CN203882491U - Device for demonstrating Bernoulli principle - Google Patents
Device for demonstrating Bernoulli principle Download PDFInfo
- Publication number
- CN203882491U CN203882491U CN201320736598.1U CN201320736598U CN203882491U CN 203882491 U CN203882491 U CN 203882491U CN 201320736598 U CN201320736598 U CN 201320736598U CN 203882491 U CN203882491 U CN 203882491U
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- air
- demonstration device
- flow pipe
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- lightweight bead
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Abstract
The utility model discloses a device for demonstrating the Bernoulli principle, and the main points of the technical scheme are that the main body of the device also comprises a speed-adjusting valve; and one end of the speed-adjusting valve is connected with the other end, opposite to an air outlet, of the connecting tube, and the other end of the speed-adjusting valve is connected with an airflow circular tube. The device provided by the utility model can adjust the speed-adjusting valve to control the flow speed of air in the airflow circular tube, and enables a small light ball to make rotating movement above the airflow circular tube. Meanwhile, the distance from the small light ball to the airflow circular tube can be changed, and the Bernoulli suspension is demonstrated more visually and vividly in a demonstration process.
Description
Technical field
The utility model relates to exhibition article, and more particularly, it relates to a kind of bernoulli principle demonstration device.
Background technology
The content of bernoulli principle is, for liquid or gas, speed is little, and pressure is just large, if speed is large, pressure is just little.Bernoulli principle is widely used in Science & Society, in work of popular science, expects that bernoulli principle can be with more vivid and vivo represent.
At present, on market, a kind of bernoulli principle demonstration device, comprise demonstration device main body, lightweight bead, air-flow pipe, described lightweight bead is placed in the top of air-flow pipe, and described demonstration device main body comprises blower fan, connecting pipe, and the air outlet of described blower fan is connected with connecting pipe one end, the connecting pipe other end is connected with gas flow tube, and described air-flow pipe central axis is perpendicular to ground.But in the gas flow tube of this demonstration device, gas velocity is relatively to immobilize, the position that lightweight bead is placed in the top of air-flow pipe is also relatively to immobilize, affect the effect that represents of bernoulli principle demonstration device, can not fine image and vivo present bernoulli principle.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of bernoulli principle demonstration device that can conveniently control gas velocity.
For achieving the above object, the utility model provides following technical scheme: a kind of bernoulli principle demonstration device, comprise demonstration device main body, lightweight bead, air-flow pipe, described demonstration device main body comprises blower fan and connecting pipe, the air outlet of described blower fan is connected with connecting pipe one end, described air-flow pipe central axis is perpendicular to ground, described lightweight bead is placed in the top of air-flow pipe, described demonstration device main body also includes flow speed control valve, described flow speed control valve one end connects with the other end of the relative air outlet of connecting pipe, the other end is connected with air-flow pipe, the external diameter of described lightweight bead is external diameter 2-4 times of air-flow pipe, described lightweight bead is that transparent material is made, the little outer surface of ball of described lightweight scribbles luminescent layer.
By adopting technique scheme, start blower fan, because lightweight bead is lighter weight, the air flow energy of ejection holds up lightweight bead above air-flow pipe, when the gas velocity regulating in flow speed control valve control air-flow pipe, lightweight bead can be rotated above air-flow pipe, lightweight bead also can change apart from the height of air-flow pipe simultaneously, more vivid in presentation process, vividly present Bernoulli Jacob's suspension, the diameter of described lightweight bead is external diameter 2-4 times of air-flow pipe, can be because lightweight bead is excessive or the too small demonstration device bandwagon effect that affects, convenient, show fast, described lightweight bead is that transparent material is made, the little outer surface of ball of described lightweight scribbles luminescent layer, when bead suspends rotation, little club is luminous, make presentation process more vivid, vividly.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of bernoulli principle demonstration device of the utility model;
Fig. 2 is the cut-open view of lightweight bead in Fig. 1.
In figure 1, demonstration device main body; 2, lightweight bead; 3, air-flow pipe; 11, blower fan; 12, connecting pipe; 13, flow speed control valve; 21, luminescent layer.
Embodiment
Referring to figs. 1 through Fig. 2, a kind of bernoulli principle demonstration device of the utility model is described further.
A kind of bernoulli principle demonstration device, comprise demonstration device main body 1, lightweight bead 2, air-flow pipe 3, described lightweight bead 2 is placed in the top of air-flow pipe 3, the diameter of described lightweight bead is that doubly (multiple is 3 times for the external diameter 2-4 of air-flow pipe, the demonstration effect of demonstration device is best), can be because lightweight bead is excessive or the too small demonstration device bandwagon effect that affects, convenient, show fast; Described demonstration device main body 1 comprises blower fan 11, connecting pipe 12, the air outlet of described blower fan 11 is connected with connecting pipe 12 one end, described air-flow pipe 3 central axis are perpendicular to ground, described demonstration device main body 1 also includes flow speed control valve 13, described connecting pipe 12 other ends are connected with flow speed control valve 13, and described air-flow pipe 3 is connected with flow speed control valve 13.
Start blower fan 11, because of lightweight bead 2, the air-flow of ejection holds up lightweight bead 2 above air-flow pipe 3, control the gas velocity in air-flow pipe 3 when regulating flow speed control valve 13, lightweight bead 2 can be rotated above air-flow pipe 3, lightweight bead 2 height apart from air-flow pipe 3 also can change simultaneously, more vivid in presentation process, vividly present Bernoulli Jacob's suspension, described lightweight bead 2 can be made up of transparent material simultaneously, transparent material can be transparent plastic, as PC, ABS, PS, wherein the lightweight bead transparent effect of PC transparent plastic manufacture is best, described lightweight bead 2 outside surfaces scribble luminescent layer 21, can add different colours luminescent powder at the coating of luminescent layer, wherein emitting red light powder is best, color is comparatively obvious, increasing luminescent layer 21 has one well to set off effect by contrast to bandwagon effect.
Claims (1)
1. a bernoulli principle demonstration device, comprise demonstration device main body, lightweight bead, air-flow pipe, described demonstration device main body comprises blower fan and connecting pipe, the air outlet of described blower fan is connected with connecting pipe one end, described air-flow pipe central axis is perpendicular to ground, described lightweight bead is placed in the top of air-flow pipe, it is characterized in that: described demonstration device main body also includes flow speed control valve, described flow speed control valve one end connects with the other end of the relative air outlet of connecting pipe, the other end is connected with air-flow pipe, the external diameter of described lightweight bead is external diameter 2-4 times of air-flow pipe, described lightweight bead is that transparent material is made, the little outer surface of ball of described lightweight scribbles luminescent layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320736598.1U CN203882491U (en) | 2013-11-20 | 2013-11-20 | Device for demonstrating Bernoulli principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320736598.1U CN203882491U (en) | 2013-11-20 | 2013-11-20 | Device for demonstrating Bernoulli principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882491U true CN203882491U (en) | 2014-10-15 |
Family
ID=51682967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320736598.1U Expired - Fee Related CN203882491U (en) | 2013-11-20 | 2013-11-20 | Device for demonstrating Bernoulli principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882491U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732846A (en) * | 2015-04-03 | 2015-06-24 | 安徽东一特电子技术有限公司 | Somatosensory interaction Bernoulli balance ball presentation device |
| CN105936194A (en) * | 2015-11-04 | 2016-09-14 | 中山市华企在线信息科技有限公司 | Solar air suspension system |
| CN106023739A (en) * | 2016-06-24 | 2016-10-12 | 尤爱惠 | Novel "Bernoulli effect" demonstration teaching aid |
| CN106023738A (en) * | 2016-06-16 | 2016-10-12 | 尤爱惠 | T-shaped tubular balloon blowing table tennis fun teaching aid |
| CN108961955A (en) * | 2018-07-26 | 2018-12-07 | 王小兰 | It is a kind of for demonstrating the device of bernoulli principle |
| CN110141827A (en) * | 2019-04-17 | 2019-08-20 | 南宁学院 | Medical hand eye coordination training device |
| CN110624255A (en) * | 2019-09-26 | 2019-12-31 | 刘沁沁 | Aircraft model rotation display device based on airflow suspension |
| CN115273621A (en) * | 2022-09-07 | 2022-11-01 | 清华大学 | Device for demonstrating air suction phenomenon and science popularization air suction phenomenon action principle |
-
2013
- 2013-11-20 CN CN201320736598.1U patent/CN203882491U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104732846A (en) * | 2015-04-03 | 2015-06-24 | 安徽东一特电子技术有限公司 | Somatosensory interaction Bernoulli balance ball presentation device |
| CN105936194A (en) * | 2015-11-04 | 2016-09-14 | 中山市华企在线信息科技有限公司 | Solar air suspension system |
| CN106023738A (en) * | 2016-06-16 | 2016-10-12 | 尤爱惠 | T-shaped tubular balloon blowing table tennis fun teaching aid |
| CN106023739A (en) * | 2016-06-24 | 2016-10-12 | 尤爱惠 | Novel "Bernoulli effect" demonstration teaching aid |
| CN108961955A (en) * | 2018-07-26 | 2018-12-07 | 王小兰 | It is a kind of for demonstrating the device of bernoulli principle |
| CN110141827A (en) * | 2019-04-17 | 2019-08-20 | 南宁学院 | Medical hand eye coordination training device |
| CN110624255A (en) * | 2019-09-26 | 2019-12-31 | 刘沁沁 | Aircraft model rotation display device based on airflow suspension |
| CN115273621A (en) * | 2022-09-07 | 2022-11-01 | 清华大学 | Device for demonstrating air suction phenomenon and science popularization air suction phenomenon action principle |
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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: 20141015 Termination date: 20151120 |
|
| EXPY | Termination of patent right or utility model |