阅读说明：本技术 电动防盗标签 (Electric anti-theft label ) 是由 赵沛字 于 2021-08-04 设计创作，主要内容包括：本发明涉及一种电动防盗标签,利用无刷电机通电后,电机中绕线定子产生电磁场驱动防盗标签内部磁性转子转动开锁,所述的锁紧机构包括：锁芯、锁心顶部的锥面钢碗、锁心外套固的环形磁性转子、锁心底部的弹簧,触发电动开锁器时,利用无刷电机通电后,电机中的绕线定子产生旋转电磁场,驱动处在磁场中心位置的环形磁性转子周向转动,由于锁芯无法周向转动,凸块与凸轮部的移动,带动锁心向上移动,继而压迫凸轮带动锁芯向下移动压缩弹簧,当凸块移动至接近波峰处时,锁芯向下至抵顶下定位座的解锁位,开锁；当锁紧机构离开电动开锁器或关闭电动开锁器时,失电失磁,锁芯被弹簧抵顶复位,凸块自然滑落至凸轮部的波谷,带动环形磁性转子复位。(The invention relates to an electric anti-theft label, which is characterized in that after a brushless motor is electrified, a winding stator in the motor generates an electromagnetic field to drive a magnetic rotor in the anti-theft label to rotate and unlock, and a locking mechanism comprises: when the electric lock opener is triggered, after the brushless motor is electrified, a winding stator in the motor generates a rotating electromagnetic field to drive the annular magnetic rotor at the center of the magnetic field to rotate circumferentially, the lock core is driven to move upwards by the movement of the convex block and the cam part because the lock core cannot rotate circumferentially, and then the cam is pressed to drive the lock core to move downwards to compress the spring, and when the convex block moves to a position close to a wave crest, the lock core moves downwards to an unlocking position abutting against the lower positioning seat to unlock; when the locking mechanism leaves the electric unlocking device or closes the electric unlocking device, the power is lost and the magnetism is lost, the lock cylinder is propped by the spring to reset, and the convex block naturally slides to the wave trough of the cam part to drive the annular magnetic rotor to reset.)

1. The utility model provides an electronic theftproof label, includes the casing that comprises upper cover and drain pan, establishes theftproof nail locking mechanism between upper cover and the drain pan, and the theftproof nail inserts in the casing and locks the location by locking mechanism from the upper cover, its characterized in that: electronic unlocking ware corresponds with locking mechanism, utilizes brushless motor circular telegram back, and the inside magnetism rotor of winding stator production electromagnetic field drive security label in the motor unblanks, locking mechanism fix between upper and lower positioning seat, include:

the lock core is provided with a central through hole, three locking through holes are uniformly distributed in the circumferential direction of the upper part of the lock core, and nonmagnetic locking balls are arranged in the locking through holes; the outer side of the lock cylinder is fixed with a circumferential positioning part and at least more than two cam parts with the same wave crest and wave trough structure, and the circumferential positioning part is clamped in a positioning groove of the upper positioning seat or the lower positioning seat for circumferential fixation during assembly, so that the lock cylinder cannot rotate in the circumferential direction;

the conical steel bowl is fixed in the upper fixed seat and buckled at the upper part of the lock core, and the locking bead is limited by the conical surface of the inner wall of the steel bowl;

the annular magnetic rotor is sleeved outside the lock cylinder, a magnet or a coil for inducing magnetism is arranged in the annular magnetic rotor in an annular mode, protruding blocks corresponding to the cam part are evenly distributed on the annular magnetic rotor, the protruding blocks are embedded between wave troughs of the cam part, the lower positioning seat is provided with a limiting step for limiting downward maximum displacement of the annular magnetic rotor, and the annular magnetic rotor cannot enable the lock cylinder to move downwards to abut against the bottom unlocking position of the lower positioning seat by pressing the wave trough of the cam part under the action of gravity or other downward external forces;

the spring is arranged at the bottom of the lock cylinder, the lower end of the spring abuts against the upper surface in the lower positioning seat, the upper end of the spring jacks up the lock cylinder to force the locking beads on the lock cylinder to be pressed inwards by the inner wall of the steel bowl to press the anti-theft nails, and when the anti-theft nails are inserted, the locking beads clamp the anti-theft nails;

when the electric unlocking device is triggered, after the brushless motor is electrified, a winding stator in the motor generates a rotating electromagnetic field to drive the annular magnetic rotor at the center of the magnetic field to rotate circumferentially, and the convex block moves from the wave trough of the cam part to the wave crest to drive the annular magnetic rotor to move upwards to the limiting part abutting against the lower positioning seat and further press the cam to drive the lock core to move downwards to compress the spring;

when the locking mechanism leaves the electric unlocking device or closes the electric unlocking device, the power is lost and the magnetism is lost, the lock cylinder is propped by the spring to reset, and the convex block naturally slides to the wave trough of the cam part to drive the annular magnetic rotor to reset.

2. The powered security tag of claim 1, wherein: the lower positioning seat is of more than two claw-shaped structures with upward openings, a lock core movement limiting support column or a limiting part is arranged in the lower positioning seat, the claws buckle the outer ring of the bottom of the upper positioning seat, clearance grooves are formed among the claws, and a circumferential positioning buckle on the base below the lock core is clamped among the clearance grooves, so that the lock core is positioned by a circumferential buckle; the annular electromagnetic rotor top is spacing by last positioning seat bottom, and annular magnetism rotor base is held up by the support post, and lock core circumference location during the rotation, and can only make the action of pushing down under the protruding promotion in annular electromagnetic rotor bottom, and the distance that the lock core moved down is not more than the height of crest.

3. The powered security tag of claim 2, wherein: the lower positioning seat clearance groove is provided with an inclined plane opening, when the bottom lug extrudes the lock cylinder when the annular magnetic rotor rotates, the inclined plane opening downwards presses the lock cylinder positioning buckle, and friction force is converted into extrusion power.

4. The powered security tag of claim 1, wherein: the upper positioning seat and the upper cover are manufactured into an integral structure, and/or the lower positioning seat and the bottom shell are manufactured into an integral structure.

5. The powered security tag of claim 1, wherein: the annular magnetic rotor is composed of a rotor fixing seat and magnets which are arranged in the fixing seat and are symmetrical in structure, wherein the magnets are magnetic beads, magnetic blocks, magnetic columns, magnetic sheets, split magnetic rings with NS poles, integral magnetic rings, multi-pole magnetic rings, a plurality of magnetic rings or magnetic rings magnetized in different directions and are fixed in the rotor fixing seat.

6. The powered security tag of claim 5, wherein: magnetic blocks or magnetic bead fixing grooves are annularly and uniformly distributed in the rotor fixing seat, the bottom surface of the rotor fixing seat is provided with convex blocks, the magnetic blocks or the magnetic beads are symmetrically fixed in the fixing grooves, and the convex blocks are arranged on the bottom surface of the rotor fixing seat; or the fixed seat is provided with an annular groove, and the split type magnetic ring or the integral magnetic ring with the NS pole is directly placed in the annular groove.

7. The powered security tag of claim 1, wherein: the annular electromagnetic rotor is composed of a rotor fixing seat and an integral magnetic ring sleeved on the fixing seat, the integral magnetic ring is fixed at one end of the fixing seat, the other end of the fixing seat is fixed with a cam, and the cam is embedded with a lug of the circumferential positioning part.

8. The powered security tag according to any one of claims 1 to 6, characterized in that: locking mechanism fixes between upper and lower positioning seat, includes:

the lock core is provided with a central through hole, the upper part of the lock core is provided with a locking bead embedding part, and a nonmagnetic locking bead component is arranged in the lock core; after the anti-theft nail is inserted into the central through hole, a locking bead component formed by three locking beads arranged at the embedding part of the locking beads is placed for locking and positioning or loosening; the base below the lock core is provided with a circumferential positioning buckle and a cam part which is uniformly distributed with more than two wave crest and wave trough which have the same structure and are formed by inclined plane bulges with at least one inclined plane on one side along the upper surface of the outer edge, and during assembly, the circumferential positioning buckle is clamped in a gap between positioning claws of the lower positioning seat and is circumferentially fixed, so that the lock core cannot circumferentially rotate, and the lower positioning seat has a structure;

the conical steel bowl is fixed in the upper fixed seat and buckled at the upper part of the lock core, and the locking bead assembly is limited by the conical surface of the inner wall of the steel bowl and is pressed inwards to clamp the anti-theft nail;

the annular electromagnetic rotor is sleeved outside the lock core, the rotor fixing seat is provided with downward bulges, the number of the downward bulges is the same as that of the inclined plane bulges of the lock core, and after the annular electromagnetic rotor is sleeved on the lock core, the downward bulges at the bottom of the annular electromagnetic rotor are embedded between the wave troughs of the inclined plane bulges;

the lower positioning seat is of a claw-shaped structure with three positioning claws enclosing and an upward opening, a supporting column or a limiting step is arranged in the positioning claw enclosing, and an inclined plane opening is arranged at the bottom of a gap of each positioning claw and is used as a bottom unlocking position; limiting the downward maximum displacement of the annular electromagnetic rotor, so that the annular electromagnetic rotor cannot enable the lock cylinder to move downwards to abut against the bottom unlocking position of the lower positioning seat by pressing the wave trough of the cam part under the action of gravity or other downward external forces;

the inner wall of the upper positioning seat is provided with a flange, and when the steel bowl on the outer ring of the bottom is pushed into the upper positioning seat, the bottom edge of the steel bowl is clamped on the flange and is fixed in the upper positioning seat;

when the anti-theft label is assembled, the positioning claws of the lower positioning seat buckle the outer ring of the bottom of the upper positioning seat, gaps among the positioning claws are used as positioning grooves, the bottom edge of the annular electromagnetic rotor is supported by a support column or a step, the downward bulge of the annular electromagnetic rotor is arranged at the bottom among the inclined plane bulges of the lock cylinder, the bottom of the lock cylinder is upwards propped against by a spring, and the lock cylinder is circumferentially positioned and buckled and pressed at the inclined plane opening at the bottom of the gap of the positioning claws, so that the lock cylinder is circumferentially buckled and positioned; annular electromagnetism rotor top is spacing by positioning seat bottom, and lock core circumference location when annular magnetism rotor rotates, and can only make the action of pushing down under the protruding promotion in annular electromagnetism rotor bottom, and the distance that the lock core moved down is not more than the bellied height in inclined plane, the height of crest promptly.

9. The powered security tag according to any one of claims 1 to 4 or 7, characterized in that:

locking mechanism fixes between upper and lower positioning seat, and the lock core is equipped with from the top down according to the preface:

the side wall of the upper positioning seat is internally provided with a flange, a bottom outer ring and a positioning groove which are used for clamping and fixing the circumferential positioning part;

the circumferential positioning part is a positioning ring, the upper end of the circumferential positioning part is provided with a circumferential positioning buckle and clamped in the positioning groove, and the lower end of the circumferential positioning part is provided with a downward convex block;

the conical steel bowl is fixed in the upper fixed seat, the bottom edge of the conical steel bowl is abutted against the flange and is buckled at the upper part of the lock cylinder, and the locking ball assembly is limited by the conical surface of the inner wall of the steel bowl and is pressed inwards;

a lock core with a central through hole, a locking bead embedding part arranged at the upper part of the lock core, and a nonmagnetic locking bead component arranged in the lock core; the anti-theft nail can be placed in the locking ball component of the locking ball embedding part to be locked and positioned or loosened after being inserted into the central through hole; the outer side of the lock core is provided with a circumferential positioning part, at least more than two cams with the same wave crest and wave trough structure and a ring-shaped magnetic rotor V from top to bottom, and the number of downward bulges of the circumferential positioning part corresponds to the number of the wave crest and wave trough of the cam; the cam is fixedly sleeved outside the lock core, more than two wave crests and wave troughs with the same structure are arranged at the upper part of the cam, and the bottom of the cam is a wheel shaft fixedly clamped on the inner annular wall of the annular magnetic rotor; during assembly, the circumferential positioning buckles of the circumferential positioning parts are clamped in the positioning grooves of the upper positioning seat, and the number of the positioning grooves is not less than that of the circumferential positioning buckles or is consistent; the downward bulge is embedded in the wave trough of the cam, so that the lock cylinder cannot rotate in the circumferential direction;

in the annular magnetic rotor, the rotor fixing seat is provided with a central through hole and a downward convex shaft, the central through hole is matched with the outer diameter of the cam wheel rim, and the cam wheel rim is inserted and fixed in the central through hole from the upper part of the rotor fixing seat so that the annular magnetic rotor and the cam part are fixed into a whole; the circular magnetic ring is fixed on the downward convex shaft;

the lower positioning seat at least comprises a positioning claw and a supporting column or a limiting step; the lower positioning seat is provided with a limiting step to limit the maximum downward displacement of the annular magnetic rotor, so that the annular magnetic rotor cannot press the wave trough of the cam part to enable the lock cylinder to move downwards to abut against the bottom unlocking position of the lower positioning seat under the action of gravity or other downward external force;

a spring is arranged at the bottom of the lock cylinder, the lower end of the spring is abutted against the upper surface in the lower positioning seat, and the upper end of the spring jacks up the lock cylinder.

10. The powered security tag of claim 1, wherein: the electric unlocking device comprises a base, motor stator coils which are distributed in the base and are electrically connected and annularly arranged, and a concave annular surface or a plane upper cover at the center, wherein a touch-press type electric switch extends out from the center of the annular lower concave surface; the type of the motor in the electric lock opener is matched with the annular electromagnetic rotor.

Technical Field

The invention relates to an anti-theft label which is widely applied to the anti-theft of commodities in shops or supermarkets, in particular to an electric anti-theft label.

Background

The anti-theft label is an anti-theft product widely applied to the commodity market, is fixed on a commodity to be sold, and when the commodity to be sold is not processed by a cashier and the anti-theft label is taken down, the commodity can send out an alarm signal when passing through an outlet of a shopping mall so as to remind security personnel in the shopping mall. However, since security of the anti-theft tag is generally reduced after several years of use, products for the anti-theft tag are continuously being developed.

Application No. 201711054179.9 provides a pin lock type anti-theft tag and a lock opener thereof, the pin lock type anti-theft tag comprises a housing, wherein a lock cylinder for locking an anti-theft pin and unlocked by a magnetic lock opener is arranged in the housing, and the lock cylinder is provided with a lock piece for locking the anti-theft pin; the lock core is provided with a locking piece supporting device matched with a rotating magnetic field, and the locking piece supporting device can convert rotating motion into lifting motion under the action of the rotating magnetic field so as to enable a plurality of locking pieces on the locking piece supporting device to enter a locking position and unlock the locking piece supporting device. Due to the adoption of a new unlocking mode, the conventional unlocking device in the market cannot unlock the label, so that the anti-theft capability of the commodity is improved.

Utility model patent No. 201720795856.1 relates to an anti-theft device. The anti-theft label has the advantages of simple structure, convenience in use and reliable and stable performance. The technical scheme is as follows: the double-unlocking anti-theft label comprises a nail rod with a nail cap and a label seat with a steel ball type lock core; a movable block capable of vertically sliding is further positioned between the steel ball type lock cylinder and the wall of the label seat, one end of the movable block is arranged at the top end of the steel ball type lock cylinder, and the pressed end of the movable block is vertically slidably positioned in a slide way on the outer side of the steel ball type lock cylinder; an unlocking rail is further arranged in the label base, one end of the unlocking rail extends to the pressed end of the movable block, and the other end of the unlocking rail is communicated with an unlocking opening on the surface of the label base; and an unlocking rod matched with the cross section of the unlocking opening in shape is arranged.

The applicant discloses in its invention patent No. ZL20091004745.43 a magnetic-thrust anti-theft tag, comprising a housing composed of an upper cover and a base, a coil alarm and an anti-theft nail locking mechanism being provided between the upper cover and the base, the anti-theft nail being inserted into the housing from the upper cover and being positioned by the locking mechanism, wherein the locking mechanism comprises: the cross section is trapezoidal locking pearl cap, with locking pearl fixing base, the locking pearl fixing base that matches of locking pearl cap inner chamber, be no less than three locking pearls and the spring assembly who supports locking pearl fixing base, magnetic force lock opener and locking mechanism correspond to open locking mechanism by magnetic force lock opener, locking mechanism on be equipped with magnetic switch device, the magnet in the magnetic switch device is pushed by the magnet in the lock opener and is removed to the direction of keeping away from magnet, the magnet promotes locking mechanism and opens. The locking mechanism is unlocked through magnetic thrust instead of traditional magnetic attraction, and a simple, easy, safe and reliable form is provided for the commonly used anti-theft tag.

In addition, the applicant of the present invention has improved the above anti-theft structure, and the invention of patent No. 201320522186.8 discloses an anti-theft tag, which includes a housing and an anti-theft nail locking mechanism, wherein the anti-theft nail is inserted into the housing and locked and positioned by the locking mechanism, and unlocked by a magnetic unlocking device, the locking mechanism sequentially includes from top to bottom: the locking device comprises a locking bead cap, a locking bead fixing seat matched with an inner cavity of the locking bead cap, at least three locking beads and a spring abutting against the locking bead fixing seat, wherein a limiting sleeve is sleeved below the locking bead fixing seat and limited by a base, a through hole is formed in the limiting sleeve, a pair of fin-shaped inverted slopes which are symmetrical in radial structure, are planar above the limiting sleeve and are folded downwards are arranged on the periphery of the limiting sleeve, a protruding part at the bottom of the locking bead fixing seat is sleeved above the through hole, the spring is arranged in the through hole in a penetrating manner, and at least one steel ball is supported on the bottom surface of the limiting sleeve; the steel ball is placed at the lowest position of the inclined plane of the base, can roll along the inclined plane under the action of magnetic force, loses the support of the limiting sleeve member, and realizes safe unlocking.

The applicant is dedicated to research, development and production of anti-theft tags for many years, all anti-theft tags in the market at present comprise an unlocking device formed by a combined structure of magnets to unlock, along with the understanding of a magnetic unlocking mechanism, the magnets can be conveniently purchased in the market, and the original anti-theft effect of the anti-theft tags is weakened through combination.

Therefore, it is necessary to reform an unlocking structure of the anti-theft label.

Disclosure of Invention

In view of the above-mentioned drawbacks, the present invention aims to provide an electric anti-theft tag, in which a locking bead is improved to abut against a locking mechanism, and only by electrically unlocking the tag, the locking bead can be moved away, so as to safely unlock the locking mechanism.

The purpose of the invention is realized by the following technical scheme: the utility model provides an electronic theftproof label, includes the casing that comprises upper cover and drain pan, establishes theftproof nail locking mechanism between upper cover and the drain pan, and the theftproof nail inserts in the casing and is locked the location by locking mechanism from the upper cover, wherein: electronic unlocking ware corresponds with locking mechanism, utilizes brushless motor circular telegram back, and the inside magnetism rotor of winding stator production electromagnetic field drive security label in the motor unblanks, locking mechanism fix between upper and lower positioning seat, include:

the lock core is provided with a central through hole, three locking through holes are uniformly distributed in the circumferential direction of the upper part of the lock core, and nonmagnetic locking balls are arranged in the locking through holes; the outer side of the lock cylinder is fixed with a circumferential positioning part and at least more than two cam parts with the same wave crest and wave trough structure, and the circumferential positioning part is clamped in a positioning groove of the upper positioning seat or the lower positioning seat for circumferential fixation during assembly, so that the lock cylinder cannot rotate in the circumferential direction;

the conical steel bowl is fixed in the upper fixed seat and buckled at the upper part of the lock core, and the locking bead is limited by the conical surface of the inner wall of the steel bowl;

the annular magnetic rotor is sleeved outside the lock cylinder, a magnet or a coil for inducing magnetism is arranged in the annular magnetic rotor in an annular mode, protruding blocks corresponding to the cam part are evenly distributed on the annular magnetic rotor, the protruding blocks are embedded between wave troughs of the cam part, the lower positioning seat is provided with limiting steps for limiting the downward maximum displacement of the annular magnetic rotor, and the annular magnetic rotor cannot enable the lock cylinder to move downwards to abut against the bottom unlocking position of the lower positioning seat by pressing the wave troughs of the cam part under the action of gravity or other downward external forces;

the spring is arranged at the bottom of the lock cylinder, the lower end of the spring abuts against the upper surface in the lower positioning seat, the upper end of the spring jacks up the lock cylinder to force the locking beads on the lock cylinder to be pressed inwards by the inner wall of the steel bowl to press the anti-theft nails, and when the anti-theft nails are inserted, the locking beads clamp the anti-theft nails;

when the electric unlocking device is triggered, after the brushless motor is electrified, a winding stator in the motor generates a rotating electromagnetic field to drive the annular magnetic rotor at the center of the magnetic field to rotate circumferentially, and the convex block moves from the wave trough of the cam part to the wave crest to drive the annular magnetic rotor to move upwards to the limiting ring abutting against the bottom of the upper positioning seat and further press the cam to drive the lock core to move downwards to compress the spring;

when the locking mechanism leaves the electric unlocking device or closes the electric unlocking device, the power is lost and the magnetism is lost, the lock cylinder is propped by the spring to reset, and the convex block naturally slides to the wave trough of the cam part to drive the annular magnetic rotor to reset.

The anti-theft tag is electrically unlocked, so that the safety and the reliability of the anti-theft tag are improved, and the cost of the unlocking device can be reduced.

On the basis of the scheme, the lower positioning seat is of more than two claw-shaped structures with upward openings, a lock core moving limiting support column or a limiting part is arranged in the lower positioning seat, the claw-shaped structure buckles the outer ring of the bottom of the upper positioning seat, a clearance groove is formed between the claws, and a circumferential positioning buckle on the bottom seat below the lock core is clamped between the clearance grooves, so that the lock core is positioned by the circumferential buckle; the annular electromagnetic rotor top is spacing by last positioning seat bottom, and annular magnetism rotor base is held up by the support post, and lock core circumference location during the rotation, and can only make the action of pushing down under the protruding promotion in annular electromagnetic rotor bottom, and the distance that the lock core moved down is not more than the height of crest.

Furthermore, the lower positioning seat clearance groove is provided with an inclined plane opening, when the bottom lug extrudes the lock cylinder when the annular magnetic rotor rotates, the inclined plane opening presses the lock cylinder positioning buckle, and friction force is converted into extrusion power.

On the basis of the scheme, the upper positioning seat and the upper cover are manufactured into an integral structure, and/or the lower positioning seat and the bottom shell are manufactured into an integral structure. The assembly cost and the part cost are reduced through integral forming.

The inner wall of the upper positioning seat is provided with a flange, and when the steel bowl is pushed into the upper positioning seat, the bottom edge of the steel bowl is clamped on the flange and is fixed in the upper positioning seat.

The lower positioning seat is provided with a spring seat for fixing the spring.

On the basis of the scheme, the annular magnetic rotor is composed of a rotor fixing seat and magnets which are arranged in the fixing seat and are structurally symmetrical, wherein the magnets are magnetic beads, magnetic blocks, magnetic columns, magnetic sheets, split magnetic rings with NS poles and comprising a plurality of magnetic rings and semicircular magnetic rings, integral magnetic rings, multi-pole magnetic rings or magnetic rings magnetized in different directions and fixed in the rotor fixing seat.

Furthermore, magnetic blocks or magnetic bead fixing grooves are annularly and uniformly distributed in the rotor fixing seat, and a plurality of magnetic blocks, magnetic sheets, magnetic columns or magnetic beads are symmetrically fixed in the fixing grooves; or the fixed seat is provided with an annular groove, and the split type magnetic ring or the integral magnetic ring with the NS pole is directly placed in the annular groove.

Or, the annular electromagnetic rotor is composed of a rotor fixing seat and an integral magnetic ring sleeved on the fixing seat, the integral magnetic ring is fixed at one end of the fixing seat, the other end of the fixing seat is fixed with the cam, and the cam is embedded with the lug of the circumferential positioning part.

The annular magnetic rotor can be matched with a synchronous motor, an asynchronous motor, a shaded pole motor, a disc motor and a transverse and axial flux motor and used as a driving movable stator in an electric unlocking device for unlocking.

The invention provides an electric lock opener, which corresponds to the anti-theft tag structure and comprises a base, motor stator coils which are distributed in the base and are electrically connected and annularly arranged, and a concave annular surface upper cover at the center, wherein a touch-press type electric switch extends out from the center of the annular concave surface; the type of the motor in the electric lock opener is matched with the annular electromagnetic rotor.

The invention has the beneficial effects that: the anti-theft tag can not be opened through the combination of the magnets, an electric unlocking mechanism is required, and only the electric unlocking device matched with the anti-theft tag can drive the annular electromagnetic rotor to rotate, so that the lock cylinder moves downwards, and the anti-theft nail is loosened.

Drawings

FIG. 1 is an exploded view of an embodiment 1 of the electric anti-theft tag;

FIG. 2 is a top view of a magnetic ring rotor;

FIG. 3 is a schematic view of the lower positioning seat;

FIG. 4 is an exploded view of the electric lock opener;

FIG. 5 is a schematic assembled external view of the electric lock opener;

fig. 6 is a schematic cross-sectional structural view of a locking state of the security tag (magnetic ring in embodiment 1);

FIG. 7 is a schematic cross-sectional view of a locking state of the security tag;

FIG. 8 is a schematic view of an unlocked state of the security tag;

FIG. 9 is a schematic view of a second security tag in an unlocked state;

FIG. 10 is a schematic view of the motor driving the rotor to rotate;

FIG. 11 is the top view of the magnetic block rotor in embodiment 2;

FIG. 12 is an exploded schematic view of a magnetic block rotor of embodiment 2;

FIG. 13 is a top view of the rotor with semicircular magnetic rings in accordance with embodiment 3;

FIG. 14-schematic exploded view of a magnetic bead rotor;

FIG. 15-top view of a magnetic bead rotor;

FIG. 16 is an exploded view of the embodiment 5 of the electric anti-theft tag;

fig. 17 is a schematic view of a driving principle of the electric anti-theft tag corresponding to the first motor stator in embodiment 5;

fig. 18 is a schematic view of a driving principle of the electric anti-theft tag corresponding to the second motor stator in embodiment 5;

the reference numbers in the figures illustrate:

100. 100' -an anti-theft tag;

101-anti-theft nail;

102-upper cover;

103. 103' — an upper positioning seat;

1031-flange; 1032-bottom outer ring; 1033' -a positioning groove;

104-steel bowl;

105-lock core;

1051-central via; 1052-locking bead insert;

1053-lock core base;

10531. 10531' -a circumferential positioning portion; 10532. 10532' — a beveled protrusion or cam;

106-locking bead assembly;

107-spring;

108. 108' -lower positioning seat;

1081-positioning pawl; 1082-support column or limit step; 1083-bevel port;

109-bottom case;

in the case of the example 1, the following examples were conducted,

200-annular electromagnetic rotor I;

201-rotor holder; 2011-cam;

202-circular magnetic ring;

in example 2

400-annular electromagnetic rotor II;

401-rotor holder;

402. 403-first and second magnetic blocks;

in example 3

300-annular electromagnetic rotor III;

301-rotor holder; 4011-downwardly convex;

302. 303-first and second semi-circular magnetic rings;

in example 4

500-annular electromagnetic rotor four;

501-rotor fixing seat; 5011 — downward projection;

502. 503-first and second magnetic beads;

in example 5

900-ring-shaped electromagnetic rotor five;

901-rotor holder; 9011 — central through hole; 9012 — downward protruding shaft;

902-circular magnetic ring;

electric lock opener

600-electric lock opener;

601-a concave annular upper cover;

602-rubber ring;

603-motor stator coil set;

6031-motor stator coil set one;

6032-motor stator coil set two;

604-base;

700-switch;

800-Power line.

Detailed Description

Example 1

As shown in fig. 1, an exploded schematic view of an electric anti-theft tag in embodiment 1, a top view of a magnetic ring rotor in fig. 2, a schematic view of a positioning seat in fig. 3, an exploded schematic view of an electric lock opener in fig. 4, an assembled appearance schematic view of an electric lock opener in fig. 5, a schematic view of a cross-sectional structure in a locking state of an anti-theft tag in fig. 6 (a magnetic ring in embodiment 1), a schematic view of a cross-sectional structure in a locking state of an anti-theft tag in fig. 7, a schematic view of a cross-sectional structure in a locking state of an anti-theft tag in fig. 8, a schematic view of an unlocking state of an anti-theft tag in fig. 8, and a schematic view of an unlocking state of an anti-theft tag in fig. 9:

an electronic anti-theft label 100, as shown in fig. 1, includes a housing composed of an upper cover 102 and a bottom shell 109, a locking mechanism of an anti-theft nail is provided between the upper cover 102 and the bottom shell 109, the anti-theft nail 101 is inserted into the housing from the upper cover 102 and locked and positioned by the locking mechanism, an electronic lock-opener 600 corresponds to the locking mechanism, the locking mechanism is opened or locked by the electronic lock-opener 600, the locking mechanism of this embodiment is fixed between the upper and lower positioning bases 103, 108, including:

a lock core 105 with a central through hole 1051, a locking bead embedding part 1052 arranged at the upper part of the lock core, and a non-magnetic locking bead component 106 arranged inside; after the anti-theft nail 101 is inserted into the central through hole 1051, the anti-theft nail can be placed in the locking bead assembly 106 formed by the three locking beads of the locking bead embedding part 1052 and locked and positioned or unlocked; the bottom base 1053 under the lock core 105 outside the lock bead embedding part 1052 has a circumferential positioning part 10531 (or called as a circumferential positioning buckle) and a cam part evenly distributed with more than two wave crests and wave troughs of the bevel protrusion 10532 with the same structure and at least one side being a bevel along the upper surface of the outer edge, the circumferential positioning buckle 10531 is clamped in the gap between the positioning claws 1081 of the lower positioning seat 108 for circumferential fixation during assembly, so that the lock core can not rotate in the circumferential direction, and the structure of the lower positioning seat 108 is as shown in fig. 3;

a conical steel bowl 104 fixed in the upper fixed seat 103 and buckled on the upper part of the lock core 105, and a locking ball component 106 is limited by the conical surface of the inner wall of the steel bowl 104 and is pressed inwards to clamp the anti-theft nail 101;

a first annular electromagnetic rotor 200, as shown in fig. 2, which is sleeved outside the lock core 105, the first annular electromagnetic rotor 200 of this embodiment is composed of a rotor fixing seat 201 and a magnetic ring 202 embedded in the rotor fixing seat 201, the rotor fixing seat 201 has downward protrusions 2011, the number of the downward protrusions 2011 is the same as the number of the inclined plane protrusions 10532 of the lock core, after the first annular electromagnetic rotor 200 is sleeved on the lock core 105, the downward protrusions 2011 at the bottom lower surface of the first annular electromagnetic rotor are embedded between the valleys of the inclined plane protrusions 10532;

the spring 107 is arranged at the bottom of the lock core 105 and abuts against the upper surface of the lower positioning seat 108, the upper end of the spring jacks up the lock core 105 to force the locking ball assembly 106 on the lock core 105 to be pressed against the anti-theft nail 101 inwards by the inner wall of the steel bowl 104, and when the anti-theft nail 101 is inserted, the locking ball assembly 106 clamps the anti-theft nail 101; pushing the lock core 105 upwards to enable the locking bead assembly 106 to be pressed inwards by the inner wall of the steel bowl 104 to press the anti-theft nail 101;

as shown in fig. 3, the lower positioning seat 108 is a claw-shaped structure enclosed by three positioning claws 1081 and having an upward opening, a supporting column 1082 or a limiting step is arranged inside the enclosure of the positioning claws 1081, and an inclined plane opening 1083 is arranged at the bottom of the gap of the positioning claw 1081 as a bottom unlocking position; limiting the downward maximum displacement of the first annular electromagnetic rotor 200, so that the first annular electromagnetic rotor 200 cannot enable the lock cylinder to move downwards to abut against the bottom unlocking position of the lower positioning seat by pressing the wave trough of the cam part under the action of gravity or other downward external forces;

in this embodiment, as shown in fig. 1, the inner wall of the upper positioning seat 103 has a flange 1031, and when the steel bowl 104 of the bottom outer ring 1032 is pushed into the upper positioning seat 103, the bottom edge of the steel bowl 104 is clamped on the flange 1031 and is fixed in the upper positioning seat 103.

When the anti-theft tag 100 is assembled, the positioning claws 1081 buckle the bottom outer ring 1032 of the upper positioning seat 103, gaps are reserved among the positioning claws 1081, the bottom edge of the first annular electromagnetic rotor 200 is supported by the support columns 1082 or steps, the downward protrusions 2011 of the first annular electromagnetic rotor 200 are arranged at the bottom among the inclined surface protrusions 10532 of the lock cylinder 105, the bottom of the lock cylinder 105 is upwards propped against by the spring 107, and the lock cylinder circumferential positioning buckles 10531 are pressed downwards at the inclined surface openings 1083 at the bottoms of the gaps of the positioning claws 1081, so that the lock cylinder 105 is circumferentially buckled and positioned; the upper portion of the first annular electromagnetic rotor 200 is limited by the bottom of the upper positioning seat 103, the lock cylinder 105 is circumferentially positioned when the first annular magnetic rotor 200 rotates, the lock cylinder can only be pushed downwards by the protrusion at the bottom of the first annular electromagnetic rotor 200, and the downward movement distance of the lock cylinder is not greater than the height of the protrusion of the inclined plane, namely the height of the wave crest.

An electric unlocking device 600 matched with the anti-theft label 100 is composed of an annular base 604, motor stator coils 603 distributed in a groove of the annular base 604 and an upper cover 603 with a concave arc-shaped surface at the center as shown in fig. 4 and fig. 5, a power line 800 is led out from the bottom of the annular base 604, the motor stator coils 603 are connected with the power line 800 through a touch type electric switch 700, the touch type electric switch 700 extends out from the center of the concave arc-shaped surface, when the anti-theft label 100 is placed on the concave arc-shaped surface, a switch 400 triggers a motor to start to trigger the electric unlocking device 600, a rotating magnetic field generated by the motor stator coils 603 when the motor is electrified is utilized to drive an annular magnetic rotor 200 to rotate circumferentially, as shown in fig. 10, because a lock cylinder 105 cannot rotate circumferentially, a convex block moves from a wave trough of a cam part to a wave crest to drive the annular magnetic rotor to move upwards to abut against a limiting ring at the bottom of an upper positioning seat, the cam is then forced to drive the lock cylinder 105 to move the compression spring 107 downward, and when the projection moves to a position close to the wave crest, the lock cylinder 105 moves downward to abut against the bottom unlocking position of the lower positioning seat.

When the anti-theft tag 100 leaves the electric lock opener 600 or closes the electric lock opener 600, the electricity is lost and the magnetism is lost, the lock cylinder 105 is propped against the reset by the spring 107, and the convex block naturally slides to the wave trough of the cam part to drive the annular magnetic rotor to reset. Fig. 6 and 7 show the locked state of the security tag 100, which is a schematic cross-sectional view of the security tag 100 at different angles, where the security tag 100 is above the electric lock 600, and the bottom of the security tag 100 is not in contact with the contact of the switch 700, that is, the security tag 100 is not unlocked above the electric lock 600.

