JP2001145704A - Portable liquid discharger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable fire extinguisher or other liquid discharger which can be carried by a fireman on his back with its weight properly dispersed to the shoulders and the lower back to be extremely easy to carry, and to let the fireman move easily. SOLUTION: The portable liquid discharger is formed so that it can be installed on the back side lower back part of a man, it comprises a hard container 3 including a pump 19 and a power source 20 to drive the pump 19, a soft water bag 2 to be carried on the back of the man, and a liquid discharging device 4 to discharge water in the water bag 2 through the pump 19, and when the man carries the water bag 2 on his back, a lower part of the water bag 2 is applied to the container 3 to be supported.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable water discharging device, and more particularly to a firefighter who puts a water bag filled with water on his back and extinguishes water by discharging water in the water bag with a small pump. And a portable fire extinguisher.

[0002] This type of portable fire extinguisher is used for carrying water, so the amount of water contained is limited and its fire extinguishing ability is not always great. It is widely used at the time, and shows its power.

[0003]

2. Description of the Related Art Conventionally, as a portable fire extinguisher of this kind,
What discharges water put in a water bag with a manual pump is widely used. In Japanese Utility Model Publication No. 2-4692,
A device that discharges water using a power-driven pump is described.

[0004]

However, in this type of portable fire extinguisher, a person must carry a water bag filled with a large amount of water and move on a steep slope without a road to the site of a wildfire. No, the effort was extremely enormous.

[0005] In the case of using a manual pump, the fire must be extinguished by operating the pump after moving to the site of a wildfire, and in the case of using a power-driven pump. In this case, the weight of the water bag is added to the weight of the pump and the engine that drives the pump, so that the labor for transportation is further increased.

In general, when a person carries a baggage on his / her back, he / she can easily carry the baggage by supporting the baggage such that the center of gravity of the baggage is high and close to the back of the person, and the weight of the baggage is supported by the waist. It is possible.

However, when water is poured into the water bag, the water bag is deformed due to the weight of the water and becomes inflated, so that the center of gravity is low and the rear is lowered. Moreover, since it is difficult to support the water bag whose shape is not stable with the waist, a large part of the weight of the water falls on the shoulder, and the firefighter carrying the bag feels extremely heavy.

In the apparatus disclosed in Japanese Utility Model Publication No. 2-4692, a heavy pump or engine is provided at the lower rear of the water bag, and the weight of the pump further pulls the shoulder backward and downward. For a firefighter carrying this, the structure feels heavier than the increased weight of the pump and engine.

Further, if a structure in which mechanical parts such as a pump and an engine protrude behind the firefighter's waist as in the device disclosed in the above publication is adopted, Tree branches and the like are caught by mechanical parts, impairing freedom of action, which is extremely dangerous.

The present invention has been made in view of the above circumstances, and provides a portable fire extinguisher in which when a firefighter carries his / her back, the weight is appropriately dispersed between his shoulders and waist, making it extremely easy to carry and act. It is intended to do so.

[0011]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a rigid container which can be mounted on the back of a person and has a pump and a power source for driving the pump therein, and is carried on the back of the person. A flexible water bag and a liquid discharging device that discharges water in the water bag through the pump, and in a state where a person is carrying the water bag, a lower portion of the water bag contacts the container. It is characterized by being supported.

In the present invention, it is preferable that a flexible partition wall is formed inside the water bag to partition the internal space to the left and right, and the partition wall has a tapered shape with a wide upper part and a narrow lower part. .

Further, in the present invention, a narrow portion is extended above the water bag, an inlet is formed at the upper end of the narrow portion, and the narrow portion is wound in a coil shape. Preferably, the entrance is closed.

[0014]

1 shows a portable fire extinguisher 1 according to the present invention.
2 is a water bag for storing water, 3 is a container having a built-in pump and a power source, and 4 is a water discharging device for discharging water in the water bag 2. is there.

The water bag 2 is, as shown in FIGS. 3 and 4,
A bag 5 made of a water-tight material such as a flexible tarpaulin is provided.

The bag 5 is formed in a bag shape by stacking two sheets 7a and 7b and joining their peripheral edges, and a narrow portion 8 extending upward is integrally formed on the upper portion of the bag 5. Extended,
Its upper end is opened to form an inlet 9. A water outlet 16 is formed in the lower part of the back side of the bag 5.

The injection port 9 is, as shown in FIG.
The front sheet 7b forming the narrow portion 8 is the back sheet 7
The extension 10 is formed to extend longer than the extension a, and a rubber magnet plate 11 is attached to the back of each of the extension 10 and the upper end of the backside sheet 7a.

The rubber magnet plate 11 of the extension portion 10 is provided above the upper end of the back sheet 7a at a distance corresponding to the thickness of the sheet 7a and the rubber magnet plate 11, and is provided on both sides of the space. A sealing material 12 is attached to the edge.

After opening the space between the two sheets 7a and 7b and injecting water into the bag body 5 from the inlet 9 formed therein, the extension portion 10 is bent backward and the rubber magnet plate 11 is bent.
Are stacked on each other and adsorbed, and the inlet 9 is closed. At this time, the sealing material 12 prevents water leakage from the side edge of the inlet 9.

Then, as shown in FIG. 3 (a), the sheets 7a, 7b
Was wound in a coil shape, and a rubber band 13, both ends of which were fixed to the front upper portion of the bag body 5, was wound around the narrow width portion 8 wound in a coil shape, and attached to the upper back side of the bag body 5. The hook 14 is hooked, and the rubber band 13 presses and holds the narrow portion 8 wound in a coil shape.

A partition wall 15 is provided inside the bag 5 to partition the space inside the bag 5 left and right. The partition wall 15 is made of the same flexible material as the sheets 7a and 7b, and connects the front and back sheets 7a and 7b. When the inside of the bag body 5 is empty, it is folded inside the bag body 5. I have.

In this example, two partition walls 15 are provided as shown in FIG. 4 to divide the empty space in the bag 5 into three, but this is only one. Or a large number of three or more may be provided.

In this embodiment, as shown in FIG. 3A, the partition wall 15 has a tapered shape with a wide upper part and a narrow lower part. Since the bag body 5 is flexible, the lower part is swelled by water pressure when water is poured into the bag body, so that the bag body 5 tends to be in a state of being swelled. Therefore, by forming the partition wall 15 into a tapered shape as described above, the gap between the sheets 7a and 7b is restrained so as to be narrow at the lower portion and wide at the upper portion.
Can be prevented from being inflated by the pressure of the water inside, so that the thickness of the bag body 5 can be made uniform throughout.

The container 3 is a rigid box made of metal or the like, and is attached to a belt 17 by an attachment 18 so that a firefighter can wear the belt 17 around the waist. I have. Alternatively, the container 3 may be attached to a waist belt worn by a firefighter.

In the container 3, a pump 19, a motor 20 as a power source of the pump 19, and
A dry battery 21 serving as a power supply for driving the motor 20 is accommodated.

Although a small engine can be used as a power source of the pump 19, it is difficult to start and stop the engine of the internal combustion engine, and a combustible material as fuel is brought to a fire spot. It is preferable to use an electric motor as a power source of the pump 19. As a power source for the motor 20, a lead storage battery is heavy and uses concentrated sulfuric acid, which is dangerous, and it is preferable to use a dry battery 21 which is simple and easily replaceable.

Reference numeral 22 denotes a water suction pipe of a pump 19, which is connected to a connector 24 which can be attached to and detached from the spout 16 of the bag body 5 through a hose 23. The water in the body 5 is sucked by the pump 19.

The water discharging device 4 includes a hose 25 connected to the water supply port of the pump 19 and a water discharging nozzle 26 attached to the end of the hose 25. The water discharging nozzle 26 and the motor 20 are connected to the hose 25. Are electrically connected by a cable 27 arranged side by side.

By operating a switch 28 provided on the water discharge nozzle 26, a valve in the water discharge nozzle 26 is opened and closed, and the motor 2 is connected via a cable 27.
0 is controlled to stop driving and control water discharge.

According to the present invention, the firefighter
Is attached to the back of the waist, and the water bag 2 is used while being carried on the back. In this state, the lower part of the water bag 2 contacts the upper surface of the container 3 and a part of the weight of the water bag 2 Are supported by the container 3.

[0031]

In order to use the portable fire extinguisher 1 of the present invention, a firefighter wraps the belt 17 around the waist, mounts the container 3 on the waist of the back, carries the water bag 2 on the back, and attaches the connector 24 to the water bag. 2
To the spout 16.

In this state, the inlet 9 of the water bag 2 is opened, and water is injected into the bag 5. At this time, if the bag 5 has the structure shown in FIGS. 3 and 4, it is preferable to inject water until the water enters the narrow portion 8.

The rear extension 10 is then bent rearward as shown by the dashed line in FIG. 3B, and the rubber magnet plate 11 is attracted to close the inlet 9. In this state, as shown by a chain line in FIG. 3A, the narrow width portion 8 is wound in a coil shape with the rubber magnet plate 11 as a core, and is pressed and held by the rubber band 13.

At this time, if water has penetrated into the narrow portion 8, when the narrow portion 8 is wound in a coil shape, the water is pushed into the bag 5, and the pressure in the bag 5 is reduced. The bag body 5 rises and swells sufficiently to its upper part.

Therefore, the bag 5 tends to be inflated due to the weight of the water when the water is simply poured, but the sheets 7a and 7b which have been inflated to the lower part by the inflation of the upper part of the bag 5 are increased. Is lifted upward, the bulge at the bottom is eliminated and the water is pushed up to a higher position,
The center of gravity increases.

Further, as shown in FIG. 3 (a), the shape of the partition wall 15 is tapered so that the upper portion is wide and the lower portion is narrow, thereby preventing the bag body 5 from being inflated and the center of gravity. Can be at a higher position.

When the bag body 5 is filled with water, the lower part of the water bag 2 contacts the container 3, and the container 3 supports a part of the weight of the water bag 2. Therefore, the weight of the water filled in the water bag 2 is supported by the firefighter's shoulder,
A part of it will be supported by the waist via the container 3,
Since it is supported by the shoulders and waist, it is extremely easy to carry and less fatigue.

When the fire reaches the fire spot, when the switch 28 is operated while holding the water discharge nozzle 26, the valve in the water discharge nozzle 26 is opened, and the motor 20 is driven via the cable 27 so that the pump 19 is operated. It operates to supply the water in the bag body 5 and discharge the water through the hose 25 to the water discharge nozzle 26.
Water.

Further, in accordance with the fire extinguishing condition, the switch 28 is operated, the valve is opened and closed, and the motor 20 is stopped, and the fire extinguishing activity is performed while controlling the water discharge from the water discharge nozzle 26. When the water in the water bag 2 is exhausted, return to the base and refill the water bag 2 with water as before, and further extinguish the fire.

[0040]

Therefore, according to the present invention, the container 3 is mounted on the waist of the firefighter, and a part of the weight of the water bag 2 carried on the back is supported by the firefighter's waist via the container 3, so that the shoulder Is greatly reduced, and the weight of the water bag 2 is distributed over the shoulder and the waist, so that the portable fire extinguisher 1 is extremely easy to carry and act on.

According to the second aspect of the present invention, since the tapered partition wall 15 is provided in the water bag 2,
Is not inflated by the weight of water, the center of gravity of the water bag 2 is at a higher position, and it is easier to carry.

Further, according to the third aspect of the present invention, unlike the conventional one in which a water supply port is opened at the upper rear side of the bag body 5, the upper part of the bag body 5 can be filled with water completely. Since no void is formed in the bag 5, the center of gravity becomes higher, and water does not sway and move in the bag body 5, making it easier to carry.

Further, by winding the narrow portion 8 in a coil shape in a state where water has entered the narrow portion 8, the water is pushed into the bag 5, and the bag 5 swells up to the upper portion and the sheet is expanded. 7a and 7b are lifted, the swelling of the lower part is eliminated, and the center of gravity is further increased, making it easier to carry.

Further, according to the present invention, heavy parts such as the pump 19 and the motor 20 are accommodated in the container 3 and are attached in close contact with the back waist of the firefighter. Will not be. In addition, since all of these weights are borne by the waist and do not rest on the shoulders, the burden on the shoulders that bear the heavier portion of the water bag 2 is greatly reduced.

Further, since the container 3 is in close contact with the waist of the firefighter and its upper part is covered with a large water bag 2, the mechanical portion does not greatly protrude backward as in the above-mentioned known example, and It does not get caught on a branch of a tree, etc.

In the present invention, the liquid contained in the bag 5 is discharged from the liquid discharging device 4 by the action of the pump 19, and is suitable as the fire extinguishing device. It can also be used for such purposes.

[Brief description of the drawings]

FIG. 1 is a side view showing a use state of the present invention.

FIG. 2 is a rear view showing a use state of the present invention.

FIG. 3 shows a water bag according to the present invention,
(A) is a central longitudinal sectional view, and (b) is an enlarged central longitudinal sectional view of an injection port.

FIG. 4 is a rear view of the water bag according to the present invention.

FIG. 5 is a central longitudinal sectional view of a container according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Portable fire extinguisher 2 Water bag 3 Container 4 Water discharger 8 Narrow part 9 Inlet 15 Partition wall 19 Pump 20 Motor

Claims (3)

[Claims] 1. A pump (19) which can be mounted on the back of a person and has a power source (2) for driving the pump (19).
(2), a flexible water bag (2) carried on the back of a person, and liquid discharge for discharging water in the water bag (2) through the pump (19). (4)
In a state where a person carries the water bag (2), a lower part of the water bag (2) is supported by being in contact with the container (3). apparatus 2. A flexible partition wall (15) is formed inside the water bag (2) to partition the internal space left and right, and the partition wall (15) has a tapered shape with a wide upper part and a narrow lower part. 2. The portable liquid discharging device according to claim 1, wherein 3. A narrow portion (8) is extended above the water bag (2), an inlet (9) is formed at an upper end of the narrow portion (8), and the narrow portion (8) is formed. 8) The injection port (9) is closed in a state of being wound in a coil shape,
The portable liquid discharging device according to claim 1.