CN203706508U - Projection relation demonstration device for senior high school mathematics - Google Patents
Projection relation demonstration device for senior high school mathematics Download PDFInfo
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- CN203706508U CN203706508U CN201420067493.6U CN201420067493U CN203706508U CN 203706508 U CN203706508 U CN 203706508U CN 201420067493 U CN201420067493 U CN 201420067493U CN 203706508 U CN203706508 U CN 203706508U
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- support bar
- bar group
- rod assembly
- support rod
- high school
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Abstract
The utility model discloses a projection relation demonstration device for senior high school mathematics. The device comprises a frame, a support rod assembly and LED tubes. The support rod assembly is disposed above the frame and comprises a first support rod assembly and a second support rod assembly. The first support rod assembly and the second support rod assembly comprise a plurality of parallel support rods. The first support rod assembly is disposed on and connected to the second support rod assembly through a hinge base. The bottom part of the frame is provided with a projection plate. The support rods are hollowed. The LED tubes are disposed inside the support rods. The device changes irradiation direction and positions of LED tubes having various colors and disposed in various planes of the space, so as to rapidly and accurately obtain projection of a point, a line, a plane and a conventional space pattern, and to make teaching more visual.
Description
Technical field
The utility model relates to a kind of teaching aid, refers more particularly to a kind of high school mathematics projection relation demonstration device.
Background technology
On mathematics, space geometry is traditional title of three dimensional euclidean space geometry.Space geometry generally, as the follow-up course of plane geometry, is used widely in the fields such as machinery and building.Generally, mathematics teacher gives lessons in process space geometry, particularly in the part such as " straight line and plane ", " polyhedral angle and polyhedron ", because of key concept and content abstract, student lacks space, be difficult to understand mutual alignment, the space relation between planimetric map center line and line, line and face and plane and the plane that in book, (or on blackboard) drawn, when explanation, need to demonstrate material object, at present, all in most cases by explanation, often be difficult to the teaching efficiency that reaches good, because there is no special displaying teaching aid, therefore become the difficult point of teaching over the years.Particularly in how much of mathematical spaces and engineering drawing teaching, sometimes need to student explain projection relation, and existing space geometry demonstrating model cannot specifically be demonstrated projection relation, simultaneously, how a lot of classmates are to know figure and draw and be confused about always, cause student cannot understand the projection relation of space geometry, teaching efficiency is poor.
Utility model content
The purpose of this utility model is just to provide in order to address the above problem a kind of high school mathematics projection relation demonstration device.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises framework, support bar group and LED fluorescent tube, support bar group is arranged on the top of described framework, described support bar group comprises the first support bar group and the second support bar group, described the first support bar group, described the second support bar group are made up of many parallel support bars, described the first support bar group is arranged in described the second support bar group and connects by hinged seat, the bottom of described framework is provided with projection plate, described support bar is hollow stem, is provided with described LED fluorescent tube in described support bar.
Particularly, adjacent described LED fluorescent tube color difference.
Further, on described support bar, be provided with the power supply control knob of corresponding LED fluorescent tube.
The beneficial effects of the utility model are:
The utility model can be arranged on by change direction of illumination and the position of the versicolor LED fluorescent tube in Different Plane space, can directly obtain fast and accurately the projection of point, line, surface and conventional space diagram, make to give lessons more vivid, make student can understand intuitively the projection relation of space geometry, teaching efficiency is good, be conducive to cultivate student's logical thinking ability and space imagination, simple in structure, be convenient to be widely used.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of support bar described in the utility model.
In figure: 1-support bar, 2-hinged seat, 3-framework, 4-projection plate, 5-LED fluorescent tube, 6-power supply control knob.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As illustrated in fig. 1 and 2, the utility model comprises framework 3, support bar group and LED fluorescent tube 5, support bar group is arranged on the top of framework 3, support bar group comprises the first support bar group and the second support bar group, the first support bar group, the second support bar group are made up of many parallel support bars 1, and the first support bar group is arranged in the second support bar group and by hinged seat 2 and connects, and the bottom of framework 3 is provided with projection plate 4, support bar 1 is hollow stem, is provided with LED fluorescent tube 5 in support bar 1.
Adjacent LED fluorescent tube 5 color differences, facilitate student to observe the position relationship on projection plate 4, are provided with the power supply control knob 6 of corresponding LED fluorescent tube 5 on support bar 1, can show the projection of the lines position relationship that many support bars 1 react.
Teacher can autonomous the first support bar group and the hinge angle of the second support bar group, on projection plate, can projection go out different projection relations, by the different view of direct observation, make student can understand intuitively the projection relation of space geometry, teaching efficiency is good, be conducive to cultivate student's logical thinking ability and space imagination, simple in structure, be convenient to be widely used.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all any modifications 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 (3)
1. a high school mathematics projection relation demonstration device, it is characterized in that: comprise framework, support bar group and LED fluorescent tube, described support bar group is arranged on the top of described framework, described support bar group comprises the first support bar group and the second support bar group, described the first support bar group, described the second support bar group are made up of many parallel support bars, described the first support bar group is arranged in described the second support bar group and connects by hinged seat, the bottom of described framework is provided with projection plate, described support bar is hollow stem, is provided with described LED fluorescent tube in described support bar.
2. a kind of high school mathematics projection relation demonstration device according to claim 1, is characterized in that: adjacent described LED fluorescent tube color difference.
3. a kind of high school mathematics projection relation demonstration device according to claim 1, is characterized in that: the power supply control knob that is provided with corresponding LED fluorescent tube on described support bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067493.6U CN203706508U (en) | 2014-02-10 | 2014-02-10 | Projection relation demonstration device for senior high school mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420067493.6U CN203706508U (en) | 2014-02-10 | 2014-02-10 | Projection relation demonstration device for senior high school mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203706508U true CN203706508U (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420067493.6U Expired - Fee Related CN203706508U (en) | 2014-02-10 | 2014-02-10 | Projection relation demonstration device for senior high school mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203706508U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869498A (en) * | 2016-06-08 | 2016-08-17 | 沈阳工业大学 | Flexible traction angle branching type linkage linear three-plane projection demonstration board |
| CN105894937A (en) * | 2016-06-08 | 2016-08-24 | 沈阳工业大学 | Two-side projection demonstration board for flexible-traction straight lines |
| CN106448427A (en) * | 2016-12-11 | 2017-02-22 | 沈阳工业大学 | Linear three-plane projection demonstration plate with space model and three-projection linkage |
| CN106448418A (en) * | 2016-12-11 | 2017-02-22 | 沈阳工业大学 | Linear three-plane projection demonstration plate with space model angular bisector type linkage |
| CN106485988A (en) * | 2016-12-11 | 2017-03-08 | 沈阳工业大学 | The straight line three-plane projection demonstration board of the drawing linkage of carrying space model spool |
| CN106530932A (en) * | 2016-12-11 | 2017-03-22 | 沈阳工业大学 | Two-side projection demonstration board with space model for flexile-traction straight lines |
| CN106781968A (en) * | 2016-12-11 | 2017-05-31 | 沈阳工业大学 | The straight line three-plane projection demonstration board of carrying space model scale positioning |
-
2014
- 2014-02-10 CN CN201420067493.6U patent/CN203706508U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105869498A (en) * | 2016-06-08 | 2016-08-17 | 沈阳工业大学 | Flexible traction angle branching type linkage linear three-plane projection demonstration board |
| CN105894937A (en) * | 2016-06-08 | 2016-08-24 | 沈阳工业大学 | Two-side projection demonstration board for flexible-traction straight lines |
| CN105869498B (en) * | 2016-06-08 | 2018-08-21 | 沈阳工业大学 | The straight line three-plane projection demonstration board of flexible drawing angle line-disparting type linkage |
| CN105894937B (en) * | 2016-06-08 | 2018-08-21 | 沈阳工业大学 | Flexible drawing straight line two*.plane projection demonstration board |
| CN106781968A (en) * | 2016-12-11 | 2017-05-31 | 沈阳工业大学 | The straight line three-plane projection demonstration board of carrying space model scale positioning |
| CN106530932A (en) * | 2016-12-11 | 2017-03-22 | 沈阳工业大学 | Two-side projection demonstration board with space model for flexile-traction straight lines |
| CN106485988A (en) * | 2016-12-11 | 2017-03-08 | 沈阳工业大学 | The straight line three-plane projection demonstration board of the drawing linkage of carrying space model spool |
| CN106448418A (en) * | 2016-12-11 | 2017-02-22 | 沈阳工业大学 | Linear three-plane projection demonstration plate with space model angular bisector type linkage |
| CN106448427A (en) * | 2016-12-11 | 2017-02-22 | 沈阳工业大学 | Linear three-plane projection demonstration plate with space model and three-projection linkage |
| CN106485988B (en) * | 2016-12-11 | 2018-11-06 | 沈阳工业大学 | The straight line three-plane projection demonstration board of the drawing linkage of carrying space model spool |
| CN106530932B (en) * | 2016-12-11 | 2018-11-06 | 沈阳工业大学 | The flexible drawing straight line two*.plane projection demonstration board of carrying space model |
| CN106781968B (en) * | 2016-12-11 | 2018-11-06 | 沈阳工业大学 | The straight line three-plane projection demonstration board of carrying space model scale positioning |
| CN106448418B (en) * | 2016-12-11 | 2018-11-06 | 沈阳工业大学 | The straight line three-plane projection demonstration board of carrying space model angle line-disparting type linkage |
| CN106448427B (en) * | 2016-12-11 | 2018-11-09 | 沈阳工业大学 | The straight line three-plane projection demonstration board of the projection linkage of carrying space model three |
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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: 20150210 |
|
| EXPY | Termination of patent right or utility model |