Friction lifting trolley

The utility model discloses a friction lifting trolley which comprises a trolley body, a bearing platform, a stacking chain mechanism and a shear type lifting mechanism, the trolley body is arranged on a walking track in a sliding mode, an installation groove is formed in the trolley body, and a sliding groove is formed in the bottom wall of the installation groove; the bearing platform is arranged in the mounting groove; the stacking chain mechanism comprises two stacking assemblies, the two ends of each stacking assembly are a fixed end and a sliding end correspondingly, the fixed ends are connected to the bottom of the bearing platform, the sliding ends are slidably arranged in the sliding grooves and make rolling contact with the steel rails, and when the trolley body slides towards the middle of the extrusion section, the steel rails are extruded to push the two rolling wheels to be close to each other. And the two rollers push the corresponding stacking chains to drive the bearing platform to ascend. Th