The utility model provides a tipper stereoplasm top cap with closing device is jumped in bounce -back, include stereoplasm capping mechanism, actuation transmission mechanism, be used for the restriction around the stereoplasm capping mechanism position top cap stop gear with be used for compressing tightly stereoplasm capping mechanism's top cap locking mechanism, stereoplasm capping mechanism isincluding following fore -and -aft direction folding lamina tecti, setting up at the coaster of lamina tecti both sides and set up the horizontal guide rail in the carriage both sides, and is a plurality of coaster slidable ground sets up on the horizontal guide rail, the back turbine that actuation transmission mechanism includes driving motor, reverse leading wheel, left side drive wire rope, right side drive wire rope, installed in the front two jiaos in preceding corner and the back carriage in two jiaos in carriage constructs. This tipper stereoplasm top cap with closing device is jumpedin bounce -back have the design scientific, not fragile, sealed effectual, stop to overload, the advantage of safe practicality.