CN2841363Y - Dust-free chalk is wiped - Google Patents
Dust-free chalk is wiped Download PDFInfo
- Publication number
- CN2841363Y CN2841363Y CN 200520114983 CN200520114983U CN2841363Y CN 2841363 Y CN2841363 Y CN 2841363Y CN 200520114983 CN200520114983 CN 200520114983 CN 200520114983 U CN200520114983 U CN 200520114983U CN 2841363 Y CN2841363 Y CN 2841363Y
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- CN
- China
- Prior art keywords
- dust
- chalk
- absorbing
- wiped
- storage battery
- 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
Dust-free chalk is wiped, and its objective is chalk dust harm teacher, student, the problem that can not collect chalk dust of solving.It mainly is made of housing, switch, storage battery formula motor, dust-absorbing fan, protection network, dust-absorbing box, sponge with holes.It is characterized in that: the lower end lead of storage battery formula motor is connected the lower end of switch, the lower end male thread of storage battery formula motor is connected the centre bore of dust-absorbing fan, the lower end of dust-absorbing fan is bonded at the upper end of protection network, the lower end of protection network is bonded at the upper end of dust-absorbing box, utilize the equipment of plastics factory, produce in batches, with the demand of supply educational circles.
Description
(1) technical field:
The utility model relates to dust-free chalk to be wiped, and divides the technical field of the cleaning device group that belongs to blackboard or slabstone by International Patent Classification (IPC) (IPC).
(2) background technology:
At present, the needs that the technology about the cleaning device group of blackboard or slabstone existing and that once had is wiped dust-free chalk were all done very fruitful effort, also once designed many outstanding technical schemes.As declaring of the Decree of Patent Office of China in 1996 by An Liwei, Granted publication is that CN2217523Y China Patent No. (ZL) is: ZL94222092.7 number utility model patent title is the utility model patent of " dustproof chalkboard eraser ", the technical scheme that is adopted, technical elements in the cleaning device group of blackboard or slabstone is a routine of great value invention, and it has solved chalkboard eraser dustproof technical problem effectively.But still have some deficits, it also is difficult to solve chalk dust harm teacher, student, the technical problem that can not collect chalk dust.
(3) summary of the invention:
The purpose of this utility model is to provide a kind of dust-free chalk to wipe.To solve chalk dust harm teacher, student, the technical problem that can not collect chalk dust.
The new technical scheme that above-mentioned technical problem to be solved in the utility model adopted is: dust-free chalk of the present utility model is wiped, and mainly is made of housing, switch, storage battery formula motor, dust-absorbing fan, protection network, dust-absorbing box, sponge with holes.
In shape, structure and combination thereof, dust-free chalk of the present utility model is wiped the essential features that has with immediate prior art: the lower end of housing is connected to the upper end of dust-absorbing box, the lower end of dust-absorbing box is bonded at the upper end of sponge with holes, be combined into stepped construction, function has been the effect of blackboard eraser.In shape, structure and combination thereof, dust-free chalk of the present utility model is wiped the technical characterictic different with immediate prior art: the lower end lead of storage battery formula motor is connected the lower end of switch, the lower end male thread of storage battery formula motor is connected the centre bore of dust-absorbing fan, the structure that is combined into one, function has been the effect of dust suction.The lower end of dust-absorbing fan is bonded at the upper end of protection network, and the lower end of protection network is bonded at the upper end of dust-absorbing box, and the structure that is combined into one, function have been the effects of shoulder pad.Chalk dust harm teacher, student that dust-free chalk of the present utility model is wiped have so just been reached, the purpose that can not collect chalk dust.
The beneficial effect that the dust-free chalk of utility model is wiped is that the utility model is to solve chalk dust harm teacher, student, and the technical scheme that technical problem adopted that can not collect chalk dust has been compared two place's advantage and improvement with existing with the technology about the cleaning device group of blackboard or slabstone that once had:
First, because the lower end lead that has designed storage battery formula motor in the technical scheme that dust-free chalk of the present utility model is wiped is connected the lower end of switch, the lower end male thread of storage battery formula motor is connected the centre bore of dust-absorbing fan, and the structure that is combined into one is so the technical problem of easier solution dust suction.
The second, owing to designed the upper end that the lower end of dust-absorbing fan is bonded at protection network in the technical scheme that dust-free chalk of the present utility model is wiped, the lower end of protection network is bonded at the upper end of dust-absorbing box, and the structure that is combined into one is so the technical problem of easier solution shoulder pad.
(4) description of drawings:
Accompanying drawing provides the structural representation that dust-free chalk of the present utility model is wiped;
Fig. 1: be the overall structure schematic diagram that dust-free chalk of the present utility model is wiped;
The label declaration at each position in the schematic diagram:
1 housing, 2 switches, 3 storage battery formula motors, 4 dust-absorbing fans
5 protection networks, 6 dust-absorbing box, 7 sponges with holes
(5) specific embodiment:
Below in conjunction with accompanying drawing, dust-free chalk of the present utility model to be wiped to realizing solve chalk dust harm teacher, student, the optimal way that can not collect the technical scheme that the technical problem of chalk dust takes is described further:
Its static structure: see also accompanying drawing: as shown in the figure, dust-free chalk of the present utility model is wiped, and mainly is made of housing 1, switch 2, storage battery formula motor 3, dust-absorbing fan 4, protection network 5, dust-absorbing box 6, sponge with holes 7.Its major part switch 2, storage battery formula motor 3, dust-absorbing fan 4, protection network 5, sponge with holes 7 are selected for use by market.Its housing 1 is a rectangle ghost shape, is material with plastics, through the punch process manufacturing.Its dust-absorbing box 6 is rectangle ghost shapes, is material with plastics, through the punch process manufacturing.
In shape, structure and combination thereof, dust-free chalk of the present utility model is wiped the essential features that has with immediate prior art: the lower end of housing 1 is connected to the upper end of dust-absorbing box 6, the lower end of dust-absorbing box 6 is bonded at the upper end of sponge 7 with holes, be combined into stepped construction, function has been the effect of blackboard eraser.In shape, structure and combination thereof, dust-free chalk of the present utility model is wiped the technical characterictic different with immediate prior art: the lower end lead of storage battery formula motor 3 is connected the lower end of switch 2, the lower end male thread of storage battery formula motor 3 is connected the centre bore of dust-absorbing fan 4, the structure that is combined into one, function has been the effect of dust suction.The lower end of dust-absorbing fan 4 is bonded at the upper end of protection network 5, and the lower end of protection network 5 is bonded at the upper end of dust-absorbing box 6, and the structure that is combined into one, function have been the effects of shoulder pad.
Below by using method, further set forth dust-free chalk of the present utility model and wipe the dynamic structure relation: in use, when needs erase the board, according to motor, pneumatic power principle, at first open switch 2, driven by motor dust-absorbing fan 4 rotates then, then chalk dust is sucked dust-absorbing box 6 again, thereby finishes erasing the board of task.So just realize chalk dust harm teacher, student that dust-free chalk of the present utility model is wiped, can not collect the technical scheme of the technical problem of chalk dust.
Realize that preferred plan of the present utility model is is material with plastics, utilize the basic equipment of plastics factory, take mass production,, so just can realize the practical value and the economic worth of dust-free chalk wiping of the present utility model better with the demand of supply educational circles.
Claims (1)
1. dust-free chalk is wiped, it is by housing (1), switch (2), storage battery formula motor (3), dust-absorbing fan (4), protection network (5), dust-absorbing box (6), sponge with holes (7) constitutes, the lower end of its housing (1) is connected to the upper end of dust-absorbing box (6), the lower end of dust-absorbing box (6) is bonded at the upper end of sponge with holes (7), it is characterized in that: the lower end lead of storage battery formula motor (3) is connected the lower end of switch (2), the lower end male thread of storage battery formula motor (3) is connected the centre bore of dust-absorbing fan (4), the lower end of dust-absorbing fan (4) is bonded at the upper end of protection network (5), and the lower end of protection network (5) is bonded at the upper end of dust-absorbing box (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520114983 CN2841363Y (en) | 2005-08-03 | 2005-08-03 | Dust-free chalk is wiped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520114983 CN2841363Y (en) | 2005-08-03 | 2005-08-03 | Dust-free chalk is wiped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2841363Y true CN2841363Y (en) | 2006-11-29 |
Family
ID=37445259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520114983 Expired - Fee Related CN2841363Y (en) | 2005-08-03 | 2005-08-03 | Dust-free chalk is wiped |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2841363Y (en) |
-
2005
- 2005-08-03 CN CN 200520114983 patent/CN2841363Y/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 |