Vision detection device

The invention provides a vision detection device, which relates to the technical field of vision detection and comprises a bottom plate and a coupling plate, two groups of reinforcing rods are welded at the lower end of the bottom plate; four groups of mounting plates are mounted at the reinforcing rods and the lower end of the bottom plate through bolts; two groups of supporting plates are mounted at the lower end of the coupling plate, the supporting plates are located in mounting grooves in the bottom plate, the lower ends of the supporting plates are coupled to the bottom plate, a cross rod is fixed to the bottom plate, a coupling frame is welded to the coupling plate, and a hydraulic rod is mounted between the coupling frame and the cross rod; the coupling plate can be opened upwards by controlling extension of the hydraulic rod, the visual chart display is stored at the bottom of the coupling plate through the coupling plate, protection of the visual chart display is achieved, the height of the sliding