The invention relates to a lift type movable top cover of a trailer van. The lift type movable top cover of the trailer van is characterized in that the lift type movable top cover comprises a top cover framework (1) and a side wall frame (4) welded to the periphery of a frame, telescopic outer beams (5) are fixedly arranged on the side wall frame (4), oil cylinder bases (9) are arranged on the side wall frame (4) below the telescopic outer beams (5), hoisting oil cylinders (8) are fixedly arranged on the oil cylinder bases (9), telescopic inner beams (6) are mounted on piston rods of the hoisting oil cylinders (8), the telescopic inner beams (6) are inserted into the telescopic outer beams (5) and connected with the top cover framework (1), and distribution throttling valves (10) used for guaranteeing oil cylinder synchronism and a hydraulic direction-changing valve (11) used for controlling lifting of the oil cylinders are arranged on the oil path of the hoisting oil cylinders (8). The lift type movable top cover of the trailer van is suitable for large trailer vans, and the lifting synchronism of the movable top cover is good.
Lift type movable top cover of trailer van
2015-10-14
Patent
Elektronische Ressource
Englisch