CN208347196U - A kind of surface decoration structure improving the room reverberation time - Google Patents
A kind of surface decoration structure improving the room reverberation time Download PDFInfo
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- CN208347196U CN208347196U CN201820946520.5U CN201820946520U CN208347196U CN 208347196 U CN208347196 U CN 208347196U CN 201820946520 U CN201820946520 U CN 201820946520U CN 208347196 U CN208347196 U CN 208347196U
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- sound absorption
- reverberation time
- sound
- perforated plate
- improving
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Abstract
The utility model discloses a kind of surface decoration structure for improving the room reverberation time, by substrate, sound absorption perforated plate, ventilated membrane, sound absorption mortar mix layered composite construction, wherein constitute a cavity between substrate and sound absorption perforated plate；The sound absorption perforated plate upper surface covers the ventilated membrane by adhesive；Absorb sound mortar described in the spary of the ventilated membrane upper surface.The utility model proposes a kind of novel surface sound absorption decorating structures, can improve the reverberation time and reach interior decoration landscaping effect.In the structure, sound absorption perforated plate and sound absorption two kinds of main body sound-absorbing materials of mortar are used, had not only improved the perforated plate that absorbs sound in original technique as the uneven defect of finish coat bring, but also improve sound absorption effect.
Description
Technical field
The utility model relates to a kind of perforated plate and its surface decorating methods, are applied on room acoustics processing technique, use
In the improvement room reverberation time, while it being also used for interior decoration beauty, belongs to architectural acoustics technical field.
Background technique
After the room reverberation time refers to that sound source stops sounding, when the time required for sound pressure level reduction 60dB is reverberation
Between, unit is generally the second.The quality of indoor sound effect is determined that the reverberation time is too long, sound ambiguous by the reverberation time,
Reverberation time is too short, and sound is dry and cold stiff, and the suitable reverberation time embodies graceful mellow and full sound effect.
The room reverberation time determined by house decorative material and structure, material of the acoustic absorptivity NRC less than 0.2 of material
It is reflecting material, material of the NRC greater than 0.2 is considered as sound-absorbing material, and acoustic absorptivity is to indicate sound-absorbing material or sound absorption structure
Absorb the ability of sound.In Code in Hazardous Special Locations, such as cinema, arenas, the places such as meeting room are more demanding to sound quality, in order to
The suitable reverberation time is obtained, needs to consider the calculating and design to the reverberation time indoors when Decoration Design.
Traditionally, the structure for improving the reverberation time, which mainly has, adds sound absorption cotton in perforated plate, wood wool board, glass fiber cotton, and rock wool is micro-
Hole sponge, polyester fiber board etc., wherein using the reverberation time for adding sound absorption cotton mode to improve room in perforated plate, but decorate
Property be multiple spot, be easy to produce visual fatigue, decorative effect is single, cannot achieve integral planar decorative effect.
Utility model content
The utility model cannot achieve overall leveling decoration for perforated plate, otherwise be unable to reach lacking for expected reverberation effect
It falls into, a kind of surface decoration structure improving the room reverberation time is provided, foundation is not destroying reverberation on the basis of former perforated plate
Under the premise of time improvement, globality plane decoration effect is realized.
The technical solution that the utility model is taken is as follows: a kind of surface decoration structure improving the room reverberation time, by base
Plate, sound absorption perforated plate, ventilated membrane, sound absorption mortar mix layered composite construction, in which:
The substrate is connect with sound absorption perforated plate by keel, constitutes a cavity between substrate and sound absorption perforated plate；
The sound absorption perforated plate upper surface covers the ventilated membrane by adhesive；
Absorb sound mortar described in the spary of the ventilated membrane upper surface.
Further, can in the cavity filler plug sponge, rock wool or glass fiber cotton, to enhance sound absorption effect.
Further, the sound absorption perforated plate is perforated metal or perforating gypsum board, or perforation cement plate, or perforation
Plank；Punching rate 10%~40%, 1~10mm of pore size.
Further, the ventilative film thickness is in 2mm or less.
Further, the ventilated membrane is non-woven fabrics or glass-fiber-fabric or various fire-retardant breathable cloths.
Further, described adhesive is the water-soluble glue of 10% concentration.
Further, the overall thickness that the sound absorption mortar is laid with is less than 12mm.Divide 2~3 sparies, until surfacing.
Compared with prior art, the beneficial effects of the utility model are embodied in: the utility model proposes a kind of novel tables
Face decorating structure can improve the reverberation time and reach interior decoration landscaping effect.In the structure, sound absorption perforation is used
Plate and sound absorption two kinds of main body sound-absorbing materials of mortar, these material sound absorption effects are good, and intensity is high, prevent fires, is moisture-proof, freeze proof, ageing-resistant
Ability it is strong, be Green environmental-protection building sound-absorbing material and without any organic volatile.Sound absorption mortar is applied to sound absorption perforated plate
Surface had not only improved the perforated plate that absorbs sound in original technique as the uneven defect of finish coat bring, but also has not influenced sound absorption effect
Fruit, sound absorption mortar are the porous entrant sound sandstone layers that natural silica Sand is formed by polymer polymerizing reagentia, and sandstone layer exists big
The hole of amount, has good porous sound transparency, and extraneous acoustic wave energy can penetrate sandstone layer, weaken acoustic energy.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not considered as limitations of the present invention.
Fig. 1 is the sectional view of the utility model composite decorative structure.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and examples, wherein attached drawing is used for and embodiment one
It rises and illustrates the utility model, but it will be appreciated by those skilled in the art that, following embodiment is not to the utility model technology
Unique restriction that scheme is made, all any equivalents or change done under technical solutions of the utility model Spirit Essence,
It is regarded as belonging to the protection scope of the utility model.
The decorating structure mainly includes the following material: substrate 1, sound absorption perforated plate 2, adhesive 3, ventilated membrane 4, sound absorption
Mortar 5.
Substrate 1 is generally by anti-corrosion and decorates the metal or nonmetal plate that handle, such as steel plate, aluminium alloy plate, plank,
Plastic plate etc..Further, perforation also can be set on substrate, perforation is micropore, plays sound absorption.Also further, base
Plate 1 can also directly be substituted by indoor wall.
Absorb sound perforated plate 2, and any sound absorption perforated plate in the prior art, generally perforated metal can be used, wear
Hole plasterboard, perforation plank etc..Punching rate general 10%~40%, hole size about 1~10mm, shape is unlimited, can be cylindrical hole
Or bellmouth.
Adhesive 3 is the water-soluble glue for being diluted to 10% concentration.
Ventilated membrane 4 generally selects non-woven fabrics or glass-fiber-fabric etc., and further, non-woven fabrics is acoustic absorption nonwoven fabrics.Ventilated membrane 3 is thick
Degree is generally in 2mm or less.
Absorb sound mortar 5, is a kind of different-grain diameter, the sand grains of shape and the silicate of heterogeneity, according to its special ratios
The slurry of silica sand made of after mixing.The general mesh number of sand grains is in 50~100 mesh.Silicate is generally by sodium metasilicate, magnesium silicate, lithium metasilicate etc.
Silicate composition.Silica sand slurry whole composition proportion be, by weight: 75% sand grains, 6% sodium metasilicate, 2% magnesium silicate, 1% silicic acid
Lithium, 16% water.It is natively formd when sand grains is bonded together by silicate, between sand grains a large amount of, irregular, mutual
The micro-pore of connection, thus the silica sand of the various different flow resistances of output and sound absorption characteristics plastering slurry, is applied on surface of wall
With certain sound absorption effect.It is detected, the noise reduction coefficient for the mortar that absorbs sound can reach NRC:0.5~0.8.
Above-mentioned different materials form certain layered composite structure by combination.Firstly, substrate 1 and sound absorption perforated plate 2
Between connected by keel 6, keel spiral-lock, order dress, be screwed, a variety of feasible patterns such as viscous dress are installed, on keel periphery
With guard seal, so that forming a cavity 7 between substrate 1 and sound absorption perforated plate 2.Further, in 7 Nei Kesaihai of cavity
Silk floss, rock wool, glass fiber cotton etc. enhance sound absorption effect.
In sound absorption 2 upper surface brushwork adhesive 3 of perforated plate, perforation plate surface is kept to cover one under certain dampness
Ventilated membrane 4 is sticked on sound absorption perforated plate 2 by thickness degree 2mm ventilated membrane 4 below.Brush can be used in the method for brushwork adhesive 3
It applies.Ventilated membrane 4 is manually spread out, is washed, and is covered on sound absorption perforated plate 2, is clung by adhesive 3.Ventilated membrane 4 must be laid with flat
Directly, there cannot be the phenomenon of fold protrusion, otherwise influence surfacing decorative effect.
Ventilated membrane 4 is non-woven fabrics or glass-fiber-fabric etc., sprays or paint again sound absorption mortar after ventilated membrane 4 is laid with smooth
5.Sound absorption mortar 5 is less than 12mm in the overall thickness that 4 upper surface of ventilated membrane is laid with, and sprays or painting number 2~3 times until surface is flat
It is whole, realize surface integrally smooth decorative effect.Need three layers of spary under normal circumstances: first layer spary is (to herein refer to basal plate
The plate of ventilated membrane 4 is covered on sound absorption perforated plate 2) hole on surface filled up, second layer spary be basal plate is carried out it is levelling,
Third layer spary is for architectural surface.It is both needed to carry out naturally dry after each layer of spary.
Further, sand grains can use the natural fine sand of different colours, different chilterns to be modulated as raw material, reach decoration
To the purpose of i.e. beautiful sound absorption again.
" upper surface " refers both to prolong the body surface of substrate outward direction above.
Lamellar composite knot is combined by said sequence by substrate 1, sound absorption perforated plate 2, ventilated membrane 4, sound absorption mortar 5 as a result,
Structure, loaded on wall or smallpox plate top surface.Such implementation is suitable for the sound absorption decoration of metope and smallpox plate top surface, protects
Holding acoustic absorptivity is 0.4 or more, and combustibility is A grades, can be widely applied to various places.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.
Claims (8)
1. it is a kind of improve the room reverberation time surface decoration structure, it is characterised in that: by substrate, sound absorption perforated plate, ventilated membrane,
Absorb sound mortar mix layered composite construction, wherein
The substrate is connect with sound absorption perforated plate by keel, so that constituting a cavity between substrate and sound absorption perforated plate；
The sound absorption perforated plate upper surface covers the ventilated membrane by adhesive；
Absorb sound mortar described in the spary of the ventilated membrane upper surface.
2. the surface decoration structure according to claim 1 for improving the room reverberation time, it is characterised in that: in the cavity
Filler plug sponge, rock wool or glass fiber cotton.
3. the surface decoration structure according to claim 1 for improving the room reverberation time, it is characterised in that: the sound absorption is worn
Orifice plate is perforated metal or perforating gypsum board, or perforation plank；Punching rate 10%~40%, 1~10mm of pore size.
4. the surface decoration structure according to claim 1 for improving the room reverberation time, it is characterised in that: the ventilated membrane
Thickness is in 2mm or less.
5. the surface decoration structure according to claim 1 or 4 for improving the room reverberation time, it is characterised in that: described
Air film is non-woven fabrics or glass-fiber-fabric or fire protection flame retarding breathable cloth.
6. the surface decoration structure according to claim 1 for improving the room reverberation time, it is characterised in that: described adhesive
For the water-soluble glue of 10% concentration.
7. the surface decoration structure according to claim 1 for improving the room reverberation time, it is characterised in that: the sound absorption sand
The overall thickness that slurry is laid with is less than 12mm.
8. the surface decoration structure according to claim 1 or claim 7 for improving the room reverberation time, it is characterised in that: the suction
2~3 sparies of sound mortar point, until surfacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820946520.5U CN208347196U (en) | 2018-06-20 | 2018-06-20 | A kind of surface decoration structure improving the room reverberation time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820946520.5U CN208347196U (en) | 2018-06-20 | 2018-06-20 | A kind of surface decoration structure improving the room reverberation time |
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| CN208347196U true CN208347196U (en) | 2019-01-08 |
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| CN201820946520.5U Active CN208347196U (en) | 2018-06-20 | 2018-06-20 | A kind of surface decoration structure improving the room reverberation time |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459274A (en) * | 2020-12-01 | 2021-03-09 | 广东启沃环境科技有限公司 | Metal perforated sound absorption board |
-
2018
- 2018-06-20 CN CN201820946520.5U patent/CN208347196U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459274A (en) * | 2020-12-01 | 2021-03-09 | 广东启沃环境科技有限公司 | Metal perforated sound absorption board |
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