CN202011282U - Dust-absorbing blackboard eraser - Google Patents
Dust-absorbing blackboard eraser Download PDFInfo
- Publication number
- CN202011282U CN202011282U CN2010206743081U CN201020674308U CN202011282U CN 202011282 U CN202011282 U CN 202011282U CN 2010206743081 U CN2010206743081 U CN 2010206743081U CN 201020674308 U CN201020674308 U CN 201020674308U CN 202011282 U CN202011282 U CN 202011282U
- Authority
- CN
- China
- Prior art keywords
- dust
- wiping board
- box cover
- upper box
- sides
- 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 dust-absorbing blackboard eraser including an upper box cover and a lower eraser board, the bottom of the upper box cover is provided with a trapezoidal projection, a miniature fan and a battery shell are arranged in the middle cavity of the projection, and the bottom of the miniature fan is provided with a first opening, the top of the lower eraser board is provided with a trapezoidal groove which is matched with the projections in shape, the lower eraser board is provided with a second opening corresponding to the first opening at the lower bottom of the upper box cover, a felt is arranged at the bottom of the lower eraser board, and both sides of the felt are provided with air suction openings. The dust-absorbing blackboard eraser provided prevents the dust from spreading all around while erasing the chalk dust on the blackboard, furthermore, the eraser provided is simple in structure, convenient in use, and is capable of absorbing the chalk dust into the dust chamber in an oriented direction.
Description
Technical field
The utility model relates to a kind of teaching aid, relates in particular to a kind of dust absorption blackboard eraser.
Background technology
So also do not carrying out the too busy to get away blackboard of electronic instruction in middle and primary schools at present, there has been chalk on blackboard, to write, having write the back can reuse for blackboard, just the previous word of writing all must be wiped, ashes can constantly fall in the process of wiping, and the dust on the blackboard can wave everywhere, stick the teacher on the face, on hand, on the clothes, this not only influences environmental sanitation, and sucks healthy unfavorable that the air have dust can be to teachers and students.
The utility model content
The purpose of this utility model provides a kind of dust-absorbing blackboard sassafras.Reach on wiping blackboard and in the dust, dust is waved everywhere, it is simple in structure, and is easy to use, can with a fen-ting to suction specify in the dust room.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of dust absorption blackboard eraser, comprise: a upper box cover, there is trapezoidal projection the bottom surface of described upper box cover, be provided with small-sized fans, battery case in the described projection middle cavity, there is one first perforate at the place, bottom surface of described small-sized fans, wiping board once, the described end face of wiping board down is provided with trapezoidal groove, described groove and described projection shape are complementary, first tapping of the corresponding described upper box cover bottom surface of described wiping board down is provided with one second perforate, the described bottom surface of wiping board down is a felt, and all there is air suction opening the both sides of described felt.
Above-mentioned a kind of dust absorption blackboard eraser, wherein, described second tapping is provided with screen pack.
Above-mentioned a kind of dust absorption blackboard eraser, wherein, both sides are provided with the dust portable plate in the cavity of described blackboard eraser down.
Above-mentioned a kind of dust absorption blackboard eraser, wherein, the described both sides of wiping board down are equipped with dust exhausting hole, and described dust exhausting hole is arranged at down the both sides of wiping board.
Above-mentioned a kind of dust absorption blackboard eraser, wherein, a side of described upper box cover is provided with the switch opposite side and has additional an annulus.
A kind of dust absorption blackboard eraser of the present utility model, by in upper box cover, being provided with mini-van and battery, the cavity of following wiping board bottom surface felt being wiped the following wiping board of dust suction that falls has suffered, reach on wiping blackboard in the dust, dust is waved everywhere, it is simple in structure, and is easy to use, can with a fen-ting to suction specify in the dust room and help teachers and students' health status.
Description of drawings
By reading the detailed description of non-limiting example being done with reference to following accompanying drawing, other features of the present utility model, purpose and advantage will become more obvious.
Fig. 1 is the following wiping board schematic diagram of a kind of dust absorption blackboard eraser of the utility model;
Fig. 2 is the upper box cover schematic diagram of a kind of dust absorption blackboard eraser of the utility model.
The specific embodiment
Come a kind of dust absorption blackboard eraser of the utility model is done explanation in further detail below in conjunction with specification drawings and specific embodiments.
Fig. 1 is the following wiping board schematic diagram of a kind of dust absorption blackboard eraser of the utility model; Fig. 2 is the upper box cover schematic diagram of a kind of dust absorption blackboard eraser of the utility model.
See also Fig. 1, a kind of dust absorption blackboard eraser shown in Figure 2 comprises: a upper box cover 1, there is trapezoidal projection 3 bottom surface of upper box cover 1, be provided with small-sized fans 4, battery case 5 in projection 3 middle cavities, there is one first perforate at the place, bottom surface of small-sized fans 4, and once wiping board 2, and the end face of following wiping board 2 is provided with trapezoidal groove 6, groove 6 is complementary with projection 3 shapes, first tapping of following wiping board 2 corresponding upper box cover 1 bottom surfaces is provided with one second perforate 8, and the bottom surface of following wiping board 2 is a felt 7, and all there is air suction opening 13 both sides of felt 7.8 places are provided with screen pack 14 in second perforate.Both sides are provided with dust portable plate 9 in the cavity of following wiping board 2.The both sides of following wiping board 2 are equipped with dust exhausting hole 10, and dust exhausting hole 10 is arranged at down the both sides of wiping board 2.One side of upper box cover 1 is provided with switch 12 opposite sides and has additional an annulus 11.
In the present embodiment, when preparing to be wiped by the word on the blackboard, open a side switch 12 buttons of upper box cover 1 earlier, small-sized fans 4 in upper box cover 1 cavity begins to rotate, and the felt 7 of following wiping board 2 bottom surfaces is wiped chalk dust fall, the passage of the air suction opening 13 of felt 7 both sides by being communicated with small-sized fans 4, with dropping and being drawn into the inside cavity of wiping board 2 down at the skyborne dust that waves, enter down the dust of wiping board 2 cavity insides, be adsorbed on down on the cavity inside and portable plate 9 of wiping board 2.When preparing cleaning, the trapezoidal projection 3 of the bottom surface by upper box cover 1 and the end face of following wiping board 2 are provided with the dress assembly of trapezoidal groove 6, and upper box cover 1 is separated with following wiping board 2.Upper box cover 1 is taken off cleanings of taking away corresponding to the following screen pack 14 at wiping board 2 second perforates 8 places, be equipped with dust exhausting hole 10, and will descend wiping board 1 both sides dust exhausting hole 10 to open the dust that to be adsorbed in down on wiping board 1 inner chamber and the portable plate 9 to clean up in the both sides of descending wiping board 2.When running into the electric weight deficiency, can remove to change battery by the battery case in the upper box cover 15.After cleaning out, the annulus 11 of dust-absorbing blackboard sassafras by upper box cover 1 one sides is suspended on the blackboard limit.
In sum, a kind of dust-absorbing blackboard sassafras of the utility model, be provided with mini-van and battery in the cavity by upper box cover, the cavity of following wiping board bottom surface felt being wiped the following wiping board of dust suction that falls has suffered, reach on wiping blackboard and in the dust, dust is waved everywhere, it is simple in structure, easy to use, can with a fen-ting to suction specify the health status that helps teachers and students in the dust room.
By lid cover fully carton and crate above, and the upper edge of carton and crate both sides is provided with a plurality of recesses, reaches electrical wire board is accommodated in the chamber, and the electric wire that is inserted with on the electrical wire board makes wire socket keep clean and tidy by the neat arrangement of recess.
More than specific embodiment of the utility model is described.It will be appreciated that the utility model is not limited to above-mentioned specific implementations, wherein equipment of not describing in detail to the greatest extent and structure are construed as with the common mode in this area and are implemented; Those skilled in the art can make various distortion or modification within the scope of the claims, and this does not influence flesh and blood of the present utility model.
Claims (5)
1. dust absorption blackboard eraser, it is characterized in that, comprise: a upper box cover, there is trapezoidal projection the bottom surface of described upper box cover, be provided with small-sized fans, battery case in the described projection middle cavity, there is one first perforate at the place, bottom surface of described small-sized fans, wiping board once, the described end face of wiping board down is provided with trapezoidal groove, described groove and described projection shape are complementary, first tapping of the corresponding described upper box cover bottom surface of described wiping board down is provided with one second perforate, and the described bottom surface of wiping board down is a felt, and all there is air suction opening the both sides of described felt.
2. a kind of dust-absorbing blackboard sassafras according to claim 1 is characterized in that described second tapping is provided with screen pack.
3. a kind of dust-absorbing blackboard sassafras according to claim 1 is characterized in that, both sides are provided with the dust portable plate in the cavity of described wiping board down.
4. a kind of dust-absorbing blackboard sassafras according to claim 1 is characterized in that, the described both sides of wiping board down are equipped with dust exhausting hole, and described dust exhausting hole is arranged at down the both sides of wiping board.
5. a kind of dust-absorbing blackboard sassafras according to claim 1 is characterized in that a side of described upper box cover is provided with the switch opposite side and has additional an annulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206743081U CN202011282U (en) | 2010-12-22 | 2010-12-22 | Dust-absorbing blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206743081U CN202011282U (en) | 2010-12-22 | 2010-12-22 | Dust-absorbing blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202011282U true CN202011282U (en) | 2011-10-19 |
Family
ID=44781890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206743081U Expired - Fee Related CN202011282U (en) | 2010-12-22 | 2010-12-22 | Dust-absorbing blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202011282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103587306A (en) * | 2012-08-14 | 2014-02-19 | 周鹏鹏 | Blackboard eraser capable of sucking chalk powder |
-
2010
- 2010-12-22 CN CN2010206743081U patent/CN202011282U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103587306A (en) * | 2012-08-14 | 2014-02-19 | 周鹏鹏 | Blackboard eraser capable of sucking chalk powder |
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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: 20111019 Termination date: 20111222 |