CN109754678A - A kind of higher mathematics demonstration device for probability - Google Patents
A kind of higher mathematics demonstration device for probability Download PDFInfo
- Publication number
- CN109754678A CN109754678A CN201910140113.4A CN201910140113A CN109754678A CN 109754678 A CN109754678 A CN 109754678A CN 201910140113 A CN201910140113 A CN 201910140113A CN 109754678 A CN109754678 A CN 109754678A
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- material storing
- storing box
- demonstration device
- feed box
- rotating shaft
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Abstract
The invention discloses a kind of higher mathematics demonstration device for probabilities, are related to education sector, mainly for solving the problems, such as that traditional demonstration device for probability need to be driven by electricity to have certain limitation；The demonstration device for probability includes sequentially connected material storing box, feed box, feeder pipe and picking-up container from top to bottom, is provided with the different baton round of several colors in material storing box；The lumen centers position of the material storing box is rotatably connected to first rotating shaft, and the axis body periphery of first rotating shaft, which is fixed with, multiple stirs plate；The front end of the first rotating shaft stretches out material storing box and is connected with drive disk；Transfer roller is provided in the feed box, transfer roller is rotatablely connected feed box by the second shaft, offers transfer groove on transfer roller；The front end of second shaft stretches out feed box and is connected with driving lever.The present invention carries out the driving of first rotating shaft and the second shaft by the way of manual actuation, is not necessarily to external power supply, small using limitation, is more energy-saving and environmentally friendly simultaneously.
Description
Technical field
The present invention relates to education sector, specifically a kind of higher mathematics demonstration device for probability.
Background technique
Higher mathematics refers to for elementary mathematics, mathematical creation and the more many and diverse a part of method.Broadly
It says, the mathematics except elementary mathematics is all higher mathematics, is also had the more deep algebra in middle school, geometry and simple set theory
Tentatively, logic is tentatively known as medium mathematics, the higher mathematics of elementary mathematics and university stage as middle and primary schools' stage
Transition.Generally, it is considered that higher mathematics is more deep algebra, geometry and the intersection between them by infinitesimal calculus
Content is formed by a basic subject.
Probability is a subject for being under the jurisdiction of higher mathematics, and in order to reinforce the cognition of student, high number teacher sometimes can
Aided education is carried out by visual illustration, this is just needed using to demonstration device for probability, and demonstration device for probability most at present is all
It needs electric power to be driven, there is certain limitation, while also resulting in the waste of the energy.
Summary of the invention
The purpose of the present invention is to provide a kind of higher mathematics demonstration device for probabilities, to solve the above problems.
To achieve the above object, the invention provides the following technical scheme:
A kind of higher mathematics demonstration device for probability, including sequentially connected material storing box, feed box, feeder pipe and splicing from top to bottom
Case is provided with the different baton round of several colors in material storing box, and material storing box is fixed on the base by support frame；The material storing box
Two sides up and down symmetrically offer through-hole, the upside through-hole face is opened in the leak hole of material storing box bottom, the downside through-hole
The upper orifice of face feeder pipe, the lower nozzle face of feeder pipe are opened in the material receiving port at the top of picking-up container, the case of the material storing box
It is equipped on wall into bin gate, discharge door is installed on the tank wall of picking-up container；The lumen centers position of the material storing box is rotatablely connected
There is a first rotating shaft, the axis body periphery of first rotating shaft, which is fixed with, multiple stirs plate；Material storing box is stretched out simultaneously in the front end of the first rotating shaft
It is connected with drive disk, the front end face bias of drive disk is fixed with driving handle；Transfer roller, the outer roller of transfer roller are provided in the feed box
The inner wall of face and feed box fits, and transfer roller is rotatablely connected feed box by the second shaft, offers transfer groove on transfer roller, shifts
The inner cavity of slot is adapted with the outer profile of the single baton round；The front end of second shaft, which is stretched out feed box and is connected with, dials
Bar.
Based on the above technical solution, the present invention also provides following optional technical solutions:
In a kind of optinal plan: it is described enter bin gate by pin shaft be rotatablely connected material storing box tank wall, enter and be further fixed on bin gate
Handle.
In a kind of optinal plan: the end two sides of the material rotating plate are in spade integrally formed with flange, the end of flange.
