Fire hydrant device

Abstract

To efficiently rewind a fire extinguishing hose to a hose storage housing arranged in a space between a device body installed at a predetermined height above a road surface of a watchman passage and the road surface of the watchman passage in a correct hose storage state.SOLUTION: In a fire hydrant device 10, a first housing 11a and a second housing 11b (device main body) provided with predetermined devices excluding a fire-extinguishing hose 62 are installed at a predetermined height above a road surface of a watchman passage, and a third housing 11c (hose storage housing) in which the fire-extinguishing hose 62 is stored is installed in a space between the first housing 11a and the second housing 11b, and the road surface of the watchman passage 34. A wagon 80 which can be freely taken in and out with respect to an entrance 4812 in a direction of one side surface of the third housing 11c is provided with a hose storage shelf structure 86, and the fire extinguishing hose 62 is stored in the hose storage shelf structure 86.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a fire hydrant device that is installed exposed in a watchman's passageway provided along the wall of a tunnel. [Background technology]

[0002] Conventionally, fire hydrant systems have been installed as emergency tunnel equipment in tunnels such as expressways and motorways. For example, a fire hydrant system has a fire hose with a water discharge nozzle attached to the tip, valves including a fire hydrant valve, and other items stored in a fire hydrant equipment storage section inside a housing equipped with a forward-tilting fire hydrant door (forward-tilting door), and a fire extinguisher storage section inside a housing equipped with a fire extinguisher door stores, for example, two fire extinguishers. Furthermore, fire hydrant systems are generally installed along the length of the tunnel, for example, at intervals of 50 meters, embedded in the tunnel wall where a guard passage is provided, by cutting out boxes (Patent Document 1).

[0003] However, in tunnels constructed using methods such as shield tunneling, the structure of the tunnel body makes it difficult to cut out a box in the tunnel wall and embed the fire hydrant equipment in it due to the cost and labor involved, so it is required that the fire hydrant equipment be installed in an exposed state in the guard's passage.

[0004] For this reason, a wall-mounted structure has been proposed in which a stand is installed on the tunnel wall and the main body of the fire hydrant is attached and fixed to the stand, as a structure that allows the fire hydrant to be installed exposed in the guard passage without having to be boxed out of the tunnel wall.The stand for this wall-mounted structure is composed of a main support part that is fixed to the wall surface and an attitude-maintaining member that maintains the attitude of the main body of the fire hydrant (Patent Document 2).

[0005] However, installing a fire hydrant device using a wall-mounted structure has issues such as the time and effort required to attach the device to the tunnel wall, so a so-called stationary structure has been proposed in which a stand is installed on the road surface of the monitor's passage, which is easier to install, and the main body of the fire hydrant device is attached and fixed to the installed stand (Patent Document 3). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-279294 [Patent Document 2] Japanese Patent Application Publication No. 2019-000196 [Patent Document 3] Japanese Patent Publication No. 2023-096296 Summary of the Invention [Problem to be solved by the invention]

[0007] In the case of stationary fire hydrant devices, the frame for installing the device body at a predetermined height above the road surface of the guard passage is generally a formwork structure made of angle irons assembled into a box shape. Leaving the angle irons of the frame exposed has an appearance problem compared to conventional wall-mounted types, and while it is possible to hide the exposed angle irons by placing a cover made of plate members or the like around the formwork structure, there is little point in adding an additional structure just to solve the poor appearance.

[0008] In addition, although the internal space of the mount is used as piping space for pulling the water supply pipe that rises from the guard's passage into the main body of the fire hydrant device, most of the internal space of the mount still remains empty, which creates the problem of not fully utilizing the empty space that exists in the space where the mount is installed.

[0009] To solve this problem, the applicant has proposed a fire hydrant device that allows for effective use of the installation space of the fire hydrant device by placing a hose storage case for storing the fire hose in the space for installing the device main body at a specified height above the road surface of the guard passage.

[0010] Incidentally, when the hose storage housing is placed below the device main body, when firefighting activities using the fire hydrant device are completed, the water from the fire hose pulled out to the outside must be drained, and then the fire hose must be rewound into the hose storage housing for recovery work.

[0011] In this case, the front panel of the hose storage housing is released from its fixed position, and the housing is opened diagonally forward around the lower end as an axis, and the fire hose is retracted into the hose storage housing through the upper opening. However, the opening of the tilted front panel is narrow, and the tilted front panel gets in the way of the work, making the retraction of the fire hose time-consuming and labor-intensive. Furthermore, if the fire hose is not properly retracted to the same state as when it was shipped from the factory, problems may occur when the fire hose is next pulled out.

[0012] The object of the present invention is to provide a fire hydrant device that enables efficient rewinding of a fire hose from a hose storage case located in the space between the device main body, which is installed at a predetermined height above the road surface of the guard passage, and the road surface of the guard passage, and enables the hose to be rewound into the correct storage state. [Means for solving the problem]

[0013] (Fire hydrant equipment) The present invention provides a fire hydrant device that is exposed and installed on a watchman's passageway that is provided along the wall surface of a tunnel having a road, The device body, equipped with the required equipment except for the fire hose, is installed at a specified height above the road surface of the guard passageway. A hose storage case containing a fire hose is installed in the space between the device body and the road surface of the guard passageway, The hose storage housing has a hose storage body that can be freely inserted and removed toward one side of the housing side that is in the direction of passage of the guard passage, The fire hose is characterized by being housed in a hose housing.

[0014] (Hose storage unit mounted on a trolley) The hose storage body is mounted on a carriage that can be freely taken in and out from a side opening formed on one side of the hose storage housing. (Inclined passage member for side opening of hose storage housing) The hose storage housing has an inclined passage member disposed between the bottom of the side opening and the road surface of the guard passage, allowing the carriage to pass through.

[0015] (Piping storage section) The hose storage housing has a pipe storage section on the other side of the housing where a water supply pipe rising from the road surface of the guard passage and drawn into the device main body is placed.

[0016] (First hose storage structure) The hose storage body has a hose storage structure that stores a fire hose inwardly and in a drawable manner.

[0017] (Hose internal storage structure) The hose storage structure includes a hose storage shelf structure in which the upper half of a fire hose, which is wound inward so as to be stacked from the outside to the inside around a perpendicular direction to the road surface of the guard passage, is placed on each of shelf members arranged in multiple stages in the vertical direction and stored so as to be freely drawn out.

[0018] (Second hose storage structure) The hose storage body has a hose storage structure that stores the fire hose so that it can be freely pulled out by winding it in an inclined overlapping manner, in which the hose is wound in layers from the bottom upward at a predetermined angle to the bottom.

[0019] (Third hose storage structure) The hose storage body has a hose storage structure in which a fire hose is wound lengthwise in order into storage compartments divided in the depth direction and stored so as to be freely drawn out.

[0020] (Fourth hose storage structure) The hose storage body has a hose storage structure that stores a fire hose wound outward so that it can be freely pulled out.

[0021] (Storage equipment for the device body) The device main body is equipped with a fire hydrant equipment storage section that stores specified fire hydrant equipment including a water discharge nozzle, a fire hose, and a hydrant valve, a fire extinguisher storage section that stores a fire extinguisher, and an electrical equipment storage section that stores specified electrical equipment including a transmitter.

[0022] (Hose end connection structure) The fire hose is a first joint at one end of the hose for detachably connecting to a hose connecting pipe from the device main body; a second joint at the other end of the hose for detachably connecting to a water discharge nozzle detachably held within the device body; Equipped with When pulling out the hose storage unit mounted on the cart toward one side of the housing to retract the fire hose, the first joint is used to remove the hose end from the hose connection pipe, the second joint is used to remove the other end of the hose from the water discharge nozzle, and the fire hose is then retracted into the hose storage unit. After retracting, the hose storage unit is pushed into the housing to store it, and one end of the hose is then connected to the hose connection pipe using the first joint, and the other end of the hose is connected to the water discharge nozzle using the second joint. [Effects of the Invention]

[0023] (Effect of fire hydrant equipment) The present invention is a fire hydrant device that is installed exposed on a guard passage that is provided along the wall of a tunnel that has a road, wherein the device main body, which is provided with the specified equipment excluding the fire hose, is installed at a specified height above the road surface of the guard passage, and a hose storage housing that stores the fire hose is installed in the space between the device main body and the road surface of the guard passage, and the hose storage housing is provided with a hose storage body that can be freely inserted and removed toward one side of the side of the housing that is the direction of passage along the guard passage, and since the fire hose is stored in the hose storage housing, it is possible to utilize the empty space on the side of the hose storage housing that is placed on the road surface of the guard passage and provide the hose storage housing with a hose storage body that can be pulled out toward one side of the side of the housing.

[0024] Therefore, when the firefighter rewinds the drained fire hose after the firefighting operation has been completed, the hose storage body can be pulled out sideways from the hose storage case and separated, thereby completely exposing the hose storage body to the guard's passageway.This makes it possible to efficiently and simply rewind the fire hose into the exposed hose storage body without being restricted by the hose storage case.

[0025] In addition, it is possible to rewind the hose to the correct state it was in when it was shipped from the factory, and when the fire hose is subsequently pulled out, it can be pulled out smoothly without any problems such as the hose becoming out of shape or kinking.

[0026] (Effect of the hose storage unit being mounted on a trolley) Furthermore, because the hose storage unit is mounted on a cart that can be easily moved in and out through a side opening formed on one side of the hose storage housing, it can be easily moved in and out between the bottom of the hose storage housing and the road surface of the guard passage. Furthermore, the hose storage unit stores a shape-retaining hose of, for example, 30 m, and the weight of the hose storage unit and shape-retaining hose combined is heavy, for example, several tens of kilograms, but because the hose storage unit is mounted on a cart and there is only a slight difference in level between the bottom of the hose storage housing and the road surface of the guard passage, the heavy hose storage unit can be easily pushed in and stored inside the hose storage housing.

[0027] (Effect of inclined passage member on the side opening of the hose storage housing) The hose storage housing has an inclined passage member between the bottom of the side opening and the road surface of the guard passage to allow carts to pass through.Although there is a step of several centimeters between the bottom of the side opening of the hose storage housing and the road surface of the guard passage, the inclined road surface member makes it possible to move carts in and out smoothly without being affected by the step.

[0028] (Effect of piping storage section) In addition, the hose storage housing is equipped with a piping storage section on the other side of the housing where the water supply piping that rises from the road surface of the guard passage and is drawn into the device main body is placed, so that a sufficiently large storage space for the hose storage body mounted on the cart is secured within the hose storage housing, and the water supply piping for the device main body is placed without being exposed to the outside, so it does not interfere with passage through the guard passage and also improves the appearance.

[0029] (Effect of the first hose storage structure) The hose storage enclosure is provided with a hose storage structure for storing a fire hose inwardly coiled and retractable, and the hose storage structure is provided with a hose storage shelf structure for storing the upper half of the fire hose, which is inwardly coiled so as to be stacked from the outside to the inside perpendicular to the road surface of the guard passage, on each of shelf members arranged in multiple vertical stages, so that it can be stored in a retractable manner. Therefore, it is possible to store a fire hose of a predetermined length, for example, 30 m, which allows the water discharge range of an adjacent fire hydrant to overlap. Furthermore, when an attendant drains the fire hose after the hydrant is used and rewinds it into the hose storage body mounted on the cart that has been pulled out from the hose storage enclosure, the fire hose is passed through the shelf members arranged in multiple vertical stages on the tunnel wall side in order to fit in the upper half of the inwardly coiled hose, and the upper half of the inwardly coiled fire hose is supported by the shelf members, so that the fire hose can be simply and easily rewinded into the enclosure without the need for any special tools.

