JP7645652B2 - Fire hydrant equipment - Google Patents

Description

The present invention relates to a fire hydrant device.

Traditionally, fire hydrant devices have been installed in tunnels. These types of fire hydrant devices were installed by embedding them in the space created by cutting out a box from the tunnel wall. However, in recent years, tunnels have come to be excavated using the shield construction method. 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.

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 the inspection road (see, for example, Patent Document 1).

JP 2017-56020 A

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

On the other hand, conventional fire hydrant devices have a housing that is installed on the inspection path. Since the fire hose is stored in the housing, it is necessary to ensure a volume within the housing that can accommodate the fire hose, so there is a natural limit to how thin the fire hydrant device can be.

The present invention aims to provide a fire hydrant device that can make at least the equipment installed on the inspection path thinner than conventional fire hydrant devices and ensure a wider inspection path compared to conventional fire hydrant devices.

The present invention is a fire hydrant device comprising a fire hose having a fire nozzle at its tip, a nozzle accommodating section having a housing section in which the fire nozzle is housed, and a hose accommodating section in which the fire hose is housed, the nozzle accommodating section and the hose accommodating section being provided as separate bodies separated from each other , and the fire nozzle being provided so as to be removable from the nozzle accommodating section from the bottom plate side of the housing section when the fire hydrant device is operated .

The present invention also relates to a fire hydrant device comprising a fire hose having a fire extinguishing nozzle at its tip, a nozzle housing section in which the fire extinguishing nozzle is housed, and a hose housing section in which the fire extinguishing hose is housed, the nozzle housing section and the hose housing section being provided as separate bodies spaced apart from each other, a constantly open opening being provided on the bottom surface of the nozzle housing section, the fire extinguishing nozzle being capable of being removed from the nozzle housing section through the opening , and a dust guard section being provided at the opening .

Furthermore, in the present invention, a bottom plate of the housing portion may be provided with an opening that is always open, and the fire extinguishing nozzle may be configured so as to be removable from the nozzle accommodating portion through the opening when the fire hydrant device is operated.

In addition, 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, "separate body" includes a nozzle housing and a hose housing connected at a distance by a separate member.

The present invention provides a nozzle housing and a hose housing, and since the nozzle housing and the hose housing are separate, the equipment installed at least on the inspection path can be made thinner than conventional fire hydrant devices, and the inspection path can be made wider than conventional fire hydrant devices.

FIG. 1 is a front view of an embodiment of the present invention. FIG. 2 is a right side view of the embodiment of the present invention. FIG. 4 is a bottom view of the nozzle housing portion in the embodiment of the present invention. FIG. 2 is a plan view of a hose housing in the embodiment of the present invention. 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.

An embodiment of the present invention will be described with reference to Figs. 1 to 4. The 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.

The tunnel T has a roughly 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. The upper space T4 is provided with an inspection path T1 and a road surface T6, and the inspection path T1 is provided at a position one step higher than the road surface T6. The lower space T5 is provided with a water distribution main (not shown) for distributing water to the fire hydrant device 1, etc.

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

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

The nozzle storage section 3 is capable of storing the fire extinguishing nozzle 20, and is arranged, 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 and closing means for opening and closing a fire hydrant valve, which will be described later.

In addition, the housing 30 has an opening 30b in the bottom plate 30a of the housing 30, which corresponds to the bottom surface of the nozzle storage unit 3, and at least a portion of the front plate 30c of the housing 30, which corresponds to the front surface of the nozzle storage unit 3, has a window 30d made of a transparent or translucent material.

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.

The opening 30b is provided so that the extinguishing nozzle 20 can be removed from the nozzle housing 3, and is always open. In other words, 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 to prevent dust from entering the nozzle housing 3 from the outside.

The hose storage section 4 is configured to be able to store the fire hose 2. The hose storage section 4 is configured in a roughly box-like shape and has a main body section 40 and a top plate 41. The main body section 40 is configured to be able to store the fire hose 2 in a wound state, and a through hole 40a is provided in the side plate 40b to connect 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. In addition, the primary side piping 5 is provided with various valves such as an automatic drainage valve 50 and a maintenance valve (not shown) that is provided before and after it, a pressure regulating valve (not shown), and a fire hydrant valve (not shown), and in this embodiment, all of the various valves are arranged in the lower space T5.

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 of 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 the fire hose 2 out 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.

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, and enters the housing 30 from the opening 30b, and extends to the fire extinguishing nozzle 20.

Furthermore, a hose guide portion 6 and a protective cover 7 are provided below the nozzle housing portion 3. In this embodiment, the hose guide portion 6 and the protective cover 7 are provided below the nozzle housing portion 3 and above the hose housing portion 4, i.e., between the nozzle housing portion 3 and the hose housing portion 4.

The hose guide 6 is provided to allow 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, etc. In this embodiment, the hose guide 6 also serves as a fixing device for fixing the nozzle housing 3, and has a guide body 60 and a column body 61 fixed to the bottom plate 30a of the nozzle housing 3 and the top plate 41 of the hose housing 4. The column body 61 is formed in 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 body 61 located on the front side.

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

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 the fire hose 2 out towards the road surface T6, passing it over the hose guide part 6. (4) After that, operate the lever part 34 to open the fire hydrant valve, and discharge water from the fire nozzle 20.

In the fire hydrant device 1 of this embodiment, by separating the nozzle housing 3 and the hose housing 4, it is possible to embed the hose housing 4 in the inspection path T1, and since the nozzle housing 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.

Furthermore, the following secondary effects can be obtained by 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.

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 housing 3 and the hose housing 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. This makes it possible to intuitively operate the fire hydrant device 1, making it easier to operate than conventional fire hydrant devices.

In addition, in this embodiment, a window portion 30d is provided in the nozzle housing 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.

The present invention has been described based on the above embodiment, but the present invention is not limited to the above embodiment and can be modified as appropriate without departing from the spirit of the invention.

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

(B) In the above embodiment, the hose housing 4 is installed so as to be embedded in the inspection path T1, but the installation location of the hose housing 4 can be selected appropriately as long as it does not impede passage along 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 separately attach both the hose housing 4 and the nozzle housing 3 to the wall surface T2, or it is also possible to provide the hose housing 4 on the wall surface T2 and the nozzle housing 3 on the inspection path surface T1a.

(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).

(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 unit 6. However, the protective cover unit 7 may be provided so as to cover the opening, and a door unit (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.

(E) A height adjustment means (not shown) for the nozzle storage section 3 may be provided. As the height adjustment means, the column 61 may be made extendable and retractable, and the column 61 itself may serve as the height adjustment means. Alternatively, a fixture for the nozzle storage section 3 may be attached to the wall surface T2 and made to be a sliding fixture, and the fixture may serve as the height adjustment means.

(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.

1 Fire hydrant device 2 Fire hose 20 Fire nozzle
3 Nozzle accommodating section 30 Housing section 30a Bottom plate
30b Opening 30c Front plate 30d Window
30e Rubber slit 31 Indicator light 32 Transmitter
33 Holding portion 34 Lever portion 4 Hose storage portion
40 Main body 40a Through hole 40b Side plate
41 Top plate 41a Door portion 41b Hose outlet
5 Primary side piping 50 Automatic drain valve 6 Hose guide section
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 (3)

A fire hydrant device comprising:
A fire hose having a fire extinguishing nozzle at its tip;
A nozzle housing portion in which the fire extinguishing nozzle is housed and which has a housing portion ;
a hose housing portion in which the fire extinguishing hose is housed;
The nozzle housing portion and the hose housing portion are provided separately and spaced apart from each other ,
The fire hydrant device is characterized in that the fire nozzle is removable from the nozzle accommodating portion from the bottom plate side of the casing portion when the fire hydrant device is operated . 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 portion and the hose housing portion are provided separately and spaced apart from each other,
A constantly open opening is provided on the bottom surface of the nozzle housing portion,
The fire extinguishing nozzle is provided so as to be removable from the nozzle housing through the opening,
A fire hydrant device characterized in that the opening is provided with a dust cover. a bottom plate of the housing portion is provided with an opening portion that is always open,
The fire hydrant device according to claim 1 , characterized in that the fire nozzle is removable from the nozzle housing through the opening when the fire hydrant device is operated .

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