The invention discloses a heavy type jack which comprises a positioning seat. A driving part is arranged on the positioning seat and fixedly connected with a supporting part, a first driving rod and a second driving rod are arranged on the driving part, a supporting column is telescopically arranged on the top of the supporting part, the first driving rod and the second driving rod are on one straight line and are perpendicular to the supporting column, and the diameter of the supporting column is not smaller than 10 cm. According to the heavy type jack, the independent driving part and the supporting part are arranged on a jack body, the two driving rods used for driving are arranged on the driving part, the supporting column with the large radius is arranged on the supporting part, and thus the hoisting weight of the jack is greatly increased.
Heavy type jack
2015-06-17
Patent
Electronic Resource
English
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 |