Grass collector and mowing system

Abstract

The utility model relates to the technical field of grass collecting equipment, and discloses a grass collector and a mowing system. The grass collector comprises an operation box, a connecting piece, a rolling brush assembly, a collecting box and a universal wheel assembly. The connecting piece comprises a first connecting part and a second connecting part, the connecting piece is fixedly connected with the traction equipment through the first connecting part so that the operation box can move along with the traction equipment, the second connecting part is located on the operation box, and the connecting piece is rotationally connected with the operation box through the second connecting part; the rolling brush assembly is rotationally arranged in the operation box and used for moving along with the operation box and sweeping sundries on the face to be cleaned. The collecting box is connected with the operation box and used for containing sundries on the face to be cleaned. The universal wheel assembly is arranged at the bottom of the operation box and used for bearing the operation box. In this way, when the grass collector works, the sensitivity that the operation box swings along with traction equipment can be improved, and the follow-up consistency of the rolling brush assembly and the universal wheel assembly is improved.

Description

Technical Field

[0001] This application relates to the field of grass collection equipment technology, specifically to a grass collector and a grass mowing system. Background Technology

[0002] In existing technologies, when self-propelled intelligent lawnmowers use a grass collector to collect grass clippings or fallen leaves and branches on the ground, the grass collector is generally mounted on the body of the lawnmower and connected to the body via a lifting mechanism. Users manually adjust the height of the grass collector according to the working surface to adjust the distance between the grass collector's roller and the ground. This structure is cumbersome to operate and cannot be automatically adjusted according to the working surface, resulting in either too small a distance between the roller and the ground, leading to excessive wear, or too large a distance, making it impossible to effectively brush up the material on the ground.

[0003] Of course, some self-propelled intelligent lawnmowers have wheels at the bottom of the grass collector's collection box, and a rotating structure connects the machine body and the grass collector, allowing the grass collector to swing relative to the machine body as the ground undulates. However, the wheels and the brush do not move in sync. Sometimes the wheels are positioned high, but the brush is too close to the ground, affecting rotation and causing excessive wear; other times the wheels are positioned low, but the brush is too far from the ground, failing to effectively pick up the grass. Utility Model Content

[0004] This application provides a grass collector and a mowing system that improves the sensitivity of the work box in following the swing of the traction device when the grass collector is working, and improves the follow-up consistency of the roller brush assembly and the caster wheel assembly.

[0005] This application provides a grass collector, including a working box, a connecting member, a roller brush assembly, a collection box, and a caster assembly. The connecting member includes a first connecting portion and a second connecting portion. The connecting member is fixedly connected to a traction device via the first connecting portion, allowing the working box to move with the traction device. The second connecting portion is located on the working box, and the connecting member is rotatably connected to the working box via the second connecting portion. The roller brush assembly is rotatably disposed within the working box, used to move with the working box and clean debris from the surface to be cleaned. The collection box is connected to the working box and used to hold debris from the surface to be cleaned. The caster assembly is disposed at the bottom of the working box to support the working box.

[0006] In this way, the connector can be fixedly installed on the traction equipment via the first connecting part and rotatably connected to the working box via the second connecting part. This allows the grass collector to move with the traction equipment on undulating cleaning surfaces. The working box and the connector can rotate at a certain angle according to the undulations of the surface to be cleaned. Simultaneously, the universal wheel assembly installed at the bottom of the working box enables the grass collector to swing in all directions with the traction equipment, allowing it to move relative to the traction equipment in the up, down, left, and right directions. The distance between the roller brush assembly and the surface to be cleaned is automatically adjusted according to the changes in undulations, greatly improving the flexibility of the grass collector while moving with the traction equipment and solving the problem of cumbersome operation caused by manually adjusting the lifting mechanism. Furthermore, by simultaneously mounting the second connecting part of the connector and the universal wheel assembly on the work box, the distance between the rotational position of the work box and the connector and the vertical projection of the universal wheel assembly can be reduced, improving the sensitivity of the work box in following the swing adjustment of the traction equipment. The surface to be cleaned, where the roller brush assembly and the universal wheel assembly are located, should be kept as consistent as possible. The roller brush assembly can promptly follow the universal wheel assembly in swinging according to the undulations of the surface to be cleaned, ensuring high consistency in movement between the two on the surface to be cleaned. This prevents excessive wear of the roller brush assembly or inability to effectively pick up materials from the surface to be cleaned due to large differences in the undulations of the roller brush assembly and the universal wheel assembly on the surface to be cleaned.

[0007] In one embodiment of this application, the orthographic projection of the second connecting portion in the vertical direction is located within the orthographic projection of the work box in the vertical direction.

[0008] By using the above methods, the distance between the rotating parts of the work box and the connecting parts and the universal wheel assembly can be minimized, further improving the sensitivity of the work box in following the swing adjustment of the traction equipment, making the universal wheel assembly and roller brush assembly more flexible in following the undulations of the surface to be cleaned, and giving the grass collector a stronger ability to adapt to road surfaces.

[0009] In one embodiment of this application, the second connecting part is connected to the work box via a pin or hinge.

[0010] As described above, the working box and the connecting part will rotate frequently when the connecting part and the working box move with the traction equipment. Therefore, they are more prone to failure or damage in actual use. In this embodiment, the second connecting part and the working box adopt a more mature method such as a pin or hinge to realize the rotational connection between the connecting part and the working box. This can reduce the maintenance cost and maintenance difficulty in the later use of the grass collector and make the grass collector more practical.

[0011] In one embodiment of this application, the work box is provided with a first connecting hole, and the second connecting part is provided with a second connecting hole. The first connecting hole and the second connecting hole are coaxially arranged, and a pivot is inserted into the first connecting hole and the second connecting hole to rotatably connect the work box and the second connecting part.

[0012] By bringing the second connecting part close to the work box in the above manner, the second connecting hole coincides with the first connecting hole in the width direction. The pivot is inserted into the first connecting hole and the second connecting hole, and the second connecting part and the work box can rotate around the pivot to realize the rotational connection between the connecting part and the work box. The connection structure is simple, reliable and easy to use.

[0013] In one embodiment of this application, the caster wheel assembly includes: a swivel base and a roller body.

[0014] The rotating base is fixedly connected to the work box;

[0015] The roller body is rotatably connected to the rotating seat.

[0016] In this way, when the traction device moves the grass collector, the work box can swing relative to the traction device under the action of the connecting piece. At the same time, the roller body can rotate relative to the work box through the rotating seat, so that the work box can adapt to the undulation of the surface to be cleaned when following the traction device and maintain a stable distance from the surface to be cleaned. This keeps the distance between the roller brush assembly and the surface to be cleaned relatively stable, which helps the roller brush assembly to pick up grass clippings, fallen leaves, branches and other debris on the undulating surface to be cleaned.

[0017] In one embodiment of this application, the rotating seat has a first axis perpendicular to the surface to be cleaned, and the roller body is configured to rotate relative to the work box about the first axis, the orthographic projection of the first axis in the width direction of the work box being located on the roller brush assembly.

[0018] In the above manner, with the caster assembly positioned on both sides of the roller brush assembly along the width of the work box, the orthographic projection of the first axis of the rotating seat onto the roller brush assembly in the width direction of the work box can restrict the arrangement of the roller brush assembly and the caster assembly on the work box. When viewed from the left and right sides of the work box in the width direction, there is at least a partial overlap between the roller brush assembly and the caster assemblies on the left and right sides. This prevents the caster assembly and the roller brush assembly from being misaligned due to excessive spacing in the length direction of the work box. This allows the roller brush assembly to follow the caster assembly up and down along the undulations of the surface to be cleaned, ensuring a high degree of consistency between the roller brush assembly and the caster assembly. It also prevents problems such as excessive wear of the roller brush assembly or inability to effectively pick up materials from the surface to be cleaned due to significant differences in the undulations of the surfaces where the roller brush assembly and the caster assembly are located.

[0019] In one embodiment of this application, the work box has a cavity for accommodating the roller brush assembly, the roller brush assembly being rotatable within the cavity; and / or,

[0020] The grass collector also includes a first drive assembly, which is disposed in the working box and is used to drive the roller brush assembly to rotate inside the machine cavity.

[0021] In this way, the machine cavity is formed inside the working box and is open at the bottom along the height direction of the working box, so that the roller brush assembly can contact the surface to be cleaned to achieve cleaning when it is working. At the same time, under the action of the first drive assembly, the roller brush assembly can be driven to rotate inside the machine cavity. As the grass collector moves with the traction device, the working box swings relative to the traction device through the connecting piece to adapt to the undulation of the surface to be cleaned, thereby improving the cleaning effect on the undulating surface to be cleaned.

[0022] In one embodiment of this application, the first drive assembly includes: a first drive motor disposed on the work box; a drive gear disposed on the work box and mounted on the first drive motor; a transmission gear disposed on the work box and meshing with the drive gear; and a driven gear disposed on the work box and meshing with the transmission gear. The driven gear is connected to the roller brush assembly to drive the roller brush assembly to operate.

[0023] In this way, the gear drive of the grass collector not only has higher transmission accuracy and better stability than belt drive, but also has stronger power transmission and load-bearing capacity, which can extend the service life of the roller brush assembly transmission structure and improve the practicality of the grass collector.

[0024] In one embodiment of this application, the work box is configured to move along its length, the work box having a front side and a rear side along its length, the connector being located on the front side of the work box, and the collection box being located on the rear side of the work box; and / or,

[0025] The collection box includes a collection bracket and a collection bag, with the collection bracket rotatably mounted on the rear side of the work box.

[0026] In this way, the connector on the front of the work box can be connected to the traction device. When the grass collector moves with the traction device, the work box can sweep the surface to be cleaned and roll up grass clippings, fallen leaves, branches and other debris and transport them to the collection box for storage. At the same time, the collection bag is installed on the collection bracket to form the collection box. The bag body of the collection bag constitutes the box wall of the collection box. After the grass collector finishes working, the collection box can be opened by rotating the collection bracket to facilitate the cleaning of the debris stored inside the collection box.

[0027] In one embodiment of this application, the grass collector further includes a second drive assembly disposed on the work box for driving the collection bracket to open and close relative to the work box.

[0028] By using the above method, the second drive component can control the opening and closing of the collection box without manually lifting it, reducing the difficulty of opening the collection box and the intensity of manual operation, and improving the automation level of the grass collector.

[0029] In one embodiment of this application, the grass collector further includes a control component, which is at least capable of controlling the start and stop of the roller brush assembly and / or the opening and closing of the collection box.

[0030] In this way, the control component allows the grass collector to move with the traction equipment, controlling the roller brush assembly to roll up grass clippings, fallen leaves, branches and other debris on the surface to be cleaned. At the same time, when the grass collector finishes working or the collection box is full of debris, the collection box is opened to empty the stored debris, thus improving the automation performance of the grass collector equipment.

[0031] Accordingly, this application also provides a mowing system, including the aforementioned grass collector and mowing robot, wherein the mowing robot includes a body and the body is fixedly connected to the connecting part of the grass collector.

[0032] The beneficial effects of this application are as follows: the connecting part can be fixedly installed on the traction equipment through the first connecting part, and can be rotatably connected to the working box through the second connecting part. When the grass collector moves with the traction equipment on the undulating cleaning surface, the working box and the connecting part can rotate at a certain angle according to the undulation of the surface to be cleaned. At the same time, with the universal wheel assembly installed at the bottom of the working box, the grass collector can swing in all directions with the traction equipment, that is, the grass collector can move in the up, down, left and right directions relative to the traction equipment. The distance between the roller brush assembly and the surface to be cleaned is automatically adjusted according to the undulation of the surface to be cleaned, which greatly improves the flexibility of the grass collector when moving with the traction equipment and solves the problem of cumbersome operation caused by manually adjusting the lifting mechanism. Furthermore, by simultaneously mounting the second connecting part of the connector and the universal wheel assembly on the work box, the distance between the rotational position of the work box and the connector and the vertical projection of the universal wheel assembly can be reduced, thereby improving the sensitivity of the work box in following the swing adjustment of the traction equipment. The surface to be cleaned, where the roller brush assembly and the universal wheel assembly are located, should be kept as consistent as possible. The roller brush assembly can promptly follow the universal wheel assembly in swinging according to the undulations of the surface to be cleaned, ensuring high consistency in movement between the two on the surface to be cleaned. This prevents excessive wear of the roller brush assembly or its inability to effectively pick up materials from the surface to be cleaned due to significant differences in the undulations of the roller brush assembly and the universal wheel assembly. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of an embodiment of the grass collector of this application from one perspective;

[0035] Figure 2 yes Figure 1 A schematic diagram of the grass collector from another perspective;

[0036] Figure 3 yes Figure 1 A side view of the grass collector shown.

[0037] Figure 4 yes Figure 3 A schematic diagram of the three-dimensional cross-sectional structure of the grass collector along the DD direction.

[0038] Figure 5 yes Figure 1 A schematic diagram of the connecting parts in the grass collector shown;

[0039] Figure 6 yes Figure 1 A schematic diagram of the working box in the grass collector from one perspective;

[0040] Figure 7 yes Figure 4 A magnified structural diagram of point A in the grass collector shown;

[0041] Figure 8 yes Figure 4 A magnified schematic diagram of point B in the grass collector shown;

[0042] Figure 9 yes Figure 1 A schematic diagram of the universal wheel assembly in the grass collector shown;

[0043] Figure 10 yes Figure 1 A structural schematic diagram of the working box in the grass collector from another perspective;

[0044] Figure 11 yes Figure 1 The diagram shows the connection structure between the roller brush assembly and the first drive assembly and the movable arm in the grass collector.

[0045] Figure 12 yes Figure 10 An enlarged structural diagram of point C in the work box shown;

[0046] Figure 13 yes Figure 1 A schematic diagram of the connection structure between the collecting bracket and the second drive assembly in the grass collector shown.

[0047] Figure 14 yes Figure 13 The diagram shows the structure of the cover plate in the collection bracket;

[0048] Figure 15 yes Figure 13 The diagram shows the structure of the flipping component in the collection bracket.

[0049] Explanation of reference numerals in the attached figures:

[0050] 10. Working box; 101. Machine cavity; 1011. Support groove; 1012. Recessed part; 1013. Core sleeve; 102. First receiving part; 1021. First connecting hole; 103. Second receiving part; 104. First base; 1041. Motor bracket; 105. Second base; 106. Support seat; 1061. Support cover; 1062. Support sleeve; 107. Third base; 1071. First mounting part; 1072. Second mounting part; 1073. Third mounting part; 108. Bearing seat; 109. Movable arm; 1091. Ear sleeve; 1092. Movable shaft; 1093. Insertion hole; 20. Connector; 201. First connecting part; 202. Second connecting part; 2021. Second connecting hole; 2022. Weight reduction groove; 30. Roller brush assembly; 301. Roller; 3 011, Bushing; 302, Brush Body; 40, Collection Box; 401, Collection Bracket; 4011, Cover Plate; 40111, Bag Mounting Bracket; 40112, Claw Groove; 4012, Flipping Component; 40121, Flipping Shaft; 40122, Flipping Claw; 40123, First Flipping Arm; 40124, Second Flipping Arm; 40125, Rotating Shaft; 40126, Drive Groove; 402, Collection Bag; 50, Universal Wheel Assembly; 501, Rotating Seat; 5011, Mounting Shaft; 502, Roller Body; 60, First Drive Assembly; 601, First Drive Motor; 602, Drive Gear; 603, Driven Gear; 604, Transmission Gear; 70, Second Drive Assembly; 701, Second Drive Motor; 702, Connecting Gear; 80, Control Assembly; 90, Pivot; a, First Axis. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.

[0052] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "stacked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0053] This application provides a grass collector and a mowing system, which are described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0054] Reference Figures 1 to 5 In one embodiment, a grass collector includes: a work box 10, a connector 20, a roller brush assembly 30, a collection box 40, and a caster wheel assembly 50.

[0055] Specifically, the work box 10 has a front and rear side in the length direction X, a left and right side in the width direction Y, and a top and bottom in the height direction Z, wherein the length direction X, the width direction Y, and the height direction Z are perpendicular to each other. When the work box 10 has a front and rear side in the length direction X, the work box 10 can be configured to move in the length direction X. The connector 20 is located on the front side of the work box 10, and the collection box 40 is located on the rear side of the work box 10. In practical applications, the connector 20 on the front side of the work box 10 can be connected to a traction device. When the grass collector moves with the traction device, the work box 10 can sweep the ground and roll up and transport grass clippings, fallen leaves, branches, and other debris into the collection box 40 for storage.

[0056] The connector 20 includes a first connecting part 201 and a second connecting part 202. The connector 20 is fixedly connected to the traction device via the first connecting part 201, allowing the work box 10 to move with the traction device. The second connecting part 202 is located on the work box 10, and the connector 20 is rotatably connected to the work box 10 via the second connecting part 202. This rotatable connection between the connector 20 and the work box 10 allows the connector 20 to swing relative to the work box 10 in the height direction Z. The fixed connection between the connector 201 and the traction device allows the work box 10 to be fixed to the traction device via the connector 20. Thus, the connector 20 achieves both a fixed connection with the traction device and a rotatable connection with the work box 10. When the traction device moves the work box 10, it can swing according to the undulations of the ground surface to be cleaned, maintaining a suitable distance between the work box 10 and the surface to be cleaned, improving the adaptability of the work box 10 to the surface. The traction device can be a lawnmower, tractor, combine harvester, or other similar equipment. In practical applications, the first connecting part 201 can be L-shaped, and the second connecting part 202 is located on one side plate of the L-shaped first connecting part 201. The first connecting part 201 can be provided with multiple round holes and / or oblong holes, so that the first connecting part 201 can be fixed to the traction equipment by means of fixing pins or bolt assemblies; the second connecting part 202 can be provided with multiple weight-reducing grooves 2022 to reduce the overall weight of the connecting part 20, save materials, and facilitate handling.

[0057] It should be noted that in this embodiment, the first connecting part 201 and the second connecting part 202 are integral parts. Integral connection parts 201 and 202 have higher strength, longer lifespan, and are less prone to deformation or damage during use. Of course, in other embodiments, the first connecting part 201 and the second connecting part 202 can also be welded parts; this is not a limitation. The roller brush assembly 30 is rotatably disposed within the work box 10, used to move with the work box 10 and clean debris from the surface to be cleaned; the roller brush assembly 30 can rotate itself as it moves with the work box 10 to pick up grass clippings, fallen leaves, branches, and other debris from the surface to be cleaned along the movement path of the work box 10.

[0058] The collection box 40 is connected to the work box 10 and is used to hold debris on the surface to be cleaned. After the roller brush assembly 30 picks up grass clippings and other debris on the surface to be cleaned, the picked-up grass clippings and other debris enter the collection box 40, realizing the temporary storage of grass clippings and other debris.

[0059] The caster wheel assembly 50 is located at the bottom of the work box 10 to support the work box 10. The caster wheel assembly 50 can be installed at the bottom of the work box 10 and support the work box 10 to move on the surface to be cleaned.

[0060] In the above manner, the connector 20 can be fixedly installed on the traction equipment via the first connecting part 201, and can be rotatably connected to the work box 10 via the second connecting part 202. When the grass collector moves with the traction equipment on the undulating cleaning surface, the work box 10 and the connector 20 can rotate at a certain angle according to the undulation of the surface to be cleaned. Simultaneously, in conjunction with the universal wheel assembly 50 installed at the bottom of the work box 10, the grass collector can achieve universal swinging with the traction equipment, meaning the grass collector can move relative to the traction equipment in the up, down, left, and right directions. The distance between the roller brush assembly 30 and the surface to be cleaned is automatically adjusted according to the undulation of the surface, greatly improving the flexibility of the grass collector during the movement of the traction equipment and solving the problem of cumbersome operation caused by manually adjusting the lifting mechanism. Furthermore, through… Furthermore, by simultaneously mounting the second connecting part 202 of the connector 20 and the universal wheel assembly 50 on the work box 10, the distance between the rotational position of the work box 10 and the connector 20 and the vertical projection of the universal wheel assembly 50 can be reduced, thereby improving the sensitivity of the work box 10 in following the swing adjustment of the traction equipment. The surface to be cleaned, where the roller brush assembly 30 and the universal wheel assembly 50 are located, should be kept as consistent as possible. The roller brush assembly 30 can promptly follow the universal wheel assembly 50 in swinging according to the undulations of the surface to be cleaned, so that the two have a high degree of consistency in movement on the surface to be cleaned. This prevents the roller brush assembly 30 from wearing too much or failing to effectively pick up the material on the surface to be cleaned due to the large difference in undulation between the roller brush assembly 30 and the universal wheel assembly 50.

[0061] In one embodiment, reference is made to Figure 3 The orthographic projection of the second connecting part 202 in the vertical direction is located within the orthographic projection of the working box 10 in the vertical direction. Specifically, when the grass collector moves on the horizontal surface to be cleaned, the vertical direction is the same as the height direction Z of the grass collector. By setting the orthographic projection of the second connecting part 202 in the vertical direction within the orthographic projection of the working box 10 in the vertical direction, the distance between the rotating parts of the working box 10 and the connecting part 20 and the universal wheel assembly 50 can be minimized. This further improves the sensitivity of the working box 10 in adjusting its height according to the swing of the traction equipment, making the universal wheel assembly 50 and the roller brush assembly 30 more flexible in following the undulations of the surface to be cleaned, and giving the grass collector a stronger ability to adapt to different road surfaces.

[0062] In one embodiment, reference is made to Figure 1 , Figure 2 , Figure 3 and Figure 5The second connecting part 202 is connected to the working box 10 by a pin or hinge. Since the working box 10 and the connecting part 20 rotate frequently when the connecting part 20 moves with the traction equipment, they are more prone to malfunction or damage during actual use. In this embodiment, a more mature method, such as a pin or hinge, is used to achieve a rotatable connection between the connecting part 20 and the working box 10. This reduces the maintenance cost and difficulty of the grass collector during later use, making the grass collector more practical.

[0063] Of course, in other embodiments, the second connecting part 202 and the work box 10 can also adopt other types of rotating connection methods to realize the connection between the connecting part 20 and the work box 10, which is not limited here.

[0064] It should be noted that the second connecting part 202 and the working box 10 are preferentially rotated in the height direction Z to ensure that the working box 10 swings when it moves with the traction equipment to adapt to the undulations of the surface to be cleaned.

[0065] In one embodiment, reference is made to Figures 1 to 3 as well as Figure 5 and Figure 6 Specifically, the work box 10 is provided with a first connecting hole 1021, and the second connecting part 202 is provided with a second connecting hole 2021. The first connecting hole 1021 and the second connecting hole 2021 are coaxially arranged. A pivot 90 is inserted into the first connecting hole 1021 and the second connecting hole 2021 to rotatably connect the work box 10 and the second connecting part 202. When the second connecting part 202 is brought close to the work box 10, so that the second connecting hole 2021 and the first connecting hole 1021 coincide in the width direction Y, and the pivot 90 is inserted into the first connecting hole 1021 and the second connecting hole 2021, the second connecting part 202 and the work box 10 can rotate around the pivot 90, realizing the rotatable connection between the connecting part 20 and the work box 10.

[0066] In this embodiment, refer to Figure 6 The work box 10 is provided with a first receiving part 102, which is an inwardly recessed space on the shell of the work box 10. When the connector 20 is rotatably engaged with the work box 10, the second connecting part 202 can enter the first receiving part 102. The first connecting hole 1021 is located on both side walls of the first receiving part 102. The first connecting hole 1021 can penetrate the shell of the work box 10 along the width direction Y, so that the pivot 90 can be inserted from either side of the first connecting hole 1021 on either side of the first receiving part 102. The second connecting hole 2021 can also penetrate the second connecting part 202 along the width direction Y. The pivot 90, the first connecting hole 1021, and the second connecting hole 2021 can realize the rotatable connection between the connector 20 and the work box 10.

[0067] It should be noted that the first connecting hole 1021 and the second connecting hole 2021 are circular or approximately circular in shape. The diameters of the first connecting hole 1021 and the second connecting hole 2021 are equal to or approximately equal to the diameter of the pivot 90, ensuring a smoother rotational fit between the pivot 90 and the two channels. The pivot 90 has a columnar structure, and at least one end of the pivot 90 is provided with a through hole, into which a positioning pin can be inserted to prevent the pivot 90 from disengaging from the two channels.

[0068] In one embodiment, reference is made to Figures 1 to 4 The caster wheel assembly 50 is located at the bottom of the work box 10 along the height direction Z, for further reference. Figure 9 The caster wheel assembly 50 includes a rotating base 501 and a roller body 502. The rotating base 501 is fixedly connected to the work box 10, and a bearing for relative rotation may be provided inside the rotating base 501; the roller body 502 is rotatably connected to the rotating base 501, and the roller body 502 can be rotatably connected to the work box 10 through the rotating base 501.

[0069] Understandably, the rotating seat 501 has two movable parts, one fixedly connected to the work box 10 and the other connected to the roller body 502. Thus, the roller body 502 can rotate relative to the work box 10 under the action of the bearing, enabling the roller body 502 to provide omnidirectional adjustable support for the work box 10. When the traction device moves the grass collector, the work box 10 can swing relative to the traction device under the action of the connecting piece 20. Simultaneously, the roller body 502 can rotate relative to the work box 10 via the rotating seat 501. This allows the work box 10 to adapt to the undulating changes of the surface to be cleaned as it moves with the traction device, maintaining a stable distance from the surface. This keeps the distance between the roller brush assembly 30 and the surface to be cleaned relatively stable, helping the roller brush assembly 30 to pick up grass clippings, fallen leaves, branches, and other debris from the undulating surface to be cleaned.

[0070] In one embodiment, reference is made to Figure 1 and Figure 4 In the length direction X of the work box 10, the caster wheel assembly 50 is located on at least one side of the roller brush assembly 30.

[0071] Specifically, when the caster wheel assembly 50 is located on one side of the roller brush assembly 30 along the length X of the work box 10, that is, the caster wheel assembly 50 is simultaneously on the front or rear side of the roller brush assembly 30. Specifically, when the caster wheel assembly 50 is simultaneously on the front side of the roller brush assembly 30, and the traction device moves the grass collector across the surface to be cleaned and encounters undulations, the caster wheel assembly 50 will reach the undulating position of the surface to be cleaned before the roller brush assembly 30. When the caster wheel assembly 50 is simultaneously on the rear side of the roller brush assembly 30, and the traction device moves the grass collector across the surface to be cleaned and encounters undulations, the roller brush assembly 30 will reach the undulating position of the surface to be cleaned before the caster wheel assembly 50. In both of the above embodiments, the caster wheel assembly 50 can adjust its posture to follow the undulations of the surface to be cleaned, achieving omnidirectional adjustment and support for the work box 10. The work box 10 swings with the caster wheel assembly 50 via the connector 20, and the roller brush assembly 30 cleans the undulating areas of the surface to be cleaned. The grass collector automatically adjusts the distance between the roller brush assembly 30 and the surface to be cleaned according to the undulations, greatly improving the flexibility of the grass collector during the movement of the traction device. This solves the problem of cumbersome operation caused by manually adjusting the lifting mechanism. Furthermore, by further setting the second connecting part 202 of the connector 20 and the caster wheel assembly 50 simultaneously in the work box 10... On the 0, the distance between the rotation position of the work box 10 and the connecting part 20 and the projection of the universal wheel assembly 50 in the vertical direction can be reduced, thereby improving the sensitivity of the work box 10 in following the swing adjustment of the traction equipment. The roller brush assembly 30 on the work box 10 and the universal wheel assembly 50 are as consistent as possible on the surface to be cleaned. The roller brush assembly 30 can follow the universal wheel assembly 50 in a timely manner according to the undulation of the surface to be cleaned, so that the two have a high degree of consistency in following the movement on the surface to be cleaned. This prevents the roller brush assembly 30 from being worn too much or from being unable to effectively roll up the material on the surface to be cleaned due to the large difference in the undulation of the roller brush assembly 30 and the universal wheel assembly 50.

[0072] When the caster wheel assemblies 50 are located on both sides of the length X of the work box 10, i.e., simultaneously on the front and rear sides of the roller brush assembly 30, the traction device moves the grass collector across the surface to be cleaned and encounters undulations. The caster wheel assembly 50 located in front of the roller brush assembly 30 moves ahead of the roller brush assembly 30 to the undulating position of the surface to be cleaned, while the caster wheel assembly 50 located behind the roller brush assembly 30 moves behind it to the undulating position. The caster wheel assemblies 50 on the front and rear sides of the roller brush assembly 30 work together to adjust their posture according to the undulations of the surface to be cleaned, achieving omnidirectional adjustment and support for the work box 10. The work box 10 swings with the caster wheel assemblies 50 via the connecting piece 20. The roller brush assembly 30 cleans the undulating surface, and the grass collector automatically adjusts the distance between the roller brush assembly 30 and the surface to be cleaned according to the undulations. This greatly improves the flexibility of the grass collector during the movement of the traction device and solves the problem of manual adjustment. To address the cumbersome operation of the lifting mechanism, and by simultaneously mounting the second connecting part 202 of the connector 20 and the universal wheel assembly 50 on the work box 10, the distance between the rotational position of the work box 10 and the connector 20 and the vertical projection of the universal wheel assembly 50 can be reduced. This improves the sensitivity of the work box 10 in adjusting its height in response to the swaying of the traction equipment. The surface to be cleaned, where the roller brush assembly 30 and the universal wheel assembly 50 are located, should be kept as consistent as possible. The roller brush assembly 30 can promptly follow the universal wheel assembly 50 in swaying according to the undulations of the surface to be cleaned, ensuring high consistency in movement between the two. This prevents excessive wear of the roller brush assembly 30 or the inability to effectively pick up materials from the surface to be cleaned due to significant differences in the undulations of the roller brush assembly 30 and the universal wheel assembly 50.

[0073] In other embodiments, the caster wheel assembly 50 may also be located on at least one side of the roller brush assembly 30 in the width direction Y of the work box 10.

[0074] Specifically, when the caster wheel assembly 50 is located on one side of the roller brush assembly 30 in the width direction Y of the work box 10, that is, the caster wheel assembly 50 is simultaneously on the left or right side of the roller brush assembly 30. Specifically, when the caster wheel assembly 50 is simultaneously on the left side of the roller brush assembly 30, and the traction device moves the grass collector across the surface to be cleaned encountering undulations, the roller brush assembly 30 can clean the surface to be cleaned to the right of the caster wheel assembly 50; when the caster wheel assembly 50 is simultaneously on the right side of the roller brush assembly 30, and the traction device moves the grass collector across the surface to be cleaned encountering undulations, the roller brush assembly 30 can clean the surface to be cleaned to the left of the caster wheel assembly 50. In both of the above embodiments, the caster assembly 50 can adjust its posture to follow the undulations of the surface to be cleaned, achieving omnidirectional adjustment and support for the work box 10. The work box 10 swings with the caster assembly 50 via the connector 20, and the roller brush assembly 30 cleans the undulating surface. The grass collector automatically adjusts the distance between the roller brush assembly 30 and the surface to be cleaned according to the undulations, greatly improving the flexibility of the grass collector during the movement of the traction equipment. This solves the problem of cumbersome operation caused by manually adjusting the lifting mechanism. Furthermore, by further setting the second connecting part 202 of the connector 20 and the caster assembly 50 simultaneously on the work box 10, the system achieves the desired effect. This can reduce the distance between the rotational position of the work box 10 and the connecting part 20 and the vertical projection of the universal wheel assembly 50, improve the sensitivity of the work box 10 in following the swing adjustment of the traction equipment, and keep the surface to be cleaned as consistent as possible with the surface to be cleaned where the roller brush assembly 30 and the universal wheel assembly 50 are located. The roller brush assembly 30 can follow the universal wheel assembly 50 in a timely manner according to the undulation of the surface to be cleaned, so that the two have a high degree of consistency in following the movement on the surface to be cleaned, and prevent the roller brush assembly 30 from being worn too much or unable to effectively roll up the material on the surface to be cleaned due to the large difference in the undulation of the surface to be cleaned where the roller brush assembly 30 and the universal wheel assembly 50 are located.

[0075] When the caster wheel assembly 50 is located on both sides of the roller brush assembly 30 in the width direction Y of the work box 10, that is, the caster wheel assembly 50 is simultaneously on the left and right sides of the roller brush assembly 30, the roller brush assembly 30 is positioned between the left and right caster wheel assemblies 50. When the traction device drives the grass collector to move on the surface to be cleaned and encounters undulations, the caster wheel assemblies 50 located on the left and right sides of the roller brush assembly 30 cooperate to adjust their own posture to follow the undulations of the surface to be cleaned, realizing universal adjustment and support for the work box 10. The work box 10 swings with the caster wheel assembly 50 through the connecting piece 20, and the undulating surface to be cleaned between the caster wheel assemblies 50 on the left and right sides of the roller brush assembly 30 is cleaned. The grass collector automatically adjusts the distance between the roller brush assembly 30 and the surface to be cleaned according to the undulations of the surface to be cleaned, which greatly improves the flexibility of the grass collector in the process of following the traction device and solves the problem of cumbersome operation caused by manually adjusting the lifting mechanism. Moreover, through the... By simultaneously mounting the second connecting part 202 of the connector 20 and the universal wheel assembly 50 on the work box 10, the distance between the rotational position of the work box 10 and the connector 20 and the vertical projection of the universal wheel assembly 50 can be reduced. This improves the sensitivity of the work box 10 in following the swing adjustment of the traction equipment. The surface to be cleaned, where the roller brush assembly 30 and the universal wheel assembly 50 are located, should be kept as consistent as possible. The roller brush assembly 30 can follow the universal wheel assembly 50 in a timely manner according to the undulations of the surface to be cleaned, so that the two have a high degree of consistency in movement on the surface to be cleaned. This prevents the roller brush assembly 30 from wearing too much or failing to effectively pick up the material on the surface to be cleaned due to the large difference in undulation between the roller brush assembly 30 and the universal wheel assembly 50.

[0076] It should be noted that in this application Figures 1 to 4 The examples described herein are based on the universal wheel assembly 50 being located on both sides of the roller brush assembly 30 in the width direction Y of the work box 10. Although the embodiments described in this application regarding the universal wheel assembly 50 being located on at least one side of the roller brush assembly 30 in the length direction X of the work box 10, and the embodiments regarding the universal wheel assembly 50 being located on one side of the roller brush assembly 30 in the width direction Y of the work box 10 are not shown in the figures, they should also be within the scope of protection of this application.

[0077] In one embodiment, reference is made to Figure 4 as well as Figures 7 to 9Specifically, the rotating seat 501 has a first axis a perpendicular to the surface to be cleaned, and the roller body 502 is configured to rotate relative to the work box 10 about the first axis a. The orthogonal projection of the first axis a in the width direction X of the work box 10 is located on the roller brush assembly 30. With the caster assembly 50 positioned on both sides of the roller brush assembly 30 along the width Y direction of the work box 10, the orthographic projection of the first axis a of the rotating seat 501 onto the roller brush assembly 30 in the width X direction of the work box 10 can restrict the arrangement of the roller brush assembly 30 and the caster assembly 50 on the work box 10. When viewed from the left and right sides of the work box 10 in the width Y direction, there is at least a partial overlap between the roller brush assembly 30 and the caster assemblies 50 on the left and right sides. This prevents the caster assembly 50 and the roller brush assembly 30 from being too far apart and completely misaligned in the length X direction of the work box 10. This allows the roller brush assembly 30 to follow the caster assembly 50 up and down along the undulations of the surface to be cleaned, ensuring that the roller brush assembly 30 and the caster assembly 50 have high consistency in movement. This prevents the roller brush assembly 30 from being worn too much or unable to effectively pick up the material on the surface to be cleaned due to the large difference in the undulations of the surface where the roller brush assembly 30 and the caster assembly 50 are located.

[0078] In practical applications, when the traction device moves the grass collector on the surface to be cleaned, the roller body 502 rolls along the surface under the rotational cooperation of the connecting member 20 and the working box 10, and rotates along the first axis a under the action of the rotating seat 501, realizing the universal adjustment support of the universal wheel assembly 50 for the working box 10. The working box 10 swings relative to the connecting member 20. When the working box 10 encounters undulations in the surface to be cleaned, the roller body 502 changes its own posture through the rotating seat 501 to adapt to the undulations in the surface to be cleaned, and supports the swing of the working box 10. Since the roller brush assembly 30 is located on the left and right sides of the universal wheel assembly 50... There is at least a partial overlap between them, which allows the roller brush assembly 30 to swing in time with the universal wheel assembly 50 to adapt to the undulations of the surface to be cleaned. The roller brush assembly 30 can clean the surface to be cleaned between the left and right universal wheel assemblies 50, avoiding the problem that the roller brush assembly 30 cannot swing synchronously according to the undulations of the surface to be cleaned due to misalignment with the universal wheel assembly 50. This also prevents the roller brush assembly 30 from wearing too much or failing to effectively pick up the material on the surface to be cleaned due to the large difference in undulations between the roller brush assembly 30 and the universal wheel assembly 50.

[0079] In this embodiment, further reference is made to Figure 6 and Figure 10The rotating seat 501 may have a mounting shaft 5011, and the first axis a may be the center line of the mounting shaft 5011. The universal wheel assembly 50 may rotate around the first axis a of the mounting shaft 5011. The left and right sides of the work box 10 are respectively provided with second receiving parts 103. The second receiving parts 103 are equipped with a bearing seat 108. The bearing seat 108 is used to install the universal wheel assembly 50. The bearing seat 108 may be fixed in the second receiving part 103 by bolt assembly. The bearing seat 108 is provided with through holes corresponding to the mounting shaft 5011. Multiple fixing holes are provided around the through holes. The rotating seat 501 may be fixed to the bearing seat 108 by mounting bolt assembly in the fixing holes, thereby realizing the assembly and fixing of the universal wheel assembly 50 and the bearing seat 108.

[0080] In one embodiment, reference is made to Figure 1 , Figure 4 and Figure 10 The working box 10 has a cavity 101 inside, which is used to accommodate the roller brush assembly 30. The roller brush assembly 30 can rotate inside the cavity 101. The cavity 101 is formed inside the working box 10 and is open at the bottom along the height direction Z of the working box 10, so that the roller brush assembly 30 can contact the surface to be cleaned to achieve material cleaning when it is working.

[0081] Further reference Figure 2 and Figure 4 The grass collector also includes a first drive assembly 60, which is disposed in the work box 10 and used to drive the roller brush assembly 30 to rotate inside the machine cavity 101. In practical applications, the work box 10 is provided with a first base 104 for mounting the first drive assembly 60. The first base 104 is formed on the work box 10 and has a matching seat plate, thereby isolating the interior of the first base 104 from the outside. Under the action of the first drive assembly 60, the roller brush assembly 30 can be driven to rotate inside the machine cavity 101. As the grass collector moves with the traction device, the work box 10 swings relative to the traction device through the connecting piece 20 to adapt to the undulations of the surface to be cleaned, improving the cleaning effect on the undulating surface to be cleaned.

[0082] In this embodiment, further reference is made to Figure 6 , Figure 10 and Figure 11 Specifically, the first drive assembly 60 includes: a first drive motor 601, which is mounted on the work box 10; the first drive motor 601 is installed in the first base 104, and the first base 104 may be provided with a motor mount for fixing the first drive motor 601, which helps to reduce the vibration generated by the first drive motor 601 when it is working and reduce the impact of motor vibration on the grass collector.

[0083] The work box 10 is provided with a third base 107, which is located on the side wall of the work box 10. The third base 107 has a matching seat plate, which can separate the interior of the third base 107 from the outside. The third base 107 is also provided with a first mounting part 1071, a second mounting part 1072 and a third mounting part 1073 arranged in sequence.

[0084] The drive gear 602 is mounted on the work box 10 and is mounted on the first drive motor 601. The drive gear 602 is rotatably mounted in the first mounting part 1071, and the output shaft of the first drive motor 601 passes through the side wall of the first base 104 and connects to the drive gear 602 located in the first mounting part 1071, thereby driving the drive gear 602 to rotate.

[0085] The transmission gear 604 is mounted on the work box 10 and meshes with the drive gear 602. The transmission gear 604 is rotatably mounted in the third mounting part 1073 and can transmit the power of the first drive motor 601.

[0086] Driven gear 603 is mounted on the work box 10 and meshes with transmission gear 604. Driven gear 603 is connected to roller brush assembly 30 to drive roller brush assembly 30 to run. Driven gear 603 is rotatably mounted in the second mounting part 1072 and is connected to roller brush assembly 30. Driven gear 603 transmits power to roller brush assembly 30 under the action of transmission gear 604, so that roller brush assembly 30 runs to clean the surface to be cleaned.

[0087] Therefore, compared with belt drive, the gear drive of the grass collector not only has higher transmission accuracy and better stability, but also stronger power transmission and load-bearing capacity, which can extend the service life of the roller brush assembly 30 transmission structure and improve the practicality of the grass collector.

[0088] In other embodiments, refer to Figures 10 to 12 Specifically, the roller brush assembly 30 includes a roller 301 and a brush body 302 mounted on the roller 301. The brush body 302 and the roller 301 can be a single piece. The brush body 302 can be made of materials that combine wear resistance, corrosion resistance, and environmental adaptability, such as polyester fiber, nylon, natural fiber, or composite materials. The brush body 302 rotates within the machine cavity 101 via the roller 301. Specifically, the inner side walls of the machine cavity 101 are provided with support grooves 1011 for supporting the roller 301. Bushings 3011 are respectively installed at both ends of the roller 301. The bushings 3011 can be installed in the support grooves 1011. The end of the roller 301 near the driven gear 603 extends from inside the machine cavity 101 to the outside through the wall of the work box 10. The driven gear 603 is fixedly mounted on the roller 301. The roller 301 can drive the brush body 302 to rotate to clean debris from the surface to be cleaned.

[0089] As a preferred method, refer to Figures 10 to 12 The roller brush assembly 30 is detachably disposed within the machine cavity 101. Specifically, a movable arm 109 is disposed on the side wall of the machine cavity 101 away from the driven gear 603. A recess 1012 for rotatably mounting the movable arm 109 is disposed on the side wall of the machine cavity 101 corresponding to the movable arm 109. A portion of the support groove 1011 is located on the movable arm 109, and the other portion of the support groove 1011 is located on the side wall of the machine cavity 101 and communicates with the recess 1012. That is, the support groove 1011 disposed on one side of the movable arm 109 is formed on the movable arm 109 and the machine cavity 101. When the movable arm 109 is opened, the support groove 1011 located on the corresponding side wall of the machine cavity 101 can be opened, and the bushing 3011 at the end of the roller 301 located in the support groove 1011 can be removed. The other end of the roller 301 is disengaged from the driven gear 603, and the roller brush assembly 30 can be disassembled from the work box 10. Therefore, the roller brush assembly 30 is detachably installed on the work box 10. When the roller brush assembly 30 is damaged or malfunctions, it can be directly removed from the grass collector for replacement, which facilitates the inspection and maintenance of the roller brush assembly 30.

[0090] In practical applications, the movable arm 109 is rotatably mounted in the recessed portion 1012. At least one ear sleeve 1091 is provided at one end of the movable arm 109. A core sleeve 1013 is provided in the recessed portion 1012. A movable shaft 1092 that passes through the core sleeve 1013 is installed in the ear sleeve 1091. The movable arm 109 can rotate around the movable shaft 1092, so that one end of the movable arm 109 is rotatably mounted in the recessed portion 1012. The other end of the movable arm 109 is provided with a plug hole 1093 for installing bolts or screws. A threaded hole coaxial with the plug hole 1093 is provided on the recessed portion 1012. The movable arm 109 can be fixed in the recessed portion 1012 by cooperating with bolts or screws.

