A multi-tip automatic balance ink-out liquid eye liner
By designing a variety of replaceable nibs and a magnetic ring locking structure, the problem of a single nib in automatic balanced ink-dispensing direct liquid eyeliner pens is solved, enabling diverse line effects and convenient replacement, improving the user experience and the stability of ink transmission.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO WUYUN PEN MFG
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-24
AI Technical Summary
Existing automatic balancing liquid eyeliners generally suffer from a limited variety of tip types, making it difficult to meet consumers' demands for diverse line effects.
A replaceable pen tip assembly was designed, including various pen tips (such as blade nibs, pointed nibs, vertical two-claw nibs, integral double-claw eagle beak nibs, single-claw eagle beak nibs, or split double-claw eagle beak nibs). Through magnetic ring locking and limit ring design, the pen tip can be flexibly adapted and easily replaced.
It achieves flexible compatibility with various pen nibs, meets the needs of different line effects, improves the user experience and applicability, ensures smooth ink transmission and uniform ink output, and simplifies the pen nib replacement process.
Smart Images
Figure CN224539681U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of beauty tool technology, and in particular to an automatic balanced ink-dispensing direct liquid eyeliner suitable for multiple pen tips. Background Technology
[0002] In the modern beauty industry, eyeliner is a key tool for shaping eye makeup, playing a vital role in enhancing the beauty of the eyes and strengthening the expressiveness of the eye contour.
[0003] Automatically balanced ink-dispensing liquid eyeliners have gained popularity among consumers due to their smooth writing and stable, even ink flow.
[0004] However, existing automatic balancing liquid ink eyeliners generally suffer from a limited variety of tip types.
[0005] During the makeup application process, consumers often expect to achieve diverse line effects through different pen tips. For example, extremely fine tips are used to outline delicate inner eyeliner, while thicker tips are used to create dramatic and striking eye makeup styles. Alternatively, uniquely shaped tips can be used to achieve unique and creative looks. However, the current limited variety of pen tip types makes it difficult to satisfy consumers' pursuit of rich and diverse line effects, restricting their creative freedom and failing to fully meet the diverse makeup needs of different consumers in different situations. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides an automatic balanced ink dispensing liquid eyeliner that can be equipped with multiple pen tips and can be flexibly and conveniently replaced, allowing consumers to easily change the pen tips according to their own needs, thereby achieving different line effects and improving the user experience and applicability of the eyeliner.
[0007] This utility model discloses an automatic balanced ink-dispensing direct-liquid eyeliner suitable for multiple nibs, comprising an outer rod with a placement cavity inside. One end of the placement cavity has an opening, and an inner rod is disposed within the placement cavity. A working chamber is located within the inner rod. A large pen tip holder is sealed and fastened to the open side of the outer rod. The open end of the inner rod is inserted into the large pen tip holder. Within the working chamber of the inner rod, from the pen tail side to the large pen tip holder side, a counterweight section, a tail plug section, a liquid reservoir section, a water reservoir section, and a hydrophilic section are arranged sequentially. A water-guiding core is disposed within the water reservoir section, with one end communicating with the liquid reservoir section and the other end contacting and extending through the hydrophilic section to the outside of the inner rod. A pen tip assembly is disposed on the large pen tip holder, and a pen sleeve is fitted onto the large pen tip holder, with the pen tip assembly located within the pen sleeve.
[0008] The pen tip assembly is provided with a brush tip holder. A slot is provided on the side of the brush tip holder away from the inner rod. The brush tip holder is snapped into the slot and is tightly attached to the inner rod. An installation cavity is provided inside the brush tip holder, and a water-absorbing part of the pen tip is provided in the installation cavity. An insertion hole is provided through the bottom end of the installation cavity. The water-guiding core passes through the insertion hole and extends into the installation cavity, and the water-guiding core is inserted into the water-washing part of the pen tip. An extension hole is provided through the side of the installation cavity away from the insertion hole. The water-absorbing part of the pen tip passes through the extension hole and extends to the outside of the brush tip holder. The part of the water-absorbing part of the pen tip that extends to the outside of the brush tip holder is the pen tip. A locking component is provided between the brush tip holder and the inner rod. Depending on the actual needs, one or two extension holes can be provided. When there is a single pen tip, only one extension hole is required. If there are two pen tips, two extension holes are required.
[0009] Furthermore, the locking assembly is configured with two sets of magnetic rings, and the pen tip absorber and the inner rod are both provided with annular grooves at the contact points. The two sets of magnetic rings are respectively installed in the annular grooves of the pen tip absorber and the inner rod, and the two sets of magnetic rings attract each other.
[0010] Furthermore, the end of the water-guiding core near the pen tip is designed to be conical.
[0011] Furthermore, a limiting ring is provided in the middle of the outer wall of the brush tip holder, and the limiting ring is in close contact with the end of the large brush tip holder near the brush tip.
[0012] Furthermore, the sidewall of the limiting ring is evenly provided with a number of disassembly and assembly auxiliary blocks, which are arranged to protrude radially relative to the large pen tip seat.
[0013] Furthermore, the inner hole of the water storage unit and the water inlet core are configured as a single-section large-gap fit structure.
[0014] Furthermore, the interior of the liquid storage section is provided with homogenizing spheres.
[0015] Furthermore, the pen tip is specifically configured as a blade pen tip, a pointed pen tip, a vertical two-claw pen tip, an integral double-claw eagle beak pen tip, a single-claw eagle beak pen tip, or a split double-claw eagle beak pen tip.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This utility model achieves flexible adaptation of various pen tips by setting a replaceable pen tip component, solving the problem of the single pen tip of traditional eyeliner and meeting consumers' needs for different line effects.
[0018] The snap-fit and locking mechanism between the brush tip holder and the large brush tip holder ensures the stability of the brush tip connection and makes brush tip replacement convenient and efficient.
[0019] The precise fit between the ink core and the ink-absorbing part of the pen tip, along with the conical design, ensures smooth ink transfer, uniform ink output, and easy installation.
[0020] The integrated large-gap fit structure of the water reservoir reduces water intake resistance, the homogeneous spheres in the liquid storage section ensure uniform ink composition, and the water intake core is easier to assemble and less prone to deformation, which is beneficial to the smoothness of ultra-high viscosity large particle ink.
[0021] The addition of a limit ring and disassembly / assembly auxiliary blocks further enhances the convenience of disassembly and assembly operations. The overall structure optimizes the user experience and strengthens the product's applicability and practicality. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the connection structure between the outer rod and the large pen tip holder of this utility model;
[0023] Figure 2 This is a schematic diagram of the connection structure between the magnet ring and the inner rod of this utility model;
[0024] Figure 3 This is the utility model Figure 2 A magnified schematic diagram of the structure of part A in the diagram;
[0025] Figure 4 This is a schematic diagram of the connection structure between the magnet ring and the brush tip holder of this utility model.
[0026] Figure 5 This is the utility model Figure 4 A magnified schematic diagram of the partial structure of B in the diagram;
[0027] Figure 6 This is a cross-sectional view of the present invention;
[0028] Figure 7 This is a schematic diagram of the structure of the blade pen tip of this utility model;
[0029] Figure 8 This is a schematic diagram of the structure of the pointed pen tip of this utility model;
[0030] Figure 9 This is a schematic diagram of the structure of the vertical two-claw pen tip of this utility model;
[0031] Figure 10 This is a schematic diagram of the main structure of the integral double-claw eagle-beak pen tip of this utility model;
[0032] Figure 11 This is a side view of the integrated double-claw eagle-beak pen tip of this utility model.
[0033] Figure 12This is a schematic diagram of the main structure of the single-claw eagle beak pen tip of this utility model;
[0034] Figure 13 This is a side view structural diagram of the single-claw eagle beak pen tip of this utility model;
[0035] Figure 14 This is a schematic diagram of the main structure of the split double-claw eagle-beak pen tip of this utility model.
[0036] Figure 15 This is a side view of the split double-claw eagle-beak pen tip of this utility model.
