CN201922769U - Multifunctional ruler for math teaching - Google Patents
Multifunctional ruler for math teaching Download PDFInfo
- Publication number
- CN201922769U CN201922769U CN201020632299XU CN201020632299U CN201922769U CN 201922769 U CN201922769 U CN 201922769U CN 201020632299X U CN201020632299X U CN 201020632299XU CN 201020632299 U CN201020632299 U CN 201020632299U CN 201922769 U CN201922769 U CN 201922769U
- Authority
- CN
- China
- Prior art keywords
- ruler
- main scale
- moving chi
- chalk
- chi
- 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
- 238000005259 measurement Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model discloses a multifunctional ruler for math teaching, belonging to the teaching field. The ruler comprises a main ruler (1). The ruler is characterized in that the main ruler (1) is rotatably connected with a movable ruler (2) and a protractor (3); the movable ruler (2) is in a retractable structure and provided with a chalk hole (4) for placing a chalk; and the chalk hole (4) is evenly arranged in the movable ruler (2). The multifunctional ruler has a simple structure and is convenient to use and carry; the ruler can be used as a rectilinear ruler, also has the functions of measuring and drawing various angles and drawing circles; and the multifunctional ruler can improve the teaching efficiency.
Description
Technical field
The utility model relates to teaching field, a kind of specifically mathematical education multifunctional ruler.
Background technology
At present, in the mathematical education process, teacher often need carry multiple drawing appliance, convenient various straight lines, angle or the draw circles of drawing, and existing drawing appliance function ratio is more single, can only draw straight line, protractor as ruler and combine with ruler and be used for drawing angle, compasses and be used for draw circles etc.; In addition, these apparatus generally disperse to place, and teacher falls when carrying easily like this, uses, carries inconvenience, has reduced efficiency of teaching.
Summary of the invention
It is a kind of simple in structure, easy to use that the purpose of this utility model is to provide, and can draw multiple figure, and be convenient for carrying, and can improve the mathematical education multifunctional ruler of efficiency of teaching.
In order to reach above purpose, the technical scheme that the utility model adopted is: this mathematical education multifunctional ruler, comprise main scale, it is characterized in that: on main scale, be rotatably connected to moving chi and protractor, be equipped with the graduated scale timberline on main scale and moving chi, be provided with angle and indicate line on protractor, moving chi is a telescopic structure, be provided with the chalk hole that is used to place chalk on moving chi, the chalk hole evenly is arranged on the moving chi.
The utility model is also implemented by following measure: the middle part at main scale is provided with bearing pin, and moving chi and protractor are rotatably installed on the bearing pin respectively.
The beneficial effects of the utility model are: owing to be provided with the graduated scale timberline on main scale and moving chi, can be used for the picture straight line by main scale or moving chi; Because moving chi and protractor and main scale are rotationally connected, by with the main scale location, pass through then to rotate moving chi, and combine like this with protractor, can be used for drawing the angle of various angles, easy to use; By a plurality of chalk holes that are used to place chalk that on moving chi, are provided with, during use main scale is fixed, then by rotating moving chi, chi is rotated with respect to main scale, thereby be used for the picture circle, such chi is used more, prevent that teacher from falling certain instrument in carrying drawing appliance, alleviated teacher's burden.The utility model is simple in structure, and use, easy to carry not only can be made ruler and use, and the size that also can take measurement of an angle is drawn the angle of various angles, and can be used for the picture circle, and the many usefulness of a chi have improved efficiency of teaching.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
Make the utility model with reference to accompanying drawing.This mathematical education multifunctional ruler comprises main scale 1, is rotatably connected to moving chi 2 and protractor 3 on main scale 1, is equipped with graduated scale timberline 5 on main scale 1 and moving chi 2, can be used for the picture straight line by main scale 1 or moving chi 2, and is easy to use; On protractor 3, be provided with angle and indicate line 6, because moving chi 2 and protractor 3 are rotationally connected with main scale 1, promptly be provided with bearing pin 7 at the middle part of main scale 1, moving chi 2 and protractor 3 are rotatably installed in respectively on the bearing pin 7, main scale 1 are fixed on the blackboard to position like this, then by rotating moving chi 2, and be used in combination with protractor 3, not only can be used to the angle of measured angular, and can be used for drawing the angle of various angles, easy to use.
On moving chi 2, be provided with a plurality of chalk holes 4 that are used to place chalk, chalk hole 4 evenly is arranged on the moving chi 2, during use main scale 1 is fixed, chalk is put into suitable chalk hole 4,, chi 2 is rotated with respect to main scale 1 then by rotating moving chi 2, thereby be used for the picture circle, the many usefulness of one chi prevent that teacher from falling certain instrument in carrying drawing appliance, alleviated teacher's burden.
Moving chi 2 is a telescopic structure, combines with chalk hole 4 by this structure, can draw the circle of different-diameter, and is easy to use.
The utility model is simple in structure, and use, easy to carry not only can be made ruler and use, and the size that also can take measurement of an angle is drawn the angle of various angles, and can be used for the picture circle, and the many usefulness of a chi have improved efficiency of teaching.
Claims (2)
1. mathematical education multifunctional ruler, comprise main scale (1), it is characterized in that: on described main scale (1), be rotatably connected to moving chi (2) and protractor (3), moving chi (2) is a telescopic structure, be provided with the chalk hole (4) that is used to place chalk on moving chi (2), chalk hole (4) evenly are arranged on the moving chi (2).
2. mathematical education multifunctional ruler according to claim 1 is characterized in that: the middle part of described main scale (1) is provided with bearing pin (7), and moving chi (2) and protractor (3) are rotatably installed in respectively on the bearing pin (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020632299XU CN201922769U (en) | 2010-11-30 | 2010-11-30 | Multifunctional ruler for math teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020632299XU CN201922769U (en) | 2010-11-30 | 2010-11-30 | Multifunctional ruler for math teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201922769U true CN201922769U (en) | 2011-08-10 |
Family
ID=44426637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020632299XU Expired - Fee Related CN201922769U (en) | 2010-11-30 | 2010-11-30 | Multifunctional ruler for math teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201922769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163062A (en) * | 2014-07-31 | 2014-11-26 | 蒋敬聪 | Drawing tool |
| CN113787856A (en) * | 2021-09-08 | 2021-12-14 | 滨州学院 | Ruler with calculation function for advanced mathematics teaching and use method |
-
2010
- 2010-11-30 CN CN201020632299XU patent/CN201922769U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163062A (en) * | 2014-07-31 | 2014-11-26 | 蒋敬聪 | Drawing tool |
| CN113787856A (en) * | 2021-09-08 | 2021-12-14 | 滨州学院 | Ruler with calculation function for advanced mathematics teaching and use method |
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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: 20110810 Termination date: 20111130 |