JP2544779Y2 - Fire hose car - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire hose car mounted on a fire truck and transporting a water discharge device to a fire occurrence site.

[0002]

2. Description of the Related Art Fire engines are used to supply water from a fire hydrant to a fire engine that is dispatched when a fire occurs. Workers extend fire hoses from the fire engine to the site of the fire and perform fire extinguishing activities by discharging water. It is loaded and transported on a hose extension machine called a hose car and extended near the fire occurrence site. At this time, the water supply hose that is connected to the pump outlet of the fire engine is sequentially extended to the other end via a connection fitting,
Finally, a fire extinguishing nozzle is connected to a water discharge hose provided at the tip.

[0003] A hose car is also equipped with a branch pipe as a relay for a fire-extinguishing hose. This branch pipe connects two water discharge hoses to one water supply hose, and performs water injection from multiple directions to aim at the early suppression of fire. In a conventional branch pipe, two sub-pipe bodies are connected to one main pipe body which forms a water supply joint part at an end portion via a crossing part, and an opening / closing valve and a water discharge joint part are connected to each sub-pipe body. Was provided.

[0004]

[Problems to be solved by the present invention] However, since the conventional branch pipe is provided as a single unit in the hose car, once connected to the fire extinguishing hose, it moves together with the hose,
There was a danger that even if you tried to connect another water discharge hose, the location would not be immediately known and might be confused. Also, the two sub-tubes are 3
Since it is relatively close to about 0 cm, there is a possibility that the connection of the water discharge hose and the opening / closing operation of the on-off valve may be mixed. Further, since the branch pipe is not fixed, it is extremely difficult to operate the on-off valve under high-pressure flowing water.

[0005] This invention solves the above-mentioned problems and connects a fire extinguishing hose without confusion even in a mixed situation at a fire site, and provides a branch pipe that can easily connect two water discharge hoses and operate an on-off valve. The purpose of the present invention is to provide a fire hose car for use.

[0006]

In order to solve the above-mentioned problems, a fire hose car for fire fighting according to the present invention includes a frame having a fire extinguishing hose and a branch pipe, a wheel for pivotally supporting the frame, and the frame. A fire hose car having a traction mechanism connected to a front part of the fire pipe, wherein the branch pipe has a water supply joint fixed to a rear surface of the frame opposite to the traction mechanism and branched via a crossing part. The body is provided with an on-off valve and a water discharge joint, respectively, the pipe from the intersection to the water discharge joint forms a bending angle equivalent to that of a non-reactional spear, and the water discharge joint is It is characterized in that it is fixed to the side of the frame in front of the wheel on the mechanism side.

[0007]

The fire hose car of the present invention is lowered from the fire truck and moves to the vicinity of the fire site using the traction mechanism. One end of the fire hose loaded in the frame is connected to the pump outlet of the fire engine, and the other end is connected to a water supply joint of a branch pipe fixed to the back of the frame. The branch pipes extend toward the traction mechanism side of the frame body. On-off valves are respectively attached to the two pipe bodies that branch through the intersection, and a water discharge joint formed at each pipe end is It is fixed to the side of the frame. A water discharge hose is connected to each water discharge joint to perform water injection from multiple directions. When performing independent water discharge, close one open / close valve.

[0008] Since the two water discharge joints are separately fixed to the side of the separated frame, the water discharge hose can be attached and detached at the same time, and the operation of the on-off valve is easy even under high-pressure flowing water.
Further, since the high-pressure running water from the intersection flows at the same bending angle as that of the non-reaction tube spear, the load for holding and fixing the tube is small.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic side view of the fire hose car of the present invention, and FIG. 2 is a schematic front view of the fire hose car without a traction mechanism. Fire hose car 1
, A traction mechanism 4 connected to a front portion of the frame 3, and a branch pipe 5 fixedly attached to the frame 3. The frame 3 has a bottom surface 3a, a pair of side surfaces 3
A pair of wheels 2, 2 are mounted via axles 2a, 2a having b, 3b, a front surface 3c and rotatably supported by bearings (not shown). In the frame 3, a plurality of water discharge devices such as fire extinguishing hoses 6 are mounted.

The branch pipe 5 has one main pipe 5a and two sub pipes 5b, 5b. A water supply joint 5c formed at the end of the main pipe 5a is connected to the bottom 3a of the frame 3. The main pipe 5a is fixed to the rear end, and the main pipe 5a is extended forward from the bottom 3a.
The main pipe body 5a which is started up at the front part 3c of the frame body 3 is Y
Left and right two sub-tubes 5b, 5b via a cross-shaped portion 5d
Branch to Each sub-tube 5b is provided with an on-off valve 5e composed of a ball cock and a joint 5f for water discharge. Each of the joints 5f for water discharge protrudes from the left and right side surfaces 3b of the frame 3 and is fixed. Each of the sub-tubes 5b extending from the intersection 5d to the on-off valve 5e has an L-shaped bend and is horizontal, and the bend angle is formed to be equal to that of a non-reaction tube spear described later.

Next, the operation of the fire hose car will be described.
When a fire engine fires and a fire engine (not shown) is dispatched and arrives near the fire site, the fire extinguishing worker supplies water to the tank of the fire engine from a fire hydrant, etc., while lowering the fire hose car 1 from the fire engine and towing the traction mechanism 4. And move to the fire site. Next, the fire extinguishing hose 6 loaded in the frame 3 is pulled out, one end is connected to a pump outlet of a fire engine as a water supply hose 6a, and the other end is a water supply joint 5c of the branch pipe 5.
Connect to

The water discharge hose 6b has a water discharge nozzle (not shown) composed of a pipe spear and a nozzle tip attached to one end, and the other end connected to the water discharge joint 5f. For the spear of the water discharge nozzle, a non-reaction spear having a bending angle capable of reducing the reaction force at the time of water discharge and holding it even under high pressure water discharge is used. This reactionless spear is a bend at the base of a hand-held spear.
Of the hose connecting the reaction force at the time of water discharge to the base of the spear
The reaction force is offset by the force trying to return to a linear
It has been reduced and made easier to hold. Its bending angle
Is the change in fluid pressure and velocity at the inlet and outlet of a curved tube
The force to float on the spear at the time of water discharge acts
It is an angle that makes it easy to hold, but specifically Tokyo
Firefighting Equipment Handbook, supervised by Fire and Disaster Management Agency
It is also described in Chapter 2 Water Discharge Equipment, 2.2 Pipe Reservoir
As you can see, in Japan, a 30 degree bend suitable for firefighting activities
Many angles are employed. At the time of water discharge, the degree of water discharge can be adjusted by adjusting the degree of opening and closing of the on-off valve 5e, or one of the on-off valves 5e can be closed to prevent a decrease in water pressure.

The water discharge hose 6b is connected by inserting a hose fitting 6c attached to the end into the water discharge joint 5f and rotating the tightening ring, but the two water discharge joints 5f, 5f are separated from each other. Since they are fixed, the work of attaching and detaching the respective water discharge hoses 6b, 6b can be performed simultaneously. Further, since the on-off valve 5e is fixed, the on-off operation can be easily performed even under high-pressure flowing water, and an appropriate water discharge pressure can be secured.
Further, the high-pressure running water from the intersection 5d flows through the sub-tube 5b having the same bending angle as the non-reaction pipe spear, so that the reaction load acting on the branch pipe 5 is small.

[0014]

[Effects of the Invention] As described above, the fire hose car of the present invention is fixed to the frame with the two water discharge joints of the branch pipe separated from each other. The hose for fire extinguishing can be connected immediately without any problem, and since the desorption operation of one does not affect the joint for water discharge, the hose can be easily switched. Further, since the on-off valve is fixed to the frame, the on-off operation is facilitated.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a fire hose car for fire fighting.

FIG. 2 is a schematic front view of the fire hose car for fire with a traction mechanism omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fire hose car 3 Frame 3a Bottom part 3b Side part 3c Front part 4 Traction mechanism 5 Branch pipe 5a Main pipe 5b Sub pipe 5c Water supply joint 5d Intersection 5e Open / close valve 5f Water discharge joint 6 Fire extinguishing hose 6a Water supply hose 6b Water discharge hose

Claims (1)

(57) [Scope of request for utility model registration] 1. A fire-fighting hose car having a frame provided with a fire-extinguishing hose and a branch pipe, wheels supporting the frame, and a traction mechanism connected to a front portion of the frame, wherein the branch pipe is provided. A water supply joint is fixed to the frame back surface on the opposite side of the traction mechanism, and a pipe branching through an intersection is provided with an open / close valve and a water discharge joint, respectively.
The pipe from the crossing portion to the water discharge joint has a bending angle equivalent to that of a non-reaction spear, and the water discharge joint is fixed to the frame side in front of the wheel on the traction mechanism side. A fire hose car for fire fighting.