The present application relates to the technical field of construction positioning and line laying, and particularly relates to a positioning and line laying device and
system. The present application comprises a
lime bin, a wheel and a
handle, the
lime bin and the wheel are rotationally connected, the
handle is rotationally connected with the wheel, further comprises a measuring
assembly, the measuring
assembly is connected on the wheel, the
lime bin comprises a feeding port and a discharging port, a stirring
impeller is rotationally arranged at the discharging port. The lime bin and the wheel are controlled and pushed by the
handle, the operation is simple, a single person can operate, the flexibility is high, the traditional line laying and lime spreading trolley can be replaced, the line laying work is suitable for various terrains and environments, the measuring
assembly is used for recording the actual movement distance and movement track of the line laying device, computer identification and recording are facilitated, subsequent construction reference is facilitated, the stirring
impeller is beneficial to lime spreading in the lime bin, reduces problems such as blockage, and makes the lime spreading uniform and clear.