CN206489791U - Embedded Probability Teaching teaching aid - Google Patents
Embedded Probability Teaching teaching aid Download PDFInfo
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- CN206489791U CN206489791U CN201621248530.9U CN201621248530U CN206489791U CN 206489791 U CN206489791 U CN 206489791U CN 201621248530 U CN201621248530 U CN 201621248530U CN 206489791 U CN206489791 U CN 206489791U
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- runner
- ratchet
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- electromagnet
- case lid
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Abstract
The utility model discloses embedded Probability Teaching teaching aid, it is related to teaching apparatus for mathematics field.Including casing, case lid, electromagnet, speeder, runner and axle；Casing is installed above case lid；Be mounted side by side in casing it is equally spaced on two axles, axle runner is installed, casing one end is provided with speeder；Case lid upper surface is provided with the window corresponding with runner, and each runner is to that should have a window, and each window side is provided with an electromagnet；Circumferentially outer surface is provided with six to eight embedded grooves to each runner, and each embedded groove has been embedded in embedded display iron plate；Roller centre internal surface of hole is provided with ratchet；Ratchet and spring leaf are installed, spring leaf is resisted against on ratchet on axle, ratchet is meshed with the ratchet in runner；Case lid upper surface motor touching switch and electromagnet touching switch.Solving existing probability learning combined teaching aid needs manual actuation roller to rotate, and action dynamics differs, the problem of service speed is also slow.
Description
Technical field
The utility model is related to teaching apparatus for mathematics field, and in particular to a kind of embedded Probability Teaching teaching aid.
Background technology
Probability is because being to compare abstract concept, in College Maths probability theory course, if can be said by probabilistic model teaching aid
Solution, can make student be easier to understand and grasp.Chinese patent literature CN204215618U discloses a kind of high number probability learning group
Box-like teaching aid, the combined teaching aid of the patent at school before, teacher selects the base of respective amount according to actual needs, and adjacent
By groove one and projection one between base, or projection two is mutually inserted to combine to form whole teaching aid with groove two, afterwards by band
The displaying block of numeral or color is arranged on fluting, obtains corresponding displaying block by roller rotation, and then student can be made straight
The concept for understanding probability of sight.
Above-mentioned patent has the drawback that：Manual actuation roller is needed to rotate, action dynamics differs, and service speed is also slow.
Utility model content
The utility model provides a kind of embedded Probability Teaching teaching aid, and the utility model solves existing probability learning
Combined teaching aid needs manual actuation roller to rotate, and action dynamics differs, the problem of service speed is also slow.
To solve the above problems, the utility model is adopted the following technical scheme that：Embedded Probability Teaching teaching aid, including case
Body, case lid, electromagnet, speeder, runner and axle；Casing is installed above case lid；Two axles, axle have been mounted side by side in casing
Above equally spaced to be provided with runner, casing one end is provided with speeder；Case lid upper surface is provided with the window corresponding with runner
Mouthful, each runner is to that should have a window, and each window side is provided with an electromagnet, and runner top edge is arranged at window
In；Circumferentially outer surface is provided with six to eight embedded grooves to each runner, and each embedded groove has been embedded in embedded display iron plate；
Roller centre internal surface of hole is provided with ratchet；Ratchet and spring leaf are installed, spring leaf is resisted against on ratchet on axle, ratchet is with turning
Ratchet in wheel is meshed；Case lid upper surface has the motor touching switch of control speeder and the electromagnet of control electromagnet to touch
Touch switch.
The utility model uses dynamic speeder, presses motor touching switch, motor-driven gear rotate and then
Runner is driven to rotate, action dynamics is identical, and service speed is fast.When teacher needs to demonstrate the probability of a certain numeral or color,
The embedded display iron plate of the numeral or color is installed in the embedded groove of wheel surface；Then, opened by lower electromagnet touching
Close, electromagnet obtains electric, embedded display iron plate, which is held, to be positioned at window, and accurate positioning, locating speed is fast.The utility model
With quick action, flexible and convenient operation, advantage simple in construction.
Brief description of the drawings
Fig. 1 is the schematic diagram that the utility model opens case lid；
Fig. 2 is the schematic diagram that the utility model closes case lid；
Fig. 3 is the A-A cutaway view Amplified images in Fig. 1；
Fig. 4 is longitudinal cutaway view Amplified image of runner.
Symbol description in figure：Casing 1, case lid 2, window 2-1, electromagnet 3, electromagnet touching switch 3-1, speeder 4,
Motor 4-1, driving gear 4-2, speed increasing gear 4-3, driven gear 4-4, motor touching switch 4-5, runner 5, embedded display
Iron plate 5-1, ratchet 5-2, axle 6, ratchet 6-1, spring leaf 6-2.
Embodiment
The utility model is described in detail with optimal embodiment below.
