Folding hinge, folding cross beam, calibration equipment and calibration system

Abstract

The embodiment of the invention relates to the technical field of automobile calibration devices, in particular to a folding hinge, a folding beam, calibration equipment and a calibration system. The folding hinge comprises a base, two hinge units and two workpiece supports. The workpiece support is folded and unfolded through the hinge unit. The folding hinge is folded upwards to be stored, so that when the folding hinge is applied to a folding beam, the folding beam is not limited by space to be folded and stored. The hinge unit comprises a one-way bearing and a damping assembly which are rotationally connected, and the one-way bearing is connected with the fixing shaft through a fixing piece. The damping assembly is connected with the rotating piece, and when the damping assembly is driven by driving force in the folding direction, the rotating piece is driven to rotate in the folding direction. And when being driven by the driving force in the unfolding direction, the relative rotating piece rotates towards the unfolding direction. When no driving force is applied, the one-way bearing is locked, the damping assembly limits the workpiece support and the workpiece to rotate in the unfolding direction through the damping effect, the workpiece support and the workpiece can suspend at any angle, and the safety problem caused by free falling is avoided.