Sound barrier roof interference device

Abstract

The utility model relates to a sound barrier top interference device belongs to environmental protection noise technical field, solves the technical problem that cover board integrated process is complex, cost is higher, and maintenance is inconvenient, solution is: sound barrier top interference device includes framework component and sound absorption and insulation component, and sound absorption and insulation component installs in the top of sound barrier along the length direction through framework component, the framework component includes baffle, connecting plate, buckle plate and top crossbeam, the sound absorption and insulation component includes top cover, outer hole board, inner hole board, sound absorption body and support card, the utility model discloses simple production process, safe and reliable, can effectively absorb top diffraction sound, makes diffraction sound to get diffusion and attenuation, and the effect of noise reduction is improved significantly.

Description

Technical Field

[0001] This utility model belongs to the field of environmental noise technology, specifically relating to an interference device at the top of a sound barrier. Background Technology

[0002] With the rapid development of urban elevated roads and highways, and the continuous increase in vehicles, noise pollution from traffic vehicles on both sides of the road is increasing daily. As living standards improve, people's demands for noise control are also rising. Therefore, the common solution is to install sound barriers along roadsides. Currently, most commonly used sound barriers are vertical, resulting in poor sound insulation and noise reduction. In practical terms, the most significant impact comes from "diffraction" at the top, which is also the most difficult to control. Although increasing the height can improve the propagation of diffracted sound from the top, it will affect nearby lighting, construction costs, and the urban landscape. Most importantly, excessively high sound barriers can actually reduce safety, thus limiting the height of sound barriers.

[0003] For other types of top interferometers, the cost of integrally molding the outer cover into a special shape is relatively high and the process is more complex. From the perspective of installation, the complex shape requires certain installation technical requirements and tools, and maintenance is also relatively difficult. Therefore, there are certain difficulties in manufacturing, installation, maintenance and inspection. Utility Model Content

[0004] The main purpose of this utility model is to overcome the shortcomings of the prior art. This utility model provides an interference device for the top of a sound barrier.

[0005] This utility model is achieved through the following technical solution: a sound barrier top interference device, which includes a skeleton component and a sound absorption and insulation component, wherein: the sound absorption and insulation component is installed on the top of the sound barrier along the length direction through the skeleton component; The skeleton component includes partitions, connecting plates, snap-on plates, and a top beam. The connecting plates are fixedly installed on the front and rear side walls of the snap-on plates. The snap-on plates are installed along the length of the top of the sound barrier and are fixedly connected to the top of the sound barrier through the connecting plates. The partitions are vertically arranged at the beginning, end, and middle of the snap-on plates. The tops of adjacent partitions are fixedly connected through the top beam, which is located directly above the snap-on plates. The skeleton component as a whole forms a supporting frame and is the main load-bearing component of the interference device. The sound-absorbing and insulating component includes a top cover plate, an outer perforated plate, an inner perforated plate, a sound absorber, and a support clip. The two inner perforated plates are arranged opposite each other. The lower end of the inner perforated plate is fixedly connected to the web of the buckle plate, and the upper end of the inner perforated plate is fixedly connected to the lower end face of the top crossbeam. The tops of the two inner perforated plates are fixedly connected by the support clip. The sound absorber fills the cavity formed by the two inner perforated plates, the buckle plate, and the support clip. The support clip is a bent plate made of thin plate bent into a groove shape, which serves to connect and reinforce the inner perforated plates. The two outer perforated plates are arranged opposite each other. The outline shape of the bent outer perforated plate fits the outer edge of the partition plate. The lower end of the outer perforated plate is fixedly connected to the side plate of the buckle plate, and the upper end of the outer perforated plate is fixedly connected to the upper end face of the top crossbeam. The top cover plate is placed on the joint position at the upper end of the two outer perforated plates and fixedly connected to the top crossbeam. The top cover plate is a bent plate made of metal or non-metal plate, which serves to connect the two outer perforated plates and waterproof them.

[0006] Furthermore, both the outer and inner perforated plates are equipped with a plurality of through holes for sound absorption. The outer perforated plate is an arc-shaped plate made by stamping or bending a metal or non-metal thin sheet using a mold, and its surface is evenly distributed with small holes, serving the functions of sound transmission, support, and aesthetics. The inner perforated plate is a folded plate made by stamping or bending a metal or non-metal thin sheet using a mold, and its lower region is particularly evenly distributed with small holes, serving the functions of sound transmission, sound insulation, and connection.

[0007] Furthermore, the partition is made of metal or hard non-metallic material, and its outline is clover-shaped, which serves to strengthen the skeleton components and block the ends of the interference device.

