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Novel dust-free blackboard eraser

A blackboard eraser, a new type of technology, applied in the field of blackboard eraser, can solve the problems of wasting speed, adverse effects on human health, etc., and achieve the effect of fast speed

Inactive Publication Date: 2016-06-29
刘志彬 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the blackboard erasers used in classrooms are made of sponge material, which is the most bought on the market. This kind of blackboard eraser produces a lot of dust in the process of wiping the blackboard, which will have adverse effects on human health after inhalation. Afterwards, there are often white traces. If all the words on the blackboard need to be erased, it will waste a lot of time and the speed is slow

Method used

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  • Novel dust-free blackboard eraser
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  • Novel dust-free blackboard eraser

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] figure 1 It is an explosion schematic diagram of a three-dimensional model of the device of the present invention, figure 1 Listed in detail the number of each part, mechanism and parts in the device of the present invention, according to figure 1 The present invention is divided into five parts and described in detail:

[0021] The first part is composed of a blackboard (13) and a rack (11) connected up and down. The function of the two racks is: the bottom cover of the new dust-free blackboard eraser and its internal mechanisms can move left and right on the surface of the blackboard through the racks. the goal of. (Of course it is realized under the drive of two motors (8)) by Figure 10 It can be seen that the movement law of the device of the present invention is to move along the rack.

[0022] The second part is the bottom of the box. The i...

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Abstract

The invention discloses a novel dust-free blackboard eraser. A rack is separately mounted on each of upper and lower side edges of a blackboard; four gears on the novel dust-free blackboard eraser are engaged with the racks, so that the novel dust-free blackboard eraser is attached to the surface of the blackboard; the novel dust-free blackboard eraser is driven by a motor to move left and right on the blackboard while rollers rotating at high speed in the device (novel dust-free blackboard eraser) rub with the blackboard (under the control of a control variable-speed switch) to erase writing on the blackboard. Generated dust is collected inside the device, and drops into a dust box below the device as a result of gravity, so that the purpose of cleanly erasing the blackboard without dust is achieved.

Description

1. Technical field: [0001] The invention relates to a blackboard eraser, in particular to a dust-free and fast blackboard eraser. 2. Technical background: [0002] At present, most of the blackboard erasers used in classrooms are made of sponge material, which is the most bought on the market. This kind of blackboard eraser produces a lot of dust in the process of wiping the blackboard, which will have adverse effects on human health after inhalation. There are often white marks after that. If all the words on the blackboard need to be erased, it will waste a lot of time and the speed is slow. 3. Contents of the invention: [0003] The technical problem to be solved by the present invention is that no dust is generated during the process of wiping the blackboard, so as to realize fast, efficient and dust-free teaching in the classroom. [0004] In order to solve the above-mentioned technical problems, the present invention is a novel dust-free blackboard eraser that does ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/02
Inventor 刘志彬夏贞波
Owner 刘志彬