Mounting structure for externally-hung movable construction platform of building machine

The utility model belongs to the technical field of buildings, and particularly relates to a mounting structure of an externally-hung movable construction platform for a building machine. The construction platform comprises a top construction platform steel frame structure, an overhanging steel beam structure and an externally-hung construction platform. Equal module mounting holes are formed in the construction platform steel frame structures and the cantilever steel beam structures, and the cantilever steel beam structures are connected with the outer side of the top construction platform steel frame structure through matching of a plurality of groups of equal module mounting holes, screws and nuts; equal module mounting holes are also formed in horizontal steel beams of the externally-hung construction platform, and the externally-hung construction platform is hung on the cantilever steel beam structure and is positioned through cooperation of the equal module mounting holes, screws and nuts. The cantileve