Gel pen plastic tube refill convenient for clamping metal head of gel pen

Abstract

The invention discloses a gel pen plastic tube refill facilitating clamping of a gel pen metal head, and relates to the technical field of office appliances, the gel pen plastic tube refill comprises a plastic refill body, the top of the plastic refill body is movably connected with an insertion and extraction tube, the top of the insertion and extraction tube is fixedly connected with the metal pen head, and the top of the plastic refill body is provided with a replacement mechanism. And a liquid level prompting mechanism is arranged on the outer wall of the plastic refill body. Through the design of the two plastic pen refill bodies, pen ink of two different and common colors is added into the inner cavities of the two plastic pen refill bodies in advance, and the wedging groove connected to the idle plastic pen refill body is pressed downwards, so that the whole inserting rod is clamped in the inner cavity of the wedging groove; and on the contrary, the plastic refill body can be rapidly replaced, the problem that the gel pen is troublesome to replace frequently is solved, and the writing efficiency of a user is improved.

Description

technical field [0001] The invention relates to a gel pen plastic tube refill, relates to the technical field of office appliances, in particular to a gel pen plastic tube refill which is convenient for clamping the gel pen metal head. Background technique [0002] Gel pens have the advantages of both fountain pens and oil-based ballpoint pens. The writing feels comfortable, the viscosity of the ink is low, and an appropriate lubricant is added. The viscosity of the writing medium is between water and oil, so it is smoother than ordinary oil-based ballpoint pens. An upgraded product of the oil-based ballpoint pen, the gel pen refill is the main writing part installed inside the gel pen holder. There are following problems at prior art: [0003] 1. The existing gel pen refills do not have the function of quickly replacing the color. When using gel pens of different colors for writing, the gel pens need to be replaced frequently, which affects the user's writing efficiency. ...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a gel pen plastic tube refill which is convenient for clamping the metal head of the gel pen. One of the purposes is to have the function of quickly replacing the color, so as to solve the problem that frequent replacement of the gel pen will affect the user The problem of writing efficiency; another purpose is to solve the problem that if the pen and ink inside the gel pen refill is exhausted, it will bring great inconvenience to the user, so as to achieve the effect of prompting the pen and ink level in time

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