Patent ID: 7703470

Claim:
A safety switch of a gas stove, comprising: a main member including a cone valve chamber, a first chamber, a second chamber, a first check port between the valve chamber and the first chamber, a second check port between the valve chamber and the second chamber, an input tunnel connected to the first chamber, a first output tunnel and a second output tunnel connected to the second chamber and outside of the main member respectively; a close member, which includes at least a gas bore, received in the valve chamber and complementary to the valve chamber; an electromagnetic valve received in the first chamber to seal the first check port normally; a first temperature controller received in the second chamber and associated with the second check port to seal the second check port normally; a second temperature controller received in the second output tunnel with an end sensing a temperature of the gas stove to switch the second tunnel communicated with outside or not and change a gas flow rate; and a knob set mounted at the main member and connected to the close member, the first temperature controller and the electromagnetic valve to turn the close member and activate the first temperature controller and the electromagnetic valve.