CN201124694Y - Environment-friendly blackboard eraser - Google Patents
Environment-friendly blackboard eraser Download PDFInfo
- Publication number
- CN201124694Y CN201124694Y CNU2007200166106U CN200720016610U CN201124694Y CN 201124694 Y CN201124694 Y CN 201124694Y CN U2007200166106 U CNU2007200166106 U CN U2007200166106U CN 200720016610 U CN200720016610 U CN 200720016610U CN 201124694 Y CN201124694 Y CN 201124694Y
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- dust
- negative
- base plate
- pressure chamber
- 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 27
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides an environment-friendly blackboard eraser which comprises a blackboard eraser base plate and bristles arranged on the bottom surface of the blackboard eraser base plate. The utility model is characterized in that the blackboard eraser further comprises a negative-pressure chamber; the blackboard eraser base plate is inserted in a lock slot in the lower part of the negative-pressure chamber so that a dedusting port formed on the blackboard eraser base plate communicates with a dust-collecting port formed on the negative-pressure chamber; a mini motor and a battery pack used for providing the power supply for the mini motor are arranged in the negative-pressure chamber; the output shaft of the mini motor is sleeved in fan blades which face right towards the dust-collecting port; a dust storing box is also arranged inside the negative-pressure chamber; a dust-collecting inlet port is opened between the dust storing box and the dust-collecting port inside the negative-pressure chamber; a handle is arranged on the top of the negative-pressure chamber; and a switch is arranged at the site of the handle. Based on the principle of negative pressure dust absorption, the blackboard eraser can collect chalk dust in the dust bag, thereby improving the environment in the classroom and protecting the health of teachers and students.
Description
Technical field
The utility model relates to a kind of blackboard eraser, particularly relates to a kind of environment protection-type blackboard eraser, is to the improvement of existing wiping blackboard structure, belongs to the school supply and stationery category.
Background technology
At present, the used blackboard eraser of people is normal style: inlay a body brush on the rectangle plank, when erasing the board, chalk dust flies upward everywhere, has promptly polluted the environment in the classroom, again the healthy of academics and students is damaged to some extent.
The utility model content
The purpose of this utility model is to overcome the prior art above shortcomings, by improvement to existing wiping blackboard structure, provide a kind of environment protection-type blackboard eraser, this novel blackboard eraser adopts negative pressure dust suction principle, chalk dust can be drawn onto in the dust bag, thereby improved the environment in the classroom, healthy useful to the academics and students.
This environment protection-type blackboard eraser that the utility model provides, include the blackboard eraser base plate, the bottom surface of blackboard eraser base plate is provided with snag, be characterized in also including in the described blackboard eraser vacuum cavity, the blackboard eraser base plate inserts in the draw-in groove of vacuum cavity bottom, the dedusting mouth that the blackboard eraser base plate is provided with communicates with the suction port that vacuum cavity is provided with, the inside of vacuum cavity is provided with micromotor and supplies with the battery pack of miniature electric mechanomotive force, be with fan blade on the output shaft of micromotor, fan blade faces suction port, the inside of vacuum cavity also is provided with the dust suction storage box, this dust suction storage box with, be provided with the dust suction box-inlet between the suction port in the vacuum cavity, the top of vacuum cavity is provided with handle, and the handle place is provided with switch.
Compared with prior art, the beneficial effects of the utility model are: adopt negative pressure dust suction principle, chalk dust can be drawn onto in the dust suction storage box, except that the writing on the blackboard of wiping chalk, also have hygienic environment-protecting, time saving and energy saving, characteristics that the dust suction performance is good and easy to use.
Description of drawings
Fig. 1 provides the front view of embodiment for the utility model;
Fig. 2 is the left view of Fig. 1; Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the structural representation (having omitted micromotor and fan blade) of the vacuum cavity of Fig. 1;
Fig. 5 is the structural representation of the blackboard eraser base plate of Fig. 1.
The specific embodiment
As Fig. 1～shown in Figure 5, this environment protection-type blackboard eraser, form by blackboard eraser base plate 7 and vacuum cavity 6, the bottom surface of blackboard eraser base plate 7 is provided with snag 9, blackboard eraser base plate 7 inserts in the draw-in groove of vacuum cavity 6 bottoms, the dedusting mouth 8 that blackboard eraser base plate 7 is provided with communicates with the suction port 5 that vacuum cavity 6 is provided with, the inside of vacuum cavity 6 is provided with micromotor and supplies with the battery pack 3 of miniature electric mechanomotive force, be with fan blade on the output shaft of micromotor, fan blade faces suction port 5, the inside of vacuum cavity 6 also is provided with the dust suction storage box 4 that can extract out, be provided with the dust suction box-inlet between the suction port 5 in this dust suction storage box 4 and the vacuum cavity 6, the top of vacuum cavity 6 is provided with handle 2, and handle 2 places are provided with switch 1.
When wiping word at ordinary times, holding handle 2 touch the letter written with chalk place with snag 9 writing is wiped, Push switch 1, connect power supply, the micromotor output shaft drives fan blade and rotates together, makes the inside of vacuum cavity 6 form negative pressure, by suction port 5 chalk dust is sucked in the dust suction storage box 4, when the dust collection many time, extract dust suction storage box 4 out, wait to reuse after pouring out dust.
Claims (1)
1. environment protection-type blackboard eraser, include the blackboard eraser base plate, the bottom surface of blackboard eraser base plate is provided with snag, it is characterized in that also including in the described blackboard eraser vacuum cavity, the blackboard eraser base plate inserts in the draw-in groove of vacuum cavity bottom, the dedusting mouth that the blackboard eraser base plate is provided with communicates with the suction port that vacuum cavity is provided with, the inside of vacuum cavity is provided with micromotor and supplies with the battery pack of miniature electric mechanomotive force, be with fan blade on the output shaft of micromotor, fan blade faces suction port, the inside of vacuum cavity also is provided with the dust suction storage box, this dust suction storage box with, be provided with the dust suction box-inlet between the suction port in the vacuum cavity, the top of vacuum cavity is provided with handle, and the handle place is provided with switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200166106U CN201124694Y (en) | 2007-12-10 | 2007-12-10 | Environment-friendly blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200166106U CN201124694Y (en) | 2007-12-10 | 2007-12-10 | Environment-friendly blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201124694Y true CN201124694Y (en) | 2008-10-01 |
Family
ID=39998109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200166106U Expired - Fee Related CN201124694Y (en) | 2007-12-10 | 2007-12-10 | Environment-friendly blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201124694Y (en) |
-
2007
- 2007-12-10 CN CNU2007200166106U patent/CN201124694Y/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 |