Noise reduction barrier and use method thereof

Abstract

The noise reduction barrier comprises a noise reduction box, a mounting mechanism is arranged at the bottom of the noise reduction box, and the front side face of the noise reduction box is open. The invention belongs to the technical field of noise reduction barriers, wind power generated when a motor vehicle runs is utilized to drive large spiral blades and long spiral blades to rotate, when noise sound waves enter gaps between the long spiral blades and noise reduction holes in the long spiral blades, air motion can be formed in the gaps and holes, and noise reduction is achieved. Due to the viscous resistance of air and the frictional resistance of the hole wall, part of sound energy is converted into heat energy to be consumed, and active attenuation of traffic noise is achieved; residual noise is reflected and absorbed for multiple times through the sound absorption plates laid on the inner side face of the noise reduction box and the main noise reduction wall arranged in the noise reduction box, the noise level is further reduced, noise reduction operation is conducted on traffic noise through cooperation of the active noise reduction equipment and the noise reduction box, the noise reduction requirements under different time periods and different traffic conditions can be met, and the noise reduction efficiency is improved. And the living environment of surrounding residents is effectively protected.

Description

Technical Field

[0001] The present invention belongs to the technical field of noise reduction barriers, and in particular relates to a noise reduction barrier and a method of using the same. Background Art

[0002] With the acceleration of global urbanization and the continued expansion of transportation infrastructure, traffic noise pollution has become a core environmental issue affecting the quality of life of urban residents. According to the World Health Organization (WHO), approximately 22% of the global population is chronically exposed to traffic noise exceeding 55 decibels. Long-term exposure to traffic noise can cause physical health problems such as cardiovascular disease, sleep disorders, and cognitive decline, while also significantly increasing the incidence of psychological disorders such as anxiety and depression. Low-frequency noise (20-200Hz) is particularly harmful due to its strong penetrating properties and long-distance propagation, easily resonating with human organs.

[0003] Existing noise reduction barriers generally use a barrier soundproofing panel structure, whose noise reduction mechanism relies primarily on the sound absorption and sound insulation properties of the material, and is a passive noise reduction technology. Traffic noise is random and fluctuating, and its intensity and frequency vary with factors such as traffic volume, speed, and vehicle type. However, once installed, the noise reduction performance of traditional barrier soundproofing panels is fixed, making it difficult to adapt to noise reduction needs at different times and under different traffic conditions. Especially during peak traffic periods, when noise intensity increases significantly, the noise reduction effect of existing barriers will be significantly reduced, and they will be unable to effectively protect the living environment of surrounding residents. Therefore, designing a noise reduction barrier with an active noise reduction structure has become a technical problem that needs to be solved. Summary of the Invention

[0004] The present invention provides a noise reduction barrier and a method of using the same, which utilizes the wind force generated by a motor vehicle when it is traveling to drive large spiral blades and long spiral blades to rotate. When noise sound waves are incident on the gaps between the long spiral blades and the silencer holes on the long spiral blades, air movement is generated in the gaps and holes. Due to the viscous resistance of the air and the friction resistance of the hole wall, a portion of the sound energy is converted into heat energy and consumed, thereby achieving active attenuation of traffic noise. The sound-absorbing panels laid on the inner side of the noise reduction box and the main silencer wall arranged inside reflect and absorb the remaining noise multiple times, further reducing the noise level.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A noise reduction barrier comprises a noise reduction box, the bottom of which is provided with a mounting mechanism, the front side of the noise reduction box is open, a shielding plate is provided at the lower position of the front side of the noise reduction box, the inner sides of the noise reduction box are paved with sound-absorbing panels, two rotating shafts are rotatably provided on the top plate of the noise reduction box, a one-way bearing is provided between the rotating shaft and the top plate, the bottom of the rotating shaft is provided with a mounting block rotatably arranged inside the noise reduction box, a large spiral blade is provided on the rotating shaft above the top plate, and a long spiral blade is provided on the rotating shaft below the top plate.

