Highway environmental protection sweeper

Abstract

The present application relates to the field of highway solid waste treatment technology, and particularly relates to a highway environmental protection sweeper, which comprises a frame, a first ring brush head and two groups of second ring brush heads, the top of the first ring brush head and the two groups of second ring brush heads are both provided with a power motor, the bottom of the frame is provided with a suction machine, the suction machine is used for sucking dust and particles generated near the first ring brush head and the second ring brush heads, the bottom of the frame is provided with a cleaning assembly, and the cleaning assembly is used for driving the two groups of second ring brush heads to move along the bottom of the frame; through the arrangement of the cleaning assembly and the suction machine, the interval between the first ring brush head and one of the second ring brush heads can be expanded first, the interval is just in the suction port coverage area of the suction machine, the volume of the local negative pressure area is significantly increased in the interval expansion moment, the suction port airflow can be accelerated and sucked in instantaneously to compensate for the volume change, and the instant capturing effect of the brush wire thrown particles and heavy particles is improved.

Description

Technical Field

[0001] This invention relates to the field of highway solid waste treatment technology, specifically to a highway environmental protection sweeper. Background Technology

[0002] Highway cleaning and maintenance is a key operation to ensure driving safety and maintain the roadside ecological environment. Environmental sweepers rely on the coordinated operation of rotating ring brush groups and negative pressure suction systems to efficiently remove road dust, gravel, scattered debris and hardened pollutants, and achieve standardized management of solid waste on highways. When the sweeper is in continuous operation, the bottom ring brush group rotates and throws the road pollutants and guides them to the suction port. The suction system collects the pollutants into the vehicle's sealed bin, forming a highly efficient operation mode of sweeping and suction linkage and integrated continuous cleaning. In existing technologies, typical sweeper brush assemblies usually employ multiple annular brushes fixedly arranged along the width of the vehicle, with each brush rotating around a fixed axis and maintaining a constant preset gap between them. The suction port is fixed between two sets of brushes, using a constant negative pressure to suck up contaminants raised by the brush assembly. To improve sweeping efficiency, methods such as increasing suction power, increasing the number of brush discs, or increasing brush diameter are usually used to expand the sweeping width and coverage per unit time. However, while a larger gap between brushes facilitates the passage of large pieces of debris and their capture by the suction port, it also reduces the coverage density due to the overlap between the brush bristles and the sweeping line pressure. The shortcomings include incomplete removal of fine dust and particles embedded in road surface textures; if the gap is narrowed to increase the sweeping line pressure and brush bristle coverage density, the narrow brush gap restricts the radial throwing space of particles thrown out by the brush bristles. Heavy particles are prone to repeatedly bouncing and colliding between the brushes and escaping from the suction area. With a fixed brush assembly configuration, the brush gap can only maintain a single value. When the sweeper passes through a single operation, all areas of the road surface receive the same cleaning mode with the same gap configuration, which cannot achieve differentiated graded cleaning of first loosening the coarse sweep and then tightly cleaning the fine sweep. This directly restricts the overall cleaning efficiency of the sweeper on the highway. Summary of the Invention

[0003] The purpose of this invention is to provide an environmentally friendly highway sweeper to address the aforementioned shortcomings of the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a highway environmental protection sweeper, comprising a frame, a first ring brush head, and two sets of second ring brush heads. A power motor is installed on the top of the first ring brush head and the two sets of second ring brush heads. A suction machine is installed at the bottom of the frame, and the suction machine is used to suck up dust and particles generated near the first ring brush head and the second ring brush head. A sweeping assembly is provided at the bottom of the frame, and the sweeping assembly is used to move the two sets of second ring brush heads along the bottom of the frame while moving the first ring brush head along the bottom of the frame toward one of the sets of second ring brush heads. The cleaning assembly includes a support frame installed at the bottom of the vehicle frame and a short crossbeam and two long crossbeams slidably connected inside the support frame. The short crossbeam and the two long crossbeams are used to keep the first ring brush head and the two sets of second ring brush heads stable at the bottom of the support frame. The support frame is movably connected with two symmetrical limiting rods, and the two limiting rods are connected to the two sets of second ring brush heads and the first ring brush head in sequence. The support frame is equipped with a power assembly that drives the long crossbeam and the short crossbeam to move relative to each other. One set of the second ring brush heads has a pre-dismantling component inside, and the pre-dismantling component is used to strike the ground while rotating around the second ring brush head; The first ring brush head has an internal extension component, which is used to divide the outer area of ​​the first ring brush head into multiple active cleaning belts.

[0005] Preferably, the power assembly includes a drive gear and a driven gear movably connected inside the support frame, and the drive gear and the driven gear are meshed together. A first servo motor is fixedly connected to the bottom of the support frame, and the output end of the first servo motor is fixedly connected to the bottom of the drive gear. The top of the driving gear and the driven gear are equipped with a first shaft and a second shaft. A second rocker arm is movably connected between the first shaft and the short crossbeam, and a first rocker arm is movably connected between the second shaft and one of the long crossbeams.

[0006] Preferably, each of the long crossbeams is further fixed to a second side frame at its end, and the second side frame is used to keep the power motor at the top of each group of second ring brush heads stable at the end of the long crossbeam. The bottom end of the short crossbeam is fixedly connected to a first side frame, and the first side frame is used to keep the power motor at the top of the first ring brush head stable at the end of the short crossbeam. Both the second side frame and the first side frame are designed as L-shaped structures; One end of the second side frame is fixedly connected to the end of the limiting rod, and the first side frame is slidably sleeved on the outside of the limiting rod; The support frame has two symmetrical limiting rings fixedly connected inside, and the two limiting rings are used to move the two limiting rods along the internal guide of the support frame.

[0007] Preferably, the extension component includes a lever arm fixedly connected to the bottom of the first side frame and a concentric column fixedly connected to the bottom of the power motor. The bottom end of the lever arm extends into the interior of the first ring brush head and is fixedly connected to a centering ring. The bottom end of the concentric column extends into the interior of the first ring brush head and is fixedly connected to a slope ring frame, and the slope ring frame is designed as a plum blossom shape. The centering ring is equipped with several extension frames on its outside, and the outside of each extension frame is in contact with the brush wire bundle of the first ring brush head. Each of the aforementioned extension frames is provided with an elastic component between it and the slope ring frame, and the elastic component is used to cause the extension frame to reciprocate alternately along the outside of the centering ring.

[0008] Preferably, each of the elastic components includes a groove formed on the outside and top of the centering ring and communicating with its interior, and a floating frame installed on the outer periphery of the slope ring frame. A vertical rod is slidably connected inside the groove, and the top of the vertical rod extends to the outside of the groove and is fixedly connected to the bottom of the floating frame. The floating frame maintains point contact with the slope ring frame through the vertical rod. Two symmetrical return springs are fixedly connected to the side of the extension frame near the upright. Two symmetrical center-limiting ring cylinders are fixedly connected inside the slide groove, and the center-limiting ring cylinders are embedded inside the return springs.

[0009] Preferably, the pre-disruption assembly includes a stabilizing cylinder fixedly connected to the middle of the inside of the second ring brush head and a disruption frame installed at the bottom of the stabilizing cylinder, and the disruption frame rotates synchronously with the rotation of the second ring brush head; The interior of the stabilizing cylinder is equipped with a connecting rod assembly that drives the disturbance breaking frame to reciprocate up and down.

[0010] Preferably, the connecting rod assembly includes a plug-in column fixedly connected to the top of the disruptor and a crank disc movably connected inside the stabilizing cylinder. A float is installed at one end of the crank disc, and a connecting rod frame is movably sleeved on the outside of the float, with a floating gap between the connecting rod frame and the float. The top of the insertion post extends into the interior of the stabilizing cylinder and has a concentric groove. A connecting shaft is installed inside the concentric groove. The bottom of the connecting rod frame extends into the interior of the concentric groove and is movably sleeved on the outside of the connecting shaft.

[0011] Preferably, a second servo motor is fixedly connected to the top of the stabilizer cylinder, and the output end of the second servo motor extends into the interior of the stabilizer cylinder and is fixedly connected to the crank disk. The crank disk rotates stably inside the stabilizer cylinder via the second servo motor.

[0012] The technical effects and advantages provided by the present invention in the above technical solution are as follows: 1. Through the arrangement of the cleaning components and the suction machine, the distance between the first ring brush head and one of the second ring brush heads can be expanded first. This gap is exactly within the suction port coverage area of ​​the suction machine. At the moment the gap expands, the corresponding local negative pressure zone volume increases significantly. The airflow at the suction port can be instantly accelerated to compensate for the volume change, which is beneficial to improving the immediate capture effect of heavy particles such as particles thrown out by the brush bristles, gravel, small stones, cement fragments, large pieces of sand, coal slag, and metal shavings. Subsequently, the distance between the other set of second ring brush heads and the first ring brush head moving to the left gradually decreases, and the working overlap area of ​​the brush bristles increases accordingly. The local cleaning line pressure and cleaning density are improved, which can form a reinforced cleaning strip that lags behind the gap expansion line of the front area, which helps to improve the environmental cleaning efficiency of highway pavement. 2. This invention, through the arrangement of the vehicle frame, the first ring brush head, and the second ring brush head, allows the displacement of the first ring brush head and the two sets of second ring brush heads to be superimposed on the longitudinal feed motion of the vehicle frame during continuous vehicle movement. This transforms the sweeping trajectory of the brush bristles on the ground from a conventional arc to a sawtooth or sinusoidal interlaced trajectory. The cross-line density of the sweeping traces can increase with the increase of the push rod movement frequency, thereby increasing the number of times the brush bristles repeatedly sweep the ground per unit area. At the same time, the cross-line can effectively remove dust embedded in the transverse texture of the road surface, reduce the concentrated sweeping traces formed in the gap area, and cover the uncleaned areas exposed in the gap expansion area, which helps to further improve the environmentally friendly sweeping effect of highway pavement. 3. The present invention, through the arrangement of the disruptor frame, the second servo motor, the second ring brush head and the first ring brush head, drives the disruptor frame to reciprocate to collide with the road surface, which pre-disturbs the road surface attachments, reduces the workload of the wave crest bristles of the first ring brush head, helps to reduce the wear rate of the wave crest bristles, and thus improves the overall cleaning quality of the road surface. 4. This invention, through the arrangement of the connecting rod frame, plug-in column, crank disc, and float, enables the connecting rod frame to possess asymmetrical motion characteristics. When the connecting rod frame approaches the bottom dead center, the end of the disruptor frame approaches the road surface, and the connecting rod frame and crank disc are in a small transmission angle state that is nearly collinear. The force amplification ratio of the mechanism is significantly improved, which can convert the continuous torque of the second ring brush head rotation into a strong axial impact force near the dead center. This force is then applied to the road surface attachments through the end of the disruptor frame. After passing the dead center, the force ratio of the mechanism decreases rapidly, and the connecting rod frame is rapidly lifted under the traction of the crank disc, creating differentiated accelerations in the push and return phases. The collision between the disruptor frame and the road surface is applied intermittently and discontinuously, which can achieve the force amplification effect of light input and heavy impact, causing stubborn attachments such as dried mud, gravel and sand intergrowth, and asphalt splashes to break and peel off under the action of instantaneous high contact stress. 5. This invention, through the arrangement of a slope ring frame, an extension frame, a centering ring, and a first ring brush head, allows the circumferential rotation of the slope ring frame to drive the extension frame to periodically radially expand the outer brush bundle of the first ring brush head. This transforms the contact shape of the brush bristle end face on the ground from a planar circular ring to an undulating surface with radial crests. In the crest area, the brush bristles protrude locally, resulting in a corresponding increase in contact pressure and bending deformation. In the trough area, the brush bristles retract relatively, reducing the contact pressure. When the first ring brush head rotates, the crests and troughs alternately sweep across the same ground position, forming a stepped differential scraping force. This transforms the uniform brush surface into a radial differential brush surface. The crest brush bristles can perform deep peeling operations, while the trough brush bristles can perform surface sweeping operations. A single brush rotation can complete a stepped cleaning from deep to shallow, achieving a continuous treatment effect of first peeling and then sweeping for the hardened mud adhering to the road surface. 6. This invention, through the arrangement of an extension frame, a first ring brush head, and a second ring brush head, allows the first ring brush head to be in an extended state along with the extension frame. The brush filaments on the side near the second ring brush head form a convex crest area. These convex brush filaments and the outer edge brush filaments of the second ring brush head can enter each other's rotating envelope circles, forming a temporary interlacing state. When the two brushes rotate in the same or opposite directions, the brush filaments in the interlacing area can interweave and comb each other. The brush filaments of the first ring brush head can comb and scrape the brush filaments in the convex area of ​​the second ring brush head, achieving mutual cleaning between the two brushes in motion without additional devices. The second ring brush head can serve as a self-cleaning structure for the first ring brush head, removing fibrous entanglements and wet mud clumps trapped in the deep scraping process of the convex crest area of ​​the first ring brush head, maintaining the cleanliness and elasticity of the trapezoidal extended state brush filaments of the first ring brush head, and helping to ensure the continuity of the vehicle frame's highway road cleaning operations. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the first ring brush head and the second ring brush head of the present invention being interleaved; Figure 3 This is a schematic diagram of the structure of the first rocker arm of the present invention; Figure 4 This is a schematic diagram of the structure of the expansion frame of the present invention; Figure 5 This is a schematic diagram of the slope ring frame of the present invention; Figure 6 This is a schematic diagram of the slide groove of the present invention; Figure 7This is a schematic diagram of the first motion state of the linkage frame of the present invention; Figure 8 This is a schematic diagram of the second motion state of the linkage frame of the present invention.

[0015] Explanation of reference numerals in the attached figures: 1. Frame; 11. First ring brush head; 12. Second ring brush head; 13. Suction machine; 14. Power motor; 2. Cleaning assembly; 21. Support frame; 22. Long crossbeam; 23. Short crossbeam; 24. Drive gear; 25. Driven gear; 26. First shaft column; 27. Second shaft column; 28. First swing arm; 29. ​​Second swing arm; 201. Limiting rod; 202. First servo motor; 203. First side frame; 204. Limiting ring; 205. Second side frame; 3. Extension components; 31. Lever arm frame; 32. Centering ring; 33. Extension frame; 34. Slope ring frame; 35. Concentric column; 36. Slide groove; 37. Return spring; 38. Upright pole; 39. Floating frame; 301. Centering ring cylinder frame; 4. Pre-disruption assembly; 41. Stabilizing cylinder; 42. Insertion and extraction column; 43. Disruption frame; 44. Second servo motor; 45. Crankshaft; 46. Float; 47. Connecting rod frame; 48. Concentric groove; 49. Connecting shaft column. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0017] This invention provides, for example Figure 1 , Figure 2 and Figure 3 The highway environmental protection sweeper shown includes a frame 1, a first ring brush head 11 and two sets of second ring brush heads 12. The top of the first ring brush head 11 and the two sets of second ring brush heads 12 are all equipped with a power motor 14. A suction machine 13 is installed at the bottom of the frame 1. The suction machine 13 is used to suck up the dust and particles generated near the first ring brush head 11 and the second ring brush head 12. A sweeping component 2 is provided at the bottom of the frame 1. The sweeping component 2 is used to move the two sets of second ring brush heads 12 along the bottom of the frame 1 while moving the first ring brush head 11 along the bottom of the frame 1 toward one of the sets of second ring brush heads 12. The cleaning assembly 2 includes a support frame 21 installed at the bottom of the frame 1 and a short crossbeam 23 and two long crossbeams 22 slidably connected inside the support frame 21. The short crossbeam 23 and the two long crossbeams 22 are used to keep the first ring brush head 11 and the two sets of second ring brush heads 12 stable at the bottom of the support frame 21. Two symmetrical limiting rods 201 are movably connected inside the support frame 21, and the two limiting rods 201 are connected to the two sets of second ring brush heads 12 and the first ring brush head 11 in sequence. The support frame 21 is equipped with a power assembly that drives the long crossbeam 22 and the short crossbeam 23 to move relative to each other. The power assembly includes a drive gear 24 and a driven gear 25 that are movably connected inside the support frame 21. The drive gear 24 and the driven gear 25 are meshed together. A first servo motor 202 is fixedly connected to the bottom of the support frame 21, and the output end of the first servo motor 202 is fixedly connected to the bottom of the drive gear 24. A first shaft 26 and a second shaft 27 are mounted on the top of the driving gear 24 and the driven gear 25. A second rocker arm 29 is movably connected between the first shaft 26 and the short crossbeam 23. A first rocker arm 28 is movably connected between the second shaft 27 and one of the long crossbeams 22. A second side frame 205 is also fixed to the end of each long crossbeam 22. The second side frame 205 is used to keep the power motor 14 on the top of each set of second ring brush heads 12 stable at the end of the long crossbeam 22. A first side frame 203 is fixedly connected to the bottom end of the short crossbeam 23. The first side frame 203 is used to keep the power motor 14 on the top of the first ring brush head 11 stable at the end of the short crossbeam 23. Both the second side frame 205 and the first side frame 203 are designed with an L-shaped structure; One end of the second side frame 205 is fixedly connected to the end of the limiting rod 201, and the first side frame 203 is slidably sleeved on the outside of the limiting rod 201; The support frame 21 has two symmetrical limiting rings 204 fixedly connected inside, and the two limiting rings 204 are used to make the two limiting rods 201 move along the internal guide of the support frame 21. Each group of second ring brush heads 12 consists of two second ring brush heads 12, and the two groups of second ring brush heads 12 contain a total of four second ring brush heads 12; the first ring brush head 11 consists of two first ring brush heads 11 as a group; the number of power motors 14 is six; two second ring brush heads 12 are evenly distributed at both ends of each long crossbeam 22; two first ring brush heads 11 are evenly distributed at both ends of each short crossbeam 23; each long crossbeam 22 and its corresponding two second ring brush heads 12, and each short crossbeam 23 and its corresponding two first ring brush heads 11 are matched; the number of second side frames 205 and first side frames 203 is adapted to the number of first ring brush heads 11 and second ring brush heads 12; The specific structures of the suction machine 13, the power motor 14, and the vehicle frame 1 are all existing conventional technologies, so they will not be described in detail in this application. In the current highway environmental cleaning operation, the mainstream operation process is as follows: First, the vehicle frame 1 adopts a new energy power configuration, gradually upgrading from traditional diesel drive to electric or hybrid drive, which can reduce exhaust emissions and operating noise from the source and help achieve zero-emission or near-zero-emission operation; Second, the operation process achieves dust-free control. The power motor 14 drives the first ring brush head 11 and the second ring brush head 12 to rotate and carry out cleaning operations on the road surface and surrounding areas. At the same time, the suction machine 13 generates negative pressure suction to suck the garbage and dust generated during cleaning into the sealed garbage bin. The entire process adopts a waterless and non-exposed sweeping brush operation mode, which can effectively reduce dust during the operation.

