CN2203230Y - Dedusting blackboard eraser - Google Patents
Dedusting blackboard eraser Download PDFInfo
- Publication number
- CN2203230Y CN2203230Y CN 94206128 CN94206128U CN2203230Y CN 2203230 Y CN2203230 Y CN 2203230Y CN 94206128 CN94206128 CN 94206128 CN 94206128 U CN94206128 U CN 94206128U CN 2203230 Y CN2203230 Y CN 2203230Y
- Authority
- CN
- China
- Prior art keywords
- dust
- blackboard eraser
- dedusting
- utility
- removing blackboard
- 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
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a dedusting blackboard eraser used for erasing the blackboard written by using the chalk. The utility model is composed of a dedusting protecting skirt, a dedusting path, an air suction opening, a dust suction chamber and a dedusting chamber, can replace the traditional blackboard eraser and eliminate the harm of the human body caused by the dust.
Description
The utility model is a dust-removing blackboard eraser.
Be used for the blackboard that the crocus pen is write, can remove the dust-removing blackboard eraser of chalk dust effectively.
The ordinary blackboard eraser chalk dust when erasing the board that uses flies upward everywhere to the space at present, serious harm teacher healthy, though large-scale automatic black blackboard eraser is arranged, but the blackboard content written is all wiped when erasing the board, can't keep local content, this dust-removing blackboard eraser has overcome above-mentioned shortcoming, can arbitrarily use.
The purpose of the utility model provides a kind of dust-removing blackboard eraser that can eliminate chalk dust, eliminates the harm of dust to human body.
The dedusting effect has dedusting to protect skirt around being achieved in that the blackboard eraser front, and there are several felt wiping, dedusting road in the middle part.This dust-removing blackboard eraser is when erasing the board back and forth, and the dust under wiping is protected skirt and blocks, and can not fly upward to the space, fall along the dedusting road, be admitted to dirt pocket after air suction opening sucks dust suction chamber by electric fan, dust is filtered the gas interception in dirt pocket, and air then can be discharged by filter gas.
This dust-removing blackboard eraser is easy to use, can alleviate the harm of dust to human body effectively.
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the dust-removing blackboard eraser front view.
Fig. 2 is the dust-removing blackboard eraser reverse view.
Fig. 3 is the dust-removing blackboard eraser cutaway view.
With reference to accompanying drawing: Fig. 1, Fig. 3, there is dedusting to protect skirt (1) around the dust-removing blackboard eraser front, air suction opening (3) is arranged at bottom, dedusting road (2), between be separated with several felts and wipe (4), the dust-removing blackboard eraser reverse side is equipped with small-sized DC motor (13) and drives fan (8) and dust was taken out air suction opening (3) enter dust suction chamber (11) among Fig. 4, send into dirt pocket (5) by kuppe (9), dust is filtered gas (6), graticule mesh (7) interception is in dirt pocket (5), dividing plate (9) separates dust suction chamber (11) and dirt pocket (5), there is case (12) outside, can open case when dust amasss completely topples over, motor (13) is controlled by switch (14), two No. 5 batteries of joint (15) are power supply, and a charging plug is arranged at the blackboard eraser top.
This dust-removing blackboard eraser is simple and easy dust-removing blackboard eraser during without the electrical dust-removing device, and dust can drop on dedusting along the dedusting road and protect the skirt bottom when erasing the board, and topples over dust and get final product.
Claims (2)
1, a kind of dust-removing blackboard eraser that is used for a crocus writing blackboard, the utility model feature have dedusting to protect skirt (1) around being, air suction opening (3) is arranged at bottom, dedusting road (2).The dust arrester that the back side has electric fan (8), dust suction chamber (11), dirt pocket (5), filter gas (6) to constitute.
2,, it is characterized in that the front has several felt to wipe (4) and is spaced with dedusting road (2) according to claims 1 described dust-removing blackboard eraser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94206128 CN2203230Y (en) | 1994-02-25 | 1994-02-25 | Dedusting blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94206128 CN2203230Y (en) | 1994-02-25 | 1994-02-25 | Dedusting blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2203230Y true CN2203230Y (en) | 1995-07-12 |
Family
ID=33824846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94206128 Expired - Fee Related CN2203230Y (en) | 1994-02-25 | 1994-02-25 | Dedusting blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2203230Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669891A (en) * | 2015-02-06 | 2015-06-03 | 上海理工大学 | Convenient blackboard eraser |
-
1994
- 1994-02-25 CN CN 94206128 patent/CN2203230Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669891A (en) * | 2015-02-06 | 2015-06-03 | 上海理工大学 | Convenient blackboard eraser |
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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 |