Self-cleaning dustproof blackboard eraser

A blackboard eraser and self-cleaning technology, which is applied in the field of blackboard eraser, can solve the problems of easy inhalation of dust, raising dust, physical injury, etc., and achieve the effect of preventing chalk dust from flying, convenient cleaning, and avoiding personal hazards
CN108528110AInactive Publication Date: 2018-09-14ๆŽๆ€่““
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ๆŽๆ€่““
Publication Date
2018-09-14
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides a self-cleaning dustproof blackboard eraser. The self-cleaning dustproof blackboard eraser comprises a shell. A water seepage plate is arranged in the middle of an inner cavityof the shell. A board wiping cotton mounting groove for mounting board wiping cotton is formed in the portion, at the front of the water seepage plate, of the inner cavity of the shell. The portion, at the rear of the water seepage plate, of the inner cavity of the shell is divided into a cleaning water cavity for cleaning the board wiping cotton and a water seepage cavity for infiltrating water into the board wiping cotton so as to avoid dust when the blackboard eraser is used for wiping. According to the self-cleaning dustproof blackboard eraser, the chalk dust can be well prevented from flying, the classroom environment pollution can be avoided, and personal hazards caused by dust inhalation can be avoided; and the structure for cleaning the board wiping cotton is arranged on a blackboard eraser body, so that the board wiping cotton is convenient to clean, and the board wiping cotton is kept clear and clean.
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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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