Lifting device

The utility model discloses a hoisting device. The hoisting device comprises a device main body, the device is characterized in that the device body is provided with lifting units and a take-up and pay-off unit, the two connecting ends of each lifting unit are connected with the device body, and ropes at least as many as the lifting units are led out of the take-up and pay-off unit. The rope is used for hanging the device body after being wound around the lifting unit by at least one circle, and the take-up and pay-off unit controls the device body to ascend and descend by taking up and paying off the rope. According to the scheme, the problems that the length of a rope needs to be at least two times of the lifting height of the device main body due to a fixed pulley structure when an existing lifting device carries out lifting operation, and the overall cost of the device is high can be solved. 本实用新型公开一种吊升装置，包括装置主体；其特征在于，所述装置主体设置有提拉单元以及收放线单元，所述提拉单元的两个连接端分别与所述装置主体连接，所述收放线单元引出至少与所述提拉单元数量相同的绳索，且所述绳索在缠绕所述提拉单元至少一