CN202557125U

CN202557125U - Convenient blackboard eraser

Info

Publication number: CN202557125U
Application number: CN2012201615353U
Authority: CN
Inventors: 姜梦尧
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-17
Filing date: 2012-04-17
Publication date: 2012-11-28
Anticipated expiration: 2022-04-17

Abstract

The utility model relates to a convenient blackboard eraser, belongs to a teaching aid, and mainly solves the problem that the dust flies when the traditional blackboard eraser is used. The structure of the blackboard eraser comprises a blackboard eraser body composed of a dedusting wool strip and a base, wherein the upper surface of the base is provided with a cavity with the opening upper part and closed other surfaces; the opening of the cavity and a brush base with a through hole are moveably buckled; the upper surface of the brushing base is provided with the dedusting wool strip; and the dedusting wool strip is communicated with the cavity through the through hole. The blackboard eraser provided by the utility model solves the technical problems that the dust flies, the hand part skin is damaged, the physical and psychological health of teachers and students is damaged, and the use is more convenient.

Description

A kind of convenient blackboard eraser

Technical field

The utility model relates to a kind of teaching aid, specifically is a kind of convenient blackboard eraser.

Background technology

Class hour on to the student, teacher can erase the board every now and then, following class hour; The student on duty classmate also will erase the board, and traditional blackboard eraser adopts the bristle of hard to process more, and not only the blackboard eraser examination is unclean; And the chalk powder under wiping also can drop on teacher and classmates on hand and on one's body, especially when dry, the dust that flies upward also can be inhaled in the lung; Because the specific physical performance of chalk; This can cause very big injury to health, and the pneumoconiosis and the various acute and chronic breathing problem that cause like dust are to the influence of air quality and pass through and send out myopia etc.; Because the blackboard eraser volume is little, puts on the table conveniently after the use and also lose easily in addition, influence is used next time.

The utility model content

The purpose of the utility model is to provide a kind of convenient blackboard eraser, and this blackboard eraser can effectively prevent harm that dust from flying causes human body and to the function of the pollution of environment.

The technical scheme that its technical problem of the utility model solution is taked is: a kind of convenient blackboard eraser; Its structure comprises the blackboard eraser body that is made up of dedusting sliver and base; The cavity of all the other face closures of opening on base upper surface is provided with; The opening of cavity with have the hair brush base active buckle of through hole, be provided with the dedusting sliver at the upper surface of hair brush base, described dedusting sliver via through holes communicates with cavity.

The beneficial effect of the utility model is: before the use, take off sliver, water filling in the cavity above base; Then hair brush base is correctly loaded onto, dedusting this moment sliver is through the water in the through hole absorption cavity and make it to keep moistening, when erasing the board; Hold base; The dedusting sliver is contacted with waiting the blackboard surface of wiping examination, and this moment, mobile blackboard was wiped base, and sliver touches chalk writing on the blackboard and blackboard eraser is clean; Solve traditional blackboard and wiped dust from flying when using, infringement hand skin, the able-bodied technical problem of harm Faculty and Students.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Among the figure: 1 dedusting sliver, 2 cavitys, 3 bases, 4 through holes, 5 hair brush bases.

The specific embodiment

As shown in Figure 1.A kind of convenient blackboard eraser; Its structure comprises the blackboard eraser body that is made up of dedusting sliver 1 and base 3; The cavity 2 of all the other face closures of opening on base 3 upper surfaces are provided with; The opening of cavity 2 with have hair brush base 5 active buckles of through hole 4, be provided with dedusting sliver 1 at the upper surface of hair brush base 5, described dedusting sliver 1 via through holes 4 communicates with cavity 2.

Before the use, take off the hair brush base 5 of band dedusting sliver 1, water filling in the cavity 2 above base 3; Then hair brush base 5 is correctly loaded onto, dedusting this moment sliver 1 is through the water in the through hole 4 absorption cavitys 2 and make it to keep moistening, when erasing the board; Hold base 3; Dedusting sliver 1 is contacted with waiting the blackboard surface of wiping examination, and this moment, mobile blackboard was wiped base, and sliver touches chalk writing on the blackboard and blackboard eraser is clean; Solve traditional blackboard and wiped dust from flying when using, infringement hand skin, the able-bodied technical problem of harm Faculty and Students.

Claims

1. convenient blackboard eraser; Comprise the blackboard eraser body that constitutes by dedusting sliver and base; It is characterized in that the cavity of all the other face closures of opening on base upper surface is provided with, the opening of cavity and the hair brush base active buckle that has through hole; Upper surface at hair brush base is provided with the dedusting sliver, and described dedusting sliver via through holes communicates with cavity.