Middle bundle core and cosmetic packaging container

Abstract

The utility model discloses a median bundle core and a cosmetic packaging container, the median bundle core comprises a shell, a driving tube and a bracket used for bearing cosmetic paste, the bottom of the driving tube is provided with a connecting structure used for being detachably connected with an external part, and the connecting structure is connected with the driving tube. The bottom of the driving pipe is further provided with a protruding part extending out of the hollow cavity, and the outer diameter of the protruding part is larger than the inner diameter of the hollow cavity. The middle bundle core not only can be used as a replaceable accessory to be detachably mounted in the cosmetic packaging container, but also can be used as a part of component of the cosmetic packaging container to be fixedly connected to the base of the outer packaging tube in a bonding manner, so that the middle bundle core can meet the use requirements of different manufacturers or users, and the production efficiency is improved. Mould quantity is saved, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of cosmetic packaging, and particularly to a middle core and a cosmetic packaging container with the middle core. Background Art

[0002] For smear cosmetics such as lipsticks, their packaging containers usually consist of an outer packaging tube and a middle core arranged inside the outer packaging tube. The outer packaging tube includes a base and an outer cap detachably connected to the base, and the two cooperate with each other to form a hollow cavity. The paste of the cosmetic is arranged in the middle core, and the middle core is fixed on the base, and the middle core is received therein by the cooperation of the outer cap and the base. In some packaging containers in the prior art, the middle core and the outer packaging tube are separately manufactured and then detachably assembled, and different middle cores can be replaced according to needs; in some cases, some components on the base and the middle core are directly integrally formed, and the base and the middle core need to be produced by the same production process. However, the structures of the middle cores adopted in the above two cosmetic packaging containers are not universal, resulting in the need to configure different molds to produce corresponding products, increasing the cost. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a new middle core to solve one or more problems of the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a middle core, the middle core includes a shell, a driving tube and a holder for carrying the paste of the cosmetic. The shell has a hollow cavity axially penetrating therethrough. The holder is movably arranged in the lumen of the driving tube along the axial direction of the shell. The driving tube is rotatably arranged in the hollow cavity around its own axis. Wherein, a connecting structure for detachably connecting with an external component is arranged at the bottom of the driving tube, and a protruding part extending outside the hollow cavity is further provided at the bottom of the driving tube, and the outer diameter of the protruding part is larger than the inner diameter of the hollow cavity.

[0005] In some embodiments, the protruding part has a joint surface facing the shell, and the joint surface extends obliquely away from the shell gradually from inside to outside in the radial direction, and the outer diameter of the joint surface is smaller than the outer diameter of the shell.

[0006] In some embodiments, the protruding part further has a connecting surface. The connecting surface and the joint surface are two end surfaces respectively arranged at different ends of the protruding part along the axial direction of the shell. The outer diameter of the connecting surface is smaller than the outer diameter of the joint surface, and the outer peripheral part of the connecting surface is connected with the outer peripheral part of the joint surface through an arc surface.

[0007] In some embodiments, the height of the protruding part along the axial direction of the shell is h, and 0 < h ≤ 3 mm.

[0008] In some embodiments, the connection structure includes a connection hole provided at the bottom of the driving tube. A plurality of tooth portions are provided on the circumferential hole wall of the connection hole. The tooth portions extend along the axial direction of the housing, and all the tooth portions are spaced apart circumferentially. A groove portion extending along the axial direction of the housing is formed between two adjacent tooth portions.

[0009] In some embodiments, the connection structure further includes a limiting platform. The limiting platform axially divides the lumen of the driving tube into the connection hole and the guiding cavity, and the support is movably installed in the guiding cavity.

[0010] In some embodiments, the driving tube includes a tube body and an annular boss that axially concaves inward from the bottom of the tube body into the inner cavity of the tube body. A space is provided between the outer circumferential wall of the annular boss and the inner circumferential wall of the tube body. The inner cavity of the annular boss forms the connection hole, and the limiting platform is provided at the top end of the annular boss.

[0011] In some embodiments, the limiting platform has a communication hole that axially penetrates through. The communication hole axially communicates the connection hole and the guiding cavity.

[0012] In some embodiments, a plurality of guiding rings that protrude radially outward are provided on the outer circumferential portion of the driving tube, and the plurality of guiding rings are axially spaced apart; a plurality of guiding grooves are spaced apart on the inner circumferential wall of the housing. The plurality of guiding rings are slidably disposed in the plurality of guiding grooves. An avoidance groove extending along the axial direction is provided on the driving tube. A convex column is provided on the outer circumferential portion of the support. A helically extending thread groove is provided on the inner circumferential wall of the housing. The convex column axially penetrates through the avoidance groove and is slidably inserted into the thread groove.

[0013] Another object of the present invention is to provide a cosmetic packaging container, and its technical solution is:

[0014] A cosmetic packaging container includes:

[0015] A middle core, the middle core is as described above;

[0016] A base, the base has an installation cavity and a connection portion provided in the installation cavity. The connection portion can be detachably connected to the connection structure, or the connection portion has an adhesive surface that can be adhesively fixed to the bottom surface of the protruding portion;

[0017] An outer cover, the outer cover is detachably connected to the base. When the outer cover and the base are connected to each other, a receiving cavity for receiving the middle core is formed in cooperation.

[0018] Due to the application of the above technical solution, the present utility model has the following advantages compared with the prior art: For the middle beam core of the present utility model, a connection structure for detachably connecting with external components is simultaneously provided at the bottom of the driving tube, and a protruding part extending outside the hollow cavity of the housing is provided. Therefore, it can be detachably installed in a cosmetic packaging container as a replaceable accessory, or it can be fixedly connected to the base of the outer packaging tube by bonding as a part component of the cosmetic packaging container. This enables the middle beam core to meet the usage requirements of different manufacturers or users, saves the number of molds, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG Figure 1 is a front view structural schematic diagram of the overall structure of the middle beam core according to an embodiment of the present utility model;

[0020] FIG Figure 2 is an enlarged schematic diagram of part A in FIG Figure 1 ;

[0021] FIG Figure 3 is a top view structural schematic diagram of the middle beam core of FIG Figure 1 ;

[0022] FIG Figure 4 is a bottom view structural schematic diagram of the middle beam core of FIG Figure 1 ;

[0023] FIG Figure 5 is an exploded structural schematic diagram of the middle beam core of FIG Figure 1 ;

[0024] FIG Figure 6 is a longitudinal sectional schematic diagram of the middle beam core of FIG Figure 1 ;

[0025] FIG Figure 7 is a structural schematic diagram of the middle beam core of FIG Figure 6 when the support moves to the highest position;

[0026] Wherein: 1. Housing; 11. Threaded groove; 12. Guide groove;

[0027] 2. Driving tube; 21. Tube body; 22. Protruding part; 23. Guide ring; 24. Avoidance groove; 241. Upper limit groove; 242. Lower limit groove; 25. Ring-shaped boss; 26. Limit table; 27. Tooth part;

[0028] 3. Support; 31. Convex column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solution of the present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art. Obviously, the described embodiments of the present application are only a part of the embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] See Figures 1 to 7 A middle beam core as shown. The middle beam core includes a housing 1, a driving tube 2, and a holder 3 for carrying a cosmetic paste. In this embodiment, the housing 1, the driving tube 2, and the holder 3 are integrally formed as a whole. Among them, the housing 1 has a hollow cavity penetrating along the axis. The holder 3 is movably arranged in the lumen of the driving tube 2 along the axis of the housing 1. The driving tube 2 is rotatably arranged in the housing 1 around its own axis, and the axial position of the driving tube 2 in the housing 1 remains unchanged all the time. During the process of the driving tube 2 rotating around its own axis relative to the housing 1, the holder 3 is driven to move along the axis of the housing 1, so that the cosmetic paste installed thereon can extend out of the hollow cavity or retract into the hollow cavity.

[0031] Specifically, a plurality of guiding rings 23 protruding radially outward are provided on the outer peripheral portion of the driving tube 2. The plurality of guiding rings 23 are spaced apart along the axis. A plurality of guiding grooves 12 are spacedly arranged on the inner peripheral wall of the housing 1. The plurality of guiding rings 23 are slidably arranged in the plurality of guiding grooves 12, so that the driving tube 2 can only rotate around its own axis relative to the housing 1 in the hollow cavity of the housing 1.

[0032] An avoidance groove 24 extending along the axis is provided on the driving tube 2. A convex column 31 is provided on the outer peripheral portion of the holder 3. A helically extending thread groove 11 is provided on the inner peripheral wall of the housing 1. The convex column 31 can pass through the avoidance groove 12 along the radial direction of the housing 1 and is slidably inserted into the thread groove 11. When the driving tube 2 is driven to rotate relative to the housing 1, the convex column 31 is slidably engaged with the thread groove 11, and at the same time, it can only move axially relative to the housing 1 under the limiting action of the avoidance groove 24, realizing the change of the position of the holder 3 in the axial direction of the housing 1.

[0033] Upper limit grooves 241 and lower limit grooves 242 are respectively provided at the two ends of the avoidance groove 24. The extending directions of the upper limit groove 241 and the lower limit groove 242 are both perpendicular to the extending direction of the avoidance groove 24. When the convex column 31 slides to cooperate with the lower limit groove 242, the holder 3 cannot continue to move downward. When the convex column 31 slides to cooperate with the upper limit groove 241, the holder 3 cannot continue to move upward, thereby limiting the maximum stroke of the holder 3 on the housing 1.

[0034] As shown in the respective drawings, in the middle beam core of the present embodiment, a connection structure for detachably connecting with an external component is provided at the bottom of the driving tube 2; the bottom of the driving tube 2 also has a protruding portion 22 extending outside the hollow cavity, and the outer diameter of the protruding portion 22 is greater than the inner diameter of the hollow cavity. In this way, when forming a cosmetic packaging container, the cosmetic container further includes an outer packaging tube (not shown in the drawings) for installing the middle beam core. The outer packaging tube at least includes a base and an outer cover. The base and the outer cover are detachably connected, and when the two are connected to each other, a receiving cavity for accommodating the middle beam core can be formed. The base is used to connect the middle beam core, specifically to connect the driving tube 2 and can drive the driving tube 2 to rotate synchronously.

[0035] Specifically, the base at least has an installation cavity and a connection portion provided in the installation cavity. The connection between the two can be made detachable by providing a mating structure on the connection portion to cooperate with the connection structure at the bottom of the driving tube 2, so that the driving tube 2 of the middle beam core can be fixedly connected to the base. Or a bonding surface capable of fixedly bonding to the bottom surface of the protruding portion 22 is provided on the connection portion, and the protruding portion 22 is fixedly bonded to the bonding surface, so that the driving tube 2 of the middle beam core can be fixedly connected to the base to achieve non-detachable connection. In the bonding process, the adhesive is not likely to enter the gap between the housing 1 and the driving tube 2 and cause the middle beam core to be unusable. In this way, regardless of the form of the selected outer packaging tube, that is, whether it is necessary to make the connection between the outer packaging tube and the middle beam core detachable or to set the connection between the outer packaging tube and the middle beam core as non-detachable, the same set of middle beam cores can be used, which is beneficial to reducing the production molds of the middle beam core and lowering the production cost.

[0036] Specifically, the height of the protruding portion 22 along the circumference of the housing 1 is h, where 0 < h ≤ 3 mm. If the height of the protruding portion 22 is too large, it will cause the overall size of the cosmetic packaging container to be longer after adding the base and cause unnecessary waste of raw materials.

[0037] As shown in the respective drawings, the protruding portion 22 has a joint surface 22a facing the housing 1. The joint surface 22a gradually extends away from the housing 1 in an inclined manner from the inside to the outside in the radial direction, and the outer diameter of the joint surface 22a is smaller than the outer diameter of the housing 1. The protruding portion 22 also has a connection surface 22b. The connection surface 22b and the joint surface 22a are two end surfaces respectively provided at different ends of the protruding portion 22 along the axial direction of the housing 1. The connection surface 22b is the bottom surface of the protruding portion 22, and it is configured to cooperate with the bonding surface of the base for bonding. The outer diameter of the connection surface 22b is smaller than the outer diameter of the joint surface 22a, and the outer circumferential surface of the connection surface 22b and the outer circumferential portion of the joint surface 22a are connected by an arc surface.

[0038] In this way, when bonding the protruding portion 22 to the base, the adhesive is first applied to the bonding surface or the connecting surface 22b, and then the connecting surface 22b and the bonding surface are butted in the up-and-down direction. Due to the arrangement of the outer peripheral surface of the protruding portion 22 and the joint surface 22a, the excess adhesive is not likely to move upward through the protruding portion 22 and enter between the housing 1 and the joint surface 22a, so that the driving tube 2 and the housing 1 can be kept independent and will not be bonded to affect the normal use of the middle beam core.

[0039] As shown in the various drawings, in this embodiment, the connecting structure includes a connecting hole provided at the bottom of the driving tube 2. A plurality of tooth portions 27 are provided on the circumferential hole wall of the connecting hole. All the tooth portions 27 extend along the axial direction of the housing 1, and all the tooth portions 27 are circumferentially spaced apart. A groove portion (not marked in the figure) extending along the axial direction of the housing 1 is formed between two adjacent tooth portions 27. In this way, when connecting to the base of the outer packaging tube, the matching structure of the connecting portion on the base is also provided with corresponding tooth portions and groove portions. When the tooth portions 27 and the groove portions on the driving tube 2 are correspondingly inserted into the groove portions and the tooth portions on the base, the two can be positioned in the circumferential direction, so that the driving tube 2 can be driven to rotate when the base is driven to rotate.

[0040] The connecting structure further includes a limiting platform 26. The limiting platform 26 axially divides the lumen of the driving tube 2 into a guiding cavity and the above-mentioned connecting hole. The support base 3 is movably installed in the guiding cavity. The limiting platform 26 also provides axial limitation when the connecting portion on the base is inserted into the connecting hole. The limiting platform 26 is also provided with a through hole (not shown in the figure) extending axially. The through hole axially communicates the connecting hole and the guiding cavity. The through hole can be used for cooperation with the connecting portion on the base so that the base and the driving tube 2 can be axially locked. Here, the driving tube 2 includes a tube body 21 and a ring-shaped boss 25 that is axially recessed from the bottom of the tube body 21 into the inner cavity of the tube body 21. A space is provided between the outer peripheral wall of the ring-shaped boss 25 and the inner peripheral wall of the tube body 21. The inner cavity of the ring-shaped boss 25 forms the above-mentioned connecting hole, and the limiting platform 26 is provided at the top of the ring-shaped boss 25. The annular groove formed between the outer peripheral wall of the ring-shaped boss 25 and the inner peripheral wall of the tube body 21 can axially accommodate a part of the structure of the support base 3, which to a certain extent enables the overall length of the middle beam core to be reduced on the basis of the preset stroke, so that the cosmetic packaging container can be made more compact and delicate.

[0041] In summary, the middle beam core of this embodiment can be either detachably installed in the cosmetic packaging container as a replaceable accessory or fixed to the base of the outer packaging tube by bonding as a part of the cosmetic packaging container. This middle beam core can meet the usage requirements of different manufacturers or users, save the number of molds, and reduce costs.

[0042] The above embodiments are only used to illustrate the technical concept and features of the present utility model. The purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly, and it should not be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A mid-beam core, characterized in that: The middle bundle core includes a shell, a driving tube and a holder for carrying a cosmetic paste, the shell has a hollow cavity extending axially therethrough, the holder can be movably arranged in the tube cavity of the driving tube along the axial direction of the shell, the driving tube can be rotatably arranged in the hollow cavity around its own axis, wherein a connecting structure for detachably connecting to an external component is provided at the bottom of the driving tube, and the bottom of the driving tube also has a protrusion extending out of the hollow cavity, and the outer diameter of the protrusion is greater than the inner diameter of the hollow cavity.

2. The mid-beam core according to claim 1, characterized in that: The protrusion has a joint surface facing the shell, the joint surface extends radially from the inside to the outside and gradually away from the shell, and the outer diameter of the joint surface is smaller than the outer diameter of the shell.

3. The mid-beam core according to claim 2, characterized in that: The protrusion also has a connecting surface, and the connecting surface and the joining surface are two end surfaces respectively arranged at two different ends of the protrusion along the axial direction of the shell. The outer diameter of the connecting surface is smaller than the outer diameter of the joining surface, and the outer peripheral portion of the connecting surface is connected to the outer peripheral portion of the joining surface through an arc surface.

4. The mid-beam core according to claim 1, characterized in that: The height of the protrusion along the axial direction of the shell is h, 0<h≤3mm.

5. The mid-beam core according to claim 1, characterized in that: The connection structure includes a connection hole arranged at the bottom of the driving tube, and a plurality of teeth are arranged on the circumferential hole wall of the connection hole. The teeth extend along the axial direction of the shell, and all the teeth are arranged at intervals along the circumferential direction, and a groove extending along the axial direction of the shell is formed between two adjacent teeth.

6. The mid-beam core according to claim 5, characterized in that: The connection structure further comprises a limiting platform, which axially separates the tube cavity of the driving tube into the connecting hole and the guide cavity, and the bracket is movably installed in the guide cavity.

7. The mid-beam core according to claim 6, characterized in that: The driving tube includes a tube body, and an annular boss which is recessed axially inward from the bottom of the tube body into the inner cavity of the tube body, the outer circumferential wall of the annular boss is spaced apart from the inner circumferential wall of the tube body, the inner cavity of the annular boss forms the connecting hole, and the limit platform is arranged at the top of the annular boss.

8. The mid-beam core according to claim 7, characterized in that: The limiting platform has a connecting hole penetrating along the axial direction, and the connecting hole connects the connecting hole and the guide cavity along the axial direction.

9. The mid-beam core according to claim 1, characterized in that: The outer peripheral portion of the driving tube is provided with a plurality of guide rings protruding outward in the radial direction, and the plurality of guide rings are spaced apart in the axial direction; the inner peripheral wall of the shell is provided with a plurality of guide grooves at intervals, and the plurality of guide rings are slidably fitted in the plurality of guide grooves. The drive tube is provided with an axially extending avoidance groove, the outer peripheral portion of the bracket is provided with a boss, the inner peripheral wall of the shell is provided with a spirally extending thread groove, the boss passes through the avoidance groove along the radial direction of the shell and is inserted in the thread groove in a sliding fit.

10. A cosmetic packaging container, characterized in that: include: A mid-beam core, the mid-beam core being as claimed in any one of claims 1 to 9; A base, the base having a mounting cavity, and a connecting portion disposed in the mounting cavity, the connecting portion being detachably connected to the connecting structure, or the connecting portion having an adhesive surface that can be adhesively fixed to the bottom surface of the protruding portion; The outer cover is detachably connected to the base, and when the outer cover and the base are connected to each other, they cooperate to form a receiving cavity for accommodating the middle bundle core.

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