高层建筑的电梯口需要防护,可采用一种工具式电梯防护门,构造见图1。这种电梯防护门的优点是:1.省工省料,减轻了工人的劳动强度。2.可以周转多次,提高了利用率。3.提高了电梯口的安全性,使在电梯井里工作的工人安全多了。4.可以节省大量的木料和铅丝。5.使用范围广,700～1100毫米宽的门都可 The elevator entrance of a high-rise building needs protection. A tool-type elevator protection door can be used. The structure is shown in Figure 1. The advantages of this kind of elevator protection door are: 1. Labor and materials saving, reducing the labor intensity of workers. 2. It can be turned over many times to increase the utilization rate. 3. Improve the safety of elevators and make workers working in elevator shafts much safer. 4. Can save a lot of wood and lead wire. 5. The use of a wide range, 700 ~ 1100 mm wide door can be