CN203721087U - Conic curve demonstration device - Google Patents
Conic curve demonstration device Download PDFInfo
- Publication number
- CN203721087U CN203721087U CN201420007993.0U CN201420007993U CN203721087U CN 203721087 U CN203721087 U CN 203721087U CN 201420007993 U CN201420007993 U CN 201420007993U CN 203721087 U CN203721087 U CN 203721087U
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- CN
- China
- Prior art keywords
- conic
- shells
- box body
- light source
- casing
- 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 relates to a conic curve demonstration device. The conic curve demonstration device comprises a box body, conic shells, a light source and a handheld support, wherein two conic shells exist; the tops of the two conic shells are connected with each other oppositely through the handheld support, and then, the two conic shells are arranged inside the box body; the two conic shells are transparent shells and are filled with water; a plurality of fluorescent particles float on the surface of the water; an opening is formed at the top surface of the box body, and the other surfaces of the box body are sealed; and the fixed light source is arranged on the inner wall of the box body. According to the conic curve demonstration device of the utility model, the tops of the two conic shells are connected with each other oppositely through the handheld support, and then, the two conic shells are arranged inside the box body. When demonstration is performed, the handheld support is rotated, and the light source in the box body directly irradiates on the conic shells, and various formation processes of conic curves can be displayed according to the distribution of the fluorescent particles in the conic shells, and therefore, students can be assisted to have more intuitive understanding about the conic curves. The conic curve demonstration device is advantageous in reasonable structure design and simple and convenient operation.
Description
Technical field:
The utility model relates to a kind of teaching and experimental demonstration utensil, relates in particular a kind of conic section demonstrating device.
Background technology:
Conic section comprises circle, ellipse, hyperbolic curve and para-curve, conic section is one of important topic of Study on Geometry always, also be one of Focal point and difficult point in school mathematics teaching, because the formation of conic section is more abstract, simple dependence teacher term is said and is stated, and student is difficult to that conic section is had to understanding and deep understanding intuitively, and this knowledge point is difficult to grasp, both expend energy on and the time, do not have again the teaching efficiency of expection.
Utility model content:
The purpose of this utility model is for the deficiencies in the prior art part, a kind of conic section demonstrating device is provided, utilize two cone shells and fluorescent grain, irradiate by light source, the various forming processes that directly show conic section on two cone shells, contribute to student to have more intuitive awareness and understanding to conic section.
Technology solution of the present utility model is as follows:
A kind of conic section demonstrating device, comprises casing, cone shell, light source and hand-held support, it is characterized in that: described cone shell is two, and the top of two cone shells is opposed and linked together and be positioned in casing by hand-held support; Described two cone shells are transparent shell, and water is housed in cone shell, and floating on the water surface have some fluorescent grains; Described casing is open top, the structure of all the other each face closures, and cabinet wall is provided with fixed light source.
As improvement, the top of two cone shells is fixed in one end of described hand-held support, and the other end stretches out casing outside and is provided with turning handle.
The beneficial effects of the utility model are:
The utility model opposes the top of two cone shells to link together and be positioned in casing by hand-held support, when demonstration, rotate hand-held support, light source in casing shines directly on cone shell, can show according to the distribution of fluorescent grain in cone shell the various forming processes of conic section, contribute to student to have more intuitive awareness and understanding to conic section, reasonable in design, simple to operation.
Brief description of the drawings:
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is structural representation of the present utility model.
Embodiment:
The following stated is only preferred embodiment of the present utility model, not scope of the present utility model is limited.
Embodiment, with reference to accompanying drawing 1, a kind of conic section demonstrating device, comprise casing 1, cone shell 2, light source 3 and hand-held support 4, described cone shell 2 is two, the top of two cone shells 2 is linked together and is positioned in casing 1 by hand-held support 4 opposition, and the top of two cone shells 2 is fixed in one end of hand-held support 4, and the other end stretches out casing 1 outside and is provided with turning handle 41; Described two cone shells 2 are transparent shell, in cone shell 2, water are housed, and floating on the water surface have some fluorescent grains 21; Described casing 1 is open top, the structure of all the other each face closures, casing 1 inwall is provided with fixed light source 3, when demonstration, hold turning handle 41 and rotate hand-held support 4 along a direction, hand-held support 4 drives two cone shells 2 to rotate in the same direction, open the light source 3 in casing 1, light source 3 direct irradiations are on two cone shells 2, can be according to the distribution situation of the fluorescent grain 21 in cone shell 2, the various forming processes of reflection conic section directly perceived, being beneficial to student has more intuitive understanding and understanding to conic section.
Claims (2)
1. a conic section demonstrating device, comprise casing (1), cone shell (2), light source (3) and hand-held support (4), it is characterized in that: described cone shell (2) is two, the top of two cone shells (2) is linked together and is positioned in casing (1) by hand-held support (4) opposition; Described two cone shells (2) are transparent shell, and cone shell is equipped with water in (2), and floating on the water surface have some fluorescent grains (21); Described casing (1) is open top, the structure of all the other each face closures, and casing (1) inwall is provided with fixed light source (3).
2. a kind of conic section demonstrating device according to claim 1, it is characterized in that: the top of two cone shells (2) is fixed in one end of described hand-held support (4), the other end stretches out casing (1) outside and is provided with turning handle (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420007993.0U CN203721087U (en) | 2014-01-06 | 2014-01-06 | Conic curve demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420007993.0U CN203721087U (en) | 2014-01-06 | 2014-01-06 | Conic curve demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203721087U true CN203721087U (en) | 2014-07-16 |
Family
ID=51160225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420007993.0U Expired - Fee Related CN203721087U (en) | 2014-01-06 | 2014-01-06 | Conic curve demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203721087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128233A (en) * | 2016-09-07 | 2016-11-16 | 南京工业职业技术学院 | A kind of device of trichroism light compositing method demonstration conic section |
-
2014
- 2014-01-06 CN CN201420007993.0U patent/CN203721087U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128233A (en) * | 2016-09-07 | 2016-11-16 | 南京工业职业技术学院 | A kind of device of trichroism light compositing method demonstration conic section |
| CN106128233B (en) * | 2016-09-07 | 2018-04-06 | 南京工业职业技术学院 | A kind of device of three coloured light synthetic method demonstration conic section |
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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: 20140716 Termination date: 20150106 |
|
| EXPY | Termination of patent right or utility model |