Middle bundle core structure and lipstick tube with same

Abstract

The utility model relates to a median bundle core structure and a lipstick tube with the median bundle core structure, and the median bundle core structure comprises a rotating tube with a first end and a second end; the base is arranged at the second end of the rotating pipe; the external thread has a preset thread pitch and is arranged on the outer periphery of the rotating pipe, and the distance between a terminal thread, located at the second end, of the external thread and the base is smaller than the preset thread pitch; the inner sleeve fixing seat is provided with a hollow pipe body, the inner diameter of the hollow pipe body is larger than the outer diameter of the part, provided with the external threads, of the rotating pipe, and the rotating pipe is arranged on the hollow pipe body in a penetrating mode; and the convex part is arranged on the inner wall surface of the hollow pipe body and is embedded with the external thread. When the inner sleeve fixing seat rotates, the convex part moves between the first end of the rotating pipe and the second end of the rotating pipe along the external thread, so that the rotating pipe is driven to move relative to the inner sleeve fixing seat; when the convex part moves to the second end of the rotating pipe, the convex part cannot move towards the outside of the rotating pipe due to the interference of the terminal thread and the base, so that the rotating pipe is prevented from being separated from the inner sleeve fixing seat.

Description

[Technical field]

[0001] The invention relates to the technical field of cosmetic packaging, in particular to a middle bundle core structure and a lipstick tube with the middle bundle core structure. [Background technology]

[0002] With the development of the female economy, the domestic beauty market is growing rapidly and has great potential. As a kind of cosmetics, lipstick, which has the function of moisturizing and modifying lips, has gradually become a must-have cosmetics in women's lives.

[0003] In the pursuit of sustainable development, environmental protection, green and sustainability have also become a topic in the beauty industry. The beauty industry urgently needs products that are both practical and sustainable. Sustainable beauty products will be the general trend in the environmentalist environment.

[0004] Existing lipstick container products are mostly composed of a lipstick cover, a base and a core, and most plastic lipstick tubes are made of acrylonitrile-butadiene-styrene copolymer (ABS) or polyformaldehyde (POM), which are difficult to recycle. The few cores made of polyethylene terephthalate (PET) often have complex component structures and are more worn out during the production process, resulting in resource waste and increased costs.

[0005] In addition, the main structure of the existing lipstick container includes a base, a sleeve, a lipstick tube and a linkage mechanism, the sleeve is arranged on the base, the lipstick tube is placed inside the sleeve, and the lipstick tube can be moved up and down along the sleeve through a rotating mechanism arranged on the base. However, in actual use, the lipstick tube is easy to fall out of the sleeve and fall to the ground or other hard surfaces, causing damage, such as the lipstick carried on the lipstick tube breaking or the lipstick tube breaking, thereby affecting the appearance and quality of the lipstick. [Contents of the utility model]

[0006] The main purpose of the utility model is to provide a middle beam core structure, which has a simple structure, effectively reduces production loss and waste, and improves the yield rate.

[0007] Another object of the present invention is to provide a middle bundle core structure, which can limit the actuation stroke of the rotating tube and prevent the rotating tube from escaping from the inner sleeve fixing seat and falling off.

[0008] In order to achieve the above-mentioned purpose, the middle beam core structure provided by the utility model includes a rotating tube, having a first end and a second end; a base, which is arranged on the second end of the rotating tube; an external thread, which has a predetermined pitch and is arranged on the outer periphery of the rotating tube, and extends toward the second end along the tube axis direction of the rotating tube, and the distance between the terminal thread of the external thread at the second end and the base is less than the predetermined pitch; an inner sleeve fixing seat, which has a hollow tube body, the inner diameter of the hollow tube body is larger than the outer diameter of the part of the rotating tube provided with the external thread, and the rotating tube is passed through the hollow tube body; a convex portion is arranged on the inner wall surface of the hollow tube body, and is engaged with the external thread.

[0009] When the inner sleeve fixing seat rotates, the protrusion moves along the external thread between the first end of the rotating tube and the second end of the rotating tube, so that the rotating tube is driven to move relative to the inner sleeve fixing seat. When the protrusion moves to the second end of the rotating tube, it is interfered by the terminal screw thread and the base and cannot move outside the rotating tube, so as to prevent the rotating tube from being separated from the inner sleeve fixing seat.

[0010] In one embodiment, the convex portion is a narrow and long structure extending along the radial direction of the hollow tube body, and the narrow and long structure has a main body and two tapered ends respectively located at both ends of the main body, the height of the main body in the axial direction of the hollow tube body is equal to the predetermined pitch of the external thread, and the height of the two tapered ends in the axial direction of the hollow tube body gradually decreases in the direction away from the main body. Accordingly, the rotating tube can be driven by the inner sleeve fixing seat quite smoothly without the problem of stagnation or pause.

[0011] In one embodiment, since the entire material of the middle bundle core structure is polyethylene terephthalate (PET), it does not need to be sorted, which is convenient for recycling and reduces pollution.

[0012] In one embodiment, the mid-beam core structure further includes a head, which is disposed on the first end of the rotating tube, and the external thread extends along the tube axis direction of the rotating tube toward the position of the head, and the distance between the starting thread of the external thread adjacent to the head and the head is less than a predetermined pitch.

[0013] In one embodiment, the middle bundle core structure further includes: an inner sleeve, one end of which is rotatably disposed on the inner sleeve fixing seat; and a guide structure, disposed between the other end of the inner sleeve and the head, for guiding the moving direction of the rotating tube.

[0014] In one embodiment, the guide structure includes: a plurality of guide ribs, which are respectively arranged on the inner wall surface of the inner sleeve and extend along the axial direction of the inner sleeve; and a plurality of guide protrusions, which are respectively arranged on the outer periphery of the head. When the rotating tube moves, the guide protrusions are restricted by the guide ribs and stably move along the axial direction of the inner sleeve.

[0015] In one embodiment, the outer diameter of the head is equal to or greater than the outer diameter of the portion of the rotating tube provided with the external thread.

[0016] In one embodiment, the outer diameter of the base is equal to the outer diameter of the portion of the rotating tube provided with the external thread.

[0017] Furthermore, the utility model also provides a lipstick tube with a center bundle core structure, which comprises: a base; a center bundle core structure as described above, which is arranged on the base by a fitting structure; and a lipstick cover, which covers the base and allows the center bundle core structure to be accommodated inside the lipstick cover. The fitting structure comprises a recess arranged on the outer periphery of the base and a protrusion arranged on the inner sleeve fixing seat, and the protrusion and the recess are fitted into each other.

[0018] In one embodiment, the material of the lipstick cover is polyethylene terephthalate (PET), and the material of the base is polyethylene terephthalate (PET).

[0019] Accordingly, the present invention has at least the following features:

[0020] 1. The lipstick tube has a simple structure, low production difficulty, low loss, and effective cost reduction. It is suitable for all lipstick filling processes and is quick and convenient to produce and assemble. 2. The rotating tube moves up and down through the thread, so that the lipstick can be rotated at a uniform and stable speed, not easy to break, and convenient for consumers to use. 3. All materials are made of polyethylene terephthalate (PET), no need to disassemble and classify, 100% recyclable, environmentally friendly and green, effectively saving resources, and realizing sustainable and recyclable beauty packaging containers.

[0021] The specific technology adopted in this invention will be further described through the following embodiments and attached drawings.

Brief Description of the Drawings

[0022] Figure 1 It is a three-dimensional combination diagram of a preferred embodiment of the utility model.

[0023] Figure 2 for Figure 1 Section view along section line 2-2.

[0024] Figure 3 for Figure 2 Section view along section line 3-3.

[0025] Figure 4 It is a three-dimensional exploded view of a preferred embodiment of the utility model.

[0026] Figure 5 For related Figure 4 A three-dimensional schematic diagram of the inner sleeve fixing seat.

[0027] Figure 6 for Figure 5A partial cross-sectional view of .

[0028] Figure 7 This is an operation diagram of a preferred embodiment of the utility model.

[0029] Figure 8 To continue Figure 7 's action diagram.

[0030] Main component symbols:

[0031] 10 Base

[0032] 20 Middle beam core structure

[0033] 21 Rotating tube

[0034] 211 First End

[0035] 212 Second End

[0036] 22 Base

[0037] 23 External thread

[0038] 231 Final thread

[0039] 232 Starting screw thread

[0040] 24 Inner sleeve fixing seat

[0041] 25 convex part

[0042] 251 Ontology

[0043] 252 Tapered end

[0044] 26 Head

[0045] 261 Groove

[0046] 27 Inner sleeve

[0047] 28 Guidance structure

[0048] 281 Guide ribs

[0049] 282 guide bump

[0050] 30 Lipstick cover

[0051] 40 Chimeric structure

[0052] 41 bulge

[0053] 42 Depression

[0054] K Predetermined pitch

[0055] W1, W2 distance

[0056] D1, D2, D4 outer diameter

[0057] D3 inner diameter

[0058] H1, H2 Height

[0059] W1, W2 distance [Specific implementation method]

[0060] Since the various aspects and embodiments are only exemplary and non-restrictive, after reading this specification, a person with ordinary knowledge may also come up with other aspects and embodiments without departing from the scope of the invention. According to the following detailed description and claims, the features and advantages of these embodiments will be more prominent.

[0061] In this document, "a" or "an" is used to describe the components and elements described herein. This is only for the convenience of explanation and to provide a general meaning to the scope of this invention. Therefore, unless it is obvious that it is otherwise intended, such description should be understood to include one or at least one, and the singular also includes the plural.

[0062] As used herein, the terms "include," "have," or any other similar terms are intended to cover a non-exclusive inclusion. For example, a component or structure comprising a plurality of elements is not limited to only those elements listed herein, but may include other elements that are not expressly listed but are generally inherent to the component or structure.

[0063] First, see Figures 1 to 6 , which is a lipstick tube with a middle bundle core structure provided by a preferred embodiment of the utility model, comprises a base 10, a middle bundle core structure 20 and a lipstick cover 30. Among them, the base 10, the middle bundle core structure 20 and the lipstick cover 30 are all made of polyethylene terephthalate (PET) material, which does not need to be disassembled and classified, is 100% recyclable, is environmentally friendly and green, effectively saves resources, and realizes sustainable and recyclable cosmetic packaging containers.

[0064] The base 10 is the foundation for other components to be constructed. In this embodiment, the base 10 is a sleeve with an opening at one end and a closed end at the other end. The mid-beam core structure 20 can be accommodated inside the base 10 through the opening.

[0065] The middle beam core structure 20 includes a rotating tube 21, a base 22, an external thread 23, an inner sleeve fixing seat 24, a convex portion 25, a head 26, an inner sleeve 27 and a guiding structure 28, wherein:

[0066] Two ends of the rotating tube 21 are respectively a first end 211 and a second end 212 .

[0067] The base 22 is disposed on the second end 212 of the rotating tube 21 .

[0068] The external thread 23 has a predetermined pitch K and is disposed on the outer periphery of the rotating tube 21 and extends along the tube axis direction of the rotating tube 21 toward the second end 212, and the distance W1 between the terminal thread 231 of the external thread 23 at the second end 212 and the base 22 is less than the predetermined pitch K. Figure 2 Furthermore, the outer diameter D1 of the base 22 is equal to the outer diameter D2 of the portion of the rotating tube 21 provided with the external thread 23. Figure 2 shown.

[0069] The inner sleeve fixing seat 24 has a hollow tube body, the inner diameter D3 of the hollow tube body is larger than the outer diameter D2 of the portion of the rotating tube 21 with the external thread 23, and the rotating tube 21 is sleeved on the hollow tube body.

[0070] The protrusion 25 is provided on the inner wall surface of the hollow tube body and is engaged with the external thread 23. Specifically, the protrusion 25 is a narrow and long structure extending along the radial direction of the hollow tube body, and the narrow and long structure has a main body 251 and two tapered ends 252 respectively located at both ends of the main body 251. The height H1 of the main body 251 in the axial direction of the hollow tube body is equal to the predetermined pitch K of the external thread 23, and the height H2 of the two tapered ends 252 in the axial direction of the hollow tube body gradually decreases in the direction away from the main body 251, such as Figure 6 As shown, the rotating tube 21 can be driven by the inner sleeve fixing seat 24 quite smoothly without any problems of stagnation or pause.

[0071] The head 26 is disposed on the first end 211 of the rotating tube 21, and the external thread 23 also extends along the tube axis direction of the rotating tube 21 toward the position of the head 26, and the distance W2 between the starting thread 232 of the external thread 23 adjacent to the head 26 and the head 26 is less than the predetermined pitch K, such as Figure 2 Furthermore, the outer diameter D4 of the head 26 is equal to or greater than the outer diameter D2 of the portion of the rotating tube 21 provided with the external thread 23. In addition, the head 26 also has a groove 261 for filling the lipstick pulp.

[0072] The inner sleeve 27 is a tubular structure, one end of which is rotatably disposed on the inner sleeve fixing seat 24 , so that the rotating tube 21 is located in the inner space of the inner sleeve 27 .

[0073] The guide structure 28 is disposed between the other end of the inner sleeve 27 and the head 26 to guide the direction in which the rotating tube 21 moves. Specifically, the guide structure 28 includes a plurality of guide ribs 281 and a plurality of guide protrusions 282. The guide ribs 281 are respectively disposed on the inner wall surface of the inner sleeve 27 and extend along the axial direction of the inner sleeve 27, while the guide protrusions 282 are respectively disposed on the outer circumference of the head 26. When the rotating tube 21 moves, the guide protrusions 282 are restricted by the guide ribs 281 and stably move along the axial direction of the inner sleeve 27.

[0074] Furthermore, the middle beam core structure 20 is disposed on the base 10 by using a fitting structure 40 , wherein the fitting structure 40 has a recess 41 disposed on the outer periphery of the base 10 and a protrusion 42 disposed on the inner sleeve fixing seat 24 , and the protrusion 41 and the recess 42 are fitted with each other.

[0075] The lipstick cover 30 is a tubular cover body with one end open and the other end closed, so that it can be covered on the base 10, and the part of the middle bundle core structure 20 exposed outside the base 10 is covered by the lipstick cover 30.

[0076] Based on the above structural description, the specific operation mode of the present invention is described as follows:

[0077] First, if Figure 7 As shown, all components included in the lipstick tube are located at the initial position.

[0078] Next, the user rotates the base 10 to rotate the inner sleeve fixing seat 24 , and the protrusion 25 moves along the outer thread 23 between the first end 211 of the rotating tube 21 and the second end 212 of the rotating tube 21 , so that the rotating tube 21 is driven to move relative to the inner sleeve fixing seat 24 .

[0079] Finally, if Figure 8 As shown, when the protrusion 25 moves to the second end 212 of the rotating tube 21 , it is interfered by the terminal screw thread 231 and the base 22 and cannot move out of the rotating tube 21 , so as to prevent the rotating tube 21 from being separated from the inner sleeve fixing seat 24 .

[0080] In addition, the middle bundle core structure 20 provided by the present invention can be applied to lipstick tubes as well as other product packaging materials such as eyeliners, eyebrow pencils, lipsticks, perfume sticks, etc., and is not limited to the application products of this embodiment.

[0081] The above embodiments are essentially only auxiliary explanations, and are not intended to limit the application target of the embodiment or the application or use of multiple embodiments. In addition, although at least one exemplary embodiment has been proposed in the aforementioned embodiments, it should be understood that there are still a large number of changes in this creation. It should also be understood that the embodiments described herein are not intended to limit the scope, use or configuration of the requested application target in any way. On the contrary, the aforementioned embodiments will provide a simple guide for those with common knowledge in the art to implement one or more of the embodiments described. Furthermore, various changes can be made to the functions and arrangements of the components without departing from the scope defined by the claims, and the claims include known equivalents and all foreseeable equivalents when the present patent application is filed.

Claims

1. A mid-beam core structure, characterized in that: The mid-beam core structure comprises: A rotating tube having a first end and a second end; a base, disposed on the second end of the rotating tube; an external thread having a predetermined pitch, and being disposed on the outer periphery of the rotating tube and extending along the tube axis direction of the rotating tube toward the second end, and making the distance between the terminal thread of the external thread at the second end and the base smaller than the predetermined pitch; an inner sleeve fixing seat, having a hollow tube body, the inner diameter of which is larger than the outer diameter of the portion of the rotating tube provided with external threads, and the rotating tube is passed through the hollow tube body; and a convex portion, which is provided on the inner wall surface of the hollow tube body and is engaged with the external thread, and when the inner sleeve fixing seat rotates, the convex portion moves along the external thread between the first end of the rotating tube and the second end of the rotating tube, so that the rotating tube is driven to move relative to the inner sleeve fixing seat; When the protrusion moves to the second end of the rotating tube, it is interfered by the terminal screw thread and the base and cannot move out of the rotating tube, so as to prevent the rotating tube from being separated from the inner sleeve fixing seat.

2. The mid-beam core structure according to claim 1, characterized in that: The convex portion is a long and narrow structure extending along the radial direction of the hollow tube body, and the long and narrow structure has a main body and two tapered ends respectively located at both ends of the main body. The height of the main body in the axial direction of the hollow tube body is equal to the predetermined pitch of the external thread, and the height of the two tapered ends in the axial direction of the hollow tube body gradually decreases in the direction away from the main body.

3. The mid-beam core structure according to claim 1, characterized in that: The material of the mid-bundle core structure is polyethylene terephthalate.

4. The mid-beam core structure according to claim 1, characterized in that: The mid-beam core structure further includes a head, which is arranged on the first end of the rotating tube, and the external thread extends along the tube axis direction of the rotating tube toward the position of the head, and the distance between the starting thread of the external thread adjacent to the head and the head is less than the predetermined pitch.

5. The mid-beam core structure according to claim 4, characterized in that: The mid-beam core structure further comprises: an inner sleeve, one end of which is rotatably mounted on the inner sleeve fixing seat; and A guiding structure is arranged between the other end of the inner sleeve and the head, and is used to guide the moving direction of the rotating tube.

6. The mid-beam core structure according to claim 5, characterized in that: The guiding structure comprises: a plurality of guide ribs, respectively disposed on the inner wall surface of the inner sleeve and extending along the axial direction of the inner sleeve; and A plurality of guide protrusions are respectively arranged on the outer periphery of the head. When the rotating tube moves, the guide protrusions are restricted by the guide ribs and stably move along the axial direction of the inner sleeve.

7. The mid-beam core structure according to claim 4, characterized in that: The outer diameter of the head is equal to or larger than the outer diameter of the portion of the rotating tube provided with the external thread.

8. The mid-beam core structure according to claim 1, characterized in that: The outer diameter of the base is equal to the outer diameter of the portion of the rotating tube provided with the external thread.

9. A lipstick tube with a mid-bundle core structure, characterized in that: The lipstick tube with a mid-core structure includes: a base; A mid-beam core structure according to any one of claims 1 to 8, arranged on the base by a chimeric structure; as well as A lipstick cover, which covers the base and allows the inner part of the lipstick cover to accommodate the middle bundle core structure; The interlocking structure comprises a depression arranged on the outer periphery of the base and a protrusion arranged on the inner sleeve fixing seat, and the protrusion and the depression are interlocked with each other.

10. The lipstick tube with a mid-bundle core structure according to claim 9, characterized in that: The material of the lipstick cover is polyethylene terephthalate, and the material of the base is polyethylene terephthalate.

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