| 摘要 |
A safety apparatus is disclosed to include a main body having a chamber, a pin installed in the chamber, and a thermally-sensitive fragile member. The chamber has a top opening, a bottom opening and through holes communicating with outside. A supporting piece is mounted inside the chamber adjacent to the bottom opening. The pin has a base portion and a body portion which is fit with a spring and runs through the top opening of the main body. The thermally-sensitive fragile member has an end positioned on the supporting piece and the other end holding against the pin. When the thermally-sensitive fragile member is shattered at a predetermined temperature, the pin will be driven by a rebounding resilience of the spring to move inwardly into the chamber. The safety apparatus is completely properly for use in a gas switch and a fire alarm device.
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