CN204576943U - A kind of apparatus for demonstrating proving molecule interval size - Google Patents
A kind of apparatus for demonstrating proving molecule interval size Download PDFInfo
- Publication number
- CN204576943U CN204576943U CN201520312303.7U CN201520312303U CN204576943U CN 204576943 U CN204576943 U CN 204576943U CN 201520312303 U CN201520312303 U CN 201520312303U CN 204576943 U CN204576943 U CN 204576943U
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- CN
- China
- Prior art keywords
- cylindrical shell
- demonstrating
- piston
- size
- rubber tube
- 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
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of apparatus for demonstrating proving molecule interval size, this apparatus for demonstrating comprises two shapes front portion identical with size with the first cylindrical shell of suction nozzle and the second cylindrical shell, the first piston with push rod and the second piston is respectively equipped with in described first cylindrical shell and the second cylindrical shell, described barrel wall is provided with scale, on described two suction nozzles, cover has one section of rubber tube, and described rubber tube is provided with a tongs.By vividly, lecture experiment intuitively, make student by the size of macroscopic appearance easy understand molecule interval, understanding microscopic nature.
Description
Technical field
The utility model relates to a kind of device demonstrating chemical phenomenon, particularly relates to a kind of apparatus for demonstrating proving molecule interval size.
Background technology
Molecule is a kind of elementary particle of constitute, be a kind of cannot see touch less than microscopic particle.Current classroom teaching, only relies on the explanation of teacher, and student is difficult to the character of probing into microscopic particle, is difficult to that student is observed by macroscopic appearance and understands microscopic nature, thus bring difficulty to teaching.
Summary of the invention
The purpose of this utility model is to provide a kind of apparatus for demonstrating proving molecule interval size.
The technical scheme taked for realizing the purpose of this utility model is: this apparatus for demonstrating comprises two shapes front portion identical with size with the first cylindrical shell of suction nozzle and the second cylindrical shell, the first piston with push rod and the second piston is respectively equipped with in described first cylindrical shell and the second cylindrical shell, described barrel wall is provided with scale, on described two suction nozzles, cover has one section of rubber tube, and described rubber tube is provided with a tongs.
During as lecture experiment, take out the first cylindrical shell, pull first piston, according to the scale on the first cylindrical shell, extract 30 milliliters dissolved pinkish red water after, clamp rubber tube with tongs, outflow to prevent water.Then take out the second cylindrical shell, pull the second piston, connect with rubber tube after extracting the air of 30 milliliters.Promote first piston and the second piston by power large equally simultaneously.Find that first piston does not significantly move relative to the first cylindrical shell, and the second piston having drawn air there is obvious movement relative to the second cylindrical shell.Because the diameter of two cylindrical shells is the same, contrast experiment's effect, obviously proves that gas molecule interval is larger than fluid molecule interval, easily compresses.
The beneficial effects of the utility model are: by vividly, lecture experiment intuitively, make student by the size of macroscopic appearance easy understand molecule interval, understanding microscopic nature.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model
In figure: 1, the first cylindrical shell 2, second cylindrical shell 3, first piston 4, second piston 5, rubber tube 6, tongs 7, scale
Embodiment
As shown in Figure 1, this apparatus for demonstrating comprises first cylindrical shell 1 and second cylindrical shell 2 of two shapes front portion identical with size with suction nozzle, the first piston 3 with push rod and the second piston 4 is respectively equipped with in described first cylindrical shell 1 and the second cylindrical shell 2, first cylindrical shell 1 and the second cylindrical shell 2 outer wall are provided with scale 7, on two suction nozzles, cover has one section of rubber tube 5, and rubber tube 5 is provided with a tongs 6.
Claims (1)
1. one kind proves the apparatus for demonstrating of molecule interval size, it is characterized in that this apparatus for demonstrating comprises two shapes front portion identical with size with the first cylindrical shell of suction nozzle and the second cylindrical shell, the first piston with push rod and the second piston is respectively equipped with in described first cylindrical shell and the second cylindrical shell, described barrel wall is provided with scale, on described two suction nozzles, cover has one section of rubber tube, and described rubber tube is provided with a tongs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520312303.7U CN204576943U (en) | 2015-05-09 | 2015-05-09 | A kind of apparatus for demonstrating proving molecule interval size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520312303.7U CN204576943U (en) | 2015-05-09 | 2015-05-09 | A kind of apparatus for demonstrating proving molecule interval size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204576943U true CN204576943U (en) | 2015-08-19 |
Family
ID=53869547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520312303.7U Expired - Fee Related CN204576943U (en) | 2015-05-09 | 2015-05-09 | A kind of apparatus for demonstrating proving molecule interval size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204576943U (en) |
-
2015
- 2015-05-09 CN CN201520312303.7U patent/CN204576943U/en not_active Expired - Fee Related
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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: 20150819 Termination date: 20160509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |