Highway cleaning device for highway engineering

Abstract

The invention discloses a highway cleaning device for highway engineering. The device comprises a movable frame, and a cleaning device, a cleaning device and a collecting box which are sequentially arranged on the movable frame; the cleaning device is used for spraying water to the pavement; the cleaning device comprises a liftable adjusting assembly, a cleaning assembly connected with the adjusting assembly, a conveying assembly and two auxiliary assemblies. The cleaning assembly is provided with a rotatable rotating roller and a plurality of cleaning plates and brushes which can be adjusted in the radial direction, and the cleaning assembly can flexibly adapt to road conditions and abrasion. The conveying assembly is located behind the cleaning assembly to convey garbage, and the inlet height of the conveying assembly is adjustable. The two auxiliary assemblies are arranged on the two sides of an inlet of the conveying assembly and can sweep garbage to the conveying belt. The collecting box is located below the discharging end of the conveying assembly. The road cleaning device is high in integration degree, the brushing pressure of the cleaning assembly is adjustable, the cleaning effect is ensured, the garbage collection rate is improved through the auxiliary assembly, and efficient and automatic road cleaning operation is achieved.

Description

Technical Field

[0001] This invention relates to the field of highway maintenance equipment technology, specifically a highway cleaning device for highway engineering. Background Technology

[0002] Over time, roads accumulate dust, mud, fallen leaves, plastic debris, and stubborn grime from vehicle oil spills. This not only affects the road's appearance and driving safety but also accelerates its aging process. Therefore, regular cleaning and maintenance of roads is crucial.

[0003] Currently, common road cleaning methods mainly rely on water trucks combined with manual sweeping, or the use of specialized sweepers with rotating brushes. However, these methods have the following shortcomings: First, water trucks can only wash away surface dust, and their effectiveness in removing dirt embedded in road cracks or firmly adhered is limited. Furthermore, water utilization is low, and wastewater and garbage are splashed everywhere, requiring subsequent manual cleaning. Second, the contact pressure and cleaning range of the rotating brushes in traditional sweepers are usually fixed, making it difficult to adapt to uneven road surfaces or adjust to different levels and types of dirt. Once the brush bristles wear out, the overall replacement cost is high, and uneven wear leads to a decrease in cleaning effectiveness. Third, the sweeping and garbage collection processes in existing equipment are often poorly coordinated, especially for granular or wet, sticky garbage, which is prone to clogging or spillage between the brushes and the conveyor belt or collection port, resulting in low collection efficiency and often requiring secondary operations.

[0004] Therefore, there is an urgent need for an integrated road cleaning device that is highly efficient, adaptable, and capable of effectively cleaning and collecting various types of road debris. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a highway cleaning device for highway engineering, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, a specific embodiment of the present invention provides a highway cleaning device for highway engineering, comprising a mobile frame, a cleaning device, a sanitation device, and a collection box. The mobile frame is equipped with wheels at its bottom. The cleaning device includes a cleaning component, which is fixedly disposed at the front of the mobile frame. The sanitation device includes an adjustment component, a sanitation component, a conveying component, and two auxiliary components. The adjustment component is vertically and flexibly connected to the middle of the mobile frame. The sanitation component is adjustablely connected to the mobile frame and connected to the lifting part of the adjustment component. The conveying component is adjustablely connected to the mobile frame, located behind the sanitation component, and connected to the adjustment component. The two auxiliary components are rotatably disposed on both sides of the inlet end of the conveying component. The collection box is fixedly disposed within the mobile frame and located below the outlet end of the conveying component.

[0007] In addition, the highway cleaning device for highway engineering proposed in this application may also have the following additional technical features: In one embodiment of this application, the cleaning assembly includes a water tank, a pump, a water supply pipe, a sprinkler pipe, and multiple spray nozzles. The water tank is fixedly disposed on the inner side wall of the movable frame; the pump is fixedly disposed on one side of the water tank; one end of the water supply pipe is connected to the water tank via the pump; the sprinkler pipe is fixedly disposed at the bottom of the front end of the movable frame, and its top is connected to the other end of the water supply pipe; the multiple spray nozzles are evenly disposed on the sprinkler pipe.

[0008] In one embodiment of this application, the adjustment assembly includes a mounting column, a first drive motor, and a first threaded rod. The mounting column is vertically disposed in the center of the movable frame, and sliding grooves are provided at both ends of one side wall of the mounting column. The first drive motor is fixedly disposed at the top of the movable frame. The first threaded rod is connected to the output end of the first drive motor and is threadedly connected to the mounting column.

[0009] In one embodiment of this application, the cleaning assembly includes two first support rods, two damping springs, a rotating roller, a second drive motor, a first gear, a second gear, a chain, a third drive motor, a gear disk, four third gears, four second threaded rods, four slots, four cleaning plates, and four sets of brushes. The two first support rods are movably disposed within the two sliding grooves. One end of each of the two damping springs is connected to one of the two first support rods, and the other end is connected to the inner wall of each of the two sliding grooves. The rotating roller is rotatably disposed between the two first support rods, and a cavity is provided inside the rotating roller. The second drive motor is fixedly disposed on the side wall of one of the first support rods. The first gear is fixedly connected to the output shaft of the second drive motor. The second gear is rotatably disposed within the... The rotating roller is mounted on a shaft at one end; the chain is meshed between the first gear and the second gear; the third drive motor is fixedly disposed in a cavity within the rotating roller; the gear disk is rotatably disposed in a cavity within the rotating roller and connected to the output end of the third drive motor; four third gears are rotatably disposed in cavities within the rotating roller and mesh with the gear disk; four second threaded rods are rotatably disposed radially within the rotating roller and one end is connected to the four third gears respectively; four slots are equidistantly disposed axially on the roller surface of the rotating roller; four cleaning plates are slidably engaged in the four slots and one end is threadedly connected to the four second threaded rods respectively; four sets of brushes are fixedly disposed on the outer walls of the four cleaning plates respectively.

