Expansion mechanism and trailer thereof

The extension mechanism comprises an extension assembly, the extension assembly comprises a bearing plate, symmetrical vertical plates are fixedly arranged on the top face of the bearing plate, containing grooves are formed in the two sides of the bearing plate and the two sides of the vertical plat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YUAN ZHIGANG, QUAN HAIKUO, RAO CAI, LIU ZHIXIN, SHAO MINGBIN, FENG WUSHENG, WANG QINGFENG, WU HAITAO, LU DAZHOU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	HAND-PROPELLED VEHICLES, e.g. HAND CARTS, PERAMBULATORS LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS PERFORMING OPERATIONS SLEDGES TRANSPORTING
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Beschreibung
Zusammenfassung:	The extension mechanism comprises an extension assembly, the extension assembly comprises a bearing plate, symmetrical vertical plates are fixedly arranged on the top face of the bearing plate, containing grooves are formed in the two sides of the bearing plate and the two sides of the vertical plates, extension rods are arranged in the containing grooves in a penetrating mode, and baffles are arranged at the ends, away from the containing grooves, of the extension rods in a connected mode; and the limiting assembly comprises an inserting rod, the inserting rod is movably arranged on one side of the vertical plate, a spring is arranged in the moving space of the inserting rod and the vertical plate, an inserting hole is formed in the side face of the extension rod in a penetrating mode, the inserting rod is arranged on the vertical plate in a penetrating mode and arranged on the inner wall of the inserting hole in a penetrating mode, and the limiting assembly is arranged on one side of the extension assembly.