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Chalk sleeve

A chalk cover and chalk technology, applied in the field of teaching tools, can solve the problems of waste, short chalk, affecting teachers' classes, etc., and achieve the effects of resource saving, convenient use and novel design

Inactive Publication Date: 2015-06-17
晋一淑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chalk dust is easy to burn the skin of hands and affect the health of teachers; in addition, the hardness of chalk is poor, and the past chalk is easy to break. On the one hand, it will affect the teacher's class. cause waste

Method used

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  • Chalk sleeve

Examples

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Embodiment Construction

[0010] Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment is a chalk cover, which is characterized in that it includes a cover head 1 for clamping chalk and a telescopic cover body 2 for storing chalk. , the end of the sleeve 3 is provided with an inner retaining ring 4 and an outer retaining ring 5, the sleeve 3 at the bottom of the telescopic sleeve 2 is provided with a sleeve head 1, and the last section of the telescopic sleeve 2 A suction cup 8 is provided on the bottom 6 of the casing 3; a connecting thread 7 is provided on the casing 3 between the inner retaining ring 4 and the outer retaining ring 5. In the chalk cover of the present invention, the cover head 1 is clamped to the chalk, and the length of the telescopic cover body 2 can be adjusted arbitrarily to adapt to different chalks, which can maximize the use of chalk and save resources; the telescopic cover body 2 is provided with The suction cup 8 can absorb the chal...

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PUM

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Abstract

The invention discloses a chalk sleeve. The chalk sleeve is characterized by comprising a sleeve head used for tightly clamping chalk and a telescopic-type sleeve body used for containing the chalk. The telescopic-type sleeve body is formed by connecting of multiple hollow-out casing pipes layer by layer in a sleeving mode. The end of each casing pipe is provided with an inner stopping ring and an outer stopping ring. The sleeve head is arranged inside the casing pipe at the bottom of telescopic-type sleeve body. According to the chalk sleeve, the chalk is clamped by the sleeve head, the length of the telescopic-type sleeve body can be regulated at will to adapt to various chalk, the chalk can be maximally utilized, and resources are saved. The chalk sleeve has the advantages of being simple in structure, novel in design, convenient to use, and capable of meeting requirements of people.

Description

technical field [0001] The invention relates to a teaching tool, in particular to a chalk cover. Background technique [0002] Chalk is a tool widely used in daily life and is generally used for writing on blackboards. Teachers are the people who use chalk the most, and their hands are covered with chalk dust after a class. Chalk dust is easy to burn the skin of the hands and affect the health of the teacher; in addition, the chalk is poor in hardness, and the chalk in the past is easy to break. On the one hand, it will affect the teacher's class. cause waste. Contents of the invention [0003] In order to make up for the deficiencies of the prior art, the present invention provides a chalk case with simple structure and novel design. [0004] The present invention is achieved through the following technical solutions: [0005] A chalk cover, characterized in that it includes a cover for clamping chalk and a telescopic cover for storing chalk. There are an inner retai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43K23/016
CPCB43K23/016
Inventor 晋一淑
Owner 晋一淑
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