Door lock

The utility model provides a door lock. The door lock comprises a shell, a driving structure, a locking structure, a limiting piece and a detection assembly. The locking structure is provided with a first preset position abutting against the detection assembly and a second preset position separated from the detection assembly, and when the locking structure slides to the first preset position or the second preset position, the detection assembly is used for detecting the state of the door lock so that the driving structure can move. When the door lock is closed, the driving structure drives the limiting piece to slide relative to the shell so that the limiting piece can be separated from the locking structure, and the driving structure can further drive the locking structure to slide relative to the shell so that the locking structure can protrude out of or be contained in the shell so that locking can be achieved. According to the door lock, through the arrangement of the limiting piece and the detection ass