JPH06622B2 - Water discharge device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water discharger, and more particularly to a water discharger for use in indoor or outdoor fire hydrants.

A fire hydrant that has been widely used in the past is one in which a fire hose with a rubber lining on the inner surface of a tubular woven fabric is folded zigzag and stored in a fire hydrant box,
When using this, the entire length must be taken out from the fire hydrant box and extended, and if the hose bends it will not be able to pass water, so even unskilled people can not pass water satisfactorily. there were.

Therefore, in recent years, there has been a demand for a fire hydrant that allows a hose to be stored in a fire extinguisher box in a wound state and to pass water while being wound around the winder.

Conventional technology As this kind of fire hydrant, it is common to wind a hose such as a rubber hose that always holds a circular cross section, but the hose is heavy and the wall thickness of the hose is thick, making it difficult to handle.
In addition, the fire hydrant becomes large, which is not preferable.

Therefore, if a conventional fire hose type hose can be wound around a winder and stored in a fire hydrant box, it will be light and easy to handle, and the fire hydrant will be compact, but A hose of a hose type is normally folded flat, and when it is wound around the winder as it is, it cannot be used because it cannot bulge in a circle when trying to pass water.

As a solution to this point, there is the invention of Japanese Patent Application No. 62-271500 filed by the applicant earlier.

This allows the winding frame of the winder to be reduced in the radial direction, and allows the hose to shrink in the radial direction due to the water pressure applied to the hose during water passage, allowing the hose to expand into a cylindrical shape. It is like this.

Problems to be Solved by the Invention Although the invention of this application was basically excellent, any of the specific examples described in the application had a complicated structure or a hose. The winding frame was easily shrunk due to the force of winding, and there was no room for shrinking when water was passed, so the desired effect could not be achieved.

The present invention has been made in view of such circumstances, and while making use of the basic principle of the invention, it can be provided at a low cost with a simple structure, and a hose can be easily wound and water can pass through. It is an object of the present invention to provide a concrete structure that can reduce the diameter of the hose so that the hose can swell and can pass water.

MEANS FOR SOLVING THE PROBLEMS In the present invention, flanges are provided at both ends of a shaft rotatably supported with respect to a support, and concentric circular annular rings are provided on opposite surfaces of the flange. Form a deterrent,
An elastic plate is bent in an annular shape to form a winding bed, and both ends of the winding bed are movably fitted between the restraining portions in the radial direction of the flange and along the outer restraining portion, It is characterized in that a flatly folded hose is wound around the outer surface of the winding bed, and one end of the hose is connected to a water supply source through the shaft and a rotary joint provided at one end of the shaft.

1 and 2 show a water discharge device of the present invention. Reference numeral 1 is a base as a support, on which a reel 2 is rotatably supported. The reel 2 comprises a shaft 3 supported by the base 1 and flanges 4 and 4 provided at both ends of the shaft 3,
A water supply channel 5 is formed at one end of the
It is connected to a water supply port 6 formed on the outer circumference of the shaft 3. A water supply hose 8 is connected to the end of the water supply path 5 via a rotary joint 7 so that water can be supplied from the water supply hose 8 to the water supply port 6 via the water supply path 5 while rotating the reel 2. Has become.

An annular groove 9 is engraved on the surfaces of the flanges 4 and 4 that face each other, and the outer peripheral surface and the inner peripheral surface of the groove 9 form restraining portions 10 and 11, respectively. This deterrent unit 10,
The intervals of 11 are sufficiently larger than the thickness of the plate 13 forming the winding bed 12 described later, and it is appropriate that the intervals of the radius or diameter of the hose 14 be set.

Reference numeral 12 denotes a winding bed, which is formed by bending a plate 13 made of an elastic material such as metal or hard plastic into an annular shape, and both side edges of which are fitted in the grooves 9 of the flanges 4 and 4, The plate 13 is movable between the restraining portions 10 and 11 of the groove 9, and forms a cylindrical winding floor 12 along the outer restraining portion 10.

14 is a hose. The hose 14 is of a fire-fighting hose type in which the inner surface of a tubular woven cloth is lined with rubber or the like, and is normally folded flat so that it cannot hold a cylindrical shape. Thus, one end of the hose 14 is connected to the water supply port 6, and the hose 14 is drawn out from between the both ends of the plate 13 of the winding floor 12 to the outside of the winding floor 12,
It is wound on the outer surface of the winding floor 12 in a flatly folded state. At this time, the hose 14 is preferably wound so that about 1/3 of the folded width overlaps with each other, as shown in FIG.

Action In the present invention, the winding floor 12 is always biased to the outer periphery of the groove 9 by the elastic force of the plate 13 and is restrained by the restraining portion 10. Therefore, as shown by the solid line in FIGS. 1 and 2, the hose 14 can be wound around the outer circumference of the winding floor 12, and the hose 14 can be appropriately wound without causing unnecessary looseness. .

Here, when water is supplied from the water supply hose 8 through the water supply path 5 and the water is sent into the hose 14, the hose 14 expands into a cylindrical shape as shown by a chain line in the drawing. Since the hose 14 has a very small extension in the longitudinal direction, it cannot be extended by water pressure, and when the hose 14 is expanded in a cylindrical shape in a spirally wound state, the inner circumference of the spiral expands inward. Therefore, in a usual winder, the hose cannot pass through water because it cannot swell inward or outward of the spiral. Since the hose 14 is movable from the outside, the diameter is reduced against the elasticity of the plate 13 by being pushed from the outside by the hose 14.

