Cosmetic packaging tube

Abstract

The application discloses a cosmetic packaging tube, comprising a front tube body, a rear tube body rotatably connected with the front tube body, a moving body, a driving structure and a positioning feedback mechanism. The driving structure is arranged between the rear tube body and the moving body, and is used for converting the rotary motion of the rear tube body relative to the front tube body into the linear motion of the moving body along the axial direction, so that the cosmetic is extended or retracted; the positioning feedback mechanism comprises elastic members and positioning portions arranged on the front tube body and the rear tube body respectively; when the front tube body and the rear tube body are relatively rotated to a preset position, the elastic members and the positioning portions are engaged, and tactile and / or audible feedback is provided; when the rotation is continued, the elastic members are separated from the positioning portions by overcoming the elastic force. When the application is rotated to the predetermined position, the elastic members and the positioning portions are accurately engaged, and the tactile and / or audible feedback is synchronously provided, so that the accurate control in the rotation process of the cosmetic packaging tube is realized, and then the personalized appearance and the use reliability of the packaging tube can be improved, and the use requirement and the experience expectation of a user are met.

Description

Technical Field

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

[0002] Existing cosmetic packaging tubes generally include a base, a top cover, and a central core located between the base and the top cover. The central core includes a storage element, a guide element, and a drive element. The guide element is used to restrict the circumferential movement of the storage element, and the drive element has a spiral groove inside. The storage element cooperates with the drive element through the guide element and moves axially.

[0003] However, existing cosmetic packaging tubes generally suffer from the following drawbacks: First, the tubes mostly adopt a conventional circular design, which makes it difficult to adapt to the market's demand for customized irregular structures (such as elliptical, polygonal, or irregular shapes), limiting the improvement of product appearance diversity and adaptability to specific usage scenarios; Second, in terms of core rotation control, existing structures lack effective mechanical coordination and limiting mechanisms, making it impossible to achieve precise control of the full rotation, resulting in fluctuations in extrusion volume, affecting the user experience, and failing to meet the requirements of mid-to-high-end cosmetics for precise packaging functions.

[0004] Based on the aforementioned deficiencies in the existing technology, it is necessary to improve the existing cosmetic packaging tubes to adapt to the design requirements of irregularly shaped tubes, achieve precise control of the rotation of the central core, thereby enhancing the personalized appearance and reliability of the packaging tubes and better meeting market demands. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a cosmetic container.

[0006] Cosmetic packaging tubes, including: Fore-tube body; The rear tube body is rotatably connected to the front tube body; A movable body is disposed within a cavity formed by the front tube and the rear tube, and is used to carry cosmetics; A drive structure is provided between the rear tube and the moving body to convert the rotational motion of the rear tube relative to the front tube into the linear motion of the moving body along the axial direction, so as to extend or retract the cosmetic. The positioning feedback mechanism includes at least one elastic element disposed on one of the front tube and the rear tube, and at least one positioning part disposed on the other; when the front tube and the rear tube rotate relative to each other to a preset position, the elastic element engages with the positioning part and provides tactile and / or auditory feedback; when rotation continues, the elastic element disengages from the positioning part against the elastic force.

[0007] 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.

[0008] Optionally, the drive structure includes an internal thread on the inner wall of the rear tube and an external thread on the outer wall of the moving body, wherein the internal thread engages with the external thread.

[0009] Optionally, the front tube body is provided with a limiting structure to restrict the circumferential rotation of the moving body.

[0010] Optionally, the limiting structure includes a limiting hole or a limiting groove provided on the front tube body, and the moving body is provided with a guide portion that cooperates with the limiting hole or the limiting groove.

[0011] Optionally, the elastic element is an elastic claw integrally extending from the wall of the front tube or the rear tube to the inner or outer side; the positioning part is a groove or protrusion structure provided at a corresponding position on another tube, and the elastic claw can engage or disengage with the groove or protrusion structure.

[0012] Optionally, the positioning feedback mechanism includes a plurality of positioning parts evenly distributed along the circumference, and the elastic element engages with one of the positioning parts once for each predetermined relative rotation of the front tube and the rear tube.

[0013] Optionally, the predetermined angle is 180 degrees.

[0014] Optionally, the outer contours of the cross-sections of the front tube and the rear tube are non-circular.

[0015] Optionally, the front tube or the rear tube is provided with a stop portion for limiting the axial movement limit position of the moving body, so as to ensure that when the moving body is in the limit position, the non-circular cross-sectional outer contours of the front tube and the rear tube can be completely aligned.

[0016] Optionally, each time the elastic element and the positioning part engage, the non-circular cross-sectional outer contours of the front tube and the rear tube can be completely aligned.

[0017] Optionally, one of the front tube and the rear tube is provided with an elastic portion, which abuts against the other to provide frictional resistance during relative rotation.

[0018] Optionally, the rear tube body includes an inner tube section and an outer tube section, the driving structure is provided between the inner tube section and the moving body, and the positioning feedback mechanism is formed between the outer tube section and the front tube body.

[0019] The cosmetic packaging tube of this application has a positioning feedback mechanism between the front and rear tube bodies. When the two tube bodies rotate relative to each other to a predetermined position, the elastic element in the positioning feedback mechanism can precisely engage with the positioning part, and simultaneously provide tactile and / or auditory feedback. This enables precise control of the rotation process of the cosmetic packaging tube, thereby improving the personalized appearance and reliability of the packaging tube. Especially for cosmetic packaging tubes with a non-circular cross-sectional outer contour, this structure can better ensure its performance and thus more fully meet the user's needs and experience expectations. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a cosmetic packaging tube according to an embodiment provided in this application; Figure 2 An exploded view of a cosmetic packaging tube according to an embodiment provided in this application; Figure 3 A cross-sectional view of a cosmetic packaging tube provided for this application; Figure 4 A cross-sectional view of a cosmetic packaging tube provided for this application from another perspective; Figure 5a This is a schematic diagram of the lower cylinder in the front tube body; Figure 5b for Figure 5a Cross-sectional view of the lower and middle cylinder; Figure 6a This is a schematic diagram of the rear tube structure; Figure 6b for Figure 6a Cross-sectional view of the middle and rear tube body.

[0021] The annotations in the figure are explained as follows: 100. Front tube body; 110. Upper cylinder; 120. Lower cylinder; 121. Elastic element; 122. Limiting hole; 124. Upper part; 125. Lower part; 130. Annular groove; 200. Rear tube body; 210. Inner tube section; 211. Internal thread; 212. Elastic part; 220. Outer tube section; 230. Positioning part; 240. Stop part; 250. Protrusion; 300, Moving body; 301, Cup body; 302, Connecting cylinder; 310, External thread; 320, Guide part. Detailed Implementation

[0022] 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.

[0023] 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 there may be an intervening component. When a component is said to be "set on" another component, it can be directly set on the other component or there may be an intervening component.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] See Figures 1-4 One embodiment of this application provides a cosmetic packaging tube as packaging material for ointment-like cosmetics (such as lipsticks, lip glosses, etc.). The cosmetic packaging tube includes a front tube body 100, a rear tube body 200, a moving body 300, a driving structure, and a positioning feedback mechanism.

[0028] The rear tube 200 is rotatably connected to the front tube 100. In this application, the front tube 100 and the rear tube 200 are relative concepts; both are axially gripable parts. Figure 1 For example, the top part is the front tube 100, and the bottom part is the rear tube 200. In order to limit the axial movement of the two, an annular groove 130 can be provided on the front tube 100, and a corresponding protrusion 250 can be provided on the rear tube 200. The annular groove 130 and the protrusion 250 cooperate to achieve axial limitation.

