The utility model relates to the technical field of pitaya planting, in particular to a cold-proof
protection mechanism for pitaya planting, which comprises a
greenhouse framework, a film, a heating component and a cleaning component, the cleaning component comprises a cleaning
brush plate, two fixing racks, a driving gear, a
power component and a connecting component, the two fixed racks are oppositely arranged on the upper surface of the film respectively, the two fixed racks are meshed with driving gears respectively, the two driving gears are connected with power components respectively, a connecting component is arranged between the two power components, and the cleaning
brush plate is connected with the connecting component and located on the upper surface of the film. The
power component is started, the driving gear is driven to rotate, then the driving gear moves along the fixed rack, the
power component, the connecting component and the cleaning
brush plate are driven to move along the fixed rack, namely along the surface of the film, the cleaning brush plate cleans the surface of the film, manual operation is not needed, and manpower is saved.