CN206477260U - Circular hole sound-absorbing screen - Google Patents
Circular hole sound-absorbing screen Download PDFInfo
- Publication number
- CN206477260U CN206477260U CN201720020671.3U CN201720020671U CN206477260U CN 206477260 U CN206477260 U CN 206477260U CN 201720020671 U CN201720020671 U CN 201720020671U CN 206477260 U CN206477260 U CN 206477260U
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- CN
- China
- Prior art keywords
- sound
- sound absorption
- baffle
- circular hole
- absorption panel
- 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.)
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model is related to railway, road communications vocation field of Environment Protection, and there is provided a kind of circular hole sound-absorbing screen.Including a sound absorption panel, a sound absorption backboard, first baffle and second baffle, the sound absorption panel, sound absorption backboard and first baffle, second baffle are interconnected to form the frame chamber of a closing, sound absorber is provided with the frame chamber, wherein, the panel that absorbs sound is continuous concavo-convex and cross-sectional sizes identical metal form, and the outer surface of the sound absorption panel is provided with circular hole of the plural number through the sound absorption panel.The outer surface for the panel that absorbs sound is arranged to equal sized male and fomale(M＆F) by the utility model, change existing sound-absorbing screen appearance surfaces, and a plurality of circular holes are set on the surface of sound absorption panel, make noise by being absorbed in the sound absorber inside circular hole entrance, so as to reach good noise reduction, with high practical value.
Description
Technical field
The utility model is related to railway, road communications vocation field of Environment Protection, and in particular to a kind of circular hole sound-absorbing screen.
Background technology
The surface of current sound-absorbing screen is in plane, using filling sucting sound material system in the spraying of metallic plate through hole more than sound-absorbing screen
Form, the surface of sound-absorbing screen there are many apertures, and sound enters after aperture, penetrates into inside sound-absorbing material and propagate forward, inhaled
After sound material absorbs, defening effect is reached.The noise reduction effect of the sound-absorbing screen and the frequency content relation of noise are very big, to more than
The noise reduction effect of the 2000Hz 1000Hz of high frequency acoustic ratio 800 1 or so intermediate frequency sound will get well, but for 25Hz or so all-bottom sound
Then because wave length of sound is long and is easy to the diffraction above barrier and goes over, so effect is just poor.Therefore, need to be to prior art
Improved.
Utility model content
, can not be complete to solve noise now there is provided a kind of circular hole sound-absorbing screen to overcome the defect present in prior art
The problem of high-fall low or basic absorption.
The utility model provides a kind of circular hole sound-absorbing screen, including a sound absorption panel, a sound absorption backboard, first baffle and the
Two baffle plates, the sound absorption panel, sound absorption backboard and first baffle, second baffle are interconnected to form the frame chamber of a closing, described
Provided with sound absorber in frame chamber, wherein, the sound absorption panel is continuously concavo-convex and cross-sectional sizes identical metal form, and the suction
The outer surface of sound panel runs through the circular hole of the sound absorption panel provided with plural number.
In terms of existing technologies, the outer surface for the panel that absorbs sound is arranged to equal sized bumps by the utility model
Face, changes existing sound-absorbing screen appearance surfaces, and sets a plurality of circular holes on the surface of sound absorption panel, noise is passed through the circle
Hole is absorbed in the sound absorber inside, so that good noise reduction has been reached, with high practical value.
Further, the sound absorption panel is one time punching molded by machine.Attractive in appearance and manufacture quickly effect is reached
Really.
Further, the sound absorption panel upper recess surface is identical with the depth on convex surface.Identical depth is set to make the effect of noise reduction
Fruit is average, so that noise reduction reaches more preferably.
Further, the sound absorption panel is connected with the first baffle, second baffle rivet clasp respectively.Connected by rivet clasp
Realize and fit together perfectly, it is ensured that the globality and good noise reduction of metal circular hole sound-absorbing screen.
Brief description of the drawings
Fig. 1 is the sound absorption panel of the utility model circular hole sound-absorbing screen and the side structure schematic diagram of sound absorption backboard；
Fig. 2 is the overall diagrammatic cross-section of the utility model circular hole sound-absorbing screen；
Fig. 3 is the overall structure stereogram figure of the utility model convex sound-absorbing screen.
Reference in correspondence Figure of description is with reference to as follows：
Absorb sound the sound absorption of panel 1, one backboard 2, first baffle 3, second baffle 4, sound absorber 5, circular hole 6.
Embodiment
In order that technological means, creation feature, reached purpose and effect that utility model is realized are easy to understand, below
With reference to accompanying drawing, the utility model is expanded on further.
The utility model provides a kind of circular hole sound-absorbing screen, as shown in Figures 1 and 2, including a sound absorption panel 1, one absorbs sound
Backboard 2, first baffle 3 and second baffle 4, sound absorption panel 1 are the metallic plates such as galvanized sheet, aluminium sheet, color steel, iron plate, can basis
User needs to spray a variety of colors, and is molded with sound absorption backboard 2 by professional machines integrated punching, reaches the outward appearance of male and fomale(M＆F)
It is required that；Sound absorption panel 1, sound absorption backboard 2 are interconnected to form with first baffle 3, second baffle 4 in the frame chamber of a closing, frame chamber
Provided with sound absorber 5, sound absorber 5 can be made up of fibrous material, it is easy to absorb noise, wherein, section of the male and fomale(M＆F) for the panel 1 that absorbs sound
Face size and concavo-convex depth all same, make the effect of noise reduction be averaged, and with reference to shown in Fig. 3, the outer surface of sound absorption panel 1 is provided with multiple
Sequence wears the circular hole 6 of sound absorption panel 1.
In addition, panel 1 is connected with first baffle 3, the rivet clasp of second baffle 4 respectively in order that noise reduction more preferably, will absorb sound,
Realized and fitted together perfectly by rivet clasp connection, it is ensured that the globality and good noise reduction of metal circular hole sound-absorbing screen.If no
Connected with rivet clasp and can also be used welding or commonly fixed mode to connect, directly reached stable connection and be easy to noise reduction.
Specifically, when in use, when noise is by sound absorption panel 1, substantial amounts of noise can be absorbed in circular hole 6, due in
Between be a thick layer of sound absorber 5, noise, which is trapped into behind the inside, is difficult outwards spilling, so that the intake of noise is reduced, by recessed
A small amount of noise is reflected on convex surface, reaches good noise reduction.Metal circular hole sound-absorbing screen maintenance cost is low simultaneously, non-aging,
Service life is long, it is ensured that on the premise of sound absorption, defening effect, is characterized in making, installs simple, and then with high reality
With value.
The specific embodiment of utility model is described above.It is to be appreciated that utility model is not limited to
Above-mentioned particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as being given with the common mode in this area
To implement；Those skilled in the art, which can make various deformations or amendments within the scope of the claims and make, some simply to push away
Drill, deform or replace, this has no effect on the substantive content of utility model.
Claims (4)
1. a kind of circular hole sound-absorbing screen, it is characterised in that：Including a sound absorption panel, a sound absorption backboard, first baffle and second baffle,
The sound absorption panel, sound absorption backboard and first baffle, second baffle are interconnected to form in the frame chamber of a closing, the frame chamber and set
There is sound absorber, wherein, the sound absorption panel is continuous concavo-convex and cross-sectional sizes identical metal form, and the sound absorption panel
Outer surface runs through the circular hole of the sound absorption panel provided with plural number.
2. circular hole sound-absorbing screen as claimed in claim 1, it is characterised in that：The sound absorption panel is once struck out by machine
Type.
3. circular hole sound-absorbing screen as claimed in claim 1, it is characterised in that：The sound absorption panel upper recess surface and the depth phase on convex surface
Together.
4. circular hole sound-absorbing screen as claimed in claim 2, it is characterised in that：It is described sound absorption panel respectively with the first baffle,
Second baffle rivet clasp is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720020671.3U CN206477260U (en) | 2017-01-09 | 2017-01-09 | Circular hole sound-absorbing screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720020671.3U CN206477260U (en) | 2017-01-09 | 2017-01-09 | Circular hole sound-absorbing screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206477260U true CN206477260U (en) | 2017-09-08 |
Family
ID=59750712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720020671.3U Active CN206477260U (en) | 2017-01-09 | 2017-01-09 | Circular hole sound-absorbing screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206477260U (en) |
-
2017
- 2017-01-09 CN CN201720020671.3U patent/CN206477260U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |