Concave-convex mortise lock (intelligent) type anti-theft door
Patent Information
- Authority / Receiving Office
- CN Β· China
- Current Assignee / Owner
- TIANJIN HAIZHOU BRANCH TRADE & IND
- Publication Date
- 2004-02-11
- Estimated Expiration
- Not applicable Β· inactive patent
Smart Images
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Abstract
Description
[0001] Field
[0002] The invention relates to an anti-theft door for preventing theft, in particular to a concave-convex mortise lock type (intelligent) anti-theft door which integrates several concave-convex mortise lock functions into the door and a frame to form an integrated locking force effect. Background technique
[0003] Nowadays, there are many kinds of anti-theft doors. Traditional anti-theft doors all adopt partial locking force effect, and the door frame is locked and controlled by the function of tongue-type extension through the support of the door body. However, with this lock effect application method, once the root of the door leaf lock area is damaged, the lock bolt will automatically escape from the door frame due to the loss of the lock force support point of the door body, which will result in a loss of lock control safety. Therefore, existing anti-theft door has very big defect and deficiency on locking force effect. Contents of the invention [0004...