| 摘要 |
The invention relates to a bolt drawing device of door lock, which can distribute elements reasonably, use the space in the lock effectively, and can be installed other device besides the bolt drawing device. An operating rod which connects the bolt as a whole and operates horizontally is mounted in the operating rod frame formed in the center of lock; a bolt drawing device is mounted in the upper or lower space of said inner lock depending on the reference of operating rod, and said bolt drawing device comprises: bolt cam, assisting part which cooperates the operating handle and assists the assisted part of said operating rod; cam connecter which cooperates the assisted part of bolt cam; bolt cam spring which depends on the cam connecter. The bolt spring is mounted on the back of said operating rod, and when operating the handle to make the bolt cam run by the bounce of its resistance to the bolt cam spring, said bolt and operating rod will move back by the strength of resisting boltspring. |
