Special anti-theft lock cylinder label

Abstract

The present invention relates to an anti-theft device. The purpose is to provide a special anti-theft lock core label, which should have the characteristics of simple structure, easy use and good anti-theft effect. The technical solution is: a special anti-theft lock core label, including a nail cap with a nail rod and a clamp plugged with the nail cap; the clamp includes an outer shell and a steel sleeve arranged inside the outer shell and a three-ball seat with three steel balls; the characteristic is that: the inner shell is also provided with a support member, a toggle member that drives the support member to move, and an elastic member that applies a thrust to the toggle member so that the support member pushes the three-ball seat upward to clamp the nail rod; the support member and the toggle member are rotatably positioned in the outer shell; the toggle member is provided with an iron insert, and under the attraction of horizontal magnetic force, the iron insert can drive the toggle member to overcome the resistance of the elastic member and move in the reverse direction so that the support member releases the three-ball seat.

Description

Technical Field

[0001] The invention relates to an anti-theft device, in particular to a special anti-theft lock core label. Background Art

[0002] At present, the anti-theft tag is widely used in shopping malls, supermarkets and other places. Its internal lock core is a three-ball seat structure. It is locked by clamping the lock pin that passes through the product. The use of a magnetic unlocking device can attract the three-ball seat to move to release the lock pin to unlock. It is very convenient to use and suitable for anti-theft protection of various types of goods. However, there are still some shortcomings in the anti-theft tag: since the magnetic unlocking device equipped with the anti-theft tag is relatively common and very easy to obtain from the market, it is easy for criminals to bring the magnetic unlocking device into shopping malls and supermarkets to open the lock core and steal goods; if the anti-theft tag is hit with external force, the three-ball seat structure is easy to shift and cause accidental unlocking, so there is a great safety hazard, which needs to be improved in time. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the above-mentioned background technology and provide a special anti-theft lock cylinder label, which should have the characteristics of simple structure, easy use and good anti-theft effect.

[0004] The technical solution of the present invention is:

[0005] A special anti-theft lock core label comprises a nail cap with a nail rod and a clamp plugged with the nail cap; the clamp comprises an outer shell, a steel sleeve arranged inside the outer shell, and a three-ball seat with three steel balls; the characteristic is that: a support member, a toggle member driving the support member to move, and an elastic member applying a thrust to the toggle member so that the support member presses upward against the three-ball seat to clamp the nail rod; the support member and the toggle member are rotatably positioned in the outer shell; an iron inlay is provided on the toggle member, and under horizontal magnetic attraction, the iron inlay can drive the toggle member to overcome the resistance of the elastic member and move in the reverse direction so that the support member releases the three-ball seat.

[0006] The toggle member is provided with a locking arm and an unlocking arm; a socket is provided between the locking arm and the unlocking arm.

[0007] The iron insert comprises a main iron insert arranged on the locking arm and a secondary iron insert arranged on the unlocking arm.

[0008] The support member is provided with a support arm and a drive arm, the support arm extends to the bottom of the three-ball seat, and the drive arm extends into the socket of the toggle member.

[0009] A baffle plate extending toward each other is arranged between the locking arm and the unlocking arm, and a certain gap is maintained between the two baffle plates to form the socket.

[0010] The housing is provided with two elastic members, two supporting members and two toggle members symmetrically arranged about the three ball seats, and each elastic member drives a supporting member to move through a toggle member.

[0011] The elastic member is a spring, and two ends of the spring respectively support the upper locking arm and the shell, or the elastic member is a torsion spring, and two torsion arms of the torsion spring respectively support the toggle member and the shell.

[0012] An inner shell is also arranged inside the outer shell, a steel sleeve is fixed on the upper part of the inner shell, a three-ball seat can be vertically slidably positioned in the steel sleeve, and a supporting member and a toggle member can be rotatably positioned in the inner shell.

[0013] The outer shell includes a base and a top cover; the inner shell includes a rear shell and a front shell.

[0014] The rear shell is provided with a first supporting shaft and a second supporting shaft, the toggle member is rotatably positioned on the first supporting shaft, and the supporting member is rotatably positioned on the second supporting shaft.

[0015] The beneficial effects of the present invention are:

[0016] The present invention adds a rotatable supporting member and a toggle member inside the clamp, and uses an elastic member to apply a thrust to the toggle member so that the toggle member presses against the three-ball seat, and the three-ball seat then tightens the nail rod to achieve locking. When unlocking, a specially designed special magnetic unlocking device is required to drive the supporting member and the toggle member to overcome the resistance of the elastic member and rotate in the opposite direction to loosen the three-ball seat and release the nail rod. If a conventional unlocking device on the market is used or an external force is used to knock and try to unlock, the supporting member and the toggle member cannot be driven to rotate, and the three-ball seat can always lock the nail rod to avoid accidental unlocking. Therefore, the present invention is not only simple and reliable in structure and easy to operate, but also has improved anti-theft capabilities and effectively ensures the safety of goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is one of the three-dimensional structural schematic diagrams of Example 1.

[0018] Figure 2 This is the second schematic diagram of the three-dimensional structure of Example 1.

[0019] Figure 3 It is a schematic diagram of the main structure of Example 1.

[0020] Figure 4 It is a schematic diagram of the top structure of Example 1.

[0021] Figure 5 This is one of the cross-sectional structural schematic diagrams of Example 1.

[0022] Figure 6 This is the second schematic diagram of the cross-sectional structure of Example 1 ( Figure 5 Section and Figure 6The sections are perpendicular to each other).

[0023] Figure 7 This is an exploded view of Example 1.

[0024] Figure 8 It is a schematic diagram of the internal structure of Example 1.

[0025] Fig. 9 yes Figure 8 Schematic diagram of the main structure (front shell omitted).

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the top cover of Example 1.

[0027] Fig.11 It is a schematic diagram of the three-dimensional structure of the base of Example 1.

[0028] Fig.12 It is a schematic diagram of the three-dimensional structure of the front shell of Example 1.

[0029] Fig.13 It is a schematic diagram of the three-dimensional structure of the rear shell of Example 1.

[0030] Fig.14 It is a schematic diagram of the three-dimensional structure of the toggle member of Example 1.

[0031] Fig.15 It is a schematic diagram of the three-dimensional structure of the support member of Example 1.

[0032] Fig.16 It is a schematic diagram of the front view structure of the spring of Example 1.

[0033] Fig.17 It is a schematic diagram of the three-dimensional structure of Example 2.

[0034] Fig.18 It is a schematic diagram of the cross-sectional structure of Example 2.

[0035] Fig.19 It is a schematic diagram of the internal structure of Example 2 (the front shell is omitted).

[0036] Fig. 20 yes Fig.19 Exploded diagram.

[0037] Fig.21 It is a schematic diagram of the three-dimensional structure of the rear shell of Example 2.

[0038] Fig. 22 It is a schematic diagram of the three-dimensional structure of the toggle member of Example 2.

[0039] Fig.23 It is a schematic diagram of the three-dimensional structure of the torsion spring of Example 2.

[0040] Fig.24It is a schematic diagram of the unlocking method of Example 1.

[0041] Fig.25 It is a schematic diagram of the unlocking method of Example 2. DETAILED DESCRIPTION

[0042] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0043] Example 1

[0044] like Figure 1 As shown, the special anti-theft lock core tag includes a nail cap 1 with a nail rod and a clamp. The nail rod protrudes from the center of the nail cap, and the nail rod is plugged into the clamp. The clamp includes a shell composed of a base 11 and a top cover 12, and a coil 15, a steel sleeve 2, and a three-ball seat 3 arranged in the shell. The steel sleeve and the three-ball seat are aligned with the center axis A ( Figure 6 The steel sleeve is a shell with an opening downwardly truncated cone shape, and the three-ball seat can move along the central axis of the clamp, and the three-ball seat is equipped with three steel balls 4. The top cover is provided with a nail rod insertion hole 12.1.

[0045] The shell is also provided with a support member 5, a toggle member 6, an elastic member 7, and an iron insert. The support member and the toggle member are rotatably positioned in the shell. The elastic member is used to apply a thrust to the toggle member so that the toggle member drives the support member to rotate a certain angle. The support member then pushes the three-ball seat upward into the steel sleeve. The steel balls are squeezed by the inner wall of the steel sleeve and move toward the center, tightly clamping the nail rod inserted into the clamp to achieve locking. The iron insert is arranged on the toggle member. When the iron insert is attracted by the magnetic force, it drives the toggle member to overcome the resistance of the elastic member and move in the reverse direction. The toggle member then pushes the support member downward to loosen the three-ball seat and release the nail rod to achieve unlocking. The rotation axes of the support member and the toggle member are parallel to each other, and the rotation axes of the support member and the toggle member are also perpendicular to the central axis A.

[0046] The toggle member comprises a first rotating part 6.1, a locking arm 6.2 and an unlocking arm 6.3. The locking arm and the unlocking arm are arranged on both sides of the first rotating part, and two baffles 6.5 extending towards each other and curved in an arc are arranged between the locking arm and the unlocking arm, and a certain gap is maintained at the ends of the two baffles to form a socket 6.4, and the two baffles are arranged on the side where the angle formed by the locking arm and the unlocking arm is an obtuse angle.

[0047] The iron insert includes a main iron insert 8 and a secondary iron insert 9. The main iron insert is arranged on the locking arm, and the secondary iron insert is arranged on the unlocking arm. The main iron insert and the secondary iron insert are cylindrical, and the locking arm and the unlocking arm are respectively provided with a socket 6.6 for inserting the iron insert. The mass of the main iron insert is greater than that of the secondary iron insert.

