Double-layer grilling device

A double-layer grilling device, comprising:

• a base with two supporting brackets;
• a pan component rotatably disposed between the two supporting brackets, comprising:
• a lower pan unit with a first cooking surface on a top thereof, and a lower handle on one end thereof, the lower handle having a lower flange;
• an upper pan unit with a second cooking surface on a bottom thereof, and an upper handle on one end thereof, the upper handle having an upper flange;
• and
• a middle pan unit with two cooking surfaces, one on a top thereof and another on a bottom thereof, the middle pan unit further having a groove that accommodates the upper flange and the lower flange therein,
• a double-metal pieces mechanical temperature controller for adjusting a temperature of the respective pan units and being disposed in the middle pan unit, and comprising a rotatable bronze axle;
• a knob that is rotatable about an axis, and is linearly movable along the axis to a locked position and to a released position, and
• a rotating shaft disposed between and connected to said knob and said bronze axle,
• wherein when said knob is in the locked position and rotated about the axis, said rotating shaft and said bronze axle are caused to rotate, to thereby adjust said temperature controller and change the temperature of said pan component,
• wherein when said knob is in the locked position, the knob is sleeved over the groove and the upper and lower flanges, to lock the lower pan unit, upper pan unit and middle pan unit together, and
• wherein when said knob is in the released position, the knob moves away from the groove and the upper and lower flanges, to allow the lower pan unit and upper pan unit to be moved away from the middle pan unit.