Roller door

Abstract

A roller door includes a roller door motor and an operation switching device. The roller door motor includes an outer coil wheel, an inner driving wheel, a clutch pin, and a cable connected to the clutch pin. The inner driving wheel has several holes. If the clutch pin is inserted into one of the holes, the rotating inner driving wheel will drive the outer coil wheel to rotate. If the clutch pin is not inserted into any one of the holes, the inner driving wheel will not drive the outer coil wheel to rotate. The operation switching device includes a pull string switch having a wireless receiving module and a driving module. The wireless receiving module is for receiving a first wireless signal and a second wireless signal. The driving module pulls the cable according to the first wireless signal to separate the clutch pin from the holes. The driving module releases the cable according to the second wireless signal to insert the clutch pin into one of the holes. Figure 4