Anti-static polymer material cover with magnetic attraction structure

Abstract

The utility model discloses a kind of anti-static polymer material lids containing magnetic attraction structure, belong to cosmetic packaging technical field, to solve the problem that existing round powder box lid magnetic attraction structure cannot consider opening and closing convenience and closure reliability. It includes cover, the circular box body and rotating plate connected by damping hinge;Rotating plate is rotated and buckled with cover annular groove through snap ring, edge inlay even number first magnetic attraction piece of opposite arrangement;The second magnetic attraction piece of inlaying number adaptation and opposite arrangement is inlaid in the opening side of circular box body, and both opposite poles attract when initial buckling;Cover is equipped with position-limiting assembly to limit rotating plate position and angle, cover support shaft and rotating plate drive plate are equipped with coil spring between sleeve and realize automatic reset;Circular box body is equipped with sealing ring, rotating plate is equipped with adaptive sealing groove and inlaid cosmetic mirror.The utility model switches magnetic attraction state by rotation, considers convenient opening and closing and reliable closure, simultaneously improves content protection and use practicality, and is applicable to powder cosmetic packaging.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic packaging technology, and in particular to an antistatic polymer material cap with a magnetic structure. Background Technology

[0002] Round powder compacts are commonly used containers for storing powder-based cosmetics (such as loose powder and pressed powder). The lid, as a key component of the compact, must simultaneously meet three core requirements: ease of opening and closing, resistance to loosening after closure, and protection of the contents. Currently, the lids of most mainstream round powder compacts on the market generally adopt the following design:

[0003] Connection structure: The lid is connected to the box body through a damping hinge, allowing the lid to rotate around the box body to achieve the opening and closing action. At the same time, the damping hinge can provide a certain damping force to prevent the lid from hitting the box body too quickly when opening and closing.

[0004] Closure assistance structure: Equipped with a magnetic structure, the magnetic attraction ensures that the lid does not easily loosen after being closed, thus improving the reliability of the closure;

[0005] Material selection: Considering that powder cosmetics are prone to attracting environmental dust due to static electricity or causing powder particles to clump together due to static electricity, the lids are usually made of anti-static polymer materials (such as anti-static ABS, anti-static PC, etc.) to reduce static electricity generation and ensure the cleanliness of the contents and the stability of use.

[0006] However, the existing magnetic design of round powder box lids has irreconcilable technical contradictions, which seriously affect the user experience and the protection of the contents:

[0007] On the one hand, to reduce the resistance of opening and closing the lid and facilitate quick opening for users (especially in one-handed operation scenarios), magnetic components with weak magnetic attraction are often selected in the design. However, with this design, when the powder compact is carried (such as when placed in a makeup bag or handbag), it is easily affected by external vibration, squeezing or impact, and the lid can easily overcome the weak magnetic attraction and open on its own. This may not only cause the contents of the powder to leak out and contaminate other items in the bag, but also cause the powder compact to become damp and clump due to the failure of the seal after the lid is opened, reducing the effectiveness and shelf life.

[0008] On the other hand, if a magnetic component with a strong magnetic attraction is selected to solve the problem of "self-opening when carried" and enhance the sealing performance, the opening resistance of the lid will be significantly increased: users need to apply a large external force to overcome the magnetic force to open the lid. Especially when operating with one hand, one hand needs to hold the powder box firmly and the other hand needs to pry open the lid. The operation is cumbersome and laborious, which seriously reduces the convenience of use and contradicts the core requirement of cosmetics to be "lightweight and easy to use".

[0009] In summary, the existing magnetic structure of round powder box lids cannot simultaneously achieve both "easy opening and closing" and "reliable closure," and an optimized design solution that can resolve this contradiction is urgently needed. Utility Model Content

[0010] To solve the above-mentioned technical problems, this utility model provides an antistatic polymer material cover with a magnetic attraction structure that can balance the convenience of opening and closing with the reliability of closing.

[0011] This utility model discloses an antistatic polymer material cover with a magnetic attraction structure, comprising a cover body, a circular box body connected to the cover body via a damping hinge, and further comprising:

[0012] The rotating plate has a mounting groove concentrically provided on the surface of the rotating plate facing the cover. A retaining ring is provided on the circumferential side wall of the mounting groove. An annular groove is provided on the outer circumferential side wall of the cover. The retaining ring is rotatably engaged with the annular groove. The rotating plate can be rotatably fastened to the cover by the cooperation of the retaining ring and the annular groove.

[0013] A plurality of first magnetic blocks are evenly embedded in the edge of the rotating plate away from the cover, and the surfaces of the first magnetic blocks away from the cover are aligned with the corresponding surfaces of the rotating plate.

[0014] Several second magnetic blocks are evenly embedded in the edge of the opening side of the circular box. The number of second magnetic blocks is matched with the number of first magnetic blocks. After the cover moves the rotating plate to fasten on the circular box, the layout of the second magnetic blocks is matched with the layout of the first magnetic blocks.

[0015] The first magnetic block and the second magnetic block are both set to an even number, and the exposed surfaces of adjacent first magnetic blocks or adjacent second magnetic blocks have opposite magnetism. At the same time, the opposite surfaces of the first magnetic block and the corresponding second magnetic block have opposite magnetism.

[0016] The cover is provided with a limiting component for limiting the initial position and rotation angle of the rotating plate.

[0017] Furthermore, the feature is that a support shaft is concentrically arranged on the surface of the cover facing the rotating plate, and a driving plate is concentrically installed on the surface of the rotating plate facing the cover. A coil spring is sleeved on the support shaft, one end of the coil spring is connected to the support shaft, and the other end is connected to the edge of the driving plate.

[0018] Furthermore, the limiting component includes two limiting blocks, both of which are installed on the edge of the surface of the cover facing the rotating plate. A stop block is provided on the edge of the mounting groove of the rotating plate, and the stop block is located between the two limiting blocks. When the rotating plate is in the initial position on the cover, the stop block is in close contact with one of the limiting blocks. When the rotating block rotates on the cover and the stop block is in close contact with the other limiting block, the first magnetic block is rotated to face an adjacent second magnetic block. At this time, the magnetic properties of the opposite surfaces of the first magnetic block and the opposite second magnetic block are the same.

[0019] Furthermore, both the first magnetic block and the second magnetic block are made of neodymium iron boron permanent magnets.

[0020] Furthermore, a sealing ring is provided on the inner side of the opening side of the circular box, and a sealing groove adapted to the sealing ring is provided on the side of the rotating plate away from the cover.

[0021] Furthermore, a cosmetic mirror is concentrically arranged on the side of the rotating plate away from the cover.

[0022] Furthermore, the makeup mirror is embedded in the rotating plate, and the mirror surface of the makeup mirror is aligned with the corresponding surface of the rotating plate.

[0023] Furthermore, the outer circumferential sidewall of the rotating plate is provided with several anti-slip protrusions.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] To resolve the core contradictions of existing technologies and balance "convenience of opening and closing" with "reliability of closure": an even number of oppositely arranged first and second magnetic blocks, all of which are strong magnetic blocks, are used in conjunction with the rotation of a rotating plate. When closed, the opposite poles of the magnetic blocks attract each other to ensure a strong seal and prevent loosening, meeting the carrying requirements. When opened, the rotation switches so that the first and second magnetic blocks are no longer aligned, eliminating the magnetic resistance to opening. Alternatively, continued rotation aligns the first magnetic block and the adjacent second magnetic block so that they repel each other, causing the cover to pop open. This allows for convenient one-handed operation and breaks the dilemma of traditional magnetic structures where "strong attraction makes it difficult to open, while weak attraction makes it easy to loosen."

[0026] Automatic reset of the rotating plate enhances ease of operation: The cooperation between the cover support shaft, the rotating plate drive plate, and the coil spring allows the rotating plate to be automatically reset to its initial engagement position after the user releases it, eliminating the need for manual adjustment and simplifying the operation process.

[0027] Enhanced protection of contents: The matching design of the circular box sealing ring and the rotating plate sealing groove can further isolate air and external dust when the lid is closed, preventing powder cosmetics from getting damp and clumping, absorbing impurities, and extending the shelf life and effectiveness of the contents.

[0028] Enhanced usability and operational stability: The built-in makeup mirror on the rotating plate can directly assist with makeup application, eliminating the need to carry an additional mirror; the anti-slip raised structure on the outer circumference of the rotating plate increases hand friction, preventing slippage during rotation and improving the operating feel. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is an anatomical diagram of the cover of this utility model on the rotating plate;

[0031] Figure 3 This is a schematic diagram of the connection structure between the drive plate and the mounting groove of this utility model;

[0032] Figure 4 This is a left view of the present invention;

[0033] The following are labels in the attached diagram: 1. Cover; 2. Circular box; 3. Rotating plate; 4. Mounting groove; 5. Snap ring; 6. Annular groove; 7. First magnetic block; 8. Second magnetic block; 9. Support shaft; 10. Driving plate; 11. Coil spring; 12. Limiting block; 13. Stop block; 14. Sealing ring; 15. Sealing groove; 16. Anti-slip protrusion structure; 17. Makeup mirror. Detailed Implementation

[0034] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0035] like Figures 1 to 4 As shown, this utility model discloses an antistatic polymer material cover with a magnetic attraction structure, comprising a cover body 1, on which a circular box body 2 is connected via a damping hinge. The cover body 1 is made of antistatic polymer material and further includes:

[0036] The rotating plate 3 has a mounting groove 4 concentrically arranged on the surface of the rotating plate 3 facing the cover 1. A retaining ring 5 is provided on the circumferential side wall of the mounting groove 4. An annular groove 6 is provided on the outer circumferential side wall of the cover 1. The retaining ring 5 and the annular groove 6 are rotatably engaged. The rotating plate 3 can be rotatably fastened to the cover 1 through the cooperation of the retaining ring 5 and the annular groove 6.

[0037] A plurality of first magnetic blocks 7 are evenly embedded in the edge of the rotating plate 3 away from the cover 1, and the surfaces of the plurality of first magnetic blocks 7 away from the cover 1 are aligned with the corresponding surfaces of the rotating plate 3.

[0038] The edge of the opening side of the circular box 2 is evenly embedded with a number of second magnetic blocks 8. The number of second magnetic blocks 8 is adapted to the number of first magnetic blocks 7. After the cover 1 drives the rotating plate 3 to fasten on the circular box 2, the layout of the number of second magnetic blocks 8 is adapted to the layout of the number of first magnetic blocks 7.

[0039] The first magnetic block 7 and the second magnetic block 8 are both set to an even number, and the exposed surfaces of adjacent first magnetic blocks 7 or adjacent second magnetic blocks 8 have opposite magnetism. At the same time, the opposite surfaces of the first magnetic block 7 and the corresponding second magnetic block 8 also have opposite magnetism.

[0040] The cover 1 is provided with a limiting component for limiting the initial position and rotation angle of the rotating plate 3;

[0041] In this embodiment,

[0042] Rotating plate 3: The first magnetic block 7 is installed, and the magnetic attraction state (attraction / repulsion) is switched by rotating around the cover body 1;

[0043] Snap ring 5 and annular groove 6: realize the concentric rotational connection between rotating plate 3 and cover 1, and ensure stable rotation without falling off;

[0044] First magnetic block 7 (even number, arranged in opposite directions): It cooperates with the second magnetic block 8. Initially, the opposite poles attract each other to ensure reliable closure. After rotation, it no longer aligns with the second magnetic block, or after rotation, it aligns with the adjacent second magnetic block and repels each other with the same pole, reducing opening resistance.

[0045] The second magnetic block 8 (number matching, opposite arrangement): forms a magnetic attraction with the first magnetic block 7 and is the core component for switching between attraction and repulsion;

[0046] Limiting component: limits the initial position of rotating plate 3 (to ensure magnetic alignment when closed) and the rotation angle (to ensure accurate magnetic state after switching).

[0047] As a preferred embodiment of the above, the cover 1 is provided with a support shaft 9 concentrically on the surface facing the rotating plate 3, and the mounting groove 4 of the rotating plate 3 is provided with a driving plate 10 concentrically on the surface facing the cover 1. A coil spring 11 is sleeved on the support shaft 9, one end of the coil spring 11 is connected to the support shaft 9, and the other end is connected to the edge of the driving plate 10.

[0048] In this embodiment,

[0049] Support shaft 9: Provides a fixed mounting carrier for coil spring 11, ensuring the stability of coil spring 11 under force;

[0050] Drive plate 10: connects rotating plate 3 and coil spring 11, and transmits the elastic force of coil spring 11 to rotating plate 3 to achieve automatic reset;

[0051] Spring 11: Stores the elastic potential energy of the rotating plate 3 when it rotates, and releases the potential energy when it is released to drive the rotating plate 3 back to the initial engagement position, simplifying the operation.

[0052] As a preferred embodiment of the above embodiment, the limiting component includes two limiting blocks 12, both of which are installed on the edge of the surface of the cover 1 facing the rotating plate 3. A stop block 13 is provided on the edge of the mounting groove 4 of the rotating plate 3. The stop block 13 is located between the two limiting blocks 12. When the rotating plate 3 is in the initial position on the cover 1, the stop block 13 is in close contact with one of the limiting blocks 12. When the rotating block rotates on the cover 1 and the stop block 13 is in close contact with the other limiting block 12, the first magnetic block 7 is rotated to face an adjacent second magnetic block 8. At this time, the magnetic properties of the opposite surfaces of the first magnetic block 7 and the opposite second magnetic block 8 are the same.

[0053] In this embodiment,

[0054] Limiting blocks 12 (two): fixed on the cover 1, forming the rotation boundary of the rotating plate 3;

[0055] Stop 13: When rotating with the rotating plate 3, it restricts the rotation when it is in contact with the limiting block 12, ensuring that the rotating plate 3 only switches between the "attracting position" and the "repelling position" to avoid magnetic misalignment.

[0056] As a preferred embodiment of the above, both the first magnetic block 7 and the second magnetic block 8 are made of neodymium iron boron permanent magnets.

[0057] In this embodiment,

[0058] Neodymium iron boron permanent magnets: possess high strength and stable magnetism, ensuring sufficient magnetic attraction force to prevent loosening, and the repulsive force can effectively reduce opening resistance, and the magnetic decay is small over long-term use.

[0059] As a preferred embodiment of the above, a sealing ring 14 is provided on the inner side of the opening side of the circular box 2, and a sealing groove 15 adapted to the sealing ring 14 is provided on the side of the rotating plate 3 away from the cover 1.

[0060] In this embodiment,

[0061] Sealing ring 14: fits into the sealing groove 15 of the rotating plate 3 to fill the gap after the cover is closed;

[0062] Sealing groove 15: accommodates sealing ring 14, forming a tight sealing structure to isolate air and dust and protect the contents.

[0063] As a preferred embodiment of the above embodiment, a makeup mirror 17 is concentrically arranged on the surface of the rotating plate 3 away from the cover 1. The makeup mirror 17 is embedded in the rotating plate 3, and the mirror surface of the makeup mirror 17 is aligned with the corresponding surface of the rotating plate 3.

[0064] In this embodiment,

[0065] Makeup Mirror 17: Provides users with a mirror image for makeup application, enhancing product usability; the recessed and mirror-aligned design ensures a flat surface on the rotating plate 3, without affecting the closing and operation of the lid, and the recessed mirror avoids gaps between the mirror and the edge of the rotating plate 3, making the mirror easier to clean.

[0066] As a preferred embodiment of the above embodiment, the outer circumferential sidewall of the rotating plate 3 is provided with a plurality of anti-slip protrusions 16;

[0067] In this embodiment,

[0068] Anti-slip protrusion structure 16: Increases the friction between the hand and the rotating plate 3, prevents slippage during rotation, and ensures that the user can easily drive the rotating plate 3 to switch magnetic states.

[0069] The working principle of this utility model is as follows:

[0070] In the closed state, the rotating plate 3 is in its initial position under the action of the limiting component and the coil spring 11. The first magnetic block 7 and the second magnetic block 8 are attracted by opposite poles, and both the first magnetic block 7 and the second magnetic block 8 are made of strong magnetic materials. With the tight fit between the sealing ring 14 and the sealing groove 15, the cover can be reliably closed (preventing loosening, moisture, and dust). When it needs to be opened, the user rotates the rotating plate 3 through the anti-slip protrusion, and the stop block 13 moves along the limiting block 12. When the first magnetic block 7 and the second magnetic block 8 are no longer aligned, there is no magnetic opening resistance, and only the resistance of the damping hinge needs to be overcome. The lid can be opened with force, and even more conveniently, the rotating plate 3 can be rotated until the stop block 13 is in contact with another limiting block 12. At this time, the first magnetic block 7 rotates to face the adjacent second magnetic block 8 (like poles facing each other), generating a repulsive force, which generates the opening power. At this time, the lid 1 can be opened instantly, and the user can easily lift the lid 1, which greatly facilitates one-handed operation. After opening, the rotating plate 3 is released, and the coil spring 11 releases its elastic potential energy, which drives the rotating plate 3 to automatically return to the initial position through the driving plate 10, preparing for the next closure. The whole process takes into account both convenient operation and protection of contents.

[0071] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cap made of antistatic polymer material with a magnetic attraction structure, comprising a cap body (1), wherein a circular box body (2) is connected to the cap body (1) via a damping hinge, characterized in that, Also includes: A rotating plate (3) is provided with a mounting groove (4) on the side facing the cover (1). A retaining ring (5) is provided on the circumferential side wall of the mounting groove (4). An annular groove (6) is provided on the outer circumferential side wall of the cover (1). The retaining ring (5) and the annular groove (6) are rotatably engaged. The rotating plate (3) can be rotatably fastened to the cover (1) through the engagement of the retaining ring (5) and the annular groove (6). A plurality of first magnetic blocks (7) are evenly embedded in the edge of the rotating plate (3) away from the cover (1), and the surfaces of the plurality of first magnetic blocks (7) away from the cover (1) are aligned with the corresponding surfaces of the rotating plate (3). Several second magnetic blocks (8) are evenly embedded in the edge of the opening side of the circular box (2). The number of second magnetic blocks (8) is matched with the number of first magnetic blocks (7). After the cover (1) drives the rotating plate (3) to be fastened on the circular box (2), the layout of several second magnetic blocks (8) is matched with the layout of several first magnetic blocks (7). The first magnetic block (7) and the second magnetic block (8) are both set to an even number, and the exposed surfaces of adjacent first magnetic blocks (7) or adjacent second magnetic blocks (8) have opposite magnetism. At the same time, the opposite surfaces of the first magnetic block (7) and the corresponding second magnetic block (8) have also opposite magnetism. The cover (1) is provided with a limiting component for limiting the initial position and rotation angle of the rotating plate (3).

2. The antistatic polymer material cover with a magnetic attraction structure as described in claim 1, characterized in that, The cover (1) is provided with a support shaft (9) on the side facing the rotating plate (3), and the mounting groove (4) of the rotating plate (3) is provided with a driving plate (10) on the side facing the cover (1). A coil spring (11) is sleeved on the support shaft (9). One end of the coil spring (11) is connected to the support shaft (9), and the other end is connected to the edge of the driving plate (10).

3. The antistatic polymer material lid with a magnetic attraction structure as described in claim 1, characterized in that, The limiting component includes two limiting blocks (12), both of which are installed on the edge of the surface of the cover (1) facing the rotating plate (3). A stop block (13) is provided on the edge of the mounting groove (4) of the rotating plate (3). The stop block (13) is located between the two limiting blocks (12). When the rotating plate (3) is in the initial position on the cover (1), the stop block (13) is in close contact with one of the limiting blocks (12). When the rotating block rotates on the cover (1) and the stop block (13) is in close contact with the other limiting block (12), the first magnetic block (7) is rotated to face an adjacent second magnetic block (8). At this time, the magnetic properties of the opposite surfaces of the first magnetic block (7) and the opposite second magnetic block (8) are the same.

4. The antistatic polymer material cover with a magnetic attraction structure as described in claim 1, characterized in that, Both the first magnetic block (7) and the second magnetic block (8) are set as neodymium iron boron permanent magnets.

5. The antistatic polymer material cover with a magnetic attraction structure as described in claim 1, characterized in that, A sealing ring (14) is provided on the inner side of the opening side of the circular box (2), and a sealing groove (15) adapted to the sealing ring (14) is provided on the side of the rotating plate (3) away from the cover (1).

6. The antistatic polymer material lid with a magnetic attraction structure as described in claim 1, characterized in that, A makeup mirror (17) is concentrically arranged on the surface of the rotating plate (3) away from the cover (1).

7. The antistatic polymer material lid with a magnetic attraction structure as described in claim 6, characterized in that, The makeup mirror (17) is embedded in the rotating plate (3), and the mirror surface of the makeup mirror (17) is aligned with the corresponding surface of the rotating plate (3).

8. The antistatic polymer material cover with a magnetic attraction structure as described in claim 1, characterized in that, The outer circumferential sidewall of the rotating plate (3) is provided with several anti-slip protrusions (16).

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