[0037] The following are labels in the attached diagram: 1. Outer rod; 2. Inner rod; 3. Large pen tip holder; 4. Counterweight block; 5. Tail plug; 6. Liquid reservoir; 7. Water reservoir; 8. Hydrophilic part; 9. Water inlet core; 10. Pen cap; 11. Brush pen tip holder; 12. Pen tip water absorption part; 13. Pen tip; 14. Magnetic ring; 15. Limiting ring; 16. Disassembly and assembly auxiliary block; 17. Homogenizing ball. Detailed Implementation
[0038] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0039] like Figures 1 to 15 As shown,
[0040] Example
[0041] This utility model discloses an automatic balanced ink-dispensing direct-liquid eyeliner pen suitable for multiple nibs 13, comprising an outer rod 1, an inner rod 2 with an opening at one end, and a working chamber within the inner rod 2. A large pen tip holder 3 is sealed and fitted onto the opening side of the outer rod 1. The end of the inner rod 2 at the opening of the outer rod 1 is inserted into the large pen tip holder 3. Within the working chamber of the inner rod 2, from the pen tail side towards the large pen tip holder 3, are arranged sequentially a counterweight 4, a tail plug 5, a liquid storage section 6, a water reservoir 7, and a hydrophilic section 8. A water-guiding core 9 is provided within the water reservoir 7, one end of which communicates with the liquid storage section 6, and the other end contacts and passes through the hydrophilic section 8, extending to the outside of the inner rod 2. A pen tip assembly is provided on the large pen tip holder 3, and a pen sleeve 10 is fitted onto the large pen tip holder 3, with the pen tip assembly located within the pen sleeve 10. The invention is characterized by...
[0042] The pen tip assembly is provided with a brush tip holder 11. A slot is provided on the side of the large brush tip holder 3 away from the inner rod 2. The brush tip holder 11 is snapped into the slot and is in close contact with the inner rod 2. An installation cavity is provided inside the brush tip holder 11. A water-absorbing part 12 is provided in the installation cavity. An insertion hole is provided through the bottom end of the installation cavity. The water-guiding core 9 passes through the insertion hole and extends into the installation cavity. The water-guiding core 9 is inserted into the water-washing part of the brush tip. An extension hole is provided through the side of the installation cavity away from the insertion hole. The water-absorbing part 12 passes through the extension hole and extends to the outside of the brush tip holder 11. The part of the water-absorbing part 12 extending to the outside of the brush tip holder 11 is set as the pen tip 13. A locking component is provided between the brush tip holder 11 and the inner rod 2.
[0043] In this embodiment:
[0044] The outer rod 1, inner rod 2, large brush head holder 3 and brush head assembly are assembled together. The brush head assembly is snapped into the large brush head holder 3 via the brush brush head holder 11. The brush head absorbent part 12 extends out to form a replaceable brush tip 13.
[0045] The specific implementation process is as follows:
[0046] The outer rod 1 has a placement cavity machined inside, with an opening at one end; the inner rod 2 is inserted into the placement cavity, and a working cavity is machined inside it. From the tail end to the open end, the counterweight part 4, the tail plug part 5, the liquid storage part 6, the water storage part 7, and the hydrophilic part 8 are assembled in sequence.
[0047] The large pen tip holder 3 is sealed and installed on the opening side of the outer rod 1. The inner rod 2 is inserted into the large pen tip holder 3 at one end near the opening. A water-guiding core 9 is installed inside the water storage part 7. One end is connected to the liquid storage part 6, and the other end extends out of the inner rod 2 through the hydrophilic part 8. The hydrophilic part 8 is made of hydrophilic material.
[0048] A slot is machined on the side of the large brush head holder 3 away from the inner rod 2. The brush head holder 11 is inserted into the slot and is tightly attached to the inner rod 2. An installation cavity is machined inside the brush head holder 11, and a brush head water absorption part 12 is built in it. An insertion hole is provided at the bottom of the installation cavity for the water core 9 to pass through and insert into the brush head water absorption part 12. An extension hole is provided at the top for the brush head water absorption part 12 to extend out to form a brush tip 13.
[0049] The pen cap 10 is attached to the large pen tip holder 3 to protect the pen tip assembly.
[0050] This implementation process demonstrates that:
[0051] The modular design enables a detachable connection between the pen tip assembly and the main body, providing a basis for the replacement of multiple nibs.
[0052] The precise alignment between the ink core 9 and the ink absorption part 12 of the pen tip ensures a smooth ink transmission path and stable ink output.
[0053] As a preferred embodiment of the above, the brush head holder 11 and the inner rod 2 are locked together by two sets of mutually attracting magnetic rings 14.
[0054] The specific implementation process is as follows:
[0055] Annular grooves are machined at the contact points between the brush tip holder 11 and the inner rod 2, with the groove depth matching the thickness of the magnet ring 14.
[0056] Insert two sets of magnet rings 14 with opposite magnetic properties into the annular groove, such as one set with the N pole facing outwards and the other set with the S pole facing outwards, to ensure that the surface of the magnet ring 14 is flush with the contact surface after installation.
[0057] This implementation process demonstrates that:
[0058] The magnetic locking mechanism allows for easy assembly and disassembly without tools.
[0059] The continuous attraction of the magnetic ring 14 ensures that the pen tip assembly fits tightly with the inner rod 2, avoiding ink leakage or uneven ink output caused by gaps;
[0060] Furthermore, strong magnetic materials (such as neodymium iron boron magnets) can be used to increase the locking force while reducing the volume of the magnet ring 14 to save space. Depending on actual needs, a silicone gasket can be added in the annular groove to form a double seal with the magnet ring 14, further preventing ink leakage.
[0061] As a preferred embodiment of the above, the end of the water-guiding core 9 near the pen tip 13 is set in a conical shape.
[0062] The specific implementation process is as follows:
[0063] The water-guiding core 9 is made of porous fiber material (such as nylon fiber). During processing, the end near the pen tip 13 is ground into a cone shape, and the cone tip angle is controlled between 30° and 60°.
[0064] During assembly, ensure that the conical tip is aligned with the center hole of the pen tip absorbent part 12 and inserted into the pen tip absorbent part 12.
[0065] This implementation process demonstrates that:
[0066] The conical design facilitates quick and precise insertion of the water-drawing core 9 into the pen tip's water-absorbing part 12, reducing assembly resistance.
[0067] The contact area between the tip and the ink-absorbing part 12 gradually increases, guiding the ink to penetrate evenly to the tip 13 and avoiding local ink accumulation. Depending on actual needs, a hydrophilic film can be wrapped around the outer layer of the ink-absorbing core 9 to improve the ink conduction speed.
[0068] As a preferred embodiment of the above embodiment, a limiting ring 15 is provided in the middle of the outer side wall of the brush tip holder 11, and the limiting ring 15 is in close contact with the end of the large brush tip holder 3 near the brush tip 13.
[0069] The sidewall of the limiting ring 15 is evenly provided with a plurality of disassembly and assembly auxiliary blocks 16, which are arranged to protrude radially relative to the large pen tip holder 3.
[0070] The specific implementation process is as follows:
[0071] The middle of the outer wall of the brush tip holder 11 is integrally formed with a limiting ring 15 to ensure that the limiting ring 15 fits tightly with the end face of the large brush tip holder 3 after assembly.
[0072] Three to four disassembly and assembly auxiliary blocks 16 (such as rectangular or arc-shaped protrusions) are evenly distributed on the side wall of the limiting ring 15, so that the disassembly and assembly auxiliary blocks 16 protrude slightly relative to the large brush tip holder 3, making it easier to push or press the brush tip holder 11 when disassembling and replacing the brush tip 13.
[0073] This implementation process demonstrates that:
[0074] The limiting ring 15 precisely controls the insertion depth of the brush tip holder 11, ensuring that the water-guiding core 9 and the water-absorbing part 12 of the brush tip are aligned, thus ensuring ink output stability.
[0075] The disassembly and assembly auxiliary block 16 increases the friction between the hand and the pen tip holder, solving the slippage problem during replacement and improving the ease of operation.
[0076] As a preferred embodiment of the above, the inner hole of the water storage unit 7 and the water inlet core 9 are configured as a single-section large-gap fit structure.
[0077] Specific implementation process:
[0078] The water storage section 7 is made of rigid plastic, with an inner diameter 0.5-1mm larger than that of the water inlet core 9, and the entire section maintains a uniform gap.
[0079] After the water inlet core 9 is inserted into the water storage unit 7, ensure that there is no local compression or adhesion, and connect and fix the two ends to the liquid storage unit 6 and the hydrophilic unit 8 respectively.
[0080] This implementation process demonstrates that:
[0081] The large gap design reduces the frictional resistance between the water inlet core 9 and the water reservoir 7, allowing the ink to flow more smoothly under gravity and capillary action, achieving "automatic balanced ink dispensing".
[0082] To avoid deformation or blockage of the water inlet core 9 due to excessively small gaps, thus extending its service life.
[0083] As a preferred embodiment of the above embodiment, the liquid storage section 6 is provided with homogenizing spheres 17.
[0084] Specific implementation process:
[0085] The homogenizing ball 17 is made of stainless steel and has a diameter of 1 / 3 to 1 / 2 of the inner diameter of the liquid storage section 6.
[0086] During assembly, the homogenizing ball 17 is placed into the liquid storage section 6, sealed, and then shaken to allow the homogenizing ball 17 to roll freely and stir the internal eyeliner liquid.
[0087] This implementation process demonstrates that:
[0088] The homogenizing ball 17 stirs the ink during use to prevent component sedimentation (such as pigment particles settling) and ensure uniform ink color.
[0089] This reduces the frequency of manual shaking before use, improving ease of use.
[0090] As a preferred embodiment of the above, the pen tip 13 is specifically configured as a blade pen tip, a pointed pen tip, a vertical two-claw pen tip, an integral double-claw eagle beak pen tip, a single-claw eagle beak pen tip, or a split double-claw eagle beak pen tip.
[0091] Specific implementation process:
[0092] According to design requirements, the portion of the brush tip absorbent part 12 extending out of the brush tip holder 11 is processed into different shapes:
[0093] Blade-shaped pen tip: The end is sharpened into a flat, acute angle, similar to a blade;
[0094] Pointed nib: The tip is ground into a fine point;
[0095] Claw-shaped pen tip: It is molded into the shape of two claws, eagle beak, etc., with the distance between the claws controlled at 0.1-0.3mm.
[0096] Each pen tip 13 comes with an independent brush tip holder 11, forming a replaceable pen tip assembly set.
[0097] This implementation process demonstrates that:
[0098] Multiple types of pen tips meet different makeup needs, such as the blade tip suitable for outlining sharp lines, and the claw tip suitable for blending effects;
[0099] Consumers can purchase pen tip components separately as needed, reducing usage costs.
[0100] The working principle of this utility model is as follows:
[0101] This eyeliner pen features an integrated support structure formed by the cooperation of the outer rod 1 and the inner rod 2. The ink reservoir 6 within the inner rod 2 stores the ink, while the counterweight 4 ensures balance during use. The ink in the reservoir 6 is conducted through the water-conducting core 9 within the water reservoir 7 to the ink-absorbing part 12 of the pen tip assembly, and finally released through the pen tip 13. The pen tip assembly is stably installed and quickly replaced through the snap-fit between the brush tip holder 11 and the large pen tip holder 3, and the locking action of the magnetic ring 14. The various types of pen tips 13 cater to diverse makeup needs. The large gap fit of the water reservoir 7, the conical design of the water-conducting core 9, and the homogenizing sphere 17 of the reservoir 6 collectively ensure smooth ink conduction, uniform ink dispensing, and stable ink composition. The limiting ring 15 and the disassembly / removal auxiliary block 16 enhance the overall ease of operation.
[0102] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An automatic balanced ink-dispensing direct liquid eyeliner suitable for multiple nibs (13), comprising an outer rod (1), an inner rod (2) with an opening at one end of the outer rod (1), a working chamber within the inner rod (2), a large pen tip holder (3) sealed and fitted onto the opening side of the outer rod (1), and the end of the inner rod (2) located at the opening of the outer rod (1) inserted into the large pen tip holder (3), with the working chamber of the inner rod (2) extending from the pen tail side towards the large pen tip holder (3). The side is provided with a counterweight part (4), a tail plug part (5), a liquid storage part (6), a water reservoir part (7), and a hydrophilic part (8) in sequence. A water-guiding core (9) is provided in the water reservoir part (7). One end of the water-guiding core (9) is connected to the liquid storage part (6), and the other end contacts and passes through the hydrophilic part (8) and extends to the outside of the inner rod (2). A pen tip assembly is provided on the large pen tip holder (3). A pen sleeve (10) is fitted on the large pen tip holder (3). The pen tip assembly is located in the pen sleeve (10). The feature is that... The pen tip assembly is provided with a brush tip holder (11). A slot is provided on the side of the large pen tip holder (3) away from the inner rod (2). The brush tip holder (11) is inserted into the slot and is in close contact with the inner rod (2). An installation cavity is provided inside the brush tip holder (11). A pen tip water absorption part (12) is provided in the installation cavity. An insertion hole is provided through the bottom end of the installation cavity. The water guide core (9) passes through the insertion hole and extends into the installation cavity. The water guide core (9) is inserted into the pen tip water washing part. An extension hole is provided through the side of the installation cavity away from the insertion hole. The pen tip water absorption part (12) passes through the extension hole and extends to the outside of the brush tip holder (11). The part of the pen tip water absorption part (12) extending to the outside of the brush tip holder (11) is set as the pen tip (13). A locking component is provided between the brush tip holder (11) and the inner rod (2).
2. The automatic balanced ink-dispensing direct-liquid eyeliner pen applicable to multiple nibs (13) as described in claim 1, characterized in that, The locking assembly is configured with two sets of magnetic rings (14). The pen tip water-absorbing part (12) and the inner rod (2) are provided with annular grooves at the contact points. The two sets of magnetic rings (14) are respectively installed in the annular grooves of the pen tip water-absorbing part (12) and the inner rod (2), and the two sets of magnetic rings (14) attract each other.
3. The automatic balanced ink-dispensing direct-liquid eyeliner pen applicable to multiple nibs (13) as described in claim 1, characterized in that, The end of the water-guiding core (9) near the pen tip (13) is set in a conical shape.
4. The automatic balanced ink-dispensing direct-liquid eyeliner pen applicable to multiple nibs (13) as described in claim 1, characterized in that, A limiting ring (15) is provided in the middle of the outer side wall of the brush tip holder (11), and the limiting ring (15) is in close contact with the end of the large brush tip holder (3) near the brush tip (13).
5. The automatic balanced ink-dispensing direct-liquid eyeliner pen applicable to multiple nibs (13) as described in claim 4, characterized in that, The sidewall of the limiting ring (15) is evenly provided with a number of disassembly and assembly auxiliary blocks (16), which protrude radially relative to the large pen tip holder (3).
6. The automatic balanced ink-dispensing direct-liquid eyeliner pen applicable to multiple nibs (13) as described in claim 1, characterized in that, The inner hole of the water storage unit (7) and the water inlet core (9) are configured as a whole section with a large clearance fit structure.
7. The automatic balanced ink-dispensing direct-liquid eyeliner pen applicable to multiple nibs (13) as described in claim 1, characterized in that, The liquid storage section (6) is provided with homogenized balls (17).
8. An automatic balanced ink-dispensing direct-liquid eyeliner pen suitable for multiple nibs (13) as described in any one of claims 1-7, characterized in that, The pen tip (13) is specifically configured as a blade pen tip, a pointed pen tip, a vertical two-claw pen tip, an integral double-claw eagle beak pen tip, a single-claw eagle beak pen tip, or a split double-claw eagle beak pen tip.