Telescopic stabilizing frame for bearing side load of crane

The utility model discloses a side-load-bearing telescopic stabilizing frame of a crane. Relates to hoisting equipment. Comprising a foundation frame, the tail of the foundation frame is hinged to a stand column of the crane through a connecting shaft, and a first sliding cavity is formed in the head end of the foundation frame; the tail of the first-stage telescopic frame is matched with the first sliding cavity, the first-stage telescopic frame is arranged in the first sliding cavity in a sliding mode, and a second sliding cavity is formed in the head end of the first-stage telescopic frame; the tail part of the second-stage telescopic frame is matched with the sliding cavity II, the second-stage telescopic frame is arranged in the sliding cavity II in a sliding manner, and the head end of the second-stage telescopic frame is hinged with the arm head of the telescopic arm through a connecting frame. Specifically, a third sliding cavity is formed in the head end of the second-stage telescopic frame; the tail