CN205881448U - Impedance compound right -angled muffler - Google Patents

Impedance compound right -angled muffler Download PDF

Info

Publication number
CN205881448U
CN205881448U CN201620664274.5U CN201620664274U CN205881448U CN 205881448 U CN205881448 U CN 205881448U CN 201620664274 U CN201620664274 U CN 201620664274U CN 205881448 U CN205881448 U CN 205881448U
Authority
CN
China
Prior art keywords
sound
cavity
abatvoix
muffler
noise
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.)
Active
Application number
CN201620664274.5U
Other languages
Chinese (zh)
Inventor
陈劲松
李钊
张何元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Heng Cheng Chi Road Mdt Infotech Ltd
Original Assignee
Guangzhou Heng Cheng Chi Road Mdt Infotech Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangzhou Heng Cheng Chi Road Mdt Infotech Ltd filed Critical Guangzhou Heng Cheng Chi Road Mdt Infotech Ltd
Priority to CN201620664274.5U priority Critical patent/CN205881448U/en
Application granted granted Critical
Publication of CN205881448U publication Critical patent/CN205881448U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

This patent application belongs to the equipment of making an uproar that falls technical field, specifically discloses an impedance compound right -angled muffler, including the muffler casing body, and hindering nature sound -attenuating structure and resistance sound -attenuating structure, muffler casing body cheng " L " quadrature tube say the structure, the inner wall of the muffler casing body inlays and is equipped with many magnetic stripes, the nature sound -attenuating structure of hindering includes a plurality of abatvoixs, the one end of abatvoix can be dismantled with the inner wall of the muffler casing body and be connected, resistance sound -attenuating structure includes a plurality of sound cavitys of inhaling, inhale sound cavity outside cheng " L " shape, inhale sound cavity inboard and be arc, inhale the inside cavity that is of sound cavity, the inner wall of inhaling sound cavity and the muffler casing body can be dismantled and be connected. Compared with the prior art, this silencer simple structure, be convenient for make, convenient operation is quick, very effectual realization of silencer is applicable to the inconsistent various occasions of the noise condition, this silencer has still possessed certain self -cleaning ability simultaneously.

Description

Impedance complex right-angled muffler
Technical field
This utility model belongs to noise reducing apparatus technical field, particularly relates to a kind of impedance complex right-angled muffler.
Background technology
Ventilation silencer is called for short acoustic filter, is to stop sound transmission and a kind of acoustic equipment of allowing air-flow to pass through.Needing Keep relatively low background noise, intercept the place of outside noise impact, and strong noise place is to prevent noise to surrounding Impact, meanwhile, needs again ventilation, is both needed to arrange acoustic filter.Pole applied on architectural acoustics, noise control engineering by acoustic filter For extensively.The kind of acoustic filter is a lot, and its noise elimination mechanism has resistance noise reduction, reactive muffling, impedance complex formula noise elimination etc..Common disappear Sound device uses resistive plate silencer, and this kind of acoustic filter has the feature of simple in construction, but, also exist and low-frequency noise is disappeared Sound effective value is undesirable, and the existence of the spacing of chip can produce high frequency and lose efficacy.Reactive muffler be by the sudden change of pipeline section at Or side connects resonant cavity etc. and causes the change of impedance to produce the reflection of acoustic energy, interference during acoustic propagation, thus reduce by disappearing Sound device is to extraradial acoustic energy, to reach the acoustic filter of noise elimination purpose.
Impedance muffler refers to acoustic filter sound absorption and sound reflecting combined rightly.Its most existing resistance Property acoustic filter eliminate medium, high frequency noise and reactive muffler and eliminate low, the characteristic of mid-frequency noise, there is wide band effect of eliminating the noise Really.Impedance composite muffler is exactly to high, the significant dissipative muffler of mid-frequency noise soundproof effect and centering, low-frequency noise The combination of soundproof effect significant reactive muffler is constituted.
But, it is relatively big that existing impedance muffler also exists windage, and resistant part does not possess absorption high-frequency noise Function, it addition, standard specifications is unified, it is more difficult in the practical situation according to noise, corresponding adjustment dissipative muffler part and resistance The structure of muffler section, makes noise apparatus can use the place of various noise situations.Existing impedance muffler does not has yet Realize according to wind direction, relative to the function of regulation acoustic filter internal structure.
Utility model content
The purpose of this utility model is providing a kind of impedance complex right-angled muffler, to solve to be difficult to according to noise situations phase The problem that should regulate acoustic filter internal structure.
In order to achieve the above object, base case of the present utility model is: impedance complex right-angled muffler, including acoustic filter Housing, resistance noise reduction structure and reactive muffling structure, the described suppressor case right angle pipeline configuration in " ", described acoustic filter The inwall of housing is embedded with many magnetic stripes;Described resistance noise reduction structure includes multiple abatvoix, one end of described abatvoix with disappear The inwall of sound device housing removably connects;Described reactive muffling structure includes multiple sound-absorbing cavity, the external side of described sound absorption cavity in " " shape, sound-absorbing inside cavities is circular arc, and sound-absorbing inside cavity is cavity, described sound-absorbing cavity and the inwall of suppressor case Removably connect.
The operation principle of this base case is: this acoustic filter can need to eliminate noise situations according to place, noise place Demand, assemble corresponding acoustic filter.The resistance noise reduction structure of multiple abatvoixs composition, can be to the medium, high frequency in noise Sound wave carries out absorption process.The reactive muffling structure of multiple sound-absorbing cavitys composition, by being arranged on suppressor case right angle Sound-absorbing cavity, can by noise, low-frequency noise eliminates the noise;For convenience in the installation of sound-absorbing cavity, the outside of sound-absorbing cavity At right angles shape.Abatvoix and sound-absorbing cavity can be multiple, are mounted in suppressor case, according to place noise Situation, optionally installs abatvoix and the number of sound-absorbing cavity, thus in the case of ensureing not waste resource, by this Noise effectively absorption is processed by acoustic filter.Abatvoix one end removably connects with the inside of suppressor case, at this acoustic filter When noise is processed, the wind that the air of circulation is formed in this acoustic filter, it will to abatvoix the other end have a work Firmly so that abatvoix produces vibration, so that the dust accumulated on abatvoix when this acoustic filter uses is processed. Be embedded at suppressor case inwall is many with magnetic stripe, the most of dust in adsorbable acoustic filter, prevents dust to be attached to inhale On soundboard or sound-absorbing cavity, affect the erasure effect of this deafener.When this deafener uses, wind can flow in this deafener Logical, the dust that magnetic stripe adheres to can be taken away.
In the place that noise ratio is more, in the case of basic, normal, high frequency sound wave is the most more, can install in suppressor case More sound-absorbing cavity and abatvoix, process noise.In the case of low, intermediate frequency sound wave is the most more, can be at acoustic filter More abatvoix, a small amount of sound-absorbing cavity are installed in housing, noise is processed.In the feelings that medium, high frequency sound wave is the most more Under condition, more sound-absorbing cavity, a small amount of sound-absorbing cavity can be installed in suppressor case, noise is processed.
Having the beneficial effects that of this base case: the suppressor case of the right angle pipeline configuration in " ", eliminates the noise at noise After device enclosure interior, effectively can be processed by its internal structure, not processed after preventing partial noise from flowing through suppressor case;Simultaneously This structure is easily installed in the occasion of noise.Resistance noise reduction structure effectively can carry out absorption process to the sound wave of medium, high frequency, Reactive muffling structure effectively centering, the sound wave of low frequency can carry out noise elimination process.By adjust in suppressor case abatvoix and The quantity of sound-absorbing cavity, makes this acoustic filter realize being suitable for the place of different noise situation.Abatvoix and sound-absorbing cavity pass through Dismountable inside being connected to suppressor case so that this acoustic filter can be many by installing the quantity of attracting board and sound-absorbing cavity Few, realize the adjustment to acoustic filter, its simple in construction, operate quick and convenient easy manufacture.This acoustic filter employs resistive simultaneously Combine with resistance, make this acoustic filter can to noise eliminate the noise while, it is also possible to ventilate.Magnetic stripe then can adsorb muffler shell Internal dust granule, when this deafener uses, adsorbed dust granule will be carried away by the wind, it is achieved that automated cleaning disappears Function within sound device.Compared with prior art, this acoustic wave filter structure is simple, be easy to manufacture, easy to operate quickly, acoustic filter is non- Often effectively achieving and be applicable to the various occasions that noise situation is inconsistent, this acoustic filter has been also equipped with certain the most clear simultaneously Clean ability.
Scheme two: based on scheme preferred, the inside of described suppressor case is provided with for installing sound-absorbing cavity Elastic mounting groove, described sound-absorbing cavity is provided with the installation portion engaged with mounting groove;The inside of described suppressor case is provided with For installing the elastic slot of abatvoix, described abatvoix one end is provided with the holding section engaged with slot.Mounting groove and Connection between installation portion, can realize sound-absorbing cavity Fast Installation on the inwall of suppressor case;Slot and holding section Connection can realize abatvoix Fast Installation on the inwall of suppressor case.Mounting groove and slot are elasticity, will Abatvoix and sound-absorbing cavity can be made also quickly to disassemble.Make this acoustic filter can also make according to concrete after installing Corresponding adjustment is made by situation.
Scheme three: preferred as scheme two, described slot and mounting groove are multiple, the slot on same sidewall Being parallel to each other, and be both connected on slot on connection strap, slot is rotationally connected with suppressor case.Slot and mounting groove It is multiple, the needs according to practical situation can be easy to, selective installation abatvoix and sound-absorbing cavity.Slot is only being eliminated the noise On one sidewall of device, slot being both connected on connection strap, slot is rotationally connected with suppressor case.Connection strap can be by So the distance between slot is fixed so that all slot is unanimously around the rotation of suppressor case thin tail sheep.Abatvoix with Carrying out noise absorbing in processing procedure, entering the air of suppressor case with noise, it will making abatvoix circulate with air Direction rotate so that this acoustic filter has the performance of good ventilating air.
Scheme four: based on scheme, scheme two, any one of scheme three preferred, the smooth surface of described abatvoix, its Internal for filling chamber, fill intracavity and fill sound-absorbing material.Noise is when entering this acoustic filter, and air will enter this noise elimination therewith Device, in order to make this acoustic filter not stop the circulation of air, becomes smooth by the surface configuration of abatvoix, simultaneously in order to ensure sound-absorbing Plate centering.The treatment effect of high-frequency noise, hollows out inside abatvoix, fills sound-absorbing material.
Scheme five: preferred as scheme four, the size between the plurality of sound-absorbing cavity is inconsistent.Owing to eliminating the noise The inside right angle of device housing is the most few, is only capable of installing a small amount of sound-absorbing cavity, can not fully meet certain in suppressor case Demand in the case of Xie, to sound-absorbing cavity.The size of each sound-absorbing cavity is different, can be many to sound-absorbing cavity demand number Time, select the big sound-absorbing cavity of size, size mend sound-absorbing cavity with the use of so that this acoustic filter range is more Extensively.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model impedance complex right-angled muffler embodiment;
Fig. 2 is the structural representation of reactive muffling structure in Fig. 1;
Fig. 3 is the structural representation of Fig. 1 slot and mounting bar.
Detailed description of the invention
Below by detailed description of the invention, this utility model is described in further detail:
Reference in Figure of description includes: suppressor case 10, flange-interface 11, air outlet louver 12, magnetic stripe 13, abatvoix 20, sound-absorbing material 21, sound-absorbing cavity 30, installation portion 31, slot 40, connection strap 41.
As it is shown in figure 1, impedance complex right-angled muffler, including suppressor case 10, resistance noise reduction structure and reactive muffling Structure, the suppressor case 10 right angle pipeline configuration in " ", the port of the left surface of suppressor case 10 is flange-interface 11, Acoustic filter right output port is mounted with air outlet louver 12.The inwall of suppressor case 10 is embedded with many magnetic stripes 13, and adsorbable disappears Most of dust in sound device, during this acoustic filter uses, enters the wind in this acoustic filter and can take away absorption at magnetic stripe 13 On dust, make this acoustic filter automated cleaning.Resistance noise reduction structure includes multiple abatvoix 20, the smooth surface of abatvoix 20, It is internal for filling chamber, fills intracavity and is filled with the sound-absorbing material 21 of similar acoustical cotton.Reactive muffling structure includes multiple sound-absorbing Cavity 30, is arranged on the inside of suppressor case 10, for convenience in " " shape outside sound-absorbing cavity 30 in sound-absorbing cavity 30;As Shown in Fig. 2, in order to the soundproof effect making sound-absorbing cavity 30 is more preferable, in circular arc inside sound-absorbing cavity 30, sound-absorbing cavity 30 is internal For cavity, there is various sizes of sound-absorbing cavity 30.The right angle of the inside of suppressor case 10 is equipped with for installing sound absorption cavity The elastic mounting groove of body 30, sound-absorbing cavity 30 is provided with the installation portion 31 engaged with mounting groove;Make the sound-absorbing cavity 30 can be Quick despatch in suppressor case 10.
The fast assembling-disassembling of abatvoix 20 for convenience, as it is shown on figure 3, the inside of suppressor case 10 is provided with for installing suction The elastic slot 40 of soundboard 20, abatvoix 20 one end is provided with the holding section engaged with slot 40.Slot 40 is multiple, Each slot 40 is rotationally connected with on suppressor case 10 inwall, and all slots 40 are parallel to each other, simultaneously in all engagings Groove 40 has all welded on a connection strap 41 so that all slots 40 can produce skew in the same direction simultaneously.
When being embodied as, in the more place of noise ratio, in the case of basic, normal, high frequency sound wave is the most more, can be at acoustic filter shell More multiple sound-absorbing cavitys 30 and abatvoix 20, and the sound-absorbing cavity 30 of large-size are installed, in body 10 at noise Reason.In the case of low, intermediate frequency sound wave is the most more, more abatvoix 20 can be installed in suppressor case 10, and a small amount of Sound-absorbing cavity 30, processes noise.In the case of medium, high frequency sound wave is the most more, can install in suppressor case 10 More sound-absorbing cavity 30, and a small amount of sound-absorbing cavity 30, process noise.Sound-absorbing cavity 30 installation site is limited, can Various sizes of sound-absorbing cavity 30 is selected according to practical situation.
This acoustic filter can need to eliminate the demand of noise situations according to place, noise place, assemble corresponding noise elimination Device.During this acoustic filter uses, the resistance noise reduction structure of abatvoix 20 composition, the medium, high frequency sound wave in noise can be carried out Absorption processes.The reactive muffling structure of sound-absorbing cavity 30 composition, is arranged on suppressor case 10 right angle, can be by noise In, low-frequency noise eliminate the noise;For convenience in the installation of sound-absorbing cavity 30, the rectangular shape in outside of sound-absorbing cavity 30.Optionally Abatvoix 20 and sound-absorbing cavity 30 are installed, can be effective by noise by this acoustic filter in the case of ensureing not waste resource Absorption processes.Abatvoix 20 one end removably connects with the inside of suppressor case 10, processes noise at this acoustic filter Time, the wind that the air of circulation is formed in this acoustic filter, it will to abatvoix 20 the other end have an active force so that sound-absorbing Plate 20 produces vibration, so that accumulation dust on abatvoix 20 is processed when this acoustic filter uses.It is embedded and is disappearing Sound device housing 10 inwall many with magnetic stripe 13, the most of dust in adsorbable acoustic filter, prevent dust to be attached to abatvoix 20 or sound-absorbing cavity 30 on, affect the erasure effect of this deafener.When this deafener uses, adsorbed dust granule will Can be carried away by the wind, it is achieved that the function within automated cleaning acoustic filter.
Above-described is only embodiment of the present utility model, and in scheme, the known general knowledge such as concrete structure and characteristic is at this Too much describe.It should be pointed out that, for a person skilled in the art, in the premise without departing from this utility model structure Under, it is also possible to making some deformation and improvement, these also should be considered as protection domain of the present utility model, and these are all without impact The effect of this utility model enforcement and practical applicability.The protection domain that this application claims should be with the content of its claim Being as the criterion, the detailed description of the invention in description etc. records the content that may be used for explaining claim.

Claims (5)

1. impedance complex right-angled muffler, including suppressor case, resistance noise reduction structure and reactive muffling structure, its feature exists In, the described suppressor case right angle pipeline configuration in " ", the inwall of described suppressor case is embedded with many magnetic stripes;Described Resistance noise reduction structure includes that multiple abatvoix, one end of described abatvoix removably connect with the inwall of suppressor case;Described Reactive muffling structure includes multiple sound-absorbing cavity, and the external side of described sound absorption cavity is in " " shape, and sound-absorbing inside cavities is circular arc, inhales Sound inside cavity is cavity, and described sound-absorbing cavity removably connects with the inwall of suppressor case.
2. impedance complex right-angled muffler as claimed in claim 1, it is characterised in that the inside of described suppressor case is provided with For installing the elastic mounting groove of sound-absorbing cavity, described sound-absorbing cavity is provided with the installation portion engaged with mounting groove;Described disappear The inside of sound device housing is provided with the elastic slot for installing abatvoix, and described abatvoix one end is provided with and engages with slot Holding section.
3. impedance complex right-angled muffler as claimed in claim 2, it is characterised in that described slot and mounting groove are many Individual, the slot on same sidewall is parallel to each other, and is both connected on slot on connection strap, and slot turns with suppressor case It is dynamically connected.
4. the impedance complex right-angled muffler as described in any one of claim 1-3, it is characterised in that the surface of described abatvoix Smooth, it is internal for filling chamber, fills intracavity and fills sound-absorbing material.
5. impedance complex right-angled muffler as claimed in claim 4, it is characterised in that the chi between the plurality of sound-absorbing cavity Very little cause not of uniform size.
CN201620664274.5U 2016-06-29 2016-06-29 Impedance compound right -angled muffler Active CN205881448U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620664274.5U CN205881448U (en) 2016-06-29 2016-06-29 Impedance compound right -angled muffler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620664274.5U CN205881448U (en) 2016-06-29 2016-06-29 Impedance compound right -angled muffler

Publications (1)

Publication Number Publication Date
CN205881448U true CN205881448U (en) 2017-01-11

Family

ID=57694529

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620664274.5U Active CN205881448U (en) 2016-06-29 2016-06-29 Impedance compound right -angled muffler

Country Status (1)

Country Link
CN (1) CN205881448U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106057187A (en) * 2016-06-29 2016-10-26 广州恒成智道信息科技有限公司 Resistive and reactive combined assembly type muffler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106057187A (en) * 2016-06-29 2016-10-26 广州恒成智道信息科技有限公司 Resistive and reactive combined assembly type muffler

Similar Documents

Publication Publication Date Title
CN102522079B (en) Impedance compound right-angled muffler
CN106057187A (en) Resistive and reactive combined assembly type muffler
JP2005066309A (en) Vacuum cleaner silencer
CN104165255B (en) A kind of air pipeline active-passive composite silencing apparatus
CN103562562B (en) Aerator with Sound Attenuator
JP2008151081A (en) Mixed flow fan
CN107355397B (en) Low-noise centrifugal ventilator with noise-reducing liner and air purifying device
WO2016054947A1 (en) Vacuum cleaner
CN103850987A (en) Fan muffler for dust remover
WO2004052165A1 (en) Silencing means used in the dust cleaner
CN205881448U (en) Impedance compound right -angled muffler
CN203286197U (en) Active-passive composite silencer for ventilation pipeline
CN214614692U (en) Sound insulation assembly for opera house
RU2413076C2 (en) Chamber sound supressor
CN203812558U (en) Micropore composite disc type silencer
CN103671280B (en) Composite chimney silencer
CN108868967A (en) A kind of automobile silencer of excellent noise reduction effect
CN202866938U (en) Impedance combined type muffler
WO2019151931A1 (en) An air vent
CN212587212U (en) Novel sheet type silencer
CN209706228U (en) A kind of fan coil of efficient noise abatement
RU157128U1 (en) COMBINED SILENCER OF AERODYNAMIC NOISE
CN210423168U (en) Fan capable of reducing noise
CN106050750A (en) High-air-volume piece-type impedance composite silencer
CN107956751B (en) Silencing device and sweeping machine

Legal Events

Date Code Title Description
GR01 Patent grant