CN203920147U - Ellipsograph - Google Patents
Ellipsograph Download PDFInfo
- Publication number
- CN203920147U CN203920147U CN201420241811.6U CN201420241811U CN203920147U CN 203920147 U CN203920147 U CN 203920147U CN 201420241811 U CN201420241811 U CN 201420241811U CN 203920147 U CN203920147 U CN 203920147U
- Authority
- CN
- China
- Prior art keywords
- connector
- ellipsograph
- fixed
- pinion
- fixed gear
- 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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Abstract
An ellipsograph, comprises knuckle and pinion, the first connector, fixed bolt, gear wheel, fixed gear, fixed gear shaft and the second connector for being connected with a pin of compasses.Ellipsograph of the present utility model is applicable to the ellipse of making all size that is used in conjunction with common metal compasses, and common metal compasses can be applied mechanically after removing stitch.The utility model adopts gear drive, and the deformation comparison between part is little, and the adjustment of gear parameter relies on two leg subtended angles of compasses and the angular adjustment between two connectors, and convenient adjustment fixed.
Description
Technical field
The utility model relates to a kind of study and work articles for use, relates in particular to a kind of ellipsograph.
Background technology
In daily study and work, often need to draw ellipse, in the occasion having, can use the method for Freehandhand-drawing, figure inaccuracy.In the occasion having, during as mechanical drawing, adopt Approximate, drawing method is loaded down with trivial details.It is also many that middle school student draw oval situation, also uses ellipse figure in mathematical problem, and the skill of drawing sub-elliptical is complicated, is not suitable for Middle school students ' learning.Although had multiple ellipsograph design to exist, drafting ellipse remains one makes us a rather difficult problem for headache.
Utility model content
The purpose of this utility model, exactly in order to address the above problem, provides a kind of easy to use, ellipsograph accurately of drawing.
In order to achieve the above object, the utility model has adopted following technical scheme: a kind of ellipsograph, and it comprises:
For a knuckle that pin is connected with compasses;
Pinion, is fixedly connected on the lower end of knuckle by being arranged on the pinion shaft on top;
The first connector, its one end and pinion shaft are movably connected;
Fixed bolt, it is threaded with the other end of the first connector;
Gear wheel, it is movably connected with the other end of the first connector and is connected with pinion engaged transmission;
Fixed gear, it is connected with gear wheel engaged transmission;
Fixed gear shaft, is fixedly linked with fixed gear;
The second connector, its one end and fixed gear shaft are movably connected, and the other end is connected with fixed bolt.
Described knuckle comprises slice and lower, upper slice top is provided with for a draw-in groove that pin is connected with compasses, the bottom of lower is provided with the disk for being connected with pinion shaft, upper slice and by bolt assembly is adjustable, be connected between lower, described pinion shaft and lower disk is fixedly linked.
One end of described the first connector is provided with the circular hole for being connected with knuckle, and the other end is provided with the internal thread hole for being connected with fixed bolt.
Described fixed bolt bottom is provided with the external screw thread for being connected with the first connector, and top is provided with the handle being suitable for by fingerhold.
One end of described the second connector is provided with the circular hole for being connected with fixed gear shaft, and the other end is provided with the circular hole for being connected with fixed bolt, and this circular hole bottom is provided with the interior step for being connected with the first connector.
The number of teeth of described pinion is 1: 2 with the ratio of the number of teeth of fixed gear.
Described fixed gear shaft bottom is embedded with magnet.
Compared with prior art, the utlity model has following advantage and disadvantage:
1, be applicable to and the coordinating of common metal compasses, can apply mechanically after removing stitch, during the modules such as subsequent development parabola involute, can directly apply mechanically.
2, adopt gear drive, the deformation comparison between part is little, and original employing cotton thread is drawn oval mechanism may be because material distortion has larger error.
3, the adjustment of gear parameter relies on two leg subtended angles of compasses and the angular adjustment between two connectors, and convenient adjustment fixed.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model ellipsograph;
Fig. 2 is the structural representation of facing of the utility model ellipsograph;
Fig. 3 is the side-looking structural representation of the utility model ellipsograph;
Fig. 4 is the plan structure schematic diagram of the utility model ellipsograph;
Fig. 5 is the structural representation of the gear wheel in the utility model;
Fig. 6 is the structural representation of the first connector in the utility model;
Fig. 7 is the structural representation of the fixed bolt in the utility model;
Fig. 8 is the structural representation of the second connector in the utility model;
Fig. 9 is the structural representation of the fixed gear in the utility model;
Figure 10 is the structural representation of the fixed gear shaft in the utility model;
Figure 11 is the structural representation of the knuckle upper slice in the utility model;
Figure 12 is the structural representation of sheet under the knuckle in the utility model;
Figure 13 is the structural representation of the pinion in the utility model.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, ellipsograph of the present utility model, comprises knuckle 1, pinion 2, the first connector 3, fixed bolt 4, gear wheel 5, fixed gear 6, fixed gear shaft 7 and the second connector 8 for being connected with a pin of compasses.
Cooperation is referring to Figure 11, Figure 12, knuckle 1 in the utility model comprises slices 11 and lower 12, upper slice top is provided with the draw-in groove 111 for being connected with a pin of compasses, the bottom of lower is provided with the disk 121 for being connected with pinion shaft, upper slice and by bolt assembly is adjustable, be connected between lower, upper slice and by bolt assembly is adjustable, be connected between lower.Pinion 2 is fixedly linked with the lower end of lower 12.
Cooperation is referring to Figure 13, and the pinion 2 in the utility model is fixedly connected on the lower end of the disk 121 of lower 12 of knuckle 1 by the gear shaft 21 on its top.
Cooperation is referring to Fig. 6, one end of the first connector 3 in the utility model is provided with the circular hole 31 for being connected with knuckle, internal thread hole 32, the first connectors 3 that the other end is provided with for being connected with fixed bolt are movably connected by its circular hole 31 and the gear shaft 21 of pinion 2; By its internal thread hole 32, be threaded with fixed bolt.
Cooperation is referring to Fig. 7, and fixed bolt 4 bottoms in the utility model are provided with the external screw thread 41 for being connected with the first connector, and top is provided with the handle 42 being suitable for by fingerhold.Fixed bolt 4 is threaded with the internal thread hole 32 of the first connector 3 by its external screw thread 41.
Cooperation is referring to Fig. 5, and the gear wheel 5 in the utility model is movably connected with the other end of the first connector 3 and is connected with pinion 2 engaged transmission.
Cooperation is referring to Fig. 9, and the fixed gear 6 in the utility model is connected with gear wheel 5 engaged transmission.
Cooperation is referring to Figure 10, and the fixed gear shaft 7 in the utility model is fixedly linked with fixed gear, and this fixed gear shaft bottom can be embedded with magnet.
Cooperation is referring to Fig. 8, one end of the second connector 8 in the utility model is provided with the circular hole 81 for being connected with fixed gear shaft 7, the other end is provided with the circular hole 82 for being connected with fixed bolt 4, and this circular hole bottom is provided with the interior step 83 for being connected with the first connector 3.One end of the second connector 8 is movably connected with fixed gear shaft 7 by its circular hole 81, and the other end is connected with fixed bolt 4 by its circular hole 82.
The number of teeth of the pinion in the utility model is 1: 2 with the ratio of the number of teeth of fixed gear.Specific to the present embodiment, the z=18 of pinion, m=0.75, the z=36 of fixed gear, m=0.75, the z=48 of gear wheel, m=0.75.
Using method of the present utility model is, first determines two parameters, the one, regulate the subtended angle between compasses bipod; The 2nd, regulate the subtended angle between the first connector and the second connector, regulate and with fixed bolt, fix afterwards.With this, adjust the oval shape size of making.
After adjusting, be positioned over desktop, fixed gear and fixed gear shaft are placed in to elliptical center.When rotating compasses item, pinion rotates, and drives gear wheel.Gear wheel drives and walks about around fixed gear.Finally realize whole mechanism and rotate around elliptical center, and the rotation opposite sign but equal magnitude of angular speed and compasses.The stack of two circular motion is elliptical orbits.Realize thus oval drafting.
Evidence, the mode resistance of rotation compasses is larger, uses inconvenience, can optimize and make with the following method:
First with a hand, pin the upper surface of fixed gear shaft, require fixed gear and drawing surface not to skid.
Then the handle promoting on fixed bolt makes gear wheel move in a circle around fixed gear, naturally drives the rotation of compasses.Realize thus oval drafting.
Claims (7)
1. an ellipsograph, is characterized in that comprising:
For a knuckle that pin is connected with compasses;
Pinion, is fixedly connected on the lower end of knuckle by being arranged on the pinion shaft on top;
The first connector, its one end and pinion shaft are movably connected;
Fixed bolt, it is threaded with the other end of the first connector;
Gear wheel, it is movably connected with the other end of the first connector and is connected with pinion engaged transmission;
Fixed gear, it is connected with gear wheel engaged transmission;
Fixed gear shaft, is fixedly linked with fixed gear;
The second connector, its one end and fixed gear shaft are movably connected, and the other end is connected with fixed bolt.
2. ellipsograph as claimed in claim 1, it is characterized in that, described knuckle comprises slice and lower, upper slice top is provided with for a draw-in groove that pin is connected with compasses, the bottom of lower is provided with the disk for being connected with pinion shaft, upper slice and by bolt assembly is adjustable, be connected between lower, described pinion shaft and lower disk is fixedly linked.
3. ellipsograph as claimed in claim 1, is characterized in that, one end of described the first connector is provided with the circular hole for being connected with knuckle, and the other end is provided with the internal thread hole for being connected with fixed bolt.
4. ellipsograph as claimed in claim 1, is characterized in that, described fixed bolt bottom is provided with the external screw thread for being connected with the first connector, and top is provided with the handle being suitable for by fingerhold.
5. ellipsograph as claimed in claim 1, it is characterized in that, one end of described the second connector is provided with the circular hole for being connected with fixed gear shaft, and the other end is provided with the circular hole for being connected with fixed bolt, and this circular hole bottom is provided with the interior step for being connected with the first connector.
6. ellipsograph as claimed in claim 1, is characterized in that, the number of teeth of described pinion is 1: 2 with the ratio of the number of teeth of fixed gear.
7. ellipsograph as claimed in claim 1, is characterized in that, described fixed gear shaft bottom is embedded with magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241811.6U CN203920147U (en) | 2014-05-12 | 2014-05-12 | Ellipsograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420241811.6U CN203920147U (en) | 2014-05-12 | 2014-05-12 | Ellipsograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203920147U true CN203920147U (en) | 2014-11-05 |
Family
ID=51816015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420241811.6U Expired - Fee Related CN203920147U (en) | 2014-05-12 | 2014-05-12 | Ellipsograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203920147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950326A (en) * | 2014-05-12 | 2014-07-30 | 华东理工大学 | Elliptic trammel |
-
2014
- 2014-05-12 CN CN201420241811.6U patent/CN203920147U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103950326A (en) * | 2014-05-12 | 2014-07-30 | 华东理工大学 | Elliptic trammel |
| CN103950326B (en) * | 2014-05-12 | 2016-04-20 | 华东理工大学 | Ellipsograph |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Xinling Inventor after: Zhang Jingwen Inventor after: Chen Zhenru Inventor before: Zhang Jingwen Inventor before: Chen Zhenru Inventor before: Ma Xinling |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG JINGWEN CHEN ZHENRU MA XINLING TO: MA XINLING ZHANG JINGWEN CHEN ZHENRU |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20150512 |
|
| EXPY | Termination of patent right or utility model |