Brake block return means of caliper disc type auto brake

The utility model discloses a brake block return means of caliper disc type auto brake, friction disc and return spring including the brake disc bilateral symmetry, be equipped with the same single steel wire dysmorphism compression spring between the surperficial both ends in friction disc top of symmetry respectively, single steel wire dysmorphism basic configuration that compression spring has (img file='DDA0000746031480000011. TIF'wi='107'he='81' /) to appear, these spring both ends are equipped with the end of inserting the surperficial spring mounting hole in friction disc top perpendicularly respectively, the mid portion of this spring and the both sides part of connecting the mid portion both ends respectively depend on the friction disc top surface of symmetry, axle center apart from the centre of a circle distance that is greater than the spring mounting hole that two friction discs correspond under the return state of both ends head under single steel wire dysmorphism compression spring free state. The special -shaped compression spring of list steel wire is in compression state at friction disc braking in -process, can assist return spring to make rapid, the complete return of friction disc when the friction disc return to the not thorough phenomenon of friction disc return has been avoided thoroughly. The drying device provided by the utility model has advantages of simple structure and practicability.