CN203300103U - Improved acoustic suspension ball - Google Patents
Improved acoustic suspension ball Download PDFInfo
- Publication number
- CN203300103U CN203300103U CN2013203965962U CN201320396596U CN203300103U CN 203300103 U CN203300103 U CN 203300103U CN 2013203965962 U CN2013203965962 U CN 2013203965962U CN 201320396596 U CN201320396596 U CN 201320396596U CN 203300103 U CN203300103 U CN 203300103U
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- China
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- seal box
- rectangular seal
- amplitude transformer
- transparent
- standpipe
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Abstract
The utility model discloses an improved acoustic suspension ball. The improved acoustic suspension ball comprises a control box body, a rectangular seal box, a transparent upright pipe and a table tennis. The rectangular seal box is arranged on the control box body, the upper part of the rectangular seal box is connected with the transparent upright pipe, and the table tennis capable of floating up and down is arranged in the transparent upright pipe. A power amplifier is arranged in the control box body, and a tapered concentrator is arranged in the rectangular seal box. The upper opening of the tapered concentrator is connected with and is extended into the lower port of the transparent upright pipe, and a loudspeaker is connected under the tapered concentrator. The improved acoustic suspension ball has the advantages of visual and lifelike demonstration, simple structure and convenient operation.
Description
Technical field
The utility model relates to a kind of instrument of demonstrating physical phenomenon, relates in particular to a kind of demonstrator that can ocular demonstration utilizes the Sound control bound.
Background technology
At a fluid system, in air-flow, flow velocity is faster, and the pressure that fluid produces is just less, and Here it is " Bernoulli's theorem ".Bernoulli effect is applicable to comprise all fluids of gas, is one of fluid fundamemtal phenomena while doing steady flow, reflects the relation of pressure and the flow velocity of fluid, and the relation of flow velocity and pressure: the flow velocity of fluid is larger, and pressure is less; The flow velocity of fluid is less, and pressure is larger.At classroom teaching, mostly the teacher when this law of explanation, is to explain in conjunction with examples such as aircraft wing, sprayer, petrolic carburetors.Go back at present neither one and can demonstrate intuitively the instrument of Bernoulli's theorem, in order to make the student demonstrate intuitively this law.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, demonstrating visual's sound belpharoedema, makes student's ratio understand more intuitively Bernoulli's theorem.
the purpose of this utility model is achieved through the following technical solutions, this improved sound belpharoedema comprises the control casing, the rectangular seal box, transparent standpipe, table tennis, described control casing top is provided with the rectangular seal box, described rectangular seal box top is connecting transparent standpipe, be provided with the table tennis that can fluctuate along standpipe in transparent standpipe, be provided with power amplifier in described control casing, control casing and be provided with power control switch, loudspeaker switch, the sidewall of described rectangular seal box is provided with air admission hole, be provided with the taper amplitude transformer in described rectangular seal box, the upper shed of described taper amplitude transformer and the lower port of transparent standpipe are joined, the diameter of described transparent standpipe lower port is a bit larger tham the diameter of the upper shed of taper amplitude transformer, the upper open end of described taper amplitude transformer stretches into the lower port of transparent standpipe, the below of described taper amplitude transformer connects a loudspeaker power amplifier.
Preferably, the diameter of taper amplitude transformer upper shed is five of transparent standpipe diameter/four o'clock, and the demonstration effect is better.
Preferably, on loudspeaker, during the power amplifier of connecting band MP3 decoding, the demonstration effect is better.
Preferably, transparent standpipe is the transparent organic glass pipe.
when switching on power, music in power amplifier is sounded by loudspeaker, the vibration that the sound wave that loudspeaker produces produces is converged through the taper amplitude transformer, and from the upper shed of taper amplitude transformer, enter in transparent standpipe, because the upper shed of amplitude transformer is taper, upper shed is narrow and small, air is compressed, pour in transparent standpipe with speed faster, and the drive ambient air enters in transparent standpipe from the gap of the upper shed of taper amplitude transformer and transparent standpipe, further to amplify the vibration of sound wave in transparent standpipe, the air compressing amplitude increases, table tennis is with the music up-down vibration, demonstrated the aerial propagation of sound.
After the air intake opening on the seal box sidewall stopped up, extraneous air can not enter seal box, entered air-flow in transparent standpipe entirely from the vibration of the eardrum of raising one's voice, and table tennis moves on can not be continuously, and table tennis will be beated in a less amplitude.
The beneficial effects of the utility model: demonstrating visual, lifelike image, and also simple in structure, easy to operate.
Description of drawings
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing
Fig. 1 is schematic diagram of the present utility model
Fig. 2 is structural drawing of the present utility model
In figure: 1, control casing 2, rectangular seal box 3, transparent standpipe 4, table tennis 5, power control switch 6, loudspeaker switch 7, air admission hole 8, taper amplitude transformer 9, loudspeaker 10, upper shed 11, lower port 12, power amplifier
Embodiment
as Fig. 1, 2, this improved sound belpharoedema comprises controls casing 1, rectangular seal box 2, transparent standpipe 3, table tennis 4, control casing 1 top and be provided with rectangular seal box 2, rectangular seal box 2 tops are connecting transparent standpipe 3, be provided with the table tennis 4 that can fluctuate along standpipe in transparent standpipe 3, control in casing 1 and be provided with power amplifier 12, control casing 1 and be provided with power control switch 5, loudspeaker switch 6, the sidewall of rectangular seal box 2 is provided with air admission hole 7, be provided with taper amplitude transformer 8 in rectangular seal box 2, the upper shed 10 of taper amplitude transformer 8 is joined with the lower port 11 of transparent standpipe 3, the diameter of transparent standpipe 3 lower port is a bit larger tham the diameter of the upper shed of taper amplitude transformer 8, upper shed 10 ends of taper amplitude transformer 8 stretch into the lower port 11 of transparent standpipe 3, the below of taper amplitude transformer 8 connects a loudspeaker 9 and power amplifier 12.
when switching on power, music in power amplifier 12 is sounded by loudspeaker 9, the vibration that the sound wave that loudspeaker 9 produces produces is converged through taper amplitude transformer 8, and from taper amplitude transformer upper shed 10, enter in transparent standpipe 3, because the upper shed 10 of taper amplitude transformer is taper, upper shed is narrow and small, air is compressed, pour in transparent standpipe 3 with speed faster, and the drive ambient air enters in transparent standpipe 3 from taper amplitude transformer upper shed 10 and the gap of transparent standpipe 3, further to amplify the vibration of sound wave in transparent standpipe 3, the air compressing amplitude increases, table tennis 4 is with the music up-down vibration, demonstrated the aerial propagation of sound.
After the air intake opening 7 on rectangular seal box 2 sidewalls stopped up, extraneous air can not enter seal box, entered air-flow in transparent standpipe 3 entirely from Lu's drum vibration of membrane of raising one's voice, and table tennis 4 moves on can not be continuously, and table tennis 4 will be beated in a less amplitude.
Claims (1)
1. improved sound belpharoedema, it is characterized in that this improved sound belpharoedema comprises the control casing, the rectangular seal box, transparent standpipe, table tennis, described control casing top is provided with the rectangular seal box, described rectangular seal box top is connecting transparent standpipe, be provided with the table tennis that can fluctuate along standpipe in transparent standpipe, be provided with power amplifier in described control casing, control casing and be provided with power control switch, loudspeaker switch, the sidewall of described rectangular seal box is provided with air admission hole, be provided with the taper amplitude transformer in described rectangular seal box, the upper shed of described taper amplitude transformer and the lower port of transparent standpipe are joined, the diameter of described transparent standpipe lower port is a bit larger tham the diameter of the upper shed of taper amplitude transformer, the upper open end of described taper amplitude transformer stretches into the lower port of transparent standpipe, the below of described taper amplitude transformer connects a loudspeaker and power amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203965962U CN203300103U (en) | 2013-06-26 | 2013-06-26 | Improved acoustic suspension ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203965962U CN203300103U (en) | 2013-06-26 | 2013-06-26 | Improved acoustic suspension ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203300103U true CN203300103U (en) | 2013-11-20 |
Family
ID=49576099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203965962U Expired - Fee Related CN203300103U (en) | 2013-06-26 | 2013-06-26 | Improved acoustic suspension ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203300103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105575231A (en) * | 2015-12-18 | 2016-05-11 | 中山市民众镇民众中心小学 | Acoustic levitation demonstrator |
-
2013
- 2013-06-26 CN CN2013203965962U patent/CN203300103U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105575231A (en) * | 2015-12-18 | 2016-05-11 | 中山市民众镇民众中心小学 | Acoustic levitation demonstrator |
| CN105575231B (en) * | 2015-12-18 | 2018-06-26 | 关朋伟 | A kind of acoustic levitation demonstration device |
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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: 20131120 Termination date: 20140626 |
|
| EXPY | Termination of patent right or utility model |