Road and bridge noise reduction device and method

Abstract

The invention provides a road and bridge noise reduction device and method, and relates to the technical field of road noise reduction, the road and bridge noise reduction device comprises a base, the upper surface of the base is fixedly connected with a sound insulation plate, one side of the base is provided with an anti-collision plate, the surface of the sound insulation plate is provided with a mounting plate, the side face of the mounting plate is provided with a movable plate, and the two sides of the back face of the sound insulation plate are each provided with a lead screw; a motor is arranged on the inner wall of the base, a photovoltaic panel is arranged on the upper surface of the sound insulation board, a scraping plate is arranged, when the surface of the sound insulation board needs to be cleaned, the motor is started, in the working process of the motor, a worm is driven to rotate through a rotating shaft, in the rotating process of the worm, a lead screw is driven to rotate through a gear, and in the rotating process of the lead screw, the surface of the sound insulation board can be cleaned. The mounting plate is driven to move through the threaded block and the sliding rod, the mounting plate drives the movable plate to move through the positioning rod, in the moving process of the movable plate, dust on the surface of the hollowed-out plate is removed through the scraping plate, and therefore dust removal work on the surface of the sound insulation plate is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of road noise reduction, and particularly relates to a road bridge noise reduction device and method. Background Art

[0002] When a viaduct passes through a residential building and is relatively close to the roadside residential building, sound insulation screens are generally installed on both sides of the road to reduce the impact of noise on residents. Currently, the common sound insulation screens are plate-shaped made of sound insulation materials. Although they can block the propagation of noise to this side, the noise reflected by the sound insulation screen will cross the top of the sound insulation screen on the opposite side and affect the residential building on the opposite side. In this way, the sound insulation screens on both sides reflect each other, and the noise reduction effect is greatly reduced.

[0003] An existing road bridge noise reduction device with the application number 202310026941.1 includes a protective baffle, a plurality of noise reduction blocks and a fixed seat. The fixed seat is fixed under the road surface. A plurality of noise reduction blocks are evenly connected to the front side of the protective baffle. A connecting frame is provided at the bottom of the protective baffle, and the bottom of the connecting frame is slidably connected to the fixed seat. A support arm is provided on the back of the protective baffle, and the support arm is arc-shaped. The protective baffle is slidably connected to the fixed seat through the connecting plate and the connecting seat on the lower side. The fixed seat and the pressing beam clamp the road surface tightly. The noise reduction blocks inside the protective baffle absorb and reflect the noise generated by vehicles, reduce the propagation of noise, and improve the noise reduction effect of the protective baffle.

[0004] During the use of the above device, the sound insulation screen is directly connected to the ground. When the sound insulation screen is impacted, due to the absence of a buffer structure, it is easy to cause relatively large economic losses and the maintenance cost is relatively high. Moreover, there is no dust removal mechanism. During long-term use, a large amount of dust will adhere to its surface, thereby corroding the sound insulation board or the sound absorption board and affecting the sound insulation and noise reduction effect. In addition, when vehicles pass through the road bridge, a large amount of dust will be generated. The traditional noise reduction device cannot handle the generated dust, which affects the health and safety of personnel. Therefore, we propose a civil engineering pile foundation fixing structure to solve the above problems. Summary of the Invention

[0005] The problem to be solved by the present invention is that the existing road bridge noise reduction device is prone to relatively large economic losses and high maintenance costs due to the absence of a buffer structure, and there is no dust removal mechanism. During long-term use, a large amount of dust will adhere to its surface, thereby corroding the sound insulation board or the sound absorption board and affecting the sound insulation and noise reduction effect.

[0006] To solve the above technical problems, the present invention provides a noise reduction device for road bridges, including a base. The upper surface of the base is fixedly connected with a sound insulation board. One side of the base is provided with a collision avoidance board. The surface of the sound insulation board is provided with a mounting plate. The side of the mounting plate is provided with a movable plate. Both sides of the back of the sound insulation board are provided with screw rods. The inner wall of the base is provided with a motor. The upper surface of the sound insulation board is provided with a photovoltaic panel; Wherein: one side of the movable plate is fixedly connected with a scraper. The surface of the scraper is attached to the surface of the sound insulation board. At both ends and the middle of the other side of the movable plate, positioning rods are fixedly connected. The positioning rods are all movably connected with the mounting plate. Springs II are sleeved on the outer sides of the positioning rods. The two ends of the springs II respectively abut against the surfaces of the mounting plate and the movable plate; Preferably, the lower surface of the base is fixedly connected with a bottom plate. Fixing bolts are fixedly connected to both ends of the bottom plate. One side of the base is fixedly connected with a sealing plate.

