Fire hydrant device

Abstract

To provide a fire hydrant device being a facility installed at least on an inspection path which can be made thinner than conventional fire hydrant devices, and allows the inspection path to be secured more widely in comparison to the conventional fire hydrant devices.SOLUTION: A fire hydrant device 1 installed in a tunnel T comprises a fire hose 2 provided with a fire nozzle 20 at its tip, a nozzle housing section 3 that houses the fire nozzle 20, and a hose housing section 4 that houses the fire hose 2. The nozzle housing section 3 and the hose housing section 4 are provided as separate bodies. The nozzle housing section 3 has a casing portion 30 and is provided so as to have an opening at the bottom surface of the casing portion 30 and to be located on an inspection path T1 on a wall surface T2 side of the tunnel T. The hose housing section 4 has a hose outlet at its ceiling portion, and the fire hose 2 is routed from the hose housing section 4 through the hose outlet, into the casing portion 30 via the opening and extends to the fire nozzle 20.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fire hydrant device. [Background technology]

[0002] Conventionally, there are fire hydrant devices installed in tunnels. Such fire hydrant devices have been installed by embedding them in spaces created by cutting out a box from the tunnel wall, but in recent years, tunnels have come to be excavated using the shield method, and in this case, the inner wall of the tunnel is constructed from segments at the same time as the excavation, making it difficult to secure the installation space for the fire hydrant device by cutting out a box from the tunnel wall.

[0003] Therefore, in tunnels excavated using the shield tunneling method, fire hydrant devices are not embedded in the tunnel walls, but are installed in open spaces within the tunnel, such as on inspection roads (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2017-56020 A Summary of the Invention [Problem to be solved by the invention]

[0005] Tunnel inspection routes are relatively narrow passages to begin with, and the installation of fire hydrant and other equipment on the inspection route makes the route even narrower. Therefore, it is desirable for fire hydrant and other equipment installed on the inspection route to be as thin as possible.

[0006] On the other hand, conventional fire hydrant devices have a housing installed on the inspection path. Since the fire hose is stored in the housing, a volume capable of storing the fire hose must be secured within the housing, so there is a natural limit to how thin the fire hydrant device can be.

[0007] Therefore, the present invention aims to provide a fire hydrant device that enables the equipment installed at least on the inspection path to be made thinner than conventional fire hydrant devices, and that can ensure a wider inspection path compared to conventional fire hydrant devices. [Means for solving the problem]

[0008] The present invention is a fire hydrant device to be installed in a tunnel, comprising: a fire hose having a fire nozzle at its tip; a nozzle accommodating section in which the fire nozzle is accommodated; and a hose accommodating section in which the fire hose is accommodated, the nozzle accommodating section and the hose accommodating section being provided as separate bodies, the nozzle accommodating section having a housing section with an opening on its bottom surface and being provided so as to be positioned on an inspection path on the wall surface side of the tunnel, the hose accommodating section having a hose outlet in its ceiling portion, and the fire hose extending from the hose outlet to the outside of the hose accommodating section, entering the housing section from the opening, and extending to the fire nozzle.

[0009] In the present invention, the hose housing can be attached to the wall of the tunnel. Also, in the present invention, the nozzle housing can be located above the hose housing.

[0010] In the present invention, the up-down direction of the fire hydrant device is determined when the fire hydrant device is installed. In addition, in the present invention, the term "separate body" includes a case in which the nozzle housing and the hose housing are connected with a gap therebetween by a separate member. Effect of the Invention

[0011] The present invention provides a nozzle accommodating section and a hose accommodating section, and since the nozzle accommodating section and the hose accommodating section are separate, it is possible to make at least the equipment installed on the inspection path thinner than conventional fire hydrant devices, and it is possible to ensure a wider inspection path compared to conventional fire hydrant devices. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a front view of an embodiment of the present invention. [Diagram 2] FIG. 2 is a right side view of the embodiment of the present invention. [Diagram 3] FIG. 4 is a bottom view of the nozzle housing portion in the embodiment of the present invention. [Figure 4] FIG. 4 is a plan view of a hose housing in the embodiment of the present invention. [Diagram 5] FIG. 3 is a diagram showing a modified example of the embodiment of the present invention, and corresponds to the VV cross-sectional view of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] An embodiment of the present invention will be described with reference to Figures 1 to 4. A fire hydrant device 1 is installed, for example, on an inspection path (also called a supervisor's passage) T1 of a tunnel T excavated by a shield tunneling method.

[0014] The tunnel T has a substantially cylindrical wall T2, and the inside of the wall T2 is divided into an upper space T4 and a lower space T5 by a deck T3. An inspection path T1 and a road surface T6 are provided in the upper space T4, and the inspection path T1 is provided at a position one step higher than the road surface T6. A water distribution main (not shown) for distributing water to the fire hydrant device 1, etc. is provided in the lower space T5.

[0015] The fire hydrant device 1 includes a fire hose 2 having a fire nozzle 20 provided at the tip side, a nozzle accommodating section 3, and a hose accommodating section 4, and the nozzle accommodating section 3 is provided separately from the hose accommodating section 4. In this embodiment, the nozzle accommodating section 3 and the hose accommodating section 4 are provided at a distance from each other, and the nozzle accommodating section 3 is provided on the inspection path T1, for example, above the inspection path surface T1a, and the hose accommodating section 4 is installed so as to be embedded in the inspection path T1.

[0016] Moreover, the volume of the nozzle accommodating portion 3 is preferably set to be smaller than the volume of the hose accommodating portion 4, and more preferably, the volume of the nozzle accommodating portion 3 is set to be 50% or less of the volume of the hose accommodating portion 4. By setting the volume of the nozzle accommodating portion 3 to be 50% or less of the volume of the hose accommodating portion 4, it becomes possible to more easily install the fire hydrant device 1. In this embodiment, the volume of the nozzle accommodating portion 3 is about 34% of the volume of the hose accommodating portion 4.

[0017] The nozzle storage section 3 is capable of storing the fire extinguishing nozzle 20, and is provided, for example, so as to be located on the inspection path T1 on the wall surface T2 side. The nozzle storage section 3 has a housing section 30. The housing section 30 is provided with an indicator light 31 and a transmitter 32, and is provided therein with a holding section 33 for holding the fire extinguishing nozzle 20 and a lever section 34, which is an example of an opening / closing means for opening and closing a fire hydrant valve, which will be described later.

[0018] In addition, the housing part 30 has an opening 30b provided in a bottom plate 30a of the housing part 30, which corresponds to the bottom surface of the nozzle accommodating part 3, and at least a part of the front plate 30c of the housing part 30, which corresponds to the front surface of the nozzle accommodating part 3, has a window part 30d made of a transparent or translucent material.

[0019] The window portion 30d is provided so that the housed fire extinguishing nozzle 20 can be seen from outside the nozzle housing portion 3. In this embodiment, the window portion 30d is also provided so that the lever portion 34 can be seen from outside the nozzle housing portion 3. This makes it easier for the user of the fire hydrant device 1 to recognize the fire extinguishing nozzle 20 and the lever portion 34.

[0020] The opening 30b is provided so that the extinguishing nozzle 20 can be removed from the nozzle housing 3, and is always open. That is, the extinguishing nozzle 20 can be removed from the nozzle housing 3 from the bottom side of the nozzle housing 3, and in the event of a fire, the extinguishing nozzle 20 is pulled downward from the nozzle housing 3. In this embodiment, the opening 30b is further provided with a rubber slit 30e, which is an example of a dust guard for preventing dust from entering the nozzle housing 3 from the outside.

[0021] The hose housing 4 is provided so as to be able to house the fire hose 2. The hose housing 4 is provided in a substantially box-like shape and has a main body 40 and a top plate 41. The main body 40 is provided so as to be able to house the fire hose 2 in a wound state, and a through hole 40a is provided in the side plate 40b for connecting the base end of the fire hose 2 to the primary side piping 5 extending from the main water distribution pipe of the tunnel T. The primary side piping 5 is provided with various valves such as an automatic drain valve 50 and a maintenance valve (not shown) provided before and after the automatic drain valve 50, a pressure regulating valve (not shown) and a fire hydrant valve (not shown), and in this embodiment, all of the various valves are disposed in the lower space T5.

[0022] The top plate 41 constitutes the ceiling of the hose housing 4 and is provided with a door section 41a. The door section 41a is provided, for example, to store the fire hose 9 pulled out from the hose housing 4 back into the hose housing 4 after firefighting activities. The door section 41a is provided with a hose outlet 41b for pulling out the fire hose 2 to the outside of the hose housing 4, so that the door section 41a can be opened and closed even if the fire hose 2 is present. In this embodiment, the door section 41a can be rotated in the opposite direction to the main body section 40.

[0023] For this reason, in this embodiment, the fire hose 2 normally extends from the hose outlet 41b to the outside of the main body 40, toward the opening 30b, enters the housing 30 from the opening 30b, and extends to the fire extinguishing nozzle 20.

[0024] Further, a hose guide portion 6 and a protective cover 7 are provided below the nozzle accommodating portion 3. In this embodiment, the hose guide portion 6 and the protective cover 7 are provided below the nozzle accommodating portion 3 and above the hose accommodating portion 4, i.e., between the nozzle accommodating portion 3 and the hose accommodating portion 4.

[0025] The hose guide portion 6 is provided to enable the fire hose 2 to be smoothly pulled out when fire water is supplied to the fire hose 2 and / or to prevent the fire hose 2 from being thrown out of control due to the water pressure or the like. In this embodiment, the hose guide portion 6 also serves as a fixing device for fixing the nozzle housing portion 3, and has a guide body 60 and a columnar body 61 fixed to the bottom plate 30a of the nozzle housing portion 3 and the top plate 41 of the hose housing portion 4. The columnar body 61 is formed so that the front side is approximately crank-shaped and the back side is approximately rod-shaped, and the guide body 60 is provided so as to bridge the columnar body 61 located on the front side.

[0026] The protective cover 7 is provided to protect the portion of the fire hose 2 exposed to the outside from flames of a fire, and is heat resistant itself. In this embodiment, the protective cover 7 is provided between the hose guide part 6 and the top plate 41, and stands so as to surround the column body 61 of the hose guide part 6.

[0027] When operating the fire hydrant device 1, (1) remove the fire nozzle 20 from the holding portion 33, (2) take out the fire nozzle 20 from the nozzle accommodating portion 3 through the opening 30b, (3) hold the fire nozzle 20 and pull out the fire hose 2 above the hose guide portion 6 toward the road surface T6, and (4) then operate the lever portion 34 to open the fire hydrant valve and spray water from the fire nozzle 20.

[0028] In the fire hydrant device 1 of this embodiment, by separating the nozzle accommodating section 3 and the hose accommodating section 4, it is possible to embed the hose accommodating section 4 in the inspection path T1, and since the nozzle accommodating section 3 installed on the inspection path T1 can be made thinner compared to conventional fire hydrant devices, it is possible to ensure a wider inspection path T1.

[0029] Additionally, the following effects can be mentioned as secondary effects of separating and spacing the nozzle housing 3 and the hose housing 4 as in this embodiment: Since the users of the fire hydrant device 1 are mainly ordinary people who are not skilled in firefighting activities such as firefighters, it is desirable for the fire hydrant device to be as easy to operate as possible.

[0030] In conventional fire hydrant devices, the fire hose cannot be pulled out from the fire hydrant device unless the fire hydrant door is first opened. However, in the fire hydrant device 1 of this embodiment, the nozzle accommodating section 3 and the hose accommodating section 4 are separated and spaced apart, making it possible to provide an opening 30b, and the fire hose 2 can be pulled out without any prior operation. Therefore, the fire hydrant device 1 can be intuitively operated, making operation simpler than that of conventional fire hydrant devices.

[0031] In addition, in this embodiment, a window portion 30d is provided in the nozzle accommodating portion 3, making it easier to grasp the positions of the fire extinguishing nozzle 20 and the lever portion 34, making operation even easier than with conventional fire hydrant devices.

[0032] Although the present invention has been described based on the above embodiment, the present invention is not limited to the above embodiment and can be modified as appropriate without departing from the gist of the invention.

