Anti-theft label

Abstract

The utility model relates to the anti-theft field, in particular to an anti-theft label. The anti-theft label comprises a shell, a circuit board and an elastic switch, the circuit board is installed in the shell, and the elastic switch is located on the attaching side, used for being attached to an anti-theft product, of the shell and electrically connected with the circuit board. And the switch is configured to change the on-off state when the attaching side is separated from the anti-theft product so as to input an alarm signal to the circuit board. The anti-theft label achieves the anti-theft purpose by identifying whether the attaching side of the anti-theft label is tightly attached to the anti-theft product or not through the elastic switch, and is wide in application range and easy to operate in the using process.

Description

Technical Field

[0001] The utility model relates to the field of anti-theft, in particular to an anti-theft label. Background Art

[0002] The existing anti-theft tags commonly use a penetrating anti-theft nail structure and a bundling structure. For the penetrating anti-theft nail structure, it will cause damage to the product and is not suitable for valuable products. For the bundling structure, the rear end of the binding rope is connected to the input end of the wire break protection unit, and the front end of the binding rope is connected to a locking nail. When in use, the binding rope is securely bound to the product, and the locking nail is inserted into the power end of the anti-theft tag. Under the action of the spring force, the groove on the locking nail presses the iron bead into the groove. At this time, the power supply in the electronic tag circuit is connected, and the binding rope and the entire control board form a closed loop. This kind of anti-theft tag with a bundling structure achieves the purpose of anti-theft by the way that the locking nail and the anti-theft tag cannot be easily separated and can only be separated using special tools, and the binding rope cannot be cut (an alarm will be sounded if it is cut). For example, the patent with application number 201710064393.6 and patent name is an electronic tag and anti-theft method based on multiple anti-theft. This kind of bundling structure cannot be applied to products with large volume changes, nor to products that are not easy to bundle.

[0003] Furthermore, both of these anti-theft tags have the problem of complicated operations when installed on anti-theft products. Summary of the invention

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an anti-theft label which can achieve the purpose of anti-theft by identifying whether the attached side of the anti-theft label is in close contact with the anti-theft product through an elastic switch. It has a wide range of applications and is easy to operate during use.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: an anti-theft tag, including a shell, a circuit board and an elastic switch, the circuit board is installed in the shell, the elastic switch is located on the attachment side of the shell for attaching to the anti-theft product, and is electrically connected to the circuit board, and is configured to change the on-off state when the attachment side is detached from the anti-theft product to input an alarm signal to the circuit board.

[0006] In order to facilitate the direct fixing and attachment of the shell to the anti-theft product, an adhesive layer is provided on the attachment side.

[0007] In order to conveniently bind the anti-theft tag to the packaging box, the anti-theft tag further includes a binding belt, which is directly or indirectly connected to the shell and is used to bind the shell to the anti-theft product.

[0008] In order to further facilitate connecting the strap to the shell and facilitate switching the anti-theft tag between having a strap and not having a strap, the anti-theft tag also includes a snap-on frame, which is used to snap on the shell. The strap is an elastic strap, and both ends of the elastic strap are connected to the snap-on frame.

[0009] In order to further facilitate the connection between the strap and the card frame, the two ends of the strap are respectively connected with card joints, and the card frame is provided with a card part that cooperates with the card joint, and the end of the strap is connected to the card frame through the cooperation of the card joint and the card part.

[0010] A specific structure of an elastic switch is further provided, the elastic switch comprising a switch mounting portion, a movable member and an elastic conductive sheet, the switch mounting portion being mounted on the circuit board or the housing; the movable member being movably mounted on the switch mounting portion and having an extension portion for extending out of the housing; the elastic conductive sheet abutting between the circuit board and the movable member, the circuit board having two conductive portions; wherein,

[0011] During the process of the attached side being separated from the anti-theft product, the elastic conductive sheet pushes the movable member to move until the extending portion extends out of the housing and resets to electrically contact at most one conductive portion;

[0012] During the process of attaching the anti-theft product to the attaching side, the extending portion rotates toward the housing until it does not exceed the housing and pushes the elastic conductive sheet to deform until it electrically contacts the two conductive portions at the same time.

[0013] To further facilitate the installation of the entire elastic switch, the switch installation portion is a shell, and the movable member is movably installed in the shell.

[0014] Furthermore, one end of the movable member is rotatably mounted on the switch mounting portion, and the extending portion is arranged on the other end of the movable member.

[0015] A specific structure of an elastic conductive sheet with high reliability is further provided, wherein the elastic conductive sheet has a limiting sheet and a contact sheet, wherein the angle between the contact sheet and the limiting sheet is an acute angle, and the movable part has a cavity and an abutment portion, and the ends of the limiting sheet and the contact sheet connected to each other are constrained in the cavity and close to one end of the movable part, and the free end of the limiting sheet abuts against the abutment portion, and the contact sheet is used to make electrical contact with the conductive part.

[0016] Furthermore, the contact sheet has two contact portions arranged in parallel, one of which is longer than the other, and each contact portion is used to electrically contact a conductive portion.

[0017] After adopting the above technical scheme, when the attached side of the anti-theft tag is attached to the anti-theft product, the elastic switch is in one state, and when the attached side of the anti-theft tag is separated from the anti-theft product, the elastic switch switches to another state, which is used as a trigger to input an alarm signal to the circuit board, that is, the purpose of anti-theft is achieved by identifying whether the attached side of the anti-theft tag is in close contact with the anti-theft product through the elastic switch. The utility model has a wide range of applications, and during use, only the attached side of the shell is attached to the anti-theft product, that is, installation on the anti-theft product is achieved, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an anti-theft tag of the utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view of the anti-theft label without being attached to the anti-theft product;

[0020] Figure 3 for Figure 1 A cross-sectional view of the anti-theft label attached to the anti-theft product;

[0021] Figure 4 This is a diagram showing the coordination of the elastic switch and two conductive parts without the switch mounting part of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the movable parts of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the elastic conductive sheet of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of another anti-theft tag of the utility model;

[0025] Figure 8 A circuit diagram of the circuit board of the utility model;

[0026] In the figure, 1. housing; 2. circuit board; 21. conductive part; 3. anti-theft product; 4. switch mounting part; 5. movable part; 51. extension part; 52. cavity; 53. abutment part; 6. elastic conductive sheet; 61. limit sheet; 62. contact sheet; 621. contact part; 7. adhesive layer; 8. binding tape; 81. card connector; 9. card frame; 91. card part. DETAILED DESCRIPTION

[0027] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0028] Embodiment 1

[0029] like Figure 1-7 As shown, an anti-theft tag includes a shell 1, a circuit board 2 and an elastic switch. The circuit board 2 is installed in the shell 1. The elastic switch is located on the attachment side of the shell 1 for attaching to the anti-theft product 3 and is electrically connected to the circuit board 2. It is configured to change the on-off state when the attachment side is detached from the anti-theft product 3 to input an alarm signal to the circuit board 2.

[0030] Specifically, when the attached side of the anti-theft tag is attached to the anti-theft product 3, the elastic switch is in one state, and when the attached side of the anti-theft tag is separated from the anti-theft product 3, the elastic switch switches to another state, which is used as a trigger to input an alarm signal to the circuit board 2, that is, the anti-theft purpose is achieved by identifying whether the attached side of the anti-theft tag is in close contact with the anti-theft product 3 through the elastic switch. The anti-theft tag in this embodiment has a wide range of applications, and during use, only the attached side of the shell 1 is attached to the anti-theft product 3, that is, installation on the anti-theft product 3 is achieved, and the operation is simple.

[0031] Embodiment 2

[0032] Based on the first embodiment, Figure 1-3 As shown, an adhesive layer 7 is provided on the attachment side.

[0033] In addition, a release film may be attached to the surface of the adhesive layer 7 away from the attachment side of the housing 1 , and when the adhesive layer 7 needs to be attached to the anti-theft product 3 , the release film can be torn off.

[0034] The anti-theft label in this embodiment is particularly suitable for anti-theft products 3 without outer packaging, and can be directly pasted on the anti-theft product 3 through the adhesive layer 7. Of course, it is also suitable for some anti-theft products 3 with outer packaging, and the anti-theft label can be pasted on the sealing part of the outer packaging of the anti-theft product 3 through the adhesive layer 7, and the outer packaging can be opened only after the anti-theft label is removed.

[0035] Embodiment 3

[0036] On the basis of Example 1 or Example 2, Figure 7 As shown, the anti-theft tag further includes a strap 8 , which is directly or indirectly connected to the housing 1 and is used to tie the housing 1 to the anti-theft product 3 .

[0037] The anti-theft label in this embodiment is applicable to most anti-theft products with outer packaging. The anti-theft label can be attached to the outer packaging of the anti-theft product by means of a strap 8. Once the thief damages the outer packaging, the strap 8 will become loose, and the attachment side of the housing 1 will not continue to be well attached to the anti-theft product. The elastic switch changes the on-off state to input an alarm signal to the circuit board 2. The anti-theft label in this embodiment is also applicable to some anti-theft products 3 without outer packaging, such as anti-theft products 3 whose covers can be opened directly, such as wine, etc. The cover of the anti-theft product 3 can only be opened by removing the strap 8.

[0038] Embodiment 4

[0039] Based on the third embodiment, Figure 7 As shown, the anti-theft tag also includes a snap-on frame 9, which is used to be snap-on to the housing 1. The strap 8 is an elastic strap, both ends of which are connected to the snap-on frame 9 and indirectly connected to the housing 1 by being connected to the snap-on frame 9.

[0040] Specifically, the strap 8 is an elastic strap, which, on the one hand, makes it easier to attach the anti-theft tag to the anti-theft product 3, and on the other hand, it is not necessary to design a strap 8 of a different specification for each anti-theft product 3, which can improve versatility. More importantly, even if the volume of the anti-theft product 3 itself changes to a certain extent, the elastic strap can ensure that the anti-theft tag is always attached to the anti-theft product 3.

[0041] In addition, the snap-on frame 9 is snap-on to the housing 1, and the anti-theft tag can be directly attached to the anti-theft product or attached to the anti-theft product 3 by binding with a strap 8 as needed, which can easily switch the usage mode of the anti-theft tag and increase the flexibility of use.

[0042] Embodiment 5

[0043] Based on the fourth embodiment, Figure 7 As shown, the two ends of the strap 8 are respectively connected with a clamping joint 81, and the clamping frame 9 is provided with a clamping portion 91 cooperating with the clamping joint 81. The ends of the strap 8 are connected to the clamping frame 9 through the cooperation between the clamping joint 81 and the clamping portion 91.

[0044] Specifically, by providing the clamping portion 91 and the clamping joint 81 , the binding strap 8 can be conveniently connected to the clamping frame 9 , and the binding strap 8 can also be conveniently removed from the clamping frame 9 .

[0045] In the solutions of Embodiments 1 to 5, the elastic switch may have various structures, and a preferred structure is now listed.

[0046] like Figure 2-6 As shown, the elastic switch includes a switch mounting portion 4, a movable member 5 and an elastic conductive sheet 6. The switch mounting portion 4 is mounted on the circuit board 2 or the housing 1; the movable member 5 is movably mounted on the switch mounting portion 4 and has an extension portion 51 for extending out of the housing 1; the elastic conductive sheet 6 abuts between the circuit board 2 and the movable member 5, and the circuit board 2 has two conductive portions 21; wherein,

[0047] When the attached side is separated from the anti-theft product 3, the elastic conductive sheet 6 pushes the movable member 5 to move so that the extending portion 51 extends out of the housing 1 and resets to electrically contact at most one conductive portion 21;

[0048] During the process of attaching the anti-theft product 3 to the attaching side, the extending portion 51 rotates toward the housing 1 until it does not extend beyond the housing 1 and pushes the elastic conductive sheet 6 to deform until it electrically contacts the two conductive portions 21 at the same time.

[0049] Preferably, if Figure 2 , 3 As shown, the switch mounting portion 4 may be a housing, and the movable member 5 is movably mounted in the housing.

[0050] The movable member 5 can be slidably mounted on the switch mounting portion 4, or can be rotatably mounted in the switch mounting portion 4. Figure 2-Figure 5 The figure shows the situation of being rotatably installed in the switch installation part 4 , one end of the movable part 5 is provided with a mounting shaft, the mounting shaft is rotatably installed on the switch installation part 4 , and the extension part 51 is provided at the other end of the movable part 5 .

[0051] Preferably, if Figure 2 , Figure 3 and Figure 6 As shown, the elastic conductive sheet 6 has a limiting sheet 61 and a contact sheet 62, the angle between the contact sheet 62 and the limiting sheet 61 is an acute angle, the movable part 5 has a cavity 52 and an abutment portion 53, the ends of the limiting sheet 61 and the contact sheet 62 connected to each other are constrained in the cavity 52 and close to one end of the movable part 5, the free end of the limiting sheet 61 abuts against the abutment portion 53, and the contact sheet 62 is used to make electrical contact with the conductive part 21.

[0052] like Figure 2 , Figure 3 and Figure 6 As shown, the connection portion between the contact piece 62 and the limiting piece 61 has a smooth transition, which is beneficial to ensuring the service life of the entire elastic conductive piece 6.

[0053] like Figure 2 As shown, when the extension 51 is in a natural state, the inner wall of the cavity 51 is roughly in contact with the end of the stopper 61 and the contact piece 62 connected to each other, which can better constrain the position of the entire elastic conductive piece 6. Figure 3 As shown, the abutment portion 53 always abuts against the free end of the limiting piece 61. When the contact piece 62 does not fit the inner wall of the cavity 51 after elastic deformation, the entire movable part 5 can still restrain the elastic conductive piece 6, effectively preventing the elastic conductive piece 6 from deflecting or detaching.

[0054] It should be noted that in addition to the structure described in detail above, the elastic switch can also use elastic switches sold on the market.

[0055] More preferably, the contact piece 62 has two contact portions 621 arranged in parallel and spaced apart from each other, wherein one contact portion 621 is longer than the other contact portion 621 , and each contact portion 621 is used to electrically contact one conductive portion 21 .

[0056] In the process of attaching the anti-theft switch to the anti-theft product, the long contact portion 621 contacts the circuit board 2 first. After the long contact portion 621 undergoes a certain amount of elastic deformation under the push of the movable portion 5, the short contact portion contacts the circuit board 2. That is to say, in the process of elastic deformation of the contact piece 62, only the long contact portion 621 is deformed in most of the process. Compared with the situation where the two contact portions 621 are of equal length and thus always undergo elastic deformation at the same time, and the situation where the complete contact piece 62 (the contact piece 62 is not divided into two contact portions 621) undergoes elastic deformation, the rotational resistance applied by the elastic conductive sheet 6 to the movable part 5 in the reverse direction is much smaller, so that the protruding portion 51 can be easily retracted into the housing 1, and the protruding portion 51 can also be prevented from causing damage to the anti-theft product.

[0057] For the anti-theft switch, the circuit of the circuit board 2 is relatively mature. For example, the Chinese patent application number 201710064393.6 involves the circuit of the circuit board 2 of the anti-theft switch.

[0058] In the technical solutions of Embodiments 1 to 5, the attached Figure 8 In the circuit shown, the circuit board 2 has a control unit IC1, a push switch K1, an elastic switch K2, a power supply DC1, a resonant circuit formed by a capacitor C3 and an inductor L2 in parallel, an LED lamp D1, a speaker BZ1 and a speaker switch unit. The power supply DC1 is connected to the control unit IC1 for power supply, the push switch K1 and the elastic switch K2 are respectively connected to the control unit IC1, the LED lamp D1 is connected to the control unit IC1, and the speaker BZ1 is connected to the control unit IC1 through the speaker switch unit.

[0059] After the anti-theft tag is installed on the anti-theft product 3, press the button switch K1, the anti-theft tag is turned on, and it starts working. When the anti-theft tag is turned on and the alarm is not released by the decoder or remote control, if the anti-theft tag is separated from the anti-theft product 3, the elastic switch K2 will be disconnected, and the control unit IC1 uses the disconnection of the elastic switch K2 as a trigger signal to control the speaker BZ1 and / or directly control the LED light D1 to alarm through the speaker switch unit. Therefore, when the anti-theft tag is turned on, the alarm needs to be released by the decoder or remote control before removing the anti-theft tag.

[0060] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An anti-theft label, characterized in that: The invention comprises a housing (1), a circuit board (2) and an elastic switch, wherein the circuit board (2) is installed in the housing (1), the elastic switch is located on an attachment side of the housing (1) for attaching to an anti-theft product (3), and is electrically connected to the circuit board (2), and is configured to change an on-off state when the attachment side is detached from the anti-theft product (3) so as to input an alarm signal to the circuit board (2).

2. The anti-theft tag according to claim 1, characterized in that: The attachment side is provided with an adhesive layer (7).

3. The anti-theft tag according to claim 1, characterized in that: It also comprises a binding belt (8), which is directly or indirectly connected to the shell (1) and is used to bind the shell (1) to the anti-theft product (3).

4. The anti-theft tag according to claim 3, characterized in that: It also comprises a snap-on frame (9), the snap-on frame (9) being used for snapping onto the housing (1); the binding strap (8) is an elastic strap, and both ends of the elastic strap are connected to the snap-on frame (9).

5. The anti-theft tag according to claim 4, characterized in that: The two ends of the binding strap (8) are respectively connected to a clamping joint (81); the clamping frame (9) is provided with a clamping portion (91) that cooperates with the clamping joint (81); and the ends of the binding strap (8) are connected to the clamping frame (9) through the cooperation between the clamping joint (81) and the clamping portion (91).

6. The anti-theft tag according to claim 1, characterized in that: The elastic switch comprises a switch mounting portion (4), a movable member (5) and an elastic conductive sheet (6); the switch mounting portion (4) is mounted on the circuit board (2) or the housing (1); the movable member (5) is movably mounted on the switch mounting portion (4) and has an extension portion (51) for extending out of the housing (1); the elastic conductive sheet (6) abuts between the circuit board (2) and the movable member (5); the circuit board (2) has two conductive portions (21); wherein: During the process of the attached side being detached from the anti-theft product (3), the elastic conductive sheet (6) pushes the movable member (5) to move until the extending portion (51) extends out of the housing (1) and is reset to electrically contact at most one conductive portion (21); During the process of attaching the anti-theft product (3) to the attachment side, the extension portion (51) rotates toward the housing (1) until it does not extend beyond the housing (1) and pushes the elastic conductive sheet (6) to deform until it electrically contacts the two conductive portions (21) at the same time.

7. The anti-theft tag according to claim 6, characterized in that: The switch mounting portion (4) is a housing, and the movable member (5) is movably mounted in the housing.

8. The anti-theft tag according to claim 6, characterized in that: One end of the movable part (5) is rotatably mounted on the switch mounting part (4), and the extending part (51) is arranged on the other end of the movable part (5).

9. The anti-theft tag according to claim 8, characterized in that: The elastic conductive sheet (6) comprises a limiting sheet (61) and a contact sheet (62), the angle between the contact sheet (62) and the limiting sheet (61) being an acute angle, the movable part (5) comprising a cavity (52) and an abutting portion (53), the ends of the limiting sheet (61) and the contact sheet (62) being connected to each other are constrained in the cavity (52) and close to one end of the movable part (5), the free end of the limiting sheet (61) abuts against the abutting portion (53), and the contact sheet (62) is used for electrically contacting the conductive part (21).

10. The anti-theft tag according to claim 9, characterized in that: The contact piece (62) has two contact portions (621) arranged in parallel, one of the contact portions (621) being longer than the other contact portion (621), and each contact portion (621) being used for electrically contacting a conductive portion (21).

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