Connecting piece and chip heat dissipation device

The utility model relates to a connecting piece and a chip heat dissipation device, the connecting piece comprises a connecting part, a first sleeve part and a second sleeve part, and the first sleeve part is connected with the connecting part; the second sleeve part is configured to be in sliding connection with the first sleeve part, the second sleeve part is arranged on the outer side of the first sleeve part in a sleeving mode, the inner wall face of the second sleeve part and the outer wall face of the first sleeve part are arranged in a conformal mode, and the second sleeve part is connected to the side, away from the connecting part, of the first sleeve part. According to the connecting piece provided by the utility model, the connecting part is used for assembling and connecting external parts, and the operating length of the connecting piece is expanded through a sliding connection mode between the first sleeve part and the second sleeve part, so that an operator can abut against the connecting piece