Automatic dust-collecting blackboard eraser
An automatic vacuuming and blackboard eraser technology, applied in the field of blackboard eraser, can solve the problems of affecting the health of students, putting clothes on the desk, and soiling teachers, so as to avoid flying everywhere, make it simple, and ensure physical health Effect
Inactive Publication Date: 2014-01-29
于洁
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Problems solved by technology
[0002] Blackboard eraser is a commonly used teaching tool in school. When erasing chalk characters with a blackboard eraser, the chalk dust will stick to the blackboard eraser. There is often a thick layer of chalk dust on the teacher's podium and desk, which may stain the teacher's clothes and the books on the desk at any time
Moreover, the chalk dust flying everywhere is inhaled by the students, which will seriously affect the health of the students.
Method used
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[0007] An automatic dust-absorbing blackboard eraser comprises a wiping cloth 2, a dust suction device 1 and a dust storage device 3, the dust suction device 1 includes a dust suction port and a dust discharge port, and the dust storage device 3 is connected to the dust discharge port, so The wiping cloth 2 described above is located on the dust suction port, and the wiping cloth 2 is provided with several suction holes. When wiping the blackboard, open the switch on the dust collector 1, the dust collector 1 starts to work, and the dust will be sucked into the dust storage device 3 from the suction hole of the wiper 2 by the dust collector 1, after wiping, The chalk dust in the dust storage device 3 is poured out.
[0008] The present invention can add a suitable wiping cloth 2 through the dry hair remover, and it is convenient to make.
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The invention provides an automatic dust-collecting blackboard eraser which comprises a piece of wiping cloth, a dust sucking device and a dust storing device. The dust collecting device comprises a dust suction inlet and a dust exhaust port. The dust storing device is connected with the dust exhaust port. The wiping cloth is arranged at the dust suction inlet and is provided with a plurality of intake holes. By the adoption of the principles of a dust collector, chalk dust produced from cleaning a blackboard is sucked into the dust storing device through the dust sucking device so as to prevent the chalk dust from flying around. The automatic dust-collecting blackboard eraser is reasonable in structure, easy to make and convenient to use, and the amount of chalk dust inhaled by teachers and students is reduced.
Description
technical field [0001] The invention relates to a blackboard eraser, in particular to an automatic dust-absorbing blackboard eraser. Background technique [0002] Blackboard eraser is a commonly used teaching tool in school. When erasing chalk characters with a blackboard eraser, the chalk dust will stick to the blackboard eraser. There is often a thick layer of chalk dust on the teacher's podium and desk, which may stain the teacher's clothes and the books on the desk at any time. Moreover, the chalk dust flying everywhere is inhaled by the students, which will seriously affect the health of the students. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an automatic dust-absorbing blackboard eraser with a reasonable structure and convenient use for the deficiencies of the prior art. [0004] The technical problem to be solved by the present invention is achieved through the following technical solutions. The ...
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IPC IPC(8): B43L21/02
Inventor 于洁黄玥
Owner 于洁