CN2471555Y - Multifunctional ellipse compasses - Google Patents
Multifunctional ellipse compasses Download PDFInfo
- Publication number
- CN2471555Y CN2471555Y CN 01240313 CN01240313U CN2471555Y CN 2471555 Y CN2471555 Y CN 2471555Y CN 01240313 CN01240313 CN 01240313 CN 01240313 U CN01240313 U CN 01240313U CN 2471555 Y CN2471555 Y CN 2471555Y
- Authority
- CN
- China
- Prior art keywords
- wheel gear
- hollow wheel
- slideway
- tooth bar
- rule
- 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
The utility model discloses a multi-purpose ellipsograp, belonging to the drawing tools technical field, which is characterized in that a slide way is arranged on a hollow gear, a graduated scale is arranged in the slide way, and the graduated scale is slid in the slide way and is meshed with the hollow gear. The utility model has the advantages of simple structure, compact size, convenient use, diversified purposes and ability to draw a line, a circle and a conic.
Description
The utility model relates to a kind of drawing instrument, specifically a kind of multifunction ellipse rule.
At present, our employed drawing instrument function ratio is more single, and ruler can only be drawn straight line, and compasses can only draw circles, and these drawing instruments do not have versatility each other, separately the own limited function of performance.Drawing conic sections such as parabola, hyperbola and ellipse can only draw by means of ruler, Plotted line and staple, and tool using is many, and each coordinate points and the difficult grasp of parameter when drawing conic section.Particularly employed drawing instrument all is discrete drafting instrument in teaching, engineering design and carpenter's drawing, and these drafting instrument functions are few, and volume ratio is bigger, disperses packing, carries very inconvenient.The special-purpose drawing instrument result of use of some senior conic section is very good, and precision is also high, but these special-purpose drawing instrument complex structures, and price is very high.
The purpose of this utility model just is to provide a kind of multifunction ellipse rule of drawing conic section that have, and can draw straight line, circle and conic section with a kind of instrument, and volume is little, and is very convenient to carry.
For achieving the above object, the utility model can be realized by following scheme: a kind of multifunction ellipse rule, respectively be provided with slideway at the hollow wheel gear upper and lower surface, in slideway, slide to be provided with the tooth bar rule and to be meshed and be connected with hollow wheel gear, described slideway is provided with dial window, and slideway is movably arranged on the both ends of the surface of hollow wheel gear by nut.Both ends of the surface concentric position place at hollow wheel gear is movably equipped with L shaped slideway by bearing, and two L shaped slideways are arranged on the hollow wheel gear opposite ends, is provided with in L shaped slideway one side and steps up set screw.
The utility model has the advantages that: simple in structure, volume is little, and cost is low, and is easy to use, and function is many, can draw out straight line, circle and conic section with an instrument.
The drawing explanation:
Accompanying drawing 1 is the utility model overall structure schematic diagram;
Accompanying drawing 2 is that schematic diagram is looked on the utility model accompanying drawing 1 right side;
Accompanying drawing 3 is that the A-A of the utility model accompanying drawing 1 is to cross-sectional schematic.
Now with specific embodiment the utility model is described in further detail in conjunction with the accompanying drawings:
Do a hollow wheel gear (4), corresponding end respectively is provided with a bearing on hollow wheel gear (4) two sides, is fixed with L shaped slideway (3,7) on bearing, a tooth bar rule (1,6) respectively is housed and is meshed with hollow wheel gear (4) to be connected in L shaped slideway (3,7).The tooth bar rule (1,6) that the process that tooth bar rule (1,6) slides in L shaped slideway (3,7) also drives in hollow wheel gear (4) rotation another L shaped slideway of drive (3,7) slides up and down, promptly how many tooth bar rules (1) increases below hollow wheel gear (4), how many another tooth bar rules (6) must reduce below hollow wheel gear (4), keep they with invariable, meet the basic theories of conic section coordinate translation.During use, allow the fixed point pin (5) of tooth bar rule (1,6) place bifocal place, plane, pencil or ball pen are inserted and rotate on the plane from the hollow position of hollow wheel gear (4) can complete ellipse of picture, can also draw conic sections such as parabola and hyperbola.Can make a ruler with the length scale on the tooth bar rule (1,6) uses.When drawing circular pattern, with corresponding auspicious the interfixing of two tooth bar rules (1,6), also can on tooth bar rule (6), be provided with a groove, fixed point pin (5) at another tooth bar rule (1) locates to be provided with a cylinder, the corresponding auspicious mutual embedding of two tooth bar rules (1,6) is fixed, and is the radius circular pattern that just can draw with the reading length of dial window (8) in the tooth bar rule (6).Steadily reliable for tooth bar rule (1) and hollow wheel gear (4) are meshing with each other, be provided with a set screw (2) in tooth bar rule (1) one side and be convenient to regulate its parameter.
Claims (2)
1, a kind of multifunction ellipse rule, it is characterized in that: respectively be provided with slideway (3,7) at hollow wheel gear (4) upper and lower surface, in slideway (3,7), slide to be provided with tooth bar rule (1,6) and to be meshed and be connected with hollow wheel gear (4), described slideway (3,7) is provided with dial window (8), and slideway (3,7) is movably arranged on the both ends of the surface of hollow wheel gear (4) by nut (9).
2, a kind of multifunction ellipse rule according to claim 1, it is characterized in that: the both ends of the surface concentric position place at hollow wheel gear (4) is movably equipped with L shaped slideway (3,7) by bearing, two L shaped slideways (3,7) are arranged on hollow wheel gear (4) opposite ends, are provided with in L shaped slideway (3) one sides and step up set screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01240313 CN2471555Y (en) | 2001-04-19 | 2001-04-19 | Multifunctional ellipse compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01240313 CN2471555Y (en) | 2001-04-19 | 2001-04-19 | Multifunctional ellipse compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2471555Y true CN2471555Y (en) | 2002-01-16 |
Family
ID=33652560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01240313 Expired - Fee Related CN2471555Y (en) | 2001-04-19 | 2001-04-19 | Multifunctional ellipse compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2471555Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904886A (en) * | 2016-04-18 | 2016-08-31 | 史雄凯 | Elliptic trammels |
| CN109823092A (en) * | 2019-02-25 | 2019-05-31 | 马子阅 | A kind of mathematical tool for drawing standard sine curve |
-
2001
- 2001-04-19 CN CN 01240313 patent/CN2471555Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904886A (en) * | 2016-04-18 | 2016-08-31 | 史雄凯 | Elliptic trammels |
| CN109823092A (en) * | 2019-02-25 | 2019-05-31 | 马子阅 | A kind of mathematical tool for drawing standard sine curve |
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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 |