Carrier components and packaging tubes for stick-shaped cosmetics

Abstract

This application discloses a support component and packaging tube for stick-shaped cosmetics. The support component for stick-shaped cosmetics includes a storage element and a support element. The storage element has a storage space for receiving the stick-shaped cosmetic and is provided with a first groove extending axially. The support element is made of metal and is movably assembled within the storage space. The support element includes a support portion for supporting the stick-shaped cosmetic and a guide portion that extends into and slides into the first groove. The guide portion has an inner surface and an outer surface, with a partial recess on the inner surface and a connecting foot formed on the corresponding outer surface. The support element of this application is made of metal, has a guide portion that slides into the first groove, and a connecting foot is formed by deformation in a portion of the guide portion. Compared to traditional structures, this overcomes the problem of insufficiently long connecting feet due to manufacturing limitations, reduces manufacturing difficulty, and improves the strength of the connecting foot.

Description

Technical Field

[0001] This application relates to the field of packaging tube technology, and in particular to a carrier component and packaging tube for stick-shaped cosmetics. Background Technology

[0002] The packaging tube for ointment-type cosmetics consists of a top cap, a base, and a central core. The base and the central core are fixedly connected, and the top cap and base cooperate to seal the central core. The central core typically includes a retractable storage element, a drive element, and a guide element. The storage element includes a cylindrical container for holding the cosmetics. However, existing packaging tubes become unusable after the cosmetics are used up to the opening of the cylindrical container, and the portion embedded in the container is discarded, resulting in low utilization.

[0003] To improve the utilization rate of ointments, packaging tubes that allow the ointment to be used up have been introduced on the market. For example, document CN118078037A discloses a packaging tube that allows the ointment to be used up, including: a storage element, a pushing element, a driving element, and a guiding element. The storage element is used to hold the ointment and has a first guide groove. The pushing element is movably disposed inside the storage element and has a first protrusion passing through the first guide groove. A damping structure is provided between the pushing element and the storage element to restrict their axial relative movement. The driving element has a spiral groove that cooperates with the first protrusion. The guiding element is rotatably engaged with the driving element and has a second guide groove that extends axially to allow the first protrusion to pass through and restrict the circumferential rotation of the storage element. When the storage element reaches its limit position, the pushing element can overcome the resistance of the damping structure and continue to move axially.

[0004] The first protrusion of the aforementioned pushing element can pass through the first guide groove and the second guide groove and then cooperate with the spiral groove. However, when the pushing element is made of metal, due to the limitations of the material and process, the length of the first protrusion is insufficient, making it difficult to pass through the first guide groove and the second guide groove and then cooperate with the spiral groove. Therefore, further improvement is needed. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a carrier component and packaging tube for stick-shaped cosmetics.

[0006] Carrier components for stick-shaped cosmetics include:

[0007] A storage element having a storage space for receiving the stick-shaped cosmetic and being provided with a first groove extending axially;

[0008] The support element is made of metal and is movably assembled within the storage space. The support element includes a support portion that supports the rod-shaped cosmetic and a guide portion that extends into and slides into the first groove. The guide portion is provided with a connecting foot that protrudes radially outward. The guide portion has an inner surface and an outer surface. The inner surface is partially recessed, and the corresponding outer surface protrudes outward to form the connecting foot.

[0009] 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.

[0010] Optionally, the support element is a cylindrical structure including circumferentially extending sidewalls that form the guide portion.

[0011] Optionally, the sidewall is configured with a positioning portion that fits with the inner wall of the storage element through a gap, and the guide portion, the positioning portion, and the sidewall are at the same height.

[0012] Optionally, the inner wall of the storage element is provided with axially arranged ribs, and the side wall is configured with a recess to avoid the ribs, the recess being arranged between the positioning part and the guide part.

[0013] Optionally, the support element includes an end wall that extends radially to form the support portion.

[0014] Optionally, the support element is constructed entirely of deformed metal sheet.

[0015] Optionally, the circumferential dimension of the connecting foot is smaller than the circumferential dimension of the guide portion, and / or the axial dimension of the connecting foot is smaller than the axial dimension of the guide portion.

[0016] Optionally, the storage element has a damping portion that interferes with the support element.

[0017] Optionally, the damping part is disposed on both sides of the slide groove and is interference-fitted with the guide part.

[0018] Optionally, the support element has a starting position and an ending position relative to the storage element, and the damping part always acts on the guide part when the support element moves between the starting position and the ending position.

[0019] Optionally, the first chute, the guide portion, and the connecting foot are arranged in pairs.

[0020] This application also discloses a packaging tube, characterized in that it includes a guide element, a drive element, and the aforementioned load-bearing assembly. The guide element has a second groove extending axially, and the inner wall of the drive element is provided with an internal thread. The connecting leg passes through the second groove and is adapted to the internal thread. When the drive element rotates relative to the guide element, it drives the load-bearing assembly to move axially. Both the guide element and the drive element are made of metal.

[0021] Optionally, the driving element has a limiting portion that defines the highest position of the storage element.

[0022] Optionally, the storage element has a damping portion that is interference-fitted with the support element. When the storage element reaches its highest position, the driving element overcomes the resistance of the damping portion to drive the support element to continue moving upward.

[0023] The support element of this application is made of metal and has a guide portion that slides with the first groove. A connecting foot is formed by deformation in a part of the guide portion. Compared with the traditional structure, this overcomes the problem that the connecting foot cannot be processed to a sufficient length due to process limitations, reduces the processing difficulty, and improves the strength of the connecting foot. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of a packaging tube according to an embodiment provided in this application;

[0025] Figure 2 A cross-sectional view of a packaging tube provided for this application;

[0026] Figure 3a This is a schematic diagram of the supporting component.

[0027] Figure 3b A schematic diagram illustrating the manufacturing process of the supporting components;

[0028] Figure 4 This is a cross-sectional view of the supporting component;

[0029] Figure 5 This is a structural diagram of the storage components;

[0030] Figure 6a This is a structural schematic diagram of the supporting element in the load-bearing assembly at the initial position;

[0031] Figure 6b This is a structural schematic diagram of the supporting element in the load-bearing assembly at the termination position;

[0032] Figure 7a A schematic diagram of a structure where the load-bearing component is located at the bottom of the guiding element;

[0033] Figure 7bA schematic diagram of the structure when the housing element and the support element move together to the extreme position at the top of the internal thread;

[0034] Figure 7c This is a schematic diagram of the structure when the supporting element continues to move upward relative to the housing element to its limit position.

[0035] The annotations in the figure are explained as follows:

[0036] 100. Storage element; 110. First slide groove; 111. Cut groove; 120. Protruding rib; 120a. Protruding rib; 120b. Protruding rib; 130. Damping part; 140. Limiting step;

[0037] 200, Support element; 201, Side wall; 202, Positioning part; 203, Recessed part; 204, End wall; 210, Support part; 220, Guide part; 230, Connecting foot; 231, External thread;

[0038] 300, guiding element; 310, second slide rail; 320, positioning groove;

[0039] 400, driving element; 410, internal thread; 420, limiting part. Detailed Implementation

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] See Figures 1-2 This application discloses a packaging tube, which mainly includes a driving element 400, a guiding element 300 and a carrying component. For ease of understanding, the packaging tube is defined to have a top end and a bottom end, wherein the top end is used to receive cosmetics and the bottom end is used for support and holding.

[0046] In one embodiment, both the driving element 400 and the guiding element 300 are cylindrical structures. The inner wall of the driving element 400 is provided with an internal thread 410, and it is sleeved on the outside of the guiding element 300. The guiding element 300 has a second sliding groove 310 extending axially. An axial limiting mechanism is provided between the guiding element 300 and the driving element 400, allowing them to rotate relative to each other circumferentially, but remaining relatively fixed axially. For example, as shown in the figure, the guiding element 300 is provided with an annular positioning groove 320. After the driving element 400 is sleeved on the guiding element 300, a roller is used to partially deform the driving element 400 so that it engages with the positioning groove 320 to achieve axial fixation.

[0047] The carrier component is placed inside the guide element 300 and partially forms a connecting foot 230. The connecting foot 230 passes through the second slide groove 310 and engages with the internal thread 410. When the drive element 400 rotates relative to the guide element 300, it can drive the carrier component to move axially, thereby pushing the cosmetic out of the packaging tube or retracting it into the packaging tube.

[0048] Regarding the carrier component, see Figures 1 to 6b One embodiment of this application provides a carrier component for stick-shaped cosmetics, used to carry cosmetics such as lipsticks and lip glosses, including a storage element 100 and a support element 200.

[0049] The storage element 100 is made of plastic and has a roughly tubular structure with open ends. It has an internal storage space for accepting stick-shaped cosmetics. A first groove 110 extending axially is provided on the peripheral wall of the storage element 100. To facilitate the assembly of the support element 200 with the first groove 110, one end of the first groove 110 has a notch 111 extending to the end of the storage element 100.

[0050] In one embodiment, see Figure 5 The first groove 110 includes a top end and a bottom end opposite to each other, and the notch 111 extends from the bottom end of the first groove 110 to the bottom end of the storage element 100.

[0051] The support element 200 is used to support the stick-shaped cosmetic and is movably assembled within the storage space, allowing it to slide relative to the storage element 100 along the axial direction of the storage element 100. In one embodiment, the support element 200 is made of metal and includes a support portion 210 for supporting the stick-shaped cosmetic and a guide portion 220 that extends into and slides into the first groove 110. The guide portion 220 and the first groove 110 slide into each other, allowing the support element 200 to move stably along the axial direction. Multiple first grooves 110 and corresponding guide portions 220 are provided and evenly arranged circumferentially to make the support element 200 slide more smoothly within the storage element 100.

[0052] During assembly, the notch 111 can be opened manually, and the bottom of the storage element 100 expands radially accordingly. The support element 200 can then be inserted into the storage space. When the guide 220 and the first slide 110 are aligned, the guide 220 can easily extend into the first slide 110.

[0053] In one embodiment, the outer surface of the guide portion 220 is flush with the outer surface of the receiving element 100, so that the supporting component can be completely attached to the guide element 300, ensuring the smoothness of movement.

[0054] In one embodiment, see 2~ Figure 3a The guide portion 220 has an inner surface and an outer surface. The inner surface has a partial recess, and correspondingly, the outer surface convexes radially outward to form a connecting foot 230. The connecting foot 230 passes through the second groove 310 and is adapted to the internal thread 410. Furthermore, the surface of the connecting foot 230 has multiple external threads 231. The external threads 231 are embedded in the internal threads 410, thereby dispersing the contact stress between the connecting foot 230 and the internal threads 410, preventing excessive local deformation, and enhancing the stability of the sliding of the load-bearing component.

[0055] The connecting foot 230 is formed by partial deformation of the guide portion 220. The circumferential dimension of the connecting foot 230 is smaller than the circumferential dimension of the guide portion 220, and the axial dimension of the connecting foot 230 is smaller than the axial dimension of the guide portion 220. Preferably, the connecting foot 230 is located in the middle of the guide portion 220.

[0056] The load-bearing component of this application has a support portion 210 and a guide portion 220 on the support element 200. The guide portion 220 extends into the first slide groove 110 and slides therewith. At the same time, the outer surface of the guide portion 220 is constructed with a connecting foot 230. During assembly, the connecting foot 230 only needs to pass through the second slide groove 310. Compared with the traditional design, it overcomes the problem that the connecting foot 230 cannot be processed to a sufficient length due to process limitations, reduces the processing difficulty, and improves the strength of the connecting foot 230.

[0057] In one embodiment, to achieve better stability, the first groove 110, the guide portion 220, and the connecting foot 230 are arranged in pairs. Preferably, they are arranged symmetrically.

[0058] In one embodiment, both the guide element 300 and the drive element 400 are made of metal. On the one hand, this facilitates recycling. On the other hand, the internal thread 410 of the metal can ensure the precision of the fit with the external thread 231 of the metal. The internal thread 410 can be formed by cutting the metal, and the external thread 231 can be formed by the expansion and deformation of the metal.

[0059] In one embodiment, the support element 200 has a cylindrical structure, including a circumferentially extending sidewall 201 that forms a guide portion 220. The height of the receiving element 100 is greater than the height of the sidewall 201, allowing the support element 200 to slide smoothly within the receiving element 100. The support element 200 also includes an end wall 204 that extends radially to form a support portion 210. Preferably, the end wall 204 is located at the top of the support element 200 so that when the support element 200 slides relative to the receiving element 100 within the first groove 110 to its top limit position, the end wall 204 can push out the stick-shaped cosmetic to the maximum extent, avoiding waste due to residue.

[0060] In one embodiment, to prevent the guide portion 220 from wobbling within the first groove 110, the sidewall 201 is configured with a positioning portion 202 that engages with the inner wall of the receiving element 100. The positioning portion 202 allows the guide portion 220 to move along a predetermined track to avoid wobbling. From a top view, the radial distance between the two guide portions 220 is greater than the radial distance between the two positioning portions 202. In one embodiment, the guide portion 220, the positioning portion 202, and the sidewall 201 are at the same axial height.

[0061] For the structure of the positioning part 202, please refer to Figures 2-4The inner wall of the storage element 100 is provided with axially arranged protruding ribs 120, and the side wall 201 is constructed with recesses 203 to avoid the protruding ribs 120. The recesses 203 are arranged between the positioning part 202 and the guide part 220, and there are multiple sets of them. In the figure, the guide part 220 and the connecting foot 230 are arranged in pairs. Therefore, there are a total of 4 sets of protruding ribs 120. The cross section of the storage element 100 is approximately cross-shaped.

[0062] In one embodiment, each group of ribs 120 may have multiple ribs, for example... Figure 4 In the middle, each group of ribs 120 is provided with 3 ribs. The radial length of the middle rib 120a is longer, while the radial length of the two side ribs 120b is relatively shorter. The rib 120a dominates the direction, while the two side ribs 120b assist in restricting the rotational degree of freedom to prevent the guide part 220 from tilting or swaying.

[0063] In one embodiment, the support element 200 is constructed by deformation of a metal sheet (specifically, metal expansion molding), the details of which can be found in [reference needed]. Figure 3b First, a circular metal sheet is stamped to obtain a circumferentially extending sidewall 201 (at this time, a guide portion 220, a positioning portion 202, and a recessed portion 203 are stamped out) and a radially spreading endwall 204. Then, a second stamping is performed on the inner surface of the sidewall 201 to obtain a radially protruding connecting foot 230. Then, a third stamping is performed on the inner surface of the connecting foot 230 to obtain a connecting foot 230 with an external thread 231. Finally, the support element 200 is cut to the required height.

[0064] See Figure 5 and Figure 7c To prevent the supporting component from rotating out of the driving element 400, the driving element 400 has a limiting portion 420 that defines the highest position of the receiving element 100. In one embodiment, the limiting portion 420 is located at the top of the driving element 400, specifically as an inwardly turned-up edge. Correspondingly, the top of the receiving element 100 has a limiting step 140 that abuts against the bottom end of the inwardly turned-up edge when the supporting component rotates to the highest position of the driving element 400, thereby limiting its position.

[0065] In the initial stage, when the driving element 400 rotates relative to the guiding element 300, the entire driving support assembly moves axially, thereby pushing out or retracting the cosmetic. However, once the cosmetic has been used to a certain extent, even if the support assembly is moved to its highest position, the cosmetic will become unusable.

[0066] See Figures 5-6bCosmetics inevitably end up in the storage space. To make full use of this space and avoid waste, the storage element 100 has a damping part 130 that is interference-fitted with the support element 200. The damping part 130 ensures that the storage element 100 and the support element 200 move synchronously in the initial stage. Only when the supporting component moves to its highest position can the storage element 100 stop moving under the action of the limiting part 420. However, the support element 200 can continue to move upward under the action of the driving element 400, thereby pushing out the remaining cosmetics.

[0067] The support element 200 has a starting position relative to the receiving element 100 (located at the bottom end of the first groove 110, see details). Figure 6a ) and the termination position (located at the top of the first slide 110, see details) Figure 6b When the support element 200 moves between the starting position and the ending position, the damping part 130 always acts on the guide part 220. During this process, the damping part 130 has an anti-slip function to prevent the storage element 100 from sliding down.

[0068] In one embodiment, the damping part 130 is disposed on the two groove walls of the first groove 110, specifically as two protrusions arranged opposite to each other.

[0069] In one embodiment, the damping part 130 is disposed at the middle position of the two side walls 201 of the first slide groove 110.

[0070] In one embodiment, see Figure 6a and Figure 6b When the support element 200 is in the initial position, the bottom end of the damping part 130 abuts against the top end of the support element 200; when the support element 200 is in the final position, the top end of the damping part 130 abuts against the bottom end of the support element 200.

[0071] When assembling the packaging tube of this application, the support element 200 is first placed into the storage element 100 to assemble a carrier component. Then, the carrier component is placed into the guide element 300 along the second slide groove 310. Finally, the connecting leg 230 of the carrier component is engaged with the internal thread 410 and rotated downward to the limit position. Finally, the drive element 400 and the guide element 300 are fixed with a roller, thus realizing the installation of the packaging tube.

[0072] For specific usage, please refer to Figures 7a-7c The drive guide element 300 and drive element 400 rotate relative to each other. Under the action of the connecting foot 230 and the internal thread 410, the bearing assembly moves axially towards the top. At this time, the support element 200 is always in the starting position (under the action of the damping part 130, the support element 200 drives the storage element 100 to move upward together) until the storage element 100 rotates to the highest position of the drive element 400.

[0073] Next, the guide element 300 and the drive element 400 continue to rotate relative to each other. At this time, the drive element 400 will overcome the resistance of the damping part 130 to drive the support element 200 to continue to move upward (the storage element 100 remains stationary, and the support element 200 continues to push the cosmetic upward) until it reaches the end position of the storage element 100. This is the limit position of the stick cosmetic, which realizes the full utilization of the cosmetic.

[0074] 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.

[0075] 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 carrier component for stick-shaped cosmetics, characterized in that, include: A storage element having a storage space for receiving the stick-shaped cosmetic and being provided with a first groove extending axially; The support element is made of metal and is movably assembled within the storage space. The support element includes a support portion that supports the rod-shaped cosmetic and a guide portion that extends into and slides into the first groove. The guide portion is provided with a connecting foot that protrudes radially outward. The guide portion has an inner surface and an outer surface. The inner surface is partially recessed, and the corresponding outer surface protrudes outward to form the connecting foot.

2. The load-bearing component according to claim 1, characterized in that, The support element is a cylindrical structure, including a sidewall extending circumferentially, which forms the guide portion.

3. The load-bearing component according to claim 2, characterized in that, The sidewall is configured with a positioning part that fits with the inner wall of the storage element with a gap, and the guide part, the positioning part and the sidewall are at the same height.

4. The load-bearing component according to claim 3, characterized in that, The inner wall of the storage element is provided with axially arranged ribs, and the side wall is constructed with recesses to avoid the ribs. The recesses are arranged between the positioning part and the guide part.

5. The load-bearing component according to claim 2, characterized in that, The support element includes end walls that extend radially to form the support portion.

6. The load-bearing component according to claim 1, characterized in that, The support element is constructed entirely of deformed metal sheet.

7. The load-bearing component according to claim 1, characterized in that, The circumferential dimension of the connecting foot is smaller than the circumferential dimension of the guide portion, and / or the axial dimension of the connecting foot is smaller than the axial dimension of the guide portion.

8. The load-bearing component according to claim 1, characterized in that, The storage element has a damping portion that is interference-fitted with the support element.

9. The load-bearing component according to claim 8, characterized in that, The damping part is disposed on both sides of the slide groove and is interference-fitted with the guide part.

10. The load-bearing component according to claim 8, characterized in that, The supporting element has a starting position and an ending position relative to the receiving element. When the supporting element moves between the starting position and the ending position, the damping part always acts on the guide part.

11. The load-bearing component according to claim 1, characterized in that, The first chute, the guide portion and the connecting foot are arranged in pairs.

12. A packaging tube, characterized in that, The device includes a guide element, a drive element, and a load-bearing assembly as described in any one of claims 1 to 11. The guide element has a second groove extending axially, the inner wall of the drive element is provided with an internal thread, the connecting leg passes through the second groove and is adapted to the internal thread, and when the drive element rotates relative to the guide element, it drives the load-bearing assembly to move axially. Both the guide element and the drive element are made of metal.

13. The packaging tube according to claim 12, characterized in that, The driving element has a limiting portion that defines the highest position of the storage element.

14. The packaging tube according to claim 12, characterized in that, The storage element has a damping part that is interference-fitted with the support element. When the storage element reaches its highest position, the driving element overcomes the resistance of the damping part to drive the support element to continue moving upward.

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