Hollow combined sound absorption unit and sound barrier thereof

Abstract

The present application relates to a kind of hollow combined sound absorption unit and its sound barrier.The hollow combined sound absorption unit of the present application, sound absorption unit includes unit block, the upper surface of unit block is provided with tenon socket, the lower surface of unit block is provided with mortise socket, tenon socket and mortise socket can be inserted together, and unit block has cavity.It has beneficial effects: after sound absorption unit is assembled, it has single or multiple cavities, forms cavity resonance sound absorption structure, can simultaneously reduce noise to high and low frequency, and sound absorption performance is significantly improved.Through the tenon socket and mortise socket of mutual cooperation and shell splicing assembly mode, it is convenient to assemble, according to need, it is assembled into arbitrary height by unit body socket.Through changing sound absorption unit structure, sound absorption performance is improved, self weight is reduced, and the good mechanical properties of absorption (separation) board are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sound barriers, in particular to a hollow combined sound absorption unit and a sound barrier thereof. BACKGROUND

[0002] A sound barrier is a facility inserted between a sound source and a receiver, so that the sound wave propagation has a significant additional attenuation, so as to weaken the noise influence in a certain area where the receiver is located. The commonly used plug-in plate type metal sound absorption unit generally adopts a perforated box structure, which is composed of an outer shell and a sound absorption material. The sound absorption material is mainly composed of fiber materials and microporous particle inorganic sound absorption materials. The fiber sound absorption material has poor weather resistance, and the wrinkle and powder phenomenon is serious after absorbing water; the particle inorganic sound absorption material has poor sound absorption performance, and the structure of the sound absorption plate is heavy. The processing unit block of the particle sound absorption unit block is heavy, and is easy to break and damage during transportation. Large tonnage presses and large molds are required for production.

[0003] Therefore, the present application provides a hollow combined sound absorption unit and a sound barrier thereof, which has good sound absorption performance, reduces weight, and is simple and convenient to process and assemble. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art, and provides a hollow combined sound absorption unit and a sound barrier thereof, which has good sound absorption performance, reduces weight, and is simple and convenient to process and assemble.

[0005] The present application provides a hollow combined sound absorption unit, and the technical scheme is as follows:

[0006] A hollow combined sound absorption unit, the sound absorption unit comprises a unit block body, a tenon socket is arranged on the upper surface of the unit block body, a mortise socket is arranged on the lower surface of the unit block body, the tenon socket and the mortise socket can be matched and inserted together, and the unit block body has a cavity.

[0007] Further, one side of the unit block body is provided with a protrusion, and the other side of the unit block body is provided with a recess; the protrusion and the recess are matched with the structure of the shell.

[0008] Further, the sound absorption unit has a single or multiple cavities.

[0009] Further, the unit block body has a rectangular cavity.

[0010] Further, the unit block body has multiple elliptical cavities.

[0011] A sound barrier based on a hollow combined sound absorption unit, comprising a shell and a sound absorption unit, the sound absorption unit is assembled in the shell through the tenon socket and the mortise socket which can be matched with each other, and the sound absorption unit is the hollow combined sound absorption unit described above.

[0012] Further, the sound absorption unit is made by mixing the microporous sound absorption material with the binder and then pressing.

[0013] Further, the microporous sound absorption material is natural lightweight aggregate.

[0014] Further, the microporous sound absorption material is one or any combination of sintering of ceramsite, volcanic rock or expanded perlite.

[0015] Further, the binder is one or any combination of silicate cement, sulphoaluminate cement, aluminate cement, polyurethane, polypropylene, polyester, polyether material, water glass or epoxy resin.

[0016] The implementation of the present application includes the following technical effects:

[0017] The sound barrier based on the hollow combined sound absorption unit of the present application has one or multiple cavities after the sound absorption unit is assembled, forms a cavity resonance sound absorption structure, can simultaneously reduce high and low frequency noise, and significantly improves the sound absorption performance. The assembly mode of splicing the convex tenon and the concave mortise with the shell facilitates assembly, and according to the needs, the unit body mortise is assembled into any height. Through the selection of materials, the mode of forming processing and the structure of the sound absorption unit are changed, the sound absorption performance is improved, the self-weight is reduced, and the good mechanical properties of the sound (separation) board are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective structural schematic diagram of a hollow combined sound absorption unit (rectangular cavity) of an embodiment of the present application.

[0019] Figure 2 It is another visual structural schematic diagram of a hollow combined sound absorption unit (rectangular cavity) of an embodiment of the present application.

[0020] Figure 3 It is a perspective structural schematic diagram of a hollow combined sound absorption unit (three-row elliptical cavity) of an embodiment of the present application.

[0021] Figure 4 It is a perspective structural schematic diagram of a shell.

[0022] Figure 5 It is a perspective assembly structural schematic diagram of a sound barrier based on a hollow combined sound absorption unit (rectangular cavity) of an embodiment of the present application.

[0023] Figure 6 It is a perspective assembly structural schematic diagram of a sound barrier based on a hollow combined sound absorption unit (three-row elliptical cavity) of an embodiment of the present application.

[0024] In the figure: 1, unit block; 2, tenon socket; 3, mortise socket; 4, cavity; 5, protrusion; 6, recess; 7, shell. DETAILED DESCRIPTION

[0025] The application will be described in detail below with reference to the embodiments and the accompanying drawings, it should be pointed out that the described embodiments are only intended to facilitate the understanding of the application, and do not limit the application in any way.

[0026] Referring to Figures 1 to 3 As shown, the hollow combined sound absorption unit provided by the embodiment includes a unit block 1, the upper surface of the unit block 1 is provided with a tenon socket 2, the lower surface of the unit block 1 is provided with a mortise socket 3, the tenon socket 2 and the mortise socket 3 can be matched and inserted together, and the unit block 1 has a cavity 4. One side of the unit block 1 is provided with a protrusion 5, and the other side of the unit block 1 is provided with a recess 6; the protrusion 5 and the recess 6 are matched with the structure of the shell 7. The sound absorption unit has a single or multiple cavities 4, forms a cavity 4 resonance sound absorption structure, can simultaneously reduce high and low frequency noise, and the sound absorption performance is significantly improved. Referring to Figure 1 As shown, the unit block 1 has a rectangular cavity. Referring to Figure 3 As shown, the unit block 1 has multiple elliptical cavities, and the figure shows three.

[0027] Referring to Figures 4 to 6 As shown, the embodiment also provides a sound barrier based on the hollow combined sound absorption unit, which includes a shell 7 and a sound absorption unit, the sound absorption unit is assembled in the shell 7 through the tenon socket 2 and the mortise socket 3 which can be matched with each other, and the sound absorption unit is the hollow combined sound absorption unit described above. Further, the sound absorption unit is pressed into shape after the microporous sound absorption material is stirred with an adhesive. The microporous sound absorption material is a natural lightweight aggregate, which is a lightweight aggregate made by crushing and screening a porous rock formed by volcanic eruption; or the microporous sound absorption material is one or any combination of sintered ceramsite, volcanic rock or expanded perlite. The adhesive is one or any combination of silicate cement, sulphoaluminate cement, aluminate cement, polyurethane, polypropylene, polyester, polyether material, water glass or epoxy resin. Figure 5 It is a three-dimensional assembly structure diagram of a rectangular cavity sound absorption unit sound barrier. Figure 6 It is a three-dimensional assembly structure diagram of a three-row elliptical cavity sound absorption unit sound barrier.

[0028] The hollow combined sound absorption unit based sound barrier of the embodiment has single or multiple cavities 4 after the sound absorption unit is assembled, forms cavity resonance sound absorption structure, can simultaneously reduce noise of high and low frequencies, and sound absorption performance is obviously improved. The assembly mode of the tenon and mortise 2 and the mortise and tenon 3 capable of cooperating with each other and the shell 7 is spliced, assembly is facilitated, and according to needs, the unit body mortise is assembled into any height. Through selection of materials, change of forming processing mode and sound absorption unit structure, sound absorption performance is improved, self weight is reduced, and meanwhile, good mechanical properties of the sound (separation) board are ensured.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited to the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A sound barrier based on a hollow combined sound absorption unit, comprising a shell and a plurality of sound absorption units, the sound absorption units are assembled in the shell through mutually cooperative tenon and mortise, characterized in that: The sound absorption unit comprises unit blocks, the upper surface of the unit blocks is provided with tenon sockets, the lower surface of the unit blocks is provided with mortise sockets, the tenon sockets and the mortise sockets can be matched and inserted together, and the unit blocks have a plurality of cavities; The sound absorption unit is formed by mixing the microporous sound absorption material with the adhesive and then pressing; The microporous sound absorption material is one or any combination of sintered ceramsite, sintered volcanic rock or sintered expanded perlite; and the adhesive is one or any combination of silicate cement, sulphoaluminate cement, aluminate cement, polyurethane, polypropylene, polyester, polyether material, water glass or epoxy resin.

2. A sound barrier based on a hollow combined sound absorbing unit according to claim 1, characterized in that: One side of the unit block is provided with a protrusion, and the other side of the unit block is provided with a recess; the protrusion and the recess are matched with the structure of the shell.

3. A sound barrier based on a hollow combined sound absorption unit according to claim 1, characterized in that: The unit block has a plurality of elliptical cavities.

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