CN204155499U - College Maths probability distribution demonstration teaching aid - Google Patents
College Maths probability distribution demonstration teaching aid Download PDFInfo
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- CN204155499U CN204155499U CN201420675648.4U CN201420675648U CN204155499U CN 204155499 U CN204155499 U CN 204155499U CN 201420675648 U CN201420675648 U CN 201420675648U CN 204155499 U CN204155499 U CN 204155499U
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- chamber
- shaped bar
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- stereotyped
- arc
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Abstract
The utility model relates to a kind of College Maths probability distribution demonstration teaching aid, the outer wall of the upper end of arc discharge chamber is provided with monitoring chamber, be provided with in the inner chamber of monitoring chamber and accept flat board, accept between dull and stereotyped front end and the outer wall of arc discharge chamber and be provided with hydraulic pressure transfer chamber, accept dull and stereotyped below and be welded with the first T-shaped bar, circular arc bent plate is provided with in the bottom of the second T-shaped bar, accept dull and stereotyped rear end and be provided with spring steel contact assembly, the data of electronic pressure gauge input in micro computer process panel.The utility model uses the phenomenon of electrical discharge arc, electric charge is absorbed by circular arc bent plate and arc-induced metallic film, thus cause moving up and down of the second T-shaped bar, the final registration indirectly changing electronic pressure gauge, and the data of electronic pressure gauge export in micro computer process panel and gather and store, can also directly implement to export in PC, be processed by professional software, finally can draw out X-Y scheme or the point diagram of probability distribution, have practical value.
Description
Technical field
The utility model relates to a kind of College Maths probability distribution demonstration teaching aid.
Background technology
In known technical field, probability distribution is one of branch important in College Maths, and probability distribution is one of key concept of theory of probability, in order to state the probabilistic law of stochastic variable value.In order to the convenience used, the difference of type belonging to stochastic variable, probability distribution gets the different forms of expression.In nature and production practices and scientific experimentation, people can observe various phenomenon, they are summed up, be divided into two large classes substantially: a class can foretell its result, namely when conservation condition is constant, repeat test, its result is always determined, must occur (or must not occur).In order to the feature allowing student more realize the randomness of probability distribution on classroom, and in order to follow-up research calculating use, first want to obtain relevant data and use to carry out demonstration.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of College Maths probability distribution demonstration teaching aid that can obtain random data distribution.
The utility model solves the technical scheme that its technical matters adopts: a kind of College Maths probability distribution demonstration teaching aid, comprise arc discharge chamber, the outer wall of the upper end of described arc discharge chamber is provided with monitoring chamber, be provided with in the inner chamber of described monitoring chamber and accept flat board, described middle part of accepting flat board is connected by rotating shaft with the sidewall of monitoring chamber, hydraulic pressure transfer chamber is provided with described undertaking between dull and stereotyped front end and the outer wall of arc discharge chamber, the first T-shaped bar is welded with in described below of accepting flat board, and described first T-shaped bar is inserted on the upside of hydraulic pressure transfer chamber, the second T-shaped bar is provided with in the downside of described hydraulic pressure transfer chamber, and the T-shaped end of described second T-shaped bar is inserted in hydraulic pressure transfer chamber, the described lower end of the second T-shaped bar and the outer wall of arc discharge chamber are slidably connected and are inserted in the inner chamber of arc discharge chamber, circular arc bent plate is provided with in the bottom of described second T-shaped bar, the downside surface of described circular arc bent plate is provided with several arc-induced metallic films in " one " font, spring steel contact assembly is provided with in described rear end of accepting flat board, on described spring steel contact assembly has, the lower Elastic Contact circle arranged respectively, described Elastic Contact circle is tool vesica piscis body structure jaggy, and Elastic Contact circle is connected with the contact of electronic pressure gauge below being positioned at,
Described teaching aid also has micro computer process panel, and the data of described electronic pressure gauge input in micro computer process panel.
The beneficial effects of the utility model are: the utility model structure is simple, reasonable in design, fully use the phenomenon of electrical discharge arc cleverly, electric charge is absorbed by circular arc bent plate and arc-induced metallic film, thus cause the upper of the second T-shaped bar, lower movement, the final registration indirectly changing electronic pressure gauge, and the data of electronic pressure gauge export in micro computer process panel and gather and store, can also directly implement to export in PC, processed by professional software, finally can draw out X-Y scheme or the point diagram of probability distribution, be used as teaching to use, has practical value.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
In figure: 1. arc discharge chamber, 2. monitor chamber, 3. accept dull and stereotyped, 4. hydraulic pressure transfer chamber, 5. the first T-shaped bar, 6. the second T-shaped bar, 7. circular arc bent plate, 8. arc-induced metallic film, 9. spring steel contact assembly, 10. electronic pressure gauge, 11. micro computer process panels.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
The preferred embodiment of the utility model College Maths probability distribution demonstration teaching aid as shown in Figure 1, comprise arc discharge chamber 1, the outer wall of the upper end of arc discharge chamber 1 is provided with monitoring chamber 2, be provided with in the inner chamber of monitoring chamber 2 and accept dull and stereotyped 3, described middle part of accepting flat board 3 is connected by rotating shaft with the sidewall of monitoring chamber 2, hydraulic pressure transfer chamber 4 is provided with between the front end of accepting flat board 3 and the outer wall of arc discharge chamber 1, the first T-shaped bar 5 is welded with in the below of accepting dull and stereotyped 3, and the first T-shaped bar 5 is inserted on the upside of hydraulic pressure transfer chamber 4, the second T-shaped bar 6 is provided with in the downside of hydraulic pressure transfer chamber 4, and the T-shaped end of the second T-shaped bar 6 is inserted in hydraulic pressure transfer chamber 4, the described lower end of the second T-shaped bar 6 and the outer wall of arc discharge chamber 1 are slidably connected and are inserted in the inner chamber of arc discharge chamber 1, circular arc bent plate 7 is provided with in the bottom of the second T-shaped bar 6, the downside surface of circular arc bent plate 7 is provided with several arc-induced metallic films 8 in " one " font, spring steel contact assembly 9 is provided with in the rear end of accepting dull and stereotyped 3, on spring steel contact assembly 9 has, the lower Elastic Contact circle arranged respectively, described Elastic Contact circle is tool vesica piscis body structure jaggy, and Elastic Contact circle is connected with the contact of electronic pressure gauge 10 below being positioned at, described teaching aid also has micro computer process panel 11, the data of described electronic pressure gauge 10 input in micro computer process panel 11.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on instructions, must determine its technical scope according to right.
