| 摘要 |
The present invention relates to an overheating-detector, gas shutoff cock which shuts off gas flow upon sensing an excessive temperature rise to prevent accidents caused by overheating. The cock of the present invention is configured such that a shutoff plate is installed in a joint member fitted into a connection pipe coupled to a ballcock to shut off a gas flow channel by means of the shutoff plate supported by the restoring force of an elastic spring. The elastic spring is produced from a super-elastic spring, and the joint member fitted into the gas flow channel has a joint protrusion formed at an outer surface thereof. The connection pipe has an indicator installed at an outer surface thereof, for indicating whether lead for fixing the shutoff plate has melted. The color of a knob is determined in accordance with the type of the lead for fixing the shutoff plate. |
