JPH09206401A - Fire water supply starter for ceiling-mounted fire hydrant - Google Patents

Abstract

(57) [Abstract] [Problem] In a ceiling-mounted fire hydrant, it is possible to respond to an operation standard such as opening an on-off valve of water for extinguishing water without releasing the water discharge nozzle. SOLUTION: A starting device of a water supply device for fire extinguishing in a ceiling-mounted fire hydrant that solves the above-mentioned problem is that a fire hose is wound and placed on a receiving frame in a fire hydrant box, and a guide ring through which the fire hose passes is placed on the receiving frame. The fire hose is sandwiched and supported by a pressing body suspended via the guide ring and a rod-shaped spring, and the pressing body is brought into contact with the vicinity of the pressing body due to the tilting of the pressing body accompanying the pulling-out operation of the fire hose to extinguish a fire. A switch for activating the opening / closing of the electric water-operated on-off valve is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for activating a supply device such as an electric on-off valve for fire extinguishing water in a ceiling-mounted fire hydrant containing a fire hose.

[0002]

2. Description of the Related Art Conventional fire hydrants are installed on the wall surface of a building, and ceiling-mounted fire hydrants have not yet been generalized.

[0003]

Regarding the operation of the on-off valve in the fire hydrant, it is standard that a series of operations such as opening the on-off valve of the water for extinguishing water, extending the hose and discharging water can be done by one person without releasing the water discharge nozzle. The usual wall-mounted fire hydrant as in the above-mentioned prior art does not require any special consideration because it has an on-off valve at hand.

However, since the fire hydrant cannot be reached in the ceiling-mounted type, it is unavoidable to rely on the automatic system for opening / closing the valve, and in the case of the automatic system, it is linked with the extension work of the hose. It is also set as a standard to ensure full opening with certainty, and together with the above-mentioned standards, it is regarded as the biggest issue in this type of technological development.

An object of the present invention is to solve the above problems by providing a device for starting a fire extinguishing water supply device such as an opening / closing valve in a ceiling-mounted fire hydrant when a fire hose is pulled out when extinguishing a fire. is there.

[0006]

[Means for Solving the Problems] A starting device for a water supply device for fire extinguishing in a ceiling-mounted fire hydrant satisfying the above object is
A fire hose with a guide ring through which a fire hose passes is provided on the opening surface of the fire hydrant box.One end of the fire hose is connected to an electric on-off valve that connects to the water supply pipe, and the other end of the fire hose is equipped with a water discharge nozzle. A pressing body that is rotated and placed, is hung from the fire hydrant box by a rod-shaped spring, the tip portion is located in the guide ring, and the fire hose passing through the guide ring is pressed by the urging of the rod-shaped spring. Provided in the vicinity of the pressing body is a switch for abutting due to the tilting of the pressing body associated with the initial pull-out operation of the fire hose at the time of extinguishing the fire to start the fire extinguishing water supply device such as opening of the electric opening / closing valve. It will be.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a starting device for a water supply system for fire extinguishing in a ceiling-mounted fire hydrant according to the present invention.
1 is a vertical side view of a ceiling-mounted fire hydrant, and FIG. 2 is X in FIG.
-X 'sectional drawing, FIG. 3 is a vertical side view of an activation device. A description will be given below with reference to the drawings.

Reference numeral A in the figure indicates a ceiling-mounted fire hydrant,
The fire hydrant A is installed on the ceiling with the opening surface 1a of the fire hydrant box 1 facing downward, the door 1b is pivotally supported on the opening surface 1a, and the inner wall of the fire hydrant box 1 and the partition plate 1 are provided above the door 1b.
The outer frame portion 3 of the substantially rectangular receiving frame 3 is attached to the supporting pieces 2 and 2 fixed to c.
A guide ring 5 is provided at a substantially central portion of the receiving frame 3 through which a fire hose 4 having a cylindrical or arcuate cross-section with both upper and lower edges widened through a supporting rod 3b is provided. The fire hose 4 having one end connected to the electric opening / closing valve 7 provided in the fire hydrant box 1 and the water discharge nozzle 8 attached to the other end on the receiving frame 3
The electric on-off valve 7 is connected to the water supply pipe 6 which communicates with the fire hydrant pump, and the electric on-off valve 7
The fire extinguishing water pump shall be configured with the fire hydrant pump. Further, on the top plate 1d of the fire hydrant box 1, there is provided a pressing member 10 having a hemispherical tubular shape at the position directly above the guide ring 5 arranged on the receiving frame 3 via a bar spring 9 made of a coil spring or elastic rubber. In the normal state, it is hung and positioned in the central part of the guide ring 5, and the tip part is located in the guide ring 5, and a gap B narrower than the diameter of the fire hose 4 is provided between the inner diameter of the guide ring 5 and the pressing body 10. A switch 11 is provided near the rod-shaped spring 9 for activating an electrically operated on-off valve 7 to open a fire extinguishing water supply device, and a contact 11 of the switch 11 is suspended.
When a is located in the pressing body 10 and the fire hose is interposed in the gap B between the guide ring 5 and the pressing body 10 and the pressing body 10 is tilted against the urging force of the rod spring 9 for restoring the posture. The contactor 11a need only come into contact when the pressing body 10 is tilted, and the installation location is not limited to this.

The embodiment is constructed as described above, and in a normal state, the front part of the fire hose 4 which is wound and stored on the receiving frame 3 in the fire hydrant box 1 is passed through the gap B between the guide ring 5 and the pressing body 10. As a result, the bar-shaped spring 9 is arranged in a state of being supported by the biasing force of the rod-shaped spring 9 in a pressed state, and in the event of a fire, the door 1b
The fire hose 4 by holding the water discharge nozzle 8
The fire hose 4 wound around at the time of pulling out is wound around and unwound around the pressing body 10 while being unwound, thereby pushing out the pressing body 10 and the guide ring 5. The moving point of the fire hose 4 due to
That is, the tilting direction of the pressing body 10 changes, and the pressing body 10 comes into contact with the contact 11a of the switch 11 due to the change in the tilting direction of the pressing body 10 in the initial stage of drawing, and the opening / closing of the electric on-off valve 7 and the fire hydrant pump or The fire extinguishing water supply device such as a remote starting device of the fire hydrant pump is activated to supply the fire extinguishing water to the fire hose 4.

According to the above, the pressing body supporting the fire hose in a tilted state is tilted due to the withdrawal operation of the fire hose when a fire occurs, so that the motor-operated on-off valve connected to the water supply pipe for the fire fighting water is opened to extinguish the fire. Since the switch for starting the water supply device is activated, the on / off valve of the fire hydrant can be opened without releasing the water discharge nozzle. it can.

[0011]

EFFECTS OF THE INVENTION A fire hose wound around and placed on a receiving frame in a fire hydrant box installed on the ceiling is held together with a guide ring through which the fire hose passes, and a pressing body holds the fire hose withdrawing the fire hose when a fire occurs. The tilt of the fire extinguisher allows the fire extinguisher water on-off valve to be opened without letting go of the water discharge nozzle because it activates the switch for starting the fire extinguishing water supply device, such as opening the electric on-off valve that connects to the fire extinguisher water supply pipe. Satisfy the operation standard of the on-off valve in.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a ceiling-mounted fire hydrant.

FIG. 2 is a sectional view taken along line XX ′ in FIG.

FIG. 3 is a vertical sectional side view of the activation device.

[Explanation of symbols]

 1 Fire Hydrant Box 1a Opening Surface 3 Receiving Frame 4 Fire Hose 5 Guide Ring 6 Water Supply Pipe 7 Electric Opening Valve 8 Water Discharge Nozzle 9 Rod Spring 10 Pressing Body 11 Switch A Ceiling Mounted Fire Hydrant

Claims (1)

[Claims] 1. A fire hydrant box is provided with a receiving frame provided with a guide ring through which a fire hose passes, on the opening face, one end of the receiving frame is connected to an electric on-off valve that connects to a water supply pipe, and a water discharge nozzle is attached to the other end. The fire hose is wound and placed on the fire hydrant box, and the fire hose is hung by a rod-shaped spring on the fire hydrant box. The tip portion of the fire hose is located in the guide ring and passes through the guide ring by the urging of the rod-shaped spring. A switch for activating the water supply device for fire extinguishing such as opening of the electric on-off valve by contacting the pressing body in the vicinity of the pressing body by tilting of the pressing body associated with the initial pull-out operation of the fire hose during fire extinguishing A device for starting a water supply system for fire extinguishing in a ceiling-mounted fire hydrant box in which the above is installed.