JPS5826681Y2 - Fire extinguishing liquid discharge device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a liquid discharging device that can accurately aim at a target point and can evenly discharge a large amount of water, fire extinguishing foam, etc. within a certain range.

Conventionally, fire cannons that spray water, foaming liquid, liquid extinguishing agent, etc. (collectively referred to as extinguishing liquid) are used to fight fires, especially in so-called oil complexes where a large number of oil tanks are installed and oil tankers are docked. A liquid discharging device called a .

An example of such a device is found in Japanese Patent Application Laid-Open No. 53-59298.

The device is equipped with two forward-reverse rotation motors, and each motor automatically moves the gun barrel upward, upward, downward, and swivels, and if necessary, the linkage with the motor rotation axis can be released to switch to manual operation. It is possible.

However, in an actual fire, the target point for spraying liquid (such as the location where the fire is most intense or where the fire is about to move) constantly moves, and the above-mentioned prior art devices are unable to spray the liquid evenly over a certain area. Although convenient, it was not necessarily advantageous when it came to following the movement of fire or switching aim to the point of re-ignition.

The present invention provides a device that improves this point.

According to the invention, a support is fixed on a base and is provided with a conduit for the liquid to be discharged into the support; a conduit rotatably supported on the support and connected to the conduit in the interior; a movable body having a worm wheel fixed to; a curved conduit (hereinafter referred to as a curved pipe) connected to the conduit of the movable body;
a liquid discharge tube (hereinafter referred to as the gun barrel) connected to and rotatably supported on a vertical plane and having a worm wheel for moving the liquid discharge tube upward and downward; an electric motor mechanism fixed on the base; a crank mechanism that connects the output shaft of the electric motor mechanism and the movable body to reciprocate and rotate the movable body within a certain angle; a manual worm gear mechanism that engages with a worm wheel of the movable body; and a worm wheel of the gun barrel; A fire extinguishing liquid discharge device is provided having an engaging manual worm gear mechanism.

The feature of the device of this invention is that while the gun barrel is constantly oscillating within a certain angle range using an electric motor, the center point of the oscillation can be manually moved freely, and the angle of depression and elevation can also be changed. It is possible to follow the movement of the flame and quickly switch the aim to the point of re-ignition, and it is also possible to spray the liquid evenly over a certain area at all times. offered for the first time.

Next, one embodiment of the fire extinguishing liquid discharge device of this invention will be described in detail based on the drawings.

Fig. 1 is a side view, Fig. 2 is a back view, and Fig. 3 is a plan view. A conduit serving as a flow path is provided and extends from the support body 2, the movable body 3, the bent pipe 4, and the gun barrel 5.

The movable body 3 rotates around the support body 2.
installed on.

An arm portion 31 is provided to protrude from the side surface of the movable body 3, and a connecting rod 9 is connected to this arm portion 31.

The other end of the connecting rod 9 is connected to a crank pin 72 of a crank arm 73 fixed to an output shaft 71 of a reduction gear 7 that is linked to an electric motor, which will be described later.

The speed reducer 7 has a speed reduction mechanism section (worm gear and worm wheel) therein, and is connected to the electric motor 8.

The movable body 3 is provided with a worm wheel 61 and a worm gear 62 that constitute a turning mechanism, and a manual turning handle 6 is attached to the worm gear 62.

Note that the worm wheel 61 is fixed to the movable body 3, and the worm gear 62 is supported by a connecting arm 41 fixed to the upper curved pipe 4.

The bent pipe 4 provided on the upper part of the worm wheel 61 is attached so that it can turn together with the worm wheel 61, and by operating the turning handle 6, the bent pipe 4 can be turned 360 degrees.

Further, the curved tube 4 is provided with an elevating mechanism section 11 and an elevating handle 10 for elevating the gun barrel 5 up and down.

To explain the operation of the fire extinguishing liquid discharge device of this invention constructed as above, when the turning handle 6 is turned, the worm gear 62 rotates, and the curved pipe 4 rotates 360 degrees, so that the curved pipe 4 and the ffl] The gun barrel 5 connected via the mechanism part 11 can be set at any angle (direction).

At this time, a force is applied to rotate the movable body 3, but
Since the movable body 3 is connected to the worm wheel and worm gear that constitute the reduction mechanism section of the reducer 7 by the connecting rod 9, it does not rotate due to the self-locking of the worm gear and is fixed to the base 2. ing.

Next, when the electric motor 8 is switched on and the reducer 7 is operated, the output shaft 71 and the crank arm 73 rotate, the connecting rod 9 makes a reciprocating motion, and the movable body 3 rotates left and right along with the reciprocating motion. .

When the movable body 3 rotates, the bent tube 4 rotates together with the movable body 3 due to the self-locking of the worm gear 62 since the worm wheel 61 is fixed to the movable body 3.

As the movable body 3 and bent tube 4 rotate left and right in unison in this way, the gun barrel 5 automatically swings its head left and right.
Extinguishing liquid can be sprayed evenly over a certain extent of the extinguishing area.

Note that the reciprocating period of the connecting rod 9 is determined by the output shaft 71 of the reducer 7.
It is determined by the rotation speed of

Further, by changing the value of the distance l between the output shaft 71 and the crank pin 72, the amplitude angle α of the oscillation of the gun barrel 5 is determined.

Therefore, the value should be determined in consideration of the situation of the place where the fire extinguishing liquid discharge device is installed.

The elevation control of the gun barrel 5 can be performed by manually rotating the elevation handle 10 to freely swing the gun barrel 5 up and down.

As explained above, the fire extinguishing liquid discharge device of the present invention is
The rotating mechanism of the gun barrel 5 can be manually operated 360° around the entire circumference, and at the same time, it can be automatically rotated left and right continuously within a certain angle range, so the position and spread of the fire point can be adjusted. cannon barrel 5 with great agility and freedom against
In particular, it can easily and effectively extinguish fires in oil tanks, oil tankers, etc.

There is no need to describe the fabrication of the present invention in detail, as various construction techniques for the device of the present invention, including mutually rotatable connections of liquid conduits, are known in the art.

[Brief explanation of drawings]

FIG. 1 is a side view of one embodiment of the device of the invention, and FIGS. 2 and 3 are rear and top views, respectively, of the same embodiment. In these figures, 1: base; 2: support body; 3: movable body; 61: worm wheel of movable body; 4: curved pipe; 5:
Gun barrel; 11: Worm wheel of gun barrel; 71° 72.9
．． 31: Crank mechanism; 6, 62: Worm gear mechanism for movable body; Worm gear mechanism for 10 gun barrels.

Claims (1)

[Scope of utility model registration request] a support fixed on a base and provided with a conduit for a liquid to be discharged into the support; a conduit rotatably supported on the support and connected to the conduit inside; a worm fixed horizontally; A movable body having wheels; a worm wheel connected to a curved conduit (hereinafter referred to as a curved pipe) connected to the conduit of the movable body, rotatably supported in a vertical plane, and for causing the movable body to move upward and downward; a liquid discharge tube (hereinafter referred to as the gun barrel); an electric motor mechanism fixed on the base; and a crank that connects the output shaft of the electric motor mechanism to the movable body and rotates the movable body back and forth within a certain angle. A fire extinguishing liquid discharge device comprising: a mechanism; a manual worm gear mechanism that engages with a worm wheel of the movable body; and a manual worm gear mechanism that engages with a worm wheel of the gun barrel.