Positioning device for mounting anti-seismic support for building

The utility model relates to the technical field of anti-seismic supports, and discloses a positioning device for mounting an anti-seismic support for a building, which comprises a moving seat, a positioning frame is arranged on the upper portion of the moving seat, a moving block is arranged in the positioning frame, a screw is arranged in the positioning frame, threads on the left side and the right side of the screw are symmetrically arranged, and the moving block is arranged in the screw. The anti-seismic support comprises an anti-seismic base, a movable block is arranged on the anti-seismic base, a threaded rod is arranged on the movable block, the threaded rod is in threaded connection with the movable block, a rotating disc is arranged on the right side of the threaded rod, adjusting frames are arranged on the front side and the rear side of the movable block correspondingly, and the upper portions of the adjusting frames are movably connected with placing bases. The anti-seismic support can be better