阅读说明：本技术 一种直立声屏障及其顶部结构 (Upright sound barrier and top structure thereof ) 是由 胡胜 陈炜 曹浩 卢铃 彭继文 周舟 于 2021-09-22 设计创作，主要内容包括：本发明公开了一种直立声屏障及其顶部结构,旨在提升声屏障的隔声降噪效果。为此,本发明实施例一方面提供的直立声屏障顶部结构,包括同轴设置的外筒和内筒,所述外筒和所述内筒均由微穿孔板制作而成,所述内筒和所述外筒之间形成有一环形空腔,所述外筒、所述内筒和所述环形空腔构成一微穿孔板吸声结构；所述内筒内竖直设有一轴向对半分隔所述环形空腔的第一隔声材料层,所述内筒内竖直设有一轴向对半分隔其内腔的第二隔声材料层。(The invention discloses an upright sound barrier and a top structure thereof, aiming at improving the sound insulation and noise reduction effects of the sound barrier. Therefore, the top structure of the vertical sound barrier provided by the embodiment of the invention comprises an outer cylinder and an inner cylinder which are coaxially arranged, wherein the outer cylinder and the inner cylinder are both made of micro-perforated plates, an annular cavity is formed between the inner cylinder and the outer cylinder, the inner cylinder and the annular cavity form a micro-perforated plate sound absorption structure; a first sound insulation material layer axially dividing the annular cavity in half is vertically arranged in the inner cylinder, and a second sound insulation material layer axially dividing the inner cavity in half is vertically arranged in the inner cylinder.)

1. An upright sound barrier roof construction characterized by: the sound absorption structure comprises an outer cylinder (1) and an inner cylinder (2) which are coaxially arranged, wherein the outer cylinder (1) and the inner cylinder (2) are both made of micro-perforated plates, an annular cavity (3) is formed between the inner cylinder (2) and the outer cylinder (1), the inner cylinder (2) and the annular cavity (3) form a micro-perforated plate sound absorption structure;

a first sound insulation material layer (4) axially dividing the annular cavity (3) in half is vertically arranged in the inner cylinder (2), and a second sound insulation material layer (5) axially dividing the inner cavity of the inner cylinder in half is vertically arranged in the inner cylinder (2).

2. The upright sound barrier roof construction of claim 1, wherein: the thickness of the micro-perforated plate is 0.5 mm-1.5 mm, and the perforation rate is 1% -3%.

3. The upright sound barrier roof construction of claim 1, wherein: the micro-perforated plate is made of an aluminum plate or an iron plate.

4. The upright sound barrier roof construction of claim 1, wherein: the bottom of the outer barrel (1) is provided with a mounting seat (6).

5. The upright sound barrier roof construction of claim 1, wherein: the first sound insulation material layer (4) and the second sound insulation material layer (5) respectively comprise a mounting frame (7) and a sound insulation material (8) filled in the mounting frame (7).

6. An upright sound barrier roof construction, according to any one of claims 1-5, wherein: two ends of the outer cylinder (1) are respectively sealed by an end cover (9).

7. The upright sound barrier roof construction of claim 6, wherein: and a supporting framework (10) for supporting the outer cylinder (1) and the inner cylinder (2) is connected between the two end covers (9).

8. The upright sound barrier roof construction of claim 7, wherein: the outer cylinder (1) and the inner cylinder (2) are respectively welded on the corresponding supporting frameworks (10).

9. The upright sound barrier roof construction of claim 5, wherein: the thicknesses of the first sound insulation material layer (4) and the second sound insulation material layer (5) are controlled to be 1-20 mm.

10. An upright sound barrier comprising an upright screen body and an upright sound barrier roof structure according to any one of claims 1-9, wherein: the upright sound barrier top structure is horizontally mounted on top of the upright screen body.

Technical Field

The invention relates to the technical field of environmental engineering, in particular to an upright sound barrier and a top structure thereof.

Background

The sound barrier is the most common measure for the outdoor noise source treatment of the transformer substation, the materials of the sound barrier are brick walls, steel structures and composite structures, the setting mode of the sound barrier is flexible and various, the sound barrier can be independently arranged near the noise source, and the sound barrier can also be arranged by combining with a fence of the transformer substation. Generally, the top of the vertical sound barrier has larger sound wave diffraction, so that the noise reduction effect of the sound barrier is poor. Therefore, in order to reduce the diffraction effect of the sound barrier, the top portion can be designed to be T-shaped, Y-shaped or cylindrical. However, the conventional top structure still has the problem of poor diffraction suppression effect.

In view of the above, there is a need for improvements in the prior art.

Disclosure of Invention

The invention mainly aims to provide an upright sound barrier and a top structure thereof, aiming at improving the sound insulation and noise reduction effects of the sound barrier.

Therefore, the top structure of the vertical sound barrier provided by the embodiment of the invention comprises an outer cylinder and an inner cylinder which are coaxially arranged, wherein the outer cylinder and the inner cylinder are both made of micro-perforated plates, an annular cavity is formed between the inner cylinder and the outer cylinder, the inner cylinder and the annular cavity form a micro-perforated plate sound absorption structure;

a first sound insulation material layer axially dividing the annular cavity in half is vertically arranged in the inner cylinder, and a second sound insulation material layer axially dividing the inner cavity in half is vertically arranged in the inner cylinder.

Specifically, the thickness of the micro-perforated plate is 0.5 mm-1.5 mm, and the perforation rate is 1% -3%.

Specifically, the micro-perforated plate is made of an aluminum plate or an iron plate

Specifically, the bottom of the outer barrel is provided with a mounting seat.

Specifically, the first sound insulation material layer and the second sound insulation material layer respectively comprise a mounting frame and a sound insulation material filled in the mounting frame.

Specifically, two ends of the outer cylinder are respectively sealed by an end cover.

Specifically, a supporting framework for supporting the outer cylinder and the inner cylinder is connected between the two end covers.

Specifically, the outer cylinder and the inner cylinder are respectively welded on the corresponding support frameworks.

Specifically, the thickness of the first sound insulation material layer and the thickness of the second sound insulation material layer are controlled to be 1-20 mm.

According to another aspect of the embodiments of the present invention, there is provided a vertical sound barrier, comprising a vertical screen body and the above-mentioned vertical sound barrier top structure, wherein the vertical sound barrier top structure is horizontally installed on the top of the vertical screen body.

Compared with the prior art, at least one embodiment of the invention has the following beneficial effects: the micropunch plate sound absorption structure formed by the outer cylinder, the inner cylinder and the annular cavity has a better low-frequency noise reduction effect compared with porous sound absorption materials, and the sound insulation material layer arranged in the middle of the annular cavity and the inner cylinder can effectively dissipate the sound wave energy entering the annular cavity and the inner cylinder, so that the sound wave can not be diffracted and pass through the sound barrier screen. In addition, the low-frequency noise reduction effect is further enhanced through the design of the double-layer micro-perforated cylinder.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an isometric view of an upright sound barrier roof construction provided by an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a top structure of an upright sound barrier provided by an embodiment of the present invention;

wherein: 1. an outer cylinder; 2. an inner barrel; 3. an annular cavity; 4. a first sound insulation material layer; 5. a second sound insulation material layer; 6. a mounting seat; 7. a mounting frame; 8. a sound insulating material; 9. an end cap; 10. and supporting the framework.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 and 2, a vertical sound barrier top structure, urceolus 1 and inner tube 2 including coaxial setting, wherein, urceolus 1 and inner tube 2 are formed by the preparation of microperforated panel, be formed with an annular cavity 3 between inner tube 2 and the urceolus 1, inner tube 2 and annular cavity 3 constitute a microperforated panel sound-absorbing structure, the vertical first sound insulating material layer 4 that separates annular cavity 3 to half in the axial that is equipped with in the inner tube 2, the vertical second sound insulating material layer 5 that separates its inner chamber to half in the axial that is equipped with in the inner tube 2, first sound insulating material layer 4 separates annular cavity 3 to two semi-annular cavities, second sound insulating material layer 5 separates the inner chamber of inner tube 2 for two semi-circular inner chambers.

In this embodiment, the microperforated panel sound absorbing structure that urceolus 1, inner tube 2 and toroidal cavity 3 constitute compares porous sound absorbing material's low frequency noise reduction effect better, arranges the sound insulating material layer in the middle of toroidal cavity 3 and inner tube 2 simultaneously, can effectively dissipate the sound wave energy that gets into, finally makes the sound wave can't pass through from diffraction of sound barrier screen top. In addition, the design of the double-layer micro-perforated cylinder body further enhances the low-frequency noise reduction effect.

In some embodiments, to facilitate the mounting of the roof structure, a mounting seat 6 is provided at the bottom of the outer tube 1, and bolt holes are provided in the mounting seat 6, through which bolts are passed to securely mount the roof structure on top of the upright sound barrier.

Referring to fig. 1 and 2, it should be explained that, in an actual design, the microperforated panel may be made of an aluminum plate or an iron plate, each of the first sound insulation material layer 4 and the second sound insulation material layer 5 includes an installation frame 7 and a sound insulation material 8 filled in the installation frame 7, wherein the sound insulation material 8 may be made of glass wool, hemp wool felt, organic fiber material, rock wool, mineral wool, polystyrene foam plastic or damping sound insulation material modified by rubber, plastic, rubber and plastic, and is an existing material, and details are not described herein.

It can be understood that in practical application, the thickness of the micro-perforated plate can be controlled to be 0.5 mm-1.5 mm, the perforation rate can be controlled to be 1% -3%, the diameter of the outer cylinder 1 can be controlled to be 0.2-1 m, the diameter of the inner cylinder 2 can be controlled to be 0.1-0.5 m, the thicknesses of the first sound insulation material layer 4 and the second sound insulation material layer 5 can be controlled to be 1 mm-20 mm, and the outer cylinder 1 and the inner cylinder 2 can be rolled by adopting a rolling process.

In the embodiment, the outer cylinder 1 is made of aluminum alloy, the thickness of the outer cylinder is 1mm, the perforation rate is 2%, and the diameter is 0.5 m; the inner cylinder 2 is made of aluminum alloy, the thickness of the inner cylinder is 1mm, the perforation rate is 1%, and the diameter is 0.25 m; the sound insulation material 8 is made of rubber and plastic foaming modified sound insulation material, and the thickness of the sound insulation material is 10 mm.

Referring to fig. 1 and 2, in some embodiments, two ends of the outer cylinder 1 are respectively sealed by an end cover 9, a supporting framework 10 for supporting the outer cylinder 1 and the inner cylinder 2 is disposed between the two end covers 9, the outer cylinder 1 and the inner cylinder 2 are respectively welded on the corresponding supporting framework 10, two ends of the supporting framework 10 are respectively welded and fixed with the two end covers 9, two ends of the mounting frame 7 of the first sound insulation material layer 4 are respectively welded and fixed with the inner annular wall and the outer annular wall of the annular cavity 3, and two ends of the mounting frame 7 of the second sound insulation material layer 5 are respectively welded and fixed on two opposite position points on the inner wall of the inner cylinder 2. Wherein, the material of supporting framework 10 and installation frame 7 can adopt steel sheet, iron plate, aluminum plate or aluminum alloy plate, and mount pad 6 can adopt channel-section steel, square pipe or pipe preparation.

In another aspect, the present application also provides an upright sound barrier comprising an upright screen body and a roof structure according to the above embodiments, the roof structure being horizontally and fixedly mounted on top of the upright screen body. Because the upright sound barrier provided by the application adopts the top structure related to the above embodiment, the upright sound barrier at least has the advantages and effects of the top structure of the above embodiment, and details are not described herein.

Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.

Meanwhile, if the invention as described above discloses or relates to parts or structural members fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated. Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.

The above examples are merely illustrative for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.