Refill type writing pen

Abstract

The invention relates to a refill type writing pen, comprising a refill, a pen tube and a refill base which is arranged in the pen tube and is used for inserting and positioning the refill. A section of frustum is formed at the periphery of the refill base, and the section of one side of the frustum, which is close to the head part of the pen tube, is greater than the section of one side of the frustum, which is close to the tail part of the pen tube. The surface of the frustum supports against a press button with one side extending out of the inner wall of the pen tube, and the press button is positioned at a finger holding part of the pen tube. The refill type writing pen also comprises a spring which is sleeved on the refill, one end of the spring supports against a boss protruding from the inner wall of the pen tube, and the other end of the spring supports against the refill base. The operation of extending the head part of the refill out of the pen tube and retracting back is controlled by pressing the press button simultaneously when fingers hold the pen tube during writing, and whether the head part of the refill exposes or not is flexibly controlled according to the writing requirement, therefore, the defects that the head part of the refill is easy to be damaged when the traditional refill type writing pen is used are overcome.

Description

technical field [0001] The invention relates to a stationery product, in particular to a pen core type writing pen structure. Background technique [0002] For refill writing pens such as mechanical pencils and ballpoint pens, when not in use, the exposed nib will be damaged when it is hit improperly. The core will be scrapped; so that a certain amount of waste is caused. [0003] Although many writing pens are designed with additional pen caps to protect the pen tip in this situation, it is obvious that the extra accessory such as the pen cap is often lost during use, and its protection for the pen tip is essentially very small. Difficult to play a corresponding role. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a writing pen structure that can effectively protect the pen core in the non-use state without increasing the cumbersomeness of use and without changing the use habit. [0005] The technical proble...

AI Technical Summary

Problems solved by technology

[0002] For refill writing pens such as mechanical pencils and ballpoint pens, when not in use, the exposed nib will be damaged when it is hit improperly. The core will be scrapped; so that a certain amount of waste is caused

[0003] Although many writing pens are designed with additional pen caps to protect the pen tip in this situation, it is obvious that the extra accessory such as the pen cap is often lost during use, and its protection for the pen tip is essentially very small. Difficult to play a corresponding role

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