The invention discloses a telescopic bridge of an aerial working cart. The telescopic bridge comprises two telescopic oil cylinders. The two telescopic oil cylinders are arranged between two wheels of a chassis, one end of each telescopic oil cylinder is connected with the corresponding wheel, and the other end of each telescopic oil cylinder is connected with a limiting device. Each limiting device comprises a limiting shaft and a limiting block, the limiting shafts are connected with the ends of the telescopic oil cylinders and are tangent to the inner surfaces of the limiting blocks, and the limiting blocks are welded to a baffle of the chassis. The telescopic bridge is larger in extension length; the limiting devices arranged on the telescopic bridge guarantee safe equipment operation after the oil cylinders are widened and extended, and an additionally-arranged telescopic tube and an additionally-arranged travel switch further guarantee safe operation in the oil cylinder travel; and by adopting electrical programming for controlling telescoping of the oil cylinders, safe equipment start and operation are guaranteed.
Telescopic bridge of aerial working cart
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 |