Rotating structure of power roller handle

The rotating structure comprises a front wheel assembly, a rear wheel assembly and a connecting rod connecting the front wheel assembly and the rear wheel assembly, the front wheel assembly comprises a front wheel support and a front wheel arranged on the front wheel support, and the rear wheel assembly comprises a rear wheel support and a rear wheel arranged on the rear wheel support. The two ends of the connecting rod are connected with the front wheel support and the rear wheel support respectively, clamping tooth grooves are formed in the two sides of the front wheel support, a rotating rod is arranged on the front wheel support in a penetrating mode, the two ends of the rotating rod are arranged outside the front wheel support, the rotating rod is sleeved with a gear, the gear is meshed with the clamping tooth grooves, a rotating part is further arranged on the rotating rod, and a handle is arranged on the rotating part. The rotating part is provided with a rotating tooth groove, the rotating tooth groov