Auxiliary arm device of automobile crane

The utility model relates to the field of engineering machinery, in particular to an auxiliary arm device of an automobile crane, which comprises an auxiliary arm base, a hanging ring base is arrangedon one side of the auxiliary arm base, a pulley base is arranged on the other side of the auxiliary arm base, and a truss frame is arranged between the auxiliary arm base and the pulley base. The side wall of one side of the truss frame is welded to the side wall of the auxiliary arm base, the side wall of the other side of the truss frame is welded to the side wall of one side of the pulley base, a pulley is arranged on the side wall of the other side of the pulley base, and a fixing buckle base is arranged on the outer wall of the middle of the truss frame. A fixing steel plate is arrangedon the outer wall of one end, close to the auxiliary arm base, of the side wall truss frame, and a fixing hook is arranged on the side wall of the fixing steel plate. 本实用新型涉及工程机械领域，具体涉及一种汽车起重机副臂装置，包括副臂底座，所述的副臂底座的一侧设置有挂环底座，副臂底座