Reflection device, reflection combination device and installation method of equipment base for measuring blind area

The invention provides a reflection device, a reflection combination device and an equipment base installation method for measuring a blind area. The lower surface of the magnetic attraction seat of the reflection device is used for being attracted to the surface of an equipment base. The first end of the stand column is fixedly connected with the upper surface of the magnetic attraction base. The extending direction of the stand column is perpendicular to the upper surface of the magnetic attraction base. The lower side of the bearing seat is rotatably connected with the second end of the stand column. The rotating plane of the bearing seat is perpendicular to the extending direction of the stand column. The laser reflection target is rotatably installed on the bearing seat, and the rotating plane of the laser reflection target is perpendicular to the rotating plane of the bearing seat. The locking device is used for locking the bearing seat to fix the position of the bearing seat relative to the stand colum