Signboard with data traceability function

The utility model discloses a signboard with a data traceability function. Including a metal cylinder, a transparent traceability nameplate is embedded in the side wall of the metal cylinder; the outer wall of the top end of the metal cylinder is rotationally connected with a rotating disc; the bottom end of the rotating disc penetrates the outer wall of the top end of the metal cylinder. The bottom end of the rotating disc is rotationally connected with a damping telescopic rod. A supporting rod is fixed at the bottom end of the damping telescopic rod through a bolt; the bottom end of the supporting rod penetrates through the outer wall of the bottom end of the metal cylinder and is fixedly provided with a supporting disc through a bolt, fixing supports are welded to the two sides of thewinding drum, the side walls of the two fixing supports are sleeved with light-transmitting cloth strips, strip-shaped holes are formed in the outer walls of the two sides of the metal cylinder, and one sides of the two light