近几年来,随着国家对起重机械安全工作的重视,起重机械事故呈高发态势的情形有所好转,但总体仍然较高。据统计,2009年,全国特种设备事故率为0.92起/万台、死亡率为0.76人/万台,形势十分严峻。起重机械应用广泛,主要用于工厂车间、建筑工地等地方,由于其使 In recent years, with the country’s attention to the safety of hoisting machinery, hoisting machinery accidents have shown a tendency of high incidence. However, the overall situation is still high. According to statistics, in 2009, the accident rate of special equipment in the country was 0.92 and the death rate was 0.76 person / ten thousand. The situation is very grim. Lifting appliances are widely used, mainly used in factories, construction sites and other places, because of its