JPH0111267Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to the improvement of fire extinguishers that are widely installed and used in general households, factories, warehouses, and other places where fire is handled.

(Prior Art) Conventionally known fire extinguishers discharge dry powder or foam extinguishing agents from a radiation nozzle through a hose by manual operation by pressurizing or accumulating pressure, and in the event of a fire, they do not have to be manually operated. An automatic/manual type fire extinguisher has also been developed that, by simply installing a fire extinguisher, will melt the fuse metal in the exhaust pressure plug by heating in the event of a fire and automatically emit extinguishing agent.

(Problem to be solved by the invention) However, in the case of the above-mentioned known fire extinguisher, the sixth
- As shown in FIG. 7, the discharge port 2 of the exhaust pressure plug is oriented perpendicularly to the vertical axis of the fire extinguisher main body 1, and the chemical can only be emitted in a certain direction.
In this case, if the discharge force of the exhaust pressure plug is too strong, the reaction will cause the fire extinguisher to fall over, making it impossible to achieve its purpose. There were problems such as not being able to extinguish the fire.

(Means for solving the problem) Therefore, in order to solve this problem, the present invention is designed to prevent the fire extinguisher from falling over and even if the source of the fire is not in the same direction as the fire extinguisher outlet. The purpose is to provide a fire extinguisher that can effectively extinguish a fire automatically, and specifically, the discharge port of the exhaust valve of a fire extinguisher has a exhaust valve blocked by a fuse metal. The fire extinguisher is oriented in the tangential direction of the fire extinguisher main body, and is characterized by having a rotatable pedestal integrally or separately at the bottom of the fire extinguisher main body.

(Example) Examples of the fire extinguisher according to the present invention will be described below with reference to the drawings.

1 and 2 show a plan view and a side view of a fire extinguisher according to an embodiment of the present invention.

In the illustrated fire extinguisher, 1 is the fire extinguisher body, 2 is the discharge port of the exhaust valve provided above the fire extinguisher body 1, 3 is the rotatable pedestal, 4 is the operating handle lever, and 5 is the pressure gauge. show.

The discharge port 2 of the exhaust valve is oriented in the tangential direction of the rotating circle from the center of the fire extinguisher body 1, or is installed oriented in either the left or right direction from the front within a range of 45° from the tangential direction. .

Further, a rotatable pedestal part 3 is formed below the fire extinguisher main body 1, and this pedestal part 3 consists of an upper pedestal 3a and a lower pedestal 3b, and a bearing 3 is placed between the two pedestals.
The pedestal portion 3 is constructed integrally with the bottom of the fire extinguisher body 1 and can be easily rotated by a minute rotational force applied to the fire extinguisher body 1. It's becoming like that.

Further, the rotating pedestal part is not necessarily limited to the configuration described above; for example, the fire extinguisher main body 1 may be placed on the top surface of a dish-shaped pedestal part (not shown) whose upper surface is rotatable with respect to the ground surface. It may also be configured separately.

In addition, the exhaust pressure valve is normally closed by a fuse metal, and when it reaches a certain temperature atmosphere (for example, 72°C) associated with a fire, it melts and opens.
It is designed to emit extinguishing agent using internal pressure.

(Function) Next, the method of extinguishing a fire using the fire extinguisher according to the present invention will be explained. When a fire occurs, the ambient temperature around the fire extinguisher is heated to a preset temperature (72°C), and when the temperature rises, the fuse metal melts, the exhaust pressure valve opens, and extinguishing agent is vigorously released from the discharge port 2.
In this case, since the discharge port is oriented in the tangential direction of the rotation circle from the center of the fire extinguisher body 1,
As a result, a rotational force is generated in the fire extinguisher main body 1 as a result of giving the most effective thrust by the discharge pressure to the fire extinguisher body 1. The bottom of the fire extinguisher main body 1 is configured to be rotatable even when a slight rotational force is generated by the integrated or separate pedestal 3, so that the fire extinguisher main body receives thrust from the discharge pressure and releases the extinguishing agent. Rotate while releasing.

(Effect of the invention) Therefore, according to the fire extinguisher of the present invention, the discharge port of the exhaust valve is oriented in the tangential direction of the rotation circle from the center of the fire extinguisher main body or in a direction outward from it,
Moreover, since the bottom of the fire extinguisher body is configured as a rotatable pedestal, the fire extinguisher body can freely rotate using the extinguishing agent discharge pressure as a rotational thrust, rotating while emitting the extinguishing agent to the surroundings. Fires on the opposite side of the outlet can also be extinguished. In addition, the extinguishing agent can quickly and evenly fill the room, making it possible to extinguish fire effectively using the so-called "fire suppression method." Furthermore, since the discharge pressure is converted into rotational thrust energy, there is no need to worry about the extinguisher tipping over. Effects can be obtained.

(Experiment Example) The results of a fire extinguishing experiment using the present invention will be explained. In the first experiment, as shown in Figure 3, two fire extinguishing test objects A and B were prepared by cutting off the upper end of the drum in a semicircle and holding it horizontally and filling it with gasoline, and placed 15 cm away from each drum can. The experiment was conducted by setting the fire extinguisher so that the outlet of the exhaust valve was located at the same position. Regarding the experimental results, in the case of a fire extinguisher with a structure in which the outlet of the exhaust pressure valve faces the front, the operating time until the chemical is released is 21 seconds, and for the fire extinguisher A with the outlet of the exhaust valve facing forward, it takes about 1 second. Although the fire was extinguished, object B on the opposite side remained unextinguished.

On the other hand, if the discharge port of the exhaust pressure plug is oriented tangentially to the fire extinguisher body, and a rotatable pedestal is provided integrally or separately at the bottom of the fire extinguisher body, the fire extinguishing target A , B were completely extinguished in 2 seconds.

In the second experiment, as shown in Figures 4 and 5, tatami mats A and B, each filled with 1 kerosene, and an oil pan filled with 2 gasoline were placed in the room, and each was ignited to extinguish the fire. It is something that has been done. The operating time from ignition to drug release is approximately 35 seconds.
With a fire extinguisher with the outlet of the exhaust valve facing forward, it was able to extinguish Tatami B and the oil pan where the outlet of the exhaust valve was facing, but not Tatami A.

On the other hand, if the discharge port of the exhaust pressure plug is oriented tangentially to the fire extinguisher body, and if a rotatable pedestal is provided either integrally or separately at the bottom of the fire extinguisher body, it will take about 5 seconds. The fire was completely extinguished in Tatami A, B and the oil pan.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a fire extinguisher showing one embodiment of the present invention, Fig. 2 is a side view of Fig. 1, Fig. 3 is an explanatory diagram showing the first experimental example, and Fig. 4 is a diagram showing the second example. A plan view showing an experimental example, Fig. 5 is a side view of Fig. 4, Fig. 6 is a plan view of a fire extinguisher with the discharge port of the exhaust valve facing the front, and Fig. 7 is a side view of Fig. 6. It is. 1... Fire extinguisher main body, 2... Exhaust pressure plug outlet, 3
...Pedestal section.

Claims (1)

[Scope of utility model registration request] In a fire extinguisher having a pressure release valve for extinguishing agent blocked by a fuse metal, the discharge port of the pressure release valve is oriented in the tangential direction of the fire extinguisher main body, and the bottom of the fire extinguisher main body is A fire extinguisher characterized by having a rotatable pedestal integrally or separately.