Main load lifting mechanism for domestic has two rigid fixed supports equipped with two cylindrical guides to form rigid frame, with main force lifting screw installed between two laths interconnecting fixed supports

摘要

The main load lifting mechanism for domestic use consists of two rigid fixed supports (1,2) which are interconnected by rigid laths (3,4). The fixed supports are equipped with two cylindrical guides (5,6) which form a rigid frame, with a main force lifting screw (7) installed between the two laths.