CN2217522Y - Rotating self-erasing blackboard - Google Patents
Rotating self-erasing blackboard Download PDFInfo
- Publication number
- CN2217522Y CN2217522Y CN 95200388 CN95200388U CN2217522Y CN 2217522 Y CN2217522 Y CN 2217522Y CN 95200388 CN95200388 CN 95200388 CN 95200388 U CN95200388 U CN 95200388U CN 2217522 Y CN2217522 Y CN 2217522Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- cylinder
- erasing blackboard
- plate face
- automatic erasing
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides an electric and manual rotating self-erasing blackboard for teaching, which is composed of a blackboard surface, a roller and a blackboard wiper. The utility model is characterized in that the blackboard surface which is made of soft material is tensed by left and right rollers with teeth, one roller is provided with an adjustable wiping plate, and the other roller is provided with a reverse rotation round brush with double speed; the writing on the blackboard is cleaned by secondary removing. The utility model improves the teaching environment completely, and obtains the goals of no fly ash escaping and improving teaching quality.
Description
The utility model provides a kind of electronic, dual-use manual rotation automatic erasing blackboard of the usefulness of imparting knowledge to students.
But existing Revolving blackboard is wiped while writing, and dust is only just once wiped clearly, and service time one, long dust was difficult to clean, and Faculty and Students' health is produced harmful effect.
The blackboard that the purpose of this utility model is to provide a kind of can rotate continuously, wipe certainly.
The plate face that the utility model employing flexible material is made is by being contained in two toothed rotor tensionings about it, one cylinder is provided with adjustable wiping board, another cylinder is provided with doubly fast reverse rotation round brush, writing on the plate is eliminated clean by secondary, reach the purpose that no dust escapes, improve teaching environment, reached the purpose of improving the quality of teaching.
Fig. 1 is overall structure figure of the present utility model.
Fig. 2 is a vertical view of the present utility model.
Fig. 3 is a cutaway view of the present utility model.
1-3 is described in detail the utility model below in conjunction with accompanying drawing.
The utility model by plate face 3, cylinder 1,5 and blackboard eraser 2 consist of, make with flexible material Plate face 3 is by being contained in two toothed rotors 1,5 tensionings about it, and cylinder is fixed on the support 15, Cylinder 1 is provided with adjustable wiping board 2, and cylinder 5 is provided with a reverse rotation round brush 4, the axle of round brush 4 It is one greatly sliding that the axle upper end of the truckle 11 that is provided with of upper end by V belt 14 and cylinder 5 is provided with Wheel 10 links to each other; Wiping board 2 is fixed on the convex support 15 by bolt 7, wiping board 2 and support On 15 the bolt 7 adjustable pressure spring 6 is installed, the axle of cylinder 1 is provided with handle 8, 15 liang of inferior horns of frame are equipped with dust discharge door 13, and blackboard is contained in the shell 12, about the plate face 3 Be provided with perforation 16, the back of its plate face 3 is provided with one deck and reinforces liner plate 9.
Embodiment: the radius of establishing truckle 11 is the 1/3-1/4 of large pulley 10 radiuses, the plate face is made of the soft iron leather, when manual or electronic turning handle 8, cylinder 1 rotates and stranded by two ends gear up and down thereupon, drive the plate face and rotate, when by cylinder 1, wiped, turn to cylinder 5 by blackboard eraser, it nuzzles up and is partly revolved wiping at a high speed once more by round brush 4, and the plate face is wiped clean clearly through secondary.
Claims (6)
1, a kind of rotation automatic erasing blackboard, constitute by plate face 3, cylinder 1,5 and blackboard eraser 2, it is characterized in that: the plate face made from flexible material 3 is by being contained in two toothed rotors, 1,5 tensionings about it, cylinder is fixed on the support 15, cylinder 1 is provided with adjustable wiping board 2, cylinder 5 is provided with a reverse rotation round brush 4, and the axle upper end of round brush 4 is provided with a truckle 11 and is provided with a large pulley 10 by V belt 14 with the axle upper end of cylinder 5 and links to each other.
2, by the described rotation automatic erasing blackboard of claim 1, it is characterized in that: wiping board 2 is fixed on the convex support 15 by bolt 7, on the bolt that wiping board 2 and support are 15 adjustable pressure spring 6 is installed.
3, by the described rotation automatic erasing blackboard of claim 1, it is characterized in that: the axle of cylinder 1 is provided with handle 8.
4, by the described rotation automatic erasing blackboard of claim 1, it is characterized in that: 15 liang of inferior horns of support are equipped with dust discharge door 13.
5, by the described rotation automatic erasing blackboard of claim 1, it is characterized in that: blackboard is contained in the shell 12.
6, by the described rotation automatic erasing blackboard of claim 1, it is characterized in that; Have perforation 16 on the plate face 3, the back of its plate face 3 is provided with one deck and reinforces liner plate 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200388 CN2217522Y (en) | 1995-01-06 | 1995-01-06 | Rotating self-erasing blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200388 CN2217522Y (en) | 1995-01-06 | 1995-01-06 | Rotating self-erasing blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2217522Y true CN2217522Y (en) | 1996-01-17 |
Family
ID=33854150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95200388 Expired - Fee Related CN2217522Y (en) | 1995-01-06 | 1995-01-06 | Rotating self-erasing blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2217522Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029542A (en) * | 2014-07-07 | 2014-09-10 | 江苏理工学院 | Storage type automatic blackboard of line-scan camera |
-
1995
- 1995-01-06 CN CN 95200388 patent/CN2217522Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029542A (en) * | 2014-07-07 | 2014-09-10 | 江苏理工学院 | Storage type automatic blackboard of line-scan camera |
| CN104029542B (en) * | 2014-07-07 | 2017-02-08 | 江苏理工学院 | Storage type automatic blackboard of line-scan camera |
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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 |