CN204278882U - A kind of self-cleaning blackboard - Google Patents
A kind of self-cleaning blackboard Download PDFInfo
- Publication number
- CN204278882U CN204278882U CN201420760197.4U CN201420760197U CN204278882U CN 204278882 U CN204278882 U CN 204278882U CN 201420760197 U CN201420760197 U CN 201420760197U CN 204278882 U CN204278882 U CN 204278882U
- Authority
- CN
- China
- Prior art keywords
- blackboard
- dust
- pulley
- self
- eraser
- 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
Links
Abstract
A kind of self-cleaning blackboard, comprises blackboard, the rear portion of blackboard is provided with iron plate, be provided with multiple pulley at blackboard top and form assembly pulley, pulley is connected on the reel of dc motor by connection cord, and the left and right sides of blackboard is provided with guide rail, in each guide rail, install slide block, blackboard eraser and slide block connect as one, blackboard eraser is connected by nylon rope with pulley, is provided with spongy layer bottom eraser, and middle part is provided with magnetic patch, top is provided with dust absorption fan, and dust absorption fan is self-powered and by switch control rule.The utility model can the control panel automatic operation of wiping, and is realized the recovery of dust by dust absorption fan, prevents dust to the harm of human body, achieve operation automation." U " shape groove arranged bottom blackboard, not only can reduce dust can also collect chalk dust, realizes recycling, and being also convenient to chalk must place simultaneously.
Description
Technical field
The utility model relates to a kind of educational aid, and what be specifically related to is a kind of self-cleaning blackboard.
Background technology
Blackboard is a kind of educational aid, and blackboard eraser is the device for clean blackboard.At present, if use ordinary blackboard eraser to come, in the process of the writing on erasing blackboard, more dust can be produced, these dust not only contaminated air, but also the health of harm teachers and students; In addition ordinary blackboard eraser needs manual operation when clearing up blackboard, and not only time-consuming but also require great effort, automaticity is not high.
Summary of the invention
For solving the dust of chalk to the harm of health, improve the automaticity of cleaning, the utility model provides a kind of self-cleaning blackboard.
In order to solve the problem, the utility model adopts following technical scheme: a kind of self-cleaning blackboard, comprise blackboard, the rear portion of blackboard is provided with iron plate, be provided with multiple pulley at blackboard top and form assembly pulley, pulley is connected on the reel of dc motor by connection cord, the left and right sides of blackboard is provided with guide rail, in each guide rail, slide block is installed, blackboard eraser and slide block connect as one, blackboard eraser is connected by nylon rope with pulley, spongy layer is provided with bottom eraser, middle part is provided with magnetic patch, top is provided with dust absorption fan, dust absorption fan is self-powered and by switch control rule.
Described dc motor is driven respectively by AC power, dc source, is driven under normal circumstances by AC power, and dc source is as subsequent use.
" U " shape groove arranged in the bottom of blackboard.
The self-cleaning blackboard that the utility model provides, be provided with the parts such as guide rail, slide block, iron plate, pulley, nylon rope, dc motor, AC power, dc source, switch, inverter, blackboard eraser, sponge, dust absorption fan, can control panel wipe automatic operation, and the recovery of dust is realized by dust absorption fan, prevent dust to the harm of human body, achieve operation automation." U " shape groove arranged bottom blackboard, not only can reduce dust can also collect chalk dust, realizes recycling, and being also convenient to chalk must place simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Structure of the present utility model is as shown in Figure 1: a kind of self-cleaning blackboard, comprise blackboard 16, the rear portion of blackboard 16 is provided with iron plate 14, be provided with multiple pulley 7 at blackboard 16 top and form assembly pulley, pulley 7 is connected on the reel of dc motor 6 by connection cord 11, the left and right sides of blackboard 16 is provided with guide rail 15, in each guide rail 15, slide block 13 is installed, blackboard eraser 12 and slide block 13 connect as one, blackboard eraser 12 is connected by nylon rope 11 with pulley 7, spongy layer is provided with bottom eraser 12, middle part is provided with magnetic patch 8, top is provided with dust absorption fan 9, dust absorption fan 9 is self-powered and controlled by switch 10.Described dc motor 6 is driven respectively by AC power 2, dc source 4, is driven under normal circumstances by AC power 2, and dc source 4 is as subsequent use." U " shape groove 17 arranged in the bottom of blackboard 16.
Below in conjunction with accompanying drawing, concrete method of operating is described in detail.
(1) close switch 3, be direct current by inverter 1 by AC conversion, dc motor 6 is driven to rotate, drive connection cord 11 and pulley 7 that blackboard eraser 16 is moved down, apply the power perpendicular to blackboard 16 by means of the attraction between magnetic patch 8 and iron plate 14 to blackboard eraser 16 simultaneously, blackboard eraser is contacted with blackboard, starts blackboard wiping, until cleaning whole blocks blackboard.
(2) change the polarity at direct current generator 6 two ends, dc motor is reversed, makes blackboard eraser rise to top by bottom, in this process, blackboard eraser by blackboard-cleaning one time, improves cleannes again.
(3) in above process, dust absorption fan 9 is controlled by dust absorption fan switch 10, always in running order, to absorb the dust of generation, reduces dust to the injury of human body.
(4) dc source 4 is stand-by power supplies, is controlled by switch 5, is in order to blackboard eraser after preventing from having a power failure cannot work.
Claims (2)
1. a self-cleaning blackboard, comprise blackboard (16), it is characterized in that: the rear portion of blackboard (16) is provided with iron plate (14), be provided with multiple pulley (7) at blackboard (16) top and form assembly pulley, pulley (7) is connected on the reel of dc motor (6) by connection cord (11), the left and right sides of blackboard (16) is provided with guide rail (15), in each guide rail (15), slide block (13) is installed, blackboard eraser (12) and slide block (13) connect as one, blackboard eraser (12) is connected by nylon rope (11) with pulley (7), eraser (12) bottom is provided with spongy layer, middle part is provided with magnetic patch (8), top is provided with dust absorption fan (9), dust absorption fan (9) is self-powered and controlled by switch (10).
2. self-cleaning blackboard according to claim 1, is characterized in that: " U " shape groove (17) arranged in the bottom of blackboard (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420760197.4U CN204278882U (en) | 2014-12-08 | 2014-12-08 | A kind of self-cleaning blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420760197.4U CN204278882U (en) | 2014-12-08 | 2014-12-08 | A kind of self-cleaning blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204278882U true CN204278882U (en) | 2015-04-22 |
Family
ID=52862074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420760197.4U Expired - Fee Related CN204278882U (en) | 2014-12-08 | 2014-12-08 | A kind of self-cleaning blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204278882U (en) |
-
2014
- 2014-12-08 CN CN201420760197.4U patent/CN204278882U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151208 |
|
| EXPY | Termination of patent right or utility model |