Plumb assembly for perpendicularity calibration

The utility model discloses a plumb bob component for perpendicularity calibration, which comprises a telescopic rod, the telescopic rod is provided with a first end and a second end, the first end is connected with a holding handle, a wire wheel is rotatably arranged on the holding handle, a pull wire is wound on the wire wheel, one end of the pull wire penetrates into the telescopic rod and then penetrates out of the second end, and the pull wire penetrates out of the second end and then is connected with a plumb bob. Stabilizing rods hinged to the telescopic rod are symmetrically arranged on the outer surface of the telescopic rod. Through the structure, a worker can conveniently place the plumb bob without walking to the edge of a building, and the safety during operation is improved. In addition, the pull wire is wound on the wire wheel during storage, so that the pull wire can be quickly released during use next time. 本实用新型公开了一种垂直度校准用铅锤组件，包括伸缩杆，所述伸缩杆具有第一端和第二端，第一端连接握持柄，握持柄上可转动设置线轮，线轮上绕设牵引线，牵引线一端穿入伸缩杆后由第二