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Electric blackboard eraser

A blackboard eraser and electric technology, applied in the field of teaching supplies, can solve problems such as physical injury, and achieve the effect of convenient use and various power supply methods

Inactive Publication Date: 2013-02-13
李勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Blackboards, blackboard erasers and chalk are essential teaching supplies for school teaching, but a large amount of chalk dust will be produced when wiping the blackboard. Because the chalk dust is lighter and not easy to sink, the chalk dust will float in the classroom for a long time. Long-term inhalation of chalk dust by teachers and students will cause harm to the body

Method used

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  • Electric blackboard eraser

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with accompanying drawing.

[0009] Such as figure 1 As shown, the present invention includes dust box 1, dust suction device 2, box cover 3, battery box 5, dust suction channel 6 and sponge wipe 7, also includes solar panel 4 and pressure sensor 8, and solar panel 4 is contained in box cover 3 On the top, the dust suction channel 6 is located on both sides of the sponge wipe 7, the pressure sensor 8 is installed in the sponge wipe 7, and the dust suction device 2 has two power supply modes of battery power supply and solar power supply.

[0010] When wiping the blackboard, stick the blackboard eraser firmly on the blackboard and wipe it back and forth. The pressure sensor 8 of the present invention is installed in the sponge wiper 7. When the sponge wiper 7 is attached to the blackboard, the pressure sensor 8 is pressed and the dust collection device 2 Automatic start, the dust suction channel 6 is l...

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PUM

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Abstract

The invention discloses an electric blackboard eraser, belonging to the field of teaching supplies. The electric blackboard eraser comprises a dust box, a dust collection device, a box cover, a battery box, dust collection channels and a sponge eraser, and further comprises a solar energy panel and a pressure sensor, wherein the solar energy panel is installed above the box cover; the dust collection channels are positioned on both sides of the sponge eraser; and the pressure sensor is mounted in the sponge eraser; and the dust collection device is provided with two power supply modes of battery power supply and solar power supply. The electric blackboard eraser has the following beneficial effects that the blackboard eraser is about to automatically turn on the dust collection device when the blackboard is erased so that the chalk dust is absorbed effectively, the power supply modes are diverse, and the convenience in use is achieved.

Description

technical field [0001] The invention relates to an electric blackboard eraser, belonging to the field of teaching supplies. Background technique [0002] Blackboards, blackboard erasers and chalk are essential teaching supplies for school teaching, but a large amount of chalk dust will be produced when wiping the blackboard. Because the chalk dust is lighter and not easy to sink, the chalk dust will float in the classroom for a long time. Long-term inhalation of chalk dust by teachers and students will cause harm to the body. Contents of the invention [0003] Aiming at the above-mentioned problems in the prior art, the present invention provides an electric blackboard eraser. When wiping the blackboard, the blackboard eraser will automatically turn on the dust collection device to effectively suck away the chalk dust. It has various power supply modes and is easy to use. [0004] In order to achieve the above object, the technical solution adopted by the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/02
Inventor 李勇
Owner 李勇
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