JPH06624B2 - 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 used for indoor or outdoor fire hydrants and the like.

A fire hydrant that has been widely used in the past is a fire hose with a rubber lining on the inner surface of a tubular woven fabric that is folded in a zigzag and stored in a fire hydrant box. Had to take the entire length out of the fire hydrant box and extend it, and if the hose was bent it would not be able to pass water, making it difficult for even an unfamiliar person to pass water.

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

In addition, these things, when winding the hose on the reel,
It was necessary to traverse the entire width of the reel and to wind adjacent hoses so as to overlap about 1/3 of the folded width of the hose, which made winding work difficult. That is, these hoses are normally folded flat and have a large folding width, and when water is passed, they are inflated into a circular cross section and the width is reduced, so if you try to wind the hose fully on the reel, it will be flat. It is necessary to overlap about 1/3 of the folding width, and if this overlap is inappropriate, the swelling condition of the hose will be uneven when passing water, and water cannot be passed properly.

The present invention has been made in view of such circumstances, and improves the basic principle of the invention while making use of the basic principle of the invention. The structure is simple and can be provided at low cost, and the hose can be easily wound. It is an object of the present invention to provide a water discharge device capable of reliably passing water through.

Means for Solving Problems The present invention rotatably supports a reel having a winding floor with respect to a support, and makes it possible to reduce or expand the winding floor of the reel at least at one end thereof in the radial direction. A hose that is flatly folded is overlapped and wound around the one end of the roll, the inner end of the hose is pulled out to the side of the reel, and a water supply source is provided through the rotation shaft of the reel. It is characterized by being connected to.

FIG. 1 shows 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 has a shaft 3 supported by the base 1, a rotary plate 4 integrally attached to one end of the shaft 3, and a rotary plate 4 of the shaft 3 integrally attached from the vicinity of the rotary plate 4 to the other end. It is composed of a rotating drum 5. A water supply path 6 is formed at one end of the shaft 3 along the central axis thereof, and is connected to a water supply port 7 formed on the outer periphery of the shaft 3, the water supply port 7 being the rotary plate. 4 is open to the outside. A water supply hose 9 is connected to the end of the water supply passage 6 via a rotary joint 8, and the water supply hose 9 is connected to a water supply source. Then, while rotating the reel 2, water can be supplied from the water supply hose 9 to the water supply port 7 via the water supply passage 6.

An annular groove 10 is formed on the surface of the rotary plate 4 facing the rotary drum 5, and the outer circumference and the inner circumference of each groove 10 form restraining portions 11 and 12, respectively. The width of the groove 10 is sufficiently larger than the thickness of the plate forming the movable winding floor 13 to be described later, and it is suitable to set the interval of the radius or diameter of the hose 14 to about the same.

Reference numeral 13 denotes a movable winding bed, which is formed by bending a plate made of an elastic material such as metal or hard plastic into an annular shape, and one side edge of the plate is fitted in the groove 10 of the rotary plate 4. In this state, the plates constituting the movable winding floor 13 are movable in the radial direction between the restraining portions 11 and 12 of the groove 10, respectively, and are cylindrically movable along the restraining portion 11 on the outer periphery of the groove 10. The winding floor 13 is formed.

The rotary drum 5 includes side plates 15 and 1 fixed to the shaft 3.
6 and a cylindrical fixed winding floor 17 attached to the outer periphery thereof. The fixed winding bed 17 has a small diameter on the side close to the rotating plate 4 and has a taper whose diameter gradually increases toward the other end, and the tip of the movable winding bed 13 is located outside the terminal on the small diameter side. There is a slight overlap. The movable winding floor 13 contacts the end of the fixed winding floor 17 when the diameter is reduced. In this state, the movable winding floor 13 and the fixed winding floor 17 form a continuous series of winding floors. Is formed.

The hose 14 is folded flat, and the movable winding floor 13 is provided.
Is wound around the end portion of the rotating plate 4 in contact with.
The inner end portion of the rotary plate 4 is shown in FIG.
Is obliquely drawn out to the outside and is connected to the water supply port 7.

Action In the present invention, the water supply hose 9 to the water supply passage 6 and the water supply port 7
When water is sent to the hose 14 via the water, the water is sent into the innermost hose 14a wound around the movable winding floor 13. At this time, since the innermost hose 14a obliquely enters from the side as shown in FIG. 2, water first enters the part 14b protruding from the winding part to the side as shown in FIG. This part swells. Then, water pressure is applied to the portion 14b to expand it further, so that the hoses 14c, 14d, 14e wound in the second and subsequent stages are pushed to the right in the figure to surround the innermost hose 14b. Get out of.

As a result, the outermost tightening of the hose 14a is released, the hose 14a can be inflated by water pressure as shown in FIG. 5, and the movable winding bed 13 moves inward along the groove 10. And reduce the diameter.

In this way, when the hose portion 14b swells in a cylindrical shape and is wound around the outer periphery of the hose 14c, 14d, 14e, ..., is pushed away to the side, the hose portion in front of it is newly wound. A portion 14b protruding from the hose is generated, water enters this portion, and the outer hose 14c, 14d,
14e …… Blows away while pushing sideways. The innermost part of the wound hose swells and orbits the movable winding floor 13.

When the swollen portion makes one turn around the movable winding floor 13, the wound hose 14 is moved to the side of the swollen hose 14a, and the hole 14c in the second stage is the innermost part. The same action occurs next to the already swelled hose 14a, causing the innermost (second stage at the beginning) hose 14c to swell and further hose 14d, 14
e …… Move sideways.

In this way, the hose 14 circulates around the movable winding floor 13 while swelling from the inside in sequence, then moves to the fixed winding floor 17 and circulates around the outer surface of the movable winding floor 13, and as shown by the chain line in FIG. From 13 to the fixed winding floor 17, over the entire winding floor,
The swelled hoses 14 having a circular cross section are arranged.

Further, as shown in the drawing, by tapering the winding bed formed by the movable winding bed 13 and the fixed winding bed 17, the hose 14 is wound in multiple stages, and the winding diameter is different between the inside and the outside. However, the hose will not be loosened and locally bent and the kink phenomenon will not occur because the hose is expanded to have a circular cross section at a position corresponding to the winding diameter.

Thus, the hose 14 thus expanded in a circular cross section
Water through the hose 1 wound on the reel 2
The water can be discharged from the tip of the cylinder attached to the tip of the nozzle 4, and the reel 2 can be rotated to draw out the hose 14 by a required length and water can be discharged at a distant position.

EFFECTS OF THE INVENTION According to the present invention, the fire hose type hose 14 that is flatly folded is used, and when it is not used, the hose 14 is wound while being flatly folded. It is possible to swell in a circular cross section for water flow, and to 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 a hose for fire-fighting can be used as the hose 14, the hose can be light and have a sufficient pressure resistance, and the work is easy.

Further, according to the present invention, since the hose 14 is simply wound and wound around one end of the reel 2, the hose 14
It is not necessary to consider an error between the folded width of the slab and the diameter of the swelled swell, and the winding can be performed very easily. In addition, even if the hose 14 is simply wound in this way, the hose 14 is naturally aligned along the surface of the winding bed by passing water, and water can be sent without any special operation. .

Embodiment FIG. 6 shows an embodiment of the present invention. In this embodiment, the rotary drum 5 is capable of expanding and contracting in its length direction. That is, the ring 17a forming a part of the fixed winding floor 17 is attached to the outer periphery of the side plate 15 integrally attached to the shaft 3, and the rings 17b and 17c are fitted to the outer periphery of the ring 17a. On the other hand, the side plate 16 is slidably provided along the length direction of the shaft 3, and a ring 17d is attached to the outer periphery thereof, and the ring 17d is fitted to the outer periphery of the ring 17c.

By sliding the side plate 16 toward the side plate 15, the fixed winding bed 17 becomes short and the reel 2 becomes compact, and by moving the side plate 16 along the shaft 3 toward the tip thereof. , Rings 17a, 17b,
A fixed winding bed 17 is formed by sequentially connecting 17c and 17d, and a hose 14 having a circular cross section is arranged on the outer periphery of the fixed winding bed 17 when water is passed therethrough in the same manner as described above.

In the above description, the roll bed is divided into the movable roll bed 13 and the fixed roll bed 17, and only the movable roll bed 13 can be reduced and expanded in the radial direction, but the structure is not limited to this. , May be integrated. In this case, the entire winding floor may be able to be reduced and expanded in the radial direction.

[Brief description of drawings]

FIG. 1 is a central longitudinal sectional view of the water discharger of the present invention. Second
FIG. 3 is a plan view of a main portion showing a wound state of the hose according to the present invention, and FIG. 3 is a sectional view taken along line III-III in FIG. 4 and 5 are III-III cross-sectional views showing a state in which the innermost hose swells when water is passed. Sixth
The figure is a central longitudinal cross-sectional view of a water discharger according to an embodiment of the present invention. 1 ... Base (support) 2 ... Reel 13 ... Movable roll bed 14 ... Hose 17 ... Fixed roll bed

Claims (4)

[Claims] 1. Roll bed (13, 17) with respect to the support (1)
Rotatably supporting the reel (2) having the reel (2), and at least one end portion of the winding bed (13, 17) of the reel (2) can be reduced and expanded in the radial direction and is constantly held in the expanded state. A flatly folded hose (14) is overlapped and wound around the one end of the winding floor (13, 17), and the inner end of the hose (14) is pulled out to the side of the reel (2) to form the reel (2). A water discharge device, characterized in that it is connected to a water supply source through a rotating shaft of 2. A movable winding bed (13) mounted on the one end of a reel (2) so as to be able to be reduced and expanded in the radial direction with respect to the reel (2), and the reel (2). And a fixed winding bed (1) fixedly provided in the fixed winding bed (1) in a state where the movable winding bed (13) is reduced in the radial direction.
7) The water discharge device according to claim 1, characterized in that it is continuous with the water discharge device. 3. The water spouting device according to claim 1, wherein the winding floor (13, 17) is expandable and contractable in the axial direction of the reel (2) except for the one end. 4. The outer surface of the winding floor (13, 17) has a small diameter at the one end and is tapered so that the diameter gradually increases toward the other end. Water discharge device according to item 1.