CN202439430U - Tool ruler for primary mathematics - Google Patents
Tool ruler for primary mathematics Download PDFInfo
- Publication number
- CN202439430U CN202439430U CN2012200771922U CN201220077192U CN202439430U CN 202439430 U CN202439430 U CN 202439430U CN 2012200771922 U CN2012200771922 U CN 2012200771922U CN 201220077192 U CN201220077192 U CN 201220077192U CN 202439430 U CN202439430 U CN 202439430U
- Authority
- CN
- China
- Prior art keywords
- ruler
- slide block
- tool
- main scale
- main
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a tool ruler for primary mathematics, which comprises a main ruler and a secondary ruler vertical to the main ruler, wherein the main ruler and the secondary ruler are both straight rulers and provided with scale marks; a slide slot is arranged on the main ruler along the length direction; one end of the secondary ruler is bent into a slide block which is vertical to a ruler body; and the slide block is arranged in the slide slot. The tool ruler for primary mathematics is reasonable in structure design, convenient and quick in use, high in precision, time-saving and labor-saving; the tool ruler can be used for resisting a student in drawing a right angle; and the learning efficiency of the student is increased.
Description
Technical field
The utility model relates to mathematics and uses chi, is specifically related to a kind of primary school mathematics tool ruler.
Background technology
Ruler is the indispensable instrument of student's learning mathematics, the available geometric figure that it is drawn straight line or has the right angle, and existing ruler is when drawing the right angle; Must draw two straight lines respectively and let two straight line vertical summations; The right angle that can draw, but say from birth that for the primary school at the right angle that just studies painting it is accurate inadequately that the perpendicularity of its two right-angle sides is always drawn; And waste time and energy, influence Students'learning efficient.
Summary of the invention
The purpose of the utility model provides a kind of primary school mathematics tool ruler, its reasonable in design, convenient to use, and accuracy is high, and is time saving and energy saving, improved Students'learning efficient.
The purpose of the utility model realizes in the following manner: this primary school mathematics tool ruler; Comprise main scale and the secondary chi perpendicular with it; Said main scale and secondary chi are ruler, are equipped with graduation mark on it, are provided with chute on the main scale along its length; One end of secondary chi is bent to form the slide block vertical with blade, and slide block is in the chute.
The utility model reasonable in design, convenient to use, accuracy is high, and is time saving and energy saving, can help the student to draw the right angle, improved Students'learning efficient.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
With reference to Fig. 1, this primary school mathematics tool ruler comprises main scale 1 and the secondary chi 2 perpendicular with it; Said main scale 1 is ruler with secondary chi 2, is equipped with graduation mark on it, is provided with chute 3 on the main scale 1 along its length; One end of secondary chi 2 is bent to form the slide block vertical with blade 4, and slide block 4 is in the chute 3.During use, the slide block 4 of secondary chi 2 through its end slided into appointment place along the chute 3 on the main scale 1, respectively along main scale 1 and secondary chi 2 two right-angle sides that draw, promptly accomplish the drafting at right angle then.
Claims (1)
1. primary school mathematics tool ruler; It is characterized in that: comprise main scale (1) and the secondary chi (2) perpendicular with it; Said main scale (1) and secondary chi (2) are ruler, are equipped with graduation mark on it, are provided with chute (3) on the main scale (1) along its length; One end of secondary chi (2) is bent to form the slide block vertical with blade (4), and slide block (4) is in the chute (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200771922U CN202439430U (en) | 2012-03-05 | 2012-03-05 | Tool ruler for primary mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200771922U CN202439430U (en) | 2012-03-05 | 2012-03-05 | Tool ruler for primary mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202439430U true CN202439430U (en) | 2012-09-19 |
Family
ID=46820884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200771922U Expired - Fee Related CN202439430U (en) | 2012-03-05 | 2012-03-05 | Tool ruler for primary mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202439430U (en) |
-
2012
- 2012-03-05 CN CN2012200771922U patent/CN202439430U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20130305 |