Pencil with moving pencil lead

Abstract

The invention relates to a pencil, in particular to a pencil with a moving pencil lead. The pencil is provided with a hollow pencil shaft and the pencil lead; the hollow pencil shaft is provided with a first section and a second section; the first section is sheathed in the second section; a reset spring is arranged between the first section and the second section; the inner wall of the first section is provided with chutes and a reset pressure spring; one end of the reset spring is adapted to the outer wall of the top part of the first section, and the other end of the reset spring is adapted to the inner wall of the second section; a through hole is formed in the top part of the first section; the pencil lead is provided with a pencil lead top inclined surface; the pencil lead is located in the first section and is arranged on the chutes; one side of the pencil lead is matched with the reset pressure spring; an inclined surface push rod is arranged in the second section; the inclined surface push rod penetrates through the reset spring and the through hole and is matched with the pencil lead top inclined surface. The pencil with the moving pencil lead has the characteristics of being simple in structure, safe and reliable, is capable of rapidly filling a recognition area meeting a machine-readable condition of a computer, and can be used for helping an examinee to save valuable exam time and leaving more time to think, and misreading of the computer is effectively prevented.

Description

technical field [0001] The invention relates to a pencil, in particular to a moving lead pencil. Background technique [0002] Now in order to speed up the modernization process, computer applications have become quite popular, and the filled forms will also be machine-readable by computers to speed up the review process, and to a certain extent, improve the accuracy and prevent human errors. The identification area on the read file is computer-readable. Especially now, candidates usually fill in standardized test questions (cards) suitable for computer reading when they take the test. When answering the standardized test questions, candidates often use 2B or drawing pencils, etc., to black out the selection box of the standard written test questions. During the blacking process, due to the width and shape of the lead in the pencil, candidates are often required to use pencils. Repeatedly paint the selection box of the standardized test questions to try to avoid blanking o...

AI Technical Summary

Problems solved by technology

[0004] However, for the machine-readable card filling required during the test, the rotating refill pencil is used to paint a standard circle, while the machine-readable card frame is generally rectangular, requiring candidates to repeatedly draw multiple standard circles in the horizontal direction. The rectangle required to form the frame of the machine-readable card, so the pencil with a rotating refill not only cannot meet the requirements in actual use, but also delays time

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