Detection device for deflection of steel structure net rack and detection method thereof

The invention belongs to the field of steel structure net rack detection, and relates to the technology of deflection detection equipment, in particular to a detection device for deflection of a steelstructure net rack and a detection method thereof. The device comprises a detection platform, two sides of the top surface of the detection platform are fixedly provided with supporting frames, a guide rail is fixedly arranged on the top surface of the detection platform, four detection mechanisms are arranged on the guide rail, a plurality of drying and dust removing mechanisms are arranged on the front face of the detection platform, and each detection mechanism comprises a dial indicator, an observation scaffold and a bottom plate. The plurality of detection mechanisms can freely slide onthe guide rails through the arranged guide rails, the limiting blocks are used for limiting the bottom plate during detection, the positions of the detection mechanisms can be adjusted when deflectiondetection is conducted on