a teaching tool

A technology of teaching aids and borders, applied in the field of teaching aids, can solve problems such as falling on desks, in front of podiums, or even being inhaled into the body, causing pneumonia or respiratory diseases, chalk dust flying all over the sky, etc., to achieve good erasing effect, Prevent dust from flying around and have good adaptability

Inactive Publication Date: 2017-09-19
宿州学院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because the blackboards used in various schools in our country are still mainly traditional blackboards, it is time-consuming and laborious to wipe the blackboards with blackboard erasers. Even if inhaled into the body, it affects mood and health. Inhaling too much chalk dust can cause discomfort in the throat, nose, and throat, and even cause pneumonia or respiratory diseases in severe cases.
[0003] Due to the large number of students in the classroom, when the students sitting on the edge observe the blackboard, the observation is not clear due to the reflection of light, which makes teaching inconvenient and affects learning. Further improvement is needed

Method used

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Embodiment Construction

[0049] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other; the present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0050] refer to figure 1 , 2 :

[0051] A teaching tool proposed by the present invention includes a frame, a support shaft 1 , a blackboard body 2 , a blackboard eraser assembly, a power unit 3 , a gear 26 , and a grip 27 .

[0052] The frame includes a first frame, a second frame 4, a third frame, and a fourth frame 5 arranged in sequence, the first frame and the third frame are arranged oppositely, and the first frame and the third frame are arranged vertically; the second frame 4 and the third frame are arranged vertically; The fourth frame 5 is arranged oppositely, the second frame 4 is placed above the fourth frame 5, and the second frame 4 and the fourth fram...

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Abstract

The invention discloses a teaching appliance comprising a framework, a supporting shaft, a blackboard body, a blackboard eraser assembly and a power unit. The framework comprises a first frame, a second frame, a third frame and a fourth frame which are sequentially arranged; the first frame and the third frame are oppositely arranged and both vertically arranged; the second frame and the fourth frame are oppositely arranged, the second frame is arranged above the fourth frame, and the second frame and the fourth frame are horizontally arranged; the supporting shaft is parallel to the first frame; the first end of the supporting shaft is connected with the second frame; the second end of the supporting shaft is connected with the fourth frame; the blackboard body is arranged on the inner side of the framework; the length direction of the blackboard body is parallel with the length direction of the second frame; and the blackboard body is installed on the supporting shaft. The teaching appliance makes teaching convenient and is good in using effect.

Description

technical field [0001] The invention relates to the technical field of teaching supplies, in particular to a teaching supplies. Background technique [0002] Because the blackboards used in various schools in our country are still mainly traditional blackboards, it is time-consuming and laborious to wipe the blackboards with blackboard erasers. Even if inhaled into the body, it affects mood and health. Inhaling too much chalk dust can cause discomfort in the pharynx, nose, and throat, and even cause pneumonia or respiratory diseases in severe cases. [0003] Due to the large number of students in the classroom, when the students sitting on the edge observe the blackboard, the observation is not clear due to the reflection of light, which makes teaching inconvenient and affects learning. Further improvement is needed. Contents of the invention [0004] In order to solve the technical problems existing in the background technology, the present invention proposes a teaching ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43L1/04A47B97/04B43L21/02
CPCA47B97/04B43L1/04B43L21/00
Inventor 郑科研杨亚柳郑小为
Owner 宿州学院
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