CN105856923A - Dustproof blackboard eraser cover - Google Patents
Dustproof blackboard eraser cover Download PDFInfo
- Publication number
- CN105856923A CN105856923A CN201510587190.6A CN201510587190A CN105856923A CN 105856923 A CN105856923 A CN 105856923A CN 201510587190 A CN201510587190 A CN 201510587190A CN 105856923 A CN105856923 A CN 105856923A
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- CN
- China
- Prior art keywords
- blackboard eraser
- dust
- cover
- blackboard
- dustproof
- 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.)
- Pending
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- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a dustproof blackboard eraser cover, relates to the field of dust prevention for traditional blackboard erasers and provides an auxiliary dustproof device which is simple in structure, low in cost, capable of being used in combination with the traditional blackboard erasers, and easy to popularize. The dustproof blackboard eraser cover is used in combination with a blackboard eraser through a square hole in the center of a plastic cover body. The protruding periphery of the cover body is 1-2 mm shorter than a brush, compressed due to stress, of the blackboard eraser, and a cloth edge with the width being 1 cm is arranged on the edge of the cover body.
Description
Technical field
The present invention relates to traditional blackboard wiping and realize dust reduction capability.
Background technology
Traditional blackboard is nuzzled up and is commonly formed the chalk dust flown upward after blackboard, and entering human respiratory tract affects healthy especially to dust
Faculty and Students' harm of allergy is bigger.Existing various and fruitful about the technology realizing blackboard eraser dust reduction capability, have perhaps
The most outstanding technical scheme, such as the China Patent No. declared by Liu Wenjia of State Intellectual Property Office's bulletin in 2013:
2012205011579, title is that the technical scheme that the utility model patent of " dust-proof blackboard eraser " is used has good dust-proof effect
Really, it is of great value innovation and creation, but it is disadvantageous in that: structure is complicated, and blackboard eraser production cost is significantly increased,
The use of water is required to cause being difficult to promote in water resources shortage area by it；The China Patent No. declared for another Zhai Zhonglei, Yang Wujin:
2010201781316, title is the utility model patent of " dust-proof blackboard eraser ", and it has simple in construction, with low cost and operation
Simple advantage, but still defective: rib is short and small and exists only in both direction, causes dust-proof effect the best.
Summary of the invention
The present invention is directed to the problems referred to above, be applied in combination device dust-proof blackboard eraser cover to traditional blackboard wiping offer one is dust-proof.
The present invention uses following design for achieving the above object: dust-proof blackboard eraser cover is that blackboard eraser dust reduction capability adminicle is by covering
Body and selvedge composition.Lid shape is like pot cover, and there are square cavity in lid flat circle central authorities, flat circle diameter no more than 30cm,
Square cavity length and width are corresponding with blackboard eraser handheld board length and width.Around lid, prominent length is shorter than after blackboard eraser hairbrush portion forced compression
1-2mm, there is 1cm width selvedge at edge.Dust-proof blackboard eraser cover cap body material is plastics.
The present invention has the active effect that good dustproof effect, and simple in construction is with low cost, wipes with traditional blackboard as combination unit
With the use of easy to spread.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
In figure, 1-lid, 2-selvedge, 3-central authorities cavity.
Fig. 2 is the present invention and blackboard eraser assembled state schematic diagram.
In figure, 1-lid, 2-selvedge, 3-hairbrush portion, 4-handheld board.
Fig. 3 is that the present invention combines schematic diagram with blackboard eraser.
Detailed description of the invention
The present invention is described in further details by explanation and instantiation below in conjunction with the accompanying drawings.
Dust-proof blackboard eraser cover as shown in Figure 3 combines schematic diagram with blackboard eraser.Traditional blackboard is wiped handheld board part from the bottom of the present invention
Portion is passed by cavity, and lid is fixed on handheld board bottom position, and i.e. completing combination can employ such as Fig. 2.Central square
Cavity processes according to blackboard eraser length and width parameter, utilizes the trace deformation of lid plastic material can block steady handheld board.Used
In journey, lid and black print face ask that formation closed space can accommodate a large amount of flying dust, and selvedge prevents flying dust from escaping.During blackboard wiping edge,
In case of cover edge conflicts with blackboard marginal portion, only lid location-appropriate in handheld board need to be raised.If needed can be at any time
This combination unit is separated.
Claims (2)
1. dust-proof blackboard eraser cover, is characterized in that: have central authorities cavity (3) and the lid (1) of selvedge (2).
The most according to claim 1, dust-proof blackboard eraser cover, is characterized in that: central authorities cavity (3) are square；The wide 1cm of selvedge (2)；Lid (1)
The most prominent length is than short 1-2mm after blackboard eraser hairbrush portion stress, and material is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587190.6A CN105856923A (en) | 2015-09-16 | 2015-09-16 | Dustproof blackboard eraser cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587190.6A CN105856923A (en) | 2015-09-16 | 2015-09-16 | Dustproof blackboard eraser cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105856923A true CN105856923A (en) | 2016-08-17 |
Family
ID=56624091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510587190.6A Pending CN105856923A (en) | 2015-09-16 | 2015-09-16 | Dustproof blackboard eraser cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105856923A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272376Y (en) * | 1996-09-13 | 1998-01-14 | 肖晖 | Dust-proof eraser for blackboard |
| CN201587251U (en) * | 2009-11-16 | 2010-09-22 | 张博 | Dustproof blackboard eraser |
| CN201800401U (en) * | 2010-10-08 | 2011-04-20 | 杨芙莹 | Dustproof blackboard eraser |
| CN202098197U (en) * | 2011-06-08 | 2012-01-04 | 马茹祥 | Dust-proof blackboard eraser |
| CN202242637U (en) * | 2011-08-15 | 2012-05-30 | 王元薇 | Novel blackboard eraser |
| CN202826892U (en) * | 2012-10-12 | 2013-03-27 | 李晴 | Dustproof blackboard eraser |
| CN202986564U (en) * | 2012-12-06 | 2013-06-12 | 赵翠萍 | Dustproof blackboard brush |
| CN202986557U (en) * | 2012-11-06 | 2013-06-12 | 上海市闵行中学 | Dustproof blackboard eraser |
-
2015
- 2015-09-16 CN CN201510587190.6A patent/CN105856923A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2272376Y (en) * | 1996-09-13 | 1998-01-14 | 肖晖 | Dust-proof eraser for blackboard |
| CN201587251U (en) * | 2009-11-16 | 2010-09-22 | 张博 | Dustproof blackboard eraser |
| CN201800401U (en) * | 2010-10-08 | 2011-04-20 | 杨芙莹 | Dustproof blackboard eraser |
| CN202098197U (en) * | 2011-06-08 | 2012-01-04 | 马茹祥 | Dust-proof blackboard eraser |
| CN202242637U (en) * | 2011-08-15 | 2012-05-30 | 王元薇 | Novel blackboard eraser |
| CN202826892U (en) * | 2012-10-12 | 2013-03-27 | 李晴 | Dustproof blackboard eraser |
| CN202986557U (en) * | 2012-11-06 | 2013-06-12 | 上海市闵行中学 | Dustproof blackboard eraser |
| CN202986564U (en) * | 2012-12-06 | 2013-06-12 | 赵翠萍 | Dustproof blackboard brush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |