A neutral fountain pen with a self-retracting nib

Abstract

The invention relates to a gel fountain pen with a pen point capable of retracting back automatically. The gel fountain pen comprises a pen holder, a refill arranged in the pen holder and a rotary capspirally installed on the pen holder, and a gravity block is arranged in the pen holder and connected with the rotary cap through a first tension spring; the pen holder is provided with a rotating shaft which is arranged in the pen holder and is coincident with the pen holder in the length direction, the rotating shaft is provided with a cam groove spirally arranged along the axis of the rotatingshaft, the sliding block is provided with a cam push rod matched with the cam groove, and the cam push rod is arranged in the cam groove; a stopping flange is arranged on the refill, the rotating shaft is provided with a rotating stopping block corresponding to the stopping flange, one end of the rotating stopping block is connected with the rotating shaft, when the rotating stopping block rotates along with the rotating shaft, the other end of the rotating stopping block is in contact with and separates from the stopping flange, and stopping or stopping ending of the refill in the axial direction is achieved; and the rotary cap is provided with a pressing rod penetrating the rotary cap in a vertical sliding manner, the end, arranged in the pen holder, of the pressing rod is provided withan insertion hole matched with the refill, and the pressing rod slides on the rotary cap in the direction far away from the refill under the elastic action force.

Description

technical field [0001] The invention relates to a writing instrument, in particular to a neutral water pen with a pen point retracting automatically. Background technique [0002] In daily study, work and life, writing pens are often used for copying, notes, signatures, etc., especially in classrooms, examination rooms, etc. They all use ink-stained nibs for writing or painting, so once the nib is damaged, it will have different degrees of impact on normal study and work, and in some specific cases such as examinations, contract signing, etc. It will cause irreparable loss. [0003] Damage to the nib is usually caused by the accidental drop of the writing pen, which causes the nib to collide with the ground or hard objects. Since common writing pens do not have the function of nib protection, even writing pens with caps such as fountain pens and fountain pens can only The pen tip can only be protected when it is not in use, and the pen tip cannot be protected in a timely a...

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to make up for the technical deficiencies in the prior art, the present invention provides a neutral fountain pen with an automatic retractable nib to solve the problem that the existing writing pen cannot protect the nib in time when it accidentally falls

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