A safety tensioning device for automobile comprises a winding assembly disposed on the base and driven by a main shaft, the winding assembly and a coil spring; a stop plate and a pressing plate disposed respectively at the front end and the rear end of the...

A multi-stage transmission tensioning device for automobile safety comprises a base group (1), a handle group (2) and a multi-stage transmission group (3); the multi-stage transmission group (3) comprises a transmission shaft (25) for pivoting both with th...