CN102267321A - Telescopic blackboard eraser - Google Patents
Telescopic blackboard eraser Download PDFInfo
- Publication number
- CN102267321A CN102267321A CN2010105211570A CN201010521157A CN102267321A CN 102267321 A CN102267321 A CN 102267321A CN 2010105211570 A CN2010105211570 A CN 2010105211570A CN 201010521157 A CN201010521157 A CN 201010521157A CN 102267321 A CN102267321 A CN 102267321A
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- China
- Prior art keywords
- blackboard eraser
- scalable
- handle
- present
- telescopic component
- 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.)
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Abstract
The invention discloses a telescopic blackboard eraser which comprises a telescopic assembly and a blackboard eraser, wherein the blackboard eraser is arranged on the telescopic assembly. The telescopic blackboard eraser disclosed by the invention has the characteristics of simple structure, free telescopic property and convenience for use.
Description
Technical field
The present invention relates to a kind of blackboard eraser, relate in particular to a kind of scalable blackboard eraser.
Background technology
Blackboard eraser is a kind of office accommodation, almost is seen everywhere in each school, and existing most of blackboard erasers all are independently individualities now, be independent of outside the blackboard, during use, teacher or student must pick up blackboard eraser, the letter written with chalk on the blackboard could be wiped.But in practice, but a situation arises often is, pupil or personage of short and small stature because when erasing the board, can there be the place of being beyond one's grasp in the restriction of height usually, have caused inconvenience.
Summary of the invention
The object of the present invention is to provide a kind of scalable blackboard eraser, it is simple in structure, can stretch and can contract, and is easy to use.
For solving the foregoing invention purpose, technical scheme provided by the invention is:
A kind of scalable blackboard eraser comprises telescopic component and blackboard eraser; Described blackboard eraser is installed on the described telescopic component.
Above-mentioned scalable blackboard eraser, wherein, described blackboard eraser is for being fixedly installed in removably on the described telescopic component.
Above-mentioned scalable blackboard eraser, wherein, described telescopic component is an extendable handle.
Above-mentioned scalable blackboard eraser, wherein, described extendable handle is the self-action extendable handle; Described self-action extendable handle is by handle, and the coil tension spring that is connected with described handle constitutes.
Above-mentioned scalable blackboard eraser, wherein, described blackboard eraser is a dust absorption blackboard eraser.
Adopt scalable blackboard eraser of the present invention to have characteristics simple in structure, capable of expansion and contraction, easy to use.
Description of drawings
Fig. 1 is the contraction state schematic diagram of scalable blackboard eraser of the present invention;
Fig. 2 is the extended configuration schematic diagram of scalable blackboard eraser of the present invention.
The specific embodiment
The present invention will be further described in detail below in conjunction with specification drawings and specific embodiments.
As shown in Figure 1 and Figure 2, scalable blackboard eraser of the present invention comprises scalable assembly 1 and blackboard eraser 2, and blackboard eraser 2 is fixedly installed in scalable assembly 1 upper end removably; Scalable assembly 1 is made of handle 11 and the contraction spring 12 that is connected with handle 11, is provided with hoist button 111 and decline button 112 on handle 11.
The operation principle of scalable blackboard eraser of the present invention is as follows: during use, press the button 111 that hoists, the original contraction spring 12 that shrinks will slowly hoist, thereby makes the blackboard eraser 2 that is mounted on retraction assemblies 1 upper end rise to certain altitude, can clip the place of being beyond one's grasp on the blackboard.Simultaneously, the blackboard eraser 2 in the present embodiment is a dust absorption blackboard eraser, thereby health environment-friendly more is of value to the healthy of Faculty and Students.
Scalable wiping blackboard structure of the present invention is simple, and scalable blackboard eraser of the present invention has characteristics simple in structure, capable of expansion and contraction, easy to use.
Should be pointed out that foregoing is enumerating of preferred forms of the present invention, wherein the part of not describing in detail to the greatest extent is construed as with the general fashion in present technique field and is implemented.Simultaneously, for one of ordinary skill in the art, in not departing from spiritual category of the present invention,, all will fall within the protection domain of claim of the present invention equivalent transformation and modification that the present invention did.
Claims (5)
1. a scalable blackboard eraser is characterized in that, it comprises telescopic component and blackboard eraser; Described blackboard eraser is installed on the described telescopic component.
2. scalable blackboard eraser as claimed in claim 1 is characterized in that, described blackboard eraser is for being fixedly installed in removably on the described telescopic component.
3. scalable blackboard eraser as claimed in claim 1 is characterized in that, described telescopic component is an extendable handle.
4. scalable blackboard eraser as claimed in claim 1 is characterized in that, described blackboard eraser is a dust absorption blackboard eraser.
5. scalable blackboard eraser as claimed in claim 3 is characterized in that, described extendable handle is the self-action extendable handle; Described self-action extendable handle is by handle, and the coil tension spring that is connected with described handle constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105211570A CN102267321A (en) | 2010-10-26 | 2010-10-26 | Telescopic blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105211570A CN102267321A (en) | 2010-10-26 | 2010-10-26 | Telescopic blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102267321A true CN102267321A (en) | 2011-12-07 |
Family
ID=45049865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105211570A Pending CN102267321A (en) | 2010-10-26 | 2010-10-26 | Telescopic blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102267321A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722963A (en) * | 2013-12-20 | 2014-04-16 | 浙江理工大学 | Full-automatic dustless blackboard eraser |
| CN103950330A (en) * | 2014-04-04 | 2014-07-30 | 深圳市福田区青少年科技教育协会 | Telescopic blackboard eraser |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201102420Y (en) * | 2007-08-25 | 2008-08-20 | 宋伟娟 | Blackboard eraser |
| CN101612856A (en) * | 2008-06-26 | 2009-12-30 | 上海工商信息学校 | A kind of blackboard eraser |
| CN201456824U (en) * | 2009-06-19 | 2010-05-12 | 周超 | Electric dust-suction blackboard eraser |
| CN201566342U (en) * | 2009-11-10 | 2010-09-01 | 上海市闵行区浦江第三中学 | Scalable blackboard eraser |
| CN201592610U (en) * | 2009-11-27 | 2010-09-29 | 董慧 | Blackboard eraser with telescopic barre |
-
2010
- 2010-10-26 CN CN2010105211570A patent/CN102267321A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201102420Y (en) * | 2007-08-25 | 2008-08-20 | 宋伟娟 | Blackboard eraser |
| CN101612856A (en) * | 2008-06-26 | 2009-12-30 | 上海工商信息学校 | A kind of blackboard eraser |
| CN201456824U (en) * | 2009-06-19 | 2010-05-12 | 周超 | Electric dust-suction blackboard eraser |
| CN201566342U (en) * | 2009-11-10 | 2010-09-01 | 上海市闵行区浦江第三中学 | Scalable blackboard eraser |
| CN201592610U (en) * | 2009-11-27 | 2010-09-29 | 董慧 | Blackboard eraser with telescopic barre |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722963A (en) * | 2013-12-20 | 2014-04-16 | 浙江理工大学 | Full-automatic dustless blackboard eraser |
| CN103722963B (en) * | 2013-12-20 | 2015-06-17 | 浙江理工大学 | Full-automatic dustless blackboard eraser |
| CN103950330A (en) * | 2014-04-04 | 2014-07-30 | 深圳市福田区青少年科技教育协会 | Telescopic blackboard eraser |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111207 |