CN202923229U - Multi-functional protractor - Google Patents
Multi-functional protractor Download PDFInfo
- Publication number
- CN202923229U CN202923229U CN 201220664558 CN201220664558U CN202923229U CN 202923229 U CN202923229 U CN 202923229U CN 201220664558 CN201220664558 CN 201220664558 CN 201220664558 U CN201220664558 U CN 201220664558U CN 202923229 U CN202923229 U CN 202923229U
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- CN
- China
- Prior art keywords
- protractor
- utility
- model
- rulers
- ruler
- 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 multi-functional protractor which belongs to the technical field of teaching aids, and more specifically, the utility model relates to an improvement to a protractor structure. The utility model provides the multi-functional protractor which has a simple structure, is convenient to use and can clearly express the relationship of angles. The multi-functional protractor comprises a 360-degree circular protractor, and is characterized in that a rotating shaft is arranged in the circle center of the circular protractor; two rulers which are 200mm long are arranged on the rotating shaft; the width of the rulers is 12mm; the rotating shaft is arranged in the centers of the two rulers; and centerlines are arranged on the surfaces of the two rulers, and the scales of the rulers are arranged on the centerlines.
Description
Technical field
The utility model belongs to the teaching aid technical field, and in particular, the utility model relates to a kind of improvement of angle gage structure.
Background technology
Now, for the student who begins to learn the angle, the concept of crying is also indefinite, student's indigestion, and this has also brought very large difficulty for teacher's teaching.The student conceptual understanding such as " hands in " retroactively to " diagonal angle " and gets up also very difficultly, and academics and students's burden is all very large.
Summary of the invention
The utility model is exactly for the problems referred to above, provide a kind of simple in structure, easy to use, can clear performance the multi-function protractor of relation at angle.
For reaching above-mentioned purpose of the present utility model, the utility model adopts following technical scheme, and the utility model comprises the circular protractor of 360 °, it is characterized in that: the circle centre position of circular protractor is provided with rotating shaft, be provided with the ruler of two long 200mm in rotating shaft, ruler is wide is 12mm; Described rotating shaft is positioned at the center of two rulers; Described two ruler surfaces are provided with center line, and the graduation mark of ruler is arranged on center line.
As a kind of preferred version of the present utility model, described circular protractor and ruler are made by transparent plastic.
The beneficial effects of the utility model: 1, simple in structure: the circle centre position of circular protractor of the present utility model is provided with rotating shaft, is provided with the ruler of two long 200mm in rotating shaft, and ruler is wide is 12mm; Described rotating shaft is positioned at the center of two rulers; Described two ruler surfaces are provided with center line, and the graduation mark of ruler is arranged on center line.Its member is few, and is simple in structure.Be easy to production and processing, cost of manufacture is cheap.
2, function is many: the utility model protractor can take measurement of an angle, and ruler can be measured length, and passes through the cooperation of two rulers, can well express the relation at " diagonal angle ", " supplementary angle ", and the utility model function is many thus.
3, being convenient to teacher teaching and student understands: the utility model shows the concept at virtual angle by circular protractor and two rulers form with essence, make the student understand easily the relation at angle, decrease teacher's teaching, and the difficulty understood of student.
4, easy to use: two ruler surfaces of the present utility model are provided with center line, and graduation mark is arranged on center line, is convenient to the measurement to angle, and is easy to use.
In addition, circular protractor of the present utility model and two rulers are made by transparent plastic, therefore, are convenient to observe the relation of two ruler center lines, and the pattern below the utility model, use convenient.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In accompanying drawing, 1 is that ruler, 2 is that graduation mark, 3 is that center line, 4 is that circular protractor, 5 is rotating shaft.
The specific embodiment
The utility model comprises the circular protractor 4 of 360 °, it is characterized in that: the circle centre position of circular protractor 4 is provided with rotating shaft 5, is provided with the ruler 1 of two long 200mm in rotating shaft 5, and ruler 1 is wide is 12mm; Described rotating shaft 5 is positioned at the center of two rulers 1; Described two ruler 1 surfaces are provided with center line 3, and the graduation mark 2 of ruler 1 is arranged on center line 3.
As a kind of preferred version of the present utility model, described circular protractor 4 and ruler 1 are made by transparent plastic.
Above content is the further description of the utility model being done in conjunction with concrete preferred embodiment; can not assert that concrete enforcement of the present utility model is confined to these explanations; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; can also make some simple deduction or replace, all should be considered as belonging to the definite protection domain of claims that the utility model is submitted to.
Claims (2)
1. multi-function protractor, comprise the circular protractor (4) of 360 °, and it is characterized in that: the circle centre position of circular protractor (4) is provided with rotating shaft (5), is provided with the ruler (1) of two long 200mm in rotating shaft (5), and ruler (1) is wide is 12mm; Described rotating shaft (5) is positioned at the center of two rulers (1); Described two rulers (1) surface is provided with center line (3), and the graduation mark (2) of ruler (1) is arranged on center line (3).
2. multi-function protractor according to claim 1, it is characterized in that: described circular protractor (4) and ruler (1) are made by transparent plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664558 CN202923229U (en) | 2012-12-06 | 2012-12-06 | Multi-functional protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664558 CN202923229U (en) | 2012-12-06 | 2012-12-06 | Multi-functional protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202923229U true CN202923229U (en) | 2013-05-08 |
Family
ID=48213223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220664558 Expired - Fee Related CN202923229U (en) | 2012-12-06 | 2012-12-06 | Multi-functional protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202923229U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542791A (en) * | 2013-09-23 | 2014-01-29 | 上海卫星装备研究所 | Flange multi-parameter integrated measuring method and device |
| CN108775853A (en) * | 2018-06-13 | 2018-11-09 | 大连诺林机械制造有限公司 | Elbow, bend pipe angle and plane Multifunctional detection measuring tool |
-
2012
- 2012-12-06 CN CN 201220664558 patent/CN202923229U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542791A (en) * | 2013-09-23 | 2014-01-29 | 上海卫星装备研究所 | Flange multi-parameter integrated measuring method and device |
| CN108775853A (en) * | 2018-06-13 | 2018-11-09 | 大连诺林机械制造有限公司 | Elbow, bend pipe angle and plane Multifunctional detection measuring tool |
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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: 20130508 Termination date: 20131206 |