Self-locking rotating anti-drop pen

Abstract

The invention relates to a pen, in particular to a self-locking rotating anti-drop pen. The self-locking rotating anti-drop pen comprises a first rod body, a second rod barrel, a refill, a sealing cover and a returning spring; both the refill and the returning spring are connected to the interior of the first rod body in a sleeving manner; the first rod body and the refill are connected to one endof the second rod barrel in the sleeving manner; the sealing cover is mounted in the second end of the second rod barrel; the self-locking rotating anti-drop pen is characterized in that the first rod body consists of a pen holding part and a sleeving part; an extending sleeving rod is arranged on the pen holding part; a sleeving matching groove is formed in the sleeving part; the pen holding part and the sleeving part are clamped into the sleeving matching groove to realize clamping through the extending sleeving rod so as to form the first rod body; one or more special-shaped combination grooves are formed in the sleeving part; the special-shaped combination grooves are formed by arranging an mounting cutting-in groove, a cross groove and a matching groove in sequence; according to theself-locking rotating anti-drop pen, convenient operation is realized by adopting a simple design, so that the refill is exposed and retracted quickly; the self-locking rotating anti-drop pen has thefunctions of anti-dropping, preventing writing too hard, and recovering automatically after avoiding impact force and absorbing aftershock; and the structure can also be self-locked so as to facilitate carrying.

Description

technical field [0001] The invention relates to a pen, in particular to a self-locking and rotating anti-falling pen. Background technique [0002] The two most important points of the pen are: 1. the refill; 2. the structural design of the outer pen shell; for the above two points, human beings have been making improvements and researches. The existing pen shell design technology is very mature, but the operation The method is single and the operation steps are numerous. Nowadays, ergonomics is emphasized. For the ergonomics of pens, most of them only improve the ergonomics of the grip when writing; however, the improvement of the most fundamental operation method is ignored. ; [0003] In terms of anti-dropping, conventional springs are used to resist the end of the refill, so that it has the effect of anti-dropping. If the spring force is too small, the refill will be erratic and float up and down when writing. This is very unfavorable for writing, and if the spring for...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing operation mode is single and the structure cannot be self-locking, and to provide a self-locking rotating anti-drop pen, which can quickly and normally retract the pen core, so that it can quickly expose and retract the pen core, and In use state, if it falls to the ground, it will trigger the internal anti-drop structure, so that the refill will automatically release pressure and rebound, avoiding the real impact force from fully acting on the refill, so as to avoid damage to the refill and nib. After the impact force, it can also automatically return to the use state; and it also has the problem of preventing excessive writing

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