CN200950312Y - Teaching experiment instrument - Google Patents
Teaching experiment instrument Download PDFInfo
- Publication number
- CN200950312Y CN200950312Y CN 200620010513 CN200620010513U CN200950312Y CN 200950312 Y CN200950312 Y CN 200950312Y CN 200620010513 CN200620010513 CN 200620010513 CN 200620010513 U CN200620010513 U CN 200620010513U CN 200950312 Y CN200950312 Y CN 200950312Y
- Authority
- CN
- China
- Prior art keywords
- bottle
- buoyancy aid
- cylindrical shell
- liquid
- teaching experiment
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates a demonstrate equipment for teaching experiment, and in particular to a teaching experiment. The utility model provides a teaching experiment with simple structure and easy to use. The utility model contains a cylinder 1 and a floating bottle 2. Outside the floating bottle 2 provides a round balance disc 6. The teaching experiment also contains a filling pipe 3 and a vent-pipe 7. On the one end of the filling pipe reaches to the outside of the cylinder 1, and communicates with an injector 4, and equipped with a switch 5. The other end passes a hole 8 on the balance disc 6, and reaches into the floating bottle 2. One end of the vent-pipe 7 is equipped outside the cylinder 1, and the other end passes the hole 8 on the balance disc 6, and reaches into the upper part of the floating bottle 2. When adopts the structure can add/reduce the liquid for the floating bottle through filling pipe, which can make the students clearly see the process of adding/reducing the liquid for the floating bottle, and the process of liquid level fluctuating of the cylinder results from the changing of the weight.
Description
One, technical field: the utility model relates to a kind of education experiment demonstration instrument, especially a kind of teaching experimental.
Two, background technology: the student is got information about Archimedes' principle, make the weight of object that is immersed in the liquid and the relation of liquid buoyancy clear, need be by carrying out visual in image demonstration by instrument.The current experiments instrument error is bigger, and structure is loaded down with trivial details.
Three, summary of the invention: the purpose of this utility model is to provide a kind of teaching experimental simple in structure, easy to use.Teaching experimental comprises cylindrical shell 1 and buoyancy aid bottle 2, cylindrical shell 1 is transparent uncovered right cylinder water receptacle, buoyancy aid bottle 2 is transparent bottle, liquid and submergence are housed in it to be suspended in cylindrical shell 1 water, circular balancing frame 6 is housed outside buoyancy aid bottle 2, this experiment instrument also comprises liquid injection pipe 3 and gas outlet 7, liquid injection pipe 3 one ends place cylindrical shell 1 to be externally connected with syringe 4 and are provided with switch 5, insert in the buoyancy aid bottle 2 in the hole 8 that the other end passes on the balancing frame 6, gas outlet 7 one ends place outside the cylindrical shell 1, and buoyancy aid bottle 2 internal upper parts are inserted in the hole 8 that the other end passes on the balancing frame 6.Adopt after the said structure, because teaching experimental can be given buoyancy aid bottle plus-minus liquid by liquid injection pipe, make when the student is clear to see buoyancy aid bottle plus-minus liquid, the variation of its weight causes the process of its liquid surface lifting in cylindrical shell, thereby understands the relation of weight of object and liquid buoyancy.
Four, description of drawings: accompanying drawing is a structural representation of the present utility model.
Five, specific embodiment: teaching experimental comprises cylindrical shell 1 and buoyancy aid bottle 2, cylindrical shell 1 is transparent uncovered right cylinder water receptacle, buoyancy aid bottle 2 is transparent bottle, liquid and submergence are housed in it to be suspended in cylindrical shell 1 water, circular balancing frame 6 is housed outside buoyancy aid bottle 2, this experiment instrument also comprises liquid injection pipe 3 and gas outlet 7, liquid injection pipe 3 one ends place cylindrical shell 1 to be externally connected with syringe 4 and are provided with switch 5, insert in the buoyancy aid bottle 2 in the hole 8 that the other end passes on the balancing frame 6, gas outlet 7 one ends place outside the cylindrical shell 1, and buoyancy aid bottle 2 internal upper parts are inserted in the hole 8 that the other end passes on the balancing frame 6.
During use, have a certain amount of water in the buoyancy aid bottle, it is immersed in is suspended in certain position in the cylindrical shell water and keeps stable, this moment, the weight of buoyancy aid bottle equated with buoyancy of liquid.When opening switch and add water by syringe to liquid injection pipe, the weight increase of buoyancy aid bottle can see that the buoyancy aid bottle sinks gradually.Otherwise when opening switch and draw water to liquid injection pipe by syringe, the weight of buoyancy aid bottle reduces to see that the buoyancy aid bottle rises gradually.
Claims (1)
1, a kind of teaching experimental, comprise cylindrical shell (1) and buoyancy aid bottle (2), it is characterized in that: cylindrical shell (1) is transparent uncovered right cylinder water receptacle, buoyancy aid bottle (2) is transparent bottle, liquid and submergence are housed in it to be suspended in cylindrical shell (1) water, circular balancing frame (6) is housed outside buoyancy aid bottle (2), this experiment instrument also comprises liquid injection pipe (3) and gas outlet (7), liquid injection pipe (3) one ends place cylindrical shell (1) to be externally connected with syringe (4) and are provided with switch (5), insert in the buoyancy aid bottle (2) in the hole (8) that the other end passes on the balancing frame (6), gas outlet (7) one ends place outside the cylindrical shell (1), and buoyancy aid bottle (2) internal upper part is inserted in the hole (8) that the other end passes on the balancing frame (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620010513 CN200950312Y (en) | 2006-09-26 | 2006-09-26 | Teaching experiment instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620010513 CN200950312Y (en) | 2006-09-26 | 2006-09-26 | Teaching experiment instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200950312Y true CN200950312Y (en) | 2007-09-19 |
Family
ID=38892854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620010513 Expired - Fee Related CN200950312Y (en) | 2006-09-26 | 2006-09-26 | Teaching experiment instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200950312Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426810A (en) * | 2011-10-22 | 2012-04-25 | 齐齐哈尔大学 | Method for aperture periodic flow discharge layered oscillation and apparatus thereof |
-
2006
- 2006-09-26 CN CN 200620010513 patent/CN200950312Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426810A (en) * | 2011-10-22 | 2012-04-25 | 齐齐哈尔大学 | Method for aperture periodic flow discharge layered oscillation and apparatus thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |