Municipal road sound insulation wall

Abstract

The utility model discloses a municipal road sound insulation wall, which relates to the field of municipal engineering facilities, and adopts the technical scheme that the municipal road sound insulation wall comprises a base and a plurality of H-shaped upright posts fixed on the base, and further comprises sound insulation units arranged between every two adjacent H-shaped upright posts, the sound insulation unit comprises porous sound absorption plates and transparent sound insulation plates, the porous sound absorption plates and the transparent sound insulation plates are arranged between every two adjacent H-shaped stand columns, the number of the porous sound absorption plates is two along the upper side and the lower side of the sound insulation unit, the transparent sound insulation plates are arranged between the two porous sound absorption plates, and each porous sound absorption plate comprises a hollow inner cavity; a plurality of clamping grooves are formed in the porous sound-absorbing plate located in the inner cavity, and a sound-absorbing cotton layer is detachably clamped in at least one clamping groove. According to the sound insulation wall, the number or the types of the sound absorption cotton layers can be conveniently increased or decreased according to specific requirements of different noise environments, so that noise of different frequencies and intensities can be effectively handled, and the pertinence and the adaptability of the sound insulation wall are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to municipal engineering facility field, more specifically, it relates to a municipal road soundproof wall. BACKGROUND

[0002] Soundproof wall is also called sound barrier, and it is mainly used for sound insulation and noise reduction in traffic municipal facilities such as expressway, elevated composite road, urban light rail and subway, and the influence of traffic noise on nearby urban areas is controlled, and the soundproof wall can also be used for sound insulation and noise reduction of factories and other noise sources. However, with the acceleration of urbanization and the diversification of noise source characteristics, the traditional soundproof wall gradually shows certain limitations in design and application, for example: the sound insulation performance (such as sound insulation amount, frequency characteristic, etc.) of the traditional soundproof wall including the sound absorption board is determined before leaving the factory, and it is difficult to flexibly adjust according to the actual noise environment during the construction process, which limits the flexibility and adaptability of the soundproof wall when facing different noise environments.

[0003] Therefore, a new scheme needs to be proposed to solve this problem. CONTENT OF UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model aims at providing a municipal road soundproof wall, which can conveniently increase or reduce the number or type of sound-absorbing cotton layers according to the specific needs of different noise environments, so as to effectively cope with noise of different frequencies and intensities, and improve the pertinence and adaptability of the soundproof wall.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a municipal road soundproof wall, comprising a base and a plurality of H-shaped columns fixed on the base, further comprising a sound insulation unit arranged between every two adjacent H-shaped columns, the sound insulation unit comprises a porous sound absorption board and a transparent sound insulation board arranged between the two adjacent H-shaped columns, the porous sound absorption board is arranged on the upper and lower sides of the sound insulation unit, the transparent sound insulation board is arranged between the two porous sound absorption boards, the porous sound absorption board comprises a hollow inner cavity, a plurality of clamping grooves are arranged on the porous sound absorption board inside the inner cavity, and at least one sound-absorbing cotton layer is detachably clamped in the clamping groove.

[0006] In one embodiment, the porous sound absorption board is a frame-shaped metal plate member with an opening at the top and a hollow inside, the left and right sides of each H-shaped column are provided with longitudinal sliding grooves, the thickness of the frame-shaped metal plate member is adapted to the thickness of the longitudinal sliding grooves, the left and right sides of the frame-shaped metal plate member are slidably connected in the opposite two longitudinal sliding grooves, a plurality of sound absorption holes are arranged on the front wall and the rear wall of the frame-shaped metal plate member respectively, and a baffle is arranged obliquely downward above each sound absorption hole on the frame-shaped metal plate member.

[0007] In one of the embodiments, the transparent sound insulation board is a double-layer vacuum glass, and the thickness of the double-layer vacuum glass is adapted to the thickness of the longitudinal sliding groove of the H-shaped column.

[0008] In one of the embodiments, the inner cavity is formed in the frame-shaped metal member, the clamping grooves are formed between the left and right inner sidewalls of the frame-shaped metal member, the sound-absorbing cotton layer comprises a hard frame and sound-absorbing cotton fixedly connected to the inner side of the hard frame, and the left and right sides of the hard frame are detachably clamped in the opposite clamping grooves.

[0009] In one of the embodiments, the transparent sound insulation board is provided with a surrounding edge capable of covering part of the porous sound-absorbing board.

[0010] In one of the embodiments, a cover plate is arranged above the upper porous sound-absorbing board between the two adjacent H-shaped columns, and the upper end of the cover plate is bent towards the noise source.

[0011] In one of the embodiments, the bottom of the H-shaped column is fixed with a base, the base is provided with a connecting hole, the base is a concrete structure base, a bolt is pre-buried in the base, the base is arranged on the base, and a nut is connected to the bolt after passing through the connecting hole.

[0012] In conclusion, the utility model has the following beneficial effects: the upper and lower sound-absorbing boards and the transparent sound insulation board arranged between the two sound-absorbing boards form a structure of absorbing sound upwards and downwards and insulating sound in the middle, can effectively weaken the diffraction and reflection of noise, improve the sound insulation effect, and also provide an open field of vision environment; the sound-absorbing cotton layer is clamped in the clamping grooves in the sound-absorbing board, the number or type of the sound-absorbing cotton layer can be conveniently increased or reduced according to the specific needs of different noise environments, so that different frequency and intensity of noise can be effectively coped with, and the pertinence and adaptability of the sound insulation wall are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the municipal road sound insulation wall of the embodiment of the utility model;

[0014] Figure 2 It is an enlarged view of A part in Figure 1

[0015] Figure 3 It is a structural schematic view of the porous sound-absorbing board and the sound-absorbing cotton layer in the municipal road sound insulation wall of the embodiment of the utility model.

[0016] In the figure: 1, base; 2, H-shaped column; 21, base; 3, porous sound-absorbing board; 31, baffle; 32, clamping groove; 4, transparent sound insulation board; 41, surrounding edge; 5, cover plate; 6, nut; 7, bolt; 8, sound-absorbing cotton layer; 81, hard frame; 82, sound-absorbing cotton.​ Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1 to 3 As shown, an embodiment of this application provides a municipal road sound barrier, including a base 1 and a plurality of H-shaped columns 2 fixed on the base 1. The H-shaped columns 2 are made of commercially available H-shaped steel. It also includes a sound insulation unit disposed between every two adjacent H-shaped columns 2. The sound insulation unit includes a porous sound-absorbing panel 3 and a transparent sound insulation panel 4 disposed between two adjacent H-shaped columns 2. Two porous sound-absorbing panels 3 are arranged along the upper and lower sides of the sound insulation unit, and the transparent sound insulation panel 4 is disposed between two porous sound-absorbing panels 3. The porous sound-absorbing panel 3 includes a hollow inner cavity, and a plurality of slots 32 are provided on the porous sound-absorbing panel 3 inside the inner cavity. At least one of the slots 32 has a detachable sound-absorbing cotton layer 8.

[0019] When the aforementioned municipal road sound barrier is in operation, firstly, the porous sound-absorbing panel 3 absorbs noise through its pore structure and the air layer inside the cavity. Then, the sound-absorbing cotton layer 8 in the slot 32 further absorbs the remaining noise energy. At the same time, the transparent sound barrier 4 provides a good visual environment while blocking the transmission of noise.

[0020] In the above method, the two sound-absorbing panels set at the top and bottom and the transparent sound insulation panel 4 set between the two sound-absorbing panels form a structure of sound absorption at the top and bottom and sound insulation in the middle, which can effectively reduce the diffraction and reflection of noise, improve the sound insulation effect, and also provide a wide field of vision environment. By setting multiple slots 32 in the sound-absorbing panels and allowing sound-absorbing cotton layers 8 to be inserted into these slots 32, the number or type of sound-absorbing cotton layers 8 can be easily increased or decreased according to the specific needs of different noise environments, thereby effectively dealing with noise of different frequencies and intensities and improving the pertinence and adaptability of the soundproof wall.

[0021] In this embodiment, the porous sound-absorbing panel 3 is a frame-shaped sheet metal component with a hollow interior and an opening at the top. Each H-shaped column 2 has longitudinal grooves on both the left and right sides. The thickness of the frame-shaped sheet metal component is adapted to the thickness of the longitudinal grooves. The left and right sides of the frame-shaped sheet metal component are slidably connected in two opposite longitudinal grooves. Multiple sound-absorbing holes are respectively provided on the front and rear walls of the frame-shaped sheet metal component. A baffle 31 is obliquely arranged above each sound-absorbing hole on the frame-shaped sheet metal component.

[0022] In the above manner, the porous sound-absorbing plate 3 is provided as a frame-shaped metal member with a hollow interior and an opening at the top, which makes the sound insulation unit more modular, and each frame-shaped metal member can be independently manufactured and transported, and then connected through sliding on the left and right sides in the longitudinal sliding groove of the H-shaped stand column 2 on site, greatly simplifying the installation process and improving construction efficiency. The plurality of sound-absorbing holes provided on the front wall and the rear wall of the frame-shaped metal member can effectively absorb and consume sound wave energy, and the baffle 31 obliquely downwardly provided above each sound-absorbing hole further guides the propagation path of the sound wave, so that the sound wave is reflected and scattered multiple times when passing through the sound-absorbing hole, thereby enhancing the sound insulation effect, and the baffle 31 also has the effect of blocking rainwater, so that the sound-absorbing cotton layer 8 is not easily soaked by rainwater.

[0023] In the present embodiment, the transparent sound insulation plate 4 is a double-layer vacuum glass, and the thickness of the double-layer vacuum glass is adapted to the thickness of the longitudinal sliding groove of the H-shaped stand column 2. The double-layer vacuum glass can effectively reduce the propagation and reflection of sound waves in the glass, thereby facilitating the improvement of sound insulation performance.

[0024] In the present embodiment, the inner cavity is formed in the frame-shaped metal member, the clamping groove 32 is formed between the left and right inner side walls of the frame-shaped metal member, the sound-absorbing cotton layer 8 includes a hard frame 81 and sound-absorbing cotton 82 fixedly connected to the inner side of the hard frame 81, and the left and right sides of the hard frame 81 are detachably clamped in the opposite two clamping grooves 32. The hard frame 81 of the sound-absorbing cotton layer 8 not only provides stable support for the sound-absorbing cotton 82, but also ensures the close fit between the sound-absorbing cotton 82 and the frame-shaped metal member, reducing the reflection and leakage of sound waves on the contact surface.

[0025] In the present embodiment, the transparent sound insulation plate 4 is provided with a surrounding edge 41 that can partially cover the porous sound-absorbing plate 3.

[0026] In the present embodiment, a cover plate 5 is provided above the upper porous sound-absorbing plate 3 between the two adjacent H-shaped stand columns 2, and the cover plate 5 is specifically connected to the H-shaped stand column 2 through bolts, and the upper end of the cover plate 5 is bent towards the noise generation position. The provision of the cover plate 5 further blocks the propagation path of the noise, and especially when the upper end of the cover plate 5 is bent towards the noise generation position, it can more effectively deflect the noise upwards, reducing the possibility of the noise penetrating the sound insulation wall directly and propagating to the two sides.

[0027] In the embodiment, the bottom of the H-shaped column 2 is fixed with a base 21, the base 21 is provided with a connecting hole, the base 1 is a concrete structure base, a bolt 7 is pre-buried in the base 1, the base 21 is arranged on the base 1, and the bolt 7 is connected with a nut 6 after penetrating through the connecting hole. The H-shaped column 2 is the main supporting structure of the sound insulation wall, and the stability of the H-shaped column 2 is crucial to the performance of the whole sound insulation wall. By fixing the base 21 on the concrete structure base and fastening connection by using the pre-buried bolt 7 and the nut 6, the stable connection between the H-shaped column 2 and the base 1 can be ensured.

[0028] The implementation principle of the above municipal road sound insulation wall is as follows: the base 1 of the target position is first poured into a concrete structure, and the bolt 7 is pre-buried; then the H-shaped column 2 is installed and fixed on the base 1 according to the construction requirement; then the target number of sound-absorbing cotton layers 8 are clamped into the clamping groove 32 of the porous sound-absorbing plate 3, one of the porous sound-absorbing plates 3 is slid into the lower side of the sound insulation unit along the longitudinal sliding groove of the H-shaped column 2, then the transparent sound insulation plate 4 is slid in, and the surrounding edge 41 of the transparent sound insulation plate 4 partially covers the porous sound-absorbing plate 3, so as to achieve the purpose of sealing the porous sound-absorbing plate 3; then another sound-absorbing plate is installed on the upper side of the sound insulation unit and abuts tightly with the transparent sound insulation plate 4; finally, the cover plate 5 is fixed between the two adjacent H-shaped columns 2 by means of bolt or welding.

[0029] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above embodiments. Any technical solution falling within the concept of the present application belongs to the protection scope of the present application. It should be noted that, for ordinary skilled persons in the technical field, some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. A municipal road soundproof wall, comprising a base (1) and a plurality of H-shaped columns (2) fixed on the base (1), and further comprising a soundproof unit arranged between every two adjacent H-shaped columns (2), characterized in that: The sound insulation unit comprises porous sound absorption plates (3) and transparent sound insulation plates (4) arranged between two adjacent H-shaped columns (2), the porous sound absorption plates (3) are arranged on the upper and lower sides of the sound insulation unit, the transparent sound insulation plates (4) are arranged between the two porous sound absorption plates (3), the porous sound absorption plate (3) comprises a hollow inner cavity, a plurality of clamping grooves (32) are arranged on the porous sound absorption plate (3) inside the inner cavity, and at least one sound absorption cotton layer (8) is detachably clamped in the clamping groove (32).

2. The municipal sound barrier wall of claim 1, wherein: The porous sound absorption plate (3) is a frame-shaped metal plate member with an opening at the top, the left and right sides of each H-shaped column (2) are provided with longitudinal sliding grooves, the thickness of the frame-shaped metal plate member is adapted to the thickness of the longitudinal sliding grooves, the left and right sides of the frame-shaped metal plate member are slidably connected in the opposite longitudinal sliding grooves, a plurality of sound absorption holes are arranged on the front wall and the rear wall of the frame-shaped metal plate member, respectively, and a baffle (31) is arranged on the frame-shaped metal plate member above each sound absorption hole and inclined downward.

3. The municipal sound barrier wall of claim 2, wherein: The transparent sound insulation plate (4) is double-layer vacuum glass, and the thickness of the double-layer vacuum glass is adapted to the thickness of the longitudinal sliding grooves of the H-shaped column (2).

4. The municipal sound barrier wall of claim 2, wherein: The inner cavity is formed in the frame-shaped metal plate member, the clamping grooves (32) are formed between the left and right inner side walls of the frame-shaped metal plate member, the sound absorption cotton layer (8) comprises a hard frame (81) and sound absorption cotton (82) fixedly connected to the inner side of the hard frame (81), and the left and right sides of the hard frame (81) are detachably clamped in the opposite clamping grooves (32).

5. The municipal sound barrier wall of claim 1, wherein: The transparent sound insulation plate (4) is provided with a surrounding edge (41) capable of partially covering the porous sound absorption plate (3).

6. The municipal sound barrier wall of claim 1, wherein: A cover plate (5) is arranged above the upper porous sound absorption plate (3) between the two adjacent H-shaped columns (2), and the upper end of the cover plate (5) is bent towards the noise source.

7. The municipal sound barrier wall of claim 1, wherein: The bottom of the H-shaped column (2) is fixed with a base (21), the base (21) is provided with a connecting hole, the base (1) is a concrete structure base, a bolt (7) is pre-buried in the base (1), the base (21) is arranged on the base (1), and the bolt (7) is connected with a nut (6) after penetrating through the connecting hole.

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