As Figure 1-4, embedded Probability Teaching teaching aid, including casing 1, case lid 2, electromagnet 3, speeder 4, turn
Wheel 5 and axle 6；Casing 1 is installed above case lid；It has been mounted side by side in casing 1 and equally spaced on two axles 6, axle 6 runner has been installed
5, it can be needed to increase or decrease the quantity of runner 5 according to teachers ' teaching；The one end of casing 1 is provided with speeder 4, speeder 4
Including motor 4-1, driving gear 4-2, speed increasing gear 4-3 and driven gear 4-4；Motor 4-1 right side, motor 4- in casing 1
1 output end is connected with driving gear 4-2, and two external parts of axle 6 are separately installed with a driven gear 4-4, two driven gears
4-4 is meshed respectively with two speed increasing gear 4-3, and two speed increasing gear 4-3 are meshed with driving gear 4-2；The upper surface of case lid 2
The window 2-1 corresponding with runner 5 is provided with, 5 pairs of each runner there should be a window 2-1, and each window 2-1 sides are pacified
Equipped with an electromagnet 3, the top edge of runner 5 is arranged in window 2-1；Circumferentially outer surface is provided with six to eight to each runner 5
Individual embedded groove, each embedded groove has been embedded on embedded display iron plate 5-1, embedded display iron plate 5-1 with numeral or face
Color；The centre bore inner surface setting of runner 5 has ratchet 5-2；Ratchet 6-1 and spring leaf 6-2 are installed, spring leaf 6-2 is supported on axle 6
Lean against on ratchet 6-1, ratchet 6-1 is pressed to ratchet 5-2 and then both is realized engagement, ratchet 6-1 and runner 5 by spring leaf 6-2
Interior ratchet 5-2 is meshed；The motor touching switch 4-5 and control electromagnet 3 that there is controlled motor 4-1 the upper surface of case lid 2 are used
Electromagnet touching switch 3-1.
Operation principle of the present utility model：Motor touching switch is pressed, motor drives the gear in speeder to be turned
Dynamic, runner is rotated, and the ratchet in runner is meshed with the ratchet on axle, and motor only gives one initial speed of runner；Unclamp electricity
After machine touching switch, motor stops, runner inertial rotation, and now ratchet is slided in ratchet surface, and the rotation of runner is not influenceed；Press
Lower electromagnet touching switch, electromagnet, which is powered, produces magnetic force, and a certain embedded display iron plate is held and is positioned at window by electromagnet
Place.
Electromagnet is switched on producing a kind of device of electromagnetism.Outside winding and its power of iron core match it is conductive around
Group, this coil alived has magnetic as magnet, and it is also referred to as electromagnet.Bar shaped generally is made or ungulate in it
Shape, so that iron core is more prone to magnetization.In addition, in order that electromagnet powers off demagnetization immediately, often using the faster soft iron of demagnetization
Or silicon steel material is manufactured.Such electromagnet is magnetic when being powered, and magnetic just disappears therewith after power-off.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate the utility model example,
And the not restriction to embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And thus
Among the obvious changes or variations amplified out is still in protection domain of the present utility model.
Claims (2)
1. embedded Probability Teaching teaching aid, it is characterised in that including casing, case lid, electromagnet, speeder, runner and axle；
Casing is installed above case lid；Be mounted side by side in casing it is equally spaced on two axles, axle runner is installed, casing one end is installed
There is speeder；Case lid upper surface is provided with the window corresponding with runner, and each runner is to that should have a window, each window
Mouth side is provided with an electromagnet, and runner top edge is arranged in window；Circumferentially outer surface is provided with six and arrived each runner
Eight embedded grooves, each embedded groove has been embedded in embedded display iron plate；Roller centre internal surface of hole is provided with ratchet；Pacify on axle
Equipped with ratchet and spring leaf, spring leaf is resisted against on ratchet, and ratchet is meshed with the ratchet in runner；There is control case lid upper surface
The motor touching switch of speeder and the electromagnet touching switch of control electromagnet.
2. embedded Probability Teaching teaching aid as claimed in claim 1, it is characterised in that speeder includes motor, driving tooth
Wheel, speed increasing gear and driven gear；Motor output end is connected with driving gear, two axle external parts be separately installed with one it is driven
Gear, two driven gears are meshed respectively with two speed increasing gears, and two speed increasing gears are meshed with driving gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621248530.9U CN206489791U (en) | 2016-11-15 | 2016-11-15 | Embedded Probability Teaching teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621248530.9U CN206489791U (en) | 2016-11-15 | 2016-11-15 | Embedded Probability Teaching teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206489791U true CN206489791U (en) | 2017-09-12 |
Family
ID=59768348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621248530.9U Active CN206489791U (en) | 2016-11-15 | 2016-11-15 | Embedded Probability Teaching teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206489791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147496A (en) * | 2018-10-31 | 2019-01-04 | 郑州职业技术学院 | A kind of Teaching Probability Theory and Mathematical Statistics demonstrating model |
| CN112509421A (en) * | 2020-12-01 | 2021-03-16 | 榆林学院 | National music teaching music book demonstration board |
-
2016
- 2016-11-15 CN CN201621248530.9U patent/CN206489791U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109147496A (en) * | 2018-10-31 | 2019-01-04 | 郑州职业技术学院 | A kind of Teaching Probability Theory and Mathematical Statistics demonstrating model |
| CN109147496B (en) * | 2018-10-31 | 2020-09-04 | 瑞安市志普科技有限公司 | Probability statistics teaching demonstration model |
| CN112509421A (en) * | 2020-12-01 | 2021-03-16 | 榆林学院 | National music teaching music book demonstration board |
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