CN203415137U - Demonstration teaching aid for surfaces of revolution in higher mathematics - Google Patents
Demonstration teaching aid for surfaces of revolution in higher mathematics Download PDFInfo
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- CN203415137U CN203415137U CN201320563260.0U CN201320563260U CN203415137U CN 203415137 U CN203415137 U CN 203415137U CN 201320563260 U CN201320563260 U CN 201320563260U CN 203415137 U CN203415137 U CN 203415137U
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- rotating shaft
- transparent panel
- teaching aid
- battery
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Abstract
The utility model discloses a demonstration teaching aid for surfaces of revolution in higher mathematics, and belongs to the field of teaching tools. The demonstration teaching aid is used for solving the problem that a currently used demonstration teaching aid for surfaces of revolution has difficulty in keeping a generatrix as a plane curve and keeping the generatrix and an axis on the same plane and thus the demonstration effect is influenced. The demonstration teaching aid comprises a base, a rotating shaft, a transparent board, annular magnets, light emitting diodes and a battery, wherein the rotating shaft is vertical to the upper surface of the base and is rotatably connected with the base, the transparent board is fixedly connected to one side of the rotating shaft, a plurality of air holes are reserved in the transparent board, the diameter of each air hole is smaller than one half of that of the annular magnet, a plurality of annular magnets are arranged, the plurality of annular magnets are sucked on the front and rear surfaces of the transparent board through a suction force in a two-to-two correspondent manner, the light emitting diode is arranged at the middle of each annular magnet on the same surface of the transparent board, all light emitting diodes are connected with the battery through wires and are supplied with power by the battery, and the battery is arranged on the other side of the rotating shaft and is connected with the rotating shaft. The demonstration teaching aid disclosed by the utility model is used for demonstrating the surfaces of revolution.
Description
Technical field:
The utility model belongs to educational aid field, is specifically related to a kind of higher mathematics surface of revolution demonstration teaching aid.
Background technology:
Surface of revolution is the formed curved surface that rotates a circle of the straight line in its plane with a plane curve, the surface of revolution demonstration teaching aid using at present all adopts the flexible materials such as iron wire to do bus, be difficult for making bus to keep plane curve, also be difficult for making bus and axle to remain on same plane, impact demonstration effect.
Utility model content:
The purpose of this utility model is to be difficult for making bus to keep plane curve in order to solve the surface of revolution demonstration teaching aid of current use, also be difficult for making bus and axle to remain on same plane, the problem of impact demonstration effect, provides a kind of higher mathematics surface of revolution demonstration teaching aid, and its technical scheme is as follows:
A surface of revolution demonstration teaching aid, it comprises base, rotating shaft, transparent panel, ring-shaped magnet, light emitting diode and battery, the vertical setting of upper surface of described rotating shaft and base is also rotationally connected with it, described transparent panel is fixedly connected on a side of rotating shaft, transparent panel is longitudinally perpendicular to the upper surface of base, transparent panel is laterally perpendicular to the tangent line with rotating shaft intersection, on transparent panel, leave a plurality of wind hole, the diameter in wind hole be less than described ring-shaped magnet diameter 1/2nd, described ring-shaped magnet has a plurality of, a plurality of ring-shaped magnets are inhaled two sides before and after transparent panel with magnetic force between two relatively, in the middle of each ring-shaped magnet of transparent panel the same face, be provided with light emitting diode, all light emitting diodes are all connected with battery by wire and are battery-powered, battery is arranged on the opposite side of rotating shaft and is connected with rotating shaft.
The beneficial effects of the utility model are: make bus remain plane curve, bus and axle remain on same plane.。
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
Embodiment:
With reference to Fig. 1, a kind of higher mathematics surface of revolution demonstration teaching aid, it comprises base 1, rotating shaft 2, transparent panel 3, ring-shaped magnet 4, light emitting diode 5 and battery 6, the vertical setting of upper surface of described rotating shaft 2 and base 1 is also rotationally connected with it, described transparent panel 3 is fixedly connected on a side of rotating shaft 2, the longitudinal upper surface perpendicular to base 1 of transparent panel 3, transparent panel 3 is laterally perpendicular to the tangent line with rotating shaft 2 intersections, on transparent panel 3, leave a plurality of wind hole 3-1, the diameter of wind hole 3-1 be less than described ring-shaped magnet 4 diameter 1/2nd, described ring-shaped magnet 4 has a plurality of, a plurality of ring-shaped magnets 4 are inhaled in transparent panel 3 two sides, front and back with magnetic force between two relatively, in the middle of each ring-shaped magnet 4 of transparent panel 3 the same faces, be provided with light emitting diode 5, all light emitting diodes 5 are all connected with battery 6 and are powered by battery 6 by wire 5-1, battery 6 is arranged on the opposite side of rotating shaft 2 and is connected with rotating shaft 2.
Preferably, described transparent panel 3 adopts thickness to be less than the glass of 1.5mm.
Preferably, in rotating shaft 2, near the upper surface place of base 1, be fixedly connected with a cord 7, the length of cord 7 is greater than five times of circumferential length of rotating shaft 2.
The using method of utility model and principle: all light emitting diodes 5 are arranged in to curve, rotating shaft 2, during rotating shaft 2, cord 7 can be twined in rotating shaft 2 to drawing-down rope 7 again, make rotating shaft 2 rotations, drive transparent panel 3 and be arranged in light emitting diode 5 rotations of curve, the shadow of v light emitting diode 5 forms take the surface of revolution that rotating shaft 2 is axle; Windage when wind hole 3-1 can reduce transparent panel 3 rotation.
Claims (3)
1. a higher mathematics surface of revolution demonstration teaching aid, is characterized in that it comprises base (1), rotating shaft (2), transparent panel (3), ring-shaped magnet (4), light emitting diode (5) and battery (6), the vertical setting of upper surface of described rotating shaft (2) and base (1) is also rotationally connected with it, described transparent panel (3) is fixedly connected on a side of rotating shaft (2), transparent panel (3) is longitudinally perpendicular to the upper surface of base (1), transparent panel (3) is laterally perpendicular to the tangent line with rotating shaft (2) intersection, on transparent panel (3), leave a plurality of wind hole (3-1), the diameter in wind hole (3-1) be less than described ring-shaped magnet (4) diameter 1/2nd, described ring-shaped magnet (4) has a plurality of, a plurality of ring-shaped magnets (4) are inhaled two sides before and after transparent panel (3) with magnetic force between two relatively, in the middle of each ring-shaped magnet (4) of transparent panel (3) the same face, be provided with light emitting diode (5), all light emitting diodes (5) are all connected with battery (6) by wire (5-1) and are powered by battery (6), battery (6) is arranged on the opposite side of rotating shaft (2) and is connected with rotating shaft (2).
2. a kind of higher mathematics surface of revolution demonstration teaching aid as claimed in claim 1, is characterized in that described transparent panel (3) adopts thickness to be less than the glass of 1.5mm.
3. a kind of higher mathematics surface of revolution demonstration teaching aid as claimed in claim 1, it is characterized in that being fixedly connected with a cord (7) at the upper upper surface place near base (1) of rotating shaft (2), the length of cord (7) is greater than five times of circumferential length of rotating shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320563260.0U CN203415137U (en) | 2013-09-11 | 2013-09-11 | Demonstration teaching aid for surfaces of revolution in higher mathematics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320563260.0U CN203415137U (en) | 2013-09-11 | 2013-09-11 | Demonstration teaching aid for surfaces of revolution in higher mathematics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203415137U true CN203415137U (en) | 2014-01-29 |
Family
ID=49978013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320563260.0U Expired - Fee Related CN203415137U (en) | 2013-09-11 | 2013-09-11 | Demonstration teaching aid for surfaces of revolution in higher mathematics |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203415137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106991877A (en) * | 2017-05-26 | 2017-07-28 | 亳州学院 | A kind of mathematical modeling teaching aid |
-
2013
- 2013-09-11 CN CN201320563260.0U patent/CN203415137U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106991877A (en) * | 2017-05-26 | 2017-07-28 | 亳州学院 | A kind of mathematical modeling teaching aid |
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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: 20140129 Termination date: 20150911 |
|
| EXPY | Termination of patent right or utility model |