CN107023133A - One kind perforation honeycomb sound-absorbing integrated board - Google Patents

One kind perforation honeycomb sound-absorbing integrated board Download PDF

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Publication number
CN107023133A
CN107023133A CN201710281237.5A CN201710281237A CN107023133A CN 107023133 A CN107023133 A CN 107023133A CN 201710281237 A CN201710281237 A CN 201710281237A CN 107023133 A CN107023133 A CN 107023133A
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CN
China
Prior art keywords
plate
perforation
block
fixing
movable block
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Application number
CN201710281237.5A
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Chinese (zh)
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CN107023133B (en
Inventor
许张超
Original Assignee
安徽辰航铝业有限公司
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Priority to CN201710281237.5A priority Critical patent/CN107023133B/en
Publication of CN107023133A publication Critical patent/CN107023133A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/07Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0875Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/041Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise

Abstract

The invention discloses one kind perforation honeycomb sound-absorbing integrated board, including plate body, plate body includes perforated panel and perforation plate, the overlapped occlusion in the two sides of perforated panel and perforation plate, perforation is provided with front, acoustical cotton is filled with perforated panel, honeycomb core is provided with the middle of perforated panel and perforation plate, the surface of acoustical cotton and honeycomb core is coated with compound adhesive, side by side provided with two hinges below plate body, plate body, which is connected through the hinge, fixing device, fixing device includes two fixing insertions and a fixed frame, fixing insertion is connected to hinge, fixed frame is embedding to be embedded in wall when mounted.The present invention is added built-in cellular core, whole ceiling board is had good sound-absorbing effect, can effectively be prevented echo using perforated panel and the structure of perforation plate;Using new mounting connection structure, making the installation process of plate body becomes simple, need to only gently press, so that it may completes to install and disassemble, is easy to the later stage to change.

Description

One kind perforation honeycomb sound-absorbing integrated board
Technical field
The present invention relates to the ceiling board field of room furred ceiling, and in particular to one kind perforation honeycomb sound-absorbing integrated board.
Background technology
Modern society's high speed development, all kinds building, which is such as emerged rapidly in large numbersBamboo shoots after a spring rain, rises sheer from level ground, the decorative panel for building surface Demand constantly strengthens, particularly the sheet material of room furred ceiling.Decorative panel for building is laying or is painted on building surface decoration With the material for the effect of beautifying the environment, it integrates material, technique, shape-designing, the material of aesthetics, is building decoration engineering Important substance basis.Current decoration panel not only plays decoration function, has higher and higher requirement to insulation, resistance to compression, noise reduction etc..
Perforated plate have associative perception it is strong, it is specious the characteristics of, have wider sound sucting band, particularly absorb sound perforated plate with Big cavity between ceiling is more satisfactory to the assimilation effect of low frequency.Its sound absorbing mechanism is that material internal has a large amount of tiny skies Gap, sound wave can go deep into material internal along these spaces, and occur rubbing action with material is converted into heat energy by acoustic energy.
But the structure of perforation ceiling board is relatively simple in the market, erasure effect is also very limited, and this also have impact on it It is used as the penetration and promotion of building materials commercially.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of perforation honeycomb sound-absorbing integrated board, and the integrated board has simultaneously There are perforation and honeycomb, sound-absorbing effect is greatly improved, and improvement has been made on its mounting structure, obtain installation process To simplification, and the later stage can efficiently be changed.
The technical problems to be solved by the invention are realized using following technical scheme:
One kind perforation honeycomb sound-absorbing integrated board, including plate body, the plate body include perforated panel all for three face structures and Perforation, the perforation are provided with the overlapped occlusion in two sides of perforation plate, the perforated panel and perforation plate, front It is filled with panel in the middle of acoustical cotton, the perforated panel and perforation plate and is provided with honeycomb core, the acoustical cotton and honeycomb core Surface is coated with compound adhesive, and the acoustical cotton is distinguished by compound adhesive and perforated panel adhesion, the honeycomb core by compound adhesive With perforated panel and perforation plate adhesion, the plate body lower section is side by side provided with two hinges, and plate body, which is connected through the hinge, fixation Device, the fixing device includes two fixing insertions and a fixed frame, and the fixing insertion is connected to hinge, and fixed slotting Plate can around hinge swing, the fixed frame is embedding to be embedded in wall when mounted.
Further improvement is that, the penetration hole diameter in the perforated panel is less than the penetration hole diameter on the perforation plate.
Further improvement is that, Flexible Reset mechanism is provided with the hinge, the fixing insertion is erected in original state It is straight downwards, and fixing insertion can inside side oscillation under external force, when external force is removed, the fixing insertion can recover automatically To original state.
Further improvement is that, the fixing insertion includes the first plate body, hollow tube and the second plate body successively from top to bottom, First plate body is fixedly connected with hollow tube, and spring A is longitudinally provided with the hollow tube, and second plate body passes through spring A It is movably connected in the lower end of hollow tube.
Further improvement is that, the junction of second plate body and spring A is provided with a hollow-core construction, in hollow-core construction Spring B is transversely provided with, the termination of the spring B is connected with bayonet lock, and the hollow tube side is provided with the through hole matched with bayonet lock.
Further improvement is that, first plate body is provided with the first block face and the first inclined-plane, first block face and the The lateral surface of one plate body is mutually perpendicular to, and first inclined-plane is connected with the first block face and forms certain angle, second plate body The second block face and the second inclined-plane are provided with, second block face is perpendicular to the medial surface of second plate body, second inclined-plane It is connected with the second block face and forms certain angle.
Further improvement is that, the angle of the first inclined-plane and the first block face formation is 130 ° to 140 °, described second The angle that inclined-plane and the second block face are formed is 50 ° to 60 °.
Further improvement is that, the fixed frame includes being equipped with cunning on outer frame body, two vertical sides of the outer frame body Road, and movable block is connected with by slideway, the slideway side is additionally provided with limitation card, and the limitation card can make movable block exist When being slided on slideway power is hindered by the friction fixed.
Further improvement is that, the vertical length of the movable block is exactly equal between first inclined-plane and the second block face Beeline.
Further improvement is that, when mounted, fixing insertion is inserted in fixed frame from top to bottom for the plate body, and
When second inclined-plane and movable block are contacted, the fixing insertion starts inside side oscillation, bullet described in this process Spring A is not compressed, and the movable block is not slided;
When second plate body is inserted into below movable block, the second block face is contacted with movable block bottom surface, complete pair of panel The installation of body is fixed;
When the fixing insertion is continued into, first inclined-plane is contacted with movable block, the fixing insertion continue to Interior side oscillation, spring A is not compressed still described in this process, and the movable block is not slided, until the upper end of the first block face and movable block After the contact of face, now the second plate body lower end is contacted with outer frame body bottom surface just, and the movable block is opened in the lower pressure of the first block face Beginning moves down, and the spring A starts compression, and the second plate body starts toward hollow in-pipe;
When the movable block is snapped down to slideway lowermost end, the bayonet lock is moved to through hole and in the bullet of spring B just Ejected under power, form the locking to the second plate body, now the bottom surface of the movable block will not be kept out the formation of the second block face, Gu Determining plate can directly extract out.
The beneficial effects of the invention are as follows:
1) using perforated panel and the structure of perforation plate, built-in cellular core is added, whole ceiling board is had well Sound-absorbing effect, can effectively prevent echo;
2) new mounting connection structure is used, making the installation process of plate body becomes simple, need to only gently pressed, so that it may complete Into installing and disassembling, it is easy to the later stage to change.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention;
Fig. 2 is the schematic diagram after plate body each several part is split;
Fig. 3 is the structural representation of fixing insertion;
Fig. 4 is the enlarged drawing of part B in Fig. 3;
Fig. 5 is the state diagram when fixing insertion is not inserted into fixed frame;
The state diagram of fixing insertion and fixed frame when Fig. 6 installs for plate body;
Fig. 7 is state diagram when the second plate body is contacted with outer frame body bottom surface;
Fig. 8 is state diagram when movable block slips down to slideway bottom;
State diagram when Fig. 9 is extraction fixing insertion;
Wherein, 1- plate bodys, 11- perforated panels, 12- perforation plates, 13- perforation, 14- acoustical cottons, 15- honeycomb cores, 16- is multiple Rubber alloy, 17- hinges, 2- fixing insertions, the plate bodys of 21- first, the block faces of 211- first, the inclined-planes of 212- first, 22- hollow tubes, 221- Spring A, 222- through hole, the plate bodys of 23- second, 231- spring Bs, 232- bayonet locks, the block faces of 233- second, the inclined-planes of 234- second, 3- is solid Determine frame, 31- outer frame bodies, 311- slideways, 312- limitation cards, 32- movable blocks.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below Conjunction is specifically illustrating, and the present invention is expanded on further.
With reference to shown in Fig. 1 and Fig. 2, one kind perforation honeycomb sound-absorbing integrated board, including plate body 1, plate body 1 for three faces including all tying On the perforated panel 11 and perforation plate 12 of structure, the overlapped occlusion in the two sides of perforated panel 11 and perforation plate 12, front It is provided with perforation 13, perforated panel 11 and is filled with acoustical cotton 14, honeycomb core is provided with the middle of perforated panel 11 and perforation plate 12 15, the surface of acoustical cotton 14 and honeycomb core 15 is coated with compound adhesive 16, and acoustical cotton 14 is glued by compound adhesive 16 and perforated panel 11 Even, honeycomb core 15 by compound adhesive 16 respectively with perforated panel 11 and the adhesion of perforation plate 12, the lower section of plate body 1 is provided with two side by side Hinge 17, plate body 1 is connected with fixing device by hinge 17, and fixing device includes two fixing insertions 2 and a fixed frame 3, Fixing insertion 2 is connected to hinge 17, and fixing insertion 2 can around hinge 17 swing, the fixed frame 3 is embedding to be embedded at wall when mounted In vivo.
As preferred case, the perforation 13 that the diameter of perforation 13 in perforated panel 11 is less than on the perforation plate 12 is straight Footpath.So design can preferably play sound-absorbing effect (sound wave from aperture entrance after through acoustical cotton and honeycomb core, repeatedly friction, turn Chemical conversion heat energy is absorbed, and the sound wave after weakening is distributed through macropore, can reduce the secondary echo hit and produced), and whole ceiling board Look in appearance more attractive in appearance.
Provided with Flexible Reset mechanism (not shown in prior art diagram) in hinge 16, fixing insertion 1 is in original state Straight down, and fixing insertion 2 can inside side oscillation under external force, when external force is removed, fixing insertion 2 can recover automatically To original state.
As shown in figure 3, fixing insertion 2 includes the first plate body 21, the plate body 23 of hollow tube 22 and second successively from top to bottom, the One plate body 21 is fixedly connected with hollow tube 22, and spring A221 is longitudinally provided with hollow tube 22, and the second plate body 23 passes through spring A221 It is movably connected in the lower end of hollow tube 22.
Above-mentioned first plate body 21 is provided with the first block face 211 and the first inclined-plane 212, the first block face 211 and the first plate body 21 Lateral surface be mutually perpendicular to, the first inclined-plane 212 is connected with the first block face 211 and forms certain angle, and the second plate body 23 is provided with Second block face 233 and the second inclined-plane 234, the second block face 233 is perpendicular to the medial surface of second plate body 23, the second inclined-plane 234 It is connected with the second block face 233 and forms certain angle.
As preferred case, the angle of the first inclined-plane 212 and the formation of the first block face 211 is 130 ° to 140 °, the second inclined-plane 234 and second block face 233 formation angle be 50 ° to 60 °.
Second plate body 23 and spring A221 junction are provided with a hollow-core construction with reference to shown in Fig. 3,4, in hollow-core construction Spring B 231 is transversely provided with, the termination of spring B 231 is connected with bayonet lock 232, and the side of hollow tube 22 is provided with what is matched with bayonet lock 232 Through hole 222.
Above-mentioned fixed frame 3 includes being equipped with slideway 311 on outer frame body 31, two vertical sides of outer frame body 31, and passes through cunning Road 311 is connected with movable block 32, and the side of slideway 311 is additionally provided with limitation card 312, and limitation card 312 can make movable block 32 in cunning When being slided on road 311 power is hindered by the friction fixed.
As preferred case, the vertical length of movable block 32 is exactly equal between the first inclined-plane 212 and the second block face 233 Beeline.
As preferred case, the inner bottom surface of outer frame body 31 is mat surface, and the frictional force of mat surface is larger.
When specifically installing plate body 1, fixing insertion 2 is inserted in fixed frame 3 from top to bottom, it undergoes following several mistakes Journey:
As shown in figure 5, when the second inclined-plane 234 and movable block 32 are contacted, the second inclined-plane 234 by movable block 32 perpendicular to The support force active force in the direction of the second inclined-plane 234, the component of the active force in the horizontal direction makes fixing insertion 2 start to inner side Swing, and the second inclined-plane 234 is still not enough plus movable block self gravitation to the component of the pressure in the vertical direction of movable block 32 To overcome the frictional force that movable block 32 is subject to, so this procedure activation block 32 is not slided, spring A221 will not also compress;
As shown in fig. 6, when the second plate body 23 is inserted into 32 lower section of movable block, the second block face 233 is gone to the bottom with movable block 32 Face is contacted, and is completed the installation to plate body 1 and is fixed, fixing insertion 2 will not fall off.
When needing plate body 1 taking out replacing, only need to press lightly on plate body 1, in the process, fixing insertion 2 after Continuous insertion, the first inclined-plane 212 is contacted with movable block 32, and movable block 32 can be produced perpendicular to the first inclined-plane 212 to the first inclined-plane 212 The support force in direction, component makes fixing insertion 2 continue inside side oscillation to support force in the horizontal direction.Because the first 212 pairs of inclined-plane The component of the pressure in the vertical direction of movable block 32 plus the self gravitation of movable block 32 be still not enough to overcome movable block 32 by Frictional force, so this procedure activation block 32 is not slided still, after the first block face 212 is contacted with the upper surface of movable block 32 (as shown in Figure 7), now the lower end of the second plate body 23 contacted just with the bottom surface of outer frame body 31, movable block 32 is in the first block face 212 Under compressing, start to move down, spring A221 starts compression, the second plate body 23 starts to move toward in hollow tube 22;
As shown in figure 8, when movable block 32 is snapped down to 311 lowermost end of slideway, bayonet lock 232 is moved at through hole 222 just And ejected under the elastic force of spring B 231, the locking to the second plate body 23 is formed, the second plate body 23 would not be ejected again.
Then fixing insertion 2 can be just drawn upwardly out, in the process because movable block 32 is maintained at the minimum of slideway 311 End, the second plate body 23 can not be just reset in the space of the lower section of movable block 32, and the bottom surface of movable block 32 will not be to the second block face 233 formation are kept out, and fixing insertion 2 can be extracted out directly, and the extraction of fixing insertion 2 is as shown in Figure 9.Plate body is installed again when next time Before 1, the manual initial position that movable block 32 is mentioned to the top is only needed.
It should be noted that in above-described embodiment, (limitation blocks 312 to the coefficient of friction between movable block 32 and slideway 311 Inhibition) drawn by test of many times, the change for making it meet the various structures in above-mentioned installation process.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification Reason, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes and improvements It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle It is fixed.

Claims (10)

1. one kind perforation honeycomb sound-absorbing integrated board, including plate body (1), it is characterised in that:The plate body (1) includes all tying for three faces The two sides of the perforated panel (11) and perforation plate (12) of structure, the perforated panel (11) and perforation plate (12) are overlapped It is provided with occlusion, front in perforation (13), the perforated panel (11) and is filled with acoustical cotton (14), the perforated panel (11) With honeycomb core (15) is provided with the middle of perforation plate (12), the surface of the acoustical cotton (14) and honeycomb core (15) is coated with compound adhesive (16), the acoustical cotton (14) is by compound adhesive (16) and perforated panel (11) adhesion, and the honeycomb core (15) passes through compound adhesive (16) respectively with perforated panel (11) and perforation plate (12) adhesion, side by side provided with two hinges (17) below the plate body (1), Plate body (1) is connected with fixing device by hinge (17), and the fixing device includes two fixing insertions (2) and a fixed frame (3), the fixing insertion (2) is connected to hinge (17), and fixing insertion (2) can around hinge (17) swing, the fixed frame (3) It is embedding to be embedded at when mounted in wall.
2. a kind of perforation honeycomb sound-absorbing integrated board according to claim 1, it is characterised in that:On the perforated panel (11) Perforation (13) diameter be less than the perforation plate (12) on perforation (13) diameter.
3. a kind of perforation honeycomb sound-absorbing integrated board according to claim 1, it is characterised in that:It is provided with the hinge (17) Flexible Reset mechanism, in original state straight down, and fixing insertion (2) can be under external force for the fixing insertion (1) Inside side oscillation, when external force is removed, the fixing insertion (2) can automatically restore to original state.
4. a kind of perforation honeycomb sound-absorbing integrated board according to claim 1, it is characterised in that:The fixing insertion (2) by Top to bottm includes the first plate body (21), hollow tube (22) and the second plate body (23), first plate body (21) and hollow tube successively (22) it is fixedly connected, spring A (221) is longitudinally provided with the hollow tube (22), second plate body (23) passes through spring A (221) it is movably connected in the lower end of hollow tube (22).
5. a kind of perforation honeycomb sound-absorbing integrated board according to claim 4, it is characterised in that:Second plate body (23) and Spring A (221) junction is provided with a hollow-core construction, and spring B (231), the spring B are transversely provided with hollow-core construction (231) termination is connected with bayonet lock (232), and the hollow tube (22) is provided with the through hole (222) matched with bayonet lock (232) sideways.
6. a kind of perforation honeycomb sound-absorbing integrated board according to claim 4, it is characterised in that:On first plate body (21) Provided with the first block face (211) and the first inclined-plane (212), first block face (211) and the lateral surface of the first plate body (21) are mutual Vertically, first inclined-plane (212) is connected with the first block face (211) and forms certain angle, is set on second plate body (23) There are the second block face (233) and the second inclined-plane (234), second block face (233) is perpendicular to the inner side of second plate body (23) Face, second inclined-plane (234) is connected with the second block face (233) and forms certain angle.
7. a kind of perforation honeycomb sound-absorbing integrated board according to claim 6, it is characterised in that:First inclined-plane (212) Angle with the first block face (211) formation is 130 ° to 140 °, second inclined-plane (234) and the second block face (233) formation Angle is 50 ° to 60 °.
8. a kind of perforation honeycomb sound-absorbing integrated board according to claim 1, it is characterised in that:The fixed frame (3) includes Slideway (311) is equipped with outer frame body (31), two vertical sides of the outer frame body (31), and by slideway (311) activity even It is connected to beside movable block (32), the slideway (311) and is additionally provided with limitation card (312), the limitation card (312) can makes movable block (32) power is hindered when being slided on slideway (311) by the friction fixed.
9. a kind of perforation honeycomb sound-absorbing integrated board according to claim 6 or 8, it is characterised in that:The movable block (32) Vertical length be exactly equal to beeline between first inclined-plane (212) and the second block face (233).
10. a kind of perforation honeycomb sound-absorbing integrated board according to claim any one of 1-9, it is characterised in that:The plate body (1) when mounted, fixing insertion (2) is inserted from top to bottom in fixed frame (3), and
When second inclined-plane (234) and movable block (32) are contacted, the fixing insertion (2) starts inside side oscillation, this mistake Cheng Suoshu springs A (221) does not compress, and the movable block (32) is not slided;
When second plate body (23) is inserted into below movable block (32), the second block face (233) and movable block (32) bottom surface Contact, completes the installation to plate body (1) and fixes;
When the fixing insertion (2) is continued into, first inclined-plane (212) is contacted with movable block (32), and the fixation is inserted Plate (2) continues inside side oscillation, and spring A (221) does not compress still described in this process, and the movable block (32) is not slided, Zhi Dao After one block face (212) is contacted with the upper surface of movable block (32), now the second plate body (23) lower end just with outer frame body (31) bottom Face is contacted, and the movable block (32) starts to move down in the lower pressure of the first block face (212), and the spring A (221) starts Compression, the second plate body (23) starts to move toward in hollow tube (22);
When the movable block (32) is snapped down to slideway (311) lowermost end, the bayonet lock (232) is moved to through hole (222) just Place is simultaneously ejected under the elastic force of spring B (231), the locking to the second plate body (23) is formed, now under the movable block (32) Bottom surface will not be kept out the second block face (233) formation, and fixing insertion (2) can be extracted out directly.
CN201710281237.5A 2017-04-26 2017-04-26 A kind of perforation honeycomb sound-absorbing integrated board Active CN107023133B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109130343A (en) * 2018-07-24 2019-01-04 佛山市南海区西樵桢英木业有限公司 One kind having the wear-resisting glued board of good mechanical strength

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003328530A (en) * 2002-05-09 2003-11-19 Ohki Corp Mounting device and installing method of plate-like reforming material to building outer wall
CN201883640U (en) * 2010-12-28 2011-06-29 帷森(厦门)建材工业有限公司 Heat-insulating and sound-absorbing ceiling system
CN102359199A (en) * 2011-07-20 2012-02-22 广东松本绿色板业股份有限公司 Integrated finished wall as well as industrial production method and detaching method thereof
CN204139500U (en) * 2014-08-14 2015-02-04 常州晟兴和板业有限公司 A kind of acoustic ceiling
CN206110450U (en) * 2016-08-31 2017-04-19 重庆展成家俱制造有限公司 Fastening type furred ceiling aluminium buckle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003328530A (en) * 2002-05-09 2003-11-19 Ohki Corp Mounting device and installing method of plate-like reforming material to building outer wall
CN201883640U (en) * 2010-12-28 2011-06-29 帷森(厦门)建材工业有限公司 Heat-insulating and sound-absorbing ceiling system
CN102359199A (en) * 2011-07-20 2012-02-22 广东松本绿色板业股份有限公司 Integrated finished wall as well as industrial production method and detaching method thereof
CN204139500U (en) * 2014-08-14 2015-02-04 常州晟兴和板业有限公司 A kind of acoustic ceiling
CN206110450U (en) * 2016-08-31 2017-04-19 重庆展成家俱制造有限公司 Fastening type furred ceiling aluminium buckle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109130343A (en) * 2018-07-24 2019-01-04 佛山市南海区西樵桢英木业有限公司 One kind having the wear-resisting glued board of good mechanical strength

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Address after: 230000 No. 166 Jintang Road, Lujiang High-tech Zone, Hefei City, Anhui Province

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Address before: Lujiang County of Hefei City, Anhui province 230000 Lu town of Lujiang Economic Development Zone (Jintang Road West, Tong Road South)

Patentee before: ANHUI CHENHANG ALUMINUM CO., LTD.

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