CN2192482Y - Electric dust collecting eraser - Google Patents
Electric dust collecting eraser Download PDFInfo
- Publication number
- CN2192482Y CN2192482Y CN 94240070 CN94240070U CN2192482Y CN 2192482 Y CN2192482 Y CN 2192482Y CN 94240070 CN94240070 CN 94240070 CN 94240070 U CN94240070 U CN 94240070U CN 2192482 Y CN2192482 Y CN 2192482Y
- Authority
- CN
- China
- Prior art keywords
- dust
- negative pressure
- dust collector
- flexible pipe
- electric dust
- 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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Abstract
The utility model relates to a dust collector, particularly an electric dust collecting eraser. The utility model is characterized in that a speed reducer is arranged on one side of the rotating inwards fan of a negative pressure room, and the speed reducer is connected with a rotating eraser by a driving flexible shaft. A dust collector is arranged between the negative pressure room and the flexible shaft. The utility model can carry out the dust absorbing when erasing the chalk handwriting on the blackboard and can be used in the teaching field for having the advantages of simple structure, low cost, time saving in use, labor saving, protecting the air in the classrooms from being free from the dust pollution, etc.
Description
The utility model relates to dust exhaust apparatus, specifically a kind of electric dust absorption blackboard eraser.
As everyone knows, the writing in the teaching field on the blackboard must constantly be changed, and eliminates writing and generally adopts wooden blackboard eraser, promptly make by be provided with many groups of manes on a plank, its weak point is: dust is big during use, pollutes the classroom air, influence health of human body, inefficiency, people are big for overcoming dust, pollute the classroom air problem, once invented dust-free chalk, but there is chalk manufacturing cost height, the deficiency that is difficult for promoting the use of, and still have dust pollution classroom air; General dust catcher is made up of motor, rotary fan, dust collector, flexible pipe, suction nozzle, during the rotation of motor drives rotary fan, form negative pressure in the dust collector, the suction nozzle place is equipped with hairbrush, when mobile suction nozzle seesaws, hairbrush is rotatable, flexible pipe links to each other dust collector with suction nozzle, the covering at suction nozzle place is inhaled in the dust collector, to reach the purpose of dedusting, its weak point is to absorb the covering of body surface, can not eliminate the chalk writing on the blackboard.
The purpose of this utility model just is to overcome the deficiencies in the prior art, provides that a kind of use saves time, laborsaving and non-dusting electric dust absorption blackboard eraser.
For achieving the above object, feature of the present utility model is in the negative pressure chamber, rotary fan one side is provided with decelerator, input shaft of speed reducer is connected with the output shaft of motor, the output shaft of decelerator is connected with an end of driving snake, the other end of driving snake is wiped with commentaries on classics and is connected, driving snake is located at dust collector, in flexible pipe and the handgrip, flexible pipe is connected with negative pressure chamber through dust collector, dust collector is provided with filter by tip fastening box one end, and the other end is provided with check valve to be formed, and during use motor is placed the central authorities of blackboard top, connect power supply, the motor drives rotary fan, the driving snake rotation, driving snake drives to change wipes rotation, hand-held handgrip will change wiping and move along the writing that will eliminate on the blackboard, chalk writing on the blackboard is wiped, and the dust of this moment is wiped along changeing, handgrip, flexible pipe sucks in the dust collector.
The utility model realizes eliminating chalk writing and dust suction simultaneously on the blackboard owing to adopt driving snake to drive to change and wipe rotation, have simple in structure, cost is low, use save time, the laborsaving and not contaminated advantage of protection classroom air.
Description of drawings: accompanying drawing is a schematic diagram of the present utility model, also is the schematic diagram of a kind of embodiment.
Mark in the accompanying drawing: motor 1, rotary fan 2, decelerator 3, negative pressure chamber 4, filter 5, tip fastening box 6, last valve 7, lower valve 8, driving snake 9, flexible pipe 10, handgrip 11, bearing 12, commentaries on classics are wiped 13, are wiped shell 14, bearing 15.
Embodiment: as shown in the figure, motor 1, rotary fan 2, flexible pipe 10 adopts the common dust catcher motor of family expenses, rotary fan and flexible pipe, negative pressure chamber 4 adopts steel plate to make, decelerator 3 adopts worm-and-wheel gear, worm shaft is connected with motor output shaft, driving snake 9 adopts automobile rotational speed table transmission steel wire axle, driving snake 9 one ends are connected with worm-wheel shaft, the other end is wiped 13 with commentaries on classics and is connected, commentaries on classics wiping 13 is provided with many groups of manes by rotor surface and forms, change and wipe 13 by bearing 12,15 are fixed on plastics wipes in the shell 14, dust collector adds filter 5 by tip fastening box 6 upper ends, the lower end is provided with valve 7, lower valve 8 is formed, driving snake is located at dust collector, flexible pipe, in the handgrip, during use, motor 1 is installed in centre position, blackboard top, connects power supply, rotary fan 2, driving snake 9, change and wipe 13 rotations, under the effect of rotary fan 2, air-flow wipes 13 along handgrip by changeing, the flexible pipe direction flows, last valve 7, lower valve 8 is opened, and hand-held handgrip 11 moves along the writing on the blackboard, change wiping 13 removes writing, dust is sucked in the tip fastening box simultaneously, when cutting off the electricity supply, under the effect of gravity, last valve 7, lower valve 8 is closed, to reach the purpose of storage dirt.
Claims (3)
1, a kind of electric dust absorption blackboard eraser, be provided with motor, rotary fan, negative pressure chamber, flexible pipe, handgrip, wiping shell, change and wipe, it is characterized in that rotary fan one side is provided with decelerator in the negative pressure chamber, input shaft of speed reducer is connected with the output shaft of motor, the output shaft of decelerator is connected with an end of driving snake, the other end of driving snake is wiped with commentaries on classics and is connected, and flexible pipe is connected with negative pressure chamber through dust collector.
2, a kind of electric dust absorption blackboard eraser according to claim 1 is characterized in that said driving snake is located in dust collector, flexible pipe and the handgrip.
3, a kind of electric dust absorption blackboard eraser according to claim 1 is characterized in that said dust collector is provided with filter by tip fastening box one end, and the other end is provided with valve, lower valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94240070 CN2192482Y (en) | 1994-03-25 | 1994-03-25 | Electric dust collecting eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94240070 CN2192482Y (en) | 1994-03-25 | 1994-03-25 | Electric dust collecting eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2192482Y true CN2192482Y (en) | 1995-03-22 |
Family
ID=33847129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94240070 Expired - Fee Related CN2192482Y (en) | 1994-03-25 | 1994-03-25 | Electric dust collecting eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2192482Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600608A (en) * | 2013-11-29 | 2014-02-26 | 夏征梅 | Dust collection blackboard eraser |
| CN105125154A (en) * | 2015-09-21 | 2015-12-09 | 茹朝贵 | Cleaning device for crystal chandelier |
| CN113085422A (en) * | 2021-04-30 | 2021-07-09 | 江苏经贸职业技术学院 | Dust suction device for common blackboard |
-
1994
- 1994-03-25 CN CN 94240070 patent/CN2192482Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600608A (en) * | 2013-11-29 | 2014-02-26 | 夏征梅 | Dust collection blackboard eraser |
| CN105125154A (en) * | 2015-09-21 | 2015-12-09 | 茹朝贵 | Cleaning device for crystal chandelier |
| CN113085422A (en) * | 2021-04-30 | 2021-07-09 | 江苏经贸职业技术学院 | Dust suction device for common blackboard |
| CN113085422B (en) * | 2021-04-30 | 2022-04-15 | 江苏经贸职业技术学院 | Dust suction device for common blackboard |
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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 |