[0048] When locked ( Fig. 9 As shown in the figure, the first iron insert is located above the first rotating part, the second iron insert is located below the first rotating part, and the horizontal distance between the first iron insert and the central axis A is greater than the horizontal distance between the first rotating part and the central axis A, and the horizontal distance between the second iron insert and the central axis A is smaller than the horizontal distance between the first rotating part and the central axis A. When the special unlocking device of the present invention is used (the unlocking device can generate magnetic force in horizontal and vertical directions), the toggle piece rotates along the direction of arrow C to achieve unlocking. When a conventional unlocking device is used (the unlocking device only has magnetic force in vertical direction), the toggle piece rotates along the direction of arrow B and cannot unlock.

[0049] The support member comprises a second rotating part 5.1, a support arm 5.2 and a driving arm 5.3. The support arm 5.2 and the driving arm are arranged on both sides of the second rotating part, the support arm extends to the bottom of the three-ball seat, the front end of the support arm is provided with two branches 5.21, the two branches are curved and fit the bottom shape of the three-ball seat, and the driving arm extends into the socket of the toggle member.

[0050] The inner shell is also provided inside the outer shell, and the inner shell is pressed and fixed between the base and the upper cover, and the steel sleeve, three-ball seat, support member, and toggle member are all arranged in the inner shell, and the inner shell, steel sleeve, three-ball seat, support member, and toggle member are assembled as one, which can reduce the difficulty and cost of label production. Fig. 9 As shown, the steel sleeve is fixed to the upper part of the inner shell, the three-ball seat can be vertically slidably positioned in the steel sleeve, and the support member and the toggle member can be rotatably positioned in the inner shell. The inner shell is composed of a rear shell 14 and a front shell 13, and the rear shell is provided with a first support shaft 14.1 and a second support shaft 14.2, the first rotating part is sleeve-shaped and rotatably positioned on the first support shaft, and the second rotating part is also sleeve-shaped and rotatably positioned on the second support shaft. The rear shell and the front shell are also provided with a bayonet 16 for fixing the steel sleeve.

[0051] The elastic member is a spring, which is arranged between the inner shell and the outer shell. The upper end of the spring presses against the upper locking arm of the toggle member, and the lower end of the spring presses against the inner wall of the base. The base is also provided with a positioning column 11.1 for supporting the spring.

[0052] The support member, the toggle member, and the elastic member constitute a set of linkage mechanisms. The figure shows that two sets of linkage mechanisms are arranged symmetrically about the central axis A inside the clamp, wherein the two support members are arranged symmetrically about the central axis A, the two toggle members are arranged symmetrically about the central axis A, and the two elastic members are arranged symmetrically about the central axis A. Each elastic member drives a toggle member and a support member to move independently, and the two support members are locked or unlocked through synchronous vertical movement, and the support arm branches of the two support members are closed left and right and surround the lower part of the three-ball seat, which has a limiting and pushing effect on the three-ball seat.

[0053] Example 2

[0054] The difference between Example 2 and Example 1 is that:

[0055] The shell includes a shell body 21 and an extension 22, an inner shell and a steel sleeve, a three-ball seat, a support, a toggle, and an elastic member are arranged inside the shell body, and a coil is arranged inside the extension. The elastic member is a torsion spring, which applies a thrust to the toggle to achieve locking. A pair of positioning plates 14.3 are arranged on the rear shell, a step shaft 6.7 is arranged on the first rotating part of the toggle, and a slot 6.8 is arranged on the unlocking arm of the toggle, and the torsion spring is sleeved on the step shaft, one torsion arm of the torsion spring extends into the slot, and the other torsion arm supports the positioning plate.

[0056] The working principle of the present invention is:

[0057] like Fig. 9 As shown, when locking, the nail rod of the nail cap passes through the product and is inserted into the clamp, and the elastic member applies a thrust to the toggle member so that the toggle member has a rotation tendency in the direction indicated by the arrow B. Since the toggle member squeezes the support member and has a rotation tendency in the direction indicated by the arrow C, the support arm of the support member moves upward to support the three-ball seat, and the steel balls of the three-ball seat tightly clamp the nail rod to achieve locking; when an external force pulls the nail cap, the nail rod will drive the steel balls of the three-ball seat to move upward, and since the steel sleeve is restricted, the clamping force of the steel balls on the nail rod becomes greater and greater, and the nail rod cannot fall out, thereby achieving protection of the product; if someone takes the product out of a supermarket or shopping mall, the coil of the clamp will trigger an alarm at the exit.

