Mechanical dust-proof eraser

A blackboard erasing and mechanical technology, which is applied to the cleaning device of blackboard or slate, printing, office supplies, etc., can solve the problems of high installation and maintenance cost, affecting teaching efficiency, affecting teaching effect, etc., to achieve compact structure and ensure fan Rotation speed, the effect of improving the dust phenomenon

Inactive Publication Date: 2017-01-25
JIANGSU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This design also brings a lot of inconvenience to the user
First of all, in the wiping process, it takes a lot of time to locate the parts to be wiped by controlling the switch, which seriously affects the teaching efficiency; secondly, the four motors consume a lot of power, wasting energy; in addition, the motors are noisy, It affects the teaching effect, and its structure is complicated, and the installation and maintenance costs are high, which is not conducive to widespread use

Method used

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  • Mechanical dust-proof eraser
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Embodiment Construction

[0024] The technical solution of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0025] like Figure 1 to Figure 5As shown, the mechanical dust-proof blackboard eraser of the present invention comprises a scrub brush 1 and a blackboard eraser housing 2, and the said scrub brush 1 is spread over a gap 1-1, and said blackboard eraser housing 2 is provided with a dividing plate 3, and said scrub brush 1 The first square through hole 1-2 and the second square through hole 1-3 are opened at both ends, and the rim of the first big round wheel 4-1 is located in the first square through hole 1-2 , the rim of the second large round wheel 4-2 is located in the second square through hole 1-3. The first large circular wheel 4-1 and the second large circular wheel 4-2 are all fixed on the blackboard eraser shell 2; the rim of the first large circular wheel 4-1 and the second large circular wheel 4-2 Protruding from the outside...

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Abstract

The invention refers to a mechanical dust-proof eraser, comprising a scrubbing brush and an eraser shell, wherein the scrubbing brush is full of gaps, the eraser shell has clapboard inside, the upward side of clapboard has gear drive mechanism which can make the primary fan and secondary fan turn, the downward side of clapboard has primary fan and secondary fan, wherein the primary fan and secondary fan are all facing the gaps on the scrubbing brush. The technical proposal of eraser completely uses the friction between eraser and blackboard as power source during using without electricity or changing battery which has lower cost. In additional, the eraser can also realize multi-level acceleration and guarantee the rotary speed of the fan, adequate suction of the two fans to the greatest extent possible.

Description

technical field [0001] The invention relates to a mechanical dustproof blackboard eraser, which is suitable for various places where chalk is used for writing. Background technique [0002] With the development of modern science and technology, multimedia teaching has entered our teaching classroom more and more, and has a tendency to gradually replace the traditional blackboard teaching method. Nevertheless, for many courses, the effect of multimedia teaching is not obvious, such as mathematics, English and so on. Therefore, the traditional blackboard teaching cannot be completely replaced. However, the dust generated in the traditional blackboard teaching process seriously endangers the health of students and teachers. Despite the existence of dust-free chalk, the dust flying during the wiping process is still very serious, becoming a threat to the health of students and teachers. a major killer. [0003] At present, the research on blackboard eraser at home and abroad ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/02
CPCB43L21/02
Inventor 任旭东杨雪情周王凡刘蓉王冕王长驰
Owner JIANGSU UNIV
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