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Diversified self-dust-collection chalk sleeve for Japanese teaching

A chalk cover, Japanese technology, applied in chemical instruments and methods, smoke removal, cleaning methods and utensils, etc., can solve the problems of a large number of chalk scraps, inconvenient length adjustment, etc., and achieve the effect of suppressing drift, convenient operation and reducing harm

Inactive Publication Date: 2021-06-01
李启超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to solve the problems of inconvenient length adjustment and the generation of a large amount of chalk crumbs, to provide a multi-purpose self-vacuum chalk set for Japanese teaching that is easy to adjust and can automatically absorb chalk crumbs

Method used

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  • Diversified self-dust-collection chalk sleeve for Japanese teaching
  • Diversified self-dust-collection chalk sleeve for Japanese teaching
  • Diversified self-dust-collection chalk sleeve for Japanese teaching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as Figure 1-2 As shown, a diversified self-vacuum chalk case for Japanese teaching includes a cylindrical shell 1, and the cylindrical shell 1 is provided with an accommodation chamber 2 and a chip removal groove 3, and one end of the accommodation chamber 2 is opened, and the accommodation chamber There are two chip removal passages 4 on both sides of 2, one end of the chip removal passage 4 communicates with the chip removal groove 3, and the other end of the chip removal passage 4 extends to the opening of the housing cavity 2, and on the side wall of the cylindrical housing 1 A plurality of thermoelectric power generation boards 5 are embedded, and heat conduction sheets are respectively attached to the high-temperature and low-temperature surfaces of the thermoelectric power generation boards 5 , and a battery 6 is embedded in the cylindrical housing 1 , and the battery 6 is electrically connected to the thermoelectric power generation board 5 . An electric f...

Embodiment 2

[0029] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that: on the side wall of the cylindrical shell 1, there are a plurality of protruding liquid sacs 17 equidistantly arranged along the axial direction thereof, and the protruding liquid sacs 17 are made of rubber Made of deformable material, the raised liquid bag 17 is filled with magnetorheological fluid, and the top plate 12 is made of magnetic material.

[0030] In this embodiment, because the magnetorheological fluid exhibits low-viscosity Newtonian fluid characteristics under zero magnetic field conditions, and high-viscosity, low-fluidity Bingham fluid characteristics under the action of a strong magnetic field, the top plate 12 moves in the accommodation chamber 2 When adjusting, approach each raised liquid bag 17 in turn, and the fluidity of the magnetorheological fluid in the raised liquid bag 17 closer to the top plate 12 is lower. The teacher can judge the top plate by touch...

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Abstract

The invention belongs to the technical field of Japanese teaching aids, and particularly relates to a diversified self-dust-collection chalk sleeve for Japanese teaching. The chalk sleeve comprises a cylindrical shell; a containing cavity and a chip removing groove are formed in the cylindrical shell; one end of the containing cavity is open; two chip removing channels are formed in the two sides of the containing cavity; one end of each chip removing channel communicates with the chip removing groove, and the other end of each chip removing channel extends to the opening of the containing cavity; a plurality of thermoelectric power generation plates are embedded in the side wall of the cylindrical shell; heat conduction pieces are attached to the high-temperature faces and the low-temperature faces of the thermoelectric power generation plates; a storage battery is embedded in the cylindrical shell; and the storage battery is electrically connected with the thermoelectric power generation plates. The thermoelectric power generation plates can supply power to an electric fan through the temperature of the hand of a teacher; and when the electric fan works, chalk dust generated during chalk writing is sucked into the dust removing groove through the dust removing channels, so that the chalk dust is effectively prevented from drifting away in air, and the harm of the chalk dust to the health of the teacher and students is reduced.

Description

technical field [0001] The invention belongs to the technical field of Japanese teaching appliances, in particular to a diversified self-dusting chalk set for Japanese teaching. Background technique [0002] With the acceleration of the process of globalization, Japanese has become one of the important subjects in people's learning. In the process of diversified Japanese teaching, chalk is a commonly used teaching tool. Some Japanese teachers are used to putting chalk covers on the chalk for easy writing. [0003] Most of the traditional chalk covers are simple in structure and single in function, which can only play the role of protection and convenience for writing. The chalk shavings are scattered in the air, polluting the teaching environment and causing serious harm to the health of teachers and students. [0004] For this reason, we propose a kind of self-absorbing dust chalk cover for diversified Japanese teaching to solve the above problems. Contents of the invent...

Claims

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Application Information

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IPC IPC(8): B43K23/016B08B15/00
CPCB08B15/00B43K23/016
Inventor 李启超
Owner 李启超
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