CN208918088U - Sound-absorbing structure with irregular gap - Google Patents

Abstract

The utility model is in relation to a kind of sound-absorbing structure with irregular gap, can be used for building, between the irregular gap of vehicle, aircraft, ship, or fill between substrate and table cladding plate.Prevent foamed cell moisture absorption and adjust the shape of packaging material bag to reduce the gap between substrate and table cladding plate with the characteristic of packaging material, or fill between the irregular gap of vehicle, aircraft, ship, the sound absorbing power for reaching sound-absorbing structure increases, and reduces its cost of manufacture.

Description

Sound-absorbing structure with irregular gap

Technical field

The utility model is a kind of related sound-absorbing structure, especially a kind of sound-absorbing structure with irregular gap.

Background technique

Under the modern times, overdeveloped situation, since land resource is limited, residential building is all towards high building and intensive Change development.And for the gross demand of inhabitation, it also gradually increases, it is desirable to which living environment can have safety, quiet life matter Amount.

However, muli-sounds inevitably can be manufactured or receive in life in the living environment of densification now, due to Sound is the sound wave as object because going out produced by vibration, is passed via the ear for being transferred to human body of air, then through auditory nerve It is sent to brain, and the impression as caused by brain.

Therefore, various noises are flooded between floor and floor, often, as low as the noise etc. that falls of article, it is big to small Bath etc. noise is rushed in child's bounce, sports equipment contact ground or the draining of bath lavatory.Institute's house sound Environmental Studies tune is ground according to building Display is looked into, floor impulsive sound is the one of the highest noise source of collective residence puzzlement degree.So, rigidly cannot in building main structure body In the case where changing easily, the floor finishing between floor and floor certainly will be the best approach of improvement noisy environment.

And it is exactly using sound-absorbing material that floor, which is fitted up most commonly seen, and the so-called sound-absorbing of sound-absorbing material refers to and absorbs sound Energy, that is, sound can become thermal energy and disappear (dissipation).Sound-absorbing material and structure, which convert incident sound, to be thermal energy, by The minimum energy possessed by sound wave, the thermal energy converted is minimum, and it includes two mechanism that energy, which is converted to heat-energy losses: (1) sticking Stagnant flow losses (viscous flow losses) and (2) internal friction (internal friction).

(1) viscid flow losses: in effective sound-absorbing material structure, containing there are many hole of interconnection, sound wave is incoming When in hole, the air molecule speed of sound wave and intrapore sound-absorbing material cause opposite movement, therefore the sound-absorbing in hole Material surface generates boundary layer loss (Boundary layer losses).

(2) internal friction: the cellular structure of the flexible fibrous structure of sound-absorbing material or elasticity, due to sound wave It is passed to and fibrous structure is caused to be compressed, rebounded, or cause the flexible of cellular structure, elastic vibration motion back and forth.Cause This because of concussion back and forth, and causes the internal friction off-energy function of structure in these structures.

Furthermore it can also be by the reflection and refraction of sound wave: after sound wave is incident on porous sound absorbing material surface, a part of sound Wave is reflected from porous material surface, and another part sound wave is transmitted into porous material.Into this part sound wave of porous material, draw The air vibration risen in porous sound absorbing material will be a part of due to the friction in air and hole and viscous resistance etc. in porous material Sound can be converted into thermal energy.In addition, sound wave is further decayed in porous sound absorbing material by multiple reflections, when entering porous sound absorbing When sound wave in material returns again to, sound wave energy has been decayed very much, only the energy of remaining fraction, it is most of then by porous suction Sound material loss sponges.

The sound absorption function of sound-absorbing material must mainly rely in sound-absorbing material and can gradually use up sound, acoustic absorptivity meeting Increase with frequency and increase, usually has preferable performance in middle and high frequency, and in more irritating low frequency noise, then it must be with thickness To overcome.

Sound-absorbing material used in elevated type floor most commonly seen now still based on rock wool, glass fibre class, however Sound-absorbing material is layed between the table cladding plate (seeming ceramic tile, stone material or timber etc.) on floor and cement floor, after the completion of laying, due to Cement floor can generate moisture, when sound-absorbing material moisture absorption or water suction, it is rotten can cause material, and reduce the voidage of material, influence The sound absorption qualities of material.Furthermore due to the support that table cladding plate needs when being laid with, and the presence of these angle struts be will affect The laying of sound-absorbing material, it may be desirable to which sound-absorbing material just can be carried out laying, and the laying of sound-absorbing material can often encounter and leave gap Problem.

Therefore, how to solve the problems, such as that above-mentioned sound-absorbing material is previously mentioned that (material composition is single, moisture absorption influences and leave seam Gap impact effect), and increase the sound absorbing power of sound-absorbing material simultaneously, it is to be solved by those skilled in the art the problem of.

Utility model content

The main purpose of the utility model is to provide a kind of sound-absorbing structure with irregular gap, by a variety of pre- If or waste foamed body is formed by foamed cell to carry out sound-absorbing, can also may not only be reached using waste foamed body again Reduce the cost of manufacture of sound-absorbing structure.

The another object of the utility model is to provide a kind of sound-absorbing structure with irregular gap, by a variety of pre- If or waste foamed body is formed by foamed cell, is packed by the formed packaging material bag of packing timber, and fill in substrate and table cladding plate it Between.It uses prevention foamed cell moisture absorption and adjusts the shape of packaging material bag to reduce the gap between substrate and table cladding plate, reach Sound absorbing power increases.

To achieve the above object, the utility model discloses a kind of sound-absorbing structure with irregular gap, packet Contain: a substrate, a packaging material bag and a table cladding plate, wherein the packaging material bag is placed on the substrate, and includes that multiple foaming are single Member, which forms an irregular gap in the packaging material bag and the table cladding plate is located on the packaging material bag.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, and wherein the table covers Multiple angle struts are further included between plate and the substrate, one end of a few angle struts connects the table cladding plate, this is a few The other end of angle strut connects the substrate.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, and wherein this is a few Foamed cell is a graininess, a strip, a sheet, a blocky or star shape.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, and wherein this is a few Foamed cell its selected from an a rubber, nitrile rubber, a butadiene-styrene rubber, a rubber-plastic, a polyurethane, a polypropylene, one poly- Therein one of group composed by ethylene, a polystyrene, a polyvinyl chloride or an ethylene-vinyl acetate copolymer or its Combination.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, and wherein this is a few It is a closed pore formula foaming structure or an open-cell foaming structure inside the one of foamed cell, and a surface of a few foamed cells For the open-cell foaming structure.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, wherein the packaging material Bag is a nonwoven fabric, a plastic cloth, a paper bag or a cloth bag.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, wherein the packaging material Bag adjusts a shape of the packaging material bag according to an accommodating space of the substrate and the table cladding plate.

The technological means of the utility model further comprises: a kind of sound-absorbing structure with irregular gap, is set to one and hands over Logical tool, it includes: an inner plating；One packaging material bag, is placed on the inner plating, which includes multiple foamed cells, A few foamed cells form an irregular gap in the packaging material bag；And a lamina rara externa, it is located on the packaging material bag.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, wherein the outer layer Multiple angle struts are further included between plate and the inner plating, one end of a few angle struts connects the lamina rara externa, those The other end of a angle strut connects the inner plating.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, and wherein this is a few Foamed cell is a graininess, a strip, a sheet, a blocky or star shape.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, and wherein this is a few Foamed cell its selected from an a rubber, nitrile rubber, a butadiene-styrene rubber, a rubber-plastic, a polyurethane, a polypropylene, one poly- Therein one of group composed by ethylene, a polystyrene, a polyvinyl chloride or an ethylene-vinyl acetate copolymer or its Combination.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, and wherein this is a few The inside of foamed cell is a closed pore formula foaming structure or an open-cell foaming structure, and the surface of a few foamed cells is to be somebody's turn to do Open-cell foaming structure.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, wherein the packaging material Bag is a nonwoven fabric, plastic cloth, paper bag or cloth bag.

The utility model provides an embodiment, and content is the sound-absorbing structure with irregular gap, wherein the packaging material Bag adjusts a shape of the packaging material bag according to an accommodating space of the inner plating and the lamina rara externa.

Detailed description of the invention

Fig. 1: it is the schematic diagram of an embodiment of the utility model；And

Fig. 2: it is the experimental result picture of an embodiment of the utility model.

[figure number is to as directed]

10 substrates

20 packaging material bags

201 foamed cells

30 table cladding plates

40 angle struts

401 PE resilient cushions

Specific embodiment

In order to make the utility model structure feature and it is reached the effect of have a better understanding and awareness, it is special with compared with Good embodiment and cooperation detailed description, is described as follows:

In view of sound-absorbing material because material composition is single, moisture absorption and the shadow for leaving the attenuating of sound absorbing power caused by gap It rings, accordingly, the utility model proposes a kind of sound-absorbing structure with irregular gap then, to solve to ask caused by known techniques Topic.

Hereinafter, the spy that a kind of sound-absorbing structure with irregular gap that the utility model will be further illustrated is included Property, the structure and its method arranged in pairs or groups:

Referring to Fig. 1, its schematic diagram for an embodiment of the utility model.And it is illustrated with residential building.Such as Shown in figure, a kind of sound-absorbing structure with irregular gap, it includes: a substrate 10；One packaging material bag 20 is placed in the substrate 10 On, it include multiple foamed cells 201 in the packaging material bag 20, which forms one not in the packaging material bag 20 Regular gap；And a table cladding plate 30, it is located at the packaging material bag 20 and is laid on the packaging material bag layer (unnumbered) of formation.At this Packaging material bag layer shown in utility model schema is only a kind of schematic diagram, also can be plural number in the practical laying of the packaging material bag 20 The irregular alignment of 20 interleaving stack of packaging material bag and form irregular packaging material bag layer configuration, spy gives explanation.

Wherein the table cladding plate 30 is that a plank, a slabstone, a ceramic tile, a ground backing plate or a lamina rara externa (are used for traffic work Tool), which is a cement floor, a floor or an inner plating (being used for the vehicles).And the table cladding plate 30 and the substrate 10 Between further include multiple angle struts 40, one end of a few angle struts 40 connects (abutting) the table cladding plate 30, those The other end of a angle strut 40 connects (abutting) substrate 10.In better embodiment, a few angle struts 40 are extremely Few one end is sticked and has a PE resilient cushion 401, preferably contacts abutting effect to generate respectively with the substrate 10, the table cladding plate 30 Fruit.

And a few foamed cells 201 are that multiple waste foamed bodies and/or multiple foaming material bodies are formed.And a few foaming Unit 201 is a graininess, a strip or a sheet or is an irregular shape (a such as one blocky or star shape).It should A few foamed cells 201 be graininess, then granular a few its partial size of foamed cell 201 be not limited in dimension, but preferably Having a size of 3mm~5mm.

And a few foamed cells 201 made by a few waste foamed bodies or multiple foaming material bodies its be selected from a rubber Glue, a nitrile rubber, a butadiene-styrene rubber, a rubber-plastic, a polyurethane, a polypropylene, a polyethylene, a polystyrene, one gather Therein one or combinations thereof of group composed by vinyl chloride or an ethylene-vinyl acetate copolymer.But a few foaming are single Shape, partial size, density, foaming body generating mode, the processing procedure mode of member are unrestricted.

Connect it is above-mentioned, a few foamed cells 201 one inside be a closed pore formula foaming structure or an open-cell foaming knot Structure, and a surface of a few foamed cells 201 is the open-cell foaming structure.A few foamed cells 201 are according to stomata point Mode for cloth is divided into the open-cell foaming structure (Open Cell) and the closed pore formula foaming structure (Closed Cell)；Stomata and gas What hole interconnected is known as the open-cell foaming structure, and what stomata and stomata were mutually isolated is known as the closed pore formula foaming structure.

Connect it is above-mentioned, the open-cell foaming structure have preferable water imbibition, gas permeability and sound absorption properties, sound-absorbing effect compared with By force, and the closed pore formula foaming structure then has preferable thermal insulation, intensity and least.A few foaming due to the utility model The surface of unit 201 is the open-cell foaming structure, and the inside is the closed pore formula foaming structure or open-cell foaming knot Structure, therefore a few foamed cells 201 have the advantages that the open-cell foaming structure and the closed pore formula foaming structure simultaneously, have Good sound-absorbing effect and certain intensity.

Furthermore the packaging material bag 20 includes a few foamed cells 201, and a few foamed cells 201 are in the packaging material bag 20 An irregular gap is formed, increases the surface area of a few foamed cells 201 using the irregular gap, is conducive to sound wave It absorbs.

After sound wave is incident on a few 201 surfaces of foamed cell, a part of sound wave is from a few 201 surfaces of foamed cell Reflection, another part sound wave are transmitted into a few foamed cells 201.Into this part sound wave of a few foamed cells 201, Cause the air vibration in more a few foamed cells 201, due to the friction in air and hole in a few foamed cells 201 and sticks A part of sound can be converted thermal energy by resistance hysteresis etc..In addition, sound wave in a few foamed cells 201 by multiple reflections into The decaying of one step, when the sound wave entered in more a few foamed cells 201 returns again to, sound wave energy has been decayed very much, only surplus The energy of lower fraction, it is most of then sponged by a few foamed cells 201 loss.

And connect above-mentioned, which is a nonwoven fabric, a plastic cloth, a paper bag or a cloth bag etc., but the packaging material bag 20 shape, density, material, thickness and size are unrestricted.It is subject to by soft, the deformable covering property of the packaging material bag 20 Contain carrying, so also can protect a few foamed cells 201 in the packaging material bag 20, keeps a few foamed cells 201 long Time maintains splendid sound absorbing power.

Wherein a few foamed cells 201 are that waste foamed body and/or a few foaming material bodies are formed.And in order to reduce this The accommodating space state in its gap is formed between substrate 10 and the table cladding plate 30, the packaging material bag 20 is according to the substrate 10 and the table cladding plate The accommodating space between 30 adjusts the quantity and shape of the packaging material bag 20.

Based on aforementioned composition, when a kind of sound-absorbing structure application implementation with irregular gap of the utility model, if using In building floor sound insulation, then the substrate 10 is the cement floor or the floor, and the table cladding plate 30 is the wood for trampling Plate, the slabstone, the ceramic tile or the ground backing plate etc., to form the sound insulation on floor；If be applied to the vehicles for example vehicle, aircraft, When carrying out sound insulation between the irregular gap of ship, then the substrate 10 is then interior for this of a vehicles (vehicle, aircraft, ship etc.) Laminate, and the table cladding plate 30 is then the lamina rara externa of the vehicles (vehicle, aircraft, ship etc.), to form the traffic work The sound insulation of tool is arranged, and the embodiment for being applied to the vehicles is identical as the embodiment of building floor sound insulation is applied to.

Finally referring to Fig. 2, it is the experimental result picture of an embodiment of the utility model.

Above is only the preferred embodiments of the utility model, not are used to limit the range of the utility model implementation, All equivalent changes and modifications carried out by according to shape described in the utility model claims range, construction, feature and spirit, should all It is included in the scope of the claims of the utility model.

Claims (12)

1. a kind of sound-absorbing structure with irregular gap, which is characterized in that it includes:

One substrate；

One packaging material bag, is placed on the substrate, which includes multiple foamed cells, and a few foamed cells are in the packaging material An irregular gap is formed in bag；And

One table cladding plate is located on the packaging material bag.

2. as described in claim 1 with the sound-absorbing structure in irregular gap, which is characterized in that wherein the table cladding plate and the substrate Between further include multiple angle struts, one end of a few angle struts connects the table cladding plate, a few angle struts The other end connects the substrate.

3. as described in claim 1 with the sound-absorbing structure in irregular gap, which is characterized in that wherein a few foamed cells are One graininess, a strip, a sheet, a blocky or star shape.

4. as described in claim 1 with the sound-absorbing structure in irregular gap, which is characterized in that wherein a few foamed cells Inside is a closed pore formula foaming structure or an open-cell foaming structure, and the surface of a few foamed cells is open-cell foaming Structure.

5. as described in claim 1 with the sound-absorbing structure in irregular gap, which is characterized in that wherein the packaging material bag is not knitted for one Cloth, plastic cloth, paper bag or cloth bag.

6. as described in claim 1 with the sound-absorbing structure in irregular gap, which is characterized in that wherein the packaging material bag is according to the base One accommodating space of plate and the table cladding plate adjusts a shape of the packaging material bag.

7. a kind of sound-absorbing structure with irregular gap is set to a vehicles, which is characterized in that it includes:

One inner plating；

One packaging material bag, is placed on the inner plating, which includes multiple foamed cells, and a few foamed cells are in the packet An irregular gap is formed in material bag；And

One lamina rara externa is located on the packaging material bag.

8. as claimed in claim 7 with the sound-absorbing structure in irregular gap, which is characterized in that the wherein lamina rara externa and the internal layer Multiple angle struts are further included between plate, one end of a few angle struts connects the lamina rara externa, a few angle struts The other end connect the inner plating.

9. as claimed in claim 7 with the sound-absorbing structure in irregular gap, which is characterized in that wherein a few foamed cells are One graininess, a strip, a sheet, a blocky or star shape.

10. as claimed in claim 7 with the sound-absorbing structure in irregular gap, which is characterized in that wherein a few foamed cells Inside be a closed pore formula foaming structure or an open-cell foaming structure, and the surface of a few foamed cells be the open-cell send out Bubble structure.

11. as claimed in claim 7 with the sound-absorbing structure in irregular gap, which is characterized in that wherein the packaging material bag is not one not Woven fabric, plastic cloth, paper bag or cloth bag.

12. as claimed in claim 7 with the sound-absorbing structure in irregular gap, which is characterized in that wherein packaging material bag foundation should One accommodating space of inner plating and the lamina rara externa adjusts a shape of the packaging material bag.