Sound insulation barrier

Abstract

The utility model provides a sound insulation barrier, and belongs to the technical field of noise treatment equipment. Modular wind resistant columns, each modular wind resistant column comprising a plurality of anchoring members, a plurality of vertically stacked modules, and a plurality of connecting members; the anchoring component is used for detachably connecting the modular wind-resistant column to the base, and the connecting component is used for mutually connecting a plurality of modules; at least one side of each module is connected with a purline; a plurality of hanging buckles are arranged on one side of the sound insulation panel, and the hanging buckles are connected with the purline in a hanging mode; the sound insulation panel comprises a plurality of mutually lapped sound insulation plates, lapping steps are arranged on two opposite sides of each sound insulation plate, two adjacent sound insulation plates are lapped through the lapping steps, the total thickness of the lapping steps on the two sides is smaller than the thickness of the sound insulation plates, and gaps between the lapping steps are blocked by sealing rubber strips on the lapping steps. According to the utility model, all the components are detachably connected with one another, can be quickly mounted or dismounted, and can be reassembled for repeated use after being dismounted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to noise control equipment technical field, more specifically, relate to a sound barrier. BACKGROUND

[0002] The sound barrier is a sound insulation facility, which is usually arranged between a noise source and an external environment or a sound sensitive target to block or reduce the adverse effects of noise on the external environment or the sound sensitive target.

[0003] Sometimes, some sudden noise sources need to be quickly treated in engineering practice, such as a transformer substation with residential areas scattered around. During the trial operation and acceptance, it is found that the noise of a certain device exceeds the limit value of the design requirement. The noise emission exceeds the limit value, causing the noise at the factory boundary and sensitive points to exceed the limit value, affecting the environmental protection acceptance of the transformer substation, and even causing residents to complain. At this time, temporary noise treatment is needed to ensure the smooth progress of environmental protection acceptance, stabilize the emotions of residents, and gain time for debugging the sound source device or building a permanent sound barrier. In this application scenario, a sound barrier that can be quickly installed and removed is needed. In some construction scenarios, such as power transmission line construction, the construction points are concentrated in the tower positions and tension fields. The construction time of a point is about two months. A construction unit usually needs to be responsible for the construction of multiple points, and the construction of multiple points is carried out in sequence. In this application scenario, a sound barrier that can be quickly installed and removed and can be reused is also needed.

[0004] The existing sound insulation barrier is mostly permanent, such as the sound insulation barrier arranged at the factory boundary of an industrial enterprise or on both sides of a traffic line. The sound insulation barrier uses reinforced concrete to arrange a foundation under the ground, uses a steel structure to bear the wind load of an upper structure, and reasonably selects a section form of the steel structure to provide a "clamping groove" for installation of a sound insulation board. The sound insulation board is clamped into the "clamping groove" to complete the installation. The permanent sound insulation barrier has disadvantages in construction period and reusability. In terms of construction period, the construction period of the permanent sound insulation barrier is relatively long, and the decisive factors are two aspects. One is foundation construction. The strength of the reinforced concrete structure must go through a fixed construction process and a curing period, so the construction period is relatively long, usually more than two months. The other is sound insulation board installation. The main feature of the current sound insulation board installation is "clamping". That is, a hoisting machine is used to hoist the sound insulation board to the top end of the steel structure "clamping groove", manual guiding is performed on the sound insulation board into the "clamping groove", the sound insulation board is stacked layer by layer in the "clamping groove", and a fastener is used to clamp the sound insulation board in the "clamping groove". The installation process involves man-machine cooperation, and the lower sound insulation board needs to be placed in the "clamping groove" for a long distance. In the process, it is inevitable to be clamped and needs to be adjusted repeatedly. Therefore, the overall installation efficiency is not high. In terms of reusability, when the sound insulation board is installed, the sound insulation board needs to be adjusted by external force after being clamped. When the sound insulation board is disassembled, the sound insulation board needs to be disassembled by cooperation of a crowbar and a hoisting machine. In the above operation, the sound insulation board is easily damaged, and the disassembly process is less efficient than the installation process, resulting in poor reusability of the sound insulation barrier.

[0005] Since the existing permanent sound insulation barrier cannot be applied to noise reduction application scenarios with rapid response requirements and construction site noise reduction application scenarios with high turnover requirements, it is necessary to design a sound insulation barrier which can be quickly installed and disassembled and reused to adapt to the requirements of the two application scenarios. Content of the utility model

[0006] The utility model aims at providing a sound insulation barrier which can be quickly installed and disassembled and reused to adapt to noise reduction application scenarios with rapid response requirements or construction site noise reduction application scenarios with high turnover requirements.

[0007] To achieve the above-mentioned purpose, the utility model provides a sound insulation barrier, which comprises:

[0008] a base;

[0009] a plurality of anchoring members, a plurality of vertically stacked modules and a plurality of connecting members; the anchoring members are used for detachably connecting the modular wind-resistant column to the base, and the connecting members are used for connecting adjacent modules to each other; at least one side of each module is connected with a purlin; and

[0010] The sound insulation panel comprises a plurality of mutually overlapped sound insulation panels, four edges of each sound insulation panel are provided with an overlapping step, two adjacent sound insulation panels are overlapped through the overlapping steps, and the total thickness of the two side overlapping steps is less than the thickness of the sound insulation panel; one side of the sound insulation panel is provided with a plurality of hooks, and the plurality of hooks are hung on the purlin.

[0011] Further, a sealing rubber strip is arranged at the overlapping step to seal the gap formed by the total thickness of the two side overlapping steps being less than the thickness of the sound insulation panel.

[0012] Further, a plurality of nuts are arranged on each hook, a plurality of screw rods are connected to the purlin and pass through the long round holes, and the nuts are screwed on the screw rods.

[0013] Further, among the six surfaces of the module, two opposite sides in the vertical direction and parallel to the sound insulation panel are connected with two purlins arranged above and below, and the plurality of screw rods on the two purlins on the same side are symmetrically arranged.

[0014] Further, a plurality of groups of embedded bolts are arranged on the base, the anchoring member comprises a bottom plate and an angle steel which are connected with each other, the bottom plate is connected with the base through the embedded bolts, and a plurality of first bolt holes are arranged on the angle steel, and the angle steel is bolted with the bottommost module through the plurality of first bolt holes.

[0015] Further, the plurality of first bolt holes are arranged on the first side surface and the second side surface of the angle steel respectively, and the height of the first bolt hole located on the first side surface is different from that of the first bolt hole located on the second side surface.

[0016] Further, the connecting member is an angle steel, a plurality of second bolt holes are arranged on the connecting member, and two adjacent modules are bolted with the connecting member through the plurality of second bolt holes.

[0017] Further, the plurality of second bolt holes are arranged on the third side surface and the fourth side surface of the connecting member respectively, and the height of the second bolt hole located on the third side surface is different from that of the second bolt hole located on the fourth side surface.

[0018] Further, the module is in the shape of a cuboid frame, the module comprises a plurality of angle steels which are connected with each other perpendicularly, and the adjacent angle steels are welded through steel plates.

[0019] Further, among the six surfaces of the module, two opposite surfaces in the vertical direction and perpendicular to the sound insulation panel are further welded with reinforcing angle steels.

[0020] Compared with the prior art, the sound insulation panel has the following technical effects:

[0021] The base, the modular wind-resistant column and the sound insulation panel of the sound barrier are detachably connected with each other, the modular wind-resistant column is assembled by a plurality of detachable modules, and the sound insulation panel is also assembled by a plurality of detachable sound insulation panels. The various components of the sound barrier are detachably connected with each other, can be quickly installed or detached, and can be reassembled for reuse after being detached, so that the sound barrier can be applied to a noise reduction application scene with a quick response requirement or a construction site noise reduction application scene with a high turnover requirement.

[0022] The modular wind-resistant column of the sound barrier comprises a plurality of prefabricated standard modules, a single module does not need to be assembled on site, the module structure is simple, the workload of steel structure installation is greatly reduced, and the construction efficiency is improved.

[0023] The sound insulation panel of the sound barrier can be quickly installed or detached by being hung downward or pulled upward on the purlin, so that the installation and disassembly efficiency of the sound insulation panel is greatly improved. The installation or disassembly process of the sound insulation panel can be mainly completed by manual work, damage of the sound insulation panel in the mechanical installation or disassembly process is avoided, and the sound insulation panel is conducive to repeated use.

[0024] The sound insulation panel of the sound barrier is provided with a lap step on four edges, and a sealing rubber strip is arranged on the lap step. The lap step can avoid the formation of a through gap between adjacent sound insulation panels to cause sound leakage, and the sealing rubber strip further seals the gap formed at the lap joint of the adjacent sound insulation panels, so that the sound insulation effect of the sound barrier is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 A schematic diagram of the overall structure of the sound barrier provided by the embodiments of the present application is shown in the figure.

[0027] Figure 2 A schematic diagram of the connection structure of the base and an anchoring member provided by the embodiments of the present application is shown in the figure.

[0028] Figure 3 A schematic diagram of the structure of the connecting member provided by the embodiments of the present application is shown in the figure.

[0029] Figure 4 A schematic diagram of the overall structure of a module provided by the embodiments of the present application is shown in the figure.

[0030] Figure 5 A face structure schematic diagram of Figure 4 ;

[0031] Figure 6 B face structure schematic diagram of Figure 4 ;

[0032] Figure 7 C face structure schematic diagram of Figure 4 ;

[0033] Figure 8 Structure schematic diagram of sound insulation board provided by the embodiment of the utility model;

[0034] Figure 9 Structure schematic diagram of two sound insulation boards adjacent up and down are hung on purline provided by the embodiment of the utility model;

[0035] Figure 10 Pictorial structure schematic diagram of single hanging buckle in Figure 9 ;

[0036] Figure 11 Side view structure schematic diagram of Figure 10 .

[0037] In the drawings, various reference signs indicate:

[0038] 1, base, 2, modular wind-resistant column, 3, sound insulation panel, 4, nut, 301, sound insulation board, 1-1, embedded bolt, 2-1, anchoring member, 2-2, connecting member, 2-3, module, 2-4, purline, 2-5, screw rod, 3-1, hanging buckle, 3-2, lap step, 3-3, sealing rubber strip, 3-4, long circular hole. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model more clearly understood, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the terms "length", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0042] The terms used in the embodiments of the present application are merely for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0043] The terms "first", "second" are only for the purpose of description, used to distinguish objects such as substances from each other, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. For example, without departing from the scope of the embodiments of the present application, the first XX can also be referred to as the second XX, and similarly, the second XX can also be referred to as the first XX. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0044] Please refer to Figures 1-11 , now a sound barrier provided by the embodiments of the present application will be described.

[0045] In an embodiment of the present application, the sound barrier of the embodiments of the present application comprises a base 1, a modular wind-resistant column 2 and a sound insulation panel 3, as shown in Figure 1 . Each modular wind-resistant column 2 comprises a plurality of anchoring members 2-1, a plurality of vertically stacked modules 2-3 and a plurality of connecting members 2-2; the anchoring members 2-1 are used to detachably connect the modular wind-resistant column 2 to the base 1, as shown in Figure 2 . The connecting members 2-2 are used to connect two adjacent modules 2-3 to each other; at least one side of each module 2-3 is connected with a purlin 2-4, as shown in Figure 1 、 Figure 4 、 Figure 7 . The sound insulation panel 3 is provided with a plurality of hooks 3-1 on one side, and the hooks 3-1 are hooked with the purlin 2-4, as shown in Figure 8 、 Figures 9-11 . The sound insulation panel 3 comprises a plurality of sound insulation panels 301 which are overlapped with each other, and each sound insulation panel 301 is provided with a lapping step 3-2 on four edges, and two adjacent sound insulation panels 301 are overlapped through the lapping steps 3-2, and the total thickness of the lapping steps 3-2 on both sides is less than the thickness of the sound insulation panel 301, as shown in Figure 9 .

[0046] In the embodiment, the base 1 is a prefabricated base, without the need for on-site construction, omitting the foundation construction process, and greatly accelerating the construction period of the sound barrier. Each modular wind-resistant column 2 is provided with an anchoring member 2-1 at each of the four corners. The sound barrier panel 301 is provided with four hanging buckles 3-1, which can be welded on the sound barrier panel 301. To ensure reliable connection of the hanging buckle 3-1 and the sound barrier panel 301, the hanging buckle 3-1 should be welded on the main ridge of the sound barrier panel 301.

[0047] The base 1, the modular wind-resistant column 2 and the sound barrier panel 3 of the sound barrier of the embodiment are detachably connected with each other, the modular wind-resistant column 2 is assembled by a plurality of detachably connected modules 2-3, and the sound barrier panel 3 is also assembled by a plurality of detachably connected sound barrier panels 301. The various components of the sound barrier of the embodiment are detachably connected with each other, can be quickly installed or detached, and can be reassembled for reuse after being detached, so that the sound barrier can be applied to noise reduction application scenarios with quick response requirements or construction site noise reduction application scenarios with high turnover requirements.

[0048] The sound barrier of the embodiment is a sound barrier unit, which can be connected with each other according to the size of the construction site during use, so that the noise source is in the sound barrier formed by the plurality of sound barrier units.

[0049] The modular wind-resistant column 2 of the sound barrier of the embodiment comprises a plurality of prefabricated standard modules 2-3, and the purline 2-4 for installing the sound barrier panel 3 can be integrally welded with the module 2-3 during the module 2-3 processing stage, without the need for on-site assembly.

[0050] The sound barrier panel 3 of the sound barrier of the embodiment can be quickly installed or detached by being hung downward or pulled upward on the purline 2-4, greatly improving the installation and disassembly efficiency of the sound barrier panel 3. The installation or disassembly process of the sound barrier panel 3 can be mainly completed by manual work, avoiding damage to the sound barrier panel 3 in the mechanical installation or disassembly process, and being conducive to the reuse of the sound barrier panel 3.

[0051] The sound barrier panel 301 of the sound barrier of the embodiment is provided with a lap joint step 3-2 on four edges, and the lap joint step 3-2 can also be arranged around the sound barrier panel 301. The thickness at the lap joint step 3-2 is generally half of the thickness of the sound barrier panel 301 minus 0.5 cm. In this way, the lap joint area of two adjacent sound barrier panels 301 will form a 1 cm gap, providing a certain tolerance for the installation of the sound barrier panel 301 in the vertical direction of the sound barrier. The arrangement of the lap joint step 3-2 can avoid the formation of an installation through slit between adjacent sound barrier panels 301, thereby ensuring the sound insulation effect of the sound barrier.

[0052] Further, the soundproof board 301 of the embodiment is provided with a sealing rubber strip 3-3 at the lap joint step 3-2, as shown in Figure 8 、 Figure 9 The sealing rubber strip 3-3 can seal the gap formed at the lap joint of adjacent soundproof boards 301, further preventing sound leakage.

[0053] Further, the soundproof barrier of the embodiment further comprises a plurality of nuts 4, each of the hanging buckles 3-1 is provided with an oblong hole 3-4, the purlin 2-4 is connected with a plurality of screw rods 2-5 penetrating through the oblong hole 3-4, and the nut 4 is screwed on the screw rod 2-5, as shown in Figures 9-11 The screw rod 2-5 can be welded on the purlin 2-4. The oblong hole 3-4 provides a channel for the screw rod 2-5 to penetrate through the hanging buckle 3-1, and provides a certain tolerance in the axial direction of the soundproof barrier during the installation of the soundproof board 301; the four hanging buckles 3-1 need to be buckled on the purlin 2-4, of which the upper two hanging buckles 3-1 penetrate through the screw rod 2-5 and are fixed with the screw rod 2-5 by means of a gasket and a nut 4. In order to ensure the smooth connection of the hanging buckle 3-1 with the purlin 2-4, the position of the hanging buckle 3-1 should also match the spacing of the modular wind-resistant column 2, the size of the purlin 2-4, and the position of the screw rod 2-5 on the purlin 2-4.

[0054] Further, of the six faces of the module 2-3, the opposite two sides in the vertical direction and parallel to the soundproof panel 3 are each connected with two upper and lower purlins 2-4, and a plurality of screw rods 2-5 on the upper and lower purlins 2-4 on the same side are symmetrically arranged, as shown in Figure 4 、 Figure 7 Thus, during the installation process, no matter how the module 2-3 is placed, it can be ensured that the side of the module 2-3 connected with the soundproof panel 3 is provided with a purlin 2-4 for cooperating with the hanging buckle 3-1, and the purlin 2-4 is connected with an upward screw rod 2-5 for penetrating through the oblong hole 3-4. This design structure makes it unnecessary to consider the front and rear side placement direction of the module 2-3 during the installation process, and only needs to ensure that a plurality of modules 2-3 can be aligned and stacked in the vertical direction, which simplifies the installation process and improves the installation efficiency of the modular wind-resistant column 2.

[0055] Further, the base 1 is provided with a plurality of pre-buried bolts 1-1, the anchoring member 2-1 comprises a bottom plate and an angle steel connected with each other, the bottom plate is connected with the base 1 through the pre-buried bolts 1-1; a plurality of first bolt holes are formed on the angle steel, and the angle steel is bolted with the module 2-3 through the first bolt holes, as shown in Figure 2 、 Figure 6 、 Figure 7The base 1 of the embodiment includes four groups of embedded bolts 1-1, and each group of embedded bolts 1-1 is arranged at a position corresponding to a corner of the modular wind-resistant column 2. The modular wind-resistant column 2 includes four anchoring members 2-1, and the base 1 is connected to the bottom corners of the modular wind-resistant column 2 through the embedded bolts 1-1. The four embedded bolts 1-1 are bolted to the bottom plate of the anchoring member 2-1, and the positions of the embedded bolts 1-1 should match the size of the module 2-3, the size of the bottom plate of the anchoring member 2-1, and the position of the opening on the bottom plate of the anchoring member 2-1.

[0056] Further, in the embodiment, a plurality of first bolt holes are arranged on the first side (i.e., the left side) and the second side (i.e., the right side) of the angle steel on the anchoring member 2-1, and the height of the first bolt hole on the first side is different from the height of the first bolt hole on the second side, as shown in FIG. 2. Figure 2 In this way, when the anchoring member 2-1 is used to fix the module 2-3 at the bottom to the base 1, the bolts installed on the adjacent two sides of the anchoring member 2-1 do not collide with each other in space.

[0057] Further, in the embodiment, the connecting member 2-2 is an angle steel, and a plurality of second bolt holes are arranged on the connecting member 2-2, and the adjacent two modules 2-3 are bolted to the connecting member 2-2 through the plurality of second bolt holes, as shown in FIG. 3. Figure 3 The plurality of connecting members 2-2 can be used to connect the plurality of modules 2-3 in the vertical direction to form a whole.

[0058] Further, in the embodiment, the plurality of second bolt holes on the connecting member 2-2 are arranged on the third side (i.e., the left side) and the fourth side (i.e., the right side) of the connecting member 2-2, and the height of the second bolt hole on the third side is different from the height of the second bolt hole on the fourth side, as shown in FIG. 4. Figure 3 In this way, when the connecting member 2-2 is used to connect the adjacent two modules 2-3 in the vertical direction, the bolts installed on the adjacent two sides of the connecting member 2-2 do not collide with each other in space.

[0059] Further, the module 2-3 of the embodiment is in the shape of a cuboid frame, and the module 2-3 includes a plurality of angle steels connected to each other, and the adjacent angle steels are welded through a steel plate, as shown in FIG. 5. Figures 4-7 The upper side of the module 2-3 is the A face, the front side is the C face, and the right side is the B face. At this time, the purlin 2-4 is welded on the front and rear sides of the module 2-3, and the front side (i.e., the C face) and the rear side each have two purlins 2-4 welded thereon. The module 2-3 of the embodiment is entirely welded by the angle steels, and the structure is simple. The module 2-3 can be pre-welded into a standard block, and the modular installation can improve the construction efficiency.

[0060] Further, among the six faces of the module 2-3, reinforcing angle irons are welded on the opposite two sides in the vertical direction and perpendicular to the soundproof panel 3, i.e. the left and right sides (i.e. the B face), as shown in Figs. 2 and 3. By welding the reinforcing angle irons, the overall structural strength of the module 2-3 can be improved, thereby improving the overall wind-resistant stability of the modular wind-resistant column 2. Figure 1 、 Figure 4 、 Figure 6 By welding the reinforcing angle irons, the overall structural strength of the module 2-3 can be improved, thereby improving the overall wind-resistant stability of the modular wind-resistant column 2.

[0061] In the present embodiment, the bottommost module 2-3 is bolted to the anchoring member 2-1 through the pre-buried bolt 1-1 on the floor 1 and the plurality of first bolt holes on the side of the anchoring member 2-1. The adjacent modules 2-3 are bolted to each other by the connecting member 2-2, and the connection is layer by layer until the height of the modular wind-resistant column 2 reaches the required height.

[0062] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A sound barrier, characterized in that The utility model relates to a wind-resistant column and a sound insulation panel, and belongs to the field of building materials. It comprises: a base; a plurality of modular wind-resistant columns, each of which comprises a plurality of anchoring members, a plurality of vertically stacked modules and a plurality of connecting members; the anchoring members are used to detachably connect the modular wind-resistant columns to the base, and the connecting members are used to connect the plurality of modules to each other; at least one side of each of the modules is connected to a purlin; and 2. A sound barrier according to claim 1, wherein a sound insulation panel comprising a plurality of sound insulation panels that are mutually overlapped, the four edges of each of the sound insulation panels are provided with overlapping steps, two adjacent sound insulation panels are overlapped by the overlapping steps, and the total thickness of the overlapping steps on both sides is less than the thickness of the sound insulation panel; one side of the sound insulation panel is provided with a plurality of hooks, and the plurality of hooks are hung to the purlins.

3. A sound barrier according to claim 1, wherein The overlapping steps are provided with sealing rubber strips.

4. A sound barrier according to claim 3, wherein The utility model further comprises a plurality of nuts, each of the hooks is provided with an oblong hole, the purlins are connected to a plurality of threaded rods that pass through the oblong holes, and the nuts are screwed onto the threaded rods.

5. A sound barrier according to claim 1, wherein Of the six faces of the module, opposite two sides in the vertical direction and parallel to the sound insulation panel are each connected to two purlins above and below, and the plurality of threaded rods on the two purlins on the same side are symmetrically arranged.

6. A sound barrier according to claim 5, wherein The base is provided with a plurality of groups of embedded bolts, the anchoring members comprise a base plate and an angle steel that are connected to each other, the base plate is connected to the base by the embedded bolts, and the angle steel is provided with a plurality of first bolt holes, and the angle steel is bolted to the bottommost module by the plurality of first bolt holes.

7. A sound barrier according to claim 1, wherein The plurality of first bolt holes are respectively arranged on the first side face and the second side face of the angle steel, and the first bolt holes on the first side face are different in height from the first bolt holes on the second side face.

8. A sound barrier according to claim 7, wherein The connecting members are angle steels, the connecting members are provided with a plurality of second bolt holes, and two adjacent modules are bolted to the connecting members by the plurality of second bolt holes.

9. A sound barrier according to any one of claims 1 to 8, wherein The plurality of second bolt holes are respectively arranged on the third side face and the fourth side face of the connecting members, and the second bolt holes on the third side face are different in height from the second bolt holes on the fourth side face.

10. A sound barrier according to claim 9, wherein The module is in the shape of a cuboid frame, the module comprises a plurality of angle steels that are connected to each other perpendicularly, and the adjacent angle steels are welded by steel plates. Of the six faces of the module, opposite two side faces in the vertical direction and perpendicular to the sound insulation panel are further welded to reinforced angle steels.

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