Camera secondary lens end structure with foldable lens cover

The invention provides a camera secondary lens end structure with a foldable lens cover. The structure comprises a lens cone, a secondary lens frame, a secondary lens supporting structure, a rotary ring and a plurality of foldable cover piece assemblies. The secondary lens frame is installed at the front end of the lens cone, the secondary lens supporting structure is a symmetrical beam piece typesupport and is fixed on the lens cone through the secondary lens frame, and the cross section of the secondary lens supporting beam piece is U-shaped; the number of the rotary ring supporting beams and the number of the foldable cover piece assemblies are the same as the number of the secondary mirror supporting beam pieces; the rotary ring is hinged to the secondary mirror frame through a centerpositioning hole, the rotary ring supporting beam is fixed to one end of each of the foldable cover piece assemblies through a connecting shaft, and the other end of each of the foldable cover pieceassemblies is fixed to the