Floor with anti-separating fastening floor

The utility model relates to a floor with an anti-gap lock, comprising two adjacent overlapped A floors, a B floor and a locking device; a coak (A10) of the locking device comprises an upper locating surface (A11), a raised coak head (A12) and a hook groove (A13); the shared side wall of the hook groove (A13) and coak head (A12) is vertical to the upper surface and the lower surface of the A floor; and a catching groove (B10) of the locking device comprises a lower locating surface (B11) and a coak groove (B12) of an embedded coak head (A12) and also comprises a hook head (B13) of the hook groove (A13). After adopting the technical proposal, the novel floor has stronger tensile resistance and deformation resistance, can keep the good connection state of the floor for longer time, not only keep the beauty of the floor, but also preventing the floor from becoming wet and prolonging the service life of the floor.