This utility model relates to a lifting device, and more particularly to a six-guide-column lifting device, comprising a base plate, a first lifting plate, a fixed plate, and a second lifting plate, and further comprising a driving component, a lead screw and nut
assembly, guide columns, and guide sleeves. The driving component is fixed to the base plate and drives the lead screw and nut
assembly. The first lifting plate is driven by the lead screw and nut
assembly, and the top end of the lead screw and nut assembly is rotatably connected to the fixed plate. The guide columns include a first guide column and a second guide column, both parallel to the lead screw and nut assembly. The bottom end of the first guide column is fixed to the base plate, and the top end of the second guide column is fixed to the first lifting plate, and the top end is fixed to the second lifting plate. The technical solution of this utility model uses three guide columns as the main power guide for the driving component to drive the lead screw and nut assembly, and the other three guide columns as the driven guides for the lifting device, effectively increasing the stability of the overall structure while simplifying the overall cost and
processing difficulty.