Connecting structure of cab platform and upper bracket of tower crane

The utility model discloses a connecting structure of a cab platform and an upper bracket of a tower crane. The connecting structurecomprises the cab platform (1) and the upper bracket (4), wherein two mounting shafts (12) are fixedly mounted on a cab platform column (11) in the cab platform, and a suspension lug (13) and a support frame (15) are fixedly mounted on an upper bracketmain chord (16) of the upper bracket; two ends of each mounting shaft extend out for enough length, so that the mounting shafts can be assembled to the suspension and the support frame of the upper bracket main chord. The suspension and the support frame are arranged on the side surface of the upper bracketmain chord, gravity of the cab platform is used skillfully, when the mounting shaft at the upper part of the cab platform is suspended to the suspension lug, the mounting shaft at the lower part of the cab platform slides into the support frame automatically, the cab platform is basically fixed, the mounting is simpler and more convenient, all that is required is single suspension and single locking, hinge pins are not required to be drilled in a mounting process, and the convenience is greatly improved.