CN2547526Y

CN2547526Y - Dust-reducing eraser

Info

Publication number: CN2547526Y
Application number: CN 02213502
Authority: CN
Inventors: 赵健; 徐发荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-18
Filing date: 2002-03-18
Publication date: 2003-04-30
Anticipated expiration: 2012-03-18

Abstract

The utility model relates to the stationery, in particular to a dust-reducing eraser. The utility model is provided with an eraser back which is provided with a plurality of groups of hair bundles, and the surrounding of the hair bundles on the eraser back is provided with a rubber band. The utility model is characterized in that each group of hair bundles is slantways fixedly arranged on the eraser back in the same direction instead of vertically. When the utility model is used to erase the blackboard, the hair bundles should be kept uptilting. The erased dust falls in the rubber band along the direction of hair bundles and is stored in the rubber band for the moment. Therefore, the utility model has the advantages of simple structure and low cost, thereby effectively controlling the flying of dust, ensuring the environmental health of a classroom, which is good for health of both teachers and students.

Description

Subtract the dirt blackboard eraser

Technical field: the utility model relates to a kind of stationery, specifically a kind of dirt blackboard eraser that subtracts.

Background technology: well-known, blackboard eraser is made up of the blackboard eraser back of the body and some pieces, pieces is vertically fixed on the blackboard eraser back, when with its blackboard wiping, pieces is vertical with blackboard surface by touching, the chalk bits of being wiped down concentrate between pieces and the blackboard surface, and constantly free-falling, again owing to this blackboard eraser in use, along with firmly and the change of thrust direction, pieces can produce a reciprocal active force, and the chalk bits that this active force will accumulate between pieces and the blackboard eject, and dust is flown upward everywhere, pollute classroom environment, influence the healthy of teachers and students, for addressing this problem, have the people the blackboard eraser pieces around around one the circle soft-slab, chalk bits between pieces and the blackboard are moved backward, temporarily be stored in the blackboard eraser, though this method can alleviate dust, effect is undesirable.

Summary of the invention: at the bottom of the purpose of this utility model provides a kind of simple in structure, cost, can obviously alleviate dust from flying subtract the dirt blackboard eraser

The utility model can reach by following measure:

A kind of dirt blackboard eraser that subtracts, be provided with the blackboard eraser back of the body, the blackboard eraser back is provided with some groups of pieces, is provided with the rubber circle around the blackboard eraser back pieces, it is characterized in that respectively organizing pieces and be not vertical but be fixedly mounted on the blackboard eraser back obliquely along same direction, promptly respectively organize formation one acute angle between pieces and the blackboard eraser back of the body, directly influence it subtracts the dirt effect to the size of this acute angle, as angle too small, then influence its wiping effect, excessive as angle, then influence it and subtract the dirt effect, this acute angle is generally between 45 °-60 °.

During the utility model blackboard wiping, keep its pieces to be inclined upwardly, and blackboard eraser is moved up and down, because pieces is the angle of inclination with the blackboard plane and contact, thereby dust is easy to be wiped by pieces, and the dust under quilt is wiped will drop to storage temporarily in the rubber circle of blackboard eraser along the pieces direction, so have the advantage at the bottom of simple in structure, the cost, control flying upward of dust effectively, guaranteed the environmental sanitation in classroom, helped the healthy of Faculty and Students.

Description of drawings:

Accompanying drawing is a structural representation of the present utility model.

The specific embodiment: the utility model is further described below in conjunction with accompanying drawing:

As shown in the figure, a kind of dirt blackboard eraser that subtracts, be provided with the blackboard eraser back of the body 1, the blackboard eraser back is provided with some groups of pieces 2, be provided with rubber circle 3 around the blackboard eraser back pieces, it is characterized in that respectively organizing pieces and be not vertical but be fixedly mounted on the blackboard eraser back obliquely along same direction, promptly respectively organize formation one acute angle between pieces and the blackboard eraser back of the body, directly influence it subtracts the dirt effect to the size of this acute angle, as angle too small, then influence its wiping effect, excessive as angle, then influence it and subtract the dirt effect, this acute angle is generally between 45 °-60 °, when using the utility model blackboard wiping, keep its pieces to be inclined upwardly, and blackboard eraser is moved up and down, because pieces is the angle of inclination with the blackboard plane and contacts, thereby dust is easy to be wiped by pieces, wiped dust down and will be dropped to storage temporarily in the rubber circle of blackboard eraser, so have simple in structure along the pieces direction, advantage at the bottom of the cost has been controlled flying upward of dust effectively, guarantee the environmental sanitation in classroom, helped the healthy of Faculty and Students.

Claims

1, a kind of dirt blackboard eraser that subtracts is provided with the blackboard eraser back of the body, and the blackboard eraser back is provided with some groups of pieces, is provided with the rubber circle around the blackboard eraser back pieces, it is characterized in that respectively organizing pieces and is fixedly mounted on the blackboard eraser back obliquely along same direction.