In a kind of optinal plan: the distal center position of the material rotating plate is also embedded with clump weight.
In a kind of optinal plan: multiple material rotating plates are laid staggeredly along first rotating shaft, the adjacent material rotating plate edge
The length direction of first rotating shaft be disposed proximate to.
In a kind of optinal plan: being also provided with semicircular limiting slot on the front side outer wall of the feed box, driving lever leans on
The side of nearly feed box is fixed with the limited block matched with limiting slot, and limited block sliding is fastened in limiting slot.
In a kind of optinal plan: being additionally provided with cushion on the both ends internal groove side wall of the limiting slot.
Compared to the prior art, beneficial effects of the present invention are as follows:
1, the driving of first rotating shaft and the second shaft is carried out by the way of manual actuation, is not necessarily to external power supply, is used limitation
It is small, it is more energy-saving and environmentally friendly simultaneously；
2, the end setting flange that plate is stirred by being arranged in, can in the course of rotation take up baton round, to avoid
Partly plastic ball is deposited on the intracavity bottom of material storing box；
3, by being embedded clump weight in the end plate body of material rotating plate, enable material rotating plate that inertia rotation occurs, without operation
Personnel's ongoing operation drive disk, operates more laborsaving；
4, being used cooperatively by limited block and limiting slot, is defined two limit travel positions of transfer roller, avoids driving lever
Rotational angle is too large or too small to cause baton round that can not smoothly complete transfer.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view of the invention.
Fig. 2 is outer view structural schematic diagram of the invention.
Fig. 3 is to stir distribution schematic diagram of the plate in shaft in the present invention.
Fig. 4 is the enlarged structure schematic diagram of A in Fig. 2.
Appended drawing reference annotation: 1- material storing box, 11- enter bin gate, 111- pin shaft, 112- handle, 12- leak hole, 2- first rotating shaft,
21- drive disk, 211- driving handle, 3- stir plate, 31- flange, 32- clump weight, 4- feed box, 41- through-hole, 42- limiting slot,
421- cushion, 5- transfer roller, 51- transfer groove, the second shaft of 6-, 61- driving lever, 611- limited block, 7- feeder pipe, 8- picking-up container, 81-
Material receiving port, 82- discharge door, 9- pedestal, 91- support frame, 101- baton round.
Specific embodiment
Following embodiment can be described in detail the present invention in conjunction with attached drawing, in attached drawing or explanation, similar or identical part
Using identical label, and in practical applications, shape, thickness or the height of each component can be expanded or shunk.Institute of the present invention
Each embodiment enumerated is only to illustrate the present invention, is not used to limit the scope of the present invention.It is made for the present invention any aobvious
And modification easy to know or change are without departure from spirit and scope of the invention.
Embodiment 1
Please refer to Fig. 1~4, in the embodiment of the present invention, a kind of higher mathematics demonstration device for probability, including be sequentially connected with from top to bottom
Material storing box 1, feed box 4, feeder pipe 7 and picking-up container 8, be provided with the different baton round 101 of several colors in material storing box 1, store up
Hopper 1 is fixed on pedestal 9 by support frame 91；The two sides up and down of the feed box 4 symmetrically offer through-hole 41, described in upside
41 face of through-hole is opened in the leak hole 12 of 1 bottom of material storing box, the upper orifice of the downside 41 face feeder pipe 7 of through-hole, feeder pipe 7
Lower nozzle face be opened in the material receiving port 81 at the top of picking-up container 8, in use, baton round 101 is via material storing box 1,4 and of feed box
Feeder pipe 7 enters in picking-up container 8, corresponding, is equipped on the tank wall of the material storing box 1 into bin gate 11, the tank wall of picking-up container 8
On discharge door 82 is installed, after probability demonstration terminates, by discharge door 82 and enter bin gate 11 and complete being reloading with for feed box 4；
In the present embodiment, it is described enter bin gate 11 tank wall of material storing box 1 is rotatablely connected by pin shaft 111, enter on bin gate 11 also fixed
There is handle 112；
The lumen centers position of the material storing box 1 is rotatably connected to first rotating shaft 2, and the axis body periphery of first rotating shaft 2 is fixed with more
It is a to stir plate 3, baton round 101 can be stirred；The front end of the first rotating shaft 2 stretches out material storing box 1 and is connected with driving
The front end face bias of disk 21, drive disk 21 is fixed with driving handle 211, in use, driving first rotating shaft 2 by operation drive disk 21
Rotation, stirs baton round 101 so that stirring plate 3, so that baton round 101 is fallen from leak hole 12 at random, into
And probability demonstration is carried out, by the way of manual actuation, it is not necessarily to external power supply, it is small while more energy saving to use limitation
Environmental protection；
Transfer roller 5 is provided in the feed box 4, the inner wall of the outer roll surface and feed box 4 of transfer roller 5 fits, so as to leakage
Hole 12 is blocked, and transfer roller 5 is rotatablely connected feed box 4 by the second shaft 6, offers a transfer groove 51, transfer groove on transfer roller 5
51 inner cavity is adapted with the outer profile of the single baton round 101, when transfer roller 5 turns to the position of transfer groove 51 upward,
Baton round 101 enters in transfer groove 51；The front end of second shaft 6 stretches out feed box 4 and is connected with driving lever 61, passes through behaviour
Making driving lever 61 drives transfer roller 5 to rotate, to realize the transfer of baton round 101, operates simple and fast；
Preferably to stir to baton round 101, partly plastic ball 101 is avoided to be deposited on the intracavity bottom of material storing box 1, this reality
It applies in example, the end two sides of the material rotating plate 3 are integrally formed with flange 31, and the end of flange 31 is in spade, thus in rotation
Baton round 101 can be taken up；
Further, the distal center position of the material rotating plate 3 is also embedded with clump weight 32, can produce in this way in rotation larger
Inertia, rotated using inertia, persistently drive disk 21 operated without user of service, it is more laborsaving；
Further, multiple material rotating plates 3 are laid staggeredly along first rotating shaft 2, and the adjacent material rotating plate 3 is along first rotating shaft
2 length direction is disposed proximate to, and can thus guarantee the sphere of action of material rotating plate 3 to the maximum extent, is avoided the occurrence of and is stirred extremely
Angle；
Optionally, in the present embodiment, semicircular limiting slot 42, driving lever 61 are also provided on the front side outer wall of the feed box 4
It is fixed with the limited block 611 matched with limiting slot 42 close to the side of feed box 4, the sliding of limited block 611 is fastened on limiting slot
In 42, by being used cooperatively for limited block 611 and limiting slot 42, two limit travel positions of transfer roller 5 is defined, are avoided
61 rotational angle of driving lever is too large or too small to cause baton round 101 that can not smoothly complete transfer；
Further, it is additionally provided with cushion 421 on the both ends internal groove side wall of the limiting slot 42, reduces suffered by limited block 611
Hardness is hit, and is prolonged the service life.
Embodiment 2
The embodiment of the present invention provides a kind of operating method of above-mentioned higher mathematics demonstration device for probability, comprising the following steps:
1) under original state, guarantee that driving lever 61 is located at clockwise range position, so that transfer groove 51 is downward；
2) operation drive disk 21 drives first rotating shaft 2 to rotate, when specific operation, to drive disk 21 apply one it is instantaneous tangential
Then power allows first rotating shaft 2 to rotate under the action of inertia force；
3) after first rotating shaft 2 stops operating, driving lever 61 is turned to range position counterclockwise, so that 51 court of transfer groove
On, the baton round 101 positioned at 1 bottommost of material storing box enters in transfer groove 51；
4) driving lever 61 is turned into clockwise range position again, enters the baton round 101 in transfer groove 51 via blanking
Pipe 7 is fallen in picking-up container 8；
5) step 1)-step 4) is repeated to carry out probability demonstration；
6) after probability demonstration terminates, the taking-up of baton round 101 in picking-up container 8 is reloaded into material storing box 1, in case next time
It uses.
The above, the only specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, it is any
Those familiar with the art can easily think of the change or the replacement in the technical scope that the disclosure discloses, and should all contain
It covers within the protection scope of the disclosure.Therefore, the protection scope of the disclosure should be subject to the protection scope in claims.
Claims (7)
1. a kind of higher mathematics demonstration device for probability includes sequentially connected material storing box (1), feed box (4), blanking from top to bottom
(7) and picking-up container (8) are managed, is provided with the different baton round of several colors (101) in material storing box (1), material storing box (1) passes through support
Frame (91) is fixed on pedestal (9)；The two sides up and down of the feed box (4) symmetrically offer through-hole (41), the upside through-hole
(41) face is opened in the leak hole (12) of material storing box (1) bottom, the upper orifice of the downside through-hole (41) face feeder pipe (7),
The lower nozzle face of feeder pipe (7) is opened in the material receiving port (81) at the top of picking-up container (8), pacifies on the tank wall of the material storing box (1)
It is equipped with into bin gate (11), discharge door (82) is installed on the tank wall of picking-up container (8)；The lumen centers position of the material storing box (1)
It is rotatably connected to first rotating shaft (2), the axis body periphery of first rotating shaft (2), which is fixed with, multiple stirs plate (3)；
It is characterized in that, the front end of the first rotating shaft (2) stretches out material storing box (1) and is connected with drive disk (21), drive disk
(21) front end face bias is fixed with driving handle (211)；It is provided with transfer roller (5) in the feed box (4), the outer roller of transfer roller (5)
The inner wall in face and feed box (4) fits, and transfer roller (5) is opened on (5) by the second shaft (6) rotation connection feed box (4), transfer roller
Equipped with transfer groove (51), the inner cavity of transfer groove (51) is adapted with the outer profile of the single baton round (101)；Described second turn
The front end of axis (6) stretches out feed box (4) and is connected with driving lever (61).
2. higher mathematics demonstration device for probability according to claim 1, which is characterized in that it is described enter bin gate (11) pass through pin
Axis (111) is rotatablely connected the tank wall of material storing box (1), enters and is further fixed on handle (112) on bin gate (11).
3. higher mathematics demonstration device for probability according to claim 1, which is characterized in that the end of the material rotating plate (3)
Two sides are in spade integrally formed with flange (31), the end of flange (31).
4. higher mathematics demonstration device for probability according to claim 3, which is characterized in that the end of the material rotating plate (3)
Center is also embedded with clump weight (32).
5. higher mathematics demonstration device for probability according to claim 4, which is characterized in that multiple material rotating plate (3) edges
First rotating shaft (2) be laid staggeredly, the adjacent material rotating plate (3) is disposed proximate to along the length direction of first rotating shaft (2).
6. -5 any higher mathematics demonstration device for probability according to claim 1, which is characterized in that the feed box (4)
Front side outer wall on be also provided with semicircular limiting slot (42), driving lever (61) is fixed with and limits close to the side of feed box (4)
The limited block (611) that position slot (42) matches, limited block (611) sliding are fastened in limiting slot (42).
7. higher mathematics demonstration device for probability according to claim 6, which is characterized in that the both ends of the limiting slot (42)
Cushion (421) are additionally provided on internal groove side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140113.4A CN109754678A (en) | 2019-02-26 | 2019-02-26 | A kind of higher mathematics demonstration device for probability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910140113.4A CN109754678A (en) | 2019-02-26 | 2019-02-26 | A kind of higher mathematics demonstration device for probability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109754678A true CN109754678A (en) | 2019-05-14 |
Family
ID=66407719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910140113.4A Withdrawn CN109754678A (en) | 2019-02-26 | 2019-02-26 | A kind of higher mathematics demonstration device for probability |
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| Country | Link |
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| CN (1) | CN109754678A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145616A (en) * | 2020-01-15 | 2020-05-12 | 郑州航空工业管理学院 | Mathematics teaching is with portable probability presentation device |
| CN111477073A (en) * | 2020-05-25 | 2020-07-31 | 西安石油大学 | Mathematical probability demonstration device |
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| US5385473A (en) * | 1993-11-01 | 1995-01-31 | Cuisenaire Company Of America, Inc. | Display polyhedra having marked and unmarked paired opposing faces |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145616A (en) * | 2020-01-15 | 2020-05-12 | 郑州航空工业管理学院 | Mathematics teaching is with portable probability presentation device |
| CN111477073A (en) * | 2020-05-25 | 2020-07-31 | 西安石油大学 | Mathematical probability demonstration device |
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Application publication date: 20190514 |