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Special chalk holder

A pen holder and chalk technology, applied in the field of special chalk holders, can solve problems such as throat discomfort and health problems, and achieve the effects of strong product adaptability, time saving and resource saving.

Inactive Publication Date: 2016-11-16
YANTAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Millions of teachers use chalk to write on the blackboard every day, and live in the chalk dust after wiping the blackboard every day, which can cause discomfort in the nose, throat, and throat; at the same time, there are health problems in the long-term direct contact of the skin with chalk

Method used

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Embodiment 1

[0015] Example 1: When in use, first, hold the pen holder outer cover (2), rotate the pen holder body (1) to unscrew the spiral inner seat (3) from the pen holder, put the large end of the chalk into the spiral inner seat (3), and then Rotate the pen holder body (1) in the opposite direction so that the spiral inner seat is retracted into the pen holder together with the chalk. By rotating the pen holder body (1) in both directions, you can adjust the amount of chalk protruding, and write in the normal way of holding the pen. The head (4) is located on the upper part of the pen container, which can erase writing mistakes at any time; the special chalk container can be hung on the blackboard at a suitable position by the elastic thread (5).

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Abstract

The invention discloses a special chalk holder, which belongs to the technical field of modern life application. Millions of teachers in modern life use chalk to write on the blackboard every day, and live in the chalk dust after wiping the blackboard every day, which can cause discomfort in the nose, throat and throat; at the same time, long-term direct skin contact with chalk also exists health problems. The purpose is to solve practical problems, improve teaching conditions, avoid direct contact between users' fingers and chalk, and reduce invisible health hazards to users; at the same time, the use of chalk can be extended, the remaining amount is small, and environmental protection is achieved; it is characterized by The device is composed of a pen holder body, a pen holder jacket, a spiral inner seat, a wiper head, an elastic thread and other related auxiliary functional parts. The invention has a series of advantages such as erasing writing errors at any time, saving time, improving efficiency, long service life and low cost; meanwhile, the product has a wide range of adaptability, good promotion prospects, and good economic and social benefits.

Description

technical field [0001] The invention relates to a special chalk container, which belongs to the technical field of modern life application. Background technique [0002] Chalk is a tool widely used in daily life and is generally used for writing on blackboards. The composition of chalk is a white precipitate of calcium sulfate, which is not easily decomposed, and the particles are larger than dust. Teachers often need to write and draw on the blackboard during lectures, and they have to constantly erase and write in a class of 45 to 50 minutes. When the class is over, a layer of white chalk dust is often left on the hands and sleeves; Class fingers are covered with white marks and need to be washed. Millions of teachers use chalk to write on the blackboard every day, and live in the chalk dust after wiping the blackboard every day, which can cause discomfort in the nose, pharynx, and throat; Contents of the invention [0003] The purpose of the invention is to solve pra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43K23/016B43L21/00
CPCB43K23/016B43L21/00
Inventor 谢春玲葛长景
Owner YANTAI UNIV
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