CN107217749A - A kind of wedge absorber of adjustable cavity height - Google Patents
A kind of wedge absorber of adjustable cavity height Download PDFInfo
- Publication number
- CN107217749A CN107217749A CN201710608892.7A CN201710608892A CN107217749A CN 107217749 A CN107217749 A CN 107217749A CN 201710608892 A CN201710608892 A CN 201710608892A CN 107217749 A CN107217749 A CN 107217749A
- Authority
- CN
- China
- Prior art keywords
- base portion
- hook
- wedge absorber
- adjustable
- adjustment mechanism
- 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.)
- Withdrawn
Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
- E04B2001/8419—Acoustical cones or the like, e.g. for anechoic chambers
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
Present invention is disclosed a kind of wedge absorber of adjustable cavity height, including base portion (1) and be connected with the base portion (1) split portion (2) and hook (3), it is characterised in that：The wedge absorber of the adjustable cavity height also includes the height adjustment mechanism (4) being connected between the hook (3) and the base portion (1), the distance between height adjustment mechanism (4) adjustable hook (3) and the base portion (1).The height adjustment mechanism (3) includes the sleeve (5) being connected with the base portion (1) and the adjusting rod (6) being connected with the hook (3), and the sleeve (5) is threadedly coupled with the adjusting rod (6).The wedge absorber of the present invention can adjust the distance between wedge absorber and metope, so as to change the erasure effect of anechoic chamber and the size of anechoic chamber.
Description
Technical field
The present invention relates to a kind of wedge absorber of adjustable cavity height.
Background technology
To make the acoustic impedance between air and sound-absorbing material realize gradually transition, the good impedance matching of acquisition and acoustically effective
And design wedgelike, the sound absorber referred to as wedge absorber with very high acoustic absorption coefficient being made.Wedge absorber is a kind of special suction
Sound body, it requires that the sound wave on its incident surface is almost absorbed entirely.Wedge absorber is made up of base portion and the portion of splitting, and base portion cuts for bottom
Face constant part, the portion of splitting is section gradually augmenting portion since tip.Because the portion section of splitting of wedge absorber gradually increases from small
Greatly, it is allowed to match with air characteristics impedance comparison, so as to reach that incident acoustic wave almost has no to be absorbed entirely reflectingly.General sound absorption
Wedge uses hook form, and completion is connected with the built-in fitting that wall is pre-set and is installed, its distribution is closely knit, neat.During installation,
The air layer generally left between wedge absorber and wall in cavity, cavity has considerable influence, generally, air to sound acoustic absorptivity
Layer is bigger, and acoustic absorptivity is higher.However, existing wedge absorber hook is all fixedly connected with base portion, it is impossible to adjust wedge absorber with
The thickness of air layer between wall so that anechoic chamber's erasure effect is single, and the volume size of unadjustable anechoic chamber, it is various
Property is poor.
The content of the invention
It is an object of the invention to can adjust the suction of cavity height there is provided a kind of for drawbacks described above of the prior art
Sound wedge, it can easily adjust the distance between wedge absorber and wall.
For achieving the above object, present invention employs following technical scheme：A kind of sound absorption of adjustable cavity height
Wedge, including base portion and be connected with the base portion split portion and hook, the wedge absorber of the adjustable cavity height is also wrapped
Include be connected to it is described hook the base portion between height adjustment mechanism, the height adjustment mechanism adjustable hook with it is described
The distance between base portion.
In addition, the present invention also proposes following attached technical scheme：
The height adjustment mechanism includes the sleeve being connected with the base portion and the adjusting rod being connected with the hook, described
Sleeve is threadedly coupled with the adjusting rod.
Compared to prior art, the advantage of the invention is that：The wedge absorber hook of the present invention with base portion apart from adjustable, from
And the distance between adjustable wedge absorber and the wall of installation so that the erasure effect of anechoic chamber is adjustable；Without additionally purchasing
Other kinds of wedge absorber, reduces cost；Anechoic chamber's volume size can be adjusted, the need of different size test product are met
Ask.
Brief description of the drawings
Fig. 1 is the front view and left view of the wedge absorber of the adjustable cavity height of the present invention.
Embodiment
Technical solution of the present invention is further non-limitingly described in detail below in conjunction with preferred embodiment and its accompanying drawing.
As shown in figure 1, what the wedge absorber of adjustable cavity height of the present invention was connected including base portion 1, with base portion 1
Split portion 2, hook 3 and the height adjustment mechanism 4 being connected between base portion 1 and hook 3.Height adjustment mechanism 4 includes being fixed on
Internal thread is provided with the sleeve 5 of base portion 1 and the adjusting rod 6 connected with hook 3, sleeve 5, adjusting rod 6 is provided with to match with internal thread
External screw thread, pass through rotation adjusting lever 6 or hook 3, you can regulation hook 3 is the distance between with base portion 1.During installation, hook 3
Mutually linked with the built-in fitting that is pre-set on anechoic chamber's wall, wedge absorber is attached on wall, base portion 1 and installation place wall
Between form cavity, generally, cavity is bigger, and acoustic absorptivity is higher, and the overall sound-absorbing effect in anechoic chamber is better.Adjusted by height
Mechanism 4 can change the size of cavity, so as to adjust the sound-absorbing effect of anechoic chamber.Height adjustment mechanism 4 is not limited to screw thread company
Connect, other adjustment structures are also within the scope of the present invention.
The wedge absorber of the adjustable cavity height of the present invention is inhaled by adjusting the change of the distance between hook 3 and base portion 1
Sound wedge and the size for installing cavity between wall, so that the erasure effect of anechoic chamber is adjusted, without extra buying other types
Wedge absorber；The volume size of anechoic chamber can be changed in addition, the demand of different size test product is met.
It is pointed out that the technical concepts and features of above-mentioned preferred embodiment only to illustrate the invention, its object is to
Person skilled in the art can understand present disclosure and implement according to this, the protection of the present invention can not be limited with this
Scope.Any equivalent change or modification in accordance with the spirit of the invention, should all be included within the scope of the present invention.
Claims (2)
1. a kind of wedge absorber of adjustable cavity height, including base portion (1) and be connected with the base portion (1) split portion (2)
With hook (3), it is characterised in that：The wedge absorber of the adjustable cavity height also includes being connected to the hook (3) and institute
State the height adjustment mechanism (4) between base portion (1), height adjustment mechanism (4) adjustable hook (3) and the base portion (1)
The distance between.
2. according to the wedge absorber that cavity height is can adjust described in claim 1, it is characterised in that：The height adjustment mechanism
(3) include the sleeve (5) that is connected with the base portion (1) and the adjusting rod (6) being connected with the hook (3), the sleeve (5) and
Adjusting rod (6) threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710608892.7A CN107217749A (en) | 2017-07-24 | 2017-07-24 | A kind of wedge absorber of adjustable cavity height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710608892.7A CN107217749A (en) | 2017-07-24 | 2017-07-24 | A kind of wedge absorber of adjustable cavity height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107217749A true CN107217749A (en) | 2017-09-29 |
Family
ID=59953896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710608892.7A Withdrawn CN107217749A (en) | 2017-07-24 | 2017-07-24 | A kind of wedge absorber of adjustable cavity height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107217749A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867986A (en) * | 2018-07-02 | 2018-11-23 | 长春理工大学 | Combined frequency-change acoustic tile |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004013427A1 (en) * | 2002-07-31 | 2004-02-12 | Toyota Jidosha Kabushiki Kaisha | Sound-absorbing structure and sound-absorbing unit |
| CN201496128U (en) * | 2009-02-13 | 2010-06-02 | 林嘉祥 | Wedge staggered silencer |
| CN101967858A (en) * | 2010-08-30 | 2011-02-09 | 北京科奥克声学技术有限公司 | Wedge absorber of metal orifice plate |
| CN201893227U (en) * | 2010-11-30 | 2011-07-06 | 浙江大学 | Ventilation and denoising device used in ultra-high voltage converter transformer |
| CN103485430A (en) * | 2013-09-10 | 2014-01-01 | 苏州岸肯电子科技有限公司 | Anechoic chamber |
| CN203782599U (en) * | 2014-03-18 | 2014-08-20 | 江苏新光环保工程有限公司 | Sharp chopping type metallic sound barrier |
| CN205475782U (en) * | 2016-01-25 | 2016-08-17 | 江苏英思达科技有限公司 | Metal wedge |
-
2017
- 2017-07-24 CN CN201710608892.7A patent/CN107217749A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004013427A1 (en) * | 2002-07-31 | 2004-02-12 | Toyota Jidosha Kabushiki Kaisha | Sound-absorbing structure and sound-absorbing unit |
| CN201496128U (en) * | 2009-02-13 | 2010-06-02 | 林嘉祥 | Wedge staggered silencer |
| CN101967858A (en) * | 2010-08-30 | 2011-02-09 | 北京科奥克声学技术有限公司 | Wedge absorber of metal orifice plate |
| CN201893227U (en) * | 2010-11-30 | 2011-07-06 | 浙江大学 | Ventilation and denoising device used in ultra-high voltage converter transformer |
| CN103485430A (en) * | 2013-09-10 | 2014-01-01 | 苏州岸肯电子科技有限公司 | Anechoic chamber |
| CN203782599U (en) * | 2014-03-18 | 2014-08-20 | 江苏新光环保工程有限公司 | Sharp chopping type metallic sound barrier |
| CN205475782U (en) * | 2016-01-25 | 2016-08-17 | 江苏英思达科技有限公司 | Metal wedge |
Non-Patent Citations (1)
| Title |
|---|
| 王智、郭静: "《音响工程设计》", 31 July 2013, 云南大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108867986A (en) * | 2018-07-02 | 2018-11-23 | 长春理工大学 | Combined frequency-change acoustic tile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170929 |