the user bending over in the monitor passage, allowing the user to easily remove the foam nozzle 78 and pull out the hose 76.

[0065] [First embodiment of nozzle holder] Fig. 10 is an explanatory diagram showing the first embodiment of the nozzle holder with the upper door closed, with Fig. 10(A) showing the front and Fig. 10(B) showing the side. Also, Fig. 11 is an explanatory diagram showing the suspension of the foam nozzle by the nozzle holder of the first embodiment with the second upper door open from the front (Fig. 11(A)) and the first upper door open from the rear (Fig. 11(B)).

[0066] As shown in Figure 10, the nozzle holder 86A of this embodiment has a holder body 90 mounted on a support member 88 arranged on the back surface of the second upper door 36, and is pivotably mounted on an axis 96 parallel to the axis of the second upper door 36 by the hinge 42, as shown in Figure 8, via an axis pin 94. At the tip of the holder body 90, a check portion 92 is provided with radially arranged check claws 92a made of multiple bent leaf springs that detachably grip the reverse tapered tip portion 78a of the foam nozzle 78.

[0067] In this manner, the nozzle 78 is detachably hung from the back surface of the second upper door 36 by the nozzle holder 86A, and as shown in FIG. 7(A), the hose 76 connected to the rear end of the foam nozzle 78 faces downward toward the hose storage section 74. As shown in FIG. 7(B), regardless of the position at which the hose 76 ends being wound horizontally, the hose 76 does not become significantly deformed, and the second upper door 36 can be smoothly opened and closed by opening it from the front, and the first upper door 34 which is integrated with the second upper door 36 can be smoothly opened and closed by opening it from the rear.

[0068] 11(A) shows the state in which the second upper door 36 is opened forward by the user operating it from the road side, and at this time the front door 32 is released and slides down to open. When the second upper door 36 is opened forward as shown in the figure, the holder body 90 supported by the pivot pin 94 maintains a suspended position in which it is suspended downward under the weight of the foam nozzle 78 and hose 76 that are suspended by engaging with the check claw 92a of the check part 92, in response to the movement of the support member 88 of the nozzle holder 86A fixed to the back surface of the door as the second upper door 36 opens, and the foam nozzle 78 is pulled up while in this suspended position, appearing in front of the user operating it from the road side, making it possible to easily remove the foam nozzle 78 when the second upper door 36 is open.

[0069] To remove foam nozzle 78 from nozzle holder 86A, foam nozzle 78 can be pulled downward to remove it from check claw 92a of check portion 92. When restoring the hydrant after use, the tip of foam nozzle 78 can be pushed from below into check claw 92a of check portion 92 of nozzle holder 86A to lock it in place.

[0070] 11(B) shows the state in which the first upper door 34 has been opened from the rear with the second upper door 36 integrated therewith by a user operating it from the security guard passage side. When the first upper door 34 is opened from the rear to the illustrated position, the support member 88 of the nozzle holder 86A fixed to the back surface of the door moves as the second upper door 36 opens, and the holder body 90 pivoted by the pivot pin 94 maintains a suspended position in which it is suspended downward under the weight of the foam nozzle 78 and hose 76 that are engaged and suspended by the check claws 92a of the check part 92. In this suspended position, the foam nozzle 78 is pulled upward, and the foam nozzle 78 appears in front of the user who is bending over to operate it from the security guard passage side, making it easy to remove the foam nozzle 78 with the first upper door 34 open.

[0071] It is preferable that the handle of foam nozzle 78 is suspended so that it faces sideways, as shown in Figures 7 and 11. By suspending the handle of foam nozzle 78 so that it faces sideways, it is possible to prevent the handle of foam nozzle 78 from moving to the back regardless of the direction from which the door is opened. In order to ensure that the handle of foam nozzle 78 is suspended so that it faces sideways, it is also possible to display instructions on the suspension method on the back of the upper door, to place a mark on the tip of the nozzle, or to provide a mechanism that locks only when the nozzle handle is facing sideways.

[0072] Also, a mechanism for locking the upper door when it is open may be provided. Locking the door can prevent the upper door from closing due to the force of pulling down foam nozzle 78 when removing it.

[0073] In addition, the force with which the check claws 92a of the check portion 92 of the nozzle holder 86A hold the foam nozzle 78 is sufficient to withstand the weight of the foam nozzle 78 and the portion of the hose 76 that floats when the top door is open.

[0074] In addition, the retention can be released by the sum of the weight of foam nozzle 78 and the portion of hose 76 that floats when the top door is opened, and the pulling force required to remove foam nozzle 78.

[0075] In addition, a switch may be provided that turns on when foam nozzle 78 is pressed into check claw 92a of check portion 92 from below, and a mechanism may be provided in which the gripping force on the nozzle is released by releasing the switch.

[0076] [Second embodiment of the nozzle holder] Figure 12 is an explanatory diagram showing a second embodiment of the nozzle holder, where Figure 12(A) shows the front, Figure 12(B) shows the side, and Figure 12(C) shows a plan view of the box-shaped nozzle gripping portion as viewed from below.

[0077] As shown in Figure 12, the nozzle holder 86B of this embodiment is the same as the embodiment of Figure 11 in that the holder body 90 is freely swingable by an axis pin 94 along an axis line 96 parallel to the axis line of the second upper door 36 by the hinge 42, as shown in Figure 8, on a support member 88 arranged on the back surface of the second upper door 36, but a box-shaped nozzle gripping portion 98 is provided at the tip of the holder body 90.

[0078] The nozzle gripping portion 98 has openings on the left and right sides for inserting and removing the reverse tapered tip 78a of the foam nozzle 78, and a lower opening 98a is formed in the lower lateral direction with a width sufficient to pass through the base side of the reverse tapered tip 78a, and an arc-shaped notch 98b is formed in the center of the lower opening 98a into which the reverse tapered tip 78a of the foam nozzle 78 received from the lateral direction is fitted and held.

[0079] With the nozzle holder 86B of this embodiment, the holder body 90 is supported by an axis pin 94 against a support member 88 on the back surface of the door, making it possible to always maintain a constant suspension position of the foam nozzle 78 regardless of the opening or closing position of the first upper door 34, thereby enabling the first upper door 34, which is integrated with the second upper door 36, to be opened and closed smoothly by opening from the rear.

[0080] In addition, the foam nozzle 78 can be suspended and engaged by fitting the reverse tapered tip 78a of the foam nozzle 78 into the box-shaped nozzle gripping portion 98 located at the tip of the holder main body 90 from either the left or right side, and when the first upper door 34 is opened, the foam nozzle 78, which is suspended and engaged in the nozzle gripping portion 98, can be easily removed by pulling it out in either the left or right direction.

[0081] The reverse taper tip portion 78a has a structure in which the diameter at the tip is wider than the base side. The arc-shaped notch 98b has a structure in which the diameter at the tip is wider than the base side of the reverse taper tip portion 78a and narrower than the tip of the reverse taper tip portion 78a. In addition, the lower opening 98a has a width that allows the base side of the reverse taper tip portion 78a to pass through, so that the nozzle is inserted from the lower opening 98a through the reverse taper tip portion 78a to the notch 98b, and then released by releasing the foam nozzle 78, etc., so that the nozzle falls to a position where the diameters of the notch 98b and the reverse taper tip portion 78a are equal, and the nozzle is fitted and held. This restricts horizontal and downward movement, and upward movement is also restricted by the weight of the nozzle itself.

[0082] When removing foam nozzle 78, foam nozzle 78 can be removed from lower opening 98a by shifting foam nozzle 78 upward and lifting foam nozzle 78 to a height where reverse tapered tip 78a is smaller than the width of lower opening 98a. The reverse tapered tip may be a gourd-like shape that is concave midway in the height direction. In this case, lower opening 98a should have a width that allows it to pass through the concave portion of reverse tapered tip 78a.

[0083] As shown in Fig. 12, it is preferable that the handle of foam nozzle 78 is suspended so that it faces sideways. By suspending the handle of foam nozzle 78 so that it faces sideways, it is possible to prevent the handle of foam nozzle 78 from moving to the back side regardless of the direction from which the door is opened. In order to ensure that the handle of foam nozzle 78 is suspended so that it faces sideways, a notice indicating the suspension method may be displayed on the back surface of the upper door, or a mark may be placed on the nozzle tip. Also, a guide may be provided on nozzle gripping portion 98, facing downward from the periphery of notch 98b, with a length approximately equal to the height from reverse tapered tip 78a to the handle.

[0084] [Third embodiment of nozzle holder] Fig. 13 is an explanatory diagram showing a third embodiment of the nozzle holder, Fig. 13(A) shows the inside front view with the front of the housing and a part of the front door broken away, and Fig. 13(B) shows a cross section seen from the side. Fig. 14 is an explanatory diagram showing the suspension of the foam nozzle by the nozzle holder when the second upper door is in the front-open state (Fig. 14(A)) and when the first upper door is in the rear-open state (Fig. 14(B)). Fig. 15 is an explanatory diagram showing the third embodiment of the nozzle holder when the upper door is open, as seen from the front, Fig. 16 is an explanatory diagram showing the nozzle holder of the third embodiment when seen from the side, and Fig. 17 is an explanatory diagram showing the nozzle holder of the third embodiment when some of the holder members are rotated around a vertical axis, as seen from the side.

[0085] (Nozzle holder configuration with three-axis degrees of freedom) As shown in FIGS. 15 to 17, the nozzle holder 86C of this embodiment is made up of a support member 120, a first holder member 124, a second holder member 128, a third holder member 132, and a check portion 138.

[0086] The support member 120 has two support arms 120a extending forward of an attachment portion 120b, and the attachment portion 120b is fastened and fixed to the rear surface of the second upper door 36 by a bolt 121 and a nut 122.

[0087] A first holder member 124 is supported by a pin 126 in a shaft hole at the tip end of the support arm 120a so as to be rotatable about a first axis 140. The first holder member 124 is a member having an upwardly opening U-shaped cross section. Here, the first axis 140 of the pin 126 is parallel to the axis of the second upper door 36 formed by the hinge 42 shown in FIG.

[0088] Below the first holder member 124, a second holder member 128 is supported by a bolt shaft 130 and a nut 131 so as to be rotatable about a second axis 142. The second holder member 128 is a member having a U-shaped cross section that opens downward, and the second axis 142 is perpendicular to the first axis 140.

[0089] Below the second holder member 128, a third holder member 132 is supported by an axis pin 134 so as to be rotatable about a third axis 144. The second holder member 128 is a member having a U-shaped cross section that opens downward, and the third axis 144 is perpendicular to the second axis 142.

[0090] A check portion 138 is fixed to the underside of third holder member 132 by rivets 136. Check portion 138 has check claws 138a made of four leaf springs formed in a substantially V-shape arranged radially, and by fitting reverse tapered tip portion 78a of foam nozzle 78 into check claws 138a from below, foam nozzle 78 is detachably engaged in a suspended state.

[0091] In nozzle holder 86C of this embodiment, check portion 138 is connected to support member 120, which is the fixed side, via first holder member 124, second holder member 128, and third holder member 132 so as to be freely rotatable about three axes defined by first to third axial lines 140, 142, 144 defined by pivot pin 126, bolt shaft 130, and pivot pin 134. In other words, in nozzle holder 86C of this embodiment, check portion 138, which engages foam nozzle 78, is suspended from the rear surface of second upper door 36, which is the fixed side, in a free state with degrees of freedom in three axes.

[0092] In addition, since the check portion 138 is freely suspended from the support member 120, which is the fixed side, via the first holder member 124, the second holder member 128 and the third holder member 132, which have three degrees of freedom in three axes, the check portion 138 moves freely around three axes in response to the movement of the foam nozzle 78 to which the hose 76 is connected as the door is opened and closed, and the engagement by the multiple check claws 138a gripping the reverse tapered tip portion 78a at the tip of the nozzle is uniform and well-balanced, so that the foam nozzle 78 can be reliably engaged in a hanging state without the engagement force of the four check claws 138a on the foam nozzle 78 being made too strong.

[0093] Furthermore, since the foam nozzle 78 can be securely and detachably engaged without increasing the engagement force of the check claw 138a, the foam nozzle 78 engaged with the nozzle holder 86C can be removed with a light force, improving operability.

[0094] (Upper door closed) As shown in Figure 13, when the second upper door 36 is in the normal state with the second upper door 36 closed, the support member 120 fixed to the back surface of the closed second upper door 36 has the support arm 120a facing downward, and the check portion 138 is suspended below it via the first holder member 124, the second holder member 128 and the third holder member 132 which are connected with three-axis degrees of freedom, and the reverse tapered tip portion 78a of the foam nozzle 78 is fitted into the four check claws 138a of the check portion 138, and is engaged in a suspended state by supporting the weight of the foam nozzle 78 and the hose 76.

[0095] When the foam nozzle 78 is suspended by the nozzle holder 86C on the back surface of the second upper door 36 which is in the closed state in this manner, the hose 76 connected to the rear end of the foam nozzle 78 faces downward toward the hose storage section 74, as shown in Figure 7(A). As shown in Figure 7(B), regardless of the position at which the hose 76 ends being wound horizontally, the hose 76 does not become significantly deformed, and the second upper door 36 can be smoothly opened and closed by opening it from the front, and the first upper door 34 which is integrated with the second upper door 36 can be smoothly opened and closed by opening it from the rear.

[0096] (Upper door open) 14(A) shows the state in which the second upper door 36 is opened from the front by the user operating it from the road side, and the front door is released from the lock and slides down to open. When the second upper door 36 is opened to the front as shown in the figure, the foam nozzle 78 engaged with the checker part 138 supported in a free state via the first holder member 124, the second holder member 128, and the third holder member 132, which have three degrees of freedom, is pulled up in response to the movement of the support member 120 of the nozzle holder 86C fixed to the back surface of the door as the second upper door 36 opens, and the foam nozzle 78 appears in front of the user operating it from the road side, making it easy to take out the foam nozzle 78 when the second upper door 36 is open.

[0097] To remove foam nozzle 78 from nozzle holder 86C, because check portion 138 is freely suspended from support member 120, which serves as the fixed side, foam nozzle 78 can be easily removed from check claws 138a of check portion 138 by pulling foam nozzle 78 downward from the front. When restoring the fire hydrant after use, the tip of foam nozzle 78 can be easily locked by pushing it from below into check portion 138 of nozzle holder 86C.

[0098] 14(B) shows the state in which the first upper door 34 has been opened from the rear with the second upper door 36 integrated therewith by a user operating it from the side of the security guard passage. When the first upper door 34 is opened from the rear as shown in the figure, the foam nozzle 78 engaged with the checker portion 138 supported in a free state via the first holder member 124, the second holder member 128, and the third holder member 132, each having three degrees of freedom, is pulled upward in response to the movement of the support member 120 of the nozzle holder 86C fixed to the rear surface of the second upper door 36, and the foam nozzle 78 appears in front of the user who is bending over to operate it from the side of the security guard passage, making it possible to easily remove the foam nozzle 78 with the first upper door 34 open.

[0099] Here, the nozzle holder 86C is positioned on the back surface of the second upper door 36 by fixing the support member 120 at a position deeper than the center position between the front and rear of the second upper door 36. Therefore, when the first upper door 34 is opened from the rear with the second upper door 36 integrated as shown in Figure 14(B), the nozzle holder 86C is raised to a higher position than when it is opened from the front as shown in Figure 14(A), making it easier to remove the foam nozzle from the monitor passage side.

[0100] In addition, as shown in Figure 14 (B), the position of at least a portion of the foam nozzle 78 when the first upper door 34 is opened from the rear is configured to be higher than the position of at least a portion of the foam nozzle 78 when the second upper door 36 shown in Figure 14 (A) is opened from the front, making it easier for an operator to remove the foam nozzle 78 from the monitor passage side.

[0101] In addition, in the first embodiment of Figure 11, the support member 88 is provided in the center of the back surface of the second upper door 36, but by providing the support member 88 on the depth side of the back surface of the second upper door 36, as in the third embodiment of Figure 14, the position of at least a part of the foam nozzle 78 when the first upper door 34 is opened from the rear is configured to be higher than the position of at least a part of the foam nozzle 78 when the second upper door 36 is opened from the front, making it easier for an operator to remove the foam nozzle 78 from the monitor passage side.

[0102] Furthermore, by positioning the nozzle holder 86C on the back surface of the second upper door 36 at the center position in the front-to-rear direction of the door, as in the first embodiment of Figure 11, the pulled-up position of the nozzle holder 86C can be made to be the same height when the second upper door 36 is opened to the front and when the first upper door 34 is opened to the rear with the second upper door 36 integrated.

[0103] Moreover, the checker portion 138 of the third embodiment shown in FIGS. 14 to 17 may be substituted for the nozzle gripping portion 98 of the second embodiment shown in FIG.

[0104] [Fourth embodiment of the nozzle holder] FIG. 18 is an explanatory diagram showing a nozzle holder according to a fourth embodiment of the nozzle holder as viewed from the front, and FIG. 19 is an explanatory diagram showing the nozzle holder according to the fourth embodiment of the nozzle holder as viewed from the side.

[0105] (Nozzle holder configuration with two-axis degrees of freedom) As shown in FIGS. 18 and 19, the nozzle holder 86D of the present embodiment is made up of a support member 120, a first holder member 124, a second holder member 146, and a check portion 138.

[0106] The support member 120 has two support arms 120a extending in front of an attachment portion 120b, and the attachment portion 120b is fastened and fixed to the rear surface of the second upper door 36 by a bolt 121 and a nut 122.

[0107] A first holder member 124 is supported by an axis pin 126 in an axis hole on the tip side of the support arm 120a so as to be rotatable about a first axis line 140. The first holder member 124 is parallel to the axis line of the second upper door 36 defined by the hinge 42 shown in FIG.

[0108] A second holder member 146 is supported below the first holder member 124 by a bolt shaft 130 and a nut 131 so as to be rotatable about a second axis 142 in the vertical direction. The second holder member 146 is a member having a rectangular cross section that opens to the side, and the second axis 142 is perpendicular to the first axis 140.

[0109] A check portion 138 is fixed to the underside of second holder member 146 by rivets 136. Check portion 138 has check claws 138a formed by four leaf springs arranged radially, and by fitting reverse tapered tip portion 78a of foam nozzle 78 into check claws 138a from below, foam nozzle 78 is detachably engaged in a suspended state.

[0110] In nozzle holder 86D of this embodiment, check portion 138 is connected to support member 120, which is the fixed side, via first holder member 124 and second holder member 146 so as to be freely rotatable about two axes defined by first and second axis lines 140, 142 formed by shaft pin 126 and bolt shaft 130. That is, in nozzle holder 86D of this embodiment, check portion 138, which engages foam nozzle 78, is suspended with two degrees of freedom on the back surface of second upper door 36, which is the fixed side.

[0111] In addition, since the check portion 138 is suspended freely around two axes from the support member 120, which is the fixed side, via the first holder member 124 and the second holder member 146, which have two-axis degrees of freedom, the check portion 138 moves freely around two axes in response to the movement of the foam nozzle 78 to which the hose 76 is connected as the door is opened and closed, and the engagement by the multiple check claws 138a gripping the reverse tapered tip portion 78a at the tip of the nozzle is uniform and well-balanced, so that the foam nozzle 78 can be reliably engaged in a suspended state without the engagement force of the four check claws 138a on the foam nozzle 78 being made too strong.

[0112] Furthermore, since the foam nozzle 78 can be securely and detachably engaged without increasing the engagement force of the check claw 138a, the foam nozzle 78 engaged with the nozzle holder 86D can be removed with a light force, improving operability.

[0113] When a user opens the second upper door 36 from the road side, the foam nozzle 78, which is engaged with the check portion 138 supported in a free state via the first holder member 124 and the second holder member 146 having two-axis degrees of freedom, is pulled upward in response to the movement of the support member 120 of the nozzle holder 86D fixed to the back surface of the door as the second upper door 36 opens, and the foam nozzle 78 appears right in front of the user operating it from the road side, making it possible to easily remove the foam nozzle 78 when the second upper door 36 is open.

[0114] In addition, when the first upper door 34 is opened from the rear with the second upper door 36 integrated by a user operating it from the monitor passage side, the foam nozzle 78, which is engaged with the check portion 138 supported in a free state via the first holder member 124 and the second holder member 146, which have two-axis degrees of freedom, is pulled upward in response to the movement of the support member 120 of the nozzle holder 86D fixed to the back surface of the door as the second upper door 36 opens, and the foam nozzle 78 appears in front of the user who is bending over to operate it from the monitor passage side, making it possible to easily remove the foam nozzle 78 when the first upper door 34 is open.

[0115] 12. The check portion 138 of the third embodiment shown in FIGS. 18 and 19 may be replaced with the nozzle gripping portion 98 of the second embodiment shown in FIG.

[0116] [Another embodiment of the door opening and closing structure] Figure 20 is an explanatory diagram showing another embodiment of the door structure of a fire hydrant storage box, Figure 21 is an explanatory diagram showing the opening operation of the front door and upper door when the fire hydrant storage box of Figure 20 is operated from the road side, and Figure 22 is an explanatory diagram showing the opening operation of the upper door when the fire hydrant storage box of Figure 20 is operated from the guard passage side.

[0117] (Front opening upper door) The door opening and closing structure of this embodiment shown in Figure 20 is characterized in that, as opposed to the embodiment in which the upper door in Figure 2 is divided into a first upper door 34 and a second upper door 36, the upper door 100 is a single door and is supported on a shaft so that it can be opened freely both front and rear.

[0118] When a user operates the front door from the road side, the front door 32 is released from its lock by operating the front opening handle 38, and the front door 32 slides down and is opened as shown in FIG.

[0119] The upper door 100 is opened by holding the front opening handle 38 and opening it upward, at which time the nozzle holder 86 arranged on the back surface of the upper door 100 appears in front of the user. Note that the foam nozzle engaged with the nozzle holder 86 is not shown in the figure.

[0120] The engagement of the front door 32 with the upper door 100 has the same structure as shown in Figures 5 and 6. When a user operates it from the road side, by operating the front opening handle 38, the shaft members 56 taken out on both sides of the handle body 38a are pulled in and come out of the shaft holes of the bearing members 58 arranged on the back surface of the front door 32, thereby releasing the engagement with the front door 32, and the front door 32 can be opened by sliding down, and the upper door 100 can be opened.

[0121] As shown in Fig. 21, the structure of the rear edge for opening the upper door 100 from the front is such that shaft members 104 are taken out from both sides of the handle body 102a of the rear-opening handle 102 of the upper door 100, and the tip of the shaft member 104 is fitted into a shaft hole of a bearing member 106 fixed to the housing 31. This structure is the same opening and closing structure as the front-opening handle 38 side shown in Figs. 5 and 6.

[0122] Therefore, the upper door 100 is opened and closed in the vertical direction about the axis line of both the shaft member 104 of the rear opening handle 102 by fitting into and supporting the shaft member 106 on the housing 31 side.

[0123] (Top door opens from the rear) When a user operates the fire hydrant storage box 30 in Fig. 20 from the guard passage side, operating the rear-opening handle 102 releases the lock with the housing 31 side, and the upper door 100 can be opened from the rear as shown in Fig. 22. At this time, the nozzle holder 86 arranged on the back surface of the upper door 100 appears in front of the user who is bending over.

[0124] As shown in FIG. 21, the opening and closing structure for opening the upper door 100 from the rear includes an axis member 110 supported on the back side of both sides of the front edge of the upper door 100, and correspondingly, semi-cylindrical bearing members 108 that open upward are fixedly positioned on both sides of the front edge of the top door opening 112 of the housing 31, and with the axis member 110 of the upper door 100 fitted into the bearing members 108, the upper door 100 is supported about the axial center line of both members so that it can be opened from the rear.

[0125] In addition, the front-opening operating handle 38 provided in the center of the front edge of the upper door 100 has a tip of an axis member 56 inserted into an axis member 58 on the inside of the front door 32, thereby enabling the upper door 100 to be opened from the rear while keeping the front door 32 engaged in the closed position.

[0126] In the fire hydrant storage box 30 with the door opening and closing structure shown in Figures 20 to 22, when the upper door 100 is closed, the foam nozzle is engaged in a suspended state suspended by the nozzle holder 86 on the back surface of the door, and even when the upper door 100 is opened front or rear, the foam nozzle maintains its suspended position suspended by the nozzle holder 86 and is pulled up as the upper door 100 is opened, so that the position of the nozzle does not change when the upper door 100 is opened or closed, making it possible to easily remove the nozzle with the upper door 100 open.

[0127] [Modifications of the present invention] (Nozzle holder) The claw portion or box-shaped nozzle gripping portion that removably engages the foam nozzle using the nozzle holder shown in the above embodiment is just one example, and any appropriate structure can be used as long as it can removably engage the foam nozzle in a suspended state on the back surface of the door.

