CN200993833Y - Gas recoil simple demonstrating device - Google Patents
Gas recoil simple demonstrating device Download PDFInfo
- Publication number
- CN200993833Y CN200993833Y CN 200620168360 CN200620168360U CN200993833Y CN 200993833 Y CN200993833 Y CN 200993833Y CN 200620168360 CN200620168360 CN 200620168360 CN 200620168360 U CN200620168360 U CN 200620168360U CN 200993833 Y CN200993833 Y CN 200993833Y
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- CN
- China
- Prior art keywords
- base
- rotating shaft
- gas
- central rotating
- source
- 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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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
A simple air recoiling demonstrator is composed of a base, and is characterized in that: the center of the base is provided with a groove, and the left side of the base is provided with a support, and the top end of the support is provided with a transverse connecting bar, the other end of which is provided with a thimble; the center of the base is also provided with a rotary table and a central rotating shaft, and the upper end of the central rotating shaft passes through the thimble of the connecting bar, and the lower end of the central rotating shaft passes through the rotary table and is inserted into the groove in the center of the base, as well as the rotary table at the two sides of the central rotating shaft is provided with an air source cylinder, which has a fumarole, and is filled with air. The utility model has the advantages of simple structure and adjustable and controllable experimental time as per the requirement, so that the teacher can complete the teaching task rapidly and the learning interest and operating capability of the students can be promoted as well.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly relates to a kind of simple and easy apparatus for demonstrating of gas backwash that is used to demonstrate the gas backwash principle, is to having replenishing of nature study teaching aid kind now, belonging to the school supply and stationery category.
Background technology
At present, the used teaching aid of primary school seldom, and function singleness just designs at the content that needs separately to show.Because natural science is experimental very strong, the teaching aid that can start to test for the student but seldom, for example, the content of the gas backwash that natural science is introduced, existing teaching aid are that employing is the test unit that source of the gas promotes moving of car with the balloon, and balloon source of the gas duration of experiment is short, and dolly be subjected to the road surface influence the motion irregular, the balloon explosive is unfavorable for the enthusiasm that mobilizing students initiatively participates in, and more is helpless to cultivate students ' analysis problem and problem-solving ability.
The utility model content
The purpose of this utility model is to overcome the prior art above shortcomings, improve by research, provide the simple and easy apparatus for demonstrating of a kind of gas backwash, this novel teaching aid has characteristics simple in structure, that duration of experiment length can be regulated and control as required, both be convenient to the teacher and finished teaching task quickly, improved the interest and the manipulative ability of student's study again, very helpful to cultivating students ' analysis problem and problem-solving ability.
The technical scheme that the utility model provides is: the simple and easy apparatus for demonstrating of this gas backwash, include a base, be characterized in being provided with in the heart in the described base groove, the left side of base is provided with support, the top of support is provided with a horizontal connecting link, the other end of connecting link is provided with a collar, also be provided with rotating disk and central rotating shaft in the base in the heart, the collar of connecting link is passed in the central rotating shaft upper end, the central rotating shaft lower end is passed rotating disk and is inserted the groove at base center, the rotating disk of central rotating shaft both sides is provided with the source of the gas tube, and the source of the gas tube is provided with gas orifice, in the source of the gas tube gas is housed.
Compared with prior art, the beneficial effects of the utility model are: have characteristics simple in structure, that duration of experiment length can be regulated and control as required, both be convenient to the teacher and finished teaching task quickly, improved the interest and the manipulative ability of student's study again.
Description of drawings
Accompanying drawing is the structural representation of the embodiment that provides of the utility model.
Embodiment
As shown in the figure, the simple and easy apparatus for demonstrating of this gas backwash, include a base 1, be provided with groove in the base 1 in the heart, the left side of base 1 is provided with support 2, the top of support 2 is provided with a horizontal connecting link 6, the other end of connecting link 6 is provided with a collar 7, also be provided with rotating disk 5 and central rotating shaft 3 in the base 1 in the heart, the collar 7 of connecting link 6 is passed in central rotating shaft 3 upper ends, and central rotating shaft 3 lower ends are passed rotating disk 5 and inserted the groove at base 1 center, and the rotating disk 5 of central rotating shaft 3 both sides is provided with source of the gas tube 4, source of the gas tube 4 is provided with gas orifice 8, in the source of the gas tube 4 gas is housed.
During demonstration, the gas orifice 8 of source of the gas tube 4 is opened, colourless, tasteless, the nontoxic gas ejection of being equipped with in the source of the gas tube 4, and producing very big reacting force moves rotating disk 5 round about, along with gas in the source of the gas tube 4 constantly sprays, the speed that rotating disk 5 rotates is accelerated gradually, thereby has proved the recoil action principle of gas.
Claims (1)
1. simple and easy apparatus for demonstrating of gas backwash, include a base, it is characterized in that being provided with in the heart in the described base groove, the left side of base is provided with support, the top of support is provided with a horizontal connecting link, the other end of connecting link is provided with a collar, also be provided with rotating disk and central rotating shaft in the base in the heart, the collar of connecting link is passed in the central rotating shaft upper end, the central rotating shaft lower end is passed rotating disk and is inserted the groove at base center, the rotating disk of central rotating shaft both sides is provided with the source of the gas tube, and the source of the gas tube is provided with gas orifice, in the source of the gas tube gas is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620168360 CN200993833Y (en) | 2006-12-21 | 2006-12-21 | Gas recoil simple demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620168360 CN200993833Y (en) | 2006-12-21 | 2006-12-21 | Gas recoil simple demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993833Y true CN200993833Y (en) | 2007-12-19 |
Family
ID=38946907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620168360 Expired - Fee Related CN200993833Y (en) | 2006-12-21 | 2006-12-21 | Gas recoil simple demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993833Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112827189A (en) * | 2021-02-20 | 2021-05-25 | 滨州童乐科技有限公司 | Multi-person cooperation balloon recoil rotating trolley and use method thereof |
-
2006
- 2006-12-21 CN CN 200620168360 patent/CN200993833Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112827189A (en) * | 2021-02-20 | 2021-05-25 | 滨州童乐科技有限公司 | Multi-person cooperation balloon recoil rotating trolley and use method 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 |