CN112376456A - Sound-proof board mechanism suitable for municipal construction high corrosion resistance - Google Patents
Sound-proof board mechanism suitable for municipal construction high corrosion resistance Download PDFInfo
- Publication number
- CN112376456A CN112376456A CN202011291438.1A CN202011291438A CN112376456A CN 112376456 A CN112376456 A CN 112376456A CN 202011291438 A CN202011291438 A CN 202011291438A CN 112376456 A CN112376456 A CN 112376456A
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- China
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- sound
- municipal construction
- plate
- corrosion
- corrosion resistance
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0017—Plate-like elements
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0029—Arrangements 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
- E01F8/0064—Perforated plate or mesh, e.g. as wall facing
- E01F8/007—Perforated plate or mesh, e.g. as wall facing with damping material
Abstract
The invention provides a high corrosion resistance sound insulation plate mechanism suitable for municipal construction, relates to the technical field of sound insulation plates, and aims to solve the problems that the existing sound insulation plate adopts a honeycomb slot type structure to absorb sound in the using process, and a fence type sound insulation plate used in the municipal construction process is mostly of a single-side closed structure, namely, single-side sound is absorbed, the sound on the other side is emitted, the sound absorption effect is poor, and the purpose of isolating the noise generated by building manufacturing is difficult to achieve; the front end edge and the rear end edge between the upper anticorrosion end sealing plate and the lower anticorrosion end sealing plate are respectively and fixedly provided with an anticorrosion outer baffle plate; the left end and the right end of the front anti-corrosion outer baffle and the right end of the rear anti-corrosion outer baffle are vertically and slidably connected with U-shaped side sealing plates respectively. In the invention, the anticorrosive outer baffle is provided with the four-side truncated cone-shaped one-way sound absorption holes with the narrow outer ends and the wide inner ends at uniform intervals, so that sound is reflected, and no matter which side of the sound insulation board the sound transmitted from cannot be transmitted from the inside of the board.
Description
Technical Field
The invention relates to the technical field of sound insulation boards, in particular to a sound insulation board mechanism with high corrosion resistance suitable for municipal construction.
Background
The sound insulation wall is mainly used for sound insulation and noise reduction in traffic municipal facilities such as highways, overhead composite roads, urban light rails, subways and the like, and controlling the influence of traffic noise on nearby urban areas, and can also be used for sound insulation and noise reduction of factories and other noise sources.
The technical scheme of the sound insulation device of the prior sound insulation board is that the sound insulation device comprises a plurality of upright posts and a plurality of sound insulation boards arranged between two adjacent upright posts, wherein the upright posts are provided with placing grooves, the side ends of the sound insulation boards are inserted into the placing grooves, the middle positions of the upright posts are provided with insertion grooves communicated with the placing grooves and used for inserting a single sound insulation board, and the upright posts are provided with lifting mechanisms used for moving the sound insulation boards upwards along the placing grooves.
The existing sound insulation board mostly adopts a honeycomb slot type structure to absorb sound in the using process, and in the municipal construction process, the used fence type sound absorption board is mostly of a single-side closed structure, namely, single-side sound is absorbed, the sound of the other side is emitted, the sound absorption effect is poor, and the purpose of noise partition generated by building manufacturing is difficult to achieve.
Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a high corrosion resistance sound insulation plate mechanism suitable for municipal construction is provided, so as to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high-corrosion-resistance sound insulation plate mechanism suitable for municipal construction, which aims to solve the problems that the existing sound insulation plate adopts a honeycomb slot type structure to absorb sound in the using process, and in the municipal construction process, the used fence type sound insulation plate is mostly of a single-side closed structure, namely, single-side sound is absorbed, the sound on the other side is emitted, the sound absorption effect is poor, and the purpose of isolating the noise generated by building manufacturing is difficult to achieve.
The invention is suitable for the purpose and the effect of municipal construction of a high-corrosion-resistance sound-proof plate mechanism, and is achieved by the following specific technical means:
a high corrosion resistance sound-proof plate mechanism suitable for municipal construction comprises a corrosion-resistant end sealing plate; the front end edge and the rear end edge between the upper anticorrosion end sealing plate and the lower anticorrosion end sealing plate are respectively and fixedly provided with an anticorrosion outer baffle plate; the left end and the right end of the front anti-corrosion outer baffle and the right end of the rear anti-corrosion outer baffle are vertically and slidably connected with U-shaped side sealing plates respectively; two tangent silencing mechanisms are vertically arranged between the middle parts of the front and the rear anticorrosion outer baffles, and sound absorbing plates are fixedly arranged on the inner side walls of the two silencing mechanisms; and a damping vibration absorption mechanism with uniform left and right intervals is rotatably arranged between the upper and lower anti-corrosion end sealing plates between the front and rear sound absorption plates.
Furthermore, anticorrosive end shrouding includes docking post and dashpot, two edge department is perpendicular interval respectively about the relative lateral wall of anticorrosive end shrouding evenly fixed mounting has four docking posts, and the lateral wall middle part horizontal interval of docking post place one end evenly corresponds the damping vibration damping mechanism and has seted up the dashpot.
Furthermore, the side seal board includes card rail and butt joint post groove, two correspond the card rail that noise elimination mechanism vertically installed the T type form on the relative lateral wall of side seal board respectively, offer the butt joint post groove that suits in the position department corresponding to the post on the top plane of side seal board and the bottom plane respectively.
Furthermore, anticorrosive outer baffle includes one-way sound-absorbing hole, anticorrosive outer baffle is last to be seted up the narrow inner wide four sides truncated cone shape one-way sound-absorbing hole in outer end that the interval is even.
Furthermore, the noise elimination mechanism includes rail groove, sound-permeable hole, support frid and vortex reduction piece, set up the rail groove that slides the adapted with the card rail on the both ends lateral wall about the noise elimination mechanism, the even fixed mounting in interval has the support frid of U form on the relative lateral wall of anticorrosive outer baffle of noise elimination mechanism and corresponding one side, and the fixed mounting has the back word form vortex reduction piece of middle part evagination in proper order on the noise elimination mechanism in the support frid, set up two rows of vertical arrangement's sound-permeable hole on the noise elimination mechanism between the support frid.
Furthermore, the sound absorption plate comprises vertical sound scattering holes, the whole sound absorption plate is of a structure in which the sound absorption plates are connected in a shape like a Chinese character 'ji', the sound transmission holes correspond to the concave parts of the sound absorption plate, and the inclined surface of the sound absorption plate is provided with the vertical sound scattering holes with uniform vertical intervals.
Furthermore, the damping vibration elimination mechanism comprises a shaft rod, a spring and an energy absorption groove, the upper end and the lower end of the damping vibration elimination mechanism are respectively inserted into the buffer grooves on one corresponding side in a sliding mode through the shaft rod, the spring is sleeved on the shaft rod, and the outer wall of the damping vibration elimination mechanism is provided with the energy absorption groove in a vertical annular array.
Compared with the prior art, the invention has the following beneficial effects:
because anticorrosive outer baffle last offer the narrow inner wide four sides truncated cone shape one-way sound-absorbing hole in outer end of interval even for sound enters into one-way sound-absorbing hole from the outside, because the aperture grow, make sound will touch the inclined surface wall when the passback, thereby lead to the sound reflection, and then make no matter the sound that transmits from which side of acoustic celotex board can't spread from the inboard.
Because the side wall of the silencing mechanism opposite to the anti-corrosion outer baffle on the corresponding side is uniformly and fixedly provided with U-shaped supporting groove plates at intervals, the silencing mechanism in each supporting groove plate is fixedly provided with a Chinese character 'hui' shaped vortex reducing block with the middle part protruding outwards in sequence, and two rows of vertically arranged sound transmitting holes are formed in the silencing mechanism between the supporting groove plates, when sound enters the range of the silencing mechanism, one part of the sound passes through the sound transmitting holes and enters the inner side of the silencing mechanism, and the other part of the sound is transmitted to the vortex reducing block through the supporting groove plates, the sound can be reduced layer by layer due to the special structure of the vortex reducing block, and echo generated in the reducing process can be folded and absorbed by the vortex reducing block.
Because the upper end and the lower extreme of damping vibration elimination mechanism are respectively through the axostylus axostyle slip grafting in the dashpot that corresponds one side, and the cover is equipped with the spring on the axostylus axostyle, sets up the energy-absorbing groove of vertical annular array on the outer wall of damping vibration elimination mechanism, when sound entered into the within range of damping vibration elimination mechanism, the micro-vibration of production will make damping vibration elimination mechanism produce the fine motion to carry out the micro-vibration through axostylus axostyle and spring and weaken, finally realize the purpose of eliminating the noise.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a front right upper axial view of the present invention.
Fig. 2 is an exploded perspective view of the present invention.
Fig. 3 is a schematic diagram of an enlarged portion a of fig. 2 according to the present invention.
Fig. 4 is an axial view of the corrosion protection end seal plate and side seal plate of the present invention with portions removed.
Fig. 5 is a schematic top view of the corrosion protection end seal plate and side seal plate of the present invention with portions removed.
Fig. 6 is an axial view structural diagram of the anti-corrosion outer baffle and the sound absorption plate of the invention in a partially separated state.
Fig. 7 is a schematic diagram of the enlarged portion B of fig. 6 according to the present invention.
Fig. 8 is a partial axial view structural schematic diagram of the muffler mechanism of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. an anti-corrosion end sealing plate; 101. butting columns; 102. a buffer tank; 2. a side sealing plate; 201. clamping a rail; 202. butting column grooves; 3. an anticorrosive outer baffle; 301. a one-way sound absorbing hole; 4. a noise elimination mechanism; 401. a rail groove; 402. an acoustically transparent aperture; 403. supporting the slot plate; 404. a vortex reduction block; 5. a sound absorbing panel; 501. a sound-dispersing vertical hole; 6. a damping vibration-eliminating mechanism; 601. a shaft lever; 602. a spring; 603. an energy absorption groove.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 8:
the invention provides a high-corrosion-resistance sound-proof plate mechanism suitable for municipal construction, which comprises an anti-corrosion end sealing plate 1; an anti-corrosion outer baffle 3 is respectively and fixedly arranged at the edge of the front end and the edge of the rear end between the upper anti-corrosion end sealing plate 1 and the lower anti-corrosion end sealing plate 1; the left end and the right end of the front anti-corrosion outer baffle 3 and the right end of the rear anti-corrosion outer baffle 3 are vertically and slidably clamped with U-shaped side seal plates 2 respectively; the side sealing plates 2 comprise clamping rails 201 and butt joint column grooves 202, the opposite side walls of the two side sealing plates 2 are respectively and vertically provided with T-shaped clamping rails 201 corresponding to the noise elimination mechanisms 4, the top planes and the bottom planes of the side sealing plates 2 are respectively provided with corresponding butt joint column grooves 202 corresponding to the positions corresponding to the connecting columns 101, and the side sealing plates 2 can be vertically clamped on the outer sides of the noise elimination mechanisms 4 in a sliding manner through the clamping rails 201 and can be vertically spliced with the anticorrosive end sealing plates 1 through the butt joint column grooves 202; two tangential silencing mechanisms 4 are vertically arranged between the middle parts of the front and the rear anticorrosion outer baffles 3, and sound absorbing plates 5 are fixedly arranged on the inner side walls of the two silencing mechanisms 4; a damping vibration absorption mechanism 6 with uniform left and right intervals is rotatably arranged between the upper and lower anti-corrosion end seal plates 1 between the front and rear sound absorption plates 5.
Wherein, anticorrosive end shrouding 1 includes docking post 101 and dashpot 102, edge department is perpendicular interval respectively about the relative lateral wall of two anticorrosive end shroudings 1 and evenly fixed mounting has four docking posts 101, and accessible docking post 101 makes anticorrosive end shrouding 1 be connected with side shrouding 2 is perpendicular, and the lateral wall middle part horizontal interval of docking post 101 place one end evenly corresponds damping vibration elimination mechanism 6 and has seted up dashpot 102, and dashpot 102 then can provide the space of activity of fine motion from top to bottom for damping vibration elimination mechanism 6.
Wherein, anticorrosive outer baffle 3 includes one-way sound-absorbing hole 301, anticorrosive outer baffle 3 last set up the narrow inner wide four sides frustum one-way sound-absorbing hole 301 in outer end that the interval is even for sound enters into one-way sound-absorbing hole 301 from the outside, because the aperture grow, make sound when the passback will touch the inclined plane wall, thereby lead to the sound reflection, and then make no matter the sound that transmits from which side of acoustic celotex board can't spread from the inboard.
Wherein, the silencing mechanism 4 includes the rail slot 401, the sound-penetrating hole 402, support the grooved plate 403 and whirlpool and cut down the block 404, equip with the rail slot 401 that is slipped and adapted with the card rail 201 on the sidewall of both ends of the silencing mechanism 4, silencing mechanism 4 and correspondent to side anticorrosion exterior baffle 3 relative sidewall interval install U-shaped support grooved plate 403 fixedly evenly, and support fixedly install the middle part on the silencing mechanism 4 in the grooved plate 403 and turn round the letter-shaped whirlpool and cut down the block 404 convexly sequentially, support and equip with two rows of sound-penetrating holes 402 arranged vertically on the silencing mechanism 4 between grooved plates 403, when the sound enters the silencing mechanism 4 range, a part passes the sound-penetrating hole 402 and enters the inside of the silencing mechanism 4, and a part transmits the sound to the whirlpool and cuts down the block 404 through supporting the grooved plate 403, and because of the special structure of the whirlpool and cuts down the block 404, can make the sound cut down layer by layer, and echoes generated during curtailment can be folded and absorbed by the vortex reduction block 404.
The sound absorption plate 5 comprises sound scattering vertical holes 501, the whole sound absorption plate 5 is of a structure in which the shapes of 'several' are connected, the sound transmission holes 402 correspond to the concave parts of the sound absorption plate 5, the sound scattering vertical holes 501 with uniform vertical intervals are formed in the inclined surface of the sound absorption plate 5, sound penetrating through the sound transmission holes 402 is blocked by the sound absorption plate 5 with a straight surface, the sound can only penetrate through the sound scattering vertical holes 501 at the left side and the right side, the sound is reduced in the process, the sound absorption plate 5 can play a role in supporting the inner space, and a buffer space is created for sound absorption conveniently.
Wherein, damping vibration elimination mechanism 6 includes axostylus axostyle 601, spring 602 and energy-absorbing groove 603, damping vibration elimination mechanism 6's upper end and lower extreme are respectively through axostylus axostyle 601 slip grafting in the buffer slot 102 of corresponding one side, and the cover is equipped with spring 602 on the axostylus axostyle 601, set up the energy-absorbing groove 603 of vertical annular array on damping vibration elimination mechanism 6's the outer wall, when sound entered into damping vibration elimination mechanism 6's within range, the microvibration that produces will make damping vibration elimination mechanism 6 produce the fine motion, thereby carry out the microvibration through axostylus axostyle 601 and spring 602 and weaken, finally realize the.
The specific use mode and function of the embodiment are as follows:
in the using process, when sound enters the one-way sound absorption hole 301 from the outside, the hole diameter is enlarged, the sound touches the inclined surface wall when passing back, so that sound reflection is caused, further, no matter which side of the sound insulation board is transmitted from the inside of the board, when the sound enters the range of the noise elimination mechanism 4, a part of the sound passes through the sound transmission hole 402 and enters the inside of the noise elimination mechanism 4, a part of the sound passes through the support groove plate 403 and transmits the sound to the vortex reduction block 404, due to the special structure of the vortex reduction block 404, the sound can be reduced layer by layer, echo generated in the reducing process can be folded and absorbed by the vortex reduction block 404, the inclined surface of the sound absorption board 5 is provided with sound dispersion vertical holes 501 with uniform vertical intervals, the sound passing through the sound transmission hole 402 is blocked by the straight sound absorption board 5, and the sound can only pass through the sound dispersion vertical holes 501 at the left and right sides, in the process, the sound is already reduced, the sound absorption plate 5 can play a role of supporting an inner space, so that a buffer space is created for sound absorption, and when the sound enters the range of the damping and vibration elimination mechanism 6, the generated micro vibration can enable the damping and vibration elimination mechanism 6 to generate micro vibration, so that the micro vibration is weakened through the shaft rod 601 and the spring 602, and finally the purpose of sound elimination is achieved.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The utility model provides a soundproof plate mechanism suitable for municipal construction high corrosion resistance, its characterized in that: comprises an anti-corrosion end sealing plate (1); an anti-corrosion outer baffle (3) is respectively and fixedly arranged at the edge of the front end and the edge of the rear end between the upper anti-corrosion end sealing plate (1) and the lower anti-corrosion end sealing plate (1) vertically; the left end and the right end of the front anti-corrosion outer baffle (3) and the right end of the rear anti-corrosion outer baffle (3) are vertically clamped with a U-shaped side sealing plate (2) in a sliding manner; two tangential silencing mechanisms (4) are vertically arranged between the middle parts of the front and the rear anticorrosion outer baffles (3), and sound absorbing plates (5) are fixedly arranged on the inner side walls of the two silencing mechanisms (4); a damping vibration absorption mechanism (6) with uniform left and right intervals is rotatably arranged between the upper and lower anti-corrosion end sealing plates (1) between the front and rear sound absorption plates (5); the noise elimination mechanism (4) comprises a rail groove (401), sound transmission holes (402) and supporting groove plates (403), the rail groove (401) matched with the clamping rail (201) in a sliding mode is formed in the side walls of the left end and the right end of the noise elimination mechanism (4), the supporting groove plates (403) in a U shape are uniformly and fixedly mounted on the side walls, opposite to the anti-corrosion outer baffle (3) on one side, of the noise elimination mechanism (4), and two rows of vertically arranged sound transmission holes (402) are formed in the noise elimination mechanism (4) between the supporting groove plates (403).
2. A high corrosion resistance baffle mechanism suitable for municipal construction as claimed in claim 1 wherein: anticorrosive end shrouding (1) is including butt joint post (101) and buffer slot (102), two edge department is perpendicular interval respectively about the relative lateral wall of anticorrosive end shrouding (1) even fixed mounting have four butt joint posts (101), and buffer slot (102) have been seted up to the lateral wall middle part horizontal interval that butt joint post (101) place one end evenly corresponds damping vibration attenuation mechanism (6).
3. A high corrosion resistance baffle mechanism suitable for municipal construction as claimed in claim 1 wherein: side seal board (2) are including card rail (201) and butt joint post groove (202), two correspond respectively on the relative lateral wall of side seal board (2) noise elimination mechanism (4) vertical card rail (201) of installing the T type form, correspond respectively on the top plane of side seal board (2) and the bottom plane and have seted up corresponding butt joint post groove (202) in the position department of answering post (101).
4. A high corrosion resistance baffle mechanism suitable for municipal construction as claimed in claim 1 wherein: anticorrosive outer baffle (3) are including one-way sound-absorbing hole (301), anticorrosive outer baffle (3) are last to be seted up the narrow inner wide four sides truncated cone shape one-way sound-absorbing hole (301) in outer end that the interval is even.
5. A high corrosion resistance baffle mechanism suitable for municipal construction as claimed in claim 1 wherein: the silencing mechanism (4) further comprises a vortex reduction block (404), and the silencing mechanism (4) in the support groove plate (403) is fixedly provided with a reverse-letter-shaped vortex reduction block (404) with the middle part protruding outwards in sequence.
6. A high corrosion resistance baffle mechanism suitable for municipal construction as claimed in claim 1 wherein: the sound absorption plate (5) comprises sound scattering vertical holes (501), the whole sound absorption plate (5) is of a structure in a 'n' -shaped connection mode, the sound transmission holes (402) correspond to the concave parts of the sound absorption plate (5), and the sound scattering vertical holes (501) with uniform vertical intervals are formed in the inclined surface of the sound absorption plate (5).
7. A high corrosion resistance baffle mechanism suitable for municipal construction as claimed in claim 1 wherein: damping vibration elimination mechanism (6) include axostylus axostyle (601), spring (602) and energy-absorbing groove (603), the upper end and the lower extreme of damping vibration elimination mechanism (6) are respectively through axostylus axostyle (601) slip grafting in buffer slot (102) of corresponding one side, and the cover is equipped with spring (602) on axostylus axostyle (601), offers energy-absorbing groove (603) of vertical annular array on the outer wall of damping vibration elimination mechanism (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011291438.1A CN112376456B (en) | 2020-11-18 | 2020-11-18 | Sound-proof plate mechanism suitable for municipal construction high corrosion resistance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011291438.1A CN112376456B (en) | 2020-11-18 | 2020-11-18 | Sound-proof plate mechanism suitable for municipal construction high corrosion resistance |
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| CN112376456A true CN112376456A (en) | 2021-02-19 |
| CN112376456B CN112376456B (en) | 2022-06-28 |
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| CN209855632U (en) * | 2019-03-19 | 2019-12-27 | 深圳市彩盛生态环境建设有限公司 | Noise prevention and control equipment for environmental improvement |
| CN211114181U (en) * | 2019-12-30 | 2020-07-28 | 景泰县诺克保温建材有限公司 | Rock wool acoustic baffle that gives sound insulation is effectual |
| CN111877953A (en) * | 2020-07-24 | 2020-11-03 | 杭州泰央实业有限公司 | Stainless steel door and window with sound insulation and noise reduction functions |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20170077487A (en) * | 2015-12-28 | 2017-07-06 | 배우수 | Soundproof panel for the sound proofing wall of road |
| CN106638347A (en) * | 2017-03-04 | 2017-05-10 | 河南东海复合材料有限公司 | Glass steel noise barrier with function of reducing noise diffraction |
| CN207419292U (en) * | 2017-10-31 | 2018-05-29 | 乔从伟 | Road and bridge denoising device |
| CN108729367A (en) * | 2018-04-26 | 2018-11-02 | 华东交通大学 | A kind of compound noise barrier structure based on phonon crystal |
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| CN112376456B (en) | 2022-06-28 |
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Effective date of registration: 20220609 Address after: 150000 No. 21, Xinjiang East Road, haping road concentration area, Harbin Economic and Technological Development Zone, Harbin City, Heilongjiang Province Applicant after: HARBIN CHENGLIN TECHNOLOGY Co.,Ltd. Address before: Shanghai Jinshan Jinzhi municipal drainage pipeline installation engineering Co., Ltd., 176 Nanwei Road, Zhujing Town, Jinshan District, Shanghai Applicant before: Pan Guoqiang |
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