CN206581419U - Noise reduction backplate - Google Patents
Noise reduction backplate Download PDFInfo
- Publication number
- CN206581419U CN206581419U CN201720305433.7U CN201720305433U CN206581419U CN 206581419 U CN206581419 U CN 206581419U CN 201720305433 U CN201720305433 U CN 201720305433U CN 206581419 U CN206581419 U CN 206581419U
- Authority
- CN
- China
- Prior art keywords
- isosceles trapezoid
- noise reduction
- bloop
- plate body
- sound wave
- 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.)
- Expired - Fee Related
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model belongs to acoustical panel technical field, discloses a kind of noise reduction backplate.It is mainly characterized in that：Including the plate body with bloop, it is arranged at intervals with that isosceles trapezoid is raised on the plate body, the base angle angle of the isosceles trapezoid is 30-85 degree, it is round table-like that the bloop in the isosceles trapezoid protruding apex plane is upper end diameter is small, lower end diameter is big.Isosceles trapezoid projection improves the intensity of noise reduction backplate, and when sound wave is reached on the outside of noise reduction backplate, a part of sound wave is entered in the silencing cotton on the inside of noise reduction backplate by bloop on plate body, another part sound wave is moved along on the outside of plate body, a part enters in silencing cotton along the bloop on the raised side of isosceles trapezoid, effect in the sound wave horizontal direction of both sides cancels each other, erasure effect is obvious, sound wave perpendicular to top plan enters after the bloop of top plan, in horn-like scattering, erasure effect is greatly enhanced.
Description
Technical field
The utility model belongs to acoustical panel technical field, more particularly to a kind of noise reduction backplate.
Background technology
In places such as airport, tunnel, noise very big machine shops, in order to reduce noise, it is to avoid noise is limited
Reverberated in space, silencing means is installed around airport or on the inside of the wall in workshop.The silencing means used at present is mainly adopted
Use following two ways：First, in silencing cotton outside mask woven wire, woven wire only plays fixed support to silencing cotton and makees
With, but silencing cotton is easily by coming off, and dust easily falls on silencing cotton, forms hardened, reduces erasure effect；Second,
The noise reduction backplate of bloop is carried in silencing cotton outside mask, noise reduction version is flat board and bloop is circular hole, though the noise reduction backplate
So solve silencing cotton to come off and dust attachment issue, but there is low intensity, the defect of erasure effect difference.
Utility model content
The technical problems to be solved in the utility model is just to provide that one kind avoids silencing cotton from coming off, intensity is big, erasure effect
Good noise reduction backplate.
To solve the above problems, the technical scheme that uses of the utility model noise reduction backplate for：Including the plate with bloop
Body, is arranged at intervals with isosceles trapezoid projection, the base angle angle of the isosceles trapezoid is 30-85 degree, described on the plate body
It is round table-like that bloop in isosceles trapezoid protruding apex plane is upper end diameter is small, lower end diameter is big.
Its additional technical feature is：
Rectangular preiection is provided with the plate body between two neighboring isosceles trapezoid is raised, the height of the rectangular preiection is
The 1/10-1/5 of the isosceles trapezoid height of projection；
Distance is 3-8 times of the raised bottom width of isosceles trapezoid between two neighboring isosceles trapezoid is raised；
It is round table-like that bloop on the raised both sides inclined-plane of the isosceles trapezoid is outside diameter is big, inside diameter is small.
Noise reduction backplate provided by the utility model compared with prior art, with advantages below：First, due to including band
There is the plate body of bloop, isosceles trapezoid projection is arranged at intervals with the plate body, the base angle angle of the isosceles trapezoid is
30-85 degree, it is round table-like that bloop in the isosceles trapezoid protruding apex plane is upper end diameter is small, lower end diameter is big,
Isosceles trapezoid projection improves the intensity of noise reduction backplate, and when sound wave is reached on the outside of noise reduction backplate, a part of sound wave passes through
Bloop enters in the silencing cotton on the inside of noise reduction backplate on plate body, and another part sound wave is moved along on the outside of plate body, is encountering isosceles
When trapezoidal raised, a part enters in silencing cotton along the bloop on the raised side of isosceles trapezoid, and isosceles trapezoid projection
Equally there is the effect in sound wave entrance, both sides sound wave horizontal direction to cancel each other in the bloop on opposite side inclined-plane, erasure effect
Substantially, and because the bloop in the isosceles trapezoid protruding apex plane is that upper end diameter is small, the circle of lower end diameter greatly
Mesa-shaped, the sound wave perpendicular to top plan enters after the bloop of top plan, and in horn-like scattering, erasure effect increases
By force；Second, due to being provided with rectangular preiection, the height of the rectangular preiection on the plate body between two neighboring isosceles trapezoid is raised
Spend for the 1/10-1/5 of the isosceles trapezoid height of projection, improve the intensity of plate body, further improve erasure effect；Third,
Because distance is 3-8 times of the raised bottom width of isosceles trapezoid between two neighboring isosceles trapezoid projection, erasure effect is carried significantly
It is high；Fourth, because the bloop on the inclined-plane of the isosceles trapezoid raised both sides is the round platform that outside diameter is big, inside diameter is small
Shape, increases aperture area, in sound wave along along inclined-plane uphill process, and sound wave easily enters in silencing cotton along bloop, further
Improve erasure effect.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model noise reduction backplate；
Fig. 2 is the sectional view of noise reduction backplate；
Fig. 3 is the sectional view of trapezoidal high spot.
Embodiment
The structure and use principle to the utility model noise reduction backplate are done into one with reference to the accompanying drawings and detailed description
Step is described in detail.
As shown in Figure 1, Figure 2 and Figure 3, the structural representation of the utility model noise reduction backplate, the utility model noise reduction backplate
Including the plate body 2 with bloop 1, isosceles trapezoid projection 3 is arranged at intervals with plate body 2, the base angle angle of isosceles trapezoid is
30-85 degree, the bloop 5 on the top plan 4 of isosceles trapezoid projection 3 is the round platform that upper end diameter is small, lower end diameter is big
Shape.Isosceles trapezoid projection 3 improves the intensity of noise reduction backplate, and when sound wave is reached on the outside of noise reduction backplate, a part of sound wave
Entered by bloop on plate body 2 in the silencing cotton on the inside of noise reduction backplate, another part sound wave is moved along the outside of plate body 2, is being touched
During to isosceles trapezoid projection 3, a part enters in silencing cotton along the bloop 7 on the side 6 of isosceles trapezoid projection 3, and this etc.
Equally there is the effect in sound wave entrance, both sides sound wave horizontal direction mutual in the bloop 7 on the trapezoidal raised opposite side inclined-plane 6 of waist
Offset, erasure effect substantially, and due to the bloop 5 on the top plan 4 of isosceles trapezoid projection 3 be upper end diameter it is small,
Big round table-like of lower end diameter, the sound wave perpendicular to top plan enters after the bloop of top plan, in horn-like scattering, disappears
Audio fruit greatly enhances.
Rectangular preiection 8 is provided with plate body 2 between two neighboring isosceles trapezoid projection 3, the height of rectangular preiection 8 is
The 1/10-1/5 of isosceles trapezoid 3 height of projection, improves the intensity of plate body, further improves erasure effect.
Distance is 3-8 times of raised 3 bottom widths of isosceles trapezoid, erasure effect between two neighboring isosceles trapezoid projection 3
Greatly improve.
As shown in figure 3, bloop 7 on the both sides inclined-plane 6 of isosceles trapezoid projection 3 is outside diameter is big, inside diameter
Small is round table-like, increases aperture area, in sound wave along along inclined-plane uphill process, and sound wave easily enters silencing cotton along bloop 7
In, further improve erasure effect.
Protection domain of the present utility model is not limited solely to above-described embodiment, as long as structure is protected with the utility model noise reduction
Hardened structure is identical, just falls the scope protected in the utility model.
Claims (4)
1. noise reduction backplate, including the plate body with bloop, it is characterised in that：Isosceles trapezoid is arranged at intervals with the plate body
Projection, the base angle angle of the isosceles trapezoid is 30-85 degree, and the bloop in the isosceles trapezoid protruding apex plane is
It is round table-like that upper end diameter is small, lower end diameter is big.
2. noise reduction backplate according to claim 1, it is characterised in that：Plate body between two neighboring isosceles trapezoid is raised
On be provided with rectangular preiection, the height of the rectangular preiection is the 1/10-1/5 of the isosceles trapezoid height of projection.
3. noise reduction backplate according to claim 1, it is characterised in that：Between two neighboring isosceles trapezoid is raised distance for etc.
3-8 times of the trapezoidal raised bottom width of waist.
4. noise reduction backplate according to claim 1, it is characterised in that：Disappearing on the inclined-plane of the isosceles trapezoid raised both sides
It is round table-like that sound hole is that outside diameter is big, inside diameter is small.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305433.7U CN206581419U (en) | 2017-03-27 | 2017-03-27 | Noise reduction backplate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305433.7U CN206581419U (en) | 2017-03-27 | 2017-03-27 | Noise reduction backplate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206581419U true CN206581419U (en) | 2017-10-24 |
Family
ID=60114212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720305433.7U Expired - Fee Related CN206581419U (en) | 2017-03-27 | 2017-03-27 | Noise reduction backplate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206581419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081265A (en) * | 2020-08-13 | 2020-12-15 | 海洋石油工程股份有限公司 | Explosion-proof structure and explosion-proof wall for offshore platform |
-
2017
- 2017-03-27 CN CN201720305433.7U patent/CN206581419U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081265A (en) * | 2020-08-13 | 2020-12-15 | 海洋石油工程股份有限公司 | Explosion-proof structure and explosion-proof wall for offshore platform |
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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 |
Granted publication date: 20171024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |