Lock cylinder of inversely installed safe-guard door lock

Abstract

The invention discloses a lock cylinder of an inversely installed safe-guard door lock. The lock cylinder comprises a square tongue assembly, an oblique tongue assembly and a gourd lock, wherein the square tongue assembly comprises a square tongue and a first toothed crank arm. The square tongue is installed on a lock casing in a sliding mode, guide grooves distributed slantly are arranged on the square tongue, and the first toothed crank arm is provided with first columns, a second column, a first gear and a shifting block for shifting the gourd lock. The first columns are located in the guide grooves and drive the square tongue to perform extending movement when the first toothed crank arm rotates. The oblique tongue assembly comprises an oblique tongue, a shifting fork and a second toothed crank arm, wherein a second gear is arranged on the second toothed crank arm and is meshed with the first gear, the shifting fork is in rotating connection with the lock casing through a rotary shaft, and the right end of the shifting fork is located under a blocking part at the bottom of the oblique tongue. The lock cylinder of the inversely installed safe-guard door lock can decrease the area of a door panel and is good in safety.

Description

technical field [0001] The invention relates to a lockset, in particular to a lock core of a flip-mounted anti-theft door lock. Background technique [0002] At present, the anti-theft lock cylinders provided on the market usually use a connecting rod to drive the anti-lock large square tongue. The door handle of this kind of door lock is in the middle of the lock panel. Installed on or under the door handle, and the remaining space above or below the door handle is limited. After installing the fingerprint reader or password input device or card swiping device, it is very crowded and inconvenient to use. Some door panels even need to increase the length In order to install a fingerprint reader or a password input device or a card swiping device. Contents of the invention [0003] In view of the deficiency of the background technology, the technical problem to be solved by the present invention is to provide a lock cylinder of a flip-mounted anti-theft door lock which ca...

AI Technical Summary

Problems solved by technology

[0002] At present, the anti-theft lock cylinders provided on the market usually use a connecting rod to drive the anti-lock large square tongue. The door handle of this kind of door lock is in the middle of the lock panel. Installed on or under the door handle, and the remaining space above or below the door handle is limited. After installing the fingerprint reader or password input device or card swiping device, it is very crowded and inconvenient to use. Some door panels even need to increase the length In order to install a fingerprint reader or a password input device or a card swiping device

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