目前,我国高层建筑工程施工现场的垂直运输和上、下人基本都是采用建筑物外附着单、双笼施工电梯,但是,电梯与建筑物进出连接上料平台安全门的安装和使用大多是在钢管架体上焊接平开钢栅栏门,在平台门的外侧用钢筋棍插销关闭。这种安装门的方法不但麻烦,而且对架体进行焊接,破坏钢管母体,由于平台门的开、关都要由电梯 At present, the vertical transportation and the upper and lower people in the construction site of high-rise building in our country basically adopt the single and double-cage construction elevators attached outside the building. However, the elevator and the building are connected and connected with the loading platform. The installation and use of security doors are mostly in Steel pipe body welded flat open steel fence door, outside the platform door with steel bar latch off. This method of installing the door is not only troublesome, but also welded to the frame body, destroying the steel pipe matrix, as the platform door open, close by the elevator