The invention discloses a frame lifting linkage mechanism of a hand hydraulic carrier. The mechanism comprises a lever pivot shaft and a connecting rod component mounted on a frame, wherein the lever pivot shaft is coated with a rocking frame; a rocking arm and a rocking block are arranged on the rocking frame at intervals; the rocking arm is hinged with a carrier support base; the connecting rod component consists of a pull rod and connecting heads; the connecting head at one end is hinged to a bracket plate of a carrier fork wheel through a conversion block; the connecting head at the other end of the connecting rod component is connected to the rocking block through a linkage pull plate; one end of the linkage pull plate is hinged with the connecting heads of the connecting rod component; a long hole is formed in the other end of the linkage pull plate, and is connected with the rocking block by a slide pin pair; a smooth corner is arranged on the linkage pull plate near the middle part, and is hinged with a stop plate; and the stop plate is fixedly connected to the frame. The mechanism changes the stress mode of the connecting rod component, reduces the deformation of the connecting rod component, prolongs the service life of whole carrier, and is simple in structure and convenient for machining and manufacturing.
Frame lifting linkage mechanism of hand hydraulic carrier
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 |
Double-parallel four-connecting-rod linkage hydraulic lifting mechanism
European Patent Office | 2023
|European Patent Office | 2023
|