CN209000308U - A kind of mathematical education demonstration board - Google Patents
A kind of mathematical education demonstration board Download PDFInfo
- Publication number
- CN209000308U CN209000308U CN201820693634.3U CN201820693634U CN209000308U CN 209000308 U CN209000308 U CN 209000308U CN 201820693634 U CN201820693634 U CN 201820693634U CN 209000308 U CN209000308 U CN 209000308U
- Authority
- CN
- China
- Prior art keywords
- accommodation space
- mathematical education
- housing
- bull stick
- pull rod
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Abstract
The utility model discloses a kind of mathematical education demonstration boards, it include a plate body for having housing, and one be installed on catapult-launching gear in housing, and it is installed on the probability demonstration mechanism in housing, it include a bar shaped accommodation space in the housing, and the rectangle accommodation space that is connected to bar shaped accommodation space, the catapult-launching gear is installed in bar shaped accommodation space, the probability demonstration mechanism is installed in rectangle accommodation space, the catapult-launching gear includes an ejection pull rod, and one with the ejection-spring that offsets of ejection pull rod rear portion, and one with the bouncing ball that offsets of ejection pull rod front, probability demonstration mechanism includes the more than one bull stick being evenly distributed, and the more than one holding tank below bull stick；The mathematical education demonstration board can achieve the purpose that easy to use and generate preferable demonstrating effect.
Description
Technical field
The utility model is specifically related to a kind of mathematical education demonstration board.
Background technique
Teaching demonstration is teacher in teaching a kind of exemplary teaching method for showing student to see of object colour terms, is led to
It crosses actual observation and obtains perceptual knowledge, and confirmed, student can be made lively and intuitively learnt, deepened the impression,
Theoretical knowledge is connected with practical things, forms correct and deep concept.
When existing mathematical education, the problem of being often related to Probability, and since Probability is more abstract, Xue Shengli
Solution is got up with biggish difficulty, and deviation is easy to produce, and existing apparatus for demonstrating use is more inconvenient, and more old-fashioned and inflexible, difficult
To generate preferable demonstrating effect.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, a kind of mathematical education demonstration board is provided, with
Achieve the purpose that easy to use and generates preferable demonstrating effect.
The purpose of this utility model is achieved by the following technical programs.
A kind of mathematical education demonstration board includes that a plate body with housing and one are installed on catapult-launching gear in housing,
And it is installed on the probability demonstration mechanism in housing, it include a bar shaped accommodation space, Ji Yiyu bar shaped receiving sky in the housing
Between the rectangle accommodation space that is connected to, the catapult-launching gear is installed in bar shaped accommodation space, and the probability demonstration mechanism is installed on
In rectangle accommodation space, the catapult-launching gear include an ejection pull rod and one with ejection pull rod rear portion offset ejection-spring,
And one with the bouncing ball that offsets of ejection pull rod front, the probability demonstration mechanism include it is more than one be evenly distributed turn
Bar and the more than one holding tank below bull stick.
It is formed preferably, the bull stick is sheathed on the rotating casing above fixed link by a fixed link and one.
Preferably, being greater than elastic force in the spacing between dislocation type arrangement and each bull stick between adjacent each column bull stick
The diameter of ball.
Preferably, the diameter for accommodating bore and being greater than bouncing ball of the holding tank.
Preferably, the outside of the bar shaped accommodation space is compatible slow with size at the handle of ejection pull rod equipped with one
Punching pad.
Preferably, being provided with sphere posting port above the bar shaped accommodation space, the lower section of the holding tank is equipped with ball
Body sets outlet.
The beneficial effects of the utility model are: emitting by catapult-launching gear bouncing ball, bullet only need to be gently pulled
Penetrating pull rod can be realized the transmitting of bouncing ball, simple and convenient, be easy practical operation, while probability demonstration mechanism being cooperated to come to bouncing ball
Drop point region is counted, and bouncing ball first passes around bull stick region and carries out random movement, is finally fallen into holding tank and is fixed,
After recording setting point, outlet taking-up sphere is set from sphere and is tested repeatedly, to reach preferable demonstrating effect.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of mathematical education demonstration board of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and specifically
Embodiment, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to
It explains the utility model, is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, a kind of mathematical education demonstration board, includes that a plate body 1 for having housing 2 and one are installed on housing 2
Interior catapult-launching gear 3, and the probability being installed in housing 2 demonstrate mechanism 4, include a bar shaped accommodation space in the housing 2
21, the rectangle accommodation space 22 that Ji Yiyu bar shaped accommodation space 21 is connected to, the catapult-launching gear 3 are installed on bar shaped accommodation space 21
Interior, probability demonstration mechanism 4 is installed in rectangle accommodation space 22, the catapult-launching gear 3 include an ejection pull rod 31 and
One bouncing ball 33 to offset with the ejection ejection-spring 32 that offsets of 31 rear portion of pull rod and one with ejection 31 front of pull rod, it is described general
Rate demonstration mechanism 4 includes the more than one bull stick 41 being evenly distributed and the more than one appearance positioned at 41 lower section of bull stick
Receive slot 42, the bull stick 41 is made of the rotating casing 44 that a fixed link 43 and one are sheathed on 43 top of fixed link, each turns
The back of bar 41 is connected with a rotary electric machine matched, drives bull stick 41 to rotate by rotary electric machine, to reach random distribution
Effect, in the present embodiment, the model 42H47-1684AZK-6 of used rotary electric machine, adjacent each column bull stick 41
Between in dislocation type arrangement and each bull stick 41 between spacing be greater than bouncing ball 33 diameter, the receiving of the holding tank 42
Bore is greater than the diameter of bouncing ball 33, and the outside of the bar shaped accommodation space 21 is equipped with one and size at the handle of ejection pull rod 31
Compatible cushion 34, the top of the bar shaped accommodation space 21 are provided with sphere posting port 23, the lower section of the holding tank 42
Outlet 24 is set equipped with sphere.
Operation instruction:
When in use, bouncing ball 33 is put into first from sphere posting port 23, then pulls ejection pull rod 31, draws bullet
It is decontroled after 32 most compressed state of projectile spring, at this point, bouncing ball 33 is popped up from bar shaped accommodation space 21, into probability demonstration machine
Structure 4, and under the collision of bull stick 41, it is fallen into holding tank 42 at random, realizes Probability Teaching demonstration.
The beneficial effects of the utility model are: emitting by catapult-launching gear bouncing ball, bullet only need to be gently pulled
Penetrating pull rod can be realized the transmitting of bouncing ball, simple and convenient, be easy practical operation, while probability demonstration mechanism being cooperated to come to bouncing ball
Drop point region is counted, and bouncing ball first passes around bull stick region and carries out random movement, is finally fallen into holding tank and is fixed,
After recording setting point, outlet taking-up sphere is set from sphere and is tested repeatedly, to reach preferable demonstrating effect.
Certainly, the representative instance of above only the utility model, in addition to this, the utility model can also have other a variety of
Specific embodiment, all technical solutions formed using equivalent substitution or equivalent transformation all fall within the requires of the utility model protection
Within the scope of.
Claims (6)
- It include a plate body with housing and one is installed on catapult-launching gear in housing 1. a kind of mathematical education demonstration board, and The probability demonstration mechanism being installed in housing, it is characterised in that: include a bar shaped accommodation space and one and item in the housing The rectangle accommodation space of shape accommodation space connection, the catapult-launching gear are installed in bar shaped accommodation space, the probability demonstration machine Structure is installed in rectangle accommodation space, and the catapult-launching gear includes that an ejection pull rod and one offset with ejection pull rod rear portion Ejection-spring and one with the bouncing ball that offsets of ejection pull rod front, the probability demonstration mechanism includes more than one in equal The bull stick of even distribution and the more than one holding tank below bull stick.
- 2. a kind of mathematical education demonstration board as described in claim 1, it is characterised in that: the bull stick is by a fixed link and one The rotating casing composition being sheathed on above fixed link.
- 3. a kind of mathematical education demonstration board as described in claim 1, it is characterised in that: in dislocation between adjacent each column bull stick Spacing between formula arrangement and each bull stick is greater than the diameter of bouncing ball.
- 4. a kind of mathematical education demonstration board as described in claim 1, it is characterised in that: the receiving bore of the holding tank is greater than The diameter of bouncing ball.
- 5. a kind of mathematical education demonstration board as described in claim 1, it is characterised in that: set on the outside of the bar shaped accommodation space There is a cushion compatible with size at the handle of ejection pull rod.
- 6. a kind of mathematical education demonstration board as described in claim 1, it is characterised in that: opened above the bar shaped accommodation space There is sphere posting port, the lower section of the holding tank is equipped with sphere and sets outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820693634.3U CN209000308U (en) | 2018-05-10 | 2018-05-10 | A kind of mathematical education demonstration board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820693634.3U CN209000308U (en) | 2018-05-10 | 2018-05-10 | A kind of mathematical education demonstration board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209000308U true CN209000308U (en) | 2019-06-18 |
Family
ID=66794839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820693634.3U Expired - Fee Related CN209000308U (en) | 2018-05-10 | 2018-05-10 | A kind of mathematical education demonstration board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209000308U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111369870A (en) * | 2020-04-02 | 2020-07-03 | 黄河水利职业技术学院 | Applied mathematics probability statistics device |
| CN112382174A (en) * | 2020-11-20 | 2021-02-19 | 浙江海洋大学 | Mathematics teaching aid for mathematical thinking training |
| CN112509439A (en) * | 2020-10-30 | 2021-03-16 | 合肥正宇自动化科技有限公司 | Small ball movement science popularization demonstration device based on magnetic balls |
-
2018
- 2018-05-10 CN CN201820693634.3U patent/CN209000308U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111369870A (en) * | 2020-04-02 | 2020-07-03 | 黄河水利职业技术学院 | Applied mathematics probability statistics device |
| CN112509439A (en) * | 2020-10-30 | 2021-03-16 | 合肥正宇自动化科技有限公司 | Small ball movement science popularization demonstration device based on magnetic balls |
| CN112382174A (en) * | 2020-11-20 | 2021-02-19 | 浙江海洋大学 | Mathematics teaching aid for mathematical thinking training |
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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: 20190618 Termination date: 20200510 |