[0008] Furthermore, the buckle plate is a C-shaped channel steel, the connecting plate is a steel plate or section steel, the top beam is a C-shaped component formed by bending thin plate, and the width of the web plate in the buckle plate is greater than the width of the web plate in the top beam. The top beam plays a role in strengthening the load-bearing capacity of the skeleton and connecting it. The connecting plate plays a role in connecting and supporting the interference device with the external support structure. The buckle plate is the main load-bearing structure of the skeleton component.

[0009] Furthermore, the width between the lower parts of the inner plates on both sides is greater than the width between the upper parts.

[0010] Furthermore, the sound absorber is made of rock wool or glass wool, which serves to absorb sound.

[0011] Furthermore, the partition plate and the buckle plate, the lower end of the inner hole plate and the buckle plate, the upper end of the inner hole plate and the lower end face of the top crossbeam, the top of the two inner hole plates and the support clip, the upper end of the outer hole plate and the upper end face of the top crossbeam, the lower end of the outer hole plate and the side plate of the buckle plate, and the top cover plate and the top crossbeam are all connected by bolts.

[0012] The beneficial effects of this utility model are as follows: The present invention provides a top interference device for a sound barrier, which is simple to manufacture, safe and reliable, and can effectively absorb top diffracted sound, so that the diffracted sound is diffused and attenuated, and the noise reduction effect is significantly improved. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure from the middle AA plane; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle BB plane; Figure 4 This is a schematic diagram of the main structure of the skeleton component; Figure 5 This is a side view of the skeleton component. Figure 6 This is a side view of the external perforated plate structure. Figure 7 This is a schematic diagram of the side view of the internal perforated plate. Figure 8 This is a schematic diagram of the main structure of the partition.

[0014] In the diagram, 1 is the top cover plate, 2 is the outer perforated plate, 3 is the partition plate, 4 is the connecting plate, 5 is the rivet, 6 is the buckle plate, 7 is the inner perforated plate, 8 is the sound absorber, 9 is the support clip, and 10 is the top crossbeam. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0016] like Figures 1 to 8 The device shown is an interference device on the top of a sound barrier, which is 2 meters long and 0.5 meters high. It includes a frame component and a sound-absorbing and sound-insulating component, wherein the sound-absorbing and sound-insulating component is installed on the top of the sound barrier along the length direction through the frame component.

[0017] In this embodiment, the frame component has a total length of 1995mm and a total height of 490mm. The frame component includes partition plates 3, connecting plates 4, snap-on plates 6, and a top crossbeam 10. The snap-on plate 6 is a C-shaped channel steel, made by bending 2mm galvanized sheet. The length of the snap-on plate 6 is 1995mm, and the cross-section opening faces downwards during installation. Four connecting plates 4 are fixedly installed (welded) on the front and rear side walls at the four corners of the snap-on plate 6. The connecting plates 4 are steel plates or structural steel. In this embodiment, the connecting plates 4 are made of angle steel with specifications of L75×50×6, and the length of the connecting plates 4 is 200mm. The snap-on plate 6 is installed along the length direction on the top of the sound barrier and is connected to the sound barrier through the connecting plates 4. The top of the barrier is fixedly connected; the partition 3 is vertically arranged at the first and last ends and the middle of the buckle 6. The partition 3 is made of metal or hard non-metallic material. In this embodiment, the partition 3 is made of galvanized sheet with a thickness of 2mm. The outline shape of the partition 3 is clover shape. The tops of adjacent partitions 3 are fixedly connected by top beam 10. The top beam 10 is located directly above the buckle 6. The top beam 10 is a C-shaped component (size specification: C120×30) formed by bending 2mm thin plate (galvanized sheet) and has a length of 990mm. The width of the web of the buckle 6 is greater than the width of the web of the top beam 10.

[0018] In this embodiment, the sound-absorbing and insulating component has a total length of 980 mm and a height of 400 mm. The component includes a top cover plate 1, an outer perforated plate 2, an inner perforated plate 7, a sound-absorbing body 8, and a support clip 9. Two inner perforated plates 7 are arranged opposite each other. Each inner perforated plate 7 is a folded plate made of 1.5 mm thick aluminum sheet, and its lower region has evenly distributed through holes with a diameter of 6 mm for sound absorption. The lower end of the inner perforated plate 7 is fixedly connected to the web of the buckle plate 6, and the upper end of the inner perforated plate 7 is connected to the top crossbeam 10. The lower end face is fixedly connected, and the top of the inner hole plates 7 on both sides is fixedly connected by the support clip 9. The support clip 9 is a bent plate with a thickness of 1.5mm, which is bent into a C120×30 groove shape. The width between the lower parts of the inner hole plates 7 on both sides is greater than the width between the upper parts. The sound absorber 8 is filled in the cavity formed by the two inner hole plates 7, the buckle plate 6 and the support clip 9. The material of the sound absorber 8 is rock wool or glass wool. In this embodiment, the sound absorber 8 is rock wool with a density of 100kg / m³. The two outer perforated plates 2 are arranged opposite each other. The outer perforated plates are arc-shaped plates made of 3mm thick polymer non-metallic plates through a mold. The outline of the bent outer perforated plate 2 fits the outer edge of the partition plate 3. The outer perforated plate 2 has uniformly distributed through holes with a diameter of 3mm for sound absorption. The lower end of the outer perforated plate 2 is fixedly connected to the side plate of the buckle plate 6, and the upper end of the outer perforated plate 2 is fixedly connected to the upper end face of the top crossbeam 10. The top cover plate 1 is placed at the joint position of the upper end of the two outer perforated plates 2 and is fixedly connected to the top crossbeam 10. The top cover plate 1 is a bent plate made of 3mm thick polymer non-metallic plates with a length of 1950mm.

[0019] In this embodiment, the partition plate 3 and the buckle plate 6, the lower end of the inner hole plate 7 and the buckle plate 6, the upper end of the inner hole plate 7 and the lower end face of the top crossbeam 10, the top of the two inner hole plates 7 and the support clip 9, the upper end of the outer hole plate 2 and the upper end face of the top crossbeam 10, the lower end of the outer hole plate 2 and the side plate of the buckle plate 6, and the top cover plate 1 and the top crossbeam 10 are all connected by bolts 5 with a specification of M8×20.

[0020] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A noise barrier top interference device, comprising a frame component and a sound-absorbing and sound-insulating component, characterized in that: The sound-absorbing and sound-insulating components are installed on top of the sound barrier along its length via the frame components; The frame components include partitions (3), connecting plates (4), snap-on plates (6), and a top beam (10). The connecting plates (4) are fixedly installed on the front and rear side walls of the snap-on plates (6). The snap-on plates (6) are installed on the top of the sound barrier along the length direction and are fixedly connected to the top of the sound barrier through the connecting plates (4). The partitions (3) are vertically arranged at the beginning, end, and middle of the snap-on plates (6). The tops of adjacent partitions (3) are fixedly connected through the top beam (10), and the top beam (10) is located directly above the snap-on plates (6). The sound-absorbing and insulating component includes a top cover plate (1), an outer perforated plate (2), an inner perforated plate (7), a sound absorber (8), and a support clip (9). The two inner perforated plates (7) are arranged opposite to each other. The lower end of the inner perforated plate (7) is fixedly connected to the web of the buckle plate (6), and the upper end of the inner perforated plate (7) is fixedly connected to the lower end face of the top crossbeam (10). The tops of the two inner perforated plates (7) are fixedly connected by the support clip (9). The sound absorber (8) fills the two inner perforated plates (7). The cavity is formed by the buckle plate (6) and the support clip (9); the two outer perforated plates (2) are arranged opposite to each other, the outline of the bent outer perforated plate (2) is in contact with the outer edge of the partition plate (3), the lower end of the outer perforated plate (2) is fixedly connected to the side plate of the buckle plate (6), the upper end of the outer perforated plate (2) is fixedly connected to the upper end of the top beam (10), and the top cover plate (1) is placed on the joint position of the upper end of the two outer perforated plates (2) and fixedly connected to the top beam (10).

2. The interference device at the top of a sound barrier according to claim 1, characterized in that: The outer perforated plate (2) and the inner perforated plate (7) are evenly distributed with a number of through holes for sound absorption.

3. The interference device at the top of a sound barrier according to claim 1, characterized in that: The partition (3) is made of metal or hard non-metallic material, and the outline shape of the partition (3) is clover-shaped.

4. The interference device at the top of a sound barrier according to claim 1, characterized in that: The buckle plate (6) is a C-shaped channel steel, the connecting plate (4) is a steel plate or section steel, the top beam (10) is a C-shaped component formed by bending thin plate, and the width of the web plate in the buckle plate (6) is greater than the width of the web plate in the top beam (10).

5. The interference device at the top of a sound barrier according to claim 1, characterized in that: The width between the lower parts of the inner plates (7) on both sides is greater than the width between the upper parts.

6. The interference device at the top of a sound barrier according to claim 1, characterized in that: The sound absorber (8) is made of rock wool or glass wool.

7. The interference device at the top of a sound barrier according to claim 1, characterized in that: The partition (3) and the buckle (6), the lower end of the inner hole plate (7) and the buckle (6), the upper end of the inner hole plate (7) and the lower end face of the top crossbeam (10), the top of the inner hole plates (7) on both sides and the support clip (9), the upper end of the outer hole plate (2) and the upper end face of the top crossbeam (10), the lower end of the outer hole plate (2) and the side plate of the buckle (6), and the top cover plate (1) and the top crossbeam (10) are all connected by bolts (5).

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