Mechanical gear pen

Abstract

The invention relates to a pen, in particular to a mechanical gear pen. The pen comprises an inner rod, an outer rod, a mechanical gear set, a pen clamp, a refill and a reset spring. One or more matched barbs are arranged on the pen clamp; the mechanical gear set comprises a movable wheel set, a shell, a movable displacement piece, a refill limiting base and a locking piece; the movable displacement piece is divided into a movable ring and a displacement piece, and one or more matching teeth are further arranged on the displacement piece; the inner diameter of the movable ring is greater thanthe outer diameter of the refill; the outer rod is further provided with a matched open groove and a fixed straight groove; the shell is also provided with a gear open groove and a shell fixing raisedline; the movable wheel set is composed of one or more gears; the gears in the movable wheel set are meshed with each other; at least one gear in the movable wheel set is in gear fit with the matching teeth; the matching effect of at least one gear in the movable wheel set and the matching barbs is a one-way rotation or ratchet wheel structure; and the matching open groove and the gear open groove are the same in opening position, and the gears matched with the matching barbs penetrate through the matching open groove and the gear open groove and then are meshed with the matching barbs.

Description

technical field [0001] The invention relates to a pen, in particular to a mechanical gear pen. Background technique [0002] Today's market pens are nothing more than press pens, cap pens, rotating pens and magnetic pens, and they are all assembled or have no fun to assemble; now that we have entered the 21st century, the status quo is still the same, although people are technological However, the importance of the pen as a basic writing tool is still indispensable; and with the acceleration of the pace of life, people have also used the above-mentioned structural pens for decades, and the desire for new pens is still very strong. Urgent. [0003] Secondly, the above-mentioned several pens still have great structural defects, and the newly launched lifting pen, patent number: 2019106855133; just makes up for the convenience of the above-mentioned pens. At the same time, it also gives people more and better choices, and provides people with better and faster operation metho...

AI Technical Summary

Problems solved by technology

[0004] On the basis of the above-mentioned lifting pen, the space for DIY and assembly is small, and the extension distance of the pen core is fixed. Of course, the fixing of the extension distance of the pen core does not affect people's normal use; however, it can Freely control the retractable distance of the refill, which is a great breakthrough for some pen lovers;

[0005] Moreover, the above-mentioned pens have a relatively single core-retracting method, often only one; moreover, they cannot be structurally locked and are not easy to carry

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