Bottom protective fence suitable for tower crane

The bottom protective fence comprises a tower crane base, the tower crane base is a frame of a rectangular structure, two pairs of connecting rod assemblies are arranged on the periphery of the tower crane base, and two pairs of rotating plates are hinged to the periphery of the tower crane base and connected with the two pairs of connecting rod assemblies. A protective enclosure structure is connected between the two pairs of rotating plates; the utility model relates to the technical field of tower crane linkage equipment, the bottom protective fence of the tower crane is simple in composition and convenient to disassemble and assemble, the bottom protective fence is installed by utilizing an inserting structure, an integral enclosure of a rectangular structure is formed by a corner enclosure and a rotary enclosure, the rotary enclosure plays a role of a door, and meanwhile, the rotary plate which can be folded and unfolded by utilizing a connecting assembly is utilized to enable the bottom protective fence