Rope ladder head

The invention provides a rope ladder head. The rope ladder head comprises a ladder head main body; the ladder head main body comprises a main frame, a pulley frame, a pulley, a connecting rod mechanism and a self-locking plate; the pulley frame is telescopically installed at the top end of the main frame, the two ends of the pulley are rotatably installed in the pulley frame correspondingly, and the bottom end of the pulley frame is open; the self-locking plate is hinged to the pulley frame and located below the pulley; one end of the connecting rod mechanism is hinged with the main frame, andthe other end of the connecting rod mechanism is hinged with the end, away from the pulley frame, of the self-locking plate; when the pulley frame is in a shrink state, the connecting rod mechanism drives the self-locking plate to overturn to open an opening in the bottom end of the pulley frame; when the pulley frame is in an extending state, the connecting rod mechanism drives the self-lockingplate to overturn to lock