KR20160147605A

KR20160147605A - Fire nozzle

Info

Publication number: KR20160147605A
Application number: KR1020150104853A
Authority: KR
Inventors: 정재원
Original assignee: 정재원
Priority date: 2015-06-15
Filing date: 2015-07-24
Publication date: 2016-12-23

Abstract

The present invention is achieved by providing a nozzle installed at a distal end of a foam or powder fire extinguisher or fire hydrant to spray a fire extinguishing agent onto a fire point. The fire extinguishing nozzle is installed at the end of a foam or powder fire extinguisher or fire hydrant, Wherein the one end is connected to the end of the extinguisher and the extinguishing agent is introduced and the other end is formed into a hollow tubular shape in which the through holes through which the introduced extinguishing agent passes are radially arranged, And the other side is provided with a vent hole provided along the direction of ejection of the extinguishing agent on the circumferential wall which is gradually widened from the inside to the outside on the other side And a cone-type spraying guide pipe provided therein, As the spray guide tube goes in and out, the fire extinguishing agent can be selectively sprayed in a pulcon or hollow cone manner depending on the shape and distance of the ignition, and the range of the fire extinguishing agent can be increased.

Description

Fire nozzle

FIELD OF THE INVENTION The present invention relates to a fire-fighting nozzle provided at a distal end of a foam, powder fire extinguisher, or fire hydrant, and which extinguishes the fire extinguishing agent selectively in a pulcon or hollow cone manner according to the shape and distance of the fire.

In the case of a foam fire extinguisher, the sodium bicarbonate solution and the aluminum sulphate solution are mixed with each other, and the fire extinguishing agent is sprayed from the end of the hose connected to the foam, powder fire extinguisher or fire hydrant, The air bubbles are generated by the carbon dioxide and the aluminum hydroxide which are generated by the chemical reaction and ejected at the predetermined pressure, and the air supply is cut off, thereby achieving the desired evolution.

Such a fire-extinguishing nozzle has a cone shape, that is, a hollow cone shape having a predetermined length and gradually widened from the inside to the outside, and is provided at an end portion of the hose connected to the siphon in the fire extinguisher, so that the extinguishing agent is ejected in a pull-

In such a cone-shaped nozzle, the object of spreading and spreading to a possible ignition point upon ejection of the extinguishing agent is accomplished, but the ejection of the extinguishing agent is fixed at a constant level.

In other words, as described above, the inner surface of the nozzle moves from the inside to the outside, and the extinguishing agent is sprayed in a puller manner with a gradual gradient.

However, there has been a problem in that it is impossible to control the ejection of the extinguishing agent according to the distance or the ignition width of the ignition point, because the ejection distance or width of the extinguishing agent ejected through the nozzle is constant.

In addition, in a cone-shaped nozzle having a predetermined length, when a fire extinguishing agent is ejected, a vacuum is generated due to the fire extinguishing agent passing through the nozzle rapidly, a vortex is generated in the extinguishing agent and the ejection distance is reduced, thereby deteriorating the product performance of the fire extinguisher It is.

Recently, there has been a demand for development of a nozzle capable of increasing the ejection distance while allowing the ejection of the extinguishing agent to be selectively carried out by the full condensation method or the hollow cone method.

Domestic Utility Model Registration No. 344303

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a spraying guide pipe which is divided into a spray guide pipe for moving the nozzle forward and backward by taking a body and a body thereof, The fire extinguishing agent is ejected in a pulcon or a hollow cone manner, so that the fire extinguishing agent can be sprayed appropriately according to the ignition state, thereby suppressing the fire more quickly and effectively.

Another object of the present invention is to provide a fire-fighting nozzle capable of increasing an ejection distance of a fire extinguishing agent and improving productivity by having a vent hole for relieving a vacuum state that necessarily occurs when a rapid fire extinguishing agent passes through the fire- have.

Another object of the present invention is to provide a fire nozzle having a control element for controlling the rotational angle of the jet guide pipe in a stepwise manner, thereby making the use of the fire nozzle more convenient and effective.

The object of the present invention is achieved by providing a nozzle installed at a distal end of a foam, powder fire extinguisher or fire hydrant to spray a fire extinguishing agent to a fire point, and the fire extinguishing nozzle is provided at the end of a foam, powder fire extinguisher, A fire extinguishing agent spraying device for spraying a fire extinguishing agent to an ignition point, the fire extinguishing device comprising a body having a hollow tubular shape in which one end is continuously installed at the end of the extinguisher and the extinguishing agent is introduced and the other end is radially provided with through- One side of which is screwed on the other end of the body and is provided with an ejection hole for passing the extinguishing agent supplied from the body while moving back and forth while the other side is provided along the ejecting direction of the extinguishing agent on the circumferential wall gradually increasing from the inside to the outside And a cone-shaped ejection guide tube provided with ventilation holes , So that the ejection guide pipe having to select the fire extinguishing agent according to the type and distance of the ignition pulkon or a hollow cone spray and out of the way from the body In addition, to increase the range of fire-extinguishing medium.

According to the fire nozzle of the present invention, the fire extinguishing agent is ejected in a pull-on or a hollow cone manner while forward and backward of the ejection guide tube of the nozzle to spray fire extinguishing agent appropriately according to the ignition state, There is an effect that can be done.

Further, the present invention prevents an eddy phenomenon caused by a vacuum in the ejection guide pipe, thereby increasing the ejection distance of the extinguishing agent and enhancing the product quality.

Further, the present invention has a control element that controls the rotation angle of the jet guide pipe in a stepwise manner, so that the use of the fire nozzle is more stable and convenient.

1 is a perspective view showing a fire nozzle of the present invention.
2 (a) and 2 (b) are cross-sectional views showing the internal configuration of the fire-fighting nozzle of the present invention,
(a) is an explanatory diagram showing how the fire extinguishing agent is discharged in a pulcon manner.
(b) is a description showing how the fire extinguishing agent is discharged in a hollow cone manner
Degree.
FIG. 3 is an enlarged cross-sectional view taken along the line AA in FIG. 2; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Next, one embodiment of the present invention will be described concretely with reference to the drawings. 1 and 2 show a fire nozzle according to the present invention in detail.

The present invention provides a fire nozzle which is installed at the end of a foam or powder fire extinguisher or fire hydrant to spray the fire extinguishing agent to the ignition point.

The present invention is largely divided into a moving body 10 and a spraying guide pipe 20.

First, the body 10 has a hollow tubular shape with a front end closed and a rear end open, and one end is connected to the end of the fire extinguisher to introduce the extinguishing agent. The other end passes through holes 12 through which the extinguishing agent flows, Respectively.

One side of the ejection guide tube 20 is screw-engaged with the other end of the moving body 10 so that the ejection guide tube 20 rotates forward and backward, And the other side thereof is provided with a ventilation hole 24 which is provided along the venting direction of the extinguishing agent on the circumferential wall which is gradually widened from the inside to the outside and which allows the atmosphere to be introduced by the suction force by the ejection of the extinguishing agent . At this time, the ventilation holes 24 will dissolve the vacuum state generated in the ventilation guide pipe 20 by the inflow of air and prevent the vortex phenomenon, thereby increasing the ejection distance of the extinguishing agent.

A sealing member 30 for preventing leakage of the extinguishing agent is interposed between the body 10 and the spray guide pipe 20 while allowing the spray guide pipe 20 to move forward and backward. The hose 40 at the end of the fire extinguisher will be connected.

A grasping portion 26 is provided on one side of the outer wall of the spray guide tube 20 for grinding the surface thereof to increase the coefficient of friction so as to stably hold the spraying guide tube 20 in the forward and reverse directions for forward and backward movement Respectively.

A guide 25 for guiding air introduced into the vent hole 34 side at the periphery of the inlet side of the vent holes 24 of the vent guide pipe 20 is provided to guide the air guide to the vent hole 24 and the inflow amount Will increase.

The inner wall of each of the air vents 24 further includes a spiral 24a for rotating the air flowing into the air vents 24 to increase the flow velocity.

The inner wall of the spray guide pipe 20 is provided with spiral grooves 21 extending from the air holes 24 to the tip of the spray guide pipe 20 starting from the air holes 24. These helical grooves 21 rotate the extinguishing agent to be jetted to increase the flow velocity and jet range.

And further includes control elements 50 provided between the moving body 10 and the spray guide pipe 20 to control the rotation angle for forward and backward movement of the spray guide pipe 20 step by step.

3, the control element 50 includes slits 52 provided at predetermined intervals on the outer wall of the body 24 and along the longitudinal direction of the body 24, The elastic balls 54 are arranged in a radial line passing through the center of the body 24 from the wall and coming and going in and out of the slits 52 in a resilient manner. At this time, the slits 52 may be replaced by a hemispherical hole.

2 (a) and 2 (b) show a spraying device for spraying fire-extinguishing agent according to the present invention.

2 (a) shows a state in which the ejection guide tube 20 has entered the moving body 10, and shows a case where the extinguishing agent introduced from the moving body 10 is ejected in the ejection guide tube 20 in a pull- have.

2 (b) shows a state in which the ejection guide tube 20 is moved toward the moving body 10 as shown by the arrow in the figure, so that the extinguishing agent introduced from the moving body 10, And is ejected in the form of a paw.

The present invention is to selectively spray the extinguishing agent in the form of a full cone or a hollow cone according to the shape and distance of the ignition while moving the blowout guide tube 20 in and out of the body 10 as described above.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments.

10: body 12: through hole
20: spout guide pipe 22: spout hole
24: Vessel 24a: Spiral
25: Guide 21: Spiral groove
50: control element 52: slit
54: Elastic ball

Claims

A fire extinguisher, a fire extinguisher, a fire extinguisher, a fire extinguisher, or the like, to spray the extinguishing agent to the ignition point,
A body having a hollow tubular shape in which one end is connected to the end of the extinguisher and the extinguishing agent is introduced and the other end is radially provided with through holes through which the extinguishing agent flows; And
And the other side is provided with a spray hole which is screwed on one end of the body and passes through the extinguishing agent supplied from the body while moving back and forth while being extended from the inside to the outside on the other side, And a cone-shaped discharge guide pipe provided with ventilating holes arranged along the outer circumferential surface,
Wherein the fire extinguishing agent is selectively and spatially dispersed in the form of a full cone or a hollow cone according to the shape and distance of the ignition while the spray guiding tube is moved back and forth from the body.

The method according to claim 1,
Further comprising a guide for guiding air introduced into an inlet side of the vent holes.

The method according to claim 1,
And a spiral for rotating the air introduced into the inner wall of the vent hole.

The method according to claim 1,
Further comprising control elements between the body and the spray guide pipe for controlling the rotation angle for forward and backward movement of the spray guide pipe in a stepwise manner.

The method according to claim 1,
Further comprising spiral grooves for rotating the extinguishing agent sprayed to the inner wall of the spray guide pipe.