Therefore, the hose 14 reduces the rolling bed 12 by water pressure,
It can swell in a cylindrical shape and can pass water.

Further, the hose 14 expands so that the width of the hose 14 is reduced from the flat state to about 2/3. Therefore, as described above, even when the edges are wound so that the edges overlap with each other, they are properly swollen and aligned on the outer surface of the winding floor 12.

EFFECTS OF THE INVENTION According to the present invention, when the hose is not used, the hose 14 is wound in a state where the hose 14 has a flat cross section. However, the hose 14 is reduced in diameter by passing water. Can swell in a circular cross section, and can discharge water while the hose 14 is wound around the reel 2. Therefore, even when this is used as a water discharger for indoor or outdoor fire hydrants, it is not necessary to take out the hose from the fire hydrant box over its entire length or extend it before use, and the hose 14 is wound. Since it is possible to start water discharge in this state and run to the fire while pulling out the hose, even an inexperienced person can easily use it.

Further, since the fire hose type can be used as the hose 14, the hose can be light and have sufficient pressure resistance, and the workability is good.

In the water discharger of the present invention, the winding floor 12 of the reel 2 is a simple plate 13 made of an elastic material such as metal or hard plastic.
Since the plate 13 is bent into a cylindrical shape to form the winding floor 12, the structure is extremely simple, and the plate 13 has a reduced diameter due to its elasticity to facilitate the passage of water. The winding diameter of the hose 14 can be reduced, and the winding diameter reducing mechanism does not break down or operate properly.

Example In the above description, the winding bed 12 has the plate 13 curved in an annular shape and has a space between both ends thereof, but the both ends may be different from each other as shown in FIG. Further, as shown in FIG. 4, both ends are opened in a state where the winding bed 12 is expanded, and it is also possible to make both ends overlap by reducing the size. In this case, it is preferable to form a curved portion 13 'that bends inward at one end so that both ends can smoothly overlap.

In these cases, the hose 14 is attached to the plate 13 and the water inlet 6
It is necessary to provide a hole or a notch for reaching from the outer circumference to the outer circumference of the winding floor 12.

Further, in the above example, the restraining portions 10 and 11 of the reel 2 are formed as the outer circumference and the inner circumference of the annular groove 9 engraved on the surfaces of the flanges 4 and 4 which face each other. It is not limited to. FIG. 5 shows the suppression unit 10,
11 shows an eleventh embodiment in which concentric circular annular ribs 15 and 16 are formed on the surfaces of the flanges 4 and 4 which face each other, and the inner circumference of the annular rib 15 and the annular rib 16 are formed.
The outer peripheries of the two are referred to as a deterring part 10 and a deterring part 11, respectively.

Further, FIG. 6 shows another embodiment of the restraining portions 10 and 11, in which the hose 14 is formed by connecting the shaft 3 and the ring 17 formed on the outside thereof with a plurality of spokes 18. Double concentric rings 19 and 20 are fixed to the surfaces of the spokes 18 facing each other, and the inner periphery of the ring 19 and the outer periphery of the ring 20 are restrained by a restraining portion 10 and a restraining portion 11, respectively.
It is what

Further, in the example of FIGS. 1 and 2, the winding bed 12 may be simply fitted into the groove 9 as shown in the drawing,
The winding bed 12 is supported by the flanges 4 and 4 only by friction with the restraining portions 10 and 11, and if the reel 2 is heavily rotated, the winding bed 12 may rotate with respect to the flanges 4 and 4. Therefore, as shown in FIG. 7, a claw 21 is projected on a part of the side edge of the plate 13, and the claw 21 is loosely fitted in a through hole 22 formed in the bottom portion of the groove 9 so that the winding floor 12 is It is preferable to prevent rotation of the winding floor 12 with respect to the flanges 4 and 4 while permitting enlargement and reduction. Furthermore, it is more preferable to fit the pin 23 to the claw 21 to prevent the winding floor 12 from falling off the flanges 4, 4.

[Brief description of drawings]

1 and 2 show a water discharger of the present invention. FIG. 1 is a central longitudinal sectional view, and FIG. 2 is a sectional view taken along the line I-I in FIG. FIG. 3 and FIG. 4 are cross-sectional views showing an embodiment of the winding bed. FIG. 5 and FIG. 6 are vertical cross-sectional views of the main part showing an embodiment of the suppressing part. FIG. 7 is a vertical cross-sectional view of a main part showing an embodiment in a state of being fitted to the flange of the winding floor. 1 ...... Base 3 ...... Shaft 4 ...... Flange 7 ...... Main body 10, 11 ...... Restraint part 12 ...... Roll bed 13 ...... Plate 14 ...... Hose

Claims (1)

[Claims] 1. A flange (4, 4) is provided at both ends of a shaft (3) rotatably supported by a support (1), and the surfaces of the flange (4, 4) facing each other are provided. A concentric double annular restraining portion (10, 11) is formed, and an elastic plate (13) is curved in an annular shape to form a winding floor (12), and both ends of the winding floor (12) are formed. The suppression unit (10, 1
The hose (1) movably fitted in the radial direction of the flanges (4, 4) and along the outer restraining portion (10) and folded flat on the outer surface of the winding floor (12). 14)
Is wound, and one end of the hose (14) is connected to a water supply source through the shaft (3) and a rotary joint (7) provided at one end of the shaft (3).
Water discharge device