Brake assembly of mute tubular motor

The utility model relates to a brake assembly of a mute tubular motor, wherein the brake assembly is mounted at the tail of the tubular motor. The brake assembly comprises a brake disk, a brake sheet, a mounting base, an armature seat, a spring, an electromagnet and a brake sleeve, wherein the brake sleeve is engaged with teeth of a housing of the tubular motor, the brake disk is fixed on a rotating shaft of the tubular motor, the brake sheet surrounds the brake disk, the spring is mounted in a spring groove in the center of the electromagnet, the mounting base is engaged with teeth of the inner wall of the brake sleeve, one side of the armature seat makes contact with the spring, and the spring maintains a thrust against the armature seat; the center of the armature seat includes a sliding shaft, and the sliding shaft penetrates through a positioning hole of the mounting base; and multiple groups of splay-shaped inclined shafts are arranged on the armature seat, and the inclined shafts respectively penetrate