Magnetic type ceiling access hole suitable for assembly type suspended ceiling

The invention belongs to the technical field of decoration, and provides a magnetic ceiling access hole suitable for an assembled suspended ceiling, which comprises an outer frame assembly, an inner frame assembly, a suspended ceiling veneer, an access hole veneer and a magnetic assembly, the outer frame assembly comprises a plurality of outer frame splicing pieces; a first assembling groove is formed in the outer frame splicing piece, and the top surface of the first assembling groove is locked and fixed with the suspended ceiling veneer through a first locking piece; the inner frame assembly comprises a plurality of inner frame splicing pieces; a second assembling groove is formed in the inner frame splicing piece, and the top face of the second assembling groove and the access hole veneer are locked and fixed through a second locking piece; the inner frame splicing piece is provided with a lap joint part, and the lap joint part corresponds to the part, located above the suspended ceiling veneer, of the out