1. Field of the Invention
The present invention relates to a fire extinguisher, and more particularly, to a fire extinguisher which is simple in structure and easy to operate.
2. Description of the Related Art
A fire extinguisher having a cylinder filled with fire-extinguishing gas is constructed such that when a seal plate of the cylinder is manually or automatically broken at the outbreak of a fire, the fire-extinguishing gas is ejected from the cylinder to put out the fire. Many of conventional fire extinguishers contain component parts that are used in common in manual fire extinguishers and automatic fire extinguishers. Fire extinguishers of this type are, however, disadvantageous in that they are complicated in structure, require a large number of parts, and are costly. Further, some fire extinguishers require complicated handling or involve a difficulty in accurately aiming at the origin of a fire, which hinders fire-fighting work or lessens the fire-extinguishing capability.
Also known is a fire extinguisher having a replaceable cylinder. In this type of fire extinguisher, the component parts thereof must be reset in their initial state when the cylinder is replaced; this often makes it difficult to smoothly load a new cylinder. If the cylinder cannot be smoothly replaced, then it is difficult to perform fire-fighting work using a plurality of cylinders successively replaced.