CN108538154A - A kind of student learns to use demonstration device for probability - Google Patents
A kind of student learns to use demonstration device for probability Download PDFInfo
- Publication number
- CN108538154A CN108538154A CN201810282301.6A CN201810282301A CN108538154A CN 108538154 A CN108538154 A CN 108538154A CN 201810282301 A CN201810282301 A CN 201810282301A CN 108538154 A CN108538154 A CN 108538154A
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- China
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- fixedly connected
- probability
- demonstration device
- pressure pin
- under casing
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
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- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Computational Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Algebra (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Electrically Operated Instructional Devices (AREA)
Abstract
The invention discloses a kind of students to learn to use demonstration device for probability, including under casing, the both sides of under casing inner wall bottom have been fixedly connected with baffle, the front of the baffle is provided with motor, the output end of the motor is fixedly connected with disk, and the front of the disk is fixedly connected with cylinder, and the surface of the cylinder is arranged with rocking bar, the front of the rocking bar offers the third sliding slot used with cylindrical fit, and the inner cavity of the rocking bar is arranged with movable axis.Pass through being used cooperatively for baffle, slide bar, connecting rod, pressure pin, motor, cylinder, disk, spring, fixed block, third sliding slot, rocking bar, gear, tooth plate and movable axis, it solves existing demonstration device for probability height to fix, the problem of subsequent student viewing lecture experiment in inconvenient classroom, the student learns have height-adjustable advantage with demonstration device for probability, the observation that student demonstrates probability is facilitated, the practicability of demonstration device for probability is improved.
Description
Technical field
The present invention relates to teaching aid technical field, specially a kind of student learns to use demonstration device for probability.
Background technology
The apparatus used when student being enable intuitively, visually to understand each appliances used in the content of courses and teachers' instruction
General name, referred to as, teaching aid can be improved the learning interest of student, enriches perceptual knowledge teaching aid, and help forms specific concept, develop
The observation ability and thinking ability of student, common teaching aid：Made including middle and primary schools' basic education and big, all kinds of specialized educations of special secondary school
Routine and professional teaching aid, generally have material object, objective things are directly presented in face of student, so as to student's direct feeling；
Object simulating, including sample, model and other duplicate, such as tellurion, manikin, engineering equipment model；Describe things
The chart of image, including the various visualization charts such as picture, photo, map and statistics, design；Reproduce things image and its process
Sophisticated equipment, such as projector, television set, recorder, video recorder, slide projector, projecting apparatus, what is used when also giving lessons is normal
Advise teaching aid, such as blackboard, blackboard eraser, blank, chalk.
Probability is the concept that people define according to the rule that chance event occurs, and teacher is that student is made more intuitively to learn to arrive
Knowledge in terms of probability is tested often through some actual demonstration device for probabilities, and existing demonstration device for probability height is fixed,
The inconvenient subsequent student viewing lecture experiment in classroom, reduces the practicability of demonstration device for probability.
Invention content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of students to learn to use demonstration device for probability, has adjustable
The advantages that height, solves existing demonstration device for probability height and fixes, it has not been convenient to the subsequent student viewing lecture experiment in classroom
The problem of.
(2) technical solution
To realize that above-mentioned height-adjustable purpose, the present invention provide the following technical solutions：A kind of student learns to use probability
The both sides of apparatus for demonstrating, including under casing, under casing inner wall bottom have been fixedly connected with baffle, and the front of the baffle is provided with
The output end of motor, the motor is fixedly connected with disk, and the front of the disk is fixedly connected with cylinder, the table of the cylinder
Surface cover is equipped with rocking bar, and the front of the rocking bar offers the third sliding slot used with cylindrical fit, and the inner cavity of the rocking bar is arranged
There are movable axis, the back side of the movable axis to be fixedly connected, be fixedly connected on the outside of the rocking bar with teeth with the back side of under casing inner wall
It takes turns, is engaged with tooth plate on the outside of the gear, pressure pin is fixedly connected on the outside of the tooth plate, the inner cavity of the pressure pin is provided with
Fixed block is fixedly connected with spring at the top of the fixed block, is fixedly connected at the top of the top of the spring and pressure pin inner wall,
The bottom of the fixed block is fixedly connected with slide bar, the bottom of the slide bar be through to the bottom of pressure pin and with the bottom of under casing inner wall
Portion is fixedly connected, and the top of under casing is through at the top of the pressure pin and is fixedly connected with demonstration ontology.
Preferably, the quadrangle of the under casing bottom has been fixedly connected with support column, and the bottom of the support column is fixedly connected
There is non-slip mat, and the bottom of non-slip mat is provided with anti-skid chequer.
Preferably, fixinig plate has been fixedly connected at the top and bottom of the motor, and the back side of fixinig plate and baffle are just
The junction in face is bolted to connection.
Preferably, the bottom on the outside of the pressure pin is fixedly connected with connecting rod, is fixedly connected on the outside of the connecting rod
The both sides of first sliding block, the under casing inner wall offer the first sliding groove being used cooperatively with the first sliding block.
Preferably, the both sides of the fixed block have been fixedly connected with the second sliding block, and the both sides of the pressure pin inner wall open up
There is the second sliding slot being used cooperatively with the second sliding block.
(3) advantageous effect
Compared with prior art, the present invention provides a kind of students to learn to use demonstration device for probability, has following beneficial to effect
Fruit：
1, the present invention is slided by baffle, slide bar, connecting rod, pressure pin, motor, cylinder, disk, spring, fixed block, third
Slot, rocking bar, gear, tooth plate and movable axis are used cooperatively, and are solved existing demonstration device for probability height and are fixed, it has not been convenient to teach
The problem of subsequent student viewing lecture experiment in room, which learns have height-adjustable advantage with demonstration device for probability,
The observation that student demonstrates probability is facilitated, the practicability of demonstration device for probability is improved.
2, the present invention improves the stabilization when student learns to be used with demonstration device for probability by the setting of non-slip mat
Property, it avoids due to a lack of anti-skid device, is in the presence of sliding when the student being caused to learn to be used with demonstration device for probability, pass through
The setting of fixinig plate and bolt improves stability when motor work, avoids due to a lack of fixing device, motor is caused to work
When, is in the presence of unstable, by connecting rod, the setting of the first sliding block and the first sliding groove, improves stabilization when pressure pin movement
Property, be in the presence of shaking when avoiding pressure pin movement, by the setting of the second sliding block and second sliding slot, reduce fixed block with
Frictional force between pressure pin avoids fixed block and is in direct contact with pressure pin, extends the service life of part.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is motor side view of the present invention；
Fig. 3 is pressure pin partial sectional view of the present invention；
Fig. 4 is the partial enlarged view at A in Fig. 1.
In figure：1 under casing, 2 baffles, 3 support columns, 4 slide bars, 5 connecting rods, 6 first sliding blocks, 7 the first sliding grooves, 8 pressure pins, 9 are drilled
Show ontology, 10 motors, 11 cylinders, 12 disks, 13 springs, 14 second sliding slots, 15 second sliding blocks, 16 fixed blocks, 17 third sliding slots,
18 rocking bars, 19 gears, 20 tooth plates, 21 movable axis.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1-4, a kind of student learns to use demonstration device for probability, including under casing 1, the quadrangle of 1 bottom of under casing are solid
Surely it is connected with support column 3, the bottom of support column 3 is fixedly connected with non-slip mat, and the bottom of non-slip mat is provided with anti-skid chequer, passes through
The setting of non-slip mat improves the stability when student learns to be used with demonstration device for probability, avoids due to a lack of anti-skidding dress
It sets, is in the presence of sliding when the student being caused to learn to be used with demonstration device for probability, the both sides of 1 inner wall bottom of under casing are fixed
It is connected with baffle 2, the front of baffle 2 is provided with motor 10, and the top and bottom of motor 10 have been fixedly connected with fixinig plate, and solid
The back side of stator is bolted to connection with 2 positive junction of baffle, by the setting of fixinig plate and bolt, improves electricity
Stability when machine 10 works, avoids due to a lack of fixing device, leads to be in the presence of unstable, motor when the work of motor 10
10 output end is fixedly connected with disk 12, and the front of disk 12 is fixedly connected with cylinder 11, and the surface of cylinder 11, which is arranged with, shakes
Bar 18, the front of rocking bar 18 offer the third sliding slot 17 being used cooperatively with cylinder 11, and the inner cavity of rocking bar 18 is arranged with movable axis
21, the back side of movable axis 21 is fixedly connected with the back side of 1 inner wall of under casing, and the outside of rocking bar 18 is fixedly connected with gear 19, gear
19 outside is engaged with tooth plate 20, and the outside of tooth plate 20 is fixedly connected with pressure pin 8, and the bottom in 8 outside of pressure pin is fixedly connected with company
The outside of extension bar 5, connecting rod 5 is fixedly connected with the first sliding block 6, and the both sides of 1 inner wall of under casing are offered to be coordinated with the first sliding block 6
The first sliding groove 7 used is improved steady when pressure pin 8 moves by connecting rod 5, the setting of the first sliding block 6 and the first sliding groove 7
It is qualitative, it avoids when pressure pin 8 moves and is in the presence of shaking, the inner cavity of pressure pin 8 is provided with fixed block 16, the both sides of fixed block 16
It is fixedly connected with the second sliding block 15, the both sides of 8 inner wall of pressure pin offer the second sliding slot being used cooperatively with the second sliding block 15
14, by the setting of the second sliding block 15 and second sliding slot 14, the frictional force between fixed block 16 and pressure pin 8 is reduced, is avoided
Fixed block 16 is in direct contact with pressure pin 8, extends the service life of part, and the top of fixed block 16 is fixedly connected with spring 13,
It is fixedly connected at the top of the top of spring 13 and 8 inner wall of pressure pin, the bottom of fixed block 16 is fixedly connected with slide bar 4, the bottom of slide bar 4
Portion is through to the bottom of pressure pin 8 and is fixedly connected with the bottom of 1 inner wall of under casing, and the top of pressure pin 8 is through to the top of under casing 1 simultaneously
It is fixedly connected with demonstration ontology 9.
When in use, user starts two motors 10 and works at the same time, and the work of motor 10 drives disk 12 to rotate, disk 12
Rotation drives cylinder 11 to rotate, and the rotation of cylinder 11 drives rocking bar 18 to be rotated around movable axis 21 by third sliding slot 17, rocking bar 18
Rotation driven gear 19 rotates, and the rotation band moving tooth plate 20 of gear 19 moves up and down, and tooth plate 20, which moves up and down, drives pressure pin 8 in slide bar
4 surface moves up and down, and pressure pin 8 moves up and down drive demonstration ontology 9 and moves up and down, and has reached height-adjustable advantage.
In conclusion the student learns to use demonstration device for probability, pass through baffle 2, slide bar 4, connecting rod 5, pressure pin 8, motor
10, cylinder 11, disk 12, spring 13, fixed block 16, third sliding slot 17, rocking bar 18, gear 19, tooth plate 20 and movable axis 21
It is used cooperatively, solves existing demonstration device for probability height and fix, it has not been convenient to the subsequent student viewing lecture experiment in classroom
Problem.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of student learns to use demonstration device for probability, including under casing (1), it is characterised in that：Under casing (1) the inner wall bottom
Both sides have been fixedly connected with baffle (2), and the front of the baffle (2) is provided with motor (10), the output end of the motor (10)
It is fixedly connected with disk (12), the front of the disk (12) is fixedly connected with cylinder (11), the surface set of the cylinder (11)
Equipped with rocking bar (18), the front of the rocking bar (18) offers the third sliding slot (17) being used cooperatively with cylinder (11), described to shake
The inner cavity of bar (18) is arranged with movable axis (21), and the back side of the movable axis (21) is fixedly connected with the back side of under casing (1) inner wall,
It is fixedly connected with gear (19) on the outside of the rocking bar (18), tooth plate (20), the tooth are engaged on the outside of the gear (19)
Pressure pin (8) is fixedly connected on the outside of plate (20), the inner cavity of the pressure pin (8) is provided with fixed block (16), the fixed block
(16) it is fixedly connected with spring (13) at the top of, is fixedly connected at the top of the top of the spring (13) and pressure pin (8) inner wall, institute
The bottom for stating fixed block (16) is fixedly connected with slide bar (4), the bottom of the slide bar (4) be through to the bottom of pressure pin (8) and with
The bottom of under casing (1) inner wall is fixedly connected, and the top of under casing (1) is through at the top of the pressure pin (8) and is fixedly connected with and is drilled
Show ontology (9).
2. a kind of student according to claim 1 learns to use demonstration device for probability, it is characterised in that：Under casing (1) bottom
The quadrangle in portion has been fixedly connected with support column (3), and the bottom of the support column (3) is fixedly connected with non-slip mat, and non-slip mat
Bottom is provided with anti-skid chequer.
3. a kind of student according to claim 1 learns to use demonstration device for probability, it is characterised in that：The motor (10)
Top and bottom have been fixedly connected with fixinig plate, and the back side of fixinig plate is bolted with baffle (2) positive junction
Connection.
4. a kind of student according to claim 1 learns to use demonstration device for probability, it is characterised in that：The pressure pin (8) is outside
The bottom of side is fixedly connected with connecting rod (5), and the first sliding block (6), the under casing are fixedly connected on the outside of the connecting rod (5)
(1) both sides of inner wall offer the first sliding groove (7) being used cooperatively with the first sliding block (6).
5. a kind of student according to claim 1 learns to use demonstration device for probability, it is characterised in that：The fixed block (16)
Both sides be fixedly connected with the second sliding block (15), the both sides of pressure pin (8) inner wall are offered matches with the second sliding block (15)
Close the second sliding slot (14) used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282301.6A CN108538154A (en) | 2018-03-30 | 2018-03-30 | A kind of student learns to use demonstration device for probability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282301.6A CN108538154A (en) | 2018-03-30 | 2018-03-30 | A kind of student learns to use demonstration device for probability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108538154A true CN108538154A (en) | 2018-09-14 |
Family
ID=63482202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810282301.6A Pending CN108538154A (en) | 2018-03-30 | 2018-03-30 | A kind of student learns to use demonstration device for probability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108538154A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216184A (en) * | 2020-10-09 | 2021-01-12 | 温州职业技术学院 | Supplementary teaching equipment of college moral education |
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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 |
| US5823783A (en) * | 1995-06-14 | 1998-10-20 | Adams; Mary Katherine | Rotating pie graph: mathematics learning tool |
| CN107067894A (en) * | 2017-03-15 | 2017-08-18 | 南阳理工学院 | A kind of higher mathematics demonstration device for probability |
| CN206574330U (en) * | 2017-03-12 | 2017-10-20 | 邵秀娟 | A kind of mathematics graph demonstration device |
| CN206610523U (en) * | 2017-03-07 | 2017-11-03 | 曾培栩 | A kind of student mathematics coordinate study teaching equipment |
| CN107319843A (en) * | 2017-08-11 | 2017-11-07 | 马志明 | A kind of handicraft sale exhibition booth |
| CN207038025U (en) * | 2017-06-15 | 2018-02-23 | 山东英才学院 | Landscape design sand table teaching aid |
-
2018
- 2018-03-30 CN CN201810282301.6A patent/CN108538154A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5385473A (en) * | 1993-11-01 | 1995-01-31 | Cuisenaire Company Of America, Inc. | Display polyhedra having marked and unmarked paired opposing faces |
| US5823783A (en) * | 1995-06-14 | 1998-10-20 | Adams; Mary Katherine | Rotating pie graph: mathematics learning tool |
| CN206610523U (en) * | 2017-03-07 | 2017-11-03 | 曾培栩 | A kind of student mathematics coordinate study teaching equipment |
| CN206574330U (en) * | 2017-03-12 | 2017-10-20 | 邵秀娟 | A kind of mathematics graph demonstration device |
| CN107067894A (en) * | 2017-03-15 | 2017-08-18 | 南阳理工学院 | A kind of higher mathematics demonstration device for probability |
| CN207038025U (en) * | 2017-06-15 | 2018-02-23 | 山东英才学院 | Landscape design sand table teaching aid |
| CN107319843A (en) * | 2017-08-11 | 2017-11-07 | 马志明 | A kind of handicraft sale exhibition booth |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216184A (en) * | 2020-10-09 | 2021-01-12 | 温州职业技术学院 | Supplementary teaching equipment of college moral education |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180914 |
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| RJ01 | Rejection of invention patent application after publication |