The utility model relates to the technical field of
crane equipment, in particular to a container portal crane sling anti-collision device which comprises a trolley and a
winch, the
winch is arranged on the trolley, a steel
wire rope is wound on the
winch, a fixing plate is arranged on the trolley, and two first buffer assemblies are symmetrically arranged at the bottom of the fixing plate. A second buffering
assembly is arranged on the first buffering
assembly, the fixed end of the steel
wire rope is fixedly connected with a supporting plate, and a movable plate is arranged above the supporting plate. According to the utility model, through the arrangement of the first buffer
assembly and the second buffer assembly, when the lifting appliance has a top collision phenomenon, the
impact on the lifting appliance is buffered, the
impact of the lifting appliance on the trolley is reduced, the collision damage of the lifting appliance and the trolley is avoided, and the use and maintenance cost is reduced; the first buffering assembly and the second buffering assembly act in sequence, multi-stage buffering is achieved, the buffering capacity is improved, the buffering time is prolonged, and
impact is greatly reduced.