CN213020281U - Noise reduction device of exhaust system - Google Patents
Noise reduction device of exhaust system Download PDFInfo
- Publication number
- CN213020281U CN213020281U CN202021900029.2U CN202021900029U CN213020281U CN 213020281 U CN213020281 U CN 213020281U CN 202021900029 U CN202021900029 U CN 202021900029U CN 213020281 U CN213020281 U CN 213020281U
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- CN
- China
- Prior art keywords
- shell
- fixedly connected
- silencing
- noise
- exhaust system
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- 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
- 238000013016 damping Methods 0.000 claims abstract description 26
- 230000030279 gene silencing Effects 0.000 claims abstract description 17
- 229920000742 Cotton Polymers 0.000 claims abstract description 15
- 230000008030 elimination Effects 0.000 claims abstract description 6
- 238000003379 elimination reaction Methods 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 11
- 239000007789 gas Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a noise reduction device of an exhaust system, which comprises a shell, wherein the outer wall of the shell is fixedly connected with a noise reduction layer, one side of the shell is provided with an air inlet, the inner wall of the shell is fixedly connected with a supporting block, the bottom end of the supporting block is fixedly connected with a damping spring, one end of the damping spring is fixedly connected with a damping plate, the inside of the shell is fixedly connected with a clapboard, the inner part of the clapboard is provided with a through hole, the inner part of the shell is fixedly connected with soundproof cotton, the inner part of the shell is fixedly connected with a supporting plate, a silencing shell is arranged inside the supporting plate, a silencing sheet is arranged inside the silencing shell, the other side of the shell is provided with an air outlet, the outer wall of the silencing layer is fixedly connected with a fixed block, the inside of fixed block is provided with the screw hole, one side fixedly connected with noise elimination pole of fixed block. The utility model discloses in, through the processing of making an uproar falls in inside and outside while, improved the noise reduction effect.
Description
Technical Field
The utility model relates to a ventilation system's noise treatment technical field especially relates to exhaust system's the device of making an uproar that falls.
Background
Noise reduction, as the name implies, is to reduce the influence of noise on people, and in the current life, a lot of noise affects the life of people, so it is necessary to deal with the noise.
Present to the processing of making an uproar falls, mostly adopt the separation to fall and make an uproar, such method of making an uproar falls is not very suitable for, and when making an uproar falls in the separation, still can produce other noise, thereby influence the effect of making an uproar falls, in addition, the solitary separation that only falls is fallen and is made an uproar, can not the at utmost realize the noise reduction effect, consequently, need carry out multiple noise reduction processing, in order to fall those noises to do not influence people's life, in addition, when making an uproar falls the noise, still need carry out certain amortization to it, in order to realize the noise reduction effect maximize.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a noise reduction device of an exhaust system.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the noise reduction device of the exhaust system comprises a shell, wherein an outer wall fixedly connected with noise reduction layer of the shell is provided with an air inlet, an inner wall fixedly connected with supporting block of the shell, a bottom fixedly connected with damping spring of the supporting block, one end fixedly connected with damping plate of the damping spring, an inner fixedly connected with partition plate of the shell, a through hole is formed in the partition plate, inner fixedly connected with soundproof cotton of the shell, an inner fixedly connected with supporting plate of the shell, a noise reduction shell is arranged in the supporting plate, a noise reduction sheet is arranged in the noise reduction shell, an air outlet is formed in the other side of the shell, a fixed block is fixedly connected with an outer wall of the noise reduction layer, a threaded hole is formed in the fixed block, and a noise reduction rod is fixedly connected to one side of the fixed block.
As a further description of the above technical solution:
one end of the air inlet is arc-shaped, the vibration reduction plate is semicircular in structure, and the arc-shaped end of the air inlet is opposite to the center of the vibration reduction plate.
As a further description of the above technical solution:
the baffle is located soundproof cotton's left side, soundproof cotton is located the left side of backup pad.
As a further description of the above technical solution:
the one end of amortization shell is provided with the air exit, the quantity of air exit is a plurality of and evenly distribute in the one end of amortization shell.
