Stepless height adjusting mechanism of the lever on grilling pan

A stepless height adjusting mechanism of the lever on grilling pan, said grilling pan has an upper grilling pan and a lower grilling pan, said stepless height adjusting mechanism comprises a lever, said lever is articulated with an articulated shaft of the rear portion on the lower grilling pan with an articulated portion and fixed to the upper grilling pan;

• wherein said stepless height adjusting mechanism further comprises a lifting pin, a cam and a knob;
• said cam is disk-shaped element with a gradually increasing diameter and rotates around a fixed shaft disposed on the rear portion of the side of the lower housing, the inside of the articulated portion of said lever is fixed with a skew surface wall, the distance between said skew surface wall and the articulated shaft of the rear portion of the lower grilling pan increases gradually, said lifting pin is disposed between the cam and the skew surface wall, moves up and down between them and leaned against the outer peripheral surface of the cam and the skew surface wall, the rotation of the knob drives the cam rotate, the rotation of the cam push the lifting pin move up and down, so the stepless height adjustment of the lever is realized.