CN202463377U - Dust-free blackboard eraser - Google Patents
Dust-free blackboard eraser Download PDFInfo
- Publication number
- CN202463377U CN202463377U CN2012200654613U CN201220065461U CN202463377U CN 202463377 U CN202463377 U CN 202463377U CN 2012200654613 U CN2012200654613 U CN 2012200654613U CN 201220065461 U CN201220065461 U CN 201220065461U CN 202463377 U CN202463377 U CN 202463377U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- dust
- main body
- eraser main
- hairbrush
- 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 discloses a dust-free blackboard eraser, which comprises a blackboard eraser main body and a hairbrush, wherein a battery, a motor and a fan are arranged at one side inside the blackboard eraser main body and are electrically connected in sequence; a switch is arranged at one side of the blackboard eraser main body and is electrically connected with the battery; a dust storage bin is arranged at the other side inside the blackboard eraser main body; the hairbrush is arranged in the middle of the bottom surface of the blackboard eraser main body; and a plurality of dust absorption holes are formed at the periphery of the bottom surface of the blackboard eraser main body. The blackboard eraser can absorb over 98 percent of dust in the process of erasing the blackboard, and the environmental pollution is effectively avoided.
Description
Technical field
The utility model relates to a kind of blackboard eraser, relates in particular to a kind of dust-free black board eraser.
Background technology
Chalk is the instrument that widely uses in the daily life, generally is used for book and writes on the blackboard.Now, the chalk of domestic use is mainly common chalk, and its main component is calcium carbonate and calcium sulfate, or contains a spot of calcium oxide and be not easy to be decomposed, and particle is bigger than dust.
The teacher often needs on blackboard, to write, draw and explain.In a class of 45 to 50 minutes, will erasable several, following class hour is often on hand, on the sleeve, even all stay one deck white chalk dust on the hair, shoulder.Like this everyday, year after year, work after 20 to 30 years, worn down ten hundreds of chalks.Dust pollution, inspiration tracheae and suffer from chronic illness are very huge to teacher's harm.
Dust-free chalk belongs to the improvement product of common chalk, is intended to eliminate the classroom chalk dust and pollutes.It just in common chalk, adds the grease class or the polyalcohols material is made binding agent; Add the bigger filler of proportion again; As clay, marl, cement etc., the proportion of chalk dust and volume are all increased; Be difficult for dispersing, but in practical application, it is not fairly obvious to the reduction effect that chalk dust pollutes.
Summary of the invention
The utility model technical problem to be solved provides a kind of dust-free black board eraser, when erasing the board, can absorb chalk dust, and effectively solution is flown upward the pollution that causes everywhere because of chalk dust.
For the technical problem that solves the problems of the technologies described above the utility model realizes through following technical scheme:
A kind of dust-free black board eraser comprises blackboard eraser main body and hairbrush,
Said blackboard eraser body interior one side is provided with battery, motor and fan, and said battery, motor and fan are electrically connected successively,
One side of said blackboard eraser main body is provided with switch, and said switch is electrically connected with said battery,
Said blackboard eraser body interior opposite side is provided with dust storehouse,
The centre of said blackboard eraser main body bottom surface is provided with said hairbrush, is provided with a plurality of air suction openings around the said blackboard eraser main body bottom surface.
Further,
The material of said hairbrush is a wool felt.
The material of said blackboard eraser main body is the ABS engineering plastics.
With respect to prior art, the characteristics of the utility model are following:
The blackboard eraser of the utility model can inspiration when wiping blackboard the dust 98% or more, effectively avoid environmental pollution, greatly changed the sanitation and hygiene inside and outside the classroom, useful teachers and students healthy and created a good teaching environment to them.
Description of drawings
Fig. 1 is the utility model dust-free black board eraser structural representation;
Fig. 2 is the utility model dust-free black board eraser bottom surface structural representation.
Reference numeral among the figure:
Blackboard eraser main body 1, hairbrush 2, battery 3, motor 4, fan 5, switch 6, dust storehouse 7, air suction opening 8.
The specific embodiment
Below in conjunction with embodiment the utility model is further described.
As shown in Figure 1; A kind of dust-free black board eraser comprises blackboard eraser main body 1 and hairbrush 2, and said blackboard eraser main body 1 an inner side is provided with battery 3, motor 4 and fan 5; Said battery 3, motor 4 and fan 5 adopt electrical connection successively; One side of said blackboard eraser main body 1 is provided with switch 6, and said switch 6 is electrically connected with said battery 3, and said blackboard eraser main body 1 inner opposite side is provided with dust storehouse 7.
As shown in Figure 2, the centre of said blackboard eraser main body 1 bottom surface is provided with said hairbrush 2, is provided with a plurality of air suction openings 8 around said blackboard eraser main body 1 bottom surface.
During use, hairbrush 2 is the wiping chalk dust on blackboard, presses switch 6 simultaneously, and fan 5 is started working, and the chalk dust that 2 wipings of hairbrush are got off sucks in the dust storehouse 7 through air suction opening 8.Use it that teachers and students are wiped clean letter written with chalk easily, and can not produce fulsome chalk dust, greatly changed the inside and outside sanitation and hygiene in classroom, useful teachers and students healthy and created a good teaching environment to them.
The material of said blackboard eraser main body 1 is the ABS engineering plastics, and is very light, and firm and durable is difficult for breaking.The material of said hairbrush 2 is wool felt, and is durable in use, and it is remarkable to wipe effect, and changes easily.
Said blackboard eraser main body 1 bottom surface is a rectangle, and concrete size can be 8cm * 18cm.
Undoubtedly, the utility model can also have multiple conversion and remodeling, is not limited to the concrete structure of above-mentioned embodiment.In a word, the protection domain of the utility model should comprise those conspicuous to those skilled in the art conversion or substitute and remodeling.
Claims (3)
1. a dust-free black board eraser comprises blackboard eraser main body and hairbrush, it is characterized in that:
Said blackboard eraser body interior one side is provided with battery, motor and fan, and said battery, motor and fan are electrically connected successively,
One side of said blackboard eraser main body is provided with switch, and said switch is electrically connected with said battery,
Said blackboard eraser body interior opposite side is provided with dust storehouse,
The centre of said blackboard eraser main body bottom surface is provided with said hairbrush, is provided with a plurality of air suction openings around the said blackboard eraser main body bottom surface.
2. dust-free black board eraser as claimed in claim 1 is characterized in that: the material of said hairbrush is a wool felt.
3. according to claim 1 or claim 2 dust-free black board eraser, it is characterized in that: the material of said blackboard eraser main body is the ABS engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200654613U CN202463377U (en) | 2012-02-25 | 2012-02-25 | Dust-free blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200654613U CN202463377U (en) | 2012-02-25 | 2012-02-25 | Dust-free blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202463377U true CN202463377U (en) | 2012-10-03 |
Family
ID=46911565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200654613U Expired - Fee Related CN202463377U (en) | 2012-02-25 | 2012-02-25 | Dust-free blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202463377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150728A (en) * | 2015-10-06 | 2015-12-16 | 刘书廷 | Novel blackboard eraser |
-
2012
- 2012-02-25 CN CN2012200654613U patent/CN202463377U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150728A (en) * | 2015-10-06 | 2015-12-16 | 刘书廷 | Novel blackboard eraser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20130225 |