CN2155312Y - Drawing protractor - Google Patents
Drawing protractor Download PDFInfo
- Publication number
- CN2155312Y CN2155312Y CN 93238030 CN93238030U CN2155312Y CN 2155312 Y CN2155312 Y CN 2155312Y CN 93238030 CN93238030 CN 93238030 CN 93238030 U CN93238030 U CN 93238030U CN 2155312 Y CN2155312 Y CN 2155312Y
- Authority
- CN
- China
- Prior art keywords
- protractor
- model
- utility
- draughtsmen
- circular structure
- 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
Links
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a multifunctional drawing protractor, which comprises a 360 DEG hollow circular structure and a certain volume of liquid arranged in the interlayer of the hollow circular structure. The utility model has the functions of drawing up the parallel lines of any line segments and drawing up the angle of any degree precisely at any position except the horizontal plane.
Description
The utility model relates to a kind of multi-functional draughtsmen's protractor.
Present multi-functional draughtsmen's protractor is many, but complex structure, and use also inconvenient.
The purpose of this utility model is exactly at above-mentioned weak point, and a kind of draughtsmen's protractor simple in structure and easy to use, multi-functional is provided.
The purpose of this utility model is finished like this: draughtsmen's protractor is 360 ° and circular configuration hollow, and the liquid of a constant volume is housed in the circular configuration interlayer of hollow.
Accompanying drawing 1 is a kind of structure chart of draughtsmen's protractor;
Further be illustrated below in conjunction with drawings and Examples, but be not limited only to following examples.
By accompanying drawing 1 as can be known, draughtsmen's protractor is 360 ° and circular configuration hollow, and the liquid of a constant volume is housed in the circular configuration interlayer of hollow.
The utlity model has the parallel lines of any line segment that draws exactly in any position except that horizontal plane, arbitrarily the angle of the number of degrees.Can be used for measuring height, the gradient, object distance, latitude simultaneously, yet can on mark post, check that whether mark post is perpendicular to ground.
Claims (1)
- A kind of draughtsmen's protractor is characterized in that: draughtsmen's protractor is the circular configuration of 360 ° and hollow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238030 CN2155312Y (en) | 1993-01-03 | 1993-01-03 | Drawing protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93238030 CN2155312Y (en) | 1993-01-03 | 1993-01-03 | Drawing protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2155312Y true CN2155312Y (en) | 1994-02-09 |
Family
ID=33812848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93238030 Expired - Fee Related CN2155312Y (en) | 1993-01-03 | 1993-01-03 | Drawing protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2155312Y (en) |
-
1993
- 1993-01-03 CN CN 93238030 patent/CN2155312Y/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 | ||
| 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 |