CN109629401A - A kind of novel and multifunctional overpass sound arrester and method - Google Patents

A kind of novel and multifunctional overpass sound arrester and method Download PDF

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Publication number
CN109629401A
CN109629401A CN201910033720.0A CN201910033720A CN109629401A CN 109629401 A CN109629401 A CN 109629401A CN 201910033720 A CN201910033720 A CN 201910033720A CN 109629401 A CN109629401 A CN 109629401A
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CN
China
Prior art keywords
telescopic rod
soundproof plate
novel
connect
sound
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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.)
Granted
Application number
CN201910033720.0A
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Chinese (zh)
Other versions
CN109629401B (en
Inventor
苏国宏
胡斌
杨晨霞
张学炜
郭遂军
吕品
吕一品
张伟
唐朝美
孙新兵
华和贵
王建钦
王爱
王隽
包方
包一方
晋克强
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.)
Luoyang Co Ltd Of Urban Construction Surveying And Designing Institute
Original Assignee
Luoyang Co Ltd Of Urban Construction Surveying And Designing Institute
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Application filed by Luoyang Co Ltd Of Urban Construction Surveying And Designing Institute filed Critical Luoyang Co Ltd Of Urban Construction Surveying And Designing Institute
Priority to CN201910033720.0A priority Critical patent/CN109629401B/en
Publication of CN109629401A publication Critical patent/CN109629401A/en
Application granted granted Critical
Publication of CN109629401B publication Critical patent/CN109629401B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0017Plate-like elements
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0029Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • F21S9/03Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light
    • F21S9/032Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator rechargeable by exposure to light the solar unit being separate from the lighting unit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0464Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/006General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10Outdoor lighting
    • F21W2131/103Outdoor lighting of streets or roads
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/72Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention belongs to field of road construction, a kind of novel and multifunctional overpass sound arrester and method are disclosed, soundproof plate is provided with;Soundproof plate front and soundproof plate lower rear are welded with fixed frame, have been connected through a screw thread on fixed frame and have tightened bolt;Fixed mount setting has the first telescopic rod, the second telescopic rod, and telescopic rod outer cylinder is provided with through-hole, and telescopic rod interior bar is provided with groove, and groove is welded with spring, spring and weld tabs, and convex block is plugged on inside through-hole;Soundproof plate front fluting has sound-absorption hole, is filled with glass sponge between soundproof plate front and sound insulation back.The present invention is provided with the first telescopic rod, the second telescopic rod, the compactness with bridge side plate can be increased, increase the fixed fastness of soundproof plate, it avoids traditionally due to being fixed, lead to that there are gaps with overpass, encounters bad weather, shake soundproof plate, the effect for reducing sound insulation, exists simultaneously certain danger.

Description

A kind of novel and multifunctional overpass sound arrester and method
Technical field
The invention belongs to field of road construction more particularly to a kind of novel and multifunctional overpass sound arrester and methods.
Background technique
Sound is a kind of wavy energy, needs medium that could propagate.Sound is in same Propagation, Media density Bigger, spread speed is faster.For example the spread speed in normal temperature air is about 340 meter per seconds, the spread speed in rail is about For 5200 meter per seconds.Another propagate of sound is exactly across medium propagation.I.e. from a kind of medium, critical across two media is connect Contacting surface enters another medium, at this point, the transmitting essence of sound energy is the transmitting of Oscillation Amplitude.When across medium propagation, two media Density difference it is bigger, sound can loss it is bigger.And in practical application, air be mankind's normality under activity space, then with sky The material that air tightness differs bigger is generally the very high material of density, that is, can be considered acoustic material.Density is higher, and soundproof effect is got over It is good.Plate made of such material, referred to as soundproof plate.But the fixed frame of existing overpass sound arrester makes to immobilize , cause to be fitted closely with the side plate of overpass, encounter bad weather, be easy to shake soundproof plate, reduces sound insulation Effect, there are certain Personal Risks.Simultaneously currently, existing overhead fixed street lamp, reduces the available space on highway, Through-current capacity is caused to reduce.
In conclusion problem of the existing technology is:
(1) fixed frame of existing overpass sound arrester makes changeless, cause cannot with the side plate of overpass into Row fits closely, and encounters bad weather, is easy to shake soundproof plate, reduces soundproof effect, there are certain Personal Risks.
(2) currently, existing overhead fixed street lamp, reduces the available space on highway, through-current capacity is caused to reduce.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of novel and multifunctional overpass sound arrester and sides Method.
The invention is realized in this way a kind of novel and multifunctional overpass sound arrester is provided with
Soundproof plate;
Soundproof plate front and soundproof plate lower rear are welded with fixed frame, have been connected through a screw thread on fixed frame and have tightened spiral shell Bolt;
Fixed mount setting has the first telescopic rod, the second telescopic rod, and telescopic rod outer cylinder is provided with through-hole, and telescopic rod interior bar is provided with recessed Slot, groove are welded with spring, spring and weld tabs, and convex block is plugged on inside through-hole;
Soundproof plate front fluting has sound-absorption hole, is filled with glass sponge between soundproof plate front and sound insulation back.
Further, soundproof plate front top is connected with support frame, has been bolted LED light on support frame;Every The soundboard back side is connected with solar panel, and solar panel connect by conducting wire with battery, battery pass through conducting wire and LED light connection.
Further, first telescopic rod, the second telescopic rod are welded with anti-skidding salient point.
Further, the soundproof plate upper end is connect by hinge with connection buckle, and connection buckle is provided with screw hole;Connection buckle passes through Bolt is connect with soundboard is lengthened;Soundproof plate is connect by connection sheet and bolt with connector sleeve.
Further, the soundproof plate has been bolted controller, has been bolted illumination in LED light fixed plate Intensity sensor, intensity of illumination sensor are connect by electric signal with controller, and controller passes through electric signal and electromagnetic relay Connection, battery are connect by conducting wire with electromagnetic relay, and electromagnetic relay is connect by conducting wire with LED light.
Advantages of the present invention and good effect are as follows:
The present invention by being welded with anti-skidding salient point in the first telescopic rod, the second telescopic rod, can increase fixed frame with it is overhead The friction of side plate improves the fastness of soundproof plate, prevents because of bad weather, makes soundproof plate and overpass there are gap, make every Soundboard shakes.
The present invention is fixed with LED light on the support frame, and street lamp is arranged on soundproof plate, the space on highway has been saved, And save the material of street lamp construction;By being provided with solar panel, solar energy can be converted into electric energy, be supplied for LED light Electricity saves electric energy for country.
The present invention is provided with the first telescopic rod, the second telescopic rod, can increase the compactness with bridge side plate, increases sound insulation The fixed fastness of plate, avoid traditionally due to be it is fixed, lead to that there are gaps with overpass, encounter bad weather, make Soundproof plate shakes, and reduces the effect of sound insulation, exists simultaneously certain danger.
The present invention, by hinge and connection buckle, can increase soundproof plate according to road conditions demand in soundproof plate upper end; By being provided with connector sleeve, fitting closely for block soundproof plate may be implemented, prevent from being not connected firmly.
Detailed description of the invention
Fig. 1 is novel and multifunctional overpass sound arrester structural schematic diagram provided in an embodiment of the present invention.
Fig. 2 is novel and multifunctional overpass sound arrester structure schematic diagram provided in an embodiment of the present invention.
Fig. 3 is novel and multifunctional overpass sound arrester partial schematic sectional view provided in an embodiment of the present invention.
Fig. 4 is fixed rack structure schematic diagram provided in an embodiment of the present invention.
Fig. 5 is anti-skidding salient point structural schematic diagram provided in an embodiment of the present invention.
Fig. 6 is Telescopic rod structure schematic diagram provided in an embodiment of the present invention.
Fig. 7 is lengthening septum arrangements schematic diagram provided in an embodiment of the present invention.
Fig. 8 is LED light control principle drawing provided in an embodiment of the present invention.
Fig. 9 is that controller provided in an embodiment of the present invention with intensity of illumination sensor connect circuit diagram.
In figure: 1, support frame;2, solar panels;3, sound insulation back;4, glass sponge;5, bolt is tightened;6, fixed frame; 7, sound-absorption hole;8, soundproof plate front;9, connector sleeve;10, LED light.11, soundproof plate is lengthened;12, the first telescopic rod;13, second stretches Contracting bar;14, anti-skidding salient point;15, through-hole;16, groove;17, convex block;18, connection buckle;19, controller;20, intensity of illumination senses Device.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing It is described in detail below.
Structure of the invention is explained in detail with reference to the accompanying drawing.
As shown in figs 1 to 6, novel and multifunctional overpass sound arrester provided in an embodiment of the present invention include: support frame 1, Solar panels 2, glass sponge 4, tighten bolt 5, fixed frame 6, sound-absorption hole 7, soundproof plate front 8, connector sleeve at sound insulation back 3 9, LED light 10, lengthen soundproof plate 11, be the first telescopic rod 12, the second telescopic rod 13, anti-skidding salient point 14, through-hole 15, groove 16, convex Block 17, connection buckle 18, controller 19, intensity of illumination sensor 20.
8 fluting of soundproof plate front has sound-absorption hole 7, is filled with glass sponge 4 between soundproof plate front 8 and sound insulation back 3.
It is welded with fixed frame 6 below positive 8 face of soundproof plate and sound insulation back 3, has been connected through a screw thread and has tightened on fixed frame 6 Bolt 5;Fixed frame 6 is provided with the first telescopic rod 12, the second telescopic rod 13, and telescopic rod outer cylinder is provided with through-hole 15, telescopic rod interior bar It is provided with groove 16, groove 16 is welded with spring, and spring and convex block 17 weld, and convex block 17 is plugged on inside through-hole 15.
First telescopic rod 12, the second telescopic rod 13 are welded with anti-skidding salient point 14.
Soundproof plate upper end is connect by hinge with connection buckle 18, and connection buckle 18 is provided with screw hole;Connection buckle 18 passes through bolt It is connect with soundproof plate 11 is lengthened.
8 top of soundproof plate front is connected with support frame 1, and LED light 10 has been bolted on support frame 1;
Sound insulation back 3 is connected with solar panel 2, and solar panel 2 is connect by conducting wire with battery, electric power storage Pond is connect by conducting wire with LED light 10.
Soundproof plate is connect by connection sheet and bolt with connector sleeve.
Soundproof plate has been bolted controller 19, has been bolted intensity of illumination biography in 10 fixed plate of LED light Sensor 20, intensity of illumination sensor 20 are connect by electric signal with controller 19, and controller 19 passes through electric signal and electromagnetism relay Device connection, battery are connect by conducting wire with electromagnetic relay, and electromagnetic relay is connect by conducting wire with LED light 10.
For the present invention in use, according to the thickness of the cement side plate on overpass both sides, the first telescopic rod 12, second of adjustment is flexible Bar 13, convex block 17 are plugged in through-hole 15, are fixed;It can increase by adjusting the first telescopic rod 12, the second telescopic rod 13 With the compactness of bridge side plate, after the completion of adjustment, bolt 5 will be tightened and tightened.Solar panel 2 can turn solar energy Turn to electric energy, be stored in battery, provide electric energy for LED light 10, glass sponge 4 stops noise, sound-absorption hole 7 to noise into Row absorbs.If connector sleeve 9 can connect another soundproof plate, if necessary to reinforce height, can be connected by connection buckle 18 Soundproof plate 11 is lengthened, the needs of height are met.The intensity that 20 detection light of intensity of illumination sensor is shone, when dim, intensity of illumination Electric signal is transmitted to controller 19 by sensor 20, and when intensity of illumination is lower than setting value, controller 19 controls electromagnetic relay It opens, control LED light is opened.
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form, Any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to In the range of technical solution of the present invention.

Claims (6)

1. a kind of novel and multifunctional overpass sound arrester, which is characterized in that the novel and multifunctional overpass sound arrester is set It is equipped with:
Soundproof plate;
Soundproof plate front and soundproof plate lower rear are welded with fixed frame, have been connected through a screw thread on fixed frame and have tightened bolt;
Fixed mount setting has the first telescopic rod, the second telescopic rod, and telescopic rod outer cylinder is provided with through-hole, and telescopic rod interior bar is provided with groove, Groove is welded with spring, spring and weld tabs, and convex block is plugged on inside through-hole;
Soundproof plate front fluting has sound-absorption hole, is filled with glass sponge between soundproof plate front and sound insulation back.
2. novel and multifunctional overpass sound arrester as described in claim 1, which is characterized in that soundproof plate front top card It is connected to support frame, has been bolted LED light on support frame;Sound insulation back is connected with solar panel, solar-electricity Pond plate is connect by conducting wire with battery, and battery is connect by conducting wire with LED light.
3. novel and multifunctional overpass sound arrester as described in claim 1, which is characterized in that first telescopic rod, second Telescopic rod is welded with anti-skidding salient point.
4. novel and multifunctional overpass sound arrester as described in claim 1, which is characterized in that the soundproof plate upper end passes through hinge Chain is connect with connection buckle, and connection buckle is provided with screw hole;Connection buckle is connect by bolt with soundboard is lengthened;Soundproof plate passes through connection sheet It is connect with bolt with connector sleeve.
5. novel and multifunctional overpass sound arrester as described in claim 1, which is characterized in that the soundproof plate is solid by bolt Surely there is controller, intensity of illumination sensor has been bolted in LED light fixed plate, intensity of illumination sensor passes through electric signal It being connect with controller, controller is connect by electric signal with electromagnetic relay, and battery is connect by conducting wire with electromagnetic relay, Electromagnetic relay is connect by conducting wire with LED light.
6. the novel and multifunctional overpass sound insulation side that a kind of perform claim requires the 1 novel and multifunctional overpass sound arrester Method, which is characterized in that thickness of the novel and multifunctional overpass method of sound insulation according to the cement side plate on overpass both sides, adjustment First telescopic rod, the second telescopic rod, convex block are plugged in through-hole, are fixed;By adjusting the first telescopic rod, the second telescopic rod Increase the compactness with bridge side plate, after the completion of adjustment, bolt will be tightened and tightened.Solar panel converts solar energy It for electric energy, is stored in battery, provides electric energy for LED light, glass sponge stops noise, and sound-absorption hole inhales noise It receives;If connector sleeve connects another soundproof plate, if necessary to reinforce height, is connected by connection buckle and lengthen soundproof plate, met The needs of height;The intensity that intensity of illumination sensor detection light is shone, when dim, electric signal is transmitted to by intensity of illumination sensor Controller, when intensity of illumination is lower than setting value, controller controls electromagnetic relay and opens, and control LED light is opened.
CN201910033720.0A 2019-01-15 2019-01-15 Multifunctional viaduct sound insulation device and method Active CN109629401B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910033720.0A CN109629401B (en) 2019-01-15 2019-01-15 Multifunctional viaduct sound insulation device and method

