KR101472159B1 - A Fire Extinguisher For Education - Google Patents

Abstract

Provide an educational fire extinguisher.
The present invention relates to a water treatment apparatus, comprising: a body capable of storing water or powder and compressed air therein; A head connected to the body and having a spray tube and an on-off valve; A discharging pipe provided inside the body and connected to the head inside the body so as to discharge water or powder and compressed air through the discharging pipe; And an operation lever operatively connected to the opening / closing valve of the head, wherein the head has a supplementary pipe connection portion connected to the supplementary pipe so as to replenish water or powder into the body, And a head connected to the spray tube is provided with a discharge delay portion having a sectional shape in which the discharge passage becomes narrower from the inlet to the outlet so as to reduce the discharge amount of water or powder filled in the body when the operation lever is opened.

Description

{A Fire Extinguisher For Education}

More particularly, the present invention relates to a fire extinguishing device for education, which is improved in head structure so that water and air can be injected at the same time, can use fire extinguishing powder for a long time, FIELD OF THE INVENTION

Generally, fire extinguishers are classified into various fire extinguishing agents depending on the fire extinguishing agents and mechanisms, which are fire-extinguishing devices that utilize the effects of fire extinguishing agents such as cooling or air shutoff in the early stage of fire.

Examples of fire extinguishers that are currently being used include fire extinguishers using sodium hydrogen carbonate, casein, gelatin, saponin, soda ash and aluminum sulfate, powder fire extinguishers using sodium hydrogen carbonate powder, Halon fire extinguishers using Halon 1211, Carbon dioxide fire extinguishers using carbon dioxide are widely known.

On the other hand, firefighting and disaster prevention education has been carried out from time to time in order to respond appropriately in case of actual fire. For this purpose, unlike general fire extinguishers, educational fire extinguishers have to be used repeatedly so that the structure of fire extinguishers is slightly different from that of general fire extinguishers. Especially, in order to prevent waste of fire extinguishing agents by repeated use, The use of fire extinguishing agents is required.

Water or air is the most suitable fire extinguishing agent that can be the most realistic alternative by this demand. Therefore, water or air is injected with fire extinguishing agent and it is used as educational fire extinguishing device.

1 shows a conventional fire extinguishing system according to the prior art. As shown in FIG. 1, a conventional fire extinguishing system for a school is formed in a cylindrical shape in which the inside of the body 10 is empty, It is formed of the same material as steel to withstand.

The body 10 of the fire extinguishing system is provided with an engaging portion 11 to which the head 20 can be fastened. The engaging portion 11 is provided with a flexible check valve 30 31, and the head 20 includes a spray tube 21 and an opening / closing valve 22.

A check valve 31 is connected to the coupling part 11 of the body 10 through a flexible connection pipe 30 so that compressed air can be injected into the body for storage. When the open / close valve is opened through the operation of the operating lever 40, the compressed air is supplied to the discharging hole of the discharging pipe (50) through the bidet valve (31) 51), and the compressed air creates a momentary low pressure in the injection pipe, causing water or powder to be sucked from the bottom of the injection pipe.

However, in the conventional educational fire extinguishing system, the connection pipe 30 is connected to the coupling portion 11 of the body 10 through the connection pipe fastening structure separately provided at the coupling portion at the upper end of the body, The entire body 10 must be replaced when the coupling tube fastening structure is damaged.

When the water or the powder is discharged through the spray tube 21 assembled to the head 20 when the operation lever 40 is opened by the operation of the operation lever 40, Therefore, there is a problem that the training time using the fire extinguisher for education is shortened.

In addition, when the operation lever 40 is operated, contact with the fulcrum portion formed on the head is unstable, so that it is very difficult for a user to grasp the operation lever while demonstrating the exercise fire extinguishing device while shaking by external force.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to improve a head structure to form a passageway for injecting water and air at the same time, thereby suppressing body damage, And to provide an educational fire extinguishing system capable of suppressing the flow of the handle as much as possible.

In order to achieve the above-mentioned object, the present invention provides a washing machine comprising: a body capable of storing water or powder and compressed air therein; A head connected to the body and having a spray tube and an on-off valve; A discharging pipe provided inside the body and connected to the head inside the body so as to discharge water or powder and compressed air through the discharging pipe; And an operation lever operatively connected to the opening / closing valve of the head, wherein the head has a supplementary pipe connection portion connected to the supplementary pipe so as to replenish water or powder into the body, And a discharge delay portion having a sectional shape in which the discharge passage is narrowed from the inlet to the outlet so as to reduce the discharge amount of the water or powder charged in the body when the operation lever is opened, And a fire extinguishing device is provided.

According to the present invention, a connection structure for connecting a supplementary connection pipe is formed by forming an injection passage capable of simultaneously injecting water and air into a head connected to the body, so that the body needs to be replaced when the connection structure is damaged It is possible to prevent the defective product due to the damage of the connection structure and to prolong the time for discharging the extinguishing powder filled inside the body to eliminate the inconvenience of recharging the extinguishing powder during education and to prevent the extinguishing of the extinguishing powder It is possible to reduce the maintenance of the facility while increasing the ease of use by suppressing the flow of the operation lever due to an external impact at the time of using the fire extinguishing apparatus as much as possible.

1 is a cross-sectional view of a conventional fire extinguishing system.
2 is an exploded perspective view showing an educational fire extinguisher according to an embodiment of the present invention.
3 is an exploded perspective view of a head included in an educational fire extinguisher according to an embodiment of the present invention.
4 is an external view showing an educational fire extinguishing system according to an embodiment of the present invention.
5 (a) and 5 (b) are cross-sectional views illustrating an internal configuration of an educational fire extinguisher according to an embodiment of the present invention.

Preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

The fire extinguishing system 100 according to the embodiment of the present invention includes a body 110, a head 120, a spray pipe 121, an operation lever 140, a discharge pipe 150, a supplement pipe connection unit 160, And a delay unit 170.

The body 110 is formed in a hollow cylindrical shape and is made of steel or the like to withstand the pressure of powder or compressed air charged therein.

The upper portion of the body 110 is provided with a coupling portion 111 having a female screw portion to be screwed with the male screw portion 129 formed at the lower end of the head 120.

The head 120 is assembled to be detachable on the top of the head and the head 120 is provided with a spray tube 121 and an on-off valve 122. The spray tube 121 is connected to the on- 122 to discharge the charged water or powder to the outside.

The on-off valve 122 functions to control the discharge of powder or water filled in the body 110, and is formed in the same manner as an on-off valve used in an actual fire extinguisher. The on / off valve 122 is vertically operated to open and close a flow path formed inside the head 120. When the on / off valve 122 is pressed downward, water or powder in the body 110 is discharged through the spray tube 121 Closing operation of the opening / closing valve 122 is operated by the operation lever 140, which will be described later.

The head 120 has a supplementary pipe connection part (for example, a one-touch coupler or a check valve) connected to the supplemental pipe so as to communicate with the internal space of the body and to replenish water or powder into the internal space of the body 110 160).

The supplemental pipe connection part 160 is opened by a supply pressure so that water or powder can be forcibly supplied at a relatively higher supply pressure than the internal space of the body 110 when the supplemental pipe connection part 160 is connected to a supplementary pipe And is automatically closed and sealed by the internal pressure of the body 110 when it is detached.

Accordingly, the contents can be quickly replenished through the supplementary pipe which is easily and easily coupled to the supplementary pipe connecting part 160 when water or powder is replenished for a long time in the educational fire extinguishing device.

The operation lever 140 includes an upper lever 141 assembled to a hinge hole of the head 120 via a hinge pin so as to be rotatable at one end thereof and contacting an upper end of the open / close valve 122, and a hinge pin And a lower lever 142 having a lower end inserted and fixed between the upper and lower fitting protrusions 123a and 123b formed on one side of the head 120. The lower lever 142 is fixed to the lower end of the head 120,

The lower lever 142 is sandwiched between the upper and lower fittings 123a and 123b formed on the arcuate surface so as to grasp the upper and lower levers of the operating lever at the same time, It is possible to prevent the malfunction of the fire extinguishing device due to the shaking when the operating lever is pressed and securely grasp the fire extinguishing by inducing the stable grip of the operating lever.

That is, the internal space of the body 110 is filled with extinguishing agent such as water or powder through the supplement pipe connecting part 160 of the head 120, and compressed air is introduced into the internal space of the body 110 It is made high enough pressure.

In this state, when the open / close valve 122 is opened through the operation of pushing the operating lever 140, the compressed air escapes through the open / close valve 122 and the discharge tube 121, (Or powder) is sprayed to the outside through the spray tube 121 while making a momentarily low pressure in the discharge tube 150 to make water or powder sucked from the bottom of the discharge tube.

Between the upper and lower levers 141 and 142, a safety pin 145 is provided to prevent a malfunction of the operation lever when the fire extinguisher is not used.

The discharge pipe (150) is connected to the lower end of the head (120) having the opening / closing valve and is composed of a cylindrical pipe member for guiding compressed air to the outside together with water or powder inside the body. The tube 150 is formed of a long cylindrical tube and has a funnel shape with an enlarged diameter so that an upper end thereof can be fastened to a lower space portion of the head 120. The tube 150 is coupled with a lower end of the head 120, do.

On the one side of the head 120 connected to the spray tube 121, on the one side of the head 120, the discharge amount of the water or powder filled in the body is reduced when the operation lever 140 is opened, And a discharge delay unit 170 having a cross section on which the passage is narrowed.

The discharge delay unit 170 includes a first flow path 171 having a cross-sectional shape in which the inner diameter gradually decreases in length from the inlet side to the outlet side, and a second flow path 171 having a constant length from the end of the first flow path, 172 and a third flow path 173 whose inner diameter gradually increases from the end of the second flow path to the outlet side.

Accordingly, in the process of discharging the contents such as powder or air inside the body through the discharge pipe due to the opening operation of the operation lever 140, since the amount of discharged water decreases while the contents pass through the first flow path, It is possible to extend the discharge time in which the contents are discharged in the inner space of the discharge space.

110: body 111:
120: head 121:
123a, 123b: Upper and lower fitting jaws 140: Operation lever
141: upper lever 142: lower lever
150: Discharge tube 160: Replacement tube connection
170:

Claims (1)

A body capable of storing water or powder and compressed air therein; A head connected to the body and having a spray tube and an on-off valve; A discharging pipe provided inside the body and connected to the head inside the body so as to discharge water or powder and compressed air through the discharging pipe; And an operation lever operatively connected to the opening / closing valve of the head, the fire extinguishing system comprising:
The head has a supplementary pipe connection part connected to the supplement pipe so as to replenish water or powder into the inside of the body, and a head connected to the injection pipe is provided with water or water filled inside the body when the operation lever is opened. A first flow path in which the inner diameter is gradually narrowed from the inlet side to the outlet side so as to reduce the discharge amount of the powder, a second flow path which is maintained at a constant length from the end of the first flow path to a constant inner diameter, And a third flow path whose inner diameter is gradually increased from the end portion to the outlet side of the discharge passage.

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