CN111218995B - Sound insulation board with micro ventilation - Google Patents
Sound insulation board with micro ventilation Download PDFInfo
- Publication number
- CN111218995B CN111218995B CN202010145845.5A CN202010145845A CN111218995B CN 111218995 B CN111218995 B CN 111218995B CN 202010145845 A CN202010145845 A CN 202010145845A CN 111218995 B CN111218995 B CN 111218995B
- Authority
- CN
- China
- Prior art keywords
- plate
- silencing
- holes
- plate body
- clamping soft
- 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.)
- Expired - Fee Related
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 31
- 238000009413 insulation Methods 0.000 title abstract description 21
- 230000030279 gene silencing Effects 0.000 claims abstract description 56
- 239000000843 powder Substances 0.000 claims description 5
- 239000002023 wood Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000011398 Portland cement Substances 0.000 claims description 4
- 229920002522 Wood fibre Polymers 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 4
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 4
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000002025 wood fiber Substances 0.000 claims description 4
- 229920001285 xanthan gum Polymers 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000000230 xanthan gum Substances 0.000 claims description 3
- 229940082509 xanthan gum Drugs 0.000 claims description 3
- 235000010493 xanthan gum Nutrition 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 239000000428 dust Substances 0.000 abstract description 6
- 239000004566 building material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000009975 flexible effect Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention relates to the field of building materials, in particular to a sound insulation board with micro ventilation. The plate comprises a plate body, a plate block and a clamping soft plate clamped between the plate body and the plate block, wherein first gaps are formed between the plate body and the clamping soft plate and between the plate block and the clamping soft plate; a plurality of first silencing through holes are formed in the plate body at intervals, a plurality of second silencing through holes are formed in the plate body at intervals, and the first silencing through holes and the second silencing through holes are distributed in a one-to-one corresponding mode; a plurality of ventilation holes are arranged on the clamping soft board at intervals, and the ventilation holes, the first silencing through holes and the second silencing through holes are distributed in a staggered mode. The invention has sound insulation and good micro ventilation effect, and avoids the dust brought by strong wind.
Description
Technical Field
The invention relates to the field of building materials, in particular to a sound insulation board with micro ventilation.
Background
It is known that in construction, especially in field construction, workers are subjected to tasks such as living, dining halls, learning, and visiting in daily life, and the workers do not stop working outdoors, so that noise influence is great. Because the work shed is basically temporary, the work shed cannot achieve the good noise resistance function of cement or other permanent buildings, the existing work shed is mostly made of wood boards, composite boards or plywood, and the sound insulation effect of the boards is poor. Noise reduction by the baffle and reduction of interference with the acoustic resonance frequency are also possible, although baffles may be used. The known sound insulation boards are different from air sound and vibration sound, and the main sound insulation structure is realized by using blind holes with different apertures or reducing the density of objects, wherein the sound insulation boards are more common to be single light damping material sound insulation boards, foam material sound insulation boards or sound insulation boards with composite structures of high molecular damping materials so as to play the roles of decoupling and damping.
However, the above-mentioned soundproof panel has a certain soundproof effect in use, but lacks a micro ventilation effect. Such as building site's interim worker canopy, the interim dormitory of the staff of field construction and protection equipment do not receive the rainwater to invade and can ventilate etc. these buildings not only need have the syllable-dividing effect of preferred, still need possess the ventilation function and avoid the raise dust that the strong wind brought to get into.
Disclosure of Invention
The invention aims to provide a sound insulation board with micro ventilation and air exchange, which has sound insulation and good micro ventilation effect and avoids the dust brought by strong wind.
In order to solve the technical problems, the invention adopts the technical scheme that: a sound insulation board with micro ventilation comprises a board body, a board block and a clamping soft board clamped between the board body and the board block, wherein first gaps are formed between the board body and the clamping soft board and between the board block and the clamping soft board; a plurality of first silencing through holes are formed in the plate body at intervals, a plurality of second silencing through holes are formed in the plate body at intervals, and the first silencing through holes and the second silencing through holes are distributed in a one-to-one corresponding mode; a plurality of ventilation holes are arranged on the clamping soft board at intervals, and the ventilation holes, the first silencing through holes and the second silencing through holes are distributed in a staggered mode.
Preferably, a first annular bulge is arranged on the plate body, faces one side of the clamping soft plate and is positioned on the periphery of the first silencing through hole, a second annular bulge is arranged on the plate body, faces one side of the clamping soft plate and is positioned on the periphery of the second silencing through hole, and second gaps are formed between the first annular bulge and the clamping soft plate and between the second annular bulge and the clamping soft plate.
Preferably, the outer edge of the plate body is provided with a first edge bulge which is matched with the outer peripheral position of one side of the clamping soft plate in an abutting mode, and the outer edge of the plate body is provided with a second edge bulge which is matched with the outer peripheral position of the other side of the clamping soft plate in an abutting mode.
Preferably, a third edge protrusion for accommodating the plate body and clamping the soft plate is arranged on the plate block at the periphery of the second edge protrusion.
Preferably, a plurality of mounting holes are formed at intervals on the third protrusion.
Preferably, the plate body, the plate block and the clamping soft plate are rectangular, and the first silencing through holes, the second silencing through holes and the ventilation holes are distributed in an array form respectively.
Preferably, the first sound-deadening through-hole, the second sound-deadening through-hole, and the vent hole are circular holes.
Preferably, the first silencing through hole, the second silencing through hole and the vent hole are hexagonal holes.
Preferably, the plate body and the plate block are formed by pressing a mixture of polypropylene short fibers, wood fibers, portland cement, hydroxypropyl methyl cellulose, high polymer xanthan gum powder, wood sawdust, an air-entraining additive and a water reducing agent; the clamping soft board is made of weather-resistant plastic with the thickness of two millimeters to five millimeters.
Advantageous effects
In one aspect, the invention provides a baffle with micro ventilation, utilizing the flexibility and deadweight of the clamping flexible sheet. When no wind or breeze exists, the clamping soft board makes the first silencing through hole of the board body, the vent hole of the clamping soft board and the second silencing through hole of the board body form an indoor and outdoor air replacement channel by utilizing the shape of the clamping soft board. If a strong wind is encountered to clamp the soft board, the soft board can deform under the action of flexibility and block the silencing through hole, so that dust caused by the strong wind is prevented from entering the silencing through hole. On the other hand, at ordinary times, the inner surface of the plate body and the clamping soft plate and the interval between the clamping soft plate and the inner surface of the plate body form a sound attenuation cavity, and the sound reduction effect is obviously superior to that of the existing sound insulation mode.
Therefore, the invention has certain dustproof effect while having sound insulation effect and ventilation effect, and is beneficial to being used on construction sites or other temporary sheds
Drawings
FIG. 1 is a schematic perspective view of the assembled structure of the present invention;
FIG. 2 is a longitudinal section butt joint schematic view of the plate body, the clamping soft plate and the plate block in the invention;
fig. 3 is a schematic structural view of the plate body, the clamping soft plate and the plate in fig. 2 after butt joint;
FIG. 4 is a partially enlarged view of portion A of FIG. 3;
FIG. 5 is a schematic structural view of the side of the plate body facing the soft clamping plate according to the present invention;
fig. 6 is a schematic structural view of the other side of the plate body in fig. 4;
FIG. 7 is a schematic structural view of the side of the plate facing the soft clamping plate according to the present invention;
FIG. 8 is a schematic view of the other side of the plate of FIG. 7;
the labels in the figure are: 1. plate body, 2, centre gripping soft board, 3, plate, 4, mounting hole, 5, second noise elimination through-hole, 6, second annular arch, 7, second limit portion arch, 8, third limit portion arch, 9, ventilation hole, 10, first noise elimination through-hole, 11, first limit portion arch, 12, first annular arch, 13, second clearance, 14, first clearance.
Detailed Description
As shown in fig. 1, the sound insulation board with micro ventilation of the present invention comprises a board body 1, a board block 3, and a soft clamping board 2 sandwiched between the board body 1 and the board block 3. As shown in fig. 5-8, the plate body 1, the plate 3 and the soft clamping plate 2 are all rectangular. A plurality of first silencing through holes 10 are formed in the plate body 1 at intervals, a plurality of second silencing through holes 5 are formed in the plate body 3 at intervals, and a plurality of vent holes 9 are formed in the clamping soft plate 2 at intervals. The first silencing through holes 10, the second silencing through holes 5 and the vent holes 9 are uniformly distributed at intervals in an array form. The first silencing through hole 10, the second silencing through hole 5 and the vent hole 9 are all circular holes or hexagonal holes.
The plate body 1 and the plate 3 are formed by pressing a mixture of polypropylene short fibers, wood fibers, portland cement, hydroxypropyl methyl cellulose, high polymer xanthan gum powder, wood sawdust, air-entraining admixture and water reducing agent; the clamping soft board 2 is made of weather-resistant plastic with the thickness of two millimeters to five millimeters. Preferably, the proportion of one-zero percent of polypropylene short fiber, three-zero percent of wood fiber, one-zero percent of hydroxypropyl methyl cellulose, two percent of high polymer xanthan powder, thirty percent of wood saw powder, two-zero percent of air-entraining admixture and one-zero percent of water reducing agent is used, and the rest is portland cement; if the board is used in a region with high humidity, varnish can be coated on all exposed positions of the board body 1 and the board 3 for deep moisture-proof treatment.
The noise elimination function of the invention is realized by the following structure: the first silencing through holes 10 and the second silencing through holes 5 are consistent in number and are distributed in a one-to-one correspondence manner; the vent holes 9 and the first silencing through holes 10 and the second silencing through holes 5 are distributed in a staggered mode. First gaps 14 are respectively arranged between the plate body 1 and the clamping soft plate 2 and between the plate body 3 and the clamping soft plate 2. A first annular bulge 12 is arranged on the plate body 1, facing one side of the clamping soft plate 2 and positioned at the periphery of the first silencing through hole 10, a second annular bulge 6 is arranged on the plate body 3, facing one side of the clamping soft plate 2 and positioned at the periphery of the second silencing through hole 5, and second gaps 13 are respectively arranged between the first annular bulge 12 and the clamping soft plate 2 and between the second annular bulge 6 and the clamping soft plate 2. The inner surface of the plate body 1 and the clamping soft plate 2 as well as the first gap 14 and the second gap 13 between the clamping soft plate 2 and the inner surface of the plate body 3 form a sound attenuation cavity, and the sound reduction effect is obviously superior to that of the existing sound insulation mode.
In the case of no wind or breeze, air exchange can take place via the sound-damping chamber. Meanwhile, as the clamping soft board 2 has certain flexibility, if the clamping soft board 2 meets strong wind, the clamping soft board can deform under the impact action of the strong wind through the flexible action and seal the silencing cavity on the corresponding side, so that the entering of dust caused by the strong wind is avoided.
The plate body 1, the plate 3 and the soft clamping plate 2 are installed in a matched manner as shown in figures 1-4, a first edge bulge 11 for the interference fit of the outer periphery of one side of the soft clamping plate 2 is arranged at the outer edge of the plate body 1, and a second edge bulge 7 for the interference fit of the outer periphery of the other side of the soft clamping plate 2 is arranged at the outer edge of the plate 3. And a third edge bulge 8 for accommodating the plate body 1 and clamping the soft plate 2 is arranged on the plate 3 at the periphery of the second edge bulge 7. A plurality of mounting holes 4 are provided at intervals on the third protrusion 8.
The invention is specifically installed and used as follows:
glass glue is smeared along the position on the protruding 7 of second limit portion of plate 3, then places the four sides lower part of centre gripping soft board 2 in the protruding 7 of second limit portion, puts into in the protruding 8 of third limit portion and is connected with the last edge four sides of centre gripping soft board 2 after smearing glass glue under plate body 1 four sides, treats that glass glue obtains the acoustic celotex board that has little ventilation after dry.
Use and installation:
the wall body of the work shed is built by manufacturing a room frame by using the light steel keel, respectively penetrating the mounting holes 4 of the sound insulation board with micro ventilation by using eight strip screws, fixing the wall body on the light steel keel by using nuts, and so on. When a fan is used or not used in the shed in summer and breeze occurs outside or the fan blows, the clamping soft plate 2 is positioned between the plate body 1 and the plate body 3, indoor and outdoor air can be replaced by the indoor air through the first silencing through hole 10 of the plate body 1, the vent hole 9 of the clamping soft plate 2 and the second silencing through hole 5 of the plate body 3, and noise emitted by outdoor equipment and slight shock caused by the equipment are blocked and reduced by the sound insulation plate part with slight ventilation and air exchange; if strong wind exists, the clamping soft plate 2 can block the first silencing through hole 10 of the plate body 1 or the second silencing through hole 5 of the plate body 3 by means of wind power, and dust is prevented from entering.
Claims (8)
1. An acoustic celotex board with little ventilation, its characterized in that: the plate comprises a plate body (1), a plate block (3) and a clamping soft plate (2) clamped between the plate body (1) and the plate block (3), wherein first gaps (14) are formed between the plate body (1) and the clamping soft plate (2) and between the plate block (3) and the clamping soft plate (2); a plurality of first silencing through holes (10) are formed in the plate body (1) at intervals, a plurality of second silencing through holes (5) are formed in the plate body (3) at intervals, and the first silencing through holes (10) and the second silencing through holes (5) are distributed in a one-to-one correspondence manner; a plurality of vent holes (9) are arranged on the clamping soft plate (2) at intervals, and the vent holes (9) are distributed with the first silencing through holes (10) and the second silencing through holes (5) in a staggered manner;
a first annular bulge (12) is arranged on the plate body (1) towards one side of the clamping soft plate (2) and positioned at the periphery of the first silencing through hole (10), a second annular bulge (6) is arranged on the plate body (3) towards one side of the clamping soft plate (2) and positioned at the periphery of the second silencing through hole (5), and second gaps (13) are respectively arranged between the first annular bulge (12) and the clamping soft plate (2) and between the second annular bulge (6) and the clamping soft plate (2); the first gap (14) and the second gap (13) form a silencing cavity, the clamping soft board (2) has certain flexibility, and the clamping soft board (2) deforms under the action of external wind power and blocks the first silencing through hole (10) or the second silencing through hole (5).
2. An acoustic panel with micro ventilation according to claim 1, wherein: the outer edge position of the plate body (1) is provided with a first edge bulge (11) for the interference fit of the peripheral position of one side of the clamping soft plate (2), and the outer edge position of the plate body (3) is provided with a second edge bulge (7) for the interference fit of the peripheral position of the other side of the clamping soft plate (2).
3. An acoustic panel with micro ventilation according to claim 2, wherein: the plate (3) is provided with a third edge bulge (8) which is positioned at the periphery of the second edge bulge (7) and used for accommodating the plate body (1) and clamping the soft plate (2).
4. An acoustic panel with micro ventilation according to claim 3, wherein: a plurality of mounting holes (4) are arranged on the third edge bulge (8) at intervals.
5. An acoustic panel with micro ventilation according to claim 1, wherein: the plate body (1), the plate body (3) and the clamping soft plate (2) are all rectangular, and the first silencing through holes (10), the second silencing through holes (5) and the ventilation holes (9) are distributed in an array form respectively.
6. An acoustic panel with micro ventilation according to claim 1, wherein: the first silencing through hole (10), the second silencing through hole (5) and the vent hole (9) are circular holes.
7. An acoustic panel with micro ventilation according to claim 1, wherein: the first silencing through hole (10), the second silencing through hole (5) and the vent hole (9) are hexagonal holes.
8. An acoustic panel with micro ventilation according to claim 1, wherein: the plate body (1) and the plate block (3) are formed by pressing a mixture of polypropylene short fibers, wood fibers, portland cement, hydroxypropyl methyl cellulose, high-molecular xanthan gum powder, wood sawdust, an air-entraining additive and a water reducing agent; the clamping soft board (2) is made of weather-resistant plastic with the thickness of two millimeters to five millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010145845.5A CN111218995B (en) | 2020-03-05 | 2020-03-05 | Sound insulation board with micro ventilation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010145845.5A CN111218995B (en) | 2020-03-05 | 2020-03-05 | Sound insulation board with micro ventilation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111218995A CN111218995A (en) | 2020-06-02 |
| CN111218995B true CN111218995B (en) | 2021-04-30 |
Family
ID=70807996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010145845.5A Expired - Fee Related CN111218995B (en) | 2020-03-05 | 2020-03-05 | Sound insulation board with micro ventilation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111218995B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113218065B (en) * | 2021-03-26 | 2022-04-26 | 深圳通利机电工程有限公司 | Noise-reduction adjustable central air conditioner |
| CN113618858A (en) * | 2021-08-13 | 2021-11-09 | 杨洪福 | Sound absorption plate and processing method thereof |
| CN114086679A (en) * | 2021-11-19 | 2022-02-25 | 南京光声超构材料研究院有限公司 | Ventilation sound insulation unit structure and ventilation sound barrier |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2773955Y (en) * | 2005-03-30 | 2006-04-19 | 上海南华兰陵电气有限公司 | Labyrinth ventilating plate |
| KR20100019610A (en) * | 2008-08-11 | 2010-02-19 | 김운선 | Sound absorption plate using transparent material layer |
| CN102261138A (en) * | 2010-05-28 | 2011-11-30 | 广东环力复合材料股份有限公司 | Micro-perforated sound-absorbing aluminum hollow compound plate |
| CN103790312A (en) * | 2014-01-24 | 2014-05-14 | 昆山协多利金属有限公司 | Wallboard |
| CN204476172U (en) * | 2015-03-12 | 2015-07-15 | 泉州市三日门业有限公司 | A kind of lighttight door that ventilates |
| CN105491832A (en) * | 2015-12-31 | 2016-04-13 | 邦彦技术股份有限公司 | Waterproof and ventilating apparatus |
| CN206308855U (en) * | 2016-12-20 | 2017-07-07 | 浙江新中环建筑装饰工程有限公司 | Sound insulation curtain wall |
-
2020
- 2020-03-05 CN CN202010145845.5A patent/CN111218995B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2773955Y (en) * | 2005-03-30 | 2006-04-19 | 上海南华兰陵电气有限公司 | Labyrinth ventilating plate |
| KR20100019610A (en) * | 2008-08-11 | 2010-02-19 | 김운선 | Sound absorption plate using transparent material layer |
| CN102261138A (en) * | 2010-05-28 | 2011-11-30 | 广东环力复合材料股份有限公司 | Micro-perforated sound-absorbing aluminum hollow compound plate |
| CN103790312A (en) * | 2014-01-24 | 2014-05-14 | 昆山协多利金属有限公司 | Wallboard |
| CN204476172U (en) * | 2015-03-12 | 2015-07-15 | 泉州市三日门业有限公司 | A kind of lighttight door that ventilates |
| CN105491832A (en) * | 2015-12-31 | 2016-04-13 | 邦彦技术股份有限公司 | Waterproof and ventilating apparatus |
| CN206308855U (en) * | 2016-12-20 | 2017-07-07 | 浙江新中环建筑装饰工程有限公司 | Sound insulation curtain wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111218995A (en) | 2020-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111218995B (en) | Sound insulation board with micro ventilation | |
| CN211037326U (en) | Waterproof flame-retardant sound insulation board | |
| CN213143496U (en) | Wallboard in effectual light that gives sound insulation | |
| CN210887858U (en) | Environment-friendly sound insulation wallboard | |
| CN217871506U (en) | Interior decoration is with dampproofing board that gives sound insulation | |
| CN215630782U (en) | Micropore haydite acoustic baffle mounting structure | |
| CN220117638U (en) | Sound-absorbing and sound-insulating composite fiber cement board | |
| CN217464857U (en) | Heat insulating sound-proof felt for air conditioner | |
| CN220576765U (en) | Multi-layer composite flame-retardant sound insulation board structure | |
| CN211143453U (en) | Sound insulation suspended ceiling | |
| CN221073091U (en) | Sound insulation wall body for assembled building | |
| CN218233805U (en) | Combined splicing type sound insulation room | |
| CN220301569U (en) | Green building wallboard capable of carrying out internal and external ventilation | |
| CN217353858U (en) | Automatic noise reduction control panel under high noisy environment | |
| CN214034242U (en) | High sound insulation bridge cut-off partition plate | |
| CN211597249U (en) | Soundproof GRC curtain wall body structure | |
| CN217998613U (en) | Movable board house with shock resistance | |
| CN217175303U (en) | Sound-absorbing curtain wall aluminum veneer | |
| CN213087131U (en) | Building decoration is with concatenation formula light sound insulation structure | |
| CN211115616U (en) | Soundproof door with honeycomb ventilation and noise reduction structure | |
| CN212671065U (en) | Wallboard suitable for reducing entrance of house external noise | |
| CN219569412U (en) | High strength building decoration wallboard | |
| CN211499266U (en) | Building sound insulation building board | |
| CN219011782U (en) | Interior decoration sound insulation wall | |
| CN216076025U (en) | Green gypsum board building material capable of preventing extrusion deformation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |