A refillable gel pen

Abstract

The invention discloses a gel pen allowing ink to be injected repeatedly. The gel pen comprises a pen shell, a pen point and a pen cap. The pen point is connected with the pen shell. The pen cap is installed on the pen point. The gel pen is characterized by further comprising a nib, a one-way ink valve, an ink storage device and an ink extraction device, wherein the nib, the one-way ink valve, the ink storage device and the ink extraction device are sequentially connected and installed in the pen point and the pen shell, the one-way ink valve is formed by overlapping a leaking ink disc and a sealed ink disc, and an ink leaking hole is formed in the leaking ink disc. According to the gel pen, the advantages that a gel pen is comfortable in writing and convenient to carry and the advantages that ink can be repeatedly absorbed by a pen are combined, when the ink is used up, the ink can be extracted by placing the pen point in the ink and pulling an ink extraction control line; ink injection operation is simple, a refill can be reused multiple times, refill waste and environment pollution caused by refill waste are reduced; the length of the gel pen is properly reduced, the ink storage space of the ink storage device is increased, the size of the gel pen is more moderate, and the gel pen is more comfortable in writing, convenient to carry and low in price.

Description

technical field [0001] The invention relates to a gel pen, in particular to a gel pen with repeated ink filling. Background technique [0002] A ball-point pen with a writing medium whose viscosity is between water and oil is called a gel pen; a gel pen is a popular writing tool at present, and a gel pen has the advantages of both a fountain pen and a ball-point pen. Low, so it is smoother than ordinary oil-based ballpoint pens, and it is an upgraded product of oil-based ballpoint pens. [0003] The structure of a gel pen is composed of a pen holder, a refill, and a cap. In order to ensure that the ink in the refill can come out of the pen tip, the design of the refill of the gel pen relies on the piston to push the ink. Because the solid piston is not easy to control in industrial production, it can also achieve sealing. It is very difficult to achieve a very smooth effect. A slight error in size may cause the piston to be stuck or fall off (the pen does not emit water), r...

AI Technical Summary

Problems solved by technology

[0003]The structure of the gel pen is composed of the pen holder, the pen core and the pen cap. In order to ensure that the ink in the pen core can come out of the pen tip, the design of the gel pen core relies on the piston Pushing the ink, because the solid piston is not easy to control in the industrial production, it is difficult to achieve the sealing and very smooth effect at the same time, a little error in the size may cause the piston to be stuck or fall off (the pen does not come out of water), the rough will be stuck, and the smooth will be As a result, the sealing effect is not good (the pressure cannot be formed to squeeze the ink). Therefore, the pen core structure design of the gel pen uses liquid silicone oil (colloidal liquid on the ink) as the piston, and replaces the new pen core after the pen core is used up. , Most of the used refills are discarded, and the discarded refills will cause environmental pollution and material waste

[0004] In the prior art, the reuse of the pen core is realized by the pen core ink injector, and the pen core ink injector refills the recovered pen core, but its There are: expensive, bulky, high power consumption, inconvenient to use, and the refill can only be refilled once and cannot be reused. It can be seen that it has not fundamentally solved the problem of reusing the refill.

[0005]Another reusable neutral refill application number 201010172303.3 (authorized announcement number CN 101830136 B), it still uses the "patch" piston type Sealed compression design, and the piston can only use liquid silicone oil, so this design is not popular, and even can't work normally

[0006]Therefore, there is no gel pen in the prior art that can realize repeated ink filling and normal writing, and the ink filling operation is simple to reduce waste

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