CN113744603A - Higher mathematics probability presentation device - Google Patents
Higher mathematics probability presentation device Download PDFInfo
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- CN113744603A CN113744603A CN202111142517.0A CN202111142517A CN113744603A CN 113744603 A CN113744603 A CN 113744603A CN 202111142517 A CN202111142517 A CN 202111142517A CN 113744603 A CN113744603 A CN 113744603A
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- 238000002474 experimental method Methods 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 244000309464 bull Species 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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Abstract
The invention provides a higher mathematics probability demonstration device, and relates to the field of teaching equipment. This higher mathematics probability presentation device, the on-line screen storage device comprises a base, the surface of base is provided with information acquisition mechanism, the upper surface of base is provided with probability experiment mechanism, the inner diapire of base is provided with actuating mechanism, the surface of base is provided with control mechanism, the surface of base is rotated and is connected with the connecting axle, the fixed surface of connecting axle is connected with the fag end, the fag end symmetric distribution is at the positive and negative of base. Magnet circular telegram for electro-magnet and magnetic sheet inter attraction, and then pulling actuating lever downstream, the movable block is followed and is moved down, and reset spring is compressed, carries out the energy storage, and the actuating lever no longer removes the back, cuts off the power supply with the electro-magnet, and reset spring drive movable block resets and throws the dice on, throws, and the dice is stable after, and the control camera is shot, and follow-up through photo acquisition information, is difficult for makeing mistakes.
Description
Technical Field
The invention relates to the technical field of teaching equipment, in particular to a higher mathematics probability demonstration device.
Background
In advanced math teaching, probability is a concept defined by a rule of occurrence of random events, and in classical general teaching, teachers giving lessons often pass some practical probability demonstration experiments in order to enable students to learn knowledge in the aspect of probability more intuitively, wherein the most common experiment is a coin throwing experiment, namely, the probability that the positive and negative faces of a coin are counted to be one half after multiple coin throwing; or throwing the dice, and counting the probability of each point of the dice, namely the probability is one sixth; or the probability of randomly drawing each color ball with the same number of balls with different colors.
The applicant finds that a Chinese patent discloses a high-grade mathematic probability demonstration device through retrieval when applying the invention, the application number is '201710114278.5', the patent is mainly characterized in that a transparent demonstration box is arranged, the rotation and the number of points of a screen are clearly visible, the demonstration box is of a regular polygon structure and is beneficial to the uniform overturning of the screen, the demonstration box is favorably manually rotated by a crank arranged on a turntable and can be accommodated in a rectangular groove, the electric rotation of the demonstration box is not influenced, the demonstration box can be driven to rotate by a motor, probability distribution demonstration can be carried out by repeatedly demonstrating the number of points of the screen, the height of a telescopic rod is convenient to adjust, the flexibility is high, and the defects are as follows:
1. the number of the dice is manually collected, so that recording errors are easy to occur, and the teaching effect is poor;
2. according to the patent, the number of the dice can be clearly observed only by approaching the device, namely, only a few students can clearly observe the dice, so that the learning efficiency of the students is influenced;
3. the continuous rolling of the dice takes longer to record.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a higher mathematics probability demonstration device, which solves the problems that the counting of dices is collected manually, the recording error is easy to occur, the teaching effect is poor, the counting of the dices can be observed clearly only by approaching the device, that is, only a few students can observe clearly, the learning efficiency of the students is influenced, and the time consumed by continuously rolling the dices is long.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a higher mathematics probability presentation device, includes the base, the surface of base is provided with information acquisition mechanism, the upper surface of base is provided with probability experiment mechanism, the inner diapire of base is provided with actuating mechanism, the surface of base is provided with control mechanism, the surface of base is rotated and is connected with the connecting axle, the fixed surface of connecting axle is connected with the fag end, the fag end symmetric distribution is at the positive and negative of base.
Preferably, the information acquisition mechanism includes the connecting plate, the surface and the base fixed connection of connecting plate, the slip hole has been seted up on the surface of connecting plate, the screw has been seted up to the inner wall of slip hole, the inner wall threaded connection of screw has the location knob, the one end fixedly connected with anti-skidding contact of location knob, the inner wall sliding connection of slip hole has the square pole, the one end of square pole is rotated through the damping pivot and is connected with the bull stick, the inner wall fixedly connected with camera of bull stick.
Preferably, the surface of the camera is fixedly connected with a connecting frame, and the inner wall of the connecting frame is rotatably connected with the square rod through a bearing.
Preferably, one end of the square rod, which is far away from the rotating rod, is fixedly connected with a limiting plate, and the limiting plate is in a circular plate shape.
Preferably, probability experiment mechanism is including separating the cover, the material that separates the cover is transparent material, separate the surface and the base fixed connection of cover, the inside that separates the cover is provided with the dice, the inner wall sliding connection who separates the cover has the movable block, the fixed surface of movable block is connected with the baffle, the fixed surface of baffle is connected with the actuating lever, the surface of actuating lever is provided with reset spring, the one end fixedly connected with mounting panel of actuating lever, the lower surface mosaic of mounting panel has the magnetic sheet.
Preferably, actuating mechanism includes the electro-magnet, the inner wall fixedly connected with baffle of base, the through-hole has been seted up on the surface of baffle, the baffle passes through-hole and actuating lever sliding connection, the material of base and baffle is the magnetism isolating material.
Preferably, control mechanism includes control panel, control panel and information acquisition mechanism electric connection, the inner wall fixedly connected with controller of base, controller and control panel electric connection, control panel's surface is provided with signal interface.
Preferably, the surface of the control panel is provided with a display screen, and the surface of the control panel and the position below the display screen are provided with control keys.
Preferably, the lower fixed surface of base is connected with the supporting leg, the lower fixed surface of supporting leg is connected with the slipmat, the fixed surface of supporting leg is connected with the splice bar.
The working principle is as follows: through the cooperation of data line and signal interface 505, connect multimedia display screen or projector with control panel 501, start controller 502 through control button 504, it is circular telegram to electro-magnet 401 through controller 502, electro-magnet 401 circular telegram, make electro-magnet 401 and magnetic sheet 308 attract each other, and then pulling actuating lever 305 to move down, movable block 303 is followed and is moved down, reset spring 306 is compressed, carry out the energy storage, after actuating lever 305 is not removing, cut off the electro-magnet 401, reset spring 306 drives movable block 303 and resets and throws dice 302 on, throw, dice 302 is stable, control the camera and shoot, multimedia display screen or projector demonstrate, be convenient for the student and watch, through the timer in control panel 501, set the interval time, throw dice 302 repeatedly, the process of shooing, can carry out data acquisition fast.
(III) advantageous effects
The invention provides a higher mathematics probability demonstration device. The method has the following beneficial effects:
1. according to the dice throwing device, the magnet is electrified, so that the electromagnet and the magnetic plate are mutually attracted, the driving rod is further pulled to move downwards, the moving block moves downwards, the reset spring is compressed to store energy, the electromagnet is powered off after the driving rod does not move any more, the reset spring drives the moving block to reset to throw the dice upwards, the dice are thrown, the camera is controlled to shoot the dice after the dice are stable, and the information is acquired through the photos subsequently, so that errors are not prone to occurring.
2. According to the invention, the control panel is connected with the multimedia display screen or the projector through the cooperation of the data line and the signal interface, and the multimedia display screen or the projector is displayed, so that the students can conveniently watch the multimedia display screen or the projector, the students can participate in the multimedia display screen or the projector, and the learning efficiency of the students is improved.
3. According to the invention, through the timer in the control panel, the interval time is set, the dice throwing and photographing processes are repeated, data acquisition can be rapidly carried out, and data processing is carried out on students in groups, so that the data acquisition and processing time is reduced.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a higher mathematics probability demonstration device according to the present invention;
FIG. 2 is a partial enlarged view of an information acquisition mechanism of the advanced math probability demonstration apparatus according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of a base of the advanced math probability demonstration apparatus according to the present invention;
FIG. 4 is a schematic view of the internal structure of a shield of the advanced mathematic probability demonstration apparatus according to the present invention;
fig. 5 is a partial side view of a control panel of a higher math probability demonstration apparatus according to the present invention.
Wherein, 1, a base; 2. an information acquisition mechanism; 3. a probability experiment mechanism; 4. a drive mechanism; 5. a control mechanism; 6. a connecting shaft; 7. a rope belt; 8. supporting legs; 9. a non-slip mat; 201. a connecting plate; 202. a slide hole; 203. a screw hole; 204. positioning a knob; 205. a square bar; 206. a rotating rod; 207. a camera; 208. a connecting frame; 209. a limiting plate; 301. a separation cover; 302. a dice; 303. a moving block; 304. a baffle plate; 305. a drive rod; 306. a return spring; 307. mounting a plate; 308. a magnetic plate; 401. an electromagnet; 402. a partition plate; 501. a control panel; 502. a controller; 503. a display screen; 504. a control key; 505. and a signal interface.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-5, an embodiment of the present invention provides a higher math probability demonstration apparatus, which includes a base 1, an information acquisition mechanism 2 is disposed on a surface of the base 1, the information acquisition mechanism 2 includes a connection board 201, a surface of the connection board 201 is fixedly connected to the base 1, a surface of the connection board 201 is provided with a sliding hole 202, an inner wall of the sliding hole 202 is provided with a screw hole 203, an inner wall of the screw hole 203 is in threaded connection with a positioning knob 204, one end of the positioning knob 204 is fixedly connected with an anti-slip contact, when the anti-slip contact is compressed, an elastic force is generated to increase a friction force between the anti-slip contact and a square rod 205, so as to increase a fixing effect of a height of the square rod 205, an inner wall of the sliding hole 202 is in sliding connection with the square rod 205, one end of the square rod 205 is rotatably connected to a rotation rod 206 through a damping rotation shaft, an inner wall of the rotation rod 206 is fixedly connected to a camera 207, the square rod 205 can slide up and down in the sliding hole 202, the positioning knob 204 is screwed down, so that one end of the positioning knob 204 presses the square rod 205, the position of the square rod 205 is fixed, the height of the rotating rod 206 is fixed, the camera 207 is rotated by rotating the rotating rod 206, the camera 207 can be placed right above the probability experiment mechanism 3, and the camera 207 is used for taking a picture to realize information acquisition;
the probability experiment mechanism 3 is arranged on the upper surface of the base 1, the driving mechanism 4 is arranged on the inner bottom wall of the base 1, the probability experiment mechanism 3 comprises a separation cover 301, the separation cover 301 is made of transparent materials, the surface of the separation cover 301 is fixedly connected with the base 1, dice 302 are arranged inside the separation cover 301, the separation cover 301 prevents the dice 302 from being lost, the inner wall of the separation cover 301 is connected with a moving block 303 in a sliding mode, the surface of the moving block 303 is fixedly connected with a baffle 304, the lower surface of the baffle 304 is fixedly connected with a driving rod 305, the surface of the driving rod 305 is provided with a reset spring 306, one end of the driving rod 305 is fixedly connected with a mounting plate 307, the lower surface of the mounting plate 307 is inlaid with a magnetic plate 308, the driving mechanism 4 comprises an electromagnet 401, the inner wall of the base 1 is fixedly connected with a partition plate 402, the surface of the partition plate 402 is provided with a through hole, the partition plate 402 is connected with the driving rod 305 in a sliding mode through the through hole, the electromagnet 401 is electrified, the electromagnet 401 and the magnetic plate 308 are attracted to each other, the driving rod 305 is further pulled to move downwards, the moving block 303 moves downwards, the reset spring 306 is compressed to store energy, the electromagnet 401 is powered off after the driving rod 305 does not move, the reset spring 306 drives the moving block 303 to reset, the dice 302 are thrown upwards and thrown, and the base 1 and the partition plate 402 are made of magnetic isolation materials;
the surface of the base 1 is provided with a control mechanism 5, the control mechanism 5 comprises a control panel 501, a timer and a circuit board are arranged inside the control panel 501, the control panel 501 is electrically connected with the information acquisition mechanism 2, the inner wall of the base 1 is fixedly connected with a controller 502, the controller 502 is electrically connected with the control panel 501, the controller 502 is electrically connected with the camera 207, the surface of the control panel 501 is provided with a display screen 503, a control key 504 is arranged on the surface of the control panel 501 and below the display screen 503, the control panel 501 starts the controller 502 through the control key 504, and the camera is controlled by the controller 502 to shoot or the electromagnet 401 is powered on or powered off;
the surface of the base 1 is rotatably connected with a connecting shaft 6, the surface of the connecting shaft 6 is fixedly connected with rope belts 7, the rope belts 7 are symmetrically distributed on the front side and the back side of the base 1, and the device is convenient to carry by the rope belts 7;
the surface of the camera 207 is fixedly connected with a connecting frame 208, the inner wall of the connecting frame 208 is rotatably connected with the square rod 205 through a bearing, and the connecting frame 208 improves the stability and firmness of the connection of the camera 207;
a limit plate 209 is fixedly connected to one end of the square rod 205, which is far away from the rotating rod 206, the limit plate 209 is in a circular plate shape, and the limit plate 209 prevents the square rod 205 from being separated from the connecting plate 201;
the lower surface of the base 1 is fixedly connected with a supporting leg 8, the lower surface of the supporting leg 8 is fixedly connected with an anti-slip mat 9, the surface of the supporting leg 8 is fixedly connected with a connecting rib, the connecting rib improves the firmness of the supporting leg 8, and the anti-slip mat 9 improves the friction force;
the surface of control panel 501 is provided with signal interface 505, and the quantity of signal interface 505 is a plurality of, and the model differs, and the multi-media display screen or the projecting apparatus of adaptable different models show the photo that camera 207 shot through multi-media display screen or projecting apparatus, are convenient for the student and watch.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a higher mathematics probability presentation device, includes base (1), its characterized in that: the surface of base (1) is provided with information acquisition mechanism (2), the upper surface of base (1) is provided with probability experiment mechanism (3), the inner diapire of base (1) is provided with actuating mechanism (4), the surface of base (1) is provided with control mechanism (5), the surface rotation of base (1) is connected with connecting axle (6), the fixed surface of connecting axle (6) is connected with fag end (7), fag end (7) symmetric distribution is at the positive and negative of base (1).
2. The higher math probability presentation device of claim 1, wherein: information acquisition mechanism (2) are including connecting plate (201), the surface and base (1) fixed connection of connecting plate (201), sliding hole (202) have been seted up on the surface of connecting plate (201), screw (203) have been seted up to the inner wall of sliding hole (202), the inner wall threaded connection of screw (203) has location knob (204), the one end fixedly connected with anti-skidding contact of location knob (204), the inner wall sliding connection of sliding hole (202) has square beam (205), the one end of square beam (205) is rotated through the damping pivot and is connected with bull stick (206), the inner wall fixedly connected with camera (207) of bull stick (206).
3. The higher math probability presentation device of claim 2, wherein: the surface of the camera (207) is fixedly connected with a connecting frame (208), and the inner wall of the connecting frame (208) is rotatably connected with the square rod (205) through a bearing.
4. The higher math probability presentation device of claim 2, wherein: one end of the square rod (205) far away from the rotating rod (206) is fixedly connected with a limiting plate (209), and the limiting plate (209) is in a circular plate shape.
5. The higher math probability presentation device of claim 1, wherein: probability experiment mechanism (3) are including separating cover (301), the material that separates cover (301) is transparent material, the surface and base (1) fixed connection that separate cover (301), the inside that separates cover (301) is provided with dice (302), the inner wall sliding connection that separates cover (301) has movable block (303), the fixed surface of movable block (303) is connected with baffle (304), the fixed surface of baffle (304) is connected with actuating lever (305), the surface of actuating lever (305) is provided with reset spring (306), the one end fixedly connected with mounting panel (307) of actuating lever (305), the lower surface mosaic of mounting panel (307) has magnetic sheet (308).
6. The higher math probability presentation device of claim 5, wherein: the driving mechanism (4) comprises an electromagnet (401), a partition plate (402) is fixedly connected to the inner wall of the base (1), a through hole is formed in the surface of the partition plate (402), the partition plate (402) is connected with the driving rod (305) in a sliding mode through the through hole, and the base (1) and the partition plate (402) are made of magnetic isolating materials.
7. The higher math probability presentation device of claim 1, wherein: control mechanism (5) include control panel (501), control panel (501) and information acquisition mechanism (2) electric connection, the inner wall fixedly connected with controller (502) of base (1), controller (502) and control panel (501) electric connection, control panel (501)'s surface is provided with signal interface (505).
8. The higher math probability presentation device of claim 7, wherein: the surface of control panel (501) is provided with display screen (503), and control button (504) is provided with on the surface of control panel (501) and is located display screen (503) below.
9. The higher math probability presentation device of claim 1, wherein: the lower fixed surface of base (1) is connected with supporting leg (8), the lower fixed surface of supporting leg (8) is connected with slipmat (9), the fixed surface of supporting leg (8) is connected with the splice bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111142517.0A CN113744603A (en) | 2021-09-28 | 2021-09-28 | Higher mathematics probability presentation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111142517.0A CN113744603A (en) | 2021-09-28 | 2021-09-28 | Higher mathematics probability presentation device |
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| CN113744603A true CN113744603A (en) | 2021-12-03 |
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| CN202111142517.0A Pending CN113744603A (en) | 2021-09-28 | 2021-09-28 | Higher mathematics probability presentation device |
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| CN206388399U (en) * | 2016-12-15 | 2017-08-08 | 大庆师范学院 | Higher mathematics Probability Teaching apparatus for demonstrating |
| CN108230834A (en) * | 2018-01-25 | 2018-06-29 | 黄淮学院 | A kind of higher mathematics demonstration device for probability |
| CN108961939A (en) * | 2018-08-27 | 2018-12-07 | 岳广琴 | A kind of higher mathematics demonstration device for probability |
| CN208422193U (en) * | 2018-03-14 | 2019-01-22 | 马羽凡 | A kind of mathematical education probabilistic model teaching aid |
| CN211319531U (en) * | 2020-03-20 | 2020-08-21 | 湖北师范大学 | Mathematical statistics presentation device |
| CN111901492A (en) * | 2020-07-20 | 2020-11-06 | 深圳市深国图信息技术有限公司 | High appearance of shooing based on image recognition |
| CN111932993A (en) * | 2020-08-11 | 2020-11-13 | 杨绪全 | Dice and probability demonstration device using dice |
-
2021
- 2021-09-28 CN CN202111142517.0A patent/CN113744603A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010067526A1 (en) * | 2008-12-09 | 2010-06-17 | Aoyama Masuo | Moving body counter displaying number with moving bodies themselves |
| CN104715655A (en) * | 2015-04-01 | 2015-06-17 | 白依川 | Advanced mathematics probability presentation device |
| CN206388399U (en) * | 2016-12-15 | 2017-08-08 | 大庆师范学院 | Higher mathematics Probability Teaching apparatus for demonstrating |
| CN108230834A (en) * | 2018-01-25 | 2018-06-29 | 黄淮学院 | A kind of higher mathematics demonstration device for probability |
| CN208422193U (en) * | 2018-03-14 | 2019-01-22 | 马羽凡 | A kind of mathematical education probabilistic model teaching aid |
| CN108961939A (en) * | 2018-08-27 | 2018-12-07 | 岳广琴 | A kind of higher mathematics demonstration device for probability |
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| CN111932993A (en) * | 2020-08-11 | 2020-11-13 | 杨绪全 | Dice and probability demonstration device using dice |
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Application publication date: 20211203 |