Retractable data line device

The utility model discloses a data line device capable of being wound, which relates to the technical field of data lines and comprises a shell, a winding roller is arranged in the shell, a flat spiral spring is arranged between the winding roller and the shell, and a data line body is wound on the winding roller. A ratchet wheel is arranged at the first end of the winding roller, a pawl is arranged in the shell and comprises a sector gear part, the sector gear part is meshed with a rack, a first spring is arranged in the shell, and the first spring is connected with the rack; a rotating frame is arranged at the second end of the winding roller, a centrifugal block capable of rotating relative to the rotating frame is arranged on the rotating frame, an elastic element is connected between the rotating frame and the centrifugal block, a damping part is arranged on the shell, and the centrifugal block can make contact with the damping part under the action of centrifugal force. According to the embodiment of th