我公司于去年试制了一台折叠式三角吊架(外形见图1),曾用于建筑一幢四层四单元的住宅楼工程,经过半年多的使用,证明该机性能良好,转运方便,它是城市民用建筑中一种简便、廉价的垂直运输机具。 Last year, our company made a prototype of a folding triangle hanger (see Figure 1). It was used to build a four-storey four-unit residential building project. After more than six months of use, it proved that the aircraft has good performance and convenient transportation. It is a simple and inexpensive vertical transportation device in urban civil buildings.