Intelligent door lock pull rod cat eye

• Main Author: ZHOU CHANGGEN
• Format: Patent
• Language: Chinese; English
• Published: 03.12.2021
• Subjects: DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; LADDERS

The utility model discloses an intelligent door lock pull rod cat eye, and relates to the technical field of door locks. Comprising a front sleeve, a middle sleeve and a rear sleeve, the front end of the front sleeve is provided with a mounting seat and a convex lens, the outer wall of the front sleeve is provided with a first external thread, the inner wall of the front sleeve is provided with a first internal thread, and the inner wall of the middle sleeve is provided with a second internal thread; the front sleeve is inserted into the middle sleeve and is in threaded connection with the middle sleeve through matching of the first external threads and the second internal threads, a first fixing seat is arranged at the rear end of the middle sleeve, second external threads are arranged on the outer wall of the rear sleeve, and the rear sleeve is inserted into the front sleeve and is in threaded connection with the front sleeve through matching of the first internal threads and the second external threads. A