An all-terrain sweeper vehicle and method of use thereof

Abstract

This invention relates to the field of road cleaning equipment technology, and more specifically, to an all-terrain sweeper and its application method. The sweeper includes a main body, an adjustable side brush assembly, a liftable and rotatable suction cup assembly, and a liftable garbage bin. The adjustable side brush assembly, the liftable and rotatable suction cup assembly, and the liftable garbage bin are all mounted on the main body. The main body is equipped with a controller for controlling the adjustable side brush assembly, the liftable and rotatable suction cup assembly, and the liftable garbage bin, as well as a road surface sensor for sensing. The road surface sensor is electrically connected to the controller. When encountering an obstacle, the suction cup assembly rotates to one side of the vehicle body, and together with the liftable garbage bin, flips upwards, creating a central passage in the middle of the vehicle body for the obstacle to pass through. This forms an all-terrain sweeper that can pass through obstacle posts and enter sidewalks and non-motorized vehicle lanes for mechanized cleaning.

Description

Technical Field

[0001] This invention relates to the field of road cleaning equipment technology, and more specifically, to an all-terrain sweeper and its application method. Background Technology

[0002] Sweeping vehicles have been widely used in street cleaning and maintenance. They achieve mechanized road cleaning by sweeping up garbage with side brushes, sucking up garbage with suction cups, and removing dust with a filtration system, which greatly improves cleaning efficiency and reduces the intensity of manual labor.

[0003] Existing street cleaning areas typically include motor vehicle lanes, non-motor vehicle lanes, and sidewalks. For safety management purposes, non-motor vehicle lanes and sidewalks are equipped with bollards of varying heights (such as barriers and crash barriers) to prevent motor vehicles from entering. However, these bollards also obstruct the passage of existing street sweepers, preventing them from entering the sidewalks and non-motor vehicle lanes for cleaning operations.

[0004] Therefore, the cleaning of sidewalks and non-motorized vehicle lanes still mainly relies on manual sweeping, which suffers from problems such as high labor intensity, low efficiency, and dust affecting pedestrian health. The industry urgently needs an all-terrain sweeper that can smoothly pass over obstacle posts and enter sidewalks and non-motorized vehicle lanes for mechanized cleaning. Summary of the Invention

[0005] To address the technical problem of hindering the mechanized cleaning of pedestrian and non-motorized vehicle lanes from smoothly passing over bollards, this invention provides the following technical solution:

[0006] An all-terrain sweeper includes a sweeper body, an adjustable side brush assembly, a liftable and rotatable suction cup assembly, and a liftable garbage bin. The adjustable side brush assembly, the liftable and rotatable suction cup assembly, and the liftable garbage bin are all mounted on the sweeper body. The sweeper body is equipped with a controller for controlling the adjustable side brush assembly, the liftable and rotatable suction cup assembly, and the liftable garbage bin, as well as a road surface sensor for sensing. The road surface sensor is electrically connected to the controller. When encountering an obstacle, the suction cup assembly rotates to one side of the vehicle body, and together with the liftable garbage bin, flips upward to create a central passage in the middle of the vehicle body for the obstacle to pass through.

[0007] This invention utilizes a sweeper body equipped with a controller for controlling an adjustable side brush assembly, a height-adjustable and rotatable suction cup assembly, and a height-adjustable dustbin, as well as a road surface sensor for sensing. The road surface sensor is electrically connected to the controller. When encountering an obstacle, the suction cup assembly rotates to one side of the vehicle, and together with the height-adjustable dustbin, flips upwards, creating a central passage in the middle of the vehicle for the obstacle to pass through. Upon encountering an obstacle, the road surface sensor detects it and transmits a signal to the controller. The controller then controls the side brush assembly, the height-adjustable and rotatable suction cup assembly, and the height-adjustable dustbin to perform corresponding actions, thereby enabling obstacle avoidance. When encountering a central obstacle, the side brush assembly can move up and down. When the suction cup assembly rotates to one side of the vehicle, together with the height-adjustable dustbin, flips upwards, creating a central passage in the middle of the vehicle for the obstacle to pass through, allowing the sweeper to smoothly pass over the pedestrian obstacle, and then return to its original position to continue sweeping. In other words, depending on the terrain, the side brush component, the liftable and rotating suction cup component, and the liftable trash can can perform corresponding actions, forming an all-terrain sweeper that can pass through obstacle posts, enter sidewalks and non-motorized vehicle lanes for mechanized cleaning.