[0006] A micro-generator is respectively provided on the two mounting blocks inside the noise reduction box, and the bottoms of the two rotating shafts are respectively connected to the micro-generator; a lighting lamp is provided on the lower side of the top plate of the noise reduction box, and the micro-generator is connected to the lighting lamp through a circuit.

[0007] An adjusting roller is rotatably provided on the top rear side of the noise reduction box, an upwardly arranged guide plate is provided on the adjusting roller, a row of adjusting holes is provided on the lower side of the middle of the adjusting roller, and a latch is provided on the rear side of the noise reduction box, which is plugged into the adjusting hole.

[0008] A water collecting plate is provided on the top of the noise reduction box, and water collecting flanges are provided around the water collecting plate. The water collecting plate extends to the left of the noise reduction box, and a leakage hole is provided on the left side of the water collecting plate. A filter is provided on the leakage hole, and a downpipe is provided downward from the leakage hole. A water inlet pipe extending to the inside of the noise reduction box is provided to the right at the bottom of the downpipe, and an overflow pipe is provided to the left at the bottom of the downpipe; a plug interface is provided on the baffle plate on the front side of the noise reduction box, and a water box with an open top is plugged into the plug interface.

[0009] A water retaining plate is provided inside the overflow pipe, and the top of the water retaining plate is hinged to the inner top of the overflow pipe.

[0010] A plurality of silencer holes are provided on the long spiral blade.

[0011] A main sound-absorbing wall is provided on the rear side wall inside the noise reduction box. The main sound-absorbing wall is provided with a first sound-absorbing panel, a first sound-absorbing panel, a second sound-absorbing panel and a second sound-absorbing panel in sequence from front to back.

[0012] A drain port is provided on the water collecting flange at the rear side of the liquid leakage hole of the water collecting plate.

[0013] The mounting mechanism comprises a mounting frame, a fixing sleeve is provided on the top of the mounting frame, a fastening screw is provided on the fixing sleeve, and a mounting column is provided on the bottom of the noise reduction box, which is plugged into and matched with the fixing sleeve.

[0014] A method for using a noise reduction barrier comprises the following steps: a. Install the noise reduction box: The mounting frame of the installation mechanism is equipped with side mounting plates and bottom mounting plates. It can be fixed on the side or bottom according to actual requirements. The mounting direction of the mounting frame can also be rotated through the fixing sleeve to improve the installation capacity of the mounting frame. b. Noise reduction and silencing: After the noise reduction box is fixed to both sides of the highway or elevated road, the wind force generated by the movement of motor vehicles drives the large spiral blades and long spiral blades to rotate. The noise generated by the movement of motor vehicles enters the noise reduction box. When the noise sound waves are incident on the gaps between the long spiral blades and the pores of the silencer holes on the long spiral blades, air movement is generated in the gaps and pores. Due to the viscous resistance of the air and the friction resistance of the hole wall, part of the sound energy is converted into heat energy and consumed. The remaining noise is reflected back and forth in the noise reduction box and absorbed by the sound-absorbing panels laid on the inner side, thereby reducing traffic noise; c. Power generation and lighting: The shaft is driven to rotate by the wind generated by the movement of the motor vehicle. The micro generator at the bottom of the shaft rotates to generate electricity to supply power to the lighting lamp, which can realize lighting and danger warning functions.

[0015] d. Collecting floating dust: The floating dust brought by the wind generated by the driving of the motor vehicle enters the noise reduction box. The long spiral blades generate downward wind force when rotating, which guides the floating dust entering the noise reduction box downward into the water box with an open top. The floating dust is absorbed by the water in the water box, thereby achieving the purpose of collecting floating dust.

[0016] By adopting the above technical solution, the beneficial effects of the present invention are: The wind force generated by the movement of motor vehicles drives the large and long spiral blades to rotate. When the noise sound waves enter the gaps between the long spiral blades and the silencer holes on the long spiral blades, air movement is generated in the gaps and holes. Due to the viscous resistance of the air and the friction resistance of the hole wall, part of the sound energy is converted into heat energy and consumed, thus achieving active attenuation of traffic noise. The sound-absorbing panels laid on the inner side of the noise reduction box and the main sound-absorbing wall inside (including the first sound-absorbing panel, the first sound-absorbing panel, the second sound-absorbing panel and the second sound-absorbing panel) reflect and absorb the remaining noise multiple times, further reducing the noise level. When the shaft is driven by wind, it drives a micro-generator to generate electricity, which powers the lighting inside the noise reduction box. This not only provides lighting but also provides danger warnings at night or in low-light conditions, enhancing road safety. When the long spiral blades rotate, they generate downward wind force, which guides the floating dust entering the noise reduction box into the water box with an open top. The floating dust is absorbed by the water in the water box, effectively reducing the pollution of the floating dust to the environment and achieving environmental benefits for the road. The design of the regulating roller and guide plate enables the noise reduction box to adjust its angle according to actual needs to optimize the noise reduction effect; the design of the water collection plate, downpipe and water inlet pipe realizes the collection and reuse of rainwater, providing water source for the water box in the noise reduction box, further embodying the concept of environmental protection. The present invention reduces traffic noise by cooperating with active noise reduction equipment and a noise reduction box, which can adapt to noise reduction needs in different time periods and different traffic conditions, and effectively protect the living environment of surrounding residents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 The structure of the present invention is schematically shown Figure 2 ; Figure 3 The structure of the present invention is schematically shown Figure 3 ; Figure 4 Schematic diagram of the structure of the rotating shaft in the present invention; Figure 5 Schematic diagram of the structure of the main sound-absorbing wall in the present invention; Figure 6 Schematic diagram of the structure of the guide plate in the present invention; Figure 7 Schematic diagram of the cross-sectional structure of the downpipe in the present invention; Figure 8 It is a structural diagram of the water box in the present invention; Figure 9 The structure of the present invention is schematically shown Figure 4 ; Figure 10 The structure of the present invention is schematically shown Figure 5 .

[0018] Noise reduction box 1, baffle 2, rotating shaft 3, large spiral blade 4, long spiral blade 5, micro generator 6, lighting lamp 7, adjusting roller 8, guide plate 9, adjusting hole 10, latch 11, water collecting plate 12, water collecting flange 13, leakage hole 14, filter 15, downpipe 16, water inlet pipe 17, overflow pipe 18, water box 19, silencer hole 20, first silencer 21, first sound absorbing panel 22, second silencer 23, second sound absorbing panel 24, drain outlet 25, mounting frame 26, fixing sleeve 27, mounting column 28, water retaining plate 29. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] like Figures 1-10 As shown, a noise reduction barrier includes a noise reduction box 1, a mounting mechanism is provided at the bottom of the noise reduction box 1, a drain outlet is provided at the bottom of the noise reduction box 1, the front side of the noise reduction box 1 is open, a baffle 2 is provided at the lower side of the front side of the noise reduction box 1, the inner sides of the noise reduction box 1 are paved with sound-absorbing panels, two rotating shafts 3 are rotatably provided on the top plate of the noise reduction box 1, a one-way bearing is provided between the rotating shaft 3 and the top plate, the bottom of the rotating shaft 3 is provided with a mounting block rotatably arranged inside the noise reduction box 1, a large spiral blade 4 is provided on the rotating shaft 3 above the top plate, and a long spiral blade 5 is provided on the rotating shaft 3 below the top plate.

[0022] Inside the noise reduction box 1, two mounting blocks each house a micro-generator 6, and the bottoms of the two rotating shafts 3 are connected to the micro-generators 6. A lighting lamp 7 is located on the underside of the top plate of the noise reduction box 1, and the micro-generators 6 are connected to the lighting lamps 7 via wiring. Motors can also be installed on the mounting blocks to actively rotate the rotating shafts 3, as required. Energy storage batteries can be installed within the noise reduction box 1 to meet operational requirements. The electricity generated by the micro-generators 6 during the day is fed into the batteries, which then power the lighting lamps 7 at night.

[0023] An adjusting roller 8 is rotatably provided on the top rear side of the noise reduction box 1, and an upwardly arranged guide plate 9 is provided on the adjusting roller 8. A row of adjusting holes 10 are provided at the lower side of the middle of the adjusting roller 8, and a latch 11 is provided on the rear side of the noise reduction box 1, which is plugged into the adjusting hole 10.

[0024] A water collecting plate 12 is provided on the top of the noise reduction box 1, and a water collecting flange 13 is provided around the water collecting plate 12. The water collecting plate 12 extends to the left out of the noise reduction box 1, and a leakage hole 14 is provided on the left side of the water collecting plate 12. A filter screen 15 is provided on the leakage hole 14, and a downpipe 16 is provided downwardly from the leakage hole 14. A water inlet pipe 17 extending to the inside of the noise reduction box 1 is provided to the right at the bottom of the downpipe 16, and an overflow pipe 18 is provided to the left at the bottom of the downpipe 16; a plug interface is provided on the baffle plate 2 on the front side of the noise reduction box 1, and a water box 19 with an open top is plugged into the plug interface.

[0025] A water retaining plate 29 is provided inside the overflow pipe 18 , and the top of the water retaining plate 29 is hinged to the inner top of the overflow pipe 18 .

[0026] A plurality of silencer holes 20 are formed on the long spiral blade 5 .

[0027] A main sound-absorbing wall is provided on the rear side wall inside the noise reduction box 1 , and the main sound-absorbing wall is provided with a first sound-absorbing panel 21 , a first sound-absorbing panel 22 , a second sound-absorbing panel 23 and a second sound-absorbing panel 24 in sequence from front to back.

[0028] A drain port 25 is provided on the water collecting flange 13 at the rear side of the liquid leakage hole 14 of the water collecting plate 12 .

[0029] The mounting mechanism includes a mounting frame 26 , a fixing sleeve 27 is provided on the top of the mounting frame 26 , and a fastening screw is provided on the fixing sleeve 27 . A mounting post 28 is provided on the bottom of the noise reduction box 1 , and the mounting post 28 is plugged into and matched with the fixing sleeve 27 .

[0030] A method for using a noise reduction barrier comprises the following steps: a. Installing the noise reduction box 1: The mounting frame 26 of the mounting mechanism is equipped with side mounting plates and bottom mounting plates. It can be fixed on the side or bottom surface according to actual requirements. The mounting direction of the mounting frame 26 can also be rotated by fixing the sleeve 27 to improve the installation capability of the mounting frame 26. b. Noise reduction and silencing: After the noise reduction box 1 is fixed to both sides of the highway or elevated road, the wind force generated by the movement of motor vehicles drives the large spiral blades 4 and the long spiral blades 5 to rotate. The noise generated by the movement of motor vehicles enters the interior of the noise reduction box 1. When the noise sound waves are incident on the gaps between the long spiral blades 5 and the pores of the silencer holes 20 on the long spiral blades 5, air movement is generated in the gaps and pores. Due to the viscous resistance of the air and the friction resistance of the hole walls, part of the sound energy is converted into heat energy and consumed. The remaining noise is reflected back and forth in the noise reduction box 1 and absorbed by the sound-absorbing panels laid on the inner side, thereby reducing traffic noise; c. Power generation and lighting: The shaft 3 is driven to rotate by the wind generated by the vehicle when it is running. The micro generator 6 at the bottom of the shaft 3 rotates to generate electricity to supply power to the lighting lamp 7. The lighting lamp 7 can realize the lighting function and danger warning function.

[0031] d. Collecting floating dust: The floating dust brought by the wind generated by the driving of the motor vehicle enters the noise reduction box 1. The long spiral blades 5 generate downward wind force when rotating, which guides the floating dust entering the noise reduction box 1 downward into the water box 19 with an open top. The floating dust is absorbed by the water in the water box 19, thereby achieving the purpose of collecting the floating dust. Example

[0032] Select the side of a highway or urban elevated road as the installation location. Use the side mounting plate or bottom mounting plate of the mounting mechanism to fix it according to the actual terrain and needs. Rotate the mounting frame 26 through the fixing sleeve 27 to ensure that the noise reduction box 1 is installed perpendicular to the road direction to improve the noise reduction effect. Use the fastening screws to firmly fix the mounting column 28 at the bottom of the noise reduction box 1 into the fixing sleeve 27 to complete the installation of the noise reduction box 1. According to the actual wind direction and noise reduction requirements, rotate the adjusting roller 8 and adjust the angle of the deflector 9 to form the best angle between the deflector 9 and the wind direction to optimize the wind driving effect. Use the latch 11 to plug and match the adjusting hole 10 to fix the position of the adjusting roller 8 and ensure that the deflector 9 is stable and motionless. When a motor vehicle is driving, the wind force generated drives the large spiral blades 4 and the long spiral blades 5 to rotate. When the noise sound waves are incident on the gaps between the long spiral blades 5 and the silencer holes 20 on the long spiral blades 5, air movement is generated, which consumes part of the sound energy. The remaining noise is reflected back and forth in the noise reduction box 1 and absorbed by the sound-absorbing panels and main silencer walls on the inner side, thereby significantly reducing traffic noise. When the shaft 3 is driven by wind to rotate, it drives the micro-generator 6 to generate electricity. The electricity generated by the micro-generator 6 is transmitted to the lighting lamp 7 through the line, realizing the night lighting and danger warning functions. The floating dust brought by the wind generated by the vehicle when it is driving enters the noise reduction box 1. When the long spiral blades 5 rotate, they generate downward wind force, which guides the floating dust into the water box 19 with an open top. The floating dust is absorbed by the water in the water box 19, keeping the interior of the noise reduction box 1 clean and reducing environmental pollution. The staff can replace or clean the water box 19 regularly; During rainfall, rainwater falls on the water collection plate 12, is filtered through the leakage hole 14 and the filter screen 15, and then enters the downpipe 16. The downpipe 16 guides the rainwater into the water inlet pipe 17, and then flows into the water box 19 or other water storage device inside the noise reduction box 1 for subsequent use. When the rain is heavy, the rainwater is discharged from the drain port 25 of the water collection flange 13 behind the leakage hole 14, preventing excessive water from accumulating in the water collection plate 12. When the water box 19 is full of water, the excess water pushes open the water retaining plate 29 inside the overflow pipe 18 and is discharged out of the overflow pipe 18.

[0033] The micro generator, lighting lamp, sound-absorbing panel and sound-absorbing panel used in the present invention are all conventional technologies, and their structural features will not be described in detail.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A noise reduction barrier, characterized by: It includes a noise reduction box, the bottom of which is provided with a mounting mechanism, the front side of the noise reduction box is open, a baffle is provided at the lower side of the front side of the noise reduction box, the inner sides of the noise reduction box are paved with sound-absorbing panels, two rotating shafts are rotatably provided on the top plate of the noise reduction box, a one-way bearing is provided between the rotating shaft and the top plate, the bottom of the rotating shaft is provided with a mounting block rotatably arranged inside the noise reduction box, a large spiral blade is provided on the rotating shaft above the top plate, and a long spiral blade is provided on the rotating shaft below the top plate.

2. A noise reduction barrier according to claim 1, characterized in that: A micro-generator is respectively provided on the two mounting blocks inside the noise reduction box, and the bottoms of the two rotating shafts are respectively connected to the micro-generator; a lighting lamp is provided on the lower side of the top plate of the noise reduction box, and the micro-generator is connected to the lighting lamp through a circuit.

3. A noise reduction barrier according to claim 2, characterized in that: An adjusting roller is rotatably provided on the top rear side of the noise reduction box, an upwardly arranged guide plate is provided on the adjusting roller, a row of adjusting holes is provided on the lower side of the middle of the adjusting roller, and a latch is provided on the rear side of the noise reduction box, which is plugged into the adjusting hole.

4. The noise reduction barrier according to claim 3, characterized in that: A water collecting plate is provided on the top of the noise reduction box, and water collecting flanges are provided around the water collecting plate. The water collecting plate extends to the left of the noise reduction box, and a leakage hole is provided on the left side of the water collecting plate. A filter is provided on the leakage hole, and a downpipe is provided downward from the leakage hole. A water inlet pipe extending to the inside of the noise reduction box is provided to the right at the bottom of the downpipe, and an overflow pipe is provided to the left at the bottom of the downpipe; a plug interface is provided on the baffle plate on the front side of the noise reduction box, and a water box with an open top is plugged into the plug interface.

5. The noise reduction barrier according to claim 4, characterized in that: A water retaining plate is provided inside the overflow pipe, and the top of the water retaining plate is hinged to the inner top of the overflow pipe.

6. The noise reduction barrier according to claim 5, characterized in that: A plurality of silencer holes are provided on the long spiral blade.

7. The noise reduction barrier according to claim 6, characterized in that: A main sound-absorbing wall is provided on the rear side wall inside the noise reduction box. The main sound-absorbing wall is provided with a first sound-absorbing panel, a first sound-absorbing panel, a second sound-absorbing panel and a second sound-absorbing panel in sequence from front to back.

8. The noise reduction barrier according to claim 7, characterized in that: A drain port is provided on the water collecting flange at the rear side of the liquid leakage hole of the water collecting plate.

9. The noise reduction barrier according to claim 8, characterized in that: The mounting mechanism comprises a mounting frame, a fixing sleeve is provided on the top of the mounting frame, a fastening screw is provided on the fixing sleeve, and a mounting column is provided on the bottom of the noise reduction box, which is plugged into and matched with the fixing sleeve.

10. The method for using the noise reduction barrier according to claim 1, wherein: The following steps are involved: a. Install the noise reduction box: The mounting frame of the installation mechanism is equipped with side mounting plates and bottom mounting plates. It can be fixed on the side or bottom according to actual requirements. The mounting direction of the mounting frame can also be rotated through the fixing sleeve to improve the installation capacity of the mounting frame. b. Noise reduction and silencing: After the noise reduction box is fixed to both sides of the highway or elevated road, the wind force generated by the movement of motor vehicles drives the large spiral blades and long spiral blades to rotate. The noise generated by the movement of motor vehicles enters the noise reduction box. When the noise sound waves are incident on the gaps between the long spiral blades and the pores of the silencer holes on the long spiral blades, air movement is generated in the gaps and pores. Due to the viscous resistance of the air and the friction resistance of the hole wall, part of the sound energy is converted into heat energy and consumed. The remaining noise is reflected back and forth in the noise reduction box and absorbed by the sound-absorbing panels laid on the inner side, thereby reducing traffic noise; c. Power generation and lighting: The shaft is driven by the wind generated by the vehicle, and the micro-generator at the bottom of the shaft rotates to generate electricity to supply power to the lighting lamp, which can provide lighting and hazard warning functions; d. Collecting floating dust: The floating dust brought by the wind generated by the driving of the motor vehicle enters the noise reduction box. The long spiral blades generate downward wind force when rotating, which guides the floating dust entering the noise reduction box downward into the water box with an open top. The floating dust is absorbed by the water in the water box, thereby achieving the purpose of collecting floating dust.

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