CN2564368Y - Dust absorbing chalk wiper - Google Patents
Dust absorbing chalk wiper Download PDFInfo
- Publication number
- CN2564368Y CN2564368Y CN 02253580 CN02253580U CN2564368Y CN 2564368 Y CN2564368 Y CN 2564368Y CN 02253580 CN02253580 CN 02253580 CN 02253580 U CN02253580 U CN 02253580U CN 2564368 Y CN2564368 Y CN 2564368Y
- Authority
- CN
- China
- Prior art keywords
- dust
- air
- panel
- utility
- fiber
- 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 discloses a dust absorbing chalk scraper. The utility model is mainly characterized in that air holes (14) are arranged on a fiber scraper panel (4) a separating board (11) is arranged on the back of the fiber scraper panel (4), and an air duct (13) and a dust cabin (10) are formed in a shell body by the separating board and the fiber scraper panel; an air inlet hole (7) is arranged on the separating board; a motor wind wheel (8) is arranged at the air inlet hole of the dust cabin; a ventilation is arranged on the shell body and a filtering net is arranged at the inner side of the ventilation. The utility model produces air flow by the rotation of the motor wind wheel so that a directional pressure difference is produced between the shell body and the surrounding of the shell body; when the chalk scraper is used to scrape the handwritings on the black board, the dust surrounding the chalk scraper is absorbed into the dust cabin with air; the air and the dust are separated by the filtering net, and then the dust is left in the dust cabin and the air is exhausted out of the ventilation; consequently, the utility model achieves the aim that dust does not spread around to harm the physical health of teachers and students and clean environment is kept.
Description
Technical field
The utility model relates to a kind of improvement invention of blackboard eraser.
Background technology
In the prior art, chalkboard eraser all is made of panel and hairbrush or fiber cloth, when this chalkboard eraser removes the chalk writing, dust arbitrarily spreads, particularly in the classroom of school, the pollution of dust directly jeopardizes the healthy of Faculty and Students, for solving the pollution problem of dust, the method that the dust that has a lot of people to seek in the formula material of chalk how to make chalk reduces, but its effect is not satisfactory.The pollution that how thoroughly to solve dust effectively is to want to solve and a unsolved difficult problem all the time.
Summary of the invention
In view of the problem that known technology exists, the purpose of this utility model aims to provide a kind of rational in infrastructure, and design science can absorb dust effectively, solves indoor environmental pollution, does not endanger the healthy dust suction chalkboard eraser of teachers and students.For achieving the above object, the utility model is finished as follows: this dust suction chalkboard eraser, include fiber and wipe panel, housing, it is characterized in that on the described fiber wiping panel pore being set, the back that described fiber is wiped panel is provided with division board, described division board is provided with air admission hole, described division board and fiber are wiped panel and form air channel and dust storehouse in housings, the air inlet position in described dust storehouse is provided with the motor wind wheel, and three faces of described housing are provided with transom window, and in the inboard of transom window screen pack are set, also be provided with the battery case of placing power supply machine running battery on the described housing, described pore is provided with rubber choke tooth outward, in order to reduce the air inlet area, increases air pressure.The air-flow that the rotation of motor wind wheel produces in the utility model makes the inside and outside formation of housing directed pressure poor, during the chalk writing of chalkboard eraser on the erasing blackboard, be drawn onto in the dust storehouse with air being distributed in chalkboard eraser dust on every side, through filter screen air is discharged transom window, reach the not free diffusion of dust, do not endanger the healthy of Faculty and Students, the purpose of clean environment in the holding chamber.
Description of drawings
The utility model has following accompanying drawing:
Fig. 1 is a front view of the present utility model;
Fig. 2 is a vertical view of the present utility model;
Fig. 3 is the cutaway view of the utility model Fig. 2 along A-A.
The specific embodiment
Accompanying drawing has been represented structure of the present utility model and embodiment, further describes the relevant details of embodiment below again.This dust suction chalkboard eraser, include fine high strength fibre and wipe panel 4, housing 2, described housing 2 is made of plastics, fiber is wiped on the panel 4 pore 14 is set, and be provided with division board 11 at the back that fiber is wiped panel 4, on the described division board 11 air admission hole 7 is set, described division board 11 and fiber are wiped panel 4 and form air channel 13 and dust storehouse 10 in housings 2, air inlet 7 places in dust storehouse 10 are provided with motor wind wheel 8, three faces on the described housing 2 are provided with transom window 3, be provided with screen pack 15 in the inboard of transom window 3, and battery case 6 is set on housing 2, battery 12 drive motors 9 in the battery case 6 are provided with rubber choke tooth 1 outside pore 14, this rubber choke tooth increases housing 2 inner air and outer air pressure differentials in order to reduce the air inlet area.During the utility model work, press switch 5, battery 12 gives motor 9 power supplies, motor 9 drives wind wheel 8 high speed rotations and makes the chalkboard eraser housing 2 inside and outside air-flows that produce, it is poor to form directed pressure, air-flow and the dust pore 14 on fiber wiping panel 4, air channel 13, air admission hole 7 on the division board 11 enters into dust storehouse 10, last air is discharged by transom window 3, and dust is trapped in the dust storehouse 10, because transom window 3 inboards are provided with screen pack 15, air and dust can be isolated, so dust can be trapped in the dust storehouse 10 effectively, reach the not purpose of free diffusion of dust, its absorptivity reaches more than 98%, through test, the noise that its motor 9 produces has only 60 decibels.When the utility model is not worked, place it on the inverse inhalation type cleaner, the dust in the dust storehouse 10 are wiped pore 14 sucking-offs on the panel 4 from fiber, are trapped in dust in the dust storehouse 10 with cleaning.The characteristics that the utility model flows according to air, air admission hole 7 on pore 14, air channel 13 and the division board 11 on the fiber wiping panel 4 is connected, leave enough spaces and conduct route for air and airborne dust, the motor wind wheel 8 air pressure official post air and the dust of rotation generation at a high speed moves towards certain orientation, reach the purpose that absorbs dust, compared with prior art, have substantive distinguishing features and progress.
Claims (4)
1, a kind of dust suction chalkboard eraser, comprise fiber wiping panel (4), housing (2), it is characterized in that on the described fiber wiping panel (4) pore (14) being set, the back that described fiber is wiped panel (4) is provided with division board (11), described division board (11) is provided with air admission hole (7), described division board (11) and fiber are wiped panel (4) and form air channel (13) and dust storehouse (10) in housings (2), the air admission hole (7) in described dust storehouse (10) locates to be provided with motor wind wheel (8), described housing (2) is provided with transom window (3), and is provided with screen pack (15) in the inboard of transom window (3).
2, dust suction chalkboard eraser according to claim 1 is characterized in that described transom window (3) is arranged on three of housing (2).
3, dust suction chalkboard eraser according to claim 1 is characterized in that described housing (2) is provided with battery case (6).
4, dust suction chalkboard eraser according to claim 1 is characterized in that the outer rubber choke tooth (1) that is provided with of described pore (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253580 CN2564368Y (en) | 2002-09-09 | 2002-09-09 | Dust absorbing chalk wiper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02253580 CN2564368Y (en) | 2002-09-09 | 2002-09-09 | Dust absorbing chalk wiper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2564368Y true CN2564368Y (en) | 2003-08-06 |
Family
ID=33722684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02253580 Expired - Fee Related CN2564368Y (en) | 2002-09-09 | 2002-09-09 | Dust absorbing chalk wiper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2564368Y (en) |
-
2002
- 2002-09-09 CN CN 02253580 patent/CN2564368Y/en not_active Expired - Fee Related
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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 |