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Circulating self-erasing blackboard

A circulatory, blackboard technology, used in cleaning devices for blackboards or slates, reusable writing boards, printing, etc., can solve problems such as dust flying affecting physical and mental health, and achieve the effects of simple structure, reduced flying, and convenient lifting.

Inactive Publication Date: 2012-02-15
JINHUA VOCATIONAL TECH COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of the traditional blackboard is that the flying dust affects people's physical and mental health, and sometimes they have to look for blackboard erasers everywhere. This invention is designed to solve the defects of the traditional blackboard and has a good market application prospect

Method used

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  • Circulating self-erasing blackboard
  • Circulating self-erasing blackboard
  • Circulating self-erasing blackboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Such as figure 1 It is a structural schematic diagram of the circulating self-erasing blackboard, the rotating frame (3) is hinged in front of the main bracket (1), figure 1 It is a schematic diagram when the rotating frame (3) is opened, and the dust cover (2) is located behind the main support (1).

[0016] Such as figure 2 It is the perspective view of the appearance of the circulating self-erasing blackboard, such as image 3 It is the front appearance view of the circulating self-erasing blackboard, which is a schematic diagram when the rotating frame (3) is closed. The blackboard is composed of blackboard I (6) and blackboard II (7), and the blackboard is located on the rotating frame (3), the handle (5) is located outside the rotating frame (3).

[0017] Such as Figure 4 It is an enlarged schematic diagram of the transmission system. The transmission system is mainly composed of sprockets, runners, chains, handles and transmission shafts. The sprockets, run...

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Abstract

The invention relates to a blackboard, and relates to a teaching tool. A circulating self-erasing blackboard mainly comprises a main support, a dustproof cover, a rotary framework, a blackboard, a connecting pin, wiping rag, an adhesive tape and a transmission system, wherein the blackboard consists of a blackboard I and a blackboard II; the transmission system mainly comprises a chain wheel, a rotating wheel, a chain, a handle and a transmission shaft; the rotary framework is hinged to the front of the main support; the blackboard is connected with the chain through the connecting pin; the diameter of the connecting pin is matched with the aperture of a chain section; the wiping rag is connected to the back of the backboard through the adhesive tape; the blackboard is positioned in the rotary framework; and the chain wheel, the rotating wheel and the chain in the transmission system are positioned on two inner side faces of the rotary framework. The circulating self-erasing blackboard is simple in structure, and can erase a large area of chalk handwriting, and the dust can be sealed and stored in a sealed space.

Description

technical field [0001] The invention relates to a blackboard for teaching equipment, in particular to a circular self-erasing blackboard which can automatically wipe the blackboard during the cyclical position change of two blackboards without causing a large amount of dust to fly. Background technique [0002] The blackboard has been used as a traditional teaching tool because of its simplicity and convenience and some characteristics in teaching that teachers like to use it. Even with the development of modern teaching technology today, the blackboard is still used as an auxiliary tool while using multimedia teaching, especially for old students. Teachers always love to use blackboards. The defect of the traditional blackboard is that the flying dust affects people's physical and mental health, and sometimes people have to look for blackboard erasers everywhere. The present invention is designed to solve the defects of the traditional blackboard and has a good market appli...

Claims

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Application Information

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IPC IPC(8): B43L1/04B43L21/00
Inventor 陆勇星董志克章斌鑫
Owner JINHUA VOCATIONAL TECH COLLEGE