[0007] Preferably, a hollowed-out plate is fixedly connected to the inner wall of the sound insulation board. A back plate is fixedly connected to one side of the hollowed-out plate. A protection plate is fixedly connected to the other side of the hollowed-out plate. Reflective plates are fixedly connected to the surface of the protection plate in a rectangular array. Sliding grooves are opened on both sides of the sound insulation board.

[0008] Preferably, rubber wheels are arranged at equal intervals in a straight line on the side of the collision avoidance board. Fixing shafts are fixedly connected to the inner walls of the rubber wheels. Both ends of the fixing shafts are fixedly connected to the inner wall of the collision avoidance board. Push rods are arranged at equal intervals on the other side of the collision avoidance board. The other ends of the push rods all extend into the interior of the base and are fixedly connected with baffles. Springs I are sleeved on the outer sides of the push rods. The two ends of the springs I respectively abut against the surfaces of the base and the collision avoidance board.

[0009] Preferably, sliding rods are fixedly connected to both ends of the mounting plate. The other ends of the sliding rods all pass through the sliding grooves and are fixedly connected with threaded blocks. The inner walls of the threaded blocks are all threadedly connected with the sides of the screw rods.

[0010] Preferably, mounting blocks are fixedly connected to the tops of the screw rods. The mounting blocks are all fixedly connected to the surface of the sound insulation board. The bottoms of the screw rods all extend into the inner wall of the base and are fixedly connected with gears. The bottoms of the screw rods are all fixedly connected with limit blocks through bearings. The limit blocks are all fixedly connected with the base.

[0011] Preferably, rotating shafts are fixedly connected to the output ends of the motors. Worms are fixedly connected to the other ends of the rotating shafts. The sides of the worms are all meshed with the sides of the gears. The other ends of the rotating shafts pass through the worms and are fixedly connected with bases through bearings. The bases are all fixedly installed on the inner wall of the base.

[0012] Preferably, a fixing frame is fixedly connected to the lower surface of the photovoltaic panel, and the fixing frame is fixedly installed on the upper surface of the sound insulation board through a buckle.

[0013] The present invention also provides a method for reducing noise on road bridges, which uses the above-mentioned road bridge noise reduction device for noise reduction. The noise reduction method includes the following steps: S1: First, install the device to a suitable position through fixing bolts. Through the provided hollow plate, back plate, and protection plate, and the hollow plate is in a hollow shape, the inside of the device can be made vacuum. Then, through the blockage of the back plate and the protection plate, the sound can be blocked. And diversion grooves are provided on the surfaces of the protection plate and the back plate, which can divert the sound, thereby further improving the noise reduction of the device. And sound insulation materials such as sound insulation cotton can be added inside the hollow plate to improve the sound insulation and noise reduction effect of the device; S2: During use, through the anti-collision plate provided on the front side of the base, when the anti-collision plate is impacted, the rubber wheel rotatably connected to the front side wall can change the impact direction through the rubber wheel, reducing the impact on the anti-collision plate, and cooperating with the first spring provided between the anti-collision plate and the base for shock absorption, so as to better protect the device and reduce the damage of the device; S3: When it is necessary to clean the surface of the sound insulation board, turn on the motor. During the operation of the motor, the motor will drive the worm to rotate through the rotating shaft. During the rotation of the worm, the worm will drive the screw rod to rotate through the gear. During the rotation of the screw rod, the screw rod will drive the mounting plate to move through the threaded block and the sliding rod, so that the mounting plate drives the movable plate to move through the positioning rod. During the movement of the movable plate, the dust on the surface of the hollow plate will be removed by the scraper, thereby realizing the dust removal work on the surface of the sound insulation board; S4: Through the provided photovoltaic panel, in a light environment, it will generate electric energy, thereby realizing the charging of the energy storage mechanism in the device. Then, the motor is controlled through the controller and the energy storage device, thereby providing energy for the dust removal mechanism in the device, which is beneficial to improving the energy-saving effect of the device.

[0014] The technical effects and advantages of the present invention: In the present invention, through the provided scraper, when it is necessary to clean the surface of the sound insulation board, turn on the motor. During the operation of the motor, the motor will drive the worm to rotate through the rotating shaft. During the rotation of the worm, the worm will drive the screw rod to rotate through the gear. During the rotation of the screw rod, the screw rod will drive the mounting plate to move through the threaded block and the sliding rod, so that the mounting plate drives the movable plate to move through the positioning rod. During the movement of the movable plate, the dust on the surface of the hollow plate will be removed by the scraper, thereby realizing the dust removal work on the surface of the sound insulation board.

[0015] In the present invention, by providing a collision prevention plate on the front side of the base, when the collision prevention plate is impacted, the rubber wheels rotatably connected in the front side wall can change the impact direction through the rubber wheels, reduce the impact received by the collision prevention plate, and cooperate with the first spring provided between the collision prevention plate and the base for shock absorption, so as to better protect the device, reduce the damage of the device, and be beneficial to improving the anti-collision effect of the device.

[0016] In the present invention, by providing a hollow plate, a back plate, and a protection plate, and the hollow plate is in a hollow shape, the interior of the device can be made vacuum, and then through the blocking of the back plate and the protection plate, the sound can be blocked. Flow guiding grooves are provided on the surfaces of the protection plate and the back plate, which can shunt the sound, thereby further improving the noise reduction of the device. Sound insulation materials such as sound insulation cotton can be added inside the hollow plate to improve the sound insulation and noise reduction effect of the device. Brief Description of the Drawings

[0017] Figure 1 is a front schematic view of the overall structure of the present invention; Figure 2 is a back schematic view of the overall structure of the present invention; Figure 3 is a sectional schematic view of the sound insulation plate structure of the present invention; Figure 4 is a schematic view of the anti-collision structure of the present invention; Figure 5 of the present invention Figure 2 schematic view of the structure at A; Figure 6 is a sectional schematic view of the scraper structure of the present invention; Figure 7 is a schematic view of the scraper drive structure of the present invention.

[0018] Reference numerals are: 1, base; 101, bottom plate; 102, fixing bolt; 103, sealing plate; 2, sound insulation plate; 201, hollow plate; 202, back plate; 203, protection plate; 2031, reflector; 204, sliding groove; 3, collision prevention plate; 301, rubber wheel; 302, fixed shaft; 303, ejector rod; 3031, baffle; 304, first spring; 4, mounting plate; 401, sliding rod; 402, threaded block; 5, movable plate; 501, scraper; 502, positioning rod; 503, second spring; 6, lead screw; 601, mounting block; 602, gear; 603, limiting block; 7, motor; 701, rotating shaft; 702, worm; 703, base; 8, photovoltaic panel; 801, fixing frame. Detailed Embodiments

[0019] The present invention provides a road and bridge noise reduction device and method, as Figure 1-7As shown in the figure, it includes a base 1. A sound insulation board 2 is fixedly connected to the upper surface of the base 1. An anti-collision board 3 is provided on one side of the base 1. A mounting plate 4 is provided on the surface of the sound insulation board 2. A movable plate 5 is provided on the side of the mounting plate 4. Lead screws 6 are provided on both sides of the back surface of the sound insulation board 2. A motor 7 is provided on the inner wall of the base 1. A photovoltaic panel 8 is provided on the upper surface of the sound insulation board 2; Among them: One side of the movable plate 5 is fixedly connected with a scraping plate 501. The surface of the scraping plate 501 is attached to the surface of the sound insulation board 2. Both ends and the middle of the other side of the movable plate 5 are fixedly connected with positioning rods 502. The positioning rods 502 are all movably connected to the mounting plate 4. Spring two 503 is sleeved on the outside of the positioning rods 502. Both ends of the spring two 503 are respectively abutted against the surfaces of the mounting plate 4 and the movable plate 5. During use, through the provided spring two 503, during its working process, it will push the movable plate 5 through its own elastic force, so that it drives the scraping plate 501 to closely fit the protective plate 203 on the side of the sound insulation board 2, thereby improving the dust removal effect of the device.

[0020] As Figure 1 shown in the figure, a bottom plate 101 is fixedly connected to the lower surface of the base 1. Fixed bolts 102 are fixedly connected to both ends of the bottom plate 101. A sealing plate 103 is fixedly connected to one side of the base 1. During use, through the provided bottom plate 101 and fixed bolts 102, it is convenient for the installation of the device. Through the provided sealing plate 103, it can prevent external dust from entering the inside of the base 1, thereby improving the stability of the device.

[0021] As Figure 3 shown in the figure, a hollow plate 201 is fixedly connected to the inner wall of the sound insulation board 2. A back plate 202 is fixedly connected to one side of the hollow plate 201. A protective plate 203 is fixedly connected to the other side of the hollow plate 201. Reflective plates 2031 are fixedly connected to the surface of the protective plate 203 in a rectangular array. Chutes 204 are provided on both sides of the sound insulation board 2. During use, through the provided chutes 204, during its use process, it can limit the mounting plate 4 through the slide bar 401, thereby improving its stability during the moving process. Through the provided hollow plate 201, back plate 202, and protective plate 203, and the hollow plate 201 is in a hollow shape, the inside of the device can be made vacuum, and then through the blocking of the back plate 202 and the protective plate 203, the blocking of sound can be realized, thereby improving the noise reduction effect of the device.

[0022] As Figure 4As shown in the figure, rubber wheels 301 are arranged at equal intervals on the side of the anti-collision plate 3 in a straight line. Fixed shafts 302 are fixedly connected to the inner walls of the rubber wheels 301, and both ends of the fixed shafts 302 are fixedly connected to the inner wall of the anti-collision plate 3. On the other side of the anti-collision plate 3, ejector rods 303 are arranged at equal intervals. The other ends of the ejector rods 303 all extend into the interior of the base 1 and are fixedly connected to baffles 3031. Springs 304 are sleeved on the outer sides of the ejector rods 303, and both ends of the springs 304 are respectively abutted against the surfaces of the base 1 and the anti-collision plate 3. When in use, through the provided ejector rods 303, during the working process, they can support the anti-collision plate 3, and through the provided rubber wheels 301, when being impacted, the rubber wheels 301 can change the impact direction, reduce the impact received by the anti-collision plate 3, and cooperate with the spring 304 arranged between the anti-collision plate 3 and the base 1 for shock absorption, so as to better protect the device and reduce the damage of the device.

[0023] As Figure 5 shown in the figure, sliding rods 401 are fixedly connected to both ends of the mounting plate 4. The other ends of the sliding rods 401 all pass through the sliding grooves 204 and are fixedly connected to threaded blocks 402. The inner walls of the threaded blocks 402 are all threadedly connected to the side surfaces of the lead screws 6. When in use, through the provided sliding rods 401 and threaded blocks 402, the sliding rods 401 are limited by the sliding grooves 204, thereby improving the stability of the mounting plate 4. The threaded blocks 402 are limited by the lead screws 6, and thereby drive the mounting plate 4 to move through the sliding rods 401, so as to realize the self-cleaning function of the device.

[0024] As Figure 5 and Figure 7 shown in the figure, mounting blocks 601 are fixedly connected to the tops of the lead screws 6. The mounting blocks 601 are all fixedly connected to the surface of the sound insulation plate 2. The bottoms of the lead screws 6 all extend into the inner wall of the base 1 and are fixedly connected to gears 602. The bottoms of the lead screws 6 are all fixedly connected to limit blocks 603 through bearings, and the limit blocks 603 are all fixedly connected to the base 1. When in use, through the provided lead screws 6, they can drive the mounting plate 4 to move through the threaded blocks 402, so as to drive the dust removal mechanism in the device.

[0025] As Figure 7 shown in the figure, rotating shafts 701 are fixedly connected to the output ends of the motors 7. The other ends of the rotating shafts 701 are all fixedly connected to worms 702. The side surfaces of the worms 702 are all meshed with the side surfaces of the gears 602. The other ends of the rotating shafts 701 pass through the worms 702 and are fixedly connected to bases 703 through bearings. The bases 703 are all fixedly installed on the inner wall of the base 1. When in use, through the provided motors 7, they will drive the worms 702 through the rotating shafts 701, and the worms 702 will drive the lead screws 6 through the gears 602, so as to provide power for the cleaning mechanism in the device.