Claims (1)
1. a College Maths probability distribution demonstration teaching aid, comprise arc discharge chamber (1), it is characterized in that: on the outer wall of the upper end of described arc discharge chamber (1), be provided with monitoring chamber (2), be provided with in the inner chamber of described monitoring chamber (2) and accept dull and stereotyped (3), described middle part of accepting dull and stereotyped (3) is connected by rotating shaft with the sidewall of monitoring chamber (2), hydraulic pressure transfer chamber (4) is provided with described undertaking between the front end of dull and stereotyped (3) and the outer wall of arc discharge chamber (1), the first T-shaped bar (5) is welded with in described below of accepting dull and stereotyped (3), and described first T-shaped bar (5) is inserted in hydraulic pressure transfer chamber (4) upside, the second T-shaped bar (6) is provided with in the downside of described hydraulic pressure transfer chamber (4), and the T-shaped end of described second T-shaped bar (6) is inserted in hydraulic pressure transfer chamber (4), the described lower end of the second T-shaped bar (6) and the outer wall of arc discharge chamber (1) are slidably connected and are inserted in the inner chamber of arc discharge chamber (1), circular arc bent plate (7) is provided with in the bottom of described second T-shaped bar (6), the downside surface of described circular arc bent plate (7) is provided with several arc-induced metallic films (8) in " one " font, spring steel contact assembly (9) is provided with in described rear end of accepting dull and stereotyped (3), on described spring steel contact assembly (9) has, the lower Elastic Contact circle arranged respectively, described Elastic Contact circle is tool vesica piscis body structure jaggy, and Elastic Contact circle is connected with the contact of electronic pressure gauge (10) below being positioned at,
Described teaching aid also has micro computer process panel (11), and the data of described electronic pressure gauge (10) input in micro computer process panel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675648.4U CN204155499U (en) | 2014-11-13 | 2014-11-13 | College Maths probability distribution demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675648.4U CN204155499U (en) | 2014-11-13 | 2014-11-13 | College Maths probability distribution demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204155499U true CN204155499U (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420675648.4U Expired - Fee Related CN204155499U (en) | 2014-11-13 | 2014-11-13 | College Maths probability distribution demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204155499U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551347A (en) * | 2016-01-21 | 2016-05-04 | 殷俊峰 | Probability learning device for intelligent mathematics teaching |
| CN105761581A (en) * | 2016-05-14 | 2016-07-13 | 哈尔滨共阳科技咨询有限公司 | Probability teaching demonstration model |
| CN109166411A (en) * | 2018-10-31 | 2019-01-08 | 郑州职业技术学院 | A kind of probability event interesting teaching model |
| CN109166412A (en) * | 2018-10-31 | 2019-01-08 | 郑州职业技术学院 | A kind of demonstration of Probability Teaching and statistic device |
| CN109215451A (en) * | 2018-10-31 | 2019-01-15 | 郑州职业技术学院 | A kind of probability event express statistic device |
-
2014
- 2014-11-13 CN CN201420675648.4U patent/CN204155499U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551347A (en) * | 2016-01-21 | 2016-05-04 | 殷俊峰 | Probability learning device for intelligent mathematics teaching |
| CN105551347B (en) * | 2016-01-21 | 2019-02-05 | 临沂大学 | A kind of intelligent mathematical teaching probability learning device |
| CN105761581A (en) * | 2016-05-14 | 2016-07-13 | 哈尔滨共阳科技咨询有限公司 | Probability teaching demonstration model |
| CN109166411A (en) * | 2018-10-31 | 2019-01-08 | 郑州职业技术学院 | A kind of probability event interesting teaching model |
| CN109166412A (en) * | 2018-10-31 | 2019-01-08 | 郑州职业技术学院 | A kind of demonstration of Probability Teaching and statistic device |
| CN109215451A (en) * | 2018-10-31 | 2019-01-15 | 郑州职业技术学院 | A kind of probability event express statistic device |
| CN109166412B (en) * | 2018-10-31 | 2020-08-07 | 郑州职业技术学院 | Probability teaching demonstration and statistics device |
| CN109215451B (en) * | 2018-10-31 | 2020-10-16 | 苏州元联科技创业园管理有限公司 | Probability event rapid statistical device |
| CN109166411B (en) * | 2018-10-31 | 2020-10-30 | 张学利 | Interesting teaching model for probability events |
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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: 20150211 Termination date: 20161113 |