Novel mechanical pencil

Abstract

The invention relates to a writing or drawing appliance, in particular to a novel mechanical pencil. The novel mechanical pencil comprises a pencil holder and a pencil refill inside the pencil holder, wherein the pencil refill is contacted with the inner cavity wall of the pencil holder; the pencil holder is provided with at least one longitudinal groove which is communicated with the pencil refill; the transverse biggest width of a part of the pencil refill, communicated with the groove, is smaller than the width of the widest part of the cross section of the pencil refill; the pencil holder is provided with a ratchet wheel; the ratchet wheel is connected with a transmission line; the other end of the transmission line is connected with the tail end of the pencil refill through the groove; the ratchet wheel drives the pencil refill to move through the transmission line; the pencil holder is also provided with a pawl; and the pawl is meshed with the ratchet wheel. The novel mechanical pencil adopting the scheme is easy to manufacture, low in cost and especially suitable for installing a thick pencil refill.

Description

Technical field: [0001] The invention relates to a writing or drawing utensil, in particular to a novel mechanical pencil. Background technique: [0002] At present, there are many pencils on the market, including mechanical pencils and wooden pencils. Although mechanical pencils are easy to operate, their structure is complex and easy to damage. Although wooden pencils have a simple structure and are not easy to damage, they need to be cut frequently when used, which is time-consuming and laborious. , which is the shortcoming of the prior art. Invention content: [0003] The purpose of the present invention is to provide a technical solution for a novel mechanical pencil aimed at the deficiencies in the prior art. The pencil of the solution is simple in structure, easy to operate, easy to make, and low in cost, and is especially suitable for installing and using thick pencils. core. [0004] This program is realized through the following technical measures: a new type o...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many pencils on the market, including mechanical pencils and wooden pencils. Although mechanical pencils are easy to operate, their structure is complex and easy to damage. Although wooden pencils have a simple structure and are not easy to damage, they need to be cut frequently when used, which is time-consuming and laborious. , which is the shortcoming of existing technology

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