JP2718444B2 - Fire extinguisher - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguisher and, more particularly, to a fire extinguisher having a heat source therein, such as a home electric appliance such as a television receiver, a copying machine, various machine tools, and a control machine. When the thermal expansion agent enclosed in the container is overheated to a predetermined temperature that will cause a fire, the fire extinguishing agent enclosed in another container blows out and automatically extinguishes the fire.

[0002]

2. Description of the Related Art Conventionally, for example, home electric appliances having a heat source such as a capacitor inside a television receiver generate heat by use, and when a fire occurs, a discoverer or the like is provided separately from the television receiver for the first time. The fire was extinguished by operating a known fire extinguisher and spraying a fire extinguishing agent from a nozzle or applying water pumped to a bucket.

[0003]

However, the fire extinguishing operation is performed by using a fire extinguisher provided separately from the television receiver or the like to blow out a fire extinguishing agent or apply water pumped to a bucket. The fire extinguishing work is performed only when the discoverer notices a fire. In addition, it is difficult for a known fire extinguisher to appropriately perform a fire extinguishing operation even if a person who has not received any fire extinguishing training in advance does so. Therefore, it takes time to perform the initial operation for extinguishing the fire, and it may be too late to be important. In addition, the known digestive organs have a complicated structure and a large number of parts, require time and labor to manufacture and assemble, are large, and are expensive to manufacture.

Accordingly, the present invention provides a fire extinguishing agent that automatically blows out when the temperature of the outside air reaches a level at which a fire occurs, extinguishes the fire quickly and reliably, is simple in structure, easy to manufacture and assemble, and compact. It is an object of the present invention to provide a fire extinguisher that is available and at a low cost.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above problems, and has a first container in a hermetically sealed state, a thermal expansion agent sealed in the container, and a fire extinguishing agent inside. Is sealed, a second container formed of a material having flexibility so as to be able to be pressed and deformed by a pressing force when the thermal expansion agent expands by feeling the heat, and the heat expansion to a predetermined temperature that is associated with a fire. When the inflation agent is overheated, a plug member is provided on a part of the second container so as to be able to open the valve so as to eject the fire-extinguishing agent.

[0006]

When the outside air is overheated by the heat source, the thermal expansion agent sealed in the first container expands, and the second container having flexibility is pressed and deformed by this pressing force. Therefore, the fire extinguishing agent enclosed in the second container is ejected from the nozzle, and the fire is extinguished automatically.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is incorporated in a television receiver will be described below with reference to FIGS. 1 is a television receiver. Reference numeral 2 denotes a fire extinguisher according to the present embodiment, which is incorporated in the television receiver 1. The fire extinguisher 2 is formed in the following structure. Reference numeral 3 denotes a hermetically sealed first container in which a thermal expansion agent 4 is sealed. The container 3 is formed of a metal, for example, iron, aluminum, zinc, tin, or an alloy thereof, in a substantially cylindrical shape so that the container 3 is easy to process and exhibits rigidity and pressure resistance. The length of the container 3 is 100 to 150 mm, and its outer diameter is about 30 to 50 mm. The container 3 thus formed has a pressure resistance of 15 kg / cm ² or more. The load pressure of the thermal expansion agent 4 in a normal state is about 1 to ² kg / cm ² .

The thermal expansion agent 4 does not corrode the container 3, but is used as an agent which rapidly expands when the temperature of the outside air reaches a predetermined temperature at which a fire occurs, for example, 70 ° C. or more. As the thermal expansion agent 4, for example, a sodium carbonate solution is used, and its expansion pressure is 15 kg / cm.
^Two or more are exhibited.

Reference numeral 5 denotes a second member provided in the first container 3.
The second container 5 is made of a material having flexibility so that the thermal expansion agent 4 can be pressed and deformed by a pressing force when the thermal expansion agent 4 expands by feeling heat at the time of overheating in the outside air. It is formed in a tubular shape, and the fire extinguishing agent 6 is sealed inside. Synthetic resin is used to form the container 5,
This synthetic resin is not eroded by the fire extinguishing agent 6,
For example, a polyethylene resin, a polystyrene resin, or the like is used. When the temperature of the outside air becomes higher than the temperature at which the fire occurs, for example, 70 ° C.
Has a pressure resistance of 15 kg / cm ² or more so that it can be pressed and deformed by receiving the pressing force of the thermal expansion agent 4 when it expands, and 1 to 2 mm when a polyethylene resin is used.
It is formed to a thickness of the order.

A second container 5 provided in the first container 3
The fire extinguishing agent 6 enclosed in the inside is, for example, a powder extinguishing agent.
There is an ABS digestion agent mainly composed of phosphates,
Urea and sodium carbonate are the main liquid extinguishing agents.
There is a bonpet drug that has been taken. Powder like ABS digestive
When a fire extinguisher is used, the inside of the container 5 should be 1-2 kg / cm.
^TwoAnd the expansion of the thermal expansion agent 4 sealed in the container 3.
Due to the synergistic effect of pressure during tensioning, powder
It begins to squirt. Liquids such as bompet drugs
If body fire extinguisher is used, the liquid fire extinguisher should be at about 40 ° C.
About 3kg / cm inside pressure of container 5^TwoTo the extent, but outside air
The temperature at which the temperature rises to about 85 ° C or higher, leading to a fire
, The thermal expansive agent 4 expands and the liquid fire extinguisher gushes out
Is necessary for the mist-like or rain-like ejection of the liquid fire extinguishing agent 6.
It is.

Reference numeral 7 denotes a plug member provided on one side of the container 5 in which the fire extinguishing agent 6 is sealed. When the thermal expansion agent 4 expands abruptly to be connected, the container 5 is pressed and deformed by the applied pressure, and is further crushed by the applied pressure of the extinguishing agent 6 to eject the extinguishing agent 6. It has become. The set pressure when the fire extinguishing agent 6 crushes the plug member 7 and jets out from the container 5 is set to about 12 kg / cm ² . Reference numeral 7a denotes an appropriately shaped cut groove provided in the plug member 7, and the cut groove 7a is designed to crush the plug member 7 when the set pressure is reliably reached, for example, as shown in FIG. Formed on the front cross.

Reference numeral 8 denotes a nozzle attached to one end of the flexible tube 9 so as to be able to communicate with the plug member 7. As shown in FIG. 1, the nozzle 8 is made of a metal that can withstand high temperatures, for example, a stainless steel. The fire extinguishing agent 6 is ejected to the periphery by being formed in a trapezoidal shape and appropriately provided with several ejection holes 8a. The reason why the nozzle 8 is formed to have a substantially trapezoidal cross section is that
This is because the fire extinguishing agent 6 is scattered around. Reference numeral 10 denotes a lock nut for attaching the nozzle 8 to one end of the flexible tube 9. The nozzle 8 is provided at one end of the flexible tube 9 so that the jetting direction of the fire extinguishing agent 6 can be changed so that the jetting direction of the fire extinguishing agent 6 can be accurately jetted toward a heat source such as the condenser C. It is.

One embodiment of the present invention has the above configuration.
When the heat source such as the capacitor C is overheated by using the television receiver 1 as a home appliance, for example, the thermal expansion agent 4 sealed in the first container 3 is expanded by overheating.

When the thermal expansion agent 4 is overheated by the heat radiation from the heat source such as the capacitor C until the outside air reaches a predetermined temperature, for example, a temperature at which the fire temperature is reached, the degree of expansion is increased. Since the second container 5 provided in the container 5 is further pressed and deformed by the pressing force of the thermal expansion agent 4,
The plug member 7 provided on one side is pressurized by the fire extinguishing agent 6 sealed in the container 5 and crushed. Therefore, the fire extinguishing agent 6 is ejected through the flexible tube 9 from the ejection hole 8a of the nozzle 8 attached to one end of the flexible tube 9 toward the condenser C as a heat source. In this way, the fire from the condenser C as a heat source in the television receiver 1 can be extinguished automatically and in a short time, and the initial fire extinguishing can be quickly and reliably performed for the fire that causes the television receiver 1 to fire.

FIG. 3 shows another embodiment of the present invention. In this embodiment, a second container 5 in which a fire extinguishing agent 6 is enclosed is provided in the first container 3 in which a thermal expansion agent 4 as a pressure source for the container 5 is enclosed. In contrast, with the configuration in which the second container 5 in which the fire extinguishing agent 6 is enclosed is provided outside the container 5 in which the thermal expansion agent 4 is enclosed, the capacitor C as a heat source overheats, the thermal expansion agent 4 expands, and a fire occurs. When the temperature reaches a temperature that is linked to the temperature, the expansion of the thermal expansion agent 4 causes the flexible container 5 to be pressed and deformed, and the internal pressure in the container 5 increases, thereby breaking the plug member 7. The difference from the above-described embodiment is that the fire extinguishing agent 6 is urged to the heat source from the ejection hole 8a of the nozzle 8 to extinguish the fire. In this embodiment, in order to sufficiently receive the pressing force from the thermal expansion agent 4, it is preferable that the pressure receiving area of the container 5 with respect to the thermal expansion agent 4 is set as large as possible.

In each of the above embodiments, the plug member 7 is formed of a synthetic resin or glass into a substantially plate shape.
However, the structure of the plug member is not limited to this.For example, the plug member is always closed by the urging force of a spring material such as a coil spring or a plate spring, and the outer member is closed. When a proper pressing force is applied, a valve having a well-known structure in which the plug is opened against the urging force of the spring material may be used.

In the above description, a fire extinguisher 2 is provided in a television receiver 1 as a home appliance to extinguish a fire. However, in addition to the television receiver 1, a copying machine having a heat source and other household appliances are used. The present invention is also applicable to extinguishing a fire by providing a fire extinguisher 2 in a product, a machine tool, or a control machine.

[0018]

As described above, according to the present invention, when the temperature of the outside air reaches a level at which a fire occurs, the fire extinguishing agent is automatically blown out to extinguish the fire quickly and reliably. It is easy, small, and inexpensive.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a front view of a plug member used in the present embodiment.

FIG. 3 is a sectional view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Television receiver 2 Fire extinguisher 3 First container 4 Thermal expansion agent 5 Second container 6 Fire extinguishing agent 7 Plug member 8 Nozzle

Claims (6)

(57) [Claims] 1. A sealed first container, a thermal expansive agent sealed in the container, and a digestive agent sealed in the inside, and a pressure when the thermal expansive agent expands by feeling heat. A second container formed of a material having flexibility so that it can be deformed by pressing, and a valve that can be opened so as to eject the fire-extinguishing agent when the thermal expansion agent is overheated to a predetermined temperature associated with a fire. A fire extinguisher comprising a second plug member provided on a part of the container. 2. The container according to claim 1, wherein a second container is provided in the first container, and the plug member is connected to one side of the second container so as to be able to communicate with a nozzle. A fire extinguisher according to item 1. 3. The second container is provided so as to be able to receive pressure when at least a part of the first container encloses a thermal expansion agent, and the plug member is provided on one side of the second container. The fire extinguisher according to claim 1, wherein the fire extinguisher is provided so as to be able to communicate with the nozzle. 4. The nozzle according to claim 1, wherein the nozzle is attached to one end of a flexible tube so as to change a direction in which the fire extinguishing agent is ejected, and the plug member is attached to the other end of the flexible tube. 2. The fire extinguisher according to 1. 5. The fire extinguisher according to claim 1, wherein the plug member is formed of a synthetic resin or glass into a substantially plate-like shape that can be crushed by the pressure of the fire extinguishing agent. 6. The plug member according to claim 1, wherein an appropriately shaped cut groove is formed in the plug member. The fire extinguisher described.