Anti-collision sweeping mechanism of road sweeper and road sweeper

An anti-collision sweeping brush mechanism of a road sweeper comprises a sweeping brush support, a brush disc, a swing arm, a stay wire mechanism, a longitudinal anti-collision mechanism, a first transverse anti-collision mechanism and a second transverse anti-collision mechanism. One end of the swing arm is hinged with the sweeping brush bracket, and the other end is connected with the brush disc; the wire drawing mechanism is mounted on the sweeping brush bracket, and the swing arms on the two sides synchronously contract towards the inner side through the wire drawing mechanism; the longitudinal anti-collision mechanism is installed on the swing arm, and when the brush disc is impacted right ahead, the brush disc is buffered through the longitudinal anti-collision mechanism; the first transverse anti-collision mechanism is installed between the sweeping brush support and the swing arm, and when the brush disc is impacted by the outer side, the brush disc is buffered through the first transverse anti-collis