KR102086593B1 - Fire extinguisher for fire education - Google Patents

Abstract

A water extinguisher for fire education according to an embodiment of the present invention comprises: a head unit having a spray pipe through which extinguishing water, where water and compressed air are mixed, is sprayed, and an operating lever connected to the spray pipe; a body unit having a flow path pipe for supplying extinguishing water to the injection pipe inside, a receiving space having a set size for receiving water and compressed air, and an injection port located in the lower side of the body unit so that water and compressed air are injected into the inner receiving space of the body unit; and a fire extinguisher main body including a support unit coupled to a lower portion of the body unit, wherein the flow path pipe may be provided with at least one hole connecting the inner receiving space of the body unit and the interior of the flow path pipe.

Description

Fire extinguisher for fire education {FIRE EXTINGUISHER FOR FIRE EDUCATION}

The present invention relates to a fire extinguisher for fire education, and more specifically, to children, such as kindergarten or elementary school students, and vulnerable groups including the disabled and the elderly, to the general public to safely experience a fire response situation based on a realistic environment. It's about a fire hydrant that allows you to

In elementary school and preschool children, the lack of knowledge and experience in fire can provide the cause of fire unconsciously in the living environment. Even in the event of a fire, they lack the ability to cope with a fire accident, so it is important to be aware of the dangers of a fire accident through hands-on learning in a situation similar to the real world, and to acquire the knowledge necessary to cope with a fire accident.

In general, fire safety education is aimed at children such as kindergarten or elementary school students, vulnerable people including the disabled and the elderly, and the general public in order to prevent fires in advance and respond quickly in case of emergency. It aims to prevent damage.

In most cases, however, the general knowledge of fire is indirectly learned through books, video materials, computers, etc., rather than by learning about fire accidents.

On the other hand, fire fighting training refers to training for trainees in order to effectively cope with accidents and fire extinguishing that may occur in a fire.

Firefighting drills are conducted repeatedly in evacuation drills and fire drills to effectively respond to the actual fire site. In addition, training on the use of fire extinguishers is essential.

However, educational fire extinguishers are generally provided in actual buildings and sites, and have a slightly different form from the fire extinguishers used in a fire accident.

For example, educational fire extinguishers are used to allow the trainees to repeatedly experience and learn, unlike general fire extinguishers, and do not need to use expensive fire extinguishing powder like general fire extinguishers, and use water instead. However, nevertheless, water consumption is inevitably increased due to long-term repeated use of the educational fire extinguisher, which causes unnecessary waste.

As a prior art related to the present invention, there is Republic of Korea Patent Publication No. 10-1950955, which discloses a fire safety education system. The fire safety education system disclosed in the prior literature includes an educational fire extinguishing device. The educational fire extinguishing apparatus disclosed herein includes an educational fire extinguisher and a fire extinguishing water supply unit. In particular, the fire extinguishing water supply unit is configured to supply the extinguishing water, that is, water, to the educational fire extinguisher through the pump, and the water sprayed through the educational fire extinguisher is drained to the bottom and then collected and reused.

Patent Application No. 10-2019-0001502

An object of the present invention, through the fire extinguisher for education using the water mixed with compressed air instead of fire extinguishing powder to produce a safer and more realistic situation to fire and fire extinguishers can be used to experience and education In providing.

An object of the present invention, by using a mixture of high-pressure compressed air while using water without the use of fire extinguishing powder, to facilitate the spray action of water, to prevent backflow of water, and to reduce the amount of water used to reduce costs It is to provide fire hydrant for fire education.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned above can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

The present invention for achieving the above object is a head portion having a spray pipe for injecting the digestion water mixed with water and compressed air, and an operating lever connected to the spray pipe, and a flow path for supplying the extinguishing water to the spray pipe The tube is provided on the inside, provided with a receiving space of a predetermined size for receiving water and compressed air, the body having an injection port protruding below the body portion to inject water and compressed air into the inner receiving space of the body portion A fire extinguisher body coupled to a lower portion of the body portion and including a support portion protruding only the injection port to the outside; And a connection port formed on a position connectable to the injection port, supplying water and compressed air supplied from the outside through the connection port to the injection port, and inserting the support portion at least partially to provide the fire extinguisher main body. It includes; a cradle for mounting, the flow pipe provides a fire extinguisher for fire education, characterized in that provided with at least one hole communicating the inner receiving space of the body portion and the inside of the flow pipe.

