CN203110620U - Modified chalk sleeve for teaching - Google Patents
Modified chalk sleeve for teaching Download PDFInfo
- Publication number
- CN203110620U CN203110620U CN 201320148326 CN201320148326U CN203110620U CN 203110620 U CN203110620 U CN 203110620U CN 201320148326 CN201320148326 CN 201320148326 CN 201320148326 U CN201320148326 U CN 201320148326U CN 203110620 U CN203110620 U CN 203110620U
- Authority
- CN
- China
- Prior art keywords
- chalk
- hollow cylinder
- teaching
- modified
- sleeve
- 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
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model relates to a modified chalk sleeve for teaching. The modified chalk sleeve for teaching comprises a hollow cylinder, a first elastic clamping piece and a second elastic clamping piece are arranged at one end of the hollow cylinder, and a chalk thruster is arranged at the other end of the hollow cylinder in a threaded connection mode. Due to the fact that the hollow cylinder is arranged, chalk can be contained in the hollow cylinder to use, and the hand cannot be polluted when the chalk is used. Due to the arrangement of the chalk thruster, the length of the chalk in the hollow cylinder can be adjusted. The arrangement of a blackboard eraser enables a user to carry out correction freely in a writing process. The modified chalk sleeve for teaching prevents the chalk from being broken easily, and saves cost.
Description
Technical field
The utility model relates to a kind of teaching aid, relates to a kind of chalk sleeve specifically.
Background technology
Chalk is the important tool of teaching usefulness, but is made the influence of material, exists the shortcoming of dirty hand, frangibility, influences teacher's health, the waste public expense.
The utility model content
Problem to be solved in the utility model is at above problem, and is hand-dirtying-free when a kind of use is provided, and the improved teaching chalk sleeve of frangibility not.
For addressing the above problem, the technical scheme that the utility model adopts is: improved teaching chalk sleeve, comprise, one hollow cylinder, one end of described hollow cylinder is provided with first elastic clip and second elastic clip, the other end of the described hollow cylinder chalk propeller that has been threaded, the angle of rake free end of described chalk is provided with blackboard eraser.
The utility model is taked above technical scheme, have the following advantages: improved teaching chalk sleeve, comprise, one hollow cylinder, one end of described hollow cylinder is provided with first elastic clip and second elastic clip, the other end of the described hollow cylinder chalk propeller that has been threaded, the angle of rake free end of described chalk is provided with blackboard eraser; Because the setting of hollow cylinder, chalk is contained in the hollow cylinder, can dirty hand during use, the angle of rake setting of chalk, can regulate the length of chalk in hollow cylinder, arranging of blackboard eraser can random changing in the process of writing, and this novel chalk that prevents fractures easily, has saved cost.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure: the 1-hollow cylinder; 11-first elastic clip; 12-second elastic clip; 2-chalk propeller; The 3-blackboard eraser.
The specific embodiment
Embodiment: improved teaching chalk sleeve, comprise, one hollow cylinder 1, one end of described hollow cylinder 1 is provided with first elastic clip 11 and second elastic clip 12, the other end of the described hollow cylinder 1 chalk propeller 2 that has been threaded, the free end of described chalk propeller 2 is provided with blackboard eraser 3; Because the setting of hollow cylinder 1, chalk is contained in the hollow cylinder 1, can dirty hand during use, the setting of chalk propeller 2, can regulate the length of chalk in hollow cylinder 1, arranging of blackboard eraser 3 can random changing in the process of writing, and this novel chalk that prevents fractures easily, has saved cost.
Claims (1)
1. improved teaching chalk sleeve, it is characterized in that: comprise, a hollow cylinder, an end of described hollow cylinder is provided with first elastic clip and second elastic clip, the other end of the described hollow cylinder chalk propeller that has been threaded, the angle of rake free end of described chalk is provided with blackboard eraser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320148326 CN203110620U (en) | 2013-03-23 | 2013-03-23 | Modified chalk sleeve for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320148326 CN203110620U (en) | 2013-03-23 | 2013-03-23 | Modified chalk sleeve for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203110620U true CN203110620U (en) | 2013-08-07 |
Family
ID=48890996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320148326 Expired - Fee Related CN203110620U (en) | 2013-03-23 | 2013-03-23 | Modified chalk sleeve for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203110620U (en) |
-
2013
- 2013-03-23 CN CN 201320148326 patent/CN203110620U/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: 20130807 Termination date: 20140323 |