Sweeper swing and sucker transverse movement matching structure and matching method of motor sweeper

Abstract

The invention belongs to the technical field of sanitation vehicle sweeping operation devices, and particularly relates to a sweeper swing and suction cup transverse movement matching structure which comprises sweeper swing mechanisms arranged on the two sides of the front portion of a chassis and a transverse movement type suction cup mechanism arranged on the rear portion of the chassis. The transverse moving type suction cup mechanism is provided with a suction cup body transversely moving in the width direction of the chassis. A limiting structure for limiting the swing angle of the sweeper is arranged on the sweeper swing mechanism, so that the swing amplitude of the sweeper limited by the limiting structure is matched with the moving distance of the suction cup body, and compared with the prior art, the limiting structure limits the swing amplitude of the sweeper to be matched with the moving distance of the suction cup.

Description

Technical Field

[0001] This invention belongs to the technical field of sanitation vehicle cleaning operation devices, specifically relating to a structure and method for cooperating the oscillation of the sweeping brush and the lateral movement of the suction cup of a sweeper. Background Technology

[0002] Sweepers are the most widely applicable sanitation vehicles. Existing products primarily use suction cups mounted on the vehicle's underside to collect road debris using negative pressure. These suction cups are supported by casters and move forward with the vehicle, but cannot move laterally. The sweeper's operating width and efficiency are closely related to the suction cup's width, which is limited by regulations to a width that cannot exceed the vehicle's width. Current technology only allows sweeper suction cups to collect debris from the underside of the vehicle. However, in actual road conditions, there is often more debris near the curb, and users are more concerned with collecting debris on the outer edge of the vehicle. Currently, the vehicle cannot reach the edge, and the suction cup structure cannot reach it, resulting in missed debris and severely impacting the sweeper's operating efficiency and cleaning effectiveness.

[0003] An invention patent with publication number CN117702666A provides an adaptive lateral movement suction nozzle for a sweeper and its control method. The front of the suction nozzle housing is provided with a garbage identification device for detecting the position of garbage. 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.

[0004] Existing brushes generally work in conjunction with fixed suction cups. The correspondence between the brush position and the suction cup position is designed before production. However, for lateral suction cups, although the brush itself has an outward swing function, it cannot match the outward swing amplitude with the suction cup displacement distance. Therefore, this needs to be improved. Summary of the Invention

[0005] To address the problem that the outward swing of the sweeping brush cannot coordinate with the movement of the lateral suction cup, this invention provides a structure and method for coordinating the sweeping brush swing and the lateral movement of the suction cup in a sweeper.

[0006] The objective of this invention is achieved in the following manner: a sweeper brush swinging and suction cup lateral movement cooperation structure, comprising a sweeper brush swinging mechanism 1 disposed on both sides of the front part of the vehicle chassis, and a lateral movement suction cup mechanism 2 disposed at the rear part of the vehicle chassis, wherein the lateral movement suction cup mechanism 2 is provided with a suction cup body 24 that moves laterally along the width direction of the vehicle chassis; the sweeper brush swinging mechanism 1 is provided with a limiting structure that limits the swinging angle of the sweeper brush, so that the swinging amplitude of the sweeper brush is limited by the limiting structure to match the moving distance of the suction cup body 24.

[0007] Furthermore, the sweeping brush swing mechanism 1 includes a sweeping brush fixing bracket 11 for fixing to the vehicle. A sweeping brush outward swing mechanism 12 is rotatably connected to the sweeping brush fixing bracket 11. A sweeping brush 16 is provided on the sweeping brush outward swing mechanism 12. The sweeping brush fixing bracket 11 is provided with at least two limiting structures. The limiting structures are used to cooperate with the sweeping brush outward swing mechanism 12 to limit the swing angle. Among the at least two limiting structures, at most one limiting structure is a static limiting structure, which is fixedly connected to the sweeping brush fixing bracket 11. The remaining limiting structures are dynamic limiting structures. Each dynamic limiting structure adjusts its posture through a driving mechanism, so that the dynamic limiting structure plays a role in limiting or avoiding the sweeping brush outward swing mechanism 12.

[0008] Furthermore, the static limiting structure includes a static limiting block 112 fixedly connected to the brush fixing bracket 11, and a large-angle limiting rod 1212 that cooperates with the static limiting block 112 fixedly connected to the brush swing mechanism 12; the dynamic limiting structure includes a dynamic limiting block 113, and a small-angle limiting rod 1213 that cooperates with the dynamic limiting block 113 fixedly connected to the brush swing mechanism 12. The dynamic limiting block 113 can block or avoid the movement trajectory of the small-angle limiting rod 1213 by adjusting its posture; when the large-angle limiting rod 1212 abuts against the static limiting block 112, the brush swing mechanism 12 swings out at an angle of θ1; when the small-angle limiting rod 1213 abuts against the dynamic limiting block 113, the brush swing mechanism 12 swings out at an angle of θ2, where θ1>θ2.

[0009] Furthermore, a hinge seat is fixedly connected to the brush fixing bracket 11, and the hinge seat is hinged to a dynamic limiting block 113. One end of the dynamic limiting block 113 is hinged to the output end of the limiting cylinder, and the cylinder seat of the limiting cylinder is hinged to the brush fixing bracket 11. The other end of the dynamic limiting block 113 is used to cooperate with the small-angle limiting rod 1213. Both the large-angle limiting rod 1212 and the small-angle limiting rod 1213 are screw rods, and each screw rod is threaded with two locking nuts, which are located on both sides of the brush swing mechanism 12.

[0010] Furthermore, the external swing mechanism 12 of the sweeping brush includes a rotary seat 121, which is rotatably connected to a rotating shaft. The rotating shaft is fixed to the sweeping brush fixing bracket 11. One end of the sweeping brush swing arm 122 is hinged to the side of the rotary seat 121, and the other end of the sweeping brush swing arm 122 is hinged to the sweeping disc fixing seat 123. One end of the adjusting push rod 124 is also hinged to the side of the rotary seat 121, and the other end of the adjusting push rod 124 is hinged to the sweeping disc fixing seat 123, so that the rotary seat 121, the sweeping brush swing arm 122, the adjusting push rod 124, and the sweeping disc fixing seat 123 form a quadrilateral mechanism. The sweeping brush 16 is provided at the bottom of the sweeping disc fixing seat 123. A rotation drive push rod is provided between the sweeping brush fixing bracket 11 and the sweeping brush swing arm 122. A brush swing spring 13 is provided between the brush fixing bracket 11 and the rotary seat 121. The brush swing spring 13 is provided with a preload and provides the force for the brush swing mechanism 12 to swing outward. A chain 15 and a brush lifting spring 14 are sequentially provided between the brush fixing bracket 11 and the brush swing arm 122.

[0011] Furthermore, the transverse suction cup mechanism 2 includes a lever lifting support 21 that is lifted and connected to the chassis of the vehicle, and the bottom of the lever lifting support 21 is slidably connected to the suction cup body 24 through a transverse guide bracket 22.

[0012] Furthermore, the pull rod lifting support 21 includes a lifting bracket 212, which is hinged to one end of the pull rod 211 and the other end of the pull rod 211 is hinged to the vehicle chassis. The lifting bracket 212 is connected to the lifting drive component at the bottom of the vehicle through a lifting lug 213. The transverse guide bracket 22 includes an optical axis sliding sleeve 221 fixedly connected to the bottom of the lifting bracket 212, an optical axis rod 222 slidably connected inside the optical axis sliding sleeve 221, and a suction cup body 24 fixedly connected to both ends of the optical axis rod 222, which is used to guide the suction cup body 24 when it moves laterally relative to the pull rod lifting support 21. The lifting bracket 212 is fixedly connected to the fixed mounting hinge 214, and the suction cup body 24 is fixedly connected to the transverse mounting hinge 248. The fixed mounting hinge 214 is hinged to one end of the double-headed drive cylinder 23, and the other end of the double-headed drive cylinder 23 is hinged to the transverse mounting hinge 248.

[0013] Furthermore, the suction cup body 24 is fixedly connected to the suction cup cavity 241 at the bottom. The suction cup cavity 241 is provided with a suction pipe on the top plate, which is connected to the garbage bin of the sweeper. A central spray structure 44 is provided at the rear end of the suction cup body 24. An adjustable side spray structure 42 is provided on both sides of the suction cup body 24. The side spray structure 42 and the central spray structure 44 are equipped with fan-shaped nozzles to achieve ground cleaning using high-pressure water. A water mist baffle 43 is provided in front of the output end of the side spray structure 42. The water mist baffle 43 is used to block the water mist generated by the side spray structure 42 when cleaning the ground. A universal caster 46 is provided at the bottom of the suction cup body 24.

[0014] A method for cooperating the above-mentioned sweeper brush oscillation and suction cup lateral movement structure, the method comprising: make △L=(d / 2+△d)-[b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ1)-R] △L=(d / 2-△d)-[b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ2)-R] Wherein, d is the width of the suction cup body 24, △d is the lateral movement of the suction cup body 24 in the working state, b is the distance between the center of the sweeping disk of the sweeping brush 16 and the central axis of the vehicle in the retracted state, a is the length of the sweeping brush arm 122, α is the angle between the sweeping brush arm 122 and the vertical direction in the working state, θ0 is the angle between the sweeping brush arm 122 and the width direction of the vehicle in the retracted state, θ1 is the large angle swing angle of the sweeping brush 16, θ2 is the small angle swing angle of the sweeping brush, △L is the overlap between the brush bristles of the sweeping brush 16 and the suction cup body 24, △L≥50mm; Based on the formula and the value of △L, the first set of range values ​​of θ1 and θ2 are calculated. The specific values ​​that satisfy the first set of range values ​​of θ1 and θ2 are selected, and the extension amount of the large angle limit rod 1212 and the small angle limit rod 1213 are adjusted.

[0015] Furthermore, the method also includes: make (d / 2+△d)+L2≥b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ1)+R (d / 2-△d)+L2≥b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ2)+R L2 is the distance between the side of the suction cup body 24 and the farthest end of the water curtain of the side spray structure 242 in the vehicle width direction. Based on the formula, the second set of range values ​​for θ1 and θ2 are calculated. Specific values ​​that simultaneously satisfy the first and second set of range values ​​for θ1 and θ2 are selected, and the extension amount of the large-angle limit rod 1212 and the small-angle limit rod 1213 is adjusted.

[0016] Compared to existing technologies, this invention uses a limiting structure to match the swing amplitude of the brush with the moving distance of the suction cup. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the relative positional relationship between the oscillating brush mechanism and the transverse suction cup; Figure 2 This is a schematic diagram of the sweeping brush swing mechanism; Figure 3 This is a schematic diagram of the rotary seat structure; Figure 4 This is a structural diagram of the brush mounting bracket; Figure 5 This is a schematic diagram showing the relative relationship between the lateral movement distance of the suction cup and the oscillation angle of the brush. Figure 6 This is a schematic diagram of the vertical swinging structure of the sweeping brush; Figure 7This is a schematic diagram of the structure of a horizontally moving suction cup; Figure 8 This is a structural schematic diagram of the tie rod lifting bracket; Figure 9 This is a schematic diagram of the transverse guide support structure; Figure 10 This is a schematic diagram of the suction cup body. Figure 11 This is a schematic diagram of the three main positions of the horizontally moving suction cup.

[0018] in: Sweeping brush swing mechanism 1 Sweeping brush fixing bracket 11, reset limit block 111, static limit block 112, dynamic limit block 113. Sweeping brush swing mechanism 12, rotary seat 121, reset limit rod 1211, large angle limit rod 1212, small angle limit rod 1213, sweeping brush swing arm 122, sweeping disc fixing seat 123, adjusting push rod 124. 13. Sweeping brush swing spring; 14. Sweeping brush lifting spring; 15. Chain; 16. Sweeping brush 2. Horizontal suction cup mechanism 21. Tie rod lifting support; 211. Tie rod; 212. Lifting bracket; 213. Lifting lug; 214. Fixed mounting hinge. Horizontal guide bracket 22, optical axis sliding sleeve 221, optical axis rod 222 Dual-head drive hydraulic cylinder 23 Suction cup body 24, suction cup cavity 241, side spray structure 242, water mist baffle 234, center spray structure 244, caster bracket 245, swivel caster 246, optical axis mounting plate 247, transverse sliding mounting hinge 248. Detailed Implementation

[0019] 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.

[0020] In this invention, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0021] As attached Figure 1-5 As shown, a sweeper brush swinging and suction cup lateral movement cooperation structure includes a sweeper brush swinging mechanism 1 disposed on both sides of the front part of the vehicle chassis, and a lateral movement suction cup mechanism 2 disposed at the rear part of the vehicle chassis. The lateral movement suction cup mechanism 2 is provided with a suction cup body 24 that moves laterally along the width direction of the vehicle chassis. The sweeper brush swinging mechanism 1 is provided with a limiting structure to limit the swinging angle of the sweeper, so that the swinging amplitude of the sweeper is limited by the limiting structure to match the moving distance of the suction cup body 24.

[0022] A sweeper brush swing mechanism 1 includes a sweeper brush fixing bracket 11 for fixing to the vehicle. A sweeper brush swing mechanism 12 is rotatably connected to the sweeper brush fixing bracket 11. A sweeper brush 16 is provided on the sweeper brush swing mechanism 12. The sweeper brush fixing bracket 11 is provided with at least two limiting structures, or more than two. Each limiting structure corresponds to limiting a fixed swing angle. The limiting structures are used to cooperate with the sweeper brush swing mechanism 12 to limit the swing angle. Among the at least two limiting structures, at most one limiting structure is a static limiting structure, which generally corresponds to the maximum value of the swing angle. The static limiting structure is fixedly connected to the sweeper brush fixing bracket 11. The remaining limiting structures are dynamic limiting structures. Each dynamic limiting structure adjusts its posture through a driving mechanism, so that the dynamic limiting structure plays a role in limiting or avoiding the sweeper brush swing mechanism 12. That is, the dynamic limiting structure selectively stops the sweeper brush swing mechanism 12 at a relatively small swing value before reaching the maximum value of the swing angle.

[0023] The above structure can be set in the existing brushing mechanism. The number and limit value of the limiting structure can be determined according to actual needs, but preferably, the following scheme is adopted.

[0024] Further details are attached. Figure 2-4As shown, the static limiting structure includes a static limiting block 112 fixedly connected to the brush fixing bracket 11. The static limiting block 112 is a welded metal plate. A large-angle limiting rod 1212 that abuts against the static limiting block 112 is fixedly connected to the brush swing mechanism 12. The dynamic limiting structure includes a dynamic limiting block 113. A small-angle limiting rod 1213 that abuts against the dynamic limiting block 113 is fixedly connected to the brush swing mechanism 12. The dynamic limiting block 113 can block or avoid the movement trajectory of the small-angle limiting rod 1213 by adjusting its posture. When the large-angle limiting rod 1212 abuts against the static limiting block 112... When the sweeping brush swing mechanism 12 swings out at an angle of θ1, and when the small angle limit rod 1213 abuts against the dynamic limit block 113, the sweeping brush swing mechanism 12 swings out at an angle of θ2, θ1>θ2. The figure shows the most basic scheme, which sets only one set of dynamic limit structure. When there are two or more sets of dynamic limit structure, multiple sets of cooperating small angle limit rods 1213 and independently driven dynamic limit blocks 113 are set accordingly, forming θ3, θ4, θ5... and following θ1>θ2>θ3>θ4>θ5..., so that multiple angle limits are formed to adapt to the different lateral movement of the transverse suction cup mechanism 2.

[0025] This invention mainly discusses the two extreme positions of "dynamic limiting block 113 and small angle limiting rod 1213" and "static limiting block 112 and large angle limiting rod 1212" in the above description, and the angle settings of other sets of dynamic limiting structures are derived from this.

[0026] In addition to the aforementioned static and dynamic limiting structures, a reset limiting structure can be further added, as shown in the attached diagram. Figure 3-4 The reset limiting structure includes a reset limiting block 111 fixedly connected to the brush fixing bracket 11. The reset limiting block 111 is also a welded metal plate. The brush swing mechanism 12 is fixedly connected to a reset limiting rod 1211 that cooperates with the reset limiting block 111. The static limiting structure and the reset limiting structure respectively limit the two extreme positions of the swing of the brush swing mechanism 12.

[0027] Furthermore, a hinge seat is fixedly connected to the brush fixing bracket 11, and the hinge seat is hinged to a dynamic limiting block 113. One end of the dynamic limiting block 113 is hinged to the output end of the limiting cylinder, and the cylinder seat of the limiting cylinder is hinged to the brush fixing bracket 11. The other end of the dynamic limiting block 113 is used to block or avoid the small-angle limiting rod 1213.

[0028] Furthermore, the large-angle limiting rod 1212, the small-angle limiting rod 1213, and the reset limiting rod 1211 are all screw rods, and each screw rod is threaded with two locking nuts. The two locking nuts are located on both sides of a plate-like structure on the brush swing mechanism 12. By loosening the locking nuts, the extension amount of the screw rod can be adjusted, thereby adjusting the values ​​of θ1, θ2, θ3, θ4, θ5...

[0029] Furthermore, the sweeping brush swing mechanism 12 includes a rotary seat 121, which is rotatably connected to a rotating shaft. The rotating shaft is fixed to the sweeping brush fixing bracket 11. One end of the sweeping brush swing arm 122 is hinged to the side of the rotary seat 121, and the other end of the sweeping brush swing arm 122 is hinged to the sweeping disc fixing seat 123. One end of the adjusting push rod 124 is also hinged to the side of the rotary seat 121, and the other end of the adjusting push rod 124 is hinged to the sweeping disc fixing seat 123. The adjusting push rod 124 is generally a cylinder, so that the rotary seat 121, the sweeping brush swing arm 122, the adjusting push rod 124, and the sweeping disc fixing seat 123 form a quadrilateral mechanism. The sweeping brush 16 is provided at the bottom of the sweeping disc fixing seat 123. A rotation drive push rod (which also serves as a lifting drive push rod, preferably with an oblique pull, is provided between the sweeping brush fixing bracket 11 and the sweeping brush swing arm 122 to drive the sweeping disc to rise and swing back, while the sweeping disc descends by its own weight) is provided between the sweeping brush fixing bracket 11 and the sweeping brush swing arm 122.

[0030] Furthermore, a brush swing spring 13 is provided between the brush fixing bracket 11 and the rotary seat 121. The brush swing spring 13 is provided with a preload and provides the force for the brush swing mechanism 12 to swing outward. A chain 15 and a brush lifting spring 14 are sequentially provided between the brush fixing bracket 11 and the brush swing arm 122. When the brush swing arm 122 descends under its own weight, the brush lifting spring 14 is stretched and the chain 15 is lengthened to adjust its descent height. The connection point between the brush lifting spring 14 and the chain 15 and the brush fixing bracket 11 is located on the rotation axis of the rotary seat 121, ensuring that the lifting and swinging actions of the brush swing arm 122 are adjusted by the brush lifting spring 19 and the brush swing spring 13 respectively, without interfering with each other.

[0031] Further details are attached. Figure 7-11 As shown, the transverse suction cup mechanism 2 includes a pull rod lifting support 21 that is lifted and connected to the chassis of the vehicle. The bottom of the pull rod lifting support 21 is slidably connected to the suction cup body 24 through a transverse guide bracket 22.

[0032] Furthermore, the pull rod lifting support 21 includes a lifting bracket 212, which is hinged to one end of the pull rod 211 and the other end of the pull rod 211 is hinged to the vehicle chassis. The lifting bracket 212 is connected to the lifting drive component at the bottom of the vehicle through the lifting lug 213. The lifting drive component is generally a hydraulic cylinder. The transverse guide bracket 22 includes an optical axis sliding sleeve 221 fixedly connected to the bottom of the lifting bracket 212, an optical axis rod 222 slidably connected inside the optical axis sliding sleeve 221, and two ends of the optical axis rod 222 are respectively fixedly connected to the suction cup body 24 through connecting seats, which is used to guide the suction cup body 24 when it moves laterally relative to the pull rod lifting support 21. The lifting bracket 212 is fixedly connected to the fixed mounting hinge 214, and the suction cup body 24 is fixedly connected to the transverse mounting hinge 248. The fixed mounting hinge 214 is hinged to one end of the double-headed drive cylinder 23, and the other end of the double-headed drive cylinder 23 is hinged to the transverse mounting hinge 248, so that the optimal position of the suction cup body 4 is in the middle, leftmost, and rightmost positions, or other intermediate positions.

[0033] Furthermore, the suction cup body 24 is fixedly connected to the suction cup cavity 241 at the bottom. The suction cup cavity 241 is provided with a suction pipe on the top plate, which is connected to the garbage bin of the sweeper. A central spray structure 44 is provided at the rear end of the suction cup body 24. An adjustable side spray structure 42 is provided on both sides of the suction cup body 24. The side spray structure 42 and the central spray structure 44 are equipped with fan-shaped nozzles to achieve ground cleaning using high-pressure water. A water mist baffle 43 is provided in front of the output end of the side spray structure 42. The water mist baffle 43 is used to block the water mist generated by the side spray structure 42 when cleaning the ground. A universal caster 46 is provided at the bottom of the suction cup body 24.

[0034] As attached Figure 5-6 As shown, when the suction cup body 24 moves laterally to one side, the vehicle controller controls the brush swing mechanism 12 to swing out at a large angle on one side and at a small angle on the other side, ensuring that the cleaning range of the brush 16 overlaps with the suction range of the suction cup body 24, so that the cleaning device can simultaneously shift to one side.

[0035] When the suction cup body 24 moves laterally to one side, the outward swing angle of the brush 16 to that side is large, while the outward swing angle of the brush 16 on the other side is small. θ1>θ2. Adjusting the limiting bolts ensures that the overlap between the cleaning position of the inner side of the brush 16 on both sides and the position of the side plate of the suction cup body 24 is △L, and △L is not less than the maximum wear of the brush bristles of the brush 16. At the same time, the width L2 of the water curtain of the side spray bar 242 of the suction cup body 24 is greater than the outermost width L1 of the brush 16; △d is the offset distance of the cleaning device.

[0036] Specifically, a method for cooperating the above-mentioned sweeper brush oscillation and suction cup lateral movement structure, the method comprising: refer to Figure 5 , 6 ,in: a - Length of the sweeping arm; α - The angle between the sweeper arm 122 and the vertical direction. This value is determined by the height of the vehicle chassis and the installation height of the sweeper. In actual use, due to the unevenness of the road surface, there will be a slight fluctuation, but it can be basically ignored. This value can be regarded as a constant. b - The distance between the center of the sweeping disc and the central axis oo' along the length of the vehicle when the sweeping brush is retracted; θ0 - Brush retracted state, brush arm angle (horizontal direction); θ1 - Large sweeping angle (horizontal direction) θ2 - Small angle of the sweeping brush (horizontal direction) R-Sweeping disk radius d - Width of the suction cup body △d - lateral displacement of the suction cup △L - Overlap between sweeping brush bristles and suction cup body The reason for introducing △L is that the basic fit is that the inner edge of the brush 16 and the outer edge of the suction cup body 24 are flush. However, considering the margin required for actual use, and the wear of the brush bristles in long-term use, △L needs to be considered to ensure the coverage of the working range of the brush 16. △L≥50mm, with a common value of 50~100mm. This value can be further increased according to the maximum wear of the brush bristles.

[0037] When the sweeping disc falls to the ground, the distance A'B between the center point of the sweeping disc and the swing center of the sweeping brush mechanism is... a*sin(α) When the sweeping mechanism swings outward by θ1, the distance between the center of the sweeping disc and the longitudinal axis oo' of the vehicle is... b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ1) When the sweeping mechanism swings outward by θ1, the distance between the inner edge of the sweeping brush bristles and the longitudinal axis oo' of the vehicle is... b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ1)-R When the sweeping mechanism swings outward by θ1, the suction cup moves laterally by Δd, and the distance between the suction cup main body side plate and the vehicle's longitudinal axis oo' is... d / 2+△d The sweeping mechanism swings outward by θ1, the suction cup moves laterally by Δd, and the overlap between the sweeping brush bristles and the side plate of the suction cup body is... △L=(d / 2+△d)-[b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ1)-R] △L=(d / 2-△d)-[b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ2)-R] △L is a range value greater than or equal to 50mm. Other values ​​are fixed values ​​after the vehicle is designed. The resulting θ1 and θ2 values ​​are also range values, forming the first set of range values. Select the specific values ​​that satisfy the first set of range values ​​of θ1 and θ2, and adjust the extension amount of the large angle limit rod 1212 and the small angle limit rod 1213.

[0038] The above methods can meet the most basic work requirements, but further improvements are also possible: make (d / 2+△d)+L2≥b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ1)+R (d / 2-△d)+L2≥b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ2)+R Wherein, L2 is the distance between the side of the suction cup body (24) and the farthest end of the water curtain of the side spray structure (242) in the vehicle width direction; According to the formula, the second set of range values ​​of θ1 and θ2 are calculated. Select specific values ​​that simultaneously satisfy the first and second set of range values ​​of θ1 and θ2. The combination of the first and second set of range values ​​is still a non-closed range value. This formula is only used to optimize the value range under special circumstances to prevent the brush 16 from exceeding the water curtain spray range and forming invalid work. According to the range value, adjust the extension amount of the large angle limit rod 1212 and the small angle limit rod 1213.

[0039] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A structure for coordinating the oscillation of a sweeper brush and the lateral movement of a suction cup, characterized in that: It includes a brush swing mechanism (1) set on both sides of the front of the vehicle chassis, and a transverse suction cup mechanism (2) set on the rear of the vehicle chassis. The transverse suction cup mechanism (2) is provided with a suction cup body (24) that moves laterally along the width direction of the vehicle chassis. The brush swing mechanism (1) is provided with a limiting structure that limits the swing angle of the brush, so that the swing amplitude of the brush is limited by the limiting structure and the moving distance of the suction cup body (24).

2. The sweeper brush oscillation and suction cup lateral movement cooperation structure as described in claim 1, characterized in that: The sweeping brush swing mechanism (1) includes a sweeping brush fixing bracket (11) for fixing to the vehicle. A sweeping brush swing mechanism (12) is rotatably connected to the sweeping brush fixing bracket (11). A sweeping brush (16) is provided on the sweeping brush swing mechanism (12). At least two limiting structures are provided on the sweeping brush fixing bracket (11). The limiting structures are used to cooperate with the sweeping brush swing mechanism (12) to limit the swing angle. Among the at least two limiting structures, at most one of the limiting structures is a static limiting structure. The static limiting structure is fixedly connected to the sweeping brush fixing bracket (11). The remaining limiting structures are dynamic limiting structures. Each dynamic limiting structure adjusts its posture through a driving mechanism so that the dynamic limiting structure can limit or avoid the sweeping brush swing mechanism (12).

3. The sweeper brush oscillation and suction cup lateral movement cooperation structure as described in claim 2, characterized in that: The static limiting structure includes a static limiting block (112) fixedly connected to the brush fixing bracket (11), and a large-angle limiting rod (1212) that cooperates with the static limiting block (112) fixedly connected to the brush swing mechanism (12); the dynamic limiting structure includes a dynamic limiting block (113), and a small-angle limiting rod (1213) that cooperates with the dynamic limiting block (113) fixedly connected to the brush swing mechanism (12); the dynamic limiting block (113) can block or avoid the movement trajectory of the small-angle limiting rod (1213) by adjusting its posture; when the large-angle limiting rod (1212) abuts against the static limiting block (112), the brush swing mechanism (12) swings out at an angle of θ1; when the small-angle limiting rod (1213) abuts against the dynamic limiting block (113), the brush swing mechanism (12) swings out at an angle of θ2, and θ1>θ2.

4. The sweeper brush oscillation and suction cup lateral movement cooperation structure as described in claim 3, characterized in that: The brush fixing bracket (11) is fixedly connected to a hinge seat, and the hinge seat is hinged to a dynamic limiting block (113). One end of the dynamic limiting block (113) is hinged to the output end of the limiting cylinder, and the cylinder seat of the limiting cylinder is hinged to the brush fixing bracket (11). The other end of the dynamic limiting block (113) is used to cooperate with the small angle limiting rod (1213). Both the large-angle limiting rod (1212) and the small-angle limiting rod (1213) are screw rods, and each screw rod is threaded with two locking nuts. The two locking nuts are located on both sides of the brush swing mechanism (12).

5. The sweeper brush oscillation and suction cup lateral movement cooperation structure as described in claim 2, characterized in that: The external swing mechanism (12) of the sweeping brush includes a rotary seat (121), which is rotatably connected to a rotating shaft. The rotating shaft is fixed to the sweeping brush fixing bracket (11). One end of the sweeping brush swing arm (122) is hinged to the side of the rotary seat (121), and the other end of the sweeping brush swing arm (122) is hinged to the sweeping disc fixing seat (123). One end of the adjusting push rod (124) is also hinged to the side of the rotary seat (121), and the other end of the adjusting push rod (124) is hinged to the sweeping disc fixing seat (123), so that the rotary seat (121), the sweeping brush swing arm (122), the adjusting push rod (124), and the sweeping disc fixing seat (123) form a quadrilateral mechanism. A sweeping brush (16) is provided at the bottom of the sweeping disc fixing seat (123). A rotation drive push rod is provided between the sweeping brush fixing bracket (11) and the sweeping brush swing arm (122). A brush swing spring (13) is provided between the brush fixing bracket (11) and the rotary seat (121). The brush swing spring (13) is provided with a preload and provides the force for the brush swing mechanism (12) to swing outward. A chain (15) and a brush lifting spring (14) are provided in sequence between the brush fixing bracket (11) and the brush swing arm (122).

6. The sweeper brush oscillation and suction cup lateral movement cooperation structure as described in claim 1, characterized in that: The transverse suction cup mechanism (2) includes a pull rod lifting support (21) that is lifted and connected to the chassis of the vehicle. The bottom of the pull rod lifting support (21) is slidably connected to the suction cup body (24) through a transverse guide bracket (22).

7. The sweeper brush oscillation and suction cup lateral movement cooperation structure as described in claim 6, characterized in that: The pull rod lifting support (21) includes a lifting bracket (212), which is hinged to one end of the pull rod (211), and the other end of the pull rod (211) is hinged to the vehicle chassis. The lifting bracket (212) is connected to the lifting drive component at the bottom of the vehicle through a lug (213). The transverse guide bracket (22) includes an optical axis sleeve (221) fixedly connected to the bottom of the lifting bracket (212), an optical axis rod (222) slidably connected inside the optical axis sleeve (221), and suction cup body (24) fixedly connected to both ends of the optical axis rod (222) for guiding the suction cup body (24) when it moves laterally relative to the pull rod lifting support (21); The lifting bracket (212) is fixedly connected to the fixed mounting hinge (214), and the suction cup body (24) is fixedly connected to the transverse mounting hinge (248). The fixed mounting hinge (214) is hinged to one end of the double-headed drive cylinder (23), and the other end of the double-headed drive cylinder (23) is hinged to the transverse mounting hinge (248).

8. The sweeper brush oscillation and suction cup lateral movement cooperation structure as described in claim 6, characterized in that: The suction cup body (24) is fixedly connected to the suction cup cavity (241) at the bottom. The suction cup cavity (241) is provided with a suction pipe connected to the garbage bin of the sweeper. The suction cup body (24) is provided with a central spray structure (44) at the rear end. The suction cup body (24) is provided with adjustable side spray structures (42) on both sides. The side spray structures (42) and the central spray structure (44) are equipped with fan-shaped nozzles so that the ground can be cleaned by high pressure water. A water mist baffle (43) is provided in front of the output end of the side spray structure (42). The water mist baffle (43) is used to block the water mist formed by the side spray structure (42) cleaning the ground. The suction cup body (24) is provided with universal casters (46) at the bottom.

9. A method for cooperating a sweeper brush oscillation and suction cup lateral movement structure as described in any one of claims 1-8, characterized in that, The method includes: make △L=(d / 2+△d)-[b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ1)-R] △L=(d / 2-△d)-[b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ2)-R] Wherein, d is the width of the suction cup body (24), △d is the lateral movement of the suction cup body (24) in the working state, b is the distance between the center of the sweeping brush (16) and the central axis of the vehicle in the retracted state, a is the length of the sweeping brush arm (122), α is the angle between the sweeping brush arm (122) and the vertical direction in the working state, θ0 is the angle between the sweeping brush arm (122) and the vehicle width direction in the retracted state, θ1 is the large angle of the sweeping brush (16), θ2 is the small angle of the sweeping brush, △L is the overlap between the brush bristles of the sweeping brush (16) and the suction cup body (24), and △L≥50mm; Based on the formula and the value of △L, the first set of range values ​​of θ1 and θ2 are calculated. The specific values ​​that satisfy the first set of range values ​​of θ1 and θ2 are selected, and the extension amount of the large angle limit rod (1212) and the small angle limit rod (1213) is adjusted.

10. The method of combination as claimed in claim 9, characterized in that, The method further includes: make (d / 2+△d)+L2≥b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ1)+R (d / 2-△d)+L2≥b+a*sin(α)*cos(θ0)+a*sin(α)*cos(π-θ0-θ2)+R Wherein, L2 is the distance between the side of the suction cup body (24) and the farthest end of the water curtain of the side spray structure (242) in the vehicle width direction; Based on the formula, the second set of range values ​​of θ1 and θ2 are calculated. The specific values ​​that simultaneously satisfy the first and second set of range values ​​of θ1 and θ2 are selected, and the extension amount of the large angle limit rod (1212) and the small angle limit rod (1213) is adjusted.

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