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Blackboard eraser

A technology of blackboard eraser and board body, which is applied in the field of blackboard eraser, and can solve problems such as dust scattering, dust generation, and health impact of teaching staff

Inactive Publication Date: 2018-02-09
ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the above-mentioned prior art, the purpose of the present invention is to overcome the generation of dust that can be caused by writing with chalk in the prior art. When using chalk to wipe the blackboard, it will still cause the dust to scatter everywhere, thereby bringing harm to the health of teaching staff, etc. The problem of huge impact, so as to provide a blackboard eraser that can easily achieve better dust collection effect and clean working environment

Method used

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Embodiment Construction

[0033] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0034] In the present invention, in the absence of a contrary statement, the orientation words included in the term, such as "inner, outer, upper and lower", etc., only represent the orientation of the term in the normal use state, or are understood by those skilled in the art. colloquial term and should not be construed as a limitation of the term.

[0035] The invention provides a kind of blackboard eraser, wherein, as Figure 1-Figure 5 As shown, the blackboard eraser includes a body that surrounds and forms a cavity, and at least one set of dust suction mechanisms arranged in the cavity; wherein,

[0036] The body is enclosed by an upper plate, a lower pla...

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Abstract

The invention discloses a blackboard eraser. The blackboard eraser comprises a body which is formed by defining and provided with a cavity body and at least one set of dust absorbing mechanism arranged in the cavity body. The body is defined by an upper plate body, a lower plate body and four side plates, and a cuboid structure is formed. The lower plate body is provided with at least a dust wiping piece (1). The lower plate body and the upper plate body are incompletely sealed. The dust absorbing mechanism at least comprises an extruded block (4), springs (5) arranged in the cavity body, an air absorbing part (6) arranged in the cavity body and a pressure conversion unit used for connecting the extruded block (4) with the air absorbing part (6), wherein a part of the extruded block penetrates through the side plates and extends into the cavity body. When the extruded block (4) is extruded to reset, the pressure conversion unit can drive the air absorbing part (6) to rotate. One ends of the springs (5) are fixedly connected, and the other ends of the springs are connected with the extruded block (4). Through the above design, the effect of dust absorption is realized.

Description

technical field [0001] The invention relates to the field of teaching appliances, in particular to a blackboard eraser. Background technique [0002] Although along with the development of science and technology, the application of multimedia teaching aids is more and more extensive, it still cannot replace the traditional teaching method of writing and teaching with chalk. And in daily teaching work, adopting chalk to write can cause the generation of dust, also can still cause dust to scatter everywhere when using chalk to wipe blackboard, thereby brings huge impact to the health of teaching staff etc. [0003] Therefore, providing a kind of blackboard eraser that can realize better dust-absorbing effect conveniently, clean working environment is the problem that the present invention urgently needs to solve. Contents of the invention [0004] For the above-mentioned prior art, the purpose of the present invention is to overcome the generation of dust that can be caused...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/02
CPCB43L21/02
Inventor 李梦窦海石王强应顺华黄年友
Owner ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE
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