CN207367441U - A kind of mathematical probabilities demonstration teaching aid - Google Patents
A kind of mathematical probabilities demonstration teaching aid Download PDFInfo
- Publication number
- CN207367441U CN207367441U CN201720462100.5U CN201720462100U CN207367441U CN 207367441 U CN207367441 U CN 207367441U CN 201720462100 U CN201720462100 U CN 201720462100U CN 207367441 U CN207367441 U CN 207367441U
- Authority
- CN
- China
- Prior art keywords
- fixed
- fixedly connected
- end surface
- top end
- bucket
- 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
Landscapes
- Toys (AREA)
Abstract
A kind of mathematical probabilities demonstration teaching aid, belongs to the special probability equipment technical field of mathematical education, including fixes bottom plate, fixed supported slab, fixes vertical bucket, connecting conduit, by pressuring gasbag, fixed pillar, fixed baffle, it is characterised in that：It is symmetrical at top end surface rearward edges on the fixed bottom plate to be respectively fixedly connected with fixed supported slab, fixed vertical bucket is fixedly connected between two fixed supported slabs at inner side top end surface top, the fixation founds top end surface circle centre position under bucket and is fixedly connected with connecting conduit, top end surface circle centre position is fixedly connected with by pressuring gasbag after the connecting conduit, the fixation stands barrel side top end surface rear middle and is fixedly connected with fixed pillar, before the fixed pillar fixed baffle is fixedly connected with top end surface top edges, coin device elastic force dynamics is thrown away in the grasp of teacher personnel storehouse prevents that coin pop-up distance is remote, and teacher personnel quickly can get up coin collection.
Description
Technical field
The utility model belongs to teaching equipment technology field, and in particular to a kind of mathematical probabilities demonstration teaching aid.
Background technology
In long-term working practice, teacher personnel commonly throw away coin dress during the Probability Experiments of coin are thrown away in demonstration
Put elastic force dynamics and be unable to control and be easy to eject on coin distant, and need the plenty of time to be received when arranging coin
Collection and statistics, it has not been convenient to which teacher personnel operate with and reduce conventional efficient.
The content of the invention
The purpose of this utility model is：In order to solve teacher personnel during the Probability Experiments of coin are thrown away in demonstration, teacher
Coin device elastic force dynamics is thrown away in the grasp of personnel storehouse prevents that coin pop-up distance is remote, and teacher personnel quickly can receive coin
Collection gets up, and facilitates teacher personnel to operate with and improve conventional efficient, its technical solution is as follows：
A kind of mathematical probabilities demonstration teaching aid, it includes fixed bottom plate 1, fixed supported slab 2, fixes vertical bucket 3, connecting conduit 4, presses
Pressuring gasbag 5, fixed pillar 6, fixed baffle 7, it is characterised in that：On the fixed bottom plate 1 at top end surface rearward edges or so
It is symmetrical to be respectively fixedly connected with fixed supported slab 2, between two fixed supported slabs 2 above the top end surface of inner side at be fixedly connected with
Vertical bucket 3 calmly, the fixation found 3 times top end surface circle centre positions of bucket and are fixedly connected with connecting conduit 4, top after the connecting conduit 4
Surface circle centre position is fixedly connected with by pressuring gasbag 5, and the fixation stands 3 side top end surface rear middle of bucket and is fixedly connected with fixation
Pillar 6, is fixedly connected with fixed baffle 7 before the fixed pillar 6, the fixed supported slab 2 is vertical at top end surface top edges
It is fixedly connected on 1 upper surface of fixed bottom plate, and it is in 160 ° of angles that bucket 3 and the fixed supported slab 2 are found in the fixation, the fixation
It is in 30 ° of angles that pillar 6 founds bucket 3 with the fixation, and the fixed pillar 6 and the fixed baffle 7 are in 30 ° of angles, and bucket 3 is found in the fixation
Lower top end surface circle centre position is equipped with through hole, and the connecting conduit 4 is fixed and is inserted into inside the through hole, and bucket is found in the fixation
3 every with the connecting conduit 4 with described by interlinking inside pressuring gasbag 5.
The beneficial effects of the utility model are：In order to solve teacher personnel during the Probability Experiments of coin are thrown away in demonstration,
Teacher personnel storehouse, which is grasped, throws away coin device elastic force dynamics and prevents that coin pop-up distance is remote, and teacher personnel can quickly will be firmly
Coin collects, and facilitates teacher personnel to operate with and improve conventional efficient.
Brief description of the drawings：
Fig. 1 is the overall structure diagram of the utility model.
Embodiment：
With reference to a kind of mathematical probabilities demonstration teaching aid described in Fig. 1, it include fixed bottom plate 1, fixed supported slab 2, fixed vertical bucket 3,
Connecting conduit 4, by pressuring gasbag 5, fixed pillar 6, fixed baffle 7, it is characterised in that：On the fixed bottom plate 1 after top end surface
It is symmetrical at method, edge to be respectively fixedly connected with fixed supported slab 2, between two fixed supported slabs 2 above the top end surface of inner side at
Fixed vertical bucket 3 is fixedly connected with, the fixation founds 3 times top end surface circle centre positions of bucket and is fixedly connected with connecting conduit 4, the connection
Top end surface circle centre position is fixedly connected with by pressuring gasbag 5 after conduit 4, and the fixation is stood 3 side top end surface rear middle of bucket and consolidated
Surely it is connected with fixed pillar 6, fixed baffle 7 is fixedly connected with top end surface top edges before the fixed pillar 6, it is described solid
Determine support plate 2 and be vertically fixedly connected on 1 upper surface of fixed bottom plate, and it is in 160 ° that the fixation, which founds bucket 3 with the fixed supported slab 2,
Angle, it be in 30 ° of angles that bucket 3 is found in the fixed pillar 6 and the fixation, and the fixed pillar 6 and the fixed baffle 7 are in 30 ° of angles, institute
State fixed vertical 3 times top end surface circle centre positions of bucket and be equipped with through hole, and the connecting conduit 4 is fixed and is inserted into inside the through hole, and
The fixation stand 3 every, bucket with the connecting conduit 4 with described by interlinking inside pressuring gasbag 5.
In use, fixed bottom plate 1 is placed on laboratory table first, the fixation being then put into coin on fixed supported slab 2
In vertical bucket 3, then quickly press and caused air flow through by pressuring gasbag 5 inside the fixed vertical bucket 3 of the injection of connecting conduit 4, while air-flow will
Coin is released inside fixed vertical bucket 3, and the fixed baffle 7 when then coin rises on vertical columns 6, which blocks coin, to be prevented from rising
Height, last coin drop on fixed bottom plate 1, since fixed vertical angle between bucket 3, vertical columns 6 and fixed baffle 7 can be with
Grasp the angle that coin is released.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model, also should
Belong to the scope of protection of the utility model.
Claims (4)
1. a kind of mathematical probabilities demonstration teaching aid, including fixed bottom plate（1）, fixed supported slab（2）, fixed vertical bucket（3）, connecting conduit
（4）, by pressuring gasbag（5）, fixed pillar（6）, fixed baffle（7）, it is characterised in that：The fixed bottom plate（1）Upper top end surface
It is symmetrical at rearward edges to be respectively fixedly connected with fixed supported slab（2）, two fixed supported slabs（2）Between inner side top end surface
Fixed vertical bucket is fixedly connected with top（3）, the fixation founds bucket（3）Lower top end surface circle centre position is fixedly connected with connecting conduit
（4）, the connecting conduit（4）Top end surface circle centre position is fixedly connected with by pressuring gasbag afterwards（5）, the fixation founds bucket（3）Push up side
End surfaces rear middle is fixedly connected with fixed pillar（6）, the fixed pillar（6）Fixed at preceding top end surface top edges
It is connected with fixed baffle（7）.
A kind of 2. mathematical probabilities demonstration teaching aid according to claim 1, it is characterised in that：The fixed supported slab（2）It is vertical solid
Surely it is connected to the fixed bottom plate（1）Upper surface, and bucket is found in the fixation（3）With the fixed supported slab（2）In 160 ° of angles.
A kind of 3. mathematical probabilities demonstration teaching aid according to claim 1, it is characterised in that：The fixed pillar（6）With it is described
Fixed vertical bucket（3）In 30 ° of angles, the fixed pillar（6）With the fixed baffle（7）In 30 ° of angles.
A kind of 4. mathematical probabilities demonstration teaching aid according to claim 1, it is characterised in that：Bucket is found in the fixation（3）Lower top
Surface circle centre position is equipped with through hole, and the connecting conduit（4）Fixation is inserted into inside the through hole, and bucket is found in the fixation（3）
Every and the connecting conduit（4）It is interior to press pressuring gasbag with described（5）Inside interlinks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720462100.5U CN207367441U (en) | 2017-04-28 | 2017-04-28 | A kind of mathematical probabilities demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720462100.5U CN207367441U (en) | 2017-04-28 | 2017-04-28 | A kind of mathematical probabilities demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207367441U true CN207367441U (en) | 2018-05-15 |
Family
ID=62423725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720462100.5U Active CN207367441U (en) | 2017-04-28 | 2017-04-28 | A kind of mathematical probabilities demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207367441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108961942A (en) * | 2018-09-06 | 2018-12-07 | 安徽理工大学 | A kind of probability theory experimental model teaching aid |
| CN110570728A (en) * | 2019-09-25 | 2019-12-13 | 王旭 | Probability demonstration device |
-
2017
- 2017-04-28 CN CN201720462100.5U patent/CN207367441U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108961942A (en) * | 2018-09-06 | 2018-12-07 | 安徽理工大学 | A kind of probability theory experimental model teaching aid |
| CN110570728A (en) * | 2019-09-25 | 2019-12-13 | 王旭 | Probability demonstration device |
| CN110570728B (en) * | 2019-09-25 | 2021-10-22 | 成都大学 | Probability demonstration device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207367441U (en) | A kind of mathematical probabilities demonstration teaching aid | |
| CN202005421U (en) | Automatic telescopic bookshelf | |
| CN105665567A (en) | Automatic feeding and discharging device for window punching of tapered roller bearing retainers | |
| CN206218579U (en) | A kind of dustbin | |
| CN204246770U (en) | Utensil received by a kind of teaching shuttlecock | |
| CN206181894U (en) | Tree peony culture rack | |
| CN203935557U (en) | A kind of barbell disc laying rack | |
| CN210767852U (en) | Reusable floor slab preformed hole die | |
| CN209457390U (en) | A kind of construction mould plate supporting device | |
| CN206798172U (en) | Dry wall roof boarding inserting rack | |
| CN204815615U (en) | Table tennis catapult | |
| CN204456885U (en) | Building special machine type hopper | |
| CN204668285U (en) | A kind of Anti-fall solar panel rack | |
| CN204746882U (en) | Work piece sorting unit | |
| CN204820725U (en) | Charges of electricity voucher flattening device | |
| CN204378775U (en) | A kind of storage utensil drying umbrella | |
| CN204015552U (en) | Novel tea table | |
| CN203624314U (en) | Office waste bin | |
| CN203996945U (en) | Improved hit-gain trust device | |
| CN205932352U (en) | Automatic high -efficient vertical trigger of putting to one side of protection | |
| CN202987985U (en) | Trash can with anti-dropping net | |
| CN208726669U (en) | A kind of football collection device | |
| CN207845640U (en) | A kind of simple separator of fermentating metabolism object | |
| CN211608001U (en) | Automatic mosquito-repellent incense separation plate | |
| CN202476913U (en) | Commodity shelf |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |