CN205326602U - Conic section device that charts for mathematical education - Google Patents
Conic section device that charts for mathematical education Download PDFInfo
- Publication number
- CN205326602U CN205326602U CN201620084456.5U CN201620084456U CN205326602U CN 205326602 U CN205326602 U CN 205326602U CN 201620084456 U CN201620084456 U CN 201620084456U CN 205326602 U CN205326602 U CN 205326602U
- Authority
- CN
- China
- Prior art keywords
- locking device
- tightrope
- conic section
- mathematical education
- mobile bar
- 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
The utility model discloses a conic section device that charts for mathematical education, including dead lever, carriage release lever and chalk cover, the one end of dead lever is equipped with holds the chamber, the carriage release lever is inserted to establish and is being held the intracavity, be equipped with horizontally bar opening on the carriage release lever, the carriage release lever is through passing the locking of bar open -ended fastener on the dead lever, the fastener include the bolt and with the nut of bolt adaptation, one of the one end of dead lever and carriage release lever is served and is equipped with a locking device, the 2nd locking device respectively, be equipped with the tightrope between a locking device, the 2nd locking device, be equipped with the wire casing on the outer wall of chalk cover, the tightrope joint is in the wire casing. The utility model discloses simple structure, the cost of manufacture is low, can draw the oval conic section and the elliptical shape standard of different parameters, improves mathematics teacher's the efficiency of giving lessons greatly, and the practicality is strong.
Description
Technical field
This utility model relates to teaching aid technical field, particularly relates to a kind of mathematical education conic section mapping arrangements。
Background technology
Before more than 2000 year, Ancient Greek Mathematics man begins one's study conic section at first, and obtains substantial amounts of achievement。Ancient Greek Mathematics man Apollo Nietzsche studies this several curves by the method for plane cutting circular cone。Removing truncated cone by the plane being perpendicular to the axis of cone, what obtain is round；Plane is tilted gradually, obtains ellipse；When planar tilt to " with and only with " bus of circular cone parallel time, obtain parabola；With the planar interception of the axle of parallel circular cone, can obtain hyp;Symmetrical circular cone is done with conical tip, then can obtain hyperbola, often need to draw conic section in teaching and drawing, and teacher needs to carry out the demonstration of conic section on blackboard or blank often giving lessons, particularly oval demonstration, the two ends of a piece rope are generally fixed on blackboard or blank by teacher, again chalk or white board marker are conflicted in the side of rope and tightened this rope, finally hold chalk or white board marker carries out circumference mapping, use this mapping mode often and cause mapping unsuccessfully owing to the fixing point skew of rope makes the center of conic section change；Or owing to rope degree of tautness difference causes that the nib of chalk or white board marker is towards occurring skew to make the shape of conic section lack of standardization, aesthetic feeling is lost in mapping。
Summary of the invention
The purpose of this utility model is to solve the shortcoming existed in prior art, and a kind of mathematical education conic section mapping arrangements proposed。
To achieve these goals, this utility model adopts the technical scheme that
A kind of mathematical education conic section mapping arrangements, including fixing bar, mobile bar and chalk sleeve, one end of described fixing bar is provided with accommodation chamber, described mobile bar is plugged in accommodation intracavity, described mobile bar is provided with the strip gab of level, described mobile bar is by being locked on fixing bar through the securing member of strip gab, described securing member includes bolt and the nut adaptive with bolt, one end of one end of described fixing bar and mobile bar is respectively equipped with the first locking device, second locking device, described first locking device, it is provided with tightrope between second locking device, the outer wall of described chalk sleeve is provided with wire casing, described tightrope is connected in wire casing。
Preferably, described first locking device, the second locking device all include mounting seat and compressing member, described mounting seat is provided with mounting groove, and the inwall of described mounting groove both sides is provided with the cord hole allowing tightrope pass through, the inwall of described mounting groove and the outer wall of compressing member and is provided with supporting screw thread。
Preferably, described fixing bar is provided with fixed handle。
Preferably, the strip gab of described mobile bar is arranged over scale。
Preferably, described tightrope is nonelastic tightrope。
In this utility model, adjust the position of mobile bar, it is locked on fixing bar by the securing member through strip gab, regulate the position of oval fixed point, first locking device, it is provided with tightrope between second locking device, by the first locking device, second locking device regulates the length of tightrope, the strip gab of mobile bar is arranged over scale, the mobile bar length from fixing bar can be measured, the outer wall of chalk sleeve is provided with wire casing, tightrope is connected in wire casing, the elliptic curve of beauty can be drawn by mobile chalk sleeve, simple in construction, cost of manufacture is low, the oval conic section of different parameters and the shape specification of ellipse can be drawn, it is greatly improved the efficiency of giving lessons of mathematics teacher, practical。
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of mathematical education conic section mapping arrangements that the utility model proposes；
Fig. 2 is the structural representation of this utility model the first locking device, the second locking device；
Fig. 3 is the structural representation that this utility model lifts firmware。
In figure: 1 fixing bar, 2 move bar, 3 chalk sleeves, 4 strip gabs, 5 securing members, 6 bolts, 7 nuts, 8 first locking devices, 9 second locking devices, 10 tightropes, 11 wire casings, 12 mounting seats, 13 compressing members, 14 fixed handles, 15 scales。
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments。
With reference to Fig. 1-3, a kind of mathematical education conic section mapping arrangements, including fixing bar 1, mobile bar 2 and chalk sleeve 3, one end of described fixing bar 1 is provided with accommodation chamber, described mobile bar 2 is plugged in accommodation intracavity, described mobile bar 2 is provided with the strip gab 4 of level, described mobile bar 2 is locked on fixing bar 1 by the securing member 5 through strip gab 4, described securing member 5 includes bolt 6 and the nut 7 with bolt 6 adaptation, one end of one end of described fixing bar 1 and mobile bar 2 is respectively equipped with the first locking device 8, second locking device 9, described first locking device 8, it is provided with tightrope 10 between second locking device 9, the outer wall of described chalk sleeve 3 is provided with wire casing 11, described tightrope 10 is positioned at the wire casing 11 of described chalk sleeve 3。
Described first locking device the 8, second locking device 9 all includes mounting seat 12 and compressing member 13, described mounting seat 12 is provided with mounting groove, the inwall of described mounting groove both sides is provided with the cord hole allowing tightrope pass through, the inwall of described mounting groove and the outer wall of compressing member 13 are provided with supporting screw thread, described fixing bar 1 is provided with fixed handle 14, the strip gab 4 of described mobile bar 2 is arranged over scale 15, and described tightrope 10 is nonelastic tightrope。
During work, the fixed handle 14 that hand-held fixing bar 1 is provided with, device is against on blackboard, adjust the position of mobile bar 2, it is locked on fixing bar 1 by the securing member 5 through strip gab 4, regulate the position of oval fixed point, first locking device 8, it is provided with tightrope between second locking device 9, first locking device 8, second locking device 9 all includes mounting seat 12 and compressing member 13, mounting seat 12 is provided with mounting groove, the inwall of mounting groove both sides is provided with the cord hole allowing tightrope 10 pass through, the inwall of mounting groove and the outer wall of compressing member 13 are provided with supporting screw thread, the length of tightrope is regulated by rotatably compressing part 13, the strip gab of mobile bar 2 is arranged over scale 15, the mobile bar 2 length from fixing bar 1 can be measured, the outer wall of chalk sleeve 3 is provided with wire casing 11, tightrope 10 is connected in wire casing 11, the elliptic curve of beauty can be drawn by mobile chalk sleeve 3, simple in construction, cost of manufacture is low, the oval conic section of different parameters and the shape specification of ellipse can be drawn, it is greatly improved the efficiency of giving lessons of mathematics teacher, practical。
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; conceive according to the technical solution of the utility model and utility model thereof and be equal to replacement or change, all should be encompassed within protection domain of the present utility model。
Claims (5)
1. a mathematical education conic section mapping arrangements, it is characterized in that, including fixing bar (1), mobile bar (2) and chalk sleeve (3), one end of described fixing bar (1) is provided with accommodation chamber, described mobile bar (2) is plugged in accommodation intracavity, described mobile bar (2) is provided with the strip gab (4) of level, described mobile bar (2) is locked on fixing bar (1) by the securing member (5) through strip gab (4), described securing member (5) includes bolt (6) and the nut (7) adaptive with bolt (6), one end of one end of described fixing bar (1) and mobile bar (2) is respectively equipped with the first locking device (8), second locking device (9), described first locking device (8), tightrope (10) it is provided with between second locking device (9), the outer wall of described chalk sleeve (3) is provided with wire casing (11), described tightrope (10) is positioned at the wire casing (11) of described chalk sleeve (3)。
2. a kind of mathematical education conic section mapping arrangements according to claim 1, it is characterized in that, described first locking device (8), the second locking device (9) all include mounting seat (12) and compressing member (13), described mounting seat (12) is provided with mounting groove, the inwall of described mounting groove both sides is provided with the cord hole allowing tightrope (10) pass through, and the outer wall of the inwall of described mounting groove and compressing member (13) is provided with supporting screw thread。
3. a kind of mathematical education conic section mapping arrangements according to claim 1, it is characterised in that described fixing bar (1) is provided with fixed handle (14)。
4. a kind of mathematical education conic section mapping arrangements according to claim 1, it is characterised in that the strip gab (4) of described mobile bar (2) is arranged over scale (15)。
5. a kind of mathematical education conic section mapping arrangements according to claim 1, it is characterised in that described tightrope (10) is nonelastic tightrope。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620084456.5U CN205326602U (en) | 2016-01-28 | 2016-01-28 | Conic section device that charts for mathematical education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620084456.5U CN205326602U (en) | 2016-01-28 | 2016-01-28 | Conic section device that charts for mathematical education |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205326602U true CN205326602U (en) | 2016-06-22 |
Family
ID=56318874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620084456.5U Expired - Fee Related CN205326602U (en) | 2016-01-28 | 2016-01-28 | Conic section device that charts for mathematical education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205326602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009787A (en) * | 2017-04-21 | 2017-08-04 | 黄士玉 | A kind of portable Multifunctional math teaching aid and its application method |
-
2016
- 2016-01-28 CN CN201620084456.5U patent/CN205326602U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009787A (en) * | 2017-04-21 | 2017-08-04 | 黄士玉 | A kind of portable Multifunctional math teaching aid and its application method |
| CN107009787B (en) * | 2017-04-21 | 2018-06-26 | 温岭市智营电子科技有限公司 | A kind of portable Multifunctional math teaching aid and its application method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20170128 |