Screened twin-core separately controlled pick-proof alarm lock head and key

Abstract

The invention discloses a covered pick-proof alarm lock with double-control cores and a cylindrical cross-shaped key for unlocking the lock. An inner plate of the lock can cover a lock hole completely, and a drawn pole and a drawn sheet are installed on front-and-rear lock cores for using one key to unlock two locks. A needle column installed in the lock hole can limit or stop picklocks in the lock and pick the lock core strongly, while a pick-proof construction consists of a marble group and a circuit chip for connecting the circuit and making an external alarm which is connected with the construction to alarm as being illegal unlocked or picked, therefore the lock still can not be unlock and can not stop the alarm as one of the lock core picked.

Description

(1) Technical field [0001] The invention relates to a tumbler lock head with a double lock core structure, in particular to a shielded double core separate control anti-pry alarm lock head and a cylindrical cross-shaped key for unlocking. (2) Background technology [0002] The current tumbler lock head generally has only one lock cylinder, and a dial control is provided at its tail, such as a shift fork, a shift lever, a dial or a dial, to control and toggle one or more groups of locks in the lock. Parts, belonging to the traditional single-core single-control structure of the lock. The lock head of this type of structure, when encountering illegal opening and picking the lock, is just like unlocking the lock normally with a key. The anti-theft function of the lockset of the combined locking part is completely lost. In order to improve the tamper-resistant performance of the lock head, it is proposed to adopt double lock cylinder technology, such as a double lock cylinder ...

AI Technical Summary

Problems solved by technology

In order to improve the tamper-resistant performance of the lock head, it is proposed to adopt double lock cylinder technology, such as a double lock cylinder cylinder lock head in the disclosed patent document 2325479-E05B59 / 00, which uses two lock cylinders. There is still only one dial control at the end of the lock cylinder, and there is no other tamper-resistant structure in the lock head. The lock head belongs to the double-core single-control structure. When one lock cylinder is pried, the other lock cylinder is easy to be linked. Or be followed up to pick it open, and the only dial control also opens the lock at the same time

In addition, there are two dial controls to jointly control the locking parts, which requires the installation of two locks, and the use of two keys to open the lock in two steps, which not only increases the cost of the lock, but also increases the trouble of unlocking.

The lock head with a shielding plate structure that can prevent rainwater from entering and is unlocked with a flat key used on a motor vehicle cannot limit or prevent a similar key-shaped lockpicking piece from inserting and prying the lock head. less, and there is no tamper-resistant alarm structure connected to the circuit of the car alarm in the lock head. After the alarm is turned off by using a remote control decoder, the lock head is easy to be pried open

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