Spring power device

The invention relates to a spring power device. The spring power device is provided with a power shell body, wherein a main shaft and an auxiliary shaft are arranged side by side in the power shell body. A chain wheel a is fixedly arranged on the outer end portion of one side of the main shaft, and a spring assembly a and a spring motor a are arranged in cooperation with the chain wheel a; a powershort shaft is further arranged in parallel with the main shaft, a chain wheel b is fixedly arranged at the outer end portion of the power short shaft, and a spring assembly b and a spring motor b are arranged in cooperation with the chain wheel b; a gear A is installed at the other end, located outside the power shell body, of the main shaft, a gear shaft cylinder A is installed at the position,between the gear A and the spring assembly a, of the main shaft, and a gear B, a chain wheel c and a gear C are sequentially installed on the gear shaft cylinder A; and a gear shaft cylinder B on thesame side of the gear shaf