Patent application number | Description | Published |
20080264125 | Lock assembly with an improved burglarproof lock core - A lock assembly with an improved burglarproof lock core has a casing, a lock core and multiple outer chambers. The casing is mounted in a lock device and has a core hole and multiple outer chambers. The lock core is mounted in the core hole and has multiple inner chambers and a keyhole. The inner chambers correspond to the outer chambers in the casing. Each locking pin assembly is mounted slidably in the corresponding outer and inner chambers and has an inner and outer locking. The inner locking pins are flush with the inner chamber when the lock device is unlocked, and at least one inner locking pin is magnetic. The outer locking pin corresponding to the magnetic locking pin is held to ensure that the lock assembly won't be unlocked when someone attempts to tap the locking pin assemblies to pick the lock device. | 10-30-2008 |
20080302150 | LOCK CORE ASSEMBLY - A lock core assembly has a lock shell, a lock core, multiple pin assemblies and at least one anti-knock pin assembly. Each pin assembly is mounted in a mounting chamber formed radially in the lock shell and through the lock core. Each anti-knock pin assembly has an upper pin and a major spring abutting each other and is mounted in a corresponding characteristic chamber assembly with a core chamber and at least one limiting recess communicating with each other. When a burglar turns the lock core by using a lock pick to vibrate or knock the lock core, the major spring presses the upper pin to engage in the limiting recess to limit the lock core and provide a reliable and reusable burglarproof lock that need not be replaced after an attempted malicious opening. | 12-11-2008 |
20090178451 | Lock core assembly - A lock core assembly has a lock shell, a lock core and a pin segment. The lock shell has a core mount, multiple upper pin chambers, a lid and at least one retaining flange. The lock core is mounted rotatably in the core mount and has a keyhole and multiple lower pin chambers. The lower pin chambers are formed radially through an outer surface of the lock core, communicate with the keyhole, align longitudinally, correspond to and communicate with the upper pin chambers. The pin segment is mounted between the lock shell and the lock core and has multiple abutting pin assemblies and at least one suspended pin assembly. When knocked, a suspended upper pin of the at least one suspended pin assembly prevents the pin aligning and the lock core from rotating, the lock core assembly provides a preferred burglarproofing effect. | 07-16-2009 |