Multi-column spring lock core

Abstract

The utility invention relates to a multi-column spring lock core which is designed aiming at solving the technical problem of inconvenient unlocking caused by easy looseness between an inner lock core and an outer lock core of the current like products. The lock core comprises an inner lock core and an outer lock core, wherein the inner lock core is provided with inner spring holes and a lock hole, the outer lock core is provided with an outer spring hole, bottom holes of the inner spring holes are level, and a spring is arranged in the outer spring hole. The design key points are as follows:cylindrical sections with diameters distributed alternately from large to small are arranged in a distance section from a first inner spring hole to the last inner spring hole of the inner lock hole along the axial direction, and the inner spring holes are arranged in the cylindrical sections; and the distribution of the cylindrical sections of the inner lock core is in a concave-convex structure. The multi-column spring lock core has a reasonable structure, and the height change range of the inner spring holes of the lock core is larger, thus effectively preventing technical opening. Furthermore, the inner lock core and the outer lock core are subjected to diecasting to form the lock core, so that the inner lock core and the outer lock core are not easy to be detached, and the height structure of the spring holes in the lock core can not be known, thus improving the security and the safety of locks, and being the structural improvement of the current like products.

Description

technical field [0001] The invention relates to a lock, which is a multi-column pin cylinder of a pin lock. Background technique [0002] The pin lock is the most common lock on the market. Its working principle is mainly to set pins of different lengths in the pin hole of the lock core. When the key is inserted into the lock core, the teeth of the key will lift the pins to the same height. plane, so as to realize unlocking. There are many structural styles of existing tumbler locks, but the principles are similar. For example, the authorized announcement number CN201071630Y published in the Chinese patent literature, the authorized announcement date was June 11, 2008, and the name of the utility model is "pin lock cylinder for preventing technical unlocking". The structural feature of this patent is that the diameter of the circular lock cylinder is made into a head Large and small several diameter sections of the tail, the length of each diameter section can depend on se...

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Problems solved by technology

[0003] In order to overcome the above disadvantages, the purpose of the present invention is to provide the field with a multi-column pin lock cylinder that can effectively prevent the lock cylinder from loosening, so that it solves the problem that the height of the pin hole of the lock cylinder of the existing similar products changes less, and it is easy to know the height of the lock cylinder. Technical issues with internal structure

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