CN205428312U - Probability theory principle presentation device - Google Patents
Probability theory principle presentation device Download PDFInfo
- Publication number
- CN205428312U CN205428312U CN201620099755.6U CN201620099755U CN205428312U CN 205428312 U CN205428312 U CN 205428312U CN 201620099755 U CN201620099755 U CN 201620099755U CN 205428312 U CN205428312 U CN 205428312U
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- China
- Prior art keywords
- plate
- box body
- demonstration
- charging conduit
- chute
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Abstract
The utility model discloses a probability theory principle presentation device, it contains demonstration box body (1), should demonstrate box body (1) whole right trapezoid structure of being, the inclined plane board department of demonstration box body (1) encloses into a demonstration chamber a through transparent plate material (2), and the bottom that should demonstrate chamber an is provided with rather than charging conduit (3) that are linked together, charging conduit (3) on offer slot (4) that the several equidistance was arranged, be provided with in this slot (4) rather than grafting complex picture peg (5), the bottom and charging conduit (3) the in close contact with of picture peg (5), the one end of picture peg (5) links to each other with locating plate (6), the mid -mounting of locating plate (6) has handle (7). The utility model discloses the structure is succinct, reasonable in design, and the preparation is convenient, and the experiment is reliable, and the process of seeing whole experiment that can be very clear has increased the interest that the student study the probability theory.
Description
Technical field
This utility model relates to a kind of demonstration device for teaching, particularly relates to a kind of Probability Principles apparatus for demonstrating.
Background technology
In the teaching of Probability Principles; abstractness because of its knowledge; make student that probability cannot be formed impression intuitively; teacher would generally use the method throwing coin to demonstrate; its overall demonstrating effect is poor; do not reach preferable teaching efficiency, the problem that therefore a kind of Probability Principles of exigence apparatus for demonstrating solves above-mentioned existence.
Utility model content
This utility model purpose is to provide a kind of Probability Principles apparatus for demonstrating, and it can efficiently solve the problem in the presence of background technology.
nullIn order to solve the problem in the presence of background technology，It comprises demonstration box body 1，This demonstration box body 1 generally ladder structure of right angle，A demonstration chamber a is surrounded by clear sheet 2 at the skewback of described demonstration box body 1，The bottom of this demonstration chamber a is provided with coupled logical charging conduit 3，The slot 4 of several equidistant arrangement is offered on described charging conduit 3，The plate 5 coordinated with its grafting it is provided with in this slot 4，The bottom of described plate 5 is in close contact with charging conduit 3，One end of described plate 5 is connected with location-plate 6，The middle part of described location-plate 6 is provided with handle 7，One end of described slot 4 is provided with the deflector chute 8 being connected with inside it，One end of this deflector chute 8 is vertically and fixedly provided with chute feeder 9，The delivery sheet 10 of one and its clearance sliding fit it is provided with in described chute feeder 9，One end of this delivery sheet 10 is vertically and fixedly provided with the side plate 11 of laminating chute feeder 9 inwall，The axle 12 with its clearance sliding fit it is provided with on described side plate 11，The other end of this axle 12 is connected with striking plate 13，It is arranged with spring on described axle 12，One end of this spring withstands on striking plate 13，Its other end withstands on side plate 11，The top of described demonstration box body 1 is provided with the trough 14 being connected with chute feeder 9，The ball-dropping hole of several equidistant arrangement is offered at the lower shoe of this trough 14，The diameter of described ball-dropping hole is more than the diameter of steel ball，The pin 15 of array equidistant arrangement it is provided with in described demonstration chamber a，It is provided with spirit bubble 16 on described deflector chute 8.
Locating slot 17 is offered on described delivery sheet 10.
The base plate of described charging conduit 3 is that tilting is arranged, and is located close to one end of deflector chute 8 at its minimum point, and the base plate of described deflector chute 8 is that tilting is arranged, and at its minimum point, position is docked with delivery sheet 10.
Offer on described chute feeder 9 and the guide chute 18 of delivery sheet 10 clearance sliding fit.
Owing to have employed above technical scheme, this utility model has the advantages that simple for structure, reasonable in design, easy to make, and experiment is reliable, it is possible to the process seeing whole experiment being apparent from, and adds the interest of Students ' Learning theory of probability.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model, below in conjunction with accompanying drawing, embodiment is briefly described.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described.
nullReferring to Fig. 1，This detailed description of the invention is to be achieved by the following technical solutions，It comprises demonstration box body 1，This demonstration box body 1 generally ladder structure of right angle，A demonstration chamber a is surrounded by clear sheet 2 at the skewback of described demonstration box body 1，The bottom of this demonstration chamber a is provided with coupled logical charging conduit 3，The slot 4 of several equidistant arrangement is offered on described charging conduit 3，The plate 5 coordinated with its grafting it is provided with in this slot 4，The bottom of described plate 5 is in close contact with charging conduit 3，One end of described plate 5 is connected with location-plate 6，The middle part of described location-plate 6 is provided with handle 7，One end of described slot 4 is provided with the deflector chute 8 being connected with inside it，One end of this deflector chute 8 is vertically and fixedly provided with chute feeder 9，The delivery sheet 10 of one and its clearance sliding fit it is provided with in described chute feeder 9，One end of this delivery sheet 10 is vertically and fixedly provided with the side plate 11 of laminating chute feeder 9 inwall，The axle 12 with its clearance sliding fit it is provided with on described side plate 11，One end of this axle 12 is connected with striking plate 13，The other end of described axle 12 is connected with pull-button 19，It is arranged with spring on described axle 12，One end of this spring withstands on striking plate 13，Its other end withstands on side plate 11，The top of described demonstration box body 1 is provided with the trough 14 being connected with chute feeder 9，The ball-dropping hole of several equidistant arrangement is offered at the lower shoe of this trough 14，The diameter of described ball-dropping hole is more than the diameter of steel ball，The pin 15 of array equidistant arrangement it is provided with in described demonstration chamber a，It is provided with spirit bubble 16 on described deflector chute 8，Offer on described chute feeder 9 and the guide chute 18 of delivery sheet 10 clearance sliding fit.
Locating slot 17 is offered on described delivery sheet 10.
The base plate of described charging conduit 3 is that tilting is arranged, and is located close to one end of deflector chute 8 at its minimum point, and the base plate of described deflector chute 8 is that tilting is arranged, and at its minimum point, position is docked with delivery sheet 10.
Offer on described chute feeder 9 and the guide chute 18 of delivery sheet 10 clearance sliding fit.
Below in conjunction with the accompanying drawings using method and the principle thereof of technical scheme part in this detailed description of the invention are further elaborated:
nullFirst handle 7 is pulled to be extracted out from charging conduit 3 by plate 5，The steel ball being positioned in charging conduit 3 is made to roll on the delivery sheet 10 being positioned at bottom chute feeder 9 through deflector chute 8，Again plate 5 is back in charging conduit 3，Then the pull-button 19 on axle 12 is pulled，And it is lifted up delivery sheet 10，Delivery sheet 10 is made to dock with the lower shoe of trough 14，Then pull-button 19 is unclamped，The steel ball promoting striking plate 13 to will be located on delivery sheet 10 under the action of the spring hits，While steel ball is hit，Whole delivery sheet 10 automatically falls into the bottom of chute feeder 9 under gravity，In entering into the steel ball in trough 14 then arbitrary ball-dropping hole on lower shoe entering into demonstration chamber a，And through each pin 15，Eventually fall in each groove that plate 5 is separated，It is finally completed whole presentation process.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, it is not intended to limit；Although being described in detail this utility model with reference to previous embodiment, it will be understood by those within the art that, the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of this utility model each embodiment technical scheme.
Claims (4)
- null1. a Probability Principles apparatus for demonstrating，It is characterized in that it comprises demonstration box body (1)，This demonstration box body (1) generally ladder structure of right angle，A demonstration chamber a is surrounded by clear sheet (2) at the skewback of described demonstration box body (1)，The bottom of this demonstration chamber a is provided with coupled logical charging conduit (3)，The slot (4) of several equidistant arrangement is offered on described charging conduit (3)，The plate (5) coordinated with its grafting it is provided with in this slot (4)，The bottom of described plate (5) is in close contact with charging conduit (3)，One end of described plate (5) is connected with location-plate (6)，The middle part of described location-plate (6) is provided with handle (7)，One end of described slot (4) is provided with the deflector chute (8) being connected with inside it，One end of this deflector chute (8) is vertically and fixedly provided with chute feeder (9)，The delivery sheet (10) of one and its clearance sliding fit it is provided with in described chute feeder (9)，One end of this delivery sheet (10) is vertically and fixedly provided with the side plate (11) of laminating chute feeder (9) inwall，The axle (12) with its clearance sliding fit it is provided with on described side plate (11)，The other end of this axle (12) is connected with striking plate (13)，It is arranged with spring on described axle (12)，One end of this spring withstands on striking plate (13)，Its other end withstands on side plate (11)，The top of described demonstration box body (1) is provided with the trough (14) being connected with chute feeder (9)，The ball-dropping hole of several equidistant arrangement is offered at the lower shoe of this trough (14)，The diameter of described ball-dropping hole is more than the diameter of steel ball，The pin (15) of array equidistant arrangement it is provided with in described demonstration chamber a，It is provided with spirit bubble (16) on described deflector chute (8).
- A kind of Probability Principles apparatus for demonstrating the most according to claim 1, it is characterised in that offer locating slot (17) on described delivery sheet (10).
- A kind of Probability Principles apparatus for demonstrating the most according to claim 1, it is characterized in that the base plate of described charging conduit (3) is that tilting is arranged, one end of deflector chute (8) it is located close at its minimum point, the base plate of described deflector chute (8) is that tilting is arranged, and at its minimum point, position is docked with delivery sheet (10).
- A kind of Probability Principles apparatus for demonstrating the most according to claim 1, it is characterised in that offer the guide chute (18) with delivery sheet (10) clearance sliding fit on described chute feeder (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099755.6U CN205428312U (en) | 2016-01-25 | 2016-01-25 | Probability theory principle presentation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099755.6U CN205428312U (en) | 2016-01-25 | 2016-01-25 | Probability theory principle presentation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205428312U true CN205428312U (en) | 2016-08-03 |
Family
ID=56539545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620099755.6U Expired - Fee Related CN205428312U (en) | 2016-01-25 | 2016-01-25 | Probability theory principle presentation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205428312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106781885A (en) * | 2017-04-11 | 2017-05-31 | 刘丰源 | A kind of mathematics random chance statistical model |
-
2016
- 2016-01-25 CN CN201620099755.6U patent/CN205428312U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106781885A (en) * | 2017-04-11 | 2017-05-31 | 刘丰源 | A kind of mathematics random chance statistical model |
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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: 20160803 Termination date: 20180125 |