2008年底,我国发生了两起施工电梯梯笼高处坠落、死亡10人以上的重大工伤事故,目前事故原因未见公开资料。根据现有的资料分析,事故原因可能是导轨架升高后,上限位行程开关挡块、极限开关上挡块未及时安装,司机误操作后梯笼冲顶,导致最高附墙点以上导轨架标准节的连接螺栓损坏,导轨架断裂后梯笼高处坠落,造成笼内人员伤亡。 By the end of 2008, there were two major industrial accidents involving more than 10 people in the country, which were caused by the fall of ladder cages in construction and no public information was found on the cause of the accident. According to the existing data analysis, the cause of the accident may be after the guide rail is lifted, the limit switch limit switch, the limit switch on the stopper is not installed in time, the driver misoperation after the ladder cage hoisting, leading to the highest wall points above the rail standard Section of the connecting bolt damage, after the collapse of the rail ladder ladder crate height fall, resulting in cages casualties.