CN2679305Y - Antitheft magnetic lock - Google Patents

Abstract

The utility model relates to an antitheft magnetic lock which is mainly composed of a lock sleeve, a lock core, and a key. A blind hole whose diameter is the same as the diameter of the blind hole of the lock core is arranged on the lock sleeve, and the blind hole which is arranged on the lock sleeve and the blind hole of the lock core are coaxial. A moving magnetic bead and a spring are arranged inside the blind hole of the lock sleeve, a magnetic granule is fixed on the key corresponding to the position of the moving magnetic bead, and the polarities of the adjacent ends of the magnetic granule and the moving magnetic bead are mutually repulsive; meanwhile, a blind hole whose diameter is the same as the diameter of the blind hole of the lock core is also arranged on the lock sleeve, and the blind hole which is also arranged on the lock sleeve and the blind hole of the lock core are coaxial. A magnetic block, a copper bead, and an iron bead are orderly placed inside the blind hole of the lock sleeve from inside to outside, wherein, the sum of the heights of the magnetic block, the copper bead, and the iron bead is less than the depth of the blind hole of the lock sleeve, and the magnetic block is fixed at the bottom of the blind hole. The fact that the magnetic block, the copper bead, and the iron bead are placed inside the blind hole is used, when strong magnetism appears on a position corresponding to the blind hole of the lock core, that is to say, when a universal key is inserted, one end of the iron bead is sucked into the blind hole of the lock core to make the antitheft magnetic lock be positioned in a locking state, which can effectively prevent the universal key from stealing and opening the antitheft magnetic lock. The antitheft magnetic lock has strong anti-theft performance and simple structure.

Description

The anti-theft magnetic lock

Technical field: the utility model relates to a kind of lockset, particularly a kind of antitheft magnetic lock.

Background technology: its structure of existing magnetic lock normally is made up of lock tube, lock core and key, wherein lock core is enclosed within the lock tube, outer wall of lock core has blind hole, on the inwall of lock tube, also have blind hole coaxial with the lock core blind hole and that diameter is the same, in the blind hole of lock tube, place moving magnetic bead by lock core one end, moving magnetic bead has spring by between an end of lock tube blind hole bottom and the lock tube blind hole bottom, and the corresponding magnetic bead place of moving is fixed with the magnetic grain, the polar repulsion of magnetic grain and moving magnetic bead abutting end on the key.The operating principle of this magnetic lock is that moving magnetic bead does not have part to be headed in the blind hole of lock core under spring action lock core is locked on the lock tube when inserting key, after inserting key, because of key corresponding to the locational magnetic grain polarity of moving magnetic bead and identical the repelling each other of polarity of moving magnetic bead abutting end, the elastic force that this magnetic mutual expelling force makes magnetic bead overcome spring will move magnetic bead, and all to head into lock tube interior and lockset is opened.The shortcoming that this magnetic lock exists is: owing to only need on the corresponding moving magnetic bead position magnetic grain or the magnetic patch identical with moving magnetic bead polarity are arranged in lock core; the elastic force that utilizes their magnetic mutual expelling force just can make magnetic bead overcome spring will move magnetic bead and all head in the lock tube and lockset is opened; as long as make the different magnetic key of a Gent; be that the magnetic key can stretch into cylindrical magnetic patch string that lock core part has a hole by a plurality of equirotal centres and is stacked on the bar and constitutes the part that this key is used to unblank; the height of each cylindrical magnetic patch is the same substantially with lock core or lock tube blind hole size; each cylindrical magnetic patch is at magnetic polarity upper edge diameter separated into two parts; a part is the N utmost point; another part is the S utmost point; when being injected lock core, this key rotates; if lock has left; proof is just identical with the magnetic polarity of moving magnetic bead facing to the magnetic polarity of the cylindrical magnetic patch at all moving magnetic bead places in the lock tube; if lock is not opened; then need to rotate a cylindrical magnetic patch earlier to adjust its N; the orientation of the S utmost point; inserting lock core again rotates; if still do not open; then can adjust the N of another cylindrical magnetic patch; S utmost point orientation; adjust so one by one; the N of a plurality of cylindrical magnetic patch; the combination of S utmost point orientation all tries one time; just definitely there is the combination of a kind of orientation to open by a lock; if can be by chance or be familiar with the people of lock; then can open by a lock in several seconds; therefore; above-mentioned magnetic lock is easy to be called as so-called " omnipotent spoon " and open by this; its theftproof is very poor, easily just can be by people's pirate of the open.

Summary of the invention: the purpose of this utility model is to provide a kind of and can prevent for overcoming above-mentioned shortcoming the anti-theft magnetic lock of " omnipotent spoon " pirate of the open.

The purpose of this utility model can be achieved as follows: this anti-theft magnetic lock, mainly by lock tube, lock core and key are formed, wherein lock core is enclosed within the lock tube, outer wall of lock core has blind hole, on the inwall of lock tube, also have blind hole coaxial with the lock core blind hole and that diameter is the same, in the blind hole of lock tube, place moving magnetic bead by lock core one end, moving magnetic bead has spring between an end of lock tube blind hole bottom is bottom the lock tube blind hole, corresponding moving magnetic bead place is fixed with the magnetic grain on the key, the polar repulsion of magnetic grain and moving magnetic bead abutting end, it is characterized in that: described outer wall of lock core also has a blind hole, on the inwall of lock tube, yet have blind hole coaxial with the lock core blind hole and that diameter is the same, in the blind hole of lock tube, be placed with magnetic patch from the inside to the outside successively, copper pearl and iron shot, wherein magnetic patch, the bottom that copper pearl and iron shot three height sum is fixed on this lock tube blind hole less than the degree of depth and the magnetic patch of this lock tube blind hole.

The utility model utilization is respectively set up corresponding coaxial blind hole on lock core and lock tube, in this lock tube blind hole, be placed with simultaneously magnetic patch from the inside to the outside successively, copper pearl and iron shot, because magnetic patch, the bottom that copper pearl and iron shot three height sum is fixed on this lock tube blind hole less than the degree of depth and the magnetic patch of this lock tube blind hole, therefore, iron shot is inhaled in the lock tube blind hole under the magneticaction of magnetic patch generally speaking, make iron shot all be positioned at the lock tube blind hole all the time, simultaneously owing between iron shot and the magnetic patch copper pearl is arranged, can prevent that iron shot is by magnetic polarization, be that iron shot does not have polarity, when strong magnetic occurring corresponding to lock core blind hole place, one end of iron shot will overcome magnetic patch under the effect of strong magnetic magnetic force is sucked out disengaging lock tube blind hole and enters into the lock core blind hole, because iron shot one end is positioned at lock core, the other end then is positioned at lock tube, at this moment lock core and lock tube just can not relatively rotate, and are in the lock state.As " omnipotent spoon " when being inserted into lock core, no matter how to adjust " omnipotent spoon " and go up N, the S utmost point orientation of magnetic patch, one side correspondence that all has " omnipotent spoon " last a certain magnetic patch all the time appears at the lock core blind hole place corresponding with iron shot, owing to be strong magnetic, one end of iron shot will be inhaled into lock is in the lock state, and therefore, " omnipotent spoon " is as long as this lock pin of reeve, this lock just must be in the lock state, and can effectively prevent " omnipotent spoon " pirate of the open to magnetic lock.Since the magnetic grain lock core blind hole corresponding on the special-purpose spoon of this lock with iron shot be certainly dislocation or across half of spoon, therefore the iron shot magnetic force that can not exert an influence is influenced, can unblank as usually.Therefore, the theftproof of this magnetic lock is strong, and is simple in structure, and mutual opening rate is few, easily manufactures, easy to use, can prevent from can't unblank after viscose glue water or other foreign material from advancing lock core, is well suited in magnetic lock and applies.

Description of drawings:

Fig. 1 is the structural representation of the utility model anti-theft magnetic lock;

The specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing:

In Fig. 1, this anti-theft magnetic lock is mainly by lock tube 1, lock core 2 and key 4 are formed, wherein lock core is enclosed within the lock tube, outer wall of lock core has blind hole 82, on the inwall of lock tube, also have blind hole 81 coaxial with lock core blind hole 82 and that diameter is the same, in the blind hole of lock tube, place moving magnetic bead 7 by lock core one end, moving magnetic bead has spring 6 between an end of lock tube blind hole bottom is bottom the lock tube blind hole, corresponding moving magnetic bead place is fixed with magnetic grain 41 on the key, the polar repulsion of magnetic grain and moving magnetic bead abutting end, outer wall of lock core also has a blind hole 83, on the inwall of lock tube, yet have blind hole 84 coaxial with lock core blind hole 83 and that diameter is the same, in the blind hole 84 of lock tube, be placed with magnetic patch 11 from the inside to the outside successively, copper pearl 10 and iron shot 9, wherein magnetic patch, the bottom that copper pearl and iron shot three height sum is fixed on this lock tube blind hole less than the degree of depth and the magnetic patch of this lock tube blind hole.End at lock core also is with snap ring 5, also has lock tube lid 3 at an end of lock tube.

Operating principle: be that lockset is in the state open prepared among Fig. 1, when inserting key, magnetic grain 41 will move magnetic bead 7 and be pressed in the blind hole 81 on the key, and moving magnetic bead leaves in the lock core blind hole fully, at this moment, only needs key rotational lock core 2 can be opened lock; When inserting as when " omnipotent spoon ", can attract iron shot 9 in the blind hole 83 by thereon magnetic block, make iron shot 9 one ends enter into the blind hole 84 of lock core 2, at this moment, even moving magnetic bead 7 is pressed in the blind hole 81 fully, lock core also can't rotate, and lock is not opened; When not inserting anything in the lock core, then moving magnetic bead one end is positioned at lock core blind hole 82, and iron shot then is positioned at lock tube blind hole 83 fully, and lock is in the lock state.Here, iron shot 9 can replace with other ferromagnetic materials, as long as can be by poles attract, laying the lock tube blind hole 81 of moving magnetic bead 7 and lock core blind hole 82 has when a plurality of, can be on lock tube, lock core disalignment to be provided with in the radial direction, simultaneously, lay the lock tube blind hole 83 of iron shot 9 and lock core blind hole 84 also can be on lock tube, lock core disalignment to be provided with in the radial direction, just not and lay the lock tube blind hole 81 of moving magnetic bead 7 and lock core blind hole 82, can not exert an influence to iron shot with magnetic grain on the assurance key too near get final product.Also available other physical property materials similar of copper pearl 10 replace promptly needing only magnetic conductivity not by force, the also available magnetic patch of spring 6 that suppresses moving magnetic bead 7 in addition replaces, as long as this magnetic patch can play the effect that makes magnetic bead be pushed into the lock core blind hole with the polar repulsion of near-end mutually of moving magnetic bead.

Claims (1)

1, a kind of anti-theft magnetic lock, mainly by lock tube (1), lock core (2) and key (4) are formed, wherein lock core is enclosed within the lock tube, outer wall of lock core has blind hole (82), on the inwall of lock tube, also have blind hole (81) coaxial with lock core blind hole (82) and that diameter is the same, in the blind hole of lock tube, place moving magnetic bead (7) by lock core one end, moving magnetic bead has spring (6) between an end of lock tube blind hole bottom is bottom the lock tube blind hole, corresponding moving magnetic bead place is fixed with magnetic grain (41) on the key, the polar repulsion of magnetic grain and moving magnetic bead abutting end, it is characterized in that: described outer wall of lock core also has a blind hole (83), on the inwall of lock tube, yet have blind hole (84) coaxial with lock core blind hole (83) and that diameter is the same, in the blind hole (84) of lock tube, be placed with magnetic patch (11) from the inside to the outside successively, copper pearl (10) and iron shot (9), wherein magnetic patch, the bottom that copper pearl and iron shot three height sum is fixed on this lock tube blind hole less than the degree of depth and the magnetic patch of this lock tube blind hole.

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