Sunshade mechanism of crane cab

The utility model relates to the technical field of crane sunshade, and discloses a sunshade mechanism of a crane cab, which comprises a mounting plate, the bottom of the mounting plate is bolted with the top of an outer cover of the cab, a shell is arranged on one side of the mounting plate, and a guide plate is welded on one side of the shell. A guide groove in sliding connection with the guide plate is formed in one side of the mounting plate, a storage roller is rotationally connected to the interior of the shell through a bearing, sunshade cloth is tied to the surface of the storage roller, one end of the storage roller extends to the exterior of the shell and is fixedly connected with a motor in a sleeving mode, and two fixing blocks are mounted at the other end of the sunshade cloth; a balance weight roller is rotationally connected between the two fixing blocks through a bearing. The sunshade device has the advantages of being good in sunshade effect, avoiding occupying limited space in a cab, being s