JPH0736675Y2 - fire hydrant - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a fire hydrant of the type in which a fire hose is stored in a storage box.

[Conventional technology]

As a conventional fire hydrant, suspend the bent parts of the fire hose folded in a meandering shape on each of the hose racks arranged in a comb shape inside the storage box to prepare for accidental fire fighting,
In some fire fighting activities, the fire hose was removed from each hose rack and the twist was removed to pull out to the water discharge site.

Also, as another conventional fire hydrant, a fire hose is wound around the reel attached to the storage box to prepare for accidental fire extinguishing activities, and when performing fire extinguishing activities, pull out the fire hose to pull out the fire hose from the reel. There was something I did.

[Problems to be solved by the device]

By the way, looking at the recent large-scale fire outbreaks in general buildings such as hotels and buildings, social welfare facilities, hospitals, etc., the inadequacy of the initial system, which makes it difficult to handle fire hydrants, has led to large-scale fires. There are many cases.

For example, according to the former of the above-mentioned fire hydrants, according to the former, it is troublesome to untwist the fire hose while unwinding it from the storage box, and the fire hose is pulled out without twisting the work completely. In some cases, water will be discharged from the water discharge nozzle. Also, the person who can pull out the fire hose to the water discharge place and work to correct the twist is limited to adult men who have strong power, and as a result, weak women and children are difficult to participate in fire fighting activities. there were.

On the other hand, in the latter, the reel rotates by pulling the fire hose and the fire hose is paid out, so it becomes relatively easy for women and children with weak power to carry out fire fighting activities. If the winding condition is bad or if the fire hose gets caught in the back of the reel, it cannot be delivered smoothly. In addition, the use of reels has a drawback that the structure is complicated and the price increases.

The present invention has been made in view of the above circumstances, and has a simple structure and can be configured at low cost, but with a small force from the storage box without twisting or biting the fire hose. It is an object of the present invention to provide a fire hydrant that is very light and can be smoothly fed out, and can be wound and stored and held in a storage box in a good and stable manner without causing a fire hose to wind around. .

[Means for Solving the Problems] In order to achieve the above object, the fire hydrant according to the first aspect of the invention has a state in which it is coiled or spirally wound around a water supply port inside a storage box whose front surface is open. A base end of a fire hose capable of retaining shape is connected, and a water discharge nozzle is connected to the tip of this fire hose.A wire rod is bent into a U-shape in plan view at the bottom inside the storage box. The lower frame member consisting of the frame and the pair of left and right hose receiving parts that are fixed to the middle connecting part of this frame with a space therebetween is fixed in a state where the frame is horizontal and the pair of hose receiving parts is inclined forward and upward. In addition, at the upper left and right positions inside the storage box, the engaging portions formed by bending the wire into an L-shape and an inverted L-shape when viewed from the front and the outer ends of the horizontal portions of the engaging portions are respectively at right angles. Left consisting of bent legs A pair of right upper frame members are provided on the back of the storage box at the end of each leg so that the engaging parts are arranged in front of the left and right shoulders of the fire hose to prevent the fire hose from tipping forward. A surrounding portion, which is fixed to the plate and is formed by the pair of left and right upper frame members and the lower frame member, is formed in a storage space of a fire hose wound in a coil shape or a spiral shape.

The fire hydrant according to a second aspect of the invention is the fire hydrant according to the first aspect of the invention, in which the water discharge nozzle is provided with an inner cylinder having a hose connection port and a taper portion and a packing that are concentrically arranged at the tip of the inner cylinder. And an outer cylinder that has an inner flange-shaped valve portion corresponding to the taper portion and the packing and has a screw portion that is fitted into the inner cylinder so as to be movable back and forth in the cylinder axis direction. From the water discharge state in which the inner collar-shaped valve portion of the outer cylinder is separated from the packing, when the outer cylinder is rotated to advance the outer cylinder in the cylinder axial direction, water is released by wide-angle water discharge through the tapered portion. After the spraying state, the valve section is configured to be switched to the water discharge stopped state in which the valve section is in close contact with the packing.

[Operation] According to the first invention having the above-described configuration, a fire hose is wound in a coil or a spiral shape in a surrounding portion formed by a pair of left and right upper frame members and a lower frame member, that is, a storage space. When rotated and stowed, the lower end of the wound fire hose is received by the pair of right and left hose receiving parts that are inclined forward and upward on the lower frame member, and the lower end of the hose will not accidentally fall forward. , L-shaped and inverted L-shaped engaging portions of the pair of left and right upper frame members are arranged in front of the left and right shoulders of the fire hose around which the upper portion of the fire hose is prevented from falling forward. It This makes it possible to wind up and hold the fire hose in the storage box very stably, and by pulling the wound portion inside the fire hose from such a wound state, the fire hose It is possible to take out smoothly.

According to the second invention, when water discharge is no longer needed,
By rotating the outer cylinder that constitutes the water discharge nozzle and advancing the outer cylinder in the cylinder axis direction, instead of switching from the water discharge state to the water discharge stop state all at once, the water spray state is once passed through the wide angle water discharge and then the water discharge stop is performed. Since it is possible to switch to the state, it is possible to gradually stop the water flow in the fire hose without abruptly stopping the water flow in the fire hose, and suppress the occurrence of vibration of the fire hose due to the water hammer effect.

[Embodiment] FIG. 1 is a front view showing the inside of the fire hydrant, and FIG. 2 is a longitudinal sectional view showing the inside of the storage box with the door closed.

The storage box 1 is a thin type with an open front surface, and may be embedded in a wall of a building or attached to a wall surface. The storage box 1 is generally equipped with a panel box 2 equipped with a push button and an alarm device for reporting a fire. The door 3 is attached to the side end of the storage box 1 so as to be openable and closable about the vertical axis, and the opening angle is set to 180 degrees or more. Reference numeral 4 is a door of the panel box 2.

Inside the storage box 1, a lower frame member 5 and a pair of left and right upper frame members 6 are provided.
And are provided. The lower frame member 5 includes a frame 51 formed by bending a high-strength metal wire rod such as a steel rod into a U-shape in a plan view, and a high-strength steel rod such as a steel rod fixed to an intermediate connecting portion of the frame 51 at intervals in the longitudinal direction. The back plate of the storage box 1 is composed of a pair of hose receiving portions 52, 52 made of strong metal wire, the frame 51 is horizontal, and the hose receiving portions 52, 52 are inclined forward and upward. It is fixed to the lower end of 11. Further, the pair of left and right upper frame members 6, 6 are engaging portions 61, 61 formed by bending a high-strength metal wire rod such as a steel rod into an L-shape and an inverted L-shape when viewed from the front, and the engaging portions 61, 61 horizontally. The legs 62, 62 are formed by bending the outer ends of the parts at right angles, and the engaging parts 61, 61 are arranged in front of the left and right shoulders 71, 71 of the fire hose 7. The ends of the legs 62, 62 are fixed to the upper end of the back plate 11 of the storage box 1 so as to prevent the fire hose 7 from falling forward. A surrounding portion formed by the lower frame member 5 is formed in the storage space S of the fire hose 7 which is wound in a coil shape or a spiral shape.

A base end portion of the fire-fighting hose 7 is connected to a water supply port of an opening / closing valve 8 installed in the storage box 1, and a water discharge nozzle 9 is connected to a tip end portion thereof. This fire hose 7 is capable of retaining its shape in a coiled or spirally wound state. As such a fire hose 7, there is a cloth rubber or resin tube such as a spiral rubber hose, a jacket rubber hose, and a jacket hose which is lightweight and has a high shape retention property, and a metal core or a resin core is embedded in the tube.

During non-fire extinguishing activities, the fire hose 7 is a storage space S formed by the lower frame member 5 and the upper frame members 6 and 6 in a coiled or spirally wound state as shown in FIGS. 1 and 2. The water discharge nozzle 9 is leaned against the innermost winding portion. That is, the fire hose 7 wound in a coil shape or a spiral shape is used as the pair of hose receiving portions 5 of the lower frame member 5.
It is mounted on 2,52 to prevent the fire hose 7 from slipping off, and the left and right shoulders 71,71 of the fire hose 7
The engaging portions 61, 61 of the upper frame members 6, 6 are arranged on the front surface of the engaging portion.
61, 61 prevent the fire hose 7 from falling forward.

When the water discharge nozzle 9 or the tip portion of the fire hose 7 is pulled during fire fighting activities, the fire hose 7 is sequentially fed out from the inner winding portion. In this way, the fire hose 7 is pulled out from the storage space S, the water discharge nozzle 9 is brought to the water discharge place, and the opening / closing valve 8 is opened to discharge water. When the fire-fighting hose 7 is fed in this way, no matter which direction the fire-fighting hose 7 is pulled, it can be smoothly fed with a very small force.

Further, the fed-out fire hose 7 is wound in a coil shape or a spiral shape from the outer side to the inner side while being stored in the storage space S.
Stored in.

The water discharge nozzle 9 is illustrated in FIG. The water discharge nozzle 9 includes an inner cylinder 92 having a hose connection port 91, a conical core body 94 provided concentrically with the inner cylinder 92 at the tip of the inner cylinder 92 via a plurality of flow rectifying blades 93, and a core. Tip fitting 95 screwed to body 94
And an outer cylinder 97 fitted to the inner cylinder 92 via a screw portion 96 and having a rubber grip 97a fixed to the outer peripheral portion thereof, and the packing 98 and the taper portion 99 are provided on the tip fitting 95. On the other hand, the outer cylinder 97 is provided with the inner collar type valve portion 100 corresponding to the packing 98 and the tapered portion 99. A packing 101 and a strainer 102 are provided at the hose connection port 91.

In the water discharge nozzle 9, when the outer cylinder 97 is rotated in the forward direction, the outer cylinder 97 is retracted by the action of the screw portion 96 and the valve portion 100 is gradually separated from the packing 98, while the outer cylinder 97 is rotated in the reverse direction. The outer cylinder 97 advances in the direction of the arrow in FIG. 3, the valve portion 100 gradually approaches the packing 98, and finally the valve portion 100 comes into close contact with the packing 98. FIG. 3 shows a case where the outer cylinder 97 is retracted and is switched to a water direct injection state in which a rod-shaped water discharge state is obtained. When the outer cylinder 97 is moved forward from this state, the valve portion 100 will always face the taper portion 99 as shown by the imaginary line immediately before the valve portion 100 comes into close contact with the packing 98 and is switched to the water discharge stopped state. It switches to a water spray state where water is sprayed at a wide angle. In other words, when the water discharge state is switched to the water discharge stop state, the water flow is switched to the water discharge stop state immediately after the water spray state, so that the water flow inside the fire hose 7 is gradually stopped, and the water flow is suddenly increased. It does not have the water hammer effect that occurs when it stops. Therefore, even if a part of the fire hose 7 is stored in the storage space S and then the water is stopped after the water is discharged, the fire hose 7 vibrates due to a water hammer action and loosens or jumps out of the storage space S. This prevents situations such as accidents. Such an action is not limited to the water discharge nozzle 9 having the structure shown in FIG. 3, and can be switched between a water discharge stop state, a water spray state, and a water direct exposure state, and when the water discharge state is switched to the water discharge stop state. Is achieved by using a water discharge nozzle configured to switch to the water discharge stop state immediately after passing through the water spray state.

[Advantages of the Invention] As described above, according to the first invention, the structure is such that the reel is not provided in the storage box, the structure is simple and the cost is low, and The pair of upper and lower frame members can be wound and stored very stably without slipping off or tipping forward, and a small force without twisting or biting. With this, even women and children with weak power can easily participate in fire-fighting activities and enhance their initial response system. In addition, since the fire hose is directly guided from the storage box during fire fighting activities, there is no adverse situation in which reels or the like stick out into a passageway such as a corridor and interfere with fire fighting activities or evacuation activities.

Further, according to the second invention, when the water discharge is stopped, the water flow inside the fire hose is gradually stopped, so that the vibration of the fire hose due to the water hammer action is unlikely to occur, and the fire hose remains stored in the storage space. It is possible to prevent the fire hose from becoming loose and jumping out of the storage space.

[Brief description of drawings]

FIG. 1 is a front view showing the inside of a fire hydrant according to an embodiment of the present invention, FIG. 2 is a vertical sectional view showing the inside of a storage box with a door closed, and FIG. 3 is a partial sectional view of a water discharge nozzle. . 1 ... storage box, 5 ... lower frame member, 6 ... upper frame member, 7 ...
… Fire hose, 9… Water discharge nozzle, 61 …… Engagement part, 71
…… Shoulder of fire hose, 91 …… Hose connection port, 92 ……
Inner cylinder, 95 …… Tip fitting, 96 …… Screw part, 97 …… Outer cylinder, 98
…… Packing, 99 …… Tapered part, 100 …… Valve part, S ……
Storage space.

Claims (2)

[Scope of utility model registration request] 1. A base end portion of a fire hose capable of holding a shape in a coiled or spiral shape is connected to a water supply port inside a storage box having an open front, and the fire protection A water discharge nozzle is connected to the tip of the hose for use, and a frame formed by bending a wire rod into a U-shape in plan view and a pair of left and right hoses fixed to the middle joint part of the frame at a space at the bottom inside the storage box. The lower frame member including the receiving portion is fixed to the frame so that the frame is horizontal and the pair of hose receiving portions are inclined forward and upward. A pair of left and right upper frame members each of which includes an engaging portion bent into an L shape and an inverted L shape as viewed, and legs formed by bending the outer ends of horizontal portions of the engaging portion at right angles. Each engaging part is placed on the front of the left and right shoulders of the above fire hose. The fire hose is secured to the back plate of the storage box at the end of each leg so as to prevent the fire hose from falling forward, and the surrounding portion formed by the pair of left and right upper frame members and the lower frame member is a coil. A fire hydrant, which is formed in a storage space of a fire hose wound in a spiral or spiral shape. 2. The fire hydrant according to claim 1, wherein the water discharge nozzle is an inner cylinder having a hose connection port, a tip fitting concentrically arranged at a tip portion of the inner cylinder and having a taper portion and a packing which are divergent, and It is composed of an outer cylinder that has a taper part and an inner collar-shaped valve part corresponding to the packing, and is fitted through the screw part so that it can move forward and backward in the axial direction of the cylinder. When the outer cylinder is rotated to advance the outer cylinder in the cylinder axial direction from the water discharge state in which the valve portion is separated from the packing, the valve is passed after a water spray state by wide-angle water discharge through the taper portion. A fire hydrant, characterized in that the part is configured to be switched to a water discharge stopped state in which the part is in close contact with the packing.