JPS631067B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tap water pressurizing fire pump that can be easily used in general homes, stores, offices, and the like.

In the case of a fire, it takes approximately 10 to 15 minutes for a fire engine to arrive after contacting the fire department, even in urban areas.
The initial fire extinguishing effect during this time can have a significant impact on subsequent fire extinguishing activities.

For this reason, it is desirable for ordinary people who discover a fire to extinguish the fire quickly and appropriately, i.e. in a timely manner, until the arrival of a fire engine.

However, there are currently only a limited number of fire extinguishing means that can be easily used by the general public, and they have not been able to fully satisfy the above requirements. For example, when discharging water from a waterworks, the distance of water discharge is only about 1 m at most, and even when the diameter of the outlet is reduced, the distance of water discharge is usually 4 to 5 m. Furthermore, even when a spray fire extinguisher is used, the spraying distance can only be about 3 to 5 meters, and the spraying time cannot be long. On the other hand, at the scene of a fire, humans instinctively have a certain fear of the burning flames, making it difficult for them to approach the flames.

Therefore, the current situation is that sufficient fire extinguishing activities cannot be carried out in the early stages of a fire.

The present invention has been made in view of the current situation. The purpose is to provide a tap water pressurized fire pump that can be easily used in homes, stores, offices, etc., and can be used to spray water from very far away. be.

The features of the present invention are such that the pump body is of a type that can be held close to the user's body, for example, the pump body is supplied with water from a normal water supply through a hose, and the lever for driving the pump body is operated with one hand. The main feature is that the pressurized water can be discharged far away from the water discharge nozzle of the pump body held with the other hand.

Hereinafter, one embodiment of the present invention will be explained in detail with reference to FIGS. 1 to 4.

In the figure, reference numeral 1 denotes a relatively small pump body that is sized to be held close to the user's body, for example. This pump main body 1 consists of a rectangular base plate 2 that faces the user's body when held in the body, a semi-cylindrical cover 3 that covers the top surface of this base plate and forms a pump chamber R inside, and a semi-cylindrical cover 3 that forms a pump chamber R inside. It includes a movable plate 4 that rotates about the center of the cylinder as a fulcrum.

As mentioned above, the base plate 2 is placed on the user's body side, and on the outside thereof, carrying means 5, 5 such as a shoulder belt used when carrying the user are provided on the top, bottom, left and right sides. The base plate 2 is not necessarily made of a single member, but also includes a plate-like structure, and in the case of this embodiment, there are water inlets 6 and A discharge port 7 is provided. A hose 9 from the water supply is connected to a water suction attachment part 8 that protrudes below the base plate of the water inlet 6, and a water discharge hose 9 that protrudes from the front above the base plate of the water outlet 7 is connected. A water discharge nozzle 12 having a hose portion 11 of appropriate length is connected to the mounting portion 10. In addition to providing the water inlet 6 and the water outlet 7 on the base plate 2, it is also possible to attach them to the cover 3.

Bearing portions 13, 1
3, and a rotatable shaft 14 is pivotally supported between the bearing portions 13, 13. In the inner part of the pump chamber R of the shaft 14, in this embodiment, the movable plate 4 is fixed to long plate-shaped support members 15, 15 fixed to the left and right sides of the shaft 14 with screws or the like. One end is attached. Further, one side end of rod-shaped levers 16, 16, which the user holds and rotates by hand, is fixed to a portion of the shaft 14 that projects outwardly from the left and right sides of the pump body 1. This lever 16, 16
The other end of the cover 3 has a length that slightly protrudes from the upper surface of the semi-cylindrical cover 3. Therefore, when the user holds the tip portions of the levers 16, 16 and moves them up and down, the movable plate 4 rotates within the pump chamber R around the shaft 14. still,
The movable plate 4 and the levers 16, 16 may be connected to each other as long as the movable plate 4 is rotated by operating the levers 16, 16, and is limited to a structure via the shaft 14 and the supporting members 15, 15. isn't it.

The movable plate 4, which is rotatably mounted in this manner, has an opening 17 with a relatively large diameter in the approximate center, and an opening 17 on the water outlet side of the movable plate 4.
A valve body 18 is attached to cover the valve body. When this valve body 18 receives water pressure from the water inlet side, it bends from its mounting portion, separates from the movable plate 4, and opens the opening 1.
In order to release 7, flexibility is required, and for example, it is made of a highly flexible material such as a rubber plate, a leather material, a thin metal plate, a plastic plate, etc. It should be noted that this valve body 18 may be configured to be separated from the movable plate 4 when receiving water pressure from the water inlet side, and the valve body 18 may be made of a flexible material as a whole, and may be made of a flexible material. It is also possible to use a flexible material only for one part and use a rigid body for the rest. In addition, valve body 1
When the entire opening 8 is made of a flexible material, when receiving water pressure from the water outlet side in the pump chamber R, the opening 1
In order to prevent deformation of the valve body itself covering the valve body 7 and to enable smooth operation of the valve body 18, it is preferable to provide a splint plate 19 having an area larger than at least the opening 17 on the water outlet side.

It is preferable to provide a check valve 20 on the water inlet 6 side to prevent backflow of water from inside the pump chamber R.

To extinguish a fire using the pump of the present invention configured as described above, the following steps may be taken.

First, a hose 9 from the water supply is connected to the water suction attachment part 8 of the pump body 1, and the user holds the pump body 1 in front of him, passes the left and right arms through the shoulder straps serving as carrying means 5, and carries it over his shoulder. Multiply by
Next, in this state, take the lever 16 with one hand (your right hand if you are right-handed) and move it up and down, and at the same time hold the water nozzle 12 with the other hand and point it at the burning area in the event of a fire. good. that way,
The water released reaches a distance of approximately 20 to 25 meters, making it easy to extinguish fires from a considerable distance.

The mechanism for operating the pump by the vertical movement of the lever 16 at this time is as follows. That is, when the lever 16 moves upward, water from the water supply is introduced from the water inlet 6 into the space A surrounded by the movable plate 4 in the pump chamber R and the cover 3 on the water inlet side. At this time, the tap water that had been stored in the space B surrounded by the movable plate 4 in the pump chamber R and the cover 3 on the water outlet side is transferred to the movable plate that rotates upward as the lever 16 rises. 4, the water becomes high-pressure water, passes through the water outlet 7, and is supplied to the water discharge nozzle 12 as described above. The pressurizing action at this time is due to the fact that the amount of water discharged from the water outlet 7 is small compared to the water compression area of the movable plate 4 whose opening 17 is closed by the valve body 18 . Therefore, by appropriately setting the area of the movable plate 4 and the diameter of the water outlet 7, it is possible to adjust the water discharge pressure, that is, the water discharge distance.

When the lever 16 is lowered downward, the movable plate 4 also rotates downward, and the valve body 1 receives water pressure from the water inlet side in the pump chamber R.
8 is separated from the movable plate 4 due to its own flexibility,
The opening 17 is opened and the tap water in the space A is moved to the space B side through the opening 17. In this case, space A
When the water pressure inside the space A increases and becomes higher than the water pressure of the incoming tap water, the water in the space A will flow back toward the water intake port, but this backflow is prevented by the check valve 20.
is prevented by Therefore, the lever 16 can be operated lightly and smoothly downward.

During the rotation of the movable plate 4 at this time, it is necessary for the water that has flowed into the space A to move smoothly into the space B in a short time.
It is desirable that the ratio between the diameter of the water intake port 6 and the diameter of the water intake port 6 (the diameter of a general water supply) be approximately 3:1.

In the above embodiment, one water inlet 6 is provided, but the present invention is not limited to this, and a plurality of water inlets 6 may be provided, and the size of the cross-sectional area of the water outlet 7 may be selected accordingly. It is also possible to increase the amount of water discharged or the distance of water discharged. Further, although the levers 16, 16 are provided so as to protrude forward from the sides of the pump body 1, it is also possible to change the levers so that they can be operated while carrying the pump body 1 on the back. Also, it can be used for both right-handed and left-handed people.
Although it is a book, it is also possible to make it a single book. Furthermore, in the above embodiment, the cover 3 is also integrally formed with semi-cylindrical left and right side plates.
The present invention is not limited to this, but also includes a case where the side plate is separately attached to a curved plate forming the front surface.

As explained above, according to the tap water pressurizing fire pump of the present invention, the pump body is of a type that can be carried on the user's body, and water is supplied to the pump body from a normal water supply through a hose. The drive lever is operated with one hand, and pressurized water is discharged from the water discharge nozzle of the pump body held with the other hand, which has the following effects.

(b) Anyone can easily handle it. That is, it is sufficient to put the shoulder belt over the shoulder, hold the pump body toward the user, and simply operate the lever up and down. Its operation is extremely simple. For this reason,
In the event of a fire, the extremely important initial extinguishing can be carried out quickly and appropriately, i.e. in a timely manner.

(b) Water can be sprayed at a sufficient distance. While conventional water supply systems could only spray water at a distance of about 1 m, and spray fire extinguishers could only spray water from about 2 to 5 meters, the pump of the present invention can spray water as far as 20 to 25 meters. In other words, water can be properly sprayed onto the combustion site from a considerable distance. Therefore, even an amateur user who has an instinctive fear of flames during a fire can fully use the device. From this point of view as well, timely initial fire extinguishment becomes possible.

(c) Also, since it is portable as mentioned above, by making the hose connected to the water faucet longer, the user can go to the roof, for example, where it is close to the combustion area and easy to extinguish the fire. possible, and the power of early fire extinguishing can be demonstrated everywhere.

(iv) In the event of a fire, power outages often occur immediately, but as mentioned above, the pump of the present invention is manually operated by moving the lever up and down, so it can be used without being affected by power outages. Furthermore, if there are two levers on the left and right, it can be used by either right-handed or left-handed people, and if one arm gets tired during operation, it is also possible to switch to the other arm.

(e) It also has the advantage of being simple and economical in structure.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the tap water pressurizing fire pump of the present invention, with Figure 1 being a perspective view showing the whole, and Figure 2 being a front view showing a partially cut away state. FIG. 3 is a vertical side view, and FIG. 4 is an explanatory diagram showing an example of a state of use. 1... Pump body, 2... Base plate, 3... Cover, 4... Movable plate, 5, 5... Portable means, 6...
Water inlet, 7... Water outlet, 16, 16... Lever, 17... Opening, 18... Valve body, R... Pump chamber.

Claims (1)

[Claims] 1. A carrying means consisting of a rectangular base plate, a shoulder strap attached to one side of the base plate, a semi-cylindrical cover that covers the other side of the base plate and forms a pump chamber inside, and A pump body is equipped with a movable plate that rotates around the center of a semi-cylindrical cylinder, and has a water inlet and a water outlet, and one end of the movable plate can be rotated by a lever provided outside the pump body. What is claimed is: 1. A tap water pressurizing fire pump, characterized in that the tap water pressurizing type fire pump is pivotally supported by the pump, has an opening in the center, and a valve body that covers the opening on the water discharge side in the pump chamber.