CN204596259U - A kind of College Maths probability demonstration teaching aid - Google Patents
A kind of College Maths probability demonstration teaching aid Download PDFInfo
- Publication number
- CN204596259U CN204596259U CN201520318479.3U CN201520318479U CN204596259U CN 204596259 U CN204596259 U CN 204596259U CN 201520318479 U CN201520318479 U CN 201520318479U CN 204596259 U CN204596259 U CN 204596259U
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- China
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- vertical bucket
- spring
- top board
- bucket
- teaching aid
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Abstract
A kind of College Maths probability demonstration teaching aid, comprise base, two ends on described base are provided with column, the top of two root posts is connected by loop bar, on described loop bar, cover has sleeve pipe, described sleeve pipe is provided with the cylindrical vertical bucket of one end open, the inwall of described vertical bucket both sides is longitudinally provided with chute, slide block is inlaid with in described chute, circular top plate is connected with between two slide blocks, also comprise helical spring, the top of described spring is connected with the bottom of top board, the lower end of described spring is connected with the bottom in vertical bucket, the bucket wall of described vertical bucket is provided with gap, handle is provided with in described gap, one end of described handle is connected with top board.The utility model structure is simple, and ejected by the coin on top board by spring, the pros and cons according to coin sees demonstration result intuitively, and efficiency is high.
Description
Technical field
The utility model relates to a kind of College Maths probability demonstration teaching aid.
Background technology
If the understanding that can coordinate simple and effective demonstration teaching aid will accelerate probability when explanation probability, at present less than especially effective probability demonstration teaching aid.
Summary of the invention
The purpose of this utility model is for above-mentioned deficiency, provides a kind of College Maths probability demonstration teaching aid.
Described object is achieved by the following scheme: a kind of College Maths probability demonstration teaching aid, comprise base, two ends on described base are provided with column, the top of two root posts is connected by loop bar, on described loop bar, cover has sleeve pipe, described sleeve pipe is provided with the cylindrical vertical bucket of one end open, the inwall of described vertical bucket both sides is longitudinally provided with chute, slide block is inlaid with in described chute, circular top plate is connected with between two slide blocks, also comprise helical spring, the top of described spring is connected with the bottom of top board, the lower end of described spring is connected with the bottom in vertical bucket, the bucket wall of described vertical bucket is provided with gap, handle is provided with in described gap, one end of described handle is connected with top board.
Described base avris is provided with cavity, is provided with box body in described cavity.
The utility model has the following advantages: the utility model structure is simple, and ejected by the coin on top board by spring, the pros and cons according to coin sees demonstration result intuitively, and efficiency is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the syndeton schematic diagram of slide block and top board.
Fig. 3 is the syndeton schematic diagram of handle and gap.
Wherein, 1-base, 2-column, 3-loop bar, 4-sleeve pipe, 5-founds bucket, 6-chute, 7-slide block, 8-top board, 9-spring, 10-gap, 11-handle, 12-box body.
Embodiment
The utility model is elaborated preferred embodiment below in conjunction with accompanying drawing.
A kind of College Maths probability demonstration teaching aid, comprise base 1, two ends on described base 1 are provided with column 2, the top of two root posts 2 is connected by loop bar 3, on described loop bar 3, cover has sleeve pipe 4, described sleeve pipe 4 is provided with the cylindrical vertical bucket 5 of one end open, the inwall of described vertical bucket 5 both sides is longitudinally provided with chute 6, slide block 7 is inlaid with in described chute 6, circular top plate 8 is connected with between two slide blocks 7, also comprise helical spring 9, the top of described spring 9 is connected with the bottom of top board 8, the lower end of described spring 9 is connected with the bottom in vertical bucket 5, the bucket wall of described vertical bucket 5 is provided with gap 10, handle 11 is provided with in described gap 10, one end of described handle 11 is connected with top board 8.Described base 1 avris is provided with cavity, is provided with box body 12 in described cavity.
Vertical bucket 5 is built with multiple coin, fall on top board 8 by folded for multiple coin, handle 11 can move up and down in gap 10, pull handle 11, top board 8 moves to the lower end of vertical bucket 5, unclamps handle 11, by the elastic force of spring 9, coin on top board 8 is ejected, falls in box body 12, see the probability results of 50 percent according to the pros and cons of coin very intuitively.By slide block 7, top board 8 is fixed, when preventing spring 9 from being upspring by top board 8, the inclination of top board 8.Top board 8 vertical take off and landing in vertical bucket 5 is coordinated by chute 6 and slide block 7.
The angle regulating vertical bucket 5 is coordinated by sleeve pipe 4 and loop bar 3.
Present embodiment does not just limit its protection domain to the exemplary illustrated of this patent; those skilled in the art can also carry out local to it and change; as long as no the Spirit Essence exceeding this patent, be all considered as the equivalent replacement to this patent, all at the protection domain of this patent.
Claims (2)
1. a College Maths probability demonstration teaching aid, comprise base (1), it is characterized in that: the two ends on described base (1) are provided with column (2), the top of two root posts (2) is connected by loop bar (3), the upper cover of described loop bar (3) has sleeve pipe (4), described sleeve pipe (4) is provided with the cylindrical vertical bucket (5) of one end open, the inwall of described vertical bucket (5) both sides is longitudinally provided with chute (6), slide block (7) is inlaid with in described chute (6), circular top plate (8) is connected with between two slide blocks (7), also comprise helical spring (9), the top of described spring (9) is connected with the bottom of top board (8), the lower end of described spring (9) is connected with the bottom in vertical bucket (5), the bucket wall of described vertical bucket (5) is provided with gap (10), handle (11) is provided with in described gap (10), one end of described handle (11) is connected with top board (8).
2. College Maths probability demonstration teaching aid according to claim 1, is characterized in that: described base (1) avris is provided with cavity, is provided with box body (12) in described cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520318479.3U CN204596259U (en) | 2015-05-18 | 2015-05-18 | A kind of College Maths probability demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520318479.3U CN204596259U (en) | 2015-05-18 | 2015-05-18 | A kind of College Maths probability demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596259U true CN204596259U (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520318479.3U Expired - Fee Related CN204596259U (en) | 2015-05-18 | 2015-05-18 | A kind of College Maths probability demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204596259U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448354A (en) * | 2016-09-19 | 2017-02-22 | 安徽理工大学 | Mechanical coin throwing device for mathematic probability experiment |
| CN108961942A (en) * | 2018-09-06 | 2018-12-07 | 安徽理工大学 | A kind of probability theory experimental model teaching aid |
| CN109036001A (en) * | 2018-09-06 | 2018-12-18 | 安徽理工大学 | A kind of probabilistic models teaching optimization method |
-
2015
- 2015-05-18 CN CN201520318479.3U patent/CN204596259U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448354A (en) * | 2016-09-19 | 2017-02-22 | 安徽理工大学 | Mechanical coin throwing device for mathematic probability experiment |
| CN108961942A (en) * | 2018-09-06 | 2018-12-07 | 安徽理工大学 | A kind of probability theory experimental model teaching aid |
| CN109036001A (en) * | 2018-09-06 | 2018-12-18 | 安徽理工大学 | A kind of probabilistic models teaching optimization method |
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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: 20150826 Termination date: 20160518 |