CN206669992U - A kind of compact high efficient sound insulation return air grid - Google Patents
A kind of compact high efficient sound insulation return air grid Download PDFInfo
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- CN206669992U CN206669992U CN201720281001.7U CN201720281001U CN206669992U CN 206669992 U CN206669992 U CN 206669992U CN 201720281001 U CN201720281001 U CN 201720281001U CN 206669992 U CN206669992 U CN 206669992U
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- sound insulation
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- body frame
- air grid
- handle
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Abstract
A kind of compact high efficient sound insulation return air grid, sound insulation body is provided with body frame, sound insulation body is made up of sound insulation framework and its internal vertical and equidistant placement flanging type blade, and flanging type blade is herringbone structure；Air grid is provided with front of body frame, air grid includes panel, panel and the adpting flange of body frame outer ring are connected by screw, bossing forward is provided with the middle part of panel, air regulating board is provided between the bossing of panel and the adpting flange of body frame, panel is provided centrally with two transverse directions and the handle being arranged symmetrically, and the thread segment of each handle sequentially passes through panel, air regulating board and nut and connected, and the thread segment end of handle is provided with split pin.Sound insulation body of the present utility model can not only be had by oneself characteristic by material and carry out sound insulation and sound-absorbing, sound insulation and sound-absorbing can also be carried out by its specific structure type, ship, naval vessel working environment are adapted to, has good inhibiting effect to Middle and low frequency noise caused by ventilating system.
Description
Technical field
It the utility model is related to a kind of return air grid, more particularly to a kind of compact high efficient used on ship, naval vessel
Sound insulation return air grid.
Background technology
It is the airflow circulating and energy-conservation for realizing air handling system on ship, naval vessel, it is necessary to set back indoors on bulkhead
Air port and air -return duct are connected with air-conditioning box, and return air grid is provided with return air inlet.During air handling system use, air-conditioning
Middle and low frequency noise caused by the machinery such as machine set compressor, blower fan is passed by air-flow along air -return duct, return air grid to indoor radiation
Pass, the use to indoor occupant life, work, and the high-precision instrument in part, equipment produces certain influence.
The content of the invention
The purpose of this utility model will solve above-mentioned technical problem.
What the purpose of this utility model was realized in：A kind of compact high efficient sound insulation return air grid, including body frame,
The adpting flange that body frame outer ring is set is connected by the gasket seal at rear with bulkhead, it is characterised in that：Described body
Sound insulation body is provided with framework, sound insulation body is made up of sound insulation framework and its internal vertical and equidistant placement flanging type blade, rolled over
Side type blade is herringbone structure；Air grid is provided with front of body frame, air grid includes panel, panel and sheet
The adpting flange of body framework outer ring is connected by screw, and bossing forward, the lug boss of panel are provided with the middle part of panel
Divide and air regulating board is provided between the adpting flange of body frame, panel is provided centrally with two transverse directions and the hand being arranged symmetrically
Handle, the thread segment of each handle sequentially pass through panel, air regulating board and nut and connected, and the thread segment end of handle is provided with opening
Pin.
Described sound insulation body is an independent entirety, and the width of sound insulation body is less than the width of body frame.
Described handle threads section is between two flanging type blades.
The utility model is compact-sized, and gross thickness is only 100mm, and its unique sound insulation body can not only be had by oneself by material
Characteristic carries out sound insulation and sound-absorbing, can also carry out sound insulation and sound-absorbing by its specific structure type, adapt to ship, naval vessel work
Make environment, there is good inhibiting effect to Middle and low frequency noise caused by ventilating system, noise reduction efficiency is high, and popularization and application have good
Economic and social benefit.
Brief description of the drawings
Fig. 1 is front view of the present utility model.
Fig. 2 is right view of the present utility model.
Fig. 3 is Fig. 1 A-A profiles.
Fig. 4 is Fig. 2 B partial enlarged drawings.
In figure：1. body frame；2. air grid；3. sound insulation body；4. screw；5. gasket seal；6. bulkhead；201. face
Plate；202. air regulating board；203. handle；204. nut；301. flanging type blades；302. sound insulation frameworks.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, but not as to limitation of the present utility model：
A kind of compact high efficient sound insulation return air grid, including body frame 1, the adpting flange that the outer ring of body frame 1 is set
It is connected by the gasket seal 5 at rear with bulkhead 6, sound insulation body 3 is provided with described body frame 1, sound insulation body 3 is by sound insulation frame
Frame 302 and its internal vertical and equidistant placement flanging type blade 301 form, and flanging type blade 301 is herringbone structure；This
The front of body framework 1 is provided with air grid 2, and air grid 2 includes panel 201, panel 201 and the company of the outer ring of body frame 1
Acting flange is connected by screw 4, and the middle part of panel 201 is provided with bossing forward, the bossing and body of panel 201
Air regulating board 202 is provided between the adpting flange of framework 1, panel 201 is provided centrally with two transverse directions and the hand being arranged symmetrically
Handle 203 controls the keying of air grid 2, and the thread segment of each handle 203 sequentially passes through panel 201, air regulating board 202 and nut
204 connections, the thread segment end of handle 203 is provided with split pin；Described sound insulation body 3 is an independent entirety, sound insulation body 3
Width be less than body frame 1 width；The described thread segment of handle 203 is between two flanging type blades 301.
When it is implemented, 1）, flanging type blade 301 is made up of microwell plate composite foam aluminium sheet；2）, sound insulation framework 302 adopts
With composite foam aluminium sheet；3）, air grid 2 air regulating board 202 can open and close；4）, the utility model be mainly used in ventilating system
Returning air outlet, moreover it is possible to as the indoor cut-off with machinery compartment, and machinery space can be carried out necessarily to the noise of interior radiation
Barrier, decay, so as to play sound insulation, sound deadening.
Operation principle：In normal use, air regulating board 202, indoor or air-conditioning box air are opened to the right by handle 203
Into sound insulation body 3, a part of acoustic energy is reflected back by sound insulation body 3, and a part of acoustic energy penetrates sound insulation body 3 and enters flanging type blade
301, this part acoustic energy enters microwell plate on flanging type blade 301 and forms cavity progress primary energy consumption with foamed aluminium cavity,
Acoustic energy can also carry out multiple reflections consumption again along the surface of flanging type blade 301, and acoustic energy consumption is more, and sound insulation and noise reduction effect is better,
So as to play sound insulation, decrease of noise functions.
Above-described embodiment of the present utility model, it is only to clearly demonstrate the citing that the utility model is done, but is not used to
The scope of protection of the utility model is limited, all equivalent technical schemes fall within category of the present utility model, the utility model
Scope of patent protection should be limited by every claim.
Claims (3)
1. a kind of compact high efficient sound insulation return air grid, including body frame（1）, body frame（1）The connection method that outer ring is set
The blue gasket seal by rear（5）With bulkhead（6）Connection, it is characterised in that：Described body frame（1）Inside it is provided with sound insulation
Body（3）, sound insulation body（3）By sound insulation framework（302）And its internal vertical and equidistant placement flanging type blade（301）Composition, folding
Side type blade（301）It is herringbone structure；Body frame（1）Front be provided with air grid（2）, air grid（2）Bag
Include panel（201）, panel（201）With body frame（1）The adpting flange of outer ring passes through screw（4）Connection, panel（201）In
Portion is provided with bossing forward, panel（201）Bossing and body frame（1）Adpting flange between be provided with tune
Aerofoil（202）, panel（201）Be provided centrally with two transverse directions and the handle being arranged symmetrically（203）, each handle（203）'s
Thread segment sequentially passes through panel（201）, air regulating board（202）With nut（204）Connection, handle（203）Thread segment end set
It is equipped with split pin.
A kind of 2. compact high efficient sound insulation return air grid according to claim 1, it is characterised in that：Described sound insulation body
（3）For an independent entirety, sound insulation body（3）Width be less than body frame（1）Width.
A kind of 3. compact high efficient sound insulation return air grid according to claim 1, it is characterised in that：Described handle
（203）Thread segment is located at two flanging type blades（301）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720281001.7U CN206669992U (en) | 2017-03-22 | 2017-03-22 | A kind of compact high efficient sound insulation return air grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720281001.7U CN206669992U (en) | 2017-03-22 | 2017-03-22 | A kind of compact high efficient sound insulation return air grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206669992U true CN206669992U (en) | 2017-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720281001.7U Active CN206669992U (en) | 2017-03-22 | 2017-03-22 | A kind of compact high efficient sound insulation return air grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206669992U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383734A (en) * | 2018-11-06 | 2019-02-26 | 无锡德林防务装备股份有限公司 | Return air grid with sound insulation function |
-
2017
- 2017-03-22 CN CN201720281001.7U patent/CN206669992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383734A (en) * | 2018-11-06 | 2019-02-26 | 无锡德林防务装备股份有限公司 | Return air grid with sound insulation function |
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