CN204650789U - A kind of mathematical projection teaching demonstration device - Google Patents
A kind of mathematical projection teaching demonstration device Download PDFInfo
- Publication number
- CN204650789U CN204650789U CN201520361159.6U CN201520361159U CN204650789U CN 204650789 U CN204650789 U CN 204650789U CN 201520361159 U CN201520361159 U CN 201520361159U CN 204650789 U CN204650789 U CN 204650789U
- Authority
- CN
- China
- Prior art keywords
- bucket
- light source
- projection
- described observation
- rocking handle
- 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 kind of mathematical projection teaching demonstration device, comprise light source bucket and observe bucket, described light source bucket is cylinder type, described observation bucket is tapered, described observation bucket sidewall arranges protruding form, inside described light source bucket upper bottom surface, projection lamp is set, described light source bucket bottom surface and described observation bucket is suitable for reading connects together, described projection lamp connects power-supply unit, described observation bucket is made up of light-proof material, described observation bucket back cut diameter direction has two depressions, described rocking handle rides in described observation bucket two described depressions suitable for reading through described light source bucket, for hanging thing to be projected on described rocking handle.Mathematical projection teaching demonstration device can represent the problem in projection teaching visual in imagely, contributes to student and understands projection phenomenon, student is easily linked together projection and daily life, solves the On The Projection in daily life.
Description
Technical field
The utility model relates to a kind of mathematical projection teaching demonstration device.
Background technology
At mathematical projection chapters and sections, teacher just by the mathematical problem in oral account explanation projection, can not be often that student understands projection more visual in imagely.
Utility model content
The purpose of this utility model is exactly to solve the problem, and provides a kind of mathematical projection teaching demonstration device, and it has the advantage representing projection phenomenon visual in imagely.
To achieve these goals, the utility model adopts following technical scheme:
A kind of mathematical projection teaching demonstration device, comprise light source bucket and observe bucket, described light source bucket is cylinder type, described observation bucket is tapered, described light source bucket bottom surface and described observation bucket is suitable for reading connects together, inside described light source bucket upper bottom surface, projection lamp is set, described projection lamp connects power-supply unit, described observation bucket is made up of light-proof material, described observation bucket sidewall arranges protruding form, described observation bucket back cut diameter direction has two depressions, rocking handle rides in described observation bucket two described depressions suitable for reading through described light source bucket, for hanging thing to be projected on described rocking handle.
The beneficial effects of the utility model:
1. mathematical projection teaching demonstration device can represent the problem in projection teaching visual in imagely, contributes to student and understands projection phenomenon, student is easily linked together projection and daily life, solves the On The Projection in daily life.
2. cone tank is by light-proof material, forms light tight region, can get rid of the interference of other light.
3. thing to be projected can be replaced by the geometry of difformity or solid, also can, by student's designed, designed, make projection have diversity, and can mobilizing students enthusiasm, improves the initiative of student.
4. rocking handle can make thing to be projected rotate, and changes the position relationship with light source, observes the projection of different angles, deepens the understanding of student to projection.
5. observe bucket back cut diameter direction and have two depressions, when the setting of depression makes rotation rocking handle, rocking handle not easily skids off.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein, 1. light source bucket, 2. observes bucket, 3. projection lamp, 4. thing to be projected, 5. rocking handle, 6. form.
Embodiment
As shown in Figure 1, a kind of mathematical projection teaching demonstration device, comprise light source bucket 1 and observe bucket 2, described light source bucket 1 is cylinder type, described observation bucket 2 is tapered, described observation bucket 2 sidewall arranges protruding form 6, inside described light source bucket 1 upper bottom surface, projection lamp 3 is set, described light source bucket 1 bottom surface and described observation bucket 2 is suitable for reading connects together, described projection lamp 3 connects power-supply unit, described observation bucket 2 is made up of light-proof material, described observation bucket 2 back cut diameter direction has two depressions, rocking handle 5 rides in described observation bucket 2 two described depressions suitable for reading through described light source bucket 1, for hanging thing 4 to be projected on described rocking handle 5.
Using method: be fixed on the described rocking handle 5 in described light source bucket 1 by thing 4 to be projected, open projection lamp 3, shakes described rocking handle 5, while observe the projection change of described thing to be projected 4 different directions by described form 6.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (1)
1. a mathematical projection teaching demonstration device, it is characterized in that, comprise light source bucket and observe bucket, described light source bucket is cylinder type, described observation bucket is tapered, described light source bucket bottom surface and described observation bucket is suitable for reading connects together, inside described light source bucket upper bottom surface, projection lamp is set, described projection lamp connects power-supply unit, described observation bucket is made up of light-proof material, described observation bucket sidewall arranges protruding form, described observation bucket back cut diameter direction has two depressions, described rocking handle rides in described observation bucket two described depressions suitable for reading through described light source bucket, for hanging thing to be projected on described rocking handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361159.6U CN204650789U (en) | 2015-05-31 | 2015-05-31 | A kind of mathematical projection teaching demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361159.6U CN204650789U (en) | 2015-05-31 | 2015-05-31 | A kind of mathematical projection teaching demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204650789U true CN204650789U (en) | 2015-09-16 |
Family
ID=54103508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520361159.6U Expired - Fee Related CN204650789U (en) | 2015-05-31 | 2015-05-31 | A kind of mathematical projection teaching demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204650789U (en) |
-
2015
- 2015-05-31 CN CN201520361159.6U patent/CN204650789U/en not_active Expired - Fee Related
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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: 20150916 Termination date: 20160531 |