Sound absorbing noise reducing wave shaped barrier

Abstract

The present application relates to the technical field of urban traffic noise control, in particular to a sound-absorbing and noise-reducing wave-shaped guardrail, which comprises a stand, a bracket, a fastener, a combined energy-dissipation turning system, a wave-shaped guardrail steel plate and a sound-absorbing plate. The wave-shaped guardrail steel plate comprises a screen body panel and a screen body back plate. In the present application, the screen body panel is made of a wave-shaped perforated galvanized steel plate, which is internally filled with hydrophobic sound-absorbing cotton, achieving multiple effects of sound absorption, noise reduction, environmental protection and durability. The combined energy-dissipation turning system can drive the vehicle to correct the driving direction when the vehicle hits, avoiding frontal impact and improving the impact protection performance. The guardrail has a simple structure and is easy to install and modify. It not only can effectively reduce road traffic noise, but also can provide better safety protection effect, and has a wide application prospect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of urban traffic noise control technology, and particularly relates to a sound-absorbing and noise-reducing wave-shaped guardrail. BACKGROUND

[0002] The wave-shaped guardrail is a combined wave-shaped plate movable steel guardrail used at the opening of the highway central separation zone. The guardrail is composed of two to three wave-shaped steel guardrail plates and two vertical columns fixedly clamped between the two wave-shaped steel guardrail plates. When a vehicle collides with the guardrail, the wave-shaped steel guardrail plate has good crashworthiness and energy absorption effect, so that the guardrail is not easily damaged, and the vehicle and the driver and passenger are well protected.

[0003] With the rapid development of the transportation industry, the noise pollution problem of roads and bridges is increasingly prominent. The traditional wave-shaped guardrail mainly focuses on the safety protection function. Therefore, developing a wave-shaped guardrail that can not only ensure safety but also effectively reduce noise is of great significance to improve the surrounding environment of roads and bridges. SUMMARY

[0004] The present application aims to solve the technical problems raised in the background.

[0005] The present application adopts the following technical scheme: a sound-absorbing and noise-reducing wave-shaped guardrail, comprising a vertical column, a bracket, a fastener, a combined energy-dissipation and turning system, a wave-shaped guardrail steel plate and a sound-absorbing plate, wherein the wave-shaped guardrail steel plate comprises a screen body panel and a screen body back plate.

[0006] The width of the screen body panel and the screen body back plate is 1410mm to 4320mm, the height is 310mm to 350mm, and the thickness is 50mm to 150mm. The screen body back plate is connected with the vertical column and the bracket through the fastener. The screen body panel is internally welded with a spring damping device. The upper cover plate and the lower bottom plate of the screen body panel are formed into an upper cover plate buckle and a lower cover plate buckle by bending. The upper cover plate buckle and the lower cover plate buckle are fixed with the screen body back plate. The screen body panel is internally filled with sound-absorbing cotton. The lower bottom plate of the screen body panel is provided with a drainage hole, and the two sides have side panels to protect the inside.

[0007] Preferably, the combined energy-dissipation and turning system is composed of a sliding block sliding groove and a C-shaped sliding block. The sliding block sliding groove is welded on both sides of the vertical column. The C-shaped sliding block can slide through the sliding block sliding groove. Each C-shaped sliding block is welded with two adjacent screen body panels on both sides of the vertical column. Here, the impact force can be effectively dispersed and absorbed when the screen body panel is hit, avoiding direct damage to the vehicle and passengers by frontal impact, and at the same time, correcting the driving direction of the vehicle to reduce the severity of the accident.

[0008] Preferably, the screen panel has a diameter of 2.5mm, an opening rate of 25%, a panel thickness of 1mm to 4mm, and a back plate thickness of 3mm to 4mm. Here, the sound absorption performance of the screen panel is improved, effectively reducing traffic noise, while maintaining the structural strength of the panel, increasing the durability and reliability of the guardrail.

[0009] Preferably, the sound absorption panel is wrapped with a hydrophobic cloth. Here, the sound absorption panel wrapped with a hydrophobic cloth has excellent waterproof performance and sound absorption effect, prolonging the service life of the guardrail while maintaining good sound absorption effect, effectively reducing the impact of traffic noise on the surrounding environment.

[0010] Preferably, the screen panel has a diameter of 2.5mm, an opening rate of 25%, a panel thickness of 1mm to 4mm, and a back plate thickness of 3mm to 4mm. Here, the sound absorption performance of the screen panel is improved, effectively reducing traffic noise, while maintaining the structural strength of the panel, increasing the durability and reliability of the guardrail.

[0011] Preferably, the screen panel has a diameter of 2.5mm, an opening rate of 25%, a panel thickness of 1mm to 4mm, and a back plate thickness of 3mm to 4mm. Here, the sound absorption performance of the screen panel is improved, effectively reducing traffic noise, while maintaining the structural strength of the panel, increasing the durability and reliability of the guardrail.

[0012] Preferably, the screen panel has a diameter of 2.5mm, an opening rate of 25%, a panel thickness of 1mm to 4mm, and a back plate thickness of 3mm to 4mm. Here, the sound absorption performance of the screen panel is improved, effectively reducing traffic noise, while maintaining the structural strength of the panel, increasing the durability and reliability of the guardrail.

[0013] Compared with the prior art, the advantages and positive effects of the present application are:

[0014] 1. The sound absorption and noise reduction wave-shaped guardrail structure in the present application has a simple and convenient design. The screen back plate is consistent with the existing wave-shaped guardrail structure, which facilitates the modification of the existing wave-shaped guardrail, thereby reducing the cost and time of installation and modification.

[0015] 2. In the present application, the overall thickness of the sound absorption and noise reduction wave-shaped guardrail is increased, which can better absorb the initial impact force. The internal spring damping device and sound absorption panel further absorb kinetic energy, providing better impact protection effect. After being hit, the combined energy dissipation and turning system can assist the vehicle in correcting the direction, avoiding frontal impact, thereby improving the impact resistance performance of the guardrail.

[0016] 3、The sound absorption and noise reduction wave-shaped guardrail can effectively realize impact protection function, has good sound absorption and noise reduction effect, can effectively reduce road traffic noise, noise reduction coefficient NRC is not less than 0.7, is a multifunctional wave-shaped guardrail integrating impact protection function and noise reduction function. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A sectional view of the sound absorption and noise reduction wave-shaped guardrail is provided for the present application;

[0018] Figure 2 An exploded perspective view of the sound absorption and noise reduction wave-shaped guardrail is provided for the present application;

[0019] Figure 3 A perspective view of the combined energy dissipation and steering system of the sound absorption and noise reduction wave-shaped guardrail is provided for the present application;

[0020] Figure 4 A perspective view of the combined energy dissipation and steering system of the sound absorption and noise reduction wave-shaped guardrail after being hit by a vehicle is provided for the present application.

[0021] LEGEND:

[0022] 1, stand column; 2, fastener; 3, bracket; 4, screen body panel; 5, screen body back plate; 6, spring damping device; 7, upper cover plate; 8, upper cover plate buckle; 9, lower bottom plate; 10, lower bottom plate buckle; 11, side panel; 12, sound absorption plate; 13, combined energy dissipation and steering system; 14, sliding block sliding groove; 15, C-shaped sliding block; 16, ear plate. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application will be further described below in combination with the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0025] EMBODIMENT

[0026] Please refer to Figures 1-4The application provides a technical scheme: a sound absorption and noise reduction wave-shaped guardrail, which comprises a stand column 1, a bracket 3, a fastener 2, a combined energy dissipation and turning system 13, a wave-shaped guardrail steel plate and a sound absorption plate 12, the wave-shaped guardrail steel plate comprises a screen body panel 4 and a screen body back plate 5, the width of the screen body panel 4 and the screen body back plate 5 is 1410mm to 4320mm, the height is 310mm to 350mm, and the thickness is 50mm to 150mm, the screen body back plate 5 is connected with the stand column 1 and the bracket 3 through the fastener 2, the screen body back plate 5 is made of a wave-shaped galvanized steel plate, the screen body panel 4 is in a whole C shape and is made of a wave-shaped through-hole galvanized steel plate, the wave-shaped galvanized steel plate has excellent corrosion resistance and mechanical strength, so that the screen body back plate 5 is more solid and durable, the C-shaped screen body panel 4 improves the structural strength and sound absorption effect of the guardrail, reduces the influence of traffic noise on the environment, and simultaneously increases the anti-collision performance of the guardrail, the screen body panel 4 is internally welded with a spring damping device 6, the upper cover plate 7 and the lower bottom plate 9 of the screen body panel 4 are bent to form an upper cover plate 7 buckle and a lower cover plate buckle, the upper cover plate 7 buckle and the lower cover plate buckle are fixed with the screen body back plate 5, the screen body panel 4 is internally filled with sound absorption cotton, the lower bottom plate 9 of the screen body panel 4 is provided with a drainage hole, and the sound absorption plate 12 is protected inside through side plates 11 on both sides, the combined energy dissipation and turning system 13 is composed of a sliding block sliding groove 14 and a C-shaped sliding block 15, the stand column 1 is welded with the sliding block sliding groove 14 on both sides, the C-shaped sliding block 15 can slide through the sliding block sliding groove 14, and each C-shaped sliding block 15 is welded with two screen body panels 4 adjacent to the stand column 1 on both sides, so that the impact force can be effectively dispersed and absorbed when the screen body panel 4 is hit, direct damage to the vehicle and passengers caused by frontal impact is avoided, the driving direction of the vehicle is corrected, and the severity of the accident is reduced, the through-hole diameter of the screen body panel 4 is 2.5mm, the opening rate is 25%, the panel thickness is 1mm to 4mm, and the back plate thickness is 3mm to 4mm, so that the sound absorption performance of the screen body panel 4 is improved, the traffic noise is effectively reduced, the structural strength of the panel is maintained, the durability and reliability of the guardrail are increased, the sound absorption plate 12 is filled and wrapped with water-repellent cloth, the sound absorption plate 12 wrapped with the water-repellent cloth has excellent waterproof performance and sound absorption effect, the service life of the guardrail is prolonged, the sound absorption effect is maintained, the influence of traffic noise on the surrounding environment is effectively reduced, the upper cover plate 7 and the lower bottom plate 9 of the screen body panel 4 are provided with lug plates 16 at both ends, the lug plates 16 are welded with the C-shaped sliding block 15 of the combined energy dissipation and turning system 13, so that the screen body panel 4 and the combined energy dissipation and turning system 13 are more closely combined, the overall stability and impact resistance of the structure are improved, the anti-collision performance and safety of the guardrail are further improved, the screen body back plate 5 is consistent with the existing wave-shaped guardrail structure, the existing wave-shaped guardrail can be easily modified and installed, the construction cost and time are reduced, the universality and adaptability of the guardrail are improved, the guardrail can be quickly deployed and applied to the existing road system, and the road safety and environmental quality are improved.

[0027] Working principle: The sound absorption and noise reduction wave-shaped screen body adopts wave-shaped steel plate as screen body back plate 5, wave-shaped perforated zinc-plated steel plate as screen body panel 4, and internally filled with sound absorption plate 12 wrapped with water-repellent cloth. The perforated panel has a perforated diameter of 2.5 mm, an opening rate of 25% in general, a panel thickness of 1-4 mm, and a back plate thickness of 3-4 mm. The screen body panel 4 is in a whole C shape, and internally welded with spring damping device 6. The upper cover plate 7 and the lower bottom plate 9 of the screen body panel 4 are buckled by bending, fixed with the screen body back plate 5 through the buckle, and internally filled with sound absorption plate 12 wrapped with water-repellent cloth. The lower bottom plate 9 of the screen body panel 4 is provided with a drainage hole. The upper cover plate 7 and the lower bottom plate 9 of the screen body panel 4 are provided with lug plates 16 at both ends. The slide block sliding groove 14 is welded on both sides of the column 1, and the C-shaped slide block 15 can slide through the slide block sliding groove 14. Each C-shaped slide block 15 is welded with the lug plates 16 on the two screen body panels 4 adjacent to both sides of the column 1, forming a combined energy dissipation turning system 13. When one screen body panel 4 is extruded to move outwardly to the road, it drives the adjacent screen body panel 4 to move together, forming an arc-shaped area to correct the vehicle direction and avoid head-on impact. The screen body back plate 5 is consistent with the existing wave-shaped guardrail structure, so that the present application is very convenient to modify on the existing wave-shaped guardrail.

[0028] The above description is only the preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above-mentioned technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the present application.

Claims

1. A sound-absorbing and noise-reducing corrugated guardrail, comprising a column (1), a bracket (3), a fastener (2), a combined energy dissipation and steering system (13), a corrugated guardrail steel plate, and a sound-absorbing plate (12), characterized in that: The corrugated guardrail steel plate comprises a screen panel (4) and a screen back panel (5); The width of the screen panel (4) and the screen back panel (5) is 1410 mm to 4320 mm, the height is 310 mm to 350 mm, and the thickness is 50 mm to 150 mm. The screen back panel (5) is connected to the column (1) and the bracket (3) through a fastener (2). A spring shock-absorbing device (6) is welded inside the screen panel (4). The upper cover plate (7) and the lower bottom plate (9) of the screen panel (4) are bent to form an upper cover plate buckle (8) and a lower bottom plate buckle (10). The upper cover plate buckle (8) and the lower bottom plate buckle (10) are fixed to the screen back panel (5). The interior of the screen panel (4) is filled with sound-absorbing cotton. The lower bottom plate (9) of the screen panel (4) is provided with a drainage hole, and side panels (11) are provided on both sides to protect the interior. The combined energy dissipation steering system (13) is composed of a slider chute (14) and a C-shaped slider (15). The slider chute (14) is welded on both sides of the column (1). The C-shaped slider (15) can slide through the slider chute (14). Each C-shaped slider (15) is simultaneously welded to two adjacent screen panels (4) on both sides of the column (1).

2. The sound-absorbing and noise-reducing corrugated guardrail according to claim 1 is characterized by: The through hole diameter of the screen panel (4) is 2.5 mm, the opening rate is 25%, the panel thickness is 1 mm to 4 mm, and the back panel thickness is 3 mm to 4 mm.

3. The sound-absorbing and noise-reducing corrugated guardrail according to claim 1 is characterized in that: The sound absorbing panel (12) is filled and wrapped with water-repellent cloth.

4. The sound-absorbing and noise-reducing corrugated guardrail according to claim 1 is characterized by: Ear plates (16) are provided at both ends of the upper cover plate (7) and the lower base plate (9) of the screen panel (4), and the ear plates (16) are welded to the C-shaped slider (15) of the combined energy dissipation steering system (13).

5. The sound-absorbing and noise-reducing corrugated guardrail according to claim 1 is characterized by: The screen back plate (5) is made of corrugated galvanized steel plate, and the screen panel (4) is C-shaped as a whole and is made of corrugated through-hole galvanized steel plate.

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