Ground-attaching cleaning device

The utility model discloses a ground-attaching cleaning device. A brush is arranged below the brush disc; a via hole is formed in the first movable connecting piece; the telescopic push rod can be switched between a retraction state and a maximum extension state; the head of the telescopic push rod is provided with a second movable connecting piece capable of sliding in the through hole. The sliding direction is the same as the telescopic direction of the telescopic push rod; wherein the brush disc moves between a first position and a second position under the action of the telescopic push rod; when the brush disc is located at the first position, a height difference exists between the brush and the ground, and the telescopic push rod is in a retracted state; when the brush disc is located at the second position, the telescopic push rod is in a maximum extension state; when the telescopic push rod is in the maximum extension state, the brush disc can drive the first movable connecting piece to slide in the di