JP2001046539A - Automated extinguisher using linear memory wire material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable production of extinguishers that have function of automated extinguisher without changing the basic structure of manual extinguisher and that can be used for multi-applications. SOLUTION: By utilizing a force that suddenly contracts when a linear memory wire material 1 set at a target temperature rises to the preset temperature for the action of pulling an action lever 2 of an extinguisher, the wire material 1 contracts and lets the extinguisher automatically function when ambient temperature rises caused by outbreak of fire, and concurrently, putting on and off of a safety plug 5 enables two-way usage of automatic and manual systems and makes it possible to manufacture automated extinguishers at a low price for many applications.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguisher that operates automatically by using a linear memory wire that contracts when a manual fire extinguisher rises to a set temperature.

[0002]

2. Description of the Related Art An automatic fire extinguisher currently on the market compresses a powerful spring for operation, releases its elasticity when the easily melted solder is melted by heat or the like, and receives a built-in high-pressure gas cylinder upon impact. In many cases, the fire extinguishing agent is blown out by opening the valve or opening the compressed air valve. Therefore, the mechanism becomes complicated, and as a result, the product becomes expensive. In addition, there are many problems in handling and selection of a mounting place.

[0003]

In the event of a fire,
It is often possible to extinguish fires relatively easily if appropriate firefighting activities are performed at the early stage of the fire. However, when a fire breaks out, it often occurs in an unexpected place that is out of sight and at an unexpected time. It often spreads and burns. Therefore, in the case of a building fire, an automatic fire extinguisher that is not a manual fire extinguisher but that automatically detects the occurrence of the fire and operates automatically regardless of human operation is desired. However, the current automatic fire extinguisher has some barriers to its spread in terms of price and ease of handling.Therefore, there is no need to change the basic structure of a manual fire extinguisher and a simple additional mechanism The aim is to achieve automation by itself and enable the production of inexpensive automatic fire extinguishers.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a linear memory wire is subjected to tensile strain processing so that it has a characteristic of suddenly shrinking when a predetermined temperature is reached. Automatically activates a manual fire extinguisher by detecting the rise in ambient temperature when a fire occurs and utilizing the force of the contraction of the linear memory wire to pull the manual activation lever The problem is solved by having the function of an automatic fire extinguisher.
In addition, this method can be used for pressurized and accumulator type manual fire extinguishers, and at the same time, enables both automatic fire extinguishers and manual fire extinguishers.

[0005]

The linear memory wire used in the present invention has a slightly different shrinkage depending on the strain rate and the set temperature at the time of tensile strain processing, but the temperature suitable for use of the automatic fire extinguisher is 60 ° C.
It has been experimentally confirmed that a shrinkage ratio of 6% or more with respect to the length of the used linear storage wire is ensured in the range of from to 100 ° C. Therefore, when a wire rod of 40 cm is used, a contraction stroke of 2.4 cm or more can be secured, so that it is possible to operate a manual fire extinguisher currently on the market by slightly adjusting the play of the lever. I can do it. In addition, the contracting tensile force is K1 made by Daido Steel.
In the case of a 0KALLOY-R linear memory wire having a diameter of 1.88 mm, 70 kg or more, and similarly a 30 mm wire with a 1.20 mm wire.
Since a weight of at least kg is obtained, a sufficient pulling force can be secured as a force for pulling the operating lever. Therefore, by fixing one end of this wire to the lower part of the container of the fire extinguisher body and fixing the opposite end to the operating lever by penetrating the fixed handle, the linear memory wire becomes When the temperature rises to a preset temperature, the fire extinguisher can be automatically operated by pulling the operation lever. Also, when used by hand, the straight storage wire can be used without any trouble by gripping the handle, and the lower support bracket and the straight storage wire slide only downward. Can be solved by adopting.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. Reference numeral 1 denotes a linear storage wire, which is fixed to the operating lever 2 through the lower support 13 of the container of the fire extinguisher body and the handle. Reference numeral 2 denotes an operation lever, which is operated by pulling the lever. 3 is a fixed handle when used manually. Reference numeral 4 denotes a cutting shaft for opening a built-in high-pressure gas cylinder in a pressurized fire extinguisher and opening a compressed air valve in a pressure accumulating fire extinguisher. 5
Is a safety plug. In the case of a manual type application, it is used as it is, and in the case of an automatic fire extinguisher, it is pulled out in advance to release the stopper before use. 6 is a stopper for preventing malfunction. 9 is a flexible pipe for selecting the direction of fire extinguishing agent. 10 is a horn that sprays fire extinguisher.

As described above, when used for a manual operation, the safety plug is kept as it is, and when used as an automatic fire extinguisher, a fire extinguishing cover area such as a wall surface, or
After attaching to the desired location, remove the safety plug and release the stopper.

When used manually, a standard injection hose is installed, and when used for automatic fire extinguishing, it is replaced with a screw type so that it can be replaced with a flexible pipe and a wide-angle horn. It is preferable to use a method that performs

[0009] Fire extinguisher systems that can be used are commonly used for pressurized systems, accumulator systems, powder fire extinguishers, liquid fire extinguishers, and other systems that are operated by holding a handle.

By making the pin of the unused confirmation mark a slightly harder material, the operating speed can be increased by the impact effect of the spring effect of the linear memory wire itself.

By using a linear memory wire, the operating temperature can be selected from a relatively low temperature to 100 ° C.
Enables production of models that match the purpose and purpose.

As described above, by adding a simple mechanism to a manual fire extinguisher, the function of an automatic fire extinguisher can be provided, and at the same time, both manual and automatic fire extinguishers can be used. Therefore, the presently desired automatic fire extinguisher can be produced at low cost and promoted to spread, and it can meet wide demands not only for ordinary households but also for private rooms of hotels, warehouses, ships, and the like.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of an automatic fire extinguisher using a linear storage wire according to the present invention.

[Explanation of symbols]

 1 Linear memory wire 2 Operation lever 3 Fixed handle 4 High pressure cylinder and off-axis for releasing compressed air 5 Safety plug 6 Stopper 7 Unused confirmation mark 8 Opening cylinder part 9 Flexible pipe 10 Fire extinguishing agent injection horn 11 Linear memory Fixing screw for wire rod 12 Lower fixing screw for linear memory wire 13 Lower support bracket for linear memory wire 14 Upper bracket for linear memory wire 15 Fire extinguisher main body container 16 Ring connecting container and working cylinder part

Claims (1)

[Claims] 1. A fire extinguisher comprising a linear memory wire and a manual fire extinguisher operated by gripping a handle, wherein the linear memory wire is pre-processed so as to contract when the temperature rises to a target temperature, and one end of the wire is disposed below a fire extinguisher container. By fixing to the part and fixing the other end to the operating lever by penetrating the handle, the force that contracts when the linear memory wire rises to the set temperature is used for pulling the operating lever, and the manual type is used. An automatic fire extinguisher that uses a linear memory wire, characterized by automatically operating the fire extinguisher without changing the basic structure of the fire extinguisher.