Special device for surveying and mapping banded topographic map for railway engineering survey

The invention provides a special device for surveying and mapping a strip-shaped topographic map for railway engineering survey, and relates to the technical field of surveying and mapping. An equipment drawer is arranged at the bottom of the inner side of the supporting shell through sliding connection, and a surveying and mapping instrument and a drawing tool are arranged in the equipment drawer; a top groove is formed in the inner side of the top of the supporting shell, and a drawing drawer is arranged on the inner side of the top groove in a sliding connection mode. A top table is fixedly connected to the top end of the supporting shell, and a coiled material roller is rotationally connected to the vertical face of the bottom end of the top table. The linkage gear drives the upper transmission wheel and the lower transmission wheel on the left side to synchronously and reversely rotate, the transmission wheels can drive the tooth grooves on the upper side and the lower side for conveying, polyester films