KR20150106080A - A Fire Extinguisher For Education - Google Patents

Abstract

The present invention relates to a fire extinguisher for education to allow the supply of water as a fire extinguishing agent of a fire extinguisher from a fire extinguishing water supply source such as a fire engine or a fire hydrant provided in a building to a plurality of fire extinguishers for education through a distributor. According to the present invention, the fire extinguisher for education includes: an external case having an internal space and a plurality of through-holes on the upper side and one side; at least one fire extinguisher for education placed in the through-hole on the upper side of the external case to take fire extinguishing water from the outside to inject the fire extinguishing water; a mixing part placed in the internal space of the external case to be connected to the fire extinguisher for education by a hose in order to mix the fire extinguishing water with compressed air; an air compressor connected to the mixing part by a hose to supply compressed air; and a connection hose part comprising a first connection hose to connect the fire extinguisher for education to the mixing part and a second connection hose to connect the mixing part to the air compressor. The fire extinguisher for education allows the high pressure injection of fire extinguishing water through an injection nozzle using the air compressor without an external high pressure fire extinguishing water supply source; and prevents the backflow of fire extinguishing water against low pressure with the installation of a check valve in a space between the external fire extinguishing water supply source and a mixer.

Description

{A Fire Extinguisher For Education}

The present invention relates to an educational fire extinguishing apparatus, and more particularly to an educational fire extinguishing apparatus capable of supplying water supplied from a fire extinguishing water supply source such as a fire hydrant provided in a building for a fire extinguishing agent to a plurality of educational fire extinguishers through a distributor will be.

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 put to practical use include foam fire extinguishers using sodium bicarbonate, casein, gelatin, saponin, soda ash and aluminum sulfate, powder fire extinguishers using sodium bicarbonate powder, Halon fire extinguishers using Halon 1211 , A carbon dioxide extinguisher where carbon dioxide is used, and the like 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, the education fire extinguisher is different from the general fire extinguisher, so it needs to be repeatedly used by the students. Therefore, the fire extinguisher structure is slightly different from the general fire extinguisher. Especially, to prevent waste of fire extinguishing agent by repeated use, The use of other extinguishing agents is required.

Water is the most suitable fire extinguishing agent that can be the most realistic alternative by this demand, and an educational fire extinguishing system with a water supply system that can continuously supply water to the educational fire extinguisher has been proposed.

As such an educational fire extinguishing device, Patent Publication No. 10-2010-0108045 discloses an extinguishing device capable of directly supplying high-pressure fire extinguishing water used for a fire extinguisher from a fire extinguishing water supply source such as a fire hydrant or a fire truck.

However, the conventional educational fire extinguishing system has a problem that fire extinguishing water such as a fire hydrant or a fire truck is provided and can be used by directly supplying high-pressure fire extinguishing water, which can not be used in places where there is no high-pressure fire extinguishing water.

In addition, when the general water supply is used instead of the high-pressure water, the supply pressure is lowered because the fire extinguishing water is supplied to the plurality of fire extinguishers through the distributor, thereby causing the fire water to flow back inside the fire extinguisher.

In order to solve the above problems, the present invention relates to an educational fire extinguishing system capable of compressing air at atmospheric pressure using an air compressor, mixing the water with water supplied through an extinguishing water supply pipe, and injecting the high-

 The present invention also relates to an educational fire extinguishing system capable of preventing backflow of fire water in the case of low pressure by providing a check valve between the external fire water supply source and the mixer.

In order to accomplish the above object, an educational fire extinguishing system according to the present invention comprises an outer case having an inner space formed therein and having a top surface and a plurality of through holes formed on one side; At least one educational fire extinguisher disposed at an upper surface through-hole of the outer case and provided to be able to receive and discharge external extinguishing water; A mixer provided in an inner space of the outer case and hose connected to the educational fire extinguisher to mix fire water and compressed air; An air compressor connected to the mixing portion to supply compressed air; And a connection hose including a first connection hose connecting the educational fire extinguisher and the mixing unit, and a second connection hose connecting the mixing unit and the air compressor.

Preferably, the mixing portion includes a mixing body body having an inner space formed therein, at least one through-hole formed in a side surface thereof, and an end portion of which is opened at one side, a body portion integrally coupled to the through- At least one compressed air inlet connection part integrally coupled to the through hole and having one end connected to one end of the second connection hose, and at least one compressed air inlet connection part integrally coupled to the open end side of the mixing part body, And a fire extinguishing water inflow connection portion to which one end of the third connection hose is connected.

More preferably, the mixing unit includes a first compressed air control valve provided at the compressed air inflow connection side to control the entry and exit of the compressed air introduced from the air compressor, and a second compressed air control valve provided at the inflow water connection side of the fire extinguishing water, And a fire extinguishing water control valve for controlling access to the fire extinguishing water.

