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Self-washing dustproof blackboard eraser

A blackboard eraser and self-cleaning technology, applied in the field of blackboard erasers, can solve the problems of easy inhalation of dust, physical injury, air pollution, etc., and achieve the effects of preventing chalk dust from flying, convenient cleaning, and avoiding personal harm.

Inactive Publication Date: 2018-08-03
高天宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary blackboard erasers generally include a casing and wiping cotton, and the wiping cotton is bonded in the casing. When wiping the blackboard, the user holds the casing, and the wiping cotton rubs against the blackboard to erase the chalk characters. Generally, dust will be raised, causing air pollution
And these dusts are easily inhaled by people, causing bodily harm to people.

Method used

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  • Self-washing dustproof blackboard eraser

Examples

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Effect test

Embodiment Construction

[0012] Attached below figure 1 Embodiments of the present invention are described.

[0013] Self-cleaning dustproof blackboard eraser, such as figure 1 As shown, it includes a housing 1, the middle part of the inner cavity of the housing 1 is provided with a water seepage plate 102, and the inner cavity of the housing 1 at the front of the water seepage plate 102 forms a wiper cotton installation groove 101 for installing the wiper cotton 3, and the water seepage The housing 1 inner chamber at the board 102 rear portion is separated into the cleaning water chamber 105 that the board eraser cotton 3 is cleaned by the partition 104 and the water seepage water chamber 106 that the blackboard eraser is dust-free when wiping to the inside of the board eraser cotton 3 .

[0014] Specifically, the upper wall of the casing 1 corresponding to the water seepage cavity 106 is provided with a water inlet I5, and the water inlet I5 is equipped with an inflation valve I4, and the water see...

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PUM

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Abstract

The invention discloses a self-washing dustproof blackboard eraser. The blackboard eraser comprises a shell, wherein a water seepage plate is arranged in the middle of an inner cavity of the shell, aneraser cotton mounting groove for installing a eraser cotton is formed in the part, at the front part of the water seepage plate, of the inner cavity of the shell, and the part, at the rear part of the water seepage plate, of the inner cavity of the shell is divided into a cleaning water cavity and a water seepage water cavity through a separation plate, wherein the cleaning water cavity is usedfor cleaning the eraser cotton, and the water seepage water cavity is used for enabling the blackboard eraser to be free of dust when the blackboard eraser is used for wiping by water seeping into theeraser cotton . According to the self-washing dustproof blackboard eraser, the problem that environment of a classroom is polluted due to chalk dust flies is prevented, and therefore personal hazardscaused by the fact that dust is inhaled by people can be avoided; and the blackboard eraser is provided with the structure for cleaning the eraser cotton, so that the eraser cotton is convenient to clean, and the eraser cotton can be kept neat and clean.

Description

technical field [0001] The invention belongs to the technical field of blackboard erasers, in particular to a self-cleaning dust-proof blackboard eraser. Background technique [0002] Blackboard eraser has always been used as one of the teaching tools, and is widely used in teaching to play the role of erasing chalk characters. Ordinary blackboard erasers generally include a casing and wiping cotton, and the wiping cotton is bonded in the casing. When wiping the blackboard, the user holds the casing, and the wiping cotton rubs against the blackboard to erase the chalk characters. Generally, dust will be raised and cause air pollution. And these dusts are easily inhaled by people, causing bodily harm to people. Therefore it is necessary to propose improvements. Contents of the invention [0003] The technical problem solved by the present invention is to provide a self-cleaning dust-proof blackboard eraser. The present invention can prevent chalk dust from flying, avoid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L21/02
CPCB43L21/02
Inventor 曹文静高天宇
Owner 高天宇
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