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Turnable blackboard eraser

A blackboard eraser and folding technology, which is applied in the field of teaching equipment, can solve the problems of environmental damage, easy staining of table clothes, flying dust, etc., and achieves the effects of convenient use, labor saving, and simple structure

Inactive Publication Date: 2015-06-24
侯慧玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing blackboard erasers will be covered with dust after being used several times, and dust will fly around when cleaning, causing great damage to the environment, and when the blackboard eraser is not in use, it is easy to stain the desktop or clothes when placed on the table

Method used

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  • Turnable blackboard eraser

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Embodiment Construction

[0010] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with specific embodiments and illustrations.

[0011] Such as figure 1 As shown, a foldable blackboard eraser includes a box body 1, a blackboard body 2 and a rotating shaft 3, the rotating shaft 3 is fixedly mounted on the box body 1, and the number of rotating shafts 3 is three, and they are exactly the same; The blackboard eraser body 2 of the present invention comprises three wipe blocks, and the three wipe blocks are identical, and the wipe blocks include a wipe core and a soft pad, and the protective shell is wrapped around the wipe core to fix the wipe core into a ball, so as to produce a good The wiping effect, the wiper block can rotate around the shaft, and the three protective shells of the wiper block are in contact with each other. When the positions of the left...

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PUM

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Abstract

The invention discloses a turnable blackboard eraser comprising a box, a blackboard eraser body and three rotating shafts. The rotating shafts are fixedly mounted on the box and are completely the same. The blackboard eraser body comprises three completely same erasing blocks. Each erasing block comprises an erasing core and a soft pad. A protective casing wraps each erasing core to enable the same to be fixed into a lump, and good erasing effect is achieved. The three protective casings of the erasing blocks contact with one another. A left side plate and a right side plate of the box can extend inwards and outwards; when extending to the innermost ends, the left side plate and the right side plate just contact with the left protective casing and the right protective casing to fix the position of the blackboard eraser body; when the left side plate and the right side plate extend to the outmost sides, the left erasing block and the right erasing block can be turned over outwardly to realize turnover of the middle erasing block. The turnable blackboard eraser is simple in structure and convenient to use, dust flying caused during cleaning of the blackboard eraser is avoided effectively, and a broad application prospect is achieved.

Description

technical field [0001] The invention belongs to the field of teaching appliances, in particular to a foldable blackboard eraser. Background technique [0002] For the well-known problem that there is a lot of dust on the blackboard and it is difficult to clean up, it makes teachers and students a headache. Existing blackboard erasers will be covered with dust after being used several times, and dust will fly around during cleaning, causing great damage to the environment, and when the blackboard eraser is not in use, it is easy to stain the desktop or clothes when placed on the table. Therefore, it is necessary to design a blackboard wiper that can be folded into the box body for cleaning, and when not in use, the blackboard wiper can be stored in the box. Contents of the invention [0003] The object of the present invention is to provide a foldable blackboard eraser for the deficiencies of the prior art. [0004] The technical problem to be solved by the prese...

Claims

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Application Information

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IPC IPC(8): B43L21/00
CPCB43L21/02
Inventor 侯慧玲
Owner 侯慧玲
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