CN206124553U - Oval chi of drawing - Google Patents
Oval chi of drawing Download PDFInfo
- Publication number
- CN206124553U CN206124553U CN201620630910.2U CN201620630910U CN206124553U CN 206124553 U CN206124553 U CN 206124553U CN 201620630910 U CN201620630910 U CN 201620630910U CN 206124553 U CN206124553 U CN 206124553U
- Authority
- CN
- China
- Prior art keywords
- scale
- vernier
- line
- wires hole
- inelastic
- 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
Abstract
The utility model discloses a provide one kind the utility model discloses an oval chi of drawing adopts by taking 1, two on scale ruler taking forming with the first vernier of fixing of sideband through wires hole 2, 3, two isometric first inelastic drawing lines of second vernier 4, second inelastic drawing line 5 of scale ruler 1 the utility model discloses a draw the chi elliptical curve that can draw up fast, the step that needs to adjust is few, and the accuracy is high, and is easy and simple to handle.
Description
Technical field
This utility model is related to a kind of drawing tool chi of conic section, more particularly to a kind of ellipse drawing chi.
Background technology
When student does one's exercises, it is often necessary to draw elliptic curve, in order to quickly draw elliptic curve, regulating step is needed
Few, degree of accuracy is high, instrument simple to operate.Need to provide a kind of ellipse drawing chi easy to use to student now.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of few regulating step, high precision, ellipse simple to operate
Draw chi.
To solve above-mentioned technical problem, ellipse drawing chi of the present utility model is by 1, two, ruler with a scale with a scale straight
The homonymy of chi 1 fixing the inelastic drafting line 4, second of the first vernier 2,3, two isometric first of the second vernier with through wires hole
Inelastic drafting line 5 is constituted, and there is support at the two ends of ruler with a scale 1, and " 0 " scale one end supports for first on ruler with a scale 1
6, maximum scale one end is the second support 7, has through wires hole in the first support 6, with the second vernier 3 and the first vernier being arranged in order
In the same horizontal line, first inelastic inelastic one end for drawing line 5 of line 4 and second of drawing is fixed on the to through wires hole on 2
One supports on 6 through wires hole, and the other end sequentially passes through the through wires hole of the through wires hole of the second vernier 3 and the first vernier 2, is fixed on the
On the through wires hole of one vernier 2, the first inelastic inelastic line length for drawing line 5 of line 4 and second of drawing is wearing from the first support 6
To the length at maximum scale on ruler with a scale 1, first supports " 0 " scale pair of 6 right sides and ruler with a scale 1 on string holes right side
Together.
The beneficial effects of the utility model are can quickly to draw elliptic curve when student does one's exercises, and need what is adjusted
Step is few, and degree of accuracy is high, easy to operate.
Description of the drawings
Fig. 1 is the structural representation of ellipse drawing chi of the present utility model；
Fig. 2 defines schematic diagram for oval.
In figure：1 represents that ruler with a scale, 2 represent that the first vernier, 3 represent that the second vernier, 4 represent the first inelastic drafting
Line, 5 represent that the second inelastic drafting line, 6 represent that the first support, 7 represent that second supports
Specific embodiment
(it is schematically, there is no strict size corresponding relation between accompanying drawing) below in conjunction with the accompanying drawings and specific embodiment party
Formula is described in further detail to this utility model, and the example below is only the exemplary theory to the specific embodiment of the invention
Bright, those skilled in the art can carry out conventional replacement and change for the effect for realizing the present invention, and it is right to be not construed as
The restriction of the scope of the present invention.
This utility model is further illustrated with reference to the accompanying drawings and examples.
According to《Regular senior secondary school's curricular standard test textbook mathematics takes as an elective course 2-1》(people teaches B versions) oval definition：In plane
With two fixed point F1, F2It is distance and equal to constant (be more than | F1F2|) the track (or set) of point be called ellipse.I.e.：|PF1
|+|PF2|=2a (2a ＞ | F1F2|), specifically can refer to accompanying drawing 2 and understand.
According to oval definition, on ruler with a scale, the movement of a vernier is first passed through, it is determined that the focal length of ellipse, then lead to
Cross the length that another vernier determines setting-out.Then two focuses in two focuses and diagram paper on chi are overlapped, is drawn with pen
Tight side line segment, promotes pen, you can draw half it is oval, then equally using opposite side line segment draw another half it is oval, that is, reach
Quick and precisely draw whole oval purpose.
The ellipse drawing chi of the application is by 1, two homonymy consolidating with through wires hole in ruler with a scale 1 of ruler with a scale
The isometric inelastic drafting line of fixed first vernier 2, the second vernier 3, two (the first inelastic drafting line 4, the second inelastic drafting
Line 5) composition.There is support at the two ends of ruler with a scale 1, and " 0 " scale one end supports 6 for first on ruler with a scale 1, maximum scale
One end is the second support 7, has through wires hole in the first support 6, with the threading on the second vernier 3 and the first vernier 2 being arranged in order
In the same horizontal line, first inelastic inelastic one end for drawing line 5 of line 4 and second of drawing is fixed on the first support 6 in hole
On through wires hole, the other end sequentially passes through the through wires hole of the through wires hole of the second vernier 3 and the first vernier 2, is fixed on the first vernier 2
On through wires hole, the first inelastic inelastic line length for drawing line 5 of line 4 and second of drawing is from the right side of the first through wires hole for supporting 6
Length to ruler with a scale 1 at maximum scale, first supports 6 right sides to align with " 0 " scale of ruler with a scale 1.