[0091] It should be noted that the installation method of the movable arm 109 in the recess 1012 is not limited to a rotating connection. The movable arm 109 can also be directly installed in the recess 1012 by bolts or screws, or a snap-fit ​​mechanism can be provided on the movable arm 109 and the recess 1012 to achieve the assembly connection between the two. Although these are not shown in the figure, they should also be within the scope of protection of this application.

[0092] In one embodiment, reference is made to Figures 2 to 4The collection box 40 includes a collection bracket 401 and a collection bag 402. The collection bracket 401 is rotatably mounted on the rear side of the work box 10. The collection bag 402 is installed on the collection bracket 401 to form the collection box 40. The bag body of the collection bag 402 constitutes the box wall of the collection box 40. After the grass collector finishes working, the collection box 40 can be opened by rotating the collection bracket 401 to facilitate the cleaning of grass clippings, fallen leaves, branches and other debris stored inside the collection box 40.

[0093] In this embodiment, further reference is made to Figures 13 to 15 Specifically, the collection bracket 401 includes a cover plate 4011 and a flip-up component 4012. The cover plate 4011 and the flip-up component 4012 can be a detachably connected assembly or a one-piece molded component. When the cover plate 4011 and the flip-up component 4012 are detachably connected assemblies, please refer to [the relevant documentation]. Figure 14 The cover plate 4011 may further include a bag mounting frame 40111 and a claw groove 40112; the bag mounting frame 40111 includes a plurality of bag rods arranged on the cover plate 4011, so that the collection bag 402 is supported after being fitted on the bag rods, so that the inside of the collection bag 402 forms a space for holding grass clippings, fallen leaves, branches and other debris, which can collect grass clippings, fallen leaves, branches and other debris rolled up by the bottom roller brush assembly 30 of the work box 10. In addition, the claw groove 40112 is located at the bottom of the cover plate 4011 and is used to cooperate with the flipping part 4012 to realize the assembly between the cover plate 4011 and the flipping part 4012.

[0094] It should be noted that the collection bag 402 is detachably mounted on the bag handle, and can be replaced when the collection bag 402 is damaged or old, to prevent leakage from the collection box 40.

[0095] Reference Figure 15 The flipping component 4012 may further include a flipping shaft 40121, a flipping claw 40122, a first flipping arm 40123, and a second flipping arm 40124. The flipping claw 40122 is disposed on the same side of the flipping shaft 40121 and is used to cooperate with the claw groove 40112 to install the cover plate 4011 on one side of the flipping shaft 40121. The first flipping arm 40123 and the second flipping arm 40124 are disposed on the other side of the flipping shaft 40121 opposite to the flipping claw 40122. The first flipping arm 40123 and the second flipping arm 40124 are used to rotatably connect with the work box 10 to realize the rotatable connection between the collection bracket 401 and the work box 10.

[0096] In addition, the flipping component 4012 may also include a rotating shaft 40125 disposed on the first flipping arm 40123 and the second flipping arm 40124. The work box 10 may be provided with a rotating hole corresponding to the rotating shaft 40125 on the top. Through the cooperation between the rotating shaft 40125 and the rotating hole, the rotational connection between the two flipping arms and the work box 10 can be realized.

[0097] It should be noted that multiple recessed grooves are provided on the middle part of the flipping shaft 40121, the flipping claw 40122, the first flipping arm 40123 and the second flipping arm 40124. Multiple extension grooves extending along their respective axes are provided at the end of the flipping shaft 40121 and inside the rotating shaft 40125. This not only reduces the weight of the entire flipping component 4012, but also forms a reinforcing rib structure between adjacent recessed grooves or extension grooves, ensuring the strength of the flipping component 4012 itself.

[0098] In one embodiment, reference is made to Figure 4 and Figure 13 The grass collector also includes a second drive assembly 70, which is mounted on the work box 10 and is used to drive the collection bracket 401 to open and close relative to the work box 10.

[0099] Specifically, the second drive assembly 70 includes a second drive motor 701 and a connecting gear 702, with the connecting gear 702 mounted on the output end of the second drive motor 701.

[0100] In this embodiment, further reference is made to Figure 2 , Figure 3 , Figure 6 and Figure 10 The top of the work box 10 is provided with a second base 105. The second drive motor 701 is installed in the second base 105. The second base 105 can be provided with a motor bracket 1041 for installing the second drive motor 701, which helps to reduce the vibration generated by the first drive motor 601 when it is working and reduce the impact of motor vibration on the grass collector. The output shaft of the second drive motor 701 passes through the side wall of the second base 105. Support seats 106 are provided on both sides of the second base 105. The support seats 106 are used to place the rotating shaft 40125. The support seats 106 can also be provided with a support cover 1061 that is adapted to the support seats 106. Furthermore, a support sleeve 1062 can be provided between the support cover 1061 and the support seat 106. The support sleeve 1062 can be installed on the rotating shaft 40125 to achieve rotational support for the rotating shaft 40125.

[0101] Furthermore, in this embodiment, the width of the second flipping arm 40124 is greater than that of the first flipping arm 40123, giving the second flipping arm 40124 higher strength. The second flipping arm 40124 can serve as a component that drives the entire flipping member 4012 to rotate. The second flipping arm 40124 has a drive groove 40126 on the other side wall relative to the rotating shaft 40125. The drive groove 40126 can be a connecting tooth groove. The output shaft of the second drive motor 701 can be equipped with a connecting gear 702 that is adapted to the connecting tooth groove. Through the cooperation between the connecting gear 702 and the connecting tooth groove, the flipping member 4012 can be flipped by the second flipping arm 40124, thereby realizing the opening and closing of the collection box 40.

[0102] Therefore, by setting the second drive component 70, the collection box 40 can be controlled to open and close without manually lifting the collection box 40, reducing the difficulty of opening the collection box 40 and the intensity of manual operation, and improving the automation level of the grass collector.

[0103] It should be noted that the second drive assembly 70 may also include a reduction gearbox connected to the second drive motor 701 to reduce the opening and closing speed of the collection box 40, reduce the impact force between the collection box 40 and the working box 10, and improve the safety performance of the grass collector.

[0104] In one embodiment, reference is made to Figure 1 and Figure 3 The grass collector also includes a control component 80, which is at least capable of controlling the start and stop of the roller brush assembly 30 and / or the opening and closing of the collection box 40.

[0105] Specifically, the control component 80 can be installed on the left or right side wall of the work box 10 along the width direction Y. The control component 80 can be electrically connected to the first drive component 60 and the second drive component 70 respectively. When the grass collector moves with the traction device, the first drive component 60 is started, driving the roller brush component 30 to work and follow the work box 10 to swing and undulate with the surface to be cleaned, rolling up grass clippings, fallen leaves, branches and other debris on the ground. When the grass collector finishes working, the first drive component 60 is turned off and the roller brush component 30 stops working. When the grass collector's collection box 40 has too much grass clippings, fallen leaves, branches and other debris stored in it, or when the work is finished, the second drive component 70 can be started to open the collection box 40, so that the debris stored inside can be cleaned out. After cleaning, the second drive motor 701 of the second drive component 70 is reversed to close the collection box 40 so that the grass collector can continue to collect and store debris when it works again.

[0106] Therefore, by controlling component 80, the grass collector can control the roller brush component 30 to roll up the debris on the surface to be cleaned when it moves with the traction equipment. At the same time, when the grass collector finishes working or when the collection box 40 is full of debris, the collection box 40 is opened to empty the debris stored inside, thereby improving the automation performance of the grass collector equipment.

[0107] Accordingly, this application also provides a lawn mowing system, including the grass collector and the lawn mowing robot described in the above embodiments. The lawn mowing robot includes a body, which is fixedly connected to the connecting member 20 of the grass collector. Since this lawn mowing system includes the grass collector described in the above embodiments, the lawn mowing system also has the same effect as the grass collector, and will not be described in detail here.

[0108] The technical solutions provided in this application are described below with reference to specific embodiments.

[0109] Example 1:

[0110] The grass collector is mounted on a lawnmower, which drives it to collect the grass clippings after the mower has cut the grass, thus cleaning the lawn. The grass collector includes a work box 10, which serves as the supporting frame for the grass collector, upon which other components can be mounted. The grass collector also includes a connector 20, which comprises a first connecting part 201 and a second connecting part 202. The connector 20 is fixedly connected to the lawnmower via the first connecting part 201, allowing the work box 10 to move with the traction device. The second connecting part 202 is located on the work box 10, and the connector 20 is rotatably connected to the work box 10 via the second connecting part 202. As the grass collector moves with the mower, it can oscillate relative to the mower to adapt to the unevenness of the lawn. The grass collector also includes a roller brush assembly 30, rotatably mounted inside the work box 10, used to move with the work box 10 and sweep away debris from the lawn. The grass collector also includes a collection box 40, which is connected to the work box 10 and is used to hold grass clippings and other debris on the grass. The roller brush assembly 30 rolls up the grass on the grass and temporarily stores it through the collection box 40. The grass collector also includes a caster assembly 50, which is located at the bottom of the work box 10 and is used to support the work box 10.

