Lock cylinder

Abstract

The invention discloses a lock cylinder. The lock cylinder comprises a lock cylinder body, two lock plugs, a plurality of pins, a plurality springs, an outer fixing plate, an outer door plate, an inner fixing plate, two clamping springs and two clamping blocks, wherein the outer fixing plate and the outer door plate are provided with lock cylinder inserting holes, and the outer fixing plate is riveted to the outer side of the outer door plate; and the front portion of the lock cylinder body penetrates through the inner fixing plate, and clamping holes are formed in the left end and the right end of the front portion of the lock cylinder body. According to the lock cylinder, by arranging a lubricating unit, the horizontally-placed lock cylinder can be lubricated, and the lubricating unit isparticularly suitable for lubricating and maintaining the vertically-placed lock cylinder; for example, the lock cylinder is located in the vertical direction when a lock is installed on a ceiling orthe ground, when the interior of the lock cylinder needs to be lubricated, the lubricating mode of pouring lubricating agent into the cylinder plug adopted in the prior art is very inconvenient, butby means of the design, the problem that lubrication and maintenance are not easy when the lock cylinder is vertically placed is solved.

Description

technical field [0001] The invention relates to the technical field of lock heads, in particular to a lock head. Background technique [0002] Anti-theft doors generally use mortise door locks. The key common part of mortise door locks is the lock head. For the sake of good installation and universality of the lock, there are great defects in the anti-theft door. There are installation holes on the panel of the anti-theft door. , the mortise door lock head is installed in the installation hole, and then the lock cylinder panel is installed on the panel of the anti-theft door to cover the mortise door lock head. Since the size of the installation hole is often larger than the size of the mortise door lock head, when After the lock core panel is damaged, it is easy to pry off the lock head of the mortise door lock, thereby destroying the door lock, and other people can forcibly turn the lock head with some tools to forcibly unlock the lock, and the lock head has poor anti-thef...

AI Technical Summary

Problems solved by technology

[0002] Anti-theft doors generally use mortise door locks. The key common part of mortise door locks is the lock head. For the sake of good installation and universality of the lock, there are great defects in the anti-theft door. There are installation holes on the panel of the anti-theft door. , the mortise door lock head is installed in the installation hole, and then the lock cylinder panel is installed on the panel of the anti-theft door to cover the mortise door lock head. Since the size of the installation hole is often larger than the size of the mortise door lock head, when After the lock core panel is damaged, it is easy to pry off the lock head of the mortise door lock, thereby destroying the door lock, and other people can forcibly turn the lock head with some tools to forcibly unlock the lock, and the lock head has poor anti-theft performance;

[0003] At the same time, the lock cylinder inside the lock head must be lubricated in time after being used for a period of time, otherwise it will become difficult to unlock. The method adopted in the prior art is to inject lubricant into the lock cylinder when it is found that the lock cylinder needs to be lubricated. , this action is time-consuming and laborious at first, and it is impossible to lubricate and maintain the lock cylinder every time the lock is unlocked. The method of injecting lubricant inside is extremely inconvenient, and when the lubricant is poured in, since the lock head is placed vertically, the lubricant will fall due to gravity, and the lubrication of the lock cylinder cannot be achieved at all.

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