The invention discloses a lifter which is simple in structure and small in installation height. The lifter mainly comprises a middle installing piece, a small lead screw, a big lead screw, a small nut, a big nut and a rotating piece, the rotating piece is arranged on the middle installing piece and is capable of rotating axially, the small nut is fixedly connected at one end of the rotating piece, the bod nut is fixedly connected at the other end of the rotating piece, the small nut is in thread fit with the small lead screw, the big nut is in thread fit with the big lead screw, the big lead screw is of a hollow structure, the big lead screw is sleeved with the rotating piece, and the small lead screw is arranged inside the big lead screw in a sleeved mode.
Lifter
2015-11-11
Patent
Elektronische Ressource
Englisch
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |