CN208871691U - A kind of noise reduction air duct - Google Patents
A kind of noise reduction air duct Download PDFInfo
- Publication number
- CN208871691U CN208871691U CN201821300808.1U CN201821300808U CN208871691U CN 208871691 U CN208871691 U CN 208871691U CN 201821300808 U CN201821300808 U CN 201821300808U CN 208871691 U CN208871691 U CN 208871691U
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- Prior art keywords
- air
- shell
- air duct
- noise reduction
- outlet
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- Expired - Fee Related
Links
- 230000009467 reduction Effects 0.000 title claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims abstract description 15
- 230000008676 import Effects 0.000 claims abstract description 10
- 238000005452 bending Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 6
- 230000004308 accommodation Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 239000000779 smoke Substances 0.000 abstract description 12
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model is a kind of noise reduction air duct, belong to field of ventilation equipment, larger noise is led to the problem of the air duct of the prior art, it is as follows using technical solution: a kind of noise reduction air duct, including surrounding the air channel shell of inlet and outlet and the ducting assembly in air channel shell, the inner wall of the air channel shell at least side is equipped with mesh plate, the mesh plate is arranged from import to outlet-inclined impeller vane, acoustical cotton is equipped between the mesh plate and air channel shell, the ducting assembly is used to the gas of entrance being pumped to exit.When oil smoke or exhaust gas enter from entrance, air-flow is shunted and is buffered by mesh plate and acoustical cotton, flow through the flow velocity decline of the air-flow of air channel shell, but the air velocity of air channel shell inner space does not have an impact, therefore noise is reduced in the case where the flow velocity of suction airstream does not reduce, not only met requirement but also the big bring sense of discomfort of noise can be effectively relieved.In addition, the mesh plate being in tilted layout also has certain guide functions.
Description
Technical field
The utility model belongs to field of ventilation equipment, in particular to a kind of noise reduction air duct.
Background technique
The needs such as smoke exhaust ventilator used in daily life, exhaust blower are connected with air duct, and when work, oil smoke or exhaust gas pass through
Air duct discharges, and since air duct generally has bending place, and the air velocity in air duct is fast, air-flow by air duct bending place
It generates air duct to vibrate and issue biggish noise, people, which live or worked in the environment of larger noise, can then generate irritated feelings
Thread, it is unfavorable to body and mind, therefore the sound that generates when it is desirable to reduce or eliminate air duct work, but do not change air channel structure and only
It is that cannot reduce the noise generated when the work of existing air duct by way of reducing air velocity.
Utility model content
Larger noise is led to the problem of the air duct of the prior art, the utility model provides a kind of noise reduction air duct, effectively
Air-flow is reduced by the noise that generates when air duct.
The utility model is as follows using technical solution: a kind of noise reduction air duct, the air channel shell including surrounding inlet and outlet
And the ducting assembly in air channel shell, the inner wall of the air channel shell at least side are equipped with mesh plate, the mesh
Plate is arranged from import to outlet-inclined impeller vane, acoustical cotton is equipped between the mesh plate and air channel shell, the ducting assembly is used for will
The gas of entrance is pumped to exit.
When oil smoke or exhaust gas enter from entrance, air-flow is shunted and is buffered by mesh plate and acoustical cotton, flows through air channel shell
Air-flow flow velocity decline, but the air velocity of air channel shell inner space does not have an impact, therefore in the flow velocity of suction airstream
Noise is reduced in the case where not reducing, and has not only met requirement but also the big bring sense of discomfort of noise can be effectively relieved.In addition,
The mesh plate of inclination arrangement also has certain guide functions.
Further, the ducting assembly includes the shell with the scroll casing shape of mounting hole, is connected to installation by bracket
Motor at hole, and it is connected to and around with the drive shaft of motor the wind wheel of mounting hole arrangement, the motor and wind wheel are being installed
Air inlet is formed at hole, the air inlet is corresponding with the position of mesh plate.The position for being located proximate to air inlet of mesh plate is set
The percussion that can reduce to large extent air-flow to air channel shell is set, the noise that air channel shell generates is reduced.
Further, one is additionally provided in the shell with meshed bending plate, the mesh and wind wheel are positioned opposite, institute
It states and is equipped with acoustical cotton between bending plate and shell.This setting alleviates the impact after air-flow enters in shell to shell, effectively
The vibration of shell is reduced, the noise that shell generates is reduced.
Further, the two sides of the bending plate are equipped with multiple arranged for interval and bent connection sheet, the shell
Be equipped with multiple positions riveted holes corresponding with connection sheet, the connection sheet after the riveted holes under external force
Bending, so that bending plate is fixedly connected with shell, to prevent bending plate from shaking.
Further, the bending plate is equipped with limit flanging, and the limit flanging is connected by locating piece with shell, limits
The junction of position flanging and shell forms closed end, for preventing acoustical cotton from deviating from.
Further, the air channel shell includes the side plate and top plate for surrounding the accommodation space for accommodating ducting assembly,
The bottom opening that the side plate surrounds is import, and connector is provided on top plate as outlet.Import can be with smoke exhaust ventilator, exhaust blower
Exhaust outlet be connected, outlet can be used for fixing ducting assembly, therefore the size of import is greater than outlet and is dimensioned such that obtain oil pumping
Oil smoke or exhaust gas in smoke machine, exhaust blower enter in air channel shell as early as possible, and suction effect is preferable.
Further, the shell further includes an air outlet, and the air outlet is connect with the interconnecting piece of a closing, described
The junction of interconnecting piece and air outlet is fixed on top plate.This structure makes air outlet protrude from top plate arrangement, so that connection
There is enough operating spaces when portion is connect with other component.
Further, the interconnecting piece has the air outlet connecting pin and circular free end being smoothly connected, the outlet air
Mouth connecting pin is rectangle, and the free end is circle.The air outlet connecting pin passes through connector with shell, limit flanging respectively
Connection, since interconnecting piece can also be connect with hose or channel, and the section in hose or channel is generally circular, then free end is arranged
At better adaptability when circle.
Further, the free end is connected with a blend stop, and the blend stop is for connecting and limiting check (non-return) valve.Check (non-return) valve is general
For circle, can be seamlessly connected with free end, to prevent gas leakage.
When the utility model has the advantages that oil smoke or exhaust gas enter from entrance, air-flow is by mesh plate and sound-absorbing
Cotton shunts and buffering, flows through the flow velocity decline of the air-flow of air channel shell, but the air velocity of air channel shell inner space is not
It influences, therefore reduces noise in the case where the flow velocity of suction airstream does not reduce, not only met requirement but also can be effectively relieved
Noise big bring sense of discomfort.In addition, the mesh plate being in tilted layout also has certain guide functions.
Detailed description of the invention
Fig. 1 is the overall structure diagram in noise reduction air duct；
Fig. 2 is the assembling structure schematic diagram in noise reduction air duct；
Fig. 3 is noise reduction air passage portion cross-sectional view；
Fig. 4 is that noise reduction air duct is used with reference to figure；
Fig. 5 is the assembling structure schematic diagram of ducting assembly；
In figure:
1- air channel shell；
11- side plate；12- top plate；121- connector；
2- ducting assembly；
21- shell；211- mesh；212- bending plate；2121- limits flanging；213- connection sheet；214- riveted holes；215-
Interconnecting piece；216- grades of items；22- bracket；23- motor；24- wind wheel；
3- mesh plate；
A- acoustical cotton；B- air inlet.
Specific embodiment
Below with reference to the attached drawing of the utility model, the technical solution of the utility model embodiment is explained and illustrated,
But following embodiments are only the preferred embodiment of the utility model, and not all.Based on the implementation example in the implementation mode, this field
Technical staff's obtained other embodiments without making creative work, belong to the protection model of the utility model
It encloses.
The noise reduction air duct of the present embodiment, as shown in Figures 1 to 5, air channel shell 1 and position including surrounding inlet and outlet
In the ducting assembly 2 in air channel shell 1, the inner wall of 1 side of air channel shell is equipped with mesh plate 3, the mesh plate 3 from into
It mouthful is arranged to outlet-inclined impeller vane, is equipped with acoustical cotton A between the mesh plate 3 and air channel shell 1, the ducting assembly 2 is for will be into
Gas at mouthful is pumped to exit.
When oil smoke or exhaust gas enter from entrance, air-flow is shunted and is buffered by mesh plate 3 and acoustical cotton A, is flowed through outside air duct
The flow velocity of the air-flow of shell 1 declines, but the air velocity of 1 inner space of air channel shell does not have an impact, therefore in suction airstream
Flow velocity reduces noise in the case where not reducing, not only met requirement but also the big bring sense of discomfort of noise can be effectively relieved.
In addition, the mesh plate 3 being in tilted layout also has certain guide functions.
The ducting assembly 2 includes the shell 21 with the scroll casing shape of mounting hole, is connected at mounting hole by bracket 22
Motor 23, and be connected to and around with the drive shaft of motor 23 wind wheel 24 of mounting hole arrangement, the motor 23 and wind wheel 24
Air inlet B is formed at mounting hole, the air inlet B is corresponding with the position of mesh plate 3.Mesh plate 3 is located proximate to enter the wind
The position setting of mouth B can reduce air-flow to the percussion of air channel shell 1 to large extent, reduce what air channel shell 1 generated
Noise.
The bending plate 212 with mesh 211 is additionally provided in the shell 21, the mesh 211 and wind wheel 24 are positioned opposite,
Acoustical cotton A is equipped between the bending plate 212 and shell 21.This setting alleviates after air-flow enters in shell 21 to shell 21
Impact, be effectively reduced the vibration of shell 21, reduce the noise that shell 21 generates.
The two sides of the bending plate 212 are equipped with multiple arranged for interval and bent connection sheet 213, on the shell 21
Equipped with being equipped with multiple positions riveted holes 214 corresponding with connection sheet 213, the connection sheet 213 after the riveted holes 214
It is bent under external force, so that bending plate 212 is fixedly connected with shell 21, to prevent bending plate 212 from shaking.
The bending plate 212 is equipped with limit flanging 2121, and the limit flanging 2121 passes through locating piece and 21 phase of shell
Even, the junction of limit flanging 2121 and shell 21 forms closed end, for preventing acoustical cotton A from deviating from.
The air channel shell 1 includes the side plate 11 and top plate 12 for surrounding the accommodation space for accommodating ducting assembly 2, described
The bottom opening that side plate 11 surrounds is import, and connector 121 is provided on top plate 12 as outlet.Import can be with smoke exhaust ventilator, row
The exhaust outlet of blower is connected, and outlet can be used for fixing ducting assembly 2, therefore the size of import is greater than being dimensioned such that for outlet
Oil smoke or exhaust gas in smoke exhaust ventilator, exhaust blower enter as early as possible in air channel shell 1, and suction effect is preferable.
The shell 21 further includes an air outlet, and the air outlet is connect with the interconnecting piece 215 of a closing, the connection
Portion 215 and the junction of air outlet are fixed on top plate 12.This structure makes air outlet protrude from the arrangement of top plate 12, so that even
There is enough operating spaces when socket part 215 is connect with other component.
The interconnecting piece 215 has the air outlet connecting pin and circular free end being smoothly connected, the air outlet connection
End is rectangle, and the free end is circle.The air outlet connecting pin passes through connector with shell 21, limit flanging 2121 respectively
Connection, since interconnecting piece 215 can also be connect with hose or channel, and the section in hose or channel is generally circular, then free end
It is arranged to better adaptability when circle.
The free end is connected with a blend stop 216, and the blend stop 216 is for connecting and limiting check (non-return) valve.Check (non-return) valve is generally
Circle can be seamlessly connected, to prevent gas leakage with free end.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, one skilled in the art should be understood that the utility model includes but is not limited to attached drawing and specific embodiment above
Described in content.The modification of any function and structure principle without departing from the utility model is intended to be included in the model of claim
In enclosing.
Claims (9)
1. a kind of noise reduction air duct, which is characterized in that including surrounding the air channel shell of inlet and outlet and being located in air channel shell
Ducting assembly, the inner wall of the air channel shell at least side is equipped with mesh plate, and the mesh plate is from import to outlet-inclined impeller vane
Arrangement is equipped with acoustical cotton between the mesh plate and air channel shell, the ducting assembly is for the gas of entrance to be pumped to
Exit.
2. noise reduction air duct according to claim 1, which is characterized in that the ducting assembly includes the spiral case with mounting hole
The shell of shape is connected to the motor at mounting hole by bracket, and is connected to and around mounting hole arrangement with the drive shaft of motor
Wind wheel, the motor and wind wheel form air inlet at mounting hole, and the air inlet is corresponding with the position of mesh plate.
3. noise reduction air duct according to claim 2, which is characterized in that be additionally provided with one in the shell with meshed bending
Plate, the mesh and wind wheel are positioned opposite, and acoustical cotton is equipped between the bending plate and shell.
4. noise reduction air duct according to claim 3, which is characterized in that the two sides of the bending plate are equipped with multiple interval cloth
It sets and bent connection sheet, the shell is equipped with multiple positions riveted holes corresponding with connection sheet, the connection sheet
It is bent under external force after the riveted holes, so that bending plate is fixedly connected with shell.
5. noise reduction air duct according to claim 3, which is characterized in that the bending plate is equipped with limit flanging, the limit
Position flanging is connected by locating piece with shell, and the junction for limiting flanging and shell forms closed end, for preventing acoustical cotton de-
Out.
6. noise reduction air duct according to claim 2, which is characterized in that the air channel shell includes accommodating air duct for surrounding
The side plate and top plate of the accommodation space of component, the bottom opening that the side plate surrounds are import, are provided with connector conduct on top plate
Outlet.
7. noise reduction air duct according to claim 6, which is characterized in that the shell further includes an air outlet, the outlet air
Mouth is connect with the interconnecting piece of a closing, and the junction of the interconnecting piece and air outlet is fixed on top plate.
8. noise reduction air duct according to claim 7, which is characterized in that there is the interconnecting piece air outlet being smoothly connected to connect
End and circular free end are connect, the air outlet connecting pin is rectangle, so free end is circle.
9. noise reduction air duct according to claim 8, which is characterized in that the free end is connected with a blend stop, and the blend stop is used
In connecting and limit check (non-return) valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821300808.1U CN208871691U (en) | 2018-08-13 | 2018-08-13 | A kind of noise reduction air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821300808.1U CN208871691U (en) | 2018-08-13 | 2018-08-13 | A kind of noise reduction air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208871691U true CN208871691U (en) | 2019-05-17 |
Family
ID=66464527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821300808.1U Expired - Fee Related CN208871691U (en) | 2018-08-13 | 2018-08-13 | A kind of noise reduction air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208871691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513741A (en) * | 2019-08-29 | 2019-11-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood |
-
2018
- 2018-08-13 CN CN201821300808.1U patent/CN208871691U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513741A (en) * | 2019-08-29 | 2019-11-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220715 Address after: 528429 first floor, plant 2, No. 6, Kui Middle Road, Huangpu town, Zhongshan City, Guangdong Province Patentee after: Guangdong Hesheng Integrated Electric Co.,Ltd. Address before: 312000 No. 217, Dongyuan village, Changle Town, Shengzhou City, Shaoxing City, Zhejiang Province Patentee before: Liu Zheming |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 |