Double-shaft single-cam sequential opening and closing mechanism

The utility model discloses a double-shaft single-cam sequential opening and closing mechanism. The mechanism comprises a connecting block, two overturning plates, two cams and two rotating shafts, the two ends of the connecting block are connected to the two rotating shafts respectively, and the two overturning plates are installed on the two rotating shafts respectively; wherein the two cams are arranged on the two rotating shafts in a sleeving mode respectively, a plurality of wheel sawteeth are formed on the cams, the gradients of the two sides of the wheel sawteeth are different, and a plurality of barrel sawteeth clamped with the wheel sawteeth are formed at the two ends of the connecting block. According to the double-shaft single-cam sequential opening and closing mechanism, stress is dispersed through the two rotating shafts, the abrasion degree of the rotating shafts is reduced, the cams with the sawteeth with different gradients on the two sides are further arranged, the two cams can rotate in sequ