-
公开(公告)号:US10077175B2
公开(公告)日:2018-09-18
申请号:US15025390
申请日:2015-03-31
发明人: Zhiguo Lu , Ji Zou , Tian Tian , Bairen Feng , Zuotao Liu
摘要: Provided is a load-adaptive hoisting mechanism, including a bracket and roofs, wherein the roofs are arranged above the bracket, upright columns are arranged between the bracket and the roofs, through holes corresponding to the upright columns are formed in the roofs, the upright columns are arranged in the through holes, and the lower ends of the upright columns are connected with the bracket; springs sleeve the upright columns between the bracket and the roofs; roof pulleys arranged on the side surfaces of the roofs, bracket pulleys arranged on the side surfaces of the bracket, and the side surfaces of the roofs corresponding to the side surfaces of the bracket; a truncated conical roller arranged in the center above the bracket.