Color highlighter capable of preventing ink leakage
By using sealed end and tail seals to seal the gap between the pen tip and the pen tube in the highlighter, the problems of ink evaporation and leakage are solved, extending the life of the highlighter.
Patent Information
- Application Number
- CN202422065585.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-25
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-08-25
AI Technical Summary
The ink in existing highlighter cartridges tends to evaporate and dry out when exposed to air, resulting in poor writing performance. Furthermore, ink can easily leak from the gap between the pen tip and the pen barrel, affecting the lifespan of the pen.
The gap between the pen tip and the pen tube is sealed by sealing end and tail seals, and the pen tip is further sealed by the pen cap to ensure that the ink does not easily evaporate or leak.
It effectively reduces ink evaporation and leakage, extends the lifespan of the highlighter, and improves the sealing of the pen refill.
Smart Images
Figure CN223494161U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of writing instruments, and in particular to a leak-proof colored highlighter. Background Technology
[0002] A highlighter pen is a type of pen used for marking. It uses a thicker, lighter ink to cover key areas to make marks, ensuring the text remains legible without obscuring it. The ink in highlighters contains fluorescent agents; when exposed to ultraviolet light, these agents fluoresce, emitting white light and creating a bright, fluorescent effect. Highlighters are commonly used in offices and for studying.
[0003] A highlighter pen generally includes a pen body, a detachable pen tip attached to the front of the pen body, a refill inside the pen body, and a cap that covers the pen tip. The pen body has a mounting slot for the refill. After the refill is installed in the mounting slot, the pen tip is threaded onto the front of the pen body, and then the cap is pressed onto the front of the pen body, completing the highlighter assembly. The refill typically includes a pen tube for holding ink, a sponge inside the pen tube for absorbing ink, and a writing tip at the end of the pen tube that abuts against the sponge for drawing out ink. In this connection structure, there is a gap between the writing tip and the end of the pen tube. When the refill is exposed to air for a period of time, the ink in the sponge easily evaporates into the air, causing the ink to dry and resulting in poor writing performance. Utility Model Content
[0004] In order to improve the sealing of the highlighter refill, this application provides a color highlighter that prevents ink leakage.
[0005] This application provides a leak-proof colored highlighter, which adopts the following technical solution:
[0006] The pen includes a pen body, a removable pen core installed within the pen body, and a removable pen cap fitted onto the end of the pen body. The pen body includes a pen tip end and a pen tail end. An installation gap is provided within the pen body for placing the pen core. The pen core includes a pen tube portion for placing ink and an ink-absorbing sponge, a pen head connected to the sponge and absorbing ink, and a sealing end portion provided at the end of the pen tube portion for the pen head to pass through. The sealing end portion is used to seal the gap between the pen head and the pen tube portion.
[0007] By adopting the above technical solution, when using this colored highlighter, the pen refill is installed in the installation gap inside the pen body, so that the pen tip of the pen refill protrudes from the pen tip end of the pen body. The pen cap is placed on the pen body and used to cover the pen tip, thereby sealing the pen tip through the pen cap, reducing the pen tip's exposure to air and causing the ink to dry out. The gap between the pen tip of the pen refill and the pen tube is sealed through the sealing end, thereby reducing ink leakage from the pen tube and extending the service life of the colored highlighter.
[0008] Optionally, the sealing end includes a snap-fit portion for snapping into the end of the pen tube portion and a limiting portion abutting against the edge of the end of the pen tube portion, and the sealing end is provided with a mounting through hole for the pen head to pass through.
[0009] By adopting the above technical solution, when assembling the pen refill, the snap-fit part of the sealing end is snapped onto the end of the pen tube, and the limiting part of the sealing end abuts against the edge of the end of the pen tube, so that the pen tip can pass through the mounting through hole of the sealing end, thereby achieving a better sealing effect between the pen tip and the pen tube through the sealing end.
[0010] Optionally, the end of the snap-fit portion away from the limiting portion is provided with a guide cone surface.
[0011] By adopting the above technical solution, when installing the sealing end, the snap-fit part of the sealing end is snapped onto the end of the pen tube part, and the guide cone surface can guide the installation of the limiting part of the sealing end, thereby facilitating the snap-fit of the limiting part.
[0012] Optionally, the pen cap has a fixing groove for the pen tip to be inserted into, and the pen cap has a limiting protrusion for the pen tip to be sealed and inserted into the fixing groove. The limiting protrusion has a limiting groove for the pen tip to be inserted into, and the periphery of the pen tip abuts against the groove wall of the limiting groove.
[0013] By adopting the above technical solution, when the pen cap is placed on the pen tip end of the pen body, the pen tip of the pen body is engaged in the fixing groove of the pen cap, and at the same time, the pen tip is engaged in the limiting groove of the limiting protrusion of the pen cap, so that the periphery of the pen tip abuts against the groove wall of the limiting groove, thereby achieving a better seal for the pen tip.
[0014] Optionally, the pen cap is provided with a sealing gasket on the groove wall of the fixing groove for abutting against the outer peripheral wall of the pen barrel.
[0015] By adopting the above technical solution, when the pen cap is placed on the end of the pen body, the sealing gasket on the fixing groove wall of the pen cap abuts against the outer peripheral wall of the pen body, thereby sealing the gap between the pen cap and the pen body, which can further reduce the volatilization of the pen tip.
[0016] Optionally, the pen refill body is provided with a tail seal near the end of the pen tube for sealing the end of the pen tube.
[0017] By adopting the above technical solution, a tail seal is also provided near the end of the pen. The tail seal can seal the end of the pen refill, reducing the leakage of ink from the end of the pen tube and thus further improving the sealing performance of the pen refill.
[0018] Optionally, the tail seal includes a plug that engages with the end of the pen tube portion away from the pen head and a positioning portion that abuts against the edge of the tail end of the pen tube portion.
[0019] By adopting the above technical solution, when installing the tail seal, the plug head is snapped into the end of the pen tube that is away from the pen head, so that the positioning part abuts against the edge of the tail end of the pen tube, thereby sealing the tail end of the pen tube through the tail seal.
[0020] In summary, this application includes at least one of the following beneficial technical effects:
[0021] 1. This application includes a pen body, a pen core, and a pen cap. The pen core includes a pen barrel, a pen head, and a sealing end. The gap between the pen head and the pen barrel of the pen core is sealed by the sealing end, thereby reducing ink leakage from the pen barrel.
[0022] 2. The sealing end of this application includes a snap-fit portion and a limiting portion. The snap-fit portion of the sealing end is snapped onto the end of the pen tube portion, and the limiting portion of the sealing end abuts against the edge of the end of the pen tube portion, thereby achieving a better sealing effect between the pen head and the pen tube portion through the sealing end.
[0023] 3. The pen refill body of this application is provided with a tail seal for sealing the end of the pen tube, thereby sealing the tail end of the pen refill body and reducing leakage of ink and other substances from the tail end of the pen tube. Attached Figure Description
[0024] Figure 1 This is a schematic cross-sectional view of an ink-leak-proof colored highlighter according to an embodiment of this application.
[0025] Figure 2 yes Figure 1 Enlarged view at point A.
[0026] Figure 3 yes Figure 1 Enlarged view at point B.
[0027] Explanation of reference numerals in the attached drawings: 1. Pen body; 11. Pen tip end; 12. Pen tail end; 13. Installation gap; 2. Pen core; 21. Pen tube; 22. Pen head; 23. Sealing end; 231. Snap-fit part; 232. Limiting part; 233. Mounting through hole; 234. Guide cone surface; 3. Pen cap; 31. Fixing groove; 32. Limiting protrusion; 33. Limiting groove; 34. Sealing gasket; 4. Tail seal; 41. Plug head; 42. Positioning part. Detailed Implementation
[0028] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0029] This application discloses a leak-proof colored highlighter. See also... Figure 1 The leak-proof colored highlighter includes a pen body 1, a pen core 2 that is detachably installed inside the pen body 1, and a pen cap 3 that is detachably fitted onto the end of the pen body 1.
[0030] See Figure 1 The pen body 1 includes a pen tip end 11 and a pen tail end 12. A pen cap 3 is fitted onto the pen tip end 11 of the pen body 1. The pen body 1 has an installation gap 13 for placing the pen refill 2. When using this colored highlighter, the pen refill 2 is installed in the installation gap 13 of the pen body 1, and the pen cap 3 is fitted onto the pen tip end 11 of the pen body, thus providing a good seal for the pen refill. The pen refill 2 includes a pen tube portion 21 for storing ink and an ink-absorbing sponge, and a pen head 22 connected to the sponge and absorbing ink. When using this colored highlighter, the pen refill 2 is installed in the installation gap 13 within the pen body 1, so that the pen head 22 of the pen refill 2 protrudes from the pen tip end 11 of the pen body 1. The pen cap 3 is fitted onto the pen body 1 to cover the pen head 22, thereby sealing the pen head 22 and reducing the pen head 22's exposure to air, which could cause the ink to dry out.
[0031] See Figure 2The pen cap 3 has a fixing groove 31 for the pen tip 22 to be inserted. Within the fixing groove 31, the pen cap 3 has a limiting protrusion 32 for the pen tip 22 to be sealed and inserted. The limiting protrusion 32 has a limiting groove 33 for the pen tip 22 to be inserted, and the periphery of the pen tip 22 abuts against the groove wall of the limiting groove 33. In this embodiment, the limiting protrusion 32 is an annular protrusion arranged within the fixing groove 31, and is integrally formed with the pen cap 3. When the pen cap 3 is placed on the pen tip end 11 of the pen body 1, the pen tip 22 of the pen body 1 is engaged in the fixing groove 31 of the pen cap 3, and simultaneously engaged in the limiting groove 33 of the limiting protrusion 32 of the pen cap 3, thereby abutting against the groove wall of the limiting groove 33, thus providing a good seal for the pen tip 22.
[0032] See Figure 2 The pen cap 3 has a sealing washer 34 on the groove wall of the fixing groove 31 for abutting against the outer peripheral wall of the pen body 1. In this embodiment, the sealing washer 34 is detachably installed on the groove wall of the fixing groove 31 of the pen cap 3. When the pen cap 3 is closed on the end of the pen body 1, the sealing washer 34 on the groove wall of the fixing groove 31 of the pen cap 3 abuts against the outer peripheral wall of the pen body 1, thereby sealing the gap between the pen cap 3 and the pen body 1, which can further reduce the volatilization of the pen tip 22.
[0033] See Figure 2 The pen refill 2 also includes a sealing end 23 located at the end of the pen tube 21 for the pen head 22 to pass through. The sealing end 23 is used to seal the gap between the pen head 22 and the pen tube 21. The gap between the pen head 22 and the pen tube 21 of the pen refill 2 is sealed by the sealing end 23, thereby reducing ink leakage from the pen tube 21 and extending the life of the colored highlighter.
[0034] See Figure 2 The sealing end 23 includes a snap-fit portion 231 for snapping into the end of the pen tube portion 21 and a limiting portion 232 abutting against the edge of the end of the pen tube portion 21. The sealing end 23 has a mounting through hole 233 for the pen head 22 to pass through. In this embodiment, the snap-fit portion 231 and the limiting portion 232 are integrally formed, and the mounting through hole 233 is slightly smaller than the pen head 22, allowing the pen head 22 to pass through the mounting through hole 233 with an interference fit. When assembling the pen refill 2, the snap-fit portion 231 of the sealing end 23 is snapped into the end of the pen tube portion 21, and the limiting portion 232 of the sealing end 23 abuts against the edge of the end of the pen tube portion 21, allowing the pen head 22 to pass through the mounting through hole 233 of the sealing end 23. This provides a good sealing effect between the pen head 22 and the pen tube portion 21.
[0035] See Figure 2 The end of the snap-fit portion 231 away from the limiting portion 232 is provided with a guide cone surface 234. When installing the sealing end 23, the snap-fit portion 231 of the sealing end 23 is snapped onto the end of the pen tube portion 21. The guide cone surface 234 can guide the installation of the limiting portion 232 of the sealing end 23, thereby facilitating the snap-fit of the limiting portion 232.
[0036] See Figure 3 The pen refill 2 is provided with a tail seal 4 near the end 12 of the pen tube for sealing the end of the pen tube 21. The tail seal 4 can seal the end of the pen refill 2, which can reduce the leakage of ink and other substances from the end of the pen tube 21, thereby further improving the sealing performance of the pen refill 2.
[0037] See Figure 3 The tail seal 4 includes a plug 41 that engages with the end of the pen tube 21 away from the pen head 22, and a positioning part 42 that abuts against the edge of the tail end of the pen tube 21. In this embodiment, the plug 41 and the positioning part 42 are integrally formed. When installing the tail seal, the plug 41 is engaged with the end of the pen tube 21 away from the pen head 22, so that the positioning part 42 abuts against the edge of the tail end of the pen tube 21, thereby sealing the tail end of the pen tube 21 through the tail seal 4.
[0038] The implementation principle of the ink-leakage-proof colored highlighter in this application embodiment is as follows:
[0039] When using this colored highlighter, the pen refill 2 is installed in the installation gap 13 inside the pen body 1, so that the pen tip 22 of the pen refill 2 protrudes from the pen tip end 11 of the pen body 1. The pen tip end 11 of the pen refill 2 is sealed by the sealing end 23, and the tail end of the pen refill 2 is sealed by the tail seal 4. The pen cap 3 is then put on, which can seal and cover the pen tip 22 of the pen refill 2.
[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A leak-proof colored highlighter, characterized in that, The pen body includes a pen barrel (1), a pen core (2) detachably installed in the pen barrel (1), and a pen cap (3) detachably fitted onto the end of the pen barrel (1). The pen barrel (1) includes a pen tip end (11) and a pen tail end (12). The pen barrel (1) has an installation gap (13) for placing the pen core (2). The pen core (2) includes a pen tube (21) for placing ink and an ink-absorbing sponge, a pen head (22) connected to the sponge and absorbing ink, and a sealing end (23) provided at the end of the pen tube (21) for the pen head (22) to pass through. The sealing end (23) is used to seal the gap between the pen head (22) and the pen tube (21).
2. The ink-leak-proof colored highlighter according to claim 1, characterized in that, The sealing end (23) includes a snap-fit portion (231) for snapping into the end of the pen tube portion (21) and a limiting portion (232) abutting against the edge of the end of the pen tube portion (21). The sealing end (23) is provided with a mounting through hole (233) for the pen head (22) to pass through.
3. A leak-proof colored highlighter according to claim 2, characterized in that, The end of the snap-fit portion (231) away from the limiting portion (232) is provided with a guide cone surface (234).
4. A leak-proof colored highlighter according to claim 1, characterized in that, The pen cap (3) has a fixing groove (31) for the pen head (22) to be inserted into. The pen cap (3) has a limiting protrusion (32) for the pen head (22) to be inserted into the fixing groove (31). The limiting protrusion (32) has a limiting groove (33) for the pen head (22) to be inserted into. The periphery of the pen head (22) abuts against the groove wall of the limiting groove (33).
5. A leak-proof colored highlighter according to claim 4, characterized in that, The pen cap (3) is provided with a sealing gasket (34) on the groove wall of the fixing groove (31) for abutting against the outer peripheral wall of the pen body (1).
6. A leak-proof colored highlighter according to claim 1, characterized in that, The pen refill body (2) is provided with a tail seal (4) near the end of the pen (12) for sealing the end of the pen tube (21).
7. A leak-proof colored highlighter according to claim 6, characterized in that, The tail seal (4) includes a plug (41) that snaps into the end of the pen tube (21) away from the pen head (22) and a positioning part (42) that abuts against the edge of the tail end of the pen tube (21).