Patent ID: 7341129

Claim:
A double-sided braking equipment for a door operator, the door operator comprising an axle, which is used to draw up or down a vertical roll-up door or door panel, the braking equipment being used to brake the axle of the door operator and comprising: a supporting frame firmly fixed onto a partition board of the door operator, the supporting frame comprising a plurality of guide bars; a first braking pad, which is movable in an axial direction of the axle by being guided by the guide bars; a second braking pad provided at a tail end of the guide bars; a braking component comprising an axle-connecting portion and a braking disk, the braking component being arranged on the axle of the door operator in such a way that the axle-connecting portion is movable in an axial direction along the axle of the door operator and is rotatable together with the axle of the door operator, and the braking component being arranged such that the braking disk is located between the first braking pad and second braking pad; a compression spring arranged opposite to one side of the first braking pad facing the braking component, the compression spring being used to push the first braking pad against the braking component toward the second braking pad; an electromagnet arranged opposite to the side of the first braking pad facing the braking component, the electromagnet enabling the first braking pad to be retracted such that the first braking pad is separated from the braking component in order to release the braking equipment; a first fastening ring arranged on the axle of the door operator and located on one side of the braking component facing the first braking pad, a second fastening ring arranged on the axle of the door operator and located opposite to the side of the braking component facing the first braking pad; and a fixing spring component located between the braking component and the second fastening ring, and as the braking component is movable in an axial direction along the axle of the door operator, during retraction of the first braking pad the fixing spring component pushes the braking component towards the first braking pad so as to separate the braking component from the second braking pad.