[0010] In one embodiment of this application, the conveying assembly includes two conveying rollers, a conveyor belt, two second support rods, two adjusting rods, two fixing bolts, a mounting bracket, a fourth drive motor, a track slot, and a connecting rod. The two conveying rollers are rotatably and laterally arranged within the movable frame. The conveyor belt is sleeved on the two conveying rollers. One end of each of the two second support rods is fixedly connected to one side of the mounting column. The two adjusting rods are slidably sleeved on the two second support rods, and each adjusting rod has a plurality of insertion holes spaced apart along its length. One of the lower conveying rollers... The first drive motor is rotatably disposed between the two adjusting rods; the second fixing bolts are threaded onto the two second support rods respectively, for passing through the second support rods and inserting into the selected insertion holes of the adjusting rods for fixing; the mounting bracket is disposed on the outside of the lower one of the two conveying rollers, and the conveying roller is rotatably disposed on the mounting bracket; the fourth drive motor is fixedly connected to the end of the other conveying roller; the track slot is disposed on the inner wall of the movable frame; one end of the connecting rod is slidably disposed in the track slot, and the other end is connected to the shaft end of the conveying roller near the fourth drive motor.

[0011] In one embodiment of this application, both auxiliary components include a second gear disk, a transmission gear, a universal joint coupling, a first pulley, a second pulley, a transmission belt, and two actuating brushes. The second gear disk is fixedly connected to one end of a conveyor roller supported by the mounting frame. The transmission gear is rotatably disposed within the mounting frame and meshes with the second gear disk. The universal joint coupling is disposed within the mounting frame, with one end fixedly connected to the shaft of the transmission gear. The first pulley is rotatably disposed on the mounting frame, with its bottom fixedly connected to the other end of the universal joint coupling. The second pulley is rotatably disposed on the mounting frame. The transmission belt is sleeved on the first pulley and the second pulley. The two actuating brushes are respectively fixedly disposed on the tops of the first pulley and the second pulley.

[0012] In one embodiment of this application, the plurality of water nozzles are high-pressure nozzle groups, which are arranged along the width direction.

[0013] In one embodiment of this application, the brush of the cleaning component has a mixed structure of steel wire and nylon filament.

[0014] In one embodiment of this application, the auxiliary component's actuating brush comprises a plurality of actuating elements extending along its rotation axis, used to sweep waste onto the conveyor belt.

[0015] In one embodiment of this application, a control terminal is also included, which is electrically connected to the pump of the cleaning device, the first drive motor, the second drive motor, the third drive motor, and the fourth drive motor of the cleaning device.

[0016] The advantages of this invention compared to existing technologies are: (1) The cleaning device pre-wets and rinses the road surface, softens stubborn dirt, prepares it for subsequent cleaning, and improves cleaning efficiency.

[0017] (2) Through the transmission of the third drive motor, gear disk, third gear set, and second threaded rod, the extension and retraction of the four cleaning plates and their brushes in the radial direction of the rotating roller can be independently controlled, thereby flexibly adjusting the bristle extension length and working pressure. This can increase the pressure when facing stubborn dirt and automatically compensate after the bristles wear, maintaining a constant cleaning effect and extending the overall life of the brush. The rotating roller is driven by the second drive motor to achieve efficient cleaning. The damping spring and groove design give the cleaning components a certain floating buffering capacity to adapt to road surface undulations.

[0018] (3) The adjustment component can raise and lower the cleaning component as a whole. The tilt angle and inlet height of the conveying component linked with it can also be adjusted by the adjustment rod to ensure good connection with the outlet of the cleaning component and facilitate the transfer of garbage.

[0019] (4) The two auxiliary components are driven by the power of the conveyor roller through gears, universal joints and other mechanisms. The brush on them can push the garbage swept to both sides of the cleaning component inward and concentrate it on the conveyor belt, which solves the problem of edge garbage collection and greatly improves the garbage collection rate.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an overall perspective view of a highway cleaning device for highway engineering according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a highway cleaning device for highway engineering in one embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of a highway cleaning device for highway engineering according to one embodiment of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the internal structure of a highway cleaning device for highway engineering according to one embodiment of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the internal structure of a highway cleaning device for highway engineering according to one embodiment of the present invention. Figure 3 ; Figure 6 This is a schematic diagram of the internal partial structure of a highway cleaning device for highway engineering according to an embodiment of the present invention. Figure 1 ; Figure 7 This is a schematic diagram of the internal partial structure of a highway cleaning device for highway engineering according to an embodiment of the present invention. Figure 2 ; Figure 8 for Figure 2 A magnified structural diagram of part A in the diagram; Figure 9 for Figure 5A schematic diagram of the enlarged structure of part B in the diagram; Figure 10 for Figure 6 A schematic diagram of the enlarged structure of part C in the diagram; Figure 11 This is a schematic diagram of the control connection of a highway cleaning device for highway engineering in one embodiment of the present invention.

[0023] Explanation of reference numerals in the attached figures: 1. Moving frame; 2. Cleaning device; 3. Cleaning unit; 4. Collection box; 5. Control terminal; 21. Cleaning assembly; 31. Adjustment assembly; 32. Cleaning assembly; 33. Conveying assembly; 34. Auxiliary assembly; 211. Water tank; 212. Pump; 213. Water pipe; 214. Sprinkler pipe; 215. Spray nozzle; 311. Mounting column; 3111. Slide groove; 312. First drive motor; 313. First threaded rod; 321. First support rod; 322. Damping spring; 323. Rotating roller; 324. Second drive motor; 325. First gear; 326. Second gear; 327. Chain; 328. Third drive motor; 329. Gear disk; 3210. Third gear; 3211. Second threaded rod; 3212. Slot; 3213. Cleaning plate; 3214. Brush; 331. Conveyor roller; 332. Conveyor belt; 333. Second support rod; 334. Adjusting rod; 335. Fixing bolt; 336. Mounting bracket; 337. Fourth drive motor; 338. Track slot; 339. Connecting rod; 341. Second gear disk; 342. Transmission gear; 343. Universal joint coupling; 344. First pulley; 345. Second pulley; 346. Transmission belt; 347. Actuating brush. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1 to 11As shown in the figure, a highway cleaning device for highway engineering according to an embodiment of the present invention comprises a mobile frame 1 serving as a basic support and mobile platform, and a cleaning device 2, a cleaning device 3, and a collection box 4 sequentially integrated on the mobile frame 1 according to the work flow. The functional modules are arranged sequentially along the direction of travel, forming a continuous "pre-wetting-sweeping-collection" production line. The cleaning device 2 is fixedly installed at the lower front of the mobile frame 1 and is used to spray water to wet the road surface before sweeping operations. The cleaning device 3 is installed in the middle of the mobile frame 1 and is the component that performs the core sweeping and waste collection functions. The collection box 4 is detachably installed at the rear of the mobile frame 1 to hold the finally collected waste.

[0026] In one embodiment of this application, the mobile frame 1 serves as the skeleton of the entire device, typically a three-dimensional rectangular frame structure welded from channel steel, square tubing, or other shaped steel, possessing sufficient rigidity and strength to support all functional components and operational loads. A wheel is installed at each of the four corners of the bottom of the mobile frame 1. To facilitate manual movement and precise positioning during non-operational periods, a push handle is fixedly installed on the rear side wall of the mobile frame 1. Furthermore, considering the daily maintenance, repair, and cleaning of the waste collection bin 4, two hinged doors are provided at the top of the mobile frame 1, above the cleaning device 3 and the collection bin 4. These two doors can be opened to the sides, providing operators with a direct and convenient top access for operation and observation, facilitating the replacement of worn brushes 3214, inspection of transmission components, or emptying of the collection bin 4.

[0027] In one embodiment of this application, the cleaning device 2 serves to provide cleaning water and form a uniform water curtain to pre-wet and rinse the road surface, soften adhering dirt, and reduce dust during subsequent sweeping. Its core component is the cleaning assembly 21. This cleaning assembly 21 is fixedly installed inside the lower front section of the movable frame 1.

[0028] Specifically, the cleaning assembly 21 mainly comprises several parts: water storage, pressurization, delivery, and spraying. A rectangular water tank 211 is securely fixed to a suitable position on the inner wall of the movable frame 1, such as the side of the frame, by a bracket, for storing operating water. A pump 212, typically a high-pressure centrifugal pump or a plunger pump, is fixedly installed on the side of the water tank 211. The inlet of the pump 212 is connected to the interior of the water tank 211 via a pipe. A water delivery pipe 213, with its inlet end connected to the outlet of the pump 212, extends to the lower front end of the movable frame 1. A sprinkler pipe 214 is horizontally fixed to the crossbeam at the bottom front end of the movable frame 1, with its length approximately equal to the operating width of the device. The top of the sprinkler pipe 214 is connected to the outlet end of the water delivery pipe 213 via an elbow joint. A series of mounting holes are provided at approximately equal intervals along the length of the sprinkler pipe 214, with a spray nozzle 215 installed in each mounting hole. The spray nozzles 215 are preferably fan-shaped or conical high-pressure nozzles with a specific angle. This group of high-pressure nozzles is arranged along the sprinkler pipe 214 to form a high-pressure nozzle group. When the pump 212 is started, the water in the water tank 211 is pumped into the water delivery pipe 213, and then into the sprinkler pipe 214. Finally, it is sprayed out from all the high-pressure spray nozzles 215 at a certain pressure and angle, forming a uniform water curtain covering the entire working width, impacting and initially cleaning the road surface.

[0029] In one embodiment of this application, the cleaning device 3 is the core functional module of the invention, responsible for mechanically sweeping the wetted road surface and collecting and conveying the swept garbage backward. It is a complex but highly coordinated integrated mechanism, consisting of an adjustment component 31, a cleaning component 32, a conveying component 33, and two auxiliary components 34.

[0030] Specifically, the main function of the adjustment component 31 is to achieve overall lifting and lowering of the working height of the cleaning component 32 to adapt to different road conditions, equipment transportation status, or to avoid obstacles. It adopts a motor-driven threaded lifting mechanism, which has self-locking and stability.

[0031] The component includes a mounting column 311 serving as the main lifting support. The mounting column 311 is a vertically mounted, robust metal column whose lower end is fixedly connected to the bottom crossbeam of the moving frame 1 via a flange and bolts. On one side of the mounting column 311 facing the rear of the device (i.e., the side where the cleaning component 32 is located), there is a vertical groove 3111 with a T-shaped or dovetail-shaped cross-section. A first drive motor 312, such as a servo motor or stepper motor with a reducer, is securely fixed to the top crossbeam inside the moving frame 1 via a motor mounting plate. The upper end of a first threaded rod 313 is coaxially connected to the output shaft of the first drive motor 312 via a coupling, while its lower end is supported on the bottom crossbeam of the moving frame 1 via a thrust bearing seat, thus restricting it to rotation only around its own axis and preventing vertical movement. The middle section of the first threaded rod 313 passes through the mounting column 311 and is connected to the mounting column 311 via a threaded pair. Specifically, a nut matching the first threaded rod 313 can be embedded inside the mounting post 311, or an internal threaded hole can be machined directly at the corresponding position on the mounting post 311. When the first drive motor 312 is energized and rotates, it drives the first threaded rod 313 to rotate. Since the axial position of the first threaded rod 313 is limited by the bearing seat, its rotational motion is converted into a linear lifting motion of the mounting post 311, which is threaded to it, in the vertical direction, thereby realizing the height adjustment of the entire cleaning assembly 32 suspended on the mounting post 311 and its associated components.

[0032] In one embodiment of this application, the cleaning component 32 is a part that directly performs the road sweeping task, and its unique feature is that the extension length of the bristles (i.e., the pressure on the ground) can be adjusted synchronously and precisely. It is mounted on the mounting post 311 of the adjustment component 31 and rises and falls accordingly.

[0033] The specific structure includes a supporting floating mechanism, a rotary drive mechanism, and a radial adjustment mechanism.

[0034] The supporting floating mechanism consists of two first support rods 321 and two damping springs 322. The two first support rods 321 are sliders or rods whose shapes match the grooves 3111, and they are slidably fitted into the two vertical grooves 3111 on the mounting post 311. A damping spring 322 is connected between the top inner wall of each groove 3111 and the top (or upper boss) of the corresponding first support rod 321. The damping springs 322 provide a constant downward pressure to the cleaning assembly 32, ensuring that the brush 3214 effectively contacts the road surface. Simultaneously, when encountering localized road surface protrusions, the first support rods 321 are allowed to slide upwards within the grooves 3111, compressing the springs and providing cushioning protection to prevent damage to the equipment from hard impacts.

[0035] Rotary drive mechanism: used to drive the brush body to rotate. A long cylindrical rotating roller 323 is rotatably mounted laterally (perpendicular to the direction of travel) between two first support rods 321 via bearings and bearing seats on its two end journals. The rotating roller 323 is hollow, forming a cylindrical cavity inside. A second drive motor 324 is fixedly mounted on the side wall of one of the first support rods 321 via a motor mount. A first gear 325 is fixedly mounted on the output shaft of the second drive motor 324 via a key connection. A second gear 326 is mounted on the journal at one end of the rotating roller 323 via a bearing, and this second gear 326 rotates relative to the shaft of the rotating roller 323. A chain 327 surrounds and meshes with the first gear 325 and the second gear 326, forming a chain drive pair. When the second drive motor 324 starts, the power is transmitted sequentially through the first gear 325, the chain 327, and the second gear 326 to the shaft of the rotating roller 323, thereby driving the entire rotating roller 323 to rotate at high speed around its own axis.

[0036] Radial adjustment mechanism: This is the core of the brush pressure adjustment mechanism, entirely integrated inside the rotating roller 323. A third drive motor 328 (typically a miniature geared motor) is fixedly mounted at the center of the internal cavity of the rotating roller 323 via a mounting bracket. A gear disk 329 is coaxially fixedly connected (or connected via a coupling) to the output shaft of the third drive motor 328. The gear disk 329 is supported by bearings on a bracket inside the rotating roller 323, allowing it to rotate freely relative to the inner wall of the rotating roller 323. Four third gears 3210 are rotatably mounted at 90-degree intervals around the circumference of the internal cavity of the rotating roller 323, respectively, via short shafts and bearings. All four third gears 3210 mesh with the centrally located gear disk 329. Four second threaded rods 3211 are arranged radially along the rotating roller 323. The inner end of each second threaded rod 3211 (the end closest to the axis of the rotating roller) is fixedly connected to the shaft of a corresponding third gear 3210 via a coupling or spline, while its outer end (the end away from the axis) is threaded. On the cylindrical roller surface of the rotating roller 323, four elongated slots 3212, corresponding one-to-one with the second threaded rods 3211 and extending radially, are machined at equal intervals along the generatrix direction. Four cleaning plates 3213, whose shapes match the slots 3212, are slidably embedded (locked) into these four slots 3212. Each cleaning plate 3213 has an internal threaded hole machined at the center of its inner end face (the side facing the axis of the rotating roller), forming a threaded transmission pair with the corresponding second threaded rod 3211. Four sets of brushes 3214 are fixedly installed on the outer wall of the four cleaning plates 3213 (i.e., the side facing the road surface away from the axis of the rotating roller) by bolts or adhesive. The four sets of brushes 3214 are preferably woven from a mixture of wear-resistant steel wire and nylon filaments, which possess both rigidity and elasticity. Their operation is as follows: When the extension length of the brushes 3214 needs adjustment, the third drive motor 328 is activated, driving the gear disk 329 to rotate. The gear disk 329 simultaneously drives the four meshing third gears 3210 to rotate synchronously, in the same direction, and at the same speed. The rotation of the four third gears 3210 drives the four second threaded rods 3211 to rotate synchronously. Since the cleaning plate 3213 is confined within the slot 3212 and can only move radially, the rotational movement of the second threaded rods 3211 is converted into radial linear movement of the cleaning plate 3213 through the threaded joint, thereby achieving synchronous and equidistant extension and retraction of the four sets of brushes 3214, achieving the purpose of adjusting the brush bristle pressure on the ground and the effective cleaning width. When the rotating roller 323 is driven to rotate by the second drive motor 324, the entire radial adjustment mechanism and the four cleaning plates 3213, together with the brushes 3214 on them, rotate as a whole to sweep the road surface.

