Patent ID: 7817775

Claim:
An inspection system for inspecting a cargo by using radiation, comprising: a main plate conveyor; a radiation scanning unit that spans said main plate conveyor and is provided above said main plate conveyor, for scanning the cargo provided on the main plate conveyor; auxiliary conveyors that are provided at a front end and a rear end of said main plate conveyor, respectively, so as to load the cargo to be inspected onto said main plate conveyor and to unload the inspected cargo from said main plate conveyor; and lifting devices for lifting said auxiliary conveyors, each comprising an upper platform for supporting said auxiliary conveyor; and traction devices that are provided on ends of said upper platforms close to said main plate conveyor, respectively, each of the traction devices comprises: a drum; a motor for driving the drum to rotate; and a traction rope, one end of which is wound on said drum, and the other end of which drags the cargo to be inspected, so that the cargo is dragged onto the auxiliary conveyors or is dragged down from the auxiliary conveyors.