Ultrashort magnetic lock core

Abstract

The invention discloses an ultrashort magnetic lock core. The ultrashort magnetic lock core comprises a lock core body, a lock button, a plurality of magnetic permeable plunger pistons, a lock cover and a magnetic control key, wherein the magnetic permeable plunger pistons are installed on the circumferential outer wall of the lock button; the lock core body is axially provided with a lock core through hole, and the inner wall of the lock core through hole is axially provided with a limiting groove; the lock button is axially provided with a key hole with the closed rear end, and the lock cover is also provided with a trough hole which is correspondently matched with the key hole of the lock button; the circumferential wall of the lock button is provided with a plurality of plunger through holes for installing the magnetic permeable plunger pistons, the key hole of the lock button is sequentially provided with an inner spring and an inner ejector rod from rear to front, the inner ejector rod is used for ejecting the magnetic permeable plunger piston which is contacted with the inner ejector rod out of the plunger piston through hole of the lock button under the effect of the resilient force of the inner spring and stretches into the limiting groove in the inner wall of the lock core through hole so as to limit the rotation of the lock button; the magnetic control key is inserted into the key hole of the lock button, the inner ejector rod compresses the inner spring to move backwards, and the magnetic permeable plunger piston slides out of the limiting groove along the plunger piston through hole under the effect of the suction force of the magnetic control key.

Description

【Technical field】 [0001] The invention relates to a magnetic lock, in particular to the ultra-short magnetic lock core. 【Background technique】 [0002] At present, there are mainly two types of lock cylinders for anti-theft locks: one is ordinary mechanical locks, most mechanical locks use a toothed key to enter the lock cylinder, and then the limiting copper pillars move upward in turn, and the limiting copper pillars are inserted after the key is in place. Fall into the tooth groove of the key, and then turn the key to open the lock; the disadvantage is that the lock body is relatively long, which is extremely inconvenient to install on some thin-walled protective doors or boxes, and professionals can use a toothless key This type of mechanical lock is opened within tens of seconds or minutes, so the anti-theft effect is poor and it is inconvenient to assemble. The other is a magnetic control lock. After the existing magnetic control lock body is included in the lock core...

AI Technical Summary

Problems solved by technology

[0002] At present, there are mainly two types of lock cylinders for anti-theft locks: one is ordinary mechanical locks, most mechanical locks use a toothed key to enter the lock cylinder, and then the limiting copper pillars move upward in turn, and the limiting copper pillars are inserted after the key is in place. Fall into the tooth groove of the key, and then turn the key to open the lock; the disadvantage is that the lock body is relatively long, which is extremely inconvenient to install on some thin-walled protective doors or boxes, and professionals can use a toothless key Open this type of mechanical lock within tens of seconds or minutes, so the anti-theft effect is poor and it is inconvenient to assemble

The other is a magnetic control lock. After the existing magnetic control lock body is included in the lock core by a key with a magnetic column, after the magnetic column on the key is used to contact the plunger in the lock core, the magnetic column in the lock core will After being inhaled by the magnetized plunger, the lock cylinder can be rotated to open the lock, and the key can be dialed out after reset; however, the existing magnetic control lock also has a relatively long lock body, which is installed on some thin-walled protective doors or boxes. It is extremely inconvenient to install, and the magnetized plunger in the lock core of the magnetic control lock is easy to absorb iron filings, making the limit hole of the magnetic column uneven, causing the plunger to be unable to reset, and it is easy to open multiple magnets with one key. Control the lock, completely lose the anti-theft function, bring unnecessary trouble and property loss to the user

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