Double-security lock

Abstract

The invention discloses a double-security lock. The double-security lock is mainly characterized in that a chute is formed on a lock core; a third billiard hole is formed on the same straight line of a first billiard hole on the lock core, and is communicated with the chute; a third billiard is arranged in the third billiard hole; a fifth billiard hole corresponding to the third billiard hole is formed on a lock shell at the same time; a sliding block is arranged in the chute; a fourth billiard hole is formed on the sliding block, and a fourth billiard is arranged in the fourth billiard hole; taper holes with different depths are formed on the side surface of the sliding block; keys comprise a first key, a second key and a third key; a draw hook is arranged on a key lever of the first key; and a key lever of the second key is longer than that of the third key. By the double-security lock with the structure, a manager performs multi-layer prevention of burglary on a lockset through the second key to prevent the lockset from being unlocked because the third key is stolen or lost, thus the loss of properties is avoided. The double-security lock can be widely applied to lockers of sauna houses, swimming pools and gymnasiums.

Description

technical field [0001] The invention relates to a hardware lock, in particular to a lock used in sauna rooms and gymnasiums. Background technique [0002] There are many lock structures, among which there are many locks with high anti-theft performance. For lockers in saunas, gymnasiums, and swimming pools, the locks used are generally simple in structure, and their anti-theft performance is poor. It is more expensive to use locks with high anti-theft performance. It is generally used for locks in sauna rooms and gymnasiums. The user receives a key, and the manager keeps a key. This is for the convenience of management. No. 200610166882.4 as the Chinese patent application number, the name is called "the lockset of the double-opening of the mother-child key" which discloses the following content: a lockset of the double-opening of the mother-child key, comprising a child key, a mother key, at least three lock plates, The lock shell and the lock cylinder are provided with a ...

AI Technical Summary

Problems solved by technology

Although the lock with this structure is convenient for management, its anti-theft performance is poor. When the user is not careful, the key is stolen or lost and picked up, it is easy to open the lock, causing customers in the sauna room or gym property damage

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