CN201385517Y - Scissors-type protractor - Google Patents
Scissors-type protractor Download PDFInfo
- Publication number
- CN201385517Y CN201385517Y CN200920008023U CN200920008023U CN201385517Y CN 201385517 Y CN201385517 Y CN 201385517Y CN 200920008023 U CN200920008023 U CN 200920008023U CN 200920008023 U CN200920008023 U CN 200920008023U CN 201385517 Y CN201385517 Y CN 201385517Y
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- CN
- China
- Prior art keywords
- protractor
- angle
- utility
- model
- scissors
- 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 relates to a scissors-type protractor, which consists of two protractors, wherein the circle centers of the two protractors are riveted through a rivet and can flexibly rotate, and one end of a protractor is provided with a gap which is 1cm in length. When the scissors-type protractor is used to measure an angle, the two straight sides of the two protractors are coincided with the two sides of the angle to be measured through the rotation, and the graduation indicated by the gap is the degree of the angle; when an angle is drawn, the gap is first aligned with the specified graduation, and then two rays are drawn in the opening position so as to complete the angle; and the protractor can also measure the angle of a three-dimensional object such as a screw cap, the use is simple, and the measurement and drawing of the angles can be done without any letup.
Description
Technical field
The utility model relates to a kind of protractor, relates in particular to a kind of shearing-type protractor.
Background technology
The use of common protractor has brought a lot of inconveniences to people, and the one, angulation, to draw the angle step more; The 2nd, it has inside and outside two circle scales, and the beginner easily makes mistakes; The 3rd, could reading after must prolonging earlier during short angle, tolerance limit.
Summary of the invention
The utility model to the deficiency that people have brought a lot of inconveniences, provides a kind of shearing-type protractor at the use of common protractor.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of shearing-type protractor, form by two protractors, the center of circle of described two protractors also can be rotated flexibly by rivet 3 riveteds, and an end of one of them protractor has a breach, and the length of breach is 1 centimetre.
The beneficial effects of the utility model are: when using shearing-type protractor of the present utility model to carry out angulation, overlap with two limits for the treatment of angle measurement by two straight flanges that rotate two protractors, the indicated scale of breach is exactly the number of degrees at this angle; During the picture angle, earlier notch alignment being stipulated scale, just finished along opening two rays of place's picture that this protractor can also be surveyed the angle of three-dimensional thing such as nut, and is easy to use, can accomplish without any letup in angulation and picture angle.
Description of drawings
Fig. 1 is the structural representation of the utility model shearing-type protractor.
In the accompanying drawing, the list of parts of each label representative is as follows:
1, protractor, 2, protractor, 3, rivet, 4, breach.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used to explain the utility model, is not to be used to limit scope of the present utility model.
Fig. 1 is the structural representation of the utility model shearing-type protractor.As shown in Figure 1, described shearing-type protractor is made up of protractor 1 and protractor 2.The center of circle of the center of circle of described protractor 1 and protractor 2 also can be rotated flexibly by rivet 3 riveteds, and an end of described protractor 2 has a breach 4, and the length of breach 4 is 1 centimetre.When using shearing-type protractor of the present utility model to carry out angulation, two straight flanges by rotation amount hornwork 1 and protractor 2 overlap with two limits for the treatment of angle measurement, and breach 4 indicated scales are exactly the number of degrees at this angle; When drawing the angle, with breach 4 aligning regulation scales, just finished along opening two rays of place's picture more earlier, this protractor can also be surveyed the angle of three-dimensional thing such as nut, and is easy to use, can accomplish without any letup in angulation and picture angle.
The above only is preferred embodiment of the present utility model, and is in order to restriction the utility model, not all within spirit of the present utility model and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (1)
1. shearing-type protractor, form by protractor (1), it is characterized in that, also comprise protractor (2), the center of circle of the center of circle of described protractor (1) and protractor (2) also can be rotated flexibly by rivet (3) riveted, one end of described protractor (2) has a breach (4), and the length of breach (4) is 1 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920008023U CN201385517Y (en) | 2009-03-27 | 2009-03-27 | Scissors-type protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920008023U CN201385517Y (en) | 2009-03-27 | 2009-03-27 | Scissors-type protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201385517Y true CN201385517Y (en) | 2010-01-20 |
Family
ID=41578042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920008023U Expired - Fee Related CN201385517Y (en) | 2009-03-27 | 2009-03-27 | Scissors-type protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201385517Y (en) |
-
2009
- 2009-03-27 CN CN200920008023U patent/CN201385517Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20110327 |