Patent application title:

APPLICATOR AND PACKAGING CONTAINER INCLUDING SAME

Publication number:

US20260165444A1

Publication date:
Application number:

19/403,012

Filed date:

2025-11-27

Smart Summary: An applicator is designed to work with a special packaging container. It has three main parts: an inner cap, a fixing ring, and an application head. The inner cap has two rings that hold everything together, while the application head is attached to the inner ring. When not in use, the application head stays protected inside the container, which helps save space and keeps the material clean. This design prevents any contamination of the material inside the bottle. 🚀 TL;DR

Abstract:

The provided is an applicator and a packaging container including the applicator. The applicator includes an inner cap, a fixing ring, and an application head, where the inner cap includes an outer ring and an inner ring that are fixedly connected; the outer ring is located at an outer side of the inner ring; the application head is fixedly connected to the inner ring; the fixing ring is fixedly sleeved on the inner ring; and the fixing ring is embedded into the application head. Since the application head is located inside an inner plug, the application head does not contact material in an outer bottle when not used, thereby saving storage space for the material, and preventing contamination to the material.

Inventors:

Assignee:

Applicant:

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Classification:

A45D34/04 »  CPC main

Containers or accessories specially adapted for handling liquid toilet or cosmetic substances, e.g. perfumes Appliances specially adapted for applying liquid, e.g. using roller or ball

Description

CROSS-REFERENCE TO THE RELATED APPLICATIONS

This application is based upon and claims priority to Chinese Patent Application No. 202411849311.5, filed on Dec. 13, 2024, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to cosmetic packaging technologies, and in particular to an applicator and a packaging container including the applicator.

BACKGROUND

Some cosmetics such as liquid lipsticks, lip glosses, and liquid blushes are used with an applicator device. Applicator devices include a bottle body and an application head. During use, the application head is used to pick up an appropriate amount of material and apply it to a desired region, thereby completing the makeup process. Since the application head has a large area and is constantly inserted into the material in the bottle body, it often picks up excessive material. After use, the application head with excess material is inserted back into the bottle body, causing contamination to the material in the bottle body.

SUMMARY

The present disclosure provides an applicator, to overcome the above defects. Since the application head is located inside the inner plug, the application head does not contact the material in the outer bottle when the applicator is not used, thereby saving storage space for the material, and preventing contamination to the material.

To solve the technical problems, the present disclosure employs the following technical solutions:

An applicator includes an inner cap, a fixing ring, and an application head, where the inner cap includes an outer ring and an inner ring that are fixedly connected; the application head is fixedly connected to the inner ring; the fixing ring is fixedly sleeved on an outer side of the inner ring; the inner ring has a sealed end wall; and the fixing ring and the end wall jointly define a mounting space for the application head.

Optionally, the inner ring includes a first outer sidewall and a second outer sidewall; the second outer sidewall is recessed inward from the first outer sidewall along a radial direction of the inner ring; and the fixing ring is sleeved on the second outer sidewall.

Optionally, a first clamping tooth is disposed on the end wall of the inner ring; the end wall is provided with a connecting rod that extends axially; the application head is axially provided with a mounting groove; the connecting rod is fixedly inserted into the mounting groove; and the first clamping tooth is embedded into the application head.

Optionally, a first end of the fixing ring is fixedly sleeved on the inner ring; a second end of the fixing ring extends radially inward to form a clamping plate; and the clamping plate extends along an axial direction of the fixing ring to form a second clamping tooth.

Optionally, the application head includes a mounting portion, an application portion, and a clamping groove; an outer sidewall of the mounting portion is recessed radially inward to form the clamping groove; the clamping plate is clamped into the clamping groove; the second clamping tooth is embedded into the mounting portion; and the mounting portion is fixed in the mounting space.

Optionally, the application portion is provided with at least one planar application surface; and a minimum outer diameter of the application portion is greater than or equal to an outer diameter of the mounting portion.

Optionally, the application head is made of a porous material; and/or the application head is flocked.

The present disclosure further provides a packaging container, including the applicator, an inner plug, and an outer bottle, where the inner plug is fixedly disposed in the outer bottle; the applicator is detachably closed onto the outer bottle; when the applicator is disposed on the outer bottle, the application head is located in the inner plug, the inner plug is in interference fit with the inner ring, the fixing ring is located between the inner ring and the inner plug, and the inner plug is located at an inner side of the outer ring; a feeding hole is formed in the inner plug; and a steel ball is disposed in the outer bottle.

Optionally, the feeding hole includes first feeding holes; the inner plug is provided with a bottom plate; and at least one of the first feeding holes is formed in the bottom plate; and/or the feeding hole includes at least one second feeding hole; and the at least one second feeding hole is formed in a peripheral wall of the inner plug.

Optionally, the outer bottle includes a bottle body and a bottle shoulder; a material of the inner plug includes a first material; a material of the bottle shoulder includes a second material; and hardness of the first material is less than hardness of the second material.

The present disclosure has the following beneficial effects: In the present disclosure, since the application head is located inside the inner plug, the application head does not contact material in the outer bottle when not used, saving storage space for the material, and preventing contamination to the material. In use, the material is absorbed by the application head through the feeding hole in the inner plug. Hence, the application head can pick up an appropriate amount of material, which provides convenience for the user, does not waste the material, and improves the use efficiency of the material. In the present disclosure, the fixing ring is sleeved on the inner cap, and the fixing ring and the inner cap cooperate to fix the application head, which improves a bonding strength between the application head and the inner cap, and prevents separation of the application head. In assembly, the fixing ring is disposed on the application head, and then the inner cap is embedded into the application head. Therefore, the assembly method is simple and convenient.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a sectional view of a packaging container according to the present disclosure;

FIG. 2 is an enlarged view of A shown in FIG. 1;

FIG. 3 is a perspective view of a packaging container according to the present disclosure;

FIG. 4 is a first exploded view of a packaging container according to the present disclosure;

FIG. 5 is a second exploded view of a packaging container according to the present disclosure;

FIG. 6 is a first schematic structural view of an inner cap according to the present disclosure;

FIG. 7 is a second schematic structural view of an inner cap according to the present disclosure;

FIG. 8 is a third schematic structural view of an inner cap according to the present disclosure;

FIG. 9 is a fourth schematic structural view of an inner cap according to the present disclosure;

FIG. 10 is a fifth schematic structural view of an inner cap according to the present disclosure;

FIG. 11 is a sixth schematic structural view of an inner cap according to the present disclosure;

FIG. 12 is a first schematic structural view of a fixing ring according to the present disclosure;

FIG. 13 is a second schematic structural view of a fixing ring according to the present disclosure;

FIG. 14 is a third schematic structural view of a fixing ring according to the present disclosure;

FIG. 15 is a fourth schematic structural view of a fixing ring according to the present disclosure;

FIG. 16 is a fifth schematic structural view of a fixing ring according to the present disclosure;

FIG. 17 is a sixth schematic structural view of a fixing ring according to the present disclosure;

FIG. 18 is a first schematic structural view of an inner plug according to the present disclosure;

FIG. 19 is a second schematic structural view of an inner plug according to the present disclosure;

FIG. 20 is a third schematic structural view of an inner plug according to the present disclosure;

FIG. 21 is a fourth schematic structural view of an inner plug according to the present disclosure;

FIG. 22 is a fifth schematic structural view of an inner plug according to the present disclosure;

FIG. 23 is a sixth schematic structural view of an inner plug according to the present disclosure;

FIG. 24 is a seventh schematic structural view of an inner plug according to the present disclosure; and

FIG. 25 is a schematic structural view of an application head according to the present disclosure.

In the figures: 10—outer cap, 20—inner cap, 21—outer ring, 22—inner ring, 23—connecting rod, 24—first clamping tooth, 25—internal thread, 26—first outer sidewall, 27—second outer sidewall, 30—fixing ring, 31—clamping plate, 32—second clamping tooth, 40—inner plug, 41—convex edge, 42—bottom plate, 43—first feeding hole, 44—second feeding hole, 45—protrusion, 50—application head, 51—mounting groove, 52—clamping groove, 53—mounting portion, 54—application portion, 60—outer bottle, 61—bottle body, 62—bottle shoulder, 63—external thread, 64—steel ball, and 65—groove.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The following describes the technical solutions in the embodiments of the present disclosure clearly and completely with reference to the embodiments of the present disclosure. Apparently, the embodiments described are merely some rather than all of the embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

It should be noted that the terms “first”, “second” and so on in the description and claims of the present disclosure and in the above accompanying drawings are intended to distinguish similar objects but do not necessarily indicate a specific order or sequence. It should be understood that the objects used in such a way may be exchanged under proper conditions to make it possible to implement the described implementations of this application in sequences except those illustrated or described herein. Moreover, the terms “include”, “have” and their variants mean to cover a non-exclusive inclusion. For example, a process, method, system, product or device that includes a list of steps or units is not necessarily limited to those steps or units which are clearly listed. Instead, they may include other steps or units which are not expressly listed or inherent to such a process, method, product, or device.

For ease of description, spatially relative terms, such as “above”, “on the upper side of”, “on the upper surface of” and “on”, can be used to describe the spatial positional relationship between components or features shown in the figure. It should be understood that the spatially relative terms are intended to encompass different orientations of the components in use or operation in addition to those shown in the figure. For example, if a component in the figure is inverted, it is described as a component “above other component or structure” or “on other component or structure”. Therefore, the component will be positioned as “below other component or structure” or “under other component or structure”. Therefore, the exemplary term “above” may include both orientations “above” and “below”. The component may also be positioned in other different ways (rotated by 90 degrees or in other orientations), but the relative description of the space should be explained accordingly.

Embodiments: As shown in FIGS. 1-25, an applicator includes inner cap 20, fixing ring 30, and application head 50. The inner cap 20 includes outer ring 21 and inner ring 22 that are fixedly connected. The application head 50 is fixedly connected to the inner ring 22. The fixing ring 30 is fixedly sleeved on an outer side of the inner ring 22. The inner ring 22 has a sealed end wall. The fixing ring 30 and the end wall jointly define a mounting space for the application head.

The applicator is used in a packaging container. The packaging container further includes inner plug 40 and outer bottle 60. In use, the inner plug 40 is fixed in the outer bottle 60, the applicator is inserted into the outer bottle 60, and the application head 50 is located inside the inner plug 40. Material is stored in the outer bottle 60. The material flows to the application head 50 through a feeding hole of the inner plug 40, and the application head 50 is used for makeup. In the present disclosure, since the application head 50 is located inside the inner plug 40, the application head 50 does not contact the material in the outer bottle 60 when not used, thereby saving storage space for the material, and preventing contamination to the material

In the present disclosure, the fixing ring 30 is sleeved on the inner ring 22 of the inner cap 20, i.e., the fixing ring 30 is located at the outer side of the inner ring 22. The fixing ring 30 and the inner cap 20 cooperate to fix the application head 50, improving a bonding strength between the application head 50 and the inner cap 20, and preventing separation of the application head 50. In assembly, the fixing ring 30 is disposed on the application head 50, and then the inner cap 20 is inserted into the application head 50 from an upward side. That is, the inner cap 20 and the fixing ring 30 are of a two-piece structure, and the application head 50 is attached to the inner ring 22 from the outer side of the inner ring 22, such that the applicator is disposed conveniently from the bottom up. Therefore, the assembly method is simpler and quicker.

As shown in FIGS. 6-11, the inner ring 22 includes first outer sidewall 26 and second outer sidewall 27. The second outer sidewall 27 is recessed inward from the first outer sidewall 26 along a radial direction of the inner ring 22. The fixing ring 30 is sleeved on the second outer sidewall 27. That is, a step is formed between the first outer sidewall 26 and the second outer sidewall 27. When the fixing ring 30 is sleeved on the second outer sidewall 27, an outer sidewall of the fixing ring 30 does not protrude from the first outer sidewall 26. The outer ring 21 is of a cylindrical structure that is open at an upper end and a lower end. The inner ring 22 is of a cylindrical structure with an upper end open and a lower end sealed. A gap is formed between the outer ring 21 and the inner ring 22. The fixing ring 30 is inserted into the gap. Optionally, the fixing ring 30 and the inner ring 22 are fixed through a snap fit between a protrusion and a clamping groove. A clamping groove and/or a protrusion are disposed on the second outer sidewall 27. A protrusion and/or a clamping groove are disposed on an inner sidewall of the fixing ring 30. In assembly, the protrusion is clamped into the clamping groove, so as to fix the fixing ring 30 on the second outer sidewall 27. Alternatively, a thread is disposed on the second outer sidewall 27. The fixing ring 30 is threadedly connected to the second outer sidewall.

As shown in FIG. 6 and FIG. 9, the upper end of the inner ring 22 is an open end. The upper end of the inner ring 22 is fixedly connected to an inner sidewall of the outer ring 21. The lower end of the inner ring 22 is sealed by the end wall. First clamping tooth 24 is disposed on the end wall of the inner ring 22. The end wall is provided with connecting rod 23 that extends axially. The end wall of the inner ring 22 is fixedly connected to the second outer sidewall 27 of the inner ring 22. As shown in FIG. 2 and FIG. 25, the application head 50 is axially provided with mounting groove 51. The connecting rod 23 is fixedly inserted into the mounting groove 51. The first clamping tooth 24 is embedded into the application head 50. The connecting rod 23 and the first clamping tooth 24 extend downward along the end wall of the inner ring 22. Optionally, a plurality of first clamping teeth 24 are disposed along a circumferential direction of the end wall of the inner ring 22. Distances between every two adjacent first clamping teeth 24 are the same.

As shown in FIG. 2 and FIGS. 12-17, a first end of the fixing ring 30 is fixedly sleeved on the inner ring 22. In the embodiment, the first end of the fixing ring 30 is snap-fitted and fixedly connected to the second outer sidewall 27. A second end of the fixing ring 30 extends radially inward to form clamping plate 31. The clamping plate 31 extends along an axial direction of the fixing ring 30 to form second clamping tooth 32.

As shown in FIG. 2 and FIG. 25, the application head 50 includes mounting portion 53, application portion 54, and clamping groove 52. An outer sidewall of the mounting portion 53 is recessed radially inward to form the clamping groove 52. The clamping plate 31 is clamped into the clamping groove 52. The second clamping tooth 32 is embedded into the mounting portion 53. The mounting portion 53 is fixed in the mounting space.

The second clamping tooth 32 extends to an inner side of the fixing ring 30. Optionally, a plurality of second clamping teeth 32 are disposed along a circumferential direction of the clamping plate 31. Distances between every two adjacent second clamping teeth 32 are the same. In the embodiment, the inner cap 20 and the clamping plate 31 of the fixing ring 30 are used to fix the application head 50, and the first clamping tooth 24 and the second clamping tooth 32 are embedded into the application head 50, thereby improving the mounting strength of the application head 50 and effectively preventing the application head 50 from falling off. In assembly, the application head 50 is disposed on the fixing ring 30, and the inner cap 20 is inserted into the application head 50 from the upward side and pressed down, such that the first clamping tooth 24 and the second clamping tooth 32 are embedded into the mounting portion 53 of the application head 50.

As shown in FIGS. 1-5, the application portion 54 is provided with at least one planar application surface. A minimum outer diameter of the application portion 54 is greater than or equal to an outer diameter of the mounting portion 53. Optionally, a top of the application head 50 is a non-arc surface, i.e., the top of the application head 50 is a plane, so as to increase an application area of the application head 50. Two vertex angles are defined by a planar application surface of the application portion 54 and an outer wall of the application portion 54. The planar application surface and the side of the application portion can be used to apply large-area skin, and the vertex angle of the application portion 54 can be used to trim small-area skin.

Optionally, the application head 50 is made of a porous material; and/or the application head 50 is flocked. In a possible implementation, the application head 50 is made of the porous material, and the application head 50 is directly used to absorb material in the outer bottle 60. The material may be paste, liquid, powder, etc. In another possible implementation, the application head 50 is made of a soft material. A surface of the application head 50 is flocked to absorb the material. In still another possible implementation, the application head 50 is made of the porous material. A surface of the application head 50 is flocked, and the application head 50 or the flocked surface is used to absorb the material.

As shown in FIGS. 1-5, the applicator further includes outer cap 10. The inner cap 20 is fixed inside the outer cap 10. The outer cap 10 and the inner cap 20 may be adhered by glue and fixed by a snap fit to form a cap assembly. The cap assembly may also be an integrally formed member. As shown in FIG. 5 and FIG. 25, the application head 50 is of a non-spherical structure.

As shown in FIGS. 1-5, the packaging container includes the applicator, the inner plug 40, and the outer bottle 60. The inner plug 40 is fixedly disposed in the outer bottle 60. The applicator is detachably closed onto the outer bottle 60. When the applicator is disposed on the outer bottle 60, the application head 50 is located in the inner plug 40, the inner plug 40 is in interference fit with the inner ring 22, the fixing ring 30 is located between the inner ring 22 and the inner plug 40, and the inner plug 40 is located at an inner side of the outer ring 21. A feeding hole is formed in the inner plug 40. Steel ball 64 is disposed in the outer bottle 60. The inner plug 40 is inserted into the gap between the outer ring 21 and the inner ring 22. The inner plug 40 is sleeved on the first outer sidewall 26. An inner sidewall of the inner plug 40 is airtightly attached to the first outer sidewall 26. Since the inner cap 20 and the fixing ring 30 are of a split structure, a contact area between the outer sidewall of the inner ring 22 and the inner sidewall of the inner plug 40 is reduced, thereby reducing a force of friction between them, and facilitating insertion and removal of the applicator.

In use, the material is absorbed by the application head 50 through the feeding hole in the inner plug 40, such that the application head 50 can pick up an appropriate amount of material. This brings convenience for the user, does not waste the material, and improves the use efficiency of the material.

The material is stored in the outer bottle 60. The inner plug 40 is disposed in the outer bottle 60. The application head 50 is disposed in the inner plug 40. That is, the inner plug 40 isolates the application head 50 from the material in the outer bottle 60, effectively preventing contamination of the application head on the material. Optionally, the inner cap 20 is threadedly connected to the outer bottle 60.

As shown in FIGS. 18-24, the feeding hole includes first feeding holes 43. The inner plug 40 is provided with bottom plate 42. At least one of the first feeding holes 43 is formed in the bottom plate 42. In the embodiment, there are at least two first feeding holes 43. Distances between every two adjacent first feeding holes 43 are the same.

The feeding hole further includes at least one second feeding hole 44. The at least one second feeding hole 44 is formed in a peripheral wall of the inner plug 40. The distances between every two adjacent second feeding holes 44 are the same. Before use, the packaging container is shaken, such that the material enters the inner plug 40 through the first feeding hole 43 and/or the second feeding hole 44 to be absorbed by the application head 50 or adhere to the surface of the application head 50. Therefore, an amount of material picked by the application head 50 can be effectively controlled to facilitate the makeup, and reduce the material waste. Certainly, in other embodiments, the feeding hole may only include the first feeding hole 43. Alternatively, the feeding hole only includes the second feeding hole 44.

As shown in FIG. 2, FIG. 5 and FIG. 6, internal thread 25 is provided on the inner sidewall of the outer ring 21. External thread 63 is provided on an outer sidewall of bottle shoulder 62. The inner cap 20 and the bottle shoulder 62 are threadedly connected through the internal thread 25 and the external thread 63. In other possible implementations, the inner cap 20 and the bottle shoulder 62 may be snap-fitted or magnetically fixed.

As shown in FIG. 2 and FIG. 18, a first end of the inner plug 40 extends radially outward to form convex edge 41. The bottom plate 42 is disposed at a second end of the inner plug 40. The inner plug 40 is interference-fitted into the bottle shoulder 62, and the convex edge 41 is disposed on the bottle shoulder 62. The bottle shoulder 62 is located at the inner side of the outer ring 21, the bottle shoulder 62 is threadedly connected to the outer ring 21, the inner plug 40 is located at an inner side of the bottle shoulder 62, and the inner plug 40 is airtightly attached to the bottle shoulder 62. The inner ring 22 is located at an inner side of the inner plug 40, the inner ring 22 is in interference fit with the inner plug 40, the fixing ring 30 is clamped into the inner ring 22, and the fixing ring 30 is located between the inner plug 40 and the inner ring 22.

As shown in FIG. 2, FIG. 4 and FIG. 22, an outer sidewall of the inner plug 40 extends radially outward to form protrusion 45. Groove 65 is formed along a circumferential direction of an inner sidewall of the bottle shoulder 62. The protrusion 45 is embedded into the groove 65. The protrusion 45 is interference-fitted into the groove 65, improving the bonding strength and sealing performance between the inner plug 40 and the bottle shoulder 62.

As shown in FIG. 1 and FIG. 4, the outer bottle 60 includes bottle body 61 and the bottle shoulder 62 disposed in the bottle body 61. A material of the inner plug 40 includes a first material. A material of the bottle shoulder 62 includes a second material. Hardness of the first material is less than hardness of the second material.

The inner cap 20 is detachably closed onto the bottle shoulder 62. Steel ball 64 is disposed in the bottle body 61. Optionally, the bottle body 61 and the bottle shoulder 62 are of an integrally formed structure. Alternatively, the bottle body 61 and the bottle shoulder 62 are of a split structure. The bottle body 61 is configured to store material. The steel ball 64 is configured to stir the material when the bottle body 61 is shaken, such that the material is mixed uniformly and is not layered.

In the present disclosure, the inner plug 40 and the bottle shoulder 62 are of a split structure, and hardness of the bottle shoulder 62 is greater than hardness of the inner plug 40. The bottle shoulder 62 with higher hardness is attached to the inner cap 20, and the inner plug 40 with elasticity is disposed between the bottle shoulder 62 and the inner cap 20, which not only meets a bonding strength between the bottle shoulder 62 and the inner cap 20, but also can meet requirements on the sealing performance of the outer bottle 60, and prolongs a shelf life of the material. If the inner plug and the bottle shoulder are made of a same material to form an integral piece, and if a hard material is used, the requirement on the strength of the bottle shoulder is met, while the sealing performance of the outer bottle cannot be balanced. Similarly, when an elastic material is used, the sealing performance of the outer bottle is met, while the requirement on the strength of the bottle shoulder cannot be balanced.

It should be noted that those of ordinary skill in the art can further make variations and improvements without departing from the conception of the present disclosure. These variations and improvements all fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the appended claims.

Claims

What is claimed is:

1. An applicator, comprising: an inner cap, a fixing ring, and an application head, wherein the inner cap comprises an outer ring and an inner ring that are fixedly connected; the application head is fixedly connected to the inner ring; the fixing ring is fixedly sleeved on an outer side of the inner ring; the inner ring has an end wall sealed; and the fixing ring and the end wall jointly define a mounting space for the application head.

2. The applicator according to claim 1, wherein the inner ring comprises a first outer sidewall and a second outer sidewall; the second outer sidewall is recessed inward from the first outer sidewall along a radial direction of the inner ring; and the fixing ring is sleeved on the second outer sidewall.

3. The applicator according to claim 1, wherein a first clamping tooth is disposed on the end wall of the inner ring; the end wall is provided with a connecting rod that extends axially; the application head is axially provided with a mounting groove; the connecting rod is fixedly inserted into the mounting groove; and the first clamping tooth is embedded into the application head.

4. The applicator according to claim 1, wherein a first end of the fixing ring is fixedly sleeved on the inner ring; a second end of the fixing ring extends radially inward to form a clamping plate; and the clamping plate extends along an axial direction of the fixing ring to form a second clamping tooth.

5. The applicator according to claim 4, wherein the application head comprises a mounting portion, an application portion, and a clamping groove; an outer sidewall of the mounting portion is recessed radially inward to form the clamping groove; the clamping plate is clamped into the clamping groove; the second clamping tooth is embedded into the mounting portion; and the mounting portion is fixed in the mounting space.

6. The applicator according to claim 5, wherein the application portion is provided with at least one planar application surface; and a minimum outer diameter of the application portion is greater than or equal to an outer diameter of the mounting portion.

7. The applicator according to claim 1, wherein the application head is made of a porous material; and/or the application head is flocked.

8. A packaging container, comprising: the applicator according to claim 1, an inner plug, and an outer bottle, wherein the inner plug is fixedly disposed in the outer bottle; the applicator is detachably closed onto the outer bottle; when the applicator is disposed on the outer bottle, the application head is located in the inner plug, the inner plug is in interference fit with the inner ring, the fixing ring is located between the inner ring and the inner plug, and the inner plug is located at an inner side of the outer ring; a feeding hole is formed in the inner plug; and a steel ball is disposed in the outer bottle.

9. The packaging container according to claim 8, wherein the feeding hole comprises first feeding holes; the inner plug is provided with a bottom plate; and at least one of the first feeding holes is formed in the bottom plate; and/or

the feeding hole comprises at least one second feeding hole; and the at least one second feeding hole is formed in a peripheral wall of the inner plug.

10. The packaging container according to claim 8, wherein the outer bottle comprises a bottle body and a bottle shoulder fixedly disposed in the bottle body; a material of the inner plug comprises a first material; a material of the bottle shoulder comprises a second material; and hardness of the first material is less than hardness of the second material.

11. The packaging container according to claim 8, wherein in the applicator, the inner ring comprises a first outer sidewall and a second outer sidewall; the second outer sidewall is recessed inward from the first outer sidewall along a radial direction of the inner ring; and the fixing ring is sleeved on the second outer sidewall.

12. The packaging container according to claim 8, wherein in the applicator, a first clamping tooth is disposed on the end wall of the inner ring; the end wall is provided with a connecting rod that extends axially; the application head is axially provided with a mounting groove; the connecting rod is fixedly inserted into the mounting groove; and the first clamping tooth is embedded into the application head.

13. The packaging container according to claim 8, wherein in the applicator, a first end of the fixing ring is fixedly sleeved on the inner ring; a second end of the fixing ring extends radially inward to form a clamping plate; and the clamping plate extends along an axial direction of the fixing ring to form a second clamping tooth.

14. The packaging container according to claim 13, wherein in the applicator, the application head comprises a mounting portion, an application portion, and a clamping groove; an outer sidewall of the mounting portion is recessed radially inward to form the clamping groove; the clamping plate is clamped into the clamping groove; the second clamping tooth is embedded into the mounting portion; and the mounting portion is fixed in the mounting space.

15. The packaging container according to claim 14, wherein in the applicator, the application portion is provided with at least one planar application surface; and a minimum outer diameter of the application portion is greater than or equal to an outer diameter of the mounting portion.

16. The packaging container according to claim 8, wherein in the applicator, the application head is made of a porous material; and/or the application head is flocked.

17. The packaging container according to claim 11, wherein the feeding hole comprises first feeding holes; the inner plug is provided with a bottom plate; and at least one of the first feeding holes is formed in the bottom plate; and/or

the feeding hole comprises at least one second feeding hole; and the at least one second feeding hole is formed in a peripheral wall of the inner plug.

18. The packaging container according to claim 12, wherein the feeding hole comprises first feeding holes; the inner plug is provided with a bottom plate; and at least one of the first feeding holes is formed in the bottom plate; and/or

the feeding hole comprises at least one second feeding hole; and the at least one second feeding hole is formed in a peripheral wall of the inner plug.

19. The packaging container according to claim 13, wherein the feeding hole comprises first feeding holes; the inner plug is provided with a bottom plate; and at least one of the first feeding holes is formed in the bottom plate; and/or

the feeding hole comprises at least one second feeding hole; and the at least one second feeding hole is formed in a peripheral wall of the inner plug.

20. The packaging container according to claim 14, wherein the feeding hole comprises first feeding holes; the inner plug is provided with a bottom plate; and at least one of the first feeding holes is formed in the bottom plate; and/or

the feeding hole comprises at least one second feeding hole; and the at least one second feeding hole is formed in a peripheral wall of the inner plug.

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