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Application Number Priority Date Filing Date Title
CN201910033720.0A CN109629401B (en) 2019-01-15 2019-01-15 Multifunctional viaduct sound insulation device and method

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CN109629401A true CN109629401A (en) 2019-04-16
CN109629401B CN109629401B (en) 2020-06-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112432099A (en) * 2020-10-15 2021-03-02 上海皇广光电科技有限公司 Anti-noise street lamp system based on 5G network for smart city construction

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Publication number Priority date Publication date Assignee Title
CN201610526U (en) * 2009-07-15 2010-10-20 盐城金阳交通设施有限公司 Novel glass reinforced plastic sound-absorbing noise barrier
CN104480870A (en) * 2015-01-13 2015-04-01 四川迅吉科技有限责任公司 High-speed rail sound barrier device and installation assembly thereof
CN104594769A (en) * 2013-10-30 2015-05-06 北京强度环境研究所 Device and method for mounting high noise resistance quartz window under high temperature environment
CN204644900U (en) * 2015-05-28 2015-09-16 孟凡梅 A kind of novel bridge section sound barrier
CN205295934U (en) * 2015-12-19 2016-06-08 杨志华 High safety barrier of bridge extensible
CN205421058U (en) * 2016-03-11 2016-08-03 黑龙江建筑职业技术学院 Novel bridge section sound barrier
US20170272028A1 (en) * 2016-03-17 2017-09-21 Gary L. Reinert Integrated soundwall and renewable electrical energy generation system and metal tube foundations therefore
CN108221726A (en) * 2018-02-27 2018-06-29 南京工业职业技术学院 A kind of road sound-proofing board
CN207829191U (en) * 2017-12-21 2018-09-07 天津山水水泥有限公司 A kind of novel sound insulating assembled plate

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201610526U (en) * 2009-07-15 2010-10-20 盐城金阳交通设施有限公司 Novel glass reinforced plastic sound-absorbing noise barrier
CN104594769A (en) * 2013-10-30 2015-05-06 北京强度环境研究所 Device and method for mounting high noise resistance quartz window under high temperature environment
CN104480870A (en) * 2015-01-13 2015-04-01 四川迅吉科技有限责任公司 High-speed rail sound barrier device and installation assembly thereof
CN204644900U (en) * 2015-05-28 2015-09-16 孟凡梅 A kind of novel bridge section sound barrier
CN205295934U (en) * 2015-12-19 2016-06-08 杨志华 High safety barrier of bridge extensible
CN205421058U (en) * 2016-03-11 2016-08-03 黑龙江建筑职业技术学院 Novel bridge section sound barrier
US20170272028A1 (en) * 2016-03-17 2017-09-21 Gary L. Reinert Integrated soundwall and renewable electrical energy generation system and metal tube foundations therefore
CN207829191U (en) * 2017-12-21 2018-09-07 天津山水水泥有限公司 A kind of novel sound insulating assembled plate
CN108221726A (en) * 2018-02-27 2018-06-29 南京工业职业技术学院 A kind of road sound-proofing board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112432099A (en) * 2020-10-15 2021-03-02 上海皇广光电科技有限公司 Anti-noise street lamp system based on 5G network for smart city construction

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