[0026] As Figure 1As shown, a fixing frame 801 is fixedly connected to the lower surface of the photovoltaic panel 8. The fixing frame 801 is fixedly installed on the upper surface of the sound insulation panel 2 through a buckle. Note: The photovoltaic panel 8 is used to obtain electric energy, and then the motor 7 is controlled by the obtained electric energy. Its circuit structure and peripheral devices all belong to the prior art, so they will not be described in detail here.

[0027] The present invention also provides a method for reducing noise on road bridges. The above-mentioned road bridge noise reduction device is used for noise reduction. The noise reduction method includes the following steps: S1: First, install the device to a suitable position through the fixing bolts 102. Through the provided hollow plate 201, back plate 202, and protection plate 203, and the hollow plate 201 is in a hollow shape, the inside of the device can be made vacuum. Then, through the blocking of the back plate 202 and the protection plate 203, the sound can be blocked. And diversion grooves are provided on the surfaces of the protection plate 203 and the back plate 202, which can divert the sound, thereby further improving the noise reduction of the device. And sound insulation materials such as sound insulation cotton can be added inside the hollow plate 201 to improve the sound insulation and noise reduction effect of the device; S2: During the use process, through the anti-collision plate 3 provided on the front side of the base 1, when the anti-collision plate 3 is impacted, the rubber wheel 301 rotatably connected to the front side wall can change the impact direction through the rubber wheel 301, reducing the impact on the anti-collision plate 3. And it is combined with the first spring 304 arranged between the anti-collision plate 3 and the base 1 for shock absorption, so as to better protect the device and reduce the damage of the device; S3: When it is necessary to clean the surface of the sound insulation panel 2, turn on the motor 7. During the operation of the motor 7, the worm 702 will be driven to rotate by the rotating shaft 701. During the rotation of the worm 702, the lead screw 6 will be driven to rotate by the gear 602. During the rotation of the lead screw 6, the mounting plate 4 will be driven to move through the threaded block 402 and the slide bar 401. The mounting plate 4 will drive the movable plate 5 to move through the positioning rod 502. During the movement of the movable plate 5, the dust on the surface of the hollow plate 201 will be removed by the scraper 501, thereby realizing the dust removal work on the surface of the sound insulation panel 2; S4: Through the provided photovoltaic panel 8, it will generate electric energy in a light environment, thereby realizing the charging of the energy storage mechanism in the device. Then, the motor 7 is controlled through the controller and the energy storage device, thereby realizing the supply of energy to the dust removal mechanism in the device, which is beneficial to improving the energy-saving effect of the device.

[0028] It will be understood that the present invention is described by way of some embodiments, and those skilled in the art will know that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. Additionally, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the present invention.

Claims

1. A road bridge noise reduction device, comprising a base (1), characterized in that: A sound insulation board (2) is fixedly connected to the upper surface of the base (1); an anti-collision board (3) is provided on one side of the base (1); a mounting board (4) is provided on the surface of the sound insulation board (2); a movable board (5) is provided on the side of the mounting board (4); screw rods (6) are provided on both sides of the back of the sound insulation board (2); a motor (7) is provided on the inner wall of the base (1); and a photovoltaic panel (8) is provided on the upper surface of the sound insulation board (2); Wherein: a scraper plate (501) is fixedly connected to one side of the movable plate (5), the surface of the scraper plate (501) is in contact with the surface of the sound insulation plate (2), and positioning rods (502) are fixedly connected to both ends and the middle of the other side of the movable plate (5), and the positioning rods (502) are movably connected to the mounting plate (4), and a second spring (503) is sleeved on the outer side of the positioning rod (502), and the two ends of the second spring (503) are respectively against the surface of the mounting plate (4) and the movable plate (5).

2. A road bridge noise reduction device according to claim 1, characterized in that: The lower surface of the base (1) is fixedly connected to a bottom plate (101), both ends of the bottom plate (101) are fixedly connected to fixing bolts (102), and one side of the base (1) is fixedly connected to a sealing plate (103).

3. A road bridge noise reduction device according to claim 1, characterized in that: The inner wall of the sound insulation board (2) is fixedly connected to a hollow plate (201), one side of the hollow plate (201) is fixedly connected to a back plate (202), the other side of the hollow plate (201) is fixedly connected to a protective plate (203), the surface of the protective plate (203) is fixedly connected to a reflective plate (2031) in a rectangular array, and sliding grooves (204) are provided on both sides of the sound insulation board (2).

4. A road bridge noise reduction device according to claim 1, characterized in that: The side surface of the anti-collision plate (3) is linearly and equidistantly arranged with rubber wheels (301); the inner wall of the rubber wheel (301) is fixedly connected with a fixed shaft (302); both ends of the fixed shaft (302) are fixedly connected with the inner wall of the anti-collision plate (3); and top rods (303) are equidistantly arranged on the other side of the anti-collision plate (3); the other ends of the top rods (303) extend to the inside of the base (1) and are fixedly connected with a baffle (3031); and the outer side of the top rods (303) is sleeved with a spring 1 (304); and both ends of the spring 1 (304) are respectively against the surface of the base (1) and the anti-collision plate (3).

5. A road bridge noise reduction device according to claim 1, characterized in that: Both ends of the mounting plate (4) are fixedly connected to a slide rod (401), and the other end of the slide rod (401) passes through a slide groove (204) and is fixedly connected to a threaded block (402), and the inner wall of the threaded block (402) is threadedly connected to the side surface of the screw rod (6).

6. A road bridge noise reduction device according to claim 1, characterized in that: The top end of each of the screw rods (6) is fixedly connected to a mounting block (601), and the mounting block (601) is fixedly connected to the surface of the sound insulation board (2). The bottom end of each of the screw rods (6) extends to the inner wall of the base (1) and is fixedly connected to a gear (602). The bottom end of each of the screw rods (6) is fixedly connected to a limit block (603) via a bearing, and the limit block (603) is fixedly connected to the base (1).

7. A road bridge noise reduction device according to claim 1, characterized in that: The output end of the motor (7) is fixedly connected to a rotating shaft (701), the other end of the rotating shaft (701) is fixedly connected to a worm (702), the side of the worm (702) is meshed with the side of the gear (602), the other end of the rotating shaft (701) passes through the worm (702) and is fixedly connected to a base (703) via a bearing, and the base (703) is fixedly mounted on the inner wall of the base (1).

8. A road bridge noise reduction device according to claim 1, characterized in that: A fixing frame (801) is fixedly connected to the lower surface of the photovoltaic panel (8), and the fixing frame (801) is fixedly mounted on the upper surface of the sound insulation board (2) by means of buckles.

9. A road bridge noise reduction method, using the road bridge noise reduction device according to claims 1-8 to reduce noise, characterized in that: The noise reduction method comprises the following steps: S1: First, the device is installed at a suitable position through the fixing bolt (102), and the hollow plate (201), the back plate (202), and the protective plate (203) are provided, and the hollow plate (201) is hollow, so that the interior of the device can be vacuumed, and then the back plate (202) and the protective plate (203) block the sound, and the surfaces of the protective plate (203) and the back plate (202) are provided with guide grooves, which can divert the sound, thereby further improving the noise reduction of the device, and sound insulation materials such as sound insulation cotton can be added inside the hollow plate (201), thereby improving the sound insulation and noise reduction effect of the device; S2: During use, the anti-collision plate (3) is provided on the front side of the base (1), so that when the anti-collision plate (3) is hit, the rubber wheel (301) rotatably connected to the front side wall can change the impact direction through the rubber wheel (301), thereby reducing the impact on the anti-collision plate (3), and cooperating with the spring 1 (304) provided between the anti-collision plate (3) and the base (1) to cushion the shock, so as to better protect the device and reduce damage to the device; S3: When it is necessary to clean the surface of the sound insulation board (2), the motor (7) is turned on. During the operation, the motor (7) drives the worm (702) to rotate via the rotating shaft (701). During the rotation of the worm (702), the screw (6) is driven to rotate via the gear (602). During the rotation of the screw (6), the mounting plate (4) is driven to move via the threaded block (402) and the sliding rod (401), so that the mounting plate (4) drives the movable plate (5) to move via the positioning rod (502). During the movement of the movable plate (5), the scraper (501) is used to remove dust on the surface of the hollow plate (201), thereby achieving dust removal on the surface of the sound insulation board (2); S4: The photovoltaic panel (8) is provided to generate electric energy under light conditions, thereby charging the energy storage mechanism in the device. The motor (7) is then controlled by the controller and the energy storage device, thereby providing energy to the dust removal mechanism in the device, which is beneficial to improving the energy-saving effect of the device.

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