JP2000279544A - Fire hydrant device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make findable even a small hole for a fire hose and to make a fire hydrant device surely examinable by providing a normally closed test valve on the secondary side of the fire hydrant valve and providing a connecting port for connecting a cylinder for feeding the compressed air in a test in the test valve. SOLUTION: A fire nozzle 7 is attached to one end side of a fire hose 6, a normally closed test valve 12 is connected to a central attaching port of a T-shaped joint 10 provided in a secondary side of a fire hydrant valve 8 in the other end side, and a connecting port is provided in the tip of the test valve 12. When inspecting the fire hose 6, a gas cylinder is connected to the connecting port of the test valve 12 via a connecting hose so as to open the test valve 12 and at the same time the cock of the gas cylinder is opened to inject the compressed air in the fire hose 6. The cock of the gas cylinder is closed, and when the value of a pressure gauge in the tip of the gas cylinder is not lowered for a prescribed time, it is judged to be normal, and when the value lowers, it is judged that there is an abnormal point in the hose 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a fire hydrant device.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication (Kokai) No. 8-215338 discloses a drum-shaped hose having an opening at the front in a hose housing for storing a fire-extinguishing hose using a synthetic resin shaped hose as a fire-extinguishing hose. A fire hydrant device using the same is disclosed. This fire-extinguishing hose is spirally housed in a hose housing. That is, the fire-extinguishing hose is stored in a state of being wound in multiple rows and multiple layers from the outer peripheral side to the inner peripheral side in the hose housing. A fire extinguishing nozzle is attached to the end of the fire extinguishing hose, and this nozzle is also housed in the hose housing.

[0003]

The fire hydrant device is regularly inspected, and at this time, the fire hose is also inspected. Inspection of the hose includes checking that there is no hole in the hose. Although this inspection method is performed by visually observing the hose, there is a problem that it is difficult to actually find a small hole visually. Accordingly, an object of the present invention is to provide a fire hydrant device that can reliably perform inspection of a fire hose.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above problems, and has a nozzle connected to one end and a fire hydrant valve connected to the other end, and a fire hose. And a fire hydrant device having a front door that can be freely opened and closed on the front surface of the main body, wherein a normally closed test valve is provided on the secondary side of the fire hydrant valve,
The test valve is provided with a connection port to which a cylinder for supplying compressed gas is connected at the time of a test.

[0005]

FIG. 1 is a front view of a fire hydrant device 1 of the present invention showing a state where a front door is opened, and FIG. 2 is a view showing a state where a gas cylinder is attached to a test valve. The fire hydrant device 1 comprises a box-shaped main body 2 having an open front side and a front door 3 attached to the front side of the main body 2 so as to be freely opened and closed.

In the fire hydrant box, there is provided a drum-shaped hose housing 4 mounted on the back plate of the main body 2 and having an opening 4a in the front. Rubber, synthetic resin or the like is provided in the hose housing 4. A fire-extinguishing hose 6 is provided in a spiral state so as to be taken out from the center side. A fire extinguishing nozzle 7 is attached to one end of the fire extinguishing hose 6, and the other end is connected to a fire hydrant valve 8. The nozzle 7 is located on the front door 3
Is held by a nozzle holder 9 provided on the back surface of the nozzle.
The nose holder 9 is formed, for example, in a forked shape, and
Are fitted to hold the nozzle 7.

A T-shaped joint 10 is provided on the secondary side of the hydrant valve 8, that is, between the hydrant valve 8 and the fire-extinguishing hose 6. The test valve 1 which is normally closed is installed in the central mounting port of the joint 10.
2 is connected, and a connection port 14 to which a gas cylinder as a compressed gas supply means described later is connected is provided at the tip of the test valve 12.
Is provided.

Next, a method for checking the fire extinguishing hose 6 will be described with reference to FIG. When checking the fire hose 6, first, the gas cylinder 15 is connected to the connection port 14 of the test valve 12 via the connection hose 16. And the test valve 12
Is opened and the cock of the gas cylinder is opened, and a compressed gas such as air or nitrogen gas is injected into the fire hose 6. At this time, nozzle 7
Close the water cock not shown. Further, the nozzle 7
A rubber stopper or the like may be provided at the spout.

When gas is injected for a predetermined time and the inside of the hose 6 is sufficiently pressurized, the cock of the gas cylinder 15 is closed, and the value of the pressure gauge P or the regulator attached to the tip of the gas cylinder 15 is checked. If the value of the pressure gauge P does not decrease for a predetermined period of time, for example, several minutes, it is understood that the hose 6 is normal without a hole. It is determined that there is, and the hose 6 is replaced. After confirming whether the fire hose 6 is normal or not, the hose 16 is removed from the connection port 14 and the test valve 12 is closed, and the inspection of the fire hose 6 is completed.

In the present embodiment, the case where the joint 10 and the test valve 12 are provided on the secondary side of the fire hydrant valve 8 has been described. However, these may be integrated into one and a test valve composed of a three-way valve may be provided. Good. That is, a three-way valve is connected between the fire hydrant valve 8 and the nozzle 7, communication between the fire hydrant valve 8 and the nozzle is normally established, and only the other connection port of the three-way valve is closed. The hose 6 may be inspected by connecting the spaces and closing only the fire hydrant valve 8 side.

The position of the test valve 12 may be between the fire hydrant valve 8 and the nozzle 7, and may be provided, for example, near the connection between the nozzle 7 and the fire hose 6. The injection (supply) of the compressed gas into the fire hose may be performed by opening the nozzle and injecting the gas from the nozzle. Further, when a coloring gas is used as the pressure gas, the coloring gas flows out of an abnormal portion of the hose, so that the location can be easily found.

The test valve does not have to be a valve provided with an ordinary valve element. For example, when a male screw is provided on the outer periphery of the fitting opening of the joint and a metal cap having a female screw to be screwed into the male screw is provided in the fitting opening, the cap becomes the test valve of the present embodiment, and the fitting hole is formed. Is the connection port of the present embodiment. In this case, if the joint 10 is provided so that the mounting port faces downward, the mounting port can be used for inspection of a fire hydrant valve or the like.

[0013]

According to the present invention, in the fire hydrant device, a normally closed test valve is provided on the secondary side of the fire hydrant valve, and the test valve is provided with a connection port to which a gas cylinder is connected at the time of the test. Inspection of the fire extinguishing hose consisting of can be performed easily and reliably.

[Brief description of the drawings]

FIG. 1 is a front view of a fire hydrant device of the present invention.

FIG. 2 is a drawing showing a state in which a gas cylinder is attached to the test valve of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Fire hydrant device, 2 main body, 3 Front door, 4 Hose storage body, 4a opening, 6 Fire hose, 7
Nozzle, 8 fire hydrant valve, 9 nozzle holder, 10
Fitting, 12 test valve, 14 connection port, 15 gas cylinder, 16 hose, P pressure gauge,

Claims (4)

[Claims] 1. A fire-extinguishing hose having a nozzle connected to one end and a fire hydrant valve connected to the other end, a main body storing the fire-extinguishing hose therein, and a front door which is openably and closably mounted on a front surface of the main body. A fire hydrant comprising: a hydrant valve provided with a normally closed test valve on the secondary side of the hydrant valve; and a connection port to which a compressed gas supply cylinder is connected at the time of the test. apparatus. 2. The fire hydrant device according to claim 1, wherein said fire extinguishing hose is made of synthetic resin or rubber. 3. The fire hydrant device according to claim 1, wherein the test valve comprises a three-way valve, and always closes between the fire hydrant valve and the nozzle. 4. A fire hose having a nozzle connected to one end and a fire hydrant valve connected to the other end, a main body for storing the fire hose inside, and a front door openably and closably mounted on a front surface of the main body. In the fire hydrant device provided with, the fire extinguishing hose is formed of synthetic resin or rubber,
A fire hydrant device, wherein a compressed gas is supplied from a nozzle into the fire hose when the fire hose is inspected.