CN206419282U - Flanging dock acoustic hood - Google Patents
Flanging dock acoustic hood Download PDFInfo
- Publication number
- CN206419282U CN206419282U CN201621397198.2U CN201621397198U CN206419282U CN 206419282 U CN206419282 U CN 206419282U CN 201621397198 U CN201621397198 U CN 201621397198U CN 206419282 U CN206419282 U CN 206419282U
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- CN
- China
- Prior art keywords
- top plate
- bending edges
- acoustic hood
- side plate
- flanging
- 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.)
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Building Environments (AREA)
Abstract
The utility model discloses a kind of flanging dock acoustic hood in noise insulation equipment field.Including top plate and side plate, the side board edge is provided with bending edges, and side plate is connected by bending edges with top plate, and rubber blanket is provided between the bending edges and top plate, the bending edges are connected with top plate by bolt and nut, and sound absorption surface layer is equipped with the inside of the top plate and side plate.The beneficial effects of the utility model are：By setting bending edges on the side plate of acoustic hood, it is connected using bending edges with sound insulation cowl top panel, and rubber blanket interlayer is set between bending edges and top plate, flexible connection is finally realized using bolt and nut, so as to separate the scattering approach of sound, the noise reduction efficacy of acoustic hood is improved.
Description
Technical field
The utility model is related to noise insulation equipment field, more particularly to a kind of flanging dock acoustic hood.
Background technology
Blower fan frequency of use is higher in industrial and mining enterprises, the blower fan type generally used for Roots blower and centrifugal blower,
This two classes blower fan belongs to positive displacement blower fan, is compressed using blower interior relative motion and conveys air, and this noise like is low in belonging to
Frequency noise source.Middle and low frequency noise has stronger scattering power, and the hearing impairment for industrial and mining enterprises site operation personnel is larger.
Existing acoustic hood adds sound insulating material internal layer using sheet material, and cut-off noise source reaches the effect of noise reduction.Using welding between sheet material
Rigid assembling mode, for low-frequency noise, the scattering approach of sound can not be separated by being rigidly connected, therefore, for produce low frequency
The blower acoustic hood of noise need to consider the connected mode of improvement cover body, farthest separate the propagation of sound.
Utility model content
Noise source scattering can not be separated to overcome existing acoustic hood to be rigidly connected, defening effect is not good to wait not enough, this practicality
New technical problem to be solved is：A kind of flexible connection, the good acoustic hood of acoustically effective are provided.
The utility model solves the technical scheme that its technical problem used：Flanging dock acoustic hood, including top plate
And side plate, the side board edge is provided with bending edges, and side plate is connected with top plate by bending edges, set between the bending edges and top plate
There is rubber blanket.
It is further that the bending edges are connected with top plate by bolt and nut.
It is further to be equipped with sound absorption surface layer on the inside of the top plate and side plate.
It is further that the sound absorption surface layer is polyurethane foamed material.
It is further that the sound absorption surface layer is by paste adhesive on top plate and side plate.
The beneficial effects of the utility model are：By setting bending edges on the side plate of acoustic hood, using bending edges with every
Acoustic shell top plate is connected, and sets rubber blanket interlayer between bending edges and top plate, and flexible connect finally is realized using bolt and nut
Connect, so as to separate the scattering approach of sound, improve the noise reduction efficacy of acoustic hood.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Mark is 1- top plates in figure, and 2- side plates, 3- bending edges, 4- rubber blankets, 5- bolt and nuts, 6- sound absorption surface layers, 7- glues
Glue.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, the utility model includes top plate 1 and side plate 2, the edge of side plate 2 is provided with bending edges 3, and side plate 2 leads to
Cross bending edges 3 with top plate 1 to be connected, rubber blanket 4 is provided between the bending edges 3 and top plate 1.Top plate 1 and side plate 2 are general by 3mm
Sheet metal be made, bending edges by 3mm sheet metals according to 90 degree bending rate bend, bend edge lengths≤50mm.Bending is set
Side 3 can increase the contact area of side plate 2 and top plate 1, make stable connection reliable, the rubber blanket 4 between bending edges 3 and top plate 1
Interlayer can play sealed effect, prevent sound from being scattered out from connection gap.
The bending edges 3 are connected with top plate 1 by bolt and nut 5.Bending edges 2 can be controlled by being connected using bolt and nut 5
With the compression dynamics of top plate 1, it is ensured that sealing property, while being also beneficial to acoustic hood integral demounting, it is easy to cover body internal unit to examine
Repair maintenance.
The inner side of the top plate 1 and side plate 2 is equipped with sound absorption surface layer 6.The main function of sound absorption surface layer 6 is to absorb acoustic hood
Interior noise sound wave, alleviates its vibrations produced to acoustic hood.
Further, shown sound absorption surface layer 6 is polyurethane foamed material.Polyurethane foam has Stability Analysis of Structures, not variable
Shape, the features such as will not produce that dust fine dust, calcination smoke amount are few and toxicity is low because of aging, not produce drop, to it is heat-insulated, every
Sound has good effect, and due to its light weight, transport installation difficulty is not high, and whole acoustic hood is improved to a certain extent
Structural stability.
For the ease of installing sound absorption surface layer 6, the sound absorption surface layer 6 is pasted onto on top plate and side plate by viscose glue 7.
The utility model is simple in construction, urgent to be applicable, and the noise reduction efficacy of acoustic hood can be effectively improved, with good practicality
Property and application prospect.
Claims (5)
1. flanging dock acoustic hood, including top plate (1) and side plate (2), it is characterized in that：Side plate (2) edge is provided with bending
Side (3), side plate (2) is connected by bending edges (3) with top plate (1), and rubber blanket is provided between the bending edges (3) and top plate (1)
(4)。
2. flanging dock acoustic hood as claimed in claim 1, it is characterized in that：The bending edges (3) pass through spiral shell with top plate (1)
Bolt nut (5) is connected.
3. flanging dock acoustic hood as claimed in claim 1, it is characterized in that：The top plate (1) and the inner side of side plate (2) are equal
Provided with sound absorption surface layer (6).
4. flanging dock acoustic hood as claimed in claim 3, it is characterized in that：The sound absorption surface layer (6) is polyurethane foam
Material.
5. flanging dock acoustic hood as claimed in claim 4, it is characterized in that：The sound absorption surface layer (6) is viscous by viscose glue (7)
It is attached on top plate (1) and side plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397198.2U CN206419282U (en) | 2016-12-19 | 2016-12-19 | Flanging dock acoustic hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397198.2U CN206419282U (en) | 2016-12-19 | 2016-12-19 | Flanging dock acoustic hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206419282U true CN206419282U (en) | 2017-08-18 |
Family
ID=59576150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621397198.2U Active CN206419282U (en) | 2016-12-19 | 2016-12-19 | Flanging dock acoustic hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206419282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111801502A (en) * | 2018-03-09 | 2020-10-20 | 株式会社不二工机 | Mounting structure of draining pump |
-
2016
- 2016-12-19 CN CN201621397198.2U patent/CN206419282U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111801502A (en) * | 2018-03-09 | 2020-10-20 | 株式会社不二工机 | Mounting structure of draining pump |
| CN111801502B (en) * | 2018-03-09 | 2022-03-11 | 株式会社不二工机 | Mounting structure of draining pump |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |