Multi-bolt double-quick burglarproof lock

Abstract

The invention discloses a multi-bolt double-quick burglarproof lock, which comprises a shell and a lock body panel. A main bolt, an oblique bolt, a safety bolt, an upper sliding bolt, a lower sliding bolt, a handle transmission mechanism in matched connection with inner and outer handles, a main bolt pulling mechanism in matched connection with the handle transmission mechanism, a main bolt motion limiting plate, a main bolt limiting clutch mechanism and a lock cylinder are arranged in the shell; two or two groups of rotary bolts with gears are also arranged in the shell; one side of the upper sliding bolt and one side of the lower sliding bolt are provided with racks in transmission fit with the gears of the rotary bolts respectively; the inner ends of the upper sliding bolt and the lower sliding bolt are in matched connection with the main bolt pulling mechanism respectively and enable the rotary bolts and the main bolt to form linkage; and rotary bolt torsion springs are arranged on the rotary bolts. The lock can be quickly locked by using the handles, quickly unlocked indoors by using the handle and unlocked outdoors by using a key; and the lock has simple structure, is convenient and quick to operate, and has high reliability, high burglarproof performance and the like.

Description

Technical field: [0001] The invention relates to a door lock structure, in particular to an anti-theft lock with multiple bolts and quick-opening and quick-locking (double-fast) features. Background technique: [0002] As an indispensable tool in people's daily life, locks have been continuously improved in their anti-theft performance. The dead bolt of the existing anti-theft lock is no longer in a single direction, and has developed into three directions and five tongues. Its deadbolt comprises: oblique bolt, main locking bolt, safety tongue and the sliding bolt that is connected on the connecting plate of main locking bolt, and described sliding bolt is respectively one above and below the lock body, and the direction is perpendicular to main locking bolt. The security performance of the anti-theft lock designed in this way has been greatly improved. Although the anti-theft performance of locks is constantly improved, there are often news that some indoor property is st...

AI Technical Summary

Problems solved by technology

[0003] For this reason, Chinese invention patent ZL200410025796.2 discloses a three-way five-tongue anti-theft door lock that can realize fast locking and opening. It does not need a key when locking the door, and the main lock bolt and other extensions can be locked by rotating the outer handle. , so as to avoid the troublesome phenomenon of locking the door, and has the advantages of simple, convenient and fast operation, but the anti-theft lock also has defects such as complex structure and unreliable anti-theft performance.

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