Lock cylinder dust cover

Abstract

The invention relates to a lock cylinder dust cover. The lock cylinder dust cover is characterized in that the lock cylinder dust cover comprises a shell (1) which is used for being fixed to a lock cylinder (4) and provided with a containing cavity; penetrating holes (2) are formed in the front wall and the rear wall of the shell (1); two oppositely arranged baffle blocks (3) which can slide left and right are mounted in the containing cavity of the shell (1); and the baffle blocks (3) are restrained in the containing cavity and can rotate with the axes of the penetrating holes (2) as the center. In the normal state, the two baffle blocks get close under the action of an elastic part and cover the penetrating holes, so that the dust prevention function on the lock cylinder is achieved. When a key is inserted into the space between the two baffle blocks, the elastic part is pressed, the two baffle blocks are separated; and due to the fact that the baffle blocks can rotate relative to the shell, after the key pushes away the baffle blocks and penetrates through the penetrating holes to be inserted into the lock cylinder, the key is rotated, the baffle blocks can also rotate along with the key, the unlocking operation through key rotation is easier, and the design is more humanized.

Description

technical field [0001] The invention belongs to the technical field of locks, and in particular relates to a lock cylinder dustproof cover covering a lock cylinder hole. The structure is suitable for being installed on a safe or a safety door, and plays a role of protecting the lock cylinder hole. Background technique [0002] The lock cylinder hole on the traditional safe box door or safety door is directly exposed. Since no measures are taken to prevent dust from falling into the lock cylinder hole, after a period of use, dust or foreign matter or water will flow into the lock cylinder hole. Liquid, so that when the lock is unlocked with an adapted key, the pattern on the key does not correspond to the shape of the lock cylinder hole, resulting in difficulty and laborious opening, and even in severe cases, it may even fail to open. This will cause inconvenience in use on the one hand, and easily cause The shortening of the life of the lock will also affect the appearance o...

AI Technical Summary

Problems solved by technology

[0002] The lock cylinder hole on the traditional safe box door or safety door is directly exposed. Since no measures are taken to prevent dust from falling into the lock cylinder hole, after a period of use, dust or foreign matter or water will flow into the lock cylinder hole. Liquid, so that when the lock is unlocked with an adapted key, the pattern on the key does not correspond to the shape of the lock cylinder hole, resulting in difficulty and laborious opening, and even in severe cases, it may even fail to open. This will cause inconvenience in use on the one hand, and easily cause The shortening of the life of the lock will also affect the appearance of the safe

[0003] At present, there are also safe box doors that can cover the lock cylinder hole on the market. There are two main methods. One is to rely on manual closing of the cover plate. The cover plate that can be covered automatically covers the hole of the lock cylinder. This kind of cover plate can only be opened or covered through the linkage of the lock structure, which has the disadvantage of complex structure and high cost.

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