The at least one hole may be positioned at an upper end of the flow path tube and spaced apart from the operation lever at a predetermined distance.

In addition, the at least one hole is adjustable in size, the flow rate of the compressed air is adjusted according to the size of the hole, the injection time and the injection form of the water can be varied.

In addition, the support portion is coupled to surround the lower portion of the body portion in a round shape, wherein the support portion is formed through the center of the bottom plate and the bottom plate, and only the injection port penetrates downward when mounting the body portion to a predetermined length to the outside It may be provided with a through hole to protrude.

In addition, the cradle, the box body for supporting the support; A circular groove formed on an upper portion of the box body and accommodating at least a portion of the support part to fix a position of the support part; A contact connecting portion located inside the circular groove and facing the bottom plate and provided with a connection port at an inner center thereof; And a seating portion extending inclined outwardly from the lower end of the box body and seated on the bottom surface.

In addition, the compressed air supply line for supplying the external compressed air to the inside of the box body using the first connection port formed on the side of the box body; A water supply line configured to supply external water into the box body by using a second connection port formed on a position adjacent to the first connection port; And a connection line provided inside the box body, one end of which connects the outlet of each of the compressed air supply line and the water supply line, and the other end of which is connected to the connection port.

In addition, the connection line is provided with a check valve for opening and closing the flow to the connection port, the check valve is attached to the inner side of the box body, only the valve operation lever is exposed to the outside of the box body It may be formed to.

In addition, the compressed air supply unit for supplying compressed air adjusted to a set pressure to the compressed air supply line; And a water supply unit supplying a predetermined amount of water to the water supply line.

In addition, the first control valve is installed in the compressed air supply line for controlling the opening and closing of the flow of compressed air supplied from the compressed air supply unit; A second control valve installed in the water supply line and configured to open and close the flow of water supplied from the water supply unit; And a controller that controls opening and closing operations of the first control valve and the second control valve.

In the compressed air supply line, at least one inlet valve and an outlet valve are provided at the front and rear positions of the first control valve, and at the front and rear positions of the second control valve at the water supply line. One inlet valve and an outlet valve may be provided.

In addition, at least one pressure gauge is provided at a rear end of the first control valve to detect a set pressure of the compressed air supplied through the compressed air supply line, and at least one flow meter is provided at a rear end of the second control valve. The flow rate of the water supplied through the water supply line can be detected.

According to the present invention, by using an educational fire extinguisher using water instead of fire extinguishing powder, it is possible to experience and educate fire safety education indoors similar to the actual use of fire extinguishers at a low cost. Accordingly, the supervisor can prevent various safety accidents in the superintendent and reduce the superintendent's operation cost. In addition, trainees can safely learn fire coping skills and experience the use of fire extinguishers to improve their fire coping and fire suppression capabilities.

According to the present invention, while using water instead of fire-extinguishing powder that is not harmful to the human body, by using high pressure compressed air to facilitate the injection of water, as well as by discharging the compressed air first and then by mixing the water with the compressed air by spraying There is an advantage that can prevent the failure and safety accident of the device due to the backflow of water.

In particular, according to the present invention, since water and high-pressure compressed air are mixed at the same time, continuous spraying of the extinguishing water is possible. Therefore, in the conventional case, the compressed air supply unit (for example, air is interrupted for a short time for water replenishment or confusion in operation). Compressor, etc.) has the advantage of solving the inconvenience of water backflow.

In addition to the effects described above, the specific effects of the present invention will be described together with the following description of specifics for carrying out the invention.

1 is an overall configuration diagram briefly showing a fire extinguisher for fire education according to an embodiment of the present invention.
2 is a cross-sectional view briefly showing a fire extinguisher for fire according to an embodiment of the present invention.
3 is an enlarged view of a hole of a flow pipe included in a fire hydrant for training according to an embodiment of the present invention.
FIG. 4 is a view briefly illustrating a digestive water supply unit of a fire extinguishing water fire extinguisher according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification. In addition, some embodiments of the invention will be described in detail with reference to exemplary drawings. In adding reference numerals to components of each drawing, the same components may have the same reference numerals as much as possible even though they are shown in different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description may be omitted.

