CN2681916Y - Electric blackboard eraser - Google Patents
Electric blackboard eraser Download PDFInfo
- Publication number
- CN2681916Y CN2681916Y CN 200420039232 CN200420039232U CN2681916Y CN 2681916 Y CN2681916 Y CN 2681916Y CN 200420039232 CN200420039232 CN 200420039232 CN 200420039232 U CN200420039232 U CN 200420039232U CN 2681916 Y CN2681916 Y CN 2681916Y
- Authority
- CN
- China
- Prior art keywords
- dust absorption
- dust
- matrix
- blackboard eraser
- base plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 claims abstract description 30
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 239000011159 matrix material Substances 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
Images
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a teaching aid, specifically speaking are electronic blackboard eraser, and it is equipped with base member, bottom plate, is equipped with the brush hair on the bottom plate or is the felt, and the characteristic is equipped with the dust absorption hole on the bottom plate, is equipped with dust absorption passageway and dust absorption interface on the base member, and the one end of dust absorption pipe is connected with the dust absorption interface, and the other end is connected with electronic dust catcher, and electronic dust catcher's control switch establishes on the base member, has advantages such as simple structure, with low costs, convenient to use dust absorption effect are good, is an ideal teaching aid.
Description
Technical field
The utility model relates to teaching appliance, specifically electric blackboard eraser.
Background technology
As everyone knows, the blackboard eraser that in teaching, uses at present, it is provided with matrix, base plate, matrix and base plate are bonded as one, base plate is provided with bristle or is provided with felt, and the blackboard eraser that has also is provided with handle on matrix, when with blackboard eraser the chalk writing on the blackboard being wiped, the dust of wiping flies upward everywhere, has a strong impact on the cleaning of the healthy and clothing of Faculty and Students.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, use is flexible, easy to carry, cost is low electric blackboard eraser.
The utility model can reach by following measure:
A kind of electric blackboard eraser, be provided with matrix, base plate, base plate is provided with bristle (felt), it is characterized in that base plate is provided with air suction opening, matrix is provided with dust absorption passage and dust suction interface, one end of sweep-up pipe is connected with the dust suction interface, and the other end is connected with electric dust collector, and the gauge tap of electric dust collector is located on the matrix.
The utility model has advantages such as simple in structure, that cost is low, pick-up performance easy to use is good owing to adopt said structure, is a kind of desirable teaching appliance.
Description of drawings
Accompanying drawing is a structural representation of the present utility model, also is the structural representation of a kind of embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As shown in drawings, a kind of electric blackboard eraser, be provided with matrix 1, base plate 2, matrix 1 and base plate 2 can be one, base plate 2 is provided with bristle 3, bristle 3 can adopt felt to replace, base plate 2 is provided with air suction opening, matrix 1 is provided with dust absorption passage and dust suction interface 4, one end of sweep-up pipe 5 is connected with dust suction interface 4, the other end is connected with electric dust collector 6, the gauge tap 7 of electric dust collector 6 is located on the matrix 1, when needs erase the board, open the electric dust collector gauge tap 7 that is located on the matrix 1, electric dust collector 6 work, writing on hand-held the utility model erases the board, this moment letter written with chalk the air suction opening of dust on base plate 2, dust absorption passage on the matrix 1, dust suction interface 4 on the matrix 1, sweep-up pipe 5 enters in the electric dust collector 6, to reach the non-dusting purpose that erases the board, has simple in structure, cost is low, advantages such as pick-up performance easy to use is good.
Claims (1)
1, a kind of electric blackboard eraser, be provided with matrix, base plate, base plate is provided with bristle or felt, it is characterized in that base plate is provided with air suction opening, matrix is provided with dust absorption passage and dust suction interface, one end of sweep-up pipe is connected with the dust suction interface, and the other end is connected with electric dust collector, and the gauge tap of electric dust collector is located on the matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420039232 CN2681916Y (en) | 2004-03-15 | 2004-03-15 | Electric blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420039232 CN2681916Y (en) | 2004-03-15 | 2004-03-15 | Electric blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2681916Y true CN2681916Y (en) | 2005-03-02 |
Family
ID=34607764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420039232 Expired - Fee Related CN2681916Y (en) | 2004-03-15 | 2004-03-15 | Electric blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2681916Y (en) |
-
2004
- 2004-03-15 CN CN 200420039232 patent/CN2681916Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |