Lightweight board wall structure capable of blocking and absorbing medium-high frequency noise

Abstract

The utility model discloses a light siding wall structure for obstructing and absorbing medium-high frequency noise, which comprises a first light wall body layer, a light steel keel layer and a second light wall body layer which are arranged in sequence, sound absorption materials are filled in gaps of the light steel keel layer, the thickness of the light steel keel layer is 60mm, and the thickness of the second light wall body layer is 10mm. The sum of the thickness of the first light wall body layer and the thickness of the second light wall body layer is 140 mm, and the thickness of the first light wall body layer is 50-90 mm. The middle-high-frequency noise barrier is simple in structure, and the sound absorption materials are filled in the light steel keel layer through the two layers of light wall bodies and the light steel keel layer, so that a good barrier effect on middle-high-frequency noise can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound insulation wall technology field, concretely relates to a light board wall structure of barrier absorption middle high frequency noise. BACKGROUND

[0002] The high frequency noise in daily life mainly has: loudspeaker sound, car siren sound, musical instrument, square dance, dog howling etc., in the prior art, the design of sound insulation wall structure is usually based on the selection of material, the thickness of wall, the arrangement structure form of wall and the filling mode of sound insulation material and multiple factors. However, the existing wall often performs poorly when aiming at high frequency noise, and cannot effectively isolate high frequency noise. And there are often more high frequency noise in the residential area where people live, and the existence of the above problems can cause people to be polluted by noise in daily life. The utility model discloses a kind of sound-absorbing walls with the publication number CN208441281 U of China utility model patent, including metal bottom plate, low-frequency sound-absorbing damping coated on the inner wall of metal bottom plate, sound-absorbing perforated panel and sound insulation layer, the sound-absorbing wall further includes sound insulation board, helmholtz cavity sound insulation layer, the sound-absorbing wall is sequentially arranged according to metal bottom plate, sound insulation layer, sound insulation board, helmholtz cavity sound insulation layer and sound-absorbing perforated panel. It can effectively isolate low frequency and middle, high frequency noise. However, since its bottom plate and panel are made of metal material, the cost is high, which limits the application of this structure in a wider field, especially in budget-limited occasions. CONTENT OF UTILITY MODEL

[0003] According to the above deficiencies in the prior art, the utility model solves the problem: provide a light board wall structure for middle high frequency noise sound-absorbing and sound-insulating effect is good, and simple structure, relatively low cost.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] The utility model discloses a light board wall structure of barrier absorption middle high frequency noise, including first light wall layer, light steel keel layer and second light wall layer set gradually, the light steel keel layer is filled with glass wool, the thickness of light steel keel layer is 60mm, the sum of the thickness of first light wall layer and second light wall layer is 140mm, and the thickness of first light wall layer is 50-90mm.

[0006] Preferably, the material of first light wall layer is modified gypsum hollow board, and the material of second light wall layer is polystyrene particle sandwich panel.

[0007] Preferably, the thickness of modified gypsum hollow board is 50mm, and the density is 1050kg / m3, and the thickness of polystyrene particle sandwich panel is 90mm, and the density is 1120kg / m3.

[0008] Preferably, the material of the first lightweight wall layer is a fly ash hollow board, and the material of the second lightweight wall layer is a polystyrene particle sandwich board.

[0009] Preferably, the thickness of the fly ash hollow board is 80mm, and the density is 1050kg / m3, and the thickness of the polystyrene particle sandwich board is 60mm, and the density is 1120kg / m3.

[0010] Preferably, the outer sides of the first lightweight wall layer and the second lightweight wall layer are respectively provided with 1.

[0011] Preferably, the sound-absorbing material is glass wool

[0012] Therefore, the beneficial effects of the present application are as follows:

[0013] The present application has the advantages of simple structure, and the two-layer lightweight wall and the light steel keel layer filled with sound-absorbing material can achieve good barrier and absorption effect on medium and high frequency noise. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The present application has the advantages of simple structure, and the two-layer lightweight wall and the light steel keel layer filled with sound-absorbing material can achieve good barrier and absorption effect on medium and high frequency noise.

[0015] LEGEND:

[0016] 1, cement mortar protective layer; 2, first lightweight wall layer; 3, light steel keel layer; 4, sound-absorbing material; 5, second lightweight wall layer. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application embodiment will be described clearly and completely in the following with reference to the drawings of the present application specific embodiment. The same reference signs in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present application, not all embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0018] Embodiment one

[0019] As Figure 1The illustrated embodiment provides a lightweight wall structure for blocking and absorbing mid-to-high frequency noise, comprising a first lightweight wall layer 2, a light steel keel layer 3, and a second lightweight wall layer 5 arranged sequentially. In this embodiment, the first lightweight wall layer 2 can be made of modified gypsum hollow board or ash hollow board, and the second lightweight wall layer 5 can be made of ash hollow board or polystyrene particle sandwich panel. The specific materials of the first lightweight wall layer 2 and the second lightweight wall layer 5 are not limited in this embodiment. The gaps in the light steel keel layer 3 are filled with sound-absorbing material 4, which can further improve the sound insulation effect of the wall. The thickness of the light steel keel layer 3 is 60mm, and the sum of the thicknesses of the first lightweight wall layer 2 and the second lightweight wall layer 5 is 140mm. The thickness of the first lightweight wall layer 2 is 50-90mm. Through the above arrangement, the best sound insulation and sound absorption effect can be achieved for mid-to-high frequency noise.

[0020] Example 2

[0021] like Figure 1 As shown, this embodiment is based on the above embodiment. Specifically, the material of the first lightweight wall layer 2 is modified gypsum hollow board, and the material of the second lightweight wall layer 5 is polystyrene particle sandwich panel. The selection of these two materials, when combined into a wall structure, can achieve a minimum sound insulation of 60dB for mid-to-high frequency noise above 800Hz. Furthermore, the sound insulation effect improves with increasing noise levels in Hertz, reaching 90dB at 3150Hz. In contrast, conventional modified gypsum hollow board and polystyrene particle sandwich panel wall structures can only achieve 49dB of sound insulation. This application significantly improves the sound insulation effect compared to these conventional structures.

[0022] Furthermore, the modified gypsum hollow core board has a thickness of 50mm and a density of 1050kg / m3, while the polystyrene particle sandwich panel has a thickness of 90mm and a density of 1120kg / m3. This wall structure achieves a weighted sound insulation Rw of 70dB when the pink noise correction value C is -2 and the traffic noise correction value Ctr is -7, thus achieving optimal sound insulation for mid-to-high frequency noise.

[0023] Example 3

[0024] This embodiment is based on the above embodiment. Specifically, the material of the first lightweight wall layer 2 is a slag hollow board, and the material of the second lightweight wall layer 5 is a polystyrene particle sandwich panel. The selection of these two materials, when combined into a panel wall structure, can achieve a minimum sound insulation of 55dB for mid-to-high frequency noise above 400Hz. Furthermore, the sound insulation effect improves with increasing noise levels in Hertz, reaching 75-90dB when the noise reaches 3150Hz.

[0025] Furthermore, the thickness of the ash hollow core slab is 80mm and the density is 1050kg / m3, while the thickness of the polystyrene particle sandwich panel is 60mm and the density is 1120kg / m3. This wall structure achieves a weighted sound insulation Rw of 65dB when the pink noise correction value C is -1 and the traffic noise correction value Ctr is -4, thus achieving optimal sound insulation for mid-to-high frequency noise.

[0026] Example 4

[0027] like Figure 1 As shown, this embodiment is based on the above embodiment, and cement mortar protective layers 1 are respectively provided on the outer side of the first lightweight wall layer 2 and the second lightweight wall layer 5.

[0028] Example 5

[0029] like Figure 1 As shown, this embodiment is developed based on the above embodiment to further improve the sound insulation effect. Specifically, the sound-absorbing material 4 is glass wool. Filling the space between the wall panel and the keel with glass wool can further improve the sound insulation performance.

[0030] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lightweight panel wall structure that blocks the absorption of mid-high frequency noise, characterized by: The wall comprises a first light wall layer (2), a light steel keel layer (3) and a second light wall layer (5) arranged in sequence, the light steel keel layer (3) is filled with sound-absorbing material (4), the thickness of the light steel keel layer (3) is 60mm, the sum of the thicknesses of the first light wall layer (2) and the second light wall layer (5) is 140mm, and the thickness of the first light wall layer (2) is 50-90mm; The material of the first light wall layer (2) is modified gypsum hollow board, and the material of the second light wall layer (5) is polyphenyl particle sandwich board. The outer side of the first light wall layer (2) and the second light wall layer (5) is respectively provided with a cement mortar protective layer (1). The sound-absorbing material (4) is glass wool.

2. A light weight panelled wall structure that absorbs mid-high frequency noise by barrier effect according to claim 1, characterized in that: The thickness of the modified gypsum hollow board is 50mm, and the density is 1050kg / m3, the thickness of the polyphenyl particle sandwich board is 90mm, and the density is 1120kg / m3.

3. The light weight panel wall structure that absorbs mid-high frequency noise according to claim 1, characterized in that: The material of the first light wall layer (2) is ash hollow board, and the material of the second light wall layer (5) is polyphenyl particle sandwich board.

4. The light weight panelled wall structure that absorbs mid-high frequency noise by barrier effect according to claim 3, characterized in that: The thickness of the ash hollow board is 80mm, and the density is 1050kg / m3, the thickness of the polyphenyl particle sandwich board is 60mm, and the density is 1120kg / m3.

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