CN109281269A - A kind of cleaning system for semiclosed sound barrier - Google Patents
A kind of cleaning system for semiclosed sound barrier Download PDFInfo
- Publication number
- CN109281269A CN109281269A CN201710597890.2A CN201710597890A CN109281269A CN 109281269 A CN109281269 A CN 109281269A CN 201710597890 A CN201710597890 A CN 201710597890A CN 109281269 A CN109281269 A CN 109281269A
- Authority
- CN
- China
- Prior art keywords
- cleaning
- cleaning system
- semiclosed
- sound barrier
- sound absorption
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 109
- 230000004888 barrier function Effects 0.000 title claims abstract description 47
- 238000010521 absorption reaction Methods 0.000 claims abstract description 44
- 230000000712 assembly Effects 0.000 claims abstract description 36
- 238000000429 assembly Methods 0.000 claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/005—Mobile installations, particularly for upkeeping in situ road or railway furniture, for instance road barricades, traffic signs; Mobile installations particularly for upkeeping tunnel walls
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The present invention provides a kind of cleaning system for semiclosed sound barrier, it includes for cleaning the cleaning assemblies of the sound absorption wall, positioned at the cleaning assemblies both ends and the Power Component for the cleaning assemblies mobile slide track component 2 and affecting the cleaning assemblies mobile, the slide track component is at least two and non-cross, it is separately fixed on the steel column, the Power Component is two, is located at the two sides of the semiclosed sound barrier.It only needs a worker station that can operate on the ground, personal safety has been effectively ensured；This cleaning system cleaning speed is far superior to artificial cleaning speed, and can open at any time, will not delay traffic safety and component falls, have good usage experience and safety；This cleaning system structure adaptability is strong, has wide application prospect.
Description
Technical field
The present invention relates to a kind of cleaning systems for for semiclosed sound barrier.
Background technique
Existing semi-enclosed sound barrier is by fashioned iron and transparent panel (pc plate or acrylic board) or opaque sound barrier
The penetrating sound absorption wall collectively constituted has many advantages, such as that beautiful and generous, sound absorption performance is good, is usually used in railway, highway, bridge
Beam, municipal administration etc., since sound barrier is usually located at road both sides, the dust and rainwater dew collective effect that vehicle raises cause sound
Barrier is easy the defects of being contaminated by dust, is not easy to clean, and the time is long, and a large amount of dust, clast equivalance fall in sound barrier surface,
It cleans extremely difficult, influences the beautiful and visual field, it, cannot during needing to put into a large amount of manpower and material resources and cleaning if prerinse
Driving etc., therefore how to provide and a kind of can clean at any time, avoid high altitude operation, not influencing running time and the cleaning device of safety
As urgent problem to be solved.
Summary of the invention
Technical problem to be solved by the present invention lies in the deficiencies for overcoming the above-mentioned prior art, provide a kind of for semiclosed
The cleaning system of sound barrier.
According to a kind of main technical schemes that the cleaning system for semiclosed sound barrier uses provided by the invention are as follows: one
Kind is used for the cleaning system of sound barrier, and the semiclosed sound barrier includes steel column and is arranged between the adjacent steel column
Acoustic barrier unit board, the steel column is class inverted U-shaped, and the steel column and acoustic barrier unit board collectively constitute class and fall U
The sound absorption wall of shape structure, the cleaning system for semiclosed sound barrier include the cleaning for cleaning the sound absorption wall
Component positioned at the cleaning assemblies both ends and for the cleaning assemblies mobile slide track component and affects the cleaning assemblies mobile
Power Component, the slide track component are at least two and non-cross, are separately fixed on the steel column, the power
Component is two, is located at the two sides of the semiclosed sound barrier.
Can also have following attached technical characteristic: the slide track component 2 provided by the present invention for the Buffer Unit of fashioned iron
Extend along the sound absorption wall surface longitudinal, the cleaning assemblies is laterally extended along the sound absorption surface.
The slide track component includes track and the pulley assembly that is respectively placed in each track 21, and the track is fixed on
Longitudinally extend on the steel column and along the sound absorption wall table.
The cleaning assemblies includes cleaning means, the support rod for fixing cleaning means, the support rod both ends difference
The pulley assembly is connected, the support rod is laterally extended along the surface of the sound absorption wall.
The cleaning assemblies includes cleaning means, the frame for fixing cleaning means, and the frame is to be connected by support rod
Tetragonal structure made of connecing, four angles of the tetragonal structure respectively connect a pulley assembly, and the cleaning means is solid
It is scheduled on along the support rod that the surface of the sound absorption wall is laterally extended.The width of the frame along the longitudinal direction is 0.1m
~5m, width in transverse direction are 0.1m~20m.
The pulley assembly includes bearing and the bracket that is fixedly connected with the bearing.
The track is c-type profile, and the bracket includes crossbeam and the L-type angle steel being fixedly connected with the crossbeam, the cross
Beam both ends respectively connect an at least bearing, and the L-type angle steel stretches out outside the c-type profile.
Its further include apart from adjustment structure, it is described fixed on the bracket apart from adjustment structure, it is described along it is described inhale every
The both ends connection for the support rod that the surface of sound wall is laterally extended is described apart from adjustment structure.
It is described apart from adjustment structure be an annulus or cylindrical sleeve, the annulus or cylindrical sleeve are fixed on the branch
On frame, the both ends for the support rod that the surface along the sound absorption wall is laterally extended are threaded through the annulus or cylindrical sleeve
In.
The cleaning means may be selected to be the combination of one or more of brush, sponge, rag or glass scraper.
It further include the water system for sprinkling water to sound absorption wall surface.
The Power Component drives the sprinkler system, and the sprinkler system includes water tank, water pump and aqueduct.
Water sprayering hole is provided on the aqueduct.
It further includes a mobile device that the water supply device can be driven mobile.
The Power Component is the motor vehicle that can be walked, and the motor vehicle includes motor, controller, car body, wheel and biography
Dynamic structure, the cleaning assemblies are connect with the car body.
It further includes the track for motor vehicle walking, is arranged on the wheel with teeth, is provided on the track
Groove corresponding with the tooth.
It further includes one while connecting the drive mechanism of the cleaning assemblies and the Power Component, and the drive mechanism is
Class quadrangle, class triangle or class polygonized structure.
It is existing to have the beneficial effect that it can be used for using the cleaning system bring provided by the present invention for semiclosed sound barrier
The cleaning for the semiclosed sound barrier having, it is only necessary to which a worker station can operate on the ground, avoid Conventional cleaning methods institute
Using a large amount of cleaning means and tactics of human sea；This cleaning system cleaning speed is far superior to artificial cleaning speed, and cleans
Speed can select according to actual needs, by controlling the travel speed of Power Component, can be fast or slow；It is most important, this cleaning system
System can be opened at any time, even if can also implement cleaning operation in driving, will not delay traffic safety and cleaning personnel safety, have
Good usage experience and safety；This cleaning system structure adaptability is strong, and without additionally increasing accessory structure, structure is light
Just, wearing terrain is easily changed, and effectively reduces cost, is easy to make, and has wide application prospect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the first embodiment is assembled to upright sound barrier；
Fig. 2 is the structure structural schematic diagram that second of embodiment is assembled to upright sound barrier；
Fig. 3 is the portion A schematic enlarged-scale view in Fig. 1；
Fig. 4 is the portion B schematic enlarged-scale view in Fig. 1；
Fig. 5 is the structure structural schematic diagram that second of embodiment is assembled to arc sound barrier；
Fig. 6 is the portion A schematic enlarged-scale view in Fig. 5；
Fig. 7 is the portion B schematic enlarged-scale view in Fig. 5.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing.
As shown in Figures 1 to 7, the embodiment of the present invention provides a kind of cleaning system for semiclosed sound barrier, and described half
Close the acoustic barrier unit board 6 that sound barrier includes steel column 5 and is arranged between the adjacent steel column 5, the steel column 5
Sound absorption wall is collectively constituted with acoustic barrier unit board 6, the sound absorption wall is upright shape or arcuate structure, the cleaning system packet
Include cleaning assemblies 1 for cleaning the sound absorption wall and mobile positioned at 1 both ends of cleaning assemblies and for the cleaning assemblies 1
Slide track component 2, to make cleaning assemblies 1 walk along fixed-direction, the case where avoiding the occurrence of sideslip or fall, the slide track component 2
It at least two and non-cross, is separately fixed on the steel column 5, the modes such as screw, rivet or welding can be passed through
Fixed, the slide track component 2 extends along the sound absorption wall surface longitudinal, and the cleaning assemblies 1 is along sound absorption wall surface
Be laterally extended, the surface shape of shape adaptation sound absorption wall, longitudinal is the extending direction of semiclosed sound barrier, laterally for it is upper
It states longitudinally perpendicular or is bordering on vertical direction, the cleaning system is fixed on the back side or sound absorption face of the sound absorption wall.
As shown in Figure 1, Figure 2 and shown in Fig. 5, specifically, the slide track component 2 includes track 21 and is placed in the track 21
Pulley assembly, the track 21 are fixed on the steel column 5 and extend along the sound absorption wall surface longitudinal.
As described in Figure 1, as a kind of structure choice, the cleaning assemblies 1 includes cleaning means 12, for fixing scavenger
The support rod 11 of tool 12,11 both ends of support rod are separately connected the pulley assembly, and the support rod 11 is along the sound absorption
The surface of wall is laterally extended；As shown in Figure 2 and Figure 5, as second of structure choice, the cleaning assemblies 1 includes cleaning means
12, for fixing the frame of cleaning means 12, the frame is the tetragonal structure being formed by connecting by support rod 11, the four directions
Four angles of shape structure respectively connect a pulley assembly, and the cleaning means 12 is fixed on horizontal along the surface of the sound absorption wall
To on the support rod 11 of extension, the width of the frame along the longitudinal direction is 0.1m~5m, and width in transverse direction is
0.1m~20m, to avoid in moving process deformation that pulley assembly is caused to be stuck in track 21, can in the frame between be arranged and reinforce
Bar reinforces its rigidity.When sound absorption wall is plane, then frame is planar structure, and when sound absorption wall is curved surface, then frame is
With the curved-surface structure consistent along curved surface curvature of sound absorption wall.
The pulley assembly include bearing 22 with the bracket 23 that is fixedly connected with the bearing 22, the bracket 23 stretches out described
Outside track 21, specifically, the track 21 is c-type profile, and the bracket 23 includes crossbeam and the L-type being fixedly connected with the crossbeam
Angle steel, the crossbeam both ends respectively connect an at least bearing 22, and the L-type angle steel stretches out outside the c-type profile.
To evade design and installation error, further include apart from adjustment structure 24, it is described to be fixed on apart from adjustment structure 24
On the bracket 23, the both ends connection of the cleaning assemblies 1 is described apart from adjustment structure 24, specifically, along the sound absorption
The both ends connection for the support rod 11 that the surface of wall is laterally extended is described apart from adjustment structure 24.Specifically, this is apart from adjustment structure
24 be an annulus or cylindrical sleeve, and the annulus or cylindrical sleeve are fixed on the bracket 23, more specifically, annulus
Or cylindrical sleeve is fixed on L-type angle steel, fixed form may be selected to be welding, be spirally connected or rivet, it is described along it is described inhale every
The both ends for the support rod 11 that the surface of sound wall is laterally extended are threaded through in the annulus or cylindrical sleeve, support rod 11 by
It is mobile in annulus or cylindrical sleeve to adjust adjacent the distance between slide track component 2, avoid pulley assembly from being blocked by slide track component 2
Firmly, it influences to scrub efficiency.
The cleaning means 12 may be selected to be the combination of one or more of brush, sponge, rag or glass scraper.Specifically
Ground, cleaning means move when, can preferentially be nuzzled up sound absorption wall by wet sponge or wet rag, behind scraped sound absorption with glass scraper again
Wall, to reach cleaning and prevent the remaining purpose of water droplet.
It further include the water system for sprinkling water to sound absorption wall surface to add water convenient, which can be to
The watering of sound absorption wall surface makes sound absorption wall be easier to clean to moisten the dust or other attachments on sound absorption wall surface.For
Water system is consistent with the moving direction of cleaning assemblies, and preferably moves synchronously, to reach the clean purpose in watering.
As a kind of selection, the water system includes header tank and the aqueduct with the header tank connection, and the header tank is higher than institute
State cleaning system, one switch of aqueduct water inlet setting；It is selected as second, the water system includes water tank, water
Pump and aqueduct, water tank can be moved along the direction that semiclosed sound barrier longitudinally extends, specifically, can be transported by manual drive water tank
It is dynamic, it can also add a mobile device and drive water tank movement.To increase spray area, the utilization efficiency of water is improved, can be led described
Water sprayering hole is provided on water pipe, water sprayering hole is micropore, to spray misty or approximate misty spray.
For the degree of automation for increasing above-mentioned cleaning system, the also settable Power Component for affecting cleaning assemblies 1 mobile
3, Power Component 3 is the motor vehicle that can be walked, and the motor vehicle includes motor, controller, car body, wheel and drive mechanism, institute
Cleaning assemblies is stated to connect with the car body.
It can smoothly move ahead for motor vehicle, increase the frictional force or binding force between motor vehicle and bottom surface or track, prevent machine
Motor-car retreats or skids, and further includes the track for motor vehicle walking, be arranged on the wheel it is with teeth, on the track
It is provided with groove corresponding with the tooth.For the linking for realizing cleaning assemblies 1 and Power Component 3, further includes one while connecting institute
The drive mechanism of cleaning assemblies 1 and the Power Component 3 is stated, the drive mechanism is that class quadrangle, class triangle or class are polygon
The frame structure of shape, the frame structure should be unlikely to deform, to drive cleaning assemblies to travel forward.
Embodiment described above, only one kind of the present invention more preferably specific embodiment, those skilled in the art
The usual variations and alternatives that member carries out within the scope of technical solution of the present invention should be all included within the scope of the present invention.
Claims (15)
1. a kind of cleaning system for semiclosed sound barrier, the semiclosed sound barrier includes steel column (5) and is arranged in phase
Acoustic barrier unit board (6) between the adjacent steel column (5), the steel column (5) and acoustic barrier unit board (6) collectively constitute
Sound absorption wall, the sound absorption wall are upright shape or arcuate structure, which is characterized in that the cleaning system includes for cleaning
It states the cleaning assemblies (1) of sound absorption wall and is located at the cleaning assemblies (1) both ends and the slide rail group mobile for the cleaning assemblies (1)
Part (2), the slide track component (2) is at least two and non-cross, is separately fixed on the steel column (5), described
Slide track component (2) extends along the sound absorption wall surface longitudinal, and the cleaning assemblies (1) is laterally prolonged along sound absorption wall surface
It stretches, the cleaning system is fixed on the back side or sound absorption face of the sound absorption wall.
2. the cleaning system according to claim 1 for semiclosed sound barrier, which is characterized in that the slide track component
(2) pulley assembly for including track (21) and being placed in the track (21), the track (21) are fixed on the steel column (5)
Above and along the sound absorption wall surface longitudinal extend.
3. the cleaning system according to claim 2 for semiclosed sound barrier, which is characterized in that the cleaning assemblies
It (1) include cleaning means (12), the support rod (11) for fixing cleaning means (12), support rod (11) both ends connect respectively
The pulley assembly is connect, the support rod (11) is laterally extended along the surface of the sound absorption wall.
4. the cleaning system according to claim 2 for semiclosed sound barrier, which is characterized in that the cleaning assemblies
It (1) include cleaning means (12), the frame for fixing cleaning means (12), the frame is to be formed by connecting by support rod (11)
Tetragonal structure, four angles of the tetragonal structure respectively connect a pulley assembly, and the cleaning means (12) is fixed
On the support rod (11) that the surface along the sound absorption wall is laterally extended.
5. the cleaning system according to claim 2 for semiclosed sound barrier, which is characterized in that the pulley assembly packet
Bearing (22) and the bracket (23) for being fixedly connected with the bearing (22) are included, the bracket (23) stretches out the track (21) outside.
6. the cleaning system according to claim 5 for semiclosed sound barrier, which is characterized in that the track (21) is
C-type profile, the bracket stretch out outside the c-type profile.
7. the cleaning system according to claim 5 for semiclosed sound barrier, which is characterized in that the track (21)
On, the both ends connection of the cleaning assemblies (1) is described apart from adjustment structure (24).
8. the cleaning system according to claim 7 for semiclosed sound barrier, which is characterized in that the distance adjusts knot
Structure (24) is an annulus or cylindrical sleeve, and cleaning assemblies (1) both ends are threaded through in the annulus or cylindrical sleeve.
9. according to the cleaning system for being used for semiclosed sound barrier described in claim 3 or 4, which is characterized in that the cleaning means
(12) it may be selected to be the combination of one or more of brush, sponge, rag or glass scraper.
10. the cleaning system according to claim 1 for semiclosed sound barrier, which is characterized in that further include for
The water system of sound absorption wall surface watering.
11. the cleaning system according to claim 10 for semiclosed sound barrier, which is characterized in that the water system
Aqueduct including header tank and with the header tank connection, the header tank are higher than the cleaning system, and the aqueduct enters water
One switch of mouth setting.
12. the cleaning system according to claim 10 for semiclosed sound barrier, which is characterized in that the water system
Including water tank, water pump and aqueduct.
13. the cleaning system according to claim 10 for semiclosed sound barrier, which is characterized in that it further includes one can
The mobile device for driving the water system mobile.
14. the cleaning system according to claim 1 for semiclosed sound barrier, which is characterized in that the cleaning system
It further include the Power Component (3) that the cleaning assemblies (1) can be affected mobile.
15. the cleaning system according to claim 14 for semiclosed sound barrier, which is characterized in that the Power Component
For the motor vehicle that can be walked, the motor vehicle includes motor, controller, car body, wheel and drive mechanism, the cleaning assemblies with
The car body connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597890.2A CN109281269B (en) | 2017-07-21 | 2017-07-21 | Cleaning system for semi-closed sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597890.2A CN109281269B (en) | 2017-07-21 | 2017-07-21 | Cleaning system for semi-closed sound barrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109281269A true CN109281269A (en) | 2019-01-29 |
| CN109281269B CN109281269B (en) | 2023-12-29 |
Family
ID=65184994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710597890.2A Active CN109281269B (en) | 2017-07-21 | 2017-07-21 | Cleaning system for semi-closed sound barrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109281269B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219257A (en) * | 2019-07-15 | 2019-09-10 | 西藏中驰集团股份有限公司 | A kind of cleaning system for sound barrier |
| CN112746583A (en) * | 2019-10-30 | 2021-05-04 | 西藏中驰集团股份有限公司 | Integrated cleaning system for sound barrier |
| CN112742774A (en) * | 2019-10-30 | 2021-05-04 | 西藏中驰集团股份有限公司 | Steam cleaning system for sound barrier |
| CN112878217A (en) * | 2020-11-27 | 2021-06-01 | 代文兵 | Closed type track sound insulation barrier |
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| FR2319176A1 (en) * | 1975-07-25 | 1977-02-18 | Seal Baticlub | Sound insulating barrier for motorways - has vertical posts and horizontal rails defining frame for sound insulating elements |
| KR100934277B1 (en) * | 2009-05-22 | 2009-12-28 | 주식회사 세흥휴프텍 | Cleanning device for transparent noise-barrier wall |
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| CN203065978U (en) * | 2013-01-11 | 2013-07-17 | 广州地铁设计研究院有限公司 | Rail transit arc and short sound barrier |
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| CN106592476A (en) * | 2016-11-02 | 2017-04-26 | 长安大学 | Omnibearing washing mechanism for highway sound barrier |
| CN207331560U (en) * | 2017-07-21 | 2018-05-08 | 西藏中驰集团股份有限公司 | A kind of cleaning system for semiclosed sound barrier |
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2017
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| FR2319176A1 (en) * | 1975-07-25 | 1977-02-18 | Seal Baticlub | Sound insulating barrier for motorways - has vertical posts and horizontal rails defining frame for sound insulating elements |
| KR100934277B1 (en) * | 2009-05-22 | 2009-12-28 | 주식회사 세흥휴프텍 | Cleanning device for transparent noise-barrier wall |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219257A (en) * | 2019-07-15 | 2019-09-10 | 西藏中驰集团股份有限公司 | A kind of cleaning system for sound barrier |
| CN112746583A (en) * | 2019-10-30 | 2021-05-04 | 西藏中驰集团股份有限公司 | Integrated cleaning system for sound barrier |
| CN112742774A (en) * | 2019-10-30 | 2021-05-04 | 西藏中驰集团股份有限公司 | Steam cleaning system for sound barrier |
| CN112878217A (en) * | 2020-11-27 | 2021-06-01 | 代文兵 | Closed type track sound insulation barrier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109281269B (en) | 2023-12-29 |
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