Side brush assembly

Abstract

Side brush assembly (10) comprising: - a mounting frame (20); - a side brush housing (31) rotatably connected to the mounting frame (20) via a rotating shaft (32), wherein a limiting groove (311) is provided on the circumferential side of the side brush housing (31) extending in the circumferential direction of the side brush housing (31); - a side brush (40) comprising a side brush body (41), a limiting shaft (42) and a bristle section (43), wherein the side brush body (41) is located inside the side brush housing (31) and is connected to the rotating shaft (32) via the limiting shaft (42); wherein the bristle section (43) is connected to the side brush body (41) and is passed through the limiting groove (311), wherein an end of the bristle section (43) protruding from the side brush housing (31) forms a cleaning end (431);- a first drive element (50) arranged on the mounting frame (20), wherein the first drive element (50) is drivenly connected to the rotating shaft (32), wherein the first drive element (50) is configured to drive the side brush housing (31) to rotate in a first direction and a second direction in order to cause the side brush (40) to rotate in the first direction and the second direction, the first direction being opposite to the second direction;- a first limiting element (71) connected to the mounting frame (20), wherein the first limiting element (71) is configured to prevent rotation of the side brush (40) in the first direction when the side brush (40) is rotated in the first direction to a first limiting position, so that the first drive element (50) can drive the side brush housing (31) to rotate further in the first direction relative to the side brush (40), thereby driving the side brush housing (31) to lift the cleaning end (431); wherein the first limiting element (71) is further configured to allow rotation of the side brush (40) in the second direction, so that the first drive element (50) can drive both the side brush housing (31) and the side brush (40) to rotate in the second direction;- wherein the side brush assembly (10) is further configured such that the side brush housing (31) can rotate in the second direction relative to the side brush (40), whereby the side brush housing (31) drives the cleaning end (431) to lower; wherein, after the cleaning end (431) has been lowered, the side brush (40) can continue to rotate in the second direction together with the side brush housing (31).;