The invention relates to an upper pull plate of a lifting mechanism. The upper pull plate comprises a fixing end, a transition end and a connecting end. The fixing end is in a flat rectangular shape. The connecting end is in a circular ring shape. The fixing end and the connecting end are located on the same central axis. A threaded through hole is symmetrically formed in the two ends of the central axis of the connecting end. The threaded through hole is perpendicular to the central axis. The transition section is arranged between the fixing end and the connecting end. One end of the transition section is the same as the rectangle in length, and the other end of the transition section is the same as the circle of the connecting end in diameter. The upper pull plate has the beneficial effects that the upper pull plate of the lifting mechanism is divided into the fixing end, the transition end and the connecting end, integral forming is adopted, the connecting end at the lower portion is circular, and rotation of a connecting object block cannot be limited; the included angle between straight lines on the two edges of the transition section is 90 degrees, rotation of the connecting object block is guaranteed, and meanwhile the stability of the structure of the upper pull plate is guaranteed; it is avoided that due to the over large angle, the rotating stroke of the object block is limited; and meanwhile it is also avoided that due to the too small angle, the overall structure of the upper pull plate is not firm.
Upper pull plate of lifting mechanism
2015-11-11
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 |