A blackboard eraser for automatic vacuuming
An automatic cleaning and blackboard erasing technology, applied in the field of blackboard erasing, can solve the problems of irreplaceable, dust generation, and inability to discharge.
Active Publication Date: 2021-04-13
嘉兴市巨铂科技有限公司
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Problems solved by technology
[0002] The application of multimedia teaching aids is becoming more and more widespread, but it still cannot replace the traditional teaching method of writing and teaching with chalk. In daily teaching work, using chalk can write corresponding teaching information at any time according to needs. Chalk is the simplest and most direct method. Teaching tools, general classrooms will be equipped
[0003] However, writing with chalk will lead to the generation of dust. When using a blackboard eraser to wipe the blackboard, chalk dust will fly in the air, and teaching staff can easily inhale the dust. The dust accumulates in the lungs of the user and cannot be discharged. It will be damaged, and it will have a huge impact on the health of teaching staff, etc.
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[0016] 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.
[0017] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.
[0018] refer to Figure ...
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The invention discloses an automatic dust-absorbing blackboard eraser, which comprises a frame, cotton cloth is arranged inside the frame, grooves are opened on the outer side of the frame, and main plastic plates are symmetrically installed on the upper and lower inner walls of the groove. Auxiliary plastic plates are symmetrically installed on the inner walls on the left and right sides of the groove, and an active movement mechanism and a pair of auxiliary movement mechanisms are installed in the frame. The two auxiliary movement mechanisms are symmetrically arranged on both sides of the active movement mechanism. The movable mechanism includes a main rubber sheet and a main fur, and the auxiliary movable mechanism includes an auxiliary rubber sheet and an auxiliary fur, and both the main rubber sheet and the auxiliary rubber sheet are fixedly connected with the frame. The invention utilizes the action of wiping the blackboard and the inertial effect to make the rotating shaft drive the rotation of the main fur and the auxiliary fur during the rotation process, the main fur and the main rubber sheet rub against each other, the auxiliary fur and the auxiliary rubber sheet rub against each other, and the main rubber sheet and the auxiliary rubber sheet rub against each other. The auxiliary rubber sheet will carry a negative charge, and use static electricity to absorb dust.
Description
technical field [0001] The invention relates to the technical field of blackboard erasers, in particular to an automatic dust-absorbing blackboard eraser. Background technique [0002] The application of multimedia teaching aids is becoming more and more widespread, but it still cannot replace the traditional teaching method of writing and teaching with chalk. In daily teaching work, using chalk can write corresponding teaching information at any time according to needs. Chalk is the simplest and most direct method. Teaching tools are generally equipped in classrooms. [0003] However, writing with chalk will lead to the generation of dust. When using a blackboard eraser to wipe the blackboard, chalk dust will fly in the air, and teaching staff can easily inhale the dust. The dust accumulates in the lungs of the user and cannot be discharged. It will be damaged, and it will have a huge impact on the health of teaching staff. Contents of the invention [0004] The purpose...
Claims
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IPC IPC(8): B43L21/02
CPCB43L21/02
Inventor 吴鹏
Owner 嘉兴市巨铂科技有限公司