CN202494414U - Measuring instrument for calculating included angle between two line segments in plane - Google Patents
Measuring instrument for calculating included angle between two line segments in plane Download PDFInfo
- Publication number
- CN202494414U CN202494414U CN2011205701014U CN201120570101U CN202494414U CN 202494414 U CN202494414 U CN 202494414U CN 2011205701014 U CN2011205701014 U CN 2011205701014U CN 201120570101 U CN201120570101 U CN 201120570101U CN 202494414 U CN202494414 U CN 202494414U
- Authority
- CN
- China
- Prior art keywords
- protractor
- measuring instrument
- plane
- line segments
- 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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- Length-Measuring Instruments Using Mechanical Means (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a measuring instrument for calculating an included angle between two line segments in a plane. The instrument mainly comprises a top ruler and a protractor, wherein the top ruler is a straight ruler, the protractor is installed in middle section of the top ruler, a left scale and a right scale are vertically installed at two ends of the top ruler respectively, and the scales and the protractor are in the same side. The measuring instrument has the advantages including special functions, convenient operations, convenient and rapid usage, wide application, etc.
Description
Technical fieldThe utility model relates to a kind of survey instrument, especially a kind of angel measuring instrument.
Background technologyAs everyone knows, protractor is the most general measurement of angle instrument of using at present.But the measurement range of stock on hand hornwork is less, measures two angles between the line segment if desired; Need extend line segment, when the extension line of two line segments has coincide point, stop, re-using just energy measurement angle of protractor this moment; Its precision is lower, and operation inconvenience.
Summary of the inventionThe purpose of the utility model provides a kind of surveying instrument that is used to calculate two line segment angles in the plane.
The utility model mainly comprises top chi and protractor, and the top chi is a ruler, the installation hornwork in the stage casing, and the chi two ends are vertical on the top installs left and right scale, and scale and protractor are at homonymy.
During use; The user is placed on this device on the measurement face; And line segment wherein simultaneously perpendicular to about two scales; Require another line segment need pass through the round dot of protractor simultaneously, at this moment, the line segment and the angle between the protractor straight line of process protractor round dot are two angles between the line segment.
Compared with present technology, the beneficial effect of the utility model is: function peculiar, simple, convenient quick, be widely used, use when being adapted at teaching and drawing drawing, can shorten Measuring Time, and improve measuring accuracy.
Description of drawingsFig. 1 is the spatial structure sketch of the utility model.
EmbodimentIn the spatial structure sketch of the utility model shown in Figure 1, mainly comprise top chi 1 and protractor 2, the top chi is a ruler, the installation hornwork in the stage casing, the chi two ends are vertical on the top installs left and right scale 3, and scale and protractor are at homonymy.
Claims (1)
1. surveying instrument that is used to calculate two line segment angles in the plane; Mainly comprise top chi (1) and protractor (2); It is characterized in that: top chi (1) is a ruler; The installation hornwork (2) in the stage casing, left and right scale (3) is vertically installed at the chi on the top (1) two ends, and scale (3) and protractor (2) are at homonymy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205701014U CN202494414U (en) | 2011-12-31 | 2011-12-31 | Measuring instrument for calculating included angle between two line segments in plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205701014U CN202494414U (en) | 2011-12-31 | 2011-12-31 | Measuring instrument for calculating included angle between two line segments in plane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202494414U true CN202494414U (en) | 2012-10-17 |
Family
ID=47000639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205701014U Expired - Fee Related CN202494414U (en) | 2011-12-31 | 2011-12-31 | Measuring instrument for calculating included angle between two line segments in plane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202494414U (en) |
-
2011
- 2011-12-31 CN CN2011205701014U patent/CN202494414U/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: 20121017 Termination date: 20121231 |