CN108172081A - Easy loudspeaker - Google Patents
Easy loudspeaker Download PDFInfo
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- CN108172081A CN108172081A CN201810118848.2A CN201810118848A CN108172081A CN 108172081 A CN108172081 A CN 108172081A CN 201810118848 A CN201810118848 A CN 201810118848A CN 108172081 A CN108172081 A CN 108172081A
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- tuning fork
- ontology
- voice
- conducting pipe
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/14—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for acoustics
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Optimization (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Algebra (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Acoustics & Sound (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Auxiliary Devices For Music (AREA)
Abstract
The present invention relates to the technical fields of teaching appliance auxiliary equipment, and more particularly to a kind of easy loudspeaker, teaching method diversification improves the learning interest of student, a variety of properties of sound wave are demonstrated, improve teaching efficiency, improves use reliability；And convenient for the size of sound is distinguished, experiment effect is improved, improves practicability；Including horn-like ontology, ontology is internally provided with cavity, the left end and right end of ontology are respectively arranged with voice entry and sound outlet, further include experimental bench, left tuning fork, right tuning fork, stent, voice conducting pipe, threaded rod, screwed pipe, baffle and decibel survey instrument, external thread structure is provided on the lateral wall of voice conducting pipe, internal thread structure is provided at the voice entry of ontology, experimental bench is internally provided with lateral cunning chamber, and sliding intracavitary is provided with sliding block, the top middle portion of sliding block is provided with placing groove, ball bearing is installed in placing groove, the top of experimental bench is provided with the strip through-hole communicated with sliding chamber.
Description
Technical field
The present invention relates to the technical field of teaching appliance auxiliary equipment, more particularly to a kind of easy loudspeaker.
Background technology
It is well known that sound is to generate sound wave by object vibration, then pass through medium（Air or solid, liquid）It propagates simultaneously
The wave phenomenon that can be perceived by human or animal hearing organ, initially sends out vibration（Vibrations）Object cry source, sound is with wave
Form vibration（Vibrations）It propagates, sound is that sound wave propagates the movement to be formed by any substance, is passed through in physical acoustics teaching
Some easy loudspeakers can be often applied, to improve understanding of the student to sound, easy loudspeaker is a kind of Aided Physical acoustics religion
Tool is widely used in a variety of applications in the field of teaching equipment；Existing simplicity loudspeaker includes horn-like sheet
Body, ontology are internally provided with cavity, and the left end and right end of ontology are respectively arranged with voice entry and sound outlet, and sound
The size of outlet is more than the size of voice entry, and cavity is gradually opened around by voice entry to sound outlet；Existing letter
Just loudspeaker is at the voice entry of main body left end in use, send out acoustic wave vibrations, acoustic wave vibrations by the cavity of ontology to the right
It propagates and is spread out of by sound outlet, reduce the dispersion everywhere of sound wave, realize amplifying effect, the propagation of sound wave is carried out convenient for student
Understanding；It is found in existing simplicity loudspeaker use, can only impart knowledge to students to the mode of propagation of sound wave, teaching method is single,
Teaching efficiency is general, causes use reliability relatively low；And the small difference to sound size is not easy to by hearing organ merely
It does not distinguish, experiment effect is poor, causes practicability relatively low.
Invention content
In order to solve the above technical problems, the present invention provides a kind of teaching method diversification, the learning interest of student is improved, it is right
A variety of properties of sound wave are demonstrated, and improve teaching efficiency, improve use reliability；And convenient for the size of sound is carried out area
Point, experiment effect is improved, improves the easy loudspeaker of practicability.
The easy loudspeaker of the present invention, including horn-like ontology, ontology is internally provided with cavity, the left end of ontology and
Right end is respectively arranged with voice entry and sound outlet, and the size of sound outlet is more than the size of voice entry, cavity by
Voice entry gradually opens around to sound outlet；Further include experimental bench, left tuning fork, right tuning fork, stent, voice conducting pipe, screw thread
The bottom end of bar, screwed pipe and baffle, the left tuning fork and right tuning fork is connect respectively with the left side on experimental bench top and right side, described
Top of the top and bottom end of stent respectively with the bottom end of voice conducting pipe and experimental bench is connect, and the voice conducting pipe is located at the right side of left tuning fork
Side, and external thread structure is provided on the lateral wall of voice conducting pipe, internal thread structure is provided at the voice entry of the ontology,
The external thread structure of the internal thread structure and voice conducting pipe matches, and the right end of voice conducting pipe is inserted into from the voice entry of ontology and spiral shell
It is filled in the cavity of ontology, experimental bench is internally provided with lateral cunning chamber, and sliding intracavitary is provided with sliding block, and the sliding block can
It horizontally slips, and the top middle portion of sliding block is provided with placing groove in sliding intracavitary, ball axis is installed in the placing groove
It holds, the top of experimental bench is provided with the strip through-hole communicated with sliding chamber, and the bottom end of the screwed pipe is passed through from the top of experimental bench
Strip through-hole stretches to sliding intracavitary and is inserted into inside ball bearing, and the top of the threaded rod and the center bottom of baffle are fixed
Connection, the bottom end of threaded rod is inserted into and spiral shell is filled to inside the top of screwed pipe, and the baffle is located at the right side of ontology and positioned at the right side
The left side of tuning fork, and the top of baffle is provided with decibel and surveys instrument.
The easy loudspeaker of the present invention, further includes two groups of rubber rings, the left tuning fork is identical with right tuning fork, left tuning fork
With U-typed metallic plate of the right tuning fork including top sounding and the supporting rod of bottom, top and the U-typed metal sheet bottom of supporting rod
The sealing end connection in portion, two groups of rubber rings are respectively sleeved on the supporting rod of left tuning fork and right tuning fork, two groups of rubber rings
Side wall of the inner ring respectively with two groups of supporting rods contacts, and two groups of rubber rings can slide up and down on two groups of supporting rods respectively.
The easy loudspeaker of the present invention, two groups of U-typed metallic plates, voice conducting pipe and ontology are located in same horizontal line.
The easy loudspeaker of the present invention, the voice conducting pipe, ontology, left tuning fork and right tuning fork are iron material matter.
The easy loudspeaker of the present invention, further includes sponge plate, plank and glass plate, is provided on the right side wall of the baffle
Mounting groove, the size and shape of the sponge plate, plank and glass plate is identical with the size and shape of mounting groove, sponge plate,
Plank and glass are removably mounted in mounting groove.
Beneficial effects of the present invention are compared with prior art：By above-mentioned setting, by tapping left tuning fork, sound is sent out
Wave, sound wave pass through voice conducting pipe and ontology to be spread out of by sound outlet, and surveying instrument by decibel is detected the size of sound, passes through
Ontology is rotated, ontology is made to be moved left and right on voice conducting pipe, by changing the pattern length of voice conducting pipe and ontology, to sound size
Variation is tested, and is horizontally slipped by sliding block in sliding intracavitary and baffle and decibel is driven to survey instrument and move left and right, change left sound
Fork and decibel survey the distance between instrument, and the variation of sound size is tested, and by rotating screwed pipe, baffle is rotated one
Fixed angle can test the reflection of sound wave, teaching method diversification, the learning interest of student be improved, to sound wave
A variety of properties are demonstrated, and improve teaching efficiency, improve use reliability；Baffle is driven to move left and right by mobile sliding block, and
Baffle is moved to the middle position of left tuning fork and right tuning fork, left tuning fork and right tuning fork are tapped with identical dynamics successively, is led to
It crosses decibel survey instrument respectively to measure the size of two groups of sound, convenient for the size of sound twice is distinguished, it was demonstrated that sound
Influence of the circulation way and medium of wave to Acoustic Wave Propagation improves experiment effect, improves practicability.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the left view cross section structure schematic diagram at experimental bench sliding block of the present invention；
It is marked in attached drawing：1st, ontology；2nd, sound outlet；3rd, experimental bench；4th, left tuning fork；5th, right tuning fork；6th, stent；7th, voice conducting pipe；
8th, threaded rod；9th, screwed pipe；10th, baffle；11st, external thread structure；12nd, sliding chamber；13rd, sliding block；14th, ball bearing；15th, bar shaped is led to
Hole；16th, decibel surveys instrument；17th, rubber ring；18th, U-typed metallic plate；19th, supporting rod；20th, sponge plate；21st, plank；22nd, glass
Plate.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but be not limited to the scope of the present invention.
As shown in Figure 1 to Figure 2, easy loudspeaker of the invention, including horn-like ontology 1, ontology is internally provided with
Cavity, the left end and right end of ontology are respectively arranged with voice entry and sound outlet 2, and the size of sound outlet is more than sound
The size of entrance, cavity are gradually opened around by voice entry to sound outlet；Further include experimental bench 3, left tuning fork 4, right sound
The bottom end of fork 5, stent 6, voice conducting pipe 7, threaded rod 8, screwed pipe 9 and baffle 10, left tuning fork and right tuning fork respectively with experimental bench top
The left side at end is connected with right side, and the top of the top and bottom end of stent respectively with the bottom end of voice conducting pipe and experimental bench is connect, acoustic
Pipe is provided with external thread structure 11 positioned at the right side of left tuning fork on the lateral wall of voice conducting pipe, is set at the voice entry of ontology
Internal thread structure, the external thread structure matching of internal thread structure and voice conducting pipe are equipped with, the right end of voice conducting pipe enters from the sound of ontology
It is inserted at mouthful and spiral shell is filled in the cavity of ontology, experimental bench is internally provided with lateral cunning chamber 12, and be provided in sliding intracavitary
Sliding block 13, sliding block can horizontally slip in sliding intracavitary, and the top middle portion of sliding block is provided with placing groove, be fixedly mounted in placing groove
There is a ball bearing 14, the top of experimental bench is provided with the strip through-hole 15 communicated with sliding chamber, and the bottom end of screwed pipe is from experimental bench
Top stretches to sliding intracavitary across strip through-hole and is inserted into inside ball bearing, the top of threaded rod and the center bottom of baffle
It is fixedly connected, the bottom end of threaded rod is inserted into and spiral shell is filled to inside the top of screwed pipe, and baffle is located at the right side of ontology and positioned at the right side
The left side of tuning fork, and the top of baffle is provided with decibel and surveys instrument 16；By above-mentioned setting, by tapping left tuning fork, send out
Sound wave, sound wave pass through voice conducting pipe and ontology to be spread out of by sound outlet, and surveying instrument by decibel is detected the size of sound, leads to
Rotation ontology is crossed, ontology is made to be moved left and right on voice conducting pipe, by changing the pattern length of voice conducting pipe and ontology, to sound size
Variation tested, horizontally slipped by sliding block in sliding intracavitary and baffle and decibel driven to survey instrument and move left and right, changed left
Tuning fork and decibel survey the distance between instrument, and the variation of sound size is tested, by rotating screwed pipe, baffle is rotated
Certain angle can test the reflection of sound wave, teaching method diversification, the learning interest of student be improved, to sound wave
A variety of properties demonstrated, improve teaching efficiency, improve use reliability；Baffle is driven to move left and right by mobile sliding block,
And baffle is moved to the middle position of left tuning fork and right tuning fork, left tuning fork and right tuning fork are tapped with identical dynamics successively,
Instrument is surveyed by decibel respectively to measure the size of two groups of sound, convenient for the size of sound twice is distinguished, it was demonstrated that
Influence of the circulation way and medium of sound wave to Acoustic Wave Propagation improves experiment effect, improves practicability.
The present invention easy loudspeaker, further include two groups of rubber rings 17, left tuning fork is identical with right tuning fork, left tuning fork and
The supporting rod 19 of U-typed metallic plate 18 and bottom of the right tuning fork including top sounding, top and the U-typed metallic plate of supporting rod
The sealing end connection of bottom, two groups of rubber rings are respectively sleeved on the supporting rod of left tuning fork and right tuning fork, two groups of rubber rings it is interior
The side wall respectively with two groups of supporting rods is enclosed to contact, and two groups of rubber rings can slide up and down on two groups of supporting rods respectively；Pass through
Above-mentioned setting, by adjusting two groups of rubber rings, the position on two groups of supporting rods, rubber ring can absorb a part of sound wave respectively
Vibration, so that the vibration frequency of two groups of U-typed metallic plates be adjusted, change two groups of U-typed metallic plates and send out sound wave
Tone color can carry out simulated experiment to the change of tone color, improve practicability.
The easy loudspeaker of the present invention, two groups of U-typed metallic plates, voice conducting pipe and ontology are located in same horizontal line；Pass through
Above-mentioned setting ensures the consistency of Acoustic Wave Propagation, and can be right by proficiency fixed baffle, another hand rotation screwed pipe
The height of baffle is adjusted or dismantles baffle, improves use reliability.
