Road surface cleaning device for expressway

Abstract

The embodiment of the utility model provides a road surface cleaning device for an expressway, and the device comprises a cleaning roller which is used for rolling up and removing foreign matters on a road surface through rotation; the scraping plate is arranged behind the cleaning roller; the dust collector inlet is positioned above one side of the scraping plate and is connected with the dust collector through a pipeline; the vibrating screen is mounted in the dust collector and is used for screening and further cleaning the sucked foreign matters; the collecting box is connected with the vibrating screen and used for storing the screened sundries; wherein the cleaning roller is formed by alternately arranging a plurality of elastic bristles and hard brush heads; the scraping plate comprises a main scraping plate body and an auxiliary scraping plate body, the main scraping plate body is fixed to the rear portion of the sweeping roller, and the main scraping plate body and the auxiliary scraping plate body are connected through a quick disassembly and assembly structure. Through the scheme of the embodiment of the invention, the technical problem that the single operation mode of the existing cleaning device is difficult to adapt to various cleaning tasks due to diversified cleaning requirements, including foreign matter removal, oil stain removal, rubber residue removal and the like, of the highway pavement can be solved.

Description

Technical Field

[0001] This application relates to the field of road engineering machinery and equipment technology, specifically to a road surface cleaning device for highways. Background Technology

[0002] Highway cleaning equipment is a specialized device designed to keep highway surfaces clean and efficiently perform various cleaning tasks. However, due to the diverse needs of highway cleaning, including the removal of foreign objects, oil stains, and rubber residues, existing cleaning equipment typically operates in only a single mode and is unable to fully adapt to these different cleaning tasks. Summary of the Invention

[0003] In view of this, the present disclosure provides a road surface cleaning device for highways, which at least partially solves the problems existing in the prior art.

[0004] This application discloses a road surface cleaning device for highways, comprising:

[0005] Sweeping rollers are used to pick up and remove foreign objects from the road surface by rotating.

[0006] The scraper, located behind the sweeping roller, is used to scrape off oil and rubber residue from the road surface;

[0007] The vacuum cleaner inlet is located above the scraper on one side and is connected to the vacuum cleaner via a pipe.

[0008] A vibrating screen, installed inside a vacuum cleaner, is used to screen and further clean up foreign objects sucked up;

[0009] The collection box, connected to the vibrating screen, is used to store the screened impurities;

[0010] The cleaning roller is composed of multiple alternating flexible bristles and hard brush heads; and

[0011] The scraper includes a main scraper and an auxiliary scraper, wherein the main scraper is fixed behind the sweeping roller, and the main scraper and the auxiliary scraper are connected by a quick-release structure.

[0012] Preferably, the elastic bristles are fixed in grooves on the surface of the cleaning roller, the grooves are evenly distributed along the roller axis, and hard brush heads are installed between adjacent grooves.

[0013] Preferably, the sweeping roller is driven by an adjustable speed motor.

[0014] Preferably, the hardness of the main scraper is less than that of the secondary scraper.

[0015] Preferably, the vacuum cleaner inlet is provided with a movable cover.

[0016] Preferably, the vacuum cleaner inlet is equipped with a sensor for opening the cover when a foreign object is detected.

[0017] Preferably, the bottom of the vacuum cleaner inlet is provided with a scraper.

[0018] Preferably, the vibrating screen is a multi-stage vibrating screen, including a coarse screen and a fine screen.

[0019] Preferably, the vibrating screen is equipped with a self-cleaning device, which consists of an air pump and a spray pipe.

[0020] This disclosure provides a road surface cleaning device for highways, comprising: a sweeping roller for rotating to pick up and remove foreign objects from the road surface; a scraper disposed behind the sweeping roller for scraping off oil stains and rubber residues from the road surface; a vacuum cleaner inlet located above one side of the scraper and connected to a vacuum cleaner via a pipe; a vibrating screen installed inside the vacuum cleaner for screening and further cleaning the sucked-up foreign objects; and a collection box connected to the vibrating screen for storing the screened debris. The sweeping roller is composed of multiple alternating elastic bristles and hard brush heads. The scraper includes a main scraper and a secondary scraper, wherein the main scraper is fixed behind the sweeping roller, and the main scraper and the secondary scraper are connected by a quick-release structure. The solution of this disclosure addresses the technical problem that existing cleaning devices, with their single operating mode, are unable to adapt to various cleaning tasks due to the diverse cleaning needs of highways, including the removal of foreign objects, oil stains, and rubber residues. Attached Figure Description

[0021] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0022] Figure 1 This is a schematic diagram of the structure of a road surface cleaning device for highways as described in this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of a road surface cleaning device for highways described in this utility model after removing the sweeping roller;

[0024] Figure 3 This is a front sectional view of the vacuum cleaner in the road surface cleaning device for highways described in this utility model;

[0025] Figure 4 This is a front sectional view of the vacuum cleaner inlet in a road surface cleaning device for highways as described in this utility model.

[0026] In the diagram: 1. Sweeping roller; 2. Scraper; 3. Vacuum cleaner inlet; 4. Vibrating screen; 5. Collection box; 6. Flexible bristles; 7. Hard brush head; 8. Adjustable speed motor; 9. Main scraper; 10. Secondary scraper; 11. Movable cover plate; 12. Sensor; 13. Scraper strip; 14. Coarse screen; 15. Fine screen; 16. Self-cleaning device; 17. Vacuum cleaner; 18. Air pump; 19. Spray pipe; 20. Connecting frame Detailed Implementation

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] like Figure 1 As shown, a road surface cleaning device for highways according to this application includes a sweeping roller 1, a scraper 2, and a vacuum cleaner inlet 3 (see [reference]). Figure 2 ), Vibrating screen 4 (see Figure 2 The sweeping roller 1 is used to pick up and remove foreign objects from the road surface by rotating; the scraper 2 is located behind the sweeping roller 1 and is used to scrape off oil stains and rubber residues on the road surface; the vacuum cleaner inlet 3 is located above one side of the scraper 2 and is connected to the vacuum cleaner 17 through a pipe, and is used to collect the scraped oil stains and rubber residues; the vibrating screen 4 is installed inside the vacuum cleaner 17 and is used to screen and further clean larger foreign objects sucked up to prevent them from entering the subsequent processing system; the collection box 5 is connected to the vibrating screen 4 and is used to store the screened debris.

[0029] The sweeping roller 1 is a cylindrical structure that rotates to pick up and remove debris from the road surface. The surface of the sweeping roller 1 is equipped with bristles or filaments, which effectively adsorb and sweep away debris and dust during rotation. The roller is connected to an external drive unit via a connecting frame 20, enabling efficient operation on highways. The design of the connecting frame 20 ensures the stability and reliability of the sweeping roller 1 during operation, avoiding incomplete cleaning or equipment damage caused by shaking.

[0030] Scraper 2 is positioned behind the sweeping roller 1, fixed to its rear, and in contact with the ground. The main function of scraper 2 is to remove oil and rubber residue from the road surface, ensuring a clean and unobstructed surface. Scraper 2 is typically made of wear-resistant materials, capable of withstanding prolonged friction without significant wear. Its design ensures a close fit to the ground and provides a degree of elasticity and flexibility to adapt to unevenness and curvature variations in the road surface. This allows scraper 2 to more effectively remove various types of dirt during operation.

[0031] The vacuum cleaner inlet 3 is located above one side of the scraper 2 and is connected to the vacuum cleaner 17 via a pipe. This design ensures that the vacuum cleaner can promptly capture oil and rubber residue scraped off by the scraper 2, preventing them from re-contaminating the road surface. The vacuum cleaner inlet 3 is typically positioned close to the ground and at close range to the scraper 2 to enhance suction. Simultaneously, the connection of the suction pipe is specially designed to reduce airflow loss and noise, ensuring the working efficiency of the vacuum cleaner 17.

[0032] A vibrating screen 4 is installed inside the vacuum cleaner 17 to screen and further clean larger foreign objects sucked in. The vibrating screen 4 is fixed above the vacuum cleaner 17 by a bracket, ensuring that its vibration does not affect the overall stability and working efficiency of the vacuum cleaner 17. The mesh size of the vibrating screen 4 can be adjusted according to specific needs to ensure that larger debris is effectively filtered and sent to the collection box 5, while smaller particles and fine dust continue to enter the subsequent processing system. The design of the vibrating screen 4 makes the device highly flexible and adaptable when handling different types of waste.

[0033] Collection box 5 is connected to vibrating screen 4, and transports the debris screened by vibrating screen 4 through a pipeline. Collection box 5 is typically designed with a large capacity to meet the needs of long-term operation and reduce the inconvenience of frequent cleaning by operators. In addition, collection box 5 is equipped with a convenient loading and unloading structure for quick emptying of collected debris. These designs enable the entire road cleaning device to operate efficiently, reduce downtime, and improve operational efficiency.

[0034] This application aims to address the challenge that existing cleaning devices, with their single-operation mode, cannot meet the diverse cleaning needs of highway surfaces. Specifically, highway surfaces not only contain various debris and dust but also stubborn oil stains and rubber residues. Traditional cleaning devices often only address one or a few of these issues, making comprehensive cleaning difficult. The highway surface cleaning device of this invention integrates a sweeping roller 1, a scraper 2, a vacuum cleaner inlet 3, a vibrating screen 4, and a collection box 5, achieving multi-level cleaning operations from removing foreign objects to scraping off oil stains and rubber residues. First, the sweeping roller 1 efficiently sweeps away fine debris and dust from the ground through rotation; then, the scraper 2 scrapes away more stubborn oil stains and rubber residues from the road surface; finally, the vacuum cleaner inlet 3, in conjunction with the vacuum cleaner 17 and the vibrating screen 4, further collects and processes the dirt generated by the scraper 2. This multi-level, multi-functional design significantly improves cleaning efficiency and effectiveness, ensuring the cleanliness and safety of highway surfaces.

[0035] In one embodiment, such as Figure 1 As shown, the sweeping roller 1 of a highway road cleaning device of this application is composed of multiple elastic bristles 6 and hard brush heads 7 arranged alternately. The elastic bristles 6 are used to clean looser debris, while the hard brush heads 7 are used to handle harder materials. This combination design allows the sweeping device to deal with different types of road debris simultaneously, improving cleaning efficiency. Specifically, the elastic bristles 6 are made of wear-resistant nylon material, ensuring good wear resistance and durability during long-term use. The hard brush heads 7 are made of metal material, enhancing the ability to remove hard debris and improving the overall reliability and durability of the sweeping roller 1.

[0036] In one embodiment, resilient bristles 6 are fixed within grooves on the surface of the cleaning roller 1, these grooves being evenly distributed along the roller's axial direction. Hard brush heads 7 are installed between adjacent grooves, forming an alternating arrangement. The resilient bristles 6 and hard brush heads 7 are mechanically connected to the roller surface, ensuring stable operation during cleaning. For example, screws or rivets can be used to secure the resilient bristles 6 and hard brush heads 7 to the grooves of the roller, ensuring a firm and reliable connection. This design not only simplifies the installation process but also facilitates subsequent maintenance and replacement of worn parts.

[0037] In one embodiment, such as Figure 2As shown, a road surface cleaning device for highways according to this application includes a sweeping roller 1 and an adjustable speed motor 8. The sweeping roller 1 is used to directly contact the road surface and perform sweeping work, while the adjustable speed motor 8 serves as a drive source to drive the sweeping roller 1 to rotate. Specifically, the output shaft of the adjustable speed motor 8 is connected to the shaft of the sweeping roller 1, ensuring that the power output by the motor can be directly transmitted to the sweeping roller 1 to make it rotate. In order to achieve fine sweeping, the adjustable speed motor 8 is equipped with a control system that can dynamically adjust the output speed of the motor according to the specific road conditions. In this way, when encountering different types of dirt or road conditions, the speed of the sweeping roller 1 can be adjusted accordingly to adapt to different cleaning needs, thereby improving the sweeping quality and efficiency.

[0038] For example, the adjustable speed motor 8 can be an AC servo motor that receives signals from the sensor 12 or the operator via an electronic control system, automatically adjusting the motor's output speed. The electronic control system can precisely adjust the motor speed using a PID control algorithm to ensure that the sweeping roller 1 maintains optimal working condition under different operating conditions. The sensor 12 can be installed in front of the sweeping device to detect the road surface condition, such as the degree of dirt and smoothness, and feed this information back to the electronic control system in real time for immediate adjustment of the motor speed. In this way, the entire sweeping process can be more intelligent and efficient.

[0039] In one embodiment, such as Figure 2 As shown, the scraper 2 of the road cleaning device for highways in this application consists of a main scraper 9 and an auxiliary scraper 10, both of which are adjustable. The main scraper 9 is fixed behind the sweeping roller 1, serving as a preliminary cleaner and protector of the road surface. The auxiliary scraper 10 has an adjustable angle to accommodate different types of dirt and meet the cleaning needs of various types of oil stains and rubber residues, thus improving the scraping effect. The main scraper 9 is made of a flexible material to avoid damaging the road surface during cleaning. The auxiliary scraper 10, on the other hand, is made of a high-hardness metal material to ensure effective removal of hard oil stains and rubber residues, improving the overall cleaning effect. To facilitate maintenance and reduce repair costs, the main scraper 9 and the auxiliary scraper 10 are connected by a quick-release structure, facilitating regular replacement or maintenance and extending the service life of the equipment. In other words, the hardness of the main scraper 9 is less than that of the auxiliary scraper 10.

[0040] For example, the main scraper 9 can be made of flexible rubber and fixed to the bracket behind the sweeping roller 1 with bolts. The auxiliary scraper 10 can be made of high-hardness stainless steel and is installed below the main scraper 9 via an adjustment device such as a rotating hinge. The adjustment device includes an adjusting screw and a fixing seat. The angle of the auxiliary scraper 10 can be changed by rotating the adjusting screw to adapt to different road stains. The quick-release structure can use a snap-fit ​​connection to ensure a stable connection between the main scraper 9 and the auxiliary scraper 10, while facilitating quick disassembly and installation.

[0041] In one embodiment, such as Figure 2 and Figure 4 As shown, a road surface cleaning device for highways according to this application is characterized in that the vacuum cleaner inlet 3 is provided with a movable cover 11, which can automatically open to prevent large foreign objects from entering the vacuum cleaner inlet 3, thereby avoiding blockage and ensuring the normal operation of the equipment. Specifically, the movable cover 11 is installed at the vacuum cleaner inlet 3 and is connected to the main body of the device by a hinge, allowing it to rotate up and down within a certain range. The opening and closing of the movable cover 11 is controlled by a sensing system, which includes a sensor 12 and an actuator. When the sensor 12 detects that a large foreign object is approaching the vacuum cleaner inlet 3, the actuator will quickly act, causing the movable cover 11 to open automatically, allowing the foreign object to pass through without entering the vacuum cleaner.

[0042] In one embodiment, the sensing system can be implemented using an infrared sensor 12 or a pressure sensor 12. Specifically, the infrared sensor 12 is installed at the front of the vacuum cleaner inlet 3 to detect the approach of foreign objects. When the infrared sensor 12 detects a large object, the signal is transmitted to the control system, which then drives an actuator (such as an electric push rod or a pneumatic cylinder) to open the movable cover 11. After the foreign object passes through, the control system instructs the actuator to reset the movable cover 11, restoring normal vacuuming operation. This design ensures that the vacuum cleaner inlet 3 is effectively prevented from becoming clogged without affecting normal cleaning operations.

[0043] In one embodiment, a vacuum cleaner inlet 3 of a highway road cleaning device of this application is equipped with a sensor 12 capable of detecting the presence of large foreign objects in real time. Specifically, the sensor 12 is installed above the vacuum cleaner inlet 3, covering the entire area of ​​the vacuum cleaner inlet 3. When a large foreign object approaches or enters the vacuum cleaner inlet 3, the sensor 12 quickly detects its presence. The sensor 12 is connected to the control system and can send a signal to the control system when a foreign object is detected. Subsequently, the control system immediately instructs the cover to open to prevent large foreign objects from entering the cleaning device, avoiding the risk of system failure or downtime, thereby improving the stability and reliability of the entire system.

[0044] In one embodiment, sensor 12 can be implemented using infrared or ultrasonic technology. For example, infrared sensor 12 determines whether a large foreign object is approaching or entering the vacuum cleaner inlet 3 by emitting infrared light and receiving the reflected signal. Ultrasonic sensor 12, on the other hand, determines the presence of a foreign object by emitting ultrasonic waves and receiving the echo, using changes in echo time and intensity. Sensor 12 is connected to the opening and closing mechanism of the cover; when sensor 12 detects a foreign object, the cover opens quickly, allowing the foreign object to pass through smoothly without entering the internal system of the cleaning device.

[0045] In one embodiment, continue to refer to Figure 2 A key feature of this application's highway road cleaning device is the presence of a scraper 13 at the bottom of the vacuum cleaner inlet 3. The scraper 13 is designed to ensure that after large debris is pushed aside, it can further assist in removing small particulate impurities remaining on the road surface, thereby guaranteeing efficient vacuuming and a high level of road cleanliness. The scraper 13 is installed at the very front of the bottom of the vacuum cleaner inlet 3, close to the road surface, and can continuously scrape away fine dust and particles from the road surface as the vacuum cleaner moves.

[0046] The scraper blade 13 is made of a material with a certain degree of elasticity, which can closely conform to different road surface shapes and avoid missed areas due to uneven road surfaces. At the same time, the edges of the scraper blade 13 are designed with tiny serrations, which helps to better cut and capture small impurities, further improving the cleaning effect. In addition, the connection between the scraper blade 13 and the vacuum cleaner inlet 3 is detachable, which facilitates regular replacement or cleaning and ensures long-term effectiveness and safety.

[0047] For example, a horizontal groove can be designed at the bottom of the vacuum cleaner inlet 3, with a set of snap-fit ​​structures inside the groove for fixing the scraper blade 13. Both ends of the scraper blade 13 are respectively embedded in the snap-fit ​​structures within the groove, enabling quick installation and removal. This design not only makes it convenient for users to adjust or replace the scraper blade 13 as needed, but also ensures good fit and durability during long-term use.

[0048] In one embodiment, such as Figure 3 As shown, the vibrating screen 4 of a highway road cleaning device according to this application is a multi-stage vibrating screen 4, including a coarse screen 14 and a fine screen 15. The coarse screen 14 and the fine screen 15 are installed inside the vibrating screen 4 frame and arranged sequentially along the material flow direction. The coarse screen 14 is located at the front end of the vibrating screen 4 and is used for preliminary filtration of large particles of foreign matter. Its screen openings are relatively large to accommodate larger debris commonly found on highways, such as stones and fragments. The fine screen 15 is located at the rear end of the vibrating screen 4 and has relatively small screen openings to further remove fine impurities, such as sand and dust. This multi-stage screening method ensures that the materials entering the subsequent processing system meet the standards.

[0049] In one embodiment, the vibrating screen 4 is fixed to the frame by elastic supports to reduce the impact of vibrations during operation on the entire device. Both the coarse screen 14 and the fine screen 15 are arranged at an angle. Material enters from the top inlet, first passing through the coarse screen 14 for filtration; large particles are retained on the screen surface and discharged through the side outlet. The filtered material continues downstream, passing through the fine screen 15 for further removal of fine impurities, and finally enters the subsequent processing system through the outlet. Furthermore, the screen surface material of the coarse screen 14 and the fine screen 15 can be selected from highly wear-resistant and corrosion-resistant stainless steel to ensure stable operation of the equipment over a long period. For example, the screen thickness of the fine screen 15 is thinner than that of the coarse screen 14, but the pore size is smaller, achieving efficient filtration of fine impurities.

[0050] In one embodiment, continue to refer to Figure 3 This application discloses a self-cleaning device 16 on a vibrating screen 4 of a highway road cleaning apparatus. The self-cleaning device 16 consists of an air pump 18 and a spray pipe 19. It periodically removes blockages from the screen using high-pressure airflow, ensuring the continuous and efficient operation of the vibrating screen 4 and reducing the frequency of manual cleaning. The key components of the self-cleaning device 16 include the air pump 18 and the spray pipe 19. These components work together to achieve automated blockage removal. The air pump 18 generates high-pressure gas, while the spray pipe 19 precisely sprays the high-pressure gas onto the screen, ensuring the removal of blockages.

[0051] The self-cleaning device 16 is installed above or to the side of the vibrating screen 4 to facilitate the aiming of the gas jet at the surface of the screen. The jet pipe 19 is designed with an adjustable angle to cover all parts of the screen, thereby effectively removing any blockages from the screen. In one embodiment, the jet pipe 19 can be configured with multiple nozzles, the angle and position of each nozzle can be adjusted according to actual needs to ensure coverage of all areas requiring cleaning. Specifically, the self-cleaning device 16 can be configured to start periodically, such as automatically starting every few hours of operation, to maintain the cleanliness of the vibrating screen 4.

[0052] In actual operation, when this device is used, the sweeping roller 1 is first connected to the external drive device via the connecting frame 20 and begins to rotate. On the highway, the sweeping roller 1 uses its rotation to pick up and remove foreign objects from the road surface, while simultaneously propelling the entire cleaning device forward. The scraper 2 behind the sweeping roller 1 is fixed to the rear of the roller and contacts the ground, effectively scraping away oil stains and rubber residues from the road surface. The scraper 2 not only cleans the surface but also helps guide these residues to the vacuum cleaner inlet 3. The vacuum cleaner inlet 3 is close to the ground and adjacent to the scraper 2. Once the scraper 2 scrapes the oil stains and rubber residues into the gap between the ground and the device, the vacuum cleaner inlet 3 immediately activates, transferring these residues through a pipe into the vacuum cleaner 17. The vibrating screen 4 inside the vacuum cleaner 17 is fixed above by a bracket. As the vacuum cleaner 17 operates, the vibrating screen 4 begins to vibrate. This vibration process further filters and cleans larger foreign objects sucked up from the ground, preventing them from entering the subsequent processing system, thus ensuring the working efficiency of the cleaning device and the safety of the system. Finally, the debris processed by the vibrating screen 4 is transported through pipes to the collection box 5 for storage. This entire process not only improves the cleanliness of the highway surface but also significantly reduces the difficulty and danger of manual cleaning, ensuring road cleanliness and traffic safety.

[0053] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A road surface cleaning device for highways, characterized in that, include: Sweeping roller (1) is used to roll up and remove foreign objects from the road surface by rotating; Scraper (2), located behind sweeping roller (1), is used to scrape off oil stains and rubber residue on the road surface; The vacuum cleaner inlet (3) is located above one side of the scraper (2) and connected to the vacuum cleaner (17) through a pipe; A vibrating screen (4) is installed inside a vacuum cleaner (17) to screen and further clean up foreign objects sucked up; The collection box (5) is connected to the vibrating screen (4) and is used to store the screened debris; in The cleaning roller (1) is composed of multiple elastic bristles (6) and hard brush heads (7) arranged alternately; and The scraper (2) includes a main scraper (9) and a secondary scraper (10), wherein the main scraper (9) is fixed behind the sweeping roller (1), and the main scraper (9) and the secondary scraper (10) are connected by a quick-release structure.

2. The road surface cleaning device for highways according to claim 1, characterized in that: The elastic bristles (6) are fixed in the grooves on the surface of the cleaning roller (1), the grooves are evenly distributed along the roller axis, and hard brush heads (7) are installed between adjacent grooves.

3. A road surface cleaning device for highways according to claim 1, characterized in that: The sweeping roller (1) is driven by an adjustable speed motor (8).

4. A road surface cleaning device for highways according to claim 1, characterized in that: The hardness of the main scraper (9) is less than that of the secondary scraper (10).

5. A road surface cleaning device for highways according to claim 1, characterized in that: The vacuum cleaner inlet (3) is provided with a movable cover (11).

6. A road surface cleaning device for highways according to claim 5, characterized in that: A sensor (12) is provided on the vacuum cleaner inlet (3) for opening the cover (11) when a foreign object is detected.

7. A road surface cleaning device for highways according to claim 5, characterized in that: The vacuum cleaner inlet (3) has a scraper (13) at the bottom.

8. A road surface cleaning device for highways according to claim 1, characterized in that: The vibrating screen (4) is a multi-stage vibrating screen, including a coarse screen (14) and a fine screen (15).

9. A road surface cleaning device for highways according to claim 8, characterized in that: The vibrating screen (4) is equipped with a self-cleaning device (16), which consists of an air pump (18) and a spray pipe (19).

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