Greenhouse water collecting tank cleaning tool

The utility model discloses a cleaning tool for a water collecting tank of a greenhouse, and relates to the field of agricultural machinery, the cleaning tool comprises greenhouses and a water collecting tank arranged between two adjacent greenhouses, and further comprises a beam type displacement mechanism and a cleaning mechanism, the beam type displacement mechanism comprises a ceiling, a U-shaped seat and a driving assembly, the ceiling is arranged above the water collecting tank, and the U-shaped seat is arranged above the water collecting tank. The double-shaft motor and the reduction gearbox are matched to drive the track wheels to rotate, the track wheels enable the U-shaped seat, the mounting plate and the cleaning roller to axially move along the T-shaped hanger rail in the rotating process, and then the cleaning roller is driven by the large transmission wheel, the small transmission wheel and the transmission belt to move along the T-shaped hanger rail, so that the cleaning roller is driven to mov