施工升降机是建筑中经常使用的载人载货施工机械，主要用于高层建筑的内外装修、桥梁、烟囱等建筑的施工。由于其独特的箱体结构让施工人员乘坐起来既舒适又安全，已被公认为高层建筑施工不可缺少的关键设备之一。施工升降机主要组成部分如下：导轨架、吊笼、传动系统、附墙架、底架护栏、电气系统、安全保护装置、电缆供电装置等。

1、施工升降机的安全开关都是根据安全需要设计的，有围栏门限位、吊笼门限位、顶门限位、极限位开关、上下限位开关、对重防断绳保护开关等。为了避免事故隐患的发生，使用单位领导应该加强管理，严格要求升降机维护和操作人员定期检查各种安全开关的安全可靠性，杜绝事故的发生。
Construction elevator safety switches are designed according to the security needs, fenced door stopper, hanging kennel limit, Dingmen limit, limit switches, upper and lower limit switches, heavy anti-broken rope protection switch. In order to avoid the occurrence of accidents, the use of unit leaders should strengthen management and strict requirements lift maintenance and operations personnel regularly check the safety and reliability of various safety switches, to prevent accidents.   

2、施工升降机各停靠层应设置停靠安全防护门。如果不按要求设置，在高处等候的施工人员很容易发生意外坠落事故。在设置停靠安全防护门时，应保证安全防护门的高度不小于1.8m，且层门应有联锁装置，在吊笼未到停层位置，防护门无法打开，保证作业人员安全。
Each stop layer construction elevator safety door stop should be set. If you do not follow the requirements set in the height of construction workers are prone to accidents waiting to fall accident. When setting docked security doors, security doors should ensure a high degree of not less than 1.8m, and the landing door interlock device should be in the position of the cage yet reached the stop layer, protective door can not be opened, to ensure worker safety.

3、施工升降机采用变频调速对制动器无磨损，任意低的就位速度，平层精度高；速度的平滑过渡，对机构和结构件无冲击，提高了升降机的安全性；几乎任意宽的调速范围，提高了升降机的工作效率；节能的调速方式，减少了系统运行的能耗等，正是因为这些明显的特点和优势，使变升降机的安全运行和减少运行能耗有重要的意义。
Frequency control of construction hoist brake wear, place arbitrarily low speed, high precision leveling; smooth transition speed of institutional and structural parts without impact, improving the safety of lifts; almost any wide speed range improve the efficiency of lift; energy-saving speed, reducing the energy consumption of the system is running, etc., precisely because of these distinctive features and advantages, so that becomes the safe operation of lifts and reducing energy consumption has important significance.