A dip-in eyeliner

Abstract

The application discloses a dip type eyeliner pen, which comprises a pen body and a pen cap, the end of the pen head of the pen body is connected with a brush head, the pen cap is provided with a sealing valve door which divides the pen cap into a liquid storage cavity used for storing ink and a sleeving cavity which is sleeved on the pen head, and the sealing valve door is provided with an elastic valve port which enables the brush head to be inserted into the liquid storage cavity when the pen cap is sleeved on the pen head and enables the elastic valve port to be automatically closed when the pen cap is separated from the pen head. In this way, the liquid storage cavity used for storing ink is arranged in the pen cap, a separate ink bottle is not needed, and the dip type eyeliner pen is convenient to carry. The liquid storage cavity is communicated with the sleeving cavity, the brush head is directly immersed to take liquid, no filtering and retaining are needed, cosmetic raw materials are completely reserved, and the color development and flash piece makeup effect are better. The sealing valve door is sealed by adopting a silica gel material, the sealing valve door has strong elastic performance, the elastic valve port is closed to prevent leakage in a normal state, the sealing valve door is wrapped around the brush head when the brush head is inserted, only the brush head is provided with ink and the side edge is not permeated with liquid, and the elastic valve port is quickly rebounded to be locked and prevented from leaking after the brush head is pulled out.

Description

Technical Field

[0001] This invention relates to the field of cosmetics, and more specifically to a dip-type eyeliner. Background Technology

[0002] Eyeliner pencils are widely used due to their advantages such as precise line drawing, stable wear, and smudge-proof properties. Current eyeliner pencils employ an ink-guiding structure with an adjuster and a water-guiding core. This structure is suitable for the ink dispensing and control requirements of traditional black eyeliner inks, resulting in even ink distribution and structural stability. However, this ink-guiding structure has poor compatibility with pearlescent, colored, and especially white eyeliner ink formulations, exhibiting inherent structural defects that easily lead to abnormal ink dispensing and substandard final makeup effects. Specifically, pearlescent eyeliner ink formulations contain large-particle pearlescent powder and high-molecular film-forming agents, while the color-developing fillers used in white and colored eyeliner inks have significantly higher particle size and overall density than conventional black eyeliner pigments. The existing ink guiding structure's regulator micropores and water-guiding core fiber pores can trap and filter the aforementioned powders and functional components, making it difficult for pearlescent powder, color developing powder, and film-forming agents to be output normally with the ink. Only low-concentration base additives can be output smoothly, ultimately causing problems such as separation of effective ink components and uneven output, which cannot meet the production and use requirements of high-quality color and pearlescent eyeliner ink pens. Summary of the Invention

[0003] Based on this, and in response to the aforementioned technical problems, the present invention provides a dip-type eyeliner.

[0004] The objective of this invention can be achieved through the following technical solutions: A dip-type eyeliner includes a pen body and a pen cap. The pen body has a brush head connected to the end of the pen tip. The pen cap is provided with a sealing valve that divides the interior of the pen cap into a reservoir for storing ink and a fitting cavity that fits onto the pen tip. The sealing valve has an elastic valve opening that allows the brush head to be inserted into the reservoir when the pen cap is fitted onto the pen tip and can automatically close when the pen cap is removed from the pen tip.

[0005] Using the above technical solution, the ink reservoir is directly located inside the pen cap, eliminating the need for a separate ink bottle. The overall structure is compact and easy to carry. Secondly, the reservoir is connected to the connecting cavity, allowing the brush head to directly dip into the ink. Pearlescent powder, white color developer, and film-forming agent are not trapped or filtered, preserving the original formula components. This results in ample pearlescent shimmer and high white color saturation, avoiding the degradation of makeup effects seen in existing ink-guiding structures. Furthermore, the elastic valve itself has strong elasticity. In the absence of external force and with the brush head not inserted or removed, the elastic valve will be tightly closed by its own elasticity, forming a sealing barrier, preventing ink from leaking out of the reservoir. When the brush head passes through the flexible valve to draw ink, the sealing valve deforms to conform to the shape of the brush head. The flexible valve ensures a tight seal against the outer surface of the brush head, preventing ink from leaking out from the edges of the valve. Once the brush head is completely removed, the flexible valve quickly rebounds and closes automatically, preventing ink leakage. Furthermore, the detachable cap and nib design allows for easy separation of the brush head and ink reservoir, facilitating brush head cleaning and replacement with different ink colors.

[0006] In a specific embodiment of the present invention, when the pen cap is fitted onto the pen head, the brush tip of the brush head is inserted into the liquid storage cavity.

[0007] In a specific embodiment of the present invention, the sealing valve is made of silicone. This silicone sealing valve is flexible, resistant to the corrosion of oily components in ink, and will not undergo permanent deformation even after repeated insertion and removal of the brush head. It can maintain the sealing and fit of the elastic valve opening for a long time, ensuring a long-lasting leak-proof effect.

[0008] In a specific embodiment of the present invention, the sealing valve includes a circular elastic valve diaphragm located in the middle and an annular connecting part integrally connected to the outer edge of the elastic valve diaphragm, and the elastic valve port is a cross-shaped cut line disposed in the middle of the elastic valve diaphragm.

[0009] In a specific embodiment of the present invention, the inner wall of the pen cap is further provided with an annular support plate for supporting the sealing valve. The end face of the support plate facing the liquid storage cavity has an annular protrusion. The connecting part has an annular groove that cooperates with the annular protrusion. A limiting protrusion for locking the sealing valve is also provided on the inner wall of the liquid storage cavity above the sealing valve.

[0010] In a specific embodiment of the present invention, the connecting portion includes an upright first connecting segment, a second connecting segment erected at intervals outside the first connecting segment, and a third connecting segment horizontally connected to the upper edges of the first and second connecting segments, wherein the first connecting segment, the second connecting segment, and the third connecting segment form the annular groove.

[0011] In a specific embodiment of the present invention, a limiting protrusion for locking the sealing valve is also provided on the inner wall of the liquid storage cavity above the elastic membrane.

[0012] In a specific embodiment of the present invention, the support plate further includes a retainer extending into the sleeve cavity and fitting onto the conical section of the pen tip. The retainer has an inner cavity, and the inner wall of this cavity has an annular protrusion that conforms to the outer wall of the conical section. Thus, when the pen tip is inserted into the sleeve cavity, the annular protrusion of the retainer conforms to the outer wall of the conical section of the pen tip, forming a sealing structure. This reduces the space inside the pen cap used to house the brush head, thereby significantly reducing the amount of air remaining inside the pen cap after the pen cap and pen tip are fastened together. This extends the time required for the ink on the brush head to dry after sealing, increasing the wetting time of the brush head.

[0013] In a specific embodiment of the present invention, the brush head is made of PBT material or polyester fiber material.

[0014] In summary, this invention integrates the ink reservoir inside the pen cap, eliminating the need for a separate ink bottle and facilitating portability. Secondly, the reservoir is connected to the connecting cavity, allowing the brush head to directly dip into the ink without filtration, preserving the makeup ingredients completely and resulting in better color rendering and glitter effects. Furthermore, the brush head is made of PBT material, which is wear-resistant, deformation-resistant, and does not shed bristles during use, allowing for repeated ink application over extended periods. The reservoir is sealed with a silicone valve, which is highly elastic and automatically closes to prevent leakage under normal conditions. When the brush is inserted, the valve fits snugly around the brush head, ensuring only the brush head carries ink and preventing leakage from the sides. After removal, the valve quickly springs back to lock, preventing leakage. A clip inside the pen cap reduces the space required for brush head storage, minimizes internal air, and slows down ink drying. Attached Figure Description

[0015] The present invention will now be further described with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of a dip-type eyeliner pen according to the present invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This shows the tail end of the brush head installed in the mounting cavity of the pen tip; Figure 4 This shows that the brush head is hidden; Figure 5 This is a schematic diagram of the structure of the brush head of the present invention; Figure 6 This is a cross-sectional view of the pen cap of the present invention; Figure 7 This is a schematic diagram of the sealing valve of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1 As shown, the present invention is a dip-type eyeliner pen, comprising a pen body 10, a brush head 20, and a pen cap 30. Both the pen body 10 and the pen cap 30 are made of plastic.

[0019] like Figure 3 and Figure 4 As shown, the pen body 10 includes a pen tip 11 and a pen barrel 12 integrally connected to the lower part of the pen tip. The pen tip 11 is divided into a conical section 111 and a cylindrical section 112 located at the lower part of the conical section 111 from top to bottom. A brush head mounting cavity 13 is opened inside the conical section 111, and an opening 14 is provided at the upper end of the mounting cavity 13. Multiple axially extending protrusions 131 are evenly distributed on the inner wall of the mounting cavity 13. When the brush head 20 is installed in the mounting cavity 13, the multiple protrusions 131 abut against the outer wall of the brush head 20 at multiple points, preventing the brush head 20 from rotating circumferentially in the mounting cavity 13. When applying makeup with force, the brush head 20 does not loosen or tilt, and the lines drawn are stable.

[0020] In this embodiment, the brush head 20 is made of PBT material or polyester fiber material. Brush heads made of these materials are wear-resistant, deformation-resistant, and do not shed easily.

[0021] like Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, the brush head 20 includes a tapered brush tip 21 and a cylindrical body 22. The tail end of the cylindrical body 22 is inserted into the mounting cavity 13, and the brush tip 21 extends upward out of the mounting cavity 13.

[0022] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, a silicone sealing valve 40 is provided inside the pen cap 30. This sealing valve 40 divides the interior of the pen cap 30 into a fitting cavity 31 and a liquid storage cavity 41. The fitting cavity 31 is used to fit onto the pen tip 11. The liquid storage cavity 41 is used to store ink. A plug 42 is provided at the upper port of the liquid storage cavity 41 to seal the upper port. The sealing valve 40 has a resilient valve port 44. When the fitting cavity 31 of the pen cap 30 is fastened onto the pen tip 11, the brush tip 20 can pass through the resilient valve port 44 and extend into the liquid storage cavity 41; when the pen tip 11 is separated from the pen cap 30 and pulled out, the sealing valve 40 automatically closes the resilient valve port 44 due to its own elasticity.

[0023] In this way, the ink reservoir is also located inside the pen cap 30, eliminating the need for a separate ink bottle. The overall structure is compact and easy to carry. Secondly, the ink reservoir 41 is connected to the socket 31, allowing the brush tip 21 of the brush head 20 to directly dip into the ink reservoir 41 to pick up the ink. Pearl powder, white color developer, and film-forming agent are not trapped or filtered, preserving the original components of the formula. This results in ample pearl shimmer and high white color saturation, avoiding the defects of existing ink guiding structures that lead to poor makeup effects. Furthermore, the silicone sealing valve 40 possesses strong elasticity. In its natural state without external force and with the brush head not inserted or removed, the elastic valve port 44 is tightly closed by the silicone's own elasticity, with its edges completely fitting together to form a sealing barrier, preventing ink in the reservoir from leaking out through the closed elastic valve port 44. When the brush head 20 passes through the elastic valve port 44 to draw ink, the flexible silicone sealing valve deforms with the shape of the brush head, allowing the elastic valve port 44 to fit tightly against the outer surface of the brush head 20, ensuring that ink can only be drawn out by the brush head 20 and not leak out. After the brush head 20 is completely removed, the silicone quickly rebounds due to its elasticity, and the elastic valve port 44 automatically closes, preventing ink leakage. In addition, the silicone sealing valve is flexible and resistant to the corrosion of the oily components of ink. It will not undergo permanent deformation even after repeated insertion and removal of the brush head, maintaining the sealing ability of the elastic valve port for a long time and ensuring a long-lasting leak-proof effect. In addition, the detachable cap and nib design allows for direct separation of the brush head and ink reservoir cap, facilitating brush head cleaning and replacement with different ink colors.

[0024] like Figure 2 and Figure 7 As shown, the sealing valve 40 includes a circular elastic valve diaphragm 431 located in the middle and an annular connecting portion 432 integrally connected to the outer edge of the elastic valve diaphragm 431. In this embodiment, the elastic valve port 44 is a cross-shaped cut line located in the middle of the elastic valve diaphragm 431.

[0025] like Figure 2 , Figure 6 and Figure 7 As shown, an annular support plate 45 for supporting the sealing valve 40 is also provided on the inner wall of the pen cap 30. An annular protrusion 46 is provided on the end face of the support plate 45 facing the liquid storage cavity 41. An annular groove 47 that mates with the annular protrusion 46 is provided on the connecting portion 432. Specifically, the connecting portion 432 includes an upright first connecting section 4321, a second connecting section 4322 erected at intervals outside the first connecting section, and a third connecting section 4323 connected horizontally to the upper edges of the first connecting section 4321 and the second connecting section 4322. The first connecting section 4321, the second connecting section 4322, and the third connecting section 4323 together form the aforementioned annular groove 47.

[0026] A limiting protrusion 48 for locking the sealing valve 40 is also provided on the inner wall of the liquid storage chamber 41 above the sealing valve 40.

[0027] like Figure 2 As shown, in this embodiment, the support plate 45 also has a retainer 32 extending into the sleeve cavity 31 and fitting onto the conical segment 111 of the pen tip 11. The retainer 32 has a flared inner cavity that adapts to the outer contour of the conical segment 111. An annular protrusion 321, which fits against the outer wall of the conical segment 111, is located on the inner wall of the retainer 32's inner cavity. Here, the annular protrusion 321 is in line contact with the outer wall of the conical segment 111. When the pen cap 30 is fastened onto the pen tip 11, the base of the retainer 32 is integrally connected to the support plate. The retainer 32 is elastic, allowing the conical section 111 of the pen tip 11 to extend into the retainer 32. The annular protrusion 321 of the retainer 32 fits against the outer wall of the conical section 111 to form a sealing structure, which can reduce the space inside the pen cap 30 used to store the brush head 20. This significantly reduces the amount of air remaining inside the pen cap 30 after it is fastened to the pen tip 11, prolongs the time required for the ink on the brush head to dry after sealing, and increases the wetting time of the brush head.

[0028] like Figure 1 , Figure 3 and Figure 6 As shown, in this embodiment, a step 16 is provided at the junction of the pen tip 11 and the pen barrel 12. When the pen cap 30 is fastened to the pen tip 11, the pen tip 11 extends into the sleeve cavity 31 of the pen cap 30, and the lower end face of the pen cap 30 abuts against the step 16 and is stopped and limited by the step 16. The pen tip 11 extends into the pen cap 30, and a ring-shaped rib 33 is provided on the circumference of the pen tip 11. An annular groove 34 adapted to the rib 33 is provided on the inner wall of the sleeve cavity 31 of the pen cap 30. In this way, the rib 33 is engaged in the annular groove 34, making it difficult for the pen tip 11 and the pen cap 30 to fall off.

[0029] The above describes a dip-type eyeliner pen of the present invention. In use, hold the pen handle 12 and pull the pen cap 30 outwards. The annular ribs 33 on the outer periphery of the pen tip 11 disengage from the annular groove 34 on the inner wall of the pen cap sleeve cavity 31, releasing the locking and limiting relationship between the pen cap 30 and the pen tip 11. The pen tip 11 and pen cap 30 are completely separated, and the brush head 20 detaches from the pen cap 30 along with the pen tip. After separation, eyeliner can be drawn directly. The multiple protruding ribs 131 on the inner wall of the pen tip 11 mounting cavity 13 press against the outer wall of the cylindrical portion 22 of the brush head 20 at multiple points, restricting the circumferential rotation of the brush head. When applying makeup with force, the brush head remains straight and stable, producing a smooth and consistent eyeliner line.

[0030] When ink needs to be applied, hold the pen barrel 12 with one hand and the pen cap 30 with the other. Insert the pen tip 11 into the pen cap 30. The brush tip 21 of the brush head 20 passes through the elastic valve port 44 on the sealing valve 40 and extends into the liquid storage chamber 41. The brush tip of the brush head 20 is immersed in the eyeliner ink stored in the liquid storage chamber 41 to complete the ink application. The sealing valve 40 is elastic. When the brush tip of the brush head 20 passes through the elastic valve port 44, the elastic valve port expands with the shape of the brush head 20 and tightly wraps around the outer wall of the brush head 20, allowing only ink to adhere to the surface of the brush head and be carried out. During the process of pulling the brush head 20 outward after application, the elastic valve port 44 can scrape off the excess ink adhering to the surface of the brush head, preventing excessive ink dripping and smudging. After the brush head 20 is completely pulled out, the sealing valve 40, relying on its own elasticity, automatically closes the elastic valve port 44, sealing the liquid storage chamber 41 and preventing internal ink leakage.

[0031] After drawing, align the pen cap 30 with the pen tip 11 and fasten it. Insert the conical section 111 of the pen tip 11 into the pen cap sleeve 32. The rear end face of the sleeve 32 fits against the outer wall of the conical section 111. The brush tip of the brush head 20 passes through the elastic valve port 44 and is inserted into the liquid storage chamber 41. The rear end face of the pen cap abuts against the step 16 at the junction of the pen tip and the pen body 10 to achieve stop positioning. The annular rib 33 on the outer periphery of the pen tip 11 is inserted into the annular groove 34 on the inner wall of the pen cap to form a tight fit and prevent the pen cap from accidentally coming loose.

[0032] In summary, this invention integrates the ink reservoir inside the pen cap, eliminating the need for a separate ink bottle and facilitating portability. Secondly, the reservoir is connected to the connecting cavity, allowing the brush head to directly dip into the ink without filtration, preserving the makeup ingredients completely and resulting in better color rendering and glitter effects. Furthermore, the brush head is made of PBT material, which is wear-resistant, deformation-resistant, and does not shed bristles during use, allowing for repeated ink application over extended periods. The reservoir is sealed with a silicone valve, which is highly elastic and automatically closes to prevent leakage under normal conditions. When the brush is inserted, the valve fits snugly around the brush head, ensuring only the brush head carries ink and preventing leakage from the sides. After removal, the valve quickly springs back to lock, preventing leakage. A clip inside the pen cap reduces the space required for brush head storage, minimizes internal air, and slows down ink drying.

[0033] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A dip-type eyeliner, comprising a pen body and a cap, wherein a brush head is connected to the end of the pen tip of the pen body, characterized in that, The pen cap is provided with a sealing valve that divides the interior of the pen cap into a reservoir for storing ink and a fitting cavity that fits onto the pen tip. The sealing valve has an elastic valve opening that allows the brush head to be inserted into the reservoir when the pen cap is fitted onto the pen tip and can automatically close when the pen cap is removed from the pen tip.

2. The dip-type eyeliner according to claim 1, characterized in that, When the pen cap is attached to the pen head, the tip of the brush head is inserted into the liquid reservoir.

3. The dip-type eyeliner according to claim 1, characterized in that, The sealing valve is made of silicone.

4. The dip-type eyeliner according to claim 3, characterized in that, The sealing valve includes a circular elastic valve diaphragm located in the middle and an annular connecting part integrally connected to the outer edge of the elastic valve diaphragm. The elastic valve port is a cross-shaped cut line located in the middle of the elastic valve diaphragm.

5. The dip-type eyeliner according to claim 4, characterized in that, The inner wall of the pen cap is also provided with an annular support plate for supporting the sealing valve. The end face of the support plate facing the liquid storage cavity has an annular protrusion. The connecting part has an annular groove that matches the annular protrusion. A limiting protrusion for locking the sealing valve is also provided on the inner wall of the liquid storage cavity above the sealing valve.

6. The dip-type eyeliner according to claim 5, characterized in that, The connecting portion includes an upright first connecting segment, a second connecting segment spaced apart and upright outside the first connecting segment, and a third connecting segment horizontally connected to the upper edges of the first and second connecting segments, the first connecting segment, the second connecting segment, and the third connecting segment forming the annular groove.

7. The dip-type eyeliner according to claim 5, characterized in that, The support plate also has a sleeve that extends into the sleeve cavity and fits onto the conical section of the pen tip. The sleeve has a flared inner cavity that matches the outer contour of the conical section. The inner wall of the inner cavity has an annular protrusion that fits against the outer wall of the conical section.

8. The dip-type eyeliner according to claim 1, characterized in that, The brush head is made of PBT material or polyester fiber material.

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