Portable pencil

By using a threaded connection between the rotating handle and the lifting cylinder, along with a lead feeding mechanism, the portable pencil tip can be flexibly adjusted, solving the problems of easily damaged tips and personalized needs, thus improving the user experience.

CN224375195UActive Publication Date: 2026-06-19ZHEJIANG QINGYUAN XIANFENG STATIONERY CO LTD
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Patent Information

Application Number
CN202521451151.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-11
Publication Date
2026-06-19
Estimated Expiration
2035-07-11

AI Technical Summary

Technical Problem

Existing mechanical pencils have fixed, non-extendable tips, which are easily damaged and cannot meet the personalized needs of different users for tip length. They cannot simultaneously accommodate scenarios where long tips allow for smooth writing and short tips allow for precise drawing.

Method used

It adopts a threaded connection structure between the rotating handle and the lifting cylinder, combined with the design of sliding bar and locking clamp. The flexible extension and retraction adjustment of the pen tip can be achieved by rotating the rotating handle, and it is equipped with a lead feeding mechanism to ensure reliable lead feeding.

Benefits of technology

It effectively prevents the pen tip from being damaged during transport, meets the personalized needs of different users for pen tip length, and improves the comfort and applicability of use.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model belongs to the technical field of stationery, and particularly relates to a portable pencil which comprises a pencil holder, a rotating handle is arranged on the pencil holder in a rotating mode, and a pencil point is connected to the rotating handle in a threaded mode. The lifting cylinder is arranged in the pen holder in a sliding manner, the lifting cylinder is in threaded connection with the rotating handle, and a pen point is arranged at the lower end of the lifting cylinder; the core feeding mechanism is arranged in the lifting cylinder; according to the portable pencil, through the threaded connection structure of the rotating handle and the threaded part of the lifting cylinder and the sliding limiting design of the sliding strip on the lifting cylinder in the pencil holder, the pencil is convenient to use, and the pencil is convenient to use. During use, the nib can be flexibly adjusted to extend out of or retract into the nib only by rotating the rotating handle. When the pencil is not used, the pencil point can be retracted into the pencil point, so that the pencil point is effectively prevented from being collided and damaged; in the writing process, the pen point can be adjusted to a proper length according to personal use habits.
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