DOOR LOCK CAPABLE OF PREVENTING BEING OPENED BY BREAKING AND TECHNOLOGY

DOOR LOCK CAPABLE OF PREVENTING BEING OPENED BY BREAKING AND TECHNOLOGY

The utility model relates to a door lock capable of preventing being opened by breaking and technology. In the course of locking, a cylinder bolt on the top of a cone on a lock body is inserted in the bolt hole of a lock catch box. The bolt of a screw is screwed and combined with a screw nut in the...

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Hauptverfasser: MENG ZHONGMIN, MENG HUANZHANG, MENG XIAOMIN ET AL
Format: Patent
Sprache:eng
Schlagworte:
ACCESSORIES THEREFOR
FIXED CONSTRUCTIONS
HANDCUFFS
KEYS
LOCKS
SAFES
WINDOW OR DOOR FITTINGS
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creator MENG ZHONGMIN
MENG HUANZHANG
MENG XIAOMIN ET AL
description The utility model relates to a door lock capable of preventing being opened by breaking and technology. In the course of locking, a cylinder bolt on the top of a cone on a lock body is inserted in the bolt hole of a lock catch box. The bolt of a screw is screwed and combined with a screw nut in the lock catch box to lead the lock body and the lock catch box to be connected into integration. The lock body and the lock catch box can not be separated by destructive opening methods, such as propping, pulling, prying on the sides with brute force. The telescoping of the cylinder bolt on the top of a cone and the rotary telescoping of the bolt of the screw are driven by a combined transmission mechanism. The utility model adopts a narrow groove lock core which is provided with position changing sheet and is welded by a group of sheet-shaped punching parts, and a key which is provided with a curved groove which bends and extends to the handle part of the key.
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subjects ACCESSORIES THEREFOR
FIXED CONSTRUCTIONS
HANDCUFFS
KEYS
LOCKS
SAFES
WINDOW OR DOOR FITTINGS
title DOOR LOCK CAPABLE OF PREVENTING BEING OPENED BY BREAKING AND TECHNOLOGY
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