Cosmetic pencil

By adopting the design of interference fit between the inner sleeve and the pen tip in the cosmetic pen, combined with sealing ribs and limiting rings, the problem of cosmetic liquid leakage is solved, and the sealing and convenience of the cosmetic pen are achieved.

CN223392105UActive Publication Date: 2025-09-30NINGBO XINXIN COSMETICS PACKAGING CO LTD
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Patent Information

Application Number
CN202422466733.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2025-09-30
Estimated Expiration
2034-10-12

AI Technical Summary

Technical Problem

When using existing cosmetic brushes, cosmetic liquid easily leaks out from the gap between the brush holder and the pen holder, causing contamination of the brush holder, the pen holder and the human body.

Method used

A cosmetic pen is designed, which adopts a structure of interference fit between an inner sleeve and a pen tip. A sealing rib and a limiting ring are provided in the inner sleeve, and a sealed cavity is formed between the pen tip and the pen body through a sealing groove to ensure that the cosmetic medium does not leak out.

Benefits of technology

It effectively prevents makeup liquid from leaking from the pen tip, avoids contaminating the brush holder, pen holder and human body, and improves the safety and convenience of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a cosmetic brush which comprises a brush holder which is a hollow shell with at least one open end. The pen point is hermetically assembled at the open end of the pen holder, and a pen point extends out of the pen holder; makeup media are arranged in the pen holder and can be guided into the pen point; the pen cap is detachably arranged at the open end of the pen holder in a sleeving mode, and a containing cavity is formed between the pen cap and the pen holder; the pen point is positioned in the accommodating cavity; an inner sleeve is movably arranged in the pen sleeve, the pen point extends into the inner sleeve and is in interference fit with the inner sleeve, and the tip end of the pen point is contained in a sealed mode. Compared with the prior art, the cosmetic pen has the advantages that the inner sleeve is arranged, when the cosmetic pen is stored, the pen point is sleeved with the pen sleeve, at least most of the pen point is located in the inner sleeve, the inner sleeve is in interference fit with the pen point, and therefore cosmetic media on the pen point cannot seep out of the inner sleeve to cause liquid leakage.
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Description

Technical Field

[0001] The utility model relates to the technical field of cosmetics, in particular to a cosmetic brush. Background Art

[0002] Nowadays, liquid makeup products such as lip balm, lip gloss, concealer oil, etc. have been widely used by consumers, especially liquid makeup pens, which are deeply loved by consumers because of their ease of use and good effects.

[0003] The Chinese patent application number is 202020307489.8, and the publication date is December 11, 2020. The utility model name is Ultra-fine Straight Liquid Eyeliner Pencil, which has the advantages of small diameter, small space occupation, easy to carry, and can reduce the probability of brush splitting, reducing the burden on staff. Its disadvantage is that the brush holder is externally connected to the front end of the pen holder. When the user pulls the brush holder outward, the makeup liquid easily leaks from the gap between the brush holder and the pen holder and flows to the outside of the brush holder and the pen holder, which may contaminate the brush holder, the pen holder and the human body. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a cosmetic brush.

[0005] The above-mentioned problem of the present invention is solved by the following technical solutions:

[0006] A cosmetic brush, comprising:

[0007] The pen holder is configured as a hollow shell with at least one end open;

[0008] The pen tip is sealed and assembled at the open end of the pen barrel, and the pen tip extends out of the pen barrel; the pen barrel is provided with a cosmetic medium that can be introduced into the pen tip;

[0009] A pen cover is detachably mounted on the open end of the pen shaft and forms a receiving cavity between the pen shaft and the pen shaft; the pen tip is located in the receiving cavity;

[0010] An inner sleeve is movably provided in the pen sleeve, and the pen tip extends into the inner sleeve and is interference-fitted with the pen tip, thereby sealing and accommodating the tip of the pen tip.

[0011] The above technical solution is further configured as follows: at least one end of the inner sleeve is configured as an open side and faces the pen tip; and a sealing rib is provided on the inner wall of the inner sleeve.

[0012] The above technical solution is further configured as follows: the receiving groove of the inner sleeve is sequentially configured as a receiving area and an introduction area, and the side wall located in the introduction area is configured as a constricted shape along the pen tip insertion direction.

[0013] The above technical solution is further configured as follows: the sealing rib is protrudingly provided on the inner wall of the connecting portion between the accommodating area and the introduction area.

[0014] The above technical solution is further configured as follows: the cross section of the sealing rib is elliptical.

[0015] The above technical solution is further configured as follows: a limiting ring is provided on the outer periphery of the inner sleeve, and limiting ribs for limiting displacement with the limiting ring are provided inside the pen sleeve.

[0016] The above technical solution is further configured as follows: a movable protrusion is provided on the end surface of the sealing side of the inner sleeve.

[0017] The above technical solution is further configured as follows: the sealing side is further formed with a balancing portion having an inner diameter larger than that of the inner sleeve, and the movable protrusion is arranged on the end face of the balancing portion.

[0018] The above technical solution is further configured as follows: the outer diameter of the inner sleeve is smaller than the inner diameter of the pen cover.

[0019] The above technical solution is further configured as follows: a sealing groove capable of accommodating a sealing ring is provided on the outer periphery of the tail of the pen tip, the pen tip and the pen holder are sealed by a sealing cavity, and a solution cavity is formed in the pen holder.

[0020] Compared with the prior art, the beneficial effect of the present invention is that an inner sleeve is provided, and when the pen is stored, the pen sleeve is put onto the pen tip so that at least most of the pen tip is located in the inner sleeve, and there is an interference fit between the inner sleeve and the pen tip, so that the cosmetic medium on the pen tip cannot seep out of the inner sleeve and cause leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the exploded structure of the present invention.

[0022] Figure 2 It is a structural diagram of the inner sleeve on the opening side.

[0023] Figure 3 It is a schematic diagram of the structure with the inner sleeve on the sealing side.

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure at the first angle.

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure at the second angle.

[0026] The accompanying drawings are marked with: 100, penholder;

[0027] 200, pen tip; 210, pen tip; 201, sealing groove;

[0028] 300, pen cap; 310, limiting rib;

[0029] 400, inner sleeve; 410, sealing rib; 401, introduction area; 402, accommodation area; 420, limiting ring; 430, movable protrusion; 440, balancing part; 450, connecting rib. DETAILED DESCRIPTION

[0030] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0031] like Figure 1-Figure 5 As shown, this embodiment discloses a cosmetic pen.

[0032] A cosmetic brush, comprising:

[0033] The pen holder 100 is configured as a hollow shell with at least one end open;

[0034] The pen head 200 is sealed and assembled at the open end of the pen body 100, and the pen tip 210 extends out of the pen body 100; the pen body 100 is provided with a cosmetic medium that can be introduced into the pen tip 210;

[0035] The pen cover 300 is detachably mounted on the open end of the pen body 100 and forms a receiving cavity between the pen cover 300 and the pen body 100; the pen tip 200 is located in the receiving cavity;

[0036] An inner sleeve 400 is movably provided in the pen cover 300 , and the pen tip 210 extends into the inner sleeve 400 , and is interference-fitted with the pen tip 210 , thereby sealing and accommodating the tip of the pen tip 210 .

[0037] The above is the basic solution of this embodiment.

[0038] Specific reference Figure 1 As shown, the cosmetic medium is stored in the pen body 100 and is guided to the pen tip 210 through the pen head 200 to soak the pen tip 210 , and the user applies makeup through the pen tip 210 ;

[0039] When storing, the pen cover 300 is put on the pen tip 210 so that at least most of the pen tip 210 is located in the inner cover 400, and there is an interference fit between the inner cover 400 and the pen tip 210, so that the cosmetic medium on the pen tip 210 cannot seep out of the inner cover 400 and cause leakage.

[0040] In this embodiment, in order to ensure that various pen tips 210 can be inserted into the inner sleeve 400, a movable connection is set between the inner sleeve 400 and the pen cover 300. In this embodiment, a rotating connection is preferably used, that is, the inner sleeve 400 can rotate inside the pen cover 300, which is convenient for the user to apply force to the pen cover 300 when covering the pen cover 300, and rotate the pen cover 300 without the inner sleeve 400 rotating, thereby ensuring the connection between the inner sleeve 400 and the pen tip 210.

[0041] Preferably, at least one end of the inner sleeve 400 is set as an open side and faces the pen tip 210; a sealing rib 410 is provided on the inner wall of the inner sleeve 400.

[0042] Specific reference Figure 2 As shown, the sealing rib 410 is protruded from the inner wall of the inner sleeve 400 .

[0043] Preferably, in this embodiment, in order to facilitate the introduction of the pen tip 210 into the inner sleeve 400, the receiving groove of the inner sleeve 400 is sequentially configured as a accommodating area 402 and an introduction area 401; and the side wall located in the introduction area 401 is configured as a constricted shape along the insertion direction of the pen tip 210.

[0044] Specific reference Figure 2 As shown, the introduction area 401 is configured as a constricted opening, the outer end is larger than the inner end, and the inner end is connected to the accommodating area 402;

[0045] When the pen tip 210 is inserted, the introduction area 401 guides the pen tip 210 so that the tip of the pen tip 210 can smoothly enter the connecting portion, thereby allowing the entire pen tip 210 to enter the accommodating area 402;

[0046] At this time, the sealing rib 410 is interference-fitted with the rear portion of the pen tip 210 , sealing the tip of the pen tip 210 within the accommodating area 402 .

[0047] Preferably, the sealing rib 410 is protrudingly provided on the inner wall of the connecting portion between the accommodating area 402 and the introduction area 401 .

[0048] Preferably, in this embodiment, the cross-section of the sealing rib 410 is elliptical.

[0049] The cross-section of the sealing rib 410 is set to be an ellipse. At the same time, the cross-section of the accommodating area 402 is also an ellipse. That is, the accommodating area 402 has a minimum inner diameter and a maximum inner diameter. When pen tips 210 of different diameters are accommodated in the inner sleeve 400, the sealing rib 410 can contact and cooperate with them to prevent the pen tip 210 and the inner sleeve 400 from being unable to be fastened, causing the pen cover 300 to fall off the pen tip 210.

[0050] At the same time, the accommodating area 402 can also accommodate a special-shaped pen tip 210 , such as an elliptical pen tip 210 that fits the accommodating area 402 .

[0051] In this embodiment, in order to prevent the inner sleeve 400 from falling out of the pen cover 300 , a limiting ring 420 is provided on the outer periphery of the inner sleeve 400 , and a limiting rib 310 is provided inside the pen cover 300 for limiting the displacement of the limiting ring 420 .

[0052] Specific reference Figure 2 、 Figure 4 and Figure 5 As shown, the outer diameter of the limiting ring 420 is consistent with the inner diameter of the pen cover 300, or slightly smaller than the pen cover 300, so as to reduce the friction generated when the inner cover 400 rotates; the limiting rib 310 is formed on the inner wall of the pen cover 300, and the diameter of the limiting ring formed at its end is smaller than the outer diameter of the limiting ring 420, thereby limiting the limiting ring 420 to the upper part of the pen cover 300, preventing the limiting ring 420 from falling out of the pen cover 300.

[0053] In this embodiment, in order to further reduce the friction between the inner sleeve 400 and the inner wall of the pen cover 300 , a movable protrusion 430 is provided on the end surface of the sealing side of the inner sleeve 400 .

[0054] Specific reference Figure 3 The movable protrusion 430 is a hemispherical convex portion formed on the sealing side. The movable protrusion 430 separates the sealing side of the inner sleeve 400 from the inner wall of the pen cover 300, so that the sealing side of the inner sleeve 400 and the pen cover 300 do not contact each other, thereby reducing the friction generated when the inner sleeve 400 rotates.

[0055] Preferably, the sealing side is further formed with a balancing portion 440 whose inner diameter is larger than that of the inner sleeve 400 , and the movable protrusion 430 is arranged on the end surface of the balancing portion 440 .

[0056] Specific reference Figure 3 As shown, the outer diameter of the inner sleeve 400 is much smaller than the inner diameter of the pen cover 300. Therefore, a balancing part 440 is provided on the sealing side of the inner sleeve 400. The balancing part 440 is an end face integrally formed with the inner sleeve 400 and extending radially outward. The diameter of the balancing part 440 is slightly smaller than the inner diameter of the pen cover 300 or is consistent with the inner diameter of the pen cover 300.

[0057] In this way, when the inner sleeve 400 rotates in the pen cover 300, its sealing side will not shake in the pen cover 300 due to the setting of the balancing part 440, and cooperate with the limiting ring 420 to make the inner sleeve 400 rotate stably, ensuring the stability of the position of the introduction area 401 and the accommodating area 402, and the pen tip 210 can be smoothly inserted.

[0058] To ensure the strength of the balancing part 440 , in this embodiment, the balancing part 440 and the limiting ring 420 are connected via an axial connecting rib 450 , so that the balancing part 440 , the limiting ring 420 and the connecting rib 450 form an integrated structure.

[0059] To further ensure the stability of the inner sleeve 400, in this embodiment, the shape of the introduction area 401 on the inner sleeve 400 is set to be trumpet-shaped, with the small end connected to the accommodating area 402; the outer diameter of the large end is consistent with the inner diameter of the pen cover 300 or slightly smaller than the inner diameter of the pen cover 300.

[0060] In order to ensure the seal between the pen body 100 and the pen tip 200, in this embodiment, a sealing groove 201 capable of accommodating a sealing ring is provided on the outer periphery of the tail of the pen tip 200. The pen tip 200 and the pen body 100 are sealed by a sealing cavity, forming a solution cavity in the pen body 100.

[0061] Specific reference Figure 4 and Figure 5 As shown, the lower diameter of the pen tip 200 is set to be smaller than the upper diameter, so that the lower part of the pen tip 200 can be inserted into the pen body 100, and the sealing groove 201 is recessed on the outer wall of the lower part of the pen tip 200, and the sealing ring is embedded in the sealing groove 201 for installation; when the pen tip 200 is inserted into the pen body 100, an interference fit is formed between the sealing ring and the inner wall of the pen body 100, thereby sealing the solution cavity in the pen body 100.

[0062] In this embodiment, a pen core capable of absorbing cosmetic medium is provided in the solution chamber, and the pen core introduces the cosmetic medium in the pen core into the pen tip 200 .

[0063] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A cosmetic pencil comprising: A pen holder (100) is provided as a hollow shell with at least one end open; The pen head (200) is sealed and assembled at one end of the opening of the pen body (100), and the pen tip (210) extends out of the pen body (100); a cosmetic medium is provided in the pen body (100) and can be introduced into the pen tip (210); The pen cover (300) is detachably mounted on the open end of the pen shaft (100) and forms a receiving cavity between the pen cover and the pen shaft (100); the pen head (200) is located in the receiving cavity; The invention is characterized in that an inner sleeve (400) is movably provided in the pen sleeve (300), the pen tip (210) extends into the inner sleeve (400), and forms an interference fit with the pen tip (210), thereby sealing and accommodating the tip of the pen tip (210).

2. The cosmetic brush according to claim 1, characterized in that: At least one end of the inner sleeve (400) is arranged as an open side and faces the pen tip (210); and a sealing rib (410) is provided on the inner wall of the inner sleeve (400).

3. The cosmetic brush according to claim 2, characterized in that: The receiving groove of the inner sleeve (400) is sequentially configured as a receiving area (402) and an introduction area (401), and the side wall located in the introduction area (401) is configured in a constricted shape along the insertion direction of the pen tip (210).

4. The cosmetic brush according to claim 3, characterized in that: The sealing rib (410) is protrudingly provided on the inner wall of the connecting portion between the accommodating area (402) and the introduction area (401).

5. The cosmetic brush according to any one of claims 2 to 4, characterized in that: The cross section of the sealing rib (410) is elliptical.

6. The cosmetic brush according to claim 1, characterized in that: A limiting ring (420) is provided on the outer periphery of the inner sleeve (400), and a limiting rib (310) for limiting displacement with the limiting ring (420) is provided inside the pen sleeve (300).

7. The cosmetic brush according to claim 6, characterized in that: A movable protrusion (430) is provided on the end surface of the sealing side of the inner sleeve (400).

8. The cosmetic brush according to claim 7, characterized in that: The sealing side is further formed with a balancing portion (440) having an inner diameter larger than that of the inner sleeve (400), and the movable protrusion (430) is arranged on the end surface of the balancing portion (440).

9. The cosmetic brush according to claim 1, characterized in that: The outer diameter of the inner sleeve (400) is smaller than the inner diameter of the pen sleeve (300).

10. The cosmetic brush according to claim 1, characterized in that: A sealing groove (201) capable of accommodating a sealing ring is provided on the outer periphery of the tail of the pen tip (200), and the pen tip (200) and the pen holder (100) are sealed via a sealing cavity, forming a solution cavity in the pen holder (100).

Citation Information

Patent Citations

  • Ultra-thin direct-liquid type eyeliner

    CN212117401U