目前,施工现场用的卷扬机由于其牵拉钢丝绳明露于地面,给施工场地的有效利用和安全生产带来极大困难,还会发生卷扬机将人卷入的恶性事故。这里介绍一种简便、易行的安装方法,具体作法见图1、2。这种 At present, the hoisting machine used on the construction site is exposed to the ground due to its pulling steel wire rope, which brings great difficulties to the effective use and safe production of the construction site, and also leads to the vicious accident that the hoisting machine involves people. Here is a simple and easy installation method. The specific methods are shown in Figure 1 and 2. This kind