CN108597318B - Probability presentation device for student learning - Google Patents
Probability presentation device for student learning Download PDFInfo
- Publication number
- CN108597318B CN108597318B CN201810433315.3A CN201810433315A CN108597318B CN 108597318 B CN108597318 B CN 108597318B CN 201810433315 A CN201810433315 A CN 201810433315A CN 108597318 B CN108597318 B CN 108597318B
- Authority
- CN
- China
- Prior art keywords
- mounting plate
- fixedly connected
- mounting
- pipe
- base
- 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.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- 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)
- Instructional Devices (AREA)
Abstract
The invention discloses a probability demonstration device for student learning, which comprises a base, wherein supporting legs are symmetrically and fixedly connected to the bottom side of the base, a third mounting plate is fixedly connected to one side of the base, which is far away from the supporting legs, a second mounting plate is clamped to one side of the third mounting plate, a plurality of columnar pipes are arranged on the second mounting plate at equal intervals, a fixing plate is fixedly connected in each columnar pipe, a second through hole is formed in the center of the fixing plate, a floating block is connected to the inner wall of each columnar pipe in a sliding mode, a first through hole is formed in the center of the floating block, and a piston is arranged on the lower side of the fixing plate. The demonstration ball is capable of avoiding the condition that the demonstration ball is laboursome to recycle by utilizing the liquidity of the liquid, and meanwhile, the specific probability number can be clearly marked by utilizing the marking device, so that the demonstration ball is convenient for students to understand.
Description
Technical Field
The invention relates to the technical field of teaching, in particular to a probability demonstration device for student learning.
Background
Probability, also called probability, probability or likelihood, is the basic concept of probability theory. Probability is a measure for the probability of random event occurrence, generally, a real number between 0 and 1 represents the probability of an event occurrence, the current probability still becomes a subject, however, probability is an abstract concept, many students often feel abstract and incomprehensible in the course of probability course learning, therefore, teachers often use teaching aids to explain in the explanation process, but the recovery of the demonstration ball of the traditional demonstration device is laborious, and meanwhile, no scale is provided to represent the probability, so that the concrete size of the probability is fuzzy when students learn, and the students are not easy to learn.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a probability demonstration device for student learning.
In order to achieve the purpose, the invention adopts the following technical scheme:
a probability demonstration device for student learning comprises a base, wherein supporting legs are symmetrically and fixedly connected to the bottom side of the base, a third mounting plate is fixedly connected to one side of the base, which is far away from the supporting legs, a second mounting plate is clamped to one side of the third mounting plate, a plurality of columnar tubes are arranged on the second mounting plate at equal intervals, a fixing plate is fixedly connected in each columnar tube, a second through hole is formed in the center of the fixing plate, a floating block is connected to the inner wall of each columnar tube in a sliding mode, a first through hole is formed in the center of the floating block, a piston is arranged on the lower side of the fixing plate, a pull rod is fixedly connected to one side, which is far away from the fixing plate, of the piston, a second spring is wound on the pull rod, one end of the second spring is fixedly connected to one side of the piston, the other end of the second spring is connected to the side wall of the bottom end of the columnar tube, be equipped with on the second mounting panel a plurality of with pull rod assorted third mounting groove, be equipped with the rectangular channel in the base, be equipped with adjusting device between rectangular channel and the column pipe, first mounting panel is installed in the left side of base, be equipped with the second cavity on the first mounting panel, fixedly connected with dead lever in the second cavity, equidistant a plurality of mark devices that are equipped with on the dead lever, the third mounting panel deviates from the one end fixedly connected with third mounting panel of second mounting panel.
Preferably, every the marking device includes the disc, the disc rotates to be connected on the dead lever, fixedly connected with rectangular block on the disc, the joint has the mark tablet on the rectangular block, equidistant a plurality of first mounting grooves, every on the disc be equipped with the arc wall on the first mounting groove, be equipped with the second mounting groove on the first mounting panel, the both sides of second mounting groove are equipped with the slide bar, sliding connection has the ejector pin on the slide bar, the lateral wall of first mounting panel is passed and is supported on the arc wall to the one end of ejector pin, the wire-wound has first spring on the slide bar, one side at the ejector pin is connected to the one end of first spring, the other end of first spring is connected on the lateral wall of second mounting groove, it has the rectangle chi to go back the joint on the first mounting panel, the rectangle chi is located one side of second cavity.
Preferably, adjusting device includes thick pipe and tubule, the one end of thick pipe is passed through thick port and is connected on the lateral wall of column pipe, the other end of thick pipe passes the second mounting panel and is connected in the rectangular channel, the one end of tubule is passed through thin port and is connected on the lateral wall of column pipe, the other end of tubule passes the second mounting panel and is connected in the rectangular channel, thin port is located the top of thick port.
Preferably, be equipped with on the third mounting panel with column pipe assorted draw-in groove, sliding connection has the protruding board that shows in the draw-in groove, the protruding board is located one side of column pipe.
Preferably, the one end fixedly connected with drainage tube that the column pipe deviates from the second mounting panel, the drainage tube is the setting of falling the splayed.
Preferably, a rubber pad is bonded on one side of the supporting leg, which is far away from the base, and anti-skid grains are arranged on the rubber pad.
Compared with the prior art, the invention has the beneficial effects that: in the invention, when in use, the probability before demonstration is known, then the rectangular block is driven to rotate by rotating the disc, so that when the arc-shaped groove and the ejector rod are in corresponding positions, under the action of the first spring, the ejector rod is clamped in the arc-shaped groove, so that the disc is clamped, different numbers are adhered to each side surface of the rectangular block, for different sizes of probabilities, we usually need to divide the numbers between 0 and 1 equally into multiple parts, with the difference in numbers on the rectangular blocks corresponding to different probabilities, then when the demonstration device is used for recycling, the handle is pulled downwards, then the piston is driven to move downwards, then make the rivers in the column pipe flow in from the second through-hole, thereby in thin pipe and the thick pipe inflow base, let go up the handle after liquid recovery, make the piston return down of kick-backing of second spring. The demonstration ball is capable of avoiding the condition that the demonstration ball is laboursome to recycle by utilizing the liquidity of the liquid, and meanwhile, the specific probability number can be clearly marked by utilizing the marking device, so that the demonstration ball is convenient for students to understand.
Drawings
FIG. 1 is a schematic structural diagram of a probability demonstration apparatus for student learning according to the present invention;
FIG. 2 is a partially enlarged schematic view of FIG. 1;
FIG. 3 is a schematic view of a portion of the enlarged structure of A in FIG. 1;
fig. 4 is a partially enlarged structural diagram of B in fig. 2.
In the figure: the base, 2 first mounting panels, 3 supporting legs, 4 second mounting panels, 5 rectangle chi, 6 dead levers, 7 third mounting panels, 8 drainage tubes, 9 third mounting panels, 10 prominent board, 11 first through-holes, 12 float the piece, 13 column pipe, 14 arc wall, 15 first mounting groove, 16 discs, 17 rectangle piece, 18 second cavity, 19 second mounting grooves, 20 ejector pins, 21 first spring, 22 pistons, 23 tubules, 24 thick pipes, 25 third mounting grooves, 26 handles, 27 pull rods, 28 second springs, 29 second through-holes, 30 fixed plates, 31 slide bars.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a probability demonstration device for student learning, comprising a base 1, wherein the bottom side of the base 1 is symmetrically and fixedly connected with supporting legs 3, one side of each supporting leg 3, which is far away from the base 1, is bonded with a rubber pad, the rubber pad is provided with anti-skid lines to increase the stability of the equipment and a workbench, one side of the base 1, which is far away from the supporting leg 3, is fixedly connected with a third mounting plate 9, one side of the third mounting plate 9 is clamped with a second mounting plate 4, a plurality of columnar tubes 13 are arranged on the second mounting plate 4 at equal intervals, one end of each columnar tube 13, which is far away from the second mounting plate 4, is fixedly connected with a drainage tube 8, the drainage tube 8 is arranged in an inverted-splayed shape to facilitate the inflow of water flow, a fixing plate 30 is fixedly connected in each columnar tube 13, a second through hole 29 is arranged at the center of the, the downside of fixed plate 30 is equipped with piston 22, piston 22 deviates from one side fixedly connected with pull rod 27 of fixed plate 30, the round joint has second spring 28 on the pull rod 27, the one end fixed connection of second spring 28 is in one side of piston 22, the other end of second spring 28 is connected on the lateral wall of the bottom of column pipe 13, bottom lateral wall and the fixedly connected with handle 26 of column pipe 13 are passed to the one end that pull rod 27 deviates from piston 22, be equipped with on second mounting panel 4 a plurality ofly and pull rod 27 assorted third mounting groove 25, be equipped with the rectangular channel in the base 1, be equipped with adjusting device between rectangular channel and the column pipe 13.
The adjusting device comprises a thick pipe 24 and a thin pipe 23, one end of the thick pipe 24 is connected to the side wall of the columnar pipe 13 through a thick port, the other end of the thick pipe 24 passes through the second mounting plate 4 and is connected in the rectangular groove, one end of the thin pipe 23 is connected to the side wall of the columnar pipe 13 through a thin port, the other end of the thin pipe 23 passes through the second mounting plate 4 and is connected in the rectangular groove, the thin port is positioned above the thick port, so that liquid in the columnar pipe 13 can slowly and slowly flow out of the thin port when the probability is assumed, the height of the liquid in the columnar pipe 13 is convenient to control, when the demonstration is completed, the liquid in the columnar pipe 13 can flow into the base 1 through the thick pipe 24 from the thick port, the first mounting plate 2 is installed on the left side of the base 1, the second cavity 18 is arranged on the first mounting plate 2, the fixing rod 6 is fixedly connected in the, a plurality of marking devices are arranged on the fixed rod 6 at equal intervals.
Each marking device comprises a disc 16, the disc 16 is rotatably connected to a fixed rod 6, a rectangular block 17 is fixedly connected to the disc 16, a marking plate is clamped on the rectangular block 17, a plurality of first mounting grooves 15 are arranged on the disc 16 at equal intervals, an arc-shaped groove 14 is arranged on each first mounting groove 15, a second mounting groove 19 is arranged on the first mounting plate 2, slide rods 31 are arranged on two sides of the second mounting groove 19, ejector rods 20 are slidably connected to the slide rods 31, one end of each ejector rod 20 penetrates through the side wall of the first mounting plate 2 and abuts against the arc-shaped groove 14, a first spring 21 is wound on each slide rod 31, one end of each first spring 21 is connected to one side of each ejector rod 20, the other end of each first spring 21 is connected to the side wall of the second mounting groove 19, a rectangular ruler 5 is further clamped on the first mounting plate 2, the rectangular ruler 5 is positioned on one side of the second cavity 18, and the, therefore, when the arc-shaped groove 14 and the ejector rod 20 are in corresponding positions, under the action of the first spring 21, the ejector rod 20 is clamped in the arc-shaped groove 14, the disc 16 is clamped, different numbers are bonded on each side face of the rectangular block 17, the numbers between 0 and 1 are generally required to be equally divided into multiple parts according to different probabilities, and the probabilities are different according to different numbers on the rectangular block 17, so that students can conveniently understand the probabilities.
The one end fixedly connected with third mounting panel 7 that third mounting panel 9 deviates from second mounting panel 4 is equipped with on the third mounting panel 9 with column pipe 13 assorted draw-in groove, sliding connection has protruding board 10 in the draw-in groove, protruding board 10 is located one side of column pipe 13, can mark some details of noticing when using on the protruding board 10, is convenient for to the device's use.
In the invention, when in use, the size of the probability before demonstration is known, then the disc 16 is rotated, and then the rectangular block 17 is driven to rotate, so that when the arc-shaped groove 14 and the mandril 20 are in corresponding positions, the mandril 20 is clamped in the arc-shaped groove 14 under the action of the first spring 21, so that the disc 16 is clamped, different numbers are adhered to each side surface of the rectangular block 17, numbers between 0 and 1 are generally required to be equally divided into a plurality of parts according to different probabilities of the numbers on the rectangular block 17, then when the demonstration device is used up for recovery, the handle 26 is pulled downwards, then the piston 22 is driven to move downwards, then the water flow in the columnar pipe 13 flows in from the second through hole 29, then the thin pipe 23 and the thick pipe 24 flow in the base 1, and the handle 26 is released after the liquid is recovered, the piston 22 is returned by the rebound of the second spring 28.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a probability presentation device is used in student's study, includes base (1), its characterized in that: the bottom side of the base (1) is symmetrically and fixedly connected with supporting legs (3), one side of the base (1) departing from the supporting legs (3) is fixedly connected with a third mounting plate (9), one side of the third mounting plate (9) is connected with a second mounting plate (4) in a clamping manner, the second mounting plate (4) is provided with a plurality of cylindrical pipes (13) at equal intervals, the cylindrical pipes (13) are internally and fixedly connected with a fixing plate (30), the center of the fixing plate (30) is provided with a second through hole (29), the inner wall of each cylindrical pipe (13) is connected with a floating block (12) in a sliding manner, the center of each floating block (12) is provided with a first through hole (11), the lower side of the fixing plate (30) is provided with a piston (22), one side of the piston (22) departing from the fixing plate (30) is fixedly connected with a pull rod (27), and the pull rod (27) is connected with, one end of the second spring (28) is fixedly connected to one side of the piston (22), the other end of the second spring (28) is connected to the side wall of the bottom end of the cylindrical pipe (13), one end, deviating from the piston (22), of the pull rod (27) penetrates through the bottom side wall of the cylindrical pipe (13) and is fixedly connected with the handle (26), a plurality of third mounting grooves (25) matched with the pull rod (27) are formed in the second mounting plate (4), a rectangular groove is formed in the base (1), an adjusting device is arranged between the rectangular groove and the cylindrical pipe (13), the first mounting plate (2) is mounted on the left side of the base (1), a second cavity (18) is formed in the first mounting plate (2), a fixing rod (6) is fixedly connected into the second cavity (18), a plurality of marking devices are arranged at equal intervals on the fixing rod (6), and a third mounting plate (7) is fixedly connected to one end, deviating from the second mounting plate (4), of the third mounting plate (9);
adjusting device includes thick pipe (24) and tubule (23), the one end of thick pipe (24) is passed through thick port and is connected on the lateral wall of column pipe (13), the other end of thick pipe (24) passes second mounting panel (4) and is connected in the rectangular channel, the one end of tubule (23) is passed through thin port and is connected on the lateral wall of column pipe (13), the other end of tubule (23) passes second mounting panel (4) and is connected in the rectangular channel, thin port is located the top of thick port.
2. The student learning probability demonstration device as claimed in claim 1, wherein each of the labeling devices comprises a disc (16), the disc (16) is rotatably connected to the fixing rod (6), a rectangular block (17) is fixedly connected to the disc (16), a labeling board is clamped on the rectangular block (17), a plurality of first mounting grooves (15) are formed in the disc (16) at equal intervals, an arc-shaped groove (14) is formed in each first mounting groove (15), a second mounting groove (19) is formed in the first mounting plate (2), sliding rods (31) are arranged on two sides of the second mounting groove (19), a top rod (20) is slidably connected to the sliding rods (31), one end of the top rod (20) penetrates through the side wall of the first mounting plate (2) and abuts against the arc-shaped groove (14), a first spring (21) is wound on the sliding rods (31), the one side at ejector pin (20) is connected to the one end of first spring (21), the other end of first spring (21) is connected on the lateral wall of second mounting groove (19), it has rectangle chi (5) to go back the joint on first mounting panel (2), rectangle chi (5) are located one side of second cavity (18).
3. The student learning probability demonstration device as claimed in claim 1, wherein the third mounting plate (9) is provided with a slot matched with the cylindrical tube (13), a highlighting plate (10) is slidably connected in the slot, and the highlighting plate (10) is positioned on one side of the cylindrical tube (13).
4. The student learning probability demonstration device as claimed in claim 1, wherein one end of the columnar tube (13) away from the second mounting plate (4) is fixedly connected with a drainage tube (8), and the drainage tube (8) is arranged in an inverted splayed shape.
5. The student learning probability demonstration device as claimed in claim 1, wherein a rubber pad is bonded to the side of the support leg (3) away from the base (1), and anti-skid lines are arranged on the rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433315.3A CN108597318B (en) | 2018-05-08 | 2018-05-08 | Probability presentation device for student learning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433315.3A CN108597318B (en) | 2018-05-08 | 2018-05-08 | Probability presentation device for student learning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108597318A CN108597318A (en) | 2018-09-28 |
| CN108597318B true CN108597318B (en) | 2020-05-05 |
Family
ID=63636313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810433315.3A Active CN108597318B (en) | 2018-05-08 | 2018-05-08 | Probability presentation device for student learning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108597318B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637277B (en) * | 2018-12-14 | 2020-12-08 | 重庆瞿塘峡实业有限公司 | Contrast presentation device of enterprise management classification data |
| CN113436510B (en) * | 2021-07-08 | 2022-09-09 | 长春电子科技学院 | Demonstration platform for mathematical interactive teaching |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205068916U (en) * | 2015-11-05 | 2016-03-02 | 新乡职业技术学院 | Teaching aid is demonstrated to probability for mathematics |
| CN205405940U (en) * | 2016-02-19 | 2016-07-27 | 宿州学院 | Probability model teaching aid for statistics |
| CN205920651U (en) * | 2016-05-20 | 2017-02-01 | 亳州师范高等专科学校 | Mathematics probability model of university teaching aid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10210459B2 (en) * | 2016-06-29 | 2019-02-19 | The Nielsen Company (Us), Llc | Methods and apparatus to determine a conditional probability based on audience member probability distributions for media audience measurement |
-
2018
- 2018-05-08 CN CN201810433315.3A patent/CN108597318B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205068916U (en) * | 2015-11-05 | 2016-03-02 | 新乡职业技术学院 | Teaching aid is demonstrated to probability for mathematics |
| CN205405940U (en) * | 2016-02-19 | 2016-07-27 | 宿州学院 | Probability model teaching aid for statistics |
| CN205920651U (en) * | 2016-05-20 | 2017-02-01 | 亳州师范高等专科学校 | Mathematics probability model of university teaching aid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108597318A (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108597318B (en) | Probability presentation device for student learning | |
| US20220042789A1 (en) | Portable truss structure experiment device | |
| CN209898647U (en) | Mathematics teaching is with supplementary drawing device | |
| CN108847093B (en) | Physical teaching is with oblique throwing motion experiment presentation device | |
| CN210073024U (en) | Electromechanical product design platform for electromechanical students in universities and colleges of professorship | |
| CN215814663U (en) | Teaching frame is used in teaching of commercial affairs etiquette | |
| CN208637044U (en) | A kind of physical phenomenon instructional device | |
| CN210052382U (en) | Calculus presentation device for mathematical education | |
| CN209252090U (en) | A kind of Hanging chart stand | |
| CN209312268U (en) | A kind of physics experiments of high school sample display device | |
| CN206897446U (en) | A kind of bench for chemistry experiment with clamping function | |
| CN210271388U (en) | Discrete random variable distribution function demonstration and image drawing instrument | |
| CN206058661U (en) | A kind of high school physicses class experiment with falling objects apparatus for demonstrating | |
| CN211787735U (en) | A expansion plate for english teaching | |
| CN205487009U (en) | Mathematical teaching demonstration device | |
| CN211427639U (en) | Data distribution presentation device for statistics | |
| CN216623554U (en) | High school is presentation device for physical teaching | |
| CN211632448U (en) | Chinese language and literature teaching board | |
| CN215770182U (en) | Interactive teaching device of professorship english | |
| CN215495538U (en) | Online education demonstration equipment | |
| CN204406780U (en) | A kind of Aided English Teaching apparatus | |
| CN220134798U (en) | Supporting mechanism for water conservancy pipeline | |
| CN211085934U (en) | Middle school physics withstand voltage test device | |
| CN210691745U (en) | Economic management learns teaching and uses combination formula teaching aid | |
| CN210348953U (en) | Physical circumference acceleration experimental apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230914 Address after: Room 139, Building 1, No. 211 Xinling Road, Minhang District, Shanghai, 200000 Patentee after: Shanghai Ronghui Information Technology Co.,Ltd. Address before: No. 26 Baishidaotou, Xiazhuang Village, Beicheng Street, Huangyan District, Taizhou City, Zhejiang Province, 318000 Patentee before: Zhao Huixu |
|
| TR01 | Transfer of patent right |