Railway vehicle pull-in distance measuring device

The utility model relates to the technical field of distance measuring equipment, and discloses a railway vehicle pull-in distance measuring device which comprises an observation column, the upper surface of the observation column is provided with a containing hole for a lifting column to be inserted in a sliding mode, and the top of the lifting column is fixedly connected with a connecting base. Through cooperation of the detachable protective cover, the mounting platform and the multiple sets of positioning pieces, the distance measuring equipment is placed on the mounting platform, the multiple sets of positioning pieces abut against the bottom of the distance measuring equipment, locking bolts are screwed into threaded through holes of the positioning pieces and abut against the bottom of a bottom groove, fixing of the distance measuring equipment is completed, and the stability of the distance measuring equipment is improved; and meanwhile, the detachable protective cover is fixed through a positioning s