Novel coupling

The invention discloses a novel coupling which comprises a coupling body I and a coupling body II, wherein the coupling body I and the coupling body II are arranged oppositely, a flat belt is fixedly connected between the coupling body I and the coupling body II through a fastener, thread holes are formed in one faces where flanges of the coupling body I and the coupling body II are on the contrary, the flat belt is bent and in a 'U' shape, location holes are formed in the two 'I' portions of the 'U' shape of the flat belt, after the thread holes and the location holes are aligned, the flat belt is fixed on the back face of the flanges of the coupling body I and the coupling body II through bolts, and cross-shaped grooves are formed in the bolts. According to the novel coupling, when the phenomenon of blocking or getting stuck of the device occurs, the flat belt is snapped, burning of a motor due to overload can be prevented, and the function of protecting the motor is achieved. Once the flat belt is damaged