CN204215621U - A kind of high number teaching probability distribution device - Google Patents
A kind of high number teaching probability distribution device Download PDFInfo
- Publication number
- CN204215621U CN204215621U CN201420749128.3U CN201420749128U CN204215621U CN 204215621 U CN204215621 U CN 204215621U CN 201420749128 U CN201420749128 U CN 201420749128U CN 204215621 U CN204215621 U CN 204215621U
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- CN
- China
- Prior art keywords
- reserve tank
- liquid reserve
- transparent cabinet
- time relay
- tube
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Abstract
A kind of high number teaching probability distribution device, belongs to teaching aid.It solve that to plant at present probability distribution electronic presentations teaching aid structure comparatively loaded down with trivial details, have inconvenience during use and for the comparatively single problem of the content of courses.Programme element: described device comprises transparent cabinet, case lid, handle, liquid reserve tank and several equidistant linear distributing demonstration tubes of dyeing liquid the base plate of transparent cabinet are fixedly equipped with, transparent cabinet is connected with case lid, case lid is provided with handle, liquid reserve tank is positioned at the rear of demonstration tube, one end of each feed tube is communicated with liquid reserve tank, the other end of each feed tube is communicated with corresponding demonstration tube, each feed tube is provided with solenoid valve, the coil of solenoid valve is connected with time relay delayed contact, the conduction time of solenoid valve is controlled by the time relay, button is connected with the coil of the time relay, button is used for coil electricity and the power-off of control time relay.The utility model is used for the teaching of high number probability distribution.
Description
Technical field
The utility model relates to a kind of high number teaching probability distribution device, belongs to teaching aid.
Background technology
In the probability learning of higher mathematics, often make because knowledge itself has abstractness student cannot form concept more intuitively to probability, and then be difficult to teaching process middle school student the feature understanding and verify probability distribution.Can bring good effect to the study of student by demonstration teaching aid, but the probability demonstration teaching aid all more complicated used at present, cannot allow student understand the concept of probability intuitively, not reach significant effect, bring inconvenience to the teaching of teacher.
China Patent Publication No. is that CN 203134203U discloses a kind of probability distribution electronic presentations teaching aid on August 14th, 2013, but this teaching aid structure is comparatively loaded down with trivial details, glass tube is frangible, and multiple bead is inconvenient to take care of, have inconvenience during use and for the content of courses comparatively single.
Utility model content
The utility model proposes high number teaching probability distribution device, to solve, to plant at present probability distribution electronic presentations teaching aid structure comparatively loaded down with trivial details, have inconvenience during use and for the comparatively single problem of the content of courses.
The utility model solution solves existing technical matters by the following technical solutions: described device comprises transparent cabinet, case lid, handle, liquid reserve tank and several equidistant linear distributing demonstration tubes of dyeing liquid the base plate of transparent cabinet are fixedly equipped with, transparent cabinet is connected with case lid, case lid is provided with handle, liquid reserve tank is positioned at the rear of demonstration tube, one end of each feed tube is communicated with liquid reserve tank, the other end of each feed tube is communicated with corresponding demonstration tube, each feed tube is provided with solenoid valve, the coil of solenoid valve is connected with time relay delayed contact, the conduction time of solenoid valve is controlled by the time relay, button is connected with the coil of the time relay, button is used for coil electricity and the power-off of control time relay.
The beneficial effects of the utility model: the utility model is easy to carry, simple to operate, intuitive is strong, is convenient to teacher's teaching.
Accompanying drawing explanation
Fig. 1 is overall perspective view of the present utility model, and Fig. 2 is transparent cabinet part-structure schematic diagram, and Fig. 3 is lid section structural representation.
Embodiment
Below in conjunction with accompanying drawing and example, the utility model is described in further detail.
Embodiment one: as Fig. 1, shown in Fig. 2 and Fig. 3, described device comprises transparent cabinet 1, case lid 2, handle 3, liquid reserve tank 4 and several equidistant linear distributing demonstration tubes 5 of dyeing liquid the base plate of transparent cabinet 1 are fixedly equipped with, transparent cabinet 1 is connected with case lid 2, case lid 2 is provided with handle 3, liquid reserve tank 4 is positioned at the rear of demonstration tube 5, one end of each feed tube 6 is communicated with liquid reserve tank 4, the other end of each feed tube 6 is communicated with corresponding demonstration tube 5, each feed tube 6 is provided with solenoid valve 7, the coil of solenoid valve 7 is connected with the time relay 8 delayed contact, the conduction time of solenoid valve 7 is controlled by the time relay 8, button 9 is connected with the coil of the time relay 8, button 9 is for the coil electricity of control time relay 8 and power-off.
Embodiment two: as shown in Figure 1, be communicated with one end of discharging tube 10 bottom liquid reserve tank 4, the other end of discharging tube 10 is located at the outside of transparent cabinet 1 through liquid reserve tank 4 and transparent cabinet 1, the top of liquid reserve tank 1 is communicated with one end of feed tube 6, and the other end of feed tube 6 is located at the outside of transparent cabinet 1 through liquid reserve tank 4 and transparent cabinet 1.Other composition and annexation identical with embodiment one.
Principle of work: when probability demonstration is carried out in teaching, teachers and students' joint activity, each student appears on the stage control knob, liquid reserve tank injects coloured liquid by feed tube and enters demonstration tube, the conduction time of solenoid valve is controlled by the time relay 8, the liquid that each student injects same volume enters demonstration tube, obtains a curve distribution image intuitively.
Claims (2)
1. one kind high several teaching probability distribution device, it is characterized in that described device comprises transparent cabinet (1), case lid (2), handle (3), liquid reserve tank (4) and several equidistant linear distributing demonstration tubes (5) of dyeing liquid the base plate of transparent cabinet (1) be fixedly equipped with, transparent cabinet (1) is connected with case lid (2), case lid (2) is provided with handle (3), liquid reserve tank (4) is positioned at the rear of demonstration tube (5), one end of each feed tube (6) is communicated with liquid reserve tank (4), the other end of each feed tube (6) is communicated with corresponding demonstration tube (5), each feed tube (6) is provided with solenoid valve (7), the coil of solenoid valve (7) is connected with the time relay (8) delayed contact, the conduction time of solenoid valve (7) is controlled by the time relay (8), button (9) is connected with the coil of the time relay (8), button (9) is for the coil electricity of control time relay (8) and power-off.
2. one according to claim 1 high number teaching probability distribution device, it is characterized in that: liquid reserve tank (4) bottom is communicated with one end of discharging tube (10), the other end of discharging tube (10) is located at the outside of transparent cabinet (1) through liquid reserve tank (4) and transparent cabinet (1), the top of liquid reserve tank 1 is communicated with one end of feed tube (6), and the other end of feed tube (6) is located at the outside of transparent cabinet (1) through liquid reserve tank (4) and transparent cabinet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749128.3U CN204215621U (en) | 2014-12-02 | 2014-12-02 | A kind of high number teaching probability distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749128.3U CN204215621U (en) | 2014-12-02 | 2014-12-02 | A kind of high number teaching probability distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204215621U true CN204215621U (en) | 2015-03-18 |
Family
ID=52984273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420749128.3U Expired - Fee Related CN204215621U (en) | 2014-12-02 | 2014-12-02 | A kind of high number teaching probability distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204215621U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105243929A (en) * | 2015-10-12 | 2016-01-13 | 北京工业大学 | Teaching device dynamically simulating curve function |
| CN105551347A (en) * | 2016-01-21 | 2016-05-04 | 殷俊峰 | Probability learning device for intelligent mathematics teaching |
-
2014
- 2014-12-02 CN CN201420749128.3U patent/CN204215621U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105243929A (en) * | 2015-10-12 | 2016-01-13 | 北京工业大学 | Teaching device dynamically simulating curve function |
| CN105551347A (en) * | 2016-01-21 | 2016-05-04 | 殷俊峰 | Probability learning device for intelligent mathematics teaching |
| CN105551347B (en) * | 2016-01-21 | 2019-02-05 | 临沂大学 | A kind of intelligent mathematical teaching probability learning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |