A cleaning apparatus for road maintenance

Abstract

This invention discloses a sweeping device for highway maintenance, relating to the field of highway maintenance technology. It includes: a sweeper truck, which has a collection compartment, a columnar brush holder, and an air intake. The front end of the sweeper truck has a connecting frame and a third electric push rod; an inner arc plate; a fixed frame; an arc-shaped frame slidably mounted on one side of the fixed frame, forming a liquid passage gap and a leakage hole between the arc-shaped frame and the fixed frame; a first electric push rod; a sweeping brush; a motor; and an adaptive adjustment component. This invention allows for flexible switching of sweeping modes based on the actual water accumulation and dampness of the highway, ensuring efficient solid waste collection while maximizing water separation outside the collection compartment. This prevents water from occupying the collection space, extending the distance of a single sweeping operation, and reducing the number of times the equipment needs to empty the collection compartment. This effectively improves the overall efficiency of highway maintenance sweeping operations and solves the problem of low operating efficiency of existing sweeping equipment under water conditions.

Description

Technical Field

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

[0002] After a long period of use, highways accumulate a large amount of solid waste such as fallen leaves, slag, and debris spilled by passing vehicles. This garbage not only affects the comfort of driving on the highway, but may also obscure traffic signs, block roadside drainage facilities, and easily cause water accumulation on the road surface during rainy days, affecting driving safety. Therefore, it is necessary to use sweeping equipment regularly to clean and maintain the highway.

[0003] Currently, road maintenance mostly uses sweeper trucks, driven by sanitation workers, to sweep the roads. These sweeping devices mainly rely on rotating roller brushes to sweep away garbage and collect it into a collection bin. However, there are still shortcomings in actual use. For example, after rain in summer, there will be water on the road surface, along with a large number of fallen leaves. If the sweeper truck directly sweeps, it is very easy to suck up the water and solid waste (such as fallen leaves) into the collection bin. A large amount of water entering the collection bin can easily cause water to fill the bin, reducing the sweeper truck's cleaning distance per trip, thus resulting in low efficiency of road maintenance. Summary of the Invention

[0004] The purpose of this invention is to provide a sweeping device for highway maintenance, so as to solve the problems mentioned in the background art.

[0005] This invention provides the following technical solution: a sweeping device for highway maintenance, comprising: a sweeper, which includes a storage compartment, a columnar brush holder, and an air inlet located above the columnar brush holder; a connecting frame and a third electric push rod located at the front end of the sweeper; an inner arc plate located below the air inlet and fixedly mounted on the sweeper, with the inner arc plate located at the rear end of the columnar brush holder; a fixed frame fixedly mounted below the inner arc plate, with an arc-shaped frame horizontally slidably mounted on the side of the fixed frame near the columnar brush holder, forming a liquid passage gap between the arc-shaped frame and the fixed frame; a drain hole located at the bottom of the arc-shaped frame for water flow; a first electric push rod fixedly mounted on one side of the fixed frame, with its movable end passing through the fixed frame and fixed to the arc-shaped frame; a sweeping brush located below both ends of the connecting frame; a motor located above both ends of the connecting frame, driving the sweeping brush to rotate; and an adaptive adjustment component located at both ends of the connecting frame for adjusting the position of the sweeping brush on the connecting frame.

[0006] As a further embodiment of the present invention, the side of the arc-shaped frame near the columnar brush frame is a pressing part, which is arranged in a vertical direction. When cleaning after rain, the pressing part presses the outer arc surface of the columnar brush frame.

[0007] As a further embodiment of the present invention, a fixing rod is fixedly installed on one side of the fixing frame, and a fixing plate is fixedly installed at the bottom of the fixing rod. The bottom of the fixing plate is provided with multiple water passage holes.

[0008] As a further embodiment of the present invention, a lifting frame is slidably installed on one side of the fixed frame, and a rubber strip is fixedly installed on the bottom of the lifting frame; a second electric push rod is fixedly installed on one side of the fixed frame, and the movable end of the second electric push rod passes through the fixed frame and is fixed to the lifting frame.

[0009] As a further embodiment of the present invention, the adaptive adjustment component includes: a slide, slidably disposed at both ends of the connecting frame, with the sweeping brush and motor mounted on the slide, and a guide groove extending through the slide; a guide frame, fixedly installed at both ends of the connecting frame, with the slide sliding within the guide frame and the guide frame passing through the guide groove; a fourth electric push rod, fixedly installed on one side of the connecting frame, with the movable end of the fourth electric push rod fixed to the slide; and a position recognition component, disposed on the side of the slide near the curb, for real-time detection of the distance between the sweeping brush and the curb.

[0010] As a further embodiment of the present invention, the position recognition component includes: a fixed box, fixedly installed on one side of the carriage, with two parallel rotating rods rotatably installed on one side of the fixed box, and a second mounting box rotatably installed on the other end of the two rotating rods, a distance sensor fixedly installed inside the second mounting box, the detection end of the distance sensor facing the curb, and the distance sensor and the fourth electric push rod working together through an adaptive adjustment system; an initial position positioning module, located on both sides of the sweeper, used to confirm the initial position of the sweeping brush and the curb; and a drive component, located in the fixed box and the initial position positioning module, used to drive the rotation of the rotating rods.

[0011] As a further embodiment of the present invention, the initial position positioning module includes: a protective box, which is fixedly installed on both sides of the sweeper, and a drive component is disposed inside the protective box; a mounting frame, which is rotatably installed on both sides of the sweeper and is driven to rotate by the drive component; and a first mounting box, which is fixedly installed on one end of the mounting frame, and a laser emitter is fixedly installed inside the first mounting box.

[0012] As a further embodiment of the present invention, the drive assembly includes: a motor, which is fixedly installed inside the protective box and the fixed box, and a worm gear is fixedly installed on the output shaft of the motor; a rotating shaft, which is fixedly installed on one end of the mounting bracket; a worm wheel, which is fixedly installed on one end of the rotating shaft and on one side of the rod, and the worm wheel and the worm gear cooperate with each other; and an encoder, which is disposed on the rotating shaft and the rotating rod and cooperates with the motor.

[0013] As a further embodiment of the present invention, an air pump is fixedly installed inside the sweeper; an air distribution pipe is provided at the front end of the columnar brush frame, the air distribution pipe is connected to the air pump, and the air distribution pipe is fixedly installed on the sweeper; multiple air outlet nozzles are fixedly installed on the side of the air distribution pipe near the columnar brush frame, and the multiple air outlet nozzles are arranged obliquely downward.

[0014] Compared with the prior art, the beneficial effects of the present invention are: With multiple modes to choose from, the corresponding sweeping mode can be flexibly switched according to the actual water accumulation and wet conditions of the road. While ensuring the collection efficiency of solid waste (such as fallen leaves), the water accumulation is separated outside the collection bin to the greatest extent, avoiding water accumulation occupying the collection space, extending the distance of a single sweeping operation, reducing the number of times the equipment has to go back and forth to empty the collection bin, effectively improving the overall efficiency of road maintenance and sweeping operations, and solving the problem of low operating efficiency of existing sweeping equipment under water conditions. Simultaneously, through the cooperation of two sets of distance sensors and the fourth electric push rod, an intelligent sensing system is formed, which can automatically adjust the lateral position of the sweeping brush according to the driving deviation of the sweeper, so that the sweeping brush is always close to the side of the curb for cleaning. This avoids the cleaning blind spots at the edge of the curb, ensures the integrity of the cleaning of solid waste on the roadside, and prevents the sweeping brush from pressing the curb for a long time, causing unnecessary wear. This effectively improves the stability of roadside cleaning and the service life of the equipment. By employing a dual detection and comparison method, the system can accurately adjust the position when the vehicle deviates during normal driving, and can also promptly identify sensor malfunctions, ensuring that the detection data throughout the adaptive adjustment process is accurate and reliable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the upper three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the lower three-dimensional structure of the present invention; Figure 3 This is an enlarged schematic diagram of the columnar brush holder structure of the present invention; Figure 4 For the present invention Figure 3 A partially enlarged structural diagram; Figure 5 For the present invention Figure 4 A partially enlarged structural diagram; Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the central fixed frame; Figure 7 For the present invention Figure 6 A schematic diagram of the overall exploded structure; Figure 8 This is an enlarged structural schematic diagram of the protective box of the present invention; Figure 9For the present invention Figure 8 A partial sectional view of the structure; Figure 10 This is an enlarged schematic diagram of the front end structure of the sweeper of the present invention; Figure 11 For the present invention Figure 10 A partially enlarged structural diagram; Figure 12 For the present invention Figure 11 A schematic diagram of the localized explosion structure; Figure 13 This is a schematic cross-sectional view of the fixing box structure of the present invention; Figure 14 This is a schematic diagram of the laser emitter structure of the present invention. Figure 15 This is a system flowchart of the adaptive adjustment system of the present invention.