[0058] like Fig.24 and Fig.25 As shown, a special dedicated unlocking device is required for unlocking, and the unlocking device includes a cylindrical magnet 23 and an annular magnet 24. The cylindrical magnet is used to provide a vertical magnetic force F2, and the annular magnet is used to provide a horizontal magnetic force F1. When the clamp is placed on the top of the unlocking device, the main iron inlay is attracted by the horizontal magnetic force to drive the toggle piece to rotate in the direction indicated by the arrow C, and the auxiliary iron inlay is attracted by the vertical magnetic force to drive the toggle piece to rotate in the direction indicated by the arrow B. Since the mass of the main iron inlay is greater than that of the auxiliary iron inlay, the pulling force generated by the main iron inlay is greater, the toggle piece rotates in the direction indicated by the arrow C, and the support piece rotates in the direction indicated by the arrow B. The support arm of the support piece moves downward to release the three-ball seat, and the three-ball seat is also attracted by the vertical magnetic force to move downward to release the nail rod, and the unlocking is completed.

[0059] If a conventional lock opener on the market is used, the lock opener is usually only equipped with a cylindrical magnet and can only generate vertical magnetic force. Therefore, the secondary iron insert is attracted by the magnetic force to drive the toggle part to rotate in the direction indicated by the arrow B, and the support part rotates in the direction indicated by the arrow C. The thrust of the three-ball seat is further increased by the support arm, and the nail rod is increasingly unable to break free from the restraint of the steel ball, effectively protecting the safety of the product.

Claims

1. A special anti-theft lock core label, comprising a nail cap (1) with a nail rod and a clamp that is plugged into and fits with the nail cap; the clamp comprises a housing, a steel sleeve (2) disposed inside the housing, and a three-ball seat (3) with three steel balls (4); the characteristics are: The housing is further provided with a support member (5), a toggle member (6) for driving the support member to move, and an elastic member (7) for applying a thrust to the toggle member so that the support member presses upward against the three-ball seat to clamp the nail rod; the support member and the toggle member are rotatably positioned in the housing; an iron insert is provided on the toggle member, and under horizontal magnetic attraction, the iron insert can drive the toggle member to overcome the resistance of the elastic member and move in the reverse direction so that the support member releases the three-ball seat; The toggle member is provided with a locking arm (6.2), an unlocking arm (6.3), and a socket (6.4) located between the locking arm and the unlocking arm; The iron insert comprises a main iron insert (8) arranged on the locking arm and a secondary iron insert (9) arranged on the unlocking arm; The support member is provided with a support arm (5.2) and a drive arm (5.3), the support arm extends to the bottom of the three-ball seat, and the drive arm extends into the socket of the toggle member; When locking, the nail rod of the nail cap passes through the commodity and is inserted into the clamp. The elastic member applies a thrust to the toggle member, causing the toggle member to have a tendency to rotate. Since the toggle member squeezes the support member and has a tendency to rotate, the support arm of the support member moves upward to support the three-ball seat, and the steel balls of the three-ball seat tightly clamp the nail rod to achieve locking. When an external force pulls the nail cap, the nail rod will drive the steel balls of the three-ball seat to move upward. Since the steel sleeve restricts the clamping force of the steel balls on the nail rod, the nail rod cannot fall out, thereby achieving protection of the commodity. If a conventional unlocking tool is used or an external force is used to knock in an attempt to unlock the door, the support member and the toggle member cannot be driven to rotate. The three-ball seat can always lock the nail rod to avoid accidental unlocking.

2. The special anti-theft lock cylinder label according to claim 1, characterized in that: A baffle (6.5) extending towards each other is provided between the locking arm and the unlocking arm, and a certain gap is maintained between the two baffles to form the socket.

3. The special anti-theft lock cylinder label according to claim 2, characterized in that: The housing is provided with two elastic members, two supporting members and two toggle members symmetrically arranged about the three ball seats, and each elastic member drives a supporting member to move through a toggle member.

4. The special anti-theft lock cylinder label according to claim 3, characterized in that: The elastic member is a spring, and two ends of the spring respectively support the upper locking arm and the shell, or the elastic member is a torsion spring, and two torsion arms of the torsion spring respectively support the toggle member and the shell.

5. The special anti-theft lock cylinder label according to claim 4, characterized in that: An inner shell is also arranged inside the outer shell, a steel sleeve is fixed on the upper part of the inner shell, a three-ball seat can be vertically slidably positioned in the steel sleeve, and a supporting member and a toggle member can be rotatably positioned in the inner shell.

6. The special anti-theft lock cylinder label according to claim 5, characterized in that: The outer shell comprises a base (11) and a top cover (12); the inner shell comprises a rear shell (14) and a front shell (13).

7. The special anti-theft lock cylinder label according to claim 6, characterized in that: The rear shell is provided with a first support shaft (14.1) and a second support shaft (14.2); the toggle member is rotatably positioned on the first support shaft, and the support member is rotatably positioned on the second support shaft.

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