Patent ID: 7718055

Claim:
An automatic cleaning drain structure, wherein a drain comprises: a cover member, comprising a plurality of side strips, an end of each of which converges at a top end to form a through hole, and another end of each of the side strips is correspondingly joined to a fixing disk; a base, comprising a bottom base, which is joined to the fixing disk to form a holding space; a fan blades set installed interior of the holding space, provided with a plurality of blades to enable rotation of the fan blades set, moreover, the plurality of blades converge and are joined to an opening; and an object expeller set installed on the cover member, comprising a plurality of strip members that cover the cover member, moreover, the strip members converge and are joined to a bearing, and a wind power device extends from an end of the bearing, and another end of the bearing is joined to the opening of the fan blades set; whereby flow of water past the fan blades set and rotation of the wind power device is used to drive the bearing, and rotation of the bearing drives and rotates the strip members on the cover member to facilitate effectively removing foreign objects on the cover member, thereby achieving the objective of cleaning the drain of residual foreign objects to allow unimpeded water flow, wherein the drain further comprises a drive device installed at a bottom portion of the fan blades set to provide a rotating driving force to the strip members, thereby enabling removal of residual foreign objects.