CN2723221Y - Full automatic blackboard - Google Patents
Full automatic blackboard Download PDFInfo
- Publication number
- CN2723221Y CN2723221Y CN 200420081636 CN200420081636U CN2723221Y CN 2723221 Y CN2723221 Y CN 2723221Y CN 200420081636 CN200420081636 CN 200420081636 CN 200420081636 U CN200420081636 U CN 200420081636U CN 2723221 Y CN2723221 Y CN 2723221Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- dust
- right sides
- crossbeam
- electric motors
- 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 relates to a teaching appliance for improving teaching conditions. At present, many schools in China still use blackboards to teach and when being used to erase chalk powders, artificial blackboard erasers on the market are not only force-consuming and time-consuming but have dust to fly around directly to do harm to the health of teachers and students and pollute the air and environment. The utility model provides a fully automatic blackboard eraser, comprising left and right screw rods 1, a beam 2 and four electric motors. Wherein, the right and left screw rods 2 whose bottoms are respectively provided with one electric motor 3 for controlling the beam 2 to move up and down are fixed at the left and right sides of blackboard walls. The beam 2 whose two ends are provided with two electric motors 4 is a long box groove and the inner part of the beam 2 is provided with a roller 5 being provided with a dust-adsorbing soft blanket 6. When the two electric motors 4 drive the roller 5 to do a peripheral movement, the dust-absorbing soft blanket 6 can erase chalk writings on the blackboard and the dust can fall into the box groove of the beam 2 to erase the blackboard.
Description
Technical field
The utility model relates to a kind of teaching aid that improves teaching condition, relates in particular to a kind of automatic blackboard eraser.
Background technology
At present, the most of school of China still uses black board teaching, and when the artificial blackboard eraser on the market was wiped chalk powder, not only effort, time-consuming also had dust to fly upward everywhere, directly endangers the healthy of Faculty and Students, and dust has also polluted air and environment.
Summary of the invention
Goal of the invention of the present utility model is to overcome above-mentioned defective, and a kind of automatic blackboard eraser is provided.
The utility model provides a kind of automatic blackboard eraser, it is by left and right sides screw rod 1, crossbeam 2, four motor are formed, wherein left and right sides screw rod 1 is fixed on the wall of the blackboard left and right sides, a motor 3 respectively is equipped with in the below of left and right sides screw rod 1, being used to control crossbeam 2 moves up and down at left and right sides screw rod 1, crossbeam 2 is a long box groove, two motor 4 are equipped with at two ends, there is a roller bearing 5 crossbeam 2 the insides, when having 6, two motor of the soft blanket of dust suction, 4 drive roller bearings 5 to make circular motion on the roller bearing 5, the soft blanket 6 of dust suction just can be wiped the chalk writing on the blackboard, dust can fall in the box groove of crossbeam 2, thereby blackboard eraser is clean.
The utlity model has simple in structure, dust collection efficiency is high, easy to use, advantage that production cost is low.Preventing effectively again that dust from practising everywhere raises, and the protection teaching environment has also been protected the healthy of teacher and student.
Description of drawings
The structural representation of Fig. 1 automatic blackboard eraser
The specific embodiment
Embodiment 1
As shown in Figure 1, a kind of automatic blackboard eraser, it is by left and right sides screw rod 1, crossbeam 2, four motor are formed, wherein left and right sides screw rod 1 is fixed on the wall of the blackboard left and right sides, a motor 3 respectively is equipped with in the below of left and right sides screw rod 1, being used to control crossbeam 2 moves up and down at left and right sides screw rod 1, crossbeam 2 is a long box groove, a motor 4 respectively is equipped with at two ends, there is a roller bearing 5 crossbeam 2 the insides, when having 6, two motor of the soft blanket of dust suction, 4 drive roller bearings 5 to make circular motion on the roller bearing 5, the soft blanket 6 of dust suction just can be wiped the chalk writing on the blackboard, dust falls in the box groove of crossbeam 2, can regularly remove dust, and crossbeam 2 moves up and down, the soft blanket 6 of dust suction just can be wiped the chalk writing on the blackboard, just blackboard eraser can be got very clean.
Claims (1)
1, a kind of automatic blackboard eraser, it is by left and right sides screw rod (1), crossbeam (2), four motor are formed, wherein left and right sides screw rod (1) is fixed on the wall of the blackboard left and right sides, a motor (3) respectively is equipped with in the below of left and right sides screw rod (1), crossbeam (2) is a long box groove, two motor (4) are equipped with at two ends, there is a roller bearing (5) crossbeam (2) the inside, the soft blanket of dust suction (6) is arranged on the roller bearing (5), two motor (4) drive roller bearing (5) when making circular motion, the soft blanket of dust suction (6) is wiped the chalk writing on the blackboard, and dust can fall in the box groove of crossbeam (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081636 CN2723221Y (en) | 2004-08-03 | 2004-08-03 | Full automatic blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420081636 CN2723221Y (en) | 2004-08-03 | 2004-08-03 | Full automatic blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723221Y true CN2723221Y (en) | 2005-09-07 |
Family
ID=35036856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420081636 Expired - Fee Related CN2723221Y (en) | 2004-08-03 | 2004-08-03 | Full automatic blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723221Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963522A (en) * | 2014-05-14 | 2014-08-06 | 广西电力职业技术学院 | Automatic blackboard eraser |
| CN106881981A (en) * | 2017-03-21 | 2017-06-23 | 张凡 | A kind of blackboard auto-erasing device |
-
2004
- 2004-08-03 CN CN 200420081636 patent/CN2723221Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963522A (en) * | 2014-05-14 | 2014-08-06 | 广西电力职业技术学院 | Automatic blackboard eraser |
| CN106881981A (en) * | 2017-03-21 | 2017-06-23 | 张凡 | A kind of blackboard auto-erasing device |
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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 |