Anti-shaking mechanism for refill
By employing a cylindrical and conical hole structure in the pen tip anti-shake mechanism, the problems of pen tip wobbling and ink contamination are solved, achieving stable writing and clean retraction of the pen tip.
Patent Information
- Application Number
- CN202520084147.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-14
AI Technical Summary
The large gap between the pen tip and the through hole in existing push-button pens causes wobbling, affecting writing stability. Furthermore, the pen tip tends to stick to the inner wall of the through hole when it retracts, causing contamination.
Design a pen tip anti-shake mechanism, which adopts a cylindrical hole and a conical hole structure. The positioning part of the pen tip is in close contact with the cylindrical hole to prevent shaking. When retracted, the positioning part retracts into the conical hole to prevent ink from adhering.
This design prevents the pen tip from shaking during writing, avoids ink from sticking to the inner wall of the through hole, improves writing stability, and prevents pen casing contamination.
Smart Images
Figure CN223574087U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a pen, in particular to a pen core anti-shaking mechanism. BACKGROUND
[0002] The press pen in ordinary times, the pen core into the pen shell, protect the pen head of the front end of the pen core. When using, through the press, the pen core forward, the pen head through the hole of the head of the pen shell out of the pen shell, so as to write.
[0003] The pen head and the hole of the press pen are generally with a large gap, which leads to the pen head to shake when writing, affecting the stability of writing. And the pen head retraction process, because there is no limit, leading to the ink on the pen head easy to stick to the inner wall of the hole, leading to the pen shell is contaminated, therefore, it is necessary to improve. SUMMARY
[0004] In view of the deficiencies of the prior art, the present application provides a pen core anti-shaking mechanism, the pen head does not shake when writing, and the pen head does not stick ink to the inner wall of the hole when retracting.
[0005] The technical scheme adopted by the present application to solve its technical problems is: a pen core anti-shaking mechanism, comprising a shell and a pen core arranged in the shell, the front end of the shell is provided with a hole, the front end of the pen core is provided with a pen head, the front end of the shell is provided with a guide sleeve, the hole is arranged in the guide sleeve, the hole is divided into a cylindrical hole at the front end and a conical hole at the rear, the pen head comprises a cylindrical positioning part, the front end of the positioning part is a writing part, when using, the pen head passes through the hole forward, the positioning part is in close contact with the cylindrical hole, the writing part passes out of the cylindrical hole, because of the close contact between the positioning part and the cylindrical hole, the pen head does not shake when writing. When not in use, the pen head is retracted into the shell, the positioning part is retracted into the conical hole. The positioning part also plays a role in preventing the writing part from shaking during the retraction of the pen head into the shell, avoiding the ink on the writing part from sticking to the inner wall of the hole. The positioning part is retracted into the conical hole, mainly to prevent the pen head from being stuck when pushing forward.
[0006] In the above technical scheme, preferably, the length of the cylindrical hole is greater than or equal to 4mm. The length of the cylindrical hole is too short to fix the pen core and prevent shaking.
[0007] In the above technical scheme, preferably, the diameter of the writing part is smaller than the diameter of the positioning part. In this way, the writing part can have a certain distance from the side wall of the cylindrical hole when passing through the cylindrical hole, further avoiding the ink from sticking to the inner wall of the hole.
[0008] In the above technical solution, preferably, when not in use, the writing part is located in the cylindrical hole.
[0009] In the above technical solution, preferably, the refill comprises a sleeve, the sleeve is provided with ink, and the tail end of the pen tip is inserted into the sleeve.
[0010] The beneficial effects of the present application are: when not in use, the pen tip is retracted into the shell, and the positioning part is retracted into the conical hole. During the retraction of the pen tip into the shell, the positioning part also plays a role in preventing the writing part from shaking, thereby avoiding the ink on the writing part from sticking to the inner wall of the through hole. The positioning part is retracted into the conical hole, mainly to prevent the pen tip from being stuck when pushed forward. BRIEF DESCRIPTION OF DRAWINGS
[0011] Fig. 1 is a schematic diagram when the present application is in use.
[0012] Fig. 2 is a schematic diagram when the present application is not in use. DETAILED DESCRIPTION
[0013] The present application will be further described in detail below in combination with the drawings and specific embodiments:
[0014] Referring to Figs. 1-2 A refill anti-shaking mechanism, comprising a shell 1 and a refill 2 arranged in the shell 1, a through hole 31 is arranged at the front end of the shell 1, a pen tip 21 is arranged at the front end of the refill 2, a guide sleeve 3 is arranged at the front end of the shell 1, the through hole 31 is arranged in the guide sleeve 3, and the through hole 31 is divided into a cylindrical hole 312 at the front end and a conical hole 311 at the rear. The length of the cylindrical hole 312 is greater than or equal to 4 mm. If the length of the cylindrical hole is too short, it cannot play a role in fixing the refill and preventing it from shaking.
[0015] The pen tip 21 comprises a cylindrical positioning part 211, and the front end of the positioning part 211 is a writing part 212.
[0016] The diameter of the writing part 212 is smaller than the diameter of the positioning part 211. When not in use, the writing part is located in the cylindrical hole. In this way, when the writing part passes through the cylindrical hole, it is at a certain distance from the side wall of the cylindrical hole, further avoiding the ink from sticking to the inner wall of the through hole.
[0017] The refill 2 comprises a sleeve 22, the sleeve 22 is provided with ink, and the tail end of the pen tip 21 is inserted into the sleeve 22.
[0018] In use, the pen tip is pushed forward through the through hole, the positioning part is in close contact with the cylindrical hole, and the writing part is out of the cylindrical hole. Due to the close contact between the positioning part and the cylindrical hole, the pen tip will not shake when writing. When not in use, the pen tip is retracted into the shell, and the positioning part is retracted into the conical hole. During the process of retracting the pen shell, the positioning part also plays a role in preventing the writing part from shaking, avoiding the ink on the writing part from sticking to the inner wall of the through hole. The positioning part is retracted into the conical hole, mainly to prevent the pen tip from being stuck when pushed forward.
Claims
1. A refill anti-shaking mechanism, comprising a shell and a refill arranged in the shell, a through hole is arranged at the front end of the shell, and a pen head is arranged at the front end of the refill, characterized in that: The front end of the shell is provided with a guide sleeve, the through hole is arranged in the guide sleeve, the through hole is divided into a cylindrical hole at the front end and a conical hole at the rear, the pen head comprises a cylindrical positioning part, the front end of the positioning part is a writing part, in use, the pen head passes through the through hole forwardly, the positioning part is in close contact with the cylindrical hole, and the writing part passes out of the cylindrical hole, in non-use, the pen head is retracted into the shell, and the positioning part retreats into the conical hole.
2. The wobble-preventing mechanism for a refill according to claim 1, characterized in that: The length of the cylindrical hole is greater than or equal to 4 mm.
3. The wobble-preventing mechanism for a refill according to claim 1, characterized in that: The diameter of the writing part is smaller than the diameter of the positioning part.
4. The shakiness preventing mechanism of the refill according to claim 3, characterized in that: In non-use, the writing part is located in the cylindrical hole.
5. The shakiness preventing mechanism of a cartridge according to claim 1, characterized by: The pen core comprises a sleeve, ink is arranged in the sleeve, and the rear end of the pen head is inserted into the sleeve.