During drawing, drawing rule is erected, oval F1Point is located at the first through wires hole right side for supporting 6, orientation under " 0 " scale
Put, F2Point is the leftward position of the second vernier 3, and both sides support and also play balanced action.When using, first the second vernier 3 is slided into into F2Position
Put and fix, to determine | F1F2| distance；Slide again the first vernier 2, makes last scale and first of ruler with a scale 1
The distance between left side of vernier 2 is 2a- | F1F2|, the first vernier 2 is fixed, tense two between the first support 6 and the second vernier 3
Section line, this two sections of line lengths are 2a, and the both sides of rule that this two end line is placed in；6 right sides and the second trip are supported by first
The left side of mark 3 is respectively aligned to the F on paper1And F2Point, with pen the side line segment in the middle of the two points is tensed, and allows pen perpendicular to paper,
Promote pen, you can draw half it is oval, then equally using opposite side line segment draw another half it is oval, that is, complete painting for whole ellipse
System.
The ellipse drawing chi determines first by the distance between the first vernier 2 and ruler with a scale 1 last scale
The distance of 2a between 6 right sides and the left side of the second vernier 3 is supported, easy to operate, degree of accuracy is high；The ellipse drawing chi arranges two etc.
Long line segment, it is to avoid single line draws ellipse to be needed to overturn trouble and the error that ruler brings.
Claims (1)
1. a kind of ellipse drawing chi, it is characterised in that it is by ruler with a scale (1), two homonymy bands in ruler with a scale (1)
Through wires hole fix the first vernier (2), the second vernier (3), two isometric first it is inelastic draw line (4), second without bullet
Power draws line (5) composition, and there is support at the two ends of ruler (1) with a scale, and " 0 " scale one end is first on ruler (1) with a scale
Support (6), maximum scale one end is the second support (7), has through wires hole in the first support (6), with the second vernier (3) being arranged in order
With the through wires hole on the first vernier (2) in the same horizontal line, the first inelastic drafting line (4) and the second inelastic drafting line
(5) one end is fixed on the through wires hole of the first support (6), and the other end sequentially passes through the through wires hole and first of the second vernier (3)
The through wires hole of vernier (2), is fixed on the through wires hole of the first vernier (2), and the first inelastic line (4) and second of drawing inelastic is painted
The line length of line (5) processed is to support the through wires hole right side of (6) to the length at maximum scale on ruler with a scale (1) from first, the
One supports (6) right side to align with " 0 " scale of ruler with a scale (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620630910.2U CN206124553U (en) | 2016-06-24 | 2016-06-24 | Oval chi of drawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620630910.2U CN206124553U (en) | 2016-06-24 | 2016-06-24 | Oval chi of drawing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206124553U true CN206124553U (en) | 2017-04-26 |
Family
ID=58560833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620630910.2U Expired - Fee Related CN206124553U (en) | 2016-06-24 | 2016-06-24 | Oval chi of drawing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206124553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112043355A (en) * | 2020-09-04 | 2020-12-08 | 田世芹 | Intracranial puncture positioning device and positioning method thereof |
-
2016
- 2016-06-24 CN CN201620630910.2U patent/CN206124553U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112043355A (en) * | 2020-09-04 | 2020-12-08 | 田世芹 | Intracranial puncture positioning device and positioning method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206124553U (en) | Oval chi of drawing | |
| CN204514216U (en) | A kind of slide calliper rule protractor | |
| CN205364943U (en) | Novel combination teaching aid | |
| CN204712734U (en) | Telescopic compound teaching aid | |
| CN205997593U (en) | Chi drawn by parabola | |
| CN202337139U (en) | Simple tool for drawing ellipses | |
| CN203567419U (en) | Mathematics teaching appliance | |
| CN204414913U (en) | A kind of board of education facilitating math teacher to impart knowledge to students | |
| CN201979919U (en) | Multipurpose ruler for Chinese and mathematics teaching | |
| CN204375268U (en) | Teaching appliance is understood in hyperbolic curve definition | |
| CN204605320U (en) | A kind of marker used for English teaching | |
| CN204077163U (en) | Multi-functional positive set square | |
| CN204222481U (en) | Auxiliary teaching aid for mathematical education | |
| CN205416886U (en) | Mathematics teaching ruler that draws | |
| CN204398686U (en) | Auxiliary teaching aid for mathematical education | |
| CN205381065U (en) | Junior high school mathematics oval drawing compass of imparting knowledge to students | |
| CN204348176U (en) | Teaching appliance is understood in oval definition | |
| CN202319567U (en) | Mathematical teaching scale | |
| CN203110681U (en) | Ruler for elementary school mathematics teaching | |
| CN204382960U (en) | A kind of Multifunctional mathematics teaching instrument | |
| CN206999984U (en) | A kind of high school mathematics teaching plotter | |
| CN204526539U (en) | A kind of art teaching chi | |
| CN205272970U (en) | Napier's compasses teaching aid | |
| CN204354677U (en) | Mathematical education assistant teaching aid | |
| CN206124551U (en) | Chi is drawn to hyperbola |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20190624 |