[0029] The movable body 300 is used to hold cosmetics, which in this context refer to cream-like cosmetics such as lipsticks and lip balms. The movable body 300 is disposed within a cavity formed by a front tube 100 and a rear tube 200. In one embodiment, the movable body 300 includes a cup 301 for holding cosmetics and a connecting tube 302. The connecting tube 302 has a hollow structure and communicates with the cup 301. In this embodiment, the cup 301 and the connecting tube 302 are an integral structure. This design improves the stability of the overall structure and simplifies the assembly process.

[0030] The drive structure is located between the rear tube 200 and the moving body 300, and is used to convert the rotational motion of the rear tube 200 relative to the front tube 100 into the linear motion of the moving body 300 along the axial direction, so that the cosmetic can be extended or retracted.

[0031] Since the driving structure relies on the conversion between rotational and linear motion, to prevent the moving body 300 from subsequently rotating circumferentially in sync with the tube 200 and affecting the motion conversion effect, a limiting structure is provided on the front tube 100 to restrict the circumferential rotation of the moving body 300. In one embodiment, the limiting structure includes a limiting hole or limiting groove on the front tube 100, and a guide portion 320 (the guide portion 320 in the figure is the connecting cylinder 302 mentioned above) that cooperates with the limiting hole or limiting groove. Through the cooperation of the guide portion 320 with the limiting hole or limiting groove, the circumferential movement of the moving body 300 can be effectively constrained. For example, in the figure, a limiting hole 122 is provided on the front tube 100. Based on the circumferential limiting requirement, the cross-section of the limiting hole 122 needs to be designed as a non-circular structure.

[0032] Regarding the specific implementation of the drive structure, in one embodiment, the drive structure includes an internal thread 211 provided on the inner wall of the rear tube 200 and an external thread 310 provided on the outer wall of the moving body 300, wherein the internal thread 211 and the external thread 310 are engaged. Figure 2 In the middle, the external thread 310 is set at the bottom end of the connecting cylinder 302. When the rear tube 200 rotates relative to the front tube 100, the moving body 300 can be driven to move axially through the thread engagement.

[0033] For details on the structure of the front tube body 100, please refer to [link / reference]. Figure 2 ~ Figure 5b The front tube 100 includes an upper tube 110 and a lower tube 120. The lower tube 120 has an upper part 124 and a lower part 125 that is narrower than the upper part 124. The upper tube 110 is fixed to the outer periphery of the upper part 124, for example, by direct bonding with adhesive. The rear tube 200 is axially fixed to the lower part 125. The cup body 301 moves axially inside the upper tube 110. The aforementioned limiting hole 122 is provided in the lower tube 120. After the connecting tube 302 passes through the limiting hole 122, it is connected and engaged with the external thread 310 of the rear tube 200.

[0034] To improve the accuracy and user experience of operation, a positioning feedback mechanism is provided between the front tube 100 and the rear tube 200. The positioning feedback mechanism includes at least one elastic element 121 on one of the front tube 100 and the rear tube 200, and at least one positioning part 230 on the other.

[0035] Regarding the structure of the elastic element 121, the elastic element 121 is an elastic claw that extends integrally from the wall of the front tube 100 or the rear tube 200 to the inside or outside; the positioning part 230 is a groove or protrusion structure provided at the corresponding position of another tube, and the elastic claw can engage or disengage with the groove or protrusion structure.

[0036] For ease of explanation, for example Figures 4-5b In the middle, the elastic part 212 is provided at the lower part 125 of the front tube body 100, and the positioning part 230 is provided at the rear tube body 200. Correspondingly, the elastic part 212 is an elastic claw that extends integrally from the side wall of the front tube body 100 to the outside, and the positioning part 230 is a corresponding groove provided on the rear tube body 200.

[0037] To facilitate the assembly of the front tube 100 and the rear tube 200, the groove extends to the top of the rear tube 200. During assembly, the elastic claw can extend from the top of the rear tube 200 into the groove until the front tube 100 and the rear tube 200 are axially limited.

[0038] When the current tube body 100 and the rear tube body 200 rotate relative to each other to a preset position, the elastic element 121 engages with the positioning part 230, providing tactile and / or auditory feedback. Specifically, when the elastic claw slides into the groove and resets, the moment it expands radially outward and engages with the groove, a distinct "click" sound (auditory feedback) and a slight jolt (tactile feedback) are produced, clearly indicating to the user that the rotation has reached the desired position.

[0039] As rotation continues, the elastic element 121 overcomes the elastic force and disengages from the positioning part 230. That is, the user needs to apply a slightly larger force to cause the elastic claw to undergo radial contraction elastic deformation, disengaging from the positioning part 230, thereby enabling the two to continue rotating relative to each other.

[0040] To diversify the feedback points, the positioning feedback mechanism includes multiple positioning parts 230 evenly distributed along the circumference. Each time the front tube 100 and the rear tube 200 rotate relative to each other by a predetermined angle, the elastic element 121 engages with one positioning part 230 once.

[0041] In one embodiment, the predetermined angle is 180 degrees. Therefore, for every 180 degrees that the front tube 100 and the rear tube 200 rotate relative to each other, the elastic element 121 will engage with a positioning part 230 once, providing feedback. Considering the overall stability during rotation, this application provides two elastic elements 121 and corresponding positioning parts 230, each arranged symmetrically.

[0042] To further enhance the product's quality, the outer contours of the front tube 100 and rear tube 200 are designed with non-circular shapes, such as ellipses or rhombuses. This ensures that the appearance remains neat at all times, when the elastic element 121 and the positioning part 230 are engaged.

[0043] In one embodiment, the front tube 100 or the rear tube 200 is provided with a stop 240 for limiting the axial movement limit position of the moving body 300, for example... Figure 6b In the middle, the stop part 240 is located at the bottom of the internal thread 211. Its function is to ensure that when the moving body 300 moves to the bottom limit position of the internal thread 211, the non-circular cross-sectional outer contours of the front tube body 100 and the rear tube body 200 can be completely aligned.

[0044] Furthermore, to ensure that the non-circular cross-sectional outer contours of the front tube 100 and the rear tube 200 are perfectly aligned when the movable body 300 is at the top limit position of the internal thread 211, this application sets the travel stroke of the movable body 300 to a slightly larger than an integer multiple of the thread pitch, preferably an integer multiple, so that when the elastic element 121 and the positioning part 230 engage, the movable body 300 is precisely at the top limit position. Through the combination of the stop part 240 and the travel stroke design, it can be ensured that the non-circular cross-sectional outer contours of the front tube 100 and the rear tube 200 are perfectly aligned when the movable body 300 is at both the top and bottom limit positions.

[0045] In one embodiment, see Figures 3-4 as well as Figures 6a-6b The rear tube body 200 includes an inner tube section 210 and an outer tube section 220. A drive structure is provided between the inner tube section 210 and the moving body 300, and a positioning feedback mechanism is formed between the outer tube section 220 and the front tube body 100. Specifically, an internal thread 211 is provided on the inner tube section 210, which, together with the moving body 300, constitutes the drive structure; while the positioning feedback mechanism is located between the outer tube section 220 and the front tube body 100. This separation of inner and outer sections allows the drive and positioning functions to operate independently without interference, resulting in better stability.

[0046] In one embodiment, one of the front tube 100 and the rear tube 200 is provided with an elastic portion 212, which abuts against the other to provide frictional resistance during relative rotation, thereby enhancing the user's handling feel. Preferably, multiple elastic portions 212 are arranged circumferentially to ensure uniform force distribution. See also Figure 3 and Figure 6b The elastic part 212 is provided on the outer surface of the inner tube part 210. When the front tube body 100 and the rear tube body 200 rotate relative to each other, the elastic part 212 abuts and rubs against the tube wall of the front tube body 100.

[0047] In one embodiment, see Figures 4-5b The annular groove 130 is provided on the inner wall of the lower cylinder 120, and the protrusion 250 is provided on the outer wall of the inner tube portion 210. In order to avoid interference between the protrusion 250 and the elastic portion 212 during rotation, the protrusion 250 and the elastic portion 212 are spaced apart in the circumferential direction and staggered in the axial direction.

[0048] During assembly, the connecting cylinder 302 of the movable body 300 can be inserted into the limiting hole 122 of the lower cylinder 120 first, and then the connecting cylinder 302 can be screwed into the rear tube 200 until the front tube 100 and the rear tube 200 are axially fixed. Then the upper cylinder 110 and the lower cylinder 120 are fixedly connected, and the installation is completed.

[0049] The cosmetic packaging tube of this application features a positioning feedback mechanism between the front tube body 100 and the rear tube body 200. When the two rotate relative to each other to a predetermined position, the elastic element 121 in the positioning feedback mechanism precisely engages with the positioning part 230, simultaneously providing tactile and / or auditory feedback. This design achieves precise control over the rotation process of the cosmetic packaging tube, effectively improving the personalized appearance and reliability of the packaging tube. Especially for cosmetic packaging tubes with a non-circular cross-sectional outline, this structure better ensures their performance, thereby more fully meeting the user's needs and expectations.

[0050] 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.

[0051] 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 cosmetic packaging tube, characterized in that, include: Fore-tube body; A rear tube body is rotatably connected to the front tube body; a movable body is disposed within a cavity formed by the front and rear tube bodies for carrying cosmetics; a drive structure is disposed between the rear tube body and the movable body for converting the rotational motion of the rear tube body relative to the front tube body into the linear motion of the movable body along the axial direction, so as to extend or retract the cosmetics; a positioning feedback mechanism includes at least one elastic element disposed on one of the front and rear tube bodies, and at least one positioning part disposed on the other; when the front and rear tube bodies rotate relative to each other to a preset position, the elastic element engages with the positioning part and provides tactile and / or auditory feedback; when rotation continues, the elastic element disengages from the positioning part against elastic force.

2. The cosmetic packaging tube according to claim 1, characterized in that, The drive structure includes an internal thread on the inner wall of the rear tube and an external thread on the outer wall of the moving body, wherein the internal thread and the external thread mesh with each other; the front tube is provided with a limiting structure that restricts the circumferential rotation of the moving body.

3. The cosmetic packaging tube according to claim 1, characterized in that, The elastic element is an elastic claw that extends integrally from the wall of the front tube or the rear tube to the inside or outside; the positioning part is a groove or protrusion structure provided at the corresponding position of another tube, and the elastic claw can engage or disengage with the groove or protrusion structure.

4. The cosmetic packaging tube according to claim 1, characterized in that, The positioning feedback mechanism includes a plurality of positioning parts evenly distributed along the circumference. Each time the front tube and the rear tube rotate relative to each other by a predetermined angle, the elastic element engages with one of the positioning parts once.

5. The cosmetic packaging tube according to claim 4, characterized in that, The predetermined angle is 180 degrees.

6. The cosmetic packaging tube according to claim 1, characterized in that, The outer contours of the cross-sections of the front tube and the rear tube are non-circular.

7. The cosmetic packaging tube according to claim 6, characterized in that, The front tube or the rear tube is provided with a stop portion for limiting the axial movement limit position of the moving body, so as to ensure that when the moving body is in the limit position, the non-circular cross-sectional outer contours of the front tube and the rear tube can be completely aligned.

8. The cosmetic packaging tube according to claim 6, characterized in that, Each time the elastic element and the positioning part engage, the outer contours of the non-circular cross sections of the front tube and the rear tube can be perfectly aligned.

9. The cosmetic packaging tube according to claim 1, characterized in that, One of the front tube and the rear tube is provided with an elastic part, which abuts against the other to provide frictional resistance during relative rotation.

10. The cosmetic packaging tube according to claim 1, characterized in that, The rear tube body includes an inner tube section and an outer tube section. The driving structure is provided between the inner tube section and the moving body, and the positioning feedback mechanism is formed between the outer tube section and the front tube body.

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