The easy loudspeaker of the present invention, voice conducting pipe, ontology, left tuning fork and right tuning fork are iron material matter；By above-mentioned setting,
Spread speed of the sound in iron is very fast, improves the accuracy of experiment, and cheap, saves production cost, improves practical
Property.
The easy loudspeaker of the present invention, further includes sponge plate 20, plank 21 and glass plate 22, is set on the right side wall of baffle
There is mounting groove, the size and shape of sponge plate, plank and glass plate is identical with the size and shape of mounting groove, sponge plate, wood
Plate and glass are removably mounted in mounting groove；By above-mentioned setting, by the way that sponge plate, plank and glass plate are installed successively
In mounting groove, test unlike material improves use reliability to the absorbing state of sound wave.
The easy loudspeaker of the present invention, at work, before above-mentioned action is completed, being moved into user first needs
The position wanted by tapping left tuning fork, sends out sound wave, sound wave passes through voice conducting pipe and ontology to be spread out of by sound outlet, passes through decibel
It surveys instrument to be detected the size of sound, by rotating ontology, ontology is made to be moved left and right on voice conducting pipe, by changing acoustic
The pattern length of pipe and ontology, tests the variation of sound size, is horizontally slipped by sliding block in sliding intracavitary and drives baffle
And decibel is surveyed instrument and is moved left and right, and changes left tuning fork and decibel surveys the distance between instrument, the variation of sound size is carried out
Experiment, by rotating screwed pipe, baffle is rotated a certain angle, the reflection of sound wave can be tested, teaching method is more
Sample improves the learning interest of student, and a variety of properties of sound wave are demonstrated, and improves teaching efficiency, passes through mobile sliding block band
Dynamic baffle moves left and right, and baffle is moved to the middle position of left tuning fork and right tuning fork, is tapped successively with identical dynamics
Left tuning fork and right tuning fork survey instrument by decibel and the size of two groups of sound are measured respectively, convenient for by the big of sound twice
It is small to distinguish, it was demonstrated that influence of the circulation way and medium of sound wave to Acoustic Wave Propagation improves experiment effect, by adjusting two
The position on two groups of supporting rods, rubber ring can absorb the vibration of a part of sound wave to group rubber ring respectively, so as to two groups " U "
The vibration frequency of type metallic plate is adjusted, and changes the tone color that two groups of U-typed metallic plates send out sound wave, can be to the change of tone color
Simulated experiment is carried out, by the way that sponge plate, plank and glass plate are sequentially arranged in mounting groove, test unlike material is to sound wave
Absorbing state.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and modification, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of simplicity loudspeaker, including horn-like ontology（1）, ontology（1）Be internally provided with cavity, ontology（1）A left side
End and right end are respectively arranged with voice entry and sound outlet（2）, and sound outlet（2）Size be more than voice entry it is big
Small, cavity is by voice entry to sound outlet（2）Gradually open around；It is characterized in that, further include experimental bench（3）, Zuo Yin
Fork（4）, right tuning fork（5）, stent（6）, voice conducting pipe（7）, threaded rod（8）, screwed pipe（9）And baffle（10）, the left tuning fork（4）
With right tuning fork（5）Bottom end respectively with experimental bench（3）The left side on top is connected with right side, the stent（6）Top and bottom end
Respectively with voice conducting pipe（7）Bottom end and experimental bench（3）Top connection, the voice conducting pipe（7）Positioned at left tuning fork（4）Right side,
And in voice conducting pipe（7）Lateral wall on be provided with external thread structure（11）, the ontology（1）Voice entry at be provided with interior spiral shell
Line structure, the internal thread structure and voice conducting pipe（7）External thread structure（11）Match, voice conducting pipe（7）Right end from ontology（1）
Voice entry at be inserted into and spiral shell be filled to ontology（1）Cavity in, experimental bench（3）Be internally provided with lateral cunning chamber（12）,
And in sliding chamber（12）Inside it is provided with sliding block（13）, the sliding block（13）It can be in sliding chamber（12）It inside horizontally slips, and in sliding block（13）
Top middle portion be provided with placing groove, be installed with ball bearing in the placing groove（14）, experimental bench（3）Top setting
Have and sliding chamber（12）The strip through-hole communicated（15）, the screwed pipe（9）Bottom end from experimental bench（3）Top lead to across bar shaped
Hole（15）Stretch to sliding chamber（12）It is interior and be inserted into ball bearing（14）Inside, the threaded rod（8）Top and baffle（10）
Center bottom be fixedly connected, threaded rod（8）Bottom end be inserted into and spiral shell be filled to screwed pipe（9）Top inside, the baffle
（10）Positioned at ontology（1）Right side and positioned at right tuning fork（5）Left side, and in baffle（10）Top be provided with decibel survey instrument
（16）.
2. simplicity loudspeaker as described in claim 1, which is characterized in that further include two groups of rubber rings（17）, the left tuning fork
（4）With right tuning fork（5）It is identical, left tuning fork（4）With right tuning fork（5）Include the U-typed metallic plate of top sounding（18）With
The supporting rod of bottom（19）, supporting rod（19）Top and U-typed metallic plate（18）The sealing end connection of bottom, two groups of rubbers
Cushion rubber（17）It is respectively sleeved at left tuning fork（4）With right tuning fork（5）Supporting rod（19）On, two groups of rubber rings（17）Inner ring difference
With two groups of supporting rods（19）Side wall contact, and two groups of rubber rings（17）It can be respectively in two groups of supporting rods（19）It is upper to glide
It is dynamic.
3. simplicity loudspeaker as claimed in claim 2, which is characterized in that two groups of U-typed metallic plates（18）, voice conducting pipe
（7）And ontology（1）In same horizontal line.
4. simplicity loudspeaker as claimed in claim 3, which is characterized in that the voice conducting pipe（7）, ontology（1）, left tuning fork（4）
With right tuning fork（5）It is iron material matter.
5. simplicity loudspeaker as claimed in claim 4, which is characterized in that further include sponge plate（20）, plank（21）And glass
Plate（22）, the baffle（10）Right side wall on be provided with mounting groove, the sponge plate（20）, plank（21）And glass plate（22）
Size and shape it is identical with the size and shape of mounting groove, sponge plate（20）, plank（21）It is detachably installed with glass
In mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810118848.2A CN108172081A (en) | 2018-02-06 | 2018-02-06 | Easy loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810118848.2A CN108172081A (en) | 2018-02-06 | 2018-02-06 | Easy loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108172081A true CN108172081A (en) | 2018-06-15 |
Family
ID=62513439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810118848.2A Withdrawn CN108172081A (en) | 2018-02-06 | 2018-02-06 | Easy loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108172081A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831267A (en) * | 2018-09-12 | 2018-11-16 | 青海省科学技术馆（青海省青少年科技中心） | A kind of exhibition article for demonstrating loudspeaker principle |
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| RU2084964C1 (en) * | 1995-05-19 | 1997-07-20 | Валерий Вильгельмович Майер | Device for acoustic experiments |
| CN201156325Y (en) * | 2008-01-11 | 2008-11-26 | 吴章印 | Sound generation demonstrator |
| CN204189355U (en) * | 2014-08-28 | 2015-03-04 | 马雷 | A kind of physical simulation instruments used for education |
| CN204904662U (en) * | 2015-07-23 | 2015-12-23 | 唐双 | Sound oscillation experimental facilities |
| CN206422895U (en) * | 2016-12-21 | 2017-08-18 | 福建省德化云水窑陶瓷有限公司 | Ceramic mobile phone amplifies audio amplifier |
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2018
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| RU2084964C1 (en) * | 1995-05-19 | 1997-07-20 | Валерий Вильгельмович Майер | Device for acoustic experiments |
| CN201156325Y (en) * | 2008-01-11 | 2008-11-26 | 吴章印 | Sound generation demonstrator |
| CN204189355U (en) * | 2014-08-28 | 2015-03-04 | 马雷 | A kind of physical simulation instruments used for education |
| CN204904662U (en) * | 2015-07-23 | 2015-12-23 | 唐双 | Sound oscillation experimental facilities |
| CN206422895U (en) * | 2016-12-21 | 2017-08-18 | 福建省德化云水窑陶瓷有限公司 | Ceramic mobile phone amplifies audio amplifier |
| CN206762944U (en) * | 2017-05-15 | 2017-12-19 | 陈奕龙 | A kind of multi-functional adjustable physics teaching experiment platform |
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| CN108831267A (en) * | 2018-09-12 | 2018-11-16 | 青海省科学技术馆（青海省青少年科技中心） | A kind of exhibition article for demonstrating loudspeaker principle |
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Application publication date: 20180615 |
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