CN2740429Y - Dustproof blackboard sponge - Google Patents
Dustproof blackboard sponge Download PDFInfo
- Publication number
- CN2740429Y CN2740429Y CN 200420110283 CN200420110283U CN2740429Y CN 2740429 Y CN2740429 Y CN 2740429Y CN 200420110283 CN200420110283 CN 200420110283 CN 200420110283 U CN200420110283 U CN 200420110283U CN 2740429 Y CN2740429 Y CN 2740429Y
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- blackboard
- utility
- model
- 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
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Abstract
The utility model provides a dustproof blackboard eraser, comprising a blackboard eraser (1), an upper baffle (2), a lower baffle (3) and an ash collection bag (4); wherein, the upper baffle (2) and the lower baffle (3) are arranged at the both ends of the blackboard eraser (1). The utility model is made by transparent material so that when in use, the dustproof blackboard sponge cannot influence sight and also can block off chalk dust. The ash collection bag (4) is connected at the lower part of the blackboard eraser (1) and the other end of the ash collection bag (4) is connected with the lower baffle (3), so when the blackboard eraser (1) moves and wipe ash on the blackboard, the dust just falls into the ash collection bag (4) to gather the dust and when gathered, more the dust is centralized to be treated. The dustproof blackboard sponge the utility model provides has the advantages of simple structure and easy use, and better prevents air pollution to keep surrounding environmental sanitation and is favorable for the health of teachers and students.
Description
Technical field:
The utility model relates to a kind of dust-proof blackboard eraser, belongs to teaching aid.
Background technology:
The blackboard eraser that uses in imparting knowledge to students at present, when erasing the board, dust flies upward easily, has chalk dust and fly upward with general blackboard eraser the time, sucks in the lung when teacher or front-seat student are breathed, and is harmful to health, and also is unfavorable for environmental sanitation simultaneously.
Summary of the invention:
In order to overcome the shortcoming that above-mentioned prior art exists, the purpose of this utility model provides a kind of chalk powder that can prevent and flies upward and can collect the dust-proof blackboard eraser of dust.
The dust-proof blackboard eraser that the utility model provides, comprise blackboard eraser, overhead gage, lower baffle plate and dust stratification bag, at the two ends of blackboard eraser overhead gage and lower baffle plate are housed, make by transparent material, do not influence sight line in use, can block chalk dust again, connecting a dust stratification bag in the lower end of blackboard eraser, the other end of dust stratification bag links to each other with lower baffle plate, and when blackboard eraser moved the wiping ash on blackboard, dust was taken advantage of a situation and fallen into the dust stratification bag.
The dust-proof blackboard eraser that the utility model provides, simple in structure, easy to use, prevented air pollution preferably, keep the surrounding environment health, be beneficial to the healthy of teachers and students again.
Below, describe details and working condition in conjunction with the accompanying drawings and embodiments in detail according to the concrete device that the utility model proposes.
Description of drawings:
Fig. 1, structural representation of the present utility model
The specific embodiment:
The dust-proof blackboard eraser that the utility model provides, comprise blackboard eraser 1, overhead gage 2, lower baffle plate 3 and dust stratification bag 4 as shown in Figure 1, overhead gage 2 and lower baffle plate 3 are housed at the two ends of blackboard eraser 1, make by transparent material, do not influence sight line in use, can block chalk dust again, connecting a dust stratification bag 4 in the lower end of blackboard eraser 1, the other end of dust stratification bag 4 links to each other with lower baffle plate 3, when blackboard eraser 1 moves the wiping ash on blackboard, dust is taken advantage of a situation and is fallen into dust stratification bag 4, and dust stratification bag 4 can gather dust, treats that quantity focuses on more for a long time.
Claims (1)
1, a kind of dust-proof blackboard eraser, it is characterized in that this dust-proof blackboard eraser comprises blackboard eraser (1), overhead gage (2), lower baffle plate (3) and dust stratification bag (4), overhead gage (2) and lower baffle plate (3) are housed at the two ends of blackboard eraser (1), connecting a dust stratification bag (4) in the lower end of blackboard eraser (1), the other end of dust stratification bag (4) is connected with lower baffle plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110283 CN2740429Y (en) | 2004-11-24 | 2004-11-24 | Dustproof blackboard sponge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110283 CN2740429Y (en) | 2004-11-24 | 2004-11-24 | Dustproof blackboard sponge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2740429Y true CN2740429Y (en) | 2005-11-16 |
Family
ID=35350727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420110283 Expired - Fee Related CN2740429Y (en) | 2004-11-24 | 2004-11-24 | Dustproof blackboard sponge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2740429Y (en) |
-
2004
- 2004-11-24 CN CN 200420110283 patent/CN2740429Y/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 |