CN205744056U - Denoising device - Google Patents
Denoising device Download PDFInfo
- Publication number
- CN205744056U CN205744056U CN201620465246.0U CN201620465246U CN205744056U CN 205744056 U CN205744056 U CN 205744056U CN 201620465246 U CN201620465246 U CN 201620465246U CN 205744056 U CN205744056 U CN 205744056U
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- China
- Prior art keywords
- main body
- denoising device
- air
- hush pipe
- process chambers
- 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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- Pipe Accessories (AREA)
- Exhaust Silencers (AREA)
Abstract
This utility model provides a kind of denoising device, and this denoising device reaches the purpose of noise reduction by the form carrying out the noise in air-flow absorbing, intercepting and air-flow liquidates.This denoising device includes connecting portion and main body.Connecting portion connects outlay and main body for fixing, and the connecting portion of annulus column is in the side of this main body, and is connected with this main body split, forms an inlet channel；The main body of annulus column, for air-flow is carried out noise reduction process, including: the sound absorption cavity that the first process chambers, the second process chambers and aerofluxus cavity, inner and outer wall are formed, the first process chambers, the second process chambers and aerofluxus cavity are sequentially communicated；Sound absorption cavity is filled with sound-absorbing material；The first process chambers being positioned at body front part is provided with the first hush pipe and the first dividing plate；It is positioned at the second process chambers in the middle part of main body and is provided with 2 second hush pipes and second partition；The aerofluxus cavity being positioned at back body is provided with positive three-way bar trachea and air vent, and its anode exhaustor connects described air vent.
Description
Technical field
This utility model relates to noise reduction field, particularly relates to a kind of air-flow denoising device.
Background technology
Along with the development of noise reduction technology, noise reducing apparatus also gets more and more, and has been applied to various field, than
Such as aerator, airflow line and household electrical appliance etc..Visible in daily life, noise reduction measure is seen everywhere.
It is known that noise is mainly solid noise and noise of air, in terms of for noise of air, market
Upper mainly resistance noise reduction device, reactive muffling device and composite silencer.But this type of silencing apparatus
In terms of the process to air-flow noise, the air-flow that its air vent is discharged is the most powerful, and is difficult to dismounting and change.
It is thus desirable to a kind of air-flow denoising device solves above-mentioned technical problem.
Utility model content
This utility model embodiment provides a kind of noise reduction good, and simple structure is compact, discharges air-flow and releives
Air-flow denoising device with readily accessible replacing；The most powerful to solve existing denoising device discharge air-flow
And it is difficult to the technical problem that dismounting and change is different.
This utility model embodiment provides a kind of air-flow denoising device, and this denoising device includes:
Connecting portion, described connecting portion connects outlay and main body for fixing, and described connecting portion is annulus column,
It is provided with an air intake；
Main body, for the air-flow of inflow is carried out noise reduction process, described main body is annulus column, described main body
Side be connected with described connecting portion split, form an inlet channel, described main body includes:
Sound absorption cavity, described sound absorption cavity is formed by the edge closing of the inner and outer wall of described main body,
Centre is cavity, is filled with sound-absorbing material in cavity；
First process chambers, is positioned at the front portion of described main body, and connects with described connecting portion, including first every
Plate and the first hush pipe being provided with bloop, described first hush pipe runs through described first dividing plate, and with described
First dividing plate connects fixing；
Second process chambers, is positioned at the middle part of described main body, including second partition be provided with 2 of bloop
Second hush pipe, described second process chambers is connected with described first process chambers by described first hush pipe,
Described second hush pipe runs through described second partition, and is connected fixing with described second partition；
Aerofluxus cavity, is positioned at the rear portion of described main body, including outlet and positive three-way bar trachea, and described positive three
The two side ends exhaustor of logical exhaustor is fixing with described second hush pipe to be connected, formation exhaust passage, described just
The anode exhaustor of three-way bar trachea connects described air vent.
In this utility model, the line of the central point of described air intake and the central point of described air vent is institute
State the centrage of denoising device.
In this utility model, described sound absorption cavity is provided with air layer and material layer, and described material layer is provided with suction
Sound material, described air layer is between material layer and described body outer wall.
In this utility model, described first hush pipe is only positioned at the part of described first process chambers and is provided with and disappears
Sound hole, described bloop is evenly spaced on described first hush pipe.
In this utility model, the edge of described first and second dividing plates is all with the inwall of described main body even
Connect fixing, and be metal partion (metp).
In this utility model, described second hush pipe is only positioned at the part of described second process chambers and is provided with and disappears
Sound hole, described bloop is evenly spaced on described second hush pipe.
In this utility model, described 2 second hush pipes divide relative to described second partition central point
Cloth, and it is connected fixing with described main body inner wall.
In this utility model, the sectional area of the anode discharge duct of described positive three-way bar trachea more than described just
The sectional area of the two side ends exhaust pipe of three-way bar trachea, the sectional area of described two side ends exhaust pipe is big
Body is consistent.
In this utility model, the both sides port of described positive three-way bar trachea and described second hush pipe are by 90 °
Elbow connects fixing.
In this utility model, the connected mode of described connecting portion and outlay for threaded or buckle even
Connect.
Compared to the air-flow denoising device of prior art, air-flow denoising device of the present utility model useful
Effect is: first, owing to connecting portion and main body are that split is connected and has detachability so that this denoising device
Replacing and safeguard more convenient；Second, main body of the present utility model simple and compact for structure so that air-flow
Can quickly be discharged；3rd, this utility model have employed combined type noise elimination structure so that this practicality is new
Type, in certain space, can farthest abate the noise；4th, the novel aerofluxus cavity of this use is adopted
The mode liquidated with gas so that the air-flow of discharge reduces while reducing flowing velocity in liquidating and makes an uproar
Sound；5th, owing to the pipeline section of the anode exhaustor of positive three-way bar trachea is long-pending more than two side ends exhaustor pipe
The sectional area in road, therefore air-flow is when entering anode exhaustor from side exhaustor, owing to area of passage is unexpected
Increase so that the flow velocity of air-flow reduces further, thus causes the air-flow of discharge more to be releived；Solve existing
Some denoising devices are difficult to dismounting and change and the most powerful technical problem of aerofluxus.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment of denoising device of the present utility model；
Fig. 2 is the sectional view of the A-A ' section line along Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technical side in this utility model embodiment
Case is clearly and completely described, it is clear that described embodiment is only that this utility model part is real
Execute example rather than whole embodiments.Based on the embodiment in this utility model, those skilled in the art exist
Do not make the every other embodiment obtained under creative work premise, broadly fall into this utility model protection
Scope.
Refer to the structural representation of the embodiment that Fig. 1 and Fig. 2, Fig. 1 are denoising device of the present utility model,
Fig. 2 is the sectional view of the A-A ' section line along Fig. 1.
In the preferred embodiment that this use is novel, this air-flow denoising device includes the connecting portion 2 of annulus column
With the main body 1 of annulus column, connecting portion 2 connects outlay and main body 1, the present embodiment outlay for fixing
Being set as the aerofluxus exhaust passage of vacuum cleaner, other outlays can also certainly；Main body 1 is for the gas that will flow into
Stream carries out noise reduction process, and the side of main body 1 is connected with connecting portion 2 split, forms an inlet channel.
Connecting portion 2 is provided with an air intake 21, and connecting portion 2 is preferably spiral with the connected mode of outlay and is connected
Or snap connection；Main body 1 includes first process chambers the 10, second process chambers 11, aerofluxus cavity 12
With sound absorption cavity 13.
First process chambers 10 is positioned at the front portion of main body 1, and connects with connecting portion 2, and it includes the first dividing plate
102 and be provided with the first hush pipe 101 of bloop 1011, the first hush pipe 101 runs through described first dividing plate
102, and connect with the second process chambers 11, it is connected fixing with the first dividing plate 102 simultaneously；
Second process chambers 11 is positioned at the middle part of main body 1, and it includes second partition 112 and is provided with bloop
2 second hush pipes 111 of 1111, the second hush pipe 111 runs through second partition 112, and and discharge chamber
Body 12 connects, and is connected fixing with second partition 112 simultaneously；
Aerofluxus cavity 12 is positioned at the rear portion of main body 1, and it includes outlet 121 and positive three-way bar trachea 122,
Two side ends exhaustor and second hush pipe 111 of positive three-way bar trachea 122 connect by 90 ° of elbows are fixing,
Forming exhaust passage, its anode exhaustor connects described air vent 121；Wherein, positive three-way bar trachea 122
The sectional area of anode discharge duct more than the sectional area of two side ends exhaust pipe of positive three-way bar trachea, two
The sectional area of side exhaust pipe is unanimous on the whole.
Sound absorption cavity 13 is closed by the edge of the inner and outer wall of main body 1 and is formed, and centre is cavity, empty
Intracavity is filled with sound-absorbing material；It includes that air layer 131 and material layer 132, air layer 131 are air.
Material layer 132 is filled with sound-absorbing material, and air layer 131 is between material layer 132 and main body 1 outer wall；
Wherein sound-absorbing material is preferably glass cotton.
Wherein, the line of the central point of the central point of air intake 21 and air vent 121 is this preferred embodiment
Centrage；First hush pipe 101 is only positioned at the part of the first process chambers 10 and is provided with bloop 1011, disappears
Sound hole 101 is evenly spaced on the first hush pipe 101；Second hush pipe 111 is only positioned at the second process chambers
The part of 11 is provided with bloop 1111, and bloop 1111 is evenly spaced on the second hush pipe 111；First
The edge of dividing plate 102 and second partition 112 all inwalls with main body 1 are connected fixing, and are metal
Dividing plate；2 second hush pipes 111 in preferred embodiment divide relative to second partition 112 central point
Cloth, and it is connected fixing with main body 1 inwall.
The operation principle of this preferred embodiment is as follows:
First, the aerofluxus exhaust passage of main body 1 and vacuum cleaner is connected solid by connecting portion 2 by this denoising device
Fixed；Then, when vacuum cleaner is started working, the most noises in vacuum cleaner can enter row along with air-flow
Gas exhaust passage, the air intake 21 that then noise passes through connecting portion 2 along with air-flow enters at first in main body 1
Reason cavity 10, in the first process chambers 10, partial noise is blocked by the first dividing plate 102 or reflects back,
Partial noise enters the second process chambers 11 along with the first hush pipe 101, wherein enters the first noise reduction at noise
After pipe 101 contacts with bloop 1011, partial noise can weakened even eliminate.
Then, noise enters the second process chambers 11, the second process chambers 11 along with the first hush pipe 101
In, partial noise is blocked by second partition 112 or reflects back, and partial noise is along with the second hush pipe 111
Enter aerofluxus cavity 12, wherein enter after the second hush pipe 111 contacts with bloop 1111 at noise, portion
Noise is divided weakened even to eliminate, on the other hand, owing to noise neglects big neglecting with the flow area of air-flow process
Little noise is launched toward the direction of sound source in sudden change go back, thus play the purpose of noise reduction.
Finally, noise flows into the positive three-way bar in aerofluxus cavity 12 with air-flow by 2 second hush pipes 111
The two side ends discharge duct of trachea 122, liquidates with air-flow after entering two side ends discharge duct due to air-flow
Form crosses and discharges air vent 121 from anode discharge duct；Wherein, make due to the form of liquidating of air-flow
The air-flow flow velocity when being caught discharge is greatly reduced, and also makes noise significantly weaken simultaneously.
It addition, noise enters main body 1 to during being discharged air vent 121 with air-flow with air-flow, when making an uproar
When sound travels to main body 1 inwall and passes, partial noise can be by the air layer 131 in sound absorption cavity 13 and material
The bed of material 132 absorbs.
This completes the work process of this preferred embodiment.
Having the beneficial effect that of this preferred embodiment:
First, owing to connecting portion 2 and main body 1 are connected for split, there is detachability so that be originally preferable to carry out
The replacing of example and safeguard more convenient；Second, the main body 1 of this preferred embodiment simple and compact for structure, make
Obtain air-flow can quickly be discharged；3rd, this preferred embodiment have employed combined type noise elimination structure so that
This preferred embodiment, in certain space, can farthest abate the noise；4th, this preferred embodiment
Aerofluxus cavity 12 use the mode that gas liquidates so that the air-flow of discharge reduces flowing velocity in liquidating
While weaken noise；5th, owing to the pipeline section of the anode exhaustor of positive three-way bar trachea 122 amasss
More than the sectional area of two side ends exhaust pipe, therefore air-flow is when entering anode exhaustor from side exhaustor,
Owing to area of passage increases suddenly so that the flow velocity of air-flow reduces further, thus cause the air-flow of discharge relatively
For releiving；6th, owing to the sound absorption cavity 13 in this preferred embodiment uses air layer 131 and material layer
The structure of 132 so that the acoustically effective of sound absorption cavity 13 is more preferable, and advantage of lower cost.
In sum, although this utility model is disclosed above with preferred embodiment, but above preferred embodiment
And be not used to limit this utility model, those of ordinary skill in the art, without departing from essence of the present utility model
In god and scope, all can make various change and retouching, protection domain the most of the present utility model is with claim
Define in the range of standard.
Claims (10)
1. a denoising device, for the noise reduction process of air-flow noise, it is characterised in that this denoising device
Including:
Connecting portion, described connecting portion connects outlay and main body for fixing, and described connecting portion is annulus column,
And it is provided with an air intake；
Described main body, for the air-flow noise of inflow is carried out noise reduction process, described main body is annulus column,
The side of described main body is connected with described connecting portion split, forms an inlet channel, and described main body includes:
Sound absorption cavity, described sound absorption cavity is formed by the edge closing of the inner and outer wall of described main body,
Centre is cavity, is filled with sound-absorbing material in cavity；
First process chambers, is positioned at the front portion of described main body, and connects with described connecting portion, including first every
Plate and the first hush pipe being provided with bloop, described first hush pipe runs through described first dividing plate, and with described
First dividing plate connects fixing；
Second process chambers, is positioned at the middle part of described main body, including second partition be provided with 2 of bloop
Second hush pipe, described second process chambers is connected with described first process chambers by described first hush pipe,
Described second hush pipe runs through described second partition, and is connected fixing with described second partition；
Aerofluxus cavity, is positioned at the rear portion of described main body, including outlet and positive three-way bar trachea, and described positive three
The two side ends exhaustor of logical exhaustor is fixing with described second hush pipe to be connected, formation exhaust passage, described just
The anode exhaustor of three-way bar trachea connects described air vent.
Denoising device the most according to claim 1, it is characterised in that the central point of described air intake and
The line of the central point of described air vent is the centrage of described denoising device.
Denoising device the most according to claim 1, it is characterised in that described sound absorption cavity is provided with air
Layer and material layer, described material layer is provided with sound-absorbing material, and described air layer is positioned at outside material layer and described main body
Between wall.
Denoising device the most according to claim 1, it is characterised in that described first hush pipe is only positioned at
The part of described first process chambers is provided with bloop, and described bloop is evenly spaced in described first hush pipe
On.
Denoising device the most according to claim 1, it is characterised in that described first and second dividing plates
Edge all inwalls with described main body are connected fixing, and are metal partion (metp).
Denoising device the most according to claim 1, it is characterised in that described second hush pipe is only positioned at
The part of described second process chambers is provided with bloop, and described bloop is evenly spaced in described second hush pipe
On.
Denoising device the most according to claim 1, it is characterised in that described 2 second hush pipe phases
Described second partition central point is distributed, and is connected with described main body inner wall fixing.
Denoising device the most according to claim 1, it is characterised in that described positive three-way bar trachea is just
The sectional area of end discharge duct is more than the sectional area of the two side ends exhaust pipe of described positive three-way bar trachea, institute
The sectional area stating two side ends exhaust pipe is unanimous on the whole.
Denoising device the most according to claim 1, it is characterised in that the two of described positive three-way bar trachea
Side ports is connected fixing with described second hush pipe by 90 ° of elbows.
Denoising device the most according to claim 1, it is characterised in that described connecting portion and outlay
Connected mode be threaded or snap connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465246.0U CN205744056U (en) | 2016-05-19 | 2016-05-19 | Denoising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465246.0U CN205744056U (en) | 2016-05-19 | 2016-05-19 | Denoising device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744056U true CN205744056U (en) | 2016-11-30 |
Family
ID=57361528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620465246.0U Expired - Fee Related CN205744056U (en) | 2016-05-19 | 2016-05-19 | Denoising device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205744056U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869303A (en) * | 2018-08-02 | 2018-11-23 | 珠海格力电器股份有限公司 | Reverse-phase opposite-impact noise reduction device and screw compressor |
| CN108979792A (en) * | 2018-08-24 | 2018-12-11 | 浙江亚特电器有限公司 | A kind of opposite-flushing type muffler |
| CN109106275A (en) * | 2017-06-26 | 2019-01-01 | 美的集团股份有限公司 | Motor cover and dust catcher |
| CN117514419A (en) * | 2024-01-04 | 2024-02-06 | 南昌大学 | Control method and system for engine exhaust noise |
-
2016
- 2016-05-19 CN CN201620465246.0U patent/CN205744056U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109106275A (en) * | 2017-06-26 | 2019-01-01 | 美的集团股份有限公司 | Motor cover and dust catcher |
| CN108869303A (en) * | 2018-08-02 | 2018-11-23 | 珠海格力电器股份有限公司 | Reverse-phase opposite-impact noise reduction device and screw compressor |
| CN108979792A (en) * | 2018-08-24 | 2018-12-11 | 浙江亚特电器有限公司 | A kind of opposite-flushing type muffler |
| CN108979792B (en) * | 2018-08-24 | 2023-09-05 | 浙江亚特电器股份有限公司 | Opposite-impact silencer |
| CN117514419A (en) * | 2024-01-04 | 2024-02-06 | 南昌大学 | Control method and system for engine exhaust noise |
| CN117514419B (en) * | 2024-01-04 | 2024-03-22 | 南昌大学 | Control method and system for engine exhaust noise |
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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: 20161130 Termination date: 20180519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |