▎ 摘　　要

NOVELTY - The utility model model relates to the technical field of detecting device, and claims a cerium ion detecting device based on print aggregate graphene the left side of the shell is provided with a lower box body, the upper side of the lower box is fixedly installed with four fixing rod, four fixing rod of the movable sleeve is provided with an upper box body, the left wall of the lower box body is provided with a through groove a, the right wall of the lower box body is provided with a wire groove b, the back side wall of the upper box is fixedly installed with a rotating motor, the back wall of the upper box is movably penetrated with a rotating rod upwards moving the upper box body, then the wire needed to be connected with the shell passes through the wire groove a and the wire groove b and then connected with the shell, then downwards moving the lower box body, then by opening the rotating motor can drive the rotating rod to rotate left and right, so as to drive the rotating roller to rotate, so as to make the rotating roller rotate left and right to drive the lead passing through the wire groove a to move left and right, so as to receive and retract the lead, Therefore, it is convenient for the user to arrange the lead and has beautiful effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the cerium ion detecting device graphene on print aggregate to claim.