CN202952735U - Telescopic blackboard eraser - Google Patents
Telescopic blackboard eraser Download PDFInfo
- Publication number
- CN202952735U CN202952735U CN 201220540020 CN201220540020U CN202952735U CN 202952735 U CN202952735 U CN 202952735U CN 201220540020 CN201220540020 CN 201220540020 CN 201220540020 U CN201220540020 U CN 201220540020U CN 202952735 U CN202952735 U CN 202952735U
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- groove
- blackboard
- eraser
- 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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Abstract
A telescopic blackboard eraser belongs to teaching aids and comprises a blackboard eraser casing, bristles and a telescopic rod. The blackboard eraser casing is a groove, the bristles are arranged in the groove, and the back of the blackboard casing is connected with the telescopic rod through a universal movable joint. The telescopic blackboard eraser has the advantage that the telescopic rod is connected with the blackboard eraser, the height of the blackboard eraser can be adjusted, and the blackboard eraser is suitable for users with different heights.
Description
Technical field
The utility model belongs to a kind of teaching aid, particularly a kind of eraser with support bar.
Background technology
Before the utility model, blackboard eraser is all fixed dimension, and in the time of need to wiping the letter written with chalk of blackboard eminence, the short person is just helpless, can only bring stool, has stepped down in top wiping board book, and such one is trouble, the 2nd, and dangerous.
The utility model content
The purpose of this utility model is to overcome above-mentioned defect, and a kind of eraser with support bar is provided, and it has an expansion link, can regulate as required the length of blackboard eraser, is applicable to various high short persons and uses.
The purpose of this utility model is achieved through the following technical solutions: a kind of eraser with support bar, it is characterized in that: it comprises blackboard eraser shell, bristle and expansion link, said blackboard eraser shell is a groove, and bristle is installed in groove, and the back of blackboard eraser shell is by universal movable joint connection expansion link.
Advantage of the present utility model with beneficial effect is: expansion link is connected with blackboard eraser, can regulate the height of blackboard eraser, is applicable to various high short persons and uses.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1-blackboard eraser shell, 2-bristle, 3-expansion link, the universal movable joint of 4-.
The specific embodiment
Embodiment: as shown in the figure, a kind of eraser with support bar, it comprises blackboard eraser shell 1, bristle 2 and expansion link 3, and said blackboard eraser shell 1 is a groove, and bristle 2 is installed in groove, and the back of blackboard eraser shell 1 is by universal movable joint 4 connection expansion links 3.
Claims (1)
1. an eraser with support bar, it is characterized in that: it comprises blackboard eraser shell, bristle and expansion link, and said blackboard eraser shell is a groove, and bristle is installed in groove, and the back of blackboard eraser shell is by universal movable joint connection expansion link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540020 CN202952735U (en) | 2012-10-22 | 2012-10-22 | Telescopic blackboard eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220540020 CN202952735U (en) | 2012-10-22 | 2012-10-22 | Telescopic blackboard eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202952735U true CN202952735U (en) | 2013-05-29 |
Family
ID=48458328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220540020 Expired - Fee Related CN202952735U (en) | 2012-10-22 | 2012-10-22 | Telescopic blackboard eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202952735U (en) |
-
2012
- 2012-10-22 CN CN 201220540020 patent/CN202952735U/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: 20130529 Termination date: 20131022 |