JP2000308692A - Support device for fire hose for fire hydrant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smooth the draw-out of a fire hose by disposing a support device having a gap formed to be opened by tensile force at the time of drawing out a fire hose at the tip of the horizontal rod member and at the tip of a vertical rod member. SOLUTION: This support device 8 is formed by a vertical rod member 14 for pressing the side of a wound fire hose by suspending a rod member 13 through a return spring 12 at the forward end region of a support piece 10 of a base plate 11, and a horizontal rod member 17 for hanging down a fire hose, which turns the tip part toward the forward like the lower end of the vertical rod member 14 to gradually reduce in width at an angle. The tip of the vertical rod member 14 and the tip of the horizontal rod member 17 are arranged close to each other with a gap (b) smaller than the fire hose diameter. Thus, the support device 8 is so constructed that the base plate 11 is applied to the substantially central upper part of the back plate of a fire hydrant box and stopped by a small scew through a fitting hole 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire hose, and more particularly to an apparatus for receiving a fire hose housed in a fire hydrant box.

[0002]

2. Description of the Related Art A hose rack having hooks arranged side by side is fixed to a back plate portion in a fire hydrant box, and a wound fire hose is hung one by one and supported, and the fire hydrant serving as a lower part of the ring-shaped hose is supported. A rod extending to both side plates is horizontally mounted on the opening surface of the box.

[0003]

The fire hose housed in the fire hydrant box can be extended in the direction of extension at the time of fire occurrence, that is, the fire hose withdrawal angle of 180 ° with respect to the opening surface of the fire hydrant box. In addition to being able to be pulled out by one person, not being tangled at the time of being pulled out, etc., it is required to be able to be easily pulled out and to be easily stored.

In the above prior art, since the fire hose is merely hung on the hook, it does not hinder the draw-out and deployment, the storage is easy, and the operability seems to be good. When water is supplied, a large weight is applied to the fire hose, and the diameter is expanded, the length is increased, and the diameter of the ring shape is expanded by the straightening action. For this reason, the fire hose is detached from the hook and may become entangled when pulled out, so a rod means as in the latter stage of the prior art is employed.However, since the rod is a hard body, it is pressed by the expansion of the fire hose by the water supply. In addition to plastic deformation, the hose is hooked on the rod when the hose is pulled out, and is bent and becomes a kink state.

An object of the present invention is to provide a new fire hose receiving means capable of solving the above-mentioned problems, thereby facilitating the drawing of the fire hose.

[0006]

A new apparatus for supporting a fire hose for a fire hydrant which achieves the above object is provided at least below the fire hose at a position below an opening surface of a fire hydrant box in which a fire hose is wound and housed. At the time of supply and withdrawal of the fire-extinguishing pressure water, a coil spring in contact with the fire hose is stretched, and the fire hydrant box has a horizontal rod member for hanging the wound fire hose, and a vertical rod member for pressing a side surface. In addition, a support is provided at the distal end of the horizontal rod member and the distal end of the vertical rod member with a gap which is pushed and opened by a pulling force when the fire hose is pulled out.

[0007]

According to the fire hose receiving device for a fire hydrant according to the present invention, the fire hose has a large diameter due to the supply of fire-extinguishing pressure water at the time of a fire, a change in elongation, and a winding due to a straightening action. Swelling from the opening surface, which occurs when a so-called rampage phenomenon such as diameter expansion occurs, and downward displacement due to water load are absorbed by the support of the support tool and the elastic force of the coil spring stretched over the opening surface. Suppressed so that the initially permuted winding permutation is maintained without breaking, and even when the hose is pulled out, the wound fire hose comes off the support one by one and the hose comes into contact with the coil spring, The hose is fed while being braked, so that it is not entangled, and even in this contact, the hose is prevented from bending and becoming kinked due to bending of the coil spring. The coil spring is elastically restored after the hose is pulled out, so it is not deformed.When storing the fire hose, it is possible to store the fire hose in a state where the stretched coil spring is bent and stored. Easy.

[0008]

1 is a front view, FIG. 2 is a cross-sectional view showing locking means of a coil spring, and FIG. 3 is a front view of a support according to the present invention. , FIG.
Is a bottom view of the same, and will be described below with reference to each figure.

