Pen with replaceable ink bag

Abstract

The invention belongs to the technical field of stationery, and in particular relates to a pen with a replaceable ink bag. The pen includes a nib. One end is closed, the opening end of the ink bag is provided with an external thread, the rear end of the nib is provided with a connecting pipe, and the connecting pipe is threadedly connected with the ink bag, and the rear end of the nib is located in the connecting pipe and is provided with a leading part for extending into the opening end of the ink bag. When installing and replacing the ink bag in the present invention, it is only necessary to screw the ink bag on the connecting pipe of the nib, and during the screwing process, the conducting part will extend into the ink bag to seal the diaphragm of the ink in the film bag It is very convenient to use, and the ink bag is connected with the connecting pipe on the nib. The structure is simple, the parts are less worn, and the sealing effect is good. The ink bag can be replaced many times. The ink sac and the nib are sealed and connected to avoid ink leakage, and the use cost is low.

Description

technical field [0001] The invention belongs to the technical field of stationery, in particular to a fountain pen with a replaceable ink bag. Background technique [0002] Fountain pen is the writing tool that people generally use, was invented in the early 19th century. The nib is made of metal, and it is smooth and elastic when writing, which is quite smooth. The ink of the fountain pen is generally all rechargeable, and the ink bag is set in the pen holder, and the negative pressure environment is formed in the ink bag by suction or extrusion to suck the ink, but this pen will not be filled every time the ink bag is used up. After using the ink, you have to unscrew the pen barrel, suck the ink in the ink bottle again, screw on the pen barrel after absorbing the ink, and wipe the tip of the pen with a paper towel, which is cumbersome to operate. And because the amount of writing of the pen is limited, once the pen is out of ink, it cannot be used, and the ink needs to b...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a fountain pen with replaceable ink bag, aiming to solve the problem that the existing fountain pens have limited writing volume, need to frequently suck ink, and the operation of pumping ink is cumbersome, and sometimes even need to carry an ink bottle with them, so that pen users can some inconvenient technical issues

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