[0111] When the user needs to use the collector to clean the lawn, the lawnmower moves across the lawn to cut and trim the grass. The collector moves with the lawnmower, and the roller brush assembly 30 picks up the grass clippings that fall on the lawn and throws them into the collection box 40 for temporary storage. When the lawnmower runs to an undulating lawn, the working box 10 of the grass collector and the connecting part 20 can rotate at a certain angle according to the undulation of the lawn. At the same time, with the universal wheel assembly 50 installed at the bottom of the working box 10, the grass collector can swing in all directions with the lawnmower, that is, the grass collector can move up, down, left and right relative to the traction device. It automatically adjusts the distance between the roller brush assembly 30 and the lawn according to the undulation of the lawn, which greatly improves the flexibility of the grass collector when moving with the traction device. It solves the problem of cumbersome operation caused by manually adjusting the lifting mechanism. Moreover, by further setting the second connecting part 202 of the connecting part 20 and the universal wheel assembly 50 at the same time, the grass collector can achieve the same effect. By placing it on the work box 10, the distance between the rotation position of the work box 10 and the connector 20 and the vertical projection distance of the universal wheel assembly 50 can be reduced, thereby improving the sensitivity of the work box 10 in following the swing adjustment of the lawnmower. The roller brush assembly 30 on the work box 10 and the grass where the universal wheel assembly 50 is located should be kept as consistent as possible. The roller brush assembly 30 can follow the universal wheel assembly 50 in a timely manner according to the undulation of the grass, so that the two have a high degree of consistency in following the movement on the grass. This prevents the roller brush assembly 30 from wearing too much or failing to effectively roll up the grass material due to the large difference in the undulation of the grass where the roller brush assembly 30 and the universal wheel assembly 50 are located.

[0112] Example 2:

[0113] The orthographic projection of the second connecting part 202 in the vertical direction is located within the orthographic projection of the work box 10 in the vertical direction.

[0114] When the collector is installed on the lawnmower, the orthographic projection of the second connecting part 202 in the vertical direction is set within the orthographic projection of the working box 10 in the vertical direction. This can minimize the distance between the rotating parts of the working box 10 and the connecting part 20 and the universal wheel assembly 50, further improving the sensitivity of the working box 10 in adjusting to the swing of the lawnmower. This makes the universal wheel assembly 50 and the roller brush assembly 30 more flexible in following the undulations of the grass, giving the grass collector a stronger ability to adapt to different road surfaces.

[0115] Example 3:

[0116] The caster wheel assembly 50 includes a rotating base 501 and a roller body 502. The rotating base 501 is fixedly connected to the work box 10, and a bearing for relative rotation can be provided inside the rotating base 501; the roller body 502 is rotatably connected to the rotating base 501, and the roller body 502 can be rotatably connected to the work box 10 through the rotating base 501.

[0117] The rotating base 501 has two movable parts, one fixedly connected to the work box 10 and the other connected to the roller body 502. The roller body 502 can rotate relative to the work box 10 under the action of the bearing, thus enabling the roller body 502 to provide omnidirectional adjustable support for the work box 10. When the traction device moves the grass collector, the work box 10 can swing relative to the traction device under the action of the connecting piece 20. Simultaneously, the roller body 502 can rotate relative to the work box 10 via the rotating base 501. This allows the work box 10 to adapt to the undulating changes of the surface to be cleaned as it moves with the traction device, maintaining a stable distance from the surface. This ensures that the distance between the roller brush assembly 30 and the surface to be cleaned remains relatively stable, helping the roller brush assembly 30 to pick up grass clippings, fallen leaves, branches, and other debris from the undulating surface to be cleaned.

[0118] Example 4:

[0119] In the length direction X of the work box 10, the caster wheel assembly 50 is located on at least one side of the roller brush assembly 30.

[0120] When the caster wheel assembly 50 is located on one side of the roller brush assembly 30 along the length X of the work box 10, that is, the caster wheel assembly 50 is simultaneously on the front or rear side of the roller brush assembly 30. When the caster wheel assembly 50 is simultaneously on the front side of the roller brush assembly 30, when the lawnmower drives the grass collector to move on the grass and encounters undulations, the caster wheel assembly 50 will reach the undulating position of the grass before the roller brush assembly 30. When the caster wheel assembly 50 is simultaneously on the rear side of the roller brush assembly 30, when the lawnmower drives the grass collector to move on the grass and encounters undulations, the roller brush assembly 30 will reach the undulating position of the grass before the caster wheel assembly 50. In both of the above implementation methods, the caster wheel assembly 50 can adjust its posture to follow the undulations of the grass, achieving omnidirectional adjustment and support for the work box 10. The work box 10 swings with the caster wheel assembly 50 via the connector 20, and the roller brush assembly 30 cleans the undulating areas of the grass. The grass collector automatically adjusts the distance between the roller brush assembly 30 and the grass according to the undulations of the grass, greatly improving the flexibility of the grass collector during the movement of the traction equipment. This solves the problem of cumbersome operation caused by manually adjusting the lifting mechanism. Furthermore, by further setting the second connecting part 202 of the connector 20 and the caster wheel assembly 50 simultaneously in the work box... On the 10, the distance between the rotational position of the work box 10 and the connecting part 20 and the vertical projection of the universal wheel assembly 50 can be reduced, thereby improving the sensitivity of the work box 10 in following the swing adjustment of the lawnmower. The roller brush assembly 30 on the work box 10 and the grass where the universal wheel assembly 50 is located should be kept as consistent as possible. The roller brush assembly 30 can follow the universal wheel assembly 50 in a timely manner according to the undulation of the grass, so that the two have a high degree of consistency in following the movement on the grass. This prevents the roller brush assembly 30 from being worn too much or unable to effectively roll up the grass material due to the large difference in the undulation of the grass where the roller brush assembly 30 and the universal wheel assembly 50 are located.

[0121] When the caster wheel assembly 50 is located on both sides of the work box 10 along its length X, i.e., simultaneously on the front and rear sides of the roller brush assembly 30, the lawnmower moves the grass collector across the grass and encounters undulating terrain. The caster wheel assembly 50 located in front of the roller brush assembly 30 moves onto the undulating terrain first, while the caster wheel assembly 50 located behind the roller brush assembly 30 moves onto the undulating terrain later. The caster wheel assemblies 50 on the front and rear sides of the roller brush assembly 30 work together to adjust their posture to follow the undulating terrain, achieving omnidirectional adjustment and support for the work box 10. The work box 10 swings with the caster wheel assembly 50 via the connecting piece 20. The roller brush assembly 30 sweeps the undulating terrain, and the grass collector automatically adjusts the distance between the roller brush assembly 30 and the grass according to the changes in grass undulation, greatly improving the flexibility of the grass collector during the movement of the traction device and solving the problems existing due to manual adjustment of the lifting mechanism. The problem of cumbersome operation is addressed by further arranging the second connecting part 202 of the connector 20 and the universal wheel assembly 50 simultaneously on the work box 10. This reduces the distance between the rotational position of the work box 10 and the connector 20 and the vertical projection of the universal wheel assembly 50, improving the sensitivity of the work box 10 in following the swing adjustment of the lawnmower. The brush assembly 30 on the work box 10 and the grass where the universal wheel assembly 50 is located are kept as consistent as possible. The brush assembly 30 can follow the universal wheel assembly 50 in a timely manner according to the undulation of the grass, so that the two have a high degree of consistency in movement on the grass. This prevents the problem of excessive wear of the brush assembly 30 or inability to effectively roll up the grass material due to the large difference in the undulation of the grass where the brush assembly 30 and the universal wheel assembly 50 are located.

[0122] Example 5:

[0123] In the width direction Y of the work box 10, the caster wheel assembly 50 may also be located on at least one side of the roller brush assembly 30.

[0124] When the caster wheel assembly 50 is located on one side of the roller brush assembly 30 in the width direction Y of the work box 10, that is, the caster wheel assembly 50 is simultaneously on the left or right side of the roller brush assembly 30. When the caster wheel assembly 50 is simultaneously on the left side of the roller brush assembly 30, the traction device drives the grass collector to move on the surface to be cleaned. When encountering uneven ground, the roller brush assembly 30 can clean the surface to be cleaned on the right side of the caster wheel assembly 50. When the caster wheel assembly 50 is simultaneously on the right side of the roller brush assembly 30, the traction device drives the grass collector to move on the surface to be cleaned. When encountering uneven ground, the roller brush assembly 30 can clean the surface to be cleaned on the left side of the caster wheel assembly 50. In both of the above embodiments, the caster assembly 50 can adjust its posture to follow the undulating ground, achieving omnidirectional adjustment and support for the work box 10. The work box 10 swings with the caster assembly 50 via the connector 20, and the roller brush assembly 30 sweeps the undulating ground. The grass collector automatically adjusts the distance between the roller brush assembly 30 and the surface to be cleaned according to the changes in the undulation of the surface to be cleaned, greatly improving the flexibility of the grass collector during the movement of the traction equipment. This solves the problem of cumbersome operation caused by manually adjusting the lifting mechanism. Furthermore, by further setting the second connecting part 202 of the connector 20 and the caster assembly 50 simultaneously on the work box 10, the... The distance between the rotational position of the small work box 10 and the connecting piece 20 and the vertical projection of the universal wheel assembly 50 improves the sensitivity of the work box 10 in following the swing adjustment of the traction equipment. The roller brush assembly 30 on the work box 10 and the universal wheel assembly 50 are as consistent as possible on the surface to be cleaned. The roller brush assembly 30 can follow the universal wheel assembly 50 in a timely manner according to the undulation of the surface to be cleaned, so that the two have a high degree of consistency in following the movement on the surface to be cleaned. This prevents the roller brush assembly 30 from wearing too much or failing to effectively roll up the material on the surface to be cleaned due to the large difference in the undulation of the surface to be cleaned between the roller brush assembly 30 and the universal wheel assembly 50.

