Blackboard eraser for teaching capable of automatically sucking chalk ash
A technology of chalk dust and blackboard eraser, which is applied to blackboard or slate cleaning devices, office supplies, printing, etc. It can solve the problems of affecting the breathing of teachers and students in the front row, the dust is easy to be inhaled, and the health is damaged. Easy and quick to disassemble, avoid scattering, and improve air quality
Inactive Publication Date: 2018-06-12
何瑞荣
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Problems solved by technology
Ordinary blackboard erasers will raise dust when wiping the blackboard, causing air pollution
And these dusts are easy to be inhaled by people, affecting the breathing of teachers and students in the front row, and causing harm to human health
Method used
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[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0014] see Figure 1-3 , a kind of embodiment that the present invention provides: a kind of blackboard eraser for teaching of self-absorbing chalk dust, comprises outer casing 3 and fan 6, and the top of outer casing 3 is provided with handgrip 13, and the surface of handgrip 13 is inlaid A control panel 14 is installed, an indicator light 16 and a switch 15 are arranged above the control panel 14, a charging port 2 is provided on one side of the outer shell ...
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The invention discloses a blackboard eraser for teaching capable of automatically sucking chalk ash. The blackboard eraser comprises an outer shell and a fan; a handle is arranged above the outer shell; a control panel is embedded in the surface of the handle; an indicating lamp and a switch are arranged above the control panel; a charging port is formed in one side of the outer shell; a transparent ash collecting box is mounted on the other side of the outer shell; a brush mounting plate is fixed below the outer shell, and is provided with a brush; the fan is mounted in the outer shell, and is connected with a motor through a rotating shaft; a graphene battery is mounted on the left side of the motor; the fan is arranged on the right side of the motor; and a flow scattering plate is arranged on the right side of the fan. The blackboard eraser is simple and convenient to use, prevents scattering and flying of the chalk ash, effectively prevents teachers and students in front rows frombreathing the chalk ash into respiratory tracts, is safe and environment-friendly in use, and is simple and fast in installation and disassembly of the transparent ash collecting box.
Description
technical field [0001] The invention relates to the technical field of English teaching equipment, in particular to a self-absorbing chalk dust blackboard eraser for teaching. Background technique [0002] At present, blackboard eraser is widely used in the middle of teaching as one of important teaching tools, and serves as the role of wiping chalk characters. Ordinary blackboard erasers will raise dust when wiping the blackboard, causing air pollution. And these dusts are easily inhaled by people, affecting the breathing of teachers and students in the front row, and causing harm to people's health. Contents of the invention [0003] The object of the present invention is to provide a kind of teaching blackboard eraser of self-absorption chalk dust, to solve the problem that proposes in the above-mentioned background technology, the beneficial effect that has is: when wiping off the chalk dust on the blackboard, the chalk dust can be absorbed into In the ash collection...
Claims
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IPC IPC(8): B43L21/02
CPCB43L21/02
Inventor 何瑞荣
Owner 何瑞荣