Anti-rotation anti-theft cover

Abstract

This application relates to an anti-rotation tamper-evident cover. The anti-rotation tamper-evident cover includes a lower cover, an upper cover, an tamper-evident strip, and an anti-rotation mechanism. The lower cover is used for fixed connection with the container opening. A threaded connection structure is provided between the upper and lower covers. The upper cover rotates in a preset tightening direction to screw and fix itself to the lower cover through the threaded connection structure. The upper cover rotates in a loosening direction to release the screw-on fixation with the lower cover. The loosening direction is opposite to the tightening direction. The tamper-evident strip is located on the upper cover. The anti-rotation mechanism includes a first stop and a second stop. The first stop is located on the tamper-evident strip. The second stop is located on the lower cover and is used to abut against the first stop in the loosening direction. This achieves the anti-rotation function during the process of pulling open the tamper-evident strip, preventing the tamper-evident strip from being pulled out of the cover during the threaded connection structure, thus optimizing the user experience. At the same time, the first stop of the tamper-evident strip also helps to improve the structural strength of the tamper-evident strip, preventing the user from breaking the tamper-evident strip during the opening process, further improving the user experience.

Description

Technical Field

[0001] This application relates to the field of fast-moving consumer goods packaging technology, and in particular to anti-rot and anti-theft caps. Background Technology

[0002] In the fast-moving consumer goods (FMCG) packaging sector, tamper-evident caps are core components ensuring the sealing and security of products before opening. Their design requires a balance between cost control and functionality. Currently, most FMCG tamper-evident caps on the market adopt a threaded fit structure with a short unscrewing stroke to balance cost and functionality. That is, the upper and lower caps are screwed together and fixed by a short threaded section, allowing users to unscrew the upper cap without having to turn it many times.

[0003] However, this design has a significant flaw: the short unscrewing stroke results in a shallow thread engagement depth between the upper and lower covers. When the user pulls the anti-theft strip in the preset direction to unlock the cover, the pulling force is transmitted to the upper cover through the strip. Due to the limited constraint of the thread engagement, the upper cover is prone to rotate synchronously with the pulling action of the anti-theft strip, eventually causing the upper cover to be lifted when the strip is pulled, severely impacting the user experience. Utility Model Content

[0004] Therefore, it is necessary to provide a rotation-stopping anti-theft cover to address the problem that pulling on the anti-theft strip can easily lift the top cover.

[0005] An embodiment of the first aspect of this application provides an anti-rotation and anti-theft cover, comprising:

[0006] The bottom cover is used to securely connect to the container opening;

[0007] The upper cover is provided with a threaded connection structure with the lower cover. The upper cover rotates in a preset tightening direction to engage and fix with the lower cover through the threaded connection structure. The upper cover rotates in a loosening direction to release the engagement and fixation with the lower cover. The loosening direction is opposite to the tightening direction.

[0008] Anti-theft strip, provided on the upper cover;

[0009] An anti-rotation mechanism is provided, comprising a first stop and a second stop. The first stop is disposed on the anti-theft strip, and the second stop is disposed on the lower cover and is used to abut against the first stop in the loosening direction.

[0010] In one embodiment, a plurality of the first blocks are provided and arranged in an array along the length of the anti-theft strip on the inner side of the anti-theft strip.

[0011] In one embodiment, a plurality of second blocks are provided and arranged in a circumferential array on the outer side of the lower cover.

[0012] In one embodiment, the number of the second blocks is less than the number of the first blocks;

[0013] The distance between two adjacent second blocks is greater than or equal to the dimension of the first block in the length direction of the anti-theft strip.

[0014] In one embodiment, a reinforcing structure is provided between the first stop and the anti-theft strip.

[0015] In one embodiment, the reinforcing structure includes:

[0016] The first reinforcing rib is fixedly connected to the top of the first stop and extends along the length of the anti-theft strip.

[0017] In one embodiment, the first reinforcing rib is provided with a reinforcing protrusion extending away from the anti-theft strip;

[0018] The second stop is provided with a reinforcing groove into which the reinforcing protrusion extends.

[0019] In one embodiment, the reinforcing structure further includes:

[0020] The second reinforcing rib is spaced apart on the side of the first block away from the second block, and the top of the second reinforcing rib is fixedly connected to the first reinforcing rib.

[0021] In one embodiment, the lower cover is provided with a recessed connecting groove, and the second stop is disposed in the connecting groove;

[0022] The anti-theft strip covers the connecting groove.

[0023] In one embodiment, the end of the anti-theft strip is provided with a pull-holding portion, and an extension portion is connected between the pull-holding portion and the end of the anti-theft strip, the pull-holding portion extending outward through the extension portion;

[0024] The lower cover is provided with a relief groove corresponding to the pull part, and a gap is provided between the relief groove and the pull part, the gap allowing the user to insert.

[0025] According to the embodiments of this application, the anti-rotation tamper-evident cover has a lower cover fixed to the container opening, and the upper cover is screwed onto the lower cover via a short-stroke thread to achieve an initial seal. When the user pulls the tamper-evident strip, the strip drives the first stop to move synchronously. At this time, the second stop on the lower cover forms a physical block with the first stop, and the second stop applies a reverse constraint force to the first stop, counteracting the torque transmitted from the pulling force to the upper cover and preventing the upper cover from rotating with the tamper-evident strip. After the tamper-evident strip is completely pulled off, the upper cover can be screwed open normally along the short-stroke thread. By setting the first stop in the tamper-evident strip of the upper cover and the second stop at the mating position of the lower cover, the anti-rotation function is achieved during the process of pulling open the tamper-evident strip. This avoids the scenario where the tamper-evident strip pulls the cover out during the pulling process in threaded connection structures, especially short-stroke threaded connection structures, thus optimizing the user experience. At the same time, the first stop of the tamper-evident strip also helps to improve the structural strength of the tamper-evident strip, preventing the user from breaking the tamper-evident strip during the pulling process, thus improving the user experience. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the anti-rotation and anti-theft cover according to an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the structure of the lower cover of the anti-rotation and anti-theft cover according to an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the structure of the anti-rotation and anti-theft cover in an embodiment of this application, showing the contact between the first stop and the second stop.

[0029] Figure 4 This is a partial structural diagram of the anti-theft strip in an anti-rotation and anti-theft cover according to an embodiment of this application.

[0030] Figure label:

[0031] 100. Bottom cover;

[0032] 200, Top cover; 210, Connecting groove; 220, Clearance groove;

[0033] 300. Threaded connection structure;

[0034] 400. Anti-theft strip; 410. Pull-out part; 420. Extension part;

[0035] 500. Anti-rotation mechanism; 510. First stop block; 520. Second stop block; 521. Reinforcing groove;

[0036] 600. Reinforced structure; 610. First reinforcing rib; 611. Reinforcing protrusion; 620. Second reinforcing rib. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0038] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] It should be noted that if a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. If a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0041] See Figure 1 , Figure 2 and Figure 3At least one embodiment of this application provides an anti-rotation and anti-theft cover, which includes a lower cover 100, an upper cover 200, an anti-theft strip 400, and an anti-rotation mechanism 500. The lower cover 100 is used to fix it to the opening of a container. A threaded connection structure 300 is provided between the upper cover 200 and the lower cover 100. The upper cover 200 rotates in a preset tightening direction to be screwed and fixed to the lower cover 100 through the threaded connection structure 300. The upper cover 200 rotates in a loosening direction to release the screwing and fixing with the lower cover 100. The loosening direction is opposite to the tightening direction. The anti-theft strip 400 is provided on the upper cover 200. The anti-rotation mechanism 500 includes a first stop 510 and a second stop 520. The first stop 510 is provided on the anti-theft strip 400. The second stop 520 is provided on the lower cover 100 and is used to abut against the first stop 510 in the loosening direction.

[0042] in, Figure 1 The X direction is the tightening direction, and the Y direction is the loosening direction.

[0043] With the above setup, after the lower cover 100 is fixed to the container opening, the upper cover 200 is screwed onto the lower cover 100 via a short-stroke thread to achieve an initial seal. When the user pulls the anti-theft strip 400, the anti-theft strip 400 drives the first stop 510 to move synchronously. At this time, the second stop 520 on the lower cover 100 forms a physical block with the first stop 510. The second stop 520 applies a reverse restraint force to the first stop 510, counteracting the torque transmitted from the pulling force to the upper cover 200 and preventing the upper cover 200 from rotating with the anti-theft strip 400. After the anti-theft strip 400 is completely pulled off, the upper cover 200 can be screwed open normally along the short-stroke thread.

[0044] According to the embodiments of this application, the anti-rotation anti-theft cover, by setting a first stop 510 in the anti-theft strip 400 of the upper cover 200 and a second stop 520 at the mating position of the lower cover 100, achieves the anti-rotation function during the process of pulling open the anti-theft strip 400. This avoids the scenario where the anti-theft strip 400 is pulled out of the cover during the opening process in the threaded connection structure 300, especially the short-stroke threaded connection structure 300, thus optimizing the user experience. At the same time, the first stop 510 of the anti-theft strip 400 also helps to improve the structural strength of the anti-theft strip 400, preventing the user from breaking the anti-theft strip 400 during the opening process, thus improving the user experience.

