一种具有气压平衡结构的液体眼线笔
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI SHIJING TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing eyebrow pencils sometimes experience liquid overflow during transportation due to pressure imbalances, leading to liquid accumulation or leakage inside the reservoir and affecting the user experience.
A liquid eyeliner pen with an air pressure balance structure was designed, including a pen barrel, a pen tip, a cavity, and an adjustment mechanism. The adjustment mechanism adjusts the pressure of the cavity to maintain a constant pressure state when the air pressure changes, thus preventing the liquid from overflowing.
It effectively prevents liquid from spilling when the cap is opened, improving the practicality and user experience of the eyebrow pencil, making it suitable for widespread use.
Smart Images
Figure CN224504902U_ABST
Abstract
Claims
1. A liquid eyeliner pen with a pressure balance structure, comprising a pen barrel (11) and a pen tip (9) installed inside the pen barrel (11), wherein a cap (15) is provided at the bottom of the pen barrel (11), characterized in that: The pen tip (9) is equipped with a water guide core (7) via a flow divider (8), and a brush (4) is provided on the water guide core (7). The end of the pen tip (9) away from the water inlet core (7) is provided with a tail plug (12), and a cavity (16) for storing liquid is formed between the tail plug (12) and the pen tip (9). The bottom of the pen tip (9) is provided with an adjustment mechanism for adjusting the pressure of the cavity (16); The adjustment mechanism includes a mounting frame installed at the bottom of the pen tip (9), a piston (13) is provided inside the mounting frame, and a flow hole (17) is provided on the tail plug (12), the flow hole (17) connecting the mounting frame and the cavity (16).
2. The liquid eyeliner pen with air pressure balancing structure according to claim 1, characterized in that: Multiple sealing rings (14) are also provided between the piston (13) and the mounting frame.
3. The liquid eyeliner pen with air pressure balancing structure according to claim 1, characterized in that: A brush sleeve (5) is installed on the pen tip (9), and the brush (4) passes through the brush sleeve (5).
4. The liquid eyeliner pen with air pressure balancing structure according to claim 1, characterized in that: The pen barrel (11) is also fitted with an upper cover (1) via a magnetic attachment, and the upper cover (1) is fitted with a first inner cover (3) via a positioning part.
5. The liquid eyeliner pen with air pressure balancing structure according to claim 4, characterized in that: The positioning part includes a spring (2) installed between the first inner cover (3) and the upper cover (1), and the elastic force of the spring (2) drives the first inner cover (3) away from the upper cover (1).
6. The liquid eyeliner pen with air pressure balancing structure according to claim 5, characterized in that: A sealing part is also provided between the first inner cover (3) and the pen barrel (11); The sealing part includes a second inner cover (6) installed inside the first inner cover (3), the second inner cover (6) being conical in shape.
7. The liquid eyeliner pen with air pressure balancing structure according to claim 1, characterized in that: The end of the pen tip (9) away from the end cap (12) is also provided with an extension end through which the brush (4) passes.
8. The liquid eyeliner pen with air pressure balancing structure according to claim 1, characterized in that: The cavity (16) contains steel balls (10).
9. The liquid eyeliner pen with air pressure balancing structure according to claim 4, characterized in that: The pen barrel (11), the top cover (1) and the tail cover (15) are all made of metal.