CN204680266U - The teaching demonstration device at angle - Google Patents
The teaching demonstration device at angle Download PDFInfo
- Publication number
- CN204680266U CN204680266U CN201520206953.3U CN201520206953U CN204680266U CN 204680266 U CN204680266 U CN 204680266U CN 201520206953 U CN201520206953 U CN 201520206953U CN 204680266 U CN204680266 U CN 204680266U
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- CN
- China
- Prior art keywords
- angle
- casing
- limit
- axle
- initial point
- 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
The utility model is the teaching demonstration device at angle, comprise casing, casing is provided with plane right-angle coordinate, and a limit at angle, above X-axis, is deckle, another limit is dynamic limit, the initial point of coordinate system is that the lower left corner of the summit casing at angle is provided with knob, and be provided with driving wheel and engaged wheel in casing, driving wheel and knob are on an axle, engaged wheel and initial point on an axle, the dynamic limit of this axle pilot angle.Driving-belt is had to connect between driving wheel and engaged wheel.Rotating knob, moves around initial point in dynamic limit, the formation at the angle that can be used for imparting knowledge to students, the composition at angle, the classification etc. at angle.Advantage structure of the present utility model is simple, and easy to use, visual in image, student is acceptant.
Description
Technical field:
The utility model relates to a kind of teaching apparatus for mathematics field, relates in particular to the teaching demonstration device at angle.
Background technology:
Often occur the content of courses of Relative Angle in school mathematics teaching material, owing to not having corresponding teaching aid, can only be undertaken by the mode of drawing on blackboard and mouth is said when teacher imparts knowledge to students, such student is difficult to accept, and result is got half the result with twice the effort, and affects the raising of quality of instruction.
Utility model content:
For providing a kind of visual in image teaching efficiency obvious teaching aid, the technical scheme that the utility model is taked is:
The utility model comprises casing, and casing is provided with plane right-angle coordinate, and a limit at angle, above X-axis, is deckle, and another limit is dynamic limit, and the initial point of coordinate system is the summit (4) at angle, and the lower left corner of casing is provided with knob (5).Be provided with driving wheel (6) and engaged wheel (7) in casing, driving wheel and knob on an axle, engaged wheel and initial point on an axle, the dynamic limit (3) of this axle pilot angle.Driving-belt (8) is had to connect between driving wheel and engaged wheel.Rotate knob (5), dynamic limit (3) around initial point motion, the formation at the angle that can be used for imparting knowledge to students, the composition at angle, the classification etc. at angle.Advantage structure of the present utility model is simple, and easy to use, visual in image, student is acceptant.
Accompanying drawing illustrates:
Fig. 1 is the utility model structural representation;
Fig. 2 is transmission structures schematic diagram;
1X axle (limit at angle) in figure, 2Y axle, 3 dynamic limits, the summit of 4 jiaos, 5 knobs, 6 driving wheels, 7 engaged wheels, 8 driving-belts.
Embodiment:
Below in conjunction with embodiment and accompanying drawing, the utility model is further elaborated:
The utility model comprises casing, casing is provided with plane right-angle coordinate, a limit at angle is above X-axis, for deckle, another limit is dynamic limit, and the initial point of coordinate system is that the lower left corner of summit (4) casing at angle is provided with knob (5), driving wheel (6) and engaged wheel (7) is provided with in casing, driving wheel and knob on an axle, engaged wheel and initial point on an axle, the dynamic limit (3) of this axle pilot angle.Driving-belt (8) is had to connect between driving wheel and engaged wheel.Advantage structure of the present utility model is simple, and easy to use, visual in image, student is acceptant.
During use, rotate knob (5), dynamic limit (3) around initial point motion, the formation at the angle that can be used for imparting knowledge to students, the composition at angle, the classification etc. at angle.
Claims (1)
1. the teaching demonstration device at angle, comprise a casing, it is characterized in that casing is provided with plane right-angle coordinate, a limit at angle, above X-axis, is deckle, another limit is dynamic limit, the initial point of coordinate system is that the lower left corner of summit (4) casing at angle is provided with knob (5), and be provided with driving wheel (6) and engaged wheel (7) in casing, driving wheel and knob are on an axle, engaged wheel and initial point on an axle, the dynamic limit of this axle pilot angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206953.3U CN204680266U (en) | 2015-04-02 | 2015-04-02 | The teaching demonstration device at angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520206953.3U CN204680266U (en) | 2015-04-02 | 2015-04-02 | The teaching demonstration device at angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204680266U true CN204680266U (en) | 2015-09-30 |
Family
ID=54179941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520206953.3U Expired - Fee Related CN204680266U (en) | 2015-04-02 | 2015-04-02 | The teaching demonstration device at angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204680266U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104794962A (en) * | 2015-04-06 | 2015-07-22 | 邬苏婷 | Apparatus for teaching demonstration of the angle |
-
2015
- 2015-04-02 CN CN201520206953.3U patent/CN204680266U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104794962A (en) * | 2015-04-06 | 2015-07-22 | 邬苏婷 | Apparatus for teaching demonstration of the angle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160402 |