CN205443985U - Noise remove device - Google Patents
Noise remove device Download PDFInfo
- Publication number
- CN205443985U CN205443985U CN201620225013.3U CN201620225013U CN205443985U CN 205443985 U CN205443985 U CN 205443985U CN 201620225013 U CN201620225013 U CN 201620225013U CN 205443985 U CN205443985 U CN 205443985U
- Authority
- CN
- China
- Prior art keywords
- cambered surface
- cavity
- noise
- shell
- glass
- 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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- Building Environments (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a noise remove device. The sound silencer is inhaled to the tradition can't carry out the effective attenuation to low frequency noise. The utility model discloses inhaling the sound ware and being equipped with double -deck cambered surface shell, double -deck cambered surface includes outer cambered surface, inlayer cambered surface, and outer cambered surface, inlayer cambered surface have been covered with the micropore. Form the cavity that holds sound absorbing material between outer cambered surface and the inlayer cambered surface. Shell and support frame fixed connection, the support frame is formed by polylith glass steel sheet interval arrangement, and the glass steel sheet is equipped with unsmooth crude surface, and the height of glass steel sheet is steadilyd decrease to both sides by the centre. The utility model discloses set up the cotton conduct sound absorbing material of glass in the cavity, the thickness broad of two lateral cavity on the shell body can guarantee that the cotton distance of noise process glass is longer simultaneously, absorbs the residual noise in the cavity better. Adjust suitable glass steel sheet interval, when making it to satisfy the odd number times of 12 wavelength, interfere the effect showing the most to the mesh of making an uproar falls in furthest's realization wide band.
Description
Technical field
This utility model relates to silencing means, is specifically related to a kind of noise absorber, belongs to noise reduction technology field.
Background technology
Noise absorber is commonly used to be arranged on overpass and highway both sides, plays a role for highway and neighbouring residential block noise reduction.By the path difference principle of ray acoustics, sound barrier is the highest, and its noise reduction is the best.But the highest meeting of sound barrier brings many negative effects: 1. along with sound barrier height itself increases, its wind resistance area increases sharply, and train aerodynamic-force and environment Wind effects are greatly reinforced；2., along with the increase of sound barrier height, foundation of road bed strengthens, bridge static and dynamic loadings increases the weight of, so that construction costs is greatly increased.
Road construction personnel wish to design a kind of without increasing sound barrier height, can play the suction muffler of good noise reduction.A kind of suction muffler, including shell, cavity, described shell has been covered with cavity.This sound-absorbing canceller can allow noise once decay by the cavity on shell, but low frequency noise cannot be carried out effective attenuation.A kind of noise absorber with wideband decrease of noise functions that this utility model designs for above-mentioned the deficiencies in the prior art just.
Utility model content
The purpose of this utility model is to make up the deficiencies in the prior art, it is provided that a kind of easy accessibility, have wideband decrease of noise functions, the suction muffler of length in service life.
In order to reach the purpose of this utility model, technical scheme is as follows:
A kind of noise absorber, includes column, shock absorber, and described shock absorber is positioned at column top, and described shock absorber is provided with double-deck cambered surface shell, and described double-deck cambered surface includes that outer layer cambered surface, internal layer cambered surface, outer layer cambered surface, internal layer cambered surface have been covered with micropore；The cavity accommodating sound-absorbing material is formed between outer layer cambered surface and internal layer cambered surface；Described shell is fixing with bracing frame to be connected, and support frame as described above is spaced by multiple pieces of glass steel plate and forms, and described glass epoxy is provided with concavo-convex coarse surface, and the height of described glass epoxy is successively decreased to both sides by centre.
Described internal layer cambered surface inwall is provided with and is symmetrical in the some to claw of central axis, and at bracing frame correspondence jaw position, cooperation is provided with some to bayonet lock.
Described outer layer cambered surface, internal layer cambered surface are made up of galvanized sheet.
In described cavity, sound-absorbing material is glass cotton.
The thickness of described shell both sides cavity is more than the thickness of shell middle chamber.
The adjacent distance between glass epoxy is 10-17cm.
Support frame as described above is fixedly connected on column by " several " character form component, is provided with osculum bottom " several " character form component.
Compared with prior art, this utility model has a following beneficial effect:
1, this utility model noise absorber, uses double-deck cambered surface shell, is provided with micropore, utilizes sound diffraction principle that noise is carried out preliminary absorption, make medium-high frequency noise progressively decay after cambered surface roundtrip in cavity on shell.
2, owing to arranging glass cotton in cavity as sound-absorbing material, the thickness of shell both sides cavity is wider simultaneously, can guarantee that noise is longer through the distance of glass cotton, preferably absorbs the residual noise in cavity.
3, for noise medium wavelength longer portion, i.e. low frequency noise part, after decaying through shell, small part can be in being mapped to internal layer cambered surface, and then between multiple pieces of glass steel plate, produce the interference of sound wave, regulate suitable glass epoxy spacing, when being allowed to the odd-multiple meeting 1/2 wavelength, interference effect is the most notable, and glass epoxy is provided with concavo-convex coarse surface simultaneously, thus realizes the purpose of wideband noise reduction to greatest extent.
4, this utility model uses galvanized sheet to make shell, good corrosion resistance." several " character form component of bottom hollow out, both convenient dismounting are set between bracing frame and column, alluvial rainwater in shock absorber can be discharged again in time, extend service life.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model；
Fig. 2 is the removal enlarged drawing of I part in Fig. 1.
In above-mentioned accompanying drawing, 1, column, 2, shock absorber, 3, outer layer cambered surface, 4, internal layer cambered surface, 5, micropore, 6, glass cotton, 7, glass epoxy, 8, bracing frame, 9, claw, 10, bayonet lock, 11, " several " character form component.
Detailed description of the invention
Below in conjunction with the accompanying drawings, detailed description of the invention of the present utility model is further described.
As shown in Figure 1 and Figure 2, this utility model includes column 1, shock absorber 2, shock absorber 2 is positioned at column 1 top, shock absorber 2 is provided with double-deck cambered surface shell, double-deck cambered surface includes outer layer cambered surface 3, internal layer cambered surface 4, outer layer cambered surface 3, internal layer cambered surface 4 are made up of galvanized sheet, and outer layer cambered surface 3, internal layer cambered surface 4 have been covered with micropore 5.Forming the cavity accommodating sound-absorbing material between outer layer cambered surface 3 and internal layer cambered surface 4, in cavity, sound-absorbing material is glass cotton 6.The thickness of shell both sides cavity is more than the thickness of shell middle chamber.
Being connected as in figure 2 it is shown, shell is fixing with bracing frame 8, internal layer cambered surface 4 inwall is provided with and is symmetrical in the some to claw 9 of central axis, and bracing frame 8 corresponding claw 9 position cooperation is provided with some to bayonet lock 10.
Forming as it is shown in figure 1, bracing frame 8 is spaced by multiple pieces of glass steel plate 7, glass epoxy 7 is provided with concavo-convex coarse surface, and the height of glass epoxy 7 is successively decreased to both sides by centre.The adjacent distance between glass epoxy 7 is 10-17cm.Bracing frame 8 is fixedly connected on column 1 by " several " character form component 11, is provided with osculum (not shown) bottom " several " character form component 11.
This utility model is provided with micropore 5 on shell, makes medium-high frequency noise progressively decay after cambered surface roundtrip in cavity.Owing to arranging glass cotton 6 in cavity as sound-absorbing material, the thickness of shell both sides cavity is wider simultaneously, can guarantee that noise is longer through the distance of glass cotton 6, preferably absorbs the residual noise in cavity.Regulating suitable glass epoxy 7 spacing, when being allowed to the odd-multiple meeting 1/2 wavelength, interference effect is the most notable, thus realizes the purpose of wideband noise reduction to greatest extent.
This utility model uses galvanized sheet to make shell, good corrosion resistance." several " character form component 11 of bottom hollow out, i.e. convenient dismounting are set between bracing frame 8 and column 1, alluvial rainwater in shock absorber 2 can be discharged again in time, extend service life.
Claims (7)
1. a noise absorber, including column, shock absorber, described shock absorber is positioned at column top, it is characterised in that described shock absorber is provided with double-deck cambered surface shell, described double-deck cambered surface includes that outer layer cambered surface, internal layer cambered surface, outer layer cambered surface, internal layer cambered surface have been covered with micropore；The cavity accommodating sound-absorbing material is formed between outer layer cambered surface and internal layer cambered surface；Described shell is fixing with bracing frame to be connected, and support frame as described above is spaced by multiple pieces of glass steel plate and forms, and described glass epoxy is provided with concavo-convex coarse surface, and the height of described glass epoxy is successively decreased to both sides by centre.
A kind of noise absorber the most according to claim 1, it is characterised in that: described internal layer cambered surface inwall is provided with and is symmetrical in the some to claw of central axis, and at bracing frame correspondence jaw position, cooperation is provided with some to bayonet lock.
A kind of noise absorber the most according to claim 1, it is characterised in that: described outer layer cambered surface, internal layer cambered surface are made up of galvanized sheet.
4. according to a kind of noise absorber described in any one of claims 1 to 3, it is characterised in that: in described cavity, sound-absorbing material is glass cotton.
A kind of noise absorber the most according to claim 4, it is characterised in that: the thickness of described shell both sides cavity is more than the thickness of shell middle chamber.
A kind of noise absorber the most according to claim 4, it is characterised in that: the adjacent distance between glass epoxy is 10-17cm.
A kind of noise absorber the most according to claim 4, it is characterised in that: support frame as described above is fixedly connected on column by " several " character form component, is provided with osculum bottom " several " character form component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620225013.3U CN205443985U (en) | 2016-03-23 | 2016-03-23 | Noise remove device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620225013.3U CN205443985U (en) | 2016-03-23 | 2016-03-23 | Noise remove device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205443985U true CN205443985U (en) | 2016-08-10 |
Family
ID=56574784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620225013.3U Expired - Fee Related CN205443985U (en) | 2016-03-23 | 2016-03-23 | Noise remove device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205443985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981847A (en) * | 2021-10-29 | 2022-01-28 | 山西尚风抑风墙科技有限公司 | Sound barrier sound absorption cap |
-
2016
- 2016-03-23 CN CN201620225013.3U patent/CN205443985U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113981847A (en) * | 2021-10-29 | 2022-01-28 | 山西尚风抑风墙科技有限公司 | Sound barrier sound absorption cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160810 Termination date: 20210323 |