[0016] In the diagram: 1. Sweeper; 2. Connecting frame; 3. Columnar brush holder; 4. Air pump; 5. Air inlet; 6. Leakage hole; 7. Air distribution pipe; 8. Air outlet nozzle; 9. Inner arc plate; 10. Fixing frame; 11. First electric push rod; 12. Arc-shaped frame; 13. Extrusion section; 14. Liquid passage gap; 15. Fixing plate; 16. Fixing rod; 17. Second electric push rod; 18. Lifting frame; 19. Rubber strip; 20. Water passage hole; 21. 21. Protective box; 22. Mounting bracket; 23. First mounting box; 24. Laser emitter; 25. Motor; 26. Worm gear; 27. Worm wheel; 28. Encoder; 29. ​​Rotary shaft; 30. Third electric push rod; 31. Carriage; 32. Cleaning brush; 33. Motor; 34. Fixing box; 35. Fourth electric push rod; 36. Guide frame; 37. Guide groove; 38. Rotary rod; 39. Second mounting box; 40. Distance sensor. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-15This invention provides a technical solution: a sweeping device for highway maintenance, which solves the problem that water entering the collection bin causes water to occupy the collection bin, reducing the sweeping distance of the sweeper per trip and resulting in low highway maintenance efficiency. The device includes a sweeper 1, which can be a conventional five-brush electric sweeper to meet the adaptability requirements of conventional highway sweeping operations. The front end of the sweeper 1 is rotatably equipped with a connecting frame 2 and a third electric push rod 30. The height of one end of the connecting frame 2 is adjusted by the extension and retraction of the third electric push rod 30, so that the sweeping brushes 32 set at both ends of the connecting frame 2 come into contact with the ground. The sweeping brushes 32 are driven to rotate by the motor 33, thereby sweeping the ground and allowing solid waste on both sides to enter the bottom of the sweeper 1. Meanwhile, the sweeper 1 is equipped with a collection bin, a columnar brush holder 3, and an air intake duct 5. The columnar brush holder 3 can sweep solid waste from the bottom of the sweeper 1 into the air intake duct 5, thereby allowing the air intake duct 5, located above the columnar brush holder 3, to suck the solid waste into the collection bin, completing the cleaning operation. The above are the existing structures of the sweeper 1, without any improvements. The specific structure and suction principle of the sweeper 1 can be obtained by those skilled in the art through technical manuals, and will not be elaborated here. This solution addresses the problem of water accumulation in existing cleaning equipment by making the following structural optimizations: An inner arc plate 9 is provided below the air intake duct 5. The inner arc plate 9 is fixedly installed on the sweeper 1 and is located at the rear end of the columnar brush frame 3. A fixing frame 10 is fixedly installed below the inner arc plate 9. A first electric push rod 11 is fixedly installed on one side of the fixing frame 10. An arc-shaped frame 12 is fixedly installed through the fixing frame 10. The arc-shaped frame 12 slides horizontally with the fixing frame 10. When the arc-shaped frame 12 is in contact with the fixing frame 10, a semi-arc baffle is formed. Combined with the front arc plate at the front end of the columnar brush frame 3, it forms a complete annular guide cavity. When solid waste enters the annular guide cavity with the airflow, the rotation of the columnar brush holder 3 will drive the solid waste from the annular guide cavity into the front end of the air intake duct 5, and then be carried into the collection compartment by the airflow.

[0019] When the arc-shaped frame 12 is moved by the first electric push rod 11, so that the arc-shaped frame 12 is not in contact with the fixed frame 10, a liquid passage gap 14 will be formed between the arc-shaped frame 12 and the fixed frame 10. At the same time, a leakage hole 6 is opened at the bottom of the arc-shaped frame 12. The size of the leakage hole 6 is reasonably designed so that the accumulated water can flow out smoothly through the leakage hole 6 while preventing large solid waste from passing through the leakage hole 6, ensuring that solid waste can enter the air intake duct 5 normally. When there is standing water on the road surface, after entering the lower part of the annular guide cavity, most of the water will flow through the drain hole 6 and pass through the arc frame 12. Some of the water carried by the columnar brush frame 3 will be thrown towards the inner arc plate 9 under the action of centrifugal force, and fall down along the arc surface of the inner arc plate 9. Finally, it will flow out of the guide cavity through the liquid passage gap 14, so that most of the water will not enter the air intake duct 5 with the airflow. The water separated from the liquid passage gap 14 is directly discharged to the road surface, which avoids water entering the collection bin and occupying storage space. This allows the collection bin to hold more solid waste, extends the range of the equipment for a single operation, and improves the cleaning efficiency of road maintenance.

[0020] Furthermore, the side of the arc-shaped frame 12 closest to the columnar brush holder 3 is the squeezing part 13. The squeezing part 13 is arranged vertically. When cleaning after rain, the squeezing part 13 squeezes the outer arc surface of the columnar brush holder 3, causing the brush of the columnar brush holder 3 to bend. Thus, when the columnar brush holder 3 leaves the area of ​​the squeezing part 13, the brush of the columnar brush holder 3 returns to its original position. The elastic deformation of the brush shakes out the water adhering to the brush, further improving the water separation effect and preventing a large amount of water from adhering to the brush and being carried into the air intake duct 5 and the storage compartment, thus ensuring the stability of the separation structure.

[0021] Furthermore, an air pump 4 is fixedly installed inside the sweeper 1, and an air distribution pipe 7 is fixedly installed on the sweeper 1. The air distribution pipe 7 is located at the front end of the columnar brush frame 3. The air distribution pipe 7 is connected to the air pump 4. Multiple air outlet nozzles 8 are fixedly installed on the side of the air distribution pipe 7 near the columnar brush frame 3, and the multiple air outlet nozzles 8 are set obliquely downward. When cleaning wetlands or areas with standing water, turn on the air pump 4. The air distribution pipe 7 pressurizes the air from the air pump 4 and sprays it out through multiple downward-sloping air nozzles 8. The airflow can blow up solid waste that has fallen into the low-lying area at the front of the columnar brush holder 3 in advance, preventing solid waste from accumulating in the water and being missed by the columnar brush holder 3. At the same time, the airflow can also blow some of the water out of the drain hole 6 in advance, and can also blow off the solid waste that is attached to the brush, preventing solid waste from sticking to the brush and affecting the brush rotation, thus ensuring cleaning efficiency.

[0022] Furthermore, a fixing rod 16 is fixedly installed on one side of the fixing frame 10, and a fixing plate 15 is fixedly installed at the bottom of the fixing rod 16. Multiple water passage holes 20 are opened at the bottom of the fixing plate 15. A second electric push rod 17 is fixedly installed on one side of the fixing frame 10. The movable end of the second electric push rod 17 passes through the fixing frame 10 and a lifting frame 18 is fixedly installed thereon. The lifting frame 18 is slidably connected to the fixing frame 10. A rubber strip 19 is fixedly installed at the bottom of the lifting frame 18. When sweeping in the rain, the second electric push rod 17 retracts, driving the lifting frame 18 to move upward, thereby increasing the gap between the rubber strip 19 and the ground, allowing water to flow through the gap between the rubber strip 19 and the ground and through the water hole 20, ensuring that the water flows through the bottom of the sweeper 1. When sweeping on dry roads without standing water, the second electric push rod 17 extends, driving the lifting frame 18 to move downwards, so that the bottom of the rubber strip 19 is close to the ground, forming a bottom guard. This prevents solid waste from leaking directly from the bottom of the sweeper 1, ensuring that solid waste is properly blocked into the annular guide cavity for collection. This takes into account the sweeping needs of both dry and wet roads, further improving the adaptability of the equipment.

[0023] Based on the above, sweeper 1 has three operating modes: In Mode 1, the dry road cleaning mode, the arc frame 12 is in contact with the fixed frame 10, and the bottom of the rubber strip 19 is in close contact with the ground. The entire annular guide cavity is a closed structure, and solid waste (such as fallen leaves) cannot be separated from the bottom and sides. All of them are swept into the air intake duct 5 by the columnar brush frame 3 and finally enter the collection bin. This can maximize the collection efficiency of solid waste and avoid the leakage of solid waste.

[0024] Mode 2, wet road cleaning mode: In this mode, the first electric push rod 11 pushes the arc-shaped frame 12 to extend, forming a liquid passage gap 14. At the same time, the second electric push rod 17 extends, the rubber strip 19 remains in close contact with the ground, and the suction of the air intake 5 is increased. Under the action of the columnar brush frame 3, the wet solid waste is carried into the annular guide cavity. Some of the missed solid waste will be sucked up again by the strong suction at the liquid passage gap 14, forming a dual collection structure to ensure that the wet solid waste is stably carried into the collection bin by the airflow.

[0025] Mode 3, heavy water accumulation and rainy weather cleaning mode. In this mode, the arc frame 12 extends to form a liquid passage gap 14, while the second electric push rod 17 retracts and the rubber strip 19 is raised. Large flow of water can be quickly discharged directly from the gap between the rubber strip 19 and the ground and the water passage hole 20. This reduces the amount of water entering the collection compartment and prevents the water from being pushed by the sweeper 1 to form water waves that affect traffic. It adapts to the cleaning needs of different working conditions and effectively improves the efficiency of road maintenance and cleaning.

[0026] With multiple modes to choose from, the corresponding sweeping mode can be flexibly switched according to the actual water accumulation and dampness of the road. While ensuring the efficiency of solid waste collection, it can separate water outside the collection bin to the greatest extent, avoid water occupying the collection space, extend the distance of a single sweeping operation, and reduce the number of times the equipment needs to go back and forth to empty the collection bin. This effectively improves the overall efficiency of road maintenance and sweeping operations and solves the problem of low efficiency of existing sweeping equipment in solid waste treatment under water conditions.

[0027] To prevent the sweeper 1 from deviating too much during operation and failing to effectively clean solid waste along the curb, an adaptive adjustment component is installed. This component is located at both ends of the connecting frame 2 and can adjust the position of the sweeping brush 32 on the connecting frame 2, as detailed below: Guide frames 36 are fixedly installed at both ends of the connecting frame 2. A slide 31 is slidably installed inside the guide frame 36. A guide groove 37 is provided through the slide 31, and the guide frame 36 passes through the guide groove 37. The cleaning brush 32 and the motor 33 are both installed on the slide 31. Meanwhile, a fourth electric push rod 35 is fixedly installed on one side of the connecting frame 2. The movable end of the fourth electric push rod 35 is fixed to the slide 31. The slide 31 is driven to slide on the connecting frame 2 by the extension and retraction of the fourth electric push rod 35, thereby adjusting the lateral position of the sweeping brush 32. When the vehicle moves away from the edge of the curb, the fourth electric push rod 35 extends to drive the carriage 31 to move outward, causing the sweeping brush 32 to move towards the curb. This ensures that the sweeping brush 32 can still sweep the solid waste at the edge of the curb, avoiding blind spots in the edge area and ensuring the integrity of the cleanup of solid waste at the edge of the road, thus further improving the overall cleaning effect.

[0028] If the sweeping brush 32 gets too close to the curb, the curb will press against the sweeping brush 32 in the opposite direction. At this time, the fourth electric push rod 35 retracts, driving the slide 31 to move inward. This prevents the sweeping brush 32 from pressing against the curb for a long time, causing excessive wear on the brush bristles and extending the service life of the sweeping brush 32. It also avoids hard collisions that could damage the equipment parts. This ensures the cleaning effect on the edge of the curb and enables adaptive adjustment of the cleaning position, further improving the equipment's adaptability to cleaning the edges of different road conditions.

[0029] The triggering condition for the extension and retraction of the fourth electric push rod 35 can be controlled by the position recognition component, which is located on the side of the carriage 31 near the curb stone, as follows:

[0030] Two mounting boxes 34 are fixedly installed on one side of the carriage 31. Two parallel rotating rods 38 are rotatably installed on one side of each mounting box 34. A second mounting box 39 is rotatably installed on the other end of the two rotating rods 38. A distance sensor 40 (either an ultrasonic distance sensor or an infrared distance sensor can be selected according to the light conditions of the working environment) is fixedly installed in the second mounting box 39. The detection end of the distance sensor 40 faces the curb stone. The distance sensor 40 and the fourth electric push rod 35 are used in conjunction with an adaptive adjustment system. By simultaneously detecting the distance between the sweeping brush 32 and the curbstone using two distance sensors 40, the adaptive adjustment system automatically controls the fourth electric push rod 35 to extend and retract, quickly correcting the lateral position of the sweeping brush 32.

[0031] The use of two parallel rotating rods 38 in conjunction with a distance sensor 40 allows the distance sensor 40 to adapt to curb stones of different heights (lower ones). When the curb stone is not high, the distance sensor 40 can move downwards by rotating the rotating rods 38, always keeping the detection end facing the side wall of the curb stone. This prevents detection offset due to insufficient curb stone height, ensuring the accuracy of position recognition. Consequently, the adaptive adjustment component can always stably adjust the position of the sweeping brush 32, achieving accurate sweeping operations on curb stones of different sizes.

[0032] The adaptive adjustment system is as follows: Set the initial distance detected by distance sensor 40 to ; Set the distance sensor 40 to detect the distance in real time as follows: ; Set the vehicle offset to: (Confirmed by a yaw rate sensor installed on sweeper 1; the yaw rate sensor uses MEMS technology to achieve...) Confirmation can be made by those skilled in the art according to actual needs, such as periodic... Zeroing calibration (details omitted here). The distance that carriage 31 needs to be adjusted for:

[0033] like If the value is negative, the fourth electric actuator 35 will retract. If the value is positive, the fourth electric actuator 35 is extended, and the displacement of the fourth electric actuator 35 is... The absolute value of.

[0034] in, The data is detected at intervals (e.g., 200ms), and the results are recalculated after each detection. The value is used to correct the position of the carriage 31 in real time.

[0035] also, The fourth electric actuator 35 will only be triggered if the absolute value exceeds the threshold (e.g., 1cm). If the absolute value does not exceed the threshold, the current position of the slide 31 remains unchanged, avoiding frequent adjustments of the fourth electric push rod 35 that could cause mechanical damage. It also avoids small fluctuations affecting the stability of the sweeping operation. The position adjustment can be completed quickly through simple calculations, without the need for complex algorithms and operations. It has low requirements for the control system, which can reduce the overall modification cost of the equipment and facilitate the upgrade and adaptation of existing sweepers 1.

[0036] Specific (e.g.) Figure 15(System flowchart shown) When the sweeper 1 moves along the road, the distance sensor 40 continuously outputs the real-time detected distance. : like Greater than the initial distance , obtained A positive value indicates that the sweeper 1 is gradually moving away from the curb during its operation, and the fourth electric push rod 35 needs to be extended. The absolute length pushes the carriage 31 to move outward, allowing the sweeping brush 32 to return to the appropriate position from the curb. like Less than the initial distance , obtained A negative value indicates that the sweeper 1 is gradually approaching the curb during its movement, requiring the fourth electric push rod 35 to retract. The absolute length pulls the carriage 31 inward to prevent the sweeping brush 32 from excessively squeezing the curb stone, causing brush bristle wear, and also prevents the sweeping brush 32 from colliding with the curb stone and damaging equipment parts.

[0037] By combining two sets of distance sensors 40 with the fourth electric push rod 35, an intelligent sensing system is formed. This system can automatically adjust the lateral position of the sweeping brush 32 according to the sweeper's driving deviation, ensuring that the sweeping brush 32 is always close to the side of the curb for cleaning. This avoids blind spots at the edge of the curb, ensuring the integrity of cleaning solid waste on the roadside, and also prevents the sweeping brush from pressing against the curb for a long time, causing unnecessary wear. This effectively improves the stability of roadside cleaning and extends the service life of the equipment.

[0038] Meanwhile, the two sets of distance sensors 40 on one side can also compare and verify the values ​​detected by each other. When one of the distance sensors 40 has a data deviation or malfunction, the detection distance output by the two sensors will be adjusted accordingly. Significant differences may occur, and the values ​​detected by the rear distance sensor 40 and the front distance sensor 40 within a certain time range (determined by vehicle speed) are compared. If the data are different, the adaptive adjustment system can quickly identify the anomaly and issue a fault reminder, which facilitates timely maintenance by staff and avoids position adjustment errors caused by a single sensor failure, further improving the stability of position detection and adaptive adjustment.

[0039] Furthermore, to explain in detail the comparison process of the detection values ​​of the two sets of distance sensors 40, the relevant formulas are listed below: The real-time detection value of the distance sensor 40 at the front is set as follows: ; The distance sensor at the rear is set to detect the following values ​​within a 40-second range over a given time period: ; but:

[0040] like and The values ​​are different (it should be noted that...) and If a tolerance range for the difference needs to be set (with a tolerance range of ±2mm), it indicates that at least one distance sensor 40 has output incorrect detection data, or that the vehicle has deviated. In this case, the adaptive adjustment system triggers a fault warning, suspends the automatic adjustment of the adaptive adjustment component, and reminds the driver to promptly inspect the faulty sensor to avoid abnormal position adjustment due to sensor failure, thus ensuring that the entire adaptive adjustment process remains stable and reliable.

[0041] If the vehicle deviates within the specified time range, the data from the front and rear distance sensors 40 are compared as follows: The distance between the two sets of distance sensors 40 is set as follows: ; but: - | * like - | and * If they are different, it means that at least one sensor has a detection deviation, which will also trigger a fault warning and remind staff to check and repair it.

[0042] After the vehicle deviates from its course, the time range is adaptively adjusted, and the adjustment time is: cos in, For the time range.

[0043] By using a dual detection and comparison method, the position adjustment can be accurately completed when the vehicle deviates during normal driving, and sensor malfunctions can be identified in a timely manner. This ensures that the detection data of the entire adaptive adjustment process is accurate and reliable, further improving the stability of the adaptive adjustment component and reducing the impact of sensor malfunctions on the overall cleaning operation.

[0044] All the above formulas are calculated in the built-in control system of the sweeper truck 1 without the need for manual intervention. The entire recognition and adjustment process is completed automatically, without increasing the driver's workload. The position adjustment is completed without affecting the normal sweeping operation progress, ensuring the roadside sweeping effect, improving the intelligence level of equipment use, and reducing the intensity of manual operation.

[0045] It should be noted that the first electric push rod 11, the second electric push rod 17, the third electric push rod 30, and the fourth electric push rod 35 are all linear motion power actuators that convert electrical energy into mechanical energy. They can be connected to an external power supply and control switch, and drive the push rod to perform linear reciprocating motion by controlling the forward and reverse rotation of the motor. By cooperating with limit switches or Hall sensors, the safety protection and position control of the push rod's extension and retraction stroke can be realized. Those skilled in the art can set them according to actual needs.

[0046] Furthermore, to facilitate staff in confirming the initial position of the sweeping brush 32 on the vehicle, an initial position positioning module is installed on both sides of the sweeper 1, as follows: Mounting brackets 22 are rotatably mounted on both sides of the sweeper 1. A first mounting box 23 is fixedly mounted on one end of the mounting bracket 22. A laser emitter 24 (a green line laser can be selected, and the illumination of the line laser is as follows) is fixedly mounted inside the first mounting box 23. Figure 14 As shown, the laser emitter 24 projects a straight laser line onto the ground on the side of the curbstone. Before operation, the staff adjusts the position of the sweeper 1 so that the straight laser line is located at the intersection of the curbstone and the ground, thus completing the initial position positioning. Then, the initial distance b of the two distance sensors 40 is calibrated (zero point is set) to ensure that the initial b value is accurate, so that the subsequent position adjustment calculation is accurate. There is no need for the staff to repeatedly get off the vehicle to check the position of the sweeping brush 32, which reduces the difficulty of initial debugging and improves debugging efficiency.

[0047] When not sweeping, the rotation of the mounting bracket 22 will cause the first mounting box 23 to move closer to the sweeper 1, storing the laser emitter 24 on the side of the vehicle body, avoiding scratches and collisions that could damage the laser emitter 24 when the vehicle is parked or not in operation. At the same time, it can also reduce the external space occupied by the laser emitter 24 and improve the neatness of the equipment after storage.

[0048] To drive the rotating rod 38 to rotate with the mounting bracket 22, a drive assembly is provided, as follows: A motor 25 is fixedly installed inside the protective box 21 and the fixed box 34. A worm gear 26 is fixedly installed on the output shaft of the motor 25. A worm wheel 27 is fixedly installed on one end of the rotating shaft 29 fixedly installed on the mounting bracket 22. At the same time, a worm wheel 27 is also fixedly installed on one side of the rotating shaft 38, and the worm wheel 27 meshes with the worm gear 26. The motor 25 drives the worm wheel 27 to rotate via the worm 26, which in turn drives the mounting bracket 22 and the rotating rod 38 to complete the rotation. The control logic is simple, and the worm wheel meshing has a self-locking characteristic. After the rotation is in place, it will not deflect on its own and can stably maintain the angle after rotation. No additional locking components are needed, which simplifies the overall structure and ensures the stability of the rotation angle, ensuring that the accuracy of laser projection and distance detection always meets the requirements.

[0049] In addition, encoders 28 are installed on the rotating shaft 29 and the rotating rod 38. The encoders 28 can detect the angle of the mounting bracket 22 and the rotating rod 38 after rotation in real time and feed the angle signal back to the control system, so that the control system can accurately control the rotation angle and further improve the precision and accuracy of structural adjustment.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sweeping device for highway maintenance, characterized in that, include: The sweeper (1) is equipped with a storage compartment, a columnar brush holder (3), and an air intake (5). The air intake (5) is located above the columnar brush holder (3). The front end of the sweeper (1) is equipped with a connecting frame (2) and a third electric push rod (30). The inner arc plate (9) is located below the air intake (5) and is fixedly installed on the sweeper (1), and the inner arc plate (9) is located at the rear end of the columnar brush holder (3); The fixed frame (10) is fixedly installed below the inner arc plate (9). The fixed frame (10) has an arc-shaped frame (12) horizontally slidably installed on the side of the fixed frame (10) near the columnar brush holder (3). A liquid passage gap (14) is formed between the arc-shaped frame (12) and the fixed frame (10). A drain hole (6) is provided at the bottom of the arc-shaped frame (12) for water circulation; The first electric push rod (11) is fixedly installed on one side of the fixed frame (10), and the movable end of the first electric push rod (11) passes through the fixed frame (10) and is fixed to the arc frame (12); A cleaning brush (32) is located below both ends of the connecting frame (2); The motor (33) is located above both ends of the connecting frame (2), and the motor (33) drives the cleaning brush (32) to rotate; An adaptive adjustment component is provided at both ends of the connecting frame (2) to adjust the position of the cleaning brush (32) on the connecting frame (2).

2. The sweeping equipment for highway maintenance according to claim 1, characterized in that: The arc-shaped frame (12) has a squeezing part (13) on the side near the columnar brush frame (3). The squeezing part (13) is arranged in a vertical direction. When cleaning after rain, the squeezing part (13) squeezes the outer arc surface of the columnar brush frame (3).

3. The sweeping equipment for highway maintenance according to claim 1, characterized in that: A fixing rod (16) is fixedly installed on one side of the fixing frame (10), and a fixing plate (15) is fixedly installed at the bottom of the fixing rod (16). Multiple water passage holes (20) are opened at the bottom of the fixing plate (15).

4. A sweeping device for highway maintenance according to claim 3, characterized in that: A lifting frame (18) is slidably installed on one side of the fixed frame (10), and a rubber strip (19) is fixedly installed at the bottom of the lifting frame (18). A second electric push rod (17) is fixedly installed on one side of the fixed frame (10), and the movable end of the second electric push rod (17) passes through the fixed frame (10) and is fixed to the lifting frame (18).

5. A sweeping device for highway maintenance according to claim 1, characterized in that: The adaptive adjustment component includes: The slide (31) is slidably mounted on both ends of the connecting frame (2). The cleaning brush (32) and the motor (33) are mounted on the slide (31). A guide groove (37) is provided through the slide (31). The guide frame (36) is fixedly installed at both ends of the connecting frame (2), and the slide (31) slides in the guide frame (36), and the guide frame (36) passes through the guide groove (37). The fourth electric push rod (35) is fixedly installed on one side of the connecting frame (2), and the movable end of the fourth electric push rod (35) is fixed to the slide (31); A position recognition component is located on the side of the carriage (31) near the curbstone to detect the distance between the sweeping brush (32) and the curbstone in real time.

6. A sweeping device for highway maintenance according to claim 5, characterized in that: The location identification component includes: A fixed box (34) is fixedly installed on one side of the carriage (31). Two parallel rotating rods (38) are rotatably installed on one side of the fixed box (34). A second mounting box (39) is rotatably installed on the other end of the two rotating rods (38). A distance sensor (40) is fixedly installed inside the second mounting box (39). The detection end of the distance sensor (40) faces the curb. The distance sensor (40) and the fourth electric push rod (35) are used in conjunction with an adaptive adjustment system. An initial position positioning module is set on both sides of the sweeper (1) to confirm the initial position of the sweeping brush (32) and the curb stone; The drive assembly is located in the fixed box (34) and the initial position positioning module, and is used to drive the rotation of the rotating rod (38).

7. A sweeping device for highway maintenance according to claim 6, characterized in that: The initial position positioning module includes: The protective box (21) is fixedly installed on both sides of the sweeper (1), and the drive components are set inside the protective box (21); Mounting bracket (22) is rotatably mounted on both sides of the sweeper (1) and is driven to rotate by the drive assembly; The first mounting box (23) is fixedly mounted on one end of the mounting frame (22), and the laser emitter (24) is fixedly mounted inside the first mounting box (23).

8. A sweeping device for highway maintenance according to claim 7, characterized in that: The driving component includes: The motor (25) is fixedly installed inside the protective box (21) and the fixed box (34), and the output shaft of the motor (25) is fixedly installed with a worm gear (26). The rotating shaft (29) is fixedly installed at one end of the mounting bracket (22); The worm gear (27) is fixedly installed at one end of the rotating shaft (29) and fixedly installed on one side of the rotating rod (38), and the worm gear (27) and the worm (26) are used in conjunction. The encoder (28) is mounted on the rotating shaft (29) and the rotating rod (38) and is used in conjunction with the motor (25).

9. A sweeping device for highway maintenance according to claim 1, characterized in that: An air pump (4) is fixedly installed inside the sweeper (1); The front end of the columnar brush holder (3) is provided with an air distribution pipe (7), which is connected to the air pump (4). The air distribution pipe (7) is fixedly installed on the sweeper (1). Multiple air nozzles (8) are fixedly installed on the side of the air distribution pipe (7) near the columnar brush holder (3), and the multiple air nozzles (8) are set at an angle downward.

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