CN202174870U - Dustproof blackboard eraser - Google Patents
Dustproof blackboard eraser Download PDFInfo
- Publication number
- CN202174870U CN202174870U CN2011202645775U CN201120264577U CN202174870U CN 202174870 U CN202174870 U CN 202174870U CN 2011202645775 U CN2011202645775 U CN 2011202645775U CN 201120264577 U CN201120264577 U CN 201120264577U CN 202174870 U CN202174870 U CN 202174870U
- Authority
- CN
- China
- Prior art keywords
- housing
- blackboard eraser
- bristle
- dust
- bristles
- 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 dustproof blackboard eraser, belonging to a teaching tool, and mainly solving problem of dust flying. The structure of the dustproof blackboard eraser is formed by bristles and a housing, the housing is a cavity, the opening part is provided with a concave-convex slot, the bottom of the bristles is provided with a bristle seat capable of absorbing water to be permeated to the bristles, the bristle seat is inserted into the slot of the housing, the blackboard eraser can reduce and prevent dust generated in use, and effectively prevent dust flying from harming human body and polluting environment.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically is a kind of dust-proof blackboard eraser.
Background technology
Class hour on to the student, teacher can erase the board every now and then, following class hour; The student on duty classmate also will erase the board, chalk powder will drop on one after another teacher and classmates on hand and on one's body, the dust that flies upward also can be inhaled in the lung; Because the specific physical performance of chalk; This can cause very big injury to health, and like pneumoconiosis and various acute and chronic breathing problem that dust causes, dust is to the injury of eyes, ear, skin; Can also bring out other disease, to the influence of air quality and to influence of myopia or the like.If a kind of blackboard eraser that prevents dust from flying can be arranged, will be useful especially to teacher and classmates' physical and mental health.
The utility model content
The purpose of the utility model is to provide a kind of dust-proof blackboard eraser, and the dust that this blackboard eraser causes in the time of can reducing and avoid the use of effectively prevents harm that dust from flying causes human body and to the pollution of environment.
The technical scheme that its technical problem of the utility model solution is taked is: a kind of dust-proof blackboard eraser; Its structure is made up of bristle and housing; Described housing is a cavity; Be provided with concavo-convex slot at opening part, described bristle bottom is provided with the hair brush base that can absorb water and infiltrate into bristle, and described hair brush base is inserted in the slot of housing.
The beneficial effect of the utility model is: before the use, with injecting suitable quantity of water in the housing, correctly install bristle, be about to hair brush base and insert in the groove on the housing; At this moment, hair brush base contacts and draws water to bristle with the interior water of housing, makes bristle keep moistening; When erasing the board, owing to bristle wets, so can prevent dust from flying; Efficiently solve the able-bodied technical problem of harm Faculty and Students when erasing the board, the utlity model has characteristics simple to operate, easy to use, environmental protection and energy saving.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure: 1 bristle, 2 hair brush bases, 3 slots, 4 housings.
The specific embodiment
As shown in Figure 1.A kind of dust-proof blackboard eraser; Its structure is made up of bristle 1 and housing 4, and described housing 4 is a cavity, is provided with concavo-convex slot 3 at opening part; Described bristle 1 bottom is provided with the hair brush base 2 that can absorb water and infiltrate into bristle, and described hair brush base 2 is inserted in the slot 3 of housing 4.Described bristle 1 also can adopt sponge.
Before the use,, correctly install bristle 1, be about in the slot 3 on the hair brush base 2 insertion housings 4 injecting suitable quantity of water in the housing 4; At this moment, hair brush base 2 contacts and draws on water to the bristle 1 with housing 4 interior water, makes bristle 1 keep moistening, when erasing the board; Because bristle 1 wets,, efficiently solve the able-bodied technical problem of harm Faculty and Students when erasing the board so can prevent dust from flying; The utlity model has characteristics simple to operate, with low cost, easy to use, environmental protection and energy saving.
Claims (1)
1. a dust-proof blackboard eraser is characterized in that, is made up of bristle and housing; Described housing is a cavity; Be provided with concavo-convex slot at opening part, described bristle bottom is provided with the hair brush base that can absorb water and infiltrate into bristle, and described hair brush base is inserted in the slot of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202645775U CN202174870U (en) | 2011-07-26 | 2011-07-26 | Dustproof blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202645775U CN202174870U (en) | 2011-07-26 | 2011-07-26 | Dustproof blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202174870U true CN202174870U (en) | 2012-03-28 |
Family
ID=45864772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202645775U Expired - Fee Related CN202174870U (en) | 2011-07-26 | 2011-07-26 | Dustproof blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202174870U (en) |
-
2011
- 2011-07-26 CN CN2011202645775U patent/CN202174870U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20120726 |