CN102887021A - Portable blackboard eraser - Google Patents
Portable blackboard eraser Download PDFInfo
- Publication number
- CN102887021A CN102887021A CN 201210403023 CN201210403023A CN102887021A CN 102887021 A CN102887021 A CN 102887021A CN 201210403023 CN201210403023 CN 201210403023 CN 201210403023 A CN201210403023 A CN 201210403023A CN 102887021 A CN102887021 A CN 102887021A
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- CN
- China
- Prior art keywords
- blackboard eraser
- blackboard
- pulley wheel
- housed
- slide rail
- 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.)
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Abstract
The invention relates to a portable blackboard eraser comprising a blackboard, wherein an upper slide rail is arranged at the upper side of the blackboard and a lower slide rail is arranged at the lower side of the blackboard; an upper electric pulley wheel is arranged inside the upper slide rail and a lower electric pulley wheel is arranged inside the lower slide rail; the upper electric pulley wheel and the lower electric pulley wheel are connected with each other and can move synchronously; a supporting rod is connected between the upper electric pulley wheel and the lower electric pulley wheel; a strip-shaped blackboard eraser which is as high as the blackboard is arranged at the right side of the supporting rod; an ash storage groove is arranged below the blackboard eraser and a dense net cover is arranged at the outer side of the blackboard eraser; a fan groove is arranged at the left side of the supporting rod; 5-8 small electric fans arranged in a vertical row are arranged at the inner side of the fan groove; a foreword-backward switch is arranged at the outer side of the fan groove; and the foreword-backward switch controls the movement of the upper electric pulley wheel and the lower electric pulley wheel and controls the rotation of the small electric fans. The invention provides the portable blackboard eraser which is convenient and fast to use, and can prevent chalk powder from flying so as to guarantee the cleanness of a classroom.
Description
Technical field
The present invention relates to a kind of blackboard eraser, relate in particular to a kind of Portable blackboard eraser.
Background technology
Class hour in the school, teacher often will wipe letter written with chalk with blackboard eraser, and the student on duty also needs blackboard eraser clean.Present blackboard eraser is made at a plank stickup lastblock wool product, and shape is little, uses also very effort, and diminutive student on duty can't clip the higher part of blackboard and divide.And present blackboard eraser is dustproof, can make to stir up a cloud of dust when erasing the board, and also is easy to chalk dust is dropped to the ground, and the health that erases the board and be sitting in front-seat classmate is had a great impact, and has increased burden also for student on duty's work.
Summary of the invention
For above-mentioned shortcoming, the invention provides a kind of by electrically operated Portable blackboard eraser.
A kind of Portable blackboard eraser comprises blackboard, and described blackboard upside is equipped with slide rail, and downside is equipped with glidepath; Be provided with the movable pulley that powers in upper slide rail, be provided with lower electronic pulley in the glidepath, power on movable pulley and lower electronic pulley are connected, and are synchronized with the movement; Be connected with support bar between movable pulley and the lower electronic pulley powering on; The blackboard eraser contour with blackboard of strip is housed on the right side of support bar; The storage ash-pit is housed below blackboard eraser, and fine and close guard is equipped with in the outside; In the left side of support bar the fan groove is housed; At the inboard vertical setting of types of fan groove 5～8 little electric fans are housed, that be equipped with in the outside is suitable, fall switch; The rotation of little electric fan is controlled in the power on motion of movable pulley and lower electronic pulley of suitable, the control of falling the switch simultaneously.
In the storage ash-pit described above little drawer is housed, little drawer can be extracted.
Fine and close guard described above detachably gets off.
The rotating speed of little electric fan described above is 100r/min.
Compared with prior art, the invention provides a kind of Portable blackboard eraser, use simple, can be suitable by opening, fall switch, make blackboard eraser automatically wipe letter written with chalk on the blackboard, fine and close guard can prevent that chalk dust from dancing in the air all over the sky, the little electric fan of low-rotate speed can blow into the chalk dust that flies up fine and close guard, the chalk dust that falls down can fall into the storage ash-pit, kept like this Classroom air pure and fresh clean and tidy with ground, reduce burden to the academics and students, reduced simultaneously the harm of chalk dust to academics and students's health.
Description of drawings
Fig. 1 is the structural representation of Portable blackboard eraser of the present invention.
Among the figure: 1, blackboard, 2, upper slide rail, 3, glidepath, 4, the movable pulley that powers on, 5, lower electronic pulley, 6, support bar, 7, blackboard eraser, 8, the storage ash-pit, 9, fine and close guard, 10, the fan groove, 11, little electric fan, 12, suitable, fall switch, 13, little drawer.
The specific embodiment
Embodiment 1
Present embodiment provides a kind of Portable blackboard eraser, and structure comprises blackboard 1 as shown in Figure 1, and described blackboard 1 upside is equipped with slide rail 2, and downside is equipped with glidepath 3; Be provided with the movable pulley 4 that powers in upper slide rail 2, be provided with lower electronic pulley 5 in the glidepath 3, power on movable pulley 4 and lower electronic pulley 5 are connected, and are synchronized with the movement; Be connected with support bar 6 between movable pulley 4 and the lower electronic pulley 5 powering on; The blackboard eraser 7 contour with blackboard of strip is housed on the right side of support bar 6; Storage ash-pit 8 is housed below blackboard eraser 7, and dismountable fine and close guard 9 is equipped with in the outside; In the storage ash-pit 8 little drawer 13 is housed, little drawer 13 can be extracted out; In the left side of support bar 6 fan groove 10 is housed; At fan groove 10 inboard vertical setting of types 5～8 little electric fans 11 that rotating speed is slow are housed, that be equipped with in the outside is suitable, fall switch 12; Suitable, the switch 12 that falls is controlled the motion of power on movable pulley 4 and lower electronic pulley 5, controls simultaneously the rotation of little electric fan 11.
In the time of need to erasing the board, press suitable, fall switch 12, this moment, little electric fan 11 began to rotate, power on movable pulley 4 and lower electronic pulley 5 to a Slideslip, letter written with chalk on the blackboard 1 is wiped, the chalk dust that little electric fan 11 will fly upward is blown in the fine and close guard 9, and the chalk dust of whereabouts falls into the little drawer 13 in the storage ash-pit 8, and blackboard eraser 7 stops when moving to blackboard 1 opposite side.When the chalk dust in the little drawer 13 is filled, extract little drawer 13, outwell behind the chalk dust and little drawer 13 to be reinstalled storage ash-pit 8.When chalk dust sticking on the fine and close guard 9 is many, pull down fine and close guard 9, refill after cleaning up on the blackboard eraser 7.
The present invention is easy to use, quick, suitable by opening, fall switch, make blackboard eraser automatically wipe letter written with chalk on the blackboard, fine and close guard can prevent that chalk dust from dancing in the air all over the sky, the little electric fan of low-rotate speed can blow into the chalk dust that flies up fine and close guard, and the chalk dust that falls down can fall into the storage ash-pit, has kept like this Classroom air pure and fresh clean and tidy with ground, reduce burden to the academics and students, reduced simultaneously the harm of chalk dust to academics and students's health.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (4)
1. a Portable blackboard eraser comprises blackboard (1), it is characterized in that: described blackboard (1) upside is equipped with slide rail (2), and downside is equipped with glidepath (3); Be provided with the movable pulley that powers on (4) in upper slide rail (2), be provided with lower electronic pulley (5) in the glidepath (3), the movable pulley that powers on (4) and lower electronic pulley (5) are connected, and are synchronized with the movement; Between the movable pulley that powers on (4) and lower electronic pulley (5), be connected with support bar (6); The blackboard eraser contour with blackboard (7) of strip is housed on the right side of support bar (6); In blackboard eraser (7) below storage ash-pit (8) is housed, fine and close guard (9) is equipped with in the outside; In the left side of support bar (6) fan groove (10) is housed; At the inboard vertical setting of types of fan groove (10) 5～8 little electric fans (11) are housed, that be equipped with in the outside is suitable, fall switch (12); Suitable, the switch (12) that falls is controlled the motion of power on movable pulley (4) and lower electronic pulley (5), controls simultaneously the rotation of little electric fan (11).
2. Portable blackboard eraser according to claim 1, it is characterized in that: little drawer (13) is housed in the described storage ash-pit (8), and little drawer (13) can be extracted.
3. Portable blackboard eraser according to claim 1, it is characterized in that: described fine and close guard (9) detachably gets off.
4. Portable blackboard eraser according to claim 1, it is characterized in that: the rotating speed of described little electric fan (11) is 100r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210403023 CN102887021A (en) | 2012-10-22 | 2012-10-22 | Portable blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210403023 CN102887021A (en) | 2012-10-22 | 2012-10-22 | Portable blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102887021A true CN102887021A (en) | 2013-01-23 |
Family
ID=47530783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210403023 Pending CN102887021A (en) | 2012-10-22 | 2012-10-22 | Portable blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102887021A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106263296A (en) * | 2016-10-17 | 2017-01-04 | 成都卡美奇鞋业有限公司 | A kind of automatic adhesive spray device |
| CN108162638A (en) * | 2017-12-29 | 2018-06-15 | 范科晨 | One kind is exempted to wipe disposable teacher's blackboard |
-
2012
- 2012-10-22 CN CN 201210403023 patent/CN102887021A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106263296A (en) * | 2016-10-17 | 2017-01-04 | 成都卡美奇鞋业有限公司 | A kind of automatic adhesive spray device |
| CN108162638A (en) * | 2017-12-29 | 2018-06-15 | 范科晨 | One kind is exempted to wipe disposable teacher's blackboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |