Curved surface actuating mechanism and doll using the same

A curved surface actuating mechanism, comprising:

• a main shaft;
• a first drive unit, having a first drive wheel and a first driving member for driving the first drive wheel to rotate, wherein the first drive wheel is fitted on one end of the main shaft and independently rotates on the main shaft;
• a second drive unit, having a second drive wheel and a second driving member for driving the second drive wheel to rotate, wherein the second drive wheel is fitted on other end of the main shaft and independently rotates on the main shaft;
• a sleeve, fitted on the main shaft between the first drive wheel and the second drive wheel and independently rotating on the main shaft, wherein the sleeve has a vertical split shaft;
• a third drive unit, having a third drive wheel engaged with the first drive wheel and the second drive wheel at same time and fitted on the vertical split shaft of the sleeve, so that the third drive unit operates around the first drive wheel and the second drive wheel to form a gear set;
• and
• a curved surface, having a link lever fixed to the third drive wheel.