[0125] When the caster wheel assembly 50 is located on both sides of the roller brush assembly 30 in the width direction Y of the work box 10, that is, the caster wheel assembly 50 is simultaneously on the left and right sides of the roller brush assembly 30. The roller brush assembly 30 is positioned between the left and right caster wheel assemblies 50. When the traction device moves the grass collector across the surface to be cleaned and encounters uneven ground, the caster wheel assemblies 50 on the left and right sides of the roller brush assembly 30 cooperate to adjust their posture to follow the uneven ground, achieving omnidirectional adjustment and support for the work box 10. The work box 10 swings with the caster wheel assembly 50 via the connecting piece 20. The uneven ground between the caster wheel assemblies 50 on both sides of the roller brush assembly 30 is cleaned. The grass collector automatically adjusts the distance between the roller brush assembly 30 and the surface to be cleaned according to the changes in the unevenness of the surface, greatly improving the flexibility of the grass collector during the movement of the traction device. This solves the problem of cumbersome operation caused by manually adjusting the lifting mechanism. Furthermore, by further integrating the connecting piece... The second connecting part 202 of 20 and the universal wheel assembly 50 are simultaneously set on the work box 10. This can reduce the distance between the rotation position of the work box 10 and the connecting part 20 and the projection of the universal wheel assembly 50 in the vertical direction, and improve the sensitivity of the work box 10 to swing and adjust with the traction equipment. The roller brush assembly 30 on the work box 10 and the universal wheel assembly 50 are as consistent as possible on the surface to be cleaned. The roller brush assembly 30 can swing in time with the universal wheel assembly 50 according to the undulation of the surface to be cleaned, so that the two have a high degree of consistency in movement on the surface to be cleaned. This prevents the roller brush assembly 30 from wearing too much or failing to effectively roll up the material on the surface to be cleaned due to the large difference in the undulation of the roller brush assembly 30 and the universal wheel assembly 50.

[0126] Example 6:

[0127] The rotating seat 501 has a first axis a perpendicular to the surface to be cleaned, and the roller body 502 is configured to rotate relative to the work box 10 about the first axis a. The orthogonal projection of the first axis a in the width direction X of the work box 10 is located on the roller brush assembly 30. With the caster assembly 50 positioned on both sides of the roller brush assembly 30 along the width Y direction of the work box 10, the orthographic projection of the first axis a of the rotating seat 501 onto the roller brush assembly 30 in the width X direction of the work box 10 can restrict the arrangement of the roller brush assembly 30 and the caster assembly 50 on the work box 10. When viewed from the left and right sides of the work box 10 in the width Y direction, there is at least a partial overlap between the roller brush assembly 30 and the caster assemblies 50 on the left and right sides. This prevents the caster assembly 50 and the roller brush assembly 30 from being too far apart and completely misaligned in the length X direction of the work box 10. This allows the roller brush assembly 30 to follow the caster assembly 50 up and down along the undulations of the grass in a timely manner, ensuring that the roller brush assembly 30 and the caster assembly 50 have a high degree of consistency in movement. This prevents the roller brush assembly 30 from being worn too much or from being unable to effectively pick up the material on the grass due to the large difference in the undulations of the grass on which the roller brush assembly 30 and the caster assembly 50 are located.

[0128] When the lawnmower moves the grass collector across the grass, the roller body 502 rolls along the ground under the rotational cooperation of the connecting piece 20 and the working box 10, and rotates along the first axis a under the action of the rotating seat 501, realizing the universal adjustment and support of the universal wheel assembly 50 for the working box 10. The working box 10 swings relative to the connecting piece 20. When the working box 10 encounters uneven ground, the roller body 502 changes its own posture through the rotating seat 501 to adapt to the ground changes and supports the swing of the working box 10. Since the roller brush assembly 30 is located between the left and right universal wheel assemblies 50 and there is at least a part of the overlapping area, the roller brush assembly 30 can swing in time with the universal wheel assembly 50 to adapt to the undulation of the grass. The roller brush assembly 30 can sweep the grass between the left and right universal wheel assemblies 50, avoiding the problem that the roller brush assembly 30 cannot swing synchronously according to the undulation of the ground due to misalignment with the universal wheel assembly 50, which would affect the cleaning effect and cleaning quality of the grass collector on the surface to be cleaned.

[0129] The foregoing has provided a detailed description of the grass collector and mowing system provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A grass collector, characterized in that, include: Work box (10); A connector (20) includes a first connecting part (201) and a second connecting part (202). The connector (20) is fixedly connected to the traction device through the first connecting part (201) so that the work box (10) can move with the traction device. The second connecting part (202) is located on the work box (10), and the connector (20) is rotatably connected to the work box (10) through the second connecting part (202). The roller brush assembly (30) is rotatably disposed inside the work box (10) and is used to move with the work box (10) and sweep away debris on the surface to be cleaned; A collection box (40), connected to the work box (10), is used to hold debris on the surface to be cleaned; A caster wheel assembly (50) is provided at the bottom of the work box (10) to support the work box (10).

2. The grass collector according to claim 1, characterized in that, The orthographic projection of the second connecting part (202) in the vertical direction is located within the orthographic projection of the work box (10) in the vertical direction.

3. The grass collector according to claim 2, characterized in that, The second connecting part (202) is connected to the work box (10) by a pin or hinge.

4. The grass collector according to claim 3, characterized in that, The work box (10) is provided with a first connecting hole (1021), and the second connecting part (202) is provided with a second connecting hole (2021). The first connecting hole (1021) and the second connecting hole (2021) are coaxially arranged. A pivot (90) is inserted into the first connecting hole (1021) and the second connecting hole (2021) to rotatably connect the work box (10) and the second connecting part (202).

5. The grass collector according to claim 1, characterized in that, The caster wheel assembly (50) includes: The rotating seat (501) is fixedly connected to the work box (10); The roller body (502) is rotatably connected to the rotating seat (501).

6. The grass collector according to claim 5, characterized in that, The rotating seat (501) has a first axis (a) perpendicular to the surface to be cleaned, and the roller body (502) is configured to rotate relative to the work box (10) about the first axis (a), the orthographic projection of the first axis (a) in the width direction of the work box (10) being located on the roller brush assembly (30).

7. The grass collector according to claim 1, characterized in that, The work box (10) has a cavity (101) inside, the cavity (101) for accommodating the roller brush assembly (30), the roller brush assembly (30) being rotatable within the cavity (101); and / or, The grass collector also includes a first drive assembly (60), which is disposed in the work box (10) and is used to drive the roller brush assembly (30) to rotate inside the machine cavity (101).

8. The grass collector according to claim 7, characterized in that, The first driving component (60) includes: The first drive motor (601) is mounted on the work box (10); A drive gear (602) is disposed on the work box (10), and the drive gear (602) is mounted on the first drive motor (601); A transmission gear (604) is mounted on the work box (10) and meshes with the drive gear (602); A driven gear (603) is disposed on the work box (10) and meshes with the transmission gear (604). The driven gear (603) is connected to the roller brush assembly (30) to drive the roller brush assembly (30) to run.

9. The grass collector according to claim 1, characterized in that, The work box (10) has a front side and a rear side along the length direction. The work box (10) is configured to be movable along the length direction. The connector (20) is located on the front side of the work box (10), and the collection box (40) is located on the rear side of the work box (10). And / or, The collection box (40) includes a collection bracket (401) and a collection bag (402), and the collection bracket (401) is rotatably disposed on the rear side of the work box (10).

10. The grass collector according to claim 9, characterized in that, The grass collector also includes a second drive assembly (70), which is disposed on the work box (10) and is used to drive the collection bracket (401) to open and close relative to the work box (10).

11. The grass collector according to claim 1, characterized in that, The grass collector also includes a control component (80), which is at least capable of controlling the start and stop of the roller brush assembly (30) and / or the opening and closing of the collection box (40).

12. A lawn mowing system, characterized in that, Includes a grass collector and a mowing robot as described in any one of claims 1 to 11, wherein the mowing robot includes a body and the body is fixedly connected to the connector (20) of the grass collector.

Images