The invention belongs to the technical field of carrying machines, provides a carrier, and discloses a tray truck. The tray truck comprises a frame, a fork, an operation handle, a hydraulic mechanism, a top cover and a walking mechanism. The hydraulic mechanism comprises an oil cylinder. The oil cylinder and the top cover are connected in the manner that the oil cylinder and the frame generate relative displacement in the axis direction of the fork. The oil cylinder is connected with the walking mechanism through a base. The tray truck further comprises a connecting rod mechanism connected with the base and the frame, and the connecting rod mechanism rotates relative to the base and the frame. A lifting system used for keeping the oil cylinder vertical all the time in the lifting process is formed by the connecting rod mechanism, the hydraulic system, the top cover and the base. The tray truck is suitable for electric carriers and manual carriers, the connecting rod mechanism enabling the connecting manner between the top cover and the oil cylinder and the connecting manner to be matched is adopted, so that when the oil cylinder jacks the top cover or descends, the oil cylinder is kept in the direction perpendicular to the ground, and operation stability, reliability and the energy utilization rate are improved.
Tray truck
2016-01-06
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 |