CN201552894U - Blackboard convenient to clean - Google Patents
Blackboard convenient to clean Download PDFInfo
- Publication number
- CN201552894U CN201552894U CN2009202399190U CN200920239919U CN201552894U CN 201552894 U CN201552894 U CN 201552894U CN 2009202399190 U CN2009202399190 U CN 2009202399190U CN 200920239919 U CN200920239919 U CN 200920239919U CN 201552894 U CN201552894 U CN 201552894U
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- China
- Prior art keywords
- blackboard
- convenient
- clean
- hand
- mounting groove
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Abstract
The utility model discloses a blackboard convenient to clean. The blackboard convenient to clean comprises a blackboard body and a chalk dust cleaning device arranged on the blackboard body, wherein the chalk dust cleaning device comprises an eraser rod tightly clinging to the plane of the blackboard body, and a lifting adjustment device used for lifting the eraser rod. Therefore, by using the eraser rod to erase the blackboard, the convenient and rapid effect can be achieved. In addition, a hand-operated device is used for adjusting the eraser rod to slide up and down, thus erasing the blackboard. As the area of cleaning cloth of the eraser rod is large and the hand-operated device is adopted for operation, the labor and material resources are saved. The blackboard exempts teachers from erasing the blackboard at a close distance, thus avoiding the absorption of chalk dust in quantity and protecting the health of teachers.
Description
Technical field
The utility model relates to a kind of teaching aid, relates in particular to a kind of blackboard.
Background technology
During teachers' instruction, usually can on blackboard, write full letter written with chalk, little by little wipe with blackboard eraser then, continue again to write.Because blackboard eraser generally is designed to the style being convenient to clutch, so blackboard eraser is smaller, the area of wiping is limited, when wiping the whole blocks blackboard, spends many times, delays teachers' instruction, influences efficiency of teaching.In addition, when erasing the board with blackboard eraser, the teacher is very near from blackboard, is easy to absorb a large amount of chalk dusts.
The utility model content
Technical problem to be solved in the utility model provides a kind of easy to use, the blackboard of being convenient to clean of safety.
For solving the problems of the technologies described above, the technical solution of the utility model is: the blackboard of being convenient to clean, comprise the blackboard body, and described blackboard also comprises the chalk dust cleaning plant that is installed on the described blackboard body.
As a kind of optimized technical scheme, described chalk dust cleaning plant comprises mounting groove, and described mounting groove is fixed on the dual-side of described blackboard body; The blackboard eraser bar, described blackboard eraser bar is close on the described blackboard body plane, and the two ends of described blackboard eraser bar are slidingly mounted on respectively in the described mounting groove; Elevation and subsidence regulating device, described elevation and subsidence regulating device are fixedly mounted on the described blackboard body, and are connecting two terminations of blackboard eraser bar.
As a kind of optimized technical scheme, described blackboard eraser bar comprises stripe board; On the medial surface of blackboard body, be covered with rag in described stripe board.
As a kind of optimized technical scheme, described elevation and subsidence regulating device comprises the steel wire on the termination that is connected described blackboard eraser bar; Be arranged on the fixed pulley at mounting groove top; Be installed in the hand-operated device of mounting groove bottom, described steel wire is connected on the hand-operated device through fixed pulley.
After having adopted technique scheme, the beneficial effects of the utility model are: because this blackboard of being convenient to clean comprises blackboard body and the chalk dust cleaning plant that is installed on the described blackboard body, described chalk dust cleaning plant comprises the blackboard eraser bar of being close to described blackboard body plane, and the elevation and subsidence regulating device that is used for the described blackboard eraser bar of lifting, so, erase the board by the blackboard eraser bar, convenient and swift.In addition, use hand-operated device to come sliding up and down of adjustable plate pole, thus blackboard eraser is clean, because the rag area of blackboard eraser bar is big, and adopt hand-operated device operation, human-saving, material resources.And the teacher need not closely erase the board, and avoided a large amount of absorption chalk dusts, protected that the teacher's is healthy.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
In the accompanying drawing: 1-blackboard body; 2-blackboard eraser bar; The 21-stripe board; The 22-rag; The 3-mounting groove; The 4-steel wire; The 5-hand-operated device.
The specific embodiment
As shown in drawings, the blackboard of being convenient to clean comprises: blackboard body 1, and described blackboard body 1 is flat rectangular build; Blackboard eraser bar 2, described blackboard eraser bar 2 comprises a stripe board 21, is provided with rag 22 in a side of described stripe board 21; Two vertical edges of described blackboard body 1 are provided with mounting groove 3, and two terminations of described blackboard eraser bar 2 are slidingly mounted in the described mounting groove 3; Elevation and subsidence regulating device, described elevation and subsidence regulating device comprises hand-operated device 5, and described hand-operated device 5 is fixedly mounted on the base of described blackboard body 1, and the steel wire 4 of described hand-operated device 5 is connected on two terminations of blackboard eraser bar by the fixed pulley (not shown).
Use principle of the present utility model: before the use, blackboard eraser bar 2 is transferred to the lowermost end of blackboard body 1.When last class hour, the teacher write on the blackboard expired letter written with chalk after, the teacher stands in blackboard one side, with hand hand-operated device 5 handles, blackboard eraser bar 2 is slowly risen, and in the blackboard eraser bar 2 rise processes blackboard is slowly wiped clean.After having wiped, can counter-rotation hand-operated device 5 blackboard eraser bar 2 slowly be dropped to blackboard body 1 least significant end, wait for next time and using.
Hand-operated device is a known technology, and hand-operated device has the function that realizes lifting, self-locking.The self-lock mechanism of hand-operated device: when stopping, be, produce " self-locking " that when rising or descending, then spring tightens up, reduce friction, so can smooth lifting with spring cup by the huge frictional resistance of the tension force generation of spring.
Use this blackboard of being convenient to clean, made things convenient for the teacher to clear up blackboard, because the large tracts of land of blackboard eraser bar contact blackboard body so can wipe clean blackboard fast, improves the efficient of giving lessons on the teacher.And when erasing the board, the teacher need not only need stand in hand-operated device one side near blackboard, uses hand hand-operated device, can erase the board, so, avoided the teacher to suck a large amount of chalk dusts.The utility model is novel, and is easy to use, and health improves teacher's efficient of teaching, and the protection teacher is healthy.
Claims (4)
1. be convenient to the blackboard that cleans, comprise the blackboard body, it is characterized in that: described blackboard also comprises the chalk dust cleaning plant that is installed on the described blackboard body.
2. the blackboard of being convenient to clean as claimed in claim 1 is characterized in that: described chalk dust cleaning plant comprises
Mounting groove, described mounting groove are fixed on the dual-side of described blackboard body;
The blackboard eraser bar, described blackboard eraser bar is close on the described blackboard body plane, and the two ends of described blackboard eraser bar are slidingly mounted on respectively in the described mounting groove;
Elevation and subsidence regulating device, described elevation and subsidence regulating device are fixedly mounted on the described blackboard body, and are connecting two terminations of blackboard eraser bar.
3. the blackboard of being convenient to clean as claimed in claim 2 is characterized in that: described blackboard eraser bar comprises stripe board;
On the medial surface of blackboard body, be covered with rag in described stripe board.
4. as claim 2 or the 3 described blackboards of being convenient to clean, it is characterized in that: described elevation and subsidence regulating device comprises
Be connected the steel wire on the termination of described blackboard eraser bar;
Be arranged on the fixed pulley at mounting groove top;
Be installed in the hand-operated device of mounting groove bottom, described steel wire is connected on the hand-operated device through fixed pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202399190U CN201552894U (en) | 2009-10-14 | 2009-10-14 | Blackboard convenient to clean |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202399190U CN201552894U (en) | 2009-10-14 | 2009-10-14 | Blackboard convenient to clean |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201552894U true CN201552894U (en) | 2010-08-18 |
Family
ID=42612569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202399190U Expired - Fee Related CN201552894U (en) | 2009-10-14 | 2009-10-14 | Blackboard convenient to clean |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201552894U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589859A (en) * | 2015-01-22 | 2015-05-06 | 张运 | Multifunctional blackboard |
| CN106881981A (en) * | 2017-03-21 | 2017-06-23 | 张凡 | A kind of blackboard auto-erasing device |
| CN108944189A (en) * | 2018-07-16 | 2018-12-07 | 常州信息职业技术学院 | Blackboard for teaching |
| CN109130602A (en) * | 2018-09-12 | 2019-01-04 | 林哈尔 | Auxiliary tool is used in a kind of drawing of mathematical education |
-
2009
- 2009-10-14 CN CN2009202399190U patent/CN201552894U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589859A (en) * | 2015-01-22 | 2015-05-06 | 张运 | Multifunctional blackboard |
| CN106881981A (en) * | 2017-03-21 | 2017-06-23 | 张凡 | A kind of blackboard auto-erasing device |
| CN108944189A (en) * | 2018-07-16 | 2018-12-07 | 常州信息职业技术学院 | Blackboard for teaching |
| CN109130602A (en) * | 2018-09-12 | 2019-01-04 | 林哈尔 | Auxiliary tool is used in a kind of drawing of mathematical education |
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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: 20100818 Termination date: 20101014 |