[0008] Preferably, the suction cup assembly includes a suction cup body, a lifting and rotating assembly that controls the lifting and rotating of the suction cup body, and a limiting component. The lifting and rotating assembly and the limiting component are both connected to the suction cup body. The lifting and rotating assembly drives the suction cup body to rotate or rise and fall to a designated position, and is then limited and locked by the limiting component.

[0009] Preferably, the lifting and rotating assembly includes a suction cup lifting cylinder, a suction cup rotating cylinder, a rotating swing linkage, and a bearing seat. The suction cup lifting cylinder is connected to the suction cup body, and the suction cup rotating cylinder is connected to the suction cup body through the rotating swing linkage. The limiting component is a limiting electromagnetic lock. The suction cup rotating cylinder drives the suction cup body to rotate around the bearing seat through the rotating swing linkage, and the position is locked by the limiting electromagnetic lock after rotating to the correct position.

[0010] Preferably, the sweeper is further equipped with a filtration system for filtering the waste absorbed by the suction cup assembly, the filtration system being connected between the suction cup assembly and the liftable waste bin. This arrangement ensures that the waste from the suction cup assembly first enters the filtration system, and the filtered and separated waste then falls into the liftable waste bin.

[0011] Preferably, the filtration system includes a primary filter and a fine filter plate, with the fine filter plate positioned above the primary filter. The primary filter has a mesh diameter of 1.5mm to 2mm, and the fine filter plate has an interception efficiency of 95% to 99.95% for particles of 0.3μm to 0.5μm.

[0012] Preferably, the filtration system is further provided with a vibration motor for driving the vibration of the primary filter screen and the fine filter plate. The vibration motor is connected to the primary filter screen and the fine filter plate. The filtration system is also provided with shock-absorbing springs for vibration reduction. The wire diameter of the shock-absorbing springs is 4.8mm~5mm, the single force is 990N~992N, and the maximum stress is 76Kgf / mm²~80Kgf / mm².

[0013] Preferably, the filtration system further includes a baffle plate, which is positioned below the primary filter screen, and the gap between the baffle plate and the primary filter screen is 0.2 mm.

[0014] Preferably, the all-terrain sweeper is equipped with a filter compartment, the filter system is installed inside the filter compartment, and the filter compartment is connected to the suction cup assembly.

[0015] The present invention also provides an application method based on the aforementioned all-terrain sweeper, which includes a road surface sensor, and the specific steps are as follows:

[0016] S1: The controller receives signals from the road surface sensor to determine whether there are obstacle posts ahead;

[0017] S2: When an obstacle is detected, the controller controls the side brush assembly on the side closest to the obstacle to rise and avoid it, while the other side brush assembly lowers to continue cleaning.

[0018] S3: The lifting and rotating assembly controls the suction cup assembly to descend and rotate to the side away from the obstacle post;

[0019] S4: The height-adjustable trash can can be tilted upwards at 45°~90°;

[0020] S5: The sweeper passes through the passage between the obstacle posts at a deceleration rate of 0.5km / h-2km / h;

[0021] S6: After passing through the obstacle area, the suction cup assembly returns to center, the adjustable dustbin resets, and the side brush assembly resumes dual-side cleaning mode.

[0022] Preferably, during step S5 when passing through the obstacle pile area, the airflow that is not processed in time flows back to the suction cup assembly through the circulation recovery pipe, and then is re-inhaled into the filter chamber through the main suction pipe for secondary processing.

[0023] Beneficial effects

[0024] The present invention has the following beneficial effects: The sweeper body is equipped with a controller for controlling an adjustable side brush assembly, a height-adjustable and rotatable suction cup assembly, and a height-adjustable garbage bin, as well as a road surface sensor for sensing. The road surface sensor is electrically connected to the controller. When encountering an obstacle, the suction cup assembly rotates to one side of the vehicle body, and together with the height-adjustable garbage bin, flips upwards, creating a central passage for the obstacle to pass through. When encountering an obstacle, the road surface sensor detects it and transmits a signal to the controller. The controller then controls the side brush assembly, the height-adjustable and rotatable suction cup assembly, and the height-adjustable garbage bin to perform corresponding actions, thereby enabling obstacle avoidance. When encountering a central obstacle, the side brush assembly can move up and down, and when the suction cup assembly rotates to one side of the vehicle body, together with the height-adjustable garbage bin, flips upwards, creating a central passage for the obstacle to pass through, allowing the sweeper to smoothly pass over pedestrian obstacle bollards. In other words, the side brush assembly, the height-adjustable and rotatable suction cup assembly, and the adjustable dustbin can all adjust to different terrain conditions, creating an all-terrain sweeper capable of mechanized cleaning via obstacle courses, sidewalks, and non-motorized vehicle lanes. The side brush assembly can lift and lower independently to the left and right, flexibly avoiding obstacle courses and ensuring thorough cleaning coverage on both sides of the sidewalk. The suction cup assembly can lift, lower, and rotate 90 degrees to one side, working in conjunction with the adjustable dustbin to create a central passage for the sweeper to smoothly pass over sidewalk obstacle courses. The selected shock-absorbing springs effectively eliminate vibration transmission and noise while ensuring efficient dust removal; actual noise levels are below 70 dB. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an all-terrain sweeper according to the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the structure with part of the outer shell removed;

[0027] Figure 3 This is a schematic diagram of the suction cup assembly;

[0028] Figure 4 This is a schematic diagram of the filtration system structure;

[0029] Figure 5 This is a schematic diagram showing the connection between the filter chamber and the suction cup assembly.

[0030] Figure 6 This is a partial schematic diagram of the filter chamber;

[0031] Figure 7 This is a block diagram illustrating the control principle of an all-terrain sweeper. Detailed Implementation

[0032] 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.

[0033] Example

[0034] like Figures 1 to 7 The illustration shows an embodiment of an all-terrain sweeper, comprising a sweeper body 1, an adjustable side brush assembly 2, a liftable and rotatable suction cup assembly 3, and a liftable dustbin 4. The adjustable side brush assembly 2, the liftable and rotatable suction cup assembly 3, and the liftable dustbin 4 are all mounted on the sweeper body 1. The sweeper body 1 is equipped with a controller 9 for controlling the adjustable side brush assembly 2, the liftable and rotatable suction cup assembly 3, and the liftable dustbin 4, and a road surface sensor 10 for sensing. The road surface sensor 10 is electrically connected to the controller 9. When encountering an obstacle, the suction cup assembly 3 rotates to one side of the vehicle body, and together with the liftable dustbin 4, flips upwards, creating a central passage for the obstacle to pass through in the middle of the vehicle body. The side brush assembly 2 includes a front side brush 21 and a rear side brush 22, both of which are connected to the sweeper body 1. Furthermore, the controller 9 is also electrically connected to the side brush assembly 2, the liftable and rotatable suction cup assembly 3, and the liftable dustbin 4.

[0035] It should be noted that the controller can be a microcontroller or other chips, as long as it can achieve control. The road surface sensor 10 only needs to be able to provide sensing and prompting; a general-purpose sensor can be selected.

[0036] The suction cup assembly 3 includes a suction cup body 31, a lifting and rotating assembly 32 that controls the lifting and rotating of the suction cup body 31, and a limiting component 33. Both the lifting and rotating assembly 32 and the limiting component 33 are connected to the suction cup body 31. The lifting and rotating assembly 32 drives the suction cup body 31 to rotate or rise to a designated position, which is then locked by the limiting component 33. It should be noted that the limiting component 33 is equipped with a position sensor; when the suction cup body 31 rotates to the designated position, the position sensor sends a locking confirmation signal to the controller 9.

[0037] In addition, the lifting and rotating assembly 32 includes a suction cup lifting cylinder 321, a suction cup rotating cylinder 322, a rotating swing link 323, and a bearing seat 324. The suction cup lifting cylinder 321 is connected to the suction cup body 31, and the suction cup rotating cylinder 322 is connected to the suction cup body 31 through the rotating swing link 323. The limiting component 33 is a limiting electromagnetic lock. The suction cup rotating cylinder 322 drives the suction cup body 31 to rotate around the bearing seat 324 through the rotating swing link 323. After rotating to the correct position, the limiting electromagnetic lock locks the position.

[0038] The sweeper is also equipped with a filtration system 5 for filtering the garbage absorbed by the suction cup assembly 3. The filtration system 5 is connected between the suction cup assembly 3 and the liftable garbage bin 4.

[0039] In addition, the filtration system 5 is provided with a primary filter screen 51 and a fine filter plate 52, with the fine filter plate 52 located above the primary filter screen 51; the mesh diameter of the primary filter screen is 1.5mm~2mm, and the interception efficiency of the fine filter plate 52 for 0.3μm~0.5μm particles is 95%-99.95%.

[0040] The filtration system 5 is also equipped with a vibration motor 53 for driving the vibration of the primary filter screen 51 and the fine filter plate 52. The vibration motor 53 is connected to the primary filter screen 51 and the fine filter plate 52. The filtration system 5 is also equipped with a shock-absorbing spring 54 for shock absorption. The wire diameter of the shock-absorbing spring 54 is 4.8mm~5mm, the single force is 990N~992N, and the maximum stress is 76Kgf / mm²~80Kgf / mm².

[0041] In addition, the filtration system 5 is also equipped with a baffle plate 55, which is located below the primary filter screen 51, and the gap between the baffle plate 55 and the primary filter screen 51 is 0.2mm.

[0042] The all-terrain sweeper includes a filter compartment 6, within which a filtration system 5 is housed. The filter compartment 6 is connected to the suction cup assembly 3. The sweeper also features a battery compartment 7 with a drawer-style installation, allowing for easy and quick battery removal and installation. Preferably, the battery compartment's electric ejection mechanism enables rapid battery swapping, reducing downtime and improving continuous operation efficiency. When the battery level drops below 20%, the controller 9 issues a replacement prompt, allowing the operator to quickly replace the battery pack using the electric ejection mechanism of the battery compartment 7, with a replacement time not exceeding 3 minutes. Preferably, the electric ejection mechanism of the battery compartment 7 includes a lead screw motor and a slide rail. The battery pack is fixed to the slide plate, and the lead screw motor drives the slide plate to slide along the slide rail out from the side of the vehicle body, enabling rapid replacement. It should be noted that this structure is only a preferred option and not a restrictive requirement.

[0043] Preferably, the liftable garbage bin 4 can be connected to the main body 1 of the sweeper via a hinge, and the tilting action is driven by an electric push rod or a hydraulic rod, with a tilting angle range of 0-90 degrees. It should be noted that this is only a preferred option and not a restrictive provision.

[0044] The present invention also provides an application method based on the aforementioned all-terrain sweeper, which includes a road surface sensor 10, and the specific steps are as follows:

[0045] S1: Controller 9 receives the signal from road surface sensor 10 and determines whether there is an obstacle ahead;

[0046] S2: When an obstacle is detected, the controller 9 controls the side brush assembly 2 on the side closest to the obstacle to rise and avoid it, while the other side brush assembly 2 lowers to continue cleaning.

[0047] S3: The lifting and rotating assembly 32 controls the suction cup assembly 3 to descend and rotate to the side away from the obstacle post;

[0048] S4: The height-adjustable trash can 8 can be tilted upwards at 45°~90°;

[0049] S5: The sweeper passes through the passage between the obstacle posts at a deceleration rate of 0.5km / h-2km / h;

[0050] S6: After passing through the obstacle area, the suction cup assembly 3 returns to center, the liftable trash can 8 resets, and the side brush assembly 2 resumes the dual-side cleaning mode.

[0051] During step S5, when passing through the obstacle pile area, the airflow that is not processed in time flows back to the suction cup assembly 3 through the circulation recovery pipe 61, and then is re-inhaled into the filter chamber 6 through the main suction pipe 62 for secondary processing.

[0052] In addition, after the suction cup assembly 3 rotates 90 degrees and swings to one side in step S3, the rectangular outlet of the circulating air outlet 63 faces the ground, so that the gas is evenly discharged into the suction cup, achieving a stable circulation and recycling effect.

[0053] It should be noted that there is an interlock delay between steps S3 and S4: after the controller 9 issues the suction cup rotation command, it must wait 0.5s to 1.5s after receiving the position feedback signal from the limit electromagnetic lock before triggering the trash can flipping command, in order to prevent mechanical interference caused by the suction cup not being locked.

[0054] Furthermore, if the road surface sensor 10 detects a new obstacle during step S5, the controller 9 is configured to pause forward movement and repeat the fine-tuning sequence of S2 to S4 until the channel width meets the safety requirements.

[0055] The specific working principle is as follows:

[0056] The working principle of the suction cup assembly is as follows: Figure 3 As shown, the suction cup assembly 3 includes a suction cup body 31, a suction cup waste inlet 34, a dust circulation collection port 35, a front sweeping motor 36, a suction cup lifting cylinder 321, a suction cup rotating cylinder 322, a rotating swing linkage 323, a bearing seat 324, a limiting component 33, and a front sweeping structure 37. The front sweeping motor 36 is connected to the front sweeping structure 37. Both the suction cup waste inlet 34 and the dust circulation collection port 35 are located on the suction cup body 31.

[0057] During operation, the suction cup lifting cylinder 321 extends to lower the suction cup body 31 and bring the wheels to the ground; at the same time, the front sweeping motor 36 starts and drives the front sweeping 10 to rotate, guiding the garbage to the suction cup garbage inlet 34. The front sweeping structure 37 effectively limits the amount of garbage entering the suction cup body 31 and prevents excessive garbage from clogging the suction cup garbage inlet 34.

[0058] When it is necessary to pass through the obstacle, the suction cup rotary cylinder 322 retracts, pulling the rotary swing linkage 323 to rotate the suction cup body 31 90 degrees around the bearing seat 8 and swing it to one side of the vehicle body; after it reaches the position, the limiting component 33, which is the limiting electromagnetic lock, automatically pops out to lock the suction cup body 31 in that position. At this time, an unobstructed passage is left in the middle of the vehicle body, and the sweeper can pass through the obstacle smoothly.

[0059] Dust that is not processed in time in the filter chamber 6 is recycled back into the suction cup assembly 3 through the dust circulation collection port 35 for circulation processing, thereby reducing the pressure on the filter plate in the filter chamber 6.

[0060] The working principle of the filtration system is as follows: Figure 4 As shown, the filtration system 5 includes a baffle plate 55, a shock-absorbing spring 54, a baffle plate motor 56, a primary filter screen 51, a vibration motor 53, a fine filter plate 52, a buffer sealing film 57, a filter plate connecting frame 58, a primary filter screen sealing strip 59, and a spring fixing seat 67.

[0061] The shock-absorbing spring 54, primary filter screen 51, vibration motor 53, fine filter plate 52, filter plate connecting frame 58, and primary filter screen sealing strip 59 form an independent unit, connected to the buffer sealing film 57 via spring fixing seat 67. The toggle motor 56 is connected to the toggle plate 55. One end of the shock-absorbing spring 54 is connected to the spring fixing seat 67, and the other end is installed on the filter plate connecting frame 58. The primary filter screen sealing strip 59 and the buffer sealing film 57 are both designed for sealing to prevent waste leakage.

[0062] When the vibration motor 53 starts, the primary filter 51 and the fine filter plate 52 vibrate simultaneously, causing dust to fall down synchronously and preventing clogging of the mesh of the primary filter 51. Experiments have determined that the optimal mesh diameter of the primary filter 51 is 1.5mm to 2mm: meshes larger than 2mm will cause larger particles to enter the fine filter plate 52, causing clogging and reducing airflow by approximately 30%; meshes that are too small will prevent dust from falling smoothly from the fine filter plate, also leading to clogging. It should be noted that in this embodiment, the preferred mesh diameter of the primary filter 51 is 2mm.

[0063] The fine filter plate 52, after testing, achieves an optimal interception efficiency of 95%-99.95% for particles ranging from 0.4μm to 0.5μm.

[0064] It can effectively intercept fine dust and bacteria swept up from the ground, ensuring that the exhaust gas is clean and pollution-free. If a fine filter plate larger than 5 micrometers is used, fine dust may be released into the air, causing secondary pollution and affecting pedestrian health. It should be noted that the fine filter plate 52 in this embodiment has an interception efficiency of 95%-99.95% for 0.4μm particles.

[0065] Tests have determined that the optimal gap between the baffle plate 55 and the primary filter 51 is 0.2mm: this effectively pushes dust and debris into the lower trash can; a gap greater than 0.2mm will prevent dust from being smoothly pushed off 51, causing blockage; a gap less than 0.2mm will cause friction with the primary filter 51, generating noise and damaging both the baffle plate 55 and the primary filter 51.

[0066] The shock-absorbing spring 54 has a wire diameter of 4.8mm~5mm, a single-strand force of 990N~992N, and a maximum stress of 76Kgf / mm²~80Kgf / mm². In this embodiment, the shock-absorbing spring 2 uses a 5mm wire diameter, a single-strand force of 992N, and a maximum stress of 76Kgf / mm². During dust removal, it can effectively eliminate vibration transmission, reduce noise, and ensure stable amplitude during vibration without touching the surrounding steel plates. Experiments showed that if a 4mm wire diameter (force 406N) is used, the spring is too soft, causing the support to rub against the surrounding steel plates and generate noise; if a 6mm wire diameter (force 2058N) is used, the spring is too stiff, causing vibration to be transmitted to the steel plates, generating noise, and reducing dust removal efficiency.

[0067] The working principle of the filter chamber is as follows: Figure 5 and Figure 6 As shown, the filter chamber 6 is equipped with a circulation recovery pipe 61, a main suction pipe 62, and a circulation air outlet 63. The filter chamber 6 is connected to the suction cup assembly 3 through the circulation recovery pipe 61 and the main suction pipe 62 to form a dual-channel connection. The circulation air outlet 63 is located on the filter chamber 6 and communicates with its interior. The liftable trash can 4 is connected to the filter chamber 6, located below the filter chamber 6, and communicates with it.

[0068] During operation, the suction cup assembly 3 transports the waste to the filter chamber 6 via the main suction pipe 62. The filter chamber 6 separates the waste: the separated air is discharged outside the vehicle through the circulating air outlet 63, and the separated waste falls into the lower liftable waste bin 4. Preferably, the main suction pipe 62 between the suction cup assembly 3 and the filter chamber 6 is equipped with a valve control, which can adjust the suction power according to the working conditions.

[0069] For gases that cannot be processed in time, the system guides them back to the suction cup assembly 3 through the circulation recovery pipe 61, and then re-inhales them into the filter chamber 6 through the main suction pipe 62 for secondary treatment.

[0070] Specifically: The suction cup assembly 3 transports garbage to the filter chamber 6 through the main suction pipe 62. The deflector plate 55 and the primary filter screen 51 separate the garbage containing particles, causing it to fall into the Cocoa Lifting Garbage Bin 4. The dusty air passes through the fine filter plate 52, which separates the dust, and then it is discharged outside the vehicle through the circulating air outlet 63. The dust on the fine filter plate 52 is vibrated by the vibration motor 53 and falls into the Cocoa Lifting Garbage Bin 4 along with the dust on the primary filter screen 51.

[0071] The circulating air outlet 63 adopts a rectangular outlet structure, with a larger air passage area than the circulating recovery pipe 61, improving exhaust efficiency without affecting gas flow rate. The rectangular outlet allows gas to be discharged more evenly into the suction cup, achieving a stable circulation and recovery effect. The design of the circulating recovery pipe 61 and the rectangular circulating air outlet ensures that gas is evenly discharged into the suction cup, achieving a stable circulation and recovery effect without any garbage leakage. It should be noted that the circulating recovery pipe 61 and the rectangular circulating air outlet 63 form an airflow recirculation loop. When the sweeper passes the obstacle at a low speed of 0.5km / h~2km / h, the suction cup body 31 is in a side-swinging state, and the negative pressure field distribution of the main suction pipe 62 is uneven. At this time, the airflow that is not processed in time in the filter chamber 6 flows back to the suction cup assembly 3 through the circulating recovery pipe 61 and is discharged at a uniform surface wind speed through the rectangular air outlet, forming a new local negative pressure zone between the suction cup and the ground, compensating for the negative pressure loss caused by the side-swinging of the suction cup, and ensuring that the garbage around the obstacle can still be effectively adsorbed. Experiments show that this circulation loop can maintain the dust collection efficiency at over 85% of that in straight-line operation under side-swing conditions.

[0072] In this embodiment, the side brush assembly 2 is located on the left and right sides of the front of the vehicle body. Each side brush is driven by an independent motor and its lifting and lowering are controlled by an electric push rod. The battery compartment 7 is located on the side of the middle of the vehicle body, and is equipped with a lead screw motor and a slide rail. The battery pack is fixed on the slide plate. The suction cup assembly 3 is located at the bottom of the vehicle body and achieves lifting and 90-degree swinging through a lifting mechanism and a rotating mechanism. The liftable garbage bin 4 is located at the rear of the vehicle body and is flipped upwards through a hinge and an electric push rod. The controller (9) receives the signal from the road surface sensor 10 and coordinates the lifting and swinging of each controllable component. When the road surface sensor 10 detects a pedestrian walkway bollard ahead, the controller 9 performs the following coordinated actions: the side brush assembly 2 near the bollard rises to avoid it; the suction cup assembly 3 descends and rotates 90 degrees to swing to the side of the vehicle away from the bollard; and the liftable garbage bin 4 tilts upwards to 45-90 degrees. These three actions work together to create a passage in the middle of the vehicle with a width not less than the distance between the bollards, allowing the sweeper to pass through the bollards at a deceleration rate of 0.5-2 km / h. After passing, all components reset and bilateral cleaning resumes, achieving fully automatic all-terrain obstacle avoidance and cleaning. While some existing sweepers can cross curbs, their suction cups and garbage bins are fixed, making it impossible to avoid bollards spaced 0.8 meters apart on a sidewalk only 1.2 meters wide. The effect of this invention is very significant.

[0073] The above description is merely a preferred embodiment of the present invention and is 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. An all-terrain floor-scrubbing vehicle characterized by, The sweeper body includes an adjustable side brush assembly (2), a liftable and rotatable suction cup assembly (3), and a liftable garbage bin (4). The adjustable side brush assembly (2), the liftable and rotatable suction cup assembly (3), and the liftable garbage bin (4) are all mounted on the sweeper body (1). The sweeper body (1) is equipped with a controller (9) for controlling the adjustable side brush assembly (2), the liftable and rotatable suction cup assembly (3), and the liftable garbage bin (4) and a road surface sensor (10) for sensing. The road surface sensor (10) is electrically connected to the controller (9). When encountering an obstacle in the middle, the suction cup assembly (3) rotates to one side of the vehicle body and flips upward together with the liftable garbage bin (4) to reserve a middle channel in the middle of the vehicle body for the obstacle to pass through.

2. The all-terrain sweepers as claimed in claim 1, characterized in that: The suction cup assembly (3) includes a suction cup body (31), a lifting and rotating assembly (32) that controls the lifting and rotating of the suction cup body (31), and a limiting component (33). The lifting and rotating assembly (32) and the limiting component (33) are both connected to the suction cup body (31). The lifting and rotating assembly (32) drives the suction cup body (31) to rotate or lift to a specified position, and is limited and locked by the limiting component (33).

3. The all-terrain sweepers as claimed in claim 2, characterized in that: The lifting and rotating assembly (32) includes a suction cup lifting cylinder (321), a suction cup rotating cylinder (322), a rotating swing link (323), and a bearing seat (324). The suction cup lifting cylinder (321) is connected to the suction cup body (31), and the suction cup rotating cylinder (322) is connected to the suction cup body (31) through the rotating swing link (323). The limiting component (33) is a limiting electromagnetic lock. The suction cup rotating cylinder (322) drives the suction cup body (31) to rotate around the bearing seat (324) through the rotating swing link (323). After rotating to the correct position, the limiting electromagnetic lock locks the position.

4. The all-terrain sweeper according to claim 3, characterized in that: The sweeper is also equipped with a filtration system (5) for filtering the garbage absorbed from the suction cup assembly (3), the filtration system (5) being connected between the suction cup assembly (3) and the liftable garbage bin (4).

5. The all-terrain sweeper according to claim 4, characterized in that: The filtration system (5) is provided with a primary filter screen (51) and a fine filter plate (52), with the fine filter plate (52) located above the primary filter screen (51); the mesh diameter of the primary filter screen is 1.5mm~2mm, and the interception efficiency of the fine filter plate (52) for 0.4μm~0.5μm particles is 95%-99.95%.

6. The all-terrain sweeper according to claim 5, characterized in that: The filtration system (5) is also provided with a vibration motor (53) for driving the primary filter screen (51) and the fine filter plate (52) to vibrate. The vibration motor (53) is connected to the primary filter screen (51) and the fine filter plate (52). The filtration system (5) is also provided with a shock-absorbing spring (54) for shock absorption. The shock-absorbing spring (54) has a wire diameter of 4.8mm~5mm, a single force of 990N~992N, and a maximum stress of 76Kgf / mm²~80Kgf / mm².

7. The all-terrain sweeper according to claim 6, characterized in that: The filtration system (5) is also provided with a baffle plate (55), which is located below the primary filter screen (51), and the gap between the baffle plate (55) and the primary filter screen (51) is 0.2 mm.

8. The all-terrain sweeper according to claim 6 or 7, characterized in that: The all-terrain sweeper is equipped with a filter chamber (6), and the filter system (5) is installed inside the filter chamber (6). The filter chamber (6) is connected to the suction cup assembly (3).

9. An application method based on the all-terrain sweeper according to any one of claims 1 to 8, characterized in that, A road surface sensor (10) is installed. The specific steps are as follows: S1: The controller (9) receives the signal from the road surface sensor (10) and determines whether there is an obstacle in front; S2: When an obstacle is detected, the controller (9) controls the side brush assembly (2) on the side closest to the obstacle to rise and avoid it, while the other side brush assembly (2) lowers to continue cleaning. S3: The lifting and rotating assembly (32) controls the suction cup assembly (3) to descend and rotate to the side away from the obstacle post; S4: The liftable trash can (8) can be tilted upwards at 45°~90°; S5: The sweeper passes through the passage between the obstacle posts at a deceleration rate of 0.5km / h-2km / h; S6: After passing through the obstacle post area, the suction cup assembly (3) returns to center, the liftable trash can (8) resets, and the side brush assembly (2) resumes the dual-side cleaning mode.

10. The application method of the all-terrain sweeper according to claim 9, characterized in that, During step S5, when passing through the obstacle pile area, the airflow that is not processed in time flows back to the suction cup assembly (3) through the circulation recovery pipe (61), and then is re-inhaled into the filter chamber (6) through the main suction pipe (62) for secondary processing.

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