Mounting structure of magnet and cosmetic packaging container

Abstract

The application discloses a magnet mounting structure and a cosmetic packaging container, wherein the magnet mounting structure comprises an outer cylinder, an inner cylinder and a magnet, the inner cylinder is provided with a positioning groove and an anti-falling part for limiting the magnet from falling out, the anti-falling part is movably arranged on the inner cylinder and can move between a first position for limiting the magnet from falling out and a second position for allowing the magnet to be taken out, and the outer cylinder is sleeved with the inner cylinder, and after assembly is completed, the outer cylinder blocks the anti-falling part from moving to the second position, so that the anti-falling part is locked at the first position. The magnet is placed in the positioning groove, and the anti-falling part is limited, so that the problem that the magnet falls out of the inner cylinder due to accidental falling and the like can be effectively avoided, the stability and reliability of the structure are remarkably improved, and in addition, only through the sleeving action of the outer cylinder and the inner cylinder, the anti-falling part can be automatically driven to move from the second position to the first position, the assembly is locked, the assembly process is simplified, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of cosmetic packaging, and in particular to a magnet mounting structure and a cosmetic packaging container. Background Technology

[0002] With the improvement of living standards, cosmetics account for an increasing proportion of daily consumption. A lipstick tube is an outer packaging container used to store lipstick. Besides a core assembly that allows the lipstick to be twisted out / retracted, it usually includes a decorative and protective outer cap and tube body. In terms of shape, lipstick tubes are mostly cylindrical to fit the shape of the core assembly, although some have more novel rectangular designs. Currently, the outer cap and tube body of rectangular lipstick tubes generally use a snap-fit ​​connection; some also use magnetic attraction for connection.

[0003] Traditional magnetic lipstick tubes typically use an interference fit to secure the magnet; however, this design has significant drawbacks. If the interference between the magnet and the mounting rib is too large, the assembly process becomes significantly more difficult, impacting production efficiency. If the interference is too small, it fails to provide sufficient fixing force, making the magnet prone to detachment. Further improvements are needed. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a magnet mounting structure and a cosmetic packaging container.

[0005] The magnet mounting structure includes an outer cylinder, an inner cylinder, and a magnet. The inner cylinder is provided with a positioning groove for accommodating the magnet and an anti-detachment part for preventing the magnet from detaching from the positioning groove. The anti-detachment part is movably disposed on the inner cylinder and can move between a first position that restricts the magnet from detaching and a second position that allows the magnet to be removed; The outer cylinder and the inner cylinder are nested together. When the two are assembled, the outer cylinder prevents the anti-detachment part from moving to the second position, thereby locking the anti-detachment part in the first position.

[0006] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0007] Optionally, the inner cylinder is provided with an elastic part for providing a restoring force to the anti-detachment part.

[0008] Optionally, the elastic part is an elastic arm formed on the side wall of the inner cylinder, and the anti-detachment part is disposed on the elastic arm.

[0009] Optionally, the inner wall of the outer cylinder abuts against the anti-detachment part or the elastic part, thereby locking the anti-detachment part in the first position.

[0010] Optionally, the anti-detachment part is configured to move from the second position to the first position, and during assembly, the anti-detachment part is driven to move from the second position to the first position by the sleeve action of the outer cylinder.

[0011] Optionally, the inner cylinder is provided with a locking part to restrict the axial disengagement of the outer cylinder.

[0012] Optionally, the inner cylinder is provided with a positioning part that limits the assembly height of the outer cylinder.

[0013] Optionally, the inner cylinder has a first sidewall and a second sidewall adjacent to each other, and the magnet is disposed at the junction of the first sidewall and the second sidewall.

[0014] Optionally, the anti-detachment part includes a first anti-detachment part and a second anti-detachment part, wherein the first anti-detachment part is disposed on the first side wall and the second anti-detachment part is disposed on the second side wall.

[0015] Optionally, the magnet is fitted to the end of the inner cylinder.

[0016] This application also provides a cosmetic packaging container, including a lid and a base, wherein the base includes the magnet mounting structure described above, and the base is attracted to the lid by the magnet to form a closed cavity.

[0017] In the magnet installation structure of this application, by placing the magnet in the positioning groove and using the limiting effect of the anti-detachment part, the problem of the magnet falling out of the inner cylinder due to accidental drops can be effectively avoided, which significantly improves the stability and reliability of the structure. In addition, the anti-detachment part can be automatically moved from the second position to the first position by simply engaging the outer cylinder and the inner cylinder, realizing "assembly and locking", which simplifies the assembly process and improves production efficiency. Attached Figure Description

[0018] Figure 1 A cross-sectional view of the mounting structure of a magnet according to an embodiment provided in this application; Figure 2 This is a schematic diagram of the inner cylinder structure; Figure 3 for Figure 2 Cross-sectional view of the inner cylinder; Figure 4a A schematic diagram showing the anti-detachment part in the inner cylinder in the second position; Figure 4b for Figure 4a Enlarged view of A in the middle; Figure 5 A schematic diagram showing the structure with the anti-detachment part in the first position after the outer cylinder, inner cylinder and magnet are assembled; Figure 6 This is a schematic diagram of the outer cylinder.

[0019] The annotations in the figure are explained as follows: 100. Outer cylinder; 110. Positioning column; 120. Card convex; 200, Inner cylinder; 201, First side wall; 202, Second side wall; 210, Positioning groove; 211, Positioning rib; 220, Anti-detachment part; 221, First anti-detachment part; 222, Second anti-detachment part; 230, Elastic part; 231, Elastic arm; 232, Opening groove; 240, Engaging part; 250, Positioning part; 300, Magnet; 400, Middle core; 500, Cover. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] In this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this application, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a system, product, or device that includes a series of units is not necessarily limited to those units that are explicitly listed, but may include other units that are not explicitly listed or that are inherent to such products or devices.

[0025] See Figures 1-6 One embodiment of this application provides an installation structure for a magnet 300, including an outer cylinder 100, an inner cylinder 200, and a magnet 300.

[0026] The outer cylinder 100 is fixedly sleeved on the outer periphery of the inner cylinder 200. In actual application scenarios, the outer cylinder 100 or the inner cylinder 200 can be fixedly connected with the middle core 400 and then fastened with the cap 500 to form a cosmetic packaging container, thereby meeting the packaging needs of cosmetics.

[0027] The middle core 400 can adopt an existing structure, which typically includes a storage element, a guide element, and a drive element. The storage element is used to hold the cosmetic, and the guide element and drive element are rotatably engaged. The guide element restricts the circumferential rotation of the storage element. During the rotation of the guide element relative to the drive element, the storage element is driven to rotate axially, thereby realizing the ejection and retraction of the cosmetic.

[0028] For details on the fixing methods of the inner cylinder 200 and the outer cylinder 100, please refer to [link / reference needed]. Figure 2 The inner cylinder 200 is provided with a locking part 240 to restrict the axial disengagement of the outer cylinder 100. In the figure, the locking part 240 is specifically a plurality of protrusions arranged circumferentially along the inner cylinder 200. The protrusions and the inner wall of the outer cylinder 100 are interference fit to achieve a stable locking connection between the inner cylinder 200 and the outer cylinder 100.

[0029] In one embodiment, in order to further improve the accuracy and convenience of assembly, the inner cylinder 200 is provided with a positioning part 250 that limits the assembly height of the outer cylinder 100. The positioning part 250 can provide clear positioning prompts during the assembly process to ensure that the outer cylinder 100 can be accurately installed in the preset position. Figure 2 In the middle, the positioning part 250 is located at the top of the inner cylinder 200. After the outer cylinder 100 is assembled, the positioning part 250 will be flush with the outer surface of the outer cylinder 100. This design not only ensures the assembly accuracy of the installation structure, but also makes the overall appearance flatter and more beautiful, and improves the visual quality of the product. In existing magnetic packaging tubes, magnets 300 are respectively installed on the inner cylinder 200 and the cover 500 to attract each other. When the cover 500 approaches the inner cylinder 200, the magnets 300 located inside both cylinders attract each other due to magnetic force, thereby closing the cover 500 and the inner cylinder 200 and sealing the core 400. However, the existing magnets 300 are generally fixed to the inner cylinder 200 by an interference fit, but this fixing method has the problems of being easy to fall off or difficult to assemble.

[0030] For the above issues, please refer to Figures 1-5 In the installation structure of the magnet 300 of this application, the inner cylinder 200 is provided with a positioning groove 210 for accommodating the magnet 300 and an anti-detachment part 220 for preventing the magnet 300 from falling out of the positioning groove 210. By accurately placing the magnet 300 in the positioning groove 210 and using the limiting effect of the anti-detachment part 220, the problem of the magnet 300 falling out of the inner cylinder 200 due to accidental drops or other situations can be effectively avoided, significantly improving the stability and reliability of the structure. In this embodiment, the magnet 300 is installed on the inner wall of the inner cylinder 200.

[0031] See Figures 2-4b Both ends of the inner cylinder 200 are open, and its cross-sectional shape is not specifically limited; for example, it can be designed as a circle or a quadrilateral according to actual needs. To illustrate the structural details more clearly, this embodiment uses a quadrilateral cross-section of the inner cylinder 200 as an example. This quadrilateral inner cylinder 200 has adjacent first sidewalls 201 and second sidewalls 202, that is, it includes two first sidewalls 201 and two second sidewalls 202, wherein the two first sidewalls 201 are arranged opposite each other, and the two second sidewalls 202 are also arranged opposite each other.

[0032] To ensure a stable closure, the inner cylinder 200 and the lid 500 need to be evenly stressed when they are attracted together. Therefore, at least two magnets 300 are arranged on the inner cylinder 200. Figures 4a-5 In the middle, the magnet 300 is set at the junction of the first side wall 201 and the second side wall 202, that is, at the two opposite corners of the quadrilateral cross section. This arrangement can make the attraction force of the magnet 300 evenly distributed, avoiding the problem of the cover 500 tilting or not closing tightly due to uneven force.

[0033] Meanwhile, in this embodiment, the cross-sectional shape of the magnet 300 can also be flexibly selected, such as a circle or a triangle. In this application, the cross-section of the magnet 300 is specifically designed as a right triangle. The two right-angled sides of the right triangle structure can be closely fitted with the first sidewall 201 and the second sidewall 202 adjacent to the inner cylinder 200, which not only further improves the stability of the magnet 300 in the positioning groove 210, but also ensures that the magnet 300 will not shift its position during assembly and use through the limiting effect of the sidewall, thus ensuring the attraction accuracy.

[0034] In one embodiment, the middle core 400 is fixedly connected to the outer cylinder 100, see [reference]. Figure 6 The outer cylinder 100 is provided with a positioning post 110, and the outer periphery of the positioning post 110 is provided with a locking protrusion 120. The middle core 400 is fixed by cooperating with the positioning post 110 and the locking protrusion 120.

[0035] In one embodiment, the magnet 300 is fitted to the end of the inner cylinder 200 (shown as the top position in the figure), which can minimize the distance between the magnet 300 and the cover 500, making it easier for the two to attract each other.

[0036] In one embodiment, the anti-detachment part 220 is movably disposed on the inner cylinder 200 and is movable between a first position that restricts the magnet 300 from detaching and a second position that allows the magnet 300 to be removed. As shown in the figure, the anti-detachment part 220 is radially movable along the inner cylinder 200. In the first position, the anti-detachment part 220 abuts against the bottom of the magnet 300. When the outer cylinder 100 and the inner cylinder 200 are fitted together and assembled, the outer cylinder 100 prevents the anti-detachment part 220 from moving to the second position, thereby locking the anti-detachment part 220 in the first position. Therefore, the first position is the locked position of the anti-detachment part 220, and the second position is the unlocked position.

[0037] When assembling the magnet 300, the magnet 300 can be placed in the positioning groove 210 of the inner cylinder 200 first, and then the outer cylinder 100 and the inner cylinder 200 are connected to each other for assembly. During the assembly process, under the squeezing action of the outer cylinder 100, the anti-detachment part 220 will deform inward and gradually move from the second position to the first position, finally completing the locking of the magnet 300.

[0038] In one embodiment, the positioning groove 210 is adapted to the shape of the magnet 300. To ensure that the magnet 300 can be stably fixed in the positioning groove 210 and to prevent the magnet 300 from falling off during the movement of the anti-detachment part 220 from the second position to the first position, the inner wall of the positioning groove 210 is also provided with positioning ribs 211 that are interference-fitted with the surface of the magnet 300. Preferably, the positioning ribs 211 are arranged along the axial direction of the inner cylinder 200. Figures 4a-5In the middle, positioning ribs 211 are arranged on the three sides of the positioning groove 210, which can form an interference fit with the three surfaces of the right-angled triangular magnet 300 respectively, further improving the fixing stability of the magnet 300.

[0039] In one embodiment, to achieve a better anti-detachment effect, the anti-detachment part 220 includes a first anti-detachment part 221 and a second anti-detachment part 222. The first anti-detachment part 221 is disposed on the first sidewall 201, and the second anti-detachment part 222 is disposed on the second sidewall 202. As can be seen from the figure, each magnet 300 has two anti-detachment parts at its bottom, making the limiting force on the magnet 300 more uniform.

[0040] Of course, considering that the elastic part 230 can automatically reset from the locked first position to the unlocked second position without the action of the outer cylinder 100, so as to facilitate the subsequent disassembly or replacement of the magnet 300, the inner cylinder 200 is provided with an elastic part 230 for providing restoring force to the anti-detachment part 220.

[0041] For the specific structure of the elastic part 230, see, for example... Figure 2 The elastic part 230 is an elastic arm 231 formed on the side wall of the inner cylinder 200, and the anti-detachment part 220 is disposed on the elastic arm 231. Regarding the structure of the elastic arm 231, as shown in the figure, the side wall of the outer cylinder 100 has several opening slots 232. Specifically, there are three opening slots 232, two of which are arranged opposite each other along the axial direction, and the third opening slot 232 connects to the other two opening slots 232. This design of the opening slots 232 forms the elastic arm 231. In the natural state (i.e., when the anti-detachment part 220 is in the unlocked position of the second position), preferably, see [reference needed]. Figure 4a The outer side of the anti-detachment part 220 protrudes radially relative to the outer wall of the inner cylinder 200, and the height of the radial protrusion is controlled between 0.5mm and 1.0mm, specifically 0.8mm in the figure. At the same time, the inner side of the anti-detachment part 220 is flush with the inner wall of the inner cylinder 200 in the radial direction. This design ensures that the magnet 300 is placed into the positioning slot 210 without any obstruction, greatly reducing the assembly difficulty.

[0042] During the assembly of the outer cylinder 100 and the inner cylinder 200, the inner wall of the outer cylinder 100 abuts against the anti-detachment part 220 or the elastic part 230. In the diagram, the anti-detachment part 220 is positioned at the top of the elastic part 230, and the inner wall of the outer cylinder 100 directly abuts against the anti-detachment part 220. Through continuous compression, the anti-detachment part 220 is driven to gradually move from the second position to the first position, ultimately locking. During this process, the anti-detachment part 220 continuously deforms inward until the outer cylinder 100 and the inner cylinder 200 are fully assembled, and the anti-detachment part 220 is stably positioned in the first position. At this point, the anti-detachment part 220 protrudes outward relative to the inner wall of the inner cylinder 200, and this protruding part abuts against the bottom end of the magnet 300, thus forming a reliable anti-detachment effect.

[0043] In the installation structure of the magnet 300 of this application, by placing the magnet 300 in the positioning groove 210 and using the limiting effect of the anti-detachment part 220, the problem of the magnet 300 falling out of the inner cylinder due to accidental drops can be effectively avoided, which significantly improves the stability and reliability of the structure. In addition, the anti-detachment part 220 can be automatically moved from the second position to the first position by simply engaging the outer cylinder 100 and the inner cylinder 200, realizing "assembly and locking", which simplifies the assembly process and improves production efficiency.

[0044] In one embodiment, the anti-detachment part 220 is configured to move from the second position to the first position. That is, the anti-detachment part 220 can be automatically moved from the second position to the first position simply by the sleeve action of the outer cylinder 100 and the inner cylinder 200, realizing "assembly and locking", which simplifies the assembly process and improves production efficiency.

[0045] This application also discloses a cosmetic packaging container, see [link to relevant documentation] Figure 1 The system includes a cover 500 and a base. The base includes the magnet mounting structure mentioned above. Specifically, the base includes an outer cylinder 100, an inner cylinder 200, and a magnet 300. At the same time, a magnet is also provided on the cover 500 (in the figure, the cover 500 includes an outer cover and an inner cover, and the magnet is provided on the inner cover). The base is attracted to the cover 500 by the magnet 300 to form a closed cavity. The middle core 400 mentioned above can be installed in this closed cavity.

[0046] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0047] The embodiments described above are merely examples 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 modifications and improvements all fall within the protection scope of this application.

Claims

1. A magnet mounting structure, comprising an outer cylinder, an inner cylinder, and a magnet, wherein the inner cylinder is provided with a positioning groove for accommodating the magnet and an anti-detachment part for preventing the magnet from detaching from the positioning groove, characterized in that: The anti-detachment part is movably disposed on the inner cylinder and can move between a first position that restricts the magnet from detaching and a second position that allows the magnet to be removed; The outer cylinder and the inner cylinder are nested together. When the two are assembled, the outer cylinder prevents the anti-detachment part from moving to the second position, thereby locking the anti-detachment part in the first position.

2. The magnet mounting structure according to claim 1, characterized in that, The inner cylinder is provided with an elastic part for providing restoring force to the anti-detachment part.

3. The magnet mounting structure according to claim 2, characterized in that, The elastic part is an elastic arm formed on the side wall of the inner cylinder, and the anti-detachment part is disposed on the elastic arm.

4. The magnet mounting structure according to claim 2 or 3, characterized in that, The inner wall of the outer cylinder abuts against the anti-detachment part or the elastic part, thereby locking the anti-detachment part in the first position.

5. The magnet mounting structure according to claim 1, characterized in that, The anti-detachment part is configured to move from the second position to the first position. During assembly, the anti-detachment part is driven to move from the second position to the first position by the sleeve action of the outer cylinder.

6. The magnet mounting structure according to claim 1, characterized in that, The inner cylinder is provided with a locking part that restricts the axial disengagement of the outer cylinder.

7. The magnet mounting structure according to claim 1, characterized in that, The inner cylinder is provided with a positioning part that limits the assembly height of the outer cylinder.

8. The magnet mounting structure according to claim 1, characterized in that, The inner cylinder has a first sidewall and a second sidewall that are adjacent to each other, and the magnet is disposed at the junction of the first sidewall and the second sidewall.

9. The magnet mounting structure according to claim 8, characterized in that, The anti-detachment part includes a first anti-detachment part and a second anti-detachment part, wherein the first anti-detachment part is disposed on the first side wall and the second anti-detachment part is disposed on the second side wall.

10. The magnet mounting structure according to claim 1, characterized in that, The magnet is assembled at the end of the inner cylinder.

11. A cosmetic packaging container, comprising a lid and a base, characterized in that, The base includes a magnet mounting structure as described in any one of claims 1 to 10, wherein the base is attracted to the cover by the magnet to form a closed cavity.

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