CN204687664U - A kind of adjustable pitch blackboard eraser with Telescopic - Google Patents
A kind of adjustable pitch blackboard eraser with Telescopic Download PDFInfo
- Publication number
- CN204687664U CN204687664U CN201520194849.7U CN201520194849U CN204687664U CN 204687664 U CN204687664 U CN 204687664U CN 201520194849 U CN201520194849 U CN 201520194849U CN 204687664 U CN204687664 U CN 204687664U
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- CN
- China
- Prior art keywords
- expansion link
- blackboard eraser
- groove
- bristle
- telescopic
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a kind of adjustable pitch blackboard eraser with Telescopic, and it is made up of base plate, bristle, expansion link, groove, boss; Base plate upper end is provided with bristle, is provided with groove and expansion link in the middle of bottom; Expansion link is scalable, and front end is provided with round boss.The utility model can either use as blackboard eraser, again can by flexible each corner easily clipping blackboard to expansion link; And structure is simple, easy to use, practical.
Description
Technical field
The utility model relates to a kind of blackboard eraser, especially a kind of adjustable pitch blackboard eraser with Telescopic.
Background technology
Blackboard eraser, is used to the teaching aid of wiping chalk writing.Common blackboard eraser is all be made up of base plate and bristle.The material that base plate is conventional has plastics and made of iron, and the material that bristle is conventional has sponge, flannelette etc.Conveniently teaching statement more intuitively, people start the word that will state to write out on blackboard.And wipe writing with cloth at first, conveniently use the apperance be made up of base plate and bristle developed gradually till now afterwards.The birth of blackboard eraser brings a lot of convenience to teaching.
Common blackboard eraser small volume, is held by use, so in usual teaching life, when using blackboard eraser, can only clip the place that hand can get at.For the user of short stature, eminence cannot be wiped and be obtained, and brings inconvenience to use.
Utility model content
In order to overcome the deficiency of above-mentioned existing product, the purpose of this utility model is to provide a kind of adjustable pitch blackboard eraser with Telescopic, it adopts and be provided with bristle on base plate, bottom is provided with groove and expansion link, expansion link is provided with boss, boss is fastened in groove, and rotatably, expansion link is flexible to be placed in groove.
The technical scheme adopted to realize the purpose of this utility model is: a kind of adjustable pitch blackboard eraser with Telescopic, is characterized in that: it is made up of base plate, bristle, expansion link, groove, boss; Described base plate is square, and upper end is provided with bristle, is provided with groove and expansion link in the middle of bottom; Described expansion link is scalable, and front end is provided with round boss.
The beneficial effects of the utility model are: it can either use as blackboard eraser, again can by flexible each corner easily clipping blackboard to expansion link; And structure is simple, easy to use, practical.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Fig. 1 is the utility model structure chart
Fig. 2 is the flexible rear structure chart of the utility model expansion link
Fig. 3 is the utility model Telescopic rod structure figure
Fig. 4 is the utility model expansion link sectional view
1-base plate, 2-bristle, 3-expansion link, 4-groove, 5-boss in figure.
Detailed description of the invention
In the first embodiment shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of adjustable pitch blackboard eraser with Telescopic, is characterized in that: it is made up of base plate, bristle, expansion link, groove, boss; Described base plate is square, and upper end is provided with bristle, is provided with groove and expansion link in the middle of bottom; Described expansion link is scalable, and front end is provided with round boss.
In the second embodiment shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, described base plate is for being connected and fixed structure; Described bristle is used for erasing the board; Described expansion link is flexible to be placed in groove, is convenient to deposit; Described boss is fastened in groove, rotatably.
When using the utility model, the height according to wiping elongates or shortens expansion link, holds expansion link lower end, bristle is fitted tightly wiping on blackboard, bristle indexable in the process of wiping.
Claims (3)
1. the adjustable pitch blackboard eraser with Telescopic, is characterized in that: it is made up of base plate, bristle, expansion link, groove, boss; Described base plate is square, and upper end is provided with bristle, is provided with groove and expansion link in the middle of bottom; Described expansion link is scalable, and front end is provided with round boss.
2. the adjustable pitch blackboard eraser of band Telescopic according to claim 1, is characterized in that: described expansion link is flexible to be placed in groove.
3. the adjustable pitch blackboard eraser of band Telescopic according to claim 1, is characterized in that: described boss is fastened in groove, rotatably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194849.7U CN204687664U (en) | 2015-04-02 | 2015-04-02 | A kind of adjustable pitch blackboard eraser with Telescopic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520194849.7U CN204687664U (en) | 2015-04-02 | 2015-04-02 | A kind of adjustable pitch blackboard eraser with Telescopic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204687664U true CN204687664U (en) | 2015-10-07 |
Family
ID=54227996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520194849.7U Expired - Fee Related CN204687664U (en) | 2015-04-02 | 2015-04-02 | A kind of adjustable pitch blackboard eraser with Telescopic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204687664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267522A (en) * | 2020-04-03 | 2020-06-12 | 宿州微腾企业管理咨询服务有限公司 | Dust absorption formula blackboard eraser for teaching based on roller drive |
-
2015
- 2015-04-02 CN CN201520194849.7U patent/CN204687664U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111267522A (en) * | 2020-04-03 | 2020-06-12 | 宿州微腾企业管理咨询服务有限公司 | Dust absorption formula blackboard eraser for teaching based on roller drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20160402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |