CN202016329U - Protractor - Google Patents
Protractor Download PDFInfo
- Publication number
- CN202016329U CN202016329U CN2011201050813U CN201120105081U CN202016329U CN 202016329 U CN202016329 U CN 202016329U CN 2011201050813 U CN2011201050813 U CN 2011201050813U CN 201120105081 U CN201120105081 U CN 201120105081U CN 202016329 U CN202016329 U CN 202016329U
- Authority
- CN
- China
- Prior art keywords
- rule
- angle
- protractor
- triangular
- main scale
- 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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Abstract
The utility model discloses a protractor, which belongs to stationery, and is mainly used for solving the problem of no angle measuring function in the protractor. The protractor comprises a main rule, an auxiliary rule and a triangular rule, wherein the main rule is movably connected with the auxiliary rule through a rotating shaft; the tail end of the main rule is provided with the triangular rule; the rotating shaft is arranged on a joint between the main rule and the triangular rule; the triangular rule is provided with angle graduation marks; and the tail end of the auxiliary rule is rotationally arranged between different angle graduation marks. The protractor has the characteristic of realizing measuring of angles by matching two movably-connected dividing rules with the angle graduation marks on the triangular rule according to the principle of the same opposite vertex angle of the protractor.
Description
Technical field
The utility model relates to a kind of stationery, specifically a kind of rule.
Background technology
Rule is people's one of commonly used stationery in study and work.But existing rule must be used the function that can realize drawing angle graphics with protractor.
The utility model content
The purpose of this utility model is to provide a kind of angle square, mainly solve the problem of the function that angle square do not take measurement of an angle, the principle that this angle square is identical according to the vertical angles angle uses the rule of two flexible connections to cooperate angle index on the set square to identify to realize the characteristics that take measurement of an angle.
The technical scheme in the invention for solving the technical problem is: angle square, its structure comprises main scale, secondary chi and set square, described main scale flexibly connects by rotating shaft and secondary chi, the main scale end is provided with set square, described rotating shaft is arranged on the junction of main scale and set square, described set square is provided with the angle index sign, and terminal rotation of described secondary chi is arranged between different angle index signs.
The beneficial effects of the utility model are: the principle that this angle square is identical according to the vertical angles angle, use the main scale of two flexible connections and secondary chi to cooperate angle index on the set square to identify to realize the function one that takes measurement of an angle can either finish the characteristics that take measurement of an angle and can draw angle graphics to ruler, a chi is used more.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1 main scale, 2 secondary chis, 3 rotating shafts, 4 set squares, 5 angle indexs sign.
The specific embodiment
As shown in Figure 1.Angle square, its structure comprises main scale 1, secondary chi 2 and set square 4, described main scale 1 flexibly connects by rotating shaft 3 and secondary chi 2, main scale 1 end is provided with set square 4, described rotating shaft 3 is arranged on the junction of main scale 1 and set square 4, described set square 4 is provided with angle index sign 5, and described secondary chi 2 terminal rotations are arranged on 5 of different angle index signs, is convenient for measuring and draws different angles.
The principle that this angle square is identical according to the vertical angles angle 3 is placed to arbitrarily angledly main scale 1 and secondary chi 2 around the shaft, and the reading in the angle index sign 5 of secondary chi 2 ends on set square 4 is the angle between main scale 1 and the secondary chi 2.Realize the function that takes measurement of an angle with this.A ruler can either be finished the characteristics that take measurement of an angle and can draw angle graphics, and the many usefulness of a chi are very easy to use.
Claims (1)
1. angle square, it is characterized in that, comprise main scale, secondary chi and set square, described main scale flexibly connects by rotating shaft and secondary chi, the main scale end is provided with set square, described rotating shaft is arranged on the junction of main scale and set square, and described set square is provided with the angle index sign, and terminal rotation of described secondary chi is arranged between different angle index signs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201050813U CN202016329U (en) | 2011-04-12 | 2011-04-12 | Protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201050813U CN202016329U (en) | 2011-04-12 | 2011-04-12 | Protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202016329U true CN202016329U (en) | 2011-10-26 |
Family
ID=44810005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201050813U Expired - Fee Related CN202016329U (en) | 2011-04-12 | 2011-04-12 | Protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202016329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660728A (en) * | 2012-08-29 | 2014-03-26 | 台北科技大学 | Ruler capable of drawing included angles rapidly |
-
2011
- 2011-04-12 CN CN2011201050813U patent/CN202016329U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660728A (en) * | 2012-08-29 | 2014-03-26 | 台北科技大学 | Ruler capable of drawing included angles rapidly |
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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: 20111026 Termination date: 20120412 |