Stable truss connecting piece for aluminum alloy climbing frame

The utility model relates to a stable truss connecting piece for an aluminum alloy climbing frame, and belongs to the technical field of climbing frame connecting pieces. Comprising a connecting shell and a truss body, sleeves used for connecting a first climbing frame column and a second climbing frame column are fixedly installed at the two ends of the connecting shell, a fixing groove is formed in the connecting shell, a notch is formed in one side of the connecting shell, the notch communicates with the fixing groove, a fixing block is arranged in the fixing groove, a connecting block is arranged in the notch, and the connecting block is connected with the connecting shell. The truss body is arranged on the outer side of the notch, one end of the connecting block is fixedly connected with the fixing block, and the other end of the connecting block is fixedly connected with the truss body. A fixing plate is fixedly arranged on the outer side of the fixing groove, and the side, close to the connecting shell