Double-safety lock and key thereof

Abstract

The invention discloses a double-safety lock and a key thereof. According to the technical scheme, the double-safety lock is characterized in that the double-safety lock comprises a lock body, a lock cylinder hole and flat ball holes are formed in the lock body, flat ball assemblies are arranged in the flat ball holes, and a lock cylinder is arranged in the lock cylinder hole; a shifting head is arranged at one end of the lock cylinder; a key hole, marble holes, a safety bolt groove, sealing piece grooves and blade grooves are formed in the lock cylinder; marbles which are matched with the flat ball assemblies and enable the flat balls to lock the lock cylinder are arranged in the marble holes; and a safety bolt which can lock the lock cylinder is arranged in the safety bolt groove. According to the double-safety lock, the marbles are integrated in the lock, and the safety bolt can only be unlocked when the safety bolt is matched with the marbles and blades at the same time, so that the anti-theft coefficient is increased, and the safety performance is better; the marbles and the key are matched, so that the safety bolt can only rebound into the safety bolt groove by rotating the marbles by certain angles, and thus the anti-theft performance is further improved. By taking the double-safety measure based on the marbles and the safety bolt, the lock has a better anti-prying function, and the lock is extremely difficult to unlock even when damaged with violent force.

Description

[0001] 【Technical field】 [0002] The invention relates to a double safety lock and its key. [0003] 【Background technique】 [0004] Existing locks are generally unlocked by marbles or blades, and the unlocking method is single, which results in low security of the lock, which is easy to be cracked, and easily causes the danger of being stolen during use. [0005] 【Content of invention】 [0006] In order to solve the deficiencies in the prior art and provide a lock with good insurance performance and high anti-theft coefficient, the present invention adopts the following technical solutions: [0007] A double safety lock, comprising a lock body 1, on which a lock cylinder hole 1-1 and a flat bead hole 1-2 are arranged, and a flat bead assembly 2 is set in the flat bead hole 1-2, and the The lock cylinder hole 1-1 is provided with a lock cylinder 3, and one end of the lock cylinder 3 is provided with a dial 4, and the lock cylinder 3 is provided with a key hole 3-1 and a marb...

AI Technical Summary

Problems solved by technology

[0004] Existing locks are generally unlocked by marbles or blades, and the unlocking method is single, which results in low safety of the lock and is easy to be cracked, and it is easy to cause the risk of being stolen during use

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