The invention relates to a machine assisting device, in particular to a remote control hydraulic jack. The remote control hydraulic jack comprises a large-cylinder cylinder barrel. A large-cylinder plunger is arranged in the large-cylinder cylinder barrel. A first working oil cavity is formed by the interior of the large-cylinder cylinder barrel and the outer side of the large-cylinder plunger and connected with an oil tank through an electric valve. A small-cylinder plunger is arranged in the large-cylinder plunger. A second working oil cavity formed by the interior of an inner cavity of the large-cylinder plunger and the outer side of the small-cylinder plunger is connected with the oil tank through a first one-way valve and connected with a hydraulic pump through an oil pressing one-way valve. The hydraulic pump is connected with the oil tank. The electric valve is connected with an infrared receiver. The remote control hydraulic jack is low in labor intensity, high in automation degree, high in working efficiency, suitable for transforming and upgrading existing equipment and suitable for use and popularization.
Remote control hydraulic jack
13.05.2015
Patent
Elektronische Ressource
Englisch
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 |