High-speed wind power cleaning vehicle and highway cleaning method

Abstract

The invention belongs to the technical field of special motor vehicles, and particularly relates to a high-speed wind power cleaning vehicle and a highway cleaning method.According to the high-speed wind power cleaning vehicle, a wind collecting opening of a wind collecting pipe is arranged in the vehicle running direction, and a blowing opening of the wind collecting pipe is formed in the lower portion of a vehicle frame; therefore, the air collecting pipe can be used for collecting and accelerating air flow generated by high-speed running of the vehicle, garbage on the road surface is blown into the garbage bin below the vehicle frame, heavy garbage is reserved in the garbage bin, light garbage or dust enters the dust bin along with the air flow, and clean air is exhausted after dust is removed through the dust removing device. According to the high-speed wind power cleaning vehicle, a power mechanism does not need to be additionally arranged, garbage on the road surface can be collected, cleared and transported, the operation vehicle speed is not limited by a sweeping brush, water, a draught fan and the like, and the maximum running vehicle speed limited by an expressway can be achieved; and the chassis can be realized by transforming the chassis of the existing vehicle, so that the manufacturing cost is low.

Description

Technical Field

[0001] The invention belongs to the technical field of special motor vehicles, and in particular relates to a high-speed wind cleaning vehicle and a highway cleaning method. Background Art

[0002] Existing highway sweepers are special vehicles that are equipped with all or part of the components such as sweeping brushes (including vertical and horizontal ones), high-pressure water (cleaning) or low-pressure water (dust reduction), and high-pressure fans on a fuel or new energy Class II chassis. Since highways have relatively high requirements for operating speed and cleaning, traditional sweepers are limited by the operating requirements of sweeping brushes, water sprays, and fans, resulting in an operating speed that cannot meet the requirements of highways and has high energy consumption.

[0003] Chinese patent document CN111088771A (201911342687.6) discloses a non-contact high-speed cleaning method and system. This cleaning system utilizes a large-inlet, small-outlet air collection duct to collect the oncoming wind generated by a moving vehicle and utilize it to create positive-pressure air. This creates negative-pressure air at the suction port of a collection pipe, which draws ground material into the pipe, achieving non-contact cleaning and collection of ground material. However, this cleaning system requires a fan for acceleration to effectively utilize wind power, and cannot rely solely on the high-speed air generated by the moving vehicle to clean ground material. Furthermore, the air collection duct of this high-speed cleaning system is located directly below the cab, which affects the layout of components such as the engine, transmission, and drive shaft, requiring significant adjustments to the existing vehicle chassis and resulting in high manufacturing costs. Furthermore, the negative-pressure suction method is only suitable for recovering lightweight materials or fine particles and is difficult to recover larger stones on highways, which can pose a safety hazard. Summary of the Invention

[0004] The main purpose of the present invention is to provide a high-speed wind cleaning vehicle and a highway cleaning method. The present invention sets the air collecting port of the air collecting pipe toward the direction of vehicle travel, and sets the blowing port under the vehicle frame. Since the cross-sectional area of the air collecting port is larger than the cross-sectional area of the blowing port, the air collecting pipe can be used to collect and accelerate the airflow generated by the high-speed travel of the vehicle, and the garbage on the road surface is blown into the garbage bin under the vehicle frame. The heavier garbage is retained in the garbage bin, while the light garbage or dust enters the dust bin with the airflow, and is discharged after the dust removal device removes the dust and discharges the clean air. Since the garbage bin is set under the vehicle frame, the required airflow speed only needs to send the road garbage into the garbage bin. The high-speed wind cleaning vehicle of the present invention does not need to be equipped with a power mechanism to collect and transport the garbage on the road surface. The operating speed is not limited by the sweeping brush, water and fan, and can reach the maximum driving speed limited by the highway. In addition, the present invention can be realized by modifying the chassis of the existing vehicle, and the manufacturing cost is low.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical solution: A high-speed wind cleaning vehicle comprises a cleaning vehicle body, an air collecting pipe, a garbage bin, a material collecting pipe and a dust bin; The cleaning vehicle body includes a cab and a frame, wherein the cab is located above the front end of the frame; The air collecting duct includes an air collecting port and an air blowing port. The air collecting port is higher than the cab and is arranged in the direction of vehicle travel, while the air blowing port is located below the vehicle frame and is inclined toward the road surface. The present invention sets the air collecting port higher than the cab, which allows the air collecting duct to be arranged from top to bottom behind the cab, thus avoiding affecting the arrangement of components such as the drive mechanism and transmission mechanism below the vehicle frame, especially below the cab. Alternatively, the air collecting port can be set at the front of the cab, and the air collecting duct can be set outside the vehicle frame, which can also avoid affecting the arrangement of components such as the drive mechanism and transmission mechanism below the vehicle frame, especially below the cab. The cross-sectional area of the air collecting port is larger than the cross-sectional area of the blowing port; The garbage bin is located below the vehicle frame. The collecting pipe is connected to the air collecting pipe and the garbage bin respectively. The collecting pipe is provided with a collecting port inclined toward the road surface. The collecting port and the blowing port are arranged opposite to each other to form a hood-shaped cleaning area. The air collecting port, the blowing port and the collecting port are all arranged along the width direction of the cleaning vehicle. The connection between the lower end surface of the collecting pipe and the garbage bin is higher than the bottom of the garbage bin; The dust bin is located above the vehicle frame and is connected to the garbage bin via an ascending channel. The ascending channel of the present invention is arranged above the garbage bin and has a hollow structure, which can reduce wind resistance, facilitate smooth air flow and reduce wind resistance, so that the air accelerated air flow can reach the maximum speed and reduce energy loss inside the air duct. A dust removal device is provided in the dust bin, and an exhaust port connected to the dust removal device is provided in the dust bin.

[0006] Preferably, the ratio of the cross-sectional area of the air collecting port to the cross-sectional area of the blowing port is 3:1 to 5:1. Based on the speed requirements for trucks on highways, the speed range can be set to 60-100 km / h, with 100 km / h being the maximum speed limit for trucks on highways. According to the "Technical Specifications for Highway Asphalt Pavement Construction" (JTG F40) and the "Technical Specifications for Highway Cement Concrete Pavement Construction" (JTG F30), the maximum particle size of sand and gravel on highways is 16-26.5 mm (asphalt) or 31.5 mm (concrete). The density of gravel is calculated as 2.5×10³kg / m³, assuming the maximum particle size of gravel is 31.5 mm. A ratio of 3:1 to 5:1 between the cross-sectional area of the air collecting port and the cross-sectional area of the blowing port can meet the requirements for recovering gravel and other heavy objects on highways at speeds between 60-100 km / h, ensuring a clean highway pavement, effectively reducing wear on other vehicles' tires, and preventing gravel from being projected onto the windows of the driver's vehicle, thereby improving highway traffic safety.

[0007] Preferably, the angle between the blowing port and the road surface is 30° to 60°, and the angle between the collecting port and the road surface is 7° to 18°; Auxiliary support wheels are provided under the air collecting pipe and the material collecting pipe; The lower end of the air collecting pipe is provided with a flexible plate in contact with the road surface, and the lower end of the material collecting pipe is provided with a wear-resistant plate, the distance between the wear-resistant plate and the road surface is 3-8 mm. To ensure that road waste is effectively blown up and enters the material collecting pipe, the angle between the blowing port and the road surface is set between 30° and 60°, while the angle between the material collecting port and the road surface is set between 7° and 18°. To ensure recycling efficiency, a flexible plate in contact with the road surface is provided on the lower end of the material collecting pipe, and a wear-resistant plate is provided on the lower end of the material collecting pipe. The distance between the wear-resistant plate and the road surface is 3-8 mm to prevent direct friction between the material collecting pipe and the road surface. Auxiliary support wheels are provided below the air collecting pipe and the material collecting pipe to prevent hard friction between the air collecting pipe and the road surface.

[0008] Preferably, the air collecting pipe further comprises a herringbone connecting pipe provided between the air collecting port and the blowing port; The two branches of the herringbone connecting pipe are respectively arranged on either side of the vehicle frame. Using the herringbone connecting pipe to connect the air collecting port and the blowing port ensures that the air collecting port and the blowing port can be arranged continuously and uninterruptedly along the width of the vehicle, thereby increasing the windward area of the air collecting port and the cleaning area of the blowing port. Furthermore, by respectively arranging the two branches of the herringbone connecting pipe on either side of the vehicle frame, interference with the layout of the vehicle chassis transmission system is avoided, reducing the impact on the existing vehicle chassis structure.

[0009] The present invention preferably further includes a lifting device mounted on the vehicle frame, the lifting device being configured to control the vertical movement of the lower end surfaces of the air collecting pipe, the material collecting pipe, and the garbage bin relative to the vehicle frame. To facilitate passage and maintenance of the vehicle, the lower end surfaces of the air collecting pipe, the material collecting pipe, and the garbage bin can be moved up and down by the lifting device on uneven surfaces, raising the lower end surfaces of the air collecting pipe, the material collecting pipe, and the garbage bin to a height that does not affect passage.

[0010] Preferably, the air collecting port is trumpet-shaped; The width of the blowing port and the collecting port is not less than the width of the cleaning vehicle body. The air collecting port is designed to be trumpet-shaped to facilitate airflow collection. The width of the blowing port and the collecting port is not less than the width of the cleaning vehicle body, thereby achieving more efficient cleaning operations on highway pavement.

[0011] Preferably, the dust removal device includes a plurality of dust removal bags or filter cartridges arranged above the dust bin; The exhaust port is arranged at the rear side of the dust bin, and the direction of the exhaust port is opposite to the direction of vehicle travel; The exhaust port is equipped with a decorative curtain. A dust bag or filter cartridge filters the airflow, ensuring clean exhaust gas. The dust bag or filter cartridge is easy to replace and clean. The exhaust port faces in the opposite direction of vehicle travel, reducing resistance to the vehicle. The decorative curtain prevents foreign objects such as birds from entering the dust bin.

[0012] In the present invention, preferably, the hood-shaped cleaning area is located between the front and rear wheels of the cleaning vehicle body or behind the rear wheels of the cleaning vehicle body, with the vehicle's travel direction as the front side. Placing the hood-shaped cleaning area between the front and rear wheels of the cleaning vehicle body makes the vehicle more stable during high-speed travel; and locating the hood-shaped cleaning area behind the rear wheels of the cleaning vehicle body effectively prevents secondary dust caused by the rear wheels.

[0013] Preferably, the dust bin includes a buffer chamber and a dust removal chamber that are interconnected, a partition plate being provided between the buffer chamber and the dust removal chamber, the dust removal device being disposed within the dust removal chamber, and the ascending passage being connected to the buffer chamber. A partition plate is provided between the buffer chamber and the dust removal chamber, forming a labyrinthine structure between the dust removal chamber and the garbage bin. This allows dust in the airflow ample time and space to settle within the buffer chamber, thereby reducing the burden on the filter element and extending its life.

[0014] The present invention also discloses a highway cleaning method, which utilizes the above-mentioned high-speed wind cleaning vehicle, drives the high-speed wind cleaning vehicle to a preset speed, and accelerates the airflow using an air collecting pipe; The accelerated airflow blows from the nozzle toward the road surface, sending the garbage on the road surface into the garbage bin through the collecting port; The heavier garbage remains in the garbage bin, and the lighter garbage enters the dust bin through the ascending channel with the air flow. The air flow is discharged from the dust bin after the dust is removed by the dust removal device.

[0015] Principle of the present invention: The present invention is driven by wind power, and the wind power is generated during the driving process of the vehicle. The difference from the principle of existing negative pressure cleaning operations is that the wind-generating structure of the present invention is a wind collecting pipe. After the vehicle passes, the air enters the air duct through the wind collecting port and is gradually driven and compressed, and a relatively high-speed airflow is generated when it reaches the nozzle below. The high-speed airflow is guided to the road surface by the nozzle, and the garbage on the road surface (taking the maximum equivalent diameter of sand and gravel on the highway as an example) is driven and collected into the garbage bin at the rear. The present invention separates the garbage bin and the dust bin. Because the garbage bin is set under the vehicle frame, the potential energy that needs to be overcome to blow the garbage into the garbage bin is relatively small, that is, the required airflow velocity requirement is relatively low. The present invention does not need to set other power devices, and only needs to tilt the collecting pipe to ensure that the heavier garbage rolls into the garbage bin along the collecting pipe.

[0016] After entering the bin, large particles settle to the bottom, while lighter debris, such as dust, rises with the airflow into the dust bin above the vehicle frame. The bin is equipped with a dust collector that filters, collects, and settles the dust inside. Clean air is then discharged outside the vehicle, preventing secondary dust. The connection between the collection pipe and the bin is higher than the bottom of the bin, effectively preventing overflow. The high-speed airflow continuously fed through the collection pipe also suppresses overflow.

[0017] Compared with the existing technology, the beneficial effects of the present invention are: the present invention installs the air collecting pipe, garbage bin, material collecting pipe and dust bin of the present invention on the traditional fuel or new energy chassis, and arranges a dust removal device in the dust bin. By leveraging the driving and compression of air by high-speed vehicles, the garbage on the road can be collected and transported without adding any power, and the overall R&D, manufacturing and use costs are relatively low.

[0018] The high-speed wind cleaning vehicle of the present invention has a high working speed, which meets the speed requirement of 60km / h to 100km / h for trucks on highways. The operating speed is not limited by sweeping brushes, water and fans, and can reach the maximum driving speed. It can also collect garbage more cleanly, ensuring the safety of vehicles driving on highways. It is environmentally friendly and energy-saving, and has both economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the high-speed wind cleaning vehicle according to Example 1 of the present invention; Figure 2 A perspective view of the high-speed wind cleaning vehicle of the present invention; Figure 3Schematic diagram of a highway cleaning method according to an embodiment of the present invention; Figure 4 This is a schematic structural diagram of the high-speed wind cleaning vehicle according to Example 2 of the present invention; In the figure, 1 is a cleaning vehicle body, 11 is a cab, and 12 is a vehicle frame; 2 air collecting ducts, 21 air collecting outlets, 22 blowing outlets, 23 herringbone connecting pipes; 3 garbage bins, 4 collection pipes, 41 collection ports; 5 dust bin, 51 exhaust port; 6 dust removal device, 7 ascending channel, 8 flexible plate, 9 wear-resistant plate, 10 storage bin; 100 hood-shaped cleaning area; 501 buffer room, 502 dust removal room, 503 partition plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, a high-speed wind cleaning vehicle includes a cleaning vehicle body 1, an air collecting pipe 2, a garbage bin 3, a material collecting pipe 4 and a dust bin 5.

[0022] The cleaning vehicle body 1 includes a cab 11 and a frame 12 , wherein the cab 11 is located above the front end of the frame 12 .

[0023] The air collecting pipe 2 includes an air collecting port 21 and a blowing port 22. The air collecting port 21 is arranged in the direction of vehicle travel, and the blowing port 22 is located below the frame 12 and tilted toward the road surface. In this embodiment, the air collecting port 21 is arranged above the cab 11, higher than the cab 11.

[0024] The cross-sectional area of the air collecting port 21 is larger than the cross-sectional area of the blowing port 22 .

[0025] The garbage bin 3 is located below the vehicle frame 12. The collection pipe 4 is connected to the air collection pipe 2 and the garbage bin 3, respectively. The collection pipe 4 is provided with a collection port 41 that is angled toward the road surface. This port 41 is positioned opposite the blowing port 22 to form a hood-like cleaning area 100. Specifically, the lower end surface of the collection pipe 4 is shaped like a shovel plate, tilted upward from the road surface. This shovel-shaped lower end facilitates the entry of garbage. The raised rear end of the shovel ensures that garbage entering the garbage bin 3 is effectively collected and retained.

[0026] The connection between the lower end surface of the collecting pipe 4 and the garbage bin 3 is higher than the bottom of the garbage bin 3.

[0027] The dust bin 5 is located above the vehicle frame 12 and is connected to the garbage bin 3 through an ascending channel 7 .

[0028] In this embodiment, the front side is defined as the direction of travel of the vehicle, and the hood-shaped cleaning area 100 is located between the front and rear wheels of the cleaning vehicle body 1. Figure 1 As shown, the air collecting pipe 2 extends from the top of the cab 11 to the bottom of the frame 12, and the rising channel 7 extends from the bottom of the frame 12 to the top of the frame 12 and is connected to the inlet at the top of the dust bin 5. Figure 1 As shown, a storage bin 10 is provided between the air collecting pipe 2 and the ascending channel 7 for storing tools, spare parts, high-speed rescue emergency equipment and other items.

[0029] The dust bin 5 is provided with a dust removal device 6, and the dust bin 5 is provided with an exhaust port 51 connected to the dust removal device 6. The cross-sectional shape of the air collecting port 21 includes but is not limited to a rectangle. The cross-sectional shape of the air duct of the air collecting pipe 2 can be changed according to the situation, but the cross-sectional area at the rear must be smaller than the cross-sectional area at the front.

[0030] The ratio of the cross-sectional area of the air collecting port 21 to the cross-sectional area of the blowing port 22 is 3:1 to 5:1. The present invention can adjust the cross-sectional area ratio of the air collecting port 21 to the blowing port 22 by changing the size of the air collecting port 21 or the blowing port 22 to adapt to different vehicle speeds and achieve efficient road waste recovery (the specific structure is not shown in the figure).

[0031] The included angle between the blowing port 22 and the road surface is 30° to 60°, and the included angle between the collecting port 41 and the road surface is 7° to 18°.

[0032] Auxiliary support wheels are provided below the air collecting pipe 2 and the material collecting pipe 4 (the specific structure is not shown in the figure).

[0033] The distance between the lower end surface of the main body of the air collecting pipe 2 and the main body of the material collecting pipe 4 and the road surface is 30-60 mm.

[0034] The lower end of the air collecting pipe 2 is provided with a flexible plate 8 that contacts the road surface. The lower end of the material collecting pipe 4 is provided with a wear-resistant plate 9. The distance between the wear-resistant plate 9 and the road surface is 3-8 mm. The flexible plate 8 is made of rubber, and the wear-resistant plate 9 is made of non-metallic anti-collision and wear-resistant materials such as nylon or carbon fiber.

[0035] The air collecting pipe 2 further includes a herringbone-shaped connecting pipe 23 provided between the air collecting port 21 and the blowing port 22 .

[0036] The two branches of the herringbone connecting pipe 23 are respectively arranged on both sides of the vehicle frame 12 .

[0037] The high-speed wind-powered cleaning vehicle also includes a lifting device mounted on the vehicle frame 12. This device is used to control the vertical movement of the lower end surfaces of the air collecting pipe 2, the material collecting pipe 4, and the garbage bin 3 relative to the vehicle frame 12. The detailed structure of the lifting device is not shown in the figure. The lifting and lowering of the blowing port and the garbage bin can be achieved by configuring the herringbone connecting pipe 23 and the rising channel 7 as inner and outer sleeves that move relative to each other, or by using a flexible connection (such as a bellows). The actuators include but are not limited to air cylinders, hydraulic cylinders, electric push rods, etc. fixed to the vehicle frame 12.

[0038] The air collecting port 21 is in a trumpet shape with a larger cross-sectional area at the front and a smaller cross-sectional area at the back.

[0039] The widths of the blowing port 22 and the collecting port 41 are not less than the width of the cleaning vehicle body 1 .

[0040] The dust removal device 6 includes a plurality of dust removal bags or filter cartridges arranged above the dust bin 5 .

[0041] The exhaust port 51 is disposed at the rear side of the dust bin 5 , and the direction of the exhaust port 51 is opposite to the direction in which the vehicle travels.

[0042] The exhaust port 51 is provided with a decorative curtain. The decorative curtain can be a loose-leaf structure or a decorative structure made of soft material (which cannot block the discharge of wind). It is beautiful and has a barrier effect to prevent small animals such as birds and beasts from entering or light objects from flying in when not in use.

[0043] The dust bin 5 includes a buffer chamber 501 and a dust removal chamber 502 that are interconnected. A partition plate 503 is provided between the buffer chamber 501 and the dust removal chamber 502 . The dust removal device 6 is provided in the dust removal chamber 502 . The ascending channel 7 is connected to the buffer chamber 501 .

[0044] A highway cleaning method, using the above-mentioned high-speed wind cleaning vehicle, such as Figure 3 As shown, the high-speed wind cleaning vehicle is driven to a preset speed, and the airflow is accelerated by the air collecting pipe 2.

[0045] The accelerated airflow is blown from the blowing port 22 toward the road surface, and the garbage on the road surface is sent into the garbage bin 3 from the collecting port 41 .

[0046] The heavier garbage remains in the garbage bin 3, and the lighter garbage enters the dust bin 5 through the ascending channel 7 along with the air flow. The air flow is discharged from the dust bin 5 after the dust is removed by the dust removal device 6.

[0047] According to the standards of "Technical Specifications for Highway Asphalt Pavement Construction" (JTG F40) and "Technical Specifications for Highway Cement Concrete Pavement Construction" (JTG F30), the maximum particle size of sand and gravel on expressways is 16-26.5mm (asphalt) or 31.5mm (concrete), and the density of gravel is calculated as 2.5×10³kg / m³.

[0048] like Figure 3 As shown, this embodiment takes a design speed of 100 km / h (≈27.78 m / s) (reference system: road surface) and a garbage parameter of an equivalent diameter of 31.5 mm as an example.

[0049] 1. According to Bernoulli's equation (for incompressible fluid, the air velocity is much lower than the speed of sound, approximately 343m / s) - Bernoulli equation (neglecting height variations and viscous damage): (1) In formula (1), v1 represents the air flow rate at the air collecting port, and v2 represents the air flow rate at the blowing port.

[0050] After substituting into v2, the static pressure changes to: (2) In formula (2), A1 represents the cross-sectional area of the air collecting port, and A2 represents the cross-sectional area of the blowing port. Since A1>A2, the result is a negative value, indicating that the static pressure at the outlet is reduced.

[0051] 2. Apply the continuity equation (conservation of mass); The ratio of the cross-sectional area A1 of the air collecting port 21 to the cross-sectional area A2 of the blowing port 22 is 3:1, that is, A1 / A2=3. Under the assumption of incompressible fluid, the outlet flow velocity relative to the vehicle is:

[0052] The vehicle-mounted air collector 21 is typically designed for localized airflow acceleration (e.g., heat dissipation and negative pressure suction). The area ratio rarely exceeds 3:1 to avoid supersonic effects and structural instability. The 3:1 ratio in this embodiment is designed for a maximum vehicle speed of 100 km / h (the limit for trucks on highways). If desired, the setting range can be changed to 3:1 to 5:1 (calculated based on the lower limit of the highway vehicle speed range of 60 km / h).

[0053] 3. Reference frame conversion (from the relative position between the air and the air collecting port 21 to the relative position between the air and the road surface).

[0054] Vehicle reference frame: air is ejected from the nozzle 22 backward at 83.33 m / s (opposite to the direction of vehicle movement).

[0055] Road reference frame: The actual air velocity is the vector superposition of the vehicle velocity (forward) and the ejection velocity (backward):

[0056] In formula (4), the negative sign indicates that the direction is opposite to the vehicle's movement (i.e., backward), and the absolute value is 55.55 m / s.

[0057] 4. Unit conversion and results (convert outlet flow rate to km / h) 55.55m / s×3.6≈200km / h ——Theoretically, the outlet air flow rate (road reference system) is 200km / h (≈56m / s), and the direction is opposite to the direction of vehicle movement.

[0058] 5. Energy dissipation When air flows at high speeds, energy losses from friction, shock waves, and other factors further reduce the actual flow rate. In practical applications, this value needs to be corrected based on compressibility and energy loss. An empirical coefficient can be set based on different application scenarios. For ease of calculation, energy dissipation is ignored here.

[0059] 6. According to the dynamic pressure formula—— Dynamic pressure (Pv) calculation formula: (5) Parameter description: In formula (5), Pv represents the dynamic pressure on the stone, ρ represents the air density, and v represents the wind speed.

[0060] ρ: ρ air density (unit: kg / m 3 ), under standard conditions (20℃, 1 atmosphere), it is about 1.2kg / m³.

[0061] v: wind speed (unit: m / s).

[0062] Unit: The calculation result is in Pascal (Pa), 1Pa=1N / m 2 .

[0063] According to formula (5), the dynamic pressure on the stone is Pv = 0.5 × 1.2 × 56² = 1881.6 Pa Windward area of stones S 石 =πr²=π×(31.5 / 1000 / 2)²=7.8×10 -4 m 2 (6) The force on the stone is F=PvS 石 =1881.6×7.8×10 -4 =1.47N (7) Stone weight m=ρ 石 V 石 =2.5×10³×4 / 3×π×(31.5 / 1000 / 2)³=0.041kg(8) Gravity of stone G = 0.041kg × 9.8N / kg = 0.40N (9) 7. Summary Since the force on the stone is 1.47N> the gravity of the stone is 0.40N, it means that the air outlet of the nozzle can blow the stone, that is, it can overcome the gravity of the stone, make the stone move, and then follow the air flow along the collecting pipe 4 into the garbage bin 3 under the frame 12. Other lighter garbage can also enter the garbage bin 3 more easily with the air flow.

[0064] Example 2 like Figure 4 As shown, the difference from embodiment 1 is that, with the vehicle traveling direction as the front side, the hood-shaped cleaning area 100 is located behind the rear wheel of the cleaning vehicle body 1.

[0065] In this embodiment, the air collecting port 21 is arranged at the rear of the cab 11 and above the frame 12. The upper edge of the air collecting port 21 is higher than the top of the cab 11. The air collecting pipe 2 extends from above the frame 12 to below the frame 12. A storage bin 10 is arranged between the cab 11 and the air collecting pipe 2. The garbage bin 3, the collecting pipe 4 and the rising channel 7 are arranged directly below the dust bin 5. The garbage bin 3 is directly connected to the bottom of the dust bin 5 through the rising channel 7.

[0066] The air collecting port 21 of the air collecting pipe 2 is arranged obliquely upward, so as to be more conducive to collecting the airflow from the front of the vehicle.

Claims

1. A high-speed wind cleaning vehicle, characterized by: It comprises a cleaning vehicle body (1), an air collecting pipe (2), a garbage bin (3), a material collecting pipe (4) and a dust bin (5); The cleaning vehicle body (1) comprises a cab (11) and a vehicle frame (12), wherein the cab (11) is located above the front end of the vehicle frame (12); The air collecting pipe (2) comprises an air collecting port (21) and a blowing port (22), wherein the air collecting port (21) is arranged toward the direction in which the vehicle travels, and the blowing port (22) is located below the vehicle frame (12) and is inclined toward the road surface; The cross-sectional area of the air collecting port (21) is larger than the cross-sectional area of the blowing port (22); The garbage bin (3) is located below the vehicle frame (12); the collecting pipe (4) is connected to the air collecting pipe (2) and the garbage bin (3), respectively; the collecting pipe (4) is provided with a collecting port (41) inclined toward the road surface; the collecting port (41) and the blowing port (22) are arranged opposite to each other to form a hood-shaped cleaning area (100); The connection between the collecting pipe (4) and the garbage bin (3) is higher than the bottom of the garbage bin (3); The dust bin (5) is located above the vehicle frame (12) and is connected to the garbage bin (3) via an ascending channel (7); A dust removal device (6) is provided in the dust bin (5), and an exhaust port (51) connected to the dust removal device (6) is provided in the dust bin (5).

2. The high-speed wind cleaning vehicle according to claim 1, characterized in that: The ratio of the cross-sectional area of the air collecting port (21) to the cross-sectional area of the blowing port (22) is 3:1 to 5:

1.

3. The high-speed wind cleaning vehicle according to claim 1, characterized in that: The included angle between the blowing port (22) and the road surface is 30° to 60°, and the included angle between the aggregate port (41) and the road surface is 7° to 18°; Auxiliary support wheels are provided below the air collecting pipe (2) and the material collecting pipe (4); The lower end surface of the air collecting pipe (2) is provided with a flexible plate (8) in contact with the road surface, and the lower end surface of the material collecting pipe (4) is provided with a wear-resistant plate (9), and the distance between the wear-resistant plate (9) and the road surface is 3-8 mm.

4. The high-speed wind cleaning vehicle according to claim 1, characterized in that: The air collecting pipe (2) further includes a herringbone-shaped connecting pipe (23) provided between the air collecting port (21) and the blowing port (22); The two branch pipes of the herringbone connecting pipe (23) are respectively arranged on both sides of the vehicle frame (12).

5. The high-speed wind cleaning vehicle according to claim 1, characterized in that: It also includes a lifting device arranged on the vehicle frame (12), and the lifting device is used to control the lower end surfaces of the air collecting pipe (2), the material collecting pipe (4) and the garbage bin (3) to move up and down relative to the vehicle frame (12).

6. The high-speed wind cleaning vehicle according to claim 1, characterized in that: The air collecting port (21) is trumpet-shaped; The widths of the blowing port (22) and the collecting port (41) are not less than the width of the cleaning vehicle body (1).

7. The high-speed wind cleaning vehicle according to claim 1, characterized in that: The dust removal device (6) comprises a plurality of dust removal bags or filter cartridges arranged above the dust bin (5); The exhaust port (51) is arranged at the rear side of the dust bin (5), and the direction of the exhaust port (51) is opposite to the direction in which the vehicle travels; A decorative curtain is provided on the exhaust port (51).

8. The high-speed wind cleaning vehicle according to claim 1, characterized in that: With the vehicle's driving direction as the front side, the hood-shaped cleaning area (100) is located between the front and rear wheels of the cleaning vehicle body (1) or behind the rear wheels of the cleaning vehicle body (1).

9. The high-speed wind cleaning vehicle according to claim 1, characterized in that: The dust bin (5) comprises a buffer chamber (501) and a dust removal chamber (502) which are interconnected, a partition plate (503) being provided between the buffer chamber (501) and the dust removal chamber (502), the dust removal device (6) being provided in the dust removal chamber (502), and the ascending channel (7) being connected to the buffer chamber (501).

10. A method for cleaning a highway, using the high-speed wind cleaning vehicle according to any one of claims 1 to 9, characterized in that: The high-speed wind cleaning vehicle is driven to a preset speed, and the air flow is accelerated by using the air collecting pipe (2); The accelerated airflow is blown from the blowing port (22) toward the road surface, and the garbage on the road surface is sent into the garbage bin (3) through the collecting port (41); The heavier garbage is retained in the garbage bin (3), and the lighter garbage is carried by the air flow through the ascending channel (7) into the dust bin (5). The air flow is then discharged from the dust bin (5) after being dusted by the dust removal device (6).

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