CN202495247U - Diversion silencing cover - Google Patents
Diversion silencing cover Download PDFInfo
- Publication number
- CN202495247U CN202495247U CN2012200853496U CN201220085349U CN202495247U CN 202495247 U CN202495247 U CN 202495247U CN 2012200853496 U CN2012200853496 U CN 2012200853496U CN 201220085349 U CN201220085349 U CN 201220085349U CN 202495247 U CN202495247 U CN 202495247U
- Authority
- CN
- China
- Prior art keywords
- air chamber
- silencing cover
- sound
- micropores
- upper plate
- 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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Abstract
The utility model discloses a silencing apparatus, and especially discloses a diversion silencing cover. The diversion silencing cover comprises a trumpet-shaped silencing cover. A plurality of micropores are provided in the silencing cover. A barrel-shaped air chamber is provided on the bottom of the silencing cover. A fastening nut is arranged at the bottom of the air chamber, an air chamber upper plate is arranged on the top of the air chamber, and a purging pipe is threadedly connected with the fastening nut. The purging pipe penetrates from the air chamber upper plate, and extends to the top of the silencing cover. A plurality of sound-absorbing wedges are arranged on the upper surface of the air chamber upper plate. The roots of the sound-absorbing wedges are connected to the purging pipe. The tops of the sound-absorbing wedges are connected to the inner side of the silencing cover. The diameters of the micropores are 1mm. The micropores are arranged with spaces of 5mm. The micropores are distributed in shapes of triangles. The number of the sound-absorbing wedges is 4. The silencing cover can also be manufactured into a cylinder shape. Because the plurality of micropores are provided in the silencing cover, a function of noise audio frequency increasing is achieved, so that severe noise can not be detected by human. With the sound-absorbing wedges, noise energy is greatly reduced. The air chamber has a function of an air spring, and is used for reducing noise intensity.
Description
Technical field
The utility model is a kind of noise-abatement equipment, and particularly a kind of guide flow noise elimination cover, guide flow noise elimination cover are used for eliminating that pressurized air purges machinofacture and at the noise that process produced of clean metal bits, powder, greasy dirt.
Background technology
The surface of machinofacture is all very out-of-flatnesses generally; And several holes of corner angle are arranged more; When adopting pressurized air it to be purged, have very big noise pollution, in order to tackle noise with higher spray speed; Generally be the energy that utensils such as employing dividing plate, cord consume the part noise, but effect is very undesirable.
Summary of the invention
The purpose of the utility model is in order to overcome the existing not good defective of noise elimination utensil erasure effect, to invent the guide flow noise elimination cover that a kind of utilization " Huygens " shift frequency principle is carried out noise reduction.
The purpose of the utility model realizes as follows: said guide flow noise elimination cover, comprise a flaring sound proof housing, and sound proof housing is provided with many micropores; The bottom of sound proof housing is provided with the air chamber of tubbiness; The bottom of air chamber is provided with clamp nut, and the top of air chamber is provided with the air chamber upper plate, is bolted with scavenging duct on the clamp nut; Scavenging duct passes and extends to always the top of sound proof housing from the air chamber upper plate; On the air chamber upper plate, be provided with a plurality of wedge absorbers, the root of wedge absorber is connected on the scavenging duct, and the top of wedge absorber is connected the inboard of sound proof housing.
Said micro-pore diameter 1mm, spacing 5mm is triangularly arranged.
The number of said wedge absorber is four.
Said sound proof housing also can be made cylindric.
The good effect of the utility model is following: because sound proof housing is provided with many micropores, micropore plays the effect that improves the noise audio frequency, so that the people discover less than strong noise; Wedge absorber can greatly reduce noise energy; Air chamber plays the effect of " air spring ", and it can weaken the intensity of noise.
Description of drawings
Fig. 1 is the utility model structural drawing
Fig. 2 is that micropore is arranged partial schematic diagram
Fig. 3 is the wedge absorber installation diagram
Among the figure: 1 sound proof housing, 2 micropores, 3 air chambers
4 clamp nuts, 5 air chamber upper plates, 6 scavenging ducts
7 wedge absorbers
Embodiment
Shown in Figure 3 like Fig. 1 Fig. 2, said guide flow noise elimination cover comprises a flaring sound proof housing 1; Sound proof housing 1 is provided with many micropores 2, and the bottom of sound proof housing 1 is provided with the air chamber 3 of tubbiness, and the bottom of air chamber 3 is provided with clamp nut 4; The top of air chamber 2 is provided with air chamber upper plate 5; Be bolted with scavenging duct 6 on the clamp nut 4, scavenging duct 6 passes and extends to always the top of sound proof housing 1 from air chamber upper plate 5, on air chamber upper plate 5, is provided with a plurality of wedge absorbers 7; The root of wedge absorber 7 is connected on the scavenging duct 5, and the top of wedge absorber 7 is connected the inboard of sound proof housing 1.
Said micropore 2, diameter 1mm, spacing 5mm is triangularly arranged.
The number of said wedge absorber 7 is four.
Said sound proof housing 1 also can be made cylindric.
During use, need only be used to hold silencing pot, and silencing pot is pointed to noise go out, just can effectively abating the noise.
Claims (4)
1. guide flow noise elimination cover, it is characterized in that: it comprises a flaring sound proof housing, and sound proof housing is provided with many micropores; The bottom of sound proof housing is provided with the air chamber of tubbiness; The bottom of air chamber is provided with clamp nut, and the top of air chamber is provided with the air chamber upper plate, is bolted with scavenging duct on the clamp nut; Scavenging duct passes and extends to always the top of sound proof housing from the air chamber upper plate; On the air chamber upper plate, be provided with a plurality of wedge absorbers, the root of wedge absorber is connected on the scavenging duct, and the top of wedge absorber is connected the inboard of sound proof housing.
2. guide flow noise elimination cover according to claim 1 is characterized in that: said micro-pore diameter 1mm, spacing 5mm is triangularly arranged.
3. guide flow noise elimination cover according to claim 1 is characterized in that: the number of said wedge absorber is four.
4. guide flow noise elimination cover according to claim 1 is characterized in that: said sound proof housing also can be made cylindric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200853496U CN202495247U (en) | 2012-03-09 | 2012-03-09 | Diversion silencing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200853496U CN202495247U (en) | 2012-03-09 | 2012-03-09 | Diversion silencing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495247U true CN202495247U (en) | 2012-10-17 |
Family
ID=47001461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200853496U Expired - Fee Related CN202495247U (en) | 2012-03-09 | 2012-03-09 | Diversion silencing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638347A (en) * | 2017-03-04 | 2017-05-10 | 河南东海复合材料有限公司 | Glass steel noise barrier with function of reducing noise diffraction |
-
2012
- 2012-03-09 CN CN2012200853496U patent/CN202495247U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638347A (en) * | 2017-03-04 | 2017-05-10 | 河南东海复合材料有限公司 | Glass steel noise barrier with function of reducing noise diffraction |
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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 |
Granted publication date: 20121017 Termination date: 20140309 |