Self-adaptive transverse suction nozzle for a washing and sweeping vehicle and control method thereof

Abstract

This invention provides an adaptive lateral suction nozzle for a sweeper truck and its control method, relating to the field of suction nozzles for sweeper trucks. The nozzle includes: a lifting frame installed on the corresponding underside of the vehicle body; a sliding frame laterally slidably connected to the lifting frame and driven to move laterally left and right by a lateral drive device; and a suction nozzle mechanism including a suction nozzle housing with the sliding frame connected at the top and an open bottom, and a partition driven laterally by an adjustment drive device and disposed within the suction nozzle housing. The partition divides the inner cavity of the suction nozzle housing into left and right suction chambers. The two suction chambers are respectively connected to the vehicle's garbage bin and a suction device via a connecting component. The connecting component is equipped with an opening and closing device. A garbage identification device for detecting garbage location is provided at the front of the suction nozzle housing. Several left detection devices and several right detection devices are respectively provided in the two suction chambers for detecting the amount of garbage in each chamber. By moving the partition, ineffective airflow at the top of the suction chamber on the side with more garbage or more garbage is reduced, increasing suction power for rapid garbage collection.

Description

Technical Field

[0001] This invention relates to the field of suction nozzles for sweeper trucks, specifically to an adaptive lateral movement suction nozzle for sweeper trucks and its control method. Background Technology

[0002] The suction nozzle of existing sweeper trucks is usually a downward-facing cavity structure formed by left and right side plates, rear sealing plate, front baffle, and top plate. The top plate has a connection port for connecting the suction nozzle and the suction cylinder. The suction cylinder is connected to the garbage bin to realize the pipeline connection between the suction nozzle and the garbage bin.

[0003] Currently, to ensure effective road sweeping, most suction nozzles used are wide-mouth, dual-suction-port structures. However, during actual sweeping, garbage often accumulates on the curb side, and the suction nozzle cannot completely reach the edge to pick up the garbage, resulting in some garbage remaining on the road. At the same time, the suction port on the side away from the curb encounters very little or no garbage, leading to a significant amount of wasted effort from the suction nozzle and a substantial waste of power.

[0004] The purpose of this invention is to design an adaptive lateral suction nozzle for sweeper trucks and its control method to address the problems existing in the prior art. Summary of the Invention

[0005] This invention provides an adaptive lateral suction nozzle for a sweeper truck and its control method, which can effectively solve the above-mentioned problems.

[0006] This invention is implemented as follows:

[0007] An adaptive lateral suction nozzle for a sweeper truck includes:

[0008] The lifting frame is installed on the corresponding underside of the vehicle body;

[0009] The sliding frame is laterally slidably connected to the lifting frame and is driven to move left and right laterally by the lateral movement drive device;

[0010] The suction nozzle mechanism includes a suction nozzle housing connected to the sliding frame at the top and open at the bottom, and a partition plate that is laterally moved within the suction nozzle housing by an adjustment drive device. The partition plate divides the inner cavity of the suction nozzle housing into left and right suction chambers. The two suction chambers are respectively connected to the garbage bin of the vehicle body and the suction device through a connecting component. The connecting component is provided with an opening and closing device. The front of the suction nozzle housing is provided with a garbage identification device for detecting the garbage position. The two suction chambers are provided with a number of left detection devices and a number of right detection devices for detecting the amount of garbage in the two suction chambers, respectively. The lateral movement drive device drives the sliding frame to move laterally until the suction nozzle housing corresponds to the garbage in front of it based on the detection feedback of the garbage identification device. The adjustment drive device drives the partition plate to move towards the side with a larger amount of garbage based on the comparison result of the amount of garbage in the two suction chambers detected by the left and right detection devices.

[0011] As a further improvement, both of the aforementioned connecting components include a suction cylinder located at the top of the suction nozzle housing and connected to the corresponding suction chamber, and a suction pipe connecting the suction cylinder and the trash can. The suction cylinders of the two connecting components are symmetrically arranged side by side on the rear side of the top of the suction nozzle housing. The inner diameter of the suction cylinder is smaller at the top and larger at the bottom. The left detection device and the right detection device are symmetrically arranged side by side on the front part of the side wall of the two suction chambers on the far side. The left and right outer walls of the suction nozzle housing are symmetrically provided with sensing devices for sensing curbs.

[0012] As a further improvement, the adjustment drive device is provided in two parts, which are respectively arranged laterally on the top of the front and rear inner walls of the nozzle housing. The adjustment drive device includes a drive motor and a lead screw connected to the output end of the drive motor. The two lead screws pass through and connect to the upper part of the partition.

[0013] As a further improvement, the lifting frame includes a horizontally arranged guide frame. The front and rear parts of the guide frame are provided with slide rail square tubes, and the left and right parts are provided with connecting square tubes connecting the two slide rail square tubes. The sliding frame is installed inside the guide frame. The sliding frame includes two angle steels arranged symmetrically front and rear with opposite openings, several cylinder fixing plates fixedly mounted between the tops of the two angle steels, several connecting seats installed on the top of the suction nozzle housing, and several corner plates detachably arranged symmetrically on the front and rear sides of the connecting seats with opposite openings. The opening sides of the two angle steels are detachably provided with upper sliders and side sliders that are slidably connected to the tops and opposite sides of the two slide rail square tubes. The tops of the several corner plates are detachably provided with lower sliders that are slidably connected to the bottoms of the two slide rail square tubes. The horizontal movement driving device is a sliding cylinder. The cylinder of the sliding cylinder is detachably mounted at the bottom of the several cylinder fixing plates. The left and right telescopic ends of the sliding cylinder are rotatably connected to the opposite sides of the two connecting square tubes, respectively.

[0014] As a further improvement, the corner plate has several vertically extending oval adjustment holes on the side near the connecting seat. The corner plate is locked to the connecting seat after passing through the adjustment holes with screws. The distance between the upper slider and the lower slider can be adjusted by the screws and the adjustment holes.

[0015] As a further improvement, the lifting frame also includes several connecting frames mounted on the top of the guide frame and connected to the front and rear ends of the two slide rail square tubes. The front of the slide rail square tube is provided with two connecting ear plates. The vehicle body includes a sub-frame and a chassis beam located at the bottom of the sub-frame. Several lifting drive devices with their lower ends connected to the connecting frames via chains are rotatably mounted on the sub-frame. Limiting frames extending downward to the front of the lifting frame are provided on the left and right sides of the chassis beam. Two limiting rods are rotatably connected between the two limiting frames and the two connecting ear plates.

[0016] As a further improvement, the waste identification device is provided with two devices symmetrically arranged on the left and right sides of the suction nozzle housing. The waste identification device on the right side includes a rotating base mounted on the top front side of the suction nozzle housing and capable of rotation; a swing rod with one end connected to the rotating base and the other end extending first to the right and then tilting backward; a vision device vertically inserted and fixed to the other end of the swing rod; and a swing drive device with one end rotatably connected to the top of the suction nozzle housing and the telescopic end rotatably connected to the rear of the rotating base. A limit spring is connected between the other end of the swing rod and the right front part of the rotating base. The swing drive device is used to drive the rotating base to rotate and drive the swing rod to swing, so as to drive the vision device to scan left and right to detect the position of waste in front of the suction nozzle housing.

[0017] As a further improvement, several support frames are fixedly arranged side by side on the front and rear top of the nozzle housing, and support wheels are rotatably provided on the bottom of the support frames at the ends away from the nozzle housing. When the support wheels contact the ground, the bottom of the nozzle housing is separated from the ground.

[0018] A control method for an adaptive lateral suction nozzle for a sweeper truck as described above includes the following steps:

[0019] S1, During the movement of the sweeper, the swing drive device drives the rotating seat to rotate and drive the swing arm to swing, so that the vision device scans left and right to detect the position of the garbage in front of the suction nozzle housing. When the garbage is detected to be on the side of the curb, the lateral drive device drives the sliding frame to move laterally according to the detection feedback of the vision device until the suction nozzle housing is directly behind the garbage and stops. The two opening and closing devices open and the two suction chambers start negative pressure suction operation.

[0020] S2, During the negative pressure suction operation of the two suction chambers, the amount of garbage in the two suction chambers detected by the left and right detection devices is compared; when the amount of garbage on one side is large, the drive device is adjusted to drive the partition to move slowly towards the side with large amount of garbage, so as to reduce the space of the suction chamber on the side with large amount of garbage and gather the garbage in the suction chamber on the side with large amount of garbage.

[0021] S3, after the suction chamber finishes collecting garbage, the opening and closing device closes the corresponding connecting components to stop the negative pressure suction operation of the two suction chambers. The lateral drive device drives the sliding frame to reset, the swing drive device drives the vision device to reset, and the lifting drive device drives the lifting frame to rise so that the suction nozzle mechanism can be raised and stored at the bottom of the sweeper. The sweeper operation is completed.

[0022] As a further improvement, step S2 also includes:

[0023] When all the waste is on one side, the opening and closing device on the waste-free side closes the connecting component on the waste-free side to stop the negative pressure suction operation of the suction chamber on the waste-free side.

[0024] The beneficial effects of this invention are:

[0025] 1. The transverse drive device of the present invention can drive the sliding frame to move laterally to correspond with the suction nozzle housing based on the detection feedback of the waste identification device. The adjustment drive device can drive the partition to move towards the side with a larger amount of waste based on the comparison results of the amount of waste in the two suction chambers detected by the left detection device and the right detection device. This allows the suction nozzle housing to move laterally behind the garbage when it accumulates on the curb, enabling the suction chamber to pick up the garbage close to the edge and prevent it from remaining on the road. When there is a large amount of garbage on one side, the baffle moves slowly towards the side with the larger amount of garbage to gather the garbage in the suction chamber on that side, reduce ineffective airflow at the top of the suction chamber on that side, increase the suction power of the suction chamber on that side, and quickly pick up the garbage, thus improving the efficiency of road garbage cleaning. When all the garbage is on one side, the opening and closing device on the garbage-free side closes the connecting component on that side to stop the negative pressure suction operation of the suction chamber on that side, avoiding power waste and saving energy. At the same time, the adjustment drive device drives the baffle to move slowly towards the side with garbage, gathering the garbage in the suction chamber on that side and reducing ineffective airflow at the top of the suction chamber on that side, increasing the suction power of the suction chamber on that side, and quickly picking up the garbage. This not only improves the efficiency of road garbage cleaning but also avoids wasted effort, reduces the driving power of the suction device, lowers energy consumption, and saves energy and protects the environment.

[0026] 2. This invention, through the front placement of the left and right detection devices and the rear placement of the two suction cylinders, provides the control system with the time to adjust the movement of the partition after receiving the detection signals. This ensures that when the vehicle body moves to the point where the two suction chambers reach above the garbage, the partition has already moved and adjusted the suction force on both sides. The garbage on the side with a large amount of garbage or the side with garbage is directly sucked up by the strong suction force and enters the garbage bin through the suction pipe. The reasonable structural design improves the smoothness of control and makes the partition movement adjustment timely. At the same time, the setting of the sensing device avoids the suction nozzle shell from colliding with the curb and being damaged, improving the stability of the suction nozzle mechanism during operation and extending its service life.

[0027] 3. The front and rear sides of the sliding frame of the present invention are respectively C-shapedly slidably clamped on the slide rail square tube by the upper slider, the side slider and the lower slider, so as to provide limiting guidance for the left and right lateral movement of the sliding frame through the slide rail square tube, while improving the sliding connection strength between the sliding frame and the lifting frame, and improving the stability of the left and right lateral movement of the sliding frame.

[0028] 4. The left and right sweeping plates of the present invention can slide down to the left and right scraping parts and scrape the garbage by being guided by the first and second sliding grooves during the left and right movement, respectively. This improves the collection effect of garbage on the side with a large amount of garbage or the side with garbage, avoids garbage residue on the ground, and improves the ground cleaning effect of the sweeper. At the same time, under the guidance of the first and second sliding grooves on both sides, the left and right sweeping plates can limit the lateral movement of the partition in the front-back and up-down directions, prevent the partition from deflecting during the lateral movement, and improve the stability of the lateral movement of the partition. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the rear view structure of the sweeper installed on the sweeper truck in Example 1.

[0031] Figure 2 This is a schematic diagram of the right-side structure of the sweeper installed on the sweeper truck in Example 1.

[0032] Figure 3 This is a schematic diagram of the structure of Embodiment 1.

[0033] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0034] Figure 5 for Figure 3 A bottom view.

[0035] Figure 6 This is a structural schematic diagram of the lifting frame and sliding frame provided in Embodiment 1.

[0036] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure at point AA.

[0037] Figure 8 This is a structural schematic diagram of the lifting frame provided in Embodiment 1.

[0038] Figure 9 This is a structural schematic diagram of the sliding frame provided in Embodiment 1.

[0039] Figure 10 This is a schematic diagram of a half-section structure of Example 2. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 a part of the embodiments of the present invention, not all of them. 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. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. 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.

[0041] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] Example 1

[0043] Reference Figure 1-9 As shown, an adaptive lateral suction nozzle for a sweeper truck includes:

[0044] The lifting frame 1 is installed on the bottom side of the corresponding vehicle body, which is a sweeper vehicle body;

[0045] The sliding frame 2 is laterally slidably connected to the lifting frame 1 and is driven to move left and right by the lateral movement drive device 4. In this embodiment, the lateral movement drive device 4 is a differential oil cylinder. In other embodiments, the lateral movement drive device 4 can also be other existing drive devices.

[0046] The suction nozzle mechanism 3 includes a suction nozzle housing 31 with its top connected to the sliding frame 2 and its bottom open, and a partition 33 that is laterally moved within the suction nozzle housing 31 by an adjustment drive device 32. The partition 33 divides the inner cavity of the suction nozzle housing 31 into left and right suction chambers 311. The two suction chambers 311 are respectively connected to the garbage bin 5 of the vehicle body and the suction device through a connecting component 34. The connecting component 34 is provided with an opening and closing device 35. The front of the suction nozzle housing 31 is provided with a garbage identification device 36 for detecting the position of the garbage. Each of the two suction chambers 311 is equipped with a plurality of left detection devices 312 and a plurality of right detection devices 313 for detecting the amount of waste in the two suction chambers 311. The lateral movement drive device 4 drives the sliding frame 2 to move laterally until the suction nozzle housing 31 corresponds to the waste in front, based on the detection feedback from the waste identification device 36. The adjustment drive device 32 drives the partition 33 to move towards the side with the larger amount of waste, based on the comparison result of the amount of waste detected by the left detection devices 312 and the right detection devices 313 in the two suction chambers 311. Specifically, in this embodiment, the left detection devices 312 and the right detection devices 313 can be infrared sensors, and the suction device can be a fan, etc., and each device is communicatively connected to the control system.

[0047] The above-described structure allows the suction nozzle housing 31 to be moved laterally behind the garbage when it accumulates on the curb, via the sliding frame 2. This enables the suction chamber 311 to pick up the garbage close to the edge, preventing garbage residue from remaining on the road surface. When there is a large amount of garbage on one side, the partition 33 moves slowly towards the side with the large amount of garbage to gather the garbage and reduce the ineffective airflow at the top of the suction chamber 311 on the side with the large amount of garbage, increasing the suction power of the suction chamber 311 on the side with the large amount of garbage and quickly picking up the garbage, thereby improving the efficiency of road garbage cleaning. When all the garbage is on one side, the opening and closing device 3 on the side without garbage is closed. 5. Close the connecting component 34 on the side without trash to stop the negative pressure suction operation of the suction chamber 311 on the side without trash, avoid power waste, save energy and protect the environment. At the same time, adjust the drive device 32 to drive the partition 33 to move slowly towards the side with trash, so that the trash on the side with trash is gathered by the movement of the partition 33, and the ineffective airflow at the top of the suction chamber 311 on the side with trash is reduced, the suction force of the suction chamber 311 on the side with trash is increased, and the trash is quickly picked up. This not only improves the efficiency of road trash cleaning, but also avoids the generation of useless work, reduces the driving power of the suction device, reduces energy consumption, and saves energy and protects the environment.

[0048] As a further improvement, both of the connecting components 34 include a suction cylinder 341 located at the top of the suction nozzle housing 31 and connected to the corresponding suction cavity 311, and a suction pipe 342 connecting the suction cylinder 341 and the trash can 5. The suction cylinders 341 of the two connecting components 34 are symmetrically arranged side by side on the rear side of the top of the suction nozzle housing 31. The inner diameter of the suction cylinder 341 is smaller at the top and larger at the bottom. The left detection device 312 and the right detection device 313 are symmetrically arranged side by side on the front part of the side wall of the two suction cavities 311 on the far side. Thus, by the front of the left detection device 312 and the right detection device 313 and the rear of the two suction cylinders 341, After receiving the detection signal, the control system controls the movement and adjustment time of the partition 33 so that when the vehicle body moves to the two suction chambers 311 and reaches above the garbage, the partition 33 has already moved and adjusted the suction on both sides. The garbage on the side with a large amount of garbage or the side with garbage is directly sucked up by the large suction and put into the suction cylinder 341 and enters the garbage bin 5 through the suction pipe 342. The structure is reasonably designed, which improves the smoothness of control and makes the movement and adjustment of the partition 33 timely. The left and right outer walls of the suction nozzle housing 31 are symmetrically provided with sensing devices 314 for sensing the curb, thereby avoiding the suction nozzle housing 31 from colliding with the curb and damaging it, improving the stability of the suction nozzle mechanism 3 during operation, and extending its service life. Specifically, in this embodiment, the opening and closing device 35 includes a cover plate 351 rotatably disposed inside the trash can 5 and rotatably covering the end of the suction pipe 342 away from the suction tube. The cover plate 351 is driven by the opening and closing cylinder 352 to open or close the suction tube. The sensing device 314 is a proximity switch. In other embodiments, the opening and closing device 35 can also be other types of existing devices, such as valves, and the sensing device 314 can also be an infrared sensor or other existing sensing devices.

[0049] To improve the stability of the lateral movement of the partition 33, two adjustment drive devices 32 are provided, each laterally positioned at the top center of the front and rear inner walls of the suction nozzle housing 31. Each adjustment drive device 32 includes a drive motor 321 and lead screws 322 connected to the output of the drive motor 321. The two lead screws 322 pass through and connect to the upper part of the partition 33. Thus, through the synchronous drive of the front and rear lead screws 322, the partition 33 can move stably laterally. Furthermore, positioning the adjustment drive devices 32 at the top center of the front and rear inner walls of the suction nozzle housing 31 allows for a corner-mounted drive device, preventing obstruction when waste enters the suction cylinder 341 through the suction chamber 311, and ensuring the stability of waste collection by the two suction chambers 311.

[0050] To improve the stability of the sliding frame 2 driving the suction nozzle mechanism 3 to move laterally, the lifting frame 1 includes a horizontally arranged guide frame 11. The front and rear parts of the guide frame 11 are provided with slide rail square tubes 111, and the left and right parts are provided with connecting square tubes 112 connecting the two slide rail square tubes 111. The sliding frame 2 is located inside the guide frame 11. The sliding frame 2 includes two angle steels 21 arranged symmetrically front and rear with opposite openings, several cylinder fixing plates 22 fixedly mounted between the tops of the two angle steels 21, several connecting seats 23 installed on the top of the suction nozzle housing 31, and detachable symmetrically arranged on the connecting seats 23. Several angle plates 24 are arranged on the front and rear sides with opposite openings. The opening sides of the two angle steels 21 are detachably equipped with upper sliders 211 and side sliders 212 that are slidably connected to the top and opposite sides of the two slide rail square tubes 111. The top of the angle plates 24 is detachably equipped with lower sliders 241 that are slidably connected to the bottom of the two slide rail square tubes 111. The lateral movement drive device 4 is a sliding cylinder. The cylinder barrel of the sliding cylinder is detachably mounted on the bottom of several cylinder barrel fixing plates 22. The left and right telescopic ends of the sliding cylinder are rotatably connected to the opposite sides of the two connecting square tubes 112, respectively. This allows the front and rear sides of the sliding frame 2 to be C-shapedly slidably clamped onto the slide rail square tubes 111 via the upper sliders 211, side sliders 212, and lower sliders 241, providing limiting guidance for the lateral movement of the sliding frame 2 through the slide rail square tubes 111. Simultaneously, it improves the sliding connection strength between the sliding frame 2 and the lifting frame 1, and enhances the stability of the lateral movement of the sliding frame 2.

[0051] To facilitate the assembly and disassembly of the sliding frame 2, the corner plate 24 has several vertically extending oval adjustment holes 242 on the side near the connecting seat 23. The corner plate 24 is secured to the connecting seat 23 by threaded fasteners through the adjustment holes 242. The distance between the upper slider 211 and the lower slider 241 can be adjusted by the threaded fasteners engaging with the adjustment holes 242. This allows the sliding frame 2 to be adjusted according to the vertical thickness clearance of the slide rail square tube 111, facilitating the assembly and disassembly of the sliding frame 2.

[0052] To facilitate the storage of the suction nozzle mechanism 3, the lifting frame 1 also includes several connecting frames 12 mounted on the top of the guide frame 11 and connected to the front and rear ends of the two slide rail square tubes 111. The front of the slide rail square tube 111 is provided with two connecting ear plates 13. The vehicle body includes a sub-frame 6 and a chassis beam 7 located at the bottom of the sub-frame 6. Several lifting drive devices 61 with their lower ends connected to the connecting frames 12 via chains are rotatably mounted on the sub-frame 6. Limiting frames 71 extending downward to the front of the lifting frame 1 are respectively provided on the left and right sides of the chassis beam 7. Two limiting rods 72 are rotatably connected between the two limiting frames 71 and the two connecting ear plates 13. Specifically, the lifting drive device 61 is a lifting cylinder, so that after the suction mechanism 3 has finished its operation, the lifting frame 1 can be lifted by several lifting drive devices 61, thereby driving the sliding frame 2 and the suction mechanism 3 to rise and be stored at the bottom of the chassis beam 7. At the same time, during the lifting process, the lifting frame 1 is limited by two limit rods 72 to improve the stability of the lifting frame 1.

[0053] To improve the recognition range of the waste identification device 36 and avoid missing waste, the waste identification device 36 is provided with two devices symmetrically arranged on the left and right sides of the suction nozzle housing 31. The waste identification device 36 on the right side includes a rotating base 361 mounted on the top front side of the suction nozzle housing 31 and rotatable, a swing rod 362 with one end connected to the rotating base 361 and the other end extending first to the right and then tilted to the rear, a vision device 363 vertically inserted and fixed to the other end of the swing rod 362, and a swing drive device 364 with one end rotatably connected to the top of the suction nozzle housing 31 and the telescopic end rotatably connected to the rear of the rotating base 361. A limit spring 365 is connected between the other end of the swing rod 362 and the right front part of the rotating base 361. The swing drive device 364 is used to drive the rotating base 361 to rotate and drive the swing rod 362 to swing, so as to drive the vision device 363 to scan left and right to detect the position of waste in front of the suction nozzle housing 31. Specifically, the vision device 363 can be a smart camera, etc., and the swing drive device 364 can be a telescopic cylinder, thereby expanding the recognition range of the vision device 363 and improving its adaptability to avoid missing garbage on the road and achieve the position of garbage on the road in front of the suction nozzle mechanism 3 without blind spots, so as to ensure that the lateral drive device 4 can accurately drive the sliding frame to move laterally and drive the suction nozzle housing 31 to move laterally into place.

[0054] To improve the stability of the suction nozzle mechanism 3 during operation, several support frames 315 are fixedly mounted side-by-side on the front and rear tops of the suction nozzle housing 31. Support wheels 316 are rotatably mounted on the bottom of the ends of the support frames 315 away from the suction nozzle housing 31. When the support wheels 316 contact the ground, a gap is created between the bottom of the suction nozzle housing 31 and the ground. Thus, during the garbage collection operation of the two suction chambers 311, the suction nozzle can be supported and moved by the support wheels 316. Furthermore, the auxiliary support of the support wheels 316 reduces the tension on the lifting drive device 61 and the lifting frame 1, improving the overall stability of the lateral suction nozzle.

[0055] A control method for an adaptive lateral suction nozzle for a sweeper truck as described above includes the following steps:

[0056] S1, during the movement of the sweeper truck, the swing drive device 364 drives the rotating seat 361 to rotate and drive the swing arm 362 to swing, so that the vision device 363 scans left and right to detect the position of garbage in front of the suction nozzle housing 31. When the garbage position is detected to be on the side of the curb, the lateral drive device 4 drives the sliding frame 2 to move laterally according to the detection feedback of the vision device 363 until the suction nozzle housing 31 corresponds to the rear of the garbage and stops. The two opening and closing devices 35 open, and the two suction chambers 311 start negative pressure suction operation. Thus, when the garbage is piled up on the side of the curb, the sliding frame 2 drives the suction nozzle housing 31 to move laterally to the rear of the garbage, so that the suction chambers 311 can pick up the garbage close to the edge and avoid the garbage remaining on the road surface.

[0057] S2, during the negative pressure suction operation of the two suction chambers 311, the amount of debris detected by the left detection device 312 and the right detection device 313 in the two suction chambers 311 is compared; when the amount of debris on one side is large, the drive device 32 drives the partition 33 to slowly move towards the side with large debris, so as to reduce the space of the suction chamber 311 on the side with large debris, and the movement of the partition 33 gathers the debris in the suction chamber 311 on the side with large debris, reduces the ineffective airflow at the top of the suction chamber 311 on the side with large debris, increases the suction power of the suction chamber 311 on the side with large debris, and quickly picks up the debris; when all the debris is in When one side is in use, the opening and closing device 35 on the non-garbage side closes the connecting component 34 on the non-garbage side to stop the negative pressure suction operation of the suction chamber 311 on the non-garbage side. At the same time, the adjusting drive device 32 drives the partition 33 to slowly move towards the garbage side, so that the garbage on the garbage side is gathered by the movement of the partition 33, and the ineffective airflow at the top of the suction chamber 311 on the garbage side is reduced, and the suction force of the suction chamber 311 on the garbage side is increased to quickly pick up the garbage; thereby improving the efficiency of road garbage cleaning, while avoiding the generation of useless work, reducing the driving power of the suction device, avoiding power waste, and saving energy and protecting the environment;

[0058] S3, after the suction chamber 311 finishes collecting garbage, the opening and closing device 35 closes the corresponding connecting component 34 to stop the negative pressure suction operation of the two suction chambers 311. The lateral drive device 4 drives the sliding frame 2 to reset, the swing drive device 364 drives the vision device 363 to reset, and the lifting drive device 61 drives the lifting frame 1 to rise so that the suction nozzle mechanism 3 can rise and be stored at the bottom of the sweeper. The sweeper operation is completed.

[0059] To improve the stability of the suction nozzle mechanism 3 during operation, the lateral movement drive device 4 in step S1 drives the sliding frame 2 to move laterally based on the detection feedback from the vision device 363 until the suction nozzle housing 31 is directly behind the garbage. Specifically, this includes: the lateral movement drive device 4 drives the sliding frame 2 to move laterally based on the detection feedback from the vision device 363 until the suction nozzle housing 31 is directly behind the garbage, or until the sensing device 314 detects the curb. Simultaneously, the swing drive device 364 drives the swing arm 362 to swing the vision device 363 inward. This, through the setting of the sensing device 314, prevents the suction nozzle housing 31 from colliding with the curb and being damaged during lateral movement, and also prevents the vision device 363 from colliding with the curb and being damaged, thus improving the stability of the suction nozzle mechanism 3 during operation and extending its service life.

[0060] Example 2

[0061] Reference Figure 10As shown, the difference between this embodiment and Embodiment 1 is that the partition 33 is initially located in the middle. The middle portion of the front and rear inner walls of the suction nozzle housing 31 is symmetrically provided with several horizontally arranged first sliding grooves 317 and several second sliding grooves 318. The first sliding grooves 317 and second sliding grooves 318 on the same side are arranged alternately vertically. The first sliding groove 317 extends horizontally from left to right to the right side of the partition 33, then extends downward in an arc shape, then horizontally to the right end of the lead screw, and then arcs upward. The second sliding groove 318 extends horizontally from right to left to the left side of the partition 33, then extends downward in an arc shape, then horizontally to the left end of the lead screw, and then arcs upward. The left and right sides of the partition 33 are respectively provided with a left sweeping plate 331 and a right sweeping plate 332 that slide vertically up and down. Specifically, the opposite surfaces of the partition 33 and the left sweeping plate 331 are respectively provided with a vertically arranged left slide rail and a left sliding seat that slides vertically on the left slide rail. The opposite surfaces of the partition 33 and the right sweeping plate 332... Each has a vertically arranged right slide rail and a right slide block that slides vertically onto the right slide rail. The left sweeping plate 331 and the right sweeping plate 332 are respectively provided with a plurality of first rollers 3311 and a plurality of second rollers 3321 rotatably mounted on their front and rear sides. The plurality of first rollers 3311 and second rollers 3321 are respectively slidably disposed within a plurality of first grooves 317 and a plurality of second grooves 318. Specifically, in this embodiment, the first grooves 317 and second grooves 318 on the same side... 8. The number of the first roller 3311 and the second roller 3321 is set to two. The lower part of the left sweeping plate 331 and the right sweeping plate 332 is respectively set as a flexible left scraping part 3312 and a right scraping part 3322. Specifically, the left scraping part 3312 and the right scraping part 3322 can be set as a brush or made of flexible silicone material. In other embodiments, the left scraping part 3312 and the right scraping part 3322 can be set as a shovel shape with the lower end inclined downward in opposite directions.

[0062] With the above-described structure, during the process of the adjustment drive device 32 driving the partition 33 to slowly move towards the side with a large amount of garbage or the side with garbage, the left sweeping plate 331 and the right sweeping plate 332 can move laterally under the guidance of the first slide groove 317 and the second slide groove 318, respectively. When the amount of garbage on the left is large, the left sweeping plate 331 moves to the left and slides down until the left scraping part 3312 contacts the ground to scrape the garbage, while the right sweeping plate 332 maintains its original height. The partition 33 moves to the left to increase the suction force of the left suction chamber 311. Similarly, when the amount of garbage on the right is large, the right sweeping plate 332 moves to the right and slides down until the right scraping part 3322 contacts the ground to scrape the garbage, while the left sweeping plate 331 maintains its original height. The partition 33 moves to the left to increase the suction force of the left suction chamber 311. Similarly, when the amount of garbage on the right is large, the right sweeping plate 332 moves to the right and slides down until the right scraping part 3322 contacts the ground to scrape the garbage. The sweeping plate 331 maintains its original height, and the partition plate 33 moves to the right to increase the suction force of the right suction chamber 311. In turn, the sweeping treatment of the left scraping part 3312 and the right scraping part 3322 improves the collection effect of garbage on the side with a large amount of garbage or the side with garbage, avoids garbage residue on the ground, and improves the ground cleaning effect of the sweeper. At the same time, under the guidance of the first sliding groove 317 and the second sliding groove 318 on both sides, the left sweeping plate 331 and the right sweeping plate 332 can limit the lateral movement of the partition plate 33 in the front-back direction and the up-down direction, prevent the partition plate 33 from deflecting during the lateral movement, and improve the stability of the lateral movement of the partition plate 33.