[0033] (A) In the above embodiment, the nozzle accommodating portion 3 is fixed onto the inspection path T1 by the hose guide portion 6, but the fixing location and fixing means of the nozzle accommodating portion 3 can be appropriately selected, and for example, the nozzle accommodating portion 3 can be fixed to the wall surface T2, and in this case, an insert anchor (not shown) or the like provided on the wall surface T2 may be used for fixing. In this case, the hose guide 6 does not need to double as a fixing tool, and it is also possible to form the nozzle accommodating portion 3 only below the nozzle accommodating portion 3 or only above the hose accommodating portion 4.

[0034] (B) In the above embodiment, the hose accommodating portion 4 is installed so as to be embedded in the inspection path T1, but the installation location of the hose accommodating portion 4 can be appropriately selected as long as it does not impede passage along the inspection path T1, and for example, it may be installed in the lower space T5 or attached to the wall surface T2. In this case, it is also possible to separately attach both the hose accommodating portion 4 and the nozzle accommodating portion 3 to the wall surface T2, or it is also possible to provide the hose accommodating portion 4 on the wall surface T2 and the nozzle accommodating portion 3 on the inspection path surface T1a.

[0035] (C) In the above embodiment, the automatic drain valve 50 is provided outside the hose housing 4, but it is also possible to provide the automatic drain valve 50 inside the hose housing 4. In this case, for example, the automatic drain valve 50 can be provided near the through hole 40a (see FIG. 5).

[0036] (D) In ​​the above embodiment, the protective cover 7 is fixed and does not cover the opening for pulling out the fire hose 2, for example, the opening above the guide body 60 of the hose guide portion 6. However, the protective cover portion 7 may be arranged to cover the opening as well, and a door portion (not shown) may be provided on the protective cover 7 to enable the opening to be opened when the fire hydrant device 1 is operated.

[0037] (E) There may be provided a height position adjustment means (not shown) for the nozzle storage part 3. As the height position adjustment means, the column 61 may be made extendable and retractable, and the column 61 itself may serve as the height position adjustment means, or a fixture for the nozzle storage part 3 may be attached to the wall surface T2 and made to be a sliding fixture, and the fixture may serve as the height position adjustment means.

[0038] (F) In the above embodiment, the nozzle housing 3 is provided on the wall surface T2 side, but it can also be provided on the road surface T6 side. The hose outlet 41b can also be provided on the road surface T6 side, and similarly, the protective cover 7 can also be provided on the road surface T6 side. [Explanation of symbols]

[0039] 1 Fire hydrant 2 Fire hose 20 Fire nozzle 3 Nozzle accommodating section 30 Housing section 30a Bottom plate 30b opening 30c front panel 30d window 30e Rubber slit 31 Indicator light 32 Transmitter 33 Holding portion 34 Lever portion 4 Hose housing portion 40 Main body 40a Through hole 40b Side plate 41 Top plate 41a Door portion 41b Hose outlet 5 Primary piping 50 Automatic drain valve 6 Hose guide 60 Guide body 61 Pillar body 7 Protective cover T Tunnel T1 Inspection Road T1a Inspection Road Surface T2 Wall T3 Floor T4 Upper space T5 Lower space T6 Road surface

Claims

1. A fire hydrant device installed in a tunnel, A fire hose having a fire extinguishing nozzle at its tip; a nozzle housing portion in which the fire extinguishing nozzle is housed; a hose housing portion in which the fire extinguishing hose is housed; The nozzle housing and the hose housing are provided separately, The nozzle accommodating section has a housing section, an opening section is provided on a bottom surface of the housing section, and the nozzle accommodating section is provided so as to be positioned on an inspection path on a wall surface side of the tunnel, The hose housing has a hose outlet provided on the ceiling thereof, The fire hose extends from the hose outlet to the outside of the hose housing, through the opening into the housing, and to the fire nozzle.

2. The fire hydrant device according to claim 1, wherein the hose housing is attached to a wall surface of the tunnel.

3. The fire hydrant device according to claim 1 or 2, wherein the nozzle housing portion is located above the hose housing portion.

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