In describing the components of the present invention, when a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected to or connected to that other component. However, it will be understood that other components may be "interposed" between each component, or that each component may be "connected", "coupled" or "connected" through other components.

1 is an overall configuration diagram briefly showing a fire education water fire extinguisher according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing a fire education water fire extinguisher briefly according to an embodiment of the present invention.

As shown, the fire extinguishing water fire extinguisher according to an embodiment of the present invention includes a fire extinguisher body 100, and the cradle 150.

The fire extinguisher body 100 includes a head part 110, a body part 120, and a support part 130.

The head unit 110 includes a spray pipe 111, the operating lever 113, the pressure gauge 116.

The injection pipe 111 refers to a tubular member having a predetermined length for injecting extinguishing water mixed with water and air compressed to have a predetermined pressure (hereinafter referred to as 'compressed air').

Specifically, the injection pipe 111 includes a hose 111a of a predetermined length so as to spray the extinguishing water in one direction. The tip of the hose (111a) may be further provided with a nozzle (111b) for the injection of the digestion water.

The operation lever 113 refers to a lever member in the form of a handle that can be pressed by a user.

For example, the operating lever 113 includes an upper lever 113a positioned at the top and a lower lever 113b positioned at the bottom.

As such, the user may inject the extinguishing water using the injection pipe 111 through the grip operation of the upper lever 113a and the lower lever 113b.

Meanwhile, although not separately illustrated, an insertion hole into which the safety pin is inserted may be further formed in the lower lever 113b, and after the removal of the safety pin, the user may manipulate the operation lever 113.

The pressure gauge 116 measures the internal pressure of the digestive water just before being exposed to the outside of the head unit 110 and injected through the flow path tube 121.

The installation form and type of the pressure gauge 116 are not necessarily limited to the form shown, and may be changed into the structure of a pressure gauge apparent to those skilled in the art.

Body portion 120 is provided with a flow path tube 121 for supplying digestion water to the injection pipe (111) inside.

Specifically, the inner side of the body portion 120 is provided with a flow path tube 121 for supplying the digestive water to the injection pipe (111).

In particular, at least one hole 125 may be provided in the flow passage 121 according to the embodiment of the present invention.

The hole 125 provided in the flow path tube 121 may have a structure in which the inner receiving space of the body part 120 communicates with the inside of the flow path tube 121 (that is, the inner flow path).

3 is an enlarged view of the hole 125 provided in the flow path tube 121. Referring to FIG. 3, the hole 125 is located at the top of the flow path tube 121 and sets a predetermined distance from the operating lever 113. Can be placed a little lower.

However, the hole 125 provided in the flow path tube 121 is not limited to the shape shown in FIG. 3, and the size of the hole 125 may be variously adjusted. In accordance with the size adjustment of the hole 125, the flow rate of the compressed air (FIG. 2) may be adjusted so that the injection time and the injection type of the water W (see FIG. 2) may be variably adjusted. And, as shown in FIG. 2, a plurality of holes 125 may be provided, and the shape of the hole 125 is not necessarily limited to a circle, and other shapes, for example, ovals, squares, and rhombuses may be formed. Can have.

An inner side of the body part 120 is provided with a receiving space of a predetermined size for receiving water (W, see FIG. 2) and compressed air (see FIG. 2). And the body portion 120 is an injection port protruding below the body portion 120 so that water (W, see FIG. 2) and compressed air (see FIG. 2) is injected into the inner receiving space of the body portion 120 123 is provided.

If there is no hole 125 in the flow pipe 121, when the water W is filled in the inner receiving space of the body part 120, the water W and the compressed air are mixed. Only water (W) has a problem that comes out of direct. In addition, when the water (W) is filled very small, there is a problem that the injection time of the mist mixed with water (W) and compressed air is limited within a few seconds (for example, 3 to 4 seconds, etc.) .

In particular, when only water (W) comes out of the direct water, it is not in the form of a mist (mist) like a regular fire extinguisher, so the effect of the fire extinguisher is reduced. This poses a fundamental functional problem as a fire hydrant because it does not properly describe a fire extinguisher.

In addition, when the mist injection time is limited to a few seconds (for example, 3 to 4 seconds, etc.), the actual operation time of the fire training water fire extinguisher is shortened and the filling of water (W) and / or compressed air (Air) is performed. There is a problem that the time is elongated and the education and practice efficiency is drastically lowered.

In the case of forming the hole 125 in the flow path tube 121 according to the embodiment of the present invention, the flow rate of the compressed air (Air, FIG. 2) is adjusted according to the size adjustment of the hole 125, so that water (W, FIG. Injection time and injection type can be variably adjusted. And as the hole 125 is formed, the injection time may have the effect of greatly extending to several tens of seconds (for example, 15 to 20 seconds, etc.). In addition, according to the size of the hole 125, the water (W) can be adjusted to be sprayed in a direct form or only compressed air (Air), it can be adjusted by the user in a variety of spray forms.

Support portion 130 refers to a pedestal-shaped member for supporting the lower portion of the body portion 120.

Specifically, the support 130 may be coupled to the lower portion of the body portion 120, in this case, may be provided in a form that can project only the injection port 123 to the outside.

For example, the support 130 is wrapped around the lower portion of the body 120 in a round shape is coupled. The supporting unit 130 may include a through hole 133 formed through the center of the bottom plate 131 and the bottom plate 131.

Here, the through hole 133 is positioned to penetrate the center of the bottom plate 131, and when the body part 120 is seated on the support part 130, only the injection port 123 penetrates downward to support the support part 1310. Allows a predetermined length to protrude to the bottom of the.

As such, the injection port 123 protruding to the lower portion of the support 130 may be connected to the connection port 157 provided in the center of the cradle 150, and the user may have the body 120 and the support 130. ) Can be connected to the one-touch simply by mounting on the cradle 150.

The cradle 150 allows at least a portion of the support 130 to be inserted so that the fire extinguisher body 100 can be mounted upright.

In addition, the cradle 150 has a connection port 157 is formed on the position that can be connected to the injection port 123. Accordingly, the water W and the compressed air supplied from the outside through the connection port 157 of the cradle 150 may be supplied to the injection port 123.

Specifically, the cradle 150 includes a box body 151, a circular groove 153, a contact connecting portion 155, and a seating portion 159.

The box body 151 refers to a box-shaped housing that supports the support 130. In addition, the circular groove 153 may be formed on the upper portion of the box body 151. The circular groove 153 may accommodate at least a portion of the base 130 and fix the position of the base 130.

The contact connector 155 is located inside the circular groove 153. Specifically, the contact connecting portion 155 is a portion facing the bottom plate 131 when at least a portion of the base 130 is accommodated into the circular groove 153, it refers to a portion facing the bottom plate 131. In addition, a connection port 157 is provided at an inner center of the contact connector 155.

The seating portion 159 extends inclined outwardly from the bottom of the box body 151 to be seated on the bottom surface (that is, the ground of education ground).

The cradle 150, more specifically, the first connection port 219 is provided on the side of the box body 151. Similarly, a second connection port 239 is provided at the side of the box body 151. The second connection port 239 may be formed on a position adjacent to the first connection port 219.

The first connection port 219 serves to introduce the compressed air supplied from the outside through the compressed air supply line 210 into the box body 151. The second connection port 239 serves to introduce the water (W) supplied through the water supply line 230 from the outside into the box body 151 (see FIG. 2).

On the other hand, the connection line 240 is provided inside the box body 151.

Specifically, one end of the connection line 240 is connected to the outlet of each of the compressed air supply line 210 and the water supply line 230, the other end is connected to the connection port 157 and the injection port 123. .

Thus, the water (W) and / or compressed air (Air) is passed through the connecting port 240 and the injection port 123 through the connection line 240 in the inner space of the box body 151 of the body portion 120 It can be injected into the inner receiving space.

In addition, the connection line 240 may be provided with a check valve 241 for opening and closing the flow to the connection port 157 and the injection port 123.

The check valve 241 may be attached to the inner side of the box body 151. Accordingly, the check valve 241 is formed so that only the valve operation lever (not shown) is exposed to the outside through the appearance of the box body 151, so that the user can easily connect the connection line 240 to the outside of the box body 151. Opening and closing can be adjusted.

Hereinafter, look at the configuration of the fire extinguishing water supply unit 200 for supplying water (W) and compressed air (Air) to the fire extinguisher body 100 through the cradle 150 in the fire training water fire extinguisher according to an embodiment of the present invention. Let's look at it.

The fire extinguisher supply unit 200 includes a compressed air supply line 210 and a water supply line 230.

Compressed air supplied from the external compressed air supply unit 400 flows along the compressed air supply line 210 and is supplied to the inside of the holder 150 through the first connection port 219. In addition, the water (W) supplied from the external water supply unit 500 flows along the water supply line 230 and is supplied to the inside of the holder 150 through the second connection port 239.

In this way, the water (W) and the compressed air (Air) is configured to be supplied separately along the different supply line, the water (W) and compressed air (Air) is mixed to the user's desired form of digestive water Can be generated.

Therefore, the fire extinguisher for fire education according to an embodiment of the present invention can be used as a digestive water by mixing a predetermined amount of water and compressed air without directly using an extinguishing powder that is expensive and may affect the human body. As a result, there is an advantage that the smooth flow and supply of digestive water is easy compared to the case of using only water, and prevents the backflow of water to prevent the failure of the device in advance. In addition, there is an advantage that can reduce the water consumption can be reduced compared to the case of using only water.

The compressed air supply unit 400 is a device that is installed outside the cradle 150 to supply compressed air adjusted to a set pressure. For example, the compressed air supply unit 400 may use an air compressor or the like.

The water supply unit 500 is installed outside the cradle 150 and is a device for supplying a predetermined amount of water. For example, the water supply unit 500 may be configured to include a water tank for storing water and a pump for supplying water.

Compressed air of the set pressure supplied from the compressed air supply unit 400 flows along the compressed air supply line 210 and is supplied to the inside of the holder 150 through the first connection port 219. At this time, the compressed air supply line 210 may be further provided with a first control valve 213 for opening and closing the flow of the compressed air supplied from the compressed air supply unit 400.

Water W supplied from the water supply unit 500 flows along the water supply line 230 and is supplied to the inside of the cradle 150 through the second connection port 239. At this time, the water supply line 230 may be further provided with a second control valve 233 for opening and closing the flow of water supplied from the water supply unit 500.

Meanwhile, the digestion water supply unit 200 may further include a configuration of the power supply unit 300 and the controller 250. The power supply unit 300 supplies power to components necessary for a valve for electrically on / off operation and opening adjustment.

The aforementioned first and second control valves 213 and 233 may be configured to electrically open and close the flow of compressed air and water. In this case, it is necessary to supply power to the first and second control valves 213 and 233, and the control of each operation is controlled automatically by the controller 250 or the user directly controls the operation using a manual switch. can do. For example, the controller 250 may be controlled to supply water first, and when the set amount of water is filled, the operation may be controlled to supply compressed air to spray extinguishing water. Alternatively, the user first supplies water by turning on the operation of the water supply unit 500, and then the user directly turns on the operation of the compressed air supply unit 400 to supply compressed air to supply compressed air. Injection action can be adjusted manually.

Furthermore, the compressed air supply line 210 may be provided with at least one valve 211 and 215 in the front and rear positions of the first control valve 213. At least one valve 231 or 235 may be provided in the water supply line 230 before and after the second control valve 233. However, the present invention is not limited to the illustrated form, and these valves 211, 215, 231, and 235 may be deleted as necessary.

In addition, a pressure gauge 217 may be provided at the rear end of the first control valve 213. The pressure gauge 217 may detect the pressure of the compressed air supplied.

In addition, a flowmeter 237 may be provided at a rear end of the second control valve 233. The flow meter 237 can detect the flow rate of the water W to be supplied.

As described above, according to the configuration of the present invention, by using an educational fire extinguisher using water instead of fire extinguishing powder, it is possible to experience and educate fire safety education indoors similarly to the actual use of fire extinguishers at a low cost while safely.

 Accordingly, the supervisor can prevent various safety accidents in the superintendent and reduce the superintendent's operation cost.

In addition, trainees can safely learn fire coping skills and experience the use of fire extinguishers to improve their fire coping and fire suppression capabilities.

In particular, according to the present invention, while using inexpensive water instead of expensive fire extinguishing powder, it is possible to smoothly spray water by using high pressure compressed air, as well as to spray water by mixing water with compressed air. It allows you to have a realistic experience.

Furthermore, after the compressed air is discharged first, water is supplied after a certain time step, and water and compressed air can be smoothly sprayed without compressing the water to the required pressure. There is an advantageous technical effect that can prevent accidents in advance.

Although the present invention has been described with reference to the drawings exemplified as above, the present invention is not limited to the embodiments and drawings disclosed herein, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that modifications can be made. In addition, even if the above described embodiments of the present invention while not explicitly described by describing the effect of the configuration of the present invention, it is obvious that the effect predictable by the configuration is also to be recognized.

100: fire extinguisher body
110: head portion
111: injection pipe
111a: hose
111b: nozzle
113: operation lever
113a: upper lever
113b: lower lever
116: pressure gauge
120: body
121: Euro tube
122: entrance of the euro tube
123: injection port
124: expansion tube
125: hall
130: base
131: base plate
133: through hole
150: holder
151: box body
153: circular groove
155: contact connection
157: connection port
159: seating part
200: digestion water supply
210: compressed air supply line
211: first inlet valve
213: first regulating valve
215: first outlet valve
217: pressure gauge
219: first connection port
230: water supply line
231: second inlet valve
233: second regulating valve
235: second outlet valve
237: flow meter
239: second connection port
240: connection line
241: check valve
250: controller
300: power supply unit
400: compressed air supply unit
500: water supply unit

Claims (9)

A head portion having a spray pipe for injecting extinguishing water mixed with water and compressed air, and an operating lever connected to the spray pipe, and a flow path pipe for supplying extinguishing water to the spray pipe, are provided with water and compressed air. A fire extinguisher body including a body portion having an injection port positioned at a lower side so that water and compressed air is injected into the accommodation space, and a receiving portion coupled to a lower portion of the body portion is provided. Include,
The flow path tube is provided with at least one hole for communicating the interior of the accommodation space and the flow path tube,
A connection port formed on a position connectable with the injection port, supplying water and compressed air supplied from the outside through the connection port to the injection port, and inserting the support portion at least partially to hang the main body of the fire extinguisher; Further includes a cradle,
The cradle includes a box body for supporting the support part, a circular groove formed on an upper portion of the box body and receiving at least a portion of the support part to fix the position of the support part, and positioned inside the circular groove. A fire extinguishing fire extinguisher comprising a contact connection part facing the bottom plate of the support part, the connection port being provided at the inner center, and a seating part.
delete The method of claim 1,
The at least one hole,
Located at the upper end of the flow pipe, characterized in that spaced apart from the operating lever at a set distance from the set
Fire extinguisher for fire education.
The method of claim 3,
The at least one hole is adjustable in size, and the flow rate of the compressed air is adjusted according to the size adjustment of the hole, characterized in that the injection time and the injection form of the water is variable
Fire extinguisher for fire education.
The method of claim 1,
The support portion is coupled to wrap the lower portion of the body portion in a round shape,
The support portion,
It is formed through the center of the base plate and has a through hole for protruding a predetermined length to the outside by penetrating only the injection port downward when the body portion is seated
Fire extinguisher for fire education.
The method of claim 1,
The seating portion,
It extends inclined outward from the bottom of the box body, characterized in that seated on the bottom surface
Fire extinguisher for fire education.
The method of claim 1,
A compressed air supply line configured to supply external compressed air to the inside of the box body by using a first connection port formed at a side of the box body;
A water supply line configured to supply external water into the box body by using a second connection port formed on a position adjacent to the first connection port; And
A connection line provided inside the box body, one end of which is connected to the outlet of each of the compressed air supply line and the water supply line, and the other end of which is connected to the connection port and the injection port;
Fire education water fire extinguisher comprising a.
The method of claim 7, wherein
In the connection line,
It is provided with a check valve for opening and closing the flow to the connection port,
The check valve is attached to the inner side of the box body, characterized in that the valve operation lever is formed so as to be exposed to the outside of the box body.
Fire extinguisher for fire education.
The method of claim 7, wherein
A compressed air supply unit supplying compressed air regulated to a set pressure to the compressed air supply line; And
A water supply unit supplying a predetermined amount of water to the water supply line;
Fire education water fire extinguisher comprising a.

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