CN204117431U - The cycloid demonstration teaching aid that College Mathematics Teaching uses - Google Patents
The cycloid demonstration teaching aid that College Mathematics Teaching uses Download PDFInfo
- Publication number
- CN204117431U CN204117431U CN201420660739.0U CN201420660739U CN204117431U CN 204117431 U CN204117431 U CN 204117431U CN 201420660739 U CN201420660739 U CN 201420660739U CN 204117431 U CN204117431 U CN 204117431U
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- CN
- China
- Prior art keywords
- base plate
- rotating shaft
- drawing board
- cycloid
- pressing plate
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Abstract
The cycloid demonstration teaching aid that College Mathematics Teaching uses, belongs to educational aid field, and solve the problem not being applicable to the teaching aid that demonstration cycloid is formed at present, it comprises base plate, drawing board, rotating shaft, handle and pressing plate; Described base plate is vertical with drawing board to be arranged, the lower surface of base plate aligns with the lower surface of drawing board, the front surface of base plate is fixedly connected on the rear surface of drawing board near lower edge, and the height that drawing board is positioned at more than plate upper surface is more than or equal to the diameter of rotating shaft, and the width of drawing board is greater than the girth of rotating shaft; Described rotating shaft is arranged on base plate, and the front surface place of keeping to the side of rotating shaft is provided with multiple ball, and multiple ball equidistantly distributes, and is also provided with multiple pen plughole, in pen plughole, is provided with spring at the front surface of rotating shaft; The center, rear surface of rotating shaft is provided with handle, and handle is connected with axis of rotation; Described pressing plate is arranged on the rear side of base plate, and pressing plate is fixedly connected with base plate.The utility model is for demonstrating the formation of cycloid.
Description
Technical field
The utility model belongs to educational aid field, is specifically related to the cycloid demonstration teaching aid that a kind of College Mathematics Teaching uses.
Background technology
The particular curve such as bag cycloid in Higher Mathematics Teaching, a circle rolls along straight line, then justify a upper point of fixity the track of process be called cycloid, be applicable to the teaching aid that demonstration cycloid is formed at present, be unfavorable for the understanding of student to cycloid, make troubles to cycloid teaching.
Summary of the invention
The purpose of this utility model is that provide the cycloid demonstration teaching aid that a kind of College Mathematics Teaching uses, its technical scheme is as follows in order to solve the problem not being applicable to the teaching aid that demonstration cycloid is formed at present:
The cycloid demonstration teaching aid that College Mathematics Teaching uses, it comprises base plate, drawing board, rotating shaft, handle and pressing plate; Described base plate is vertical with drawing board to be arranged, the lower surface of base plate aligns with the lower surface of drawing board, the front surface of base plate is fixedly connected on the rear surface of drawing board near lower edge, and the height that drawing board is positioned at more than plate upper surface is more than or equal to the diameter of rotating shaft, and the width of drawing board is greater than the girth of rotating shaft; Described rotating shaft is arranged on base plate, and the front surface place of keeping to the side of rotating shaft is provided with multiple ball, and multiple ball equidistantly distributes, and is also provided with multiple pen plughole, in pen plughole, is provided with spring at the front surface of rotating shaft; The center, rear surface of rotating shaft is provided with handle, and handle is connected with axis of rotation; Described pressing plate is arranged on the rear side of base plate, and pressing plate is fixedly connected with base plate, and the length of pressing plate is greater than the length of handle.
The beneficial effects of the utility model are: cost is low, easy to use, are applicable to popularity and use, can insert the gel ink pen of multiple color in multiple pen plughole simultaneously, on drawing board, draw many different cycloids simultaneously.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the front side schematic diagram of the utility model shaft;
Fig. 3 is the schematic diagram of pen plughole inside in the utility model.
embodiment:
With reference to Fig. 1, Fig. 2 and Fig. 3, the cycloid demonstration teaching aid that a kind of College Mathematics Teaching uses, it comprises base plate 1, drawing board 2, rotating shaft 3, handle 4 and pressing plate 5; Described base plate 1 is vertical with drawing board 2 to be arranged, the lower surface of base plate 1 aligns with the lower surface of drawing board 2, the front surface of base plate 1 is fixedly connected on the rear surface of drawing board 2 near lower edge, the height that drawing board 2 is positioned at more than base plate 1 upper surface is more than or equal to the diameter of rotating shaft 3, and the width of drawing board 2 is greater than the girth of rotating shaft 3; Described rotating shaft 3 is arranged on base plate 1, and the front surface place of keeping to the side of rotating shaft 3 is provided with multiple ball 3-1, and multiple ball 3-1 equidistantly distributes, and is also provided with multiple pen plughole 3-2, is provided with spring 3-3 in pen plughole 3-2 at the front surface of rotating shaft 3; The center, rear surface of rotating shaft 3 is provided with handle 4, and handle 4 and rotating shaft 3 are rotationally connected; Described pressing plate 5 is arranged on the rear side of base plate 1, and pressing plate 5 is fixedly connected with base plate 1, and the length of pressing plate 5 is greater than the length of handle 4.
The degree of depth of described pen plughole 3-2 and the length of spring 3-3 should ensure that gel ink pen is when Compress Spring 3-3, and the nib of gel ink pen can be concordant with ball 3-1; The length of gel ink pen is generally 15 cm, so the degree of depth of preferred pen plughole 3-2 is 18 centimetres, the length of spring 3-3 is greater than 3 centimetres.
Preferably, described drawing board 2 is transparent panel, can see in the both sides, front and back of drawing board 2 cycloid drawn.
Preferably, described pressing plate 5 is semicircle, and the straight flange side of pressing plate 5 is connected with base plate 1.
Preferably, the surface of contact of described base plate 1 and rotating shaft 3 is non slip surface.
Preferably, the quantity of ball 3-1 is 3-6, because the quantity of ball 3-1 can increase frictional resistance too much, more than 3 just can ensure stability.
Using method: insert one or more gel ink pen in pen plughole 3-2 after, a hand lives pressing plate 5, another holds handle 4 and multiple ball 3-1 is pushed up mobile shaft 3 on drawing board 2, to ensure that rotating shaft 3 contacts with base plate 1 time mobile, just can draw cycloid on drawing board 2, thus demonstrate the formation of cycloid.
Claims (6)
1. a cycloid demonstration teaching aid for College Mathematics Teaching use, is characterized in that it comprises base plate (1), drawing board (2), rotating shaft (3), handle (4) and pressing plate (5); Described base plate (1) is vertical with drawing board (2) to be arranged, the lower surface of base plate (1) aligns with the lower surface of drawing board (2), the front surface of base plate (1) is fixedly connected on the rear surface of drawing board (2) near lower edge, the height that drawing board (2) is positioned at more than base plate (1) upper surface is more than or equal to the diameter of rotating shaft (3), and the width of drawing board (2) is greater than the girth of rotating shaft (3); Described rotating shaft (3) is arranged on base plate (1), the front surface place of keeping to the side of rotating shaft (3) is provided with multiple ball (3-1), multiple ball (3-1) equidistantly distributes, also be provided with multiple pen plughole (3-2) at the front surface of rotating shaft (3), in pen plughole (3-2), be provided with spring (3-3); The center, rear surface of rotating shaft (3) is provided with handle (4), and handle (4) and rotating shaft (3) are rotationally connected; Described pressing plate (5) is arranged on the rear side of base plate (1), and pressing plate (5) is fixedly connected with base plate (1), and the length of pressing plate (5) is greater than the length of handle (4).
2. the cycloid demonstration teaching aid of a kind of College Mathematics Teaching use as claimed in claim 1, it is characterized in that the degree of depth of described pen plughole (3-2) is 18 centimetres, the length of spring (3-3) is greater than 3 centimetres.
3. the cycloid demonstration teaching aid of a kind of College Mathematics Teaching use as claimed in claim 1, is characterized in that described drawing board (2) is transparent panel.
4. the cycloid demonstration teaching aid of a kind of College Mathematics Teaching use as claimed in claim 1, it is characterized in that described pressing plate (5) is for semicircle, the straight flange side of pressing plate (5) is connected with base plate (1).
5. the cycloid demonstration teaching aid of a kind of College Mathematics Teaching use as claimed in claim 1, is characterized in that the surface of contact of described base plate (1) and rotating shaft (3) is non slip surface.
6. the cycloid demonstration teaching aid of a kind of College Mathematics Teaching use as claimed in claim 1, is characterized in that the quantity of ball (3-1) is 3-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420660739.0U CN204117431U (en) | 2014-11-07 | 2014-11-07 | The cycloid demonstration teaching aid that College Mathematics Teaching uses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420660739.0U CN204117431U (en) | 2014-11-07 | 2014-11-07 | The cycloid demonstration teaching aid that College Mathematics Teaching uses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204117431U true CN204117431U (en) | 2015-01-21 |
Family
ID=52334721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420660739.0U Expired - Fee Related CN204117431U (en) | 2014-11-07 | 2014-11-07 | The cycloid demonstration teaching aid that College Mathematics Teaching uses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204117431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108665775A (en) * | 2018-07-16 | 2018-10-16 | 宝鸡文理学院 | A kind of physics parabola teaching aid |
-
2014
- 2014-11-07 CN CN201420660739.0U patent/CN204117431U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108665775A (en) * | 2018-07-16 | 2018-10-16 | 宝鸡文理学院 | A kind of physics parabola 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20161107 |