Fire hydrant system

Abstract

The present invention provides a fire hydrant system that allows for a thinner design of the equipment installed on inspection paths compared to conventional fire hydrant systems, and that allows for a wider inspection path compared to conventional fire hydrant systems. [Solution] The fire hydrant device 1 installed in a tunnel T comprises a fire hose 2 with a fire extinguishing nozzle 20 at its tip, a nozzle housing 3 having a housing portion 30 that houses the fire extinguishing nozzle 20, a hose housing 4 that houses the fire hose 2, and a hose guide portion 6. The nozzle housing 3 and the hose housing 4 are provided separately and spaced apart, and the hose guide portion 6 is provided between the nozzle housing 3 and the hose housing 4 and has a column 61 and a guide body 60 provided so as to bridge the column 61.

Description

Technical Field

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

Background Art

[0002] Conventionally, there has been a fire hydrant device installed in a tunnel. Such a fire hydrant device was installed in a space created by cutting out a box from the tunnel wall surface. However, in recent years, tunnels are being excavated by the shield method. In this case, since the inner wall of the tunnel is constructed by segments simultaneously with the excavation, it has become difficult to secure an installation space for the fire hydrant device by cutting out the tunnel wall surface.

[0003] Therefore, in a tunnel excavated by the shield method, the fire hydrant device is not embedded in the tunnel wall surface but is installed in an empty space in the tunnel, for example, on the inspection road (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The inspection road in the tunnel is originally a relatively narrow passage. Moreover, with the installation of facilities such as fire hydrant devices on the inspection road, the inspection road becomes even narrower. Therefore, it is desired that facilities such as fire hydrant devices installed on the inspection road be made as thin as possible.

[0006] On the other hand, conventional fire hydrant systems have a housing installed on the inspection path. Since the fire hose is housed in this housing, it is necessary to ensure sufficient volume within the housing to accommodate the fire hose, which naturally limits the possibility of making the fire hydrant system thinner.

[0007] Therefore, the present invention aims to provide a fire hydrant system that allows the equipment installed on the inspection path to be made thinner than conventional fire hydrant systems, and that can secure a wider inspection path compared to conventional fire hydrant systems. [Means for solving the problem]

[0008] The present invention relates to a fire hydrant device installed in a tunnel, comprising a fire hose with a fire extinguishing nozzle at its tip, a nozzle housing section having a casing for housing the fire extinguishing nozzle, a hose housing section for housing the fire hose, and a hose guide section, wherein the nozzle housing section and the hose housing section are separate and spaced apart, and the hose guide section is provided between the nozzle housing section and the hose housing section and comprises a column and a guide body provided to bridge the column.

[0009] Furthermore, in this invention, the hose guide portion may also serve as a fixing device for securing the nozzle housing portion. In addition, in this invention, the column may be extendable and retractable and provided as a means for adjusting the height position of the nozzle housing portion. Furthermore, in this invention, the column may be fixed to the bottom plate of the nozzle housing portion and the top plate of the hose housing portion.

[0010] Furthermore, in this invention, the vertical direction of the fire hydrant device is determined in the state in which the fire hydrant device is installed. Also, in this invention, "separate unit" includes a unit in which the nozzle housing and the hose housing are connected by a separate component with a gap between them. [Effects of the Invention]

[0011] The present invention provides a nozzle housing and a hose housing, and since the nozzle housing and hose housing are separate components, the equipment installed on the inspection path can be made thinner than conventional fire hydrant systems, and the inspection path can be made wider compared to conventional fire hydrant systems. [Brief explanation of the drawing]

[0012] [Figure 1] This is a front view of an embodiment of the present invention. [Figure 2] This is a right side view of an embodiment of the present invention. [Figure 3] This is a bottom view of the nozzle housing in an embodiment of the present invention. [Figure 4] This is a plan view of the hose housing section in an embodiment of the present invention. [Figure 5] This figure shows a modified example of an embodiment of the present invention and corresponds to the VV cross-sectional view in Figure 2. [Modes for carrying out the invention]

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

[0014] The tunnel T has a roughly cylindrical wall surface T2, and the inside of the wall surface T2 is divided into an upper space T4 and a lower space T5 by a deck slab T3. The upper space T4 is provided with an inspection path T1 and a road surface T6, with the inspection path T1 being located at a higher level than the road surface T6. The lower space T5 is provided with a main water distribution pipe (not shown) for supplying water to fire hydrant equipment 1, etc.

[0015] The fire hydrant device 1 comprises a fire hose 2 with a fire extinguishing nozzle 20 at its tip, a nozzle housing 3, and a hose housing 4, with the nozzle housing 3 being provided separately from the hose housing 4. In this embodiment, the nozzle housing 3 and the hose housing 4 are spaced apart, with the nozzle housing 3 provided on the inspection path T1, for example, above the inspection path surface T1a, and the hose housing 4 being installed so as to be embedded in the inspection path T1.

[0016] Furthermore, it is preferable that the volume of the nozzle housing 3 be smaller than the volume of the hose housing 4, and more preferably, the volume of the nozzle housing 3 be 50% or less of the volume of the hose housing 4. By setting the volume of the nozzle housing 3 to be 50% or less of the volume of the hose housing 4, it becomes possible to install the fire hydrant device 1 more easily. In this embodiment, the volume of the nozzle housing 3 is approximately 34% of the volume of the hose housing 4.

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

[0018] Furthermore, the housing portion 30 has an opening 30b in the bottom plate 30a of the housing portion 30, which corresponds to the bottom surface of the nozzle housing portion 3, and at least a part of the front plate 30c of the housing portion 30, which corresponds to the front surface of the nozzle housing portion 3, is provided with a window portion 30d made of a transparent or light-transmitting material.

[0019] The window portion 30d is provided so that the housed fire nozzle 20 can be visually recognized from outside the nozzle housing portion 3. In the present embodiment, the window portion 30d is provided so that the lever portion 34 can also be visually recognized from outside the nozzle housing portion 3. By doing so, the user of the fire hydrant device 1 can more easily recognize the fire nozzle 20 and the lever portion 34.

[0020] The opening 30b is provided to enable the fire nozzle 20 to be taken out of the nozzle housing portion 3 and is always open. That is, the fire nozzle 20 can be taken out from the nozzle housing portion 3 from the bottom surface side of the nozzle housing portion 3, and in case of a fire or the like, the fire nozzle 20 will be pulled downward from the nozzle housing portion 3. In the present embodiment, a rubber slit 30e, which is an example of a dust removing portion for preventing dust from entering the nozzle housing portion 3 from the outside, is further provided in the opening 30b.

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

[0022] The top plate 41 constitutes the ceiling portion of the hose storage section 4 and is provided with a door section 41a. The door section 41a is provided, for example, to store the fire hose 9, which has been pulled out of the hose storage section 4 after firefighting operations, back into the hose storage section 4. The door section 41a is provided with a hose outlet 41b for pulling the fire hose 2 out of the hose storage section 4, and the door section 41a can be opened and closed even with the fire hose 2 inside. In this embodiment, the door section 41a is rotatable to the opposite side from the main body section 40.

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

[0024] Furthermore, a hose guide section 6 and a protective cover 7 are provided below the nozzle housing section 3. In this embodiment, the hose guide section 6 and the protective cover 7 are provided below the nozzle housing section 3 and above the hose housing section 4, that is, between the nozzle housing section 3 and the hose housing section 4.

[0025] The hose guide section 6 is provided to allow the fire extinguishing hose 2 to be smoothly drawn out when fire extinguishing water is supplied to the fire extinguishing hose 2, and / or to prevent the fire extinguishing hose 2 from becoming unstable due to water pressure, etc. In this embodiment, the hose guide section 6 also serves as a fixing device for fixing the nozzle housing section 3, and has a guide body 60 and a column 61 fixed to the bottom plate 30a of the nozzle housing section 3 and the top plate 41 of the hose housing section 4. The column 61 is formed with a roughly crank shape on the front side and a roughly rod shape on the back side, and the guide body 60 is provided so as to bridge the column 61 located on the front side.

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

[0027] When operating the fire hydrant device 1, (1) remove the fire nozzle 20 from the holding part 33, (2) take the fire nozzle 20 out of the nozzle housing part 3 through the opening 30b, (3) hold the fire nozzle 20 and pull out the fire hose 2 towards the road surface T6, passing it over the hose guide part 6, and (4) then operate the lever part 34 to open the fire hydrant valve and discharge water from the fire nozzle 20.

[0028] In the fire hydrant device 1 of this embodiment, by separating the nozzle housing 3 and the hose housing 4, it becomes possible to embed the hose housing 4 in the inspection passage T1. Furthermore, the nozzle housing 3 installed on the inspection passage T1 can be made thinner compared to conventional fire hydrant devices, thus allowing for a wider inspection passage T1.

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

[0030] In conventional fire hydrant systems, the fire hose could not be pulled out of the fire hydrant system unless the fire hydrant door was opened first. However, in the fire hydrant system 1 of this embodiment, by separating and spacing out the nozzle housing 3 and the hose housing 4, it is possible to provide an opening 30b, and the fire hose 2 can be pulled out without any prior operation. As a result, the fire hydrant system 1 can be operated intuitively, and is easier to operate than conventional fire hydrant systems.

[0031] Furthermore, in this embodiment, since a window portion 30d is provided in the nozzle housing portion 3, it is easier to grasp the positions of the fire extinguishing nozzle 20 and the lever portion 34, making operation even simpler compared to conventional fire hydrant devices.

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

[0033] (A) In the above embodiment, the nozzle housing 3 is fixed on the inspection path T1 by the hose guide 6. However, the fixing location and fixing means of the nozzle housing 3 can be selected as appropriate. For example, the nozzle housing 3 can be fixed to the wall surface T2, and in that case, it may be fixed using an insert anchor (not shown) provided on the wall surface T2. In this case, the hose guide 6 does not need to also serve as a fixing device, and it is possible to form it only below the nozzle housing 3 or only above the hose housing 4.

[0034] (B) In the above embodiment, the hose housing 4 was installed embedded in the inspection path T1. However, the installation location of the hose housing 4 can be appropriately selected as long as it does not obstruct passage in the inspection path T1. For example, it may be installed in the lower space T5, or it may be attached to the wall surface T2. In this case, it is also possible to attach both the hose housing 4 and the nozzle housing 3 separately to the wall surface T2, or to install the hose housing 4 on the wall surface T2 and the nozzle housing 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 Figure 5).

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

[0037] (E) A means (not shown) for adjusting the height of the nozzle housing 3 may be provided. The means for adjusting the height of the nozzle housing 3 may be made retractable by making the column 61 extendable and the column 61 itself the means for adjusting the height of the nozzle housing 3, or a fixing device for the nozzle housing 3 may be attached to the wall surface T2 and the fixing device may be made sliding, and the fixing device may be made the means for adjusting the height of the nozzle housing 3.

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

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

Claims

1. A fire hydrant system installed in a tunnel, A fire extinguishing hose equipped with a fire extinguishing nozzle at the tip, The fire extinguishing nozzle is housed in a nozzle housing section having a casing, A hose housing section in which the fire extinguishing hose is housed, It includes a hose guide section, The nozzle housing and the hose housing are separate and spaced apart from each other. The hose guide section is provided between the nozzle housing and the hose housing, and is characterized by having a column and a guide body provided so as to bridge the column.

2. The fire hydrant device according to claim 1, characterized in that the hose guide portion also serves as a fastener for fixing the nozzle housing portion.

3. The fire hydrant device according to claim 1 or 2, characterized in that the column is extendable and retractable and is provided as a means for adjusting the height of the nozzle housing.

4. The fire hydrant device according to any one of claims 1 to 3, characterized in that the column is fixed to the bottom plate of the nozzle housing and the top plate of the hose housing.

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