CN2858313Y - Chalk ash slot of blackboard - Google Patents
Chalk ash slot of blackboard Download PDFInfo
- Publication number
- CN2858313Y CN2858313Y CN 200520048208 CN200520048208U CN2858313Y CN 2858313 Y CN2858313 Y CN 2858313Y CN 200520048208 CN200520048208 CN 200520048208 CN 200520048208 U CN200520048208 U CN 200520048208U CN 2858313 Y CN2858313 Y CN 2858313Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- chalk dust
- chalk ash
- chalk
- ash slot
- 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
Links
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The present utility model discloses a chalk ash slot of blackboard, which is of the same length with the blackboard and it is disposed on the lower edge of the blackboard, charactered in that: the inner groove of the said chalk ash slot is hinged on the lower edge of the blackboard, and a joined bar vertical to the blackboard, which is cooperated with the agraffe on the lower wall of the chalk ash slot to support the chalk ash slot, is disposed on the back of the chalk ash slot. The chalk ash slot adopts a turndown structure, which will be easy to clean up the chalk ash when removing the chalk ash.
Description
Technical field
The utility model relates to a kind of teaching aid, relates in particular to the chalk dust ledge on a kind of blackboard.
Background technology
In order to collect the chalk dust that falls when teacher uses chalk to write on blackboard, do not cause chalk dust to trickle down ground, contaminated environment.Generally be fixed with on the lower edge of existing blackboard and the neat long chalk dust ledge of blackboard.This chalk dust is owing to be the lower edge that be fixed on blackboard vertical with blackboard, the inconvenience very of getting up of the chalk dust of therefore clearing up groove, and especially the chalk dust of edge is not always removed in the groove.
Summary of the invention
Goal of the invention of the present utility model provides the chalk dust ledge on a kind of blackboard of being convenient to remove chalk dust in the groove.
In order to realize the foregoing invention purpose, chalk dust ledge on a kind of blackboard of the utility model, isometric with blackboard, be provided with the lower edge of blackboard, it is characterized in that: the interior trough rim hinge of described chalk dust ledge is in the lower edge of blackboard, the back of described chalk dust ledge be provided with chalk dust ledge below body of wall on snap fit support chalk dust ledge vertical with blackboard take bar.
Adopt such technical scheme, when collecting chalk dust, make chalk dust ledge and blackboard keep vertical, when the chalk in clearing up chalk dust ledge returns, chalk dust ledge is put down, parallel with blackboard, like this with regard to easy cleaning, and can clear up very clean.
Therefore, the utility model has the advantages that: adopt chalk dust ledge to adopt foldable version, when removing chalk dust, be convenient to cleaning person and the chalk dust in the groove removed clean.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Chalk dust ledge 1 on a kind of blackboard as shown in Figure 1, isometric with blackboard 2, be located at the lower edge 201 of blackboard 2, interior trough rim 101 hinges of this chalk dust ledge 1 are in the lower edge 201 of blackboard, be provided with at the back 102 of chalk dust ledge 1 and take bar 103, this is taken bar 103 hasp 301 on can chalk dust ledges 1 below body of wall 3 and cooperates that to support chalk dust ledges 1 vertical with blackboard 2.
Claims (1)
1, the chalk dust ledge on a kind of blackboard, isometric with blackboard, be provided with the lower edge of blackboard, it is characterized in that: the interior trough rim hinge of described chalk dust ledge is in the lower edge of blackboard, the back of described chalk dust ledge be provided with chalk dust ledge below body of wall on snap fit support chalk dust ledge vertical with blackboard take bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520048208 CN2858313Y (en) | 2005-12-29 | 2005-12-29 | Chalk ash slot of blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520048208 CN2858313Y (en) | 2005-12-29 | 2005-12-29 | Chalk ash slot of blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2858313Y true CN2858313Y (en) | 2007-01-17 |
Family
ID=37611169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520048208 Expired - Fee Related CN2858313Y (en) | 2005-12-29 | 2005-12-29 | Chalk ash slot of blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2858313Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692825A (en) * | 2013-11-07 | 2014-04-02 | 安徽省智汇电气技术有限公司 | Multifunctional white board |
| CN111216475A (en) * | 2020-01-09 | 2020-06-02 | 南京中视联教育科学技术研究中心 | Blackboard capable of being cleaned for teaching |
-
2005
- 2005-12-29 CN CN 200520048208 patent/CN2858313Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692825A (en) * | 2013-11-07 | 2014-04-02 | 安徽省智汇电气技术有限公司 | Multifunctional white board |
| CN103692825B (en) * | 2013-11-07 | 2016-05-04 | 安徽省智汇电气技术有限公司 | Multifunctional white board |
| CN111216475A (en) * | 2020-01-09 | 2020-06-02 | 南京中视联教育科学技术研究中心 | Blackboard capable of being cleaned for teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |