CN201249610Y - Mathematical drawing rule - Google Patents
Mathematical drawing rule Download PDFInfo
- Publication number
- CN201249610Y CN201249610Y CNU2008201879355U CN200820187935U CN201249610Y CN 201249610 Y CN201249610 Y CN 201249610Y CN U2008201879355 U CNU2008201879355 U CN U2008201879355U CN 200820187935 U CN200820187935 U CN 200820187935U CN 201249610 Y CN201249610 Y CN 201249610Y
- Authority
- CN
- China
- Prior art keywords
- chi
- ruler
- drawing rule
- angle
- size scale
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a mathematical drawing rule, comprising an upper ruler (2), a lower ruler (7), a left ruler (1) and a right ruler (6) which form a rectangular frame. The edges of the upper ruler, the lower ruler, the left ruler and the right ruler are provided with size scales; the middle part of the upper ruler is provided with an angle baseline (3) and hinged with an angle moving ruler (5), and size scales (5a) are arranged on the angle moving ruler; and edges of the left ruler, the right ruler and the lower ruler are provided with angle scales. The utility model has the advantages that the mathematical drawing rule can be used as a general ruler, can measure all the geometric angles within 180 degrees by rotating the angle moving ruler, and also can draw circles by using a circle drawing hole in the angle moving ruler; in addition, horizontal rulers and vertical rulers can be used to design and make tables.
Description
Technical field:
The utility model relates to a kind of drawing rule, is specifically related to the drawing rule that a kind of mathematics is used.
Background technology:
Original drawing rule is generally ruler, set square, can only measure the concrete length of straight line and do the straight line drawing, and geometric angle is measured in inconvenience, is to be that protractor also exists awkward shortcoming.
The utility model content:
The purpose of this utility model is exactly at above-mentioned defective, a kind of not only energy measurement straight line is provided but also can measures the mathematics drawing rule of geometric angle.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of mathematics drawing rule is characterized in that the rectangle frame that it is made up of last chi, following chi, left chi, right chi, and the edge of last chi, following chi, left chi, right chi is provided with size scale.
On the basis of above-mentioned basic technical scheme, can be on described the chi middle part be provided with the angle reference line and in the datum line center a hinged angular movement chi, the angular movement chi is provided with size scale, left chi, edge right and chi down are provided with angle index.Be provided with the picture circular hole corresponding in the angular movement chi with size scale.It can be taken measurement of an angle and draw circle.
In addition, change in the mathematics drawing rule, to be provided with to cooperate and be provided with crossfoot and the perpendicular chi that has size scale, use so that make form with inside casing.
Effect of the present utility model is: both can work as common ruler and use, can measure all geometric angles in 180 degree by the rotation of angular movement chi again, also can utilize the picture circular hole in the angular movement chi to draw circle; Change in addition and can utilize crossfoot, perpendicular chi to design and produce form.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structure chart of crossfoot;
Fig. 3 is the structure chart of perpendicular chi;
Fig. 4 is the A portion enlarged drawing of Fig. 1.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, mathematics drawing rule described in the utility model, it is made up of last chi 2, following chi 7, left chi 1, right chi 6, and forms a rectangle frame, and the edge of last chi, following chi, left chi, right chi is provided with size scale.Last chi middle part is provided with an angle reference line 3 and a hinged angular movement chi 5, and the angular movement chi is provided with size scale 5a, as shown in Figure 4, is provided with the picture circular hole 5b corresponding with size scale in the angular movement chi, draws circle in this hole so that penholder is gone into.Left side chi 1, right chi 6 reach down, and the edge of chi 7 is provided with angle index.
As Fig. 2, shown in Figure 3, be provided with the crossfoot that has size scale 9 that cooperates with rectangle frame 8 in addition and erect chi 10 as annex, use so that make form.
Claims (4)
1, a kind of mathematics drawing rule is characterized in that the rectangle frame that it is made up of last chi (2), following chi (7), left chi (1), right chi (6), and the edge of last chi, following chi, left chi, right chi is provided with size scale.
2, mathematics drawing rule according to claim 1, it is characterized in that the described chi middle part of going up is provided with angle reference line (3), a last chi middle part hinged angular movement chi (5), the angular movement chi is provided with size scale (5a), and the edge of chi (7) was provided with angle index under left chi (1), right chi (6) reached.
3, mathematics drawing rule according to claim 1 is characterized in that being provided with in the angular movement chi picture circular hole (5b) corresponding with size scale.
4, mathematics drawing rule according to claim 1 is characterized in that being provided with in the described mathematics drawing rule crossfoot that has size scale (9) and the perpendicular chi (10) that are used with inside casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201879355U CN201249610Y (en) | 2008-08-17 | 2008-08-17 | Mathematical drawing rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201879355U CN201249610Y (en) | 2008-08-17 | 2008-08-17 | Mathematical drawing rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201249610Y true CN201249610Y (en) | 2009-06-03 |
Family
ID=40745282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201879355U Expired - Fee Related CN201249610Y (en) | 2008-08-17 | 2008-08-17 | Mathematical drawing rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201249610Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2470588A (en) * | 2009-05-28 | 2010-12-01 | Richard Charles Bosville Emerson | Drawing aid |
| CN103978816A (en) * | 2014-05-15 | 2014-08-13 | 周维保 | Multifunctional drawing rule |
| CN105241492A (en) * | 2015-11-05 | 2016-01-13 | 贵州省交通规划勘察设计研究院股份有限公司 | Positioning grid for road lighting detection and road lighting detection method |
| CN112874213A (en) * | 2021-02-09 | 2021-06-01 | 南京信息职业技术学院 | Portable plane drawing tool of dismouting |
-
2008
- 2008-08-17 CN CNU2008201879355U patent/CN201249610Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2470588A (en) * | 2009-05-28 | 2010-12-01 | Richard Charles Bosville Emerson | Drawing aid |
| GB2470588B (en) * | 2009-05-28 | 2013-07-24 | Richard Charles Bosville Emerson | Drawing aid |
| CN103978816A (en) * | 2014-05-15 | 2014-08-13 | 周维保 | Multifunctional drawing rule |
| CN105241492A (en) * | 2015-11-05 | 2016-01-13 | 贵州省交通规划勘察设计研究院股份有限公司 | Positioning grid for road lighting detection and road lighting detection method |
| CN112874213A (en) * | 2021-02-09 | 2021-06-01 | 南京信息职业技术学院 | Portable plane drawing tool of dismouting |
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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: 20090603 Termination date: 20090917 |