Foldable heliostat

The invention discloses a foldable heliostat. The foldable heliostat comprises a mirror surface assembly; the tensioning frame assembly is used for fixing the mirror surface assembly to form a single sub-mirror surface; a plurality of sub-mirror surfaces which are horizontally arranged are arranged in the mirror frame assembly, the adjacent sub-mirror surfaces are hinged, and the plurality of sub-mirror surfaces can be unfolded and folded in the mirror frame assembly; the rotating stand column assembly is used for realizing azimuth angle rotation, and a supporting platform is arranged on the rotating stand column assembly; the pitching driving mechanism is mounted on the supporting platform; the torque tube assembly is horizontally mounted in the middle of the pitching driving mechanism and is driven by the pitching driving mechanism to realize adjustment of a pitching angle; the supporting truss assemblies are symmetrically installed at the two ends of the torque tube assembly and used for fixing the mirror