CN206030891U - Multifunctional protractor - Google Patents
Multifunctional protractor Download PDFInfo
- Publication number
- CN206030891U CN206030891U CN201620843492.5U CN201620843492U CN206030891U CN 206030891 U CN206030891 U CN 206030891U CN 201620843492 U CN201620843492 U CN 201620843492U CN 206030891 U CN206030891 U CN 206030891U
- Authority
- CN
- China
- Prior art keywords
- protractor
- scale value
- angle
- ball
- arc
- 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
Multifunctional protractor, including the protractor, be equipped with semi -circular scale mark and scale interval on the protractor, still be equipped with a straight flange, its characterized in that: be equipped with on the protractor and had the semi -circular scale interval second scale interval that suits, the protractor is equipped with a segmental cavity along semi -circular scale mark, the segmental cavity internalization is equipped with a ball, the ball can freely roll in the segmental cavity.
Description
Technical field
Multi-function protractor, belongs to survey tool field.
Background technology
Current protractor, can also draw straight line using the straight flange of protractor in addition to the angle for picture certain angle.But
There are the following problems for current protractor, one：When measuring the angle that coplanar two line is formed with existing protractor, it is necessary to make angulation
The center of device is overlapped with the summit at drawn angle or institute's angle measurement；The both sides that angle hour angle is drawn with current protractor will also grow protractor and put down
Face further could be mapped labelling；The function of not having determined level of next protractor.
The content of the invention
There is determined level function in order to be able to make protractor, and need not make in protractor during with protractor angle measurement, picture angle
The heart is overlapped with the summit at drawn angle, can be drawn angle easily and fast, be devised the multi-function protractor.
Multi-function protractor, including protractor, the protractor is provided with semicircle graduation mark and scale value, is additionally provided with one
Straight flange；It is characterized in that：The protractor is provided with and is adapted the second scale value with existing semicircle scale value；The protractor
An arc-shaped cavity is provided with along semicircle graduation mark, a ball in the arc-shaped cavity, is movably equipped with.The ball being capable of edge
Arc-shaped cavity freely to roll.Second scale value is corresponding with semicircle scale value.I.e. at the 90 of the second scale value, correspondence
In 0 degree of protractor, 0 degree of the second scale value is located at 90 degree of protractor.
The side of graduation mark is provided with protractor, ball can be clearly seen in the arc-shaped cavity and its be scrolled through
Journey.
Beneficial effect, with determined level function, draws horizontal line, and need not make protractor during with protractor angle measurement, picture angle
Center overlap with the summit at drawn angle, angle can be drawn easily and fast and facilitate user, it may have have set square and straight
The function of chi.It is highly reliable, increase cost less.
The levelness of line is judged with multi-function protractor.The straight flange of protractor is overlapped with measured line placement, works as ball
Under gravity, angle when being rolled to the minimum point of arc-shaped cavity represented by the second scale value of ball position is with regard to generation
Table measured line and horizontal angle.
Description of the drawings
Fig. 1：A kind of multifunction teaching protractor figure.
Fig. 2：The schematic diagram of multi-function protractor determined level degree.
The each component names of accompanying drawing：1 arc-shaped cavity, 2 balls, 3-- semicircle graduation mark and scale value, 4 handles,
5 protractor centers.
Specific embodiment
Multi-function protractor, including protractor, the protractor is provided with semicircle graduation mark and scale value（3）；It is described
Protractor is provided with a straight flange, it is characterised in that：The protractor is provided with and was adapted for the second quarter with existing semicircle scale value
Angle value；The protractor is along semicircle graduation mark（3）It is provided with an arc-shaped cavity（1）, the arc-shaped cavity（1）Inside it is movably equipped with
One ball（2）.The ball（2）Can be along arc-shaped cavity（1）Freely roll.
The levelness of line is judged with multi-function protractor.The straight flange of protractor is overlapped with measured line placement, works as ball
Under gravity, it is rolled to the minimum point of arc-shaped cavity.Second scale value of ball position（Handwritten portions in figure）Institute
The angle of expression just represents measured line and horizontal angle, sees Fig. 2.
Claims (1)
1. multi-function protractor, including protractor, the protractor is provided with semicircle graduation mark and scale value, is additionally provided with always
Side；It is characterized in that：The protractor is provided with and is adapted the second scale value, second scale with existing semicircle scale value
Value is corresponding with semicircle scale value, and corresponding to 0 degree of protractor at 90 degree of the second scale value, 0 degree of the second scale value is right
Should be in the 90 of protractor degree；The protractor is provided with an arc-shaped cavity along semicircle graduation mark, activity in the arc-shaped cavity
A ball is provided with, the ball can be freely rolled in the arc-shaped cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620843492.5U CN206030891U (en) | 2016-08-05 | 2016-08-05 | Multifunctional protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620843492.5U CN206030891U (en) | 2016-08-05 | 2016-08-05 | Multifunctional protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206030891U true CN206030891U (en) | 2017-03-22 |
Family
ID=58309318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620843492.5U Expired - Fee Related CN206030891U (en) | 2016-08-05 | 2016-08-05 | Multifunctional protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206030891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107031243A (en) * | 2017-04-21 | 2017-08-11 | 王有旺 | A kind of multi-function set square for teaching |
-
2016
- 2016-08-05 CN CN201620843492.5U patent/CN206030891U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107031243A (en) * | 2017-04-21 | 2017-08-11 | 王有旺 | A kind of multi-function set square for teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20190805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |