CN2273655Y - Right angle coordinate drawing board - Google Patents
Right angle coordinate drawing board Download PDFInfo
- Publication number
- CN2273655Y CN2273655Y CN 96202615 CN96202615U CN2273655Y CN 2273655 Y CN2273655 Y CN 2273655Y CN 96202615 CN96202615 CN 96202615 CN 96202615 U CN96202615 U CN 96202615U CN 2273655 Y CN2273655 Y CN 2273655Y
- Authority
- CN
- China
- Prior art keywords
- drawing board
- chi
- right angle
- angle coordinate
- 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
Links
Landscapes
- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a right angle coordinate drawing board, which is a drawing rule designed for university and middle school students, and relevant technical personnel. The main function is to rapidly and exactly determine the position of the coordinate point of the function in a right angle coordinate system and plot function curves rapidly and approximately. The utility model can also be used for rapidly and exactly drawing grid nets, parallel lines, and some multilateral geometric figures.
Description
The novel mathematics chi that the utility model relates to a kind of student when learning.
Existing numerous university students and middle school students during functional digraph, generally are to utilize ruler or set square to determine the coordinate points position in doing relevant rectangular coordinate system, not only time-consuming, but also error bigger.
The purpose of this utility model just is to overcome the deficiency of ruler or set square, design a kind of novel mathematics and can determine the function coordinate points position in the rectangular coordinate system fast and accurately with chi, help student, and can be similar to fast depict various function curves, utilize this chi also can tie line, grid netting twine and many polygon geometric figures that draws fast.
The purpose of this utility model is to finish in the following way:
Formation of the present utility model: the right is a grid type chi, on have centimetre to be the grid groove of unit, all there is small sircle hole at the intersection point place of grid graduation mark, has four to be the rule of unit with the millimeter on edge, the right and the inner face on this chi.The left side is the picture generic function curve that is used for being similar to and the function curve plate of roundlet.
The main method that this chi uses is: during functional digraph in drawing rectangular coordinate system, utilize the millimeter Cross Scale of chi inner face earlier, do note by mark hole, some point, then according to this some coordinate system that draws.For example determine A (3.4,5.6) point, the initial point of chi is overlapped with coordinate origin, chi axis and the earlier definite integer 3 and 5 of institute's dead in line of doing, then, move 4 millimeters to the right, make progress parallel mobile 6 millimeters along axis is parallel, at this moment 3 and 5 intersection point is the accurate position that A is ordered on the chi, just can do down mark by 3 and 5 intersection point circular hole.The coordinate points of finding out so promptly fast, and is accurate again.After coordinate points has been determined, also can utilize the curve ruler on the left side, the approximate fast function curve that draws.
Utilize the circular hole of grid netting twine intersection point, many polygon geometric figures that also can draw are fast tied line graticule line etc.
For the user, advantage of the present utility model is: drawing clear attractive in appearance, simple in structure, cost is low, comprehensive serviceability is strong, to improve the student when doing the function operation the drawing efficiency and the degree of accuracy and tie line, graticule line fast and many polygon geometric figures that draws fast etc. all of great use.
Description of drawings:
1. scale label 4. ellipses or hyperbolic line drawing line are touched
2. grid graticule 5. parabolas or trigonometric function are retouched line and are touched
3. grid intersection point circular hole
Claims (3)
1, a kind of rectangular co-ordinate drawing board is the mathematics chi of being made by transparent plexiglass plate or transparent hard plastic plate.It is characterized by: the right is a square type grid coordinatometer, and the left side is the function curve template.
2, drawing board according to claim 1, it is characterized in that: the right scale face is marked with parallel with periphery, vertical mutually, equidistant grid groove, there is small sircle hole at its groove cross intersection point place, last, edge, the right indicates a millimeter rule, and the chi inner surface has orthogonal millimeter scale coordinatometer, and this chi scale place indicates number.
3, drawing board according to claim 1 is characterized in that: the left side is the generic function curve ruler, and left margin is a curved side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96202615 CN2273655Y (en) | 1996-01-11 | 1996-01-11 | Right angle coordinate drawing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96202615 CN2273655Y (en) | 1996-01-11 | 1996-01-11 | Right angle coordinate drawing board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2273655Y true CN2273655Y (en) | 1998-02-04 |
Family
ID=33888491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96202615 Expired - Fee Related CN2273655Y (en) | 1996-01-11 | 1996-01-11 | Right angle coordinate drawing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2273655Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856922A (en) * | 2015-08-24 | 2016-08-17 | 周德明 | Drawing device for function graphs and use method thereof |
| CN112829498A (en) * | 2019-11-25 | 2021-05-25 | 张思胜 | Special drawing device of higher mathematics |
-
1996
- 1996-01-11 CN CN 96202615 patent/CN2273655Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856922A (en) * | 2015-08-24 | 2016-08-17 | 周德明 | Drawing device for function graphs and use method thereof |
| CN112829498A (en) * | 2019-11-25 | 2021-05-25 | 张思胜 | Special drawing device of higher mathematics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Pei Jianmeng Document name: payment instructions |
|
| 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 |