CN201217342Y

CN201217342Y - Environment-friendly non-dust self-cleaning blackboard eraser

Info

Publication number: CN201217342Y
Application number: CNU2008200290983U
Authority: CN
Inventors: 郭云民
Original assignee: Shaanxi University of Science and Technology
Current assignee: Shaanxi University of Science and Technology
Priority date: 2008-05-15
Filing date: 2008-05-15
Publication date: 2009-04-08
Anticipated expiration: 2018-05-15

Abstract

An environment-friendly flying dust-free self-cleaning blackboard eraser comprises an eraser body which is flexibly connected on a fixed frame through a flexible object; the fixed frame is movable sleeved on an erasing frame; a hair curtain for encircling the eraser body is arranged on the fixed frame; a dust collecting box below the eraser body is arranged on the fixed frame; a self-cleaning rod with hair is arranged below the fixed frame; the eraser body drives the fixed frame and the erasing frame to move so as to clean up the blackboard; when the eraser body gets dirtied, the self-cleaning rod moves up and down at the bottom part of the hair curtain so as to collect the dust and clean the hair curtain; therefore, the blackboard eraser is environment-friendly and pollution-free, which can be conveniently self-cleaned and can recycle the powder.

Description

Environment-friendly type does not have flying dust self-cleaning blackboard eraser

Technical field

The utility model relates to a kind of teaching aid, and particularly a kind of environment-friendly type does not have flying dust self-cleaning blackboard eraser.

Background technology

Blackboard eraser is a requisite teaching aid in the classroom instruction, existing blackboard eraser comprises housing and bristle composition, the shortcoming of this design is: can cause flying dust to pollute classroom environment by blackboard eraser wiping letter written with chalk in teaching process, directly have influence on the healthy of teacher and student, also be unfavorable for the recovery of powder and utilization once more, resource is caused certain waste.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides a kind of simple in structure, easy to maintenance, cheap environment-friendly type not have flying dust self-cleaning blackboard eraser, has self-cleaning convenience, the callable characteristics of powder.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of environment-friendly type does not have flying dust self-cleaning blackboard eraser, comprise a rub body 9, rub body 9 is flexible coupling on fixed mount 8, fixed mount 8 slides on the rubbing frame 3, fixed mount 8 is provided with the hair curtain 4 of enclosing rub body 9, dispose dust collection box 6 on the fixed mount 8, dust collection box 6 is positioned at the below of rub body 9 simultaneously, and the below of fixed mount 8 also disposes self-cleaning excellent 7 of band hair; The upper and lower side of rubbing frame 3 disposes and moves wheel 2, moves wheel 2 and is installed in the track 10 following on the blackboard 1.

The utility model is owing to adopt hair curtain 4 enclosing rub bodies 9, so have environment friendly and pollution-free characteristics since below fixed mount 8, also be provided with self-cleaning excellent 7, so have self-cleaning characteristics easily, since rub body 9 below dispose dust collection box 6, so have the characteristics of Powder Recovery.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a local horizontal cutaway view of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are described in further detail.

Referring to Fig. 1,2, a kind of environment-friendly type does not have flying dust energy self-cleaning blackboard eraser, comprise a rub body 9, rub body 9 usefulness elastomeric objects 11 are flexible coupling on fixed mount 8, fixed mount 8 slides on the rubbing frame 3, and fixed mount 8 is provided with the hair curtain 4 of enclosing rub body 9, and fixed mount disposes dust collection box 6 on (8), dust collection box 6 is positioned at the below of rub body 9 simultaneously, and the below of fixed mount 8 also disposes self-cleaning excellent 7 of band hair; The upper and lower side of rubbing frame 3 disposes and moves wheel 2, moves wheel 2 and is installed in the track 10 following on the blackboard 1.

Operation principle of the present utility model is:

During use, catch handle 5 up and down or side-to-side movement, rub body 9 drives fixed mount 8 by elastomeric objects and moves up and down on blackboard rubbing frame 3, when rub body 9 side-to-side movements, and blackboard rubbing frame 3 side-to-side movement thereupon, can clean off a blackboard 1, when rub body 9 is wiped when dirty, with have hair clean excellent 7 move up and down in hair curtain 4 bottoms several down, powder is just dropped in the dust collection box 6 can reach free wool curtain 4, reclaim the purpose of dust, the effect of hair curtain 4 is to prevent that dust from flying out.

Claims

1, a kind of environment-friendly type does not have flying dust self-cleaning blackboard eraser, comprise a rub body (9), it is characterized in that, rub body (9) is flexible coupling on fixed mount (8), fixed mount (8) slides on the rubbing frame (3), fixed mount (8) is provided with the hair curtain (4) of enclosing rub body (9), dispose dust collection box (6) on the fixed mount (8), and simultaneously dust collection box (6) is positioned at the below of rub body (9).

2, environment-friendly type according to claim 1 does not have flying dust self-cleaning blackboard eraser, it is characterized in that: the upper and lower side of said rubbing frame (3) disposes and moves wheel (2), moves wheel (2) and is installed in the upward following track (10) of blackboard (1).

3, environment-friendly type according to claim 1 does not have flying dust self-cleaning blackboard eraser, it is characterized in that: the below of said fixed mount (8) also disposes the self-cleaning rod (7) of band hair.