High-precision marine surveying and mapping positioning device

The utility model discloses a high-precision marine surveying and mapping positioning device which comprises a bottom plate and a fixing seat, a base is installed at the bottom of the bottom plate, a movable groove is formed in the base, a rack is installed on the inner wall of the bottom of the movable groove, a gear is installed on the top of the rack in a meshed mode, a fixing plate is installed on the inner side of the gear, and the fixing plate is connected with the movable groove. A mounting seat is mounted at the bottom of the fixing plate, a fixing seat is mounted at the top of the mounting seat, a support is mounted at the top of the fixing seat, a telescopic plate is mounted at the top of the support, and a positioning seat is mounted at the top of the telescopic plate. By installing the motor, the gear, the rack, the rotating shaft, the fixing plate and the connecting rod, the motor can drive the rotating shaft to rotate, the rotating shaft can drive the gear and the rack to move in a meshed mode,