[0018] refer to Figure 2 , Figure 7 and Figure 8 As shown, a pre-dismantling component 4 is provided inside one of the second ring brush heads 12. The pre-dismantling component 4 is used to strike the ground while rotating around the second ring brush head 12. The pre-dismantling component 4 includes a stabilizing cylinder 41 fixedly connected to the middle of the inside of the second ring brush head 12 and a dismantling frame 43 installed at the bottom of the stabilizing cylinder 41. The dismantling frame 43 rotates synchronously with the rotation of the second ring brush head 12. The interior of the stabilizing cylinder 41 is equipped with a connecting rod assembly that drives the disturbance breaking frame 43 to reciprocate up and down. The linkage assembly includes a plug-in column 42 fixedly connected to the top of the disruptor 43 and a crank plate 45 movably connected inside the stabilizer cylinder 41. A float 46 is installed at one end of the crank plate 45, and a linkage frame 47 is movably sleeved on the outside of the float 46, with a floating gap between the linkage frame 47 and the float 46. The top of the plug-in post 42 extends into the interior of the stabilizing cylinder 41 and has a concentric groove 48. A connecting shaft post 49 is installed inside the concentric groove 48. The bottom of the connecting rod bracket 47 extends into the interior of the concentric groove 48 and is movably sleeved on the outside of the connecting shaft post 49. A second servo motor 44 is fixedly connected to the top of the stabilizer cylinder 41, and the output end of the second servo motor 44 extends into the interior of the stabilizer cylinder 41 and is fixedly connected to the crank disk 45. The crank disk 45 rotates stably inside the stabilizer cylinder 41 through the second servo motor 44.

[0019] refer to Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the first ring brush head 11 has an extension component 3 inside, and the extension component 3 is used to divide the outer area of ​​the first ring brush head 11 into multiple active cleaning belts; The extension component 3 includes a lever arm 31 fixedly connected to the bottom of the first side frame 203 and a concentric column 35 fixedly connected to the bottom of the power motor 14. The bottom end of the lever arm 31 extends into the interior of the first ring brush head 11 and is fixedly connected to a centering ring 32. The bottom end of the concentric column 35 extends into the interior of the first ring brush head 11 and is fixedly connected to a slope ring frame 34, and the slope ring frame 34 is designed as a plum blossom shape. Several extension brackets 33 are mounted on the outside of the centering ring 32, and the outside of each extension bracket 33 is in contact with the brush wire bundle of the first ring brush head 11. Each extension frame 33 is provided with an elastic component between itself and the slope ring frame 34, and the elastic component is used to make the extension frame 33 reciprocate alternately along the outside of the centering ring 32. Each elastic component includes a groove 36 formed on the outside and top of the centering ring 32 and communicating with its interior, and a floating frame 39 installed on the outer periphery of the slope ring frame 34. A vertical rod 38 is slidably connected inside the groove 36, and the top of the vertical rod 38 extends to the outside of the groove 36 and is fixedly connected to the bottom of the floating frame 39. The floating frame 39 maintains point contact with the slope ring frame 34 through the vertical rod 38. Two symmetrical return springs 37 are fixedly connected to the side of the extension frame 33 near the upright 38. Two symmetrical limiting ring cylinder frames 301 are fixedly connected inside the slide groove 36, and the limiting ring cylinder frames 301 are embedded inside the return springs 37. The number of extension frames 33 is three, and the three extension frames 33 are evenly distributed around the outer periphery of the centering ring 32. The number of elastic components is consistent with the number of extension frames 33.

[0020] Working principle: When using: refer to Figure 2 , Figure 7 and Figure 8As shown, when cleaning mud and particles from the road surface is required, the vehicle frame 1 moves along the road surface to be cleaned. The power motor 14 drives each set of second ring brush heads 12 and first ring brush heads 11 to rotate autonomously around the bottom of the support frame 21, realizing continuous cleaning of the road surface. During the rotation of the second ring brush head 12, it drives the stabilizing cylinder 41 to rotate synchronously. The rotation of the stabilizing cylinder 41 drives the disrupting frame 43 to slide and scrape along the road surface. At the same time, the second servo motor 44 starts to drive the crank disc 45 along the stabilizing cylinder 21. The cylinder 41 rotates internally, and the float 46 moves in a circular motion along the inside of the stabilizing cylinder 41 with the crank disc 45. When the float 46 rotates, its outer wall forms an abutment with the inner wall of the connecting rod frame 47, synchronously pushing and pulling the connecting rod frame 47 to swing in a reciprocating arc around the outer circumference of the crank disc 45, completing a compound motion of upward lifting and downward pressing. During the movement of the connecting rod frame 47, it drives the connecting shaft column 49 and the insertion and extraction column 42 to move in a reciprocating linear motion. When the insertion and extraction column 42 moves upward along the inside of the stabilizing cylinder 41, the disruptor frame 43 is raised, increasing the distance between the connecting rod and the connecting rod frame 47. The spacing between the road surface and the load cell; when the insert column 42 moves downward along the inside of the stabilizing cylinder 41, the disruptor frame 43 collides and impacts with the road surface. The insert column 42 continues to move up and down reciprocally along the inside of the stabilizing cylinder 41, driving the disruptor frame 43 to reciprocate and impact the road surface. At the same time, the connecting rod frame 47 adopts an asymmetrical motion design. When the connecting rod frame 47 moves to a position close to the bottom dead center, the end of the disruptor frame 43 is about to contact the road surface. The connecting rod frame 47 and the crank disc 45 are in a small transmission angle state that is close to collinear, and the force amplification ratio of the mechanism is sharply increased. The continuous torque of the second ring brush head 12 rotation is instantly converted into a high-intensity axial impact force near the dead point, which is applied to the road surface attachments through the end of the disturbance frame 43. After passing the dead point, the force ratio of the mechanism decreases rapidly, and the connecting rod frame 47 is quickly lifted under the traction of the crank disc 45, so that the collision between the disturbance frame 43 and the road surface is applied intermittently and discontinuously, realizing the force amplification effect of light input and heavy impact, so that stubborn attachments such as dried mud blocks are broken and peeled off under the action of instantaneous high contact stress, completing the pre-disturbance treatment of the road surface attachments. refer to Figure 2 and Figure 3As shown, secondly, when it is necessary to reciprocate the distance between the two sets of second ring brush heads 12 and first ring brush heads 11, the first servo motor 202 starts to drive, driving the active gear 24 to rotate synchronously inside the support frame 21. The active gear 24 meshes with the driven gear 25, and the rotation of the active gear 24 drives the first shaft column 26 at its top to rotate synchronously. During the rotation of the first shaft column 26, its outer wall forms an abutment with the inner wall of the second rocker arm 29. The second rocker arm 29 swings around the short crossbeam 23 as the center, pushing the short crossbeam 23 to move to the left inside the support frame 21. During the movement of the short crossbeam 23, it drives the first side frame 203 to slide along the guide outside the limit rod 201 to ensure the stability of the movement of the short crossbeam 23. Similarly, the driven gear 25 rotates to drive the second shaft column 202 to rotate synchronously. The column 27 rotates synchronously, and the outer wall of the second shaft column 27 forms abutment with the inner wall of the first rocker arm 28. The first rocker arm 28 swings around one of the long crossbeams 22 as the center, pushing the long crossbeam 22 to move to the right along the inside of the support frame 21. During the movement of the long crossbeam 22, the second side frame 205 and the limiting rod 201 slide along the inside of the limiting long ring 204, driving the first ring brush head 11 and one of the second ring brush heads 12 to move along the bottom of the support frame 21, so that the distance between the first ring brush head 11 and the second ring brush head 12 expands first. This expanded gap is exactly in the area covered by the suction port of the suction machine 13. The instantaneous expansion of the gap causes the volume of the local negative pressure area to increase sharply. The airflow from the suction port accelerates to compensate for the volume change, improving the instant capture efficiency of particles thrown out by the brush and heavy particles. refer to Figure 1 , Figure 2 and Figure 3 As shown, when one of the long crossbeams 22 moves to the right, it drives the limiting rod 201 to move synchronously. The limiting rod 201 pulls another set of second ring brush heads 12 to move synchronously to the right. At this time, the distance between the second ring brush head 12 and the first ring brush head 11 moving to the left continues to decrease, and the working overlap area of ​​the brush bristles increases instantaneously. The local sweeping line pressure and sweeping density increase synchronously. During the continuous movement of the frame 1, the displacement of the first ring brush head 11 and the two sets of second ring brush heads 12 is superimposed on the longitudinal feed motion of the frame, so that the sweeping trajectory of the brush bristles on the road surface changes from a single arc. The line transforms into a sawtooth or sinusoidal interlaced trajectory. The cross density of the sweeping traces increases with the frequency of push rod movement. The number of times the brush filaments repeatedly sweep within a unit area of ​​the road surface doubles. The cross traces can effectively remove dust embedded in the transverse textures such as the roughening grooves of the cement road surface. The concentrated sweeping traces formed by narrowing the gap area cover the uncleaned areas exposed by the gap expansion area, forming a reinforced cleaning strip that lags behind the gap expansion line of the front area. Under the continuous drive of the first servo motor 202, the distance between the two sets of second ring brush heads 12 and the first ring brush head 11 is reciprocated. refer to Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, as the first ring brush head 11 slowly approaches one of the second ring brush heads 12, the output of the power motor 14 rotates synchronously, driving the concentric column 35 to rotate. The rotation of the concentric column 35 drives the slope ring frame 34 to make a circular motion along the top of the centering ring 32. When the slope ring frame 34 rotates, the protruding part of its external concave-convex track contacts and abuts against one of the floating frames 39, pushing the floating frame 39 to move horizontally along the top of the centering ring 32. The upright 38 slides horizontally along the inside of the slide groove 36 with the floating frame 39. The movement of the upright 38 drives the extension frame 33 to slide outward along the inside of the slide groove 36. The protruding part of the extension frame 33 abuts against the external brush bundle of the first ring brush head 11, realizing the radial outward push of the brush bundle. At the same time, the movement of the extension frame 33 drives the return spring 37 to move synchronously. The return spring 37 is located between the centering ring cylinder frame 301 and the extension frame. The slope ring frame 34 is stretched between the two sides. Similarly, when the slope ring frame 34 rotates to the concave part of its outer side corresponding to the other floating frames 39, the return spring 37 elastically resets and applies a pulling force to the extension frame 33 to retract into the slide groove 36, so that the extension frame 33 and the outer brush bundle of the first ring brush head 11 are released from contact. When the extension frame 33 retracts along the inside of the slide groove 36, it simultaneously drives the upright 38 to slide along the inside of the slide groove 36, pulling the floating frame 39 to smoothly transition from the convex part to the concave part along the outside of the slope ring frame 34. The slope ring frame 34 continues to rotate in a circle, driving the extension frame 33 to periodically radially expand the outer brush bundle of the first ring brush head 11, so that the contact shape of the brush bristle end face on the road surface changes from a planar circle to an undulating surface with radial crests. The brush bristles in the crest area protrude locally, increasing the contact pressure and bending deformation. The brush bristles in the trough area retract relatively, reducing the contact pressure. refer to Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, when the first ring brush head 11 rotates, the crests and troughs alternately sweep across the same ground position, forming a stepped differential scraping force, transforming the uniform brush surface into a radial differential brush surface: the crest brush bristles perform deep stripping operations, and the trough brush bristles perform surface sweeping operations. A single brush rotation can complete a stepped cleaning from deep to shallow, achieving continuous treatment of hardened mud adhering to the road surface by first chiseling off and then sweeping. At the same time, the first ring brush head 11 is in an extended state with the extension frame 33, and the brush bristle bundle on the side near the second ring brush head 12 forms crest ridges. In the area, the raised bristles and the outer edge bristles of the second ring brush head 12 enter each other's rotating envelope circles, forming a temporary interlaced state; when the two brushes rotate in the same or opposite directions, the bristles in the interlaced area interweave and comb each other, and the second ring brush head 12, as the self-cleaning comb of the first ring brush head 11, performs combing and scraping on the bristles in the crest area of ​​the first ring brush head 11, removing the fiber entanglement and wet mud clumps trapped during the deep scraping process, maintaining the cleanliness and elasticity of the trapezoidal extended state bristles of the first ring brush head 11, and ensuring the continuity of the vehicle frame 1 for highway road cleaning operations.

[0021] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A highway environmental protection sweeper, comprising a frame (1), a first ring brush head (11) and two sets of second ring brush heads (12), wherein a power motor (14) is installed on the top of the first ring brush head (11) and the two sets of second ring brush heads (12), and a suction machine (13) is installed on the bottom of the frame (1), and the suction machine (13) is used to suck up dust and particles generated near the first ring brush head (11) and the second ring brush head (12), characterized in that: The bottom of the frame (1) is provided with a cleaning component (2), and the cleaning component (2) is used to drive the two sets of second ring brush heads (12) to move along the bottom of the frame (1) while moving the first ring brush head (11) along the bottom of the frame (1) towards one of the sets of second ring brush heads (12); The cleaning assembly (2) includes a support frame (21) installed at the bottom of the frame (1) and a short crossbeam (23) and two long crossbeams (22) slidably connected inside the support frame (21). The short crossbeam (23) and the two long crossbeams (22) are used to keep the first ring brush head (11) and the two sets of second ring brush heads (12) stable at the bottom of the support frame (21). The support frame (21) is movably connected with two symmetrical limiting rods (201), and the two limiting rods (201) are connected to the two sets of second ring brush heads (12) and the first ring brush head (11) in sequence. The support frame (21) is provided with a power assembly that drives the long crossbeams (22) and the short crossbeams (23) to move relative to each other. One of the second ring brush heads (12) has a pre-dismantling component (4) inside, and the pre-dismantling component (4) is used to strike the ground while rotating around the second ring brush head (12); The first ring brush head (11) has an extension component (3) inside, and the extension component (3) is used to divide the outer area of ​​the first ring brush head (11) into multiple active cleaning belts.

2. The highway environmental protection sweeper according to claim 1, characterized in that: The power assembly includes a drive gear (24) and a driven gear (25) movably connected inside the support frame (21), and the drive gear (24) and the driven gear (25) are meshed. A first servo motor (202) is fixedly connected to the bottom of the support frame (21), and the output end of the first servo motor (202) is fixedly connected to the bottom of the drive gear (24). The top of the driving gear (24) and the driven gear (25) are equipped with a first shaft (26) and a second shaft (27). A second rocker arm (29) is movably connected between the first shaft (26) and the short crossbeam (23). A first rocker arm (28) is movably connected between the second shaft (27) and one of the long crossbeams (22).

3. The highway environmental protection sweeper according to claim 2, characterized in that: Each of the long crossbeams (22) is also fixed to a second side frame (205) at its end, and the second side frame (205) is used to keep the power motor (14) at the top of each set of second ring brush heads (12) stable at the end of the long crossbeam (22). The bottom end of the short crossbeam (23) is fixedly connected to a first side frame (203), and the first side frame (203) is used to keep the power motor (14) at the top of the first ring brush head (11) stable at the end of the short crossbeam (23). Both the second side frame (205) and the first side frame (203) are designed as L-shaped structures; One end of the second side frame (205) is fixedly connected to the end of the limiting rod (201), and the first side frame (203) is slidably sleeved on the outside of the limiting rod (201); The support frame (21) is internally fixedly connected with two symmetrical limiting rings (204), and the two limiting rings (204) are used to make the two limiting rods (201) move along the internal guide of the support frame (21).

4. The highway environmental protection sweeper according to claim 3, characterized in that: The extension component (3) includes a lever arm (31) fixedly connected to the bottom of the first side frame (203) and a concentric column (35) fixedly connected to the bottom of the power motor (14). The bottom end of the lever arm (31) extends into the interior of the first ring brush head (11) and is fixedly connected to a centering ring (32). The bottom end of the concentric column (35) extends into the interior of the first ring brush head (11) and is fixedly connected to a slope ring frame (34). The slope ring frame (34) is designed as a plum blossom shape. The centering ring (32) is equipped with several extension frames (33), and the exterior of each extension frame (33) is in contact with the brush wire bundle of the first ring brush head (11). Each of the aforementioned extension frames (33) is provided with an elastic component between it and the slope ring frame (34), and the elastic component is used to make the extension frame (33) reciprocate alternately along the outside of the centering ring (32).

5. A highway environmental protection sweeper according to claim 4, characterized in that: Each of the elastic components includes a groove (36) formed on the outside and top of the centering ring (32) and communicating with its interior, and a floating frame (39) installed on the outer periphery of the slope ring frame (34). The inside of the groove (36) is slidably connected to a vertical rod (38), and the top of the vertical rod (38) extends to the outside of the groove (36) and is fixedly connected to the bottom of the floating frame (39). The floating frame (39) maintains point contact with the slope ring frame (34) through the vertical rod (38). The extension frame (33) is fixedly connected to two symmetrical return springs (37) on the side near the upright (38), and the slide groove (36) is fixedly connected to two symmetrical limiting ring cylinders (301), and the limiting ring cylinders (301) are embedded inside the return springs (37).

6. The highway environmental protection sweeper according to claim 1, characterized in that: The pre-disruption assembly (4) includes a stabilizing cylinder (41) fixedly connected to the middle of the second ring brush head (12) and a disruption frame (43) installed at the bottom of the stabilizing cylinder (41), and the disruption frame (43) rotates synchronously with the rotation of the second ring brush head (12). The interior of the stabilizing cylinder (41) is equipped with a connecting rod assembly that drives the disturbance frame (43) to move up and down reciprocally.

7. A highway environmental protection sweeper according to claim 6, characterized in that: The linkage assembly includes a plug-in column (42) fixedly connected to the top of the disruptor (43) and a crank disc (45) movably connected inside the stabilizer (41). A float (46) is installed at one end of the crank disc (45). A connecting rod frame (47) is movably sleeved on the outside of the float (46), and there is a floating gap between the connecting rod frame (47) and the float (46). The top end of the plug-in post (42) extends into the interior of the stabilizing cylinder (41) and has a concentric groove (48). A connecting shaft post (49) is installed inside the concentric groove (48). The bottom end of the connecting rod frame (47) extends into the interior of the concentric groove (48) and is movably sleeved on the outside of the connecting shaft post (49).

8. A highway environmental protection sweeper according to claim 7, characterized in that: The top of the stabilizer cylinder (41) is fixedly connected to a second servo motor (44), and the output end of the second servo motor (44) extends into the interior of the stabilizer cylinder (41) and is fixedly connected to the crank disk (45). The crank disk (45) rotates stably inside the stabilizer cylinder (41) through the second servo motor (44).

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