CN204791696U - Experimental device for research air density changes to be influenced resistance - Google Patents
Experimental device for research air density changes to be influenced resistance Download PDFInfo
- Publication number
- CN204791696U CN204791696U CN201520503233.3U CN201520503233U CN204791696U CN 204791696 U CN204791696 U CN 204791696U CN 201520503233 U CN201520503233 U CN 201520503233U CN 204791696 U CN204791696 U CN 204791696U
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- smooth glass
- glass pipe
- smooth
- utility
- model
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- Expired - Fee Related
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Instructional Devices (AREA)
Abstract
The utility model discloses an experimental device for research air density changes to be influenced resistance, including base, smooth glass pipe and air exhaust device, the base lower part is equipped with three levelling device, is connected with smooth glass pipe at the upside of base, smooth glass intraduct is equipped with smooth steel ball air exhaust device and pressure gauge are installed to smooth glass pipe upside. The beneficial effect of the utility model: adopt the levelling device, can be to the leveling of smooth glass pipe, to avoid because uneven influence to experiment phenomena, the horizontal segment of smooth glass pipe and the circular arc venturi tube at both ends are tangent, have only guaranteed that gravitation and aerodynamic drag do work to smooth steel ball, the setting of air exhaust device and pressure gauge, the intraductal air density's of the ability smooth glass of audio -visual realization change, the utility model has the advantages of simple and reasonable structure, ability repeated experiment does benefit to the teaching.
Description
Technical field
The utility model belongs to a kind of experimental provision, is specifically a kind ofly to study the experimental provision of air density change to drag effects.
Background technology
Current teaching adopts cylindrical glass tube mostly for studying the experimental provision of air density change to drag effects, feather is placed in pipe, teacher is needed repeatedly to carry out turning operation during revision test, and the Different Effects of the change of inner air tube pressure to the same object resistance of motion can not be seen intuitively, so a kind of rational in infrastructure, simple to operate, the experimental provision being beneficial to teaching is particularly important.
Utility model content
The purpose of this utility model provides a kind of rational in infrastructure, simple to operate, is beneficial to the research air density change of teaching to the experimental provision of drag effects.
For achieving the above object, the technical solution of the utility model comprises base, smooth glass pipe and air extractor, described base bottom is provided with three levelling devices, smooth glass pipe is connected with in the upside of base, described smooth glass pipe inside is provided with smooth steel ball, on the upside of described smooth glass pipe, be provided with air extractor and pressure gauge.
As preferably, described smooth glass bore is circular, and smooth glass pipe two ends are circular arc and are connected with horizontal segment is tangent.
Owing to adopting technique scheme, the beneficial effects of the utility model are: 1. adopt levelling device, to the leveling of smooth glass pipe, can avoid because injustice is on the impact of experimental phenomena.2. the horizontal segment of smooth glass pipe and the circular arc pipe at two ends tangent, ensure that and only have gravitation and air resistance to do work to smooth steel ball.3. the setting of air extractor and pressure gauge, can realize the change of smooth glass inner air tube density intuitively.4. the utility model is simple and reasonable, can repeat experiment, be beneficial to teaching.
Accompanying drawing explanation
Now by reference to the accompanying drawings the utility model is described further.
Fig. 1 is structural representation of the present utility model.
In figure: 1, base, 2, smooth glass pipe, 3, air extractor, 4, levelling device, 5, smooth steel ball, 6, pressure gauge.
Embodiment
As shown in Figure 1, the utility model comprises base 1, smooth glass pipe 2 and air extractor 3, described base 1 bottom is provided with three levelling devices 4, smooth glass pipe 2 is connected with in the upside of base 1, described smooth glass pipe 2 inside is provided with smooth steel ball 5, is provided with air extractor 3 and pressure gauge 6 on the upside of described smooth glass pipe 2.
Described smooth glass pipe 2 internal diameter is circular, and smooth glass 2 pipe two ends are circular arc and are connected with horizontal segment is tangent.
Principle of work of the present utility model: by three levelling device 4 leveling bases 1, play with air extractor 3 pairs of smooth glass pipes 2 or bleed, observe pressure gauge 6, stop bleeding or playing when reaching experiment air pressure, at smooth glass pipe 2 outer wall, smooth steel ball 5 is drawn onto top, smooth glass pipe 2 one end with magnet, take away magnet, smooth steel ball 5 moves back and forth in smooth glass pipe 2.
Claims (2)
1. study the experimental provision of air density change to drag effects for one kind, comprise base, smooth glass pipe and air extractor, it is characterized in that: described base bottom is provided with three levelling devices, smooth glass pipe is connected with in the upside of base, described smooth glass pipe inside is provided with smooth steel ball, on the upside of described smooth glass pipe, be provided with air extractor and pressure gauge.
2. according to claim 1ly a kind ofly study the experimental provision of air density change to drag effects, it is characterized in that: described smooth glass bore is for circular, and smooth glass pipe two ends are circular arc and are connected with horizontal segment is tangent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520503233.3U CN204791696U (en) | 2015-07-13 | 2015-07-13 | Experimental device for research air density changes to be influenced resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520503233.3U CN204791696U (en) | 2015-07-13 | 2015-07-13 | Experimental device for research air density changes to be influenced resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204791696U true CN204791696U (en) | 2015-11-18 |
Family
ID=54531699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520503233.3U Expired - Fee Related CN204791696U (en) | 2015-07-13 | 2015-07-13 | Experimental device for research air density changes to be influenced resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204791696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106781902A (en) * | 2017-01-11 | 2017-05-31 | 兰州大学 | A kind of experimental provision for studying air drag |
-
2015
- 2015-07-13 CN CN201520503233.3U patent/CN204791696U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106781902A (en) * | 2017-01-11 | 2017-05-31 | 兰州大学 | A kind of experimental provision for studying air drag |
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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: 20151118 Termination date: 20160713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |