CN203995313U - A kind of Novel mathematics teaching chi device - Google Patents
A kind of Novel mathematics teaching chi device Download PDFInfo
- Publication number
- CN203995313U CN203995313U CN201420457196.2U CN201420457196U CN203995313U CN 203995313 U CN203995313 U CN 203995313U CN 201420457196 U CN201420457196 U CN 201420457196U CN 203995313 U CN203995313 U CN 203995313U
- Authority
- CN
- China
- Prior art keywords
- protractor
- main scale
- mathematics teaching
- chalk
- fixed axis
- 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
Abstract
The utility model discloses a kind of Novel mathematics teaching chi device, relate to teaching equipment technical field, comprise main scale, the centre position of described main scale is provided with protractor, under described protractor, be provided with fixed axis, on described fixed axis, be wound with connection cord, the end of described connection cord and chalk sleeve Joint; The practicality of the utility model reasonable in design, novelty is skillfully constructed, easy to use, realize the function that protractor, ruler and set square three chis are unified, the line-plotting device of setting can directly use, very convenient practicality, can save the time of mapping, improve mapping efficiency and the accuracy rate of teachers ' teaching, very convenient to carry, alleviate teacher's work load, improved teacher's operating efficiency.
Description
Technical field
The utility model relates to teaching aid technical field, especially a kind of Novel mathematics teaching chi device.
Background technology
At present, mathematics teacher is in the time giving lessons, conventionally need to carry and use the educational aids such as protractor, ruler and set square, and the protractor of prior art, ruler and set square are all independently individual separately, and in the process of mathematical education, need to exchange continually and use these utensils, troublesome poeration, increase mathematics teacher's work load, and carry inconvenience, be easy to cause omission, the effect thereby impact is given lessons.
Utility model content
The purpose of this utility model is to provide a kind of Novel mathematics teaching chi device in order to overcome above-mentioned technical disadvantages.
The technical scheme that the utility model technical solution problem adopts is: a kind of Novel mathematics teaching chi device, comprise main scale, the centre position of described main scale is provided with protractor, under described protractor, be provided with fixed axis, on described fixed axis, be wound with connection cord, the end of described connection cord and chalk sleeve Joint.
Described chalk sleeve comprises positive stop end, and described positive stop end is connected with slide plate by spring, and described slide plate is connected with the pushing block of chalk sleeve outer end, and the end of described slide plate and chalk joins.
The outer end of described chalk sleeve is provided with blob of viscose.
Described main scale is set to triangle.
The beneficial effect that the utility model has is:
The practicality of the utility model reasonable in design, novelty is skillfully constructed, easy to use, realize the function of protractor, ruler and set square three chi unifications, can save the time of mapping, improve mapping efficiency and the accuracy rate of teachers ' teaching, very convenient to carry, alleviate teacher's work load, improved teacher's operating efficiency.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is the structural representation of the utility model chalk sleeve.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 and accompanying drawing 2, the utility model is described below.
As shown in Fig. 1 and Fig. 1, the utility model comprises main scale 2, and the centre position of described main scale 2 is provided with protractor 1, is provided with fixed axis 6 under described protractor 1, on described fixed axis 6, be wound with connection cord 5, the end of described connection cord 5 and chalk sleeve 3 Joints; Described chalk sleeve 3 comprises positive stop end 11, and described positive stop end 11 is connected with slide plate 10 by spring, and described slide plate 10 is connected with the pushing block 7 of chalk sleeve 3 outer ends, and described slide plate 10 joins with the end of chalk 4; The outer end of described chalk sleeve 3 is provided with blob of viscose 9; Described main scale 2 is set to triangle.
When actual use, according to the type that will draw, the drawing instrument that selection is used.In the time drawing angle, directly by corresponding protractor 1 corresponding line, connection cord 5 is adjusted to applicable length, and hand-held blob of viscose 9 positions, are used chalk 4 directly to draw, if chalk 4 use are short, can use pushing block 7 to drive slide plate 10 to advance toward chalk 4 end directions, can be conducive to the clamping of segment chalk 4, improve the utilization rate of chalk 4, reduce finger simultaneously and contact with the direct of chalk 4, alleviate the injury of chalk 4 to skin.
Claims (4)
1. a Novel mathematics teaching chi device, it is characterized in that: comprise main scale, the centre position of described main scale is provided with protractor, is provided with fixed axis under described protractor, on described fixed axis, be wound with connection cord, the end of described connection cord and chalk sleeve Joint.
2. a kind of Novel mathematics teaching chi device according to claim 1, it is characterized in that: described chalk sleeve comprises positive stop end, described positive stop end is connected with slide plate by spring, and described slide plate is connected with the pushing block of chalk sleeve outer end, and the end of described slide plate and chalk joins.
3. a kind of Novel mathematics teaching chi device according to claim 1, is characterized in that: the outer end of described chalk sleeve is provided with blob of viscose.
4. a kind of Novel mathematics teaching chi device according to claim 1, is characterized in that: described main scale is set to triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420457196.2U CN203995313U (en) | 2014-08-11 | 2014-08-11 | A kind of Novel mathematics teaching chi device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420457196.2U CN203995313U (en) | 2014-08-11 | 2014-08-11 | A kind of Novel mathematics teaching chi device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203995313U true CN203995313U (en) | 2014-12-10 |
Family
ID=52035368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420457196.2U Expired - Fee Related CN203995313U (en) | 2014-08-11 | 2014-08-11 | A kind of Novel mathematics teaching chi device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203995313U (en) |
-
2014
- 2014-08-11 CN CN201420457196.2U patent/CN203995313U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150811 |
|
| EXPY | Termination of patent right or utility model |