CN204966044U - Muffler - Google Patents
Muffler Download PDFInfo
- Publication number
- CN204966044U CN204966044U CN201520611809.8U CN201520611809U CN204966044U CN 204966044 U CN204966044 U CN 204966044U CN 201520611809 U CN201520611809 U CN 201520611809U CN 204966044 U CN204966044 U CN 204966044U
- Authority
- CN
- China
- Prior art keywords
- cotton layer
- plate body
- sound
- acoustical cotton
- inner 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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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model provides a pair of muffler, first inhale the cotton layer of sound cotton layer is inhaled with the second and on respectively the package be equipped with a water proof membrane and the 2nd water proof membrane, a water proof membrane and the 2nd water proof membrane play the first cotton layer of sound of inhaling of protection respectively and inhale the effect on the cotton layer of sound with the second, thereby avoid first and inhale the phenomenon of inhaling the air of the cotton layer suction humidity of sound with the second and being out of shape reduction absorbing effect in the cotton layer of sound, a water proof membrane and the 2nd water proof membrane all around respectively the cladding have first metal mesh and a second metal mesh, first metal mesh and second metal mesh play respectively and support the first effect of inhaling the cotton layer of sound and second and inhaling the cotton layer of sound, have strengthened the first stability of inhaling the cotton layer of sound and second and inhaling the cotton layer of sound, have further avoided first and inhale cotton layer of sound and second to inhale the phenomenon of sound cotton layer deformation, have increased that first inhale sound cotton layer and sound cotton layer absorbing effect is inhaled to the second.
Description
Technical field
The utility model relates to a kind of sound suppressor.
Background technology
At present, sound suppressor is the instrument stopping noise transmission, but existing acoustic wave filter structure is complicated, and soundproof effect is poor, and cost is high, is unfavorable for large-scale production.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of structure simple and the good sound suppressor of soundproof effect.
The utility model realizes like this, a kind of sound suppressor, comprise a cylindrical outer plate body, the first acoustical cotton layer is filled with in described outer plate body, described first acoustical cotton layer is coated with one first waterproofing protection film, described first waterproofing protection film is coated with one first wire netting, described outer plate body offers one axially arrange and run through the through hole of described outer plate body, described through-hole wall offers the first perforation of multiple even setting, a cylindrical inner plate body vertically arranged is installed with in the middle part of described through hole, described inner plate body outer wall offers the second perforation of multiple even setting, the second acoustical cotton layer is filled with in described inner plate body, described second acoustical cotton layer is coated with one second waterproofing protection film, described second waterproofing protection film is coated with one second wire netting, described inner plate body is fixedly connected with described outer plate body by many group fixed mounts.
Further, described outer plate body, described inner plate body, described first wire netting and described second wire netting are equipped with a zinc coat.
Particularly, described fixed mount is three groups, often organizes described fixed mount and is two, and be symmetrical arranged centered by described inner plate body.
Particularly, the aperture of described first perforation is 2.5 ± 0.1mm, and the total area of the first perforation and the area ratio of through-hole wall are 23%.
Particularly, described biperforate aperture is 2.5 ± 0.1mm, and the area ratio of biperforate total area and inner plate body outside surface is 23%.
The sound suppressor that the utility model provides, on the first acoustical cotton layer and the second acoustical cotton layer, bag is provided with the first waterproofing protection film and the second waterproofing protection film respectively, first waterproofing protection film and the second waterproofing protection film play the effect of protection first acoustical cotton layer and the second acoustical cotton layer respectively, avoid the first acoustical cotton layer and the second acoustical cotton layer to suck malaria and are out of shape thus reduce the phenomenon of sound-absorbing effect; The first wire netting and the second wire netting is coated with respectively at the first waterproofing protection film and the second waterproofing protection film surrounding; first wire netting and the second wire netting play the effect of support first acoustical cotton layer and the second acoustical cotton layer respectively; enhance the stability of the first acoustical cotton layer and the second acoustical cotton layer; further avoid the phenomenon of the first acoustical cotton layer and the distortion of the second acoustical cotton layer, add the first acoustical cotton layer and the second acoustical cotton layer sound-absorbing effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical solution of the utility model, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the vertical view of the sound suppressor that the utility model provides.
Fig. 2 is the cut-open view along A-A direction in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
As depicted in figs. 1 and 2, a kind of sound suppressor that the utility model embodiment provides, comprise a cylindrical outer plate body 1, the first acoustical cotton layer 2 is filled with in outer plate body 1, first acoustical cotton layer 2 is coated with one first waterproofing protection film (not shown), first waterproofing protection film is coated with one first wire netting (not shown), outer plate body 1 offers one axially arrange and run through the through hole 11 of outer plate body 1, through hole 11 inwall offers the first perforation 12 of multiple even setting, a cylindrical inner plate body 3 vertically arranged is installed with in the middle part of through hole 11, inner plate body 3 outer wall offers the second perforation 31 of multiple even setting, the second acoustical cotton layer 4 is filled with in inner plate body 3, second acoustical cotton layer 4 is coated with one second waterproofing protection film (not shown), second waterproofing protection film is coated with one second wire netting (not shown), inner plate body 3 is fixedly connected with outer plate body 1 by many group fixed mounts 5.
Further, described outer plate body 1, inner plate body 3, first wire netting and the second wire netting are equipped with a zinc coat (not shown), and zinc coat can play attractive in appearance, antirust effect.
Preferably, fixed mount 5 is three groups, often organize fixed mount 5 and be two, and be symmetrical arranged centered by inner plate body 3, first group of fixed mount 5 two ends is fixedly connected with the inwall upper end of outer plate body 1 with the outer wall upper end of inner plate body 3 respectively, second group of fixed mount 5 two ends is fixedly connected with respectively with in the middle part of the outer wall of inner plate body 3 with in the middle part of the inwall of outer plate body 1, and the 3rd group of fixed mount 5 two ends are fixedly connected with the inwall lower end of outer plate body 1 with the outer wall lower end of inner plate body 3 respectively.
Particularly, the aperture of described first perforation 12 is 2.5 ± 0.1mm, and the first perforation total area of 12 and the area ratio of through hole 11 inwall are 23%.
Particularly, the aperture of described second perforation 31 is 2.5 ± 0.1mm, and the second perforation total area of 31 and the area ratio of inner plate body 3 outside surface are 23%.
The sound suppressor that the utility model provides, on the first acoustical cotton layer 2 and the second acoustical cotton layer 4, bag is provided with the first waterproofing protection film and the second waterproofing protection film respectively, first waterproofing protection film and the second waterproofing protection film play the effect of protection first acoustical cotton layer 2 and the second acoustical cotton layer 4 respectively, avoid the first acoustical cotton layer 2 and the second acoustical cotton layer 4 to suck malaria and are out of shape thus reduce the phenomenon of sound-absorbing effect; The first wire netting and the second wire netting is coated with respectively at the first waterproofing protection film and the second waterproofing protection film surrounding; first wire netting and the second wire netting play the effect of support first acoustical cotton layer 2 and the second acoustical cotton layer 4 respectively; enhance the stability of the first acoustical cotton layer 2 and the second acoustical cotton layer 4; further avoid the phenomenon of the first acoustical cotton layer 2 and the distortion of the second acoustical cotton layer 4, add the first acoustical cotton layer 2 and the second acoustical cotton layer 4 sound-absorbing effect.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (5)
1. a sound suppressor, it is characterized in that, comprise a cylindrical outer plate body, the first acoustical cotton layer is filled with in described outer plate body, described first acoustical cotton layer is coated with one first waterproofing protection film, described first waterproofing protection film is coated with one first wire netting, described outer plate body offers one axially arrange and run through the through hole of described outer plate body, described through-hole wall offers the first perforation of multiple even setting, a cylindrical inner plate body vertically arranged is installed with in the middle part of described through hole, described inner plate body outer wall offers the second perforation of multiple even setting, the second acoustical cotton layer is filled with in described inner plate body, described second acoustical cotton layer is coated with one second waterproofing protection film, described second waterproofing protection film is coated with one second wire netting, described inner plate body is fixedly connected with described outer plate body by many group fixed mounts.
2. sound suppressor according to claim 1, is characterized in that, described outer plate body, described inner plate body, described first wire netting and described second wire netting are equipped with a zinc coat.
3. sound suppressor according to claim 1, is characterized in that, described fixed mount is three groups, often organizes described fixed mount and is two, and be symmetrical arranged centered by described inner plate body.
4. sound suppressor according to claim 1, is characterized in that, the aperture of described first perforation is 2.5 ± 0.1mm, and the described total area of the first perforation and the area ratio of described through-hole wall are 23%.
5. sound suppressor according to claim 1, is characterized in that, described biperforate aperture is 2.5 ± 0.1mm, and the area ratio of described biperforate total area and described inner plate body outside surface is 23%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520611809.8U CN204966044U (en) | 2015-08-14 | 2015-08-14 | Muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520611809.8U CN204966044U (en) | 2015-08-14 | 2015-08-14 | Muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966044U true CN204966044U (en) | 2016-01-13 |
Family
ID=55061094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520611809.8U Expired - Fee Related CN204966044U (en) | 2015-08-14 | 2015-08-14 | Muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204966044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448646A (en) * | 2016-10-21 | 2017-02-22 | 武汉市发源发明推广有限公司 | Adsorption-type wave absorber |
-
2015
- 2015-08-14 CN CN201520611809.8U patent/CN204966044U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448646A (en) * | 2016-10-21 | 2017-02-22 | 武汉市发源发明推广有限公司 | Adsorption-type wave absorber |
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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: 20160113 Termination date: 20200814 |