A pressurized liquid eyeshadow pen

Abstract

This utility model discloses a pressurized liquid eyeshadow pen, comprising a pen body, a pressurizing component, and a rod. The pen body has a connector end at one end, on which a brush head and a dust cap can be detachably mounted. Internally, it comprises a column cavity and a liquid bladder cavity. The rod slides within the column cavity, and its end is fixedly connected to a piston, which slides within the liquid bladder cavity. The pressurizing component includes a stationary sleeve, a movable sleeve, a pressure button, and an elastic connector. The movable sleeve engages with the pressure bevel of the pressure button via a wedge angle, enabling retraction and reset. A ratchet engages with the groove of the rod, allowing the rod to advance unidirectionally, pushing the piston to pressurize and dispense liquid sequentially. The brush head evenly dispenses the eyeshadow liquid through capillary channels, and the dust cap contains a sealing ring for sealing and protection. This structure achieves quantitative and stable dispensing through step-by-step unidirectional pressurization, avoiding backflow and uneven dispensing, and offers the advantages of precise dispensing, reliable sealing, and ease of use.

Description

Technical Field

[0001] This utility model relates to the field of eyeshadow pen technology, specifically to a pressurized liquid eyeshadow pen. Background Technology

[0002] Liquid eyeshadow, a common cosmetic product, is widely used in daily makeup due to its rich color and good spreadability. Most existing liquid eyeshadow sticks are a combination of an internal liquid reservoir and an external brush head, typically dispensed by squeezing the stick or simply pressing the pump head. While this structure achieves basic dispensing functionality, it still has some significant shortcomings.

[0003] Currently, common liquid eyeshadow pens mainly come in the following forms: one type is the tube-type squeeze type, where the user squeezes the pen body to make the liquid inside flow out directly. This method makes it difficult to control the amount of liquid dispensed, easily resulting in too much or too little liquid output, affecting the makeup effect; another type is the press pump type, which uses an elastic element to achieve liquid output, but this type of structure usually lacks an effective one-way limiting mechanism. After releasing the press, the piston is prone to retraction, causing liquid backflow or interruption of liquid output; some products also attempt to use a rotary propulsion structure, using a thread to drive the piston forward, but this method is cumbersome to operate and difficult to control on the spot.

[0004] Therefore, there is still an urgent need for a structurally improved liquid eyeshadow pen that can achieve sequential quantitative output of liquid through a unidirectional step-by-step pressurization method, avoiding backflow and thus improving the stability and accuracy of liquid output. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows: a pressurized liquid eyeshadow pen, which achieves precise liquid dispensing control through a step-by-step unidirectional pressurization by setting a cylindrical cavity and a liquid sac cavity inside the pen body, and cooperating with a rod, piston, pressurizing component, and brush head. The user can push the piston forward by pressing the button, allowing the eyeshadow liquid to be evenly distributed to the brush head. The dust cap and sealing ring provide protection, ensuring the stability of the dispensing and ease of use.

[0007] The liquid eyeshadow pen includes a pen body, a pressurizing assembly, and a rod. The pen body has a connector end at one end, on which a brush head and dust cap can be detachably mounted. The inner side of the pen body has a cylindrical cavity and a liquid sac cavity. The rod slides within the cylindrical cavity, and its end is fixedly connected to a piston, which slides within the liquid sac cavity. The pressurizing assembly includes a stationary sleeve, a movable sleeve, a pressure button, and an elastic connector. Both the stationary and movable sleeves have symmetrically arranged ratchet teeth on their inner sides. The bottom surface of the movable sleeve has wedges on both sides that abut against the inclined surface of the pressure button. The pen body has an ear groove on its surface, and the movable sleeve is slidably mounted within the ear groove.

[0008] Specifically, this structure enables the moving sleeve to retract via the pressure ramp when the user presses the button, and pushes the ratchet to move the rod forward when the elastic connector resets, thereby pushing the piston to pressurize and dispense liquid, ensuring the accuracy and stability of liquid dispensing.

[0009] In a preferred example, the liquid sac is filled with liquid eyeshadow, and the pen body is made of a transparent or semi-transparent material.

[0010] Specifically, this design allows users to visually observe the remaining liquid level, avoiding the impact of insufficient liquid on the performance and improving the reliability and convenience of use.

[0011] In a preferred example, the surface of the column has several axially arranged grooves, and the ratchet is a one-piece structure with several elastic fins on its surface that abut against the grooves.

[0012] Specifically, this structure ensures that the rod can move forward in one direction when the moving sleeve is reset, avoiding piston retraction and thus preventing backflow of eyeshadow liquid or interruption of liquid dispensing.

[0013] In a preferred example, the wedge angle of the movable sleeve slides into contact with the inclined surface of the button.

[0014] Specifically, when the user presses the button, the structure drives the moving sleeve to retract axially along the ear groove and compresses the elastic connector, providing a power source for the step-by-step advancement of the piston.

[0015] In a preferred example, the brush head includes a connecting portion and bristles disposed on the surface of the connecting portion, wherein the connecting portion has capillary channels communicating with the connector end.

[0016] The connection between the connecting part and the connector end can be achieved by threaded connection, magnetic connection or interference fit.

[0017] Specifically, the design achieves even distribution of eyeshadow liquid in the brush head and facilitates the replacement of brush heads of different sizes to meet diverse makeup application needs.

[0018] In a preferred example, the resilient connector may be one of a U-shaped spring, a cylindrical spring, or a resilient rubber column.

[0019] Specifically, the structure provides a restoring force after the moving sleeve retracts, returning it to its initial position, thereby driving the ratchet to achieve unidirectional drive of the rod, ensuring continuous and stable liquid discharge.

[0020] In a preferred example, the inner wall of the dust cap is provided with an annular sealing ring.

[0021] Specifically, the design ensures a tight fit between the dust cap and the connector when closed, preventing the eyeshadow liquid from evaporating when not in use and keeping the brush head moist and preventing contamination.

[0022] In a preferred example, the buttons are arranged symmetrically in both directions, and their surfaces have ergonomically curved pressing grooves.

[0023] Specifically, this design allows users to operate comfortably regardless of their grip habits, improving the flexibility and tactile experience of use.

[0024] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, the coordinated action of the button, moving sleeve, ratchet, rod and piston forms a step-by-step unidirectional pressurization structure, which can push the piston forward each time the user presses, thereby realizing the sequential quantitative output of eyeshadow liquid, ensuring the accuracy and stability of liquid output.

[0025] 2. In this utility model, a one-way drive mechanism is formed by the cooperation of the button, the moving sleeve, the ratchet, the rod and the piston. Each press can push the piston forward precisely, realizing the quantitative and stable output of eyeshadow liquid in the liquid sac cavity, avoiding the problems of uneven liquid output and difficulty in control of traditional liquid eyeshadow pens. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a cross-sectional structural diagram of one embodiment of the present invention; Figure 3 This is a schematic diagram of the pressurization component and column structure according to one embodiment of the present invention; Figure 4 This is one embodiment of the present utility model. Figure 3 A schematic diagram of the structure at point A; Figure 5 This is a schematic diagram of the ratchet mechanism according to an embodiment of the present invention.

[0027] Figure label: 100. Pen body; 110. Connector end; 120. Brush head; 130. Dust cap; 101. Ear canal; 102. Column cavity; 103. Fluid sac cavity; 200. Pressurizing component; 210. Stationary sleeve; 220. Moving sleeve; 230. Press button; 240. Racket; 250. Flexible connector; 221. Wedge angle; 231. Pressing bevel; 300, rod; 310, piston; 320, tooth groove. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0029] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0030] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a pressurized liquid eyeshadow pen.

[0031] Combination Figures 1-5 As shown, the present invention provides a pressurized liquid eyeshadow pen, comprising a pen body 100, a pressurizing component 200, and a column 300.

[0032] The pen body 100 has a connector end 110 at its port, and a brush head 120 and a dust cap 130 can be detachably mounted on the surface of the connector end 110. The pen body 100 has a cylindrical cavity 102 and a liquid bladder cavity 103 on its inner side. A rod 300 is slidably sleeved inside the cylindrical cavity 102, and a piston 310 is fixedly connected to the end of the rod 300. The piston 310 is slidably sleeved inside the liquid bladder cavity 103 for pressurizing the liquid inside the liquid bladder cavity 103.

[0033] The pressurizing assembly 200 includes a stationary sleeve 210, a movable sleeve 220, a pressure button 230, and an elastic connector 250 for elastic connection between the stationary sleeve 210 and the movable sleeve 220. Both the stationary sleeve 210 and the movable sleeve 220 have ratchet teeth 240 symmetrically arranged on both sides of the column 300 on their inner sides. The stationary sleeve 210 is fixedly installed on the inner side of the pen body 100. One end of the pressure button 230 is rotatably connected to the surface of the stationary sleeve 210, and the surface of the pressure button 230 has a pressure bevel 231. The bottom surface of the movable sleeve 220 has wedges 221 on both sides that slide against the pressure bevel 231. The surface of the pen body 100 has an ear groove 101, and the movable sleeve 220 is slidably installed inside the ear groove 101.

[0034] During operation, the user presses the button 230, which, through the cooperation of the inclined surface 231 and the wedge angle 221, drives the moving sleeve 220 to retract and compress the elastic connector 250. After releasing the button 230, the moving sleeve 220, under the reset action of the elastic connector 250, drives the ratchet 240 to push the rod 300 to feed in one direction, thereby pushing the piston 310 to move forward in the liquid bladder cavity 103 to achieve pressurized liquid discharge.

[0035] In this embodiment, the liquid sac 103 is filled with liquid eyeshadow. The pen body 100 is made of a transparent or semi-transparent material, such as transparent polycarbonate or transparent resin, allowing the user to visually observe the remaining liquid level inside the pen body 100. This design facilitates timely replenishment or replacement of the liquid eyeshadow, preventing insufficient liquid from affecting the user experience.

[0036] In this embodiment, the surface of the rod 300 is provided with a plurality of toothed grooves 320 arranged axially along the surface of the rod 300. The ratchet 240 is an integrally formed structure, and its surface is provided with a plurality of elastic fins that abut against the surface of the toothed grooves 320. The fins are arranged obliquely and abut against the surface of the toothed grooves 320. Through this design, the ratchet 240 can achieve unidirectional engagement with the toothed grooves 320 during the resetting process of the moving sleeve 220, thereby driving the rod 300 to move forward step by step.

[0037] In this embodiment, the bottom wedge angle 221 of the movable sleeve 220 slides against the inclined surface 231 on the surface of the button 230. When the user presses the button 230 to cause it to deflect, the inclined surface 231 and the wedge angle 221 interact, driving the movable sleeve 220 to retract axially toward the column rod 300, thereby preparing conditions for the subsequent reset of the elastic connector 250 and the one-way engagement of the ratchet 240.

[0038] In this embodiment, the brush head 120 includes a connecting portion and bristles arranged on the surface of the connecting portion. The connecting portion has a capillary channel communicating with the connector end 110 for the even distribution of the eyeshadow liquid. The connection between the connecting portion and the connector end 110 can be achieved through a threaded connection, a magnetic connection, or an interference fit, allowing users to easily replace brush heads 120 of different specifications to suit various makeup effects.

[0039] In this embodiment, the elastic connector 250 can be one of a U-shaped spring, a cylindrical spring, or an elastic rubber column, used to provide a restoring force after the movable sleeve 220 retracts, enabling the movable sleeve 220 to return to its initial position, thereby driving the ratchet 240 and the rod 300 to achieve unidirectional drive. This design ensures that the pressurization cycle can be repeated multiple times, guaranteeing the continuous output of the eyeshadow liquid.

[0040] In this embodiment, the inner wall of the dust cap 130 is provided with an annular sealing ring. When the dust cap 130 is closed on the connector end 110, the sealing ring fits tightly with the connector end 110, forming a reliable seal, thereby effectively preventing the eyeshadow liquid from evaporating when not in use, and at the same time preventing the brush head 120 from drying out or becoming contaminated due to prolonged exposure.

[0041] In this embodiment, the buttons 230 are arranged symmetrically in both directions, and their surfaces are provided with ergonomically curved pressing grooves. This design allows users to press comfortably regardless of their left or right hand operating habits, improving operational flexibility and comfort, and preventing hand fatigue caused by prolonged use.

[0042] Working principle and usage process of this utility model: This invention relates to a pressurized liquid eyeshadow pen. The pressurizing component 200 drives the piston 310 to move within the liquid sac 103, achieving a quantitative pressurized output of the internal liquid eyeshadow. The liquid is then discharged through the connector 110 to the brush head 120 to complete the makeup application. Its working process is as follows: When not in use, brush heads of different specifications and types can be installed. The brush heads 120 can be covered by dust caps 130. The inner wall of the dust caps 130 is provided with an annular sealing ring, which fits tightly with the connector end 110, effectively preventing the eyeshadow liquid from evaporating or the brush bristles from drying out, while also preventing external dust from entering.

[0043] In use, the user manually presses the button 230 on the surface of the pen body 100. The inclined surface 231 of the button 230 abuts against the wedge angle 221 at the bottom of the movable sleeve 220. During the pressing and deflection process, the movable sleeve 220 is driven to retract axially along the ear groove 101, while compressing the elastic connector 250 to store energy. When the user releases the button 230, the elastic connector 250, such as a U-shaped spring, cylindrical spring, or elastic rubber column, returns to its original shape, pushing the movable sleeve 220 back to its initial position. During the reset process, the ratchet 240 on the movable sleeve 220 engages with the toothed groove 320 on the surface of the rod 300, and drives the rod 300 forward in one direction through the action of the inclined elastic fins. As the rod 300 advances axially, the piston 310 fixed at its end slides forward in the liquid bladder cavity 103, pressurizing the eyeshadow liquid in the cavity. The compressed liquid eyeshadow enters the connecting part of the brush head 120 along the connector end 110, and is evenly distributed to the brush bristle surface by the capillary channels in the connecting part, making it easy for the user to apply directly.

[0044] The engagement of the ratchet 240 and the toothed groove 320 of the rod 300 ensures the unidirectional movement of the rod 300, preventing it from retracting after being pressed and released. Users can gradually push the piston 310 forward by repeatedly pressing the button 230, thus achieving continuous pressurized supply of the eyeshadow liquid. The liquid sac 103 is filled with eyeshadow liquid, and the pen body 100 is made of a transparent or semi-transparent material, allowing users to visually observe the remaining amount of eyeshadow liquid for timely replenishment or replacement, ensuring continuous makeup application.

[0045] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pressurized liquid eye pencil, characterized in that, include: The pen body (100), the pressurizing component (200), and the column (300) are provided. The pen body (100) has a connector end (110) at its port, and a brush head (120) and a dust cap (130) are detachably installed on the surface of the connector end (110). The pen body (100) has a column tube cavity (102) and a liquid bladder cavity (103) on its inner side. The column (300) is slidably sleeved on the inner side of the column tube cavity (102), and a piston (310) is fixedly connected to the end of the column (300). The piston (310) is slidably sleeved on the inner side of the liquid bladder cavity (103). The pressurizing assembly (200) includes a stationary sleeve (210), a movable sleeve (220), a button (230), and an elastic connector (250) for elastic connection between the stationary sleeve (210) and the movable sleeve (220). The inner sides of the stationary sleeve (210) and the movable sleeve (220) are provided with ratchet members (240) symmetrically arranged on both sides of the column rod (300). The stationary sleeve (210) is fixedly installed on the inner side of the pen body (100), and one end of the button (230) is rotatably connected to the surface of the stationary sleeve (210).

2. The liquid eye pencil of claim 1, wherein, The surface of the button (230) is provided with a pressure bevel (231), and the bottom surfaces of the movable sleeve (220) are provided with wedges (221) that slide against the pressure bevel (231). The surface of the pen body (100) is provided with an ear groove (101), and the movable sleeve (220) is slidably installed on the inner side of the ear groove (101).

3. The liquid eye pencil of claim 1, wherein the liquid eye pencil is a liquid eye pencil for applying a liquid eye shadow. The column (300) has a plurality of tooth grooves (320) arranged along the axial direction of the column (300) surface. The ratchet (240) is an integrally formed structure and has a plurality of elastic fins on its surface that abut against the surface of the tooth grooves (320). The fins abut against the surface of the tooth grooves (320) at an angle.

4. The liquid eye pencil of claim 1, wherein The bottom wedge angle (221) of the movable sleeve (220) slides against the surface pressure slope (231) of the button (230) to drive the movable sleeve (220) to retract during the pressing and deflecting motion of the button (230).

5. The liquid eye pencil of claim 1, wherein The brush head (120) includes a connecting part and bristles arranged on the surface of the connecting part. The connecting part has a capillary channel communicating with the connector end (110) for uniform distribution of the eyeshadow liquid. The connection between the connecting part and the surface of the connector end (110) is one of threaded connection, magnetic connection or interference fit.

6. The liquid eye pencil of claim 1, wherein, The elastic connector (250) is one of a U-shaped spring, a cylindrical spring, or an elastic rubber column, used to realize the relative motion reset between the stationary sleeve (210) and the moving sleeve (220).

7. The liquid eye pencil of claim 1, wherein the liquid eye pencil is a liquid eyeliner. The inner wall of the dust cap (130) is provided with an annular sealing ring, which fits tightly with the connector end (110) when closed, and is used to prevent the brush head (120) from drying out or the eyeshadow liquid from evaporating when not in use.

8. The liquid eyeliner of claim 1, wherein the liquid eyeliner is a liquid eyeliner pen. The button (230) is arranged symmetrically in both directions, and its surface is provided with a pressing groove that conforms to the ergonomic curvature.

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