CN203093539U - Novel dust-free blackboard eraser for teaching - Google Patents
Novel dust-free blackboard eraser for teaching Download PDFInfo
- Publication number
- CN203093539U CN203093539U CN 201320157978 CN201320157978U CN203093539U CN 203093539 U CN203093539 U CN 203093539U CN 201320157978 CN201320157978 CN 201320157978 CN 201320157978 U CN201320157978 U CN 201320157978U CN 203093539 U CN203093539 U CN 203093539U
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- CN
- China
- Prior art keywords
- blackboard eraser
- cavity
- liquid
- blackboard
- chamber
- 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 relates to a novel dust-free blackboard eraser for teaching, which comprises a blackboard eraser body. The blackboard eraser body is provided with blackboard eraser bristles and is internally provided with a first chamber. The first chamber is internally provided with a sponge member. One surface of the blackboard eraser body, which is connected with the blackboard eraser bristles, is provided with a plurality of first through holes. The blackboard eraser body is provided with a handle with a second chamber which is filled by liquid. Second through holes are provided between the first chamber and the second chamber. The handle is provided with a liquid inlet/outlet. The liquid in the second chamber enters the sponge member through the second holes. The liquid in the sponge member adheres on the blackboard eraser bristles through the first through holes, thereby slightly moistening the blackboard eraser bristles, and preventing flying of chalk dust in use. The novel dust-free blackboard eraser for teaching further has the following advantages: high convenience in use, simple structure and capability of dedusting.
Description
Technical field
The utility model relates to a kind of teaching aid, relates to a kind of blackboard eraser specifically.
Background technology
The blackboard eraser that teaching is at present used, the function of the dirt that do not disappear because dust can't be eliminated, causes chalk dust to fly upward aloft during use, is easy to the inspiration by teachers and students, influences the healthy of teachers and students.
The utility model content
Problem to be solved in the utility model is at above problem, and the teaching new no-dust blackboard eraser of a kind of energy dedusting is provided.
For addressing the above problem, the technical scheme that the utility model adopted is: teaching new no-dust blackboard eraser, comprise the blackboard eraser body, described blackboard eraser body is provided with the blackboard snag, be provided with first cavity in the described blackboard eraser body, in described first cavity cavernous body is housed, the one side that described blackboard eraser body is connected with described blackboard snag is provided with a plurality of first through holes, described blackboard eraser body is provided with handle, be provided with second cavity in the described handle, in described second cavity liquid is housed, is provided with second through hole between described first cavity and described second cavity, described handle is provided with liquid entrance.
The utility model is taked above technical scheme, have the following advantages: teaching new no-dust blackboard eraser, comprise the blackboard eraser body, described blackboard eraser body is provided with the blackboard snag, be provided with first cavity in the described blackboard eraser body, in described first cavity cavernous body is housed, the one side that described blackboard eraser body is connected with described blackboard snag is provided with a plurality of first through holes, described blackboard eraser body is provided with handle, be provided with second cavity in the described handle, in described second cavity liquid is housed, is provided with second through hole between described first cavity and described second cavity, described handle is provided with liquid entrance; Liquid in second cavity enters into cavernous body by second through hole, and the liquid in the cavernous body attached in the blackboard snag, makes the blackboard snag moistening slightly by first through hole, chalk dust can not flown upward everywhere, easy to use, simple in structure, and can dedusting.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure: 1-blackboard eraser body; 11-first through hole; 12-second through hole; The snag of 2-blackboard; 3-first cavity; The 4-cavernous body; The 5-handle; The 51-liquid entrance; 6-second cavity; 7-liquid.
The specific embodiment
Embodiment: teaching new no-dust blackboard eraser, comprise blackboard eraser body 1, described blackboard eraser body 1 is provided with blackboard snag 2, be provided with first cavity 3 in the described blackboard eraser body 1, in described first cavity 3 cavernous body 4 is housed, the one side that described blackboard eraser body 1 is connected with described blackboard snag 2 is provided with a plurality of first through holes 11, described blackboard eraser body 1 is provided with handle 5, be provided with second cavity 6 in the described handle 5, in described second cavity 6 liquid 7 is housed, be provided with second through hole 12 between described first cavity 3 and described second cavity 6, described handle 5 is provided with liquid entrance 51; Liquid in second cavity 6 enters into cavernous body 4 by second through hole 12, and the liquid in the cavernous body 4 attached in the blackboard snag 2, makes blackboard snag 2 moistening slightly by first through hole 11, chalk dust can not flown upward everywhere, easy to use, simple in structure, and can dedusting.
Claims (1)
1. impart knowledge to students and use the new no-dust blackboard eraser, comprise the blackboard eraser body, described blackboard eraser body is provided with the blackboard snag, it is characterized in that: be provided with first cavity in the described blackboard eraser body, in described first cavity cavernous body is housed, the one side that described blackboard eraser body is connected with described blackboard snag is provided with a plurality of first through holes, described blackboard eraser body is provided with handle, be provided with second cavity in the described handle, in described second cavity liquid is housed, be provided with second through hole between described first cavity and described second cavity, described handle is provided with liquid entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157978 CN203093539U (en) | 2013-03-23 | 2013-03-23 | Novel dust-free blackboard eraser for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157978 CN203093539U (en) | 2013-03-23 | 2013-03-23 | Novel dust-free blackboard eraser for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203093539U true CN203093539U (en) | 2013-07-31 |
Family
ID=48844970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320157978 Expired - Fee Related CN203093539U (en) | 2013-03-23 | 2013-03-23 | Novel dust-free blackboard eraser for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203093539U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216516A (en) * | 2015-11-06 | 2016-01-06 | 山东科技大学 | A kind of dust suction blackboard eraser for environmental protection |
-
2013
- 2013-03-23 CN CN 201320157978 patent/CN203093539U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216516A (en) * | 2015-11-06 | 2016-01-06 | 山东科技大学 | A kind of dust suction blackboard eraser for environmental protection |
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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: 20130731 Termination date: 20140323 |