CN104401155A - Conic curve drawing tool - Google Patents
Conic curve drawing tool Download PDFInfo
- Publication number
- CN104401155A CN104401155A CN201410688851.XA CN201410688851A CN104401155A CN 104401155 A CN104401155 A CN 104401155A CN 201410688851 A CN201410688851 A CN 201410688851A CN 104401155 A CN104401155 A CN 104401155A
- Authority
- CN
- China
- Prior art keywords
- drawing tool
- conic section
- ruler body
- axle sleeve
- section drawing
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
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- Lenses (AREA)
Abstract
The invention discloses a conic curve drawing tool. The conic curve drawing tool comprises a ruler body and a movable shaft sleeve, two vertically arranged slender rods are arranged at the middle section of the ruler body, the slender rods are inserted in the movable shaft sleeve, the movable shaft sleeve moves along the slender rods, two movable permanent seats are arranged in the ruler body, two movable permanent seats are arranged in the movable shaft sleeve, and two ends of a slender rope are fixed at the permanent seats and pass through an attaching lug of a chalk rack. By means of the conic curve drawing tool, students can more intuitively feel the features of a conic curve, the drawn graphs are more standard, and moreover, a teacher feels convenient to draw a graph, and a standard curve graph can be drawn quickly. The conic curve drawing tool is simple in structure, easy to process, practical, and easy and convenient to use.
Description
Technical field
The present invention relates to teaching tools field, specifically a kind of conic section drawing tool.
Background technology
Conic section drawing tool common configuration common above market is complicated, and complicated operation, a people has been difficult to mapping, intuitively can not reflect mapping principle.Conic section drawing tool needs the technique of painting requirement simultaneously meeting three kinds of figure lines; Needing during mapping can according to the data point reuse mapping size of oneself; Parabola only has a focus to maintain static; Hyperbola, parabola can infinitely extend; The oval distance sum to bifocal is constant.
Summary of the invention
In order to solve the above-mentioned technical problem existed in prior art, the invention provides a kind of conic section drawing tool, comprise ruler body and mobile axle sleeve, described ruler body stage casing has vertically disposed two thin bars, and thin bar is inserted in mobile axle sleeve, and mobile axle sleeve moves along thin bar, ruler body interior is provided with two moveable holders, also be provided with two moveable holders in mobile axle sleeve, holder is fixed at the two ends of cord, and passes the attaching lug of chalk frame.
Further, described mobile axle sleeve is by manual certain position being fixed on thin bar of screw.
Further, chalk is fixed on chalk frame.
Further, during apparatus for drawing parabolic line, can change the insertion degree of thin bar to control focal length, screw can play fixation.
Further, described ruler body is marked with size, so that draw conic section adjusting focal length.
Further, described holder is arranged on the straight line at focus place, is also the moveable bar of focus.
Conic section drawing tool of the present invention can allow student experience the feature of conic section more intuitively, makes the figure more standard of working it out, and facilitates teacher's mapping, can make the curve map of standard very rapidly.Structure is simple, is easy to processing, practical simplicity.
Accompanying drawing explanation
Fig. 1 is conic section drawing tool structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, conic section drawing tool of the present invention, comprise ruler body 1 and mobile axle sleeve 2, ruler body 1 stage casing has vertically disposed two thin bars 3, and thin bar 3 is inserted in mobile axle sleeve 2, and mobile axle sleeve 2 can move along thin bar 3, ruler body 1 inside is provided with two moveable holders 4, also be provided with two moveable holders 4 in mobile axle sleeve 2, holder 4 is fixed at the two ends of cord 5, and passes the attaching lug 8 of chalk frame 6.Mobile axle sleeve 2 is by manual certain position being fixed on thin bar 3 of screw 7.Chalk is fixed on chalk frame 6.
When conic section drawing tool of the present invention uses, cord 5 has pliability, and some when can meet mapping on curve is constantly changed to the distance of focus; Can change the insertion degree of thin bar 3 during apparatus for drawing parabolic line to control focal length, screw 7 can play fixation; Ruler body 1 is marked with size, so that draw conic section adjusting focal length; Holder 4 is for one end of fixed-focus and static line; Chalk frame 6 for fixing chalk, cord 5 through attaching lug 8, as on conic section a bit; Holder 4 is arranged on the straight line at focus place, is also the moveable bar of focus.
Claims (6)
1. a conic section drawing tool, comprise ruler body (1) and mobile axle sleeve (2), it is characterized in that: described ruler body (1) stage casing has vertically disposed two thin bars (3), thin bar (3) is inserted in mobile axle sleeve (2), mobile axle sleeve (2) is mobile along thin bar (3), ruler body (1) inside is provided with two moveable holders (4), also two moveable holders (4) are provided with in mobile axle sleeve (2), holder (4) is fixed at the two ends of cord (5), and passes the attaching lug (8) of chalk frame (6).
2. conic section drawing tool as claimed in claim 1, is characterized in that: described mobile axle sleeve (2) is by manual certain position being fixed on thin bar (3) of screw (7).
3. conic section drawing tool as claimed in claim 1, is characterized in that: chalk is fixed on chalk frame (6).
4. conic section drawing tool as claimed in claim 1, it is characterized in that: during apparatus for drawing parabolic line, can change the insertion degree of thin bar (3) to control focal length, screw (7) can play fixation.
5. conic section drawing tool as claimed in claim 1, is characterized in that: described ruler body (1) is marked with size, so that draw conic section adjusting focal length.
6. conic section drawing tool as claimed in claim 1, it is characterized in that: described holder (4) is arranged on the straight line at focus place, is also the moveable bar of focus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688851.XA CN104401155A (en) | 2014-11-26 | 2014-11-26 | Conic curve drawing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688851.XA CN104401155A (en) | 2014-11-26 | 2014-11-26 | Conic curve drawing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104401155A true CN104401155A (en) | 2015-03-11 |
Family
ID=52638849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410688851.XA Pending CN104401155A (en) | 2014-11-26 | 2014-11-26 | Conic curve drawing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104401155A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1511156A1 (en) * | 1988-01-04 | 1989-09-30 | Криворожский горнорудный институт | Instrument for drawing conic sections |
| CN2048429U (en) * | 1989-05-30 | 1989-11-29 | 邵正祥 | Ellipse compass for teaching |
| CN2112514U (en) * | 1991-10-31 | 1992-08-12 | 吉林省油田管理局新立采油厂 | Multifunctional stretchable drawing device |
| CN2145709Y (en) * | 1992-08-04 | 1993-11-10 | 寇世银 | Combined conical curve compasses |
| CN2241065Y (en) * | 1995-08-26 | 1996-11-27 | 杨先端 | Multifunctional mapping instrument |
| CN202123849U (en) * | 2011-06-16 | 2012-01-25 | 万龙兰 | Multifunctional conic section plotter for teaching |
| CN203210945U (en) * | 2013-04-29 | 2013-09-25 | 孙丽雅 | Positioning ruler facilitating construction budget |
| CN203438725U (en) * | 2013-07-30 | 2014-02-19 | 陈龙 | Curve plotter |
| CN203666192U (en) * | 2013-12-27 | 2014-06-25 | 铁岭师范高等专科学校 | Parabola drawing tool |
| BR102012030721A2 (en) * | 2012-12-03 | 2014-09-09 | Inst Fed De Educacao Ciencia E Tecnologia De Minas Gerais | CONICAL DRAWING TOOLS AND USE PROCESS |
| CN204322845U (en) * | 2014-11-26 | 2015-05-13 | 浙江海洋学院 | A kind of conic section drawing tool |
-
2014
- 2014-11-26 CN CN201410688851.XA patent/CN104401155A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1511156A1 (en) * | 1988-01-04 | 1989-09-30 | Криворожский горнорудный институт | Instrument for drawing conic sections |
| CN2048429U (en) * | 1989-05-30 | 1989-11-29 | 邵正祥 | Ellipse compass for teaching |
| CN2112514U (en) * | 1991-10-31 | 1992-08-12 | 吉林省油田管理局新立采油厂 | Multifunctional stretchable drawing device |
| CN2145709Y (en) * | 1992-08-04 | 1993-11-10 | 寇世银 | Combined conical curve compasses |
| CN2241065Y (en) * | 1995-08-26 | 1996-11-27 | 杨先端 | Multifunctional mapping instrument |
| CN202123849U (en) * | 2011-06-16 | 2012-01-25 | 万龙兰 | Multifunctional conic section plotter for teaching |
| BR102012030721A2 (en) * | 2012-12-03 | 2014-09-09 | Inst Fed De Educacao Ciencia E Tecnologia De Minas Gerais | CONICAL DRAWING TOOLS AND USE PROCESS |
| CN203210945U (en) * | 2013-04-29 | 2013-09-25 | 孙丽雅 | Positioning ruler facilitating construction budget |
| CN203438725U (en) * | 2013-07-30 | 2014-02-19 | 陈龙 | Curve plotter |
| CN203666192U (en) * | 2013-12-27 | 2014-06-25 | 铁岭师范高等专科学校 | Parabola drawing tool |
| CN204322845U (en) * | 2014-11-26 | 2015-05-13 | 浙江海洋学院 | A kind of conic section drawing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |