Transmission mechanism for adjusting opening and closing of blades and expansion machine thereof

The utility model provides a transmission mechanism for adjusting opening and closing of blades and an expansion machine of the transmission mechanism. The first gear teeth are meshed with the second gear teeth; and a rotating frame; wherein the first gear teeth are arranged on a power output shaft of the adjusting motor, and the adjusting motor drives the first gear teeth to rotate to drive the rotating frame provided with the second gear teeth to rotate. The first gear teeth are pre-designed on the rotating frame, meanwhile, the second gear teeth are pre-designed on the rotating frame, power transmission of the adjusting motor is achieved through the meshing relation of the first gear teeth and the second gear teeth, and therefore the rotating frame rotates, the adjusting blades rotate along with the rotating frame, and the expected opening and closing function between the adjusting blades is achieved. The automatic blade adjusting function is achieved. 本实用新型提供了一种调节叶片开合的传动机构及其膨胀机，传动机构包括：调节电机；第一轮齿与第二轮齿，所述第二轮