CN203697784U - Hyperbola plotting instrument - Google Patents
Hyperbola plotting instrument Download PDFInfo
- Publication number
- CN203697784U CN203697784U CN201420042959.7U CN201420042959U CN203697784U CN 203697784 U CN203697784 U CN 203697784U CN 201420042959 U CN201420042959 U CN 201420042959U CN 203697784 U CN203697784 U CN 203697784U
- Authority
- CN
- China
- Prior art keywords
- hyperbola
- sheave
- pen
- chi
- reel
- 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 hyperbola plotting instrument which comprises an elongated ruler body, a ruler strip, a pen clamp and a pen arranged on the pen clamp. The pen clamp is arranged on the ruler strip and can move along the ruler strip, line clamps are arranged at the two ends of the ruler strip, the ruler body is provided with a kidney-shaped groove in the length direction, two focus shafts are embedded into the kidney-shaped groove, nuts are arranged on the lower portions of the focus shafts, the upper portions of the focus shafts are provided with sheaves, a reel is arranged in the middle of the ruler body, two flexible lines with the same length are wound around the reel, one flexible line is wound around one sheave to be connected with one wire clamp at one end of the ruler strip, and the other flexible line is wound around the other sheave to be connected with the other wire clamp at the other end of the ruler strip. The hyperbola plotting instrument can accurately plot a hyperbola and facilitate mathematical teaching.
Description
Technical field
The present invention relates to a kind of drawing instrument, be specifically related to draw in a kind of mathematical education hyp instrument.
Background technology
In high school mathematics teaching, there is no the special hyp instrument of accurately drawing, while drawing hyperbola, often according to feeling to carry out Freehandhand-drawing, the hyperbola inaccuracy of drafting, imparts knowledge to students inconvenient.
Summary of the invention
The object of the invention is the deficiency existing for prior art, a kind of hyperbola plotter is provided.
The object of the invention is to realize by following technological means:
Comprise strip chi body, chi band, pen clip, be located at the pen on pen clip, pen clip is located on chi band, can be along chi Tape movement, and chi band two ends are provided with wire clamp, chi body is provided with kidney slot along its length, kidney slot is embedded with two focal axis, and focal axis bottom is provided with nut, and top is provided with sheave, the centre of chi body is provided with reel, on reel, be wound around the flexible cord of two equal length, a flexible cord is walked around the wire clamp that a sheave connects chi band one end, and another flexible cord is walked around the wire clamp that another sheave connects the chi band other end.
Above-mentioned focal axis, sheave, reel adopt plastic material.
Compared with prior art the present invention has following obvious advantage: utilize this instrument can draw exactly hyperbola, the convenient mathematical education of launching.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is A-A sectional view in Fig. 1;
In figure, 1-chi body, 101-kidney slot, 2-sheave, 3-chi band, 301-wire clamp, 4-focal axis, 5-nut, 6-reel, 601 flexible cords one, 602-flexible cord two, 7-pen clip, 8-pen.
Detailed description of the invention
Below in conjunction with brief description of the drawings and detailed description of the invention, the present invention is described in further detail:
Hyperbola plotter as shown in Figure 1, comprise the chi body 1 of strip, chi band 3, pen clip 7, be located at the pen 8 on pen clip 7, pen clip 7 is located on chi band 3, can move along chi band 3, chi band 3 two ends are provided with wire clamp 301, chi body 1 is provided with kidney slot 101 along its length, kidney slot 101 is embedded with two focal axis 4, focal axis 4 bottoms are provided with nut 5, top is provided with sheave 2, the centre of chi body 1 is provided with reel 6, on reel 6, be wound around flexible cord 1 and the flexible cord 2 602 of two equal length, flexible cord 1 is walked around the wire clamp 301 that a sheave 2 connects chi band 3 one end, flexible cord 2 602 is walked around the wire clamp 301 that another sheave 2 connects chi band 3 other ends.
When use, chi body 1 is placed on blackboard, adjust the position of bifocal axle 4, as hyp focus, screw the fixing bifocal axle 4 of nut 5, mobile pen clip 7 is to suitable position, what pen clip 7 was exactly point on hyperbola to the distance of focus apart from the difference of the distance of focal axis 4 is poor, by fixing by wire clamp 301 with chi band 3 to flexible cord 1 and flexible cord 2 602, move up or down pen clip 7, in movement, keep pen clip 7 and focal axis 4 chi band 3 be straight line, control focal axis 4 and emit flexible cord 1 and the flexible cord 2 602 of equal length by reel 6, pen 8 curves that draw are hyperbola.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., all should be included in protection domain of the present utility model.
Claims (2)
1. hyperbola plotter, comprise the chi body of strip, chi band, pen clip, be located at the pen on described pen clip, described pen clip is located on described chi band, can be along described chi Tape movement, it is characterized in that: described chi band two ends are provided with wire clamp, described chi body is provided with kidney slot along its length, described kidney slot is embedded with two focal axis, described focal axis bottom is provided with nut, top is provided with sheave, the centre of described chi body is provided with reel, on described reel, be wound around the flexible cord of two equal length, one flexible cord is walked around the wire clamp that sheave described in connects described chi band one end, another flexible cord is walked around the wire clamp that sheave described in another connects the described chi band other end.
2. hyperbola plotter according to claim 1, is characterized in that: described focal axis, sheave, reel adopt plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042959.7U CN203697784U (en) | 2014-01-23 | 2014-01-23 | Hyperbola plotting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042959.7U CN203697784U (en) | 2014-01-23 | 2014-01-23 | Hyperbola plotting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203697784U true CN203697784U (en) | 2014-07-09 |
Family
ID=51048274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420042959.7U Expired - Fee Related CN203697784U (en) | 2014-01-23 | 2014-01-23 | Hyperbola plotting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203697784U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364260A (en) * | 2017-07-20 | 2017-11-21 | 合肥顺顺信息咨询有限公司 | One kind makees hyp tool gauge |
| CN108248255A (en) * | 2018-01-29 | 2018-07-06 | 合肥托卡拉图科技有限公司 | One kind is used to precisely make hyp tool gauge |
-
2014
- 2014-01-23 CN CN201420042959.7U patent/CN203697784U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364260A (en) * | 2017-07-20 | 2017-11-21 | 合肥顺顺信息咨询有限公司 | One kind makees hyp tool gauge |
| CN108248255A (en) * | 2018-01-29 | 2018-07-06 | 合肥托卡拉图科技有限公司 | One kind is used to precisely make hyp tool gauge |
| CN108248255B (en) * | 2018-01-29 | 2019-12-06 | 浙江苏明阀门有限公司 | tool gauge for accurately manufacturing hyperbola |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20150123 |
|
| EXPY | Termination of patent right or utility model |