Automatic device that opens and shuts of goods railway carriage or compartment tarpaulin auto -lock back skating formula

The utility model belongs to the technical field of goods railway carriage or compartment roof mechanism, automatic device that opens and shuts of goods railway carriage or compartment tarpaulin auto -lock back skating formula is including slide rail, capstan winch, hawser, covering or awning on a car, boat, etc. Frame and hawser sliding lock, wherein, the slide rail arranges respectively in goods railway carriage or compartment both sides that the hawser is drawn forth the back -porch slide rail by the capstan winch and is caused goods railway carriage or compartment end and draw back the capstan winch, and the hawser sliding lock is installed with slide linkage in covering or awning on a car, boat, etc. Frame lower part, it buckles and passes the hawser sliding lock to be provided with the knot on the hawser, the tarpaulin prop that the roller is located before the hood frame and with the capstan winch linkage, the tarpaulin props the roller surface and is provided with anti -skidding tooth, the utility mod