Cleaning device for semitrailer carriage

The utility model discloses a cleaning device for a semitrailer carriage, which belongs to the technical field of carriage cleaning and comprises a gun barrel, a first end of the gun barrel is connected with a water delivery pipe, and a second end of the gun barrel is connected to a first end of a connector; the first end of the rotating joint is rotatably connected with the second end of the connecting joint, and a driven fluted disc is fixed on the outer surface between the first end and the second end of the rotating joint; the upper end of the spray head is connected with the second end of the rotating joint; according to the vehicle-mounted washing device, the gun barrel is manually driven to move back and forth outside a compartment, and the washing work in the compartment can be completed by adjusting the position of the spray head in the compartment; the driving motor drives the driven fluted disc to rotate through the driving fluted disc, and 360-degree rotating flushing operation can be conveniently