Invisible pin tumbler lock cylinder

Abstract

The invention discloses an invisible pin tumbler lock cylinder which can effectively realize the function of preventing technical opening. The lock cylinder comprises fixed sleeves (1) and movable sleeves (2) which can rotate in the fixed sleeves (1), wherein spring holes (11) are arranged between the fixed sleeves (1) and the movable sleeves (2). The lock cylinder is characterized in that magnetic springs (3) and non-working springs (4) are arranged in the spring holes (11); the sum of the length of the magnetic springs (3) and the length of the non-working springs (4) is equal to the length of the spring holes (11) in the movable sleeves (2); the spring holes (11) are provided with plugs (5) in the fixed sleeves (1); and when the lock cylinder is opened abnormally, the non-working springs (4) restrict rotation of the movable sleeves (2) in the fixed sleeves (1). The lock cylinder has the following advantages: the lock cylinder has a simple structure and low cost, is convenient to machine, can effectively prevent technical opening and greatly improves the safety performance; and meanwhile, the lock cylinder is reset rapidly and normally, thus avoiding mass missed locking and mutual opening and abnormal locking of the lock cylinder.

Description

technical field [0001] The invention relates to a lock cylinder, in particular to an invisible pin lock core, in particular to an invisible pin lock core with anti-deciphering function. Background technique [0002] At present, the mechanical locks commonly used by people are ordinary pin locks, and the main problem of ordinary pin locks is that the opening time of the preventive technology is short, and it is easy to be opened by illegal technology in a very short time. The opening time of the anti-theft door anti-theft technology is greater than or equal to 5 minutes to be qualified. That is to say, the opening performance of the anti-theft door technology of the mechanical lock is too low, which has seriously hindered the progress of anti-theft doors and related security products in our country. In order to prolong the opening time of the lock cylinder preventive technology, some mechanical pins are changed to magnetic pins. Although the performance of preventing the tech...

AI Technical Summary

Problems solved by technology

When the hole diameters of the pin holes of the fixed sleeve and the pin holes of the movable sleeve are the same, when the lock cylinder is locked, it is difficult for the working pins in the fixed sleeve to fall into the pin holes of the movable sleeve, often because the working pins cannot fall into the movable sleeve. The pin hole causes a large number of users to miss locks and open each other; when using the automatic lock body, it often occurs that the working pins jump into other pin holes, causing the lock cylinder to lock abnormally and cannot be used.

If the hole diameter of the pinholes of the movable sleeve is larger than that of the pinholes of the fixed sleeve, although it can better ensure that the working pinholes fall into the pinholes of the movable sleeve, thereby reducing the phenomenon of leaking locks and mutual opening, but this will cause the pinholes of the movable sleeve to fall into the pinholes of the movable sleeve. It becomes more difficult for the anti-deciphering pin in the hole to enter the pin hole of the fixed sleeve. If illegal technology is used to exploit this weakness and amplify this weakness through the rotation gap of the lock cylinder, the anti-deciphering ability of the lock cylinder will be greatly reduced.

[0003] At the same time, when using the automatic lock body, because the working pins need a little time difference when resetting, often because the working pins fail to reset in time, first, a large number of missing locks and mutual openings occur; use

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