Secondary lifting structure

The invention belongs to the technical field of lifting machines of motor vehicles, and particularly relates to a secondary lifting structure. The secondary lifting structure is good in use effect. The secondary lifting structure (23) comprises a sub-platform outer support arm assembly (23-20) and a...

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Bibliographische Detailangaben
Hauptverfasser:	ZHONG JINGYU, ZHANG YUEYANG, BING CHANGSONG, HOU YONGJIE, LI HE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	HAULING 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 LIFTING PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention belongs to the technical field of lifting machines of motor vehicles, and particularly relates to a secondary lifting structure. The secondary lifting structure is good in use effect. The secondary lifting structure (23) comprises a sub-platform outer support arm assembly (23-20) and a sub-platform inner support arm assembly (23-28), and is characterized in that the cross section of a support arm in the sub-platform outer support arm assembly (23-20) and the sub-platform inner support arm assembly (23-28) is of a rectangular structure, and a sub-platform platen assembly (23-29) is arranged at the upper end of the sub-platform outer support arm assembly (23-20) and the upper end of the sub-platform inner support arm assembly (23-28); and a piston rod of a sub-platform main cylinder (16) is connected with a sub-platform inner support arm assembly (23-28) through a sub-platform oil cylinder upper shaft (23-9), and the cylinder head end of the sub-platform main cylinder (16) is connected with the su