CN200975866Y - Protractor - Google Patents
Protractor Download PDFInfo
- Publication number
- CN200975866Y CN200975866Y CN 200620154228 CN200620154228U CN200975866Y CN 200975866 Y CN200975866 Y CN 200975866Y CN 200620154228 CN200620154228 CN 200620154228 CN 200620154228 U CN200620154228 U CN 200620154228U CN 200975866 Y CN200975866 Y CN 200975866Y
- Authority
- CN
- China
- Prior art keywords
- protractor
- axle
- utility
- model
- bodies
- 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 is characterized in that the protractor comprises two semicircular graduated protractor bodies which can measure angles from 0 to 90 degrees, the two protractor bodies are coaxially positioned, any protractor body can rotate on the axle, a tightness adjusting nut is positioned on the axle of the two protractor bodies. The nut is a transparent body. A circular magnifying glass is positioned facing towards the graduated side of the axle of the two protractor bodies, an inner screw hole is positioned at the center of the magnifying glass, the axle of the two protractor bodies is provided with the screw thread which is fitted with the inner screw. The utility model is the protractor that can measure the angles of any degree. Another objective of the utility model is convenient measure and reading, the utility model is suitable for various kinds of people.
Description
Technical field
The utility model relates to a kind of survey instrument, is the improvement technology of protractor specifically.
Background technology
The protractor that people use can only be measured the angle between 0 ° to 90 °, then can not measure for the angle greater than 90 °, scale on the protractor is often comparatively meticulous in addition, make troubles for people's reading, particularly for the not too nimble personage of eyes, influence is just bigger.
Summary of the invention
The purpose of this utility model provides a kind ofly can measure protractor at any angle.Another purpose is to be convenient for measuring and reading, is suitable for various people and uses.
The purpose of this utility model is achieved through the following technical solutions.
A kind of protractor is characterized in that: described protractor comprises that two semicircles have the protractor body of the angle between mensurable 0 ° to 90 ° of the scale, two coaxial installations of protractor body, and arbitrary protractor body can rotate around the axle center.
Described two protractor body axle cores are provided with one and regulate the degree of tightness nut.
Described nut is a transparent body.
Be provided with a circular enlarging lens towards a graduated side on described two protractor body axle cores, the center of enlarging lens is provided with an inner bolt hole, and two protractor body axle cores are provided with the screw thread that matches with inner bolt hole.
The said protractor of the utility model, since comprise the protractor body of the angle between mensurable 0 ° to 90 ° of two semicircles, two coaxial installations of protractor body, and arbitrary protractor body can rotate around the axle center, like this, measure angle by rotating a protractor body greater than 90 °.
Owing to also be provided with a circular enlarging lens towards a graduated side on two protractor body axle cores, the center of enlarging lens is provided with an inner bolt hole, two protractor body axle cores are provided with the screw thread that matches with inner bolt hole, like this, can aim at and reading numerical values by enlarging lens.
Description of drawings
Fig. 1 is the structural representation of the utility model protractor.
Embodiment
Below in conjunction with accompanying drawing the utility model protractor is described further.
As shown in Figure 1, comprise that 1, two protractor body of protractor body coaxial core 2 that two semicircles have an angle between mensurable 0 ° to 90 ° of the scale installs, arbitrary protractor body 1 can rotate around the axle center.On two protractor body axle cores, be provided with one and regulate the degree of tightness nut.Nut is a transparent body.
Also be provided with a circular enlarging lens towards a graduated side on 1 core 2 of two protractor bodies, the center of enlarging lens is provided with an inner bolt hole, and two protractor body axle cores are provided with the screw thread that matches with inner bolt hole.
Claims (4)
1. protractor is characterized in that: described protractor comprises that two semicircles have the protractor body of the angle between mensurable 0 ° to 90 ° of the scale, two coaxial installations of protractor body, and arbitrary protractor body can rotate around the axle center.
2. protractor according to claim 1 is characterized in that: described two protractor body axle cores are provided with one and regulate the degree of tightness nut.
3. protractor according to claim 2 is characterized in that: described nut is a transparent body.
4. protractor according to claim 1, it is characterized in that: be provided with a circular enlarging lens towards a graduated side on described two protractor body axle cores, the center of enlarging lens is provided with an inner bolt hole, and two protractor body axle cores are provided with the screw thread that matches with inner bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620154228 CN200975866Y (en) | 2006-12-01 | 2006-12-01 | Protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620154228 CN200975866Y (en) | 2006-12-01 | 2006-12-01 | Protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200975866Y true CN200975866Y (en) | 2007-11-14 |
Family
ID=38902150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620154228 Expired - Fee Related CN200975866Y (en) | 2006-12-01 | 2006-12-01 | Protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200975866Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968741A (en) * | 2014-05-26 | 2014-08-06 | 国家电网公司 | Power cable turning radius tester |
-
2006
- 2006-12-01 CN CN 200620154228 patent/CN200975866Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968741A (en) * | 2014-05-26 | 2014-08-06 | 国家电网公司 | Power cable turning radius tester |
| CN103968741B (en) * | 2014-05-26 | 2016-07-06 | 国家电网公司 | Power cable turning radius analyzer |
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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 |