Elastically-locked quick-refill-changing extremely-fine eyebrow pencil
By using a full-section half-thread structure and spring seat of screw and threaded seat in the eyebrow pencil, the refill core is quickly replaced and stable fixing, solving the problem of difficult replacement and shaking of the existing eyebrow pencil core, and improving the user experience.
Patent Information
- Application Number
- CN202421457943.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-06-24
AI Technical Summary
Existing eyebrow pencils are difficult to quickly replace the refill, and the extremely thin refill is easily shaken when used, resulting in poor user experience.
An elastic lock fast core replacement extremely thin eyebrow pencil is designed, using a full-segment half-thread structure of screw and threaded seat, combining the spring seat and sealing ring to achieve rapid replacement and stable fixation of the refill core.
It realizes rapid replacement and stable fixation of the refill, avoids shaking of the refill, improves the user experience, and can be matched with extremely thin refills to enrich the use scenarios.
Smart Images
Figure CN222885248U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of eyebrow pencils, in particular to an ultra-thin eyebrow pencil with elastic locking and quick refill replacement. Background Technique
[0002] At present, the eyebrow pencils on the market basically cannot replace the refill. For the relatively common wooden shell eyebrow pencils, the shell needs to be shaved off before use and the shape of the refill needs to be adjusted before it can be used. In this context, many plastic shell eyebrow pencils have gradually become the mainstream. Although the refill can be replaced, it is only limited to refills of the same specification, and there are requirements for the hardness of the refill. Customers cannot replace the relatively soft refill by themselves, and their hands will be soiled during replacement, and the experience is not good. In addition, since most plastic shell eyebrow pencils use the method of rotating out the refill, there needs to be a certain gap between the components, which causes the refill to shake during use. The most important thing is that the ultra-thin refill design makes eyebrow drawing more precise and delicate. The ultra-thin refill can easily outline natural eyebrow lines and create a three-dimensional and natural eyebrow shape. When drawing eyebrows, users can better control the strength and angle to avoid drawing overly thick or unnatural eyebrows.
[0003] Therefore, developing an ultra-thin eyebrow pencil with elastic locking and quick refill replacement has a certain market prospect. Content of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] In view of the deficiencies of the prior art, the utility model provides an ultra-thin eyebrow pencil with elastic locking and quick refill replacement.
[0006] (2) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solution: An ultra-thin eyebrow pencil with elastic locking and quick refill replacement, including a pen body, the pen body is composed of a pen sleeve assembly and a pen rod, the pen sleeve assembly includes an eyebrow pencil pen sleeve and a brush pen sleeve, the pen rod includes a pen tip seat and an inner rod, the pen tip seat is arranged at the top of the inner rod, a pen refill is arranged at the top of the pen tip seat, a brush rod is arranged at the bottom of the pen rod, the eyebrow pencil pen sleeve is located at one end of the pen body, the brush pen sleeve is located at the other end of the pen body, a screw rod and a threaded seat are arranged inside the pen tip seat, the bottom end of the screw rod is in threaded connection with the threaded seat, the top end of the screw rod is connected with the pen tip seat, a spring seat is arranged at the bottom of the pen tip seat, a spring is arranged on the spring seat, one end of the spring is sleeved on the pen tip seat, and a brush rod is arranged inside the bottom end of the pen rod.
[0008] Furthermore, the utility model is improved in that the pen tip seat is provided with a three-piece oblique guide integral slot protection structure, the three-piece oblique guide integral slot protection structure is adaptively connected with the middle section structure of the screw rod, and the top of the inner hole of the pen tip seat and the top of the screw rod are integrally connected by a slot.
[0009] Further, the improvement of the present utility model is that the internal thread of the threaded seat is a symmetrical structure of integral half-threads on the left and right, and positioning blocks are arranged on the integral half-threads.
[0010] Further, the improvement of the present utility model is that a plurality of arc-shaped convex points are arranged inside the spring seat.
[0011] Further, the improvement of the present utility model is that the eyebrow pencil sleeve, the inner rod, the brush seat, and the brush sleeve are all made of high-strength environmental protection medical-grade plastic materials.
[0012] Further, the improvement of the present utility model is that a counterweight block is arranged between the brush seat and the spring seat.
[0013] Further, the improvement of the present utility model is that a groove is arranged between the pen tip seat and the inner rod, a sealing ring is arranged inside the groove, and the sealing ring is made of environmental protection silica gel material.
