Overheat protection control component for liquid heating vessel

An overheat protection control component for a liquid heating vessel, comprising:

• a control body (1);
• a single-integrated dual-actuation thermally sensitive bimetallic actuator (2) provided on an upper face of the control body (1), wherein the single-integrated dual-actuation thermally sensitive bimetallic actuator (2) is two integrated and relatively independent actuating units which are formed on a piece of bimetallic strip, either said actuating unit includes its own outer kick limb (3), internal tongue (4) and tongue root (5) that connects the outer kick limb (3) and the internal tongue (4), the tongue roots (5) of said two actuating units are close to each other and are integrated, the tongue tip of the internal tongue (4) and the outer kick limb (3) of said one actuating unit is remote from the same of the other actuating unit, the single-integrated dual-actuation thermally sensitive bimetallic actuator (2) is provided on the control body (1) via the internal tongues (4) thereof, and the outer kick limb (3) of either said actuating unit will produce an actuating movement downwards when an overheat state occurs;
• two groups of switch contacts (6) further provided on the control body (1), wherein either group of switch contacts (6) cooperate with the outer kick limb (3) of a corresponding actuating unit, and the outer kick limb (3), when producing a downward actuating movement, will open a corresponding group of switch contacts (6) and cut off the power supply of the heater for the liquid heating vessel.