A writing pen with automatically retractable refill

Abstract

The invention provides a writing pen with a refill capable of retracting automatically. The writing pen comprises a pen barrel and the refill arranged in the pen barrel. A circular-cone-shaped conic sleeve is arranged at the position, opposite to a holding part of the pen barrel, of the refill. Mounting holes are formed in the holding part of the pen barrel. A pressing body made of an elastic material is arranged in the mounting holes. The tail end of the pressing body is connected with the pen barrel. The front end of the pressing body is in contact with the conic sleeve. When the pressing body is extruded, the front end of the pressing body can extrude the conic sleeve, and the conic sleeve can drive the refill to slide towards one side of a pen point. A first magnet and a second magnet which are opposite in polarity are fixed to the tail end of the pen barrel and the tail end of the refill correspondingly. The writing pen is simple in structure, reliable to use, low in manufacturing and using cost and capable of completely meeting the requirement of daily writing.

Description

technical field [0001] The invention relates to a writing tool, in particular to a writing pen with an automatically retractable core. Background technique [0002] The core of the existing ballpoint pen or gel pen structure is always in a fixed state during the writing process. When the ballpoint pen or gel pen accidentally drops, the tip part of the front end of the pen core is easy to be broken, causing the entire pen core to be damaged. Not available. In addition, most ballpoint pens or gel pens do not have a refill spring retraction structure. Generally, the cap needs to be capped after use. However, in many cases, the user will forget to put the cap back on, resulting in damage to the nib after the pen falls or pen back and forth. Rolling leads to misdrawing and miswriting, and long-term exposure of the pen tip of the gel pen will also lead to ink reduction and poor writing. There are also some ballpoint pens equipped with a spring retraction structure, but the refil...

AI Technical Summary

Problems solved by technology

[0002] The core of the existing ballpoint pen or gel pen structure is always in a fixed state during the writing process. When the ballpoint pen or gel pen accidentally drops, the tip part of the front end of the pen core is easy to be broken, causing the entire pen core to be damaged. Not available

In addition, most ballpoint pens or gel pens do not have a refill spring retraction structure. Generally, the cap needs to be capped after use. However, in many cases, the user will forget to put the cap back on, resulting in damage to the nib after the pen falls or pen back and forth. Rolling leads to misdrawing and miswriting, and after the tip of the gel pen is exposed for a long time, the ink will be reduced and the writing of the tip will not be fluent

There are also some ballpoint pens equipped with a spring retraction structure, but the refill can only be ejected or retracted after pressing the spring button. If the spring button is not pressed, the refill cannot be retracted, and the refill cannot be automatically retracted after use. and the user easily forgets to press the spring button to retract the refill after use, which will also lead to the above problems

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