CN205810208U - Mathematical education probabilistic model teaching aid - Google Patents
Mathematical education probabilistic model teaching aid Download PDFInfo
- Publication number
- CN205810208U CN205810208U CN201620339239.6U CN201620339239U CN205810208U CN 205810208 U CN205810208 U CN 205810208U CN 201620339239 U CN201620339239 U CN 201620339239U CN 205810208 U CN205810208 U CN 205810208U
- Authority
- CN
- China
- Prior art keywords
- coin
- groove
- coin groove
- push rod
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
This utility model provides a kind of mathematical education probabilistic model teaching aid, including housing, below described housing, it is provided with support seat, is provided with into coin groove in housing, pushes away coin groove and the coin groove that falls, described enter coin groove be vertically arranged, enter coin groove and be arranged over coin feeding hole, described in push away coin groove and enter coin groove and communicate, push away coin groove and be horizontally disposed with, push away and outside coin groove, be provided with the first currency-pulling device, described fall coin groove communicate with pushing away coin groove, described in the outside side of coin groove that falls be provided with the second currency-pulling device, the outside opposite side of the coin groove that falls is provided with coin discharge.This teaching aid can replace manpower to carry out automatic imitation throwing coin experiment, and automaticity is high, when teacher carries out probability teaching demonstration, can save substantial amounts of instructional blocks of time and manpower.
Description
Technical field
This utility model relates generally to a kind of Teaching in University teaching aid, and specifically a kind of mathematical education probabilistic model is taught
Tool.
Background technology
Probability is the concept of the rule definition that people occur according to random event, in university's higher mathematics, teacher
For making student learn more intuitively to the knowledge in terms of probability, often through the probability lecture experiment of some reality, teaching demonstration
Student can be made to obtain vividly and intuitively perceptual knowledge, deepen the impression to knowledge, in actual presentation teaching process,
Teacher's general motion intuitive teaching aid, coordinates speech to carry out example operation performance.In College Maths Probability Teaching at present
The probability teaching demonstration often done is to throw coin experiment, i.e. through repeatedly throwing coin, counts and obtains coin positive and negative upwards general
Rate is 1/2nd.
Traditional throwing coin teaching and experiment method is that one piece of coin is repeatedly dished out by teacher, after finally statistics coin falls just
The number of times that reverse side occurs, in order to increase accuracy and the credibility of experiment, generally requires the coin thrown many times, during due to classroom
Between limited, traditional artificial method throwing coin can waste the most of time on classroom, and in experimentation, be usually and need
Want teacher repeatedly to dish out coin, need the coin dished out to pick up to throw again every time, waste time and energy.
Utility model content
For solving the deficiency of current technology, this utility model combines prior art, from reality application, it is provided that a kind of number
Learning teaching probabilistic model teaching aid, this teaching aid can replace manpower to carry out automatic imitation throwing coin experiment, and automaticity is high, in religion
During Shi Jinhang probability teaching demonstration, substantial amounts of instructional blocks of time and manpower can be saved.
For achieving the above object, the technical solution of the utility model is as follows:
Mathematical education probabilistic model teaching aid, including housing, is provided with support seat, is provided with into coin in housing below described housing
Groove, push away coin groove and the coin groove that falls, described in enter coin groove and be vertically arranged, enter coin groove and be arranged over coin feeding hole, described in push away coin groove and enter coin groove
Communicating, push away coin groove and be horizontally disposed with, push away and be provided with the first currency-pulling device outside coin groove, described first currency-pulling device includes the first chute
Seat, the first slide block, the first push rod, described first sliding chute seat is fixed on hull outside, and described first slide block is slidably disposed in
In first sliding chute seat, being provided with rectangular channel in the first slide block, the upper and lower of rectangular channel is provided with the passive tooth of symmetry, in rectangular channel
Being provided with the first driving wheel, described first driving wheel is provided with the driving tooth matched with passive tooth, and the first driving wheel connects first
Driving motor, described first push rod one end is fixing with the first slide block to be connected, and the first push rod other end passes housing deeply to pushing away coin
Groove, first drives motor that the first push rod can be driven to move back and forth in pushing away coin groove, described in fall coin groove and push away coin groove and communicate, fall coin groove
Be vertically arranged, enter the coin in coin groove fall into push away coin groove after can be pushed into coin groove by the first push rod, described in fall coin groove outside
Side is provided with the second currency-pulling device, and the outside opposite side of the coin groove that falls is provided with coin discharge, described second currency-pulling device include the second sliding chute seat,
Second slide block, the second push rod, described second sliding chute seat is fixed on hull outside, and described second slide block is slidably disposed in second
In sliding chute seat, being provided with rectangular channel in the second slide block, the upper and lower of rectangular channel is provided with the passive tooth of symmetry, is provided with in rectangular channel
Second driving wheel, described second driving wheel is provided with the driving tooth matched with passive tooth, and the second driving wheel connects the second driving
Motor, second drives motor that the second push rod can be driven to move back and forth in the coin groove that falls, described second push rod one end and the second slide block
Fixing connection, the second push rod other end is through housing deeply to the coin groove that falls, and the coin falling into coin groove can be by the second push rod by going out
Coin mouth is released.
The side of described coin discharge is provided with extension board, and described extension board is a flat board, and extension board is arranged on hull outside, falls
Coin in coin groove is pushed out on the extension board of outside by coin discharge.
The edge of described extension board bottom is provided with a L-type planker, and described planker is provided with coin receptacle.
The beneficial effects of the utility model:
1, this utility model can replace traditional artificial throwing coin Probability Experiments, and coin drops into first and pushes away coin by entering coin groove
Setting position, the first currency-pulling device uses motor to drive, automatically is pushed in coin groove by coin by the first push rod, and coin enters
The process of coin groove of entering is traditional throwing coin process, and coin can be obtained by the number of times that statistics coin positive and negative occurs after falling
Go out corresponding probability；This utility model replaces manually throwing coin by automatic structure, has not only saved manpower and also can save and award
The most of the time of class.
2, of the present utility model enter can disposably place multiple coin in coin groove, make coin fall one by one, improve probability real
Test efficiency；The coin fallen in coin groove can be released by the second currency-pulling device automatically simultaneously, it is simple to the statistics directly perceived of coin positive and negative and
The recovery of coin.
3, this utility model is by arranging coin receptacle, is reclaimed by the coin released from coin tray, the coin after recovery
I.e. can be used repeatedly without manual sorting, save experimental period and save manpower simultaneously.
Accompanying drawing explanation
Accompanying drawing 1 is this utility model population structure schematic diagram.
Label shown in accompanying drawing: 1, coin feeding hole；2, coin；3, housing；4, coin groove is entered；5, coin groove is pushed away；6, the first push rod；7、
First slide block；8, the first driving wheel；9, the first sliding chute seat；10, the second push rod；11, the second slide block；12, the second driving wheel；13、
Second sliding chute seat；14, fall coin groove；15, coin discharge；16, extension board；17, planker；18, coin receptacle；19, seat is supported.
Detailed description of the invention
In conjunction with the drawings and specific embodiments, the utility model is described in further detail.Should be understood that these embodiments are only used for
This utility model is described rather than limits scope of the present utility model.In addition, it is to be understood that reading this utility model instruction
Content after, this utility model can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall equally
In the application appended claims limited range.
As shown in Figure 1, mathematical education probabilistic model teaching aid, including housing 3, below described housing 3, it is provided with support seat
19, be provided with into coin groove 4 in housing 3, push away coin groove 5 and the coin groove 14 that falls, described in enter coin groove 4 and be vertically arranged, enter coin groove 4 be arranged over into
Coin mouth 1, described in push away coin groove 5 and enter coin groove 4 and communicate, push away coin groove 5 and be horizontally disposed with, push away that coin groove 5 is outside is provided with the first currency-pulling device, institute
Stating the first currency-pulling device and include first sliding chute seat the 9, first slide block the 7, first push rod 6, described first sliding chute seat 9 is fixed on housing 3
Outside, described first slide block 7 is slidably disposed in the first sliding chute seat 9, is provided with rectangular channel in the first slide block 7, rectangular channel
Upper and lower is provided with the passive tooth of symmetry, is provided with the first driving wheel 8 in rectangular channel, and described first driving wheel 8 is provided with and quilt
The driving tooth that dynamic tooth matches, the first driving wheel 8 connects the first driving motor, and described first push rod 6 one end is solid with the first slide block 7
Fixed connection, first push rod 6 other end is through housing 3 deeply to pushing away coin groove 5, and first drives motor that the first push rod 6 can be driven to push away
Move back and forth in coin groove 5, described in fall coin groove 14 and push away coin groove 5 and communicate, the coin groove 14 that falls is vertically arranged, and the coin 2 entered in coin groove 4 falls
Can be pushed into coin groove 14 by the first push rod 6 after entering to push away coin groove 5, described in the outside side of coin groove 14 that falls be provided with the second currency-pulling device,
The outside opposite side of the coin groove 14 that falls is provided with coin discharge 15, described second currency-pulling device include second sliding chute seat the 13, second slide block 11, the
Two push rods 10, it is outside that described second sliding chute seat 13 is fixed on housing 3, and described second slide block 11 is slidably disposed in the second chute
In seat 13, being provided with rectangular channel in the second slide block 11, the upper and lower of rectangular channel is provided with the passive tooth of symmetry, is provided with in rectangular channel
Second driving wheel 12, described second driving wheel 12 is provided with the driving tooth matched with passive tooth, and the second driving wheel connects second
Driving motor, second drives motor that the second push rod 10 can be driven to move back and forth in the coin groove 14 that falls, described second push rod 10 one end
Fixing with the second slide block 11 and be connected, second push rod 10 other end deeply to the coin groove 14 that falls, falls into the hard of coin groove 14 through housing 3
Coin 2 can be released by coin discharge 15 by the second push rod 10.
Supporting seat 19 is T-shaped seat, is used for supporting this model teaching aid, facilitates math teacher to be placed on by this teaching aid when testing
On lectern；Enter coin groove 4 and be arranged on the top of this device, enter coin feeding hole 1 on coin groove 4 for placing coin in entering coin groove 4,
Entering the width of coin groove 4 diameter slightly larger than a coin 2, the most multiple coins 2 are placed into after coin tray 4 in as shown in Figure 1
Yi word pattern be vertically arranged, push away the width of coin groove 5 and to enter coin groove 4 equal, therefore in entering the coin 2 of coin groove 4 least significant end simultaneously
Also being located at pushing away coin groove 5 foremost, the first push rod 6 of the first currency-pulling device is arranged on the center of coin 2, the first electric machine rotation
Time drive the first driving wheel 8 to rotate, the first driving wheel 8 can drive when rotating the first slide block 7 in the first chute 9 reciprocating linear fortune
Dynamic, be connected owing to the first push rod 6 is fixing with the first slide block 7, therefore the first push rod 6 can realize reciprocating motion, when the first push rod 6 to
When coin 2 one side moves, promoting coin 2 to drop in coin groove 14, the first push rod 6 is retracted afterwards, now enters in coin groove 4
Coin continue fall, the first push rod 6 stretches out to be released the coin 2 again fallen, with secondary repeated work, coin 2 is dished out to
Falling in coin groove 14, the coin 2 fallen in coin groove 4 can count positive and negative, and the coin 2 fallen is directly through the second currency-pulling device
Released coin groove 4 by coin discharge 15 and enter on extension board 16, the operation principle of the second currency-pulling device and the first currency-pulling device phase
With, make the second push rod 10 realize moving back and forth by the second motor, coin 2 is released coin groove 4.
Extension board 16 of the present utility model is a flat board, and it is outside that extension board 16 is arranged on housing 3, and fall the coin in coin groove 14
2 are pushed out on the extension board 16 of outside by coin discharge 15；The edge of extension board 16 bottom is provided with a L-type planker 17, planker 17
It is provided with coin receptacle 18.Along with the coin 2 on extension board 16 gradually increases, the coin 2 being positioned at front end can be pushed away by the coin of rear end
Dropping down onto in coin receptacle 18, the diameter of coin 18 casees is slightly larger than the diameter of coin 2, owing to coin 2 is to drop into coin receptacle 18 one by one
In, therefore coin 2 ordered arrangement in coin receptacle 18, when coin receptacle 18 fills with, coin receptacle 18 is pulled down, take out coin 2 and make
It is continuing with for experiment coin.
This utility model automaticity is high, it is not necessary to artificial coin of throwing can carry out Probability Teaching experiment in College Maths,
There is time saving and energy saving advantage.
Claims (3)
1. mathematical education probabilistic model teaching aid, it is characterised in that: include that housing (3), described housing (3) lower section are provided with support seat
(19), be provided with into coin groove (4) in housing (3), push away coin groove (5) and the coin groove (14) that falls, described in enter coin groove (4) and be vertically arranged, enter coin
Groove (4) is arranged over coin feeding hole (1), described in push away coin groove (5) and enter coin groove (4) and communicate, push away coin groove (5) and be horizontally disposed with, push away coin groove
(5) outside being provided with the first currency-pulling device, described first currency-pulling device includes the first sliding chute seat (9), the first slide block (7), first pushes away
Bar (6), it is outside that described first sliding chute seat (9) is fixed on housing (3), and it is sliding that described first slide block (7) is slidably disposed in first
In groove seat (9), the first slide block is provided with rectangular channel in (7), and the upper and lower of rectangular channel is provided with the passive tooth of symmetry, in rectangular channel
Being provided with the first driving wheel (8), described first driving wheel (8) is provided with the driving tooth matched with passive tooth, the first driving wheel (8)
Connecting the first driving motor, described first push rod (6) one end is fixing with the first slide block (7) to be connected, and the first push rod (6) other end is worn
Crossing housing (3) to go deep into pushing away coin groove (5), first drives motor that the first push rod (6) can be driven to move back and forth in pushing away coin groove (5),
Described fall coin groove (14) communicate with pushing away coin groove (5), the coin groove (14) that falls is vertically arranged, and enters the coin (2) in coin groove (4) and falls into and push away coin
Can be pushed into coin groove (14) by the first push rod (6) after groove (5), described in the outside side of coin groove (14) that falls be provided with second and push away coin dress
Putting, the outside opposite side of the coin groove (14) that falls is provided with coin discharge (15), described second currency-pulling device include the second sliding chute seat (13), second
Slide block (11), the second push rod (10), it is outside that described second sliding chute seat (13) is fixed on housing (3), and described second slide block (11) can
That slides is arranged in the second sliding chute seat (13), and the second slide block is provided with rectangular channel in (11), and the upper and lower of rectangular channel is provided with
Symmetrical passive tooth, is provided with the second driving wheel (12) in rectangular channel, described second driving wheel (12) is provided with and matches with passive tooth
The driving tooth closed, the second driving wheel (12) connects the second driving motor, and second drives motor that the second push rod (10) can be driven to fall
Moving back and forth in coin groove (14), described second push rod (10) one end is fixing with the second slide block (11) to be connected, and the second push rod (10) is another
One end is through housing (3) deeply to the coin groove (14) that falls, and the coin (2) falling into coin groove (14) can be by the second push rod (10) by coin-out
Mouth (15) is released.
2. mathematical education probabilistic model teaching aid as claimed in claim 1, it is characterised in that: the side of described coin discharge (15)
Being provided with extension board (16), described extension board (16) is a flat board, and it is outside that extension board (16) is arranged on housing (3), and fall coin groove (14)
Interior coin (2) is pushed out on the extension board (16) of outside by coin discharge (15).
3. mathematical education probabilistic model teaching aid as claimed in claim 2, it is characterised in that: described extension board (16) bottom
Edge is provided with a L-type planker (17), and described planker (17) is provided with coin receptacle (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620339239.6U CN205810208U (en) | 2016-04-20 | 2016-04-20 | Mathematical education probabilistic model teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620339239.6U CN205810208U (en) | 2016-04-20 | 2016-04-20 | Mathematical education probabilistic model teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205810208U true CN205810208U (en) | 2016-12-14 |
Family
ID=58144448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620339239.6U Expired - Fee Related CN205810208U (en) | 2016-04-20 | 2016-04-20 | Mathematical education probabilistic model teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205810208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491253A (en) * | 2019-08-14 | 2019-11-22 | 吉林医药学院 | A kind of analog demenstration teaching aid for mathematical probabilities statistics |
-
2016
- 2016-04-20 CN CN201620339239.6U patent/CN205810208U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491253A (en) * | 2019-08-14 | 2019-11-22 | 吉林医药学院 | A kind of analog demenstration teaching aid for mathematical probabilities statistics |
| CN110491253B (en) * | 2019-08-14 | 2021-04-13 | 吉林医药学院 | Simulation demonstration teaching aid for mathematical probability statistics |
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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: 20161214 Termination date: 20170420 |