Three-dimensional sweeping and brushing device of road sweeper

The invention discloses a three-dimensional sweeping and brushing device of a sweeping machine, and belongs to the technical field of sweeping machines, the three-dimensional sweeping and brushing device comprises a lifting swing connecting frame, a lifting assembly and a top surface cleaning rolling brush assembly, the end part of the lifting swing connecting frame is respectively connected with the lifting assembly, a rotary suction port assembly and an inclined lifting positioning trolley assembly; the rotary suction port assembly and the inclined lifting positioning trolley assembly are horizontally arranged side by side, the lifting assembly and the rotary suction port assembly are arranged in an up-down corresponding mode, the execution end of the lifting assembly is connected with the top of the rotary suction port assembly, and one side of the lifting swing connecting frame is connected with the ground disc brush assembly. The ground disc brush assembly corresponds to the inclined lifting positioning