Anti-strong open eccentric computer calabash lock

Abstract

The invention discloses an anti-strong open eccentric computer calabash lock. The front and back double-sided 'E'-shaped keyhole of the existing computer calabash lock is utilized, a fastening sealing strip is additionally arranged in a semi-notch on an opening end of the keyhole, a half part of a closing end of the keyhole is changed into a keyhole with a shape like a Chinese character 'shan', and the position of the keyhole is moved downwards for a certain distance to be eccentric. A key which is matched with the keyhole is also changed into a key with a shape like the Chinese character 'shan'. When the lock is turned to be opened violently and forcefully, a hard alloy key of an unlocking tool also needs to be changed into the shape like the Chinese character 'shan', the width of the hard alloy key is greatly reduced than the width of the original key with the front and back double-sided 'E'-shaped keyhole, so that the strength is caused to be greatly reduced; moreover, because the width is greatly reduced, the torsional moment which is generated by using the same strong force is also greatly reduced; in addition, the lock cylinder keyhole with the shape like the Chinese character 'shan' is eccentric, when strong force is exerted to turn, the larger the force is, the larger the external diameter deformation of a lock cylinder is caused to be, the larger the resistance is, and the harder the turning is; and the exerted strong force needs to be greatly increased, as a result, the alloy key which has the strength being greatly reduced is broken at first. The lock cannot be unlocked through a strong force unlocking manner, has good anti-theft performance and is simple and reliable in structure.

Description

technical field [0001] The invention relates to a computer gourd lock, in particular to an anti-forced opening eccentric computer gourd lock which can prevent thieves from violently twisting and unlocking the lock with a hard alloy key. Background technique [0002] At present, in the known computer gourd lock, the key adopts the front and back double "E" fonts, the width is relatively large, and the diameter of the marble is small. The method for thieves to twist the hard alloy key violently is: first insert the hard alloy key into the key hole in the lock cylinder, and then use a strong force to turn it. When the external force is greater than the strength of the marble, the marble will be broken. At this time, the lock cylinder is under the action of strong force. Can be rotated, and lock has just been opened, so extremely unsafe. Contents of the invention [0003] In order to overcome the deficiency that the existing computer gourd lock can be unlocked by violent twis...

AI Technical Summary

Problems solved by technology

The method for thieves to twist the hard alloy key violently is: first insert the hard alloy key into the key hole in the lock cylinder, and then use a strong force to turn it. When the external force is greater than the strength of the marble, the marble will be broken. At this time, the lock cylinder is under the action of strong force. It can be turned, and the lock will be opened, so it is extremely unsafe

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