CN209168486U - A kind of mathematical education demonstration device for probability - Google Patents
A kind of mathematical education demonstration device for probability Download PDFInfo
- Publication number
- CN209168486U CN209168486U CN201820797391.8U CN201820797391U CN209168486U CN 209168486 U CN209168486 U CN 209168486U CN 201820797391 U CN201820797391 U CN 201820797391U CN 209168486 U CN209168486 U CN 209168486U
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- rotation case
- rotation
- rotating disc
- fixedly connected
- stock column
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Abstract
The utility model discloses a kind of mathematical education demonstration device for probabilities, including casing assembly, driving assembly and guard assembly, the casing assembly includes reclaiming plate, goes out stock column, support column, feed pipe and rotation case, the support column is located at the lower end of the rotation case, and it is fixedly connected with the rotation case, the feed pipe is located at the upper end of the rotation case, and it is fixedly connected with the rotation case, the stock column out is located at the lower end of the rotation case, and close to the rear of the support column；Motor rotation drives rotating disc to be rotated, after motor stops, several beads are random distribution, striker plate is opened, because rotating disc is set as the specification with tilt angle, small club is fallen from discharge port by gravity, successively come may be implemented conventional cloth bag take bead situation, there are two discharge ports, opens simultaneously two striker plates, then the situation for disposably taking out two balls in mathematics from cloth bag may be implemented.
Description
Technical field
The utility model belongs to teaching equipment technical field, and in particular to a kind of mathematical education demonstration device for probability.
Background technique
Probability calculus machine can demonstrate out the event for taking out two beads in mathematics from cloth bag simultaneously, help student more
Getting information about probability, a situation arises.
Teacher carries out mathematical probabilities when demonstrating, the probabilistic knowledge high to level of abstraction height and difficulty do not understand on side
It helps, student is difficult to grasp relevant knowledge.
Utility model content
The purpose of this utility model is to provide a kind of mathematical education demonstration device for probabilities, to solve in above-mentioned background technique
When the teacher of proposition carries out mathematical probabilities and demonstrates, the probabilistic knowledge high to level of abstraction height and difficulty do not understand on side
It helps, student is difficult to the problem of grasping relevant knowledge.
To achieve the above object, the utility model provides the following technical solutions: a kind of mathematical education demonstration device for probability, packet
Casing assembly, driving assembly and guard assembly are included, the casing assembly includes reclaiming plate, goes out stock column, support column, feed pipe and turn
Dynamic shell, the support column is located at the lower end of the rotation case, and is fixedly connected with the rotation case, the feed pipe position
It is fixedly connected in the upper end of the rotation case, and with the rotation case, the stock column out is located under the rotation case
End, and close to the rear of the support column, the stock column out is fixedly connected with the rotation case, and the reclaiming plate is located at described
The left surface of stock column out, and with it is described go out stock column rotation connection, the driving component includes rotating disc, motor, connecting shaft and small
Ball, the rotating disc is located at the inside of the rotation case, and is rotatablely connected with the rotation case, and the motor is located at described
The lower end of rotation case, and close to the left of the stock column out, and connect with the turn disc, one end of the connecting shaft
It is fixedly connected with the rotating disc, the other end of the connecting shaft is fixedly connected with the output end of the motor, the bead position
In the inside of the rotation case, and close to the upper end of the rotating disc, the bead and the rotating disc are detachably connected, institute
It states rotating disc and external power supply is electrically connected, the guard assembly includes striker plate, sand hill pad and limit plate, the striker plate position
It is rotatablely connected in the lateral wall of the rotation case, and with the rotation case by shaft, the sand hill pad goes out described in
The upper surface of flitch, and being fixedly connected with the reclaiming plate, the limit plate extend transversely through the lateral wall of the feed pipe, and with
The feed pipe is slidably connected.
Preferably, the output end of the motor is fixedly connected with the rotating disc by the connecting shaft.
Preferably, the lateral wall of the rotation case offers discharge port, and the quantity of the discharge port is two, and two
The discharge port is symmetrically distributed in the lateral wall of the rotation case.
Preferably, the quantity of the support column is four, and four support columns are symmetrically distributed in outside the rotation
The lower end of shell.
Preferably, the quantity of the stock column out is two, and goes out stock column described in two and be symmetrically distributed in outside the rotation
The lower end of shell.
Preferably, the quantity of the connecting shaft is eight, and eight connecting shafts are symmetrically distributed in the motor
Output end.
Preferably, the limit plate and the feed pipe are detachably connected.
Preferably, the reclaiming plate and it is described go out stock column junction be provided with shaft, one end of the shaft and described
Reclaiming plate is fixedly connected with Ei, and the other end of the reclaiming plate is fixedly connected with the stock column out, the reclaiming plate and the discharging
Column is rotatablely connected by shaft.
Preferably, the sand hill pad and the reclaiming plate are detachably connected by screw.
Compared with prior art, the utility model has the beneficial effects that motor rotation drives rotating disc to be rotated, motor
After stopping, several beads are random distribution, striker plate are opened, because rotating disc is set as the specification with tilt angle, bead
Can be fallen from discharge port by gravity, successively come may be implemented conventional cloth bag take bead situation, there are two discharge ports, together
When open two striker plates, then the situation for disposably taking out two balls in mathematics from cloth bag may be implemented.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the connecting axle structure schematic diagram in the utility model；
Fig. 3 is the limit plate structural schematic diagram in the utility model；
In figure: 10, casing assembly；11, reclaiming plate；12, go out stock column；13, support column；14, feed pipe；15, rotation case；
20, driving assembly；21, rotating disc；22, motor；23, connecting shaft；24, bead；30, guard assembly；31, striker plate；32, sand hill
Pad；33, limit plate.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of mathematical education demonstration device for probability, including
Casing assembly 10, driving assembly 20 and guard assembly 30, casing assembly 10 include reclaiming plate 11, go out stock column 12, support column 13, into
Expects pipe 14 and rotation case 15, support column 13 is located at the lower end of rotation case 15, and is fixedly connected with rotation case 15, feed pipe
14 are located at the upper end of rotation case 15, and are fixedly connected with rotation case 15, and stock column 12 is located at the lower end of rotation case 15 out, and
Close to the rear of support column 13, stock column 12 is fixedly connected with rotation case 15 out, and reclaiming plate 11 is located at the left surface of stock column 12,
And be rotatablely connected with stock column 12 out, driving assembly 20 includes rotating disc 21, motor 22, connecting shaft 23 and bead 24, rotating disc 21
It is rotatablely connected positioned at the inside of rotation case 15, and with rotation case 15, motor 22 is located at the lower end of rotation case 15, and close
The left of stock column 12 out, and be rotatablely connected with rotating disc 21, one end of connecting shaft 23 is fixedly connected with rotating disc 21, connecting shaft 23
The other end be fixedly connected with the output end of motor 22, bead 24 is located at the inside of rotation case 15, and close to rotating disc 21
Upper end, bead 24 and rotating disc 21 are detachably connected, and rotating disc 21 and external power supply are electrically connected, and guard assembly 30 includes backgauge
Plate 31, sand hill pad 32 and limit plate 33, striker plate 31 is located at the lateral wall of rotation case 15, and passes through shaft with rotation case 15
Rotation connection, sand hill pad 32 is located at the upper surface of reclaiming plate 11, and is fixedly connected with reclaiming plate 11, limit plate 33 extend transversely through into
The lateral wall of expects pipe 14, and be slidably connected with feed pipe 14.
In the present embodiment, the output end of motor 22 is rotated, and kinetic energy is passed to rotating disc 21, rotating disc by connecting shaft 23
21 rotations make several beads in 21 random alignment of rotating disc, the model 5IK60RGU-CF of motor 22.
In the present embodiment, probability calculus machine ontology is stably placed at teaching place by teacher, and motor 22 is connected outside
Power supply pours into the bead 24 for several different colours that teaching needs in rotation case 15 from feed pipe 14, by limit plate 33
It is inserted into feed pipe 14, bead 24 is avoided to enter in feed pipe 14 in rotation, teacher closes striker plate 31, opens motor
22, kinetic energy is passed to rotating disc 21 by connecting shaft 23 by the output end rotation of motor 22, and the rotation of rotating disc 21 keeps several small
For ball 24 in 21 random alignment of rotating disc, teacher closes motor 22, when rotating disc 21 is steady, striker plate 31 is opened, because of rotating disc
21 are provided with the specification with certain tilt angle, are discharged from discharge port so bead 24 will receive gravity, to fall
On sand hill pad 32, facilitate people observe bead 24 color, if teacher need demonstrate disposably taken out from cloth bag it is two small
Two striker plates 31 can be opened simultaneously, demonstrate out above-mentioned probability problem to realize by the case where ball 24.
Further, the output end of motor 22 is fixedly connected with rotating disc 21 by connecting shaft 23.
In the present embodiment, the output end of motor 22 is rotated, and kinetic energy is passed to rotating disc 21, rotating disc by connecting shaft 23
21 rotations make several beads in 21 random alignment of rotating disc.
Further, the lateral wall of rotation case 15 offers discharge port, and the quantity of discharge port is two, and two dischargings
Mouth is symmetrically distributed in the lateral wall of rotation case 15.
In the present embodiment, because rotating disc 21 is provided with the specification with certain tilt angle, so bead 24 will receive weight
Power effect is discharged from discharge port.
Further, the quantity of support column 13 is four, and four support columns 13 are symmetrically distributed in rotation case 15
Lower end.
It, can be by two if teacher needs to demonstrate the case where disposably taking out two bead 24 from cloth bag in the present embodiment
A striker plate 31 opens simultaneously, and demonstrates out above-mentioned probability problem to realize.
Further, the quantity of stock column 12 is two out, and two go out stock column 12 and are symmetrically distributed in rotation case 15
Lower end.
In the present embodiment, two go out stock column 12 and play the role of gentle support to probability calculus machine ontology, make bead 24 can
With the random alignment on rotating disc 21, reach the accuracy of event and with probability.
Further, the quantity of connecting shaft 23 is eight, and eight connecting shafts 23 are symmetrically distributed in the output of motor 22
End.
In the present embodiment, the output end of motor 22 is rotated, and kinetic energy is passed to rotating disc 21, eight companies by connecting shaft 23
Spindle 23 keeps rotating disc 21 more steady when rotating, and keeps the result of probability calculus more accurate.
Further, limit plate 33 and feed pipe 14 are detachably connected.
In the present embodiment, teacher can be disassembled limit plate 33, so that the bead 24 of several different colours can be with
It rapidly enters in feed pipe 14, reduces the time required for unnecessary operation in teaching.
Further, the reclaiming plate 11 and junction of stock column 12 is provided with shaft out, one end of shaft and reclaiming plate 11 are solid
Surely Ei is connected, the other end of reclaiming plate 11 is fixedly connected with stock column 12 out, and reclaiming plate 11 and out stock column 12 are rotated by shaft to be connected
It connects.
In the present embodiment, reclaiming plate 11 can be turned to vertical angle by teacher, facilitate teacher by probability calculus machine ontology
It is placed.
Further, sand hill pad 32 and reclaiming plate 11 are detachably connected by screw.
In the present embodiment, if sand hill pads 32 accidental damages, bad sand hill pad 32 can be disassembled by screw, it will be complete
Good lossless sand hill pad 32 is mounted on reclaiming plate 11.
The working principle and process for using of the utility model: after the utility model installs, teacher is by probability calculus machine
Ontology is stably placed at teaching place, motor 22 is connected external power supply, the bead for several different colours that teaching is needed
24 pour into rotation case 15 from feed pipe 14, and limit plate 33 is inserted into feed pipe 14, and bead 24 is avoided to enter in rotation
In feed pipe 14, teacher closes striker plate 31, opens motor 22, and the output end rotation of motor 22 will be moved by connecting shaft 23
Rotating disc 21 can be passed to, the rotation of rotating disc 21 makes several beads 24 in 21 random alignment of rotating disc, and teacher closes motor 22,
When rotating disc 21 is steady, striker plate 31 is opened, because rotating disc 21 is provided with the specification with certain tilt angle, so bead
24 will receive gravity is discharged from discharge port, to fall on sand hill pad 32, people is facilitated to observe the color of bead 24, if
Teacher needs to demonstrate the case where disposably taking out two bead 24 from cloth bag, two striker plates 31 can be opened simultaneously, from
And realize and demonstrate out above-mentioned probability problem, after work, teacher cuts off external power supply, will turn to reclaiming plate 11 vertical
Squareness, and probability calculus machine ontology is placed on to place suitable safely, facilitate teacher to use next time.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (9)
1. a kind of mathematical education demonstration device for probability, it is characterised in that: including casing assembly (10), driving assembly (20) and protection
Component (30), the casing assembly (10) include reclaiming plate (11), go out stock column (12), support column (13), feed pipe (14) and turn
Dynamic shell (15), the support column (13) are located at the lower end of the rotation case (15), and fixed with the rotation case (15)
Connection, the feed pipe (14) is located at the upper end of the rotation case (15), and is fixedly connected with the rotation case (15), institute
The lower end that stock column (12) are located at the rotation case (15) is stated out, and close to the rear of the support column (13), the stock column out
(12) be fixedly connected with the rotation case (15), the reclaiming plate (11) be located at it is described go out stock column (12) left surface, and with
It is described go out stock column (12) rotation connection, the driving component (20) includes rotating disc (21), motor (22), connecting shaft (23) and small
Ball (24), the rotating disc (21) is located at the inside of the rotation case (15), and is rotatablely connected with the rotation case (15),
The motor (22) is located at the lower end of the rotation case (15), and close to it is described go out stock column (12) left, and with described turn
Moving plate (21) rotation connection, one end of the connecting shaft (23) are fixedly connected with the rotating disc (21), the connecting shaft (23)
The other end be fixedly connected with the output end of the motor (22), the bead (24) is located at the interior of the rotation case (15)
Portion, and close to the upper end of the rotating disc (21), the bead (24) and the rotating disc (21) are detachably connected, the rotation
Disk (21) and external power supply are electrically connected, and the guard assembly (30) includes striker plate (31), sand hill pad (32) and limit plate
(33), the striker plate (31) is located at the lateral wall of the rotation case (15), and passes through shaft with the rotation case (15)
Rotation connection, the sand hill pad (32) is located at the upper surface of the reclaiming plate (11), and is fixedly connected with the reclaiming plate (11),
The limit plate (33) extends transversely through the lateral wall of the feed pipe (14), and is slidably connected with the feed pipe (14).
2. a kind of mathematical education demonstration device for probability according to claim 1, it is characterised in that: the motor (22) it is defeated
Outlet is fixedly connected with the rotating disc (21) by the connecting shaft (23).
3. a kind of mathematical education demonstration device for probability according to claim 1, it is characterised in that: the rotation case (15)
Lateral wall offer discharge port, the quantity of the discharge port is two, and two discharge ports be symmetrically distributed in it is described
The lateral wall of rotation case (15).
4. a kind of mathematical education demonstration device for probability according to claim 1, it is characterised in that: the support column (13)
Quantity is four, and four support columns (13) are symmetrically distributed in the lower end of the rotation case (15).
5. a kind of mathematical education demonstration device for probability according to claim 1, it is characterised in that: stock column (12) out
Quantity is two, and goes out the lower end that stock column (12) are symmetrically distributed in the rotation case (15) described in two.
6. a kind of mathematical education demonstration device for probability according to claim 1, it is characterised in that: the connecting shaft (23)
Quantity is eight, and eight connecting shafts (23) are symmetrically distributed in the output end of the motor (22).
7. a kind of mathematical education demonstration device for probability according to claim 1, it is characterised in that: the limit plate (33) and
The feed pipe (14) is detachably connected.
8. a kind of mathematical education demonstration device for probability according to claim 1, it is characterised in that: the reclaiming plate (11) and
The junction of stock column (12) out is provided with shaft, and one end of the shaft is fixedly connected with Ei with the reclaiming plate (11), institute
The other end for stating reclaiming plate (11) is fixedly connected with stock column (12) out, and the reclaiming plate (11) and described stock column (12) out are logical
Cross shaft rotation connection.
9. a kind of mathematical education demonstration device for probability according to claim 1, it is characterised in that: the sand hill pad (32) and
The reclaiming plate (11) is detachably connected by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820797391.8U CN209168486U (en) | 2018-05-25 | 2018-05-25 | A kind of mathematical education demonstration device for probability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820797391.8U CN209168486U (en) | 2018-05-25 | 2018-05-25 | A kind of mathematical education demonstration device for probability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209168486U true CN209168486U (en) | 2019-07-26 |
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ID=67326696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820797391.8U Expired - Fee Related CN209168486U (en) | 2018-05-25 | 2018-05-25 | A kind of mathematical education demonstration device for probability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209168486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113658488A (en) * | 2021-09-06 | 2021-11-16 | 安徽理工大学 | Probability theory experiment model teaching aid |
-
2018
- 2018-05-25 CN CN201820797391.8U patent/CN209168486U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113658488A (en) * | 2021-09-06 | 2021-11-16 | 安徽理工大学 | Probability theory experiment model teaching aid |
| CN113658488B (en) * | 2021-09-06 | 2023-01-17 | 安徽理工大学 | Probability theory experiment model teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190726 Termination date: 20200525 |