CN201573449U - Chalk eraser capable of dust absorption - Google Patents
Chalk eraser capable of dust absorption Download PDFInfo
- Publication number
- CN201573449U CN201573449U CN2009202583589U CN200920258358U CN201573449U CN 201573449 U CN201573449 U CN 201573449U CN 2009202583589 U CN2009202583589 U CN 2009202583589U CN 200920258358 U CN200920258358 U CN 200920258358U CN 201573449 U CN201573449 U CN 201573449U
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- CN
- China
- Prior art keywords
- cotton
- chalkboard eraser
- blower fan
- fan
- dust absorption
- 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
A chalk eraser capable of dust absorption relates to teaching aids. The chalk eraser is characterized in that a powder holding box is arranged in a chalk eraser main body; cotton wipers are arranged on the lower surface of the main body; dust absorption openings are formed among the cotton wipers; a fan is arranged on one side of the powder holding box; filtering nets are arranged at an inlet of the fan; the inlet is connected with the powder holding box; the powder holding box is communicated with the dust absorption openings; and an outlet of the fan is connected with the filtering nets. In addition, the fan is a fan capable of bidirectional absorption and blowing; 2 to 5 layers of filtering nets are arranged at the inlet of the fan; rectangular sealing strips are arranged around the cotton wipers; and a plurality of dust absorption holes are also formed around the bottom surface of the chalk eraser. The utility model has the following advantages of reasonable structure, simple manufacture, convenient promotion and application, good dust absorption effect, easy cleaning, and convenience for recycling chalk dust.
Description
Technical field:
The utility model relates to teaching aid, further is chalkboard eraser, especially can inhale the chalkboard eraser of chalk dust.
Background technology:
At present, in middle and primary schools impart knowledge to students especially rural primary and secondary school teaching, still continue to use chalk.And the problem of chalk ash pollution is not still effectively solved.Sometimes, a class gets off, and chalk dust flies upward everywhere, has had a strong impact on the healthy of Faculty and Students.The chalkboard eraser that some inventions propose exists shortcomings such as pick-up performance is undesirable, use is inconvenient, the difficult cleaning of dust-absorbing box.
Summary of the invention:
But the purpose of this utility model is to provide a kind of dust suction chalkboard eraser, and it is easy to use, pick-up performance good, be easy to cleaning.
The purpose of this utility model realizes by following scheme: but the dust suction chalkboard eraser is characterized in that: and being provided with the Sheng powder box in the chalkboard eraser main body, being provided with cotton the wiping below the main body, is suction port between cotton the wiping; One side of containing powder box is provided with blower fan, and the import department of blower fan is provided with filter screen, and import connects contains powder box, contains powder box and communicates with suction port, and the blower fan outlet connects filter screen.
The purpose of this utility model can further realize by following scheme:
The blower fan of blower fan for can two-way suction blowing, can by certain to air draught become this to blowing.
The filter screen of the import department of blower fan is a multilayer, generally selects 2～5 layers, is preferably 3～4 layers.
Wipe periphery in cotton and be provided with sealing strip, sealing strip is rectangular.
Also be provided with some air suction openings around the pen wiping main body bottom surface.
The cotton wiping with suction port is strip alternately; Also can be made into cotton wipe to be with suction port intersect the shape that misplaces.
The cotton wiping with sealing strip made with fur.
The utlity model has following advantage: 1, structure is rationally made simply, is convenient to promote the use of; 2, easy to use, pick-up performance is good; 3, be easy to cleaning, be convenient to the recycling of chalk dust.
Description of drawings:
Fig. 1 is the utility model generalized section, and Fig. 2 is the utility model polycrystalline substance schematic diagram.
Among the figure: 1 is the chalkboard eraser main body, and 2 for containing the powder box lid, and 3 is the blower fan lid, and 4 for containing powder box, and 5 is filter screen, and 6 is blower fan, and 7 is cotton the wiping, and 8 is suction port, and 9 is sealing strip, and 10 is air suction opening.
The specific embodiment:
Below in conjunction with embodiment utility model is further described:
Embodiment 1: as shown in Figure 1 and Figure 2, be provided with in the chalkboard eraser main body 1 and contain powder box 4, promptly containing powder box 4 is a cavity, is provided with below the main body cottonly to wipe 7, and cotton to wipe 7 can be that raw materials such as fur or felt are made, and cotton to wipe 7 be suction port 8; Cotton wiping 7 can be arranged to regular strip alternately with suction port 8, also can be set to intersection dislocation shape; Also be provided with air suction opening 10 around chalkboard eraser main body 1 bottom surface, to improve the effect of dust suction, the back back side of chalkboard eraser main body 1 is provided with contains powder box lid 2, cover the 2 adjacent blower fan lids 3 that are provided with containing powder box, blower fan 6 and battery are located therein, and fan switch is located on the chalkboard eraser main body 1, blower fan 6 connects import and outlet by pipe, the import department of blower fan 6 is provided with filter screen, and filter screen can be multilayer (generally selecting 2～5 layers), and multistorey strainer mesh is the different filter screen in aperture; Import connects contains powder box 4, contains powder box 4 and communicates with suction port 8, exports by pipe to connect filter screen 5, for guaranteeing pick-up performance, can wipe 7 peripheries in cotton sealing strip 9 is set, and sealing strip 9 can adopt the material the same with cotton wiping to make.
During use, open blower fan, use chalkboard eraser to get final product, when wiping, the chalk pruinescence sucks to be contained in the powder box.Because the existence of filter screen, the chalk powder can not fly out.
After the use, can open powder box lid, dust be fallen preserve in certain container, forms a certain amount of after, can be used for the processing recovery.During recovery, can use the some chalk models of customization, the chalk powder is added water, after stirring, add the chalk model, push by adding pressure bar again, extrude after the moulding, airing or dry after can use.
The utility model need be cleared up after using certain hour, and during cleaning, available water also can be started blower fan, makes its counter-rotating, promptly transfers blowing to by air draught, thereby helps the cleaning of filter screen.
Claims (8)
1. but dust suction chalkboard eraser is characterized in that: being provided with the Sheng powder box in the chalkboard eraser main body, being provided with cotton the wiping below the main body, is suction port between cotton the wiping; One side of containing powder box is provided with blower fan, and the import department of blower fan is provided with filter screen, and import connects contains powder box, contains powder box and communicates with suction port, and the blower fan outlet connects filter screen.
2. but dust suction chalkboard eraser according to claim 1 is characterized in that: the blower fan of blower fan for can two-way suction blowing.
3. but dust suction chalkboard eraser according to claim 1 is characterized in that: the filter screen of the import department of blower fan is the 2-5 layer.
4. but dust suction chalkboard eraser according to claim 1 is characterized in that: wipe periphery in cotton and be provided with sealing strip, sealing strip is rectangular.
5. but dust suction chalkboard eraser according to claim 1 is characterized in that: also be provided with some air suction openings around the pen wiping main body bottom surface.
6. but dust suction chalkboard eraser according to claim 1 is characterized in that: the cotton wiping with suction port is strip alternately.
7. but dust suction chalkboard eraser according to claim 1 is characterized in that: cotton wipe to be with suction port intersect the shape that misplaces.
8. but dust suction chalkboard eraser according to claim 1 is characterized in that: the cotton wiping with sealing strip made with fur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202583589U CN201573449U (en) | 2009-11-24 | 2009-11-24 | Chalk eraser capable of dust absorption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202583589U CN201573449U (en) | 2009-11-24 | 2009-11-24 | Chalk eraser capable of dust absorption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201573449U true CN201573449U (en) | 2010-09-08 |
Family
ID=42693331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202583589U Expired - Fee Related CN201573449U (en) | 2009-11-24 | 2009-11-24 | Chalk eraser capable of dust absorption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201573449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641212A (en) * | 2019-11-11 | 2020-01-03 | 江苏斯固信息科技有限公司 | Blackboard eraser capable of absorbing dust |
-
2009
- 2009-11-24 CN CN2009202583589U patent/CN201573449U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110641212A (en) * | 2019-11-11 | 2020-01-03 | 江苏斯固信息科技有限公司 | Blackboard eraser capable of absorbing dust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20111124 |