CN206639458U - A kind of higher mathematics demonstration device for probability - Google Patents
A kind of higher mathematics demonstration device for probability Download PDFInfo
- Publication number
- CN206639458U CN206639458U CN201720288533.3U CN201720288533U CN206639458U CN 206639458 U CN206639458 U CN 206639458U CN 201720288533 U CN201720288533 U CN 201720288533U CN 206639458 U CN206639458 U CN 206639458U
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- China
- Prior art keywords
- chamber
- ball
- archon
- demonstration device
- show stand
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Abstract
The utility model discloses a kind of higher mathematics demonstration device for probability, including show stand, chamber, black ball, red ball and Archon, the show stand is fixedly arranged above chamber, and chamber is rotatablely connected by bearing pin and case lid, it is divided into two layers by hang plate inside the chamber, motor is fixed with below the hang plate, and it is connected with rotating shaft above motor, the rotating shaft is rotatablely connected with turning set, and turning set is arranged above hang plate, the turning set is fixed with driving lever, the chamber right side opening exports provided with chamber, and the chamber outlet other end is connected with collecting box, the collecting box is fixed with control-rod, and the control-rod other end is provided with illuminating lamp, the black ball, red ball and Archon outer wall has marked 1 20, and black ball, red ball and Archon are placed in placing above plate in show stand.The utility model upsets the black ball being put into chamber, red ball and Archon by rotating plate and is entering collecting box, progress Probability Experiments demonstration random.
Description
Technical field
Demonstration equipment technical field is the utility model is related to, specially a kind of higher mathematics demonstration device for probability.
Background technology
In the teaching of major universities and colleges, the shortcomings that higher mathematics compares Other subjects, and its is dull uninteresting, can not cause student
Learning interest, especially in Teaching of Probability, the dull uninteresting content of courses can not excite the interest of student, reduce
Effect and quality of instruction are practised, at present in the teaching of probability, case is directly extracted from textbook, during explanation, is caused
Student can not imagine extract probability situation, given up the dense learning interest of student, greatly affected quality of instruction and
The results of learning of student, without one kind, directly demonstration and student intuitively watch on classroom, and ensure to carry out probabilistic experiment
The middle randomness for ensureing result, makes students aid in teaching aid and experimental provision when learning book knowledge, to deepening institute
The understanding and grasp gained knowledge are that have very big help.
Utility model content
The purpose of this utility model is to provide a kind of higher mathematics demonstration device for probability, to solve in above-mentioned background technology
The problem of proposition, possessed beneficial effect are：Drive driving lever to rotate by rotating shaft above motor, make black ball, red ball and Archon
Upset, after being sufficiently mixed, open the pumping board of chamber outlet, black ball, red ball and Archon are slipped to collection by hang plate
In case, and ensure at random, and number is certain, the quantity being put into by black ball, red ball and Archon quantity in collecting box and original is obtained
Probability, carry out Probability Experiments and demonstration.
To achieve the above object, the utility model provides following technical scheme：A kind of higher mathematics demonstration device for probability, bag
Include show stand, chamber, black ball, red ball and Archon, the show stand is fixedly arranged above chamber, and chamber by bearing pin with
Case lid is rotatablely connected, and is divided into two layers by hang plate inside the chamber, and motor, and electricity are fixed with below the hang plate
Rotating shaft is connected with above machine, the rotating shaft is rotatablely connected with turning set, and turning set is arranged above hang plate, the turning set
Fixed with driving lever, the chamber right side opening is exported provided with chamber, and the chamber outlet other end is connected with collecting box, described
Collecting box is fixed with control-rod, and the control-rod other end is provided with illuminating lamp, the black ball, red ball and Archon outer wall marked
Sequence number 1-20, and black ball, red ball and Archon are placed in placing above plate in show stand.
Preferably, universal wheel is installed below the show stand.
Preferably, the chamber is made of transparent plastic component.
Preferably, it is provided with baffle plate in the chamber outlet.
Preferably, the illuminating lamp is electrically connected with the power supply with motor by wire.
Preferably, the black ball, red ball are consistent with Archon size, weight.
Compared with prior art, the beneficial effects of the utility model are：The equipment show stand is moved to religion by universal wheel
Interior, conveniently moving, black ball, red ball and Archon are put in chamber during demonstration, pass through rotating shaft above motor and drive driving lever to turn
It is dynamic, upset black ball, red ball and Archon, after being sufficiently mixed, open the pumping board of chamber outlet, black ball, red ball and Archon
It is slipped in collecting box, and is ensured at random by hang plate, and number is certain, passes through black ball, red ball and Archon number in collecting box
Amount obtains probability with the former quantity being put into, and is made for convenience of student viewing chamber of transparent plastic structure, overwinding transfer plate
Upset the black ball being put into chamber, red ball and Archon and enter collecting box random, carry out Probability Experiments and demonstration.
Brief description of the drawings
Fig. 1 is show stand schematic diagram of the present utility model；
Fig. 2 is chamber schematic diagram of the present utility model.
In figure；1- show stands；2- chambers；3- chambers export；4- collecting boxs；5- illuminating lamps；6- control-rods；7- is black
Ball；The red balls of 8-；9- Archons；10- universal wheels；11- places plate；12- case lids；13- driving levers；14- turning sets；15- hang plates；16-
Rotating shaft；17- motors.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, a kind of embodiment provided by the utility model：A kind of higher mathematics demonstration device for probability, bag
Show stand 1, chamber 2, black ball 7, red ball 8 and Archon 9 are included, show stand 1 is fixedly arranged above chamber 2, and chamber 2 passes through pin
Axle is rotatablely connected with case lid 12, is divided into two layers by hang plate 15 inside chamber 2, and the lower section of hang plate 15 is fixed with motor
17, and the top of motor 17 is connected with rotating shaft 16, rotating shaft 16 is rotatablely connected with turning set 14, and turning set 14 is arranged at hang plate 15
Top, turning set 14 are fixed with driving lever 13, the right side opening of institute's tryoff 2 be provided with chamber outlet 3, and chamber export 3 other ends with
Collecting box 4 connects, and collecting box 4 is fixed with control-rod 6, and the other end of control-rod 6 is provided with illuminating lamp 5, black ball 7, red ball 8 and white
The outer wall of ball 9 has marked 1-20, and black ball 7, red ball 8 and Archon 9 are placed in placing the top of plate 11, exhibition in show stand 1
Show that the lower section of platform 1 is provided with universal wheel 10, chamber 2 is made of transparent plastic component, and baffle plate is provided with chamber outlet 3,
When baffle plate is put down, blocking experiment ball rolls out, and when baffle plate lifts, experiment ball will export 3 from chamber and roll into collecting box 4,
Illuminating lamp 5 is electrically connected with the power supply with motor 17 by wire, and black ball 7, red ball 8 are consistent with the size of Archon 9, weight.
Operation principle：In use, show stand 1 is moved in classroom by universal wheel 10, conveniently moving, by demonstration
When black ball 7, red ball 8 and Archon 9 are put in chamber 2, by the top rotating shaft 16 of motor 17 drive driving lever 13 rotate, make black ball
7th, red ball 8 and Archon 9 are upset, and after being sufficiently mixed, open the pumping board of chamber outlet 3, black ball 7, red ball 8 and Archon 9 are logical
Cross hang plate 15 to roll down in collecting box 4, and ensure random, and number is certain, passes through black ball 7 in collecting box 4, red ball 8 and white
The quantity of ball 9 obtains probability with the former quantity being put into, and is made for convenience of student viewing chamber 2 of transparent plastic structure, can be complete
Into Classical Probability Spaces, random experiment and the different probability demonstration such as frequency is asked, it is full-featured.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Claims (6)
1. a kind of higher mathematics demonstration device for probability, including show stand (1), chamber (2), black ball (7), red ball (8) and Archon
(9), it is characterised in that：The show stand (1) is fixedly arranged above chamber (2), and chamber (2) passes through bearing pin and case lid (12)
Rotation connection, the chamber (2) is internal to be divided into two layers by hang plate (15), and electricity is fixed with below the hang plate (15)
Machine (17), and rotating shaft (16) is connected with above motor (17), the rotating shaft (16) is rotatablely connected with turning set (14), and turning set
(14) it is arranged above hang plate (15), the turning set (14) is fixed with driving lever (13), and chamber (2) right side opening is provided with
Chamber exports (3), and chamber outlet (3) other end is connected with collecting box (4), and the collecting box (4) is fixed with control-rod
(6), and control-rod (6) other end is provided with illuminating lamp (5), the black ball (7), red ball (8) and Archon (9) outer wall marked
Sequence number 1-20, and black ball (7), red ball (8) and Archon (9) are placed in placing above plate (11) in show stand (1).
A kind of 2. higher mathematics demonstration device for probability according to claim 1, it is characterised in that：Under the show stand (1)
Side is provided with universal wheel (10).
A kind of 3. higher mathematics demonstration device for probability according to claim 1, it is characterised in that：The chamber (2) is adopted
It is made of transparent plastic component.
A kind of 4. higher mathematics demonstration device for probability according to claim 1, it is characterised in that：The chamber outlet
(3) baffle plate is provided with.
A kind of 5. higher mathematics demonstration device for probability according to claim 1, it is characterised in that：The illuminating lamp (5) with
Motor (17) is electrically connected with the power supply by wire.
A kind of 6. higher mathematics demonstration device for probability according to claim 1, it is characterised in that：The black ball (7), red ball
(8) it is consistent with Archon (9) size, weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720288533.3U CN206639458U (en) | 2017-03-23 | 2017-03-23 | A kind of higher mathematics demonstration device for probability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720288533.3U CN206639458U (en) | 2017-03-23 | 2017-03-23 | A kind of higher mathematics demonstration device for probability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206639458U true CN206639458U (en) | 2017-11-14 |
Family
ID=60250723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720288533.3U Expired - Fee Related CN206639458U (en) | 2017-03-23 | 2017-03-23 | A kind of higher mathematics demonstration device for probability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206639458U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320626A (en) * | 2018-04-10 | 2018-07-24 | 马铭 | A kind of portable mathematical probabilities demonstration device |
-
2017
- 2017-03-23 CN CN201720288533.3U patent/CN206639458U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108320626A (en) * | 2018-04-10 | 2018-07-24 | 马铭 | A kind of portable mathematical probabilities demonstration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171114 Termination date: 20180323 |