Hydraulic jack for automobile repair

The invention relates to the technical field of hydraulic jacks, and discloses a vehicle repair hydraulic jack which comprises a device base, an oil way seat and a top plate, the oil way seat is fixedly connected to the upper end of the device base, an oil cylinder is fixedly connected to the upper...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	QIAN DONGLIANG, ZHANG SILIANG, CHEN DONGMEI, LU JUNJIE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HAULING HEATING HOISTING HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD HYDRAULICS OR PNEUMATICS IN GENERAL LIFTING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to the technical field of hydraulic jacks, and discloses a vehicle repair hydraulic jack which comprises a device base, an oil way seat and a top plate, the oil way seat is fixedly connected to the upper end of the device base, an oil cylinder is fixedly connected to the upper end of the oil way seat, an oil cavity is formed in the oil cylinder in a surrounding mode, and a hydraulic groove not communicated with the oil cavity is formed in the oil cylinder. A piston ejector rod is slidably connected into the hydraulic groove, a limiting block is fixedly connected to the upper end of the piston ejector rod, a limiting groove matched with the limiting block in an inserted mode is formed in the lower portion of the top plate, and the upper end of the piston ejector rod is in threaded connection with a limiting screw for fixing the top plate. According to the lifting jack, the left shaking stress generated when the ejector rod ascends can be transmitted to the whole device for unloading, so t