In the drawing, reference numeral 1 denotes a fire hydrant box. The fire hydrant box 1 has a base end fastened to a fire hydrant valve 2 connected to a fire hydrant pump, and a nozzle 3 such as a water discharge nozzle or a spray nozzle is mounted at the tip. The fire hose H is wound around, the ring-shaped side is housed toward the opening surface 1a of the fire hydrant box 1, and the upper part is supported by a support 8 fixed to the back plate 1c of the fire hydrant box 1. The lower part of the opening surface 1a is in contact with the fire hose H in the wound and stored normal state or at least when supplying fire-fighting pressurized water to the fire hose H and at the time of pulling out the fire hose H, A coil spring 4 for supporting the fire hose H is stretched horizontally. The coil spring 4 is wound by means for hooking both ends of the coil spring 4 to hooks 5 fixed to the opposite side plate 1b of the fire hydrant box 1. Smallest shape of fire hose H stored and stored Tangent young is stretched at a site slightly corresponding to the inside of 該接 line.

The coil spring 4 need only be a long elastic body, and a wide variety of tensioning and latching means can be used, which can be replaced with a means for fixing the end.

The support member 8 (FIGS. 3 and 4) includes a vertically long substrate 11 comprising mounting holes 9 and 9 formed at both upper and lower ends and a support piece 10 protruding toward the upper end. A vertical rod member 14 which presses a side surface of a wound fire hose H formed by suspending a rod 13 having a return spring 12 interposed therebetween by a screw a, and a lower end of the substrate 11 Two rods 16, 16 with return springs 15, 15 interposed therebetween are horizontally protruded from various parts on the left and right side parts, and gradually toward the front as the tip part is directed toward the lower end of the vertical rod member 14. A horizontal rod member 17 for hanging the wound fire hose H having a narrow angle.
And the distal end of the vertical rod member 14 and the distal end of the horizontal rod member 17 are arranged close to each other with a gap b narrower than the diameter of the fire hose H. Is a substrate 1 at a position substantially above the center of the back plate 1c of the fire hydrant box 1.
1 and is fixed with screws via the mounting holes 9 and 9.

In order to support the fire hose H on the support 8, the fire hose H is pushed into one wheel against the return springs 12 and 15 from the gap b, and the screw a on which the vertical rod member 14 is suspended is removed to remove the horizontal rod. The fire hose H wound around the member 17 is hung, and then the vertical rod member 14 is screwed back to the original position with the screw a.

The fire hose H accommodated in the fire hydrant box 1 grips the nozzle 3 at the time of a fire and pulls the fire hose H so that the diameter of the fire hose H becomes horizontal with the tip of the vertical rod member 14 in the support 8. The gap b at the distal end of the rod member 17 is pushed out one by one against the return springs 12 and 15 one by one, and the hose comes into contact with the coil spring 4 stretched over the opening surface 1a, so that appropriate braking is performed. The opening surface that is generated when the so-called rampage phenomenon occurs, such as a large diameter due to the supply of fire-extinguishing pressure water at the time of fire, a change in elongation, and an increase in the winding diameter due to the straight elongation action. Swelling from 1a and downward displacement due to water load are suppressed by the support by the support member 8 and the elastic force of the coil spring 4 stretched on the opening surface 1a, and the coil is wound in an orderly manner at the beginning. When the hose H is pulled out, the wound fire hose comes off one wheel at a time from the support member 8 and the hose H comes into contact with the coil spring 4 when the hose H is pulled out. Therefore, the hose H is prevented from being bent and kinked due to the bending of the coil spring 4 even in the contact, and the horizontal rod member 1 of the support member 8 is prevented.
7 are arranged at an angle so that they are not caught when the hose H is pulled out in the horizontal direction when the hose H is pulled out, so that the coil spring 4 can be expanded over a wide range. Therefore, the fire hose H can be easily stored, for example, by storing the fire hose H in a state where the coil spring 4 stretched is bent.

[Brief description of the drawings]

FIG. 1 is a front view of a fire hydrant.

FIG. 2 is a cross-sectional view showing locking means of a coil spring.

FIG. 3 is a front view of a support.

FIG. 4 is a bottom view of the support.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fire hydrant box 1a Opening surface 1b Side plate 1c Back plate 2 Fire hydrant valve 3 Nozzle 4 Coil spring 5 Hook 8 Supporting tool 9 Mounting hole 10 Supporting piece 11 Substrate 12 Return spring 13 Rod 14 Vertical rod 15 Return spring 16 Rod 17 Horizontal Rod member a Screw b Gap H Fire hose

Claims (1)

[Claims] 1. A coil spring which is in contact with a fire hose at least at the time of supplying and drawing out fire-fighting pressurized water to the fire hose at a position below an opening surface of a fire hydrant box in which the fire hose is wound and housed. In addition, the fire hydrant box includes a horizontal rod member for hanging the wound fire hose and a vertical rod member for pressing a side surface. A fire hose receiving device for a fire hydrant provided with a support having a gap pushed and opened by a tensile force when the hose is pulled out.