CN215970867U

CN215970867U - Dust-absorbing blackboard eraser

Info

Publication number: CN215970867U
Application number: CN202122675531.9U
Authority: CN
Inventors: 熊博昌; 周静
Original assignee: Hubei Engineering Institute
Current assignee: Hubei Engineering Institute
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-03-08
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a novel dust-absorbing blackboard eraser which comprises a blackboard eraser body, wherein a front scraping plate is arranged at the front end part of the blackboard eraser body, a plurality of adhesive rollers and a brush plate are arranged on the bottom surface of the blackboard eraser body, a supporting plate is arranged on the bottom surface of the rear end part of the blackboard eraser body, a plurality of air suction pipes are fixedly arranged on the supporting plate and are arranged in a groove, a small-sized suction fan is fixedly arranged at the rear end part of the blackboard eraser body, and a dust collecting bag is connected to the small-sized suction fan. The accumulated dust blocks can be scattered by a front scraper at the front end part of the blackboard eraser body, then part of dust can be attached through a cotton yarn layer on the surface of the adhesive roller, and the other part of dust is brushed away through the brush plate; adhesion roller and brush board staggered arrangement parallel arrangement for cubic dust is brushed scattered by the brush board, and the dust of scattering can effectively be attached to on the cotton yarn layer on adhesion roller top layer, cooperates small-size suction fan, avoids the blackboard eraser to clean a large amount of dust in the dust in-process and wafts at will.

Description

Dust-absorbing blackboard eraser

Technical Field

The utility model relates to the field of teaching aids, in particular to a novel dust-absorbing blackboard eraser.

Background

Most teaching methods adopt a blackboard and chalk for teaching so as to write characters or draw patterns, the traditional blackboard eraser is made of rag or cotton fabric, and the phenomena that the eraser is not clean and dust flies in classrooms can be brought out by the traditional erasing method. The dust has strong adsorbability, which brings many adverse effects. This can have respiratory health effects on teachers working for a long time and students in class.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a novel dust-absorbing blackboard eraser.

The utility model provides the following technical scheme:

the utility model provides a novel dust-absorbing blackboard eraser which comprises a blackboard eraser body, wherein a front scraping plate is arranged at the front end part of the blackboard eraser body, a plurality of adhesive rollers and a plurality of brush plates are arranged on the bottom surface of the blackboard eraser body in a staggered and parallel mode, a supporting plate is arranged on the bottom surface of the rear end part of the blackboard eraser body, a notch is further formed in the bottom surface of the rear end part of the blackboard eraser body, a plurality of air suction pipes are fixedly arranged on the supporting plate and are arranged in the notch, a small-sized suction fan is fixedly arranged at the rear end part of the blackboard eraser body, and a dust collecting bag is connected to the small-sized suction fan.

As a preferred technical scheme of the utility model, the two side edges of the blackboard eraser body are provided with handle grooves.

In a preferred embodiment of the present invention, a cotton yarn layer is disposed on a surface of the adhesion roller.

As a preferred technical scheme of the utility model, the air suction pipe passes through a notch in the bottom surface of the rear end of the blackboard eraser body and then is communicated with the small-sized suction fan.

Compared with the prior art, the utility model has the following beneficial effects:

the accumulated dust blocks can be scattered by a front scraper at the front end part of the blackboard eraser body, then part of dust can be attached through a cotton yarn layer on the surface of the adhesive roller, and the other part of dust is brushed away through the brush plate; adhesion roller and brush board staggered arrangement parallel arrangement for cubic dust is brushed scattered by the brush board, and the dust of scattering can effectively be attached to on the cotton yarn layer on adhesion roller top layer, cooperates small-size suction fan, avoids the blackboard eraser to clean a large amount of dust in the dust in-process and wafts at will.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a block diagram of the present invention;

in the figure: 1. a blackboard eraser body; 2. a front squeegee; 3. an adhesive roller; 4. a brush plate; 5. a support plate; 6. a notch; 7. an air suction pipe; 8. a small suction fan; 9. a dust collecting bag.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation. Wherein like reference numerals refer to like parts throughout.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1

As shown in fig. 1, the utility model provides a novel dust-absorbing blackboard eraser, which comprises a blackboard eraser body 1, wherein a front scraping plate 2 is arranged at the front end part of the blackboard eraser body 1, a plurality of adhesion rollers 3 and brush plates 4 are arranged on the bottom surface of the blackboard eraser body 1 in a staggered and parallel manner, a supporting plate 5 is arranged on the bottom surface of the rear end part of the blackboard eraser body 1, a notch 6 is further arranged on the bottom surface of the rear end part of the blackboard eraser body 1, a plurality of suction pipes 7 are fixedly arranged on the supporting plate 5, the suction pipes 7 are arranged in the notch 6, a small suction fan 8 is fixedly arranged at the rear end part of the blackboard eraser body 1, and a dust collecting bag 9 is connected on the small suction fan 8.

Both sides of the blackboard eraser body 1 are provided with handle grooves.

The surface of the adhesive roll 3 is provided with a cotton yarn layer.

The air suction pipe 7 is communicated with the small-sized suction fan 8 after passing through the notch 6 in the bottom surface of the rear end of the blackboard eraser body 1.

Further, the structural principle of the device is as follows:

through 1 both sides handle groove of hand blackboard eraser body, with blackboard eraser body 1 slip on the blackboard, the slip in-process, accumulational dust piece on the blackboard can be scraped out by the preceding scraper blade 2 of 1 front end of blackboard eraser body, then some dust can be attached to through the cotton yarn layer on adhesion roller 3 surface, another part dust is brushed off through brush board 4, simultaneously small-size suction fan 8 work, inhale the dust through dust bag 9 through aspiration channel 7 and collect, a small amount of dust can be attached to on the inner wall of notch 6, adhesion roller 3 and brush board 4 staggered arrangement parallel arrangement, make cubic dust brush out by brush board 4, and the dust that scatters can effectively attach to on the cotton yarn layer on adhesion roller 3 top layer, cooperate small-size suction fan 8, avoid the blackboard eraser to clean a large amount of dust in-process and fly away at will.

The accumulated dust blocks can be scattered by a front scraping plate 2 at the front end part of a blackboard eraser body 1, then part of dust can be attached through a cotton yarn layer on the surface of an adhesive roller 3, and the other part of dust is brushed away through a brush plate 4; adhesion roller 3 and brush board 4 staggered arrangement parallel arrangement for cubic dust is brushed away by brush board 4, and the dust of scattering can effectively be attached to the cotton yarn layer on 3 top layers of adhesion roller, cooperates small-size suction fan 8, avoids the blackboard eraser to clean a large amount of dust and wafts at will in the dust in-process.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel dust-absorbing blackboard eraser is characterized by comprising a blackboard eraser body (1), a front scraping plate (2) is arranged at the front end part of the blackboard eraser body (1), a plurality of adhesive rollers (3) and a brush plate (4) are arranged on the bottom surface of the blackboard eraser body (1), the adhesive roller (3) and the brush plate (4) are arranged in parallel in a staggered way on the bottom surface of the blackboard eraser body (1), a supporting plate (5) is arranged on the bottom surface of the rear end part of the blackboard eraser body (1), a notch (6) is also arranged on the bottom surface of the rear end part of the blackboard eraser body (1), a plurality of air suction pipes (7) are fixedly arranged on the supporting plate (5), and the suction pipes (7) are arranged in the notches (6), the rear end part of the blackboard eraser body (1) is fixedly provided with a small suction fan (8), and the small suction fan (8) is connected with a dust collection bag (9).

2. The novel dust-absorbing blackboard eraser as claimed in claim 1, wherein both sides of the blackboard eraser body (1) are provided with handle grooves.

3. The new blackboard eraser with dust absorption according to claim 1, characterized in that the surface of the adhesive roller (3) is provided with a cotton yarn layer.

4. The novel dust-absorbing blackboard eraser as claimed in claim 1, wherein the air suction pipe (7) is communicated with the small-sized suction fan (8) after passing through the notch (6) in the bottom surface of the rear end of the blackboard eraser body (1).