CN2852038Y - Precise vernier protractor - Google Patents
Precise vernier protractor Download PDFInfo
- Publication number
- CN2852038Y CN2852038Y CN 200520093467 CN200520093467U CN2852038Y CN 2852038 Y CN2852038 Y CN 2852038Y CN 200520093467 CN200520093467 CN 200520093467 CN 200520093467 U CN200520093467 U CN 200520093467U CN 2852038 Y CN2852038 Y CN 2852038Y
- Authority
- CN
- China
- Prior art keywords
- protractor
- mark post
- angle
- edge
- measuring
- 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)
Abstract
The utility model relates to a precise vernier protractorb which comprises a circular protractor and an indicating needle which extends from the circle center to the zero graduation, wherein graduations are orderly arranged at the edge of the circular protractor; a rotating shaft is arranged on the circle center of the circular protractor, a rotating mark post is sheathed with the rotating shaft and the top end of the rotating mark post is provided with a magnifier. People leads the indicating needle to coincide with one edge of an angle which needs measuring during the measuring, then the mark post is rotated, the mark post coincides with the other edge, and the separation angle between the mark post and the indicating needle at that time, is the value of the angle which needs measuring; the scale value of the protractor is scaled up by the magnifier arranged on the top end of the mark post during the measuring process, which is convenient for the observation of a user. The utility model has the advantages of simple structure, convenient observation, convenience, practicality, economy, beautiful appearance, time saving, etc. and can also measure the value of an obtuse angle one time only.
Description
Technical field the utility model relates to a kind of survey instrument, especially a kind of accurately new-type easily protractor.
Technical background is present, and the instrument that people are used to take measurement of an angle in study and work mainly relies on protractor, but also there is deficiency in present protractor, and for example, the user must just can learn the number of degrees at obtuse angle through converting; And the scale numerical value of protractor is very tiny, the problem that exists inconvenience to observe for the relatively poor user of eyesight.For this reason, provide a kind of new-type protractor that can be convenient for measuring and can conveniently observe very necessary for people.
The summary of the invention the purpose of this utility model provides a kind of accurate vernier protractor, is used to solve problems such as common protractor measurement inconvenience and error are bigger.
For achieving the above object, the accurate vernier protractor of the utility model comprises circular protractor and extends to the pointer of zero graduation from circle centre position, is provided with angle index successively in the edge of circular protractor, circular protractor 360 five equilibriums; Circle centre position at circular protractor is provided with rotating shaft, rotation mark post of socket in rotating shaft; Be provided with magnifier on the top of rotating mark post.
After adopting said structure, the user can rely on the protractor of 360 degree to measure the obtuse angle fast, again the process through converting; Rotate the also scalable scale of magnifier on mark post top, be convenient to the user and observe, avoid producing error.
The utility model has the advantages that: rational in infrastructure,, be convenient to observe, convenient and practical, economical and beautiful, can also the blunt angle value of disposable measurement, save time.
Description of drawings Fig. 1 is the one-piece construction synoptic diagram of the accurate vernier protractor of the utility model.
Embodiment as shown in Figure 1, the accurate vernier protractor of the utility model comprises circular protractor 1 and extends to the pointer 2 of zero graduation from circle centre position, is provided with angle index successively in the edge of circular protractor 1, and circular protractor 1 is divided into 360 degree; Circle centre position at circular protractor 1 is provided with rotating shaft 3, rotation mark post 4 of socket in rotating shaft 3; Be provided with magnifier 5 on the top of rotating mark post 4.When measuring, the user overlaps pointer 2 on the one side for the treatment of angle measurement, and mark post 4 is rotated in rotation then, and it is overlapped with another side, and at this moment the angle between mark post 4 and the pointer 2 is the degree value for the treatment of angle measurement; In measuring process, the scale value of the magnifier 5 amplification quantity hornworks 1 on mark post 4 tops is convenient to the user and is observed, thereby reduces error.
Claims (2)
1, a kind of accurate vernier protractor comprises circular protractor (1) and extends to the pointer (2) of zero graduation from circle centre position that it is characterized in that: the edge at circular protractor (1) is provided with angle index successively, circular protractor (1) 360 five equilibrium; Circle centre position at circular protractor (1) is provided with rotating shaft (3), goes up a rotation mark post of socket (4) in rotating shaft (3).
2, accurate vernier protractor as claimed in claim 1 is characterized in that: be provided with magnifier (5) on the top of rotating mark post (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093467 CN2852038Y (en) | 2005-11-14 | 2005-11-14 | Precise vernier protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093467 CN2852038Y (en) | 2005-11-14 | 2005-11-14 | Precise vernier protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2852038Y true CN2852038Y (en) | 2006-12-27 |
Family
ID=37585997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520093467 Expired - Fee Related CN2852038Y (en) | 2005-11-14 | 2005-11-14 | Precise vernier protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2852038Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912443A (en) * | 2020-07-31 | 2020-11-10 | 广东电网有限责任公司 | Outdoor meter protective housing of transformer substation |
-
2005
- 2005-11-14 CN CN 200520093467 patent/CN2852038Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912443A (en) * | 2020-07-31 | 2020-11-10 | 广东电网有限责任公司 | Outdoor meter protective housing of transformer substation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |