High performance double -guide jack

• Main Author: ZHOU NANLIN
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2017
• Subjects: HAULING; HOISTING; HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD; LIFTING; PERFORMING OPERATIONS; TRANSPORTING

The utility model discloses a high performance double -guide jack, including hydro -cylinder, piston assembly, hollow wrap and seal assembly, the rear end cap is installed to hydro -cylinder one end, piston assembly includes piston head and piston rod, the outer wall of piston head and hydro -cylinder contact is equipped with two guidance tapes, piston head outer wall between two guidance tapes adopt the hole with notch cuttype sealed combinatorial sum hole with abundant sealing oil cylinder inner wall of two kinds of sealed compound modes of square sealed combination and piston head contact surface, adopt the axle with square sealed combination between piston rod and the hollow wrap, the rear end cap inside and outside wall adopts the axle with the sealed combination of notch cuttype, fully seals rear end cap and hydro -cylinder contact surface and rear end cap and hollow wrap's contact surface. Multiple sealed compound mode is taked to structure more than adopting, and multiple protection ensures that hydra