Modified tail plug oil anti-ink-vibration gel pen
By modifying the tail plug oil and baffle structure, the problems of ink backflow and refill movement in ballpoint pens are solved, achieving refill stability and cleanliness, and improving writing quality and user experience.
Patent Information
- Application Number
- CN202423237022.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing ballpoint pens suffer from ink backflow and refill shifting issues during use, affecting writing quality and user experience.
Modified tail plug oil is used, with fumed nano silica added as a thickener, polyether polyol as a plasticizer, and a broad-spectrum antibacterial agent added. At the same time, a baffle and a sponge layer are set at the pen refill to fix the pen refill, thereby enhancing the sealing performance and stability.
It improves the fluidity and flexibility of the tail plug oil, enhances sealing performance, ensures pen refill stability, prevents ink spread, keeps the pen refill clean, and improves the writing experience.
Smart Images
Figure CN223618486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ballpoint pen technology, specifically to a modified tail plug oil-preventing ink cross-contamination ballpoint pen. Background Technology
[0002] Ballpoint pens are a widely used writing instrument, favored for their ease of use and affordability. To prevent ink backflow during use, a substance called a stopper oil is usually filled at the back of the pen refill. The main function of the stopper oil is to prevent ink backflow and ensure smooth writing.
[0003] However, while end-cap oil has solved the ink backflow problem to some extent, currently available end-cap oils still have some shortcomings, particularly in preventing ink migration. This can lead to unnecessary ink stains or ink waste during writing, thus affecting the user's writing experience. Furthermore, due to the lack of a refill securing mechanism, the lead in ballpoint pens may move longitudinally within the pen barrel during use. This movement can cause unstable writing and even ink leakage. This not only affects writing quality and efficiency but can also cause inconvenience and frustration for the user.
[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content
[0005] In response to the problems in related technologies, this utility model proposes a modified tail plug oil-proof ballpoint pen to overcome the aforementioned technical problems existing in the existing related technologies.
[0006] Therefore, the specific technical solution adopted by this utility model is as follows:
[0007] A modified tail-stop oil anti-ink-crossing gel pen includes a gel pen body, which comprises a pen refill, a pen barrel, a pen cap, and a rear end cap. The pen barrel is fixedly connected to the rear end cap. The pen refill contains ink and tail-stop oil, with the tail-stop oil located at the rear end of the ink. The tail-stop oil is composed of base oil, thickener, plasticizer, stabilizer, and antibacterial and antifungal agent. The rear end cap has a baffle inside, one end of which is connected to a screw. The rear end cap has a threaded hole that is threadedly connected to the screw.
[0008] Furthermore, the pen cap includes a first connector and a second connector, the first connector being threadedly connected to the second connector.
[0009] Furthermore, the first connector has a mounting base inside, and the mounting base has a sponge layer inside, which matches one end of the pen refill.
[0010] Furthermore, the mounting base has a mounting block at its rear end, and the first connector has a groove inside. The mounting block matches the groove, and the mounting block and the first connector are connected by a magnet.
[0011] Furthermore, the pen barrel includes a pen holder and a pen tip, with the pen holder and pen tip threaded together.
[0012] Furthermore, the pen holder has anti-slip textures.
[0013] Furthermore, through holes are provided on the baffle and the rear end cover.
[0014] The beneficial effects of this utility model are as follows:
[0015] (1) By adding fumed nano silica as a thickener, polyether polyol as a plasticizer, and broad-spectrum antibacterial agent as an antibacterial and antifungal agent to the end cap oil, the fluidity and flexibility of the end cap oil can be improved, while the sealing performance of the end cap oil can be enhanced. Furthermore, by setting a baffle, a certain pressure can be applied directly to the pen refill, further fixing the position of the pen refill and ensuring that the pen refill remains stable during writing.
[0016] (2) By incorporating a sponge layer inside the pen cap, the sponge layer within the mounting base can maintain close contact with the pen refill when the pen cap is mounted on the pen barrel. This allows the sponge layer to effectively absorb excess ink from the refill, preventing it from spreading inside the pen cap and thus keeping the inside of the cap clean, as well as ensuring the cleanliness of the pen refill. Furthermore, the sponge layer can be easily disassembled and replaced by connecting the mounting base to the first connector via a magnet. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a front view of a modified tail plug oil-proof ballpoint pen according to an embodiment of the present utility model;
[0019] Figure 2 This is a structural diagram of a modified tail plug oil-proof ballpoint pen barrel according to an embodiment of the present utility model;
[0020] Figure 3 This is a diagram showing the internal structure of a modified tail plug oil-preventing ink-crossing neutral pen refill according to an embodiment of the present invention.
[0021] Figure 4This is a structural diagram of a modified tail plug oil-proof ballpoint pen cap according to an embodiment of the present utility model.
[0022] In the picture:
[0023] 1. Body of the ballpoint pen; 2. Pen refill; 3. Pen barrel; 4. Rear end cap; 5. Ink; 6. Tail plug oil; 7. Baffle; 8. Screw; 9. Threaded hole; 10. First connector; 11. Second connector; 12. Mounting base; 13. Sponge layer; 14. Mounting block; 15. Groove; 16. Magnet; 17. Anti-slip texture; 18. Through hole; 19. Pen cap; 20. Pen barrel; 21. Pen tip. Detailed Implementation
[0024] 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.
[0025] According to an embodiment of the present invention, a modified tail plug oil-proof ballpoint pen is provided.
[0026] Example 1
[0027] like Figures 1-4As shown, the modified tail-stop oil anti-ink-crossing gel pen according to an embodiment of this utility model includes a gel pen body 1, which comprises a pen core 2, a pen barrel 3, a pen cap 19, and a rear end cap 4. The pen barrel 3 is fixedly connected to the rear end cap 4. The pen core 2 contains ink 5 and tail-stop oil 6, which is located at the rear end of the ink 5. The tail-stop oil 6 is composed of base oil, thickener, plasticizer, stabilizer, and antibacterial and antifungal agent. The thickener is composed of fumed silica, which increases the viscosity and consistency of the tail-stop oil 6, making it more stable and uniform. The addition of polyether polyol as a plasticizer improves the fluidity and extensibility of the ink 5, while giving the tail-stop oil 6 a certain degree of flexibility to prevent breakage or failure due to excessive hardening. In addition, polyether polyols have good compatibility with ballpoint pen ink and will not react with the ink, meeting the requirement that the tail plug oil 6 and the ink are immiscible. Adding vitamin E or phenolic antioxidants as stabilizers can extend the service life of the tail plug oil 6 and prevent oxidative degradation. Furthermore, adding broad-spectrum antibacterial agents as antibacterial and antifungal agents can effectively inhibit the growth of bacteria and mold, preventing microbial contamination of the tail plug oil 6 during use. The rear end cap 4 has a baffle 7 inside, one end of which is connected to the screw 8. The rear end cap 4 has a threaded hole 9, which is threadedly connected to the screw 8. The pen barrel 3 includes a pen holder 20 and a pen tip 21, which are threadedly connected. The pen holder 20 has anti-slip texture 17, and the baffle 7 and the rear end cap 4 have through holes 18. Through the above solutions, by adding stabilizers, thickeners, and plasticizers to the tail plug oil 6, the stability and sealing performance of the tail plug oil 6 are improved. Furthermore, when installing the pen refill 2, the pen refill 2 is initially fixed by placing it inside the pen holder 20 and then installing the pen tip 21 on the pen holder 20. Then, by rotating the screw 8, the baffle 7 is moved downwards, causing the baffle 7 to abut against the pen refill 2, thus securing the pen refill 2. The advantage of this installation method is that the position of the baffle 7 can be precisely adjusted by rotating the screw 8 to accommodate pen refills 2 of different sizes and shapes. Simultaneously, the abutment between the baffle 7 and the pen refill 2 provides additional support, preventing the pen refill 2 from moving or shaking during use.
[0028] like Figures 1-4As shown, the pen cap 19 includes a first connector 10 and a second connector 11. The first connector 10 and the second connector 11 are threaded together. The first connector 10 has a mounting base 12 inside, and the mounting base 12 has a sponge layer 13 inside. The sponge layer 13 matches one end of the pen refill 2. The rear end of the mounting base 12 has a mounting block 14. The first connector 10 has a groove 15 inside, and the mounting block 14 matches the groove 15. The mounting block 14 and the first connector 10 are connected by a magnet 16. With this design, during the use of the ballpoint pen... By installing the pen cap 19 onto the pen holder 20, the sponge layer 13 inside the mounting base 12 can be in close contact with the pen refill 2. The sponge layer 13 can absorb excess ink 5 on the pen refill 2, ensuring the cleanliness of the pen refill 2. When it is necessary to replace the sponge layer 13, the first connector 10 can be rotated to separate the first connector 10 from the second connector 11. Then, by pulling the mounting base 12 outward, the mounting block 14 can be removed from the groove 15, making it convenient to replace the mounting base 12 and ensuring the cleanliness of the inside of the pen cap 19.
[0029] In summary, by utilizing the above-mentioned technical solution of this utility model, by adding fumed silica as a thickener, polyether polyol as a plasticizer, and a broad-spectrum antibacterial agent as an antibacterial and antifungal agent to the end cap oil 6, the fluidity and flexibility of the end cap oil 6 can be improved, while simultaneously enhancing its sealing performance. Furthermore, by setting the baffle 7, a certain pressure is directly applied to the pen refill 2, further fixing its position and ensuring its stability during writing. Additionally, by providing a sponge layer 13 inside the pen cap 19, when the pen cap 19 is mounted on the pen barrel 3, the sponge layer 13 inside the mounting base 12 can be in close contact with the pen refill 2. Thus, when there is excessive ink 5 on the pen refill 2, the sponge layer 13 can effectively absorb this excess ink 5, preventing it from spreading inside the pen cap 19, thereby keeping the inside of the pen cap 19 clean and ensuring the cleanliness of the pen refill 2. Finally, by connecting the mounting base 12 to the first connector 10 via a magnet 16, the sponge layer 13 can be easily disassembled and replaced.
[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A modified tail plug oil-based anti-ink-crossing gel pen, characterized in that, The pen includes a ballpoint pen body (1), which consists of a pen core (2), a pen barrel (3), a pen cap (19), and a rear end cap (4). The pen barrel (3) is fixedly connected to the rear end cap (4). The pen core (2) contains ink (5) and tail plug oil (6). The tail plug oil (6) is located at the rear end of the ink (5). The tail plug oil (6) is composed of base oil, thickener, plasticizer, stabilizer, and antibacterial and antifungal agent. The rear end cap (4) contains a baffle (7). One end of the baffle (7) is connected to a screw (8). The rear end cap (4) has a threaded hole (9) which is threadedly connected to the screw (8).
2. A modified tail plug oil-proof ballpoint pen according to claim 1, characterized in that, The pen cap (19) includes a first connector (10) and a second connector (11), wherein the first connector (10) and the second connector (11) are threadedly connected.
3. A modified tail plug oil-proof ballpoint pen according to claim 2, characterized in that, The first connector (10) has a mounting base (12) inside, and the mounting base (12) has a sponge layer (13) inside, which matches one end of the pen refill (2).
4. A modified tail plug oil-proof ballpoint pen according to claim 3, characterized in that, The mounting base (12) has a mounting block (14) at its rear end. The first connector (10) has a groove (15) inside. The mounting block (14) matches the groove (15). The mounting block (14) and the first connector (10) are connected by a magnet (16).
5. A modified tail plug oil-proof ballpoint pen according to claim 1, characterized in that, The pen barrel (3) includes a pen holder (20) and a pen tip (21), wherein the pen holder (20) and the pen tip (21) are threadedly connected.
6. A modified tail plug oil-proof ballpoint pen according to claim 5, characterized in that, The pen holder (20) is provided with anti-slip texture (17).
7. A modified tail plug oil-proof ballpoint pen according to claim 1, characterized in that, The baffle (7) and the rear cover (4) are provided with through holes (18).