[0014] Further, the improvement of the present utility model is that the pen tip seat, the screw rod, the threaded seat, the pen core and the sealing ring form a replaceable core assembly.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the present utility model provides an elastic locking and quick core-changing ultra-thin eyebrow pencil, which has the following beneficial effects:
[0017] For this elastic locking and quick core-changing ultra-thin eyebrow pencil, due to the elastic force provided by the spring between the components, the overall firmness is relatively good, and the pen core will not shake during use. The screw rod adopts an integrated axial elastic structure, and the pen tip seat is designed with a three-piece oblique guiding integral slot protection structure, which has better stability when cooperating with the screw rod. This structure has the function of protecting the ultra-thin pen core. Therefore, it can be paired with an ultra-thin pen core to enrich various usage scenarios and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic structural diagram of the present utility model;
[0019] Figure 2 is of the present utility model Figure 1 a schematic structural diagram of the screw rod in;
[0020] Figure 3 is of the present utility model Figure 1 a schematic structural diagram of the pen tip seat in;
[0021] Figure 4 is of the present utility model Figure 3 a schematic internal side view structure diagram of;
[0022] Figure 5For the present utility model Figure 1 Schematic structural view of the threaded seat in it;
[0023] Figure 6 For the present utility model Figure 1 Schematic structural view of the spring seat in it;
[0024] Figure 7 For the present utility model Figure 1 Schematic three-dimensional external structure view of the pen tip seat in it;
[0025] Figure 8 For the present utility model Figure 7 Schematic disassembled structural view of the pen tip seat in it;
[0026] In the figure: 1. Pen tip seat; 2. Screw rod; 3. Inner rod; 4. Threaded seat; 5. Spring seat; 6. Pen rod; 8. Brush seat; 9. Eyebrow pencil sleeve; 10. Brush pen sleeve; 11. Brush rod; 13. Sealing ring; 14. Pen core; 15. Three-piece inclined guide integral slot-type protection structure. Specific embodiments
[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0028] Please refer to Figure 1-8 , an elastic locking and quick core-changing ultra-fine eyebrow pencil, comprising a pen body, the pen body is composed of a pen sleeve assembly and a pen rod 6, the pen sleeve assembly includes an eyebrow pencil sleeve 9 and a brush pen sleeve 10, the pen rod 6 includes a pen tip seat 1 and an inner rod 3, the pen tip seat 1 is arranged at the top of the inner rod 3, a pen core 14 is arranged at the top end of the pen tip seat 1, a brush rod 11 is arranged at the bottom end of the pen rod 6, the eyebrow pencil sleeve 9 is located at one end of the pen body, the brush pen sleeve 10 is located at the other end of the pen body, a screw rod 2 and a threaded seat 4 are arranged inside the pen tip seat 1, the bottom end of the screw rod 2 is threadedly connected to the threaded seat 4, the top end of the screw rod 2 is connected to the pen tip seat 1, a spring seat 5 is arranged at the bottom of the pen tip seat 1, a spring 7 is arranged on the spring seat 5, one end of the spring 7 is sleeved on the pen tip seat 1, and a brush rod 11 is arranged inside the bottom end of the pen rod 6.
[0029] In this embodiment, the eyebrow pencil cap 9, the inner rod 3, the brush seat 8, and the brush pencil cap 10 are made of high-strength environmental protection medical-grade plastic, and are designed with an interference sealing structure. A sealing ring 13 is also added at the position where rotation is required between the pen tip seat 1 and the inner rod 3 to isolate the external environment to the greatest extent, thereby greatly extending the shelf life of the product. The sealing ring 13 is made of environmental protection silica gel material.
[0030] In this embodiment, an integrated axial elastic structure is designed at the tail position of the screw rod 2 to provide appropriate overload torque. That is, when the screw rod 2 is rotated normally, through the rotation of the thread, the functions of core extrusion and core return are achieved. When reaching the extreme position at the top or end, when the torque exceeds the force that the thread can bear, the tail position of the screw rod 2 is squeezed inward, so as to achieve the function of reminding the user and protecting the thread from being damaged. A three-piece inclined guide recoverable elastic structure is designed at the mouth position of the screw rod 2 to provide appropriate axial clamping force. That is, when the pen core 14 enters the core, the inner hole size of the screw rod 2 is large at the top and small at the bottom, and there is a uniformly slotted middle section, so that the pen core 14 has better guidance and more uniform exhaust, and can better protect the ultra-thin pen core 14. The outer dimension of the mouth position of the screw rod 2 is small at the top and large at the bottom. After the ultra-thin pen core 14 enters the core, the mouth will rebound outward and expand evenly, making the inner hole fit with the pen tip more tightly, thereby reducing the shaking of the ultra-thin pen core 14 when the screw rod 2 rotates and preventing the damage of the ultra-thin pen core 14, ensuring the integrity of the ultra-thin pen core 14 of the eyebrow pencil.
[0031] In this embodiment, the pen tip seat 1 is designed with a three-piece inclined guide integral slot protection structure 15 to provide appropriate radial protection force. That is, when the screw rod 2 is normally installed in the pen tip seat 1, the three-piece structure of the pen tip seat 1 and the middle section structure of the screw rod 2 are integrally matched for protection, and the top of the inner hole of the pen tip seat 1 and the top of the screw rod 2 are also an integral slot structure to provide appropriate radial protection force. When the screw rod 2 is rotated normally, the crosstalk between the pen tip seat 1 and the screw rod 2 can be more effectively reduced, protecting the damage of the ultra-thin pen core 14. The integral slot protection structure of the pen tip seat 1 is more conducive to preventing the damage of the ultra-thin eyebrow pencil after the drop test.
[0032] In this embodiment, the thread seat 4 is designed with an integral half-thread left-right symmetric protection structure to effectively protect the integrity of the thread structure. The internal thread structure of the thread seat 4 adopts an integral half-thread, which can be more easily demolded, more effectively protect the integrity and effectiveness of the thread, thereby avoiding thread damage. And a 4-point precise positioning structure is adopted on the half-thread. When the left and right thread seats 4 are assembled, they are completely symmetric and accurately positioned, so as to ensure the symmetry and effectiveness of the left and right threads. When the screw rod 2 is rotated normally, the axial rotation force can be more stable, greatly reducing the shaking when the screw rod 2 rotates, and ensuring the damage of the ultra-thin pen core 14 of the eyebrow pencil.
[0033] In this embodiment, a spring is added between the spring seat 5 and the inner rod 3, and the spring seat 5 is always subjected to a downward elastic force after assembly.
[0034] In this embodiment, a plurality of arc-shaped bumps are designed inside the spring seat 5, and the wall thickness is removed between adjacent bumps, making it have independent elasticity. The arc-shaped bumps inside the spring seat 5 can elastically slide into the pen tip seat 1 during assembly. After the assembly is completed, the elastic force of the spring acts on the spring seat 5, and the spring seat 5 acts on the pen tip seat 1, thereby achieving the function of elastic locking.
[0035] In this embodiment, the replaceable core assembly composed of the pen tip seat 1, the screw 2, the threaded seat 4, the pen core 14, and the sealing ring 13 can provide users with usage scenarios of various shapes, sizes, and materials. It can be simply plugged and unplugged according to the actual needs of users to achieve quick replacement.
[0036] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An elastic locking quick-change core ultra-fine eyebrow pencil, characterized by: The invention comprises a pen body, wherein the pen body is composed of a pen cover assembly and a pen holder (6), wherein the pen cover assembly comprises an eyebrow pencil cover (9) and a brush cover (10), wherein the pen holder (6) comprises a pen head seat (1) and an inner rod (3), wherein the pen head seat (1) is arranged on the top of the inner rod (3), a pen core (14) is arranged on the top of the pen head seat (1), and a brush rod (11) is arranged on the bottom of the pen holder (6), wherein the eyebrow pencil cover (9) is located at one end of the pen body, and the brush cover (10) is arranged on the inner rod (3). 10) is located at the other end of the pen body, a screw (2) and a threaded seat (4) are arranged inside the pen head seat (1), the bottom end of the screw (2) is threadedly connected to the threaded seat (4), the top end of the screw (2) is connected to the pen head seat (1), a spring seat (5) is arranged at the bottom of the pen head seat (1), a spring (7) is arranged on the spring seat (5), one end of the spring (7) is sleeved on the pen head seat (1), and a brush rod (11) is arranged inside the bottom end of the pen shaft (6).
2. The elastic locking quick-change core ultra-fine eyebrow pencil according to claim 1, characterized in that: The pen holder (1) is provided with a three-piece obliquely guided full-section slot-type protection structure (15), the three-piece obliquely guided full-section slot-type protection structure (15) is adaptively connected to the middle section structure of the screw rod (2), and the top of the inner hole of the pen holder (1) and the top of the screw rod (2) are connected by an integrated slot.
3. The elastic locking quick-change core ultra-fine eyebrow pencil according to claim 2, characterized in that: The internal thread of the threaded seat (4) is a left-right symmetrical structure of a full-section half-side thread, and a positioning block is arranged on the full-section half-side thread.
4. The elastic locking quick-change core ultra-fine eyebrow pencil according to claim 3, characterized in that: A plurality of circular arc convex points are arranged inside the spring seat (5).
5. The elastic locking quick-change core ultra-fine eyebrow pencil according to claim 4, characterized in that: The eyebrow pencil cover (9), the inner rod (3), the brush holder (8) and the brush cover (10) are all made of high-strength environmentally friendly medical-grade plastic material.
6. The elastic locking quick-change core ultra-fine eyebrow pencil according to claim 5, characterized in that: A counterweight block (12) is arranged between the brush seat (8) and the spring seat (5).
7. The elastic locking quick-change core ultra-fine eyebrow pencil according to claim 6, characterized in that: A groove is provided between the pen head seat (1) and the inner rod (3), a sealing ring (13) is provided inside the groove, and the sealing ring (13) is made of environmentally friendly silica gel material.
8. The elastic locking quick-change core ultra-fine eyebrow pencil according to claim 7, characterized in that: The pen tip seat (1), the screw rod (2), the threaded seat (4), the pen core (14) and the sealing ring (13) form a replaceable core assembly.