Device capable of automatically adjusting smoke exhaust opening of range hood based on gear transmission

The invention relates to the technical field of intelligent household appliances, and discloses a device capable of automatically adjusting a smoke exhaust opening of a range hood based on gear transmission. The device comprises a first housing and a second housing, wherein a third housing is movably connected to the interior of the first housing; a bimetallic strip is movably connected to the interior of the third housing; a rotating wheel is movably connected to the bottom of the bimetallic strip; a trigger assembly is movably connected to the interior of the first housing, a motor is movably connected to the interior of the second housing; a rotating shaft is movably connected to the exterior of the motor; and a connecting block is movably connected to the exterior of the rotating shaft. Through the interaction among the first housing, the second housing, the third housing, the bimetallic strip, the rotating wheel and the trigger assembly, the device can sense the opening of different gas cooking ranges un