Double-ring symmetrical flexible integrated coaxial thread eyebrow pencil
By adopting a double-circle symmetrical flexible integrated coaxial thread structure in the eyebrow pencil, the problem of wear of the thread structure of the existing eyebrow pencil is solved, extending the service life and improving the smoothness of the rotation feel.
Patent Information
- Application Number
- CN202420859305.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-24
AI Technical Summary
The threaded structure of existing eyebrow pencils is easily worn during long-term use, resulting in loose refills or inability to use normally, and the rotation feels unsmooth.
A double-ring symmetrical flexible integrated coaxial thread structure is adopted, and openings are provided in the upper and lower parts of the thread base, and elastic columns are used to reduce friction and wear of the threaded part when the mold is discharged.
It extends the service life of the eyebrow pencil refill, enhances durability, provides a smoother rotation feel, and has greater axial bearing force in the limit position.
Smart Images

Figure CN222603991U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of eyebrow pencils, in particular to a double-circle symmetrical flexible integrated coaxial thread eyebrow pencil. Background Art
[0002] At present, there are many eyebrow pencils with plastic shells on the market, most of which use rotation to achieve the core ejection and retraction, but the actual use experience such as the feel of use, the anti-rotation effect, and the locking force is not perfect. Due to the limitations of processing conditions, the control of internal mechanical parts is not precise, and most of them use a double-petal thread structure, which is not smooth when rotating. The eyebrow pencil core is usually connected to the shell through a thread structure. This connection method needs to consider the stability of the core and the convenience of replacement. However, during long-term use, due to frequent rotation of the core, the threaded part may be worn or damaged, causing the core to loosen or fail to work properly. Therefore, it is necessary to propose a solution to this technical problem. Utility Model Content
[0003] 1. Technical issues to be resolved
[0004] In view of the deficiencies in the prior art, the utility model provides a double-circle symmetrical flexible integrated coaxial thread eyebrow pencil.
[0005] (II) Technical solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-circle symmetrical flexible integrated coaxial threaded eyebrow pencil, comprising a pen cover and a pen barrel, the pen barrel is provided with an opening, the opening is provided with a screw, the screw is provided with a mounting seat and a threaded seat, the mounting seat is provided with an assembly groove, a groove is provided between the outer side of the assembly groove and the outer side of the mounting seat, the grooves are provided in plurality and arranged in a ring array, the mounting seat is provided with a pen head seat, the pen head seat is snap-fitted and connected to the pen barrel, the assembly groove is provided with a pen core, the screw is a double-circle threaded rod, and the threaded seat is provided with symmetrical flexible threads.
[0007] Furthermore, the utility model is improved in that the inner wall of the pen cover and the outer wall of the pen barrel are both provided with sealing rings.
[0008] Furthermore, the utility model is improved in that an opening is formed at one end of the threaded seat, an elastic column is provided on the opening, and two openings are provided.
[0009] Furthermore, the utility model is improved in that a mounting groove is provided at one end of the pen cover, and a pencil sharpener and a tail plug are provided on the mounting groove.
[0010] (III) Beneficial effects
[0011] Compared with the prior art, the utility model provides a double-circle symmetrical flexible integrated coaxial thread eyebrow pencil, which has the following beneficial effects:
[0012] The double-circle symmetrical flexible integrated coaxial thread eyebrow pencil adopts a symmetrical flexible thread structure inside the structure. Openings are set at the upper and lower parts of the thread seat. When the thread seat is demolded, the elastic column therein is first ejected, and the symmetrical flexible thread is demolded later. The new mold structure reduces direct friction and wear of the thread part. By reducing the friction and wear of the thread part and protecting the thread structure, the service life of the eyebrow pencil core can be extended, and the durability is enhanced. It is suitable for multiple fields of makeup and has a smoother rotation feel, especially at the front and rear extreme positions, and has a greater axial bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a half-section view of the structure of the utility model;
[0014] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the middle screw Figure 1 ;
[0015] Figure 3 For this utility model Figure 1 Schematic diagram of the structure of the middle screw Figure 2 ;
[0016] Figure 4 For this utility model Figure 1 Structure diagram of the middle thread seat Figure 1 ;
[0017] Figure 5 For this utility model Figure 1 Structure diagram of the middle thread seat Figure 2 .
[0018] In the figure: 1. Pen cover; 2. Pen barrel; 3. Mounting seat; 4. Threaded seat; 5. Pen tip seat; 6. Pen core; 7. Sealing ring; 8. Elastic column; 9. Pencil sharpener; 10. Tail plug; 11. Push column; 12. Screw. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-5The utility model is a double-circle symmetrical flexible integrated coaxial thread eyebrow pencil, comprising a pen cover 1 and a pen body 2, the pen body 2 is provided with an opening, the opening is provided with a screw 12, the screw 12 is provided with a mounting seat 3 and a threaded seat 4, the mounting seat 3 is provided with a mounting groove, the outer side of the mounting groove and the outer side of the mounting seat 3 are provided with a groove, the grooves are provided with a plurality of and arranged in an annular array, the mounting seat 3 is provided with a pen head seat 5, the pen head seat 5 is snap-connected to the pen body 2, the mounting groove is provided with a pen core 6, the screw 12 is a double-circle threaded rod, and the threaded seat 4 is provided with a symmetrical flexible thread. In this embodiment, people The staff just loves that the pen core 6 is put into the assembly groove of the mounting seat 3, and then the pen head seat 5 is assembled on the mounting seat 3. Through the multiple and annular grooves, one end of the mounting seat 3 can be squeezed and clamped to clamp the pen core 6, so as to prevent the pen core 6 from leaving from one end of the mounting seat 3, and the pen head seat 5 is clamped on the pen barrel 2, so as to facilitate the use of this structure. When the pen core 6 needs to be used, the pen head seat 5 is rotated to make the screw 12 rotate stably through the symmetrical flexible thread opened by the threaded seat 4, so that the pen core 6 drives the mounting seat 3 to move, and the pen core 6 extends out of the pen head seat 5, which is convenient for use. When the pen core 6 needs to be replaced, the pen head seat 5 is removed directly, so as to directly replace the pen core 6.
[0021] In this solution, the inner wall of the pen cover 1 and the outer wall of the pen body 2 are both provided with a sealing ring 7, and the sealing ring 7 can effectively seal the pen cover 1 and the pen body 2.
[0022] In this solution, an opening is provided at one end of the threaded seat 4, and an elastic column 8 is provided on the opening. There are two openings, and the softness of the deformation is determined by the width and thickness of the elastic columns 8 on the two openings, providing a smooth rotation feel, and having a certain elasticity at the extreme position, through a certain sliding effect, to prevent the symmetrical flexible threads on the threaded seat 4 from being damaged.
[0023] In this solution, a mounting groove is provided at one end of the pen cover 1 , and a pencil sharpener 9 and a tail plug 10 are provided on the mounting groove. The pencil sharpener 9 can be taken out by removing the tail plug 10 , so that the pencil sharpener 9 can be used conveniently.
[0024] The structure adopts a symmetrical flexible thread structure inside. By setting openings in the upper and lower parts of the thread seat 4, and when the thread seat 4 is demolded, the elastic column 8 therein is first ejected, and the symmetrical flexible thread is demolded later. The new mold structure reduces the direct friction and wear of the threaded part, ensures the integrity and stability of the thread, and the screw 12, which is a double-circle threaded rod, can evenly disperse the axial and radial forces generated during rotation. When subjected to relatively large torsional force, the position of the thread seat 4 can flexibly bounce to prevent parts from being damaged due to excessive external force, thereby extending the service life, and can provide replaceable pen cores 6, improve the utilization rate of plastic accessories, and be more environmentally friendly.
[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A double-circle symmetrical flexible integrated coaxial thread eyebrow pencil, comprising a pen cover (1) and a pen holder (2), characterized in that: The pen body (2) is provided with an opening, the opening is provided with a screw (12), the screw (12) is provided with a mounting seat (3) and a threaded seat (4), the mounting seat (3) is provided with an assembly groove, an outer side of the assembly groove and an outer side of the mounting seat (3) are provided with a groove, the grooves are provided in a plurality and arranged in a ring array, the mounting seat (3) is provided with a pen head seat (5), the pen head seat (5) is snap-fitted and connected to the pen body (2), the assembly groove is provided with a pen core (6), the screw (12) is a double-circle threaded rod, and the threaded seat (4) is provided with a symmetrical flexible thread.
2. The double-circle symmetrical flexible integrated coaxial thread eyebrow pencil according to claim 1, characterized in that: The inner wall of the pen cover (1) and the outer wall of the pen holder (2) are both provided with sealing rings (7).
3. The double-circle symmetrical flexible integrated coaxial thread eyebrow pencil according to claim 2, characterized in that: An opening is formed at one end of the threaded seat (4), and an elastic column (8) is provided on the opening. There are two openings.
4. The double-circle symmetrical flexible integrated coaxial thread eyebrow pencil according to claim 3, characterized in that: One end of the pen cover (1) is provided with a mounting groove, and a pencil sharpener (9) and a tail plug (10) are provided on the mounting groove.