Blackboard with electric blackboard eraser
A blackboard eraser and blackboard technology, applied in the field of teaching tools, can solve the problems of dust inhalation into the human body, physical harm, dust flying, etc., and achieve the effect of solving dust flying.
Inactive Publication Date: 2014-12-31
SHANDONG VOCATIONAL COLLEGE OF SCI & TECH
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Problems solved by technology
[0002] When cleaning the blackboard in the classroom, there is often a phenomenon of dust flying, and the dust is easily inhaled into the human body. After a long time, it is easy to get sick and cause harm to the body.
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[0008] As shown in the figure: the power interface 1 is connected to the plug 2, and the motor 5 is supplied with electric energy through the wire 3. The motor 5 drives the rotating shaft 6 and the pulley 4 to rotate, and the rotating shaft 6 drives the brush 7 to rotate. The brush 7 rotates and erases the blackboard 9 at the same time. baffle plate 12 prevents dust from flying out, and pulley 4 rotates along track 8 on the blackboard frame 10 to drive blackboard eraser frame 11 to move. Handle 13 is set on the frame of blackboard eraser, when power failure or class is over, drag handle 13 with hand, erase the handwriting on blackboard.
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The invention provides a blackboard with an electric blackboard eraser. The blackboard with the electric blackboard eraser is characterized in that a power interface is connected with a plug; electric energy is supplied to a motor through a lead; a revolving shaft and a pulley are driven by the motor to rotate; a hairbrush is driven by the revolving shaft to rotate; while the hairbrush rotates, writings on the blackboard are erased; a baffle is used for preventing dust from flying off; the pulley rotates along a track on a blackboard eraser frame to drive the blackboard eraser frame to move; the blackboard eraser frame is provided with handles. Through the installation, the blackboard provided by the invention is capable of solving the problem that the dust flies, and is time-saving and labor-saving.
Description
technical field [0001] The invention relates to the field of teaching tools, in particular to a blackboard with an electric blackboard eraser. Background technique [0002] When cleaning the blackboard in the classroom, there is often a phenomenon of dust flying, and the dust is easily inhaled into the human body. After a long time, it is easy to get sick and cause harm to the body. Contents of the invention [0003] The invention proposes a blackboard with an electric blackboard eraser, which is characterized in that: the power interface is connected to a plug, and the motor is provided with electric energy through a wire, the motor drives the rotating shaft and the pulley to rotate, and the rotating shaft drives the brush to rotate, and the brush rotates to erase the blackboard at the same time The writing on the blackboard, the baffle prevents dust from flying out, the pulleys rotate along the track on the blackboard frame, and drive the blackboard eraser frame to move,...
Claims
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IPC IPC(8): B43L21/00B43L1/04
Inventor 牛晓玲
Owner SHANDONG VOCATIONAL COLLEGE OF SCI & TECH