CN203126275U - Folding rule for teaching - Google Patents
Folding rule for teaching Download PDFInfo
- Publication number
- CN203126275U CN203126275U CN 201320102693 CN201320102693U CN203126275U CN 203126275 U CN203126275 U CN 203126275U CN 201320102693 CN201320102693 CN 201320102693 CN 201320102693 U CN201320102693 U CN 201320102693U CN 203126275 U CN203126275 U CN 203126275U
- Authority
- CN
- China
- Prior art keywords
- folding rule
- teaching
- ruler
- bearing pin
- rules
- 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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- Length-Measuring Instruments Using Mechanical Means (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a teaching tool, in particular to a folding rule for teaching. The folding rule comprises a folding rule body which is composed of identical straight rules which are mutually connected end-to-end, and the adjacent rules are movably connected through pins. Compared with prior tools, the folding rule has the advantages of being convenient to carry and simple to operate; and the usage is not so different from the usage of prior tools, a required polygonal structure can be formed by rotation of the straight rules, and a required angle and the magnitude of an existing angle can be determined through scales on rotation connecting pieces.
Description
Technical field
The utility model relates to a kind of teaching aid, is specifically related to a kind of multi-functional teaching folding rule.
Background technology
In the conventional teaching, straight line drawn in the ruler term, and set square is used for drawing triangle, and protractor is used for taking measurement of an angle and drawing the angle with certain angle.The effect difference that above-mentioned apparatus plays in actual applications, therefore drawing branch line, angle must adopt corresponding instrument respectively during triangle, therefore student and teacher must use above-mentioned instrument respectively in operation at ordinary times, bring very big inconvenience for student and teacher.
Summary of the invention
The purpose of this utility model is to provide a kind of teaching folding rule, by changing the shape of this folding rule, and replaces ruler, set square by the scale groove on the rotary connector.
In order to realize above purpose, the utility model adopts following technical scheme: a kind of teaching folding rule, comprise the folding rule body, and described folding rule body is made of the interconnective identical ruler of head and the tail, flexibly connects by bearing pin between the described adjacent ruler.
The center of described bearing pin is provided with through hole, in the described through hole fastening bolt is installed.
The number of described ruler is four or six or eight or ten or 12.
Described ruler is provided with scale.
The two ends of described ruler are arcuate structure.
Advantage of the present utility model is: compare with instrument in the past, have easy to carry, simple operation easily, usage and not too big difference of instrument in the past, required polygonized structure is formed in rotation by ruler, determine required angle by the scale on the rotary connector, also the scale of available rotary connector is determined the size of existing angle.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of teaching folding rule comprises the folding rule body, and described folding rule body is made of the interconnective identical ruler 1 of head and the tail, flexibly connects by bearing pin 3 between the described adjacent ruler 1.
The center of described bearing pin 3 is provided with through hole 2, in the described through hole 2 fastening bolt is installed.
The number of described ruler 1 is four or six or eight or ten or 12.
Described ruler 1 is provided with scale.
The two ends of described ruler 1 are arcuate structure.
This teaching can be adjusted by the rotation of bearing pin 3 with folding rule, can form a square, hexagon, octagon, decagon, dodecagon, the polygon that uses in the teaching just at quadrangle between the dodecagon, surpassing the dodecagonal polygon seldom uses, therefore, can be easy to just form the polygon that needs by adjusting bearing pin 3, in order to prevent after forming polygon, tool variations, bearing pin 3 is designed to hollow-core construction, and heart position arranges a through hole therein, by bolt carry out bearing pin 3 and ruler 1 between combine closely, after can guaranteeing to form the polygon that needs, folding rule is indeformable simple to operate.
In addition, folding rule structure of the present utility model can also be out of shape as required and be become rhombus, waits other figure, and operation easily if End-of-Course can fold, is deposited also very convenient.
Claims (5)
1. a teaching folding rule comprises the folding rule body, it is characterized in that: described folding rule body is made of the interconnective identical rulers of head and the tail (1), flexibly connects by bearing pin (3) between the described adjacent ruler (1).
2. a kind of teaching folding rule according to claim 1, it is characterized in that: the center of described bearing pin (3) is provided with through hole (2), and described through hole is equipped with fastening bolt in (2).
3. a kind of teaching folding rule according to claim 1, it is characterized in that: the number of described ruler (1) is four or six or eight or ten or 12.
4. a kind of teaching folding rule according to claim 1, it is characterized in that: described ruler (1) is provided with scale.
5. a kind of teaching folding rule according to claim 1, it is characterized in that: the two ends of described ruler (1) are arcuate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102693 CN203126275U (en) | 2013-03-07 | 2013-03-07 | Folding rule for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102693 CN203126275U (en) | 2013-03-07 | 2013-03-07 | Folding rule for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203126275U true CN203126275U (en) | 2013-08-14 |
Family
ID=48934291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320102693 Expired - Fee Related CN203126275U (en) | 2013-03-07 | 2013-03-07 | Folding rule for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203126275U (en) |
-
2013
- 2013-03-07 CN CN 201320102693 patent/CN203126275U/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: 20130814 Termination date: 20140307 |