CN86202357U - Versatile ruler - Google Patents
Versatile ruler Download PDFInfo
- Publication number
- CN86202357U CN86202357U CN 86202357 CN86202357U CN86202357U CN 86202357 U CN86202357 U CN 86202357U CN 86202357 CN86202357 CN 86202357 CN 86202357 U CN86202357 U CN 86202357U CN 86202357 U CN86202357 U CN 86202357U
- Authority
- CN
- China
- Prior art keywords
- ruler
- main scale
- utility
- model
- mathematics
- 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.)
- Ceased
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Abstract
The utility model relates to a mathematical multipurpose ruler which is composed of a main scale and an auxiliary scale. The utility model can be used for drawing circles, parallel lines, etc. as a drawing tool in mathematics teaching and can be used for explaining the definitions of an angle, a circle, etc. as a mathematical teaching aid. The utility model has the advantages of simple structure, time saving, convenience, complete functions, etc.
Description
The utility model is the mathematics multipurpose ruler that not only can make mathematics teaching drawing instrument but also can be used for mathematics teaching aid about a kind of.
Known mathematical education drawing instrument is single ruler, set square, protractor, when the definition of explanation angle, circle etc., needs with multiple corresponding mathematics teaching aid.
Task of the present utility model is in order to overcome above-mentioned shortcoming, to be designed to a kind of mathematics multipurpose ruler of being made up of main scale and auxilliary chi.Can make the mathematics teaching aid again easily as the drawing instrument of drawing parallel lines, circle figures.
The mathematics multipurpose ruler that provides according to the utility model, it is made up of main scale and auxilliary chi, main scale has scale, there is a dead slot centre, two movably steady arms are housed in the dead slot, can be fixed on a certain position in the dead slot to steady arm by set screw, pilot hole is arranged on the steady arm, be used to settle anchor clamps or auxilliary chi.Auxilliary chi is made up of a semicircle protractor and a ruler, and protractor passes through screw rod, decide the angle screw is connected with ruler.Two locating pins at the throughput hornwork back side make it to be connected with steady arm on the main scale.
The utility model has the advantages that the many usefulness of a chi, can be used as mathematics drawing instruments such as ruler, compasses, bisecting compasses, protractor, T-square, easy to use.When as mathematics teaching aid, can explain the definition of angle, circle simultaneously, the cor-responding identified theorems of parallel lines etc., visual and understandable.
Fig. 1 is the main scale (1) of mathematics multipurpose ruler, auxilliary chi (9), anchor clamps (7) front elevation.
Fig. 2 is the compasses front elevation of main scale (1) and anchor clamps (7) combination.
Fig. 3 is the T-square front elevation of main scale (1) and auxilliary chi (9) combination.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described:
Fig. 2 is embodiment 1: use as compasses, its method is to go up dress ruling pen (chalk or pencil) at anchor clamps (7) of main scale (1), and another anchor clamps are loaded onto needle point, are point of fixity with the needle point, regulating between two steady arms (3) distance is radius, can justify.
Fig. 3 is embodiment 2: make T-square and use and to draw parallel lines, decide angle screw (11), loosening set screw (5) slides steady arm (3) in dead slot (2), and chi (9) the one group of parallel lines that draws are assisted on available ruling pen edge.
Claims (4)
1, a kind of mathematics multipurpose ruler of the teaching that is used to draw, it is characterized in that it is made up of main scale (1) and auxilliary chi (9), is a dead slot in the middle of the main scale, and two steady arms (3) are housed in the dead slot, auxilliary chi (9) one ends are semicircular protractor (10), and a ruler links to each other with protractor.
2, by the described multipurpose ruler of claim 1, it is characterized in that two steady arms (3) can move left and right.
3, by claim 1 or 2 described multipurpose rulers, it is characterized in that a pilot hole (4) and a set screw (5) are arranged on the steady arm (3).
4,, it is characterized in that having two locating pins (8) to be connected on the auxilliary chi (9) with main scale (1) by the described multipurpose ruler of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86202357 CN86202357U (en) | 1986-04-14 | 1986-04-14 | Versatile ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86202357 CN86202357U (en) | 1986-04-14 | 1986-04-14 | Versatile ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86202357U true CN86202357U (en) | 1987-05-20 |
Family
ID=4805907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86202357 Ceased CN86202357U (en) | 1986-04-14 | 1986-04-14 | Versatile ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86202357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489364A (en) * | 2013-08-30 | 2014-01-01 | 熊飞 | Geomorphology map measuring and reading scale and in-situ map scale combination |
-
1986
- 1986-04-14 CN CN 86202357 patent/CN86202357U/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489364A (en) * | 2013-08-30 | 2014-01-01 | 熊飞 | Geomorphology map measuring and reading scale and in-situ map scale combination |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |