CN103223804A - Blackboard eraser - Google Patents
Blackboard eraser Download PDFInfo
- Publication number
- CN103223804A CN103223804A CN 201310162193 CN201310162193A CN103223804A CN 103223804 A CN103223804 A CN 103223804A CN 201310162193 CN201310162193 CN 201310162193 CN 201310162193 A CN201310162193 A CN 201310162193A CN 103223804 A CN103223804 A CN 103223804A
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- blackboard
- dust hood
- dust
- dust shield
- 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
A blackboard eraser is characterized by comprising a blackboard eraser and a dust hood, wherein the blackboard eraser is a frequently-used blackboard eraser, the dust hood is arranged on the side wall of the blackboard eraser, the dust hood is circular or elliptical, and is an arc-shaped rubber with elasticity, which is made of rubber, the diameter of the innermost circle of the dust hood is smaller, the middle of the dust hood is raised so as to store erasing powder, and the dust hood is enabled to be clung to a blackboard by using self elasticity. When in use, the blackboard eraser is taken by a hand, the dust hood is enabled to be clung to the blackboard, the dust hood is enabled to be clung to the blackboard through self elasticity during a wiping process, powder produced during easing is collected into the dust hood and is prevented from diffusion, and after being erased, the blackboard is slightly turned over after stopping for seconds, dust is completely collected into the dust hood and then is poured into a trash can.
Description
Technical field
This blackboard eraser relates to a kind of teaching aid.
Background technology
Traditional blackboard eraser, dust from flying after nuzzling up causes very big influence to the respiratory tract of the Faculty and Students that erase the board, is unfavorable for that the people's is healthy.
Summary of the invention
The shortcoming of dust from flying when erasing the board in order to solve, a kind of blackboard eraser of special invention.
The technical solution adopted for the present invention to solve the technical problems is: a kind of blackboard eraser, it is characterized in that comprising blackboard eraser and dust shield, described blackboard eraser is common blackboard eraser commonly used, be provided with dust shield on described blackboard eraser sidewall, dust shield is circular or oval, is to be with flexible arc rubber skin with what rubber was made, the inside one loop diameter is smaller, intermediate projections storing the dust wiped, and can utilize the elasticity of self to make dust shield be adjacent to blackboard.During use, hand is taken blackboard eraser, allow dust shield be adjacent to blackboard, the process of wiping allows dust shield be adjacent to blackboard by the elastic force of self, and the dust under wiping is in dust shield, and diffusion is not come out, after having wiped blackboard, stop a little after several seconds blackboard eraser to be turned over gently, dust just all in dust shield, is poured on the dustbin the inside then.
Advantage of the present invention is: 1, simple structure, easy to use; 2, dust shield is set and makes that avoided dust to scatter when erasing the board flies upward, protected that teachers and students' is healthy.
Description of drawings
Fig. 1 is Front view 1 of the present invention, blackboard eraser 2, dust shield
Fig. 2 is side view 1 of the present invention, blackboard eraser 2, dust shield
The specific embodiment
Below in conjunction with Figure of description the present invention is done following detailed description.
As shown in Figure 1, a kind of blackboard eraser comprises blackboard eraser and dust shield, and the blackboard eraser periphery is a dust shield, and dust shield is to be with flexible arc rubber skin with what rubber was made.
During use, hand is taken blackboard eraser, and the dust shield that allows the rubber leather become is adjacent to blackboard, erases the board then, in the process that erases the board, allows dust shield utilize the elastic force of self to be adjacent to blackboard as far as possible, prevents that dust from overflowing too much from the slit of dust shield and blackboard; After having wiped, stop a little after several seconds blackboard eraser to be turned over gently, dust just all in dust shield, is poured on dust the dustbin the inside then.
Claims (1)
1. blackboard eraser, form by blackboard eraser and dust shield, it is characterized in that: the blackboard eraser periphery is a dust shield, dust shield is circular or oval, be to be with flexible arc rubber skin with what rubber was made, the inside one loop diameter is smaller, intermediate projections, storing the dust wiped, and can utilize the elasticity of self to make dust shield be adjacent to blackboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310162193 CN103223804A (en) | 2013-05-06 | 2013-05-06 | Blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310162193 CN103223804A (en) | 2013-05-06 | 2013-05-06 | Blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103223804A true CN103223804A (en) | 2013-07-31 |
Family
ID=48834548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310162193 Pending CN103223804A (en) | 2013-05-06 | 2013-05-06 | Blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103223804A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115301668A (en) * | 2022-08-16 | 2022-11-08 | 嘉兴恒元新材料股份有限公司 | Surface sundry cleaning device for weaving device |
-
2013
- 2013-05-06 CN CN 201310162193 patent/CN103223804A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115301668A (en) * | 2022-08-16 | 2022-11-08 | 嘉兴恒元新材料股份有限公司 | Surface sundry cleaning device for weaving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130731 |