[0037] In one embodiment of this application, the conveying component 33 is located behind the cleaning component 32 and is used to receive the garbage swept up and thrown backward by the cleaning component 32, and to convey it upward at an angle to the collection box 4. Its inlet height and tilt angle are adjustable to ensure good matching with the garbage throwing trajectory of the cleaning component 32.

[0038] The component includes a conveying mechanism, a height and tilt adjustment mechanism, and an auxiliary support mechanism.

[0039] The conveying mechanism consists of two conveyor rollers 331 and a conveyor belt 332 surrounding them. The two conveyor rollers 331 are mounted laterally and parallel within the movable frame 1 via bearing seats, with one roller at a lower position (defined as the inlet end or lower end) and the other at a higher position (defined as the outlet end or upper end). A closed conveyor belt 332, such as a rubber conveyor belt with sidewalls and anti-slip texture, is tightly fitted around the two conveyor rollers 331.

[0040] Height tilt adjustment mechanism: Used to adjust the height of the lower (inlet end) conveyor roller 331, thereby changing the tilt angle of the conveyor belt 332. One end of each of the two second support rods 333 is horizontally and securely welded or bolted to the side of the mounting post 311 of the adjustment assembly 31. Two adjusting rods 334 are slidably fitted onto the two second support rods 333, like sleeves. A series of insertion holes are machined at equal intervals along the length of each adjusting rod 334. The journals at both ends of the lower conveyor roller 331 (i.e., the inlet end conveyor roller) are rotatably mounted between the free ends of the two adjusting rods 334 via bearings. Two fixing bolts 335 are threaded onto the side walls of the two second support rods 333, respectively. When adjustment is required, the fixing bolts 335 are loosened, allowing the adjusting rod 334 to be manually pulled out, thereby changing its length extending beyond the second support rod 333, and thus changing the installation height of the lower conveyor roller 331. After adjusting to the appropriate position, tighten the fixing bolt 335 so that the tip of the bolt is inserted into the corresponding adjusting rod 334 socket, thus locking the two together. By independently adjusting the extension length of the adjusting rods 334 on both sides, the levelness of the conveyor belt 332 can also be finely adjusted.

[0041] Auxiliary support and drive mechanism: A robust mounting bracket 336 (which can be L-shaped or portal-shaped) is fixedly installed on the side or bottom of the movable frame 1 to provide additional support for the bearing housing of the lower conveyor roller 331, ensuring its stable operation. A fourth drive motor 337 is fixedly installed on the movable frame 1 via a motor mount, and its output shaft is coaxially fixedly connected to the shaft end of the upper conveyor roller 331 (discharge end) via a coupling, providing rotational power to the conveyor roller 331, thereby driving the entire conveyor belt 332. A specific-shaped (e.g., arc-shaped) track groove 338 is formed on the inner wall of the movable frame 1. One end of a connecting rod 339 is slidably mounted in this track groove 338 via a slider or bearing, and the other end is hinged to the shaft end of the conveyor roller 331 (i.e., the upper conveyor roller) near the fourth drive motor 337. This design allows the installation position of the upper conveyor roller 331 to be adaptively adjusted by the sliding of the connecting rod 339 within the track slot 338 when the height of the lower conveyor roller 331 is changed by adjusting the rod 334, thereby causing the tilt angle of the conveyor belt 332 to change. This ensures that the conveyor belt 332 is always kept in a proper tension, preventing slippage due to excessive looseness or damage due to excessive tightness.

[0042] In one embodiment of this application, two auxiliary components 34 are provided, arranged symmetrically on both sides of the inlet end of the conveyor component 33. Their function is to sweep the garbage swept to the sides of the road by the cleaning component 32 that fails to fall directly onto the conveyor belt 332, and then push it inwards to the inlet area of ​​the conveyor belt 332, solving the problem of collecting garbage from corners. Their power comes from the operation of the conveyor component 33, eliminating the need for an additional drive motor.

[0043] Each auxiliary component 34 is structured as follows: A second gear disc 341 is fixedly mounted on the same end shaft of the lower conveyor roller 331 supported by the mounting bracket 336. A drive gear 342 is rotatably mounted on a small support plate inside the mounting bracket 336 via a short shaft and bearing, its teeth meshing with the teeth of the second gear disc 341. One end of a universal joint coupling 343 is fixedly connected to the short shaft of the drive gear 342. A first pulley 344 is rotatably mounted on an extension plate on the upper part of the mounting bracket 336 via a short shaft and bearing, its bottom fixedly connected to the other end of the universal joint coupling 343. A second pulley 345 is also rotatably mounted on the mounting bracket 336 via a short shaft and bearing, maintaining a horizontal distance from the first pulley 344. A drive belt 346 (synchronous belt) is wrapped around the first pulley 344 and the second pulley 345. Two actuating brushes 347 are fixedly mounted on the top shafts of the first pulley 344 and the second pulley 345 via flanges or keys, respectively. Each actuating brush 347 consists of multiple rigid levers or flexible brush strips extending along its axis of rotation. When the lower conveyor roller 331 rotates under the drive of the fourth drive motor 337, it drives the second gear disk 341 to rotate synchronously. The second gear disk 341 drives the transmission gear 342 meshing with it to rotate, and the power is transmitted to the first pulley 344 through the universal joint coupling 343. The rotation of the first pulley 344 drives the second pulley 345 to rotate in the same direction through the transmission belt 346, thereby causing the two actuating brushes 347 mounted on top of it to rotate inward at the same speed (i.e., the actuating brushes 347 of the two auxiliary components 34 rotate relative to each other, pushing the garbage towards the center of the conveyor belt), effectively sweeping the garbage near the curb towards the entrance of the conveyor belt 332.

[0044] In one embodiment of this application, the collection box 4 is a rectangular or trapezoidal box with an open top, typically made of metal sheet. It is positioned by snap-fit, located at the lower rear of the inner cavity of the moving frame 1, and the center of its opening must be precisely aligned with the discharge end of the conveying assembly 33 (i.e., directly below the upper conveyor roller 331). All waste thrown from the top of the conveyor belt 332 will fall accurately into the collection box 4 under the influence of gravity and inertia for centralized storage and subsequent unified processing.

[0045] In one embodiment of this application, the control terminal 5 is an integrated electrical control system, which can be a control cabinet with a waterproof housing fixed on the mobile frame 1, or it can be in the form of a remote control. Its core is a PLC (Programmable Logic Controller) or a microcontroller, which integrates a power module, control circuit, relays, contactors, etc. The control terminal 5 is electrically connected to the pump 212 of the cleaning device 2, and the first drive motor 312, second drive motor 324, third drive motor 328, and fourth drive motor 337 of the cleaning device 3 via waterproof cables. The control panel is equipped with corresponding buttons, switches, or a touch screen, allowing operators to individually or in conjunction with preset programs control the start / stop, forward / reverse rotation (if required by the application), and speed adjustment (if the motor is a speed-regulating motor) of each motor, thereby coordinating the entire device's operation.

[0046] Work process and operating principle 1. Equipment Preparation and Positioning: Move the device to the section of road to be cleaned using a towing vehicle. The operator turns on the main power supply of the control terminal 5. First, operate the control terminal 5 to start the first drive motor 312 of the adjusting component 31. The first drive motor 312 drives the first threaded rod 313 to rotate, causing the mounting column 311 to descend, thereby lowering the brush 3214 of the cleaning component 32 connected to the mounting column 311 to the preset working height in contact with the road surface. At the same time, since the conveying component 33 is connected to the mounting column 311 through the second support rod 333, the height of its inlet end (lower conveyor roller 331) is also determined. At this time, the adjusting rods 334 on both sides of the conveying component 33 can be manually checked and finely adjusted, and locked with the fixing bolts 335 to ensure that the gap between the inlet of the conveyor belt 332 and the road surface is appropriate, and the belt tension is suitable, so as to effectively receive garbage.

[0047] 2. Start-up and Pre-cleaning: The pump 212 of the cleaning device 2 is started via the control terminal 5. The pump 212 draws water from the water tank 211, pressurizes it, and delivers it to the sprinkler pipe 214 through the water pipe 213. Finally, it sprays water in a fan-shaped mist forward and downward from a row of high-pressure water nozzles 215. This high-pressure water curtain pre-wets the road surface to be cleaned, washes away surface dust, and penetrates and softens stubborn dirt such as mud and oil, creating favorable conditions for subsequent mechanical sweeping and greatly reducing dust pollution during sweeping.

[0048] 3. Road Surface Sweeping and Pressure Adjustment: Upon or simultaneously with the start of water spraying, the second drive motor 324 of the cleaning device 3 is activated via control terminal 5. The second drive motor 324, through the transmission of the first gear 325, chain 327, and second gear 326, drives the rotating roller 323 to rotate at high speed. Four sets of brushes 3214, fixed to the rotating roller 323 and rotating accordingly, powerfully scrub the water-wetted road surface. The rotating brushes effectively remove softened dirt and throw all loose debris (including water-washed and brush-up debris) backward and to the sides. During operation, the operator can activate the third drive motor 328 at any time via control terminal 5, depending on the actual degree of dirt on the road surface (e.g., encountering particularly greasy or clumpy areas) or the wear condition of the brushes 3214. The third drive motor 328 drives the gear disc 329 to rotate, and through the synchronous meshing of the four third gears 3210, drives the four second threaded rods 3211 to rotate synchronously. The rotation of the second threaded rod 3211 is converted into the radial movement of the cleaning plate 3213 in the slot 3212 through the threaded pair, so that the four sets of brushes 3214 extend (increase pressure) or retract (reduce pressure or compensate for wear) synchronously, realizing real-time and precise adjustment of the brush bristle pressure on the ground and the effective cleaning width, ensuring that the best cleaning effect is always obtained.

[0049] 4. Waste Collection and Conveying: The waste thrown out by the cleaning component 32 mainly falls in the area behind it. At this time, the fourth drive motor 337 of the conveying component 33 is activated via the control terminal 5. The fourth drive motor 337 drives the upper conveyor roller 331 to rotate, driving the entire conveyor belt 332 to operate. The continuous movement of the conveyor belt 332 conveys the waste that falls in its entrance area upwards. At the same time, the auxiliary component 34 starts to work. Due to the rotation of the lower conveyor roller 331, the second gear disk 341 fixed on it is driven to rotate. The second gear disk 341 drives the transmission gear 342, and the power is transmitted to the first pulley 344 via the universal joint coupling 343, and then drives the second pulley 345 to rotate in the same direction via the transmission belt 346. This causes the agitator brush 347 mounted on top of the two pulleys to start rotating. Two symmetrically arranged brushes 347, like two rotating brooms, continuously sweep away debris from both sides of the cleaning assembly 32 that does not fall directly onto the conveyor belt 332, pushing it inward and forward until it gathers at the center of the conveyor belt 332's entrance, where it is captured and transported. This design significantly improves the waste collection rate and eliminates blind spots in cleaning.

[0050] 5. Waste Collection and Transfer: Waste captured by conveyor belt 332 is lifted to the rear of the device as the conveyor belt 332 moves upward at an incline. When the waste reaches the discharge end at the top of conveyor belt 332, it is thrown off the conveyor belt by centrifugal force and its own gravity, falling accurately into the collection box 4 directly below in a parabolic trajectory. The waste continuously accumulates in the collection box 4.

[0051] 6. Operation Completion and Maintenance: After cleaning a section of the road, each motor and pump can be stopped sequentially. The first drive motor 312 is reversed via control terminal 5, lifting the cleaning assembly 32 off the ground for easy equipment relocation. When the collection box 4 is full, the operator can open the two hinged doors on the top of the moving frame 1 to easily remove, empty, and return the collection box 4 from the top. During routine maintenance, worn brushes 3214 on the cleaning assembly 32 can be easily inspected and replaced, or the transmission components can be lubricated and maintained, all through the top doors.

[0052] Throughout the operation, the cleaning component 32, through the buffering effect of the damping spring 322, can adapt to the slight undulations of the road surface and maintain a stable ground pressure. All actions can be centrally controlled through the control terminal 5, realizing integrated, automated, and highly efficient road cleaning operations.

[0053] It should be noted that the control method in the embodiments of this application can be automatically controlled by a controller. The control method of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, this application is mainly used to protect mechanical structures, so the control method and circuit connection will not be explained in detail here.

[0054] The technical solution described in the above-described embodiments of this application integrates the cleaning device 2, the cleaning device 3, and the collection box 4 into the mobile frame 1, achieving continuous automated operation of cleaning, sweeping, and collection. Specifically, the pressure of the brush 3214 of the cleaning component 32 is adjustable, adapting to road surface wear and brush bristle abrasion; the agitator brush 347 of the auxiliary component 34 effectively collects debris from both sides, improving collection efficiency. The entire device has a coordinated structure, is easy to adjust, and significantly improves the efficiency and quality of highway cleaning operations.

[0055] Obviously, the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A highway cleaning device for highway engineering, characterized in that, It includes a mobile frame (1), a washing device (2), a cleaning device (3), and a collection box (4), wherein, The bottom of the mobile frame (1) is provided with wheels; The cleaning device (2) includes a cleaning assembly (21), wherein, The cleaning component (21) is fixedly installed at the front of the movable frame (1); The cleaning device (3) includes an adjustment component (31), a cleaning component (32), a conveying component (33), and two auxiliary components (34), wherein, The adjustment component (31) is vertically and vertically connected to the middle part of the movable frame (1); The cleaning component (32) is adjustablely connected within the movable frame (1) and is connected to the lifting part of the adjusting component (31); The conveying component (33) is adjustablely connected within the moving frame (1) and located behind the cleaning component (32), and is connected to the adjusting component (31). The two auxiliary components (34) are rotatably disposed on both sides of the inlet end of the conveying component (33); The collection box (4) is fixedly installed inside the movable frame (1) and located below the discharge end of the conveying assembly (33).

2. The highway cleaning device for highway engineering according to claim 1, characterized in that, The cleaning assembly (21) includes a water tank (211), a pump (212), a water supply pipe (213), a sprinkler pipe (214), and multiple spray nozzles (215), wherein, The water tank (211) is fixedly installed on the inner side wall of the movable frame (1); The pump (212) is fixedly installed on one side of the water tank (211); One end of the water supply pipe (213) is connected to the water tank (211) via the pump (212); The sprinkler pipe (214) is fixedly installed at the bottom of the front end of the movable frame (1), and its top is connected to the other end of the water supply pipe (213); Multiple spray nozzles (215) are evenly arranged on the sprinkler pipe (214).

3. A highway cleaning device for highway engineering according to claim 1, characterized in that, The adjustment assembly (31) includes a mounting post (311), a first drive motor (312), and a first threaded rod (313), wherein, The mounting column (311) is vertically arranged in the center of the movable frame (1), and the two ends of one side wall of the mounting column (311) are provided with sliding grooves (3111). The first drive motor (312) is fixedly mounted on the top of the movable frame (1); The first threaded rod (313) is connected to the output end of the first drive motor (312) and is threadedly connected to the mounting post (311).

4. A highway cleaning device for highway engineering according to claim 3, characterized in that, The cleaning assembly (32) includes two first support rods (321), two damping springs (322), a rotating roller (323), a second drive motor (324), a first gear (325), a second gear (326), a chain (327), a third drive motor (328), a gear disk (329), four third gears (3210), four second threaded rods (3211), four slots (3212), four cleaning plates (3213), and four sets of brushes (3214). The two first support rods (321) are respectively movably disposed in the two slide grooves (3111); One end of each of the two damping springs (322) is connected to one of the two first support rods (321), and the other end is connected to the inner wall of each of the two slide grooves (3111). The rotating roller (323) is rotatably disposed between the two first support rods (321), and the rotating roller (323) has a cavity inside; The second drive motor (324) is fixedly mounted on the side wall of one of the first support rods (321); The first gear (325) is fixedly connected to the output shaft of the second drive motor (324); The second gear (326) is rotatably mounted on a shaft at one end of the rotating roller (323); The chain (327) is meshed between the first gear (325) and the second gear (326); The third drive motor (328) is fixedly installed in the cavity inside the rotating roller (323); The gear disk (329) is rotatably disposed in the cavity inside the rotating roller (323) and is connected to the output end of the third drive motor (328); The four third gears (3210) are rotatably disposed in the cavities within the rotating roller (323) and all mesh with the gear disk (329); The four second threaded rods (3211) are rotatably arranged radially inside the rotating roller (323), and one end of each is connected to the four third gears (3210); The four slots (3212) are respectively equidistantly arranged on the roller surface of the rotating roller (323) along the axial direction; The four cleaning plates (3213) are slidably engaged in the four slots (3212), and one end of each plate is threadedly connected to the four second threaded rods (3211). The four sets of brushes (3214) are respectively fixedly installed on the outer walls of the four cleaning plates (3213).

5. A highway cleaning device for highway engineering according to claim 3, characterized in that, The conveying assembly (33) includes two conveying rollers (331), a conveyor belt (332), two second support rods (333), two adjusting rods (334), two fixing bolts (335), a mounting bracket (336), a fourth drive motor (337), a track slot (338), and a connecting rod (339), wherein, The two conveying rollers (331) are rotatably arranged laterally within the movable frame (1); The conveyor belt (332) is fitted onto the two conveyor rollers (331); One end of each of the two second support rods (333) is fixedly connected to one side of the mounting post (311); The two adjusting rods (334) are slidably sleeved on the two second support rods (333), and the two adjusting rods (334) are provided with a plurality of insertion holes spaced apart along the length direction. One of the conveying rollers (331) located below is rotatably disposed between the two adjusting rods (334). The two fixing bolts (335) are respectively threaded onto the two second support rods (333) for passing through the second support rods (333) and being inserted into the selected insertion holes of the adjusting rod (334) for fixing; The mounting bracket (336) is disposed on the outside of the lower one of the two conveying rollers (331), and the conveying roller (331) is rotatably disposed on the mounting bracket (336); The fourth drive motor (337) is fixedly connected to the end of another conveyor roller (331); The track slot (338) is provided on the inner wall of the movable frame (1); One end of the connecting rod (339) is slidably disposed in the track slot (338), and the other end is connected to the shaft end of the conveyor roller (331) near the fourth drive motor (337).

6. A highway cleaning device for highway engineering according to claim 5, characterized in that, Both auxiliary components (34) include a second gear disc (341), a transmission gear (342), a universal joint coupling (343), a first pulley (344), a second pulley (345), a transmission belt (346), and two actuating brushes (347), wherein, The second gear disk (341) is fixedly connected to one end of the conveyor roller (331) supported by the mounting frame (336); The transmission gear (342) is rotatably disposed within the mounting bracket (336) and meshes with the second gear disk (341); The universal joint coupling (343) is disposed in the mounting bracket (336), and one end of it is fixedly connected to the shaft of the transmission gear (342); The first pulley (344) is rotatably mounted on the mounting bracket (336), and its bottom is fixedly connected to the other end of the universal joint coupling (343); The second pulley (345) is rotatably mounted on the mounting bracket (336); The transmission belt (346) is sleeved on the first pulley (344) and the second pulley (345); The two actuating brushes (347) are respectively fixedly disposed on the top of the first pulley (344) and the second pulley (345).

7. A highway cleaning device for highway engineering according to claim 2, characterized in that, The plurality of water nozzles (215) are high-pressure nozzle groups, which are arranged along the width direction.

8. A highway cleaning device for highway engineering according to claim 4, characterized in that, The brush (3214) of the cleaning component (32) has a mixed structure of steel wire and nylon wire.

9. A highway cleaning device for highway engineering according to claim 5, characterized in that, The auxiliary component (34) has a toggle brush (347) consisting of multiple toggle elements extending along its rotation axis for sweeping waste onto the conveyor belt (332).

10. A highway cleaning device for highway engineering according to any one of claims 1 to 6, characterized in that, It also includes a control terminal (5), which is electrically connected to the pump (212) of the cleaning device (2), the first drive motor (312), the second drive motor (324), the third drive motor (328), and the fourth drive motor (337) of the cleaning device (3).

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