As a further description of the above technical solution:
the fixed blocks are four groups and are evenly distributed on two sides of the silencing layer, and the fixed blocks are fixedly connected together through silencing rods.
As a further description of the above technical solution:
the air outlet runs through casing and amortization layer fixedly connected with amortization sponge.
The utility model discloses following beneficial effect has:
1. the utility model discloses in, through the damping, give sound insulation, multistep such as amortization is fallen and is made an uproar, can be furthest to realizing falling the noise treatment through ground wind-force, improved the effect of making an uproar widely, in addition, at the outside installation noise elimination pole of casing, the noise that produces when can be to the inside damping of casing falls makes an uproar, falls inside and outside synchronous, has improved the noise reduction effect.
2. The utility model discloses in, at the position installation amortization sponge of air outlet, can do final noise reduction to the gas of outflow, still remain a little noise after avoiding preceding falling an uproar, further improved the result that will be in, face the damping plate with the air intake in addition to use damping spring to be connected with the damping plate, can reduce gaseous velocity of flow on the one hand, thereby reduce the noise that produces when flowing, on the other hand can also avoid producing other noise when gaseous striking damping plate.
Drawings
Fig. 1 is a partial cross-sectional view of a noise reducer of an exhaust system according to the present invention;
fig. 2 is a front view of a noise reducer of an exhaust system according to the present invention;
fig. 3 is a partial side view of a noise reducer of an exhaust system according to the present invention;
fig. 4 is an enlarged schematic view of a portion a of fig. 1.
Illustration of the drawings:
1. a housing; 2. a sound-deadening layer; 3. a partition plate; 4. a through hole; 5. an air inlet; 6. a sound deadening housing; 7. a silencing sheet; 8. a sound-deadening sponge; 9. a support plate; 10. an air outlet; 11. sound insulation cotton; 12. a sound-deadening rod; 13. a fixed block; 14. a threaded hole; 15. a support block; 16. a damping spring; 17. a vibration damping plate; 18. an air outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, the present invention provides an embodiment: a noise reduction device of an exhaust system comprises a shell 1, wherein the outer wall of the shell 1 is fixedly connected with a noise reduction layer 2, one side of the shell 1 is provided with an air inlet 5, the inner wall of the shell 1 is fixedly connected with a supporting block 15, the bottom end of the supporting block 15 is fixedly connected with a damping spring 16, one end of the damping spring 16 is fixedly connected with a damping plate 17, the damping plate 17 is connected with the damping spring 16, other noises generated when gas collides with the damping plate 17 can be avoided as far as possible, a partition plate 3 is fixedly connected inside the shell 1, through holes 4 are formed inside the partition plate 3, the partition plate 3 can be installed to perform first-step noise reduction treatment on the entering gas, the influence of the noises can be reduced firstly, soundproof cotton 11 is fixedly connected inside the shell 1, the soundproof cotton 11 can perform second-step noise reduction on the gas entering through the through holes 4 inside the partition plate 3, and the noises are in a degree, inside fixedly connected with backup pad 9 of casing 1, the inside of backup pad 9 is provided with amortization shell 6, the inside of amortization shell 6 is provided with amortization piece 7, amortization piece 7 can be to the preceding gas of falling the completion of making an uproar and carry out the amortization, make the combustion gas sound very little, the opposite side of casing 1 is provided with air outlet 10, the outer wall fixedly connected with fixed block 13 on amortization layer 2, the inside of fixed block 13 is provided with screw hole 14, one side fixedly connected with noise elimination pole 12 of fixed block 13, noise elimination pole 12 can fall the impulsive noise that gas got into casing 1 production and make an uproar, inside and outside dual noise reduction, the effect of making an upr.
The one end of air intake 5 is the arc, damping plate 17's structure is semi-circular, the arc one end of air intake 5 is just to damping plate 17's center, baffle 3 is located soundproof cotton 11's left side, soundproof cotton 11 is located the left side of backup pad 9, the one end of amortization shell 6 is provided with air exit 18, the quantity of air exit 18 is a plurality of and distributes uniformly in the one end of amortization shell 6, the quantity of fixed block 13 is four groups and evenly distributed in 2 both sides on amortization layer, fixed block 13 is in the same place through 12 fixed connection of noise elimination pole, air outlet 10 runs through casing 1 and 2 fixedly connected with amortization sponge 8 on amortization layer.
The working principle is as follows: wind power enters the shell 1 through the air inlet 5, the wind power entering the shell 1 collides on the vibration reduction plate 17 through the air inlet 5, so that the speed of the entering high-flow-rate wind is reduced to achieve a first heavy noise reduction effect, as the wind power impacts on the vibration reduction plate 17 to generate additional noise, the upper end of the vibration reduction plate 17 is connected with the damping spring 16 to achieve the buffering effect and reduce the generation of other noise as much as possible, then the wind power blocked by the blocking plate 3 only allows a small amount of wind to pass through the through hole 4 in the partition plate 3 under the effect of the partition plate 3, so that the blocking and noise reduction of the wind power are achieved, the wind power passing through the through hole 4 enters the cavity between the soundproof cotton 11 and the partition plate 3, then the soundproof noise is reduced under the effect of the soundproof cotton 11, finally the wind power passing through the soundproof cotton 11 enters the final soundproof shell 6, passes through the soundproof sheet 7 and then is discharged from the air outlet 18 at one end of the soundproof shell 6, so as to achieve the effects of noise reduction and noise reduction, and finally the wind power is discharged from the air outlet 10.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. Noise reduction device of exhaust system, including casing (1), its characterized in that: the outer wall of the shell (1) is fixedly connected with a silencing layer (2), one side of the shell (1) is provided with an air inlet (5), the inner wall of the shell (1) is fixedly connected with a supporting block (15), the bottom end of the supporting block (15) is fixedly connected with a damping spring (16), one end of the damping spring (16) is fixedly connected with a damping plate (17), the inside of the shell (1) is fixedly connected with a partition plate (3), the inside of the partition plate (3) is provided with a through hole (4), the inside of the shell (1) is fixedly connected with soundproof cotton (11), the inside of the shell (1) is fixedly connected with a supporting plate (9), the inside of the supporting plate (9) is provided with a silencing shell (6), the inside of the silencing shell (6) is provided with a silencing sheet (7), and the other side of the shell (1) is provided, the outer wall fixedly connected with fixed block (13) of noise reduction layer (2), the inside of fixed block (13) is provided with screw hole (14), one side fixedly connected with noise elimination pole (12) of fixed block (13).
2. The noise reducer of an exhaust system of claim 1, wherein: one end of the air inlet (5) is arc-shaped, the structure of the vibration reduction plate (17) is semicircular, and the arc-shaped end of the air inlet (5) is opposite to the center of the vibration reduction plate (17).
3. The noise reducer of an exhaust system of claim 1, wherein: the baffle (3) is located the left side of soundproof cotton (11), soundproof cotton (11) is located the left side of backup pad (9).
4. The noise reducer of an exhaust system of claim 1, wherein: one end of the silencing shell (6) is provided with an air outlet (18), and the number of the air outlets (18) is a plurality of and is uniformly distributed at one end of the silencing shell (6).
5. The noise reducer of an exhaust system of claim 1, wherein: the number of the fixed blocks (13) is four, the fixed blocks are evenly distributed on two sides of the silencing layer (2), and the fixed blocks (13) are fixedly connected together through silencing rods (12).
6. The noise reducer of an exhaust system of claim 1, wherein: the air outlet (10) penetrates through the shell (1) and the silencing layer (2) and is fixedly connected with a silencing sponge (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021900029.2U CN213020281U (en) | 2020-09-03 | 2020-09-03 | Noise reduction device of exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021900029.2U CN213020281U (en) | 2020-09-03 | 2020-09-03 | Noise reduction device of exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213020281U true CN213020281U (en) | 2021-04-20 |
Family
ID=75474857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021900029.2U Expired - Fee Related CN213020281U (en) | 2020-09-03 | 2020-09-03 | Noise reduction device of exhaust system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213020281U (en) |
-
2020
- 2020-09-03 CN CN202021900029.2U patent/CN213020281U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20210420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |