Anti-exchange device

Abstract

The invention provides an anti-exchange device, and aims to solve the problems of complex structure and poor triggering reliability of an anti-exchange device in the prior art. The technical scheme provided by the invention comprises a first main body and a second main body which are respectively arranged on two sides of a commodity. The first main body comprises a containing cavity, and a fixed first magnetic piece and a movable second magnetic piece are arranged in the containing cavity. The second main body comprises a third magnetic part. In the original state, the second magnetic part is located at the bottom of the containing cavity and attracts commodities with the third magnetic part at intervals. And when the first main body is separated from the second main body, the second magnetic piece moves from the cavity bottom to the cavity top and is adsorbed by the first magnetic piece. By adopting the magnetic system formed by the first magnetic piece, the second magnetic piece and the third magnetic piece, the triggering process only needs to depend on magnetic force change, the response is quick, the mechanical jamming risk is avoided, and the triggering reliability is remarkably improved; meanwhile, due to the simplified structure, the number of parts is reduced, and the manufacturing cost and the assembling difficulty are reduced.

Description

Technical Field

[0001] This application relates to the field of commodity packaging technology, and more specifically, to an anti-tampering device for preventing commodities from being swapped or returned after being opened and used. Background Technology

[0002] With the rapid development of e-commerce, online shopping has become an important channel for consumers to purchase clothing, bags, luxury goods, and other products. While protecting consumer rights, the seven-day no-reason return policy has also given rise to malicious returns or product exchanges, causing serious economic losses to merchants.

[0003] To address these issues, various anti-tampering technologies have emerged in the market. Among them, Chinese patent application CN121148234A utilizes a multi-magnet linkage and pigment tube development method to verify whether goods have been opened or tampered with. This device uses magnet 1 to fix magnet 2, which, together with magnet 3 and a magnetic rod, triggers the pigment tube to rupture and develop a mark when removed, facilitating quick verification by the merchant.

[0004] However, in actual production and application, this technical solution has the following shortcomings: The device has a complex internal structure, containing multiple components and requiring cumbersome assembly steps, which reduces delivery efficiency. The magnetic conduction structure is prone to jamming, leading to triggering failure and affecting the reliability of the device. The assembly error tolerance is low: the device has high requirements for the polarity of the magnets and the installation direction. If it is installed incorrectly or in reverse, development will not be triggered, and rework is difficult, resulting in material waste. The impact force of the magnetic rod on the pigment tube is unstable, especially at low temperatures or after transportation vibrations, which can easily lead to insufficient impact force, incomplete or unbroken aluminum foil, resulting in development failure and failure to form effective markings.

[0005] Therefore, how to provide a simple, easy-to-assemble, and reliable anti-tampering device has become a technical problem that needs to be solved in this field. Summary of the Invention

[0006] In view of this, this application proposes an anti-switching device to solve the problems of complex structure and poor triggering reliability of existing anti-switching devices.

[0007] According to this application, an anti-tampering device is proposed, comprising a first main body and a second main body respectively placed on both sides of a product. The first main body includes a receiving cavity, in which a first magnetic element and a movable second magnetic element are disposed. The first magnetic element is fixed to the top of the receiving cavity on the side away from the product. The second main body includes a third magnetic element. The anti-tampering device is adapted to be in an original state or an open state. In the original state, the second magnetic element is located at the bottom of the receiving cavity and is attracted to the third magnetic element across the product. In the open state, the second magnetic element is pulled to the top of the receiving cavity to attract the first magnetic element.

[0008] Optionally, an opening is provided at the top of the cavity, and an end cap is provided at the opening. The first magnetic element is fixed to the inner surface of the end cap, and the receiving cavity is also provided with an anti-recovery element to generate irreversible tampering marks.

[0009] Optionally, the receiving cavity is made of a light-transmitting material.

[0010] Optionally, the anti-counterfeiting component is a sticker with anti-counterfeiting markings that is affixed to the seam of the end cap seal.

[0011] Optionally, the anti-recovery component is a crushable component placed between the first magnetic component and the second magnetic component.

[0012] Optionally, the bottom of the receiving cavity has a visible marking.

[0013] Optionally, a positioning magnetic element is fixed to the top of the cavity for adsorbing the first magnetic element.

[0014] Optionally, the first body and the second body respectively include a first bonding portion and a second bonding portion for attaching the product, and at least one of the bonding surfaces of the first bonding portion and the second bonding portion with the product is provided with a stop member to prevent the anti-switching device from shifting.

[0015] Optionally, the outer edges of the first and second bonding portions extend outward to form a first anti-pry ring and a second anti-pry ring, which are bonded to the product.

[0016] Optionally, the anti-switching device further includes a puncture-resistant layer sandwiched between the second magnetic element and the third magnetic element.

[0017] According to the technical solution of this application, by adopting a magnetic system composed of a first magnetic component, a second magnetic component, and a third magnetic component, the triggering process only needs to rely on changes in magnetic force, which provides a rapid response and eliminates the risk of mechanical jamming, thus significantly improving the reliability of triggering. At the same time, the simplified structure reduces the number of parts, thereby reducing manufacturing costs and assembly difficulty.

[0018] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application, and the illustrative embodiments and descriptions thereof are used to explain this application. In the drawings: Figure 1 This is a perspective view of an anti-switching device according to a preferred embodiment of this application; Figure 2 This is an exploded view of an anti-switching device according to a preferred embodiment of this application.

[0020] Explanation of the attached figures: First main body 10 (including receiving cavity 11 (including first magnetic component 111, second magnetic component 112, cavity top 113, cavity bottom 114, end cap 115, positioning magnetic component 116, first fitting part 117, first anti-pry ring 118)); Second main body 20 (including third magnetic component 21, second fitting part 22, stop component 23, second anti-pry ring 24); Punctureable layer 30. Detailed Implementation

[0021] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] The anti-tampering device includes a first main body 10 and a second main body 20 respectively positioned on both sides of the product. This split design allows it to be easily clamped onto clothing, bags, and other items. The first main body 10 includes a receiving cavity 11, within which a first magnetic element 111 and a second magnetic element 112 are disposed. The first magnetic element 111 is fixed to the top 113 of the cavity 11 on the side away from the product, while the second magnetic element 112 can move between the top 113 and the bottom 114 of the cavity on the side closer to the product. The second main body 20 includes a third magnetic element 21. The anti-tampering device is adapted to be in its original or open state. In its original state, the second magnetic element 112 is located at the bottom 114 of the receiving cavity 11 and is attracted to the third magnetic element 21 across the product. The third magnetic element 21, across the product and the structural wall, exerts a magnetic attraction on the second magnetic element 112, which is greater than the magnetic force between the second magnetic element 112 and the first magnetic element at the far top 113. The attraction between 111 keeps the second magnetic element 112 stably in the position of the bottom 114 of the cavity. In the open state, the second magnetic element 112 is pulled to the top 113 of the cavity 11 to attract the first magnetic element 111. This is because when the user attempts to remove the anti-switching device and forcibly separate the first body 10 from the second body 20, as the second body 20 moves away, the magnetic attraction of the third magnetic element 21 to the second magnetic element 112 quickly weakens and disappears. At this time, the attraction of the first magnetic element 111 to the second magnetic element 112, which was originally secondary, becomes the dominant force. Under the action of this attraction, the second magnetic element 112 will be instantly attracted from the bottom 114 of the cavity to the top 113 of the cavity and finally attracted together with the first magnetic element 111.

[0023] According to the technical solution provided in this application, the simplified structure reduces manufacturing costs and assembly difficulty; at the same time, the change in distance during the removal of the anti-switching device will inevitably change the mutual attraction between the magnetic components, which will eventually lead to the displacement of the second magnetic component 112. The triggering process relies entirely on the natural change of magnetic force, responds quickly, and has no risk of wear, aging or jamming of mechanical parts, and the removal marks can be stably and reliably preserved.

[0024] In one implementation method during the production of the anti-tampering device, the first magnetic component 111 is first fixed to the top 113 of the cavity. The second magnetic component 112 is then attached to the bottom 114 of the cavity 11 by placing a fourth magnetic component on the outside of the cavity bottom 114. This ensures the second magnetic component 112 is attracted and fixed to the cavity bottom 114 at the factory. The cavity 11 is then sealed (e.g., with high-strength structural adhesive) to prevent it from being reopened. During product packaging, the first main body 10 and the second main body 20 are placed on either side of the product, bringing the third magnetic component 21 closer to the second magnetic component 112. The third magnetic component 21 is then slowly moved, spaced apart from the product, pushing the fourth magnetic component. This causes the second magnetic component 112 to gradually detach from the fourth magnetic component and attract the third magnetic component 21, thus completing the installation of the anti-tampering device.

[0025] After receiving the product, the correct way for consumers to remove the anti-tampering device is to hold the first main body 10 and the second main body 20 of the device with their left and right hands respectively, and then apply force to resist the magnetic attraction of the second magnetic component 112 and the third magnetic component 21 to pull them apart. As the distance between the second magnetic component 112 and the third magnetic component 21 increases, the magnetic attraction between them weakens. When the magnetic force of the first magnetic component 111 on the second magnetic component 112 exceeds that of the first magnetic component 112, the second magnetic component 112 is pulled to the top 113 of the receiving cavity 11 and is attracted to the first magnetic component 111. Since the receiving cavity 11 is sealed, it cannot be opened to restore the second magnetic component 112 to its initial state. Therefore, the first main body 10 and the second main body 20 are separated and cannot be restored. This can be directly used as evidence of removal for the merchant to use.

[0026] To save costs and facilitate the reuse of the anti-tampering device by merchants, preferably, the cavity 11 has an opening at its top 113, and an end cap 115 is provided at the opening. The first magnetic element 111 is fixed to the inner surface of the end cap 115. During product packaging, the operator first opens the end cap 115 and places the second magnetic element 112 at the bottom 114 of the cavity 11; then, the first main body 10 and the second main body 20 are placed on both sides of the product, and the first main body 10 and the second main body 20 of the anti-tampering device are fixed to the product by the attraction between the second magnetic element 112 and the third magnetic element 21; then, the end cap 115 is closed, completing the installation of the anti-tampering device. The cavity 11 is also provided with an anti-restore element to create irreversible tampering marks and prevent the end cap 115 from being opened and the second magnetic element 112 from being reset.

[0027] As one implementation method, the anti-counterfeiting component is a sticker with an anti-counterfeiting mark that is affixed to the sealing seam of the end cap 115. The anti-counterfeiting mark can use a unique and non-repeatable serial number, and the sticker can be made of disposable self-adhesive material, which is difficult to peel off and reuse, and can be used as an auxiliary means.

[0028] To prevent the sticker from being intentionally and seamlessly torn open the end cap 115, allowing the second magnetic component 112 to be restored to the bottom 114 of the receiving cavity 11, thus preventing a misjudgment of whether the product has been tampered with, preferably, the anti-tampering component also includes a crushable component placed between the first magnetic component 111 and the second magnetic component 112. As one embodiment, the crushable component is a three-dimensional origami with an anti-counterfeiting mark. When the second magnetic component 112 is attracted and attracted by the first magnetic component 111, it will crush the crushable component, forming an irreversible physical deformation that is difficult to restore, thus providing a direct and reliable indication of that the product has been opened. Furthermore, the three-dimensional origami can be made of disposable adhesive material, which cannot be peeled off and reused after being flattened. And because the three-dimensional origami has an anti-counterfeiting mark, it is also difficult to counterfeit or replace. The anti-counterfeiting mark can be a unique and non-repeatable serial number. As another embodiment, the crushable component can be a roll of stickers. The roll sticker retains its fluffy, curled shape in its original state, but flattens out when crushed. Due to its material properties, it is almost impossible to restore it to its original fluffy, curled shape, making the tampering marks clear and difficult to forge. Understandably, the anti-restore component could also be a fragile paint tube or other difficult-to-restore form placed between the first magnetic component 111 and the second magnetic component 112.

[0029] When a merchant receives a returned item, they can choose to check if the sticker at the end cap 115 seal is intact to determine if the item has been swapped, or they can open the end cap 115 to check if the crushable component inside the receiving cavity 11 is intact. Alternatively, as a more direct method of judgment, if the receiving cavity 11 does not have an end cap 115, preferably, the receiving cavity 11 is made of a translucent material, allowing the merchant to determine if the item has been swapped by observing the position of the second magnetic component 112 inside the receiving cavity 11 from the outside.

[0030] As a more conspicuous method, the bottom 114 of the receiving cavity 11 has a visible marking. When the anti-tamper is not removed (i.e., in its original state), the marking is pressed against the bottom surface of the second magnetic component 112. After the anti-tamper is removed (i.e., in the open state), the second magnetic component 112 is attracted to the top 113 of the receiving cavity 11, and the marking becomes visible and can be observed through the receiving cavity 11. By utilizing the positional change of the second magnetic component 112, the visible marking is covered and revealed, thereby indicating that the device has been opened. The operator can observe the inside of the receiving cavity 11 from the outside to determine whether the visible marking is exposed, thus quickly confirming whether the goods have been opened, achieving ease and efficiency. At the same time, since once the second magnetic component 112 is attracted to the top 113, it is extremely difficult to restore it to the bottom 114 of the cavity and re-cover the marking without damage without professional tools or if the receiving cavity 11 is a closed device, thus also achieving a reliable anti-restore function.

[0031] The first magnetic component 111 can be glued to the inner surface of the end cap 115. In order to facilitate the disassembly and replacement of the first magnetic component 111, preferably, a positioning magnetic component 116 for adsorbing the first magnetic component 111 is fixed on the inner surface of the end cap 115.

[0032] When the anti-tampering device is used on soft goods such as silk clothing, where the surface is prone to sliding or shifting, if the anti-tampering device is removed by sliding it away from the edge of the goods, it will not cause displacement of the second magnetic component 112, nor will it leave any traces of tampering. This technical solution also provides an optimized fixing structure. Preferably, the first body 10 and the second body 20 respectively include a first adhesive portion 117 and a second adhesive portion 22 for attaching to the goods. At least one of the first adhesive portion 117 and the second adhesive portion 22 is provided with a stop member 23 on the contact surface with the goods. As an example, the stop member 23 is a hard spike that can pierce or hook into the fibers of clothing, textiles, and other goods, effectively preventing the anti-tampering device from sliding on the surface of the goods and ensuring that it is firmly fixed in a predetermined position. This makes it difficult to remove the anti-tampering device from its original position by sliding it once it is installed, thus helping to prevent cheating by simply moving the device without disassembling it to use the goods. It ensures that the device must be pulled out to be removed, thereby inevitably triggering the anti-counterfeiting mechanism. Since the stop component 23 and the product remain relatively stationary during the gripping process, the clothing fabric will not be damaged.

[0033] To enhance the overall physical protection of the anti-tamper device and resist violent prying, the external structure of the first body 10 and the second body 20 has been reinforced. Preferably, the outer edges of the first fitting portion 117 and the second fitting portion 22 extend outward to form a first anti-pry ring 118 and a second anti-pry ring 24, which are fitted onto the product. These anti-pry rings increase the edge thickness of the anti-tamper device and create a smooth edge contour, making it difficult for external prying tools to find an effective insertion point and force application point, thereby significantly enhancing the device's anti-pry capability.

[0034] Furthermore, to counter more destructive hacking attempts, this application introduces an additional protective layer. Preferably, the anti-tampering device also includes a puncture-resistant layer 30 sandwiched between the second magnetic element 112 and the third magnetic element 21. This puncture-resistant layer 30 may be a piece of fragile paper. Preferably, the puncture-resistant layer 30 is provided on both sides of the product. The technical effect of the pierceable layer 30 is that if someone attempts to use a thin sheet, knife, or other tool to pry open the gap between the first body 10 and the second body 20, or attempts to insert a strong magnet between the second magnetic component 112 and the third magnetic component 21, thereby interfering with the normal operation of the second magnetic component 112 inside the receiving cavity 11, the second magnetic component 112 will remain fixed to the bottom of the cavity 114 due to the strong magnet even when separated from the third magnetic component 21, thus leaving no trace of removal. These actions are very likely to first come into contact with and pierce or scratch this very fragile and easily broken paper, leaving permanent and indelible physical damage marks, thereby preventing the intrusion of external tools. This provides additional evidence for determining whether the device has been subjected to brute force. At the same time, when the pierceable layer 30 is fragile paper, it also has the function of identifying whether the goods have been washed.

[0035] The preferred embodiments of this application have been described in detail above. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0036] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

[0037] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed in this application.

Claims

1. An anti-tampering device, comprising a first body (10) and a second body (20) respectively disposed on both sides of the product, characterized in that, The first body (10) includes a receiving cavity (11), in which a first magnetic element (111) and a movable second magnetic element (112) are disposed, and the first magnetic element (111) is fixed to the top (113) of the receiving cavity (11) on the side away from the product; the second body (20) includes a third magnetic element (21). The anti-switching device is adapted to be in an original state or an open state. In the original state, the second magnetic element (112) is located at the bottom (114) of the receiving cavity (11) and is attracted to the third magnetic element (21) across the product. In the open state, the second magnetic element (112) is pulled to the top (113) of the receiving cavity (11) to attract the first magnetic element (111).

2. The anti-switching device according to claim 1, characterized in that, An opening is provided at the top of the cavity (113), and an end cap (115) is provided at the opening. The first magnetic element (111) is fixed to the inner surface of the end cap (115). The receiving cavity (11) is also provided with an anti-recovery element to generate irreversible tampering marks.

3. The anti-switching device according to claim 1, characterized in that, The cavity (11) is made of a light-transmitting material.

4. The anti-switching device according to claim 2, characterized in that, The anti-counterfeiting component is a sticker with anti-counterfeiting markings that is affixed to the sealing joint gap of the end cap (115).

5. The anti-switching device according to claim 2, characterized in that, The anti-recovery component is a crushable component placed between the first magnetic component (111) and the second magnetic component (112).

6. The anti-switching device according to claim 3, characterized in that, The bottom (114) of the receiving cavity (11) has a visible marking.

7. The anti-switching device according to claim 1, characterized in that, The cavity top (113) is fixed with a positioning magnetic element (116) for adsorbing the first magnetic element (111).

8. The anti-switching device according to claim 1, characterized in that, The first body (10) and the second body (20) respectively include a first bonding part (117) and a second bonding part (22) for attaching the product. At least one of the bonding surfaces of the first bonding part (117) and the second bonding part (22) with the product is provided with a stop member (23) to prevent the anti-switching device from shifting.

9. The anti-switching device according to claim 8, characterized in that, The outer edges of the first bonding portion (117) and the second bonding portion (22) extend outward to form a first anti-pry ring (118) and a second anti-pry ring (24), which are attached to the product.

10. The anti-switching device according to claim 1, characterized in that, The anti-switching device also includes a puncture-resistant layer (30) sandwiched between the second magnetic element (112) and the third magnetic element (21).

Images