CN203391530U - Multi-purpose mathematical teaching ruler - Google Patents
Multi-purpose mathematical teaching ruler Download PDFInfo
- Publication number
- CN203391530U CN203391530U CN201320441470.2U CN201320441470U CN203391530U CN 203391530 U CN203391530 U CN 203391530U CN 201320441470 U CN201320441470 U CN 201320441470U CN 203391530 U CN203391530 U CN 203391530U
- Authority
- CN
- China
- Prior art keywords
- main scale
- ruler
- main
- protractor
- rulers
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model provides a multi-purpose mathematical teaching ruler and belongs to the field of teaching tools. The multi-purpose mathematical teaching ruler is structurally comprises a protractor and two main rulers, the lower ends of the main rulers are hinged to the center of the protractor, the main rulers are arranged in an up-and-down manner, the main ruler on the upper portion and the other main ruler on the lower portion are slidably connected, the main rulers are respectively provided with secondary rulers slidably connected with the same, one end of each secondary ruler is inserted into each main ruler, the other end of the same is provided with a main-ruler scriber, the two main-ruler scribers are connected together through a string, and an elliptical scriber is penetratingly arranged on the string. Compared with the prior art, the multi-purpose mathematical teaching ruler has the advantages of being reasonable in design, simple in structure, good in use effect and the like.
Description
Technical field
The utility model relates to teaching aid field, specifically a kind of mathematical education multipurpose ruler.
Background technology
Mathematics teacher, when giving lessons, usually needs the educational aids such as use amount hornwork, ruler, set square, because this type of instrument is all independently individual, during use, need exchange continually, has increased teacher's workload, and has carried inconvenience.In addition teacher is when drawing angle with protractor, operates more loaded down with trivial detailsly, and accuracy is low.
Summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, and a kind of reasonable in design, mathematical education multipurpose ruler that result of use is good is provided.
The utility model solves the technical scheme that its technical problem adopts:
A kind of mathematical education multipurpose ruler, comprise protractor and main scale, the lower end of main scale and the center of protractor are hinged, main scale is provided with two and also arranges up and down, between the main scale on top and the main scale of bottom, is slidably connected, and is respectively arranged with the secondary chi being slidably connected with it in main scale, insert in main scale Fu Chi one end, the other end is provided with main scale scriber, between two main scale scribers, by a cord, is connected together, and is installed with oval scriber on cord.
A multipurpose ruler, two main scale scriber is arranged on the both sides at protractor center.
A multipurpose ruler, it is respectively arranged with corresponding graduation mark on main scale and secondary chi.
Compared with prior art, the beneficial effect producing is the utility model:
The utlity model has the features such as reasonable in design, simple in structure, easy to use, function admirable, practicality, protractor, ruler, compasses, ellipse drawing device are combined into one, facilitate teacher to use, facilitate again teacher to carry, not only can draw rapidly and accurately the figure that will explain, and alleviated teacher's work difficulty, improved quality of instruction.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure: 1, main scale scriber, 2, secondary chi, 3, cord, 4, oval scriber, 5, protractor, 6, main scale, 7, graduation mark.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail below.
As shown in drawings, mathematical education multipurpose ruler of the present utility model, its structure comprises protractor 5 and main scale 6, the center of the lower end of main scale 6 and protractor 5 is hinged, main scale 5 is provided with two and also arranges up and down, between the main scale 6 on top and the main scale 6 of bottom, be slidably connected, in main scale 6, be respectively arranged with the secondary chi 2 being slidably connected with it, insert in main scale 6 secondary chi 2 one end, the other end is provided with main scale scriber 1, between two main scale scribers 1, by a cord 3, be connected together, on cord 3, be installed with oval scriber 4; Two main scale scribers 1 are arranged on the both sides at protractor 5 centers.On main scale 6 and secondary chi 2, be respectively arranged with corresponding graduation mark 7.
By main scale 6 and secondary chi 2, can draw straight line, in the time of need to drawing angle, can match and carry out by main scale 6, secondary chi 2 and protractor 5.While drawing circle, by main scale 6, secondary chi 2 and main scale scriber 1, be used in conjunction with; While drawing ellipse, by two main scale scribers 1 and ellipse drawing device 4, be used in combination.
Its processing and fabricating of mathematical education multipurpose ruler of the present utility model is simple and convenient, processing and fabricating shown in by specification accompanying drawing.
Except the technical characterictic described in description, be those skilled in the art's known technology.
Claims (3)
1. a mathematical education multipurpose ruler, comprise protractor and main scale, the lower end of main scale and the center of protractor are hinged, it is characterized in that main scale is provided with two and also arranges up and down, between the main scale on top and the main scale of bottom, be slidably connected, in main scale, be respectively arranged with the secondary chi being slidably connected with it, insert in main scale Fu Chi one end, the other end is provided with main scale scriber, between two main scale scribers, by a cord, is connected together, and is installed with oval scriber on cord.
2. a kind of mathematical education multipurpose ruler according to claim 1, is characterized in that two main scale scribers are arranged on the both sides at protractor center.
3. a kind of mathematical education multipurpose ruler according to claim 1 and 2, is characterized in that being respectively arranged with corresponding graduation mark on main scale and secondary chi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441470.2U CN203391530U (en) | 2013-07-24 | 2013-07-24 | Multi-purpose mathematical teaching ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441470.2U CN203391530U (en) | 2013-07-24 | 2013-07-24 | Multi-purpose mathematical teaching ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203391530U true CN203391530U (en) | 2014-01-15 |
Family
ID=49903083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320441470.2U Expired - Fee Related CN203391530U (en) | 2013-07-24 | 2013-07-24 | Multi-purpose mathematical teaching ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203391530U (en) |
-
2013
- 2013-07-24 CN CN201320441470.2U patent/CN203391530U/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: 20140115 Termination date: 20140724 |
|
| EXPY | Termination of patent right or utility model |