Fire extinguisher storage device

Abstract

To enable easy and safe removal of a fire extinguisher from a housing installed at a high position.SOLUTION: A fire hydrant device 10 is installed at a predetermined height above a road surface of a monitoring person passage 34 provided along a tunnel wall surface 26 having a road, in proximity or in contact with the tunnel wall surface 26, and includes: a fire extinguisher storage section 52 in which a fire extinguisher 74 is stored; an opening provided at a position corresponding to the fire extinguisher storage section 52 in a front portion; and a first fire extinguisher moving mechanism 76A that, with a predetermined operation when a user removes the fire extinguisher 74 stored in the fire extinguisher storage section 52 through the opening, forms an inclined path 86 that allows the fire extinguisher 74 to move to a location outside the fire hydrant device 10 and located on the front side and lower side relative to the position where the fire extinguisher is stored in the fire extinguisher storage section 52. The first fire extinguisher moving mechanism 76A extends the inclined path 86 in conjunction with the predetermined operation.SELECTED DRAWING: Figure 13

Description

[Technical Field]

[0001] The present invention relates to a fire extinguisher storage device for tunnels, which stores a fire extinguisher in a housing. [Background technology]

[0002] Conventionally, fire hydrants have been installed as emergency tunnel equipment in tunnels such as those on expressways and expressways. A fire hydrant device has a hose with a nozzle attached to the end and valves stored in a fire hydrant storage section of a housing equipped with a fire hydrant door, and a fire extinguisher storage section equipped with a fire extinguisher door, which stores, for example, two fire extinguishers. In this way, fire hydrant devices with the function of a fire extinguisher storage device are generally installed by embedding boxes into the tunnel wall at intervals of, for example, 50 meters along the length of the tunnel (Patent Document 1).

[0003] However, if it is difficult to create an embedded section (recess) for the fire hydrant device in the wall of the tunnel body by cutting out a box or the like, it is necessary to install the fire hydrant device in an exposed state in the guard passage.

[0004] In such cases, a mounting structure has been proposed for wall-mounting a fire hydrant device on the tunnel wall, and the mounting structure is composed of a main support part that is fixed to the tunnel wall and a posture-maintaining member that maintains the posture of the fire hydrant device (Patent Document 2). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-055073 [Patent Document 2] Japanese Patent Application Publication No. 2020-078429 [Patent Document 3] Japanese Patent Application Publication No. 5-123412 [Patent Document 4] Japanese Patent Application Publication No. 2019-68956 [Patent Document 5] Patent Publication No. 2021-186453 Summary of the Invention [Problem to be solved by the invention]

[0006] On the other hand, in order to open the fire extinguisher door of a fire hydrant device and easily and safely remove the fire extinguisher stored inside, the Fire Service Act stipulates that the height of the fire extinguisher lever must be 1.5m or less from the road surface, and this must also be met when installing it in a tunnel.

[0007] However, if the height from the road surface to the guard passageway is about 1m and the fire hydrant device is installed so that the height of the fire extinguisher lever is 1.5m or less from the road surface, the height of the guard passageway from the road surface will be at most a few tens of centimeters. Even if there were no restrictions on the installation height and the fire hydrant device could be installed at a relatively high location, for example, 2m above the road surface of the guard passageway, when removing a fire extinguisher weighing about 10kg stored at such a height, there is a risk that it will be dropped, or the impact will cause the fire extinguisher to be thrown out or damaged.

[0008] An object of the present invention is to provide a fire extinguisher storage device that allows a fire extinguisher to be easily and safely removed from a housing installed at a high position. [Means for solving the problem]

[0009] (Fire extinguisher storage device) The present invention provides a fire extinguisher storage device that is installed at a predetermined height above the road surface of a guard passageway that is provided along the wall surface of a tunnel having a road, in proximity to or in contact with the tunnel wall surface, a fire extinguisher storage section in which a fire extinguisher is stored; An opening provided at a position corresponding to the fire extinguisher storage section on the front surface in the installed state; a fire extinguisher moving mechanism that forms a ramp that allows the fire extinguisher to be moved to a location outside the fire extinguisher storage device that is forward and lower than the location where the fire extinguisher is stored in the fire extinguisher storage section, by a predetermined operation when a user takes out the fire extinguisher stored in the fire extinguisher storage section through the opening; Equipped with The fire extinguisher moving mechanism is characterized by extending the ramp in response to a predetermined operation.

[0010] (First fire extinguisher moving mechanism) The first fire extinguisher moving mechanism is a fire extinguisher holding portion that detachably holds the bottom of the fire extinguisher when the operation lever of the fire extinguisher is in the upper position in the stored state of the fire extinguisher; a fire extinguisher guide portion connected to the front side of the fire extinguisher holding portion and extending from the bottom side of the fire extinguisher toward the operating lever side when the fire extinguisher is stored; a shaft portion disposed at a connection portion between the fire extinguisher holding portion and the fire extinguisher guide portion, the shaft portion supporting the upper end of the fire extinguisher guide portion so as to be rotatable about an axis; Equipped with The fire extinguisher guide portion rotates around an axis with its upper end facing forward, and when positioned at a predetermined position below the bottom of the fire extinguisher and above the road surface of the guard passage, it extends forward to form a ramp that guides the withdrawal of the fire extinguisher. [Effects of the Invention]

[0011] (Effect of fire extinguisher storage device) The fire extinguisher storage device of the present invention comprises a fire extinguisher storage section in which the fire extinguisher is stored, an opening provided on the front part when installed at a position corresponding to the fire extinguisher storage section, and a fire extinguisher moving mechanism that, when a user removes a fire extinguisher stored in the fire extinguisher storage section through the opening, moves the fire extinguisher by a specified operation so that at least the top of the operating lever of the fire extinguisher is positioned outward from the front part through the opening and the bottom of the fire extinguisher is positioned below the bottom of the fire extinguisher storage section through the opening.This improves the operability of the fire extinguisher, allowing even people with little strength, such as elderly people or women, to safely and easily remove the fire extinguisher, enabling rapid fire extinguishing activities using the fire extinguisher.

[0012] (Effect of the first fire extinguisher moving mechanism) The first fire extinguisher moving mechanism comprises a fire extinguisher holding section that detachably holds the bottom of the fire extinguisher when the fire extinguisher is stored and the operating lever of the fire extinguisher is raised, a fire extinguisher guide section that is connected to the front side of the fire extinguisher holding section and extends from the bottom side of the fire extinguisher toward the operating lever side when the fire extinguisher is stored, and a shaft section that is positioned at the connection between the fire extinguisher holding section and the fire extinguisher guide section and supports the upper end of the fire extinguisher guide section so that it can rotate around its axis.The fire extinguisher guide section rotates its upper end around the axis of the shaft section toward the front, and when the upper end is positioned at a predetermined position below the bottom of the fire extinguisher and above the road surface of the guard passage, it forms a ramp that guides the withdrawal of the fire extinguisher, making it possible to safely and easily withdraw the fire extinguisher from a housing installed at a high position and carry out rapid fire extinguishing activities.

[0013] (Effect of the fire extinguisher guide structure) In addition, the fire extinguisher guide portion of the first fire extinguisher moving mechanism comprises a fixed guide portion that is fixed to the shaft portion so that it can rotate freely, and a movable guide portion that can extend freely along the fixed guide portion, and the movable guide portion extends forward from the fixed guide portion as the fire extinguisher is pulled out, forming a ramp extending from the fixed guide portion.When the fire extinguisher guide portion is stored within the housing, the ramp becomes shorter, thereby making it possible to reduce the installation space.

[0014] (Effect of the structure of the fixed guide and movable guide) In addition, the fixed guide portion is a hollow member having an opening on the opposite side of the shaft portion, and the movable member is a plate member that is arranged inside the hollow interior of the fixed guide portion and protrudes from the opening portion so that it can move freely to a predetermined position in the extension direction, thereby making it possible to form a ramp that extends in conjunction with the operation of pulling out the fire extinguisher with a simple structure.

[0015] (Effect of positioning the movable guide part) In addition, the movable guide portion is equipped with a positioning member that allows the amount of movement in the extension direction to be freely changed, so that by changing the position of the positioning member, the length by which the movable guide portion protrudes and extends from the opening of the fixed guide portion can be easily changed.

[0016] (Effect of the second fire extinguisher moving mechanism) The second fire extinguisher moving mechanism includes a fire extinguisher holding portion that detachably holds the bottom of the fire extinguisher when the fire extinguisher is in a stored state and the operation lever of the fire extinguisher is in the upward position, a fire extinguisher guide portion that is disposed on the front side of the fire extinguisher holding portion and extends from the bottom side of the fire extinguisher toward the operation lever side when the fire extinguisher is in a stored state, a shaft portion that is disposed below the fire extinguisher guide portion when the fire extinguisher is in a stored state and supports the upper end of the fire extinguisher guide portion so that it can rotate around the shaft, and a fire extinguisher holding portion that holds the bottom of the fire extinguisher. and a fire extinguisher transport section that can transport the fire extinguisher from the shaft side of the fire extinguisher guide section to the opposite side.The fire extinguisher guide section rotates around the axis of the shaft section with its upper end facing forward, and when the upper end is positioned at a predetermined position below the bottom of the fire extinguisher and above the road surface of the guard passage, it extends forward to form a ramp that guides the transport of the fire extinguisher by the fire extinguisher transport section, making it possible to safely and easily pull out the fire extinguisher from a housing installed at a high position and carry out rapid fire extinguishing activities.

[0017] (Effect of the fire extinguisher guide structure) In addition, the fire extinguisher guide portion of the second fire extinguisher moving mechanism comprises a fixed guide portion that is fixed to the shaft portion so that it can rotate freely, and a movable guide portion that can extend freely along the fixed guide portion.As the fire extinguisher is pulled out, the movable guide portion extends forward from the fixed guide portion, forming a ramp extending from the fixed guide portion.When the fire extinguisher guide portion is stored within the housing, the ramp becomes shorter, thereby making it possible to reduce the installation space.

[0018] (Effect of the structure of the fixed guide and movable guide) In addition, the fixed guide part is a hollow member having an opening on the opposite side of the shaft part, and the movable guide part is a hollow member having openings on both ends, is arranged outside the fixed guide part, protrudes from the fixed guide part on the opposite side of the shaft part, and is freely movable to a predetermined position in the extension direction, making it possible to form a ramp that extends in conjunction with the fire extinguisher withdrawal operation with a simple structure.

[0019] (Structure of fire extinguisher transport unit) In addition, since the fire extinguisher transport section is supported by wheels that can roll inside the fixed guide section and the movable guide section, by pulling out the fire extinguisher, the fire extinguisher holding section can be transported from the shaft side of the fixed guide section to the tip side, which is the extension direction of the movable guide section.

[0020] (Effect of fire extinguisher transport using the fire extinguisher guide) In addition, as the fire extinguisher is pulled out, the fire extinguisher transport section detaches from the opening at the tip of the movable guide section, and then the fire extinguisher held in the fire extinguisher holding section can be transported by the rolling of the wheels, making it easy to transport a heavy fire extinguisher and enabling rapid firefighting activities even at remote fire sites. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is an explanatory diagram showing an embodiment of a fire hydrant device installed on a guard passage. [Figure 2] FIG. 10 is an explanatory diagram showing the installation height of the fire hydrant device on a stand to make the housing thinner. [Figure 3] This is an explanatory diagram showing the internal structure of the fire hydrant device from the front with the hydrant door and fire extinguisher door open. [Figure 4] FIG. 2 is an explanatory diagram showing the internal structure of the fire hydrant device from above. [Figure 5] FIG. 2 is an explanatory diagram showing a cross section of the fire hydrant device as seen from the side. [Figure 6] FIG. 10 is an explanatory diagram showing a first fire extinguisher moving mechanism provided in the fire extinguisher storage section. [Figure 7] 7 is an explanatory side view of the fire extinguisher storage unit of FIG. 6. FIG. [Figure 8] FIG. 7 is an explanatory diagram showing the fire extinguisher moving mechanism in FIG. 6. [Figure 9] 7 is an explanatory view showing the fire extinguisher holding portion of the fire extinguisher moving mechanism of FIG. 6. FIG. [Figure 10] 7 is an explanatory diagram showing a cross section of the internal structure of a fire extinguisher guide portion in the fire extinguisher moving mechanism of FIG. 6, as viewed from the side. FIG. [Figure 11]7 is an explanatory diagram showing the internal structure of a fire extinguisher guide portion in the fire extinguisher moving mechanism of FIG. 6 in cross section as viewed from above. FIG. [Figure 12] FIG. 7 is an exploded view showing the structure of the fire extinguisher moving mechanism of FIG. 6. [Figure 13] 7A to 7C are explanatory diagrams showing, in time sequence, the operation of drawing out the fire extinguisher by the fire extinguisher moving mechanism of FIG. 6. [Figure 14] 10 is an exploded assembly view showing another embodiment of a fire extinguisher guide portion in which a guide roller for a fire extinguisher is provided on a movable plate member. FIG. [Figure 15] FIG. 10 is an explanatory diagram showing a second fire extinguisher moving mechanism provided in the fire hydrant storage section. [Figure 16] 16 is an explanatory view showing the fire extinguisher moving mechanism of FIG. 15 in a rotated state. FIG. [Figure 17] 16 is an explanatory diagram showing the state in which the fire extinguisher is pulled out by the fire extinguisher moving mechanism of FIG. 15. FIG. [Figure 18] 16 is an explanatory diagram showing a cross section of the internal structure of the fire extinguisher moving mechanism of FIG. 15. FIG. [Figure 19] FIG. 16 is an exploded view showing the structure of the fire extinguisher moving mechanism of FIG. [Figure 20] 16 is an explanatory diagram showing the operation of transporting a pulled-out fire extinguisher using the fire extinguisher transport section of the fire extinguisher moving mechanism of FIG. 15. FIG. [Figure 21] 16 is an explanatory diagram showing the time series of the operation of drawing out the fire extinguisher by the fire extinguisher moving mechanism of FIG. 15. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an embodiment of a fire hydrant device having the function of a fire extinguisher storage device according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiment.

[0023] [Basic concept of the embodiment] First, the basic concept of the embodiment will be described. The embodiment generally relates to a fire hydrant device for a tunnel.

[0024] Here, the term "fire hydrant device" refers to a type of emergency tunnel equipment installed in tunnels such as expressways and motorways, and is a concept that includes fire hydrant equipment. The fire hydrant device of this embodiment is attached and fixed to a stand installed in the guard passageway in the tunnel, and is installed exposed at a high position above the guard passageway, and is composed of at least a fire extinguisher storage section, an opening, and a fire extinguisher moving mechanism.

[0025] Furthermore, the term "mounting" refers to a structure that supports an object using pillars and beams, etc., and includes concepts such as a support stand, foundation, base, seat, and base. The mounting stand of this embodiment is installed close to or against the tunnel wall on a guard passage that runs along the longitudinal direction of the curved tunnel wall. Here, "installed close to or against the tunnel wall" includes installation close to the tunnel wall, installation with a portion abutting the tunnel wall, or installation with a portion fixed to the tunnel wall.

[0026] Furthermore, the "fire extinguisher storage section" is the space in which the fire extinguisher is stored, and the "opening" is the area provided at a position corresponding to the fire extinguisher storage section on the front side of the installed fire hydrant device. Furthermore, the "fire extinguisher moving mechanism" is a mechanism that, when a user removes a fire extinguisher stored in the fire extinguisher storage section through the opening, moves the fire extinguisher by a predetermined operation so that at least a part of the fire extinguisher, for example, the top of the operating lever, is positioned outside the front side through the opening and below the bottom of the fire extinguisher storage section.

[0027] The "fire extinguisher moving mechanism" of this embodiment enables the easy and safe operation of pulling out a fire extinguisher from a fire hydrant device that is exposed and positioned at a high position, and includes a first fire extinguisher moving mechanism and a second fire extinguisher moving mechanism.

[0028] The first fire extinguisher moving mechanism has a fire extinguisher guide connected to a fire extinguisher holding part that holds the bottom of the fire extinguisher in a detachable manner, and the connecting part between the fire extinguisher holding part and the fire extinguisher guide part is supported by an axle, allowing the upper end of the fire extinguisher guide part to rotate around the axle.As the fire extinguisher is pulled out, the fire extinguisher guide part rotates its upper end forward around the axle of the axle, and when the upper end is positioned at a predetermined position below the bottom of the fire extinguisher and above the road surface of the guard passage, it forms a ramp that guides the pull-out operation of the fire extinguisher.

[0029] Here, the "fire extinguisher guide" is composed of a fixed guide that is rotatably fixed to the shaft and a movable guide that is extendable along the fixed guide, and the movable guide extends forward from the fixed guide as the fire extinguisher is pulled out, forming a ramp extending from the fixed guide. For example, the fixed guide is a hollow member that has an opening on the opposite side of the shaft, and the movable guide is a plate member that is disposed inside the hollow of the fixed guide and protrudes from the opening to move freely to a predetermined position in the extension direction.

[0030] The movable guide portion is provided with a positioning member that allows the amount of movement in the extension direction to be freely changed, and the length by which it protrudes and extends from the opening of the fixed guide portion can be adjusted.

[0031] In this way, by forming a ramp that guides the withdrawal of the fire extinguisher, even if a user withdraws a heavy fire extinguisher weighing approximately 10 kg from a fire hydrant device installed at a high position, the extinguisher can be easily and safely withdrawn along the ramp without dropping onto the road surface of the guard's passage.

[0032] The second fire extinguisher movement mechanism includes a fire extinguisher holding part that detachably holds the bottom of the fire extinguisher, a fixed guide part that is a hollow member having an opening on the opposite side of the shaft part, and a movable guide part that is a hollow member having openings on both ends and is arranged outside the fixed guide part, protruding from the fixed guide part on the opposite side of the shaft part and movable to a predetermined position in the extension direction, the movable guide part being arranged to be movable in the movement direction of the fire extinguisher along the fixed guide part, a shaft part that supports the upper end of the fire extinguisher guide part so as to be rotatable around an axis, and a fire extinguisher guide part that is arranged inside the fixed guide part and the movable guide part. The fire extinguisher guide unit is supported by rolling wheels and is configured to transport the fire extinguisher holding portion from the shaft side of the fixed guide unit toward the tip side, which is the extension direction of the movable guide unit, when the fire extinguisher is pulled out, and the fire extinguisher guide unit rotates around the axis of the shaft with its upper end facing forward, and when the upper end is positioned at a predetermined position below the bottom of the fire extinguisher and above the road surface of the guard passage, the movable guide unit extends forward from the fixed guide unit to form a ramp extending from the fixed guide unit, guiding the transport of the fire extinguisher by the fire extinguisher transport unit.

[0033] In addition, the fire extinguisher transporting section of the second fire extinguisher moving mechanism is supported by wheels that can roll inside the fixed guide section and the movable guide section, and after the fire extinguisher is pulled out, it detaches from the opening at the tip side of the movable guide section, allowing the fire extinguisher held in the fire extinguisher holding section to be transported by the rolling of the wheels.

[0034] Specific embodiments will be described below. The specific embodiments described below are directed to a "fire hydrant device in which a nozzle-equipped hose and a fire extinguisher are stored in a housing" to which the fire extinguisher storage device according to the present invention is applied, and a case will be described in which the "fire extinguisher moving mechanism" is divided into a "first fire extinguisher moving mechanism" and a "second fire extinguisher moving mechanism."

[0035] [Specific details of the embodiment] The fire hydrant device of this embodiment will be described in detail below. a. Fire hydrant equipment a1. Overview of fire hydrant equipment a2. Installation height of fire hydrant equipment a3. Thinner fire hydrant equipment a4. Internal structure of the fire hydrant device b. First fire extinguisher moving mechanism b1. Mechanism structure b2. Fire extinguisher holding part b3.Fire extinguisher information section b4.Shaft part b5. Fire extinguisher withdrawal operation b6. Deformation of the fire extinguisher guide c. Second fire extinguisher movement mechanism c1. Mechanism structure c2. Fire extinguisher holding part c3. Fire extinguisher transport section c4. Fire extinguisher information section c5.Shaft part c6. Fire extinguisher withdrawal operation d. Modifications of the present invention

[0036] [a. Fire hydrant equipment] The fire hydrant device for a tunnel according to this embodiment will now be described in more detail. Figure 1 is an explanatory diagram showing the installation of a fire hydrant device in a tunnel, with Figure 1(A) showing the installation of the fire hydrant device as seen from the cross section of the tunnel, and Figure 1(B) showing the installation of the fire hydrant device as seen toward the tunnel wall.

[0037] (a1. Overview of fire hydrant equipment) An overview of the fire hydrant device will now be given. As shown in Figure 1(B), the fire hydrant device 10 has a structure divided into a housing 11a on the fire hydrant storage side and a housing 11b on the fire extinguisher storage side, and decorative frames 13a and 13b are attached to the front of the housings 11a and 11b.

[0038] 1, the X, Y, and Z directions are perpendicular to each other. Specifically, as shown in FIG. 1(B), when looking at the front of the fire hydrant device from the front, the X direction is the left-right direction, the Y direction is the up-down direction, and the Z direction is the front-to-back direction. Furthermore, the +X side of the X direction is the right side, and the -X side is the left side. The +Y side of the Y direction is the top side, the -Y side is the bottom side, and the +Z side of the Z direction is the front side, and the -Z side is the rear side. This also applies to FIGS. 2 to 21, which show embodiments of the present invention.

[0039] The door opening of the decorative frame 13a on the fire hydrant storage section side is divided into upper and lower sections, and a forward-leaning fire hydrant door 12 that opens downward on hinges 12a is installed at the bottom of the door opening, and a maintenance door 14 that opens upward on hinges 14a is installed at the top of the door opening, and inside the fire hydrant storage section are stored hoses with nozzles and valves including a fire hydrant valve.

[0040] A fire extinguisher door 16 that opens sideways to the left on hinges 16a is provided on the left side of the door opening of decorative frame 13b attached to the fire extinguisher storage section, making it possible to store, for example, two fire extinguishers in the fire extinguisher storage section inside. A sight window 17 is provided on the upper side of fire extinguisher door 16, making it possible to check the storage status, such as whether or not a fire extinguisher is present, from the outside. Note that the position of sight window 17 is one example, and it can be provided in any position on fire extinguisher door 16 as long as it allows the storage status of the fire extinguishers to be checked.

[0041] An electrical door 18 that opens sideways to the right on a hinge 18a is provided on the right side of the door opening in the decorative frame 13b. The electrical door 18 is provided with electrical equipment such as a red indicator light 20, a transmitter 22, and an answer lamp 24, and a telephone jack is provided inside the housing of the electrical door 18.

[0042] The red indicator light 20 is always lit, allowing the installation location of the fire hydrant device 10 to be confirmed from a distance. When a fire breaks out and the transmitter 22 is pressed to turn on the push button switch, a transmission signal is sent, which is received by the disaster prevention receiving panel and a fire alarm is output. The fire hydrant device 10 receives a response signal from the disaster prevention receiving panel, causing the red indicator light 22 to flash and the response lamp 24 to light up.

[0043] (a2. Installation height of fire hydrant equipment) The height at which fire hydrants are installed inside a tunnel is explained in detail below. A road 36 is constructed in the longitudinal direction of the tunnel below the cylindrical (circular cross section) tunnel body constructed using the shield tunneling method, and a guard passage 34 is constructed at a predetermined height above the road 36 on the underside of the tunnel wall 26 along one side of the road 36.

[0044] Since it is difficult to cut out a box from the tunnel wall surface 26 when using the shield construction method to install the fire hydrant device 10, a mount 28 is installed close to or abutting the tunnel wall surface 26 above the monitor passage 34, and the housings 11a, 11b of the fire hydrant device 10 are attached and fixed onto the mount 28. Here, the height H1 of the mount 28 is set to a predetermined height within a range of, for example, 30 cm to 50 cm.

[0045] The mount 28 of this embodiment is composed of a first mount 30 and a second mount 32. As shown in Fig. 1(A), the first mount 30 has a side shape that is an inverted trapezoid with the top side longer than the bottom side, and the rear side has a slope that faces diagonally downward along the curved shape of the tunnel wall surface 26. The second mount 32 is fixed on top of the first mount 30, and is used to attach and fix the housings 11a and 11b of the fire hydrant device 10.

[0046] (a3. Thinner fire hydrant devices) The following explains in more detail how the fire hydrant device is made thinner. In order to reduce the restriction on the passage width caused by the protrusion (projection) of the fire hydrant device 10, which is installed above the guard passage 34 by the stand 28, from the tunnel wall surface 26, the installation height of the fire hydrant device 10 is optimized and, at the same time, it is made as thin as possible.

[0047] First, the optimization of the height H1 of the mounting base 28 will be explained in more detail. Fig. 2 shows a schematic diagram of the installation of a fire hydrant device in a tunnel cross section. The tunnel wall surface 26 above the guard passage 34 on which the fire hydrant device 10 is installed has a circular cross section, and in Fig. 2(A), the height H1 of the mounting base 28 is set so that the horizontal housing center line SL2 passing through the center of the height direction of the fire hydrant device 10 installed above the guard passage 34 is as close as possible to the horizontal tunnel center line SL1 from the tunnel center (center of the circular cross section) P. Note that the fire hydrant device 10 shown here has a side surface that is a vertically long rectangle.

[0048] In this case, the closer the housing center line SL2 is to the tunnel center line SL1, the more the degree to which the fire hydrant device 10 protrudes from the tunnel wall surface 26 can be reduced.

[0049] 2(B) shows a case where the height H1 of the pedestal 28 is set so that the center line SL2 of the housing coincides with the center line SL1 of the tunnel. In this case, the degree to which the fire hydrant device 10 protrudes from the tunnel wall surface 26 can be minimized.

[0050] Furthermore, the height H1 of the stand 28 is set so that the height to the lever of the fire extinguisher stored in the fire hydrant device 10 does not exceed a predetermined height at which a user standing in the monitor passage 34 can properly pull out the fire extinguisher. The predetermined height at which a user can properly pull out the fire extinguisher is, for example, a height not exceeding 1.5 m. Therefore, when the height H1 of the stand 28 is set to a height at which the housing center line SL2 coincides with or approaches the tunnel center line SL1, the height to the lever of the fire extinguisher is also set so that it does not exceed 1.5 m.

[0051] Next, the reduction in the thickness of the fire hydrant apparatus 10 will be described in more detail. To reduce the thickness of the fire hydrant apparatus 10, it is effective to shape the housing of the fire hydrant apparatus 10 so that it conforms to the tunnel wall surface 26. The shape of the housings 11a, 11b for reducing the thickness of the fire hydrant apparatus 10 is arbitrary. For example, when the height H1 of the stand 28 is set so that the housing center line SL2 coincides with the tunnel center line SL1 as shown in FIG. 2(B), the front surfaces of the housings 11a, 11b are vertical, but the portion of the back surface 15a above the tunnel center line SL1 is inclined downward and forward from the vertical to match the curved shape of the tunnel wall surface 26, and the portion of the back surface 15b below the tunnel center line SL1 is inclined upward and forward from the vertical to match the curved shape of the tunnel wall surface 26, and the housings 11a, 11b have a minimum width at each of their top and bottom.

[0052] Here, the minimum width (minimum depth) of the bottom of the housings 11a and 11b is set to a width that matches the diameter of the fire extinguisher to be stored, since it is sufficient for the fire extinguisher to be stored in housing 11b, which serves as the fire extinguisher storage section. Since the diameter of a fire extinguisher generally does not exceed 15 cm, the minimum width of the bottom of housings 11a and 11b is set to, for example, approximately 18 to 20 cm, taking into account the installation of a fire extinguisher guide. In contrast, the housing width (depth) of a known fire hydrant device installed in a box cutout on the wall of a tunnel is approximately 30 cm, so the minimum width of the bottom of the housing of this embodiment can be made approximately half that of a conventional one. The same applies to the minimum width of the top of the housing.

[0053] Although the housings 11a and 11b are made thinner, the storage volume for storing nozzle-equipped hoses, valves, electrical equipment, fire extinguishers, etc. remains unchanged. Therefore, to obtain the specified storage volume, the width W and height H2 of the housings 11a and 11b are set to be larger than those of a conventional fire hydrant apparatus installed without a box. Here, in this embodiment, the hydrant door 12, maintenance door 14, fire extinguisher door 16, and electrical equipment door 18 are the same size as those of a conventional fire hydrant apparatus installed without a box. As a result, in this embodiment, the width W remains unchanged, but the height H2 is changed to be longer than that of the conventional apparatus. Of course, both the width W and the height H2 may be increased to obtain the specified storage volume.

[0054] 1(A) and 1(B), the inside of the monitor passage 34 is a duct 40, into which a main water supply pipe 42 is laid, branch pipes 44 are drawn out for each installation location of the fire hydrant device 10, and water supply piping 48 is drawn into the inside of the housing 11a through the frame 28 via a gate valve 46 (for example, a ball valve). Also, although not shown, various cables connected to the fire hydrant device 10 are laid in the duct 40, and are drawn into the housing 11a from below through the frame 28 for each installation location of the fire hydrant device 10. This eliminates the need to secure space to the left, right, or rear of the fire hydrant device 10 for drawing in water supply piping and cables, improving the appearance.

[0055] (a4. Internal structure of fire hydrant device) The internal structure of the fire hydrant device will now be described in detail. As shown in Figures 3 to 5, the interior of the housing 11a (inside the fire hydrant door 12), which serves as the fire hydrant storage section, is divided into a valve storage section 50a and a hose storage section 50b.

[0056] A water supply pipe 48 is drawn into the valve storage section 50a from below through the stand 28 and connected to a hydrant 54. The water supply pipe 48 also branches downward, where a fire hydrant valve 56 and an automatic pressure regulating valve 58 are provided, and a hose 62 is connected to the water supply pipe 48. The hydrant valve 56 is opened and closed by a hydrant valve opening / closing lever 60. When the hydrant valve opening / closing lever 60 is opened or closed, the hydrant valve 56 is remotely opened or closed by a known wire link mechanism. When the hydrant valve opening / closing lever 60 is opened or closed, a pump start interlock switch provided on the operation box turns on and off. A pump start switch 65 for use by the fire brigade is provided to the upper right of the hydrant 54.

[0057] A hose storage frame 64 is provided in the hose storage section 50b, and a hose 62 is stored in the frame, wound clockwise inward, after being drawn in from below. A nozzle 68 is attached to the tip of the hose 62, which is drawn out through a hose guide 66, and is detachably held by a nozzle holder 70.

[0058] Here, because the height H2 of the housing 11a has been increased compared to the conventional device, the height of the hose storage frame 64 has also been increased, as shown in Fig. 3. This increases the length per turn (per winding) of the hose 62 and reduces the number of overlapping turns of the hose 62, making it possible to store a hose 62 of a predetermined length, for example, a 30 m hose 62, in an inwardly wound state even when the housing 11a is made thinner. Note that if the height of the hose storage section interferes with operation when storing the hose, the width W of the housing 11a is increased rather than the height H2.

[0059] The interior of the housing 11b (inside the fire extinguisher door 16) is the fire extinguisher storage section 52, in which two fire extinguishers 74 are stored, as shown in Fig. 3. In addition, on the front opening side of the fire extinguisher storage section 52, a first fire extinguisher moving mechanism 76A is provided corresponding to each of the two stored fire extinguishers 74. When a user opens the fire extinguisher door 16 to the left and grips the lever at the top of the fire extinguisher 74 to pull it out, the first fire extinguisher moving mechanism 76A tilts forward about its lower end as an axis and rotates to a position where it is inclined downward, forming a ramp for pulling out the fire extinguisher 74.

[0060] 1(A) and 5, the rear surfaces 15a and 15b of the housings 11a and 11b are inclined surfaces that slope diagonally upward and downward, and the depth D1 of the bottom (or the depth D1 of the upper part) is the smallest width relative to the depth D2 through which the tunnel center line SL1 passes. The depth D1 of the bottom needs only to be able to store the fire extinguisher 74, and therefore, as described above, corresponds to the diameter of the fire extinguisher 74 and is, for example, about D1=16 cm to 17 cm.

[0061] Furthermore, since the thickness of the housing 11b has been reduced, it is not possible to install a terminal box on the rear of the housing at the rear of the fire extinguisher 74 as in conventional devices, and therefore terminal boxes 72a and 72b are installed on the rear of the housing in the empty space above the fire extinguisher storage section 52 that has increased as a result of the reduction in thickness, as shown in Fig. 3. A red indicator light 20 provided on the electrical door 18 is connected to terminal box 72a, and a transmitter 22, answer lamp 24, and telephone jack 25 provided on the electrical door 18 are connected to terminal box 72b, and further, a pump start switch 65 and a pump start interlock switch provided in the valve storage section 50a are also connected.

[0062] [b. First fire extinguisher moving mechanism] An embodiment of the first fire extinguisher moving mechanism will be described in detail. Fig. 6 shows the fire extinguisher storage section 52 of the fire hydrant device as seen from the front, and Fig. 7 shows a cross-section of the fire extinguisher storage section 52 as seen from the side. Fig. 8 shows the first fire extinguisher moving mechanism in a rotated state, Fig. 9 shows the fire extinguisher holding section of the first fire extinguisher moving mechanism as seen from the side in a horizontal position, Fig. 10 shows the internal structure of the fire extinguisher guide section of the first fire extinguisher moving mechanism as seen from the side in a horizontal position, Fig. 11 shows the internal structure of the fire extinguisher guide section of the first fire extinguisher moving mechanism as seen from the top in a cross-section, and Fig. 12 shows an exploded assembly view of the structure of the fire extinguisher guide section from above.

[0063] (b1. Mechanism structure) As shown in Figures 6 and 7, two fire extinguishers 74, each equipped with a fixed lever 74a, an operating lever 74b, and a safety valve 75, are stored in the fire extinguisher storage section 52 within the housing 11b of the fire hydrant device 10 mounted and fixed on the stand 28, and each is provided with a first fire extinguisher moving mechanism 76A. The first fire extinguisher moving mechanism 76A is composed of a fire extinguisher holding section 78, a fire extinguisher guide section 80, and a shaft section 82. In this application, the fixed lever 74a and the operating lever 74b may be collectively referred to as the "fire extinguisher lever" or the "fire extinguisher operating lever."

[0064] (b2. Fire extinguisher holding part) The fire extinguisher holding portion 78 will now be described in detail. The fire extinguisher holding portion 78 detachably holds the bottom of the fire extinguisher 74, and its structure, mechanism, material, etc. are arbitrary. For example, as shown in Figures 8 and 9, a cup-shaped fire extinguisher holder 78b is attached to a rectangular base 78a, and the bottom of the fire extinguisher 74 is detachably fitted into the fire extinguisher holder 78b. The fire extinguisher holder 78b is made of any elastically deformable material, such as silicone rubber, and holds the bottom of the fire extinguisher 74 in an adsorbed state. It is also possible to form the fire extinguisher holder 78b from a material that does not elastically deform, and to loosely restrain and hold the fire extinguisher 74 using the elastic force of a spring plate or the like.

[0065] (b3. Fire extinguisher guide) The fire extinguisher guide 80 will now be described in detail. The fire extinguisher guide 80 is connected to the front side of the housing of the fire extinguisher holder 78, and is a rectangular box-shaped member that exceeds half the height of the body of the fire extinguisher 74 when viewed from the front in the initial state with the fire extinguisher lever facing upward. In this embodiment, the fire extinguisher guide 80 and the fire extinguisher holder 78 are fixed in a perpendicular state.

[0066] The fire extinguisher guide section 80 forms a ramp 86 that guides the fire extinguisher 74 when it is pulled out of the fire extinguisher storage section 52, and its structure and mechanism are arbitrary, but for example, as shown in Figure 10 (A), it is composed of a box-shaped member 88 that functions as a fixed guide section that is rotatably supported on the shaft section 82, and a movable plate member 90 that functions as a movable guide section that can be freely extended along the longitudinal direction of the box-shaped member 88.

[0067] The box-shaped member 88 may have any structure, but may be, for example, as shown in the exploded assembly view of Figure 12, comprised of a box body 88a, a lid member 88b, and an opening member 88c. The box body 88a is box-shaped with an open top and front, and its rear is fixed by a screw 104 to a connecting portion with the fire extinguisher holder 78 having the shaft hole 82a. The lid member 88b is fixed to the top of the box body 88a by a screw 110. Furthermore, the opening member 88c having a rectangular opening 92 is fixed to the front of the box body 88a by a screw 106. Note that the respective members may be fixed by welding instead of by screws, if necessary.

[0068] As shown in the cross section seen from the side in Fig. 10(A), the cross section seen from aa in Fig. 10(A) in Fig. 10(B), the cross section seen from above in Fig. 11, and the exploded assembly view in Fig. 12, the movable plate member 90 housed inside the box-shaped member 88 has a length in the depth direction (front-to-back direction) such that its tip slightly protrudes from an opening 92 of the box-shaped member 88, and a width and thickness such that it can be housed inside the box-shaped member 88, and it can move so as to extend (90a) forward from the opening 92 of the opening member 88c arranged on the opposite side of the shaft portion 82 of the box-shaped member 88. In addition, a stopper plate 94 is fixed with screws 112 to the tip of the movable plate member 90 protruding from the opening 92.

[0069] In addition, notches formed on both the left and right rear sides of the movable plate member 90 are provided with rollers 96 that roll on the inner surface of the box main body 88a and rollers 98 that roll on the inner surface of the lid member 88b, allowing the movable plate member 90 to move smoothly inside the box-shaped member 88.

[0070] 11 and 12, a positioning slit 102 is formed in the front-to-rear direction, which is the center of the left-to-right direction of the movable plate member 90, and a T-shaped positioning slide member 100a constituting the positioning portion 100 is fitted into the positioning slit 102, and a fixing member 100b is fixed to a predetermined position on the movable plate member 90 with a screw 108. As shown in the cross section of FIG. 10(A), when the positioning portion 100 moves forward together with the movable plate member 90, it abuts against the inside of the opening member 88c to stop its movement, thereby setting the amount of movement of the movable plate member 90 in the extension direction or the amount of protrusion from the opening 92. When the stopper portion 100 is fixed at the rearmost part of the positioning slit 102, the amount of protrusion of the movable plate member 90 is maximized, and when the stopper portion 100 moves to the front side of the positioning slit 102 and is fixed, the amount of protrusion of the movable plate member 90 is adjusted to be smaller.

[0071] (b4.Shaft part) The shaft 82 will be described in detail. As shown in Figures 6 and 7, the shaft 82 pivotally supports the upper end of the fire extinguisher guide part 80 so that the connection part between the fire extinguisher holding part 78 and the fire extinguisher guide part 80 is rotatable around the axis by a bearing part 84 arranged on the front edge of the opening bottom of the housing 11b.

[0072] Here, when the fire extinguisher 74 is stored in the fire extinguisher storage section 52, the initial position is such that the fire extinguisher holding section 78 is positioned horizontally and the fire extinguisher guide section 80 is positioned vertically in front of the fire extinguisher 74, as shown in Figures 7 and 8(A).

[0073] In contrast, when the fire extinguisher 74 is used, the user pulls the handle of the fire extinguisher door 16 to open it sideways to the left on the hinges 16a, and then pulls out the fire extinguisher 74 by holding the fixed lever 74a. As a result, the fire extinguisher holding portion 78 and the fire extinguisher guide portion 80 both rotate forward on the shaft portion 82, and the fire extinguisher guide portion 80, which is initially in a vertically upright position, rotates to a predetermined position where its upper end is below the bottom of the fire extinguisher 74 and above the road surface of the monitor passage 34, that is, to a position where it slopes downward and extends below the horizontal line HL, as shown in Figure 8(B).

[0074] 6 and 7, swing dampers 85 are provided between both ends of the shaft portion 82 and its bearing portion 84. The swing damper 85 is well known and, for example, is configured such that oil is filled between the external stator and the internal rotor, an orifice is provided in a protrusion of the rotor that is in sliding contact with the inner periphery of the stator, and torque is generated by restricting the flow of oil caused by the relative rotation of the stator and the rotor through the orifice. Therefore, even if the weight of the fire extinguisher 74 acts on the fire extinguisher guide portion 80 when the fire extinguisher 74 is pulled out, the fire extinguisher holding portion 78 and the fire extinguisher guide portion 80 rotate smoothly due to the torque generated by the swing damper 85.

[0075] To generate torque, a structure may be adopted in which a piston damper that advances and retreats in the axial direction is provided instead of the swing damper 85. Furthermore, in order to enable the fire extinguisher holding portion 78 and the fire extinguisher guide portion 80 to be rotated with a light force without generating torque when they are returned to their original initial positions, a structure may be adopted in which a check valve is provided that bypasses the orifice provided in the rotor protrusion of the swing damper.

[0076] (b5. Fire extinguisher pull-out operation) Next, the operation of the first fire extinguisher moving mechanism 76A to pull out the fire extinguisher 74 will be described in detail. Figures 13(A) to 13(D) show the operation of the user pulling out the fire extinguisher 74 from the fire hydrant device 10 in time sequence.

[0077] Figure 13(A) shows the normal installation state, in which the fire extinguisher 74 is stored inside the closed fire extinguisher door 16 with its bottom held by the fire extinguisher holding portion 78 of the first fire extinguisher moving mechanism 76A.

[0078] When a user wants to use the fire extinguisher 74, he or she opens the fire extinguisher door 16 to the side to open the front of the fire extinguisher storage section 52, and then grasps the fixing lever 74a by hand and pulls out the fire extinguisher 74. As the fire extinguisher 74 is pulled out, as shown in Figure 13(B), the first fire extinguisher moving mechanism 76A rotates gently forward together with the fire extinguisher 74 around the shaft 82 due to the damping action of the swing damper 85 as shown in Figures 6 and 7, and when the fire extinguisher 74 is released from the fire extinguisher holding section 78, the fire extinguisher 74 is pulled out while resting on the fire extinguisher guide section 80 as shown in Figure 13(C).

[0079] Furthermore, when the fire extinguisher guide portion 80 rotates forward under the weight of the fire extinguisher 74, and the upper end of the fire extinguisher guide portion 80 rotates to a predetermined position below the bottom of the fire extinguisher 74 and above the road surface of the monitor passage 34, that is, to a downwardly inclined position extending below the horizontal as shown in Figure 13 (D), the movable plate member 90 stored inside the fixed box-shaped member 88 that constitutes the fire extinguisher guide portion 80 moves under its own weight from the opening 92 at the tip of the box-shaped member 88 and extends forward, forming a sloped path 86 that extends diagonally downward.

[0080] In Figure 13 (D), the stopper plate 94 at the tip of the movable plate member 90 is floating above the road surface of the monitor passage 34, but the fire extinguisher guide section 80 (box-shaped member 88 and movable plate member 90) may be configured to rotate until the stopper plate 94 abuts against the road surface of the monitor passage 34.

[0081] This allows the user to easily and safely pull out the fire extinguisher 74 along the downward ramp 86 formed by the box-shaped member 88 and the movable plate member 90 of the fire extinguisher guide section 80, and it is possible to reliably prevent the pulled-out fire extinguisher 74 from falling out of the user's hand due to its weight and onto the user's feet, causing injury, or from falling directly onto the road surface of the guard passage 34 and being damaged, thereby enabling rapid fire extinguishing activities using the fire extinguisher 74.

[0082] (b6. Deformation of fire extinguisher guide part) A modified embodiment of the fire extinguisher guide portion 80 provided in the first fire extinguisher moving mechanism 76A will be described in more detail with reference to the exploded assembly view of FIG.

[0083] As shown in Fig. 14, the fire extinguisher guide section 80 of this embodiment has a plurality of guide rollers 114 arranged in a rectangular recess 115 formed in the front position on the upper surface of the movable plate member 90, but the rest of the structure is similar to that of the fire extinguisher guide section 80 of Fig. 12. In this way, by pulling out the fire extinguisher 74, the guide rollers 114 are arranged on the upper surface of the movable plate member 90 that forms a downwardly sloping ramp 86, as shown in Fig. 13(D), making it possible to easily pull out the fire extinguisher 74 along the ramp 86 with little force. Note that the upper surface of the movable plate member 90 that forms the ramp 86 is not limited to the guide rollers 114, and may be provided with any suitable low-friction resistance member or structure.

[0084] [c. Second fire extinguisher movement mechanism] An embodiment of the second fire extinguisher moving mechanism will be described in detail. Figure 15 shows a cross section of the fire extinguisher storage section 52 of the fire hydrant device as seen from the side, Figure 16 shows the second fire extinguisher moving mechanism in a rotated state, Figure 17 shows the second fire extinguisher moving mechanism in the middle of pulling out the fire extinguisher, Figure 18 shows a cross section of the second fire extinguisher moving mechanism as seen from the side, and Figure 19 shows an exploded assembly view of the structure of the second fire extinguisher moving mechanism.

[0085] (c1.mechanism structure) 15, a fire extinguisher 74 is stored in a fire extinguisher storage section 52, which is inside the housing 11b of the fire hydrant device 10 mounted and fixed on the stand 28, so that the fire extinguisher 74 can be freely drawn out by a second fire extinguisher moving mechanism 76B. The second fire extinguisher moving mechanism 76B is composed of a fire extinguisher holding section 78, a fire extinguisher guide section 120, a fire extinguisher transport section 126, and a shaft section 82.

[0086] (c2. Fire extinguisher holding part) The fire extinguisher holding portion 78 will now be described in detail. The fire extinguisher holding portion 78 detachably holds the bottom of the fire extinguisher 74, and its structure and material are arbitrary, but for example, as shown in Figures 18 and 19, a cup-shaped fire extinguisher holder 78b is attached to a box-shaped base 78a, and the bottom of the fire extinguisher 74 is detachably fitted into the fire extinguisher holder 78b. The fire extinguisher holder 78b is made of any elastically deformable material, such as silicone rubber, and holds the bottom of the fire extinguisher 74 in an adsorbed state.

[0087] (c3. Fire extinguisher transport section) A detailed description will be given of the fire extinguisher transport unit 126. The fire extinguisher transport unit 126 transports the fire extinguisher holding unit 78, and although its function and structure are arbitrary, for example, as shown in Fig. 19, it has a structure in which a wheel 128 is rotatably supported by an axle 127 on a support leg 130 provided at one end of a base 78a of the fire extinguisher holding unit 78.

[0088] (c4. Fire extinguisher guide) A detailed description will be given of the fire extinguisher guide part 120. The fire extinguisher guide part 120 forms a ramp 86 that guides the fire extinguisher 74 as it is pulled out, and although its structure and mechanism are arbitrary, for example, as shown in Figures 18 and 19, it is made up of an outer box member 122 that functions as a movable guide part and an inner box member 124 that functions as a fixed guide part.

[0089] The outer box member 122 has a hollow shape that is open in the front-to-rear direction, and has two guide slits 138 formed in the front-to-rear direction on the top surface for passing the support legs 130 of the fire extinguisher transport unit 126 through. The front end side of the guide slits 138 is open, and a rubber holder 132 is disposed on the rear end side. The support legs 130 of the wheels 128 are releasably fitted into slits 132a formed in the rubber holder 132, and as the fire extinguisher holding unit 78 moves, the fire extinguisher transport unit 126 and the outer box member 122 can move together relative to the inner box member 124, which serves as the fixed side.

[0090] The inner box member 124 has a hollow shape that opens to the front, is sized to be movable when stored inside the outer box member 122, and has an axial hole 82a formed at its rear end for inserting the axial portion 82. Two guide slits 140 are formed in the front-to-rear direction on the top surface of the inner box member 124 for passing the support legs 130 of the fire extinguisher transport unit 126. For this reason, the height of the internal space of the inner box member 124 is set to a height that allows the wheels 128 of the fire extinguisher transport unit 126 to roll.

[0091] When the inner box member 124 is stored inside the outer box member 122, the guide slits 138, 140 of both are in the same position when viewed from the fire extinguisher transport section 126, and the lower side of the support leg 130 of the fire extinguisher transport section 126 on which the wheels 128 are axially supported is located inside the inner box member 124 via the guide slits 138, 140, and the wheels 128 are supported in a freely rolling manner in the hollow section of the inner box member 124.

[0092] Sloping rubber stoppers 136 that increase in thickness toward the front are arranged on the upper and lower surfaces of the front opening end of inner box member 124. Corresponding to rubber stoppers 136 of inner box member 124, as shown in Fig. 18 , sloped rubber stoppers 134 that decrease in thickness toward the front are arranged on the inside of the rear opening end of outer box member 122.

[0093] When a user wants to use the fire extinguisher 74, he or she opens the fire extinguisher door 16 sideways to open the front of the fire extinguisher storage compartment 52, and then, as shown in Figure 16, holds the fixed lever 74a and tilts the fire extinguisher 74 forward. With this movement, the fire extinguisher guide portion 120 of the second fire extinguisher moving mechanism 76B rotates forward together with the fire extinguisher 74 around the shaft portion 82.

[0094] When the fire extinguisher 74 is pulled out, the fire extinguisher transport part 126 moves together with the fire extinguisher 74 due to the holding force of the fire extinguisher holder part 78b, and as the fire extinguisher transport part 126 moves due to the wheels 128 rolling in the hollow part of the inner box member 124, the outer box member 122 moves forward relative to the fixed inner box member 124. The outer box member 122 moves in response to the pulling out of the fire extinguisher 74 due to the holding force of the fire extinguisher holder part 78b for the fire extinguisher 74 and the fact that the support legs 130 of the fire extinguisher transport part 126 provided on the fire extinguisher holding part 78 are tightly fitted into the slits 132a of the rubber holder 132 of the outer box member 122.

[0095] When the moving outer box member 122 approaches a position where it will be released from the inner box member 124, the rubber stopper 134 of the outer box member 122 comes into contact with the rubber stopper 136 of the inner box member 124 due to the contact of the inclined surfaces, and the outer box member 122 stops. Due to this movement of the outer box member 122, as shown in Fig. 17, the outer box member 122 extends relative to the inner box member 124, and a fire extinguisher ramp 86 is formed as a downwardly inclined surface that extends from the hollow portion of the inner box member 124, in which the wheels 128 roll, to the hollow portion of the outer box member 122.

[0096] When the outer box member 122 is stopped by the contact of the rubber stoppers 134, 136 and the fire extinguisher 74 is pulled out further, the support legs 130 of the fire extinguisher transport part 126 come out of the slits 132a of the rubber holder 132, and the fire extinguisher 74 moves as the wheels 128 roll in the hollow part of the outer box member 122, and finally detaches from the outer box member 122.

[0097] Therefore, as shown in Figure 20, the fire extinguisher transport unit 126 detached from the fire extinguisher guide unit 120 functions as a cart for the fire extinguisher holding unit 78, and by the wheels 128 rolling on the road surface of the monitor passage 34, the user can easily transport the heavy fire extinguisher 74, which weighs about 10 kg, to the location of the fire, enabling rapid firefighting activities.

[0098] (c5.shaft) The shaft 82 will be described in detail. The shaft 82 rotates the fire extinguisher guide 120, and its structure and mechanism are arbitrary. For example, as shown in Figures 15 to 19, the rear end side opposite the opening of the inner box member 124 is inserted into a bearing 84 arranged on the front edge of the bottom of the opening of the housing 11b, thereby supporting the upper end of the fire extinguisher guide 120 so that it can rotate about the shaft. Furthermore, as the fire extinguisher 74 is pulled out, the shaft 82 is rotatable so that the upper end of the fire extinguisher guide 120 is lower than the bottom of the fire extinguisher 74 to a predetermined position above the road surface of the monitor passage 34, that is, as shown in Figure 17, it rotates forward from a substantially vertical position to a position that is inclined downward and extends below the horizontal line HL.

[0099] Here, as shown in Figures 6 and 7, for example, a swing damper (not shown) is provided between both ends of the shaft portion 82 and its bearing portion 84, and even if the weight of the fire extinguisher 74 acts on the fire extinguisher guide portion 120 when the fire extinguisher 74 is pulled out, the fire extinguisher holding portion 78 and the fire extinguisher guide portion 120 rotate smoothly due to the torque generated by the swing damper.

[0100] (c6. Fire extinguisher pull-out operation) The operation of pulling out the fire extinguisher 74 by the second fire extinguisher moving mechanism 76B will be described in detail. Figures 21(A) to 21(D) show the operation of the user pulling out the fire extinguisher 74 from the fire hydrant device 10 in time sequence.

[0101] In the normal installation state, as shown in Figure 21 (A), the fire extinguisher 74 is stored inside the closed fire extinguisher door 16 with its bottom held by the fire extinguisher holding portion 78 of the second fire extinguisher moving mechanism 76B.

[0102] When a user wants to use the fire extinguisher 74, they open the fire extinguisher door 16 to the side to open the front of the fire extinguisher storage compartment 52, and then grasp the locking lever 74a by hand and pull out the fire extinguisher 74. As the fire extinguisher 74 is pulled out, as shown in Figure 21(B), the fire extinguisher guide part 120 rotates gently forward together with the fire extinguisher holding part 78 that holds the fire extinguisher 74 around the shaft part 82 due to the damping action of the swing damper.

[0103] Furthermore, when the fire extinguisher guide portion 120 rotates forward under the weight of the fire extinguisher 74, and the upper end of the fire extinguisher guide portion 120 rotates to a predetermined position below the bottom of the fire extinguisher 74 and above the road surface of the monitor passage 34, that is, to a downwardly inclined position extending below the horizontal as shown in Figure 21 (C), the movable outer box member 122, which is arranged on the outside of the fixed inner box member 124 that constitutes the fire extinguisher guide portion 120, moves and extends forward, forming a diagonally downward ramp 86 that extends from the hollow portion of the inner box member 124 in which the wheels 128 of the fire extinguisher transport portion 126 roll to the hollow portion of the outer box member 122.

[0104] This allows the user to easily and safely pull out the fire extinguisher 74 along the downward slope 86 formed by the inner box member 124 and outer box member 122 of the fire extinguisher guide section 120, and it is possible to reliably prevent the pulled-out fire extinguisher 74 from falling out of the user's hand due to its own weight and onto the user's feet, causing injury, or from falling directly onto the road surface of the guard passage 34 and being damaged.

[0105] Furthermore, when the fire extinguisher 74 is pulled out, as shown in Figure 21 (D), the wheels 128 of the fire extinguisher transport unit 126 come out of the outer box member 122 and detach, allowing the user to easily move along the monitor passage 34 by pulling the fire extinguisher 74.

[0106] [d. Modifications of the present invention] Modifications of the fire hydrant device according to the present invention will be described in detail. In addition to the above-described embodiment, the fire hydrant device according to the present invention includes the following modifications.

[0107] (Fire extinguisher box) The above embodiment takes as an example a case where a fire extinguisher moving mechanism is provided in the fire extinguisher storage section of a fire hydrant device, but is not limited to this. For example, the embodiment may be directed to a fire extinguisher box that is attached and fixed on a stand installed close to or against the tunnel wall along the longitudinal guard passage of a tunnel with a structural frame that does not allow the box to be removed from the wall, and the fire extinguisher may be stored inside the housing of the fire extinguisher box, which has a fire extinguisher door that can be opened sideways, using a fire extinguisher moving mechanism similar to that shown in Figures 6 to 21.

[0108] (Wall-mounted installation) Furthermore, in the above embodiment, the fire hydrant device is attached and fixed to a stand installed on the road surface of the tunnel guard passage, but the present invention can also be applied to a structure in which the fire hydrant device is wall-mounted and fixed to a stand installed on the tunnel wall surface.

[0109] (Fire extinguisher moving mechanism) The fire extinguisher moving mechanism of this embodiment is not limited to the first fire extinguisher moving mechanism 76A and the second fire extinguisher moving mechanism 76B shown in Figures 6 to 21, and may include any appropriate structure, mechanism, or shape as long as it can extend forward to form a ramp when the fire extinguisher holding portion and the fire extinguisher guide portion both rotate forward and the fire extinguisher guide portion rotates forward from a substantially vertical position to a diagonally downward inclined position extending below the horizontal. For example, the fire extinguisher guide may be formed by multiple plate members slidably stacked in order, and when the fire extinguisher guide portion rotates from a substantially vertical position to a diagonally downward inclined position extending below the horizontal, the multiple plate members slide and extend in order to form a ramp.

[0110] (Thinner fire hydrant equipment) In the above embodiment, the rear face of the fire hydrant device is inclined to match the curved shape of the tunnel wall, but this is not limited thereto, and the front face of the fire hydrant device may also be inclined to match the curved shape of the tunnel wall. Furthermore, since the casing structure may become complicated if the rear and / or front face of the fire hydrant device is inclined, the hydrant device may have a rectangular shape as seen from the side, similar to conventional devices, without being inclined to match the curved shape of the tunnel wall.

[0111] (If the tunnel wall has a cross section other than a circular cross section) In the above embodiment, the tunnel cross-sectional shape is circular, but if the tunnel cross-section is other than circular, such as a tricentric circle, the present invention can be applied by taking the horizontal line at the position where the horizontal width of the tunnel cross-sectional shape is widest as the tunnel center line SL1 in the above explanation.

[0112] (others) Furthermore, the present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited to the numerical values ​​shown in the above embodiments. [Explanation of symbols]

[0113] 10: Fire hydrant equipment 11a, 11b: Housing 12: Fire hydrant door 13a, 13b: decorative frame 14: Maintenance door 16: Fire extinguisher door 17: Peephole 18: Electric door 20: Red indicator light 22: Transmitter 24: Answer lamp 25: Telephone Jack 26: Tunnel wall 28: Stand 30: First stand 32: Second stand 34: Guard passage 36: Road 38: Wall fixing member 40: Duct 42: Water main 44: Branch pipe 46: Gate valve 48: Water supply piping 50a: Valve storage section 50b: Hose storage section 52: Fire extinguisher storage compartment 54: Water tap 56: Fire hydrant valve 58: Automatic pressure regulating valve 60: Fire hydrant valve opening / closing lever 62: Hose 64: Hose storage frame 65: Pump start switch 66: Hose guide 68: Nozzle 70: Nozzle holder 72a, 72b: Terminal box 74: Fire extinguisher 76A: First fire extinguisher moving mechanism 76B: Second fire extinguisher moving mechanism 78: Fire extinguisher holding part 78a: Pedestal 78b: Fire extinguisher holder 80,120: Fire extinguisher information department 82: Shaft 84: Bearing part 85: Swing damper 86: Ramp 88: Box-shaped member (fixed guide part) 90: Movable plate member (movable guide part) 92,122a,124a:Aperture 94: Stopper plate 96,98: Roller 100: Positioning unit 100a: Positioning slide member 100b: Fixing member 102: Positioning slit hole 104~112: Bis 114: Guide roller 122: Outer box member (movable guide part) 124: Inner box member (fixed guide part) 126: Fire extinguisher transport department 127: Axle 128: Wheel 130: Support leg 132: Rubber holder 134,136: Rubber stopper 138,140: Guide slit

Claims

1. A fire extinguisher storage device is installed at a predetermined height above the road surface of a guard passage provided along the wall surface of a tunnel having a road, in proximity to or in contact with the tunnel wall surface, a fire extinguisher storage section in which a fire extinguisher is stored; an opening provided in a position corresponding to the fire extinguisher storage section on the front surface in an installed state; a fire extinguisher moving mechanism that forms a ramp that allows the fire extinguisher to be moved to a location outside the fire extinguisher storage device that is forward and lower than the location where the fire extinguisher is stored in the fire extinguisher storage section, by a predetermined operation when a user takes out the fire extinguisher stored in the fire extinguisher storage section through the opening; Equipped with The fire extinguisher storage device is characterized in that the fire extinguisher moving mechanism extends the ramp in conjunction with the specified operation.

2. The fire extinguisher storage device according to claim 1, The fire extinguisher moving mechanism includes: a fire extinguisher holding portion that detachably holds a bottom portion of the fire extinguisher when the operation lever of the fire extinguisher is in an upward position in a stored state of the fire extinguisher; a fire extinguisher guide portion connected to a front side of the fire extinguisher holding portion and extending from a bottom side of the fire extinguisher toward the operating lever side when the fire extinguisher is stored; a shaft portion disposed at a connection portion between the fire extinguisher holding portion and the fire extinguisher guide portion, the shaft portion supporting an upper end of the fire extinguisher guide portion so as to be rotatable about an axis; Equipped with The fire extinguisher storage device is characterized in that the upper end of the fire extinguisher guide portion rotates around the axis of the shaft portion toward the forward side, and when the upper end is positioned at a predetermined position below the bottom of the fire extinguisher and above the road surface of the monitor passage, it extends forward to form a ramp that guides the withdrawal operation of the fire extinguisher.

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