CN201186566Y

CN201186566Y - Electric dust-free black-board eraser

Info

Publication number: CN201186566Y
Application number: CNU2008200665791U
Authority: CN
Inventors: 黄阳雪
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-21
Filing date: 2008-04-21
Publication date: 2009-01-28
Anticipated expiration: 2018-04-21

Abstract

A dust-free electric blackboard eraser is characterized in that the blackboard eraser is in the shape of a hollow box; a handle (6) is arranged on the back side of the eraser; two parallel cylindrical eraser rollers (2) are longitudinally arranged on the front side of the eraser; the medial shafts of the two eraser rollers (2) are respectively fixedly connected with an output shaft of a miniature motor (1) arranged in the box; a dustproof cover is arranged on both sides and above the eraser rollers (2); a dust collection box (5) is arranged below the eraser rollers (2); and the front end of the dust collection box (5) is a dust collection barrier (4) aligned to the outer side of the eraser rollers (2). The dust-free electric blackboard eraser can electrically erase chalk writings on a blackboard, and solves the problems caused by chalk powder bothering on-the-spot teachers for a long time.

Description

Electric dust-less blackboard is wiped

Technical field

The utility model relates to realia, is that a kind of electric dust-less blackboard is wiped specifically.

Background technology

Make the traditional frosted glass blackboard of mainly remaining of writing on the blackboard in the classroom at present, the frosted glass blackboard reflective light is little, absorption affinity to chalk is strong, but still be to use blackboard eraser to wipe writing, large tracts of land erases the board and can see dust four often and raise, and blackboard eraser rather effort of getting off, the writing that has firmly sticks to and is difficult on the blackboard wiping.Chalk dust kick up in air inevitably can by near the people suck in the lung, cause serious health problem for the teacher in the post of adhering to for a long time imparting knowledge to students at the scene.

Summary of the invention

The purpose of this utility model provides a kind ofly can easily wipe the writing on the blackboard and can collect the electric dust-less blackboard wiping of wiping chalk dust down and not making it to kick up automatically.

The feature that described electric dust-less blackboard is wiped is: blackboard eraser is that hollow is box-like, its back side is handle 6, the front parallel longitudinal is equipped with two cylindrical wiping rollers 2, two axis of wiping rollers 2 respectively be installed in box in the output shaft of micromachine 1 fixedly connected, the both sides and the top of wiping roller 2 are equipped with dust cover 3, the below of wiping roller 2 is equipped with dust-collecting box 5, the front end of dust-collecting box 5 be with wipe roller 2 outsides concordant connect dirt hurdle 4.

Micromachine 1 wherein can also can be powered by external power supply by the powered battery that is installed in the box.

The chalk writing of the utility model on can the electric erasing blackboard, and solved the on-the-spot teacher's of long-term puzzlement chalk dust problem.

Description of drawings

Fig. 1 is the utility model bottom surface structural representation,

Fig. 2 is the right view of Fig. 1.

Among the figure: the 1-micromachine, 2-wipes roller, and 3-dust cover, 4-connect the dirt hurdle, 5-dust-collecting box, 6-handle.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further specified: as shown in Fig. 1,2, it is that hollow is box-like that electric dust-less blackboard is wiped, its back side is handle 6, the front parallel longitudinal is equipped with two cylindrical wiping rollers 2, two axis of wiping roller 2 are fixed with the output shaft that is installed in the micromachine 1 in the box respectively, both sides and the top of wiping roller 2 are equipped with dust cover 3, and the below of wiping roller 2 is equipped with dust-collecting box 5, and the front end of dust-collecting box 5 is concordant with wiping roller 2 outsides dirt hurdles 4 that connect.

What the front that electric dust-less blackboard is wiped directly contacted blackboard is two described wiping rollers 2, with front end concordant with the outside of wiping roller 2 connect dirt hurdle 4, when work, wipe roller 2 fast rotational, two direction of rotation of wiping roller 2 are opposite, and on the tangent line of wiping roller 2 outsides and blackboard, two rotation directions of wiping roller 2 are pointed to two center lines of wiping between the roller 2 respectively.Therefore the dust under feasible the wiping flies to the centre of blackboard eraser, drops on then in the dust-collecting box 5 of below.The front end of dust-collecting box 5 is to connect dirt hurdle 4 with what soft material was made, contacts blackboard simultaneously with the outside of wiping roller 2, the dust that falls can be caught fully, and the dust cover 3 of wiping roller 2 both sides and top stops the dust of kicking up in a small amount of blackboard eraser.

String has an electric switch between micromachine 1 and the supply line, be installed on the handle of blackboard eraser back, open switch wiping roller 2 and just begin fast rotational, the writing on Jie Chu the blackboard is wiped down thereupon with it, can easily the dust in the dust-collecting box 5 be poured out after having wiped.

Claims

1. an electric dust-less blackboard is wiped, it is characterized in that: described blackboard eraser is that hollow is box-like, its back side is handle (6), the front parallel longitudinal is equipped with two cylindrical wiping rollers (2), two axis of wiping rollers (2) respectively be installed in box in the output shaft of micromachine (1) fixedly connected, both sides and the top of wiping roller (2) are equipped with dust cover (3), and the below of wiping roller (2) is equipped with dust-collecting box (5), the front end of dust-collecting box (5) be with wipe roller (2) outside the concordant dirt hurdle (4) that connects.