| 摘要 |
A door lock device comprised a main body, a lock bolt, a lock tongue, a spindle, and two moving collars. The spindle is connected with the lock bolt by a lock bolt transmission mechanism. The spindle is connected at one end with a lock control mechanism located in the external side of the main body. The spindle is provided at both ends with a moving collar having a retaining portion which is connected with the lock tongue by a lock tongue transmission mechanism. A rotating mechanism is disposed in the external side of the main body such that the rotating mechanism is coaxial with the lock control mechanism. The lock bolt and the lock tongue are coaxially driven.
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