CN203063438U - Dustproof blackboard eraser - Google Patents
Dustproof blackboard eraser Download PDFInfo
- Publication number
- CN203063438U CN203063438U CN 201220701437 CN201220701437U CN203063438U CN 203063438 U CN203063438 U CN 203063438U CN 201220701437 CN201220701437 CN 201220701437 CN 201220701437 U CN201220701437 U CN 201220701437U CN 203063438 U CN203063438 U CN 203063438U
- Authority
- CN
- China
- Prior art keywords
- box body
- eraser
- dust
- blackboard eraser
- opening
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a dustproof blackboard eraser. The dustproof blackboard eraser is characterized in that the dust proof blackboard eraser comprises a box body, an eraser body, rubber seal coat, elastic strips, a pushing-rod button and adjusting auxiliary rods, wherein one end of the box body is provided with an opening. The adjusting auxiliary rods are arranged on two sides of the box body, the end, provided with the opening, of the box body is provided with a ring of the rubber seal coat which has a sealing function, an open hole is formed in one end, provided with no opening, of the box body, the elastic strips are connected on the periphery of the open hole, the elastic strips are connected with the eraser body, the pushing-rod button is arranged on the eraser body, and the diameter of the pushing-rod button is smaller than the that of the open hole and can extend out of the open hole. The eraser body is arranged in the box body and smaller than the box body, a groove is formed between the eraser body and the box body, and materials which easily absorb dust are arranged in the groove. The dustproof blackboard eraser is simple in structure, convenient to use, and capable of effectively solving the dust problem when a blackboard is cleaned and eliminating health potential hazards.
Description
Technical field
The utility model relates to a kind of blackboard eraser, the especially a kind of dust-proof blackboard eraser that can avoid using traditional blackboard to wipe the dust pollution question that causes.
Background technology
In the daily teaching activity, blackboard eraser one of instrument that is absolutely necessary, but in use can cause serious dust pollution, academics and students healthy has been subjected to very big influence for this reason.In order to address the above problem, those skilled in the art wipes traditional blackboard and has also done a lot of improvement.Be 200920162188.4 to disclose a kind of dustproof blackboard eraser as the patent No., this blackboard eraser volume is bigger, and structure is complicated, and not easy to operate, is not suitable for daily use.
The utility model content
For addressing the above problem, the utility model provides a kind of novel dust-proof blackboard eraser, can effectively solve the dust problem when erasing the board, and simple in structure, volume is little, and it is comparatively convenient to use.
The technical scheme that the utility model provides is: a kind of dust-proof blackboard eraser, it is characterized in that: formed by the secondary bar of box body, rub body, rubber seal, elastic strip, pusher button and the adjusting of an end opening, the box body both sides are provided with regulates secondary bar, one end of box opening is provided with a rubber seal that encloses sealing function, on the box body not an end of opening one perforate is arranged, be connected with elastic strip around the perforate, elastic strip is connected with rub body, rub body is arranged on rub body and is provided with pusher button, and the diameter of pusher button stretches out from perforate than perforate I; Rub body is arranged in the box body, and is littler than box body, forms a groove between rub body and the box body, and the material of easy absorption dust is set in the groove.
The beneficial effects of the utility model are: the utility model is simple in structure, and is easy to use, can effectively solve the dust problem when erasing the board, and eliminates healthy hidden danger.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, pusher button, 2, regulate secondary bar, 3, elastic strip, 4, the rubber seal, 5, rub body, 6, easily absorb the material of dust, 7, groove, 8, box body.
The specific embodiment
As shown in Figure 1, the utility model comprises the secondary bar of box body, rub body, rubber seal, elastic strip, pusher button and the adjusting of an end opening, the box body both sides are provided with regulates secondary bar, one end of box opening is provided with a rubber seal that encloses sealing function, on the box body not an end of opening one perforate is arranged, be connected with elastic strip around the perforate, elastic strip is connected with rub body, rub body is arranged on rub body and is provided with pusher button, and the diameter of pusher button stretches out from perforate than perforate I; Rub body is arranged in the box body, and is littler than box body, forms a groove between rub body and the box body, and the material of easy absorption dust is set in the groove.
In the daily teaching activity, when being stain entirely, uses by blackboard the utility model, and press pusher button and with regulating fixedly rub body of secondary bar, rub body is contacted with blackboard surface.The length and width of rub body all are slightly less than the length and width of box body, leave a groove between rub body and the box body, and there is the rubber seal of protrusion in bottom, do not have dust when erasing the board or dust seldom flies out.After having wiped, to open and regulate secondary bar, rub body turns back to original state under the effect of elastic strip, in telescopic process, external atmosphere pressure is greater than the atmospheric pressure in the box body, and dust can not expose, dust in the box body is outwelled and can be reused after amassing and expiring, and reaches the dustproof effect.
Claims (1)
1. dust-proof blackboard eraser, it is characterized in that: formed by the secondary bar of box body, rub body, rubber seal, elastic strip, pusher button and the adjusting of an end opening, the box body both sides are provided with regulates secondary bar, one end of box opening is provided with a rubber seal that encloses sealing function, on the box body not an end of opening one perforate is arranged, be connected with elastic strip around the perforate, elastic strip is connected with rub body, rub body is arranged on rub body and is provided with pusher button, and the diameter of pusher button stretches out from perforate than perforate I; Rub body is arranged in the box body, and is littler than box body, forms a groove between rub body and the box body, and the material of easy absorption dust is set in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220701437 CN203063438U (en) | 2012-12-18 | 2012-12-18 | Dustproof blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220701437 CN203063438U (en) | 2012-12-18 | 2012-12-18 | Dustproof blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203063438U true CN203063438U (en) | 2013-07-17 |
Family
ID=48762258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220701437 Expired - Fee Related CN203063438U (en) | 2012-12-18 | 2012-12-18 | Dustproof blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203063438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946408A (en) * | 2016-06-26 | 2016-09-21 | 钱煜琴 | Improved type chalk wiper |
-
2012
- 2012-12-18 CN CN 201220701437 patent/CN203063438U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946408A (en) * | 2016-06-26 | 2016-09-21 | 钱煜琴 | Improved type chalk wiper |
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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: 20130717 Termination date: 20131218 |