Anti-theft tag

Abstract

An anti-theft tag, comprising a housing (11) and a connecting cord (14). A circuit board (12) and an alarm (13) are disposed inside the housing (11). A first end of the connecting cord (14) extends into the housing (11), and a second end of the connecting cord (14) is located outside the housing (11). A first wire (141) and a second wire (142) are disposed inside the connecting cord (14) along a length direction thereof. The connecting cord(14) can be bent to form a hanging loop (143), and the anti-theft label can be hung on a product via the hanging loop (143).

Description

Anti-theft label

[0001] The present application claims priority to Chinese Patent Application No. 202422399952.7, filed on September 30, 2024, and Chinese Patent Application No. 202520892614.9, filed on May 8, 2025, the contents of all of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of commodity anti-theft, for example, to an anti-theft label. BACKGROUND

[0003] In related art, in places such as shopping malls and supermarkets, anti-theft labels are usually provided on goods to be sold. The anti-theft labels are usually hung on the goods by a steel wire. When someone takes the goods with the anti-theft label out, the alarm system arranged at the entrance can sense the wireless signal emitted by the anti-theft label and alarm to prompt the staff. However, when a criminal directly cuts the steel wire by force without normal unlocking, the traditional anti-theft label cannot alarm and prompt the staff in the first time, thereby causing the risk of goods being stolen. SUMMARY

[0004] The present application provides an anti-theft label to solve the problem that when the anti-theft label is directly cut by force without normal unlocking, the traditional anti-theft label cannot alarm and prompt the staff in the first time, thereby causing the risk of goods being stolen.

[0005] The present application provides an anti-theft label, comprising:

[0006] A housing, an internal circuit board and an alarm are arranged in the housing, and the alarm is electrically connected to the internal circuit board;

[0007] A connecting rope, a first end of the connecting rope extends into the housing, a second end of the connecting rope is located outside the housing, a first wire and a second wire are arranged in the connecting rope along the length direction of the connecting rope, first ends of the first wire and the second wire extend out from one end of the connecting rope located inside the housing, and are electrically connected to the internal circuit board, second ends of the first wire and the second wire are electrically connected inside the connecting rope, and the connection is adjacent to the second end of the connecting rope;

[0008] A locking structure, the second end of the connecting rope can be connected to the locking structure and form a closed hanging ring, and the locking structure is configured to lock and keep the hanging ring closed.

[0009] In some embodiments, the locking structure comprises:

[0010] a plug pin arranged at the second end of the connecting rope;

[0011] a locking member provided with a plug hole and a locking hole, the plug pin being capable of being inserted into and locked in the locking hole after passing through the plug hole.

[0012] In some embodiments, the locking structure comprises:

[0013] a plug pin arranged at the second end of the connecting rope;

[0014] a locking member provided with a locking hole;

[0015] a plug hole arranged on the shell, the plug pin being capable of being inserted into and locked in the locking hole after passing through the plug hole.

[0016] In some embodiments, the locking structure comprises:

[0017] a plug pin arranged at the second end of the connecting rope;

[0018] a plug hole and a locking hole, both arranged on the shell, the plug pin being capable of being inserted into and locked in the locking hole after passing through the plug hole.

[0019] In some embodiments, the anti-theft tag further comprises an inductor mounted inside the shell and configured to emit an inductive signal, the inductor being electrically connected to the circuit board.

[0020] In some embodiments, the alarm comprises a buzzer, the buzzer being electrically connected to the circuit board.

[0021] In some embodiments, the shell is provided with a first through hole near the buzzer, the first through hole penetrating the shell and being in communication with the outside.

[0022] In some embodiments, the alarm comprises a light-emitting member, the light-emitting member being electrically connected to the circuit board, the shell being provided with a second through hole, the light-emitting member being exposed outside the shell through the second through hole.

[0023] In some embodiments, the shell is internally formed with a receiving cavity, the circuit board and the alarm being arranged in the receiving cavity, the shell being provided with a through hole, the connecting rope extending into the shell through the through hole.

[0024] In some embodiments, the anti-theft tag further comprises a locking groove and a locking block, the locking groove being formed inside the shell and being in communication between the through hole and the receiving cavity, the locking groove having a width greater than that of the through hole, the locking block being arranged at the first end of the connecting rope, the locking block being arranged in the locking groove.

[0025] In some embodiments, the shell comprises a first shell and a second shell, the first shell is detachably buckled to the second shell, and the first shell and the second shell form the accommodating cavity.

[0026] In some embodiments, a stopper is arranged on the connecting rope near the outside of the shell, and the width of the stopper is greater than the width of the through hole.

[0027] In some embodiments, the circuit board is provided with a first connecting terminal, a second connecting terminal and a third connecting terminal, and the alarm, the first wire and the second wire are electrically connected to the circuit board through the first connecting terminal, the second connecting terminal and the third connecting terminal respectively.

[0028] In some embodiments, the anti-theft label further comprises a battery, which is mounted in the shell and electrically connected to the circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 is a structural schematic diagram of an alarm device in Embodiment One of the present application;

[0030] Fig. 2 is a longitudinal sectional view of the alarm device in Embodiment One of the present application along the through hole;

[0031] Fig. 3 is a longitudinal sectional view of the alarm device in Embodiment One of the present application along the through hole, except for the connecting rope;

[0032] Fig. 4 is a structural schematic diagram of the alarm device in Embodiment One of the present application, except for the shell;

[0033] Fig. 5 is a structural schematic diagram of a locking member in Embodiment One of the present application;

[0034] Fig. 6 is a structural schematic diagram of another locking member in Embodiment One of the present application;

[0035] Fig. 7 is a structural schematic diagram of an anti-theft label in Embodiment One of the present application;

[0036] Fig. 8 is a structural schematic diagram of an alarm device in Embodiment Two of the present application;

[0037] Fig. 9 is an exploded view of the alarm device in Embodiment Two of the present application;

[0038] Fig. 10 is a structural schematic diagram of an anti-theft label in Embodiment Two of the present application;

[0039] Fig. 11 is a structural schematic diagram of an alarm device in Embodiment Three of the present application;

[0040] Fig. 12 is a structural schematic diagram of the alarm device in Embodiment Three of the present application, except for the connecting rope;

[0041] Fig. 13 is a structural schematic view of the locking member in the third embodiment of the present application;

[0042] Fig. 14 is a structural schematic view of the anti-theft label in the third embodiment of the present application;

[0043] Fig. 15 is a structural schematic view of the anti-theft label in the fourth embodiment of the present application;

[0044] Fig. 16 is another structural schematic view of the anti-theft label in the fourth embodiment of the present application.

[0045] In the figures: 1, alarm device; 11, outer shell; 111, first through hole; 112, second through hole; 113, accommodating cavity; 114, through hole; 115, first shell; 116, second shell; 12, circuit board; 121, first connecting terminal; 122, second connecting terminal; 123, third connecting terminal; 13, alarm; 131, buzzer; 132, light emitting member; 14, connecting rope; 141, first wire; 142, second wire; 143, hanging ring; 144, stop block; 15, inductor; 3, battery; 41, locking groove; 42, locking block; 5, pin; 6, locking member; 7, jack; 8, lock hole. DETAILED DESCRIPTION

[0046] The present application will be described in detail below with reference to the accompanying drawings and embodiments. The embodiments described herein are used to explain the present application. For the purpose of description, only the parts related to the present application are shown in the accompanying drawings.

[0047] In the description of the present application, unless specifically defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the meaning of the above terms in the present application can be understood as appropriate.

[0048] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first feature and the second feature are in direct contact, or that the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or indicates that the horizontal height of the first feature is less than that of the second feature.

[0049] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. In addition, the terms "first" and "second" are used to distinguish in description and have no special meaning.

[0050] Embodiment one

[0051] Referring to FIGS. 1-7, the present embodiment provides an anti-theft tag, which includes a shell 11, an internal circuit board 12 and an alarm 13 are arranged inside the shell 11, and the alarm 13 is electrically connected with the circuit board 12.

[0052] In addition to the shell 11, the circuit board 12 and the alarm 13, the anti-theft tag further includes a connecting rope 14, the first end of the connecting rope 14 extends into the shell 11, and the second end of the connecting rope 14 is located outside the shell 11, and the first and second conductive wires 141 and 142 are arranged inside the connecting rope 14 along the length direction thereof, the first ends of the first and second conductive wires 141 and 142 extend out from the end of the connecting rope 14 located inside the shell 11 and are both electrically connected with the circuit board 12, the second ends of the first and second conductive wires 141 and 142 are electrically connected inside the connecting rope 14, and the connection is adjacent to the end of the connecting rope 14 located outside the shell 11, that is, the second ends of the first and second conductive wires 141 and 142 are inside the connecting rope 14 and adjacent to the end of the connecting rope 14 located outside the shell 11, and the second ends of the first and second conductive wires 141 and 142 are connected in series to electrically connect the second ends of the first and second conductive wires 141 and 142.

[0053] The anti-theft tag further includes a locking structure, the end of the connecting rope 14 located outside the shell 11 can be connected with the locking structure and form a closed hanging ring 143, whereby the connecting rope 14 can be bent to form the hanging ring 143, and the anti-theft tag can be hung on the goods through the hanging ring 143, and the locking structure is configured to lock and keep the hanging ring 143 closed, in other words, the locking structure is configured to lock and keep the hanging ring 143 closed, so that under normal circumstances, the anti-theft tag can only be removed from the goods by unlocking.

[0054] In the present embodiment, the first wire 141 and the second wire 142 arranged inside the connecting rope 14 can form a closed loop with the circuit board 12, and since the connecting position of the first wire 141 and the second wire 142 is adjacent to the end of the connecting rope 14 outside the shell 11, the first wire 141 and the second wire 142 can run through each part of the hanger 143. When the anti-theft tag is directly cut off the connecting rope 14 by force without being unlocked normally, the first wire 141 and the second wire 142 are cut off, thus breaking the closed loop, and the circuit board 12 can control the alarm 13 to send an alarm signal to prompt the staff, so as to avoid the theft of the goods.

[0055] For example, based on the above description, the shell 11 is internally formed with a receiving cavity 113, the circuit board 12 and the alarm 13 are arranged in the receiving cavity 113, the shell 11 is provided with a through hole 114, the connecting rope 14 extends into the shell 11 through the through hole 114, and the first wire 141 and the second wire 142 are inserted into the receiving cavity 113. The staff can first bend the connecting rope 14 and pass through the part on the goods for hanging the anti-theft tag, so as to hang the anti-theft tag on the goods. When the consumer purchases the goods, the staff can unlock the locking structure by control, thus unlocking the hanger 143, and then the anti-theft tag can be removed from the goods.

[0056] For example, in the present embodiment, the locking structure includes the pin 5 and the locking piece 6, wherein the pin 5 is arranged at the end of the connecting rope 14 outside the shell 11, that is, in the present embodiment, the end of the first wire 141 away from the pin 5 extends out of the connecting rope 14 through the end of the connecting rope 14 away from the pin 5, the end of the second wire 142 away from the pin 5 extends out of the connecting rope 14 through the end of the connecting rope 14 away from the pin 5, the end of the first wire 141 close to the pin 5 and the end of the second wire 142 close to the pin 5 are electrically connected inside the connecting rope 14, and the connecting position of the first wire 141 and the second wire 142 is arranged close to the pin 5. For example, the connecting position of the first wire 141 and the second wire 142 is arranged immediately adjacent to the pin 5, the end of the connecting rope 14 away from the pin 5 is inserted into the shell 11 through the through hole 114, and the end of the first wire 141 extending out of the connecting rope 14 and the end of the second wire 142 extending out of the connecting rope 14 are both electrically connected with the circuit board 12. The locking piece 6 is provided with the insertion hole 7 and the locking hole 8, and the pin 5 can pass through the insertion hole 7 and be inserted and locked in the locking hole 8.

[0057] In the embodiment, the shell 11, the circuit board 12, the alarm 13 and the connecting rope 14 jointly constitute the alarm device 1. The alarm device 1 and the locking member 6 are two independent components, and the alarm device 1 can be connected with the locking member 6 through the connecting rope 14. Since the two ends of the connecting rope 14 are connected with the shell 11 and the locking member 6 respectively, and the connecting rope 14 passes through the insertion hole 7 on the locking member 6, the connecting rope 14 can be bent to form a hanging ring 143, and the anti-theft tag can be hung on the commodity through the hanging ring 143.

[0058] For example, the staff can first pass the connecting rope 14 through the position of the commodity for hanging the anti-theft tag, the insertion hole 7 on the locking member 6, and insert the insertion pin 5 of the connecting rope 14 into the locking hole 8 and lock it, so as to form the hanging ring 143 between the insertion hole 7 and the locking hole 8 on the locking member 6, and the hanging ring 143 is hung on the commodity, so as to hang the anti-theft tag on the commodity. When the consumer buys the commodity, the staff can unlock the insertion pin 5 by controlling the locking member 6, so as to take down the anti-theft tag from the commodity.

[0059] In some embodiments, the locking member 6 can be provided with a wireless unlocking structure or a password unlocking structure or a magnet unlocking structure, so as to realize the locking or unlocking of the insertion pin 5. It is worth noting that the structure and working principle of all the unlocking structures mentioned above can refer to the related technology.

[0060] In the embodiment, the connecting rope 14 is a single rope, that is, in the embodiment, the first lead wire 141 and the second lead wire 142 are arranged in the same rope. In other optional embodiments, the connecting rope 14 can also be composed of two ropes, the first lead wire 141 and the second lead wire 142 are arranged in the two ropes respectively, the first ends of the two ropes are inserted into the shell 11, the second ends of the two ropes are located outside the shell 11, and the second ends of the two ropes are connected in series, so that the first lead wire 141 and the second lead wire 142 arranged in the two ropes can be connected in series and electrically connected, and the insertion pin 5 is arranged at the connection position of the two ropes.

[0061] In some embodiments, the rope used to form the connecting rope 14 is a steel wire rope.

[0062] In the embodiment, the alarm 13 includes a buzzer 131, and the buzzer 131 is electrically connected with the circuit board 12. When the anti-theft tag is directly cut off the connecting rope 14 by force without normal unlocking, the first lead wire 141 and the second lead wire 142 are cut off, so that the closed loop is disconnected, and the circuit board 12 can control the buzzer 131 to emit a buzzing sound, so as to warn the staff.

[0063] In some embodiments, the first through hole 111 is arranged at a position close to the buzzer 131 on the shell 11, the first through hole 111 is in communication with the accommodating cavity 113, and the first through hole 111 penetrates the shell 11 and is in communication with the outside, thereby facilitating the transmission of the buzzing sound emitted by the buzzer 131 to the outside, and thus more reliably warning the staff.

[0064] In the present embodiment, the circuit board 12 is provided with a first connecting terminal 121, a second connecting terminal 122 and a third connecting terminal 123. The alarm 13 is electrically connected to the circuit board 12 through the first connecting terminal 121. Exemplarily, the first connecting terminal 121 is used to electrically connect the buzzer 131, the first lead wire 141 is electrically connected to the circuit board 12 through the second connecting terminal 122, and the second lead wire 142 is electrically connected to the circuit board 12 through the third connecting terminal 123, so that the circuit board 12 can sensitively sense that at least one of the first lead wire 141 and the second lead wire 142 is cut off, and sensitively control the buzzer 131 to show warning.

[0065] In some embodiments, the anti-theft label further comprises a battery 3, the battery 3 is also installed in the accommodating cavity 113 and is electrically connected to the circuit board 12, thereby supplying power to the circuit board 12.

[0066] In the present embodiment, the shell 11 is a shell structure integrally formed on the periphery of components such as the circuit board 12 and the alarm 13, and the shell 11 wraps the end of the connecting rope 14 close to the circuit board 12. In other alternative embodiments, the shell 11 can also be formed by detachably assembling at least two shells.

[0067] In some embodiments, the anti-theft label further comprises a locking groove 41 and a locking block 42, the locking groove 41 is arranged inside the shell 11 and is in communication between the through hole 114 and the accommodating cavity 113, the width of the locking groove 41 is greater than the width of the through hole 114, the locking block 42 is arranged at the first end of the connecting rope 14, the width of the locking block 42 is greater than the width of the connecting rope 14, the locking block 42 is accommodated in the locking groove 41, and the shell 11 can lock the locking block 42 through the locking groove 41, thereby avoiding the disconnection of the connecting rope 14 from the shell 11, and thus avoiding the false judgment of the circuit board 12 and the control of the buzzer 131 to show warning.

[0068] In some embodiments, as shown in FIG. 5 and FIG. 6, FIG. 5 shows a schematic diagram of a structure of a locking piece, and FIG. 6 shows a schematic diagram of a structure of another locking piece. The locking piece 6 shown in FIG. 5 and FIG. 6 is provided with a socket 7 and a lock hole 8 for insertion and locking of the pin 5, forming a closed anti-theft loop. It should be noted that the locking piece 6 in the present embodiment can adopt any structure design capable of realizing the function of insertion and locking of the pin 5 in the lock hole 8 after passing through the socket 7. In addition, in actual application, the outer dimensions, material composition, surface treatment process and operation mode of the locking piece 6 can be adaptively designed according to the use scenario, product demand and cost consideration, etc.

[0069] Embodiment Two

[0070] As shown in FIG. 8 to FIG. 10, compared with Embodiment One, the difference of the present embodiment lies in that the anti-theft tag further comprises an inductor 15. In the present embodiment, the inductor 15 is installed inside the shell 11 and is capable of emitting an induction signal. Exemplarily, the inductor 15 is also installed in the accommodating cavity 113, and the inductor 15 is electrically connected with the circuit board 12. When someone takes the goods with the anti-theft tag out, the alarm system arranged at the door can sense the induction signal emitted by the inductor 15 and alarm, thereby reminding the staff.

[0071] Since the inductor 15 in the present embodiment is directly arranged on the alarm device 1 and is electrically connected with the circuit board 12, instead of being arranged on the locking piece 6, the present embodiment can save the additional arrangement of other circuit board 12 structures in the locking piece 6, thereby saving the manufacturing cost of the anti-theft tag.

[0072] In other optional embodiments, the inductor 15 can also be arranged in the locking piece 6, and correspondingly, the locking piece 6 is arranged with a circuit board 12 structure for electrical connection with the inductor 15.

[0073] In the present embodiment, the inductor 15 is capable of emitting a signal of a preset frequency. Exemplarily, in the present embodiment, the inductor 15 is capable of emitting an induction signal of 8.2 megahertz (MHz). When someone takes the goods with the anti-theft tag out, the alarm system arranged at the door can sense the induction signal emitted by the inductor 15 and alarm.

[0074] In other optional embodiments, the inductor 15 can also be arranged to emit an induction signal of other frequencies.

[0075] In the embodiment, the alarm 13 further comprises a light-emitting piece 132, which is also mounted in the accommodating cavity 113 and electrically connected with the circuit board 12. The shell 11 is provided with a second through hole 112, and the light-emitting piece 132 is exposed to the shell 11 through the second through hole 112. When the anti-theft tag is directly violently cut off the connecting rope 14 without normal unlocking, the first wire 141 and the second wire 142 are cut off, so that the closed loop is disconnected, and the circuit board 12 can control the light-emitting piece 132 to emit an alarm light. In the embodiment, the alarm is jointly warned by the combination of the buzzer 131 and the light-emitting piece 132, so that the staff can be more reliably warned.

[0076] In other optional embodiments, the alarm 13 can only comprise the buzzer 131 or the light-emitting piece 132.

[0077] For example, in the embodiment, the light-emitting piece 132 slowly flashes at a preset frequency during normal operation. When the anti-theft tag is directly violently cut off the connecting rope 14 without normal unlocking, the circuit board 12 controls the light-emitting piece 132 to adjust to a flash mode, at which time the light-emitting piece 132 flashes rapidly, thereby warning the staff.

[0078] In the embodiment, the circuit board 12 is provided with a first connecting terminal 121, a second connecting terminal 122 and a third connecting terminal 123, and the alarm 13 is electrically connected with the circuit board 12 through the first connecting terminal 121. For example, the circuit board 12 is provided with two first connecting terminals 121, and the two first connecting terminals 121 are respectively used for electrically connecting the buzzer 131 and the light-emitting piece 132. The first wire 141 is electrically connected with the circuit board 12 through the second connecting terminal 122, and the second wire 142 is electrically connected with the circuit board 12 through the third connecting terminal 123, so that the circuit board 12 can sensitively sense that at least one of the first wire 141 and the second wire 142 is cut off, and sensitively control the buzzer 131 and the light-emitting piece 132 to warn.

[0079] In the embodiment, the shell 11 comprises a first shell 115 and a second shell 116, and the first shell 115 is detachably buckled to the second shell 116. The first shell 115 and the second shell 116 are configured to form the accommodating cavity 113, that is, the shell 11 is a detachable structure, so that the staff can replace the battery 3, thereby enabling the anti-theft tag to be repeatedly used.

[0080] In some embodiments, the first shell 115 can be detachably buckled to the second shell 116 by snap connection or bolt connection.

[0081] In the embodiment, a stopper 144 is arranged on the connecting rope 14 near the outside of the shell 11, and the width of the stopper 144 is greater than the width of the through hole 114, so as to avoid the connecting rope 14 from being excessively inserted into the shell 11.

[0082] Embodiment three

[0083] As shown in FIGS. 11-14, and in conjunction with FIG. 11, the difference between the embodiment and the first embodiment is that the locking structure comprises the pin 5, the locking piece 6 and the insertion hole 7, the pin 5 is arranged on the end of the connecting rope 14 outside the shell 11, the locking piece 6 is provided with the locking hole 8, and the insertion hole 7 is arranged on the shell 11, and the pin 5 can be inserted into and locked in the locking hole 8 after passing through the insertion hole 7, that is, in the embodiment, the insertion hole 7 is arranged on the shell 11, and only the locking hole 8 is arranged on the locking piece 6, and the pin 5 can be inserted into and locked in the locking hole 8 after passing through the insertion hole 7.

[0084] For example, the staff can first pass the connecting rope 14 through the position of the goods for hanging the anti-theft label, the insertion hole 7 on the alarm device 1, and insert and lock the pin 5 of the connecting rope 14 into the locking hole 8, so as to bend the connecting rope 14, form a hanging ring 143 between the position of the connecting rope 14 inserted into the shell 11 and the insertion hole 7, and hang the anti-theft label on the goods through the hanging ring 143. When the consumer purchases the goods, the staff can unlock the pin 5 by controlling the locking piece 6, so as to take down the anti-theft label from the goods.

[0085] It should be noted that the locking piece 6 in the embodiment can adopt any structure design capable of realizing the function of inserting and locking the pin 5 into the locking hole 8 after passing through the insertion hole 7 on the shell 11. In addition, in actual application, the size, material composition, surface treatment process and operation mode of the locking piece 6 can be adaptively designed according to the use scene, product demand and cost consideration, etc.

[0086] Embodiment four

[0087] As shown in FIGS. 15 and 16, the difference between the embodiment and the first embodiment is that the locking structure comprises the pin 5, the insertion hole 7 and the locking hole 8, the pin 5 is arranged on the end of the connecting rope 14 outside the shell 11, the insertion hole 7 and the locking hole 8 are arranged on the shell 11, and the pin 5 can be inserted into and locked in the locking hole 8 after passing through the insertion hole 7, that is, in the embodiment, the locking structure only comprises the pin 5, the insertion hole 7 and the locking hole 8, and the anti-theft label only comprises one component of the alarm device 1.

[0088] In the present embodiment, the staff can first pass the connecting rope 14 through the part of the commodity for hanging the anti-theft tag, and pass the plug pin 5 of the connecting rope 14 through the insertion hole 7 and insert and lock into the lock hole 8, so as to bend the connecting rope 14, form a hanging ring 143 between the part of the connecting rope 14 extending into the shell 11 and the insertion hole 7, and hang the anti-theft tag on the commodity through the hanging ring 143. When the consumer purchases the commodity, the staff can unlock the plug pin 5 by controlling the locking structure, so as to take off the anti-theft tag from the commodity.

Claims

1. A theft-proof tag, comprising: a housing (11) internally provided with a circuit board (12) and an alarm (13) electrically connected with the circuit board (12) ; a connecting rope (14), a first end of the connecting rope (14) extending into the housing (11), a second end of the connecting rope (14) being located outside the housing (11), the connecting rope (14) internally provided with a first wire (141) and a second wire (142) along a length direction thereof, first ends of the first wire (141) and the second wire (142) extending out of the housing (11) via the end of the connecting rope (14) located inside the housing (11) and electrically connected with the circuit board (12), second ends of the first wire (141) and the second wire (142) being electrically connected inside the connecting rope (14) and the connection being adjacent to the second end of the connecting rope (14) ; a locking structure, the second end of the connecting rope (14) being connectable with the locking structure and forming a closed hanging ring (143), the locking structure being configured to lock and keep the hanging ring (143) closed.

2. The anti-theft tag according to claim 1, wherein the locking structure comprising: a plug pin (5) provided at the second end of the connecting rope (14) ; a locking piece (6) provided with a plug hole (7) and a lock hole (8), the plug pin (5) being capable of penetrating through the plug hole (7) and then being inserted and locked in the lock hole (8).

3. The anti-theft tag according to claim 1, wherein the locking structure comprising: a plug pin (5) provided at the second end of the connecting rope (14) ; a locking piece (6) provided with a lock hole (8) ; a plug hole (7) provided on the housing (11), the plug pin (5) being capable of penetrating through the plug hole (7) and then being inserted and locked in the lock hole (8).

4. The anti-theft tag according to claim 1, wherein the locking structure comprising: a plug pin (5) provided at the second end of the connecting rope (14) ; a plug hole (7) and a lock hole (8), both provided on the housing (11), the plug pin (5) being capable of penetrating through the plug hole (7) and then being inserted and locked in the lock hole (8). 5.The theft-proof tag according to any one of claims 1-4, further comprising an inductor (15) mounted inside the housing (11) and configured to emit an inductive signal, the inductor (15) being electrically connected with the circuit board (12).

6. The anti-theft tag according to any one of claims 1 to 4, wherein, the alarm (13) comprising a buzzer (131) electrically connected with the circuit board (12).

7. The anti-theft tag according to claim 6, wherein the housing (11) being provided with a first through hole (111) adjacent to the buzzer (131), the first through hole (111) penetrating through the housing (11) and being in communication with the outside.

8. The anti-theft tag according to any one of claims 1 to 4, wherein, the alarm (13) comprising a light-emitting piece (132) electrically connected with the circuit board (12), the housing (11) being provided with a second through hole (112), the light-emitting piece (132) being exposed outside the housing (11) through the second through hole (112).

9. The anti-theft tag according to any one of claims 1 to 4, wherein, The shell (11) is internally formed with a receiving cavity (113), the circuit board (12) and the alarm (13) are arranged in the receiving cavity (113), the shell (11) is provided with a through hole (114), and the connecting rope (14) extends into the shell (11) through the through hole (114).

10. The anti-theft tag according to claim 9, further comprising a locking groove (41) and a locking block (42), the locking groove (41) is arranged in the shell (11) and is communicated between the through hole (114) and the receiving cavity (113), the width of the locking groove (41) is greater than the width of the through hole (114), and the locking block (42) is arranged at the first end of the connecting rope (14) and is arranged in the locking groove (41).

11. The anti-theft tag according to claim 9, wherein, The shell (11) comprises a first shell (115) and a second shell (116), the first shell (115) is detachably buckled to the second shell (116), and the first shell (115) and the second shell (116) are configured to form the receiving cavity (113).

12. The anti-theft tag according to claim 9, wherein, The connecting rope (14) is provided with a stop block (144) near the outside of the shell (11), and the width of the stop block (144) is greater than the width of the through hole (114).

13. The anti-theft tag according to claim 1, wherein, The circuit board (12) is provided with a first connecting terminal (121), a second connecting terminal (122) and a third connecting terminal (123), and the alarm (13), the first wire (141) and the second wire (142) are electrically connected with the circuit board (12) through the first connecting terminal (121), the second connecting terminal (122) and the third connecting terminal (123) respectively.

14. The anti-theft tag according to claim 1, further comprising a battery (3), the battery (3) is arranged in the shell (11) and is electrically connected with the circuit board (12).

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