[0063] Step S2 specifically includes: during the negative pressure suction operation of the two suction chambers 311, comparing the amount of debris detected by the left detection device 312 and the right detection device 313 in the two suction chambers 311; if the comparison result shows that the amount of debris on one side is larger, the drive device 32 drives the partition 33 to slowly move towards the side with larger debris, and the left sweeping plate 331 and the right sweeping plate 332 move laterally under the guidance of the first slide groove 317 and the second slide groove 318, respectively, to reduce the space of the suction chamber 311 on the side with larger debris, and the movement of the partition 33 gathers the debris in the suction chamber 311 on the side with larger debris, and reduces the amount of debris in the suction chamber 311 on the side with larger debris. The ineffective airflow at the top increases the suction power of the suction chamber 311 on the side with a large amount of garbage, quickly picking up the garbage. Specifically, when the amount of garbage on the left is large, the left sweeping plate 331 moves to the left and slides down to the left scraping part 3312 to contact the ground and scrape the garbage, while the right sweeping plate 332 maintains its original height. The partition 33 moves to the left to increase the suction power of the left suction chamber 311. Similarly, when the amount of garbage on the right is large, the right sweeping plate 332 moves to the right and slides down to the right scraping part 3322 to contact the ground and scrape the garbage, while the left sweeping plate 331 maintains its original height. Thus, the scraping treatment by the left scraping part 3312 and the right scraping part 3322 improves the garbage collection effect on the side with a large amount of garbage, avoiding grounding. To improve the cleaning effect of the sweeper truck, the device 35 on the side without garbage closes the connecting component 34 on the side without garbage, thereby stopping the negative pressure suction operation of the suction chamber 311 on the side without garbage. At the same time, the drive device 32 drives the partition 33 to slowly move towards the side with garbage, so that the garbage on the side with garbage is gathered by the movement of the partition 33, and the ineffective airflow at the top of the suction chamber 311 on the side with garbage is reduced, thereby increasing the suction force of the suction chamber 311 on the side with garbage and quickly picking up the garbage. This improves the efficiency of road garbage cleaning, avoids wasted work, and reduces the burden on the suction device. Driven by high power, avoiding power waste, and being energy-saving and environmentally friendly, when all the garbage is on the left side, the left sweeping plate 331 moves to the left and slides down to the left scraping part 3312 to contact the ground and scrape the garbage, while the right sweeping plate 332 maintains its original height. The partition plate 33 moves to the left to increase the suction force of the left suction chamber 311. Similarly, when all the garbage is on the right side, the right sweeping plate 332 moves to the right and slides down to the right scraping part 3322 to contact the ground and scrape the garbage, while the left sweeping plate 331 maintains its original height. Thus, the scraping treatment of the left scraping part 3312 and the right scraping part 3322 improves the garbage collection effect on the side with garbage, avoids garbage residue on the ground, and improves the ground cleaning effect of the sweeper.

[0064] It should be noted that for any points not mentioned in this embodiment, please refer to the corresponding content in Embodiment 1.

[0065] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. An adaptive lateral movement suction nozzle for a sweeper truck, characterized in that, include: The lifting frame (1) is installed on the corresponding underside of the vehicle body; The sliding frame (2) is laterally slidably connected to the lifting frame (1) and is driven to move left and right by the lateral movement drive device (4); The suction nozzle mechanism (3) includes a suction nozzle housing (31) with its top connected to the sliding frame (2) and its bottom open, and a partition (33) that is driven laterally by an adjustment drive device (32) and is disposed inside the suction nozzle housing (31). The partition (33) divides the inner cavity of the suction nozzle housing (31) into two suction chambers (311) on the left and right sides. The two suction chambers (311) are respectively connected to the garbage bin (5) of the vehicle body and the suction device through a connecting component (34). The connecting component (34) is provided with an opening and closing device (35). The front of the suction nozzle housing (31) is provided with a garbage identification device (35) for detecting the garbage position. 6) The two suction chambers (311) are equipped with a number of left detection devices (312) and a number of right detection devices (313) for detecting the amount of garbage in the two suction chambers (311). The lateral movement drive device (4) drives the sliding frame (2) to move laterally to the suction nozzle housing (31) to correspond with the garbage in front, based on the detection feedback of the garbage identification device (36). The adjustment drive device (32) drives the partition (33) to move towards the side with a larger amount of garbage, based on the comparison result of the amount of garbage in the two suction chambers (311) detected by the left detection device (312) and the right detection device (313). Both of the aforementioned connecting components (34) include a suction cylinder (341) located at the top of the suction nozzle housing (31) and connected to the corresponding suction cavity (311), and a suction pipe (342) connecting the suction cylinder (341) and the trash can (5). The suction cylinders (341) of the two connecting components (34) are symmetrically arranged side by side on the rear side of the top of the suction nozzle housing (31). The inner diameter of the suction cylinder (341) is smaller at the top and larger at the bottom. The left detection device (312) and the right detection device (313) are symmetrically arranged side by side on the front part of the side wall of the two suction cavities (311) on the far side. The left and right outer walls of the suction nozzle housing (31) are symmetrically provided with sensing devices (314) for sensing the curb.

2. The adaptive lateral movement suction nozzle for a sweeper truck as described in claim 1, characterized in that, The adjustment drive device (32) is provided in two parts and is respectively arranged horizontally on the top of the front and rear inner walls of the nozzle housing (31). The adjustment drive device (32) includes a drive motor (321) and a lead screw (322) connected to the output end of the drive motor (321). The two lead screws (322) pass through and connect to the upper part of the partition (33).

3. The adaptive lateral movement suction nozzle for a sweeper truck as described in claim 1, characterized in that, The lifting frame (1) includes a guide frame (11) arranged horizontally. The front and rear parts of the guide frame (11) are provided with slide rail square tubes (111), and the left and right parts are provided with connecting square tubes (112) connecting the two slide rail square tubes (111). The sliding frame (2) is located inside the guide frame (11). The sliding frame (2) includes two angle steels (21) arranged symmetrically front and rear with opposite openings, several cylinder fixing plates (22) fixedly mounted between the tops of the two angle steels (21), several connecting seats (23) installed on the top of the suction nozzle housing (31), and detachable symmetrically arranged on the front and rear sides of the connecting seats (23) with openings. The opposite corner plates (24) are provided with an upper slider (211) and a side slider (212) detachably connected to the top and opposite sides of the two slide rail square tubes (111) on the open side of the two angle steels (21). The top of the corner plates (24) is provided with a lower slider (241) detachably connected to the bottom of the two slide rail square tubes (111). The transverse drive device (4) is a sliding cylinder. The cylinder of the sliding cylinder is detachably provided at the bottom of the cylinder fixing plate (22). The left and right extension ends of the sliding cylinder are rotatably connected to the opposite sides of the two connecting square tubes (112).

4. The adaptive lateral movement suction nozzle for a sweeper truck as described in claim 3, characterized in that, The corner plate (24) has several vertically extending oval adjustment holes (242) on the side near the connecting seat (23). The corner plate (24) is locked to the connecting seat (23) after passing through the adjustment holes (242) with screws. The distance between the upper slider (211) and the lower slider (241) can be adjusted by the screws and the adjustment holes (242).

5. The adaptive lateral movement suction nozzle for a sweeper truck as described in claim 3, characterized in that, The lifting frame (1) also includes several connecting frames (12) mounted on the top of the guide frame (11) and connected to the front and rear ends of the two slide rail square tubes (111). The front of the slide rail square tube (111) is provided with two connecting ear plates (13). The vehicle body includes a sub-frame (6) and a chassis beam (7) located at the bottom of the sub-frame (6). Several lifting drive devices (61) with their lower ends connected to the connecting frames (12) by chains are rotatably provided on the sub-frame (6). The left and right sides of the chassis beam (7) are respectively provided with limiting frames (71) extending downward to the front of the lifting frame (1). Two limiting rods (72) are rotatably connected between the two limiting frames (71) and the two connecting ear plates (13).

6. The adaptive lateral movement suction nozzle for a sweeper truck as described in claim 1, characterized in that, The waste identification device (36) is provided in two symmetrically arranged on the left and right sides of the suction nozzle housing (31). The waste identification device (36) on the right side includes a rotating base (361) mounted on the top front side of the suction nozzle housing (31) and rotatable, a swing rod (362) with one end connected to the rotating base (361) and the other end extending first to the right and then tilted to the rear, a vision device (363) vertically inserted and fixed to the other end of the swing rod (362), and one end connected to the suction nozzle housing. (31) A swing drive device (364) is rotatably connected at the top and rotatably connected at the rear of the rotating seat (361). A limit spring (365) is connected between the other end of the swing rod (362) and the right front part of the rotating seat (361). The swing drive device (364) is used to drive the rotating seat (361) to rotate and drive the swing rod (362) to swing, so as to drive the vision device (363) to scan left and right to detect the position of the garbage in front of the suction nozzle housing (31).

7. The adaptive lateral movement suction nozzle for a sweeper truck as described in claim 1, characterized in that, The front and rear top of the suction nozzle housing (31) are respectively fixed with several support frames (315) arranged side by side. The bottom of the several support frames (315) away from the suction nozzle housing (31) is respectively provided with support wheels (316). When the several support wheels (316) contact the ground, the bottom of the suction nozzle housing (31) is separated from the ground.

8. A control method for an adaptive lateral suction nozzle for a sweeper truck as described in any one of claims 1-7, characterized in that, Includes the following steps: S1, during the movement of the sweeper, the swing drive device (364) drives the rotating seat (361) to rotate and drive the swing arm (362) to swing so that the vision device (363) scans left and right to detect the position of the garbage in front of the suction nozzle housing (31). When the garbage is detected to be on the side of the curb, the lateral drive device (4) drives the sliding frame (2) to move laterally according to the detection feedback of the vision device (363) until the suction nozzle housing (31) is directly behind the garbage and stops. The two opening and closing devices (35) open and the two suction chambers (311) start negative pressure suction operation. S2, During the negative pressure suction operation of the two suction chambers (311), the amount of garbage in the two suction chambers (311) detected by the left detection device (312) and the right detection device (313) is compared. When the amount of garbage on one side is large, the drive device (32) drives the partition (33) to move slowly towards the side with a large amount of garbage, so as to reduce the space of the suction chamber (311) on the side with a large amount of garbage and gather the garbage in the suction chamber (311) on the side with a large amount of garbage. S3, after the suction chamber (311) finishes collecting garbage, the opening and closing device (35) closes the corresponding connecting component (34) to stop the negative pressure suction operation of the two suction chambers (311), the horizontal movement drive device (4) drives the sliding frame (2) to reset, the swing drive device (364) drives the vision device (363) to reset, the lifting drive device (61) drives the lifting frame (1) to rise so that the suction nozzle mechanism (3) can rise and be stored at the bottom of the sweeper, and the sweeper operation is completed.

9. The control method for an adaptive lateral suction nozzle for a sweeper truck as described in claim 8, characterized in that, Step S2 also includes: When all the garbage is on one side, the opening and closing device (35) on the garbage-free side closes the connecting component (34) on the garbage-free side to stop the negative pressure suction operation of the suction chamber (311) on the garbage-free side.

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