CN202174859U - Blackboard capable of storing chalk dust and blackboard eraser - Google Patents
Blackboard capable of storing chalk dust and blackboard eraser Download PDFInfo
- Publication number
- CN202174859U CN202174859U CN2011201946775U CN201120194677U CN202174859U CN 202174859 U CN202174859 U CN 202174859U CN 2011201946775 U CN2011201946775 U CN 2011201946775U CN 201120194677 U CN201120194677 U CN 201120194677U CN 202174859 U CN202174859 U CN 202174859U
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- blackboard
- dust
- central shaft
- crocus
- handwriting
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Abstract
The utility model relates to the technical field of teaching aids, and it is a kind of blackboard capable of storing chalk dust and blackboard eraser, comprising a blackboard and a blackboard eraser which is in bar-shaped structure, and the blackboard eraser comprises a fixed axis, a center axis, a dust-covering soft board, a dust-cleaning pen and a dust storage tank, wherein the fixed axis and the center axis are shorter than the length of the blackboard, the fixed axis is fixed on the top of the blackboard, the center axis is arranged at the bottom of the dust-covering soft board, the dust-cleaning pen is set on the center axis with a replaceable, or a cylindrical structure, or a rolling structure more than three faces, a dust storing tank is arranged under the dust-cleaning pen, the opening of the dust storage tank is towards the bottom of the dust-cleaning pen; the top of the dust-covering soft board is connected with the fixed axis and can stretch and shrink on the fixed axis, the dust-cleaning pen and dust storage tank are movable connected with the fixed axis by dust-covering soft board, and a power bar is set on the central axis. The utility model has positive effects of arrangement of a blackboard eraser, less consumption of force, the chalk dust falling into the dust storage tank naturally, more healthy environmental, simple structure and convenience for application.
Description
Technical field
The utility model relates to the teaching aid technical field, specifically, is a kind of blackboard that can store the chalk dust blackboard eraser that has.
Background technology
Blackboard is a kind of important teaching aid, is one of basic equipment that disposes in school or the classroom of training the place or the Conference Hall.With regard to the quality of blackboard, wooden blackboard, cement blackboard, Glass blackboard (form that blank and green plate are arranged) and electronic whiteboard are arranged; With regard to the form of blackboard, fixed blackboard, mobile blackboard or the like are arranged, wherein; Except will using, writes the water-color paintbrush electronic whiteboard; Other forms of blackboard is mainly still using chalk, this wherein, traditional (having chalk dust to produce) chalk also occupies bigger proportion because of various reasons.Interrelated data shows that China has the Faculty and Students in a lot of areas annual because of sucking many chalk dusts on class.Though chalk is nontoxic, the suction chalk dust is always bad to human body, and especially the health effect to minority student is bigger.
At present, people have carried out the improvement of various ways to blackboard (comprising chalk, chalkboard eraser).What company and enterprise used nearly all is wooden blank or electronic whiteboard, and what have is also using writing paper.But, in school,, use the big specification blackboard of chalk to remain main teaching aid because funds are bigger with the amount of writing, though the blackboard eraser of employing has various ways, in any case, manual work erases the board or is main.
The utility model content
The utility model will solve the above problems; A kind of blackboard that can store the chalk dust blackboard eraser that has is provided; Chalk dust under in the process that erases the board, will wiping deposits the storage ash-pit in by natural force, as long as fund input seldom just can have the teaching environment of an environmental protection.
For solving the above problems, the technical scheme that the utility model adopts is:
A kind of have a blackboard that can store the chalk dust blackboard eraser, contains blackboard and blackboard eraser, it is characterized in that; Said blackboard eraser is a strip structure, comprises fixed axis, central shaft, screening ash soft board, crocus handwriting and storage ash-pit, and said fixed axis and central shaft are shorter than the length of blackboard; Fixed axis is fixed on the top of blackboard, and central shaft is arranged on the bottom that hides grey soft board, on central shaft, is socketed with the crocus handwriting; The below of crocus handwriting is provided with the storage ash-pit, stores up the below of grey channel opening facing to the crocus handwriting; The upper end that hides grey soft board is connected on the fixed axis, can on fixed axis, stretch and shrink; The crocus handwriting is movably connected on the fixed axis through hiding grey soft board with the storage ash-pit; Be provided with a power rail at central shaft.
Said crocus handwriting is a tubular structure, can on central shaft, roll when erasing the board.
Said crocus handwriting is the rolling structure more than three, can not on central shaft, roll when erasing the board, but can on central shaft, rotate (conversion face).
Said crocus handwriting is removable.
The grey soft board of said screening is a canvas layer.
Said storage ash-pit or will hide the stubborn bathtub construction that is converted in lower end of grey soft board, or connect a bathtub construction in the lower end that hides grey soft board.
A kind of mode of operation with the blackboard that can store the chalk dust blackboard eraser of the utility model is:
The utility model is installed in the top at blackboard, and its Installation Modes is just as hanging " projection screen ".
The utility model of the crocus handwriting of employing tubular structure in use; Through power rail central shaft and crocus handwriting thereof are pulled down with the storage ash-pit; Heading on central shaft with power rail then up pushes away; Make the positive friction of crocus handwriting and blackboard, this moment, chalk dust fell naturally, fell in the storage ash-pit through storage ash-pit opening up.Even there is a small amount of chalk dust to kick up, also can under the stopping that hides grey soft board, fall, drop in the storage ash-pit.
The utility model that adopts three above rolling structure crocus handwritings in use; The crocus handwriting of this shape through power rail central shaft and crocus handwriting thereof can both be erased the board when ash-pit pulls down or up pushes away with storing up, because can not be rolled; Can only erase the board with the one side of crocus handwriting; Therefore, after having wiped one bout, can the crocus handwriting be rotated a face; With speckle with chalk dust one facing to the storage ash-pit, the vibration that causes of erasing the board can " be shaken off " the storage ash-pit with sticking in the chalk dust of using on the one side.
After the use, central shaft and crocus handwriting thereof and storage ash-pit are received on the fixed axis the packing up of similar projection screen; Use an end after the time, just central shaft is left behind, and will store up ash-pit and dig, and pours out the chalk dust of the inside; The crocus handwriting also can be changed or cleaned.
The good effect of the utility model is:
(1) directly set up blackboard eraser on the blackboard, it is convenient relatively to erase the board, firmly littler;
(2) chalk dust under the wiping can fall into the storage ash-pit naturally, has avoided kicking up of chalk dust, makes environment much cleaner;
(3) simple in structure, the crocus handwriting can be changed, and is expensive few and easy for installation.
Description of drawings
Accompanying drawing 1 is a kind of structural representation with the blackboard that can store the chalk dust blackboard eraser of the utility model;
Accompanying drawing 2 is the side view of accompanying drawing 1;
Label among the figure is respectively:
1, blackboard; 2, blackboard eraser; 3, fixed axis;
4, central shaft; 5, hide grey soft board; 6, crocus handwriting;
7, storage ash-pit; 8, store up grey channel opening; 9, power rail.
The specific embodiment
Provide a kind of specific embodiment of the utility model below in conjunction with accompanying drawing, but be noted that the enforcement of the utility model is not limited to following embodiment with the blackboard that can store the chalk dust blackboard eraser.
Referring to attaching Fig. 1 and 2.A kind of have a blackboard that can store the chalk dust blackboard eraser, on the top of blackboard 1 blackboard eraser 2 is installed directly.Said blackboard eraser 2 is a strip structure, and similar " projection screen " comprises fixed axis 3, central shaft 4, hides grey soft board 5, crocus handwriting 6 and storage ash-pit 7.Described fixed axis 3 can adopt Metallic rod with central shaft 4, and the length of the ratio blackboard 1 that should do is short slightly, and the two ends of central shaft 4 are provided with little pole, and one of them little pole and central shaft 4 flexibly connect, and are provided with back-moving spring in the junction.The grey soft board 5 of described screening adopts canvas to make.Described crocus handwriting 6 can be made tubular structure, can roll when it is contained in 4 last times of central shaft; Or, crocus handwriting 6 is made three or six s' structure, because three or six s' structure is more stable,, they can rotate when being contained in 4 last times of central shaft, that is, the face of crocus handwriting 6 can conversion; The crocus handwriting 6 of said here tubular structure, three or six structures all can be changed, one damaged can change one new.Described storage ash-pit 7 or will hide the bathtub construction that the stubborn crease in lower end of grey soft board 5 is processed; Or the bathtub construction of making or pasting plastics in the lower end that hides grey soft board 5; If adopt the words of plastic structural part; Can adopt transparent plastic to make bathtub construction, the chalk dust of the inside dress can open-and-shutly be found out.
After accomplishing, each parts carries out general assembly: fixed axis 3 is fixed on the top of blackboard 1, rich spring is set, the upper end that hides grey soft board 5 is connected on the fixed axis 3 and with rich spring is connected, the grey soft board 5 of screening can be stretched and shrink on fixed axis 3 on fixed axis 3.Bottom hiding grey soft board 5 is provided with central shaft 4, on the little pole at central shaft 4 two ends, crocus handwriting 6 is set, because a little pole flexibly connects with central shaft 4, with the back-moving spring tension, therefore, installation or replacing crocus handwriting 6 are to be relatively easy to.On the ash of the screening below the crocus handwriting 6 soft board 5, storage ash-pit 7 is set, the grey channel opening 8 of storage is directly faced toward the below of crocus handwriting 6.Because hide grey soft board 5 when collapsed state than higher, common people can't reach, and therefore, need be provided with a power rail 9 at central shaft 4.Like this, the user just can move up and down on fixed axis 3 with storage ash-pit 7 in the crocus handwriting 6 that hides on the grey soft board 5 lower central axles 4 through power rail 9 operation setting, and the blackboard of writing full word is carried out wiping.
Those skilled in the art can also make some similar improvement and retouching under the prerequisite that does not break away from the utility model technical scheme, improvement that these are similar and retouching also should be regarded as the protection domain of the utility model.
Claims (7)
1. one kind has the blackboard that can store the chalk dust blackboard eraser, contains blackboard (1) and blackboard eraser (2), it is characterized in that; Said blackboard eraser is a strip structure; Comprise fixed axis (3), central shaft (4), hide grey soft board (5), crocus handwriting (6) and storage ash-pit (7), said fixed axis (3) and central shaft (4) are shorter than the length of blackboard (1), fixed axis (3) is fixed on the top of blackboard (1); Central shaft (4) is arranged on the bottom that hides grey soft board (5); On central shaft (4), be socketed with crocus handwriting (6), the below of crocus handwriting (6) is provided with storage ash-pit (7), stores up the below of grey channel opening (8) facing to crocus handwriting (6); The upper end that hides grey soft board (5) is connected on the fixed axis (3), can go up at fixed axis (3) and stretch and shrink; Crocus handwriting (6) and storage ash-pit (7) are movably connected on the fixed axis (3) through hiding grey soft board (5); Be provided with a power rail (9) at central shaft (4).
2. a kind of blackboard that can store the chalk dust blackboard eraser that has according to claim 1 is characterized in that said crocus handwriting (6) is a tubular structure, can go up at central shaft (4) when erasing the board (1) and roll.
3. a kind of blackboard that can store the chalk dust blackboard eraser that has according to claim 1; It is characterized in that; Said crocus handwriting (6) is the rolling structure more than three, can not go up at central shaft (4) when erasing the board (1) and roll, and rotates but can go up at central shaft (4).
4. according to claim 2 or 3 described a kind of blackboards that can store the chalk dust blackboard eraser that have, it is characterized in that said crocus handwriting (6) is removable.
5. a kind of blackboard that can store the chalk dust blackboard eraser that has according to claim 1 is characterized in that the grey soft board of said screening (5) is a canvas layer.
6. according to claim 1 or 5 described a kind of blackboards that can store the chalk dust blackboard eraser that have; It is characterized in that; Said storage ash-pit (7) or will hide the stubborn bathtub construction that is converted in lower end of grey soft board (5), or connect a bathtub construction in the lower end that hides grey soft board (5).
7. a kind of blackboard that can store the chalk dust blackboard eraser that has according to claim 1 is characterized in that, is provided with little pole at the two ends of central shaft (4), and one of them little pole and central shaft (4) flexibly connect, and strain with back-moving spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201946775U CN202174859U (en) | 2011-06-10 | 2011-06-10 | Blackboard capable of storing chalk dust and blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201946775U CN202174859U (en) | 2011-06-10 | 2011-06-10 | Blackboard capable of storing chalk dust and blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202174859U true CN202174859U (en) | 2012-03-28 |
Family
ID=45864761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201946775U Expired - Fee Related CN202174859U (en) | 2011-06-10 | 2011-06-10 | Blackboard capable of storing chalk dust and blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202174859U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244170A (en) * | 2017-06-27 | 2017-10-13 | 傅昕 | A kind of roller shutter type can automatic back-and-forth cleaning blackboard device |
| CN108715105A (en) * | 2018-05-31 | 2018-10-30 | 高文凭 | A kind of student is with preventing the chalk dust can Automatic erasing blackboard |
-
2011
- 2011-06-10 CN CN2011201946775U patent/CN202174859U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107244170A (en) * | 2017-06-27 | 2017-10-13 | 傅昕 | A kind of roller shutter type can automatic back-and-forth cleaning blackboard device |
| CN108715105A (en) * | 2018-05-31 | 2018-10-30 | 高文凭 | A kind of student is with preventing the chalk dust can Automatic erasing blackboard |
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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: 20120328 Termination date: 20140610 |