CN2923370Y

CN2923370Y - Dust-free blackboard eraser

Info

Publication number: CN2923370Y
Application number: CN 200620091987
Authority: CN
Inventors: 崔雅男
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-12
Filing date: 2006-07-12
Publication date: 2007-07-18
Anticipated expiration: 2016-07-12

Abstract

The utility model relates to a dust-free blackboard eraser. The box body is in an outlined structure, while a rectangular opening is arranged at the base plate and a rotating shaft whose surface is covered with a cleaning bar is fixed at the opening place; a sponge is fixed inside the box body and is contacted with the surface of the cleaning bar; the top plate of the box body is connected movably. In use, people can hold the box body by hand and put the cleaning bar on the surface of the blackboard, then move the box body and wipe off the words written with chalk by the cleaning bar. When the cleaning bar is rotated into the box body, the cleaning bar shall be contacted with the sponge and the sponge will let the chalk dust reserved on the surface of the sponge so as to avoid the phenomena of dust-flying. The utility model has the advantages of simple structure, convenience for using, beautiful outline and flexible operation, which can reduce the degree of dust pollution and maintain the environmental hygiene in use.

Description

Dust-free black board eraser

Technical field the utility model relates to a kind of realia, especially a kind of dust-free black board eraser.

The technical background blackboard eraser is the necessity that the teacher gives a lesson, and people use the blackboard eraser blackboard wiping., the chalk dust that drops when erasing the board influences teachers and students' health very much, and present blackboard eraser all can't solve this class problem, therefore also just can not protect teachers and students' health.In order to reduce dust pollution, protect teachers and students' health, we provide a kind of new-type dust-free black board eraser.

The summary of the invention the purpose of this utility model provides a kind of dust-free black board eraser, is used to solve the problem that ordinary blackboard eraser can't keep health in use.

For achieving the above object, the utility model dust-free black board eraser comprises the cube box body, and box body is empty body structure, offers many rectangular apertures at its base plate place, and insert respectively in the opening minor face at the two ends of many rotating shafts, is with the column cleaning rod in rotating shaft; Water-absorbing sponge of crosswise fixed in box body, and sponge contacts with the cleaning rod surface; It between box body top board and the box body drawing and pulling type bascule.

After adopting said structure, the user holds the cube box body and moves on the plate face, come the chalk writing on blackboard wiping surface by the cleaning rod that rolls, the surface of cleaning rod is stained with chalk dust, because cleaning rod is a rotary state when cleaning, and cleaning rod contacts with water-absorbing sponge, so, cleaning rod is stayed its surperficial chalk dust on the water-absorbing sponge when rotating, and effectively reduces dust pollution.

The utility model has the advantages that: simple in structure, convenient and practical, profile is exquisite, flexible operation, can reduce the dust pollution degree in use, keep environmental sanitation.

Description of drawings Fig. 1 is the overall structure schematic diagram of the utility model dust-free black board eraser.

The specific embodiment as shown in Figure 1, the utility model dust-free black board eraser comprises cube box body 1, box body 1 is empty body structure, offer many rectangular apertures at its base plate place, insert respectively in the opening minor face at the two ends of many rotating shafts 2, is with column cleaning rod 3 in rotating shaft 2; Water-absorbing sponge 4 of crosswise fixed in box body 1, and sponge 4 contacts with cleaning rod 3 surfaces; Be the drawing and pulling type bascule between box body 1 top board and the box body 1.Wherein, the volume of water-absorbing sponge 4 should be slightly less than box body 1 volume, and putting into the box body 1 back certain water gaging top board of injection is movable connection method, is convenient to clean sponge 4 and cleaning rod 3.When using, the user holds box body 1 cleaning rod 3 is placed on the blackboard surface, mobile box body 1 carries out wiping by 3 pairs of chalk writings of cleaning rod, when rotating into box body 1 inside, cleaning rod 3 contacts with water-absorbing sponge 4, sponge 4 is stayed own surface to the chalk dust on cleaning rod 3 surfaces, thereby the phenomenon of having avoided dust to dance in the air has kept the health of environment.

Claims

1, a kind of dust-free black board eraser, comprise cube box body (1), it is characterized in that: box body (1) is empty body structure, offers many rectangular apertures at its base plate place, insert respectively in the opening minor face at the two ends of many rotating shafts (2), is with column cleaning rod (3) in rotating shaft (2); A water-absorbing sponge of crosswise fixed (4) in box body (1), and sponge (4) contacts with cleaning rod (3) surface; Between box body (1) top board and the box body (1) is the drawing and pulling type bascule.