[0128] (2-axis or 3-axis degree of freedom nozzle holder) In the above embodiment, two-axis or three-axis degrees of freedom of the check section are achieved by multi-stage connection of an axle pin and a U-shaped holder member to a support member fixed to the rear surface of the upper door, but this is not limited to this. For example, two-axis or three-axis degrees of freedom may be achieved by connecting the check section via a ball joint so that it can swing freely to a support member fixed to the rear surface of the upper door.

[0129] (Foam fire hydrant equipment) The above embodiment has been described with reference to a foam fire hydrant system that discharges fire-extinguishing foam, but the present invention is not limited to this and may be a fire hydrant system that discharges fire-extinguishing water.

[0130] (others) Although the above embodiment has been described with reference to a fire hydrant system having a front door, the present invention is not limited thereto, and the fire hydrant system may have a structure that does not have a front door.

[0131] In addition, the above embodiment is an example of a tunnel fire hydrant, but it may be used for a fire hydrant buried in a general road. Also, the fire hydrant storage box may be exposed without being buried. When used for an exposed type fire hydrant storage box, it is preferable that the upper door is at a height of about 1 meter so that it is easy to open and to take out the nozzle. In addition, the fire hydrant storage box of the present invention may be applied to surfaces at different heights where people can walk, such as two passage surfaces at different heights, or the top and bottom of a stage in a gymnasium or stage, and the wall surface adjacent to the surface.

[0132] Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages of the present invention, and is not limited to the numerical values ​​shown in the above embodiment. [Explanation of symbols]

[0133] 10: Tunnel 12: Tunnel wall 14: Guard passage 15: Road 16: Fire hydrant equipment 18: Floor slab 20: Management passage 22: Duct 24: Water main 24a: Branch piping 25: Water supply pipe 26: Water discharge control mechanism storage section 30: Fire hydrant storage box 31: Cabinet 32: Front door 33: Front door opening 34: First upper door 35: First top door opening 36: 2nd upper door 37: Second top door opening 38: Front opening handle 40,102: Rear opening handle 42, 44, 46: Hinge 48: Reporting device panel 56,104: Shaft member 58,106: Bearing materials 58a: Shaft hole 60: Front opening mechanism 74: Hose storage section 76: Hose 78: Foam nozzle 78a: Reverse tapered tip 80: Hose guide 80a-80d, 82a-82c, 84a, 84b: Guide pipes 86, 86A, 86B, 86C, 86D: Nozzle holder 88,120: Support member 90:Holder body 92,138: Check Club 92a, 138a: Check claw 94: Axle pin 98: Nozzle gripping part 100: Upper door 124: First holder member 126,134: Axle pin 128, 146: Second holder member 130: Bolt shaft 132: Third holder member 140: 1st axis center line 142: 2nd axis center line 144: 3rd axis center line

Claims

1. In a fire hydrant device in which a fire hose with a nozzle attached to the tip is stored inside, An upper door is pivotally supported in a door opening formed on the upper surface of the fire hydrant device so as to be freely opened and closed in the vertical direction around a rear edge portion as an axis, and is pivotally supported in a door opening formed on the upper surface of the fire hydrant device so as to be freely opened and closed in the vertical direction around a front edge portion as an axis, A nozzle holder is disposed on a rear surface of the upper door and detachably holds the nozzle; Equipped with The nozzle holder is The upper door is rotatable in a predetermined direction relative to the rear surface of the upper door, This fire hydrant device is characterized in that when the upper door is opened about the rear edge portion as an axis and when the upper door is opened about the front edge portion as an axis, it rotates to maintain the nozzle in a hanging position, thereby locking the nozzle in a hanging position when the upper door is closed, when the upper door is opened about the rear edge portion as an axis, and when the upper door is opened about the front edge portion as an axis.

2. The fire hydrant device according to claim 1, The fire hydrant device is characterized in that the nozzle holder engages the nozzle in a suspended state with the tip facing upward.

3. A fire hydrant facility having a fire hydrant embedded part which is an internal space below the road surface of a guard passage along a tunnel wall in a tunnel, 3. A fire hydrant facility according to claim 1, wherein the fire hydrant device is embedded in the fire hydrant embedded portion so that the upper surface is exposed on the road surface side of the guard passage and the front surface is exposed on the road side.

Images