CN207864025U - A kind of silencer - Google Patents
A kind of silencer Download PDFInfo
- Publication number
- CN207864025U CN207864025U CN201721916279.3U CN201721916279U CN207864025U CN 207864025 U CN207864025 U CN 207864025U CN 201721916279 U CN201721916279 U CN 201721916279U CN 207864025 U CN207864025 U CN 207864025U
- Authority
- CN
- China
- Prior art keywords
- partition
- silencer
- protecgulum
- snorkel
- expansion cavity
- 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
Links
- 230000003584 silencer Effects 0.000 title claims abstract description 35
- 238000005192 partition Methods 0.000 claims abstract description 41
- 239000011358 absorbing material Substances 0.000 claims abstract description 9
- 238000009423 ventilation Methods 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008030 elimination Effects 0.000 abstract description 5
- 238000003379 elimination reaction Methods 0.000 abstract description 5
- 238000005457 optimization Methods 0.000 description 2
- 230000009102 absorption Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of silencers, including protecgulum, rear cover and the first partition being arranged between protecgulum and rear cover being arranged on the inside of cylinder, silencer are connect with exhaust pipe by protecgulum snorkel, and silencer is stretched into protecgulum snorkel one end；Silencer is divided into the preceding expansion cavity towards protecgulum side and the rear expansion cavity towards rear cover side by first partition, first partition is equipped at least two along the equally distributed through-hole of first partition circumferencial direction, through-hole is equipped with the first partition snorkel of connection preceding expansion cavity and rear expansion cavity, after cover equipped with the rear cover snorkel after connection outside expansion cavity and silencer.The utility model coordinates aperture and sound-absorbing material using multistage expansion cavity, can effectively weaken the noise of a variety of different frequencies, reach better noise elimination effect by adjusting the path of air-flow.
Description
Technical field
The utility model belongs to silencer technical field, and in particular to a kind of silencer.
Background technology
Silencer is to allow air-flow to pass through, but can prevent or reduce a kind of device of sound transmission, is to eliminate air to move
The important measures of power noise.Silencer can stop the propagation of sound wave, and air-flow is allowed to pass through, and be the effective work for controlling noise
Tool.
The silencer of traditional motor vehicles is mostly the noise for considering to eliminate particular frequency range, can not will be a wide range of
The noise of multi-frequency is eliminated well, narrow scope of application.
Utility model content
For the deficiency in the presence of the prior art, the utility model, which provides one kind, can effectively weaken a variety of different frequencies
The silencer of the noise of rate.
A kind of silencer, including the protecgulum, rear cover and the setting that are arranged on the inside of cylinder are between the protecgulum and rear cover
First partition, the silencer connect with exhaust pipe by protecgulum snorkel, and described disappear is stretched into protecgulum snorkel one end
Sound device；Silencer is divided into the preceding expansion cavity towards protecgulum side and the rear expansion towards rear cover side by the first partition
Chamber, the first partition are equipped at least two along the equally distributed through-hole of first partition circumferencial direction, and the through-hole is equipped with
It is connected to the first partition snorkel of preceding expansion cavity and rear expansion cavity, is covered after described equipped with outside expansion cavity after connection and silencer
Rear cover snorkel.
Further, the end that the protecgulum snorkel stretches into silencer is blocked by blanking cover, in protecgulum snorkel side
Wall is along the circumferential direction uniformly provided with multiple ventilation holes close to the position of blanking cover.
Further, the diameter of the ventilation hole is between 1mm~2mm.
Further, it is additionally provided with second partition between partition board and the protecgulum snorkel, is set in the middle part of the second partition
There is a second partition snorkel across the second partition, the second partition is towards the side of protecgulum snorkel and the noise elimination
Sound-absorbing material is equipped between device inner wall.
Further, glass fibre or sponge plastics can be used in the sound-absorbing material.
Compared with the prior art, the utility model by adjusting air-flow path, use multistage expansion cavity cooperation aperture with
And sound-absorbing material, it can effectively weaken the noise of a variety of different frequencies, reach better noise elimination effect.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Wherein, 1 cylinder, 2 protecgulums, 3 rear covers, 4 first partitions, 5 protecgulum snorkels, expansion cavity before 6, expansion cavity after 7,8
One partition board snorkel, 9 rear cover snorkels, 10 blanking covers, 11 ventilation holes, 12 second partitions, 13 second partition snorkels, 14 sound absorptions
Material.
Specific implementation mode
In order to which the technical means, creative features, achievable purpose and effectiveness for making utility model realize are easy to understand, below
In conjunction with being specifically illustrating, the utility model is expanded on further.
A kind of silencer, as shown in Figure 1, including the protecgulum 2 in 1 inside of cylinder, rear cover 3 is arranged and is arranged before described
First partition 4 between lid 2 and rear cover 3, the silencer are connect with exhaust pipe by protecgulum snorkel 5, the protecgulum ventilation
The silencer is stretched into 5 one end of pipe；Silencer is divided into preceding expansion cavity 6 and court towards 2 side of protecgulum by the first partition 4
To the rear expansion cavity 7 of 3 side of rear cover, the first partition 4 is uniformly distributed equipped at least two along 4 circumferencial direction of first partition
Through-hole, the through-hole is equipped with the first partition snorkel 8 for being connected to preceding expansion cavity 6 and rear expansion cavity 7, set on the rear cover 3
There is the rear cover snorkel 9 outside expansion cavity 7 and silencer after connection.
The reflection and interference of acoustic energy can be preferably caused by multistage expansion cavity and multiple snorkels in this way, reduces and eliminates the noise
Device achievees the effect that noise reduction to the acoustic energy of external radiation.
As a further optimization of the scheme , the end that the protecgulum snorkel 5 stretches into silencer is blocked by blanking cover 10, in institute
It states 5 side wall of protecgulum snorkel and is along the circumferential direction uniformly provided with multiple ventilation holes 11 close to the position of blanking cover 10.The ventilation is small
The diameter in hole 11 is between 1mm~2mm.
Noise elimination effect can be further strengthened by the method for micropore jet in this way.
As a further optimization of the scheme , being additionally provided with second partition between first partition 4 and the protecgulum snorkel 5
12,12 middle part of the second partition is equipped with the second partition snorkel 13 across the second partition 12, the second partition 12
Towards between the side of protecgulum snorkel 5 and the silencer internal wall be equipped with sound-absorbing material 14.Particularly, the sound-absorbing material
14 can be used glass fibre or sponge plastics.
This programme coordinates micropore jet and multistage expansion cavity by adjusting the path of air-flow using sound-absorbing material, can
The noise for effectively weakening a variety of different frequencies reaches better noise elimination effect.
Above description is merely a prefered embodiment of the utility model, on the scope of protection of the utility model is not limited in
Embodiment is stated, every technical solution for belonging to the utility model principle belongs to the scope of protection of the utility model.For this
For the technical staff in field, several improvement carried out under the premise of not departing from the principles of the present invention, these improvement
It should be regarded as the scope of protection of the utility model.
Claims (5)
1. a kind of silencer, it is characterised in that：
It is described including the protecgulum, rear cover and the first partition being arranged between the protecgulum and rear cover being arranged on the inside of cylinder
Silencer is connect with exhaust pipe by protecgulum snorkel, and the silencer is stretched into protecgulum snorkel one end；Described first every
Silencer is divided into the preceding expansion cavity towards protecgulum side and the rear expansion cavity towards rear cover side by plate, in the first partition
Equipped at least two along the equally distributed through-hole of first partition circumferencial direction, the through-hole, which is equipped with, is connected to preceding expansion cavity and rear expansion
The first partition snorkel for opening chamber is covered after described equipped with expansion cavity after connection and the rear cover snorkel outside silencer.
2. a kind of silencer according to claim 1, it is characterised in that：
The end that the protecgulum snorkel stretches into silencer is blocked by blanking cover, in the protecgulum snorkel side wall close to the position of blanking cover
It sets and is along the circumferential direction uniformly provided with multiple ventilation holes.
3. a kind of silencer according to claim 2, it is characterised in that：
The diameter of the ventilation hole is between 1mm~2mm.
4. according to a kind of silencer of claims 1 to 3 any one of them, it is characterised in that：
It is additionally provided with second partition between first partition and the protecgulum snorkel, is equipped with across described in the middle part of the second partition
The second partition snorkel of second partition, the second partition is towards between the side of protecgulum snorkel and the silencer internal wall
Equipped with sound-absorbing material.
5. a kind of silencer according to claim 4, it is characterised in that：
The sound-absorbing material is glass fibre or sponge plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721916279.3U CN207864025U (en) | 2017-12-31 | 2017-12-31 | A kind of silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721916279.3U CN207864025U (en) | 2017-12-31 | 2017-12-31 | A kind of silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864025U true CN207864025U (en) | 2018-09-14 |
Family
ID=63464077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721916279.3U Expired - Fee Related CN207864025U (en) | 2017-12-31 | 2017-12-31 | A kind of silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207864025U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030061A (en) * | 2019-05-15 | 2019-07-19 | 湖南农业大学 | A kind of racing car exhaust muffling device |
| CN119084363A (en) * | 2024-11-06 | 2024-12-06 | 江苏天格能环保机械设备制造有限公司 | A fan muffler with compressed air purge function |
-
2017
- 2017-12-31 CN CN201721916279.3U patent/CN207864025U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030061A (en) * | 2019-05-15 | 2019-07-19 | 湖南农业大学 | A kind of racing car exhaust muffling device |
| CN119084363A (en) * | 2024-11-06 | 2024-12-06 | 江苏天格能环保机械设备制造有限公司 | A fan muffler with compressed air purge function |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20191231 |