CN203957629U - Automatic erasing dust-free black board - Google Patents
Automatic erasing dust-free black board Download PDFInfo
- Publication number
- CN203957629U CN203957629U CN201420384849.9U CN201420384849U CN203957629U CN 203957629 U CN203957629 U CN 203957629U CN 201420384849 U CN201420384849 U CN 201420384849U CN 203957629 U CN203957629 U CN 203957629U
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- blackboard
- dust
- black board
- automatic erasing
- free black
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Abstract
The problem existing for existing blackboard, the utility model provides a kind of automatic erasing dust-free black board, and it adopts annular blackboard surface, and write in front, wipe at the back side.Write completely, can hand or electronic writing surface be forwarded to and carry out auto-erasing behind, also can retain written contents, greatly increased the area of writing, and Rotary Blackboard can write at height and position arbitrarily, be suitable for differing heights crowd's needs.The chalk dust of wiping is collected in dust collecting box automatically, regularly removes, and has realized the function of dustless environment protecting.Length and the traditional blackboard of blackboard panel of the present utility model are suitable, and still, it is high that aspect ratio traditional blackboard is wanted.Therefore, can establish above it a projection screen, the height of projection screen only accounts for a part for blackboard height, and the length-width ratio of blackboard remainder and traditional blackboard is suitable.In when teaching, writing on the blackboard and projection can be carried out simultaneously, and writing surface joins and can move dust absorption blackboard eraser, can local increase and decrease written contents, improve the quality of teaching and effect.
Description
Technical field
The utility model relates to the writing device in culture and education field, particularly a kind of automatic erasing dust-free black board.
Background technology
Blackboard is as a kind of educational aid, use amount is very large, the blackboard generally using at present greatly mainly with aluminium alloy as framework, to be coated with the wood materials of blackboard paint or other hardmetal materials as writing panel, using materials such as sponge, cotton hairbrush as blackboard eraser, realize the object of writing and wiping.In use, the problem that traditional blackboard exists is: (1) write area is limited, can not meet user's the demand of writing; (2) when adopting multimedia teaching, because projection screen can cover the part of blackboard, teacher can not be easily at the enterprising andante book of blackboard; (3) need manually wipe, waste time and energy, and it is not good enough to wipe effect, impact is write again; (4) a large amount of dust polluting environments that produce, have had a strong impact on the healthy of user, also indoor electrical equipment are produced to harm simultaneously.
utility model content
The purpose of this utility model is to provide a kind of new type blackboard that can convenient use in teaching and work exchange, and in order to achieve the above object, the utility model has been taked following technical scheme:
A kind of automatic erasing dust-free black board, comprise the blackboard body, skeleton, blackboard eraser, projection screen and the dust collecting box that are formed by upper cylinder, bottom roll, endless belt-shaped blackboard surface, it is characterized in that: described upper cylinder is installed on the top of skeleton, described bottom roll is installed on the bottom of skeleton; Described blackboard surface annular is wrapped on cylinder and bottom roll, rotates arbitrary rolling and drives another cylinder to rotate by described endless belt-shaped blackboard surface; Described blackboard eraser is positioned at the back side of the endless belt-shaped blackboard surface of described blackboard body; Described dust collecting box removably connects described skeleton, and described skeleton, blackboard body and blackboard eraser are sealed, and only exposes the front of endless belt-shaped blackboard surface; Described projection screen is positioned at the top in described endless belt-shaped blackboard surface front; Length and the traditional blackboard of described blackboard are suitable, and aspect ratio traditional blackboard is high.
Further, the skeleton of described automatic erasing dust-free black board embeds in described dust collecting box, and the gap between described blackboard body and dust collecting box is provided with seal.
Further, perforate is arranged at the funnel shaped bottom of the dust collecting box of described automatic erasing dust-free black board, the chalk dust accumulating for clearing up use procedure.
Further, a side of described upper cylinder reserved connects the axle of motor, for connecting after motor cylinder on automatic rotating, drives the writing surface of described blackboard surface to roll.
Further, a side of described bottom roll has handwheel, for hand rotation bottom roll, drives the writing surface of described blackboard surface to roll.
Further, the inner side of described endless belt-shaped blackboard surface is lined with a blackboard body liner plate, and the interior space dimension of size, shape and the endless belt-shaped blackboard of described liner plate is suitable.
Further, described endless belt-shaped blackboard surface is made with rubber.
Further, on described blackboard eraser, there is regulating handle, regulate the distance of the face of wiping of blackboard eraser and described banded black panel, be transferred to open-set mark, do not wipe the content of having write.
Further, the writing surface of described automatic erasing dust-free black board also comprises a manual movable dust absorption blackboard eraser, can locally increase and decrease written contents, facilitates teachers and students' interactive teaching and learning.
The beneficial effects of the utility model are: it adopts annular blackboard, and write in front, wipe at the back side.Write completely, can hand or electronic writing surface be forwarded to and carry out auto-erasing behind.Also can retain written contents, greatly increase the area of writing, and Rotary Blackboard can write at any height and position, be suitable for differing heights crowd's needs.The chalk dust of wiping is collected in dust collecting box automatically, regularly removes, and has realized the function of dustless environment protecting.Length and the traditional blackboard of blackboard panel of the present utility model are suitable, and still, it is high that aspect ratio traditional blackboard is wanted.Therefore, can establish above it a projection screen, the height of projection screen only accounts for a part for blackboard height, and the length-width ratio of remainder and traditional blackboard is suitable.In when teaching, writing on the blackboard and projection can be carried out simultaneously, and writing surface joins movable dust absorption blackboard eraser, can local increase and decrease written contents, improve the quality of teaching and effect.
Brief description of the drawings
Fig. 1 is fundamental diagram of the present utility model;
Fig. 2 is cylinder assembling schematic diagram of the present utility model;
Fig. 3 (a) is outside drawing of the present utility model;
Fig. 3 (b) is cut-away view of the present utility model;
Fig. 3 (c) is writing surface schematic diagram of the present utility model;
Fig. 3 (d) is the face schematic diagram of wiping of the present utility model.
Detailed description of the invention
Below in conjunction with brief description of the drawings and detailed description of the invention, the utility model is further illustrated.
The utility model proposes a kind of automatic erasing dust-free black board, comprise cylinder, bottom roll, endless belt-shaped blackboard surface, skeleton, blackboard eraser, dust collecting box, projection screen and manual movable dust-absorbing blackboard.Wherein, skeleton is the support of the every other parts of automatic erasing dust-free black board of the present utility model, and upper cylinder, bottom roll are installed on respectively top and the bottom of skeleton.Upper cylinder, bottom roll, endless belt-shaped blackboard surface have formed blackboard body.
As shown in Figure 1, operation principle of the present utility model is, upper cylinder rotates around axle II, and bottom roll rotates around axle I, endless belt-shaped blackboard surface is wrapped on cylinder and bottom roll circlewise, rotates arbitrary cylinder and drives another cylinder to rotate by described endless belt-shaped blackboard surface.Upper cylinder connect after motor cylinder on automatic rotating, drive the writing surface of endless belt-shaped blackboard surface to roll.One side of bottom roll, by handwheel hand rotation bottom roll, drives the writing surface of endless belt-shaped blackboard surface to roll.
Accompanying drawing 2 is assembling schematic diagrames of the utility model cylinder.Rolling comprises bearing, bearing insert, holding screw, drive, sleeve and drum shaft etc.Wherein, the drum shaft connection bearing of cylinder, bearing and bearing insert are fixedly installed in the top of skeleton and the two ends of bottom.
From accompanying drawing 3, can find out, upper cylinder is positioned at the top of skeleton, and bottom roll is positioned at the bottom of skeleton; Blackboard eraser is installed on the back side (wiping face) of endless belt-shaped blackboard surface, is fixed on described skeleton; Dust collecting box is connecting framework removably, and described blackboard body, skeleton and the blackboard eraser being made up of upper cylinder, bottom roll, endless belt-shaped blackboard surface sealed, and has only exposed the front (being writing surface) of endless belt-shaped blackboard surface.Gap between described blackboard body and dust collecting box is provided with seal, such mounting means, and the dust can ensure blackboard eraser work time is stayed in dust collecting box; Projection screen is positioned at the top in described blackboard front; Length and the traditional blackboard of the utility model blackboard are suitable, and still, it is high that aspect ratio traditional blackboard is wanted.
The operation principle of automatic erasing dust-free black board of the present utility model is as follows: rotate handwheel or starter motor, forwarded to the behind of blackboard by drum having rotating ring shape blackboard writing face, carried out the content of erasing writing by auto-erasing blackboard eraser, the chalk dust of wiping packs in dust collecting box.Dust collecting box is removably contained in a seal cavity at the blackboard back side, because Action of Gravity Field chalk dust is pooled to the funnel shaped bottom of disposable box, has effectively prevented the diffusion of dust, and can regularly remove by the reserved outlet below disposable box.
Blackboard eraser can be fixed on axle, and pedestal is on skeleton, and the position by regulating handle gear regulating shaft on skeleton, can regulate blackboard eraser and the distance of wiping face.Be transferred to open-set mark, can not wipe the content of having write.And separately join one and can move dust absorption blackboard eraser, can locally increase and decrease written contents, improve the quality of teaching and effect.
The blackboard surface of automatic erasing dustless blackboard is to make with rubber, can ensure can not produce the problem of sideslip.
The writing height of automatic erasing dustless blackboard can change arbitrarily, completes to adapt to differing heights crowd, to allow write under more comfortable condition.This automatic erasing dustless blackboard is higher than traditional blackboard, and the student who is sitting in side can not produce eye and shake, and has good visual effect, and blackboard top edge is hung a projection cloth, and screen width is less than the width of blackboard, is highly about 1/3rd of blackboard height.When putting down screen, when startup projecting apparatus carries out electronic teaching, left surface and the L shaped blackboard part reserving below can better coordinate with PPT, complement one another, and learn from other's strong points to offset one's weaknesses.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. an automatic erasing dust-free black board, it is characterized in that: comprise the blackboard body, skeleton, blackboard eraser, projection screen and the dust collecting box that are formed by upper cylinder, bottom roll, endless belt-shaped blackboard surface, it is characterized in that: described upper cylinder is installed on the top of skeleton, described bottom roll is installed on the bottom of skeleton; Described blackboard surface annular is wrapped on cylinder and bottom roll, rotates arbitrary cylinder and drives another cylinder to rotate by described endless belt-shaped blackboard surface; Described blackboard eraser is positioned at the back side of the endless belt-shaped blackboard surface of described blackboard body; Described dust collecting box removably connects described skeleton, and described skeleton, blackboard body and blackboard eraser are sealed, and only exposes the front of endless belt-shaped blackboard surface; Described projection screen is positioned at the top in described endless belt-shaped blackboard surface front; Length and the traditional blackboard of described blackboard are suitable, and aspect ratio traditional blackboard is high.
2. automatic erasing dust-free black board according to claim 1, is characterized in that: the skeleton of described automatic erasing dust-free black board embeds in described dust collecting box, and the gap between described blackboard body and dust collecting box is provided with seal.
3. automatic erasing dust-free black board according to claim 1, is characterized in that: there is perforate the funnel shaped bottom of dust collecting box of described automatic erasing dust-free black board, the chalk dust accumulating for clearing up use procedure.
4. automatic erasing dust-free black board according to claim 1, is characterized in that: a side of described upper cylinder reserved connects the axle of motor, for connecting after motor cylinder on automatic rotating, drives the writing surface of described blackboard surface to roll.
5. automatic erasing dust-free black board according to claim 1, is characterized in that: a side of described bottom roll has handwheel, for hand rotation bottom roll, drives the writing surface of described blackboard surface to roll.
6. automatic erasing dust-free black board according to claim 1, is characterized in that: the inner side of described endless belt-shaped blackboard surface is lined with a blackboard body liner plate, and the interior space dimension of size, shape and the endless belt-shaped blackboard of described liner plate is suitable.
7. automatic erasing dust-free black board according to claim 1, is characterized in that: described endless belt-shaped blackboard surface rubber is made.
8. automatic erasing dust-free black board according to claim 1, is characterized in that: on described blackboard eraser, have handle, regulate the distance at the back side of blackboard eraser and described banded black panel, be transferred to open-set mark, do not wipe the content of having write.
9. automatic erasing dust-free black board according to claim 1, is characterized in that: the writing surface of described automatic erasing dust-free black board also comprises a manual movable dust absorption blackboard eraser, can locally increase and decrease written contents, facilitates teachers and students' interactive teaching and learning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420384849.9U CN203957629U (en) | 2014-07-11 | 2014-07-11 | Automatic erasing dust-free black board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420384849.9U CN203957629U (en) | 2014-07-11 | 2014-07-11 | Automatic erasing dust-free black board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203957629U true CN203957629U (en) | 2014-11-26 |
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ID=51918259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420384849.9U Expired - Fee Related CN203957629U (en) | 2014-07-11 | 2014-07-11 | Automatic erasing dust-free black board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203957629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105654788A (en) * | 2016-02-12 | 2016-06-08 | 魏长同 | Classroom matched device |
-
2014
- 2014-07-11 CN CN201420384849.9U patent/CN203957629U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105654788A (en) * | 2016-02-12 | 2016-06-08 | 魏长同 | Classroom matched device |
| CN105654788B (en) * | 2016-02-12 | 2018-07-13 | 江苏云敩信息科技有限公司 | Classroom corollary apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20150711 |
|
| EXPY | Termination of patent right or utility model |