US Patent 11226174 Sight adjuster

The present disclosure provides a sight adjuster. The sight adjuster includes a frame, a horizontal clamping mechanism disposed on the frame, a vertical clamping mechanism disposed on the frame, and an adjusting mechanism disposed on the frame. The vertical clamping mechanism includes an upper fixing portion and a lower fixing portion. The lower fixing portion is disposed on a bottom portion of the frame. The lower fixing portion includes a lower driving piece, a support board and a bracket hinged to the support board. The lower driving piece drives the bracket to move along a vertical direction.