Still more preferably, the mixing portion further includes a check valve provided at the inlet for connecting the fire extinguishing water to prevent backflow of fire extinguishing water supplied from the external fire extinguishing water supply source.

Preferably, the educational fire extinguisher includes a fire extinguisher body penetrating the fire extinguisher body, a connection pipe inserted into the fire extinguisher body and coupled to one end of the first connection hose, and a high- And an operation lever connected to one end of the spray tube and having an opening / closing valve therein, and an operation lever operatively connected to the opening / closing valve of the head part.

More preferably, the operation lever is provided with an insertion hole for inserting the safety pin, and a safety pin fixing member is provided between the insertion holes.

The educational fire extinguisher according to the present invention configured as described above has an effect that high pressure can be injected through the injection nozzle without using an external high-pressure fire extinguishing water supply source by using an air compressor.

In addition, there is an effect that a backflow prevention valve is provided between the external water supply source and the mixer to prevent backflow of the water for fire extinguishing even if a low pressure is generated.

1 is a perspective view of an educational fire extinguishing system according to the present invention;
Fig. 2 is a rear view of Fig. 1; Fig.
3 is an exploded perspective view of an educational fire extinguishing system according to the present invention;
4 is an internal configuration diagram of an educational fire extinguishing system according to the present invention;
FIG. 5 is a detailed view of a mixing part of the fire extinguishing system according to the present invention; FIG.
6 is an exemplary view showing an injection nozzle of an educational fire extinguisher according to the present invention;
7 is a perspective view illustrating a safety pin fastening structure of an educational fire extinguisher according to the present invention;
8 is an embodiment of a safety pin fixing member of an educational fire extinguisher according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of an educational fire extinguishing system according to the present invention, and Fig. 4 is an exploded perspective view of an educational fire extinguishing system according to the present invention. FIG. 6 is a view showing an injection nozzle of an educational fire extinguisher according to the present invention, and FIG. 7 is a view showing an internal configuration of an education fire extinguisher according to the present invention. And FIG. 8 is an embodiment of a safety pin fixing member of an educational fire extinguisher according to the present invention.

The educational fire extinguishing system 100 according to the present invention can be connected to a fire extinguisher provided in a building or a fire extinguisher such as a fire truck to supply fire extinguishing water to the educational fire extinguisher, So that water supplied from a fire hydrant or the like can be used as a substitute for a fire extinguishing agent instead of an expensive fire extinguishing agent.

1 to 5, an educational fire extinguishing system 100 according to an embodiment of the present invention includes an outer case 110, an educational fire extinguisher 120, a mixing unit 130, an air compressor 140, And a connection hose unit 150.

- an outer case (110)

The outer case 110 has an inner space S in which the mixing part 130 can be disposed therein and a fire extinguisher pedestal 111 in which a plurality of educational fire extinguishers 120 are inserted / And a door 112 is provided at one side of the front side so as to open and close the internal space S.

A plurality of through holes 110a are formed in the upper surface of the outer case 110 so as to communicate with holes (not shown) formed in a central region of the fire extinguisher holder 111, The hose 152 and the air compressor 140 may be connected to each other and a plurality of through holes 110b to 110d may be provided so that the third connection hose 153 and the mixing unit 130 can be connected.

The number of the through holes 110a and the number of the through holes 110b to 110d is equal to or more than the number of the educational fire extinguishers 120 disposed on the upper surface of the outer case 110, . That is, if two or four fire extinguishers 120 are disposed on the upper surface of the outer case 110, it is preferable that at least two or four or more through-holes 110a are provided.

The first and second connection hoses 151 and 151 are formed in the inner space S by providing a plurality of through holes 110a and through holes 110b to 110d communicating with the interior of the outer case 110. [ And one end of the first connection hose 151 is connected to the educational fire extinguisher 120 disposed on the upper surface of the outer case 110 through the through hole 110a and the other end of the first connection hose 151 (Not shown) such as a fire hydrant, a fire truck or the like to supply the fire extinguishing water to the educational fire extinguisher 120 side.

- mixing part (130)

The mixing unit 130 includes a mixing body 131, a discharge water discharge connection 132, a compressed air inflow connection 133, a fire water inflow connection 134, a first compressed air control valve 135 And a fire-fighting water control valve 136.

The mixing chamber body 131 has an internal space S1 formed therein. The water for fire extinguishing water supplied from an external water supply source (not shown) is primarily stored and mixed with the compressed air supplied from the air compressor 140 And supplies high-pressure water to the educational fire extinguisher 120 side. In addition, a plurality of through holes (not shown) are formed on the side surface to connect the fire extinguishing water discharge connection portion 132 capable of discharging the fire extinguishing water to the educational fire extinguishers 120 and the compressed air supplied from the air compressor 140 The air inlet connection portion 133 is integrally coupled.

On the other hand, one side of the mixing body 131 is opened and a fire extinguishing water inflow connection 134 to which fire extinguishing water is supplied is integrally coupled to the open end.

Preferably, the fire extinguishing water inflow connection part 134 is provided with a check valve 137 for preventing reverse flow of water that may occur when the inflow pressure of the fire extinguishing water supplied from the external fire extinguishing water supply source (not shown) is low. It is preferable to use a check valve as the check valve 137.

The first compressed air control valve 135 is a valve that can control the flow of the water from the air compressor 140. The first compressed air control valve 135 is a valve that can control the entry and exit of the extinguishing water flowing from an external water supply source Is a valve that can primarily control the inflow of compressed air. The fire extinguishing water control valve 136 is coupled to the outside through a through hole formed in one side of the outer case 110.

It is noted that the body case 139 may be further provided on the outside of the mixing body 131.

- air compressor (140)

The air compressor 140 is connected to one end of the second connection hose 152 and supplies compressed air to the mixing part 130. The pressure of the compressed water supplied to the mixing part 130 is increased Pressure fire extinguishing water so as to be sprayed to the outside through the spray pipe 123.

The connecting hose part 150,

The connection hose unit 150 includes a first connection hose 151 and a second connection hose 152. The first connection hose 151 connects the lower end of the educational fire extinguisher 120 and the fire extinguishing water discharge connection part 132 to allow the mixed fire water and the compressed air to be discharged in the mixing part 130, The hose 152 connects the compressed air inlet connection part 133 and the air compressor 140 so that compressed air can be introduced into the mixing part 130. Meanwhile, one end of the first connection hose 151 is fixedly coupled to the outside through a through hole of the outer case 110, and a second compressed air control valve 138 is additionally provided at an end protruding outward .

- Educational fire extinguishers (120)

The education fire extinguisher 120 according to the present invention differs from a general fire extinguisher used for filling water or other extinguishing agent inside and uses fire extinguishing water supplied from an external fire extinguishing water supply source (not shown) Pressure fire extinguishing water is sprayed by using compressed air by a high-pressure fire extinguisher 140.

Such an educational fire extinguisher 120 is inserted into a fire extinguisher support 111 provided on the upper surface of the outer casing 110 and is seated thereon. The fire extinguisher body 121 has an inside portion formed therethrough, And a connection pipe 122 connected to the connection pipe 122 and connected to one end of the first connection hose 151. The injection pipe 124 is provided with an injection nozzle 124 for injecting high- A head portion 125 connected to one end of the spray tube 123 and having an on-off valve 125a therein and an operation member operatively connected to the on-off valve 125a of the head portion 125, Lever 126 as shown in FIG.

The connection pipe 122 is connected to one end of the first connection hose 151 and the high pressure water to be supplied from the mixing part 130 through the connection pipe 122 at the operation of the operation lever 126 And is injected through the injection tube 123.

6 and 7, an injection nozzle 124 is provided at one end of the injection tube 123 to inject high-pressure water for fire extinguishment. The injection nozzle 124 is provided outside the injection nozzle 124, (123a).

The spray nozzle 124 is formed with a pipe 124a through which a fire extinguishing water can be discharged. The fire extinguishing water is discharged on the pipe 124a, And the fire-fighting water dispersion pin 124b is inserted so as to be dispersed widely.

The fire extinguishing water dispersing pin 124b has a shape in which two dispersing vanes 124b 'are symmetrically formed. When the extinguishing water is discharged, the vortex water is discharged along the flow path formed by the dispersing vane 124b' And the vortex water in which the vortex is formed is sprayed to a large area forward.

The operation lever 126 includes an upper lever 126a and a lower lever 126b and an insertion hole into which the safety pin 127 is inserted is inserted into the upper and lower levers 126a and 126b so that the operation lever 126 is not normally operated. And the operation lever can be operated by removing the safety pin at the time of use.

When the safety pin 127 is provided on the operation lever 126, a safety pin fixing member 128 may be provided between the insertion holes of the upper lever 126a. The safety pin fixing member 128 is formed to have a length substantially equal to the width of the upper lever 126a so as to be fitted between the insertion holes provided at both ends of the upper lever 126a, So that it is not forced to be able to exert an elastic force.

Such a safety pin fixing member 128 may be provided in a cylindrical shape as shown in FIG. 8A. That is, it is formed as a cylindrical shape as a whole, and is formed as an incision having a predetermined width from one end to the other end, and is made of an elastic member having an elastic force.

As shown in FIG. 8B, the safety pin fixing member 128 may be a coil spring. At this time, it is preferable that the pitch of the coils is provided so that the safety pin 127 does not protrude between the coils.

Such a safety pin fixing member 128 serves as a guide when the safety pin 127 is inserted into the insertion hole of the operation lever 126 so that the user can fasten the safety pin 127 easily and quickly, . ≪ / RTI >

At this time, the diameter of one end of the safety pin fixing member 128 is made larger than the diameter of the other end, so that the safety pin 127 can be held at one end so as not to be easily detached. As a result, the user applies a predetermined force to remove the safety pin 127, thereby confirming that the safety pin 127 is removed from the operation lever 126.

One end of the safety pin fixing member 128 may be soldered to the inside of the upper lever 126a to elastically move in the radial direction of the end surface of the safety pin 127, And the safety pin fixing member 128 may be inserted and coupled so that the safety pin fixing member 128 does not come off.

Hereinafter, the educational fire extinguishing system 100 according to the present invention is constructed as follows. One end of the third connection hose 153 is connected to a fire-fighting water supply source (not shown) such as a fire hydrant installed in a building or the like, To the fire-fighting water inflow connection 134 of the fire extinguisher 130.

The piping 154 connected to the air compressor 140 is connected to the second connection hose 152 protruded to one side of the outer case 110 and then the first and second compressed air control valves 135 and 138 are operated So that the compressed air can be introduced into the mixing part 130 and the fire extinguishing water control valve 136 is opened to supply the fire extinguishing water flowing into the mixing part 130 to the first connection hose 151 do.

At this time, when the operating lever 126 of the educational fire extinguisher 120 is pressed, the fire extinguishing water is sprayed through the spray pipe 123.

At this time, the extinguishing water to be sprayed passes through the extinguishing water dispersion pin 124b of the spray nozzle 124 to form a vortex, and is dispersed and discharged to the front face by the vortex formation.

An embodiment of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms.

Accordingly, such improvements and modifications are within the scope of the present invention as long as they are obvious to those skilled in the art.

100. Fire extinguisher for education 110. Exterior case
111. Fire extinguisher stand 120. Educational fire extinguisher
130. Mixing part 131. Mixing part body
132. Fire extinguishing water discharge connection 133. Compressed air inflow connection
134. Suction water inlet 135. First compressed air control valve
136. Fire-fighting water control valve 137. Anti-backflow valve
138. Second compressed air control valve 140. Air compressor
150. Connecting hose part 151. 1st connecting hose
152. Second connection hose 153. Third connection hose

Claims (6)

An outer case having an inner space formed therein and having a top surface and a plurality of through holes formed on one side;
At least one educational fire extinguisher disposed in an upper surface through-hole of the outer case and provided to be able to receive and discharge external extinguishing water;
A mixer provided in an inner space of the outer case and hose connected to the educational fire extinguisher to mix fire water and compressed air;
An air compressor connected to the mixing portion to supply compressed air; And
A connection hose configured by a first connection hose connecting the educational fire extinguisher and the mixing unit, and a second connection hose connecting the mixing unit and the air compressor. The method according to claim 1,
Wherein the mixing unit includes a mixing body body having an inner space formed therein and having at least one through hole formed in a side surface thereof and an end portion thereof opened at one side, a mixing body integrally coupled to the through hole, A first connection hose integrally coupled to the discharge port and one or more compressed air inlet connections connected to one end of the second connection hose and a second connection hose integrally coupled to an open end side of the mixing member body, And a fire extinguishing water inflow connection part to which one end of the fire extinguishing water inflow connection part is connected. 3. The method of claim 2,
The mixing unit includes a first compressed air control valve provided at the compressed air inflow connection side to control the entry and exit of the compressed air introduced from the air compressor and a second compressed air control valve provided at the inflow water connection side of the fire extinguishing water, Further comprising a water control valve. The method according to claim 2 or 3,
Wherein the mixing unit further comprises a check valve provided at the inlet for connecting the fire extinguishing water to prevent backflow of fire extinguishing water supplied from the external fire extinguishing water supply source. The method according to claim 1,
The educational fire extinguisher includes a fire extinguisher body penetrating the fire extinguisher body, a connection pipe inserted into the fire extinguisher body and coupled to one end of the first connection hose, a connection pipe connected to the connection pipe, A head part connected to one end of the spray tube and having an on / off valve therein, and an operation lever operatively connected to the opening / closing valve of the head part. 6. The method of claim 5,
Wherein the operation lever is provided with an insertion hole for inserting the safety pin, and a safety pin fixing member is provided between the insertion holes.

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