Anti-oil-leakage gel pen refill

Abstract

The invention discloses an anti-oil-leakage gel pen refill which comprises an ink storage tube, the tail end of the ink storage tube is provided with an inner and outer attached interlayer type tail cover, the head end of the ink storage tube is provided with an inner and outer attached interlayer type connecting part, a pen point is arranged in the connecting part and comprises a metal head, and a ball is arranged on the inner wall of the tip end of the metal head. According to the gel pen refill, the tail cover and the connecting part when the interlayers are attached inside and outside are adopted, the opening positions of the two ends of the ink storage pipe can be sealed and protected in an inside and outside combined mode, the phenomenon that connecting gaps are generated at the opening positions of the two ends of the ink storage pipe is avoided as much as possible, and therefore ink in the ink storage pipe is prevented from leaking outwards; and the phenomenon of deterioration caused by long-time contact between the ink and air is avoided, so that the ink leakage prevention effect of the refill is greatly improved, and the service life of the refill is prolonged.

Description

technical field [0001] The invention relates to the technical field of gel pens, in particular to an oil-leakage-proof gel pen refill. Background technique [0002] Because of its smooth and uniform writing feel and long-term continuous writing ability, gel pens have replaced traditional ballpoint pens with poor handles and fountain pens that rely heavily on ink supply, and have become the most important writing tools for people to work and study. Gel pens are usually made of It is composed of refill, nib, pen holder and pen cap, and plays an important role in daily office and study. As the refill is a key part of ink storage and writing of gel pens, it needs to maintain good sealing to prevent Ink leakage occurs. [0003] Chinese patent notification number: CN208247795U discloses "a kind of oil-leakage-proof neutral gel pen refill", including nib ball, ball seat, ink brush, spring and rubber block, and described nib ball is positioned at the ball seat of nib tip, And prot...

AI Technical Summary

Problems solved by technology

[0004] The existing gel pen refills have deficiencies in the sealing measures at both ends of the ink storage tube, and it is impossible to perform an internal and external combined sealing effect on the connection positions of the two ends of the ink storage tube, so that after the gel pen is used for a long time , it is easy to leak oil at both ends of the ink storage tube, which reduces the use effect of the gel pen

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