CN106088698B - One kind is used for power-equipment noise reduction chamber - Google Patents

One kind is used for power-equipment noise reduction chamber Download PDF

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Publication number
CN106088698B
CN106088698B CN201610719206.9A CN201610719206A CN106088698B CN 106088698 B CN106088698 B CN 106088698B CN 201610719206 A CN201610719206 A CN 201610719206A CN 106088698 B CN106088698 B CN 106088698B
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CN
China
Prior art keywords
baffle
noise reduction
sound
plasterboard
power
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
CN201610719206.9A
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Chinese (zh)
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CN106088698A (en
Inventor
陈节庆
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.)
Pinghu Suifeng Hardware Co.,Ltd.
Original Assignee
周漪楠
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 周漪楠 filed Critical 周漪楠
Priority to CN201810429946.8A priority Critical patent/CN108798090A/en
Priority to CN201810429811.1A priority patent/CN108798089A/en
Priority to CN201810429836.1A priority patent/CN108756305A/en
Priority to CN201610719206.9A priority patent/CN106088698B/en
Publication of CN106088698A publication Critical patent/CN106088698A/en
Application granted granted Critical
Publication of CN106088698B publication Critical patent/CN106088698B/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
    • E04H1/12—Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
    • E04H1/1205—Small buildings erected in the open air
    • E04H1/1238—Shelters for engines, e.g. electrical meter housings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
    • E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • E04B2001/8466—Solid slabs or blocks layered with an intermediate layer formed of lines or dots of elastic material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element

Abstract

The invention discloses one kind to be used for power-equipment noise reduction chamber, including pedestal, symmetrical first baffle and second baffle are fixedly connected at the top of pedestal, there are cavitys for the inside of first baffle and second baffle, cover board is provided at the top of first baffle and second baffle, and exhaust outlet is offered at the top of cover board, the one side of second baffle offers air inlet, the inner bottom wall of pedestal is fixedly connected with the first plasterboard, deadening felt is provided at the top of first plasterboard, the one side of first baffle and second baffle, which offers, equidistantly distributes sound-absorption hole, one end of sound-absorption hole is provided with sound guide tube, and sound guide tube is connected with sound-absorption hole.This is used for power-equipment noise reduction chamber, by, to the circulating transfer of sound, consuming the energy of sound inside noise reduction ball, make noise less and less, reduce the penetrability of noise, make the whole purpose for realizing noise reduction, avoid the decline of worker's hearing in long duration noise working environment, it is ensured that the physical and mental health of worker.

Description

One kind is used for power-equipment noise reduction chamber
Technical field
The present invention relates to noise technical fields, specially a kind of to be used for power-equipment noise reduction chamber.
Background technology
Noise refers to that pitch and loudness of a sound variation are chaotic, sounds disharmonic sound, is by the irregular vibration of sounding body The sound of generation, noise pollution is mainly derived from communications and transportation, vehicle whistle, industrial noise, construction etc., in industrial construction In, powerful power-equipment is often used, whole noise is too strong, and worker's long-term work under strong noisy environment makes The hearing of worker gradually fails, and seriously affects the physical and mental health of worker.
Invention content
It is mentioned above in the background art to solve the purpose of the present invention is to provide one kind for power-equipment noise reduction chamber Problem.
To achieve the above object, the present invention provides following technical solution：One kind is for power-equipment noise reduction chamber, the bottom of including , it is fixedly connected with symmetrical first baffle and second baffle, the first baffle and second baffle at the top of the pedestal Inside there are cavity, be provided with cover board, and the row of offering at the top of cover board at the top of the first baffle and second baffle Air port, the one side of the second baffle offer air inlet, and the inner bottom wall of the pedestal is fixedly connected with the first plasterboard, institute It states and deadening felt is provided at the top of the first plasterboard, the one side of the first baffle and second baffle offers equidistant point Cloth sound-absorption hole, one end of the sound-absorption hole are provided with sound guide tube, and sound guide tube is connected with sound-absorption hole, the other end of the sound guide tube Noise reduction ball is provided with, and the other end of sound guide tube is connected with a through-hole of noise reduction outer surface of ball, the inside of the noise reduction ball is set The partition board being spaced substantially equidistant is equipped with, the outer surface of the noise reduction ball is provided with symmetrical support plate, one end of the support plate It is fixedly connected with the inner wall of first baffle, the other end of the support plate is provided with the second plasterboard, second plasterboard Side is provided with keel, and the another side of the keel is fixedly connected with the inner wall of first baffle.
Preferably, first plasterboard is equidistantly arranged in the inside of pedestal, between the first plasterboard of each two There are gap, inner space is provided with the first acoustical cotton.
Preferably, the middle part of each partition board offers acoustic mouth.
Preferably, the keel are internally provided with the second attraction cotton.
Preferably, the inside of the air inlet and air outlet is both provided with muffler.
Compared with prior art, the beneficial effects of the invention are as follows：This is used for power-equipment noise reduction chamber, by first baffle and The noise reduction ball set inside second baffle realizes the noise inside noise reduction chamber, passes through first baffle and second baffle one side The sound-absorption hole opened up is passed to the inside of noise reduction ball, by, to the circulating transfer of sound, consuming the energy of sound inside noise reduction ball, making Noise is less and less, in the first acoustical cotton and deadening felt set by chassis interior, reduces the penetrability of noise, makes whole reality The purpose of existing noise reduction, avoids the decline of worker's hearing in long duration noise working environment, it is ensured that the physical and mental health of worker.
Description of the drawings
Fig. 1 is front view of the present invention；
Fig. 2 is the sectional view of first baffle of the present invention；
Fig. 3 is the sectional view of pedestal of the present invention；
Fig. 4 is the front view of first baffle of the present invention；
Fig. 5 is the sectional view of noise reduction ball of the present invention.
In figure：1 pedestal, 2 first baffles, 3 second baffles, 4 cover boards, 5 exhaust outlets, 6 air inlets, 7 first plasterboards, 8 every Sound felt, 9 sound-absorption holes, 10 sound guide tubes, 11 noise reduction balls, 12 partition boards, 13 support plates, 14 second plasterboards, 15 keel, 16 first sound-absorbings Cotton, 17 second acoustical cottons.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment shall fall within the protection scope of the present invention.
- 5 are please referred to Fig.1, the present invention provides a kind of technical solution：One kind is for power-equipment noise reduction chamber, including pedestal 1, The top of pedestal 1 is fixedly connected with the inside of symmetrical first baffle 2 and second baffle 3, first baffle 2 and second baffle 3 There are cavity, the top of first baffle 2 and second baffle 3 is provided with cover board 4, and the top of cover board 4 offers exhaust outlet 5, The one side of second baffle 3 offers air inlet 6, and muffler is both provided with by the inside of air inlet 6 and exhaust outlet 5, it is ensured that Air circulation inside noise reduction chamber, and the leakage for the noise for preventing it internal, the inner bottom wall of pedestal 1 are fixedly connected with the first gypsum Plate 7, is equidistantly arranged in the inside of pedestal 1 by the first plasterboard 7, there are gap between the first plasterboard of each two 7, Inner space is provided with the first acoustical cotton 16, places noise reduction chamber interior noise and is revealed by pedestal 1, the top of the first plasterboard 7 It is provided with deadening felt 8, the one side of first baffle 2 and second baffle 3, which offers, equidistantly distributes sound-absorption hole 9, sound-absorption hole 9 One end is provided with sound guide tube 10, and sound guide tube 10 is connected with sound-absorption hole 9, and the other end of sound guide tube 10 is provided with noise reduction ball 11, and The other end of sound guide tube 10 is connected with a through-hole of 11 outer surface of noise reduction ball, and being internally provided with for noise reduction ball 11 is spaced substantially equidistant Partition board 12, acoustic mouth is offered by the middle part of each partition board 12, enable noise recycled inside noise reduction ball 11 and by Fade and consume its energy, realize the purpose of noise reduction, the outer surface of noise reduction ball 11 is provided with symmetrical support plate 13, support plate 13 One end is fixedly connected with the inner wall of first baffle 2, and the other end of support plate 13 is provided with the second plasterboard 14, the second plasterboard 14 Side be provided with keel 15, pass through second acoustical cotton 17 that is internally provided with of keel 15, absorb noise, it is further to realize The purpose of noise reduction, the another side of keel 15 are fixedly connected with the inner wall of first baffle 2.
Operation principle：In use, the noise reduction ball 11 set by first baffle 2 and 3 inside of second baffle, enables noise to lead to It crosses sound guide tube 10 to import inside it, enables noise circulating transfer inside it, consume the energy of noise, realize whole drop It makes an uproar.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (5)

1. one kind is for power-equipment noise reduction chamber, including pedestal（1）, it is characterised in that：The pedestal（1）Top be fixedly connected There is symmetrical first baffle（2）And second baffle（3）, the first baffle（2）And second baffle（3）There are skies for inside Chamber, the first baffle（2）And second baffle（3）Top be provided with cover board（4）, and cover board（4）Top offer air draft Mouthful（5）, the second baffle（3）One side offer air inlet（6）, the pedestal（1）Inner bottom wall be fixedly connected with One plasterboard（7）, first plasterboard（7）Top be provided with deadening felt（8）, the first baffle（2）And second baffle （3）One side offer and equidistantly distribute sound-absorption hole（9）, the sound-absorption hole（9）One end be provided with sound guide tube（10）, and Sound guide tube（10）With sound-absorption hole（9）Connection, the sound guide tube（10）The other end be provided with noise reduction ball（11）, and sound guide tube（10） The other end and noise reduction ball（11）The through-hole connection of outer surface, the noise reduction ball（11）Be internally provided with and be spaced substantially equidistant Partition board（12）, the noise reduction ball（11）Outer surface be provided with symmetrical support plate（13）, the support plate（13）One End and first baffle（2）Inner wall be fixedly connected, the support plate（13）The other end be provided with the second plasterboard（14）, it is described Second plasterboard（14）Side be provided with keel（15）, the keel（15）Another side and first baffle（2）Inner wall It is fixedly connected.
It is 2. according to claim 1 a kind of for power-equipment noise reduction chamber, it is characterised in that：First plasterboard（7） Equidistantly it is arranged in pedestal（1）Inside, the first plasterboard of each two（7）Between there are gap, inner space is provided with First acoustical cotton（16）.
It is 3. according to claim 1 a kind of for power-equipment noise reduction chamber, it is characterised in that：Each partition board（12）'s Middle part offers acoustic mouth.
It is 4. according to claim 1 a kind of for power-equipment noise reduction chamber, it is characterised in that：The keel（15）Inside It is provided with the second acoustical cotton（17）.
It is 5. according to claim 1 a kind of for power-equipment noise reduction chamber, it is characterised in that：The air inlet（6）And row Air port（5）Inside be both provided with muffler.
CN201610719206.9A 2016-08-25 2016-08-25 One kind is used for power-equipment noise reduction chamber Active CN106088698B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201810429946.8A CN108798090A (en) 2016-08-25 2016-08-25 One kind being used for power-equipment noise reduction chamber
CN201810429811.1A CN108798089A (en) 2016-08-25 2016-08-25 One kind being used for power-equipment noise reduction chamber
CN201810429836.1A CN108756305A (en) 2016-08-25 2016-08-25 One kind being used for power-equipment noise reduction chamber
CN201610719206.9A CN106088698B (en) 2016-08-25 2016-08-25 One kind is used for power-equipment noise reduction chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610719206.9A CN106088698B (en) 2016-08-25 2016-08-25 One kind is used for power-equipment noise reduction chamber

Related Child Applications (3)

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CN201810429946.8A Division CN108798090A (en) 2016-08-25 2016-08-25 One kind being used for power-equipment noise reduction chamber
CN201810429836.1A Division CN108756305A (en) 2016-08-25 2016-08-25 One kind being used for power-equipment noise reduction chamber
CN201810429811.1A Division CN108798089A (en) 2016-08-25 2016-08-25 One kind being used for power-equipment noise reduction chamber

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CN106088698A CN106088698A (en) 2016-11-09
CN106088698B true CN106088698B (en) 2018-06-19

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CN201810429946.8A Withdrawn CN108798090A (en) 2016-08-25 2016-08-25 One kind being used for power-equipment noise reduction chamber
CN201810429836.1A Withdrawn CN108756305A (en) 2016-08-25 2016-08-25 One kind being used for power-equipment noise reduction chamber
CN201610719206.9A Active CN106088698B (en) 2016-08-25 2016-08-25 One kind is used for power-equipment noise reduction chamber
CN201810429811.1A Withdrawn CN108798089A (en) 2016-08-25 2016-08-25 One kind being used for power-equipment noise reduction chamber

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CN201810429836.1A Withdrawn CN108756305A (en) 2016-08-25 2016-08-25 One kind being used for power-equipment noise reduction chamber

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* Cited by examiner, † Cited by third party
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CN109024949A (en) * 2018-08-31 2018-12-18 佛山市锐拓环境工程设备有限公司 A kind of environment-friendly engineering noise abatement equipment
CN109138787A (en) * 2018-11-13 2019-01-04 江苏金泰祥内外门业有限公司 A kind of super-silent door
CN113288654B (en) * 2021-05-18 2022-11-08 合肥恒诚智能技术有限公司 Noise reduction device for hypoxia instrument
CN113605267B (en) * 2021-08-04 2022-12-13 四川省交通勘察设计研究院有限公司 Environment-friendly noise reduction barrier and surface treatment process thereof
CN114809736A (en) * 2022-05-12 2022-07-29 黄河水利职业技术学院 Music sound insulation room

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CN2091905U (en) * 1991-03-13 1992-01-01 孙长庆 Stereo and sound-absorption decorative plaster slab
CN1097034A (en) * 1993-07-02 1995-01-04 王涤海 Muffler plate
JPH1088690A (en) * 1996-09-11 1998-04-07 Taisei Corp Direct sticking method for internal facing board and sound insulating wall construction
JPH10266388A (en) * 1997-03-27 1998-10-06 Matsushita Electric Works Ltd Damping sound insulating panel
CN2618964Y (en) * 2003-04-14 2004-06-02 北新建材(集团)有限公司 Composite voice absorptive board
FR2857392A1 (en) * 2003-07-09 2005-01-14 Distrib Staff Mecanique Dsm Acoustic insulation panel, especially for ceiling, has facing layer of perforated plaster
JP2007107315A (en) * 2005-10-14 2007-04-26 Panahome Corp Sound insulating partition wall
CN101660353A (en) * 2009-09-02 2010-03-03 三一重工股份有限公司 Noise reduction chamber
CN102022013A (en) * 2010-11-05 2011-04-20 江苏省电力设计院 Noise reduction structure of main noise resources of urban indoor substation
CN203200943U (en) * 2013-04-25 2013-09-18 戚玉松 Building engineering sound insulation device
CN203466450U (en) * 2013-09-26 2014-03-05 国家电网公司 Noise isolation device for power equipment
CN103726690A (en) * 2012-10-16 2014-04-16 黄石畅达塑胶有限公司 Noise reduction chamber of PVC water supply pipe cutting machine
CN204475582U (en) * 2015-02-11 2015-07-15 天津市世木建筑装饰工程有限公司 A kind of indoor sound-proof wall body structure
CN204645298U (en) * 2015-05-25 2015-09-16 常州国源包装有限公司 Adopt sound wallboard
CN204804082U (en) * 2015-05-28 2015-11-25 北京谐声昊普声学技术有限公司 Three -dimensional sound insulation panel
CN204920067U (en) * 2015-08-04 2015-12-30 广州天之湘装饰材料有限公司 Dalle gives sound insulation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2091905U (en) * 1991-03-13 1992-01-01 孙长庆 Stereo and sound-absorption decorative plaster slab
CN1097034A (en) * 1993-07-02 1995-01-04 王涤海 Muffler plate
JPH1088690A (en) * 1996-09-11 1998-04-07 Taisei Corp Direct sticking method for internal facing board and sound insulating wall construction
JPH10266388A (en) * 1997-03-27 1998-10-06 Matsushita Electric Works Ltd Damping sound insulating panel
CN2618964Y (en) * 2003-04-14 2004-06-02 北新建材(集团)有限公司 Composite voice absorptive board
FR2857392A1 (en) * 2003-07-09 2005-01-14 Distrib Staff Mecanique Dsm Acoustic insulation panel, especially for ceiling, has facing layer of perforated plaster
JP2007107315A (en) * 2005-10-14 2007-04-26 Panahome Corp Sound insulating partition wall
CN101660353A (en) * 2009-09-02 2010-03-03 三一重工股份有限公司 Noise reduction chamber
CN102022013A (en) * 2010-11-05 2011-04-20 江苏省电力设计院 Noise reduction structure of main noise resources of urban indoor substation
CN103726690A (en) * 2012-10-16 2014-04-16 黄石畅达塑胶有限公司 Noise reduction chamber of PVC water supply pipe cutting machine
CN203200943U (en) * 2013-04-25 2013-09-18 戚玉松 Building engineering sound insulation device
CN203466450U (en) * 2013-09-26 2014-03-05 国家电网公司 Noise isolation device for power equipment
CN204475582U (en) * 2015-02-11 2015-07-15 天津市世木建筑装饰工程有限公司 A kind of indoor sound-proof wall body structure
CN204645298U (en) * 2015-05-25 2015-09-16 常州国源包装有限公司 Adopt sound wallboard
CN204804082U (en) * 2015-05-28 2015-11-25 北京谐声昊普声学技术有限公司 Three -dimensional sound insulation panel
CN204920067U (en) * 2015-08-04 2015-12-30 广州天之湘装饰材料有限公司 Dalle gives sound insulation

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Publication number Publication date
CN108798089A (en) 2018-11-13
CN108756305A (en) 2018-11-06
CN106088698A (en) 2016-11-09
CN108798090A (en) 2018-11-13

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