[0045] In some embodiments, a plurality of first blocks 510 are provided and are arranged in an array along the length direction of the anti-theft strip 400 on the inner side of the anti-theft strip 400.

[0046] In some embodiments, a plurality of second blocks 520 are provided and are arranged in a circumferential array on the outer side of the lower cover 100.

[0047] By increasing the engagement points of the first stop 510 and the second stop 520 through the above settings, the stability of the abutment and blocking is improved, the torque transmitted to the upper cover 200 by the pulling force is more reliably offset, the upper cover 200 is prevented from rotating with the anti-theft strip 400, and the structural strength of the anti-theft strip 400 is also enhanced, the pulling and breaking situation is reduced, and the user experience is optimized.

[0048] In some embodiments, the number of second stops 520 is less than the number of first stops 510; the distance between two adjacent second stops 520 is greater than or equal to the dimension of the first stop 510 in the length direction of the anti-theft strip 400. The smaller number of second stops 520 makes it easier for the first stop 510 to be inserted between two second stops 520 during assembly.

[0049] It is understandable that in actual production, due to factors such as processing precision and assembly process, there may be slight errors in the positions of the first stop 510 and the second stop 520 of different anti-theft covers. After assembly, the first stop 510 can still have a certain distance from the second stop 520. Allowing this distance after assembly allows for the subsequent movement of the stops to accommodate these minor errors, enhancing the design's fault tolerance, reducing product scrap rates caused by processing and assembly errors, and improving production stability. It is not necessary to maintain the contact between the first stop 510 and the second stop 520 from the beginning; simply rotating the anti-theft strip 400 in the loosening direction moves the first stop 510, thus achieving contact between the first stop 510 and the second stop 520 in the loosening direction. The core requirement of the anti-rotation mechanism 500 is to prevent the upper cover 200 from moving when the user pulls the anti-theft strip 400. Only when the anti-theft strip 400 rotates in the loosening direction, i.e., when the user pulls the anti-theft strip 400 to trigger the anti-rotation requirement, is it necessary for the first stop 510 and the second stop to form an abutment to transmit a reverse restraint force. After assembly until the user pulls the anti-theft strip 400, the anti-theft cover is in a static state or only needs to maintain its initial seal; the abutment of the stops is not required to meet the usage requirements.

[0050] In the working logic of the anti-rotation anti-theft cover, the first stop 510 is a key force transmission component: when the user pulls the anti-theft strip 400, the anti-theft strip 400 needs to drive the first stop 510 to move synchronously, and the first stop 510 needs to withstand the reverse constraint force when it abuts against the second stop 520. If the connection between the first stop 510 and the anti-theft strip 400 or the structure of the first stop 510 itself is weak, problems such as connection breakage and block deformation are likely to occur. To alleviate this problem, in some embodiments, a reinforcing structure 600 is provided between the first stop 510 and the anti-theft strip 400. The reinforcing structure 600 increases the contact area between the anti-theft strip 400 and the first stop 510, improving the bonding firmness between the first stop 510 and the anti-theft strip 400, ensuring that when the anti-theft strip 400 rotates, the first stop 510 can move synchronously without delay or loosening, avoiding the failure of the anti-rotation function.

[0051] Meanwhile, the reinforced structure 600 can increase the overall rigidity of the first stop 510, and improve its resistance to deformation and fracture. On the one hand, it can withstand the reverse constraint force applied by the second stop 520 without damage; on the other hand, it can disperse the concentrated force to a larger area, avoid structural failure caused by excessive local stress, ensure that the reverse constraint force can be stably transmitted when the contact is made, effectively offset the torque transmitted to the upper cover 200 by the pulling force, and prevent the upper cover 200 from rotating with the anti-theft strip 400.

[0052] Combination Figure 4 In some embodiments, the reinforcing structure 600 includes a first reinforcing rib 610, which is fixedly connected to the top of the first stop 510 and extends along the length of the anti-theft strip 400. One end of the first reinforcing rib 610 is fixedly connected to the top of the first stop 510, forming a rigid connection with the stop; the other end extends along the length of the anti-theft strip 400, forming a stable connection with the anti-theft strip 400.

[0053] With the above configuration, the first reinforcing rib 610 extends along the length of the anti-theft strip 400, significantly increasing the contact area and distributing the force on the first stop 510 to a longer area of ​​the anti-theft strip 400. This avoids localized overload and ensures that when the anti-theft strip 400 is pulled, the first stop 510 can move synchronously with the anti-theft strip 400 without loosening or delay, guaranteeing uninterrupted power transmission. When the first stop 510 abuts against the second stop 520, it will bear the reverse constraint force from the second stop 520. If the first stop 510 itself lacks sufficient rigidity, it is prone to bending or breaking at the top. The first reinforcing rib 610 is fixed to the top of the first stop 510. The structure extending along the length direction can enhance the structural support of the top of the stop, which is equivalent to increasing the structural strength of the first stop 510. It can effectively resist the impact of external force when it comes into contact, prevent the stop from deforming due to force, ensure that it can stably transmit the reverse constraint force, offset the torque transmitted to the upper cover 200 by the pulling force, and prevent the upper cover 200 from rotating with the anti-theft strip 400.

[0054] In some embodiments, the first reinforcing rib 610 is provided with a reinforcing protrusion 611 extending away from the anti-theft strip 400; the second stop block 520 is provided with a reinforcing groove 521 into which the reinforcing protrusion 611 extends. The reinforcing protrusion 611 serves as an extension 420 of the first reinforcing rib 610, and its cooperation with the reinforcing groove 521 enhances the connection between the first reinforcing rib 610 and the anti-theft strip 400, while also dispersing the force on the first reinforcing rib 610. The reinforcing groove 521 provides a certain degree of support for the reinforcing protrusion 611 and indirectly enhances the deformation resistance of the first stop block 510, further extending the service life of the component.

[0055] In some embodiments, the reinforcing structure 600 further includes a second reinforcing rib 620, which is spaced apart on the side of the first stop 510 opposite to the second stop 520, and the top of the second reinforcing rib 620 is fixedly connected to the first reinforcing rib 610. When the first stop 510 abuts against the second stop 520, it will be subjected to a reverse restraining force along the loosening direction. This force can easily cause the first stop 510 to undergo lateral bending deformation on the side opposite to the second stop 520. The second reinforcing rib 620 is located on the side of the first stop 510 opposite to the second stop 520, which can increase the reverse support, prevent the first stop 510 from bending or breaking due to force, ensure that it always maintains a stable shape to transmit the restraining force, and ensure the anti-rotation function.

[0056] Meanwhile, the first reinforcing rib 610 needs to simultaneously bear the dual functions of connecting the first stop 510 and the anti-theft strip 400, and enhancing the strength of the top of the stop. Under long-term stress, stress concentration is likely to occur in the local area connected to the stop. The top of the second reinforcing rib 620 is fixedly connected to the first reinforcing rib 610, which can disperse the stress on the first reinforcing rib 610 to itself, and then further transfer the force to different areas of the anti-theft strip 400 through the spaced distribution characteristics, avoiding cracking due to excessive stress on a single part of the first reinforcing rib 610, and extending its service life.

[0057] Through the above configuration, the fixed connection between the second reinforcing rib 620, the first reinforcing rib 610, and the first stop block 510 forms a rigid whole. The first reinforcing rib 610 provides longitudinal support along the length of the anti-theft strip 400, and the second reinforcing rib 620 provides lateral support along the thickness of the stop block. Together, they transform the connection between the first stop block 510 and the anti-theft strip 400 into a three-dimensional support, significantly improving the overall rigidity of the reinforced structure 600. Even under large tensile forces, it can prevent the reinforced structure 600 from loosening or deforming, ensuring the stability of power transmission and anti-rotation constraint. This further reduces the probability of component damage when the user pulls the anti-theft strip 400, while ensuring that the anti-rotation function remains stable and effective during long-term use. Simultaneously, it does not interfere with the normal removal of the anti-theft strip 400 and the opening operation of the top cover 200, balancing structural strength and ease of use, and optimizing the overall performance and user experience of the anti-theft cover.

[0058] See Figure 1In some embodiments, the lower cover 100 is provided with a recessed connecting groove 210, and the second stop 520 is disposed within the connecting groove 210; the anti-theft strip 400 covers the connecting groove 210. The connecting groove 210 provides installation space for the second stop 520, preventing the second stop 520 from protruding from the surface of the lower cover 100 and causing structural clutter; while the anti-theft strip 400 covers the groove, it can also hide the connecting groove 210 and the second stop 520 inside, making the overall appearance of the anti-theft cover simpler and reducing the space occupied by each component. After the anti-theft strip 400 covers the connecting groove 210, it can fill the recessed space of the groove, reduce the gap between the lower cover 100 and the anti-theft strip 400, help improve the overall sealing performance of the anti-theft cover, and prevent the contents of the container from leaking due to gaps or the entry of external moisture; at the same time, the cover structure also increases the difficulty of unauthorized opening. To access the second stop 520 inside the connecting slot 210, the anti-theft strip 400 must first be broken, further enhancing the anti-theft effect of the anti-theft cover.

[0059] In some embodiments, the end of the anti-theft strip 400 is provided with a pull part 410, and an extension part 420 is connected between the pull part 410 and the end of the anti-theft strip 400. The pull part 410 extends outward through the extension part 420. The lower cover 100 is provided with a relief groove 220 corresponding to the pull part 410. A gap is provided between the relief groove 220 and the pull part 410, and the gap allows the user to insert.

[0060] Specifically, the recessed groove 220 of the lower cover 100 prevents the pull part 410 from directly pressing against the surface of the lower cover 100, thus preventing the pull part 410 from being too tight to pry open. The gap between the recessed groove 220 and the pull part 410 allows the user's fingers or fingernails to be inserted, enabling the user to easily pinch the pull part 410 and apply pulling force. Without this gap, when the pull part 410 is pressed tightly against the lower cover 100, the fingers cannot exert force, and the existence of the gap directly ensures the smoothness of the pulling action, avoiding the breakage of the anti-theft strip 400 or a poor user experience due to obstructed operation.

[0061] In some embodiments, the pull grip 410 is designed for easier gripping and may have anti-slip textures to provide users with a clear point of application of force. The outward extension of the extension 420 further protrudes the pull grip 410 from the overall structure of the anti-theft cover, allowing users to quickly locate the pull grip 410 without careful searching, which greatly reduces the difficulty of operation, especially for the elderly, children, and other people with weaker hand dexterity.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A rotation-resistant and anti-theft cover, characterized in that, include: The bottom cover is used to securely connect to the container opening; The upper cover is provided with a threaded connection structure with the lower cover. The upper cover rotates in a preset tightening direction to engage and fix with the lower cover through the threaded connection structure. The upper cover rotates in a loosening direction to release the engagement and fixation with the lower cover. The loosening direction is opposite to the tightening direction. Anti-theft strip, provided on the upper cover; An anti-rotation mechanism is provided, comprising a first stop and a second stop. The first stop is disposed on the anti-theft strip, and the second stop is disposed on the lower cover and is used to abut against the first stop in the loosening direction.

2. The anti-rotation and anti-theft cover according to claim 1, characterized in that, The first block is provided in a plurality of them, and is arranged in an array along the length direction of the anti-theft strip on the inner side of the anti-theft strip.

3. The anti-rotation and anti-theft cover according to claim 2, characterized in that, The second stop is provided in a plurality of units and is arranged in a circumferential array on the outer side of the lower cover.

4. The anti-rotation and anti-theft cover according to claim 3, characterized in that, The number of the second stop blocks is less than the number of the first stop blocks; The distance between two adjacent second blocks is greater than or equal to the dimension of the first block in the length direction of the anti-theft strip.

5. The anti-rotation and anti-theft cover according to claim 1, characterized in that, A reinforcing structure is provided between the first stop block and the anti-theft strip.

6. The anti-rotation and anti-theft cover according to claim 5, characterized in that, The reinforcing structure includes: The first reinforcing rib is fixedly connected to the top of the first stop and extends along the length of the anti-theft strip.

7. The anti-rotation and anti-theft cover according to claim 6, characterized in that, The first reinforcing rib is provided with a reinforcing protrusion extending away from the anti-theft strip; The second stop is provided with a reinforcing groove into which the reinforcing protrusion extends.

8. The anti-rotation and anti-theft cover according to claim 6, characterized in that, The reinforcing structure also includes: The second reinforcing rib is spaced apart on the side of the first block away from the second block, and the top of the second reinforcing rib is fixedly connected to the first reinforcing rib.

9. The anti-rotation and anti-theft cover according to claim 1, characterized in that, The lower cover is provided with a recessed connecting groove, and the second stop block is disposed in the connecting groove; The anti-theft strip covers the connecting groove.

10. The anti-rotation and anti-theft cover according to claim 1, characterized in that, The end of the anti-theft strip is provided with a pull part, and an extension part is connected between the pull part and the end of the anti-theft strip, and the pull part extends outward through the extension part; The lower cover is provided with a relief groove corresponding to the pull part, and a gap is provided between the relief groove and the pull part, the gap allowing the user to insert.

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