[0030] (Effect of the second hose storage structure) In addition, the hose storage body has a hose storage structure that stores the fire hose in an inclined overlapping manner, in which the hose is wound in layers from the bottom upward at a predetermined angle relative to the bottom, making it possible to store a fire hose of a predetermined length, for example, 30 m, that allows the water discharge range of an adjacent fire hydrant device to overlap. Furthermore, when an attendant drains the fire hose after the fire hydrant device has been used and rewinds it into the hose storage body mounted on the cart that has been pulled out from the hose storage case, the inclined overlapping winding of the fire hose makes it possible to simply and easily rewind the fire hose into the case.

[0031] (Effect of the third hose storage structure) In addition, the hose storage body has a hose storage structure that allows the fire hose to be wound vertically in order in the storage compartments divided in the depth direction and stored so that it can be freely drawn out, so it is possible to store a fire hose of a predetermined length, for example, 30 m, that allows the water discharge range of an adjacent fire hydrant device to overlap. Furthermore, when an attendant drains the fire hose after the fire hydrant device is used and rewinds it into the hose storage body mounted on the cart that has been pulled out from the hose storage case, the fire hose can be simply and easily rewound into the case by winding it vertically in order into multiple slit openings divided in the depth direction at a predetermined height of the hose storage body.

[0032] (Effect of the fourth hose storage structure) In addition, the hose storage body has a hose storage structure that stores the fire hose wound outward so that it can be freely pulled out, that is, the fire hose is stored in the hose winding section in multiple rows of overlapping reciprocating windings, so it is possible to store a fire hose of a predetermined length, for example, 30 m, that allows the water discharge range of an adjacent fire hydrant device to overlap. Furthermore, when an attendant drains the fire hose after the hydrant device is used and rewinds it back into the hose storage body mounted on the cart that has been pulled out from the hose storage housing, it is sufficient to rewind the hose back and forth in multiple rows of overlapping reciprocating windings on the hose winding section of the hose storage housing, so it is possible to simply and easily rewind the fire hose into the housing.

[0033] (Effect of storage equipment on the device itself) In addition, the device main body is provided with a fire hydrant equipment storage section that stores specified fire hydrant equipment including a water discharge nozzle, a fire hose, and a hydrant valve, a fire extinguisher storage section that stores a fire extinguisher, and an electrical equipment storage section that stores specified electrical equipment including a transmitter, so it is possible to place all equipment other than the fire hose on the device main body side and ensure a sufficiently large hose storage space in the hose storage housing.

[0034] The fire hose is equipped with a first joint at one end of the hose that is detachably connected to the hose connection pipe from the device main body, and a second joint at the other end of the hose that is detachably connected to the water discharge nozzle that is detachably held within the device main body. When the hose storage body mounted on the cart is pulled out toward one side of the side of the housing to retract the fire hose, the hose end is removed from the hose connection pipe using the first joint, the other end of the hose is removed from the water discharge nozzle using the second joint, and the fire hose is retracted into the hose storage body. After retraction, the hose storage body is pushed back into the housing to be stored, and then the one end of the hose is connected to the hose connection pipe using the first joint, and the other end of the hose is connected to the water discharge nozzle using the second joint.

[0035] Therefore, since the hose end of the fire hose stored in the hose storage body mounted on the cart can be easily attached and detached from the device main body and the water discharge nozzle, during recovery, staff can easily drain the water from the fire hose that has been pulled out to the outside by removing it from the device main body using the first and second fittings.

[0036] Furthermore, the work of rewinding the drained fire hose back into the exposed hose storage body that has been pulled out by the cart can be done simply and easily without being hindered by the connection to the main body of the device, and after rewinding the fire hose into the correct storage state and returning the cart to the hose storage housing, the fire hose can be connected to the main body of the device. [Brief explanation of the drawings]

[0037] [Figure 1]FIG. 1 is an explanatory diagram showing a fire hydrant device common to the first to fourth embodiments, as viewed from the front, installed on the road surface of a guard passage. [Figure 2] 2 is an explanatory diagram showing the housing structure of the fire hydrant device of FIG. 1 in an assembled and disassembled state. FIG. [Figure 3] FIG. 2 is an explanatory diagram showing the fire hydrant device of FIG. 1 from the left side. [Figure 4] 1 is an explanatory diagram showing a hose storage structure provided in a first embodiment of a fire hydrant device from the front with the front surfaces of a first housing and a third housing opened. FIG. [Figure 5] 5 is an explanatory view showing a state in which the dolly is pulled out from the hose storage section of FIG. 4. FIG. [Figure 6] 5 is an explanatory diagram showing a cart on which the hose storage structure of FIG. 4 is mounted. [Figure 7] FIG. 7 is an explanatory view showing the hose storage shelf structure of FIG. 6. [Figure 8] 5 is an explanatory diagram showing a cross section of the internal structure of the fire hydrant device of FIG. 4 as viewed from the right side. FIG. [Figure 9] 2 is an explanatory diagram showing the fire hydrant device of FIG. 1 from the front with the fire hydrant door open. FIG. [Figure 10] FIG. 1 is an explanatory diagram showing a cross section of the opening and closing structure of a fire hydrant door as viewed from the right side. [Figure 11] 10 is an explanatory diagram showing a hose storage structure provided in a second embodiment of the fire hydrant device from the front with the front faces of the first and third housings opened. FIG. [Figure 12] 12 is an explanatory view showing a state in which the dolly is pulled out from the hose storage section of FIG. 11. FIG. [Figure 13] 12 is an explanatory diagram showing a cross section of the internal structure of the fire hydrant device of FIG. 11 as viewed from the right side. FIG. [Figure 14] 12 is an explanatory view showing a carriage on which the hose storage structure of FIG. 11 is mounted. FIG. [Figure 15] FIG. 10 is an explanatory diagram showing a hose storage structure provided in a third embodiment of the fire hydrant device from the front with the front surfaces of the first housing and the third housing opened. [Figure 16] 16 is an explanatory view showing a state in which the dolly is pulled out from the hose storage section of FIG. 15. FIG. [Figure 17] 16 is an explanatory view showing a carriage on which the hose storage structure of FIG. 15 is mounted. FIG. [Figure 18] 16 is an explanatory perspective view of the hose storage cage arranged on the carriage of FIG. 15. FIG. [Figure 19] 1 is an explanatory diagram showing a fire hose wound into a loop shape into a slit opening of a hose storage cage. FIG. [Figure 20] FIG. 10 is an explanatory diagram showing a hose storage structure provided in a fourth embodiment of the fire hydrant device from the front with the front faces of the first and third housings opened. [Figure 21] 21 is an explanatory view showing a state in which the dolly is pulled out from the hose storage section of FIG. 20. FIG. [Figure 22] 21 is an explanatory view showing a cart on which the hose storage structure of FIG. 20 is mounted. FIG. [Figure 23] 21 is an explanatory diagram showing a cross section of the internal structure of the fire hydrant device of FIG. 20 as viewed from the right side. FIG. [Figure 24] 21 is an explanatory diagram showing a cross section of the outer wrapping of the hose around the hose wrapping portion of FIG. 20 as viewed from the right side. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0038] Hereinafter, an embodiment of a fire hydrant device according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiment.

[0039] [Basic concept of the embodiment] First, the basic concept of the embodiment will be described. The embodiment generally relates to a fire hydrant device that is installed in an exposed state on a watchman's walkway provided along the wall surface of a tunnel.

[0040] Here, a "fire hydrant device" is a type of emergency equipment installed in areas subject to fire extinguishing, such as tunnels on expressways and motorways, and is equipped with fire hydrant equipment such as fire hoses, electrical equipment such as red indicator lights and transmitters, terminal boxes, and fire extinguishers, and is a concept that includes fire hydrant facilities with fire hydrant devices installed.

[0041] In addition, the fire hydrant device of the embodiment is installed on a guard passage provided along the tunnel wall so that it is close to or abuts the tunnel wall, and includes fire hydrant devices installed in a ``wall-mounted structure'' or ``stationary structure'' in which the fire hydrant device is installed in an exposed state in the guard passage.

[0042] In addition, "installed close to or abutting the tunnel wall" includes installation close to the tunnel wall, installation with part of the device abutting the tunnel wall, or installation with part of the device fixed to the tunnel wall.

[0043] The fire hydrant device of this embodiment has a basic configuration in which the device main body, which is equipped with the specified equipment excluding the fire hose, is installed at a specified height above the road surface of the monitor's passage, and a hose storage case which stores the fire hose is installed in the space between the device main body and the road surface of the monitor's passage, and is characterized by the effective use of the space between the device main body of the fire hydrant device and the road surface of the monitor's passage as storage space for the fire hose.

[0044] Here, the "device main body" is a unit in which a fire hydrant equipment storage section in which fire hydrant equipment including a hydrant valve is stored, a fire extinguisher storage section in which a fire extinguisher is stored, and an electrical equipment storage section in which electrical equipment including a transmitter is stored are arranged.

[0045] The "hose storage housing" stores a fire hose of a predetermined length, for example, 30 meters, so that it can be pulled out freely. Therefore, by placing the hose storage housing in the space between the device main body and the road surface of the guard passage, it can be effectively used as storage space for the fire hose, eliminating the need for storage space for the fire hose on the device main body side and making it possible to reduce the size of the device main body and the entire fire hydrant device.

[0046] The hose storage housing of this embodiment is characterized by having a hose storage body that can be freely inserted and removed on one side of the housing, which is the direction of passage of the guard passage, and a fire hose is stored in the hose storage body.

[0047] This structure, which allows the hose storage body to be inserted and removed toward one side of the hose storage housing, has an empty space on the side of the hose storage housing placed on the road surface of the guard passage, and this empty space can be utilized to pull the hose storage body out toward one side of the hose storage housing.

[0048] Therefore, when the firefighter rewinds the drained fire hose after the firefighting operation has been completed, the hose storage body can be pulled out sideways from the hose storage case and separated, leaving the hose storage body completely exposed above the guard's passage.This makes it possible to efficiently and simply rewind the fire hose into the exposed hose storage body without being restricted by the hose storage case.

[0049] In addition, it is possible to rewind the hose to the correct retracted state that it was in when it was shipped out of the factory, and when the fire hose is subsequently pulled out, it can be pulled out smoothly without causing problems such as the hose becoming out of shape or kinking (bending).

[0050] The hose storage unit is mounted on a cart that can be easily moved in and out through a side opening formed on one side of the hose storage housing. Because the hose storage unit is mounted on the cart, it can be easily moved in and out between the bottom of the hose storage housing and the road surface of the guard passage. The hose storage unit stores a shape-retaining hose of a predetermined length, for example, 30 m, and the combined weight of the hose storage unit and the shape-retaining hose is heavy, for example, on the order of several tens of kilograms. However, because the hose storage unit is mounted on the cart, the heavy hose storage unit can be easily pushed into the housing.

[0051] The hose storage housing also has an inclined passage member between the bottom of the side opening and the road surface of the guard passage to allow the cart to pass through. Here, although the step between the bottom of the side opening of the hose storage housing and the road surface of the guard passage is on the order of several centimeters, the inclined passage member allows the cart to be moved in and out smoothly without being affected by the step.

[0052] In addition, the hose storage housing is equipped with a piping storage section on the other side of the housing where the water supply piping that rises from the road surface of the guard passage and is drawn into the device main body is placed, so that a sufficiently large storage space for the hose storage body mounted on the cart is secured within the hose storage housing, and the water supply piping for the device main body is placed without being exposed to the outside, so it does not interfere with passage through the guard passage and also improves the appearance.

[0053] The hose storage body mounted on the carriage is provided with any one of the first to fourth hose storage structures.

[0054] The "first hose storage structure" is a hose storage case in which a fire hose is stored inside, coiled inward, and allowed to be pulled out. It is equipped with a "hose storage shelf structure" as a structure for coiling the fire hose inward.

[0055] The "hose storage shelf structure" is a structure in which the upper half of a fire hose is wound inward so that it is stacked from the outside to the inside, perpendicular to the road surface of the guard passage, inside a hose storage body mounted on a cart, and placed on each of the shelf members arranged in multiple vertical tiers, allowing it to be freely pulled out.

[0056] Therefore, the first hose storage structure makes it possible to store a fire hose of a predetermined length, for example, 30 m, in a hose storage body mounted on a cart so that the water discharge range of the fire hydrant device can overlap with that of an adjacent fire hydrant device, and the hose can be freely pulled out.

[0057] Furthermore, after the hydrant device has been used, when the staff member drains the water from the fire hose and rewinds it into the hose storage body mounted on the trolley that has been pulled outside, the staff member inserts the fire hose into the shelves arranged in multiple stages vertically on the tunnel wall side in order to correspond to the upper half of the hose that is being rewound inward, and then rewinds the hose. This means that the upper half of the rewound fire hose is supported by the shelves, and the fire hose can be rewound simply and easily without the need for special tools or the like.

[0058] The "second hose storage structure" stores a fire hose inside a hose storage body mounted on a cart, and allows it to be freely pulled out by winding it in an inclined, overlapping manner, in which the hose is wound in layers from the bottom upward at a predetermined angle relative to the bottom.

[0059] Therefore, the second hose storage structure makes it possible to store a fire hose of a predetermined length, for example, 30 m, in a hose storage body mounted on a cart so that the water discharge range of an adjacent fire hydrant device can overlap. Also, when an attendant drains the fire hose after the fire hydrant device is used and rewinds it into the hose storage body mounted on the cart that was pulled out, the diagonal overlap winding of the fire hose makes it possible to rewind the fire hose simply and easily.

[0060] The "third hose storage structure" is a structure in which a fire hose is stored inside a hose storage body mounted on a cart, with the hose wound lengthwise in order in storage compartments divided in the depth direction, allowing it to be freely pulled out.

[0061] Therefore, the third hose storage structure makes it possible to store a fire hose of a predetermined length, for example, 30 m, in the hose storage housing so that the water discharge range of an adjacent fire hydrant device can overlap. Also, when an attendant drains the fire hose after using the fire hydrant device and rewinds it into the hose storage housing, the fire hose can be simply and easily rewound into the housing by rewinding it vertically in order through multiple slit openings that are divided in the depth direction at a predetermined height of the hose storage body.

[0062] The "fourth hose storage structure" stores a fire hose inside a hose storage housing, wound externally so that it can be pulled out freely. For example, the fire hose is wound externally around the hose winding section in multiple rows of overlapping reciprocating windings.

[0063] Therefore, the fourth hose storage structure makes it possible to freely store a fire hose of a predetermined length, for example, 30 m, which allows the water discharge ranges of adjacent fire hydrant devices to overlap. Furthermore, when an attendant drains the fire hose after the hydrant device has been used and rewinds it into the hose storage body mounted on the cart that has been pulled out, all that is required is for the hose to be rewound back and forth in multiple rows around the hose winding section, making it possible to simply and easily rewind the fire hose into the housing.

[0064] The device main body is also provided with a fire hydrant equipment storage section that stores predetermined fire hydrant equipment including a water discharge nozzle, a fire hose, and a fire hydrant valve, a fire extinguisher storage section that stores a fire extinguisher, and an electrical equipment storage section that stores predetermined electrical equipment including a transmitter. This makes it possible to arrange all equipment except for the fire hose on the device main body side, thereby ensuring a sufficiently large hose storage space in the hose storage housing.

[0065] In addition, the fire hose stored in the hose storage body mounted on the cart is equipped with a first joint at one end of the hose that is detachably connected to the hose connection pipe from the device main body, and a second joint at the other end of the hose that is detachably connected to the water discharge nozzle that is detachably held in the nozzle holding part of the device main body.When the hose storage body mounted on the cart is pulled out toward one side of the side of the housing to retract the fire hose, the hose end is removed from the hose connection pipe using the first joint, the other end of the hose is removed from the water discharge nozzle using the second joint, and the fire hose is retracted into the hose storage body, and after retraction, the hose storage body is pushed into the housing and stored, and then one end of the hose is connected to the hose connection pipe using the first joint, and the other end of the hose is connected to the water discharge nozzle using the second joint.

[0066] Therefore, since the hose end of the fire hose stored in the hose storage body mounted on the cart can be easily attached and detached from the valve storage section and water discharge nozzle of the device main body, during recovery, staff can easily drain the water by removing the fire hose that has been pulled out from the device main body using the first and second fittings.

[0067] Furthermore, the work of rewinding the drained fire hose back into the exposed hose storage body that has been pulled out by the cart can be done simply and easily without being hindered by the connection to the main body of the device, and after rewinding the fire hose into the correct storage state and returning the cart to the hose storage housing, the fire hose can be connected to the main body of the device.

[0068] The terms "provide," "place," "install," and "store" can encompass other terms that can be substituted for each term, and are concepts that can include terms that can be substituted for each term based on their meaning, such as "attach," "attach and fix," and "mount."

[0069] Specific embodiments will be described below. In the specific embodiments shown below, the fire hydrant device is a "stationary structure" that is placed exposed above the road surface of the monitor's passageway, the "device main body" is "composed of a first housing and a second housing," the "second housing" is separated into a "fire extinguisher storage section" and an "electrical equipment storage section," the "hose storage housing" is a "third housing," a "cart" is provided that can be freely taken in and out from a side opening formed on one side of the third housing, and "fire hydrant devices equipped with first to fourth hose storage structures" that are provided in the hose storage body mounted on the cart are referred to as "first to fourth embodiments of the fire hydrant device."

[0070] [Specific details of the embodiment] An embodiment of a fire hydrant device will be described below. The details will be explained separately as follows. a. Structure of the fire hydrant device common to the first to fourth embodiments b. Installation of fire hydrant equipment c. Thinner fire hydrant equipment d. Reducing the height of fire hydrant equipment e. Fire hydrant device of the first embodiment e1. Internal structure of the first housing e2. Internal structure of the second housing e3. Hose storage structure of the third housing e4. Opening and closing structure of fire hydrant door e5. Hose rewinding work f. Fire hydrant device of the second embodiment f1. Hose storage structure f2. Hose rewinding work g. Fire hydrant device of the third embodiment g1. Hose storage structure g2. Hose storage by winding it into a loop h. Fire hydrant device of the fourth embodiment h1. Hose storage structure h2. Cylindrical structure of the hose winding section h3. First hose holder h4. Second hose holder h5. Winding the fire hose outwards i. Modifications of the present invention

[0071] [a. Structure of the fire hydrant device common to the first to fourth embodiments] First, the structure of the fire hydrant device common to the first to fourth embodiments will be described with reference to Fig. 1, which shows the fire hydrant device common to the first to fourth embodiments installed on the road surface of the guard passage from the front (front side), and Fig. 2, which shows the housing structure of the fire hydrant device of Fig. 1 in an assembled and disassembled state.

[0072] 1 and 2, the X, Y, and Z directions are perpendicular to each other. Specifically, when looking at the front face of the fire hydrant device 10, 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. In addition, the +X side in the X direction is the right side and the -X side is the left side, the +Y side in the Y direction is the upper side and the -Y side is the lower side, and the +Z side in the Z direction is the front side and the -Z side is the rear side. This also applies to Figures 3 to 24, which show embodiments of the present invention.

[0073] As shown in FIG. 1, the fire hydrant device 10 is installed on a stand 32 installed on the road surface of the monitor passage 34, and the housing of the fire hydrant device 10 is divided into a first housing 11a and a second housing 11b that constitute the main body of the device, and a third housing 11c that constitutes the hose storage housing, as shown in FIG.

[0074] The inside of the first housing 11a serves as a fire hydrant storage section 40 that stores the fire hydrant equipment excluding the fire hose. The inside of the second housing 11b is divided into left and right sections by a partition wall 45, with the right section serving as an electrical equipment storage section 45a and the left section serving as a fire extinguisher storage section 45b.

[0075] The interior of the third housing 11c is divided into left and right sections by a partition wall 41 located near the right side, with the narrow area on the right side serving as a piping storage section 46 through which the water supply piping 36 that rises from the road surface of the monitor passage 34 and is connected to the valves inside the first housing 11a passes, and the wide area on the left side serving as a hose storage section 48 that stores a fire hose.

[0076] In addition, a hose withdrawal opening 42a is formed on the left side of the bottom surface (left side of the lower surface) of the first housing 11a corresponding to the fire hydrant equipment storage section 40, and a hose withdrawal opening 42b is formed on the upper surface of the third housing 11c corresponding to the hose storage section 48 arranged below the first housing 11a.

[0077] In addition, a piping hole 43a is formed on the right side of the bottom surface of the first housing 11a, and piping holes 43b and 43c corresponding to the piping hole 43a are formed on the top and bottom surfaces of the third housing 11c corresponding to the piping storage section 46 located below the first housing 11a.

[0078] In addition, a wire passage opening 44a is formed on the upper left side of the first housing 11a, and a wire passage opening 44b opposite to the wire passage opening 44a is formed on the upper right side of the second housing 11b, which is arranged to the left of the first housing 11a.

[0079] 1, a decorative frame 12a is attached to the front of the first housing 11a. A fire hydrant door 14 is disposed in the door opening of the decorative frame 12a. When the door is unlocked by operating a door opening / closing handle 1410, the fire hydrant door 14 opens downward around hinges 14a on both sides of the lower end.

[0080] The fire hydrant equipment storage section 40 inside the first housing 11a stores a water discharge nozzle connected to a fire hose, a lever for opening and closing the fire hydrant valve, fire hydrant equipment including a water supply hydrant and a pump starting device, and certain valves including a fire hydrant valve and an automatic pressure regulating valve, as described below.

[0081] A decorative frame 12b is attached to the front of the second housing 11b. An electrical door 18 that opens laterally to the right on hinges 18a is disposed in the door opening on the right side of the decorative frame 12b, and an auxiliary door 20 that opens laterally to the left on hinges 20a is disposed on the left side of the electrical door 18 to allow access to the internal terminal boxes 25a, 25b.

[0082] In this embodiment, the electrical equipment storage section 45a has been enlarged compared to the conventional case due to the placement of the auxiliary door 20, so that the terminal boxes 25a and 25b, which were previously placed on the interior rear surface of the fire extinguisher storage section, can now be placed on the interior rear surface of the auxiliary door 20.

[0083] The electrically equipped door 18 is provided with electrical equipment such as a red indicator light 22, a transmitter 24, and a response lamp 28, and a telephone jack 26 is located on the inside of the door. The red indicator light 22 is always lit, allowing the location of the fire hydrant device 10 to be confirmed from a distance. When the transmitter 24 is pressed and switched on in the event of a fire or other incident, it transmits a transmission signal, which is received by a disaster prevention receiving panel installed in an electrical room or the like and outputs a fire alarm. The fire hydrant device 10 then receives a response signal from the disaster prevention receiving panel and turns on the response lamp 28.

[0084] In addition, when the fire hydrant valve is opened by operating the fire hydrant valve opening / closing lever, a pump start signal is sent to the disaster prevention receiving panel, and the disaster prevention receiving panel, which receives the fire notification signal, sends a start signal to the fire pump equipment, and a pump start confirmation signal causes the red indicator lights of all fire hydrant devices to flash simultaneously, thereby notifying everyone in the tunnel where the fire hydrant devices are installed that the pumps have started, and also starts pressurizing the supply of fire water to the fire hoses stored in the fire hydrant devices.

[0085] A high-voltage terminal box 25a and a low-voltage terminal box 25b are arranged, for example, side by side in the vertical direction on the rear surface of the second housing 11b opposite the auxiliary door 20. The high-voltage terminal box 25a uses a built-in terminal block to connect a high-voltage cable drawn from outside the fire hydrant device 10 to the red indicator light 22. The low-voltage terminal box 25b uses a built-in terminal block to connect a low-voltage cable drawn from outside the fire hydrant device 10 to the transmitter 24, the response lamp 28, and the telephone jack 26.

[0086] Furthermore, a fire extinguisher door 16 is disposed in the door opening on the left side of decorative frame 12b attached to second housing 11b. When the lock is released by operating door opening / closing handle 1610, the door opens to the left on hinges 16a, and two fire extinguishers are stored in fire extinguisher storage section 45b inside the door. Furthermore, fire extinguisher door 16 is provided with a viewing window 17, which makes it possible to check from the outside whether a fire extinguisher is present.

[0087] The third housing 11c has a hose storage section 48 and a piping storage section 46 formed within it, and also functions as a stand for mounting and fixing the first housing 11a and the second housing 11b, which are connected and fixed in the left-right direction, against or close to the tunnel wall at a predetermined height above the road surface of the monitor passage 34.

[0088] Decorative panel 12c is attached to the front surface of pipe storage section 46 in third housing 11c, and decorative panel 12d is attached to the front surface of hose storage section 46. The side surface of third housing 11c that is the left end of hose storage section 48 is open (side opening), and with decorative panel 12d attached to the front surface, an entrance is formed in hose storage section 48 for loading and unloading a cart equipped with a hose storage structure.

[0089] When a road user operates the door opening / closing handle 1410 of the fire hydrant door 14 provided in the first housing 11a to open it, the fire hydrant door 14 rotates downward and opens, making it possible to remove the water discharge nozzle held in the first housing 11a and pull out the fire hose.

[0090] [b. Installation of fire hydrant equipment] Next, the installation of the fire hydrant device in the guard passage will be explained. In this explanation, in addition to Figures 1 and 2, Figure 3, which shows the fire hydrant device in Figure 1 from the left side, will be referenced.

[0091] As shown in Figure 3, a road 38 is constructed in the longitudinal direction of the tunnel (left and right direction in Figure 1) below the cylindrical (circular cross section) tunnel body constructed by the shield tunneling method, and a monitor's passage 34 is constructed at a predetermined height above the road 38 on the underside of the tunnel wall 35 along the road 38. The inside of the monitor's passage 34 is a duct, and a water supply main 33 and cables are laid inside it, and a water supply pipe 36 branching off from the water supply main 33 is taken out above the road surface of the monitor's passage 34. An inlet pipe 37 is connected to the water supply pipe 36, and the inlet pipe 37 passes vertically through a pipe storage section 46 (see Figure 2) of the third housing 11c and is drawn into a fire hydrant equipment storage section 40 (see Figure 2) inside the first housing 11a.

[0092] Since it is difficult to cut out a box from the tunnel wall surface 35 constructed by the shield construction method to install the fire hydrant device 10, the fire hydrant device 10 is installed by placing the third housing 11c on the platform 32 on the road surface of the monitor's passage 34 close to the tunnel wall surface 35, and then attaching and fixing the connected first housing 11a and second housing 11b onto the third housing 11c, thereby installing the first housing 11a and second housing 11b at a predetermined height above the road surface of the monitor's passage 34. In addition, the upper parts of the first housing 11a and second housing 11b are fixed to the tunnel wall surface 35 by housing support members 41 to prevent them from falling forward.

[0093] Here, the height of the third housing 11c is set so that the height from the road surface of the monitor passage 34 to all operation targets, including the transmitter 24 and water discharge nozzles arranged on the fire hydrant device 10, falls within the legally defined appropriate operation range. If the road surface of the monitor passage 34 is the standing surface of road users, as is well known, the legally defined appropriate operation range has a lower limit height H1 from the road surface of 800 mm and an upper limit height H2 of 1500 mm, and the height width Hw of the appropriate operation range is 700 mm.

[0094] In this embodiment, the height from the road surface of the monitor passage 34 to the bottom surfaces of the first housing 11a and the second housing 11b (=height of the stand 32+height of the third housing 11c) is set so that all of the operation objects arranged on the first housing 11a and the second housing 11b are within the appropriate operation range. This height can be any as long as all of the operation objects are within the appropriate operation range, but by setting it to, for example, 800 mm, the same as the lower limit height H1 of the appropriate operation range, all of the operation objects arranged on the first housing 11a and the second housing 11b will be positioned at or above the lower limit height no matter where they are located.

[0095] [c. Thinner fire hydrant equipment] Next, we will explain how to make the fire hydrant device as thin as possible. As shown in Figure 3, in order to reduce the restriction on the passage width of the monitor passage 34 caused by the protrusion (projection) of the fire hydrant device 10 installed on the road surface of the monitor passage 34 from the tunnel wall surface 35, the fire hydrant device 10 is made as thin as possible.

[0096] The reduction in thickness of the fire hydrant device 10 is optimized to match the equipment stored inside the fire hydrant device 10. In the embodiment, the fire extinguisher stored in the second housing 11b is the device with the largest size in the front-to-rear direction among the equipment stored inside the fire hydrant device 10, and the depth width (thickness in the front-to-rear direction) of the fire hydrant device 10 can be reduced to a size that can accommodate the fire extinguisher, so the depth width of the fire hydrant device 10 is set to a predetermined depth width that corresponds to the outer diameter of the fire extinguisher stored in the second housing 11b.

[0097] The fire extinguisher stored in the second housing 11b of the fire hydrant device 10 is, for example, a Type 20 fire extinguisher with a chemical amount of 6 kg and a total weight of about 10 kg. The outer diameter of the Type 20 fire extinguisher is about 160 to 180 mm. Therefore, if a gap is provided so that the stored fire extinguisher does not come into contact with the second housing 11b, the minimum depth of the fire hydrant device 10 is set to a predetermined width of, for example, 250 mm or less within a range of, for example, 200 mm to 250 mm, and the depths of the first housing 11a, the second housing 11b, and the third housing 11c are all set to a predetermined width of 250 mm or less. In contrast, the depth of a conventional fire hydrant device that is installed by cutting a box into the wall of a tunnel body and embedding it in place is 300 mm or more. Therefore, the depth of the fire hydrant device 10 of the embodiment is reduced compared to the conventional fire hydrant device, allowing the fire hydrant device 10 to be made thinner.

[0098] [d. Reducing the height of fire hydrant equipment] Next, the reduction in the height of the fire hydrant device will be described. As shown in Fig. 3, the height width (vertical width) of the first housing 11a and the second housing 11b, in which the bottom surfaces of the housings are installed at a height H1 above the road surface of the guard passage 34 by the stand 32 and the third housing 11c, is set to the minimum height width necessary to be able to store the tallest device among the devices stored in the first housing 11a and the second housing 11b. In this embodiment, since there is no need to store a fire hose in the first housing 11a, the tallest device is a fire extinguisher stored in the second housing 11b, as in the case of the above-mentioned thinning, and the height width (vertical width) of the second housing 11b is set to the minimum height width that can store the fire extinguisher.

[0099] As in the case of the aforementioned thinning, when a 20-type fire extinguisher with a 6 kg agent amount and a total weight of about 10 kg is stored in second housing 11b, the height of the 20-type fire extinguisher is about 600 mm, so if a gap is secured so that the stored fire extinguisher does not come into contact with the inner upper surface of second housing 11b, the height of second housing 11b can be set to, for example, 700 mm, and the height width of first housing 11a and second housing 11b can be set to a height equal to or less than the height width Hw (= 700 mm) of the appropriate operation range, making it possible to set the height from the road surface of monitor passage 34 to the upper surfaces of first housing 11a and second housing 11b to be equal to or less than the upper limit height H2 (= 1500 mm) of the appropriate operation range. As a result, all of the operation objects arranged in first housing 11a and second housing 11b will be positioned at a height equal to or less than the upper limit height, no matter where they are arranged.

[0100] [e. Fire hydrant device of the first embodiment] Next, a fire hydrant device according to a first embodiment will be described. In this description, reference will be made to Fig. 4, which shows the hose storage structure provided in the first embodiment of the fire hydrant device from the front with the front surfaces of the first and third housings open; Fig. 5, which shows a state in which a dolly is pulled out from the hose storage housing of Fig. 4; Fig. 6, which shows the dolly carrying the hose storage structure of Fig. 4 removed; Fig. 7, which shows the hose storage shelf structure of Fig. 6 removed; and Fig. 8, which shows a cross-section of the internal structure of the fire hydrant device of Fig. 4 as seen from the right side. Note that Fig. 6(A) shows a plan view of the hose storage shelf structure, Fig. 6(B) shows the front view, Fig. 6(C) shows the left side view, and Fig. 6(D) shows the right side view. Also, Fig. 8(A) shows a cross-section along the section line aa in Fig. 4, Fig. 8(B) shows a cross-section along the section line bb in Fig. 4, and Fig. 8(C) shows a cross-section along the section line cc in Fig. 4.

[0101] (e1. Internal structure of the first housing) First, the internal structure of the first housing 11a, which serves as the fire hydrant device storage section, will be described. The inside of the first housing 11a corresponds to a conventional fire hydrant storage section that stores a fire hydrant device, with the function of a hose storage section for storing a fire hose removed.

[0102] The inlet pipe 37, which is drawn from the pipe through hole 43a on the right bottom surface of the first housing 11a shown in Figure 2 through the third housing 11c, is connected to a branch pipe 52, and a water hydrant 50 is connected to the branch side of the branch pipe 52. A pipe 54 on the main pipe side of the branch pipe 52 is arranged along the right wall, top wall, and left wall, and a fire hydrant valve 56 and an automatic pressure regulating valve 58 are connected in sequence to the middle of the pipe 54. The drawing structure of the inlet pipe 37 into the first housing 11a is shown in detail in Figure 8(C).

[0103] A linkage box 72 is provided on the fire hydrant valve 56, and a wire connects it to an operation box 68 provided on the right side of a frame 64 arranged in a lattice pattern at the front inside the first housing 11a, and a known wire link mechanism is provided in which the rotation associated with the opening and closing operation of the fire hydrant valve opening / closing lever 70 of the operation box 68 is transmitted to the linkage box 72 via the wire, thereby opening and closing the fire hydrant valve 56.

[0104] The automatic pressure regulating valve 58 adjusts the pressure of the fire water supplied to the fire hose 62 to maintain a predetermined pressure. The pipe 54 continuing from the automatic pressure regulating valve 58 bends downward near the left side surface and is connected to the fire hose 62 stored in the third housing 11c by a hose joint 60 provided near the bottom left surface. The type and structure of the hose joint 60 are arbitrary, but for example, the fire hose 62 is detachably connected to the pipe 54 using a known Machino joint.

[0105] A hose outlet 65 is formed in a frame 64 located at the front inside the first housing 11a, and a water-discharge nozzle 66 is attached to the end of a fire hose 62 that is pulled out from the third housing 11c into the first housing 11a through the hose outlet openings 42a and 42b shown in Figure 2 by a hose joint 61. The water-discharge nozzle 66 is detachably held in a nozzle holder 67 with the fire hose 62 pulled out through the hose outlet 65. The edges of the hose outlet openings 42a and 42b shown in Figure 2 are framed using, for example, a pipe-shaped frame member to prevent wear and damage due to contact with the fire hose 62.

[0106] A pump start interlock switch 74 is provided inside the operation box 68. The pump start interlock switch 74 turns on when the fire hydrant valve opening / closing lever 70 is operated to the open position, and sends a pump start signal to the disaster prevention receiving panel to start the fire pump equipment. In addition, a pump start switch 75 is provided on the right side of the hydrant 50. When a firefighter connects a hose to the hydrant 50 to extinguish a fire, the pump start switch 75 is pressed to turn it on, and sends a pump start signal to the disaster prevention receiving panel to start the fire pump equipment.

[0107] (e2. Internal structure of the second housing) Next, the internal structure of the second housing 11b will be described.

[0108] As shown in Fig. 2, the interior of the second housing 11b is divided by a partition wall 45 into an electrical equipment storage section 45a and a fire extinguisher storage section 45b. As described above, the red indicator light 22, the transmitter 24, and the response lamp 28 are arranged in the electrical equipment door 18 provided in the door opening on the front of the electrical equipment storage section 45a, the telephone jack 26 is arranged on the back side of the electrical equipment door 18, and the terminal boxes 25a and 25b are arranged on the rear side of the housing, which is inside the auxiliary door 20, as shown in Fig. 1. Furthermore, two fire extinguishers 19 are stored in the fire extinguisher storage section 45b.

[0109] (e3. Hose storage structure of the third housing) Next, a description will be given of the hose storage structure of the third housing (hose storage housing) provided in the fire hydrant device of the first embodiment. As shown in Fig. 4, the hose storage structure provided in the first embodiment is composed of a cart 80 and a hose storage shelf structure 86.

[0110] 6, the cart 80 has a box-shaped cart body 8010 with an open front and top, and wheels 82 are arranged on the inside of two positions on the left and right sides of a bottom plate 8012 of the cart body 8010. In addition, the left side of the cart body 8010 forms a side door 8014, and a door opening / closing handle 84 is arranged on the top.

[0111] 4, the cart 80 is stored on a bottom plate 4810 of the hose storage section 48 inside the third housing 11c so as to be movable in the left-right direction on wheels 82. The left side surface (side opening) of the third housing 11c, which is the left end of the hose storage section 48, is open and forms an entrance / exit 4812 for the cart 80. When the cart main body 8010 is stored in the hose storage section 48, a side door 8014 closes the entrance / exit 4812, and with the door opening / closing handle 84 in the closed position, the side door 8014 is locked to the entrance / exit 4812. When the door opening / closing handle 84 is opened, the lock is released, and the cart 80 can be pulled out from the hose storage section 48 onto the road surface of the guard passage 34 on the left side of the third housing 11c, as shown in FIG.

[0112] Furthermore, a ramped road surface plate 85 is arranged between the bottom plate 4810 of the third housing 11c at the entrance / exit 4812 and the guard passage 34, so that the cart 80 stored in the hose storage section 48 can be smoothly taken in and out even if there is a step between the entrance / exit 4822 and the road surface of the guard passage 34. The ramped road surface plate 85 may be fixedly installed, or may be configured to be installed when the cart 80 is taken in or out.

[0113] Furthermore, because the cart 80 tilts toward the guard passage 34 when being taken in or out of the hose storage section 48, the upper end of the opening of the cart body 8010 is lowered to create a gap ΔH so that the upper end of the opening does not hit the inside of the upper surface of the hose storage section 48. Here, the gap ΔH is arbitrary, but it is a predetermined value in the range of several centimeters to 10 cm, for example, that corresponds to the difference in level between the guard passage 34 and the bottom surface 4810.

[0114] Hose storage shelf structures 86 are arranged in three separate locations on the rear side (back surface side) of the carriage body 8010. As shown in Fig. 6, the hose storage shelf structure 86 has a structure in which shelf members 88 are arranged in multiple stages at positions where the hose passes, which are the upper half of the hose wound inside, on a back plate 87 arranged vertically on the interior back surface of the carriage body 8010.

[0115] 7, the hose storage shelf structure 86 includes a shelf member 88 having a vertical plate portion fixed to a back plate 87 and an inclined plate portion bent obliquely upward and forward from the lower side of the vertical plate portion, with the inclined plate portion being at a predetermined inclination angle α with respect to the horizontal. The inclination angle α of the inclined plate portion is arbitrary, but as shown in the top shelf member 88, it is set at an angle such that when a fire hose 62 is placed on the shelf member 88, it will not easily slip out of the inclined plate portion, for example, a predetermined angle of around 10°. Note that the inclination angle α may be 0°, in which case the tip of the horizontally disposed inclined plate portion will be curved upward to prevent it from slipping out.

[0116] The shelf members 88 are arranged at intervals in the vertical direction that allow one fire hose 62 to pass through (intervals with a width corresponding to the outer diameter of the hose). As shown in FIG. 4, the number of tiers of shelf members 88 corresponds to the maximum number of turns when a 30-meter fire hose 62 is inwardly wound around the cart body 8010. In this embodiment, the number of turns is six, so six shelf members 80 are arranged in six tiers. The shelf members 88 are arranged corresponding to the upper half of the fire hose 62 that is to be inwardly wound, and no shelf member 88 is provided for the lower half of the fire hose 62 that is to be inwardly wound, so that the hose is in a free state when inwardly wound. Note that a shelf member 88 may be provided for the lower half of the fire hose 62 that is to be inwardly wound.

[0117] Therefore, when the cart 80 is stored in the hose storage section 48, as shown in Figures 8(A) and (B), the fire hose 62 connected to the piping 54 of the first housing 11a by the hose joint 60 is pulled into the third housing 11c, and the fire hose 62 is wound inward, for example clockwise, passing through the shelf members 88 arranged in multiple stages on the upper side of the hose storage shelf structure 86, which is provided in three separate locations, in order from the top, from the outside to the inside, and is thereby stored in a state in which the upper half of the fire hose 62 wound inward is supported by the shelf members 88.

[0118] The diameter of the left and right semicircular portions of the innermost circumference of the inwardly coiled fire hose 62 is set to be equal to or greater than a predetermined allowable bending diameter that prevents the shape-retaining hose from bending. The allowable bending diameter of the fire hose 62 varies depending on the manufacturer, but is, for example, about 340 mm.

[0119] Furthermore, the width (width in the left-right direction) of the truck body 8010 is, for example, about 2000 mm, and the height (width in the up-down direction) is about 800 mm, so the hose length per turn is about 5 m on average, and a 30 m fire hose 62 can be stored with about 6 turns of inward winding. Therefore, the fire hose 62 wound inward on the truck body 8010 is wound inward so as to form a single row in the front-to-back direction.

[0120] (e4. Fire hydrant door opening and closing structure) Next, the opening and closing structure of the fire hydrant door will be explained. In this explanation, reference will be made to Fig. 9, which shows the fire hydrant device of Fig. 1 from the front (front) with the hydrant door open, and Fig. 10, which shows a cross section of the door opening and closing mechanism of the fire hydrant door as seen from the right side of the fire hydrant device. Fig. 10(A) shows the state in which the fire hydrant door is closed (closed position), and Fig. 10(B) shows the state in which the fire hydrant door is opened 180° (open position).

[0121] When a road user uses the fire hydrant to perform firefighting activities, they operate the door opening / closing handle 1410 of the fire hydrant door 14 to unlock it, and as shown in Figure 9, the fire hydrant door 14 opens downward around the hinge 14a at the lower end, making it possible to operate the water discharge nozzle 66, fire hydrant valve opening / closing lever 70, water supply hydrant 50, and pump start switch 75 arranged inside the first housing 11a.

[0122] 10(A), the door opening / closing mechanism 90 of the hydrant door 14 pivotally supports the hydrant door 14 on the lower side of the door opening of the first housing 11a by a hinge 14a serving as a shaft so that the hydrant door 14 can be opened and closed freely, and further includes a damper 96 that functions as a shock absorber. One end of the damper 96, which is the cylinder side, is fixed to the frame 64 or the like inside the housing by a fixed-side shaft 98, and the other end, which is the rod side, is pivotally supported by a shaft 92 to a damper mounting part 94 provided on the inside of the lower end of the hydrant door 14.

[0123] In addition, in order to allow the fire hydrant door 14 to be smoothly rotated 180 degrees to open, the damper mounting portion 94 is tilted at a predetermined angle so that the rear side (the side inside the housing) is positioned higher than the front side when the fire hydrant door 14 is closed, and a downward force is applied by the damper 96 when the fire hydrant door 14 is opened.

[0124] When a road user pulls the door opening / closing handle 1410 toward themselves to unlock the hydrant door 14, as shown in Figure 10(B), the hydrant door 14 rotates downward by 180° around the hinge 14a and opens to a position in front of the front of the third housing 11c, and is positioned perpendicular to the road surface of the guard passage 34. Note that "perpendicular" is not limited to being strictly perpendicular to the road surface of the guard passage, but includes being approximately perpendicular to the road surface of the guard passage, and the same applies to "parallel."

[0125] (e5. Hose rewinding work) Next, we will explain the work of rewinding the fire hose after using the fire hydrant. The work of rewinding the fire hose 62 is carried out as a recovery work after a road user in a tunnel opens the fire hydrant door 14, removes the water discharge nozzle 66, and pulls out the fire hose 62 to finish firefighting activities. The hose rewinding work after the assembly of the fire hydrant device 10 is completed in the manufacturing process at the factory is also a similar work.

[0126] To rewind the hose after the fire hydrant device 10 has been used, first, as shown in FIG. 9, with the fire hydrant door 14 open, remove the fire hose 62 from the hose joint 60, and then pull the fire hose 62 out to the outside to drain the water.

[0127] Next, the cart 80, with the fire hose 62 pulled out and now empty, is unlocked by opening the door opening / closing handle 84, and is pulled out onto the road surface of the guard passage 34 through the entrance / exit 4812 of the hose storage section 48, as shown in Figure 5, and exposed to the outside.

[0128] In this state, the fire hose 62 is stored inwardly coiled counterclockwise from the outside to the inside in the hose storage shelf structure 88 of the cart body 8010. In this case, the fire hose 62 is inwardly coiled with the base side of the hose to which the male joint 6210 of the fire hose 62 is attached extended to the upper side of the cart body 8010, and the hose tip end of the fire hose to which the male joint 6212 of the inward coiling has been completed extended to the upper side of the cart body 8010.

[0129] Next, the cart 80 with the fire hose 62 wound inward is pushed into the hose storage section 48 through the entrance 4812, and the side door 8014 is locked in the closed position using the door opening / closing handle 48.

[0130] Next, male joint 6210 at the base of the hose, which is extended to the upper side of the cart body 8010, is passed through the first housing 11a and connected to the hose joint 60, and male joint 6212 at the tip of the hose is pulled into the first housing 11a and connected to the hose joint 61 of the water-discharging nozzle 66, and the water-discharging nozzle 66 is held in the nozzle holder 67, thereby completing the recovery work.

[0131] In this way, when reeling in the fire hose 62, the cart 80 equipped with the hose storage shelf structure 86 can be exposed to the road surface of the guard passage 34, and the fire hose 62 can be simply and easily reeled in and stored in the hose storage section 48 of the third housing 11c without the need for special tools or the like. In addition, because the fire hose 62 is properly reeled inward just like when it was shipped from the factory, the next time the fire hydrant device is used to extinguish a fire, the fire hose 62 can be smoothly pulled out.

[0132] [f. Fire hydrant device of second embodiment] Next, a second embodiment of the fire hydrant device will be described. In this description, reference will be made to Fig. 11, which shows the hose storage structure provided in the second embodiment of the fire hydrant device from the front with the front faces of the first and third housings open; Fig. 12, which shows the state in which the dolly is pulled out from the hose storage housing of Fig. 11; Fig. 13, which shows a cross section of the internal structure of the fire hydrant device of Fig. 11 as seen from the right side; and Fig. 14, which shows the dolly equipped with the hose storage structure of Fig. 11. Note that Fig. 13 shows a cross section taken along line dd in Fig. 11. Also, Fig. 14(A) shows a plan view of the dolly, Fig. 14(B) shows a front view, Fig. 14(C) shows a left side view, and Fig. 14(D) shows a right side view. Furthermore, the number of turns of the fire hose stored in Figs. 11 to 13 does not necessarily correspond to the number of turns described in the specification and is shown merely as an example.

[0133] The second embodiment of the fire hydrant device is characterized in that, as shown in FIG. 11, a hose storage structure is provided in a cart 80 stored in the hose storage section 48 of the third housing 11c, for storing the fire hose 62 in an inclined overlapping winding. Since the other structures are the same as those of the fire hydrant device of the first embodiment shown in FIGS. 4 to 10, a description thereof will be omitted.

[0134] (f1. Hose storage structure) A hose storage structure provided in a fire hydrant device of the second embodiment will be described. As shown in Figures 13 and 14, the cart 80 has a box-shaped cart body 8010 that is open only at the top, and an inclined plate 100 is arranged on the bottom of the cart body 8010 so that the inclination angle θ is diagonally downward toward the front. The inclined plate 100 is arranged to wind and stack the fire hose 62 on the inclined surface along the inner wall of the cart body 8010, so that the fire hose 62 is overlap-wound at an inclination angle θ with respect to the bottom of the housing (inclined overlap winding). Note that since the cart 80 tilts toward the monitor passage 34 when being taken in or out of the hose storage section 48, the upper end of the opening of the cart body 8010 is lowered so that it does not hit the inside of the upper surface of the hose storage section 48.

[0135] Here, when the fire hose 62 is overlap-wound inside the bogie body 8010, the diameter of the semicircular portions on both the left and right sides must be ensured to have a bend diameter equal to or greater than a predetermined allowable bend diameter D so that the fire hose 62 can bend on both the left and right sides without bending. However, the depth L (width in the front-to-rear direction) of the bogie body 8010 is only about 250 mm when it is thinned to a depth that allows a fire extinguisher to be stored, and although the allowable bend diameter D differs depending on the manufacturer, it must be approximately 340 mm. When the fire hose 62 is overlap-wound parallel to the bottom of the bogie body 8010 (parallel overlap winding), the depth L inside the bogie body 8010 is smaller than the allowable bend diameter D, so the fire hose 62 cannot be stored in a parallel overlap winding in a thin fire hydrant device.

[0136] Therefore, in this embodiment, an inclined plate 100 having a width in a direction corresponding to the depth width within the cart body 8010 when the fire hose 62 is wound in parallel with a plate width equal to or larger than the allowable bending diameter D of the fire hose 62 is placed at the bottom of the cart body 8010, and the fire hose 62 is wound in overlapping fashion on the inclined surface of the inclined plate 100 so as to follow the inner wall of the cart body 8010, thereby making it possible to store a fire hose 62 with a hose length of 30 m, which was also stored in conventional fire hydrant devices.

[0137] Here, when the plate width of the inclined plate 100 is the allowable bending diameter D, the inclination angle θ1 at which the inclined plate 100 is installed is: cosθ1=L / D Since the relation is as follows, θ1=cos -1 (L / D) Therefore, in order to ensure a plate width of at least the allowable bending diameter D, the inclination angle θ is set to an angle of at least θ1.

[0138] For example, if the allowable bending diameter D of the fire hose 62 is 340 mm and the depth width L of the trolley body 8010 is 250 mm, the inclination angle θ1 will be approximately 43°. Therefore, if the width of the inclined plate 100 is allowed to have a margin relative to the allowable bending diameter D, for example, the inclination angle θ will be set to approximately 45°, and the width of the inclined plate 100 when the inclination angle θ is 45° will be approximately 350 mm.

[0139] The length per turn of the fire hose 62 wound in an oblique overlap pattern on the inclined surface of the inclined plate 100 is approximately 4.4 m if the width (left-right width) of the cart body 8010 is, for example, 2000 mm, and a 30 m long fire hose 62 can be stored with approximately 6.8 turns of oblique overlap pattern winding. The width of the cart body 8010 is arbitrary as long as the cart body 8010 has a size that allows the fire hose 62 to be stored therein. For example, if the width is 1800 mm, the length per turn of the fire hose 62 wound in an oblique overlap pattern will be approximately 4.0 m, and a 30 m long fire hose 62 can be stored with approximately 7.5 turns of oblique overlap pattern winding.

[0140] 13 and 14(A)(B), inside the carriage body 8010, a plurality of support columns 102 for supporting the depth side (rear side, upper side of the inclined surface) of the fire hose 62 that is wound in an inclined overlap manner on the inclined surface of the inclined plate 100 penetrate the inclined plate 100 and stand upright from the bottom of the housing at three locations, for example, on both the left and right sides and in the center of the carriage body 8010. The support columns 102 reliably prevent the depth side of the wound fire hose 62 from slipping down along the inclined surface of the inclined plate 100 due to its own weight and collapsing, thereby maintaining the inclined overlap-wound state of the fire hose 62. The number and positions of the support columns 102 are arbitrary, and the carriage body 8010 may be configured so that the support columns 102 stand upright at two locations on both the left and right sides.

[0141] In the event of a fire breaking out inside a tunnel due to a vehicle accident or the like, a road user will unlock the fire hydrant door 14 shown in FIG. 1 by pulling the door open / close handle 1410 toward themselves. As shown in FIG. 9, the fire hydrant door 14 will rotate 180 degrees downward around the hinge 14a as an axis and open to a position in front of the third housing 11c. The fire hydrant door 14 will then remove the water discharge nozzle 66 from the nozzle holder 67, pull out the fire hose 62, push the fire hydrant valve open / close lever 70 down to the open position, and move to the location of the fire while spraying water from the water discharge nozzle 66 to extinguish and suppress the fire.

[0142] (f2. Hose rewinding work) Next, we will explain the work of rewinding the fire hose after using the fire hydrant. The work of rewinding the fire hose 62 is carried out as a recovery work after a road user in a tunnel opens the fire hydrant door 14, removes the water discharge nozzle 66, and pulls out the fire hose 62 to finish firefighting activities. The hose rewinding work after the assembly of the fire hydrant device 10 is completed in the manufacturing process at the factory is also a similar work.

[0143] After the fire hydrant device 10 has been used, the hose is first rewound as shown in FIG. With the fire hydrant door 14 open, the fire hose 62 is removed from the hose joint 60, and the fire hose 62 is pulled out to the outside to drain the water.

[0144] Next, the cart 80, with the fire hose 62 pulled out and now empty, is unlocked by opening the door opening / closing handle 84, and is pulled out onto the road surface of the guard passage 34 through the entrance / exit 4812 of the hose storage section 48, as shown in Figure 12, and exposed to the outside.

[0145] In this state, the fire hose 62 is stored in an overlapping state in an obliquely inclined state on the inclined plate 100 at the bottom inside the cart body 801. In this case, the fire hose 62 is obliquely overlap wound with the hose base side, to which the male joint 6210 of the fire hose 62 is attached, extended to the upper side of the cart body 8010, and the hose tip, to which the male joint 6212 of the fire hose is attached after the oblique overlap winding is completed, extended to the upper side of the cart body 8010.

[0146] Next, the cart 80, on which the fire hose 62 has been stored by being wound diagonally in layers, is pushed into the hose storage section 48 through the entrance 4812, and the side door 8014 is locked in the closed position using the door opening / closing handle 48.

[0147] Next, male joint 6210 at the base of the hose, which is extended to the upper side of the cart body 8010, is passed through the first housing 11a and connected to the hose joint 60, and male joint 6212 at the tip of the hose is pulled into the first housing 11a and connected to the hose joint 61 of the water-discharging nozzle 66, and the water-discharging nozzle 66 is held in the nozzle holder 67, thereby completing the recovery work.

[0148] In this way, the work of rewinding the fire hose 62 in an oblique overlap winding can be performed with the cart 80, which has a hose storage structure provided in the cart body 8010, pulled out onto the road surface of the guard passage 34 and exposed, and the fire hose 62 can be simply and easily rewound onto the cart 80 and stored in the hose storage section 48 of the third housing 11c without requiring any special tools or the like. In addition, because the fire hose 62 is correctly rewound in an oblique overlap winding in the same way as when it was shipped from the factory, the next time the fire hose 62 is used to extinguish a fire, the fire hose 62 can be smoothly pulled out.

[0149] [g. Fire hydrant device of the third embodiment] Next, a third embodiment of the fire hydrant device will be described. In this description, reference will be made to Fig. 15, which shows the hose storage structure provided in the fire hydrant device of the third embodiment from the front with the front faces of the first and third housings open, Fig. 16, which shows a state in which a dolly is pulled out from the hose storage housing of Fig. 15, Fig. 17, which shows the dolly on which the hose storage structure of Fig. 15 is mounted, and Fig. 18, which shows a perspective view of the hose storage cage mounted on the dolly of Fig. 15. Note that Fig. 17(A) shows a plan view of the dolly, Fig. 17(B) shows a front view, Fig. 17(C) shows a left side view, and Fig. 17(D) shows a right side view.

[0150] The third embodiment of the fire hydrant device is characterized in that, as shown in FIG. 15, a hose storage structure is provided on the carriage body 8010 of the carriage 80 stored in the hose storage section 48 of the third housing 11c, in which the fire hose 62 is sequentially wound in a loop shape and stored in storage compartments divided in the depth direction.Other than that, the structure is the same as that of the fire hydrant device of the first embodiment shown in FIGS. 4 to 10, and therefore description thereof will be omitted.

[0151] (g1. Hose storage structure) As shown in Figure 17, the cart 80 has a cart body 8010, and the cart body 8010 is a box member that is open upward and has a plate member that covers the front, right side, and back with respect to the bottom plate 8010 and is about half the height of the hose storage section 48 of the third housing 11c, and has a side door 8014 on the left side that is as high as the entrance / exit 4812 on the left side of the hose storage section 48.

[0152] The carriage body 8010 is provided with a hose storage cage 106 shown in Fig. 18 as an example of a hose storage structure in which a fire hose 62 is sequentially wound in a loop shape and stored in storage compartments divided in the depth direction. The hose storage cage 106 is a cage structure (cage structure) made using a non-flexible wire material, for example, a metal wire material such as steel, and is made by fixing a horizontal cage 106a, a vertical cage 106b, a bottom cage 106c, a diagonal cage 106d, and a depth cage 106e together at their cage intersections by welding or the like so as to form slit openings 108a to 108d divided into four in the depth direction at a predetermined height.

[0153] If the outer diameter of the metal wire used in the hose storage cage 106 is about 1 to 1.5 mm, the depth width occupied by the five horizontal cages 106a arranged in the depth direction will be 5 to 7.5 mm, and the depth width of the bogie body 8010 will be 250 mm, leaving the remaining depth width of 242.5 to 245 mm.Even including the plate members arranged at the front and rear, it is possible to ensure a depth opening width of about 60 mm for the slit openings 108a to 108d, which is sufficient for the outer diameter of the hose.

[0154] Furthermore, the height at which the slit openings 108a to 108d of the hose storage cage 106 placed inside the cart body 8010 are located is arbitrary, but is at least half the height of the height inside the housing. Therefore, the slit openings 108a to 108d of the hose storage cage 106 are located near the center in the height direction of one turn of the fire hose 62 that is wound along the left inner side surface, bottom surface, right inner side surface, and top surface inside the cart body 8010, so that the hose storage cage 106 supports the fire hose 62 and stores the wound-up fire hose 62 in a freely drawable manner.

[0155] In this manner, the fire hose 62 is wound in a loop shape and stored in the slit openings 108a to 108d formed in the carriage body 8010 in order.

[0156] (g2. Hose storage by winding it into a loop) Next, we will explain the hose storage work of winding the fire hose into the slit openings in a loop shape and storing it. In this explanation, we will refer to Figure 19, which shows a schematic diagram of a fire hose being wound into the slit openings of a hose storage cage in a loop shape. Figures 19(A) to (D) show the hose winding into the four slit openings from the front, and Figure 19(E) shows the hose winding into the slit openings from a plan view.

[0157] After the assembly of the fire hydrant device 10 is completed in the manufacturing process at the factory, the cart 80, with the hose storage cage 106 of the cart body 8010 empty, is pulled out sideways from the entrance / exit 4812 and exposed, as shown in FIG. 16 .

[0158] Next, the fire hose 62 is wound into the slit opening 108a located at the innermost part of the hose storage cage 106 shown in Fig. 17(A). As shown in Fig. 19(A), the fire hose 62 is wound into the cage by pulling the fire hose 62 from the base side taken out from the top of the cart body 8010 from above as the hose winding section 62a, and winding it into a loop along the vertically rotating inner circumferential surface of the housing, that is, the box-shaped inner circumferential surface of the cart body 8010, which is the left inner surface, bottom surface, and right inner surface.

[0159] Next, as shown in Figure 19(B), the fire hose 62 is moved toward the previous slit opening 108b, and similarly wound in a loop along the vertical box-shaped inner surface of the cart body 8010, and this is repeated up to the slit opening 108c shown in Figure 19(C) and the slit opening 108d shown in Figure 19(D).

[0160] When winding up the final slit opening 108d, as shown in Figure 19 (D), the fire hose 62 that has been wound up from the left inner surface to the bottom surface is pulled out upward along the right inner surface as the hose unwinding portion 62b.

[0161] After the fire hose 62 has been wound into the hose storage cage 106 of the cart body 8010, the cart 80 is pushed into the hose storage section 48 through the entrance 4812 as shown in Figure 15, and the side door 8014 is locked and held in a closed position with the door opening / closing handle 84. Next, the base end of the fire hose 62 is connected to the hose joint 60 of the first housing 11a, and the tip end of the fire hose 62 is connected to the hose joint 61 of the water-discharge nozzle 66, and the water-discharge nozzle 66 is attached to the nozzle holder 67, completing the work.

[0162] Here, if the size of the hose storage cage 106 is, for example, 800 mm in length and 2000 mm in width, when the fire hose 62 is wound into the hose storage cage 108 in a loop shape, the hose length per turn is approximately 6.5 m, so the hose length when wound into four turns through the slit openings 108a to 108d is 26 m. However, by bending the straight portion of the hose wound into the cage and increasing the hose length per turn, it becomes possible to store a 30 m long fire hose 62.

[0163] Next, we will explain how a road user uses a fire hydrant. In the event of a fire occurring due to a vehicle accident or the like in a tunnel, the road user unlocks the door opening / closing handle 1410 shown in Fig. 1 by pulling it toward them to open the fire hydrant door 14. As shown in Fig. 9, the fire hydrant door 14 rotates downward by 180° about the hinge 14a and opens to a position in front of the front of the third housing 11c, removes the water discharge nozzle 66 from the nozzle holder 67, pulls out the fire hose 62, pushes the fire hydrant valve opening / closing lever 70 down to the open position, and moves to the location of the fire while discharging water from the water discharge nozzle 66 to extinguish and suppress the fire.

[0164] After the fire hydrant device 10 has been used, the recovery work of rewinding the fire hose 62 into the hose storage cage 106 provided on the cart body 8010 of the cart 80 is the same as the winding-up work performed after the assembly of the fire hydrant device 10 is completed during the manufacturing process at the factory described above.

[0165] That is, the work of rewinding the fire hose 62 can be performed in an exposed state in which the cart 80, which has the hose storage cage 106 attached to the cart body 8010, is pulled out onto the road surface of the guard passage 34, and no special tools are required, so the fire hose 62 can be simply and easily rewound onto the cart 80 and stored in the hose storage section 48 of the third housing 11c. In addition, because the fire hose 62 is correctly rewound into a loop just like when it was shipped from the factory, the next time the fire hydrant device is used to extinguish a fire, the fire hose 62 can be smoothly pulled out.

[0166] [h. Fire hydrant device of the fourth embodiment] Next, a fourth embodiment of the fire hydrant device will be described. In this description, reference will be made to Fig. 20, which shows the hose storage structure provided in the fourth embodiment of the fire hydrant device from the front with the front faces of the first and third housings open; Fig. 21, which shows a state in which a dolly is pulled out from the hose storage section of Fig. 20; Fig. 22, which shows the dolly equipped with the hose storage structure of Fig. 20, removed; and Fig. 23, which shows a cross section of the internal structure of the fire hydrant device of Fig. 20 as seen from the right side. Fig. 22(A) shows a plan view of the dolly, Fig. 22(B) shows the front, Fig. 22(C) shows the left side, and Fig. 22(D) shows the right side. Fig. 23 also shows a cross section taken along the cutting line ee of Fig. 20.

[0167] As shown in FIG. 20, the fire hydrant device of the fourth embodiment is characterized in that a hose storage structure for storing the fire hose 62 wound outward is provided on the carriage body 8010 of the carriage 80 stored in the hose storage section 48 of the third housing 11c; the rest of the structure is the same as that of the fire hydrant device of the first embodiment shown in FIGS. 4 to 10, and therefore description thereof will be omitted.

[0168] (h1. Hose storage structure) 22, in the hose storage structure of the fourth embodiment, a cart 80 has a cart body 8010, which is a box-shaped member with open front, right side, and top. Since the cart 80 tilts toward the monitor passage 34 when being taken in or out of the hose storage section 48, the top end of the opening of the cart body 8010 is low so that it does not hit the inside of the top surface of the hose storage section 48 at this time.

[0169] A hose winding section 112 is disposed on the rear side of the cart body 8010, and the fire hose 62 is stored in an externally wound manner so that it can be freely pulled out. The fire hose 62 is wound externally around the hose winding section 112 in a reciprocating, overlapping manner in multiple rows, with the number of rows in the depth direction and the number of overlapping windings in the vertical direction being sufficient to store a 30-meter fire hose 62 that uses a shape-retaining hose. First hose retainers 114 are provided on two locations on the left and right sides of the top surface of the hose winding section 112. The first hose retainers 114 support the front side of the fire hose 62 that is externally wound around the hose winding section 112.

[0170] Second hose retaining portions 116 are provided at two locations on the left and right sides of the underside of the hose winding portion 112. The second hose retaining portions 116 are pivotally supported at their lower ends so that they can rotate freely in the vertical direction between a vertical position on the rear side and a horizontal position extending forward. Therefore, when the fire hose 62 is wound around the hose winding portion 112, the second hose retaining portions 116 are rotated to the horizontal position extending forward to position the hose winding position relative to the underside of the hose winding portion 112, and when winding is complete, they are rotated to the vertical position on the rear side as shown in the drawing to retract. Note that "vertical" does not necessarily mean strictly vertical to the object, but includes being approximately vertical to the object, and the same applies to "horizontal."

[0171] (h2. Cylindrical structure of the hose winding section) Next, the cylindrical structure of the hose winding portion will be described. In this description, reference will be made to Figure 24, which shows a cross section of the outer hose winding around the hose winding portion of Figure 20, viewed from the right side. Note that Figure 24(A) is a cross section taken along cutting line ff in Figure 22(B), showing the state before the hose is wound, Figure 24(B) shows the order of overlapping hose winding, and Figure 24(C) shows the state after overlapping hose winding is completed.

[0172] As shown in Figure 22(B), the hose winding section 112 is a horizontally long, oval cylinder that is fixed to the rear surface inside the carriage body 8010 and extends forward, and the opening surface of the cylinder is an inclined opening surface 118 that is cut out diagonally downward from the front of the upper surface toward the depth direction, as shown in Figures 22(D) and (E). Therefore, the cylinder that constitutes the hose winding section 112 has an upper surface portion 112a and parts of left and right semicircular portions 112b, but the formation of the inclined opening surface 118 means that there is no lower surface portion.

[0173] In this way, the formation of the inclined opening surface 118 results in a shape in which the underside of the cylinder does not exist, so that when the fire hose 62 wound around the hose winding section 112 (wound back and forth in multiple rows and overlapping) is pulled out, it is possible to avoid a situation in which the fire hose 62 is obstructed (caught) by the underside of the cylinder and cannot be pulled out.

[0174] Furthermore, the diameter of the semicircular portions 112b on both sides (left and right) of the hose winding portion 112 is at least the minimum curved diameter of the fire hose 62. In this embodiment, a shape-retaining hose with an outer diameter of 40 mm is used as the fire hose 62, and the minimum curved diameter is arbitrary, but may be, for example, 340 mm, and is set to 400 mm to allow for some leeway.

[0175] Furthermore, the width (left-right width) of the upper surface 112a of the hose winding portion 112 is also arbitrary, but in order to ensure a sufficiently long hose length per turn, if the width (left-right width) of the carriage body 8010 is, for example, 2000 mm, the radius of the semicircular portion 112b is, for example, 200 mm, and the gap between the semicircular portion 112b and the inner surface of the side wall is, for example, 200 mm corresponding to the number of overlapping windings of the hose, then the width of the upper surface 112a will be, for example, 1200 mm.

[0176] Therefore, when the fire hose 62 is wound externally around the hose winding section 112, the hose length per turn, expressed in layers as the number of overlapping windings, is approximately 3.6 m for the first layer, approximately 3.9 m for the second layer, and approximately 4.2 m for the third layer, assuming that the hose outer diameter is 40 mm.

[0177] Furthermore, the depth of the upper surface 112a of the hose winding section 112 is 160 mm if a fire hose with an outer diameter of 40 mm can be wound outward in four rows. Therefore, if the depth of the trolley body 8010 is, for example, 250 mm, an empty space with a depth of 90 mm is formed in front of the hose winding section 112, which serves as a hose withdrawal space.

[0178] Furthermore, the multiple rows of reciprocal overlap winding around the hose winding portion 112 may be, for example, four rows in the first layer, three rows in the second layer, and so on, as shown in Figures 24(B) and (C).

[0179] Therefore, the hose length of the four rows in the first layer is 14.4m, and the hose length of the three rows in the second layer is 11.7m, for a total of 26.1m, with 3.9m remaining until the hose length reaches 30m. The hose length of the four rows in the third layer is 16.8m, for a total of 42.9m, completing the outer wrapping of the required 30m of hose length in the first row of the third layer.

[0180] (h3. First hose holder) Next, we will explain the first hose retaining portion 114 provided on the upper surface portion 112a of the hose winding portion 112. As shown in Figure 24(A), the first hose retaining portion 114 is arranged at two predetermined positions on the left and right of the open end that forms the protruding portion of the upper surface portion 112a of the cylindrical body that constitutes the hose winding portion 112.

[0181] The structure, shape, and material of the first hose retaining portion 114 are arbitrary, but for example, it is an L-shaped plate-like member shown in Figure 24(A) and is made of a deformable, flexible material such as rubber. The first hose retaining portion 114 has a lower portion fixed to the open end of the upper surface portion 112a by the fixing portion 114b, and the standing portion 114a holds down the open side of the fire hose 62 wound outward around the upper surface portion 112a to support it so that it does not fall off. On the other hand, when the fire hose 62 is pulled out from the hose winding portion 112, it may be pressed by the fire hose 62. In this case, the first hose retaining portion 114 is deformable so as to bend outward and not interfere with the pulling out of the hose.

[0182] (h4. Second hose holder) Next, we will explain the second hose retaining portion 116 provided on the underside of the hose winding portion 112. As shown in Figure 24(A), the second hose retaining portion 116 is arranged at two predetermined positions on the left and right sides of the back surface, which is the underside of the cylindrical body that constitutes the hose winding portion 112.

[0183] The second hose retaining portion 116 may have any structure and shape, but may be, for example, a plate member of a predetermined length as shown in Figure 24(A). As shown in Figures 24(B) and (C), the lower end of the second hose retaining portion 116 is pivotally supported on the back surface of the hose winding portion 112 by a torque hinge 122. The torque hinge 122 rotates the second hose retaining portion 116 between a vertical position along the back surface of the hose winding portion 112 and a horizontal position protruding forward, and generates torque when the second hose retaining portion 116 rotates, thereby holding the second hose retaining portion 116 at any position within its rotation range.

[0184] As shown in Figure 24(B), the cylindrical body of the hose winding section 112 does not have a bottom surface due to the formation of the inclined opening surface 118. Therefore, when an attendant winds the fire hose 62 around the outside, the position of the bottom surface of the cylindrical body is not fixed, and the outer windings of the hose below the hose winding section 112 may become misaligned and uneven.

[0185] Therefore, when winding the fire hose 62 around the hose winding section 112, the staff member rotates the second hose retainer 116 to a horizontal position as shown in Figure 24 (A) and positions the hose winding position on the underside of the hose winding section 112, thereby making it possible to wind the hose around the underside of the hose winding section 112 in an aligned manner, just like the upper surface 112a.

[0186] Furthermore, after the external winding of the fire hose 62 is completed, the second hose retaining portion 116, which is in a horizontal position, becomes an obstacle when the fire hose 62 is pulled out, so as shown in Figure 24 (C), it is rotated from the horizontal position by the torque hinge 122 and placed in a retracted state in which it is held in a vertical position on the rear side.

[0187] (h5. Outer winding of fire hoses) Next, we will explain the work of winding the fire hose 62 around the hose winding section 112 arranged inside the cart body 8010 of the cart 80. The same applies to the hose rewinding work that is performed as recovery work after a road user takes out the water discharge nozzle 66, pulls out the fire hose 62, and performs firefighting activities.

[0188] After the assembly of the fire hydrant device 10 is completed in the manufacturing process at the factory, the cart 80 without the fire hose 62 wound around the hose winding portion 112 is pulled out to the side from the entrance / exit 4812 and exposed, as shown in FIG. 21.

[0189] When winding the fire hose 62 on its outside, first, as shown in Figure 24(A), the second hose holding part 116, which is pivotally supported by a torque hinge 122 on the underside of the hose winding part 112, is rotated to a horizontal position, and the underside of the hose winding on its outside is positioned.

[0190] Next, as shown in Figure 24(B), the first layer of the fire hose 62 is wound outward from the rear (back side) of the hose winding section 112 to the front in four rows, then the second layer is wound outward from the front to the rear around the outer periphery of the first layer in three rows, and further the third row is wound outward from the rear to the front around the outer periphery of the second layer in four rows, completing the winding of a fire hose of 30 meters or more.

[0191] Once the external winding of the fire hose 62 is complete, the second hose retaining portion 116, which is pivotally supported by the torque hinge 122, is rotated and held in the rear position, as shown in Figure 24(C), thereby completing the winding up of the fire hose 62.

[0192] Next, a case where a road user uses a fire hydrant will be described. In the event of a fire occurring due to a vehicle accident in a tunnel, etc., the road user unlocks the fire hydrant door 14 by pulling the door open / close handle 1410 toward themselves to open the fire hydrant door 14. As shown in Fig. 9, the fire hydrant door 14 rotates downward by 180° about the hinge 14a and opens to a position in front of the inclined front surface of the third housing 11c. The road user then removes the water discharge nozzle 66 from the nozzle holder 67, pulls out the fire hose 62, pushes the fire hydrant valve open / close lever 70 down to the open position, and moves to the location of the fire while discharging water from the water discharge nozzle 66 to extinguish and suppress the fire.

[0193] After the fire hydrant device 10 has been used, the recovery work of rewinding the fire hose 62 back into the hose storage cage 108 provided on the cart body 8010 of the cart 80 is the same as the rewinding work performed after the assembly of the fire hydrant device 10 is completed during the manufacturing process at the factory described above.

[0194] That is, the work of rewinding the fire hose 62 can be performed in an exposed state in which the cart 80, which has the hose winding section 112 attached to the cart body 8010, is pulled out onto the road surface of the guard passage 34, and no special tools are required, so the fire hose 62 can be simply and easily rewound onto the cart 80 and stored in the hose storage section 48 of the third housing 11c. In addition, because the fire hose 62 is correctly rewound in the same way as when it was shipped from the factory, the next time the fire hydrant device is used to extinguish a fire, the fire hose 62 can be smoothly pulled out.

[0195] [i. Modifications of the present invention] Modifications of the fire hydrant device according to the present invention will be described. In addition to the above-described embodiment, the fire hydrant device of the present invention includes the following modifications.

[0196] (Fire hydrant door opening and closing structure) In the above embodiment, the fire hydrant door 14 is configured to be opened by rotating downward on the hinge 14a at the lower end, but this is not limited to this. The fire hydrant door 14 may be configured to open perpendicularly (upward) to the road surface of the monitor passage 34, with the hinge at the upper end as the axis, and when the door opening / closing handle 1410 of the fire hydrant door 14 is operated to release the lock in order to open the fire hydrant door 14 that opens upward, the fire hydrant door 14 may be rotated upward and opened by a gas spring or the like.

[0197] Furthermore, other than a structure in which the hydrant door 14 opens upward, a structure in which a sub-door is provided on the hydrant door 14 may also be used. The sub-door may be arranged, for example, at an upper central position of the hydrant door 14 in correspondence with the position of the hose outlet 65 inside the first housing 11a, and may be configured to open perpendicularly (downward) with respect to the road surface of the monitor passage 34 around the lower end side as an axis, with the door opening opened by the sub-door opening on the upper end side of the hydrant door 14.

[0198] (Fire hydrant enclosure) In the above embodiment, the electrical equipment and the fire extinguisher are stored in the second housing, but the present invention is not limited to this, and the second housing may be divided into a housing that stores the electrical equipment and a housing that stores the fire extinguisher. That is, the main body of the fire hydrant device may be divided into a first housing that stores the fire hydrant device, a second housing that stores the electrical equipment, and a third housing that stores the fire extinguisher, and the first to third housings may be connected and fixed in the left-right direction, and the fourth housing has a hose storage section and a valve storage section and is attached and fixed at a predetermined height above the road surface of the monitor's passageway, forming a stationary structure.

[0199] (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]

[0200] 10: Fire hydrant equipment 11a: First cabinet 11b: Second cabinet 11c: Third enclosure (hose storage enclosure) 12a, 12b: decorative frame 12c, 12d: decorative panels 14: Fire hydrant door 1410, 1610, 84: Door opening and closing handle 16: Fire extinguisher door 17: Peephole 18: Electric door 19: Fire extinguisher 20: Auxiliary door 22: Red indicator light 24: Transmitter 26: Telephone Jack 28: Answer lamp 32: Stand 33: Water main 34: Guard passage 35: Tunnel wall 36: Water supply piping 37: Intake piping 38: Road 40: Fire hydrant equipment storage section 41,45: Bulkhead 42a, 42b: Hose outlet opening 43a, 43b, 43c: Pipe passing holes 44a, 44b: Wiring opening 45a: Electrical equipment storage section 45b: Fire extinguisher storage compartment 48: Hose storage section 4810: Bottom plate 4812: Doorway 50: Water tap 56: Fire hydrant valve 58: Automatic pressure regulating valve 60,61: Hose fittings 62: Fire hose 6210, 6212: Male fitting 64: Frame 65: Hose outlet 66: Water nozzle 67: Nozzle holder 68: Operation box 70: Fire hydrant valve opening / closing lever 72: Interlocking box 74: Pump start interlock switch 75: Pump start switch 80: Cart 8010: Cart body 8012: Bottom plate 8014: Side door 82: Wheel 85: Inclined road surface member 86: Hose storage shelf structure 87: Back plate 88: Shelf board material 90: Door opening and closing mechanism 92: Shaft 94: Damper mounting part 96: Damper 98: Fixed side shaft part 100: Inclined plate 102: Strut 106: Hose storage cage 106a: Horizontal cage 106b: Vertical cage 106c: Bottom cage 106d: Diagonal cage 106e: Depth cage 108a to 108d: slit openings 112: Hose winding section 112a: Top part 112b: Semicircular section 114: First hose holder 116: Second hose holder 118: Inclined opening surface 122: Torque hinge

Claims

1. A fire hydrant device installed exposed on a guard passageway provided along the wall of a tunnel having a road, The device body, on which the prescribed equipment except for the fire hose is installed, is installed at a prescribed height above the road surface of the guard passage, a hose storage case in which the fire hose is stored is installed in a space between the device body and the road surface of the guard passage; The hose storage case includes a hose storage body that can be freely inserted and removed toward one side of the case that is in the direction of passage of the guard passage, The fire hydrant device is characterized in that the fire hose is stored in the hose storage body.

2. The fire hydrant device according to claim 1, The fire hydrant device is characterized in that the hose storage body is mounted on a cart that can be freely taken in and out from a side opening formed on one side of the hose storage housing.

3. The fire hydrant device according to claim 2, The fire hydrant device is characterized in that the hose storage housing has an inclined passage member arranged between the bottom of the side opening and the road surface of the monitor passage to allow the cart to pass through.

4. The fire hydrant device according to claim 2, The fire hydrant device is characterized in that the hose storage housing is provided with a piping storage section on the other side of the housing, in which a water supply pipe is arranged that rises from the road surface of the monitor passage and is drawn into the device main body.

5. The fire hydrant device according to claim 2, The fire hydrant device is characterized in that the hose storage body has a hose storage structure that stores the fire hose inward and allows it to be freely pulled out.

6. The fire hydrant device according to claim 5, The hose storage structure is a fire hydrant device characterized in that it includes a hose storage shelf structure in which the upper half of the fire hose, which is wound inward so as to be stacked from the outside to the inside around a perpendicular direction to the road surface of the guard passage, is placed on each of shelf members arranged in multiple stages vertically and stored so as to be freely pulled out.

7. The fire hydrant device according to claim 2, The hose storage body is provided with a hose storage structure that stores the fire hose in an inclined overlapping manner, in which the fire hose is wound in layers from the bottom upward at an angle inclined to the bottom at a predetermined angle, allowing the hose to be freely pulled out.

8. The fire hydrant device according to claim 2, The hose storage body is characterized in that it has a hose storage structure in which the fire hose is wound vertically in storage compartments divided in the depth direction and stored so that it can be freely pulled out.

9. The fire hydrant device according to claim 2, The fire hydrant device is characterized in that the hose storage body has a hose storage structure that stores the fire hose in an outer coil so that it can be freely pulled out.

10. The fire hydrant device according to claim 2, The device body is characterized in that it includes a fire hydrant device storage section in which specified fire hydrant devices including a water discharge nozzle, a fire hose, and a hydrant valve are stored, a fire extinguisher storage section in which a fire extinguisher is stored, and an electrical equipment storage section in which specified electrical equipment including a transmitter is stored.

11. The fire hydrant device according to claim 10, The fire hose is a first joint at one end of the hose for detachably connecting to a hose connecting pipe extending from the device main body; a second joint that is detachably connected to the other end of the hose and to a water-discharging nozzle that is detachably held within the device body; Equipped with In the operation of pulling out the hose storage body mounted on the cart toward one side of the housing to retract the fire hose, one end of the hose is detached from the hose connecting pipe by the first joint, the other end of the hose is detached from the water-discharge nozzle by the second joint, and the fire hose is retracted into the hose storage body, and after the retraction, the hose storage body is pushed into the housing to be stored, and then the one end of the hose is connected to the hose connecting pipe by the first joint, and the other end of the hose is connected to the water-discharge nozzle by the second joint.

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