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Hanging sleeve type blackboard eraser

A technology of blackboard eraser and board surface, which is applied in the field of blackboard eraser, can solve the problems of students' troubles and affect students' rest after class, and achieve the effects of ensuring rest time, saving time and being convenient to use

Inactive Publication Date: 2012-11-21
杨慧冰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When class is over, students need to wipe off the writing on the blackboard written by the teacher in the previous class to prepare for the next class. When there is a large amount of blackboard writing on the blackboard, students need to spend more time cleaning the blackboard, which affects the students. We rest after class, which brings a lot of trouble to the students

Method used

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  • Hanging sleeve type blackboard eraser

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Experimental program
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Effect test

Embodiment Construction

[0010] Accompanying drawing is a kind of specific embodiment of the present invention. The hanging sleeve type blackboard eraser of this invention is characterized in that: the upper part of the blackboard eraser body 1 is equipped with a board surface 2, the board surface 2 is equipped with an electric motor 3, the bottom of the electric motor 3 is connected with a rotating shaft 4, and the bottom of the rotating shaft 4 is equipped with a sponge eraser. 5. A battery box 6 is installed on the right side of the electric motor 3, a switch 7 is installed on the right side of the battery box 6, and a fixed hand strap 8 is installed on the top of the board surface 2. The hanger-type blackboard eraser of this invention, when using, turn on the switch 7, the battery in the battery box 6 supplies power to start the electric motor 3, the electric motor 3 brakes the rotating shaft 4 to rotate, and the rotating shaft 4 drives the sponge eraser 5 to rotate, and the hand is inserted into t...

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PUM

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Abstract

The invention discloses a blackboard eraser, particularly a hanging sleeve type blackboard eraser which is characterized in that a board is mounted at the upper part of a blackboard eraser body; a motor is mounted in the board; a rotating shaft is connected with the lower part of the motor; a sponge eraser is mounted at the bottom end of the rotating shaft; a battery box is mounted on the right side of the motor; a switch is mounted on the left side of the battery box; and a fixing wristband is mounted at the top of the board. The blackboard eraser has the benefit that students can erase a blackboard fast with less force effectively, so as to greatly save time for the students and ensure after class break of the students.

Description

technical field [0001] The invention relates to a blackboard eraser, in particular to a hanging sleeve type blackboard eraser. Background technique [0002] When class is over, students need to wipe off the writing on the blackboard written by the teacher in the previous class to prepare for the next class. When there is a large amount of blackboard writing on the blackboard, students need to spend more time cleaning the blackboard, which affects the students. They take a break after class, which brings a lot of trouble to the students. Contents of the invention [0003] In order to make up for the defects of the prior art, the present invention provides a hanging type blackboard eraser which can be conveniently used by students. [0004] The present invention is achieved through the following technical solutions: [0005] Hanger-type blackboard eraser, characterized by: a board surface is installed on the upper part of the blackboard eraser body, an electric mot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/00B43L21/04
Inventor 杨慧冰
Owner 杨慧冰
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