As shown in fig. 8 and 9, the anti-theft tag 100 is unlocked, the anti-theft tag 100 is placed on the electric lock opener 600, the bottom of the anti-theft tag 100 touches and presses a contact of the switch 700, the electric lock opener 600 unlocks the anti-theft tag 100, an electromagnetic field generated by the motor stator coil 603 drives the annular electromagnetic rotor one 200 to rotate, as shown in fig. 10, the downward protrusion 2011 of the rotor fixing seat 201 rotates at a high speed along the inclined direction of the inclined protrusion 10532, the lock core 105 is pressed down, and the locking bead assembly 106 releases the anti-theft nail 101; when the electric lock opener 600 is left or the motor switch is turned off, as shown in the state of fig. 6 or 7, the power is lost and the magnetism is lost, the lock cylinder 105 is propped against the spring 107 to reset, the locking ball assembly 106 is inwards extruded by the conical surface of the steel bowl, and the anti-theft nail 101 is clamped.

When the anti-theft tag 100 is placed on the electric lock opener 600, as shown in fig. 8 and 9, after the motor is started, a rotating magnetic field is generated on the electronic stator coil, and the magnetic field drives the rotor one 200 to rotate.

The motor can adopt the product of market purchase, for special pearl design magnet integrated configuration's unlocking ware, can reduce unlocking ware cost.

The invention adopts the motor for unlocking, needs to be connected with commercial power, prevents individuals from adopting magnetic structure combination for unlocking, and improves the anti-theft effect.

The upper positioning seat 103 and the upper cover 102 may be integrally formed to form an integral structure.

The lower positioning seat 108 and the bottom shell 109 are manufactured as an integral structure.

In this embodiment, an electric lock opener 600 driven by mains supply through a power line 800 is adopted, and corresponds to the above anti-theft tag structure, the electric lock opener 600 is composed of a base 604, motor stator coils 603 which are distributed in the base 604 and electrically connected and annularly arranged, and a concave annular surface upper cover 601 at the center, a touch type electric switch 700 extends out from the center of the annular lower concave surface, when the anti-theft tag is pressed on the concave surface, the switch 700 is triggered, the motor is started, and a magnetic field generated after the motor is started pushes an annular electromagnetic rotor one 200 in the anti-theft tag to rotate and unlock; the motor type in the electric lock opener 600 matches with the annular electromagnetic rotor one 200.

For an electric unlocking device adopting a disc type motor, the central upper cover is a plane, and the magnetic ring adopts a multi-pole magnetic ring.

Example 2

Fig. 12 is an exploded schematic view of the magnetic block rotor in the embodiment and fig. 13 is a top view of the magnetic block rotor in the embodiment:

the other parts are the same as the embodiment 1, except that the second annular electromagnetic rotor 400 is sleeved on the lock core 105, the second annular electromagnetic rotor 400 of the embodiment is composed of a rotor fixing seat 401 and first and second magnetic blocks 402 and 403 symmetrically embedded in the rotor fixing seat 401, the first and second magnetic blocks 402 and 403 form N, S poles, the rotor fixing seat 401 has downward protrusions 4011, the number of the downward protrusions 3011 is the same as the number of the inclined protrusions 10532 of the lock core 105, and after the second annular electromagnetic rotor 400 is sleeved on the lock core 105, the downward protrusions 4011 on the lower surface of the bottom of the second annular electromagnetic rotor are embedded between the inclined protrusions 10532.

The unlocking mode is the same as that of embodiment 1, except that the type of the motor in the electric lock opener 600 is matched with that of the second annular electromagnetic rotor 400.

Example 3

As shown in the schematic view of the assembly structure of the electromagnetic rotor structure of embodiment 3 in fig. 11 being an NS-pole semicircular magnetic ring,

the other parts are the same as embodiment 1, except that the third annular electromagnetic rotor 300 is sleeved on the lock core 105, the third annular electromagnetic rotor 300 of this embodiment is composed of a rotor fixing seat 301, and first and second semicircular magnetic rings 302 and 303 embedded in the rotor fixing seat 301, the first and second semicircular magnetic rings 302 and 303 constitute N, S poles, the rotor fixing seat 301 has downward protrusions (not shown), the number of the downward protrusions is the same as that of the inclined plane protrusions 10532 of the lock core 105, and after the third annular electromagnetic rotor 300 is sleeved on the lock core 105, the downward protrusions at the bottom are embedded between the inclined plane protrusions 10532.

The unlocking manner is the same as that of embodiment 1 except that the type of the motor in the electric lock opener 600 is matched with the annular electromagnetic rotor three 300.

Example 4

As shown in FIG. 14-exploded schematic view of the magnetic bead rotor and FIG. 15-top view of the magnetic bead rotor:

the other steps are the same as those of embodiment 1, except that the annular electromagnetic rotor four 500 is sleeved on the lock core 105, the annular electromagnetic rotor four 500 of this embodiment is composed of a rotor fixing seat 501 and first and second magnetic beads 502 and 503 embedded in the rotor fixing seat 501, the rotor fixing seat 501 has downward protrusions 5011, the number of the downward protrusions 5011 is the same as that of the inclined protrusions 10532 of the lock core 105, and after the annular electromagnetic rotor four 500 is sleeved on the lock core 105, the downward protrusions 5011 on the bottom lower surface are embedded between the inclined protrusions 10532.

The unlocking manner and principle are the same as those of embodiment 1, except that the type of the motor in the electric lock opener 600 is matched with the annular electromagnetic rotor four 500.

Example 5

As shown in fig. 16, an exploded schematic view of the electric anti-theft tag of the embodiment is shown: the upper and lower positioning seats 103 ', 108', the lock core 105 'and the annular electromagnetic rotor five 200' are different from the embodiment 1,

an electric anti-theft tag 100 'is shown in fig. 16, and includes a housing composed of an upper cover 102 and a bottom shell 109, an anti-theft nail locking mechanism is provided between the upper cover 102 and the bottom shell 109, an anti-theft nail 101 is inserted into the housing from the upper cover 102 and locked and positioned by the locking mechanism, an electric lock opener corresponds to the locking mechanism, the locking mechanism is opened or locked by the electric lock opener, the locking mechanism of this embodiment is fixed between an upper positioning seat 103' and a lower positioning seat 108 ', and a lock core 105' is sequentially assembled from top to bottom:

compared with the structure of the upper positioning seat 103 in embodiment 1, the upper positioning seat 103 ' has a flange 1031 on the inner side of the sidewall and a bottom outer ring 1032 turned outwards at the bottom of the sidewall, but positioning grooves 1033 ' are uniformly distributed on the sidewall for clamping and fixing the circumferential positioning part 10531 ';

the circumferential positioning part 10531 'of the embodiment is a positioning ring, the upper end of the circumferential positioning part is provided with a circumferential positioning buckle, the circumferential positioning buckle is clamped in the positioning groove 1033', and the lower end of the circumferential positioning part is provided with a downward convex block;

a conical steel bowl 104 fixed in the upper fixed seat 103 ', the bottom edge of which is pressed against the flange 1031 and buckled on the upper part of the lock core 105', and a locking ball component 106 is limited by the conical surface of the inner wall of the steel bowl and is pressed inwards, in the embodiment, the locking ball component 106 is three non-magnetic steel balls with the same structure;

a lock core 105 'with a central through hole, wherein the upper part of the lock core 105' is provided with a locking bead embedding part 1052 which is internally provided with a nonmagnetic locking bead component 106; after the anti-theft nail 101 is inserted into the central through hole, the locking bead assembly 106 arranged on the locking bead embedding part 1052 can be locked and positioned or released; the outer side of the lock core 105 is provided with a circumferential positioning part 10531 ', at least more than two cams 10532' with the same wave crest and wave trough and a five annular magnetic rotor 900 from top to bottom, and the number of downward bulges of the circumferential positioning part 10531 'corresponds to the number of the wave crest and wave trough of the cams 10532' in the embodiment; the cam 10532 ' is fixedly sleeved outside the lock core 105 ', the upper part of the cam is provided with more than two wave crests and wave troughs with the same structure, and the bottom of the cam is a wheel shaft which is fixedly clamped on the inner annular wall of the annular magnetic rotor five 200 '; during assembly, the circumferential positioning buckles of the circumferential positioning part 10531 'are clamped in the positioning grooves 1033' of the upper positioning seat 103 ', and the number of the positioning grooves 1033' is not less than or equal to that of the circumferential positioning buckles; the downward protrusions are embedded in the valleys of the cam 10532' to prevent the lock cylinder from rotating circumferentially, as shown in fig. 16;

the annular magnetic rotor five 900 is sleeved outside the lock cylinder 105 'and comprises a rotor fixing seat 901 and a circular magnetic ring 902, the rotor fixing seat 901 is provided with a central through hole 9011 and a downward convex shaft 9012, the central through hole 9011 is matched with the outer diameter of a rim of the cam 10532', and the rim of the cam 10532 'is fixedly inserted into the central through hole 9011 from above the rotor fixing seat 201', so that the annular magnetic rotor five 900 and the cam part are fixed into a whole; the circular magnetic ring 902 is fixed on the downward convex shaft 9012;

the annular electromagnetic rotor is composed of a rotor fixing seat and an integral magnetic ring sleeved on the fixing seat, one end of the fixing seat is fixedly provided with the integral magnetic ring, the other end of the fixing seat is fixedly provided with a cam, and the cam is embedded with a lug of the circumferential positioning part;

the lower positioning seat 108 has the same or similar structure as that of the embodiments 1 to 4, and at least comprises a positioning claw 1081 and a support column or a limiting step 1082; the lower positioning seat is provided with a limiting step to limit the maximum downward displacement of the annular magnetic rotor, so that the annular magnetic rotor cannot press the wave trough of the cam part to enable the lock cylinder to move downwards to abut against the bottom unlocking position of the lower positioning seat under the action of gravity or other downward external force;

the spring 107 is arranged at the bottom of the lock cylinder 105', the lower end of the spring 107 abuts against the upper surface in the lower positioning seat 108, the upper end of the spring 107 jacks up the lock cylinder to force the locking ball assembly 106 on the lock cylinder to be inwards pressed against the anti-theft nail 101 by the inner wall of the steel bowl 104, and when the anti-theft nail 101 is inserted, the locking ball clamps the anti-theft nail 101;

the electric unlocking device 600 is the same as that in embodiment 1, when the electric unlocking device 600 is triggered, the rotating magnetic field generated by the stator when the motor is powered on is utilized to drive the five circumferential directions of the annular magnetic rotor to rotate, as shown in fig. 10, as the lock cylinder 105 'cannot rotate circumferentially, the protruding block moves from the wave trough of the cam part to the wave crest, the five 900 annular magnetic rotor is driven to move downwards, the lock cylinder is driven to move downwards to compress the spring, the lock cylinder abuts against the limiting part of the lower positioning seat 108, and when the protruding block moves to a position close to the wave crest, the lock cylinder 105' moves downwards to abut against the bottom of the lower positioning seat 108 to unlock the position.

When the locking mechanism leaves the electric lock opener 600 or closes the electric lock opener 600, the anti-theft tag of the embodiment loses electricity and magnetism, the lock cylinder 105' is propped against the reset by the spring 107, and the convex block naturally slides to the wave trough of the cam part to drive the annular magnetic rotor five 900 to reset.

The electric lock opener can also be in other stator structures, such as a driving principle schematic diagram of the electric anti-theft tag corresponding to the first motor stator, as shown in fig. 17; and a driving principle schematic diagram of the electric anti-theft tag corresponding to the second motor stator is shown in fig. 18.