CN207718799U - A kind of novel impedance complex muffler - Google Patents
A kind of novel impedance complex muffler Download PDFInfo
- Publication number
- CN207718799U CN207718799U CN201721666047.7U CN201721666047U CN207718799U CN 207718799 U CN207718799 U CN 207718799U CN 201721666047 U CN201721666047 U CN 201721666047U CN 207718799 U CN207718799 U CN 207718799U
- Authority
- CN
- China
- Prior art keywords
- protection board
- spring
- sound
- shaped protection
- sound attenuator
- 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
Links
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model provides a kind of novel impedance complex muffler,Including acoustical cotton,Sound-absorbing backplate,Protection slab,Partition board,Cavity,Upper U-shaped protection board,Spring one,Sound attenuator,Under U-shaped protection board and spring two,Acoustical cotton lower end is equipped with sound-absorbing backplate,Protection slab is installed below sound-absorbing backplate,Protection slab lower end is equipped with cavity,Cavity lower end is equipped with partition board,The design, which is realized, simultaneously absorbs high frequency noise and low frequency noise,Spring one is mounted on sound attenuator side,Sound attenuator side is equipped with spring two,Upper U-shaped protection board inner tip and under U-shaped protection board inner tip be mounted on spring two,Upper U-shaped protection board internal side wall and under U-shaped protection board internal side wall be both provided with spring one,Shock-absorbing function is realized in the design,Also it is further reduced noise simultaneously,Also defencive function is realized,The utility model is easy to use,Improve the scope of application,Stability is good,Reliability is high.
Description
Technical field
The utility model is a kind of novel impedance complex muffler, belongs to muffler technical field.
Background technology
Muffler be prevent sound transmission and allow air-flow by a kind of device, be eliminate air power noise weight
Want measure.Muffler is mounted in air powered equipment：Such as air blower, air compressor machine, boiler exhaust mouth, generator, water pump row
The device of reduction noise on the gas channels of equipment such as gas port noise is larger or in inlet and exhaust system.
Existing resistive muffler is mainly to be eliminated the noise using acoustic resistance, and dissipative muffler has good medium-high frequency sound damping quality
Can, it is poor to the acoustic attenuation performance of low frequency, cause the scope of application poor, existing resistive muffler when carrying out noise reduction, air-flow
By the way that muffler can be made to generate vibration, and then noise is generated, stability is poor, and erasure effect is poor.
Utility model content
In view of the deficienciess of the prior art, the utility model aim is to provide a kind of novel impedance complex muffler, with
The problems mentioned above in the background art are solved, the utility model is easy to use, improves the scope of application, stability is good, reliability
It is high.
To achieve the goals above, the utility model is to realize by the following technical solutions：A kind of novel impedance is multiple
Muffler is closed, including silencer mechanism and protection mechanism, the protection mechanism are internally provided with silencer mechanism, the silencer mechanism packet
Acoustical cotton, sound-absorbing backplate, protection slab, partition board and cavity are included, the acoustical cotton lower end is equipped with sound-absorbing backplate, the sound-absorbing backplate
Lower section is equipped with protection slab, and the protection slab lower end is equipped with cavity, and the cavity lower end is equipped with partition board, the protection mechanism packet
Include U-shaped protection board, spring one, sound attenuator, under U-shaped protection board and spring two, the spring one be mounted on sound attenuator side,
The sound attenuator side is equipped with spring two, is equipped with sound attenuator below the upper U-shaped protection board, is equipped with down below the sound attenuator
U-shaped protection board, the upper U-shaped protection board inner tip and under U-shaped protection board inner tip be mounted on spring two, it is described on
U-shaped protection board internal side wall and under U-shaped protection board internal side wall be both provided with spring one, the upper U-shaped protection board passes through bullet
Spring one and spring two are connected with sound attenuator, and U-shaped protection board is connected by spring one and spring two with sound attenuator under described
It connects, silencer mechanism is installed inside the sound attenuator.
Further, the silencer mechanism is equipped at least two, and at least two silencer mechanism structures are identical, and at least two
A silencer mechanism is equidistantly mounted on inside sound attenuator.
Further, the acoustical cotton is environment friendly acoustical absorption cotton, mineral wool, rock wool, mineral wool or foamed plastics, the sound-absorbing shield
Plate is formed by metal finish perforated plate punching.
Further, inlet channel is formed between the sound-absorbing backplate and protection slab, is equidistantly processed on the sound-absorbing backplate
There are at least two female rectangle spreading grooves, at least two male rectangle diffsuin stacks are equidistantly installed on the protection slab.
Further, the sound attenuator upper and lower ends and rear and front end are equidistantly equipped at least four springs two, institute
State sound attenuator by least four springs two respectively with upper U-shaped protection board and under U-shaped protection board be connected.
Further, the upper U-shaped protection board rear and front end is symmetrically installed with baffle one, under described before and after U-shaped protection board
Both ends are symmetrically arranged with baffle two, and one upper end of baffle is equipped with bolt, and nut is equipped on bolt, and nut is fixed on baffle
Two lower ends, and bolt lower end passes through baffle one and baffle two to be connected with nut, the upper U-shaped protection board U-shaped protection under
Plate is connected by bolt, nut, baffle one and baffle two.
The beneficial effects of the utility model：A kind of novel impedance complex muffler, the utility model by add acoustical cotton,
Sound-absorbing backplate, protection slab, partition board and cavity, the design collection resistive muffler, dilatation resistant noise-reducing device and resonance resistant noise-reducing
Device realizes that noise elimination of the muffler in wide frequency range, realization simultaneously absorb high frequency noise and low frequency noise in one,
Improve the scope of application, solve existing resistive muffler be mainly using acoustic resistance eliminate the noise, dissipative muffler have it is good in
High frequency acoustic attenuation performance, it is poor to the acoustic attenuation performance of low frequency, lead to problems such as the scope of application poor.
Because add upper U-shaped protection board, spring one, under U-shaped protection board and spring two, which realizes shock-absorbing function, carries
High stability, while it being also further reduced noise, it also realizes defencive function, improves service life, solve existing resistive
When carrying out noise reduction, air-flow is vibrated muffler by the way that muffler can be made to generate, and then generates noise, and stability is poor, noise reduction effect
The problems such as fruit is poor.
Because forming inlet channel between sound-absorbing backplate and protection slab, which realizes the flowing of air-flow, because adding female square
Shape spreading grooves and male rectangle diffsuin stack, the design realize the air-flow orienting reflex of different frequencies, further increase muffler
Sound-damping qualities, because the dismounting of U-shaped protection board, the utility model are realized in addition bolt, nut, baffle one and baffle two, the design
It is easy to use, the scope of application is improved, stability is good, and reliability is high.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon：
Fig. 1 is a kind of structural schematic diagram of novel impedance complex muffler of the utility model；
Fig. 2 is the schematic diagram of silencer mechanism in a kind of novel impedance complex muffler of the utility model；
Fig. 3 is the schematic diagram of protection mechanism in a kind of novel impedance complex muffler of the utility model；
In figure：1- silencer mechanisms, 2- protection mechanisms, 3- acoustical cottons, 4- sound-absorbings backplate, 5- protection slabs, 6- partition boards, 7- are empty
U-shaped protection board, 12- springs two under the upper U-shaped protection board of chamber, 8-, 9- springs one, 10- sound attenuators, 11-.
Specific implementation mode
To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below
In conjunction with specific implementation mode, the utility model is expanded on further.
- Fig. 3 is please referred to Fig.1, the utility model provides a kind of technical solution：A kind of novel impedance complex muffler, including
Silencer mechanism 1 and protection mechanism 2, protection mechanism 2 are internally provided with silencer mechanism 1.
Silencer mechanism 1 includes acoustical cotton 3, sound-absorbing backplate 4, protection slab 5, partition board 6 and cavity 7, and 3 lower end of acoustical cotton is equipped with
Sound-absorbing backplate 4,4 lower section of sound-absorbing backplate are equipped with protection slab 5, and 5 lower end of protection slab is equipped with cavity 7, and 7 lower end of cavity is equipped with partition board
6, which realizes silencing function.
Protection mechanism 2 include upper U-shaped protection board 8, spring 1, sound attenuator 10, under U-shaped protection board 11 and spring 2 12,
Spring 1 is mounted on 10 side of sound attenuator, and 10 side of sound attenuator is equipped with spring 2 12, and 8 lower section of upper U-shaped protection board is equipped with noise reduction
Case 10, the lower section of sound attenuator 10 are equipped with down U-shaped protection board 11, upper 8 inner tip of U-shaped protection board and under inside U-shaped protection board 11
Top is mounted on spring 2 12, upper 8 internal side wall of U-shaped protection board and under 11 internal side wall of U-shaped protection board be both provided with bullet
Spring 1, upper U-shaped protection board 8 are connected by spring 1 and spring 2 12 with sound attenuator 10, under U-shaped protection board 11 pass through
Spring 1 and spring 2 12 are connected with sound attenuator 10, and silencer mechanism 1 is equipped with inside sound attenuator 10, which realizes complete
Orientation damping.
Silencer mechanism 1 is equipped at least two, and at least two silencer mechanisms, 1 structure is identical, and at least two silencer mechanisms 1 are equidistant
Inside sound attenuator 10, acoustical cotton 3 be environment friendly acoustical absorption cotton, mineral wool, rock wool, mineral wool or foamed plastics, sound-absorbing backplate 4 by
Metal finish perforated plate punching forms, and forms inlet channel between sound-absorbing backplate 4 and protection slab 5, is equidistantly processed on sound-absorbing backplate 4
There are at least two female rectangle spreading grooves, at least two male rectangle diffsuin stacks are equidistantly installed on protection slab 5, on sound attenuator 10
Lower both ends and rear and front end are equidistantly equipped at least four springs 2 12, and sound attenuator 10 passes through at least four springs 2 12
Respectively with upper U-shaped protection board 8 and under U-shaped protection board 11 be connected, upper 8 rear and front end of U-shaped protection board is symmetrically installed with baffle
One, under 11 rear and front end of U-shaped protection board be symmetrically arranged with baffle two, and one upper end of baffle is equipped with bolt, and is equipped on bolt
Nut, and nut is fixed on two lower end of baffle, and bolt lower end passes through baffle one and baffle two to be connected with nut, it is upper U-shaped
The U-shaped protection board 11 under of protection board 8 is connected by bolt, nut, baffle one and baffle two.
Specific implementation mode：In progress in use, staff first checks the utility model, checks whether and deposit
In defect, it can not just carry out using if there is defect, need that maintenance personal is notified to repair at this time, if do not deposited
It can be carried out using if problem, in use, staff is first passed through in inlet channel pneumatic noise, pneumatic noise is logical
It crosses sound-absorbing backplate 4 to enter in acoustical cotton 3, acoustical cotton 3 can absorb majority of high frequency noise, while pneumatic noise can also pass through shield
Panel 5 enters in cavity 7, and cavity 7 can absorb most low frequency noises, realizes silencing function, while female rectangle spreading grooves
And the design of male rectangle diffsuin stack, it realizes the air-flow orienting reflex of different frequencies, further increases the sound-damping qualities of muffler, it should
Design collection resistive muffler, dilatation resistant noise-reducing device and resonance resistant noise-reducing device realize muffler in wide frequency range in one
Noise elimination, realize simultaneously high frequency noise and low frequency noise are absorbed, improve the scope of application.
For silencer mechanism 1 when carrying out noise reduction work, air-flow can make the generation of sound attenuator 10 shake in flowing in sound attenuator 10
It is dynamic, when sound attenuator 10 generates up-down vibration, spring 1 can be compressed or be stretched, and then spring 1 is made to generate elastic force,
Realizing reduces up-down vibration amplitude, when sound attenuator 10 generates front and back vibration, spring 2 12 can be compressed or be stretched, in turn
So that spring 2 12 is generated elastic force, realizing reduces front and back Oscillation Amplitude, realizes comprehensive damping, while upper U-shaped protection board 8 and under
The design of U-shaped protection board 11 can protect sound attenuator 10, which realizes shock-absorbing function, improve stability, while
It is further reduced noise, also realizes defencive function, improves service life.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case of the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent requirements of the claims
All changes are embraced therein.Any reference numeral in claim should not be considered as to the involved right of limitation
It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (6)
1. a kind of novel impedance complex muffler, including silencer mechanism (1) and protection mechanism (2), it is characterised in that：The guarantor
Shield mechanism (2) is internally provided with silencer mechanism (1)；
The silencer mechanism (1) includes acoustical cotton (3), sound-absorbing backplate (4), protection slab (5), partition board (6) and cavity (7), institute
It states acoustical cotton (3) lower end and is equipped with sound-absorbing backplate (4), protection slab (5), the protection slab are installed below the sound-absorbing backplate (4)
(5) lower end is equipped with cavity (7), and cavity (7) lower end is equipped with partition board (6)；
The protection mechanism (2) include upper U-shaped protection board (8), spring one (9), sound attenuator (10), under U-shaped protection board (11) with
And spring two (12), the spring one (9) are mounted on sound attenuator (10) side, sound attenuator (10) side is equipped with spring two
(12), sound attenuator (10) is installed below the upper U-shaped protection board (8), U-shaped protection board is equipped with down below the sound attenuator (10)
(11), upper U-shaped protection board (8) inner tip and under U-shaped protection board (11) inner tip be mounted on spring two (12),
Upper U-shaped protection board (8) internal side wall and under U-shaped protection board (11) internal side wall be both provided with spring one (9), it is described on
U-shaped protection board (8) is connected by spring one (9) and spring two (12) with sound attenuator (10), U-shaped protection board (11) under described
It is connected with sound attenuator (10) by spring one (9) and spring two (12), noise reduction machine is installed inside the sound attenuator (10)
Structure (1).
2. a kind of novel impedance complex muffler according to claim 1, it is characterised in that：The silencer mechanism (1) sets
Have at least two, at least two silencer mechanism (1) structures are identical, and at least two silencer mechanisms (1) are equidistantly mounted on
Sound attenuator (10) is internal.
3. a kind of novel impedance complex muffler according to claim 1, it is characterised in that：The acoustical cotton (3) is ring
Protect acoustical cotton, mineral wool, rock wool, mineral wool or foamed plastics etc., the sound-absorbing backplate (4) by the punching of metal finish perforated plate and
At.
4. a kind of novel impedance complex muffler according to claim 1, it is characterised in that：The sound-absorbing backplate (4) with
Inlet channel is formed between protection slab (5), and at least two female rectangle spreading grooves are equidistantly machined on the sound-absorbing backplate (4),
At least two male rectangle diffsuin stacks are equidistantly installed on the protection slab (5).
5. a kind of novel impedance complex muffler according to claim 1, it is characterised in that：The sound attenuator (10) is up and down
Both ends are equidistantly equipped at least two springs two (12), the sound attenuator (10) by least two spring two (12) branches with
Upper U-shaped protection board (8) and under U-shaped protection board (11) be connected, sound attenuator (10) rear and front end is both provided at least two
A spring two (12), the sound attenuator (10) pass through at least two spring two (12) branches and upper U-shaped protection board (8) and lower U
Type protection board (11) is connected.
6. a kind of novel impedance complex muffler according to claim 1, it is characterised in that：The upper U-shaped protection board (8)
Rear and front end is symmetrically installed with baffle one, and U-shaped protection board (11) rear and front end is symmetrically arranged with baffle two, and baffle one under described
Upper end is equipped with bolt, and nut is equipped on bolt, and nut is fixed on two lower end of baffle, and bolt lower end pass through baffle one with
And baffle two is connected with nut, the upper U-shaped protection board (8) U-shaped protection board (11) under passes through bolt, nut, baffle one
And baffle two is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666047.7U CN207718799U (en) | 2017-12-04 | 2017-12-04 | A kind of novel impedance complex muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666047.7U CN207718799U (en) | 2017-12-04 | 2017-12-04 | A kind of novel impedance complex muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207718799U true CN207718799U (en) | 2018-08-10 |
Family
ID=63059604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721666047.7U Expired - Fee Related CN207718799U (en) | 2017-12-04 | 2017-12-04 | A kind of novel impedance complex muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207718799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109436186A (en) * | 2018-12-24 | 2019-03-08 | 嘉兴市锦佳船舶制造有限公司 | A kind of hull soundproof plate |
-
2017
- 2017-12-04 CN CN201721666047.7U patent/CN207718799U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109436186A (en) * | 2018-12-24 | 2019-03-08 | 嘉兴市锦佳船舶制造有限公司 | A kind of hull soundproof plate |
| CN109436186B (en) * | 2018-12-24 | 2023-12-15 | 嘉兴市锦佳船舶制造股份有限公司 | Sound insulation board for ship body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102230407B (en) | Resistance-and-reactance-compounded exhaust silencer | |
| CN106439959A (en) | Low noise and large suction range hood | |
| CN207393415U (en) | A kind of muffler | |
| CN101950195A (en) | Low-noise case | |
| CN106014545A (en) | Novel silencer for engine | |
| CN207718799U (en) | A kind of novel impedance complex muffler | |
| CN208348778U (en) | A kind of ventilation shaft is built-in without windage Absorption System | |
| CN205638610U (en) | Silencer of making an uproar falls in exhaust and engine thereof | |
| CN210370852U (en) | Engine silencer | |
| CN108612569B (en) | Low-noise high-efficiency gas turbine exhaust system | |
| CN202117739U (en) | Resistant/retardant combined type exhaust muffler | |
| CN109945680A (en) | Cooling tower with silencer | |
| CN213574364U (en) | Noise prevention and control equipment for environmental protection engineering | |
| CN206487543U (en) | A kind of diesel-driven generator exhaust silencer system | |
| CN210830985U (en) | Rectangular array silencer for ventilation pipeline | |
| CN211820104U (en) | Silencer special for centrifugal fan | |
| CN203297164U (en) | Silencer | |
| CN106014543B (en) | Muffler for motor and its engine | |
| CN108005766A (en) | A kind of motorcycle silencer | |
| CN209993345U (en) | Hybrid silencer and silencing system | |
| CN208564692U (en) | Chain saw muffler | |
| CN220062098U (en) | Air conditioner muffler convenient to dismouting | |
| CN210956137U (en) | Noise absorbing device | |
| CN211820099U (en) | Fan silencing device | |
| CN220984159U (en) | Double-deck perforated plate impedance compound symmetry formula amortization piece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180810 Termination date: 20191204 |