JPH0817839B2 - fire hydrant - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a fire hydrant, and more particularly to a fire hydrant that is preferably used when installed on the side wall of an indoor passage.

(Prior Art) A fire hydrant installed indoors has a structure in which a hose with a water discharge nozzle attached to its tip and a water shutoff valve are housed inside a box. The long hose was housed in such a manner that the long hose can be easily pulled out by hanging the hose in a meandering manner on the comb-tooth-shaped hook member arranged at.

However, in a fire hydrant having such a configuration, the hose is accommodated in a flat state, and during the fire extinguishing work, after the hose is completely pulled out, one person holds the water discharge nozzle while another person stops the water. There is a problem that it is necessary to open the valve and to bend the hose in order to secure the water flow state, and two or more people are required to carry out the fire extinguishing work.

Therefore, in order to use a shape-retaining hose that retains the hollow cross-sectional shape, wind it around a reel and store it in a box, and to pull out the hose smoothly from the reel even if the hose is pulled out in any direction, The front of the box is rotated horizontally to close it with a door that opens, and when this door is opened, a swing frame that can swing forward around the vertical axis is provided, and the reel can be freely rotated on this swing frame. The one installed was suggested.

According to the fire hydrant with such a configuration, since the shape-retaining hose is used, hold the water discharge nozzle at the end of the hose to open the water stop valve, and then hold the water discharge nozzle and pull out the hose in any direction to the water discharge position. Fire extinguishing work can be performed, and one person can perform fire extinguishing work.

(Problems to be solved by the invention) However, for example, when this fire hydrant is installed on the side wall of the passage in a hospital or the like, when the hose is pulled out to start the fire extinguishing work, the swing frame projects forward from the box of the fire hydrant and the passage is There is a problem in that the evacuation activities for patients may not be carried out smoothly because they may be blocked.

In view of the above-mentioned conventional problems, the present invention is a fire hydrant using a shape-retaining hose, and in spite of being able to reduce the thickness of the box in the front-rear direction, the hose can be smoothly drawn out in either direction. It is an object of the present invention to provide a fire hydrant in which members other than the hose do not largely protrude from the box.

(Means for Solving the Problem) The fire hydrant of the present invention is a box in which a reel around which a shape-retaining hose having a hollow cross-section is wound is rotatably arranged around a fixed horizontal axis in the box. A hose receiving roller rotatable around a horizontal axis is arranged above the reel, and left and right guide rollers are arranged in front of both sides of the hose receiving roller, and the fixed horizontal axis of the reel is the front of the box. And a horizontal axis of the hose receiving roller is parallel to the door.

Preferably, a door that opens and closes the hose withdrawal opening formed in the upper part of the front surface of the box is provided, and a movable member that moves forward to a predetermined position in conjunction with the opening operation of the door is provided,
At least the left and right guide rollers are attached to this movable member.

(Operation) According to the fire hydrant of the present invention, since the shape-retaining hose wound around the reel is used, the fire extinguishing work can be performed by one person. Also, when pulling out the hose, it can be pulled out smoothly from the reel because it is guided by the hose receiving roller above it and is always pulled out upward. It does not interfere with the box, and you can pull out the hose smoothly in either direction. Moreover, since the reel is arranged so as not to move inside the box, and the hose receiving roller and guide roller are also arranged inside the box, there is nothing that protrudes significantly from the box other than the hose during fire extinguishing work, and is installed on the side wall of the passage. However, it does not hinder evacuation activities. Moreover, since the fixed horizontal axis of the reel is oriented vertically with respect to the door provided on the front surface of the box, the thickness of the box in the front-rear direction is not affected by the diameter of the reel, and the length of the fixed horizontal axis is As a result, the size of the box can be reduced, and when the box is installed on the side wall of the passage, the amount of protrusion of the box itself can be reduced, which is extremely preferable. The hose fed from the reel thus arranged faces in the left-right direction. However, by providing the hose receiving roller and the left and right guide rollers, the hose can be smoothly pulled out.

Also, if you open the door of the hose pull-out opening on the upper front of the box, at least the left and right guide rollers will move to a predetermined front position in conjunction with it, so that the hose will be opened even if the left and right width of the box is reduced. There is no risk of interference with the box, and even if the box thickness is reduced, there is a space between the reel and the guide roller when pulling out the hose, so the hose can be guided smoothly and a smooth pull out can be secured. can do.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a box having a rectangular front shape and a relatively small thickness in the front-rear direction and having an opening on the front surface. The lower half of the front opening is closed by a fixed cover plate 2, and the upper hose drawer is provided. The opening 3 is openably and closably closed by a door 5 whose lower edge is pivotally supported up and down by a hinge 4. A locking tool 6 for the door 5 is attached to the upper wall of the box 1 at a substantially central portion in the width direction. The locking tool 6 is configured to lock the door 5 when the door 5 is closed and pressed, and is unlocked when the door 5 is further pressed from that state, and is known as a commercially available product. ing.

In the box 1, a mounting frame 9 including a frame plate 7 having a substantially U-shaped front view, the upper edge of which extends to the vicinity of the upper end of the cover plate 2 and a support plate 8 on the rear surface is arranged and fixed. At the lower part of the support plate 8, a pivotal support portion 11 that supports the reel 10 rotatably around a horizontal axis is fixed. The reel 10 has a shape-retaining hose 12 configured to retain the hollow cross-sectional shape.
Is wound. The base end of the hose 12 is connected to a connecting pipe 13 provided at the center of the reel 10, and a water discharge nozzle 14 is attached to the tip of the hose 12. The connecting pipe 13 is connected to one end of a rotary fluid coupling 15 provided on the pivotally supporting portion 11, and a communication pipe 16 extends upward from the other end of the rotary fluid coupling 15 along the support plate 8 and stops at the upper end thereof. A water valve 17 is installed. Further, a water supply pipe 18 extends from the water shutoff valve 17 toward one side wall of the box 1, and a water supply port 19 is provided at a penetrating portion of one end wall thereof so that a water supply pipe 20 can be connected thereto.

At a position near the front of the pair of left and right upper ends of the frame plate 7,
A lower end portion of the movable bracket 21 is pivotally supported by a pivot bolt 22 so as to be slidable forward and backward, and a torsion spring 23 (FIG. 3) wound around an outer periphery of the pivot bolt 22 moves forward. It is configured to be urged by swinging and to be positioned by a stopper 24 at a predetermined projecting position shown by a solid line in FIGS. Between the pair of left and right movable brackets 21, a hose receiving roller 25 rotatable around a horizontal axis is attached at a position appropriately higher than the upper end of the reel 10, and the hose 12 is arranged along the hose receiving roller 25 above the hose receiving roller 25. A guide bar 26 is attached to guide. In addition, a guide roller 27 rotatable around the vertical axis is attached to the front of each movable bracket 21 by mounting brackets 28a and 28b fixed to the upper and lower ends of the movable bracket 21, The guide rollers 27 are located in front of both ends of the hose receiving roller 25. Also, the guide bar 26
A holder 29 that detachably holds the water discharge nozzle 14 is attached on the top.

In the fire hydrant having the above-described configuration, when performing the fire extinguishing work, when the upper end of the door 5 is pressed, the locking by the locking tool 6 is released and pushed back, and the door 5 is moved by its own weight to the first position.
As shown by the arrow in FIGS. 2 and 3, the hose withdrawal opening 3 opens by rotating downward. When the door 5 is opened, the movable bracket 2 swings forward from the stored state shown by the phantom line in FIG. 2 by the urging force of the torsion spring 23 as shown by the arrow, and the guide roller 27 as shown by the solid line. Is positioned by the stopper 24 at a position substantially facing the front edge of the box 1.

In this state, the water discharge nozzle 14 is removed from the holder 29, held by hand, the water shutoff valve 17 is opened, and the water discharge nozzle 14 is pulled to the fire extinguishing position to directly discharge the water and extinguish the fire. Therefore, as the water discharge nozzle 14 moves, the hose
The hose 12 is pulled out from the reel 10. At this time, the hose 12 is guided from the reel 10 by the hose receiving roller 25 above the reel 10 and is always pulled upward. Since the hose 12 is guided by, the hose 12 does not interfere with both side walls of the box 1, and the hose 12 can be pulled out smoothly in any direction. Further, since the left and right guide rollers 27 move to a predetermined position almost facing the front edge of the box 1,
Hose 12 even if the left and right width of Box 1 is reduced to the limit
Does not interfere with both side walls of the box 1, and even if the thickness of the box 1 is reduced, there is a space between the reel 10 and the hose receiving roller 25 or the guide roller 27 when the hose 12 is pulled out. Therefore, the hose 12 can be guided without difficulty, and the box 1 can be smoothly pulled out while being compactly constructed.

Further, since the reel 10 is arranged so as not to move in the box 1 and the hose receiving roller 25 and the guide roller 27 do not project largely from the box 1, they project from the box 1 other than the hose 12 during the fire extinguishing work. There is nothing,
Even if it is installed on the side wall of an aisle, it will not hinder evacuation activities.

(Effect of the invention) According to the fire hydrant of the present invention, since the shape-retaining hose wound around the reel is used, the fire extinguishing work can be performed by one person,
Even if the hose is pulled out in any direction, the hose is always pulled upward from the reel via the hose receiving roller, and it is also guided in the left and right directions by the guide rollers so that it does not interfere with the box. Can be pulled out smoothly, and the reel is arranged so as not to move inside the box, and the hose receiving roller and guide roller do not protrude from the box. Also, since the fixed horizontal axis of the reel faces the vertical direction with respect to the door installed in the front of the box, the thickness of the box in the front-rear direction can be reduced, resulting in obstacles such as evacuation activities even if the box is installed on the side wall of the aisle. It has a great effect such as never becoming.

When the door for the hose withdrawal opening at the top of the front of the box is opened, at least the left and right guide rollers are moved to a predetermined front position in conjunction with it, making the box width and front-back thickness compact. However, the hose does not interfere with the box, a space can be provided between the reel and the guide roller, and the hose can be pulled out smoothly without difficulty, which is a great effect.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, and FIG. 1 is a perspective view showing the door opened and a part of the box cut away.
The figure is a vertical side view with the door open, and FIG. 3 is a front view with the door and front wall removed. 1 …… Box 3 …… Hose outlet opening 5 …… Door 10 …… Reel 12 …… Hose 21 …… Moveable bracket 25 …… Hose receiving roller 27 …… Guide roller

Claims (2)

[Claims] 1. A reel, around which a shape-retaining hose having a hollow cross-section is wound, is rotatably arranged around a fixed horizontal axis in a box, and is located above the reel in the box around the horizontal axis. Rotatable hose receiving rollers are arranged, left and right guide rollers are arranged in front of both sides of the hose receiving roller, and the fixed horizontal axis of the reel is perpendicular to the door provided on the front of the box. Orientation, the horizontal axis of the hose receiving roller is parallel to the door. 2. A door for opening and closing a hose withdrawal opening formed in the upper part of the front surface of the box is provided, and a movable member that moves forward to a predetermined position in association with the opening operation of the door is provided. The fire hydrant according to claim 1, wherein the guide roller is attached.