CN206975889U - A kind of acoustic propagation medium apparatus for demonstrating - Google Patents
A kind of acoustic propagation medium apparatus for demonstrating Download PDFInfo
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- CN206975889U CN206975889U CN201720582325.4U CN201720582325U CN206975889U CN 206975889 U CN206975889 U CN 206975889U CN 201720582325 U CN201720582325 U CN 201720582325U CN 206975889 U CN206975889 U CN 206975889U
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- transparent cover
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Abstract
The utility model discloses a kind of acoustic propagation medium apparatus for demonstrating of toy for children technical field, including base, the top place placed in the middle of the base 1 is provided with loudspeaker, and loudspeaker is located at the inner chamber of transparent cover, the transparent cover is fixedly mounted on base, the top of the transparent cover is connected by flexible pipe with air throttle, and the other end of air throttle and the left side port of threeway connect, connected at the bottom port of the threeway and the top exit of needle tubing, the utility model extracts the air in translucent cover by syringe, air is gradually reduced to vacuum in translucent cover, audible voice is gradually decrease to noiseless, children can pass through shirtsleeve operation, understanding sound transmission needs medium, the utility model demonstrating effect is intuitively efficient, with very strong market application value.
Description
Technical field
Toy for children technical field is the utility model is related to, specially a kind of acoustic propagation medium apparatus for demonstrating.
Background technology
The sound wave sent from sound source is propagated with certain speed to surrounding, it is meant that the energy of sound wave is also with certain speed
Propagated to surrounding.Current known, sound wave can be propagated in all substances (in addition to vacuum).Its spread speed is by sound bearing medium
Some physical properties, mainly mechanical property are determined.For example, velocity of sound is relevant with the density and elastic property of medium, therefore
Change with state parameters such as the temperature of medium, pressure.About hundreds of meters per second of velocity of sound in gas, raise and increase with temperature, 0 DEG C
When air middle pitch speed be 331.4 meter per seconds, be 340 meter per seconds at 15 DEG C, temperature often raises 1 DEG C, and velocity of sound about increases by 0.6 meter per second.It is logical
Often, velocity of sound is maximum in solid dielectric, and the velocity of sound in liquid medium is smaller, and the velocity of sound in gas medium is minimum.In addition, uneven Jie
Velocity of sound in matter is everywhere.Velocity of sound in anisotropic medium is with the direction of propagation and different.In the market does not have a kind of comparison directly perceived
Demonstrating sound propagation medium instrument, too abstruse when carrying out acoustic propagation medium demonstration to children, children are not easy to manage
Solution.To be come into operation therefore, we have proposed a kind of acoustic propagation medium apparatus for demonstrating, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of acoustic propagation medium apparatus for demonstrating, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the utility model provides following technical scheme：A kind of acoustic propagation medium apparatus for demonstrating, bag
Base is included, the top place placed in the middle of the base 1 is provided with loudspeaker, and loudspeaker is located at the inner chamber of transparent cover, described transparent
Cover body is fixedly mounted on base, and the top of the transparent cover is connected by flexible pipe with air throttle, and the other end of air throttle
It is connected with the left side port of threeway, is connected at the bottom port of the threeway and the top exit of needle tubing.
Preferably, the junction of the transparent cover and base is provided with the O-ring seal for preventing gas leakage.
Preferably, the top of the transparent cover is provided with sealed connection portion, and sealed connection portion is connected with flexible pipe.
Preferably, the top port of the threeway is provided with air throttle, and the bottom port of threeway is plugged on the top of needle tubing
The inner chamber in portion exit.
Compared with prior art, the beneficial effects of the utility model are：The utility model is extracted in translucent cover by syringe
Air, air is gradually reduced to vacuum in translucent cover, and audible voice is gradually decrease to noiseless, and children can be by simply grasping
Make, understanding sound transmission needs medium, and the utility model demonstrating effect is intuitively efficient, has very strong market application value.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
In figure：1 base, 2 loudspeakers, 3 transparent covers, 4 flexible pipes, 5 air throttles, 6 threeways, 7 needle tubings.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1, the utility model provides a kind of technical scheme：A kind of acoustic propagation medium apparatus for demonstrating, including bottom
Seat 1, the top place placed in the middle of the base 1 is provided with loudspeaker 2, and loudspeaker 2 is located at the inner chamber of transparent cover 3, described transparent
Cover body 3 is fixedly mounted on base 1, and the top of the transparent cover 3 is connected by flexible pipe 4 with air throttle 5, and air throttle 5
The other end is connected with the left side port of threeway 6, and the bottom port of the threeway 6 at the top exit of needle tubing 7 with being connected.
Wherein, the junction of the transparent cover 3 and base 1 is provided with the O-ring seal for preventing gas leakage, the translucent cover
The top of body 3 is provided with sealed connection portion, and sealed connection portion is connected with flexible pipe 4, and the top port of the threeway 6 is provided with solar term
Valve 5, and the bottom port of threeway 6 is plugged on the inner chamber at the top exit of needle tubing 7.
Operation principle：The utility model is by base 1, transparent cover 3, loudspeaker 2, needle tubing 7, air throttle 5, flexible pipe 4 and three
Logical 6 are made.Loudspeaker 2 to be placed in the base, loudspeaker 2 is opened broadcasting sound, rubber ring is placed on the groove of base 1,
Transparent cover 3 and base 1 can be made seamless applying, after covering transparent cover 3, the connection flexible pipe 4 of transparent cover 3, threeway 6, air throttle 5
And needle tubing 7, the air in transparent cover 3 is extracted by needle tubing 7, air is gradually reduced to vacuum, audible sound in transparent cover 3
Sound be gradually decrease to it is noiseless, children can by shirtsleeve operation, understand sound transmission need medium, the utility model demonstrating effect
It is directly perceived efficient, there is very strong market application value.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of acoustic propagation medium apparatus for demonstrating, including base (1), it is characterised in that：Locate between two parties at the top of the base (1)
Loudspeaker (2) is installed, and loudspeaker (2) is located at the inner chamber of transparent cover (3), the transparent cover (3) is fixedly mounted on bottom
Seat (1) on, the top of the transparent cover (3) is connected by flexible pipe (4) with air throttle (5), and the other end of air throttle (5) and
The left side port connection of threeway (6), the bottom port of the threeway (6) at the top exit of needle tubing (7) with being connected.
A kind of 2. acoustic propagation medium apparatus for demonstrating according to claim 1, it is characterised in that：The transparent cover (3)
Being provided with the junction of base (1) prevents the O-ring seal of gas leakage.
A kind of 3. acoustic propagation medium apparatus for demonstrating according to claim 1, it is characterised in that：The transparent cover (3)
Top be provided with sealed connection portion, and sealed connection portion is connected with flexible pipe (4).
A kind of 4. acoustic propagation medium apparatus for demonstrating according to claim 1, it is characterised in that：The top of the threeway (6)
Portion port is provided with air throttle (5), and the bottom port of threeway (6) is plugged on the inner chamber at the top exit of needle tubing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720582325.4U CN206975889U (en) | 2017-05-24 | 2017-05-24 | A kind of acoustic propagation medium apparatus for demonstrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720582325.4U CN206975889U (en) | 2017-05-24 | 2017-05-24 | A kind of acoustic propagation medium apparatus for demonstrating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206975889U true CN206975889U (en) | 2018-02-06 |
Family
ID=61411060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720582325.4U Expired - Fee Related CN206975889U (en) | 2017-05-24 | 2017-05-24 | A kind of acoustic propagation medium apparatus for demonstrating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206975889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145620A (en) * | 2020-01-20 | 2020-05-12 | 艾迪技术创新私人有限公司 | Teaching apparatus for demonstrating sound transmission through air |
-
2017
- 2017-05-24 CN CN201720582325.4U patent/CN206975889U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145620A (en) * | 2020-01-20 | 2020-05-12 | 艾迪技术创新私人有限公司 | Teaching apparatus for demonstrating sound transmission through air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 Termination date: 20200524 |