Tower crane device based on engineering pile

The invention relates to the field of tower crane equipment, in particular to a tower crane device based on engineering piles, which is characterized in that a positioning frame is respectively propped against the adjacent engineering piles, a positioning rod is hinged to one side of the positioning frame, the tail end of the positioning rod is connected with a supporting flat plate, a ball hole is formed in the center of the supporting flat plate, and a ball seat is welded to the center of the bottom of the supporting flat plate; a hollow ball rod is installed in the middle of the bottom of the regulation and control platform, a hollow ball rod cavity extends to the upper end face of the regulation and control platform, the hollow ball rod is inserted into the ball hole, an ejector rod for longitudinally limiting the regulation and control platform is arranged under the regulation and control platform, the ejector rod is installed in the supporting flat plate in a threaded fit mode, and a through hole is for