A plug-in expansion ink bottle

Abstract

The invention provides an ink bottle for inserting and expanding, which includes a bottle body, an inner tank, a needle seat and a liquid injection tube; the bottle body includes a bottleneck with a hollow cylindrical body; the inner tank is arranged in the bottle body, and the bottom surface of the inner tank is elastic surface; the lower end of the hollow cylinder extends above the interior of the inner tank; the needle holder is placed into the inner tank through the hollow cylinder and can move up and down in the hollow cylinder; the needle holder includes a The support seat and the casing seat located at its lower part and fixedly socketed with the liquid injection tube; the upper end of the liquid injection tube is exposed outside the support seat and communicates with the outside world, and the lower end of the liquid injection tube extends to the inner bottom surface of the inner tank and is connected with the inner tank. The interior of the tube is connected; the support base is fixed with a first seal that is sealed with the pen body; the inner wall of the hollow cylinder is fixed with a second seal that is tightly socketed with the sleeve seat; the needle seat is at least provided with There is a ventilation channel. By adopting the invention, it is possible to realize the ink return of the ink pen tank before ink filling, and prevent the ink from overflowing.

Description

technical field [0001] The invention relates to stationery, in particular to an ink bottle for plugging and expanding. Background technique [0002] At present, the fountain pen commonly used by people is an ink-absorbing fountain pen. After this fountain pen is inked, the nib part must be stained with ink, which needs to be wiped, which makes people feel inconvenient. In addition, when the ink in the ink bottle is full, the suction Ink can also easily stain the barrel. [0003] In addition, there is also a kind of ink-filling type ink bottle on the market, which is used to inject ink into the fountain pen liquid storage tube. After repeated tests by the applicant, the following problems still exist: [0004] (1) Ink may overflow from the needle tube when the bottle cap is removed when the external temperature is high, which is likely to cause waste and pollution; [0005] (2) During transportation, when the ink filling bottle is turned upside down or when the ink filling ...

AI Technical Summary

Problems solved by technology

[0004] (1) Ink may overflow from the needle tube when the bottle cap is removed when the external temperature is high, which is likely to cause waste and pollution;

[0005] (2) During transportation, when the ink filling bottle is turned upside down or when the ink filling bottle is subjected to strong vibration, the ink in the bottle will overflow;

[0006] (3) When the ink pen is not used for a long time, due to the evaporation of part of the ink at the end of the pen, this will cause the ink concentration in the pen tank to be too high, which will easily cause blockage of the ink path and poor writing

However, the existing ink filling bottle cannot realize the above-mentioned function of returning ink and changing ink;

[0007] (4) If there is a lot of ink stored in the pen tank itself, when refilling ink, it will cause part of the ink to overflow, resulting in waste and pollution

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