A convenient assembly structure for lip gloss bottles

The convenient assembly of the dual brush head design and snap-fit ​​structure solves the problems of uneven application, poor adhesion, and insufficient brightness of existing lip gloss bottles, achieving uniform application and glossy effect, while improving the product's ease of use and lifespan.

CN224504903UActive Publication Date: 2026-07-17昆山衍华包装科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
昆山衍华包装科技有限公司
Filing Date
2025-08-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The single brush head design of existing lip gloss bottles leads to problems such as uneven application, poor adherence of the lip gloss, and insufficient shine.

Method used

Featuring a convenient dual-brush head design, the lower brush head extends into the bottle to ensure full application of the lip gloss, while the upper brush head, through its extension, engages with the container groove to provide fine application, enhancing evenness and adherence. A snap-fit ​​structure ensures a secure connection between all components.

Benefits of technology

It significantly improves the evenness, adherence, and shine of lip gloss, while also facilitating quick assembly and maintenance, and extending the product's lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a conveniently assembled lip gloss bottle structure, including a bottle body, a lip gloss brush body, and a cap body. The lip gloss brush body includes a brush head tube, the lower end of which is snapped into the upper end of the bottle body. An installation plate is fixedly installed in the inner cavity of the brush head tube. This utility model effectively solves the problems of uneven application, poor adherence, and insufficient brightness of existing single-brush lip gloss bottles through a convenient snap-fit ​​structure and a double-brush head design. The lower brush head extends into the bottle body to ensure that the lip gloss is fully picked up, while the upper brush head provides fine application through an extension that cooperates with the receiving groove, enhancing the uniformity and adherence of the lip gloss, thereby improving the glossiness of the makeup. The integrated design of the upper brush head and the extension allows the extension to be positioned axially and radially within the receiving groove, significantly improving the installation stability and smoothness of the upper brush head during dynamic application. At the same time, the snap-fit ​​connection of each component facilitates quick assembly and maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of lip gloss bottle technology, specifically a convenient assembly structure for a lip gloss bottle. Background Technology

[0002] For example, the published patent CN219645241U, "A Lip Gloss Bottle," addresses the issue of lip gloss. With the continuous development of the beauty industry, lip gloss, as a cosmetic, is more moisturizing and glossy than lipstick, and easier to apply, thus allowing for different makeup effects. Since lip gloss is a liquid cosmetic, it often comes with a lip brush to pick up the gloss from the bottle and apply it. However, the brushes on existing lip gloss bottles can result in uneven application, causing the gloss to not adhere well and making it difficult to enhance its shine.

[0003] As described in the aforementioned published patents, in the prior art, some lip gloss bottles only have a single brush head, which leads to problems such as uneven application and the lip gloss not adhering properly during use. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A conveniently assembled lip gloss bottle structure includes a bottle body, a lip gloss brush body, and a cap body. The lip gloss brush body includes a brush head tube body, the lower end of which is snapped into the upper end of the bottle body. An installation plate is fixedly installed in the inner cavity of the brush head tube body, and the installation plate divides the brush head tube body into an independent upper cavity and a lower cavity. A lower brush head is fixedly connected to the installation plate in the lower cavity, and the lower brush head extends into the bottle body. An auxiliary retaining tube is snapped into the upper end of the tube, and an upper brush head is installed inside the auxiliary retaining tube. A receiving groove is formed along the circumferential direction at the lower end of the outer wall of the auxiliary retaining tube. An extension portion extending from the lower end of the auxiliary retaining tube into the receiving groove is integrally formed at the lower end of the upper brush head. The upper end of the auxiliary retaining tube is snapped into the lower end of the cover.

[0006] As a further embodiment of this utility model: the upper end of the inner wall of the upper end cavity is provided with a first annular snap-fit ​​groove along the circumferential direction, and the outer wall of the auxiliary snap-fit ​​tube is formed with a first annular snap-fit ​​ring that is aligned and snap-fitted with the first annular snap-fit ​​groove.

[0007] As a further embodiment of this utility model: the inner bottom surface of the receiving groove is provided with a second annular snap-fit ​​groove along the circumference, the lower end of the inner wall of the upper cavity is formed with a second annular snap-fit ​​ring that is aligned and snap-fitted with the second annular snap-fit ​​groove, and the extension of the upper brush head is snapped between the second annular snap-fit ​​groove and the second annular snap-fit ​​ring.

[0008] As a further embodiment of this utility model: the inner wall of the upper end cavity is provided with a plurality of vertical grooves evenly distributed along the circumference, and the vertical grooves penetrate vertically through the first annular snap-fit ​​groove and the second annular snap-fit ​​ring.

[0009] As a further embodiment of this utility model: the upper end of the outer wall of the auxiliary card tube is formed with an outwardly protruding ring along the circumferential direction, and the lower side wall of the protruding ring abuts against the upper end of the brush head tube body.

[0010] As a further embodiment of this utility model: the outer wall of the raised ring is formed with a plurality of snap-fit ​​protrusions along the circumferential direction, and the inner wall of the cover is provided with a cover snap-fit ​​groove that engages with the snap-fit ​​protrusions.

[0011] As a further embodiment of this utility model: the lower end face of the mounting plate is formed with a downward protruding first brush head step, the lower end of the first brush head step is formed with a downward protruding brush head mounting post, the lower end of the brush head mounting post is provided with a brush head mounting hole, and the lower brush head is fixedly snapped into the brush head mounting hole. The upper surface of the mounting plate is provided with an air-receiving groove that is recessed into the step of the first brush head, and the air-receiving groove is connected to the upper end cavity.

[0012] As a further embodiment of this utility model: the inner wall of the lower end cavity is formed with a first threaded interface, the upper end of the bottle body is provided with a bottle body mounting groove, and the inner bottom surface of the bottle body mounting groove is formed with a second threaded interface that is screwed into the first threaded interface.

[0013] As a further embodiment of this utility model: the outer diameters of the cap, brush head tube, and bottle are the same.

[0014] As a further embodiment of this utility model: the lower sidewall of the lower end cavity is provided with a serrated groove along the circumference.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention effectively solves the problems of uneven application, poor adhesion, and insufficient shine in existing single-brush lip gloss bottles through a convenient snap-fit ​​structure and dual-brush head design. The lower brush head extends into the bottle to ensure full application of the lip gloss, while the upper brush head, through its extension and engagement with the receiving groove, provides fine application, enhancing the evenness and adhesion of the lip gloss, thereby improving the glossiness of the makeup. The integrated design of the upper brush head and the extension allows the extension to be positioned axially and radially within the receiving groove, significantly improving the stability and smoothness of the upper brush head during dynamic application. At the same time, the snap-fit ​​connection of each component facilitates quick assembly and maintenance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a three-dimensional structural view of the cover body in this utility model; Figure 4 This is a three-dimensional structural view of the auxiliary card connector in this utility model; Figure 5 This is a three-dimensional view of the upper brush head structure in this utility model; Figure 6 This is a three-dimensional structural view of the lip gloss brush body in this utility model; Figure 7 This is another three-dimensional view of the lip gloss brush body in this utility model; Figure 8 This is a three-dimensional structural view of the bottle body in this utility model; Figure 9 This is a front view of the present invention; Figure 10 yes Figure 9 A cross-sectional view along the AA direction; The reference numerals and names in the figure are as follows: Bottle body - 100, lip gloss brush body - 101, cap body - 102, brush head tube body - 103, mounting plate - 104, upper end cavity - 105, lower end cavity - 106, auxiliary locking tube - 108, upper brush head - 109, receiving groove - 110, extension - 111, first annular locking groove - 112, first annular locking ring - 113, second annular locking groove - 114, second annular locking ring - 115, vertical groove - 116, raised ring - 117, locking protrusion - 118, cap body locking groove - 119, first brush head step - 120, brush head mounting post - 121, brush head mounting hole - 122, air venting groove - 123, first threaded interface - 124, bottle body mounting groove - 125, second threaded interface - 126, serrated groove - 127. Detailed Implementation

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

[0018] Please see Figure 1-10A conveniently assembled lip gloss bottle structure includes a bottle body 100, a lip gloss brush body 101, and a cap body 102. The lip gloss brush body 101 includes a brush head tube 103. The lower end of the brush head tube 103 is snapped into the upper end of the bottle body 100. An installation plate 104 is fixedly installed in the inner cavity of the brush head tube 103. The installation plate 104 divides the brush head tube 103 into an independent upper cavity 105 and a lower cavity 106. A lower brush head is fixedly connected to the installation plate 104 in the lower cavity 106 and extends into the bottle body 100. An auxiliary retaining tube 108 is snapped into the upper end cavity 105. An upper brush head 109 is installed inside the auxiliary retaining tube 108. A receiving groove 110 is formed circumferentially at the lower end of the outer wall of the auxiliary retaining tube 108. An extension portion 111 is integrally formed at the lower end of the upper brush head 109, extending from the lower end of the auxiliary retaining tube 108 into the receiving groove 110. The upper end of the auxiliary retaining tube 108 is snapped into the lower end of the cover 102. This utility model's convenient assembly lip gloss bottle structure, through its unique dual-brush head design and modular snap-fit ​​mechanism, significantly improves the evenness, adherence, and brightness of lip gloss application, while also optimizing ease of use and maintainability. The brush head extends 100mm into the bottle to ensure that it can fully pick up enough lip gloss, providing an even base color coverage for subsequent application. This avoids uneven application caused by insufficient or uneven distribution, achieving sufficient pick-up and even base coat. The upper brush head 109 cleverly cooperates with the receiving groove 110 of the auxiliary card tube 108 through its extension 111 to form a brush tip with fine application function. This design can precisely control the flow of the glaze, conform to the contour of the lips for detailed outlining and secondary even spreading, so that the lip glaze adheres tightly to the lip surface, significantly improves the adherence, avoids accumulation or patchiness, and achieves fine application and adherence shaping. The base glaze layer provided by the lower brush head complements the fine polishing achieved by the upper brush head 109. While spreading evenly, the upper brush head 109 can strengthen the lifting of the glaze film surface and enhance light reflection, thereby effectively improving the gloss and fullness of the lip makeup, overcoming the problem that a single brush head is difficult to improve brightness, and enhancing the brightness and layering of the makeup effect. Without the need for additional components, the extension 111 is physically limited by the lower end of the auxiliary retaining tube 108, and the receiving groove 110 provides a space for the extension 111. The extension 111 extends naturally from the bottom of the auxiliary retaining tube 108 into the receiving groove 110, forming an integrated fixed structure. This structure not only constrains the radial displacement of the extension 111 through the groove wall of the receiving groove 110 to enhance the overall anti-sway capability of the upper brush head 109, but also allows the extension 111 to undergo slight elastic deformation when the upper brush head 109 is subjected to application force, thereby maintaining stable contact pressure between the brush head and the lips. At the same time, this integrated design allows the extension 111 to have both axial and radial positioning within the receiving groove 110, significantly improving the installation stability and operational smoothness of the upper brush head 109 during dynamic application. All components (bottle body 100, brush head tube body 103, auxiliary card tube 108, cap body 102) are connected by snap-fit, which not only simplifies the production process, but also makes it easier for users to quickly disassemble, clean or replace specific parts (such as replacing the upper and lower brush heads or the auxiliary card tube 108 separately), greatly improving the practicality and service life of the product and enabling convenient assembly, maintenance and replacement. This invention effectively solves the problems of uneven application, poor adhesion, and insufficient shine in existing single-brush lip gloss bottles through a convenient snap-fit ​​structure and dual-brush head design. The lower brush head extends into the bottle body 100 to ensure that the lip gloss is fully picked up, while the upper brush head 109, through the extension 111, cooperates with the receiving groove 110 to provide fine application, enhancing the uniformity and adhesion of the lip gloss, thereby improving the glossiness of the makeup. The integrated design of the upper brush head 109 and the extension 111 allows the extension 111 to have both axial and radial positioning within the receiving groove 110, significantly improving the installation stability and smoothness of the upper brush head 109 during dynamic application. At the same time, the snap-fit ​​connection of each component facilitates quick assembly and maintenance.

[0019] In this embodiment of the present invention, the upper end of the inner wall of the upper end cavity 105 is provided with a first annular snap-fit ​​groove 112 along the circumferential direction, and the outer wall of the auxiliary snap-fit ​​tube 108 is formed with a first annular snap-fit ​​ring 113 that is aligned and snap-fitted with the first annular snap-fit ​​groove 112. The annular snap-fit ​​structure precisely engages with the first annular snap-fit ​​groove 112 within the upper cavity 105 and the first annular snap-fit ​​ring 113 on the outer wall of the auxiliary snap-fit ​​tube 108, significantly improving the stability of the auxiliary snap-fit ​​tube 108 within the brush head tube 103. This ensures that the upper brush head 109 remains stable during the application process, preventing brush head tilting or shaking due to component loosening. This ensures the stable synergistic effect of the extension 111 and the receiving groove 110, enabling the upper brush head 109 to continuously achieve uniform glazing and detail outlining. At the same time, the evenly distributed force characteristics of the annular snap-fit ​​further enhance the ease of disassembly, allowing users to quickly clean or replace the auxiliary snap-fit ​​tube 108 component.

[0020] In this embodiment of the present invention, the inner bottom surface of the receiving groove 110 is provided with a second annular snap-fit ​​groove 114 along the circumferential direction, and the lower end of the inner wall of the upper end cavity 105 is formed with a second annular snap-fit ​​ring 115 that is aligned and snap-fitted with the second annular snap-fit ​​groove 114. The extension 111 of the upper brush head 109 is snapped between the second annular snap-fit ​​groove 114 and the second annular snap-fit ​​ring 115. By aligning and locking the second annular snap-fit ​​groove 114 at the bottom of the receiving groove 110 with the second annular snap-fit ​​ring 115 at the lower end of the inner wall of the upper cavity 105, the extension 111 of the upper brush head 109 is precisely clamped between the double annular snap-fit ​​interfaces, achieving multiple stabilizing effects. This structure forms a bidirectional mechanical constraint in the axial direction, completely eliminating the risk of longitudinal movement of the extension 111 when the coating force is applied. In the circumferential direction, the full coverage of the annular snap-fit ​​surface simultaneously suppresses the radial offset and rotational displacement of the extension 111, ensuring that the upper brush head 109 always maintains a stable posture during dynamic operation. At the same time, the extension 111, as a flexible medium, fills the gap of the double snap-fit ​​structure, which not only disperses local stress but also compensates for assembly tolerances through its own elasticity, significantly improving the impact resistance stability and coating trajectory accuracy of the upper brush head 109, fundamentally ensuring the reliability of the dual brush head collaborative function.

[0021] In this embodiment of the present invention, the inner wall of the upper end cavity 105 is provided with a plurality of vertical grooves 116 evenly distributed along the circumference, and the vertical grooves 116 penetrate vertically through the first annular snap-fit ​​groove 112 and the second annular snap-fit ​​ring 115. The vertical groove 116 provides elastic deformation space for the cavity wall when the auxiliary snap-fit ​​tube 108 is inserted, so that the first / second annular snap-fit ​​ring 115 can slide smoothly into the corresponding snap-fit ​​groove, avoiding component damage or jamming caused by hard friction, and significantly reducing assembly resistance. When disassembling the auxiliary clamp pipe 108, the vertical groove 116 becomes a stress relief channel, which can quickly release the ring clamp lock through the slight elastic expansion of the pipe wall, reducing the difficulty of disassembly and enhancing the convenience of disassembly. The evenly distributed vertical grooves 116 form an equally divided guide structure in the circumferential direction, ensuring that the auxiliary clamping pipe 108 is always vertically aligned and inserted, avoiding skewed wear on the clamping surface, while dispersing the local stress generated by repeated disassembly and assembly, extending the service life of the component, and improving the positioning accuracy and structural life.

[0022] In this embodiment of the present invention, the upper end of the outer wall of the auxiliary card tube 108 is formed with an outwardly protruding ring 117 along the circumferential direction, and the lower side wall of the protruding ring 117 abuts against the upper end of the brush head tube 103. The auxiliary card connector 108 has a circumferentially protruding annular structure at its upper end, which forms a rigid abutment with the upper end of the brush head tube 103. Without adding any new components, the protruding ring 117 acts as an axially limiting rigid stop, precisely controlling the insertion depth of the auxiliary card connector 108 and preventing excessive pressure from causing overload damage to the lower annular snap-fit ​​structure. The lower side wall of the protruding ring 117 forms a full-area planar contact with the upper end surface of the brush head tube 103, evenly dispersing the longitudinal pressure when the cover 102 is pressed down on the upper end of the auxiliary card connector 108, significantly enhancing the anti-sinking stability of the auxiliary card connector 108. At the same time, this abutment surface and the first annular snap-fit ​​groove 112 work together to construct a bidirectional axial constraint system, completely eliminating the axial movement gap of the auxiliary card connector 108, ensuring that the upper brush head 109 always maintains the preset working position, thereby ensuring the accuracy of the dual brush head collaborative application and the product's service life.

[0023] In this embodiment of the present invention, the outer wall of the protruding ring 117 is formed with a plurality of snap-fit ​​protrusions 118 along the circumferential direction, and the inner wall of the cover 102 is provided with a cover snap-fit ​​groove 119 that engages with the snap-fit ​​protrusions 118. By replacing the traditional threaded connection with a mechanical interlock, the efficiency of the connection between the cover 102 and the auxiliary snap-fit ​​connector 108 is significantly improved, enabling quick opening of the cover with one hand. The circumferentially distributed snap-fit ​​protrusions 118 ensure the anti-dislodgement strength and sealing stability of the cover 102. At the same time, the discrete contact mode of the protrusions and grooves greatly reduces wear caused by repeated opening and closing, extending the service life.

[0024] In this embodiment of the utility model, the lower end face of the mounting plate 104 is formed with a downward protruding first brush head step 120, and the lower end of the first brush head step 120 is formed with a downward protruding brush head mounting post 121. The lower end of the brush head mounting post 121 is provided with a brush head mounting hole 122, and the lower brush head is fixedly snapped into the brush head mounting hole 122. The upper end face of the mounting plate 104 is provided with an air-receiving groove 123 that is recessed into the first brush head step 120, and the air-receiving groove 123 is connected to the upper end cavity 105. The brush head mounting post 121 extends downward to form a support frame. The brush head mounting hole 122 at its end is used to fix the root of the lower brush head by snapping, which greatly increases the contact stability between the lower brush head and the mounting plate 104, significantly improves the bending strength of the lower brush head, and prevents the root of the brush head from breaking or the brush head from loosening when dipping. The air groove 123 is connected to the upper tube 105. When the upper brush head 109 and the auxiliary card connector 108 are inserted into the bottle body 100, the air in the upper tube 105 is guided to the air groove 123 to reduce atmospheric pressure, making the installation of the upper brush head 109 and the auxiliary card connector 108 more convenient. When the upper brush head 109 and the auxiliary card connector 108 are pulled out, the air in the air groove 123 is quickly replenished to reduce negative pressure, making the removal more convenient.

[0025] In this embodiment of the present invention, the inner wall of the lower end cavity 106 is formed with a first threaded interface 124, the upper end of the bottle body 100 is provided with a bottle body mounting groove 125, and the inner bottom surface of the bottle body mounting groove 125 is formed with a second threaded interface 126 that is screwed into the first threaded interface 124. The concealed threaded structure is recessed into the bottle mounting groove 125, forming a physical dust barrier that effectively prevents external contaminants from penetrating the lip gloss. The axial clamping force generated by the thread engagement creates a full-area sealing surface between the brush head tube 103 and the bottle 100, significantly improving the airtightness of the connection and preventing the lip gloss from evaporating or oxidizing. At the same time, the mechanical self-locking completely eliminates axial movement, systematically solving the pain points of traditional snap-fit ​​structures such as easy loosening, poor sealing, and high risk of contamination.

[0026] In this embodiment of the utility model, the outer diameters of the cover 102, the brush head tube 103, and the bottle 100 are the same. The uniform outer diameter eliminates the dust accumulation gaps caused by the traditional stepped structure, greatly reducing the difficulty of cleaning and enhancing hygiene. At the same time, the equal diameter stacking allows the cap 102 and the bottle 100 to form a seamless sealing surface when closed, effectively preventing external pollutants from entering the gaps between components. Furthermore, the improved coaxiality of the components further ensures the smoothness of opening and closing operations and structural stability, systematically enhancing the product's visual quality, user experience, and protective performance.

[0027] In this embodiment of the present invention, a serrated groove 127 is provided on the lower side wall of the lower end cavity 106 in the circumferential direction; The serrated groove 127 forms an elastic micro-region array on the wall of the lower end cavity 106. When the first threaded interface 124 is screwed into the second threaded interface 126 of the bottle body 100, the wall between the serrations undergoes controllable elastic deformation, effectively absorbing the cumulative error of the thread tolerance and the stress of thermal expansion and contraction. Its periodic toothed groove structure synchronously disperses the circumferential shear force generated by the tightening torque, significantly reducing the risk of local stress concentration and avoiding cracking at the root of the cavity.

[0028] In one embodiment, this application optimizes the fixing method of the upper brush head and the brush head tube body from pure adhesive bonding to a dual-mode collaborative mechanism of "mainly using auxiliary clamping tube pressing and fixing, and adhesive bonding as a supplement." This achieves the complementary advantages of physical constraint and chemical bonding. The pressing structure forms a rigid anti-displacement constraint in an instant through the mechanical interlocking of the auxiliary clamping tube and the tube cavity, overcoming the positioning drift problem before the pure adhesive bonding cures and ensuring the vertical assembly accuracy of the upper brush head. The adhesive layer, as an auxiliary means, only requires a small amount of adhesive, focusing on filling the micro gaps at the pressing interface, thereby avoiding the risk of stress cracking due to curing shrinkage of pure adhesive bonding. At the same time, this design retains the detachability of the components, greatly reducing maintenance and replacement costs, and systematically solving the core defects of traditional pure adhesive bonding, such as positioning inaccuracy, stress aging, and irreversible damage.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A conveniently assembled lip gloss bottle structure, comprising a bottle body (100), a lip gloss brush body (101), and a cap body (102), characterized in that, The lip gloss brush body (101) includes a brush head tube (103), the lower end of which is engaged with the upper end of the bottle body (100). The inner cavity of the brush head tube (103) is fixedly provided with a mounting plate (104), which divides the brush head tube (103) into an independent upper cavity (105) and a lower cavity (106). The lower cavity (106) is provided with a lower brush head fixedly connected to the mounting plate (104), which extends into the bottle body (100). An auxiliary retaining tube (108) is snapped into the upper end cavity (105), and an upper brush head (109) is installed inside the auxiliary retaining tube (108). A receiving groove (110) is provided circumferentially at the lower end of the outer wall of the auxiliary retaining tube (108). An extension (111) extending from the lower end of the auxiliary retaining tube (108) into the receiving groove (110) is integrally formed at the lower end of the upper brush head (109). The upper end of the auxiliary retaining tube (108) is snapped into the lower end of the cover (102).

2. The lip gloss bottle structure for convenient assembly according to claim 1, characterized in that, The upper end of the inner wall of the upper end cavity (105) is provided with a first annular snap-fit ​​groove (112) along the circumferential direction, and the outer wall of the auxiliary snap-fit ​​tube (108) is formed with a first annular snap-fit ​​ring (113) that is aligned and snap-fitted with the first annular snap-fit ​​groove (112).

3. The lip gloss bottle structure for convenient assembly according to claim 2, characterized in that, The inner bottom surface of the receiving groove (110) is provided with a second annular snap-fit ​​groove (114) along the circumferential direction. The lower end of the inner wall of the upper end cavity (105) is formed with a second annular snap-fit ​​ring (115) that is aligned and snap-fitted with the second annular snap-fit ​​groove (114). The extension (111) of the upper brush head (109) is snapped between the second annular snap-fit ​​groove (114) and the second annular snap-fit ​​ring (115).

4. The lip gloss bottle structure for convenient assembly according to claim 3, characterized in that, The inner wall of the upper end cavity (105) is provided with a plurality of vertical grooves (116) evenly distributed along the circumference. The vertical grooves (116) penetrate vertically through the first annular snap-fit ​​groove (112) and the second annular snap-fit ​​ring (115).

5. The lip gloss bottle structure for convenient assembly according to claim 4, characterized in that, The upper end of the outer wall of the auxiliary card connector (108) is formed with an outwardly protruding ring (117) along the circumferential direction, and the lower side wall of the protruding ring (117) abuts against the upper end of the brush head tube (103).

6. The lip gloss bottle structure for convenient assembly according to claim 5, characterized in that, The outer wall of the raised ring (117) is formed with a plurality of snap-fit ​​protrusions (118) along the circumferential direction, and the inner wall of the cover (102) is provided with a cover snap-fit ​​groove (119) that snaps into the snap-fit ​​protrusions (118).

7. A conveniently assembled lip gloss bottle structure according to any one of claims 1-6, characterized in that, The lower end face of the mounting plate (104) is formed with a downward protruding first brush head step (120), and the lower end of the first brush head step (120) is formed with a downward protruding brush head mounting post (121). The lower end of the brush head mounting post (121) is provided with a brush head mounting hole (122), and the lower brush head is fixedly snapped into the brush head mounting hole (122). The upper surface of the mounting plate (104) is provided with an air-giving groove (123) that is recessed into the first brush head step (120), and the air-giving groove (123) is connected to the upper end cavity (105).

8. The lip gloss bottle structure for convenient assembly according to claim 7, characterized in that, The inner wall of the lower end cavity (106) is formed with a first threaded interface (124), and the upper end of the bottle body (100) is provided with a bottle body mounting groove (125). The inner bottom surface of the bottle body mounting groove (125) is formed with a second threaded interface (126) that is screwed into the first threaded interface (124).

9. The lip gloss bottle structure for convenient assembly according to claim 8, characterized in that, The outer diameters of the cap (102), brush head tube (103), and bottle (100) are the same.

10. The lip gloss bottle structure for convenient assembly according to claim 9, characterized in that, The lower sidewall of the lower end cavity (106) is provided with a serrated groove (127) along the circumferential direction.