Grass collecting device and walking equipment

Abstract

The invention provides a grass collecting device and walking equipment. The grass collecting device comprises a main body, a collecting part and a supporting part, and the collecting part is rotatably connected with the main body through a first pivot; the supporting part is rotatably connected with the collecting part through a second pivot; when the grass collecting device moves in the first direction, the collecting component and the supporting component can synchronously rotate around the first pivot within a preset angle range; when the grass collecting device moves in the second direction, the supporting component can rotate around the second pivot, and the first direction is opposite to the second direction. By the adoption of the grass collecting device, the situation that in the backward or forward process of the grass collecting device, when the supporting component is clamped by the lawn, backward or forward resistance of the grass collecting device is increased easily, and the lawn is damaged is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of lawn mowing machinery, and in particular to a grass collecting device and a walking device. Background Art

[0002] The grass collecting device is used to collect leaves, grass clippings cut by mowing equipment and other debris. The grass collecting device includes a main body, a collecting component and a supporting component. However, when the supporting component of the existing grass collecting device is stuck by the grass during the process of moving backward or forward, it is easy to increase the resistance of the grass collecting device to move backward or forward and damage the lawn. Summary of the invention

[0003] The present application provides a grass collecting device and a walking device to solve the technical problem that when the supporting component of the existing grass collecting device is stuck by the grass during the process of retreating or advancing, it is easy to cause the resistance of the grass collecting device to retreat or advance to increase and damage the lawn.

[0004] In a first aspect, the present application provides a grass collecting device, comprising a main body, a collecting component and a supporting component, wherein the collecting component is rotatably connected to the main body via a first pivot; the supporting component is rotatably connected to the collecting component via a second pivot; when the grass collecting device moves along a first direction, the collecting component and the supporting component can rotate synchronously around the first pivot within a preset angle, and the supporting component does not rotate around the second pivot; when the grass collecting device moves along a second direction, the supporting component can rotate around the second pivot, and the first direction is opposite to the second direction.

[0005] In combination with the first aspect, in certain implementations of the first aspect, the collecting component includes a bracket and a roller brush, one end of the bracket is rotatably connected to the main body via the first pivot, and the other end of the bracket is rotatably connected to the roller brush via a third pivot; the supporting component includes a swing arm and a roller, one end of the swing arm is rotatably connected to the bracket via the second pivot, and the other end of the swing arm is rotatably connected to the roller via a fourth pivot.

[0006] In combination with the first aspect, in certain implementations of the first aspect, the swing arm is located on a side of the bracket facing away from the roller brush.

[0007] In combination with the first aspect, in certain implementations of the first aspect, along the first direction, a rotation axis of the fourth pivot is located between a rotation axis of the first pivot and a rotation axis of the third pivot.

[0008] In combination with the first aspect, in certain implementations of the first aspect, in a cross section parallel to the first direction, a line connecting the axis center of the first pivot and the axis center of the third pivot is a first line, a line connecting the axis center of the second pivot and the axis center of the fourth pivot is a second line, and the length of the first line is greater than the length of the second line.

[0009] In combination with the first aspect, in certain implementations of the first aspect, the bracket includes a main body and an extension portion, the extension portion is bent and connected to one end of the main body, the end of the extension portion facing away from the main body portion can be rotatably connected to the main body, the roller brush can be rotatably connected to the end of the main body portion facing away from the extension portion, and one end of the swing arm can be rotatably connected to the main body and is located on the same side of the main body as the extension portion.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the grass collecting device also includes a driving member, which is transmission-connected to the roller brush and is used to drive the roller brush to rotate relative to the main body, the driving member is installed on the inner side wall of the end of the main body close to the extension portion, a mounting protrusion is provided in the middle of the main body, and the swing arm is rotatably connected to the mounting protrusion.

[0011] In combination with the first aspect, in certain implementations of the first aspect, when the grass collecting device is in a stationary state, the swing arm abuts against the bracket.

[0012] In combination with the first aspect, in some implementations of the first aspect, the grass collecting device further includes an elastic member, one end of the elastic member is connected to the bracket, and the other end of the elastic member is connected to the swing arm.

[0013] In combination with the first aspect, in certain implementations of the first aspect, the bracket is provided with a first mounting structure, the swing arm is provided with a second mounting structure, and the two ends of the elastic member are respectively connected to the first mounting structure and the second mounting structure; in a cross section parallel to the first direction, a line connecting the center of the first mounting structure and the center of the second mounting structure is a third line, a line connecting the axis center of the second pivot and the axis center of the fourth pivot is a second line, and an inclination direction of the third line is opposite to an inclination direction of the second line.

[0014] In combination with the first aspect, in some implementations of the first aspect, the elastic member is configured as a tension spring, a compression spring, a torsion spring, a coil spring or a gas spring.

[0015] In combination with the first aspect, in some implementations of the first aspect, the swing arm includes two swing rods, the two swing rods are rotatably connected to the bracket, and the roller is rotatably connected between the two swing rods.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the swing arm also includes a connecting rod, which is bent and connected between the two swing arms, the connecting rod is rotatably connected to the bracket, and the end of each swing arm facing away from the connecting rod is rotatably connected to the roller.

[0017] In combination with the first aspect, in certain implementations of the first aspect, a first protrusion is provided on the side of the connecting rod close to the roller brush, a second protrusion is provided on the side of the rocker arm away from the roller brush, the first protrusion is rotatably connected to the bracket via the second pivot, and the second protrusion is rotatably connected to the drum via the fourth pivot.

[0018] In combination with the first aspect, in some implementations of the first aspect, the swing arm further includes a reinforcing rib, which connects a side wall of the first protrusion facing the connecting rod and a side wall of the swing arm facing away from the bracket.

[0019] In combination with the first aspect, in certain implementations of the first aspect, the collecting component includes a bracket and a roller brush, one end of the bracket is rotatably connected to the main body via the first pivot, and the other end of the bracket is rotatably connected to the roller brush via a third pivot; the supporting component is configured as a roller, and the roller is rotatably connected to the bracket via a second pivot and is configured as a D-shaped structure.

[0020] In combination with the first aspect, in certain implementations of the first aspect, the roller includes a first surface and a second surface connected to both ends of the first surface, and the second surface is arranged to protrude outward relative to the first surface; when the grass collecting device moves along the first direction, the first surface may be located on the side of the second surface close to the roller brush in the first direction; when the grass collecting device moves along the second direction, the first surface may be located on the side of the second surface close to the grass in the height direction of the grass collecting device.

[0021] In combination with the first aspect, in certain implementations of the first aspect, the drum is rotatably connected to the bracket via the second pivot at a middle portion close to the first surface.

[0022] In combination with the first aspect, in certain implementations of the first aspect, the roller is provided as one, and both ends of the roller are rotatably connected to two side walls of the bracket in the width direction of the grass collecting device; or, the roller is provided as two, the two rollers are provided independently of each other, and are rotatably connected to two side walls of the bracket in the width direction of the grass collecting device; or, the roller is provided as two, the supporting component further includes a supporting connecting rod, the supporting connecting rod is provided between the two rollers and fixedly connected to the two rollers, and the distance between the supporting connecting rod and the grass is greater than the distance between the roller and the grass.

[0023] In combination with the first aspect, in certain implementations of the first aspect, the second pivot is fixedly arranged relative to the bracket, one of the roller and the second pivot is provided with a limiting groove, and the other of the roller and the second pivot is provided with a limiting protrusion, and the limiting protrusion can be rotatably limited in the limiting groove to limit the rotation angle of the roller relative to the bracket.

[0024] In combination with the first aspect, in certain implementations of the first aspect, the limiting groove includes a first groove side wall and a second groove side wall that are oppositely arranged; when the grass collecting device moves along the first direction, the limiting protrusion can stop the first groove side wall; when the grass collecting device moves along the second direction, the limiting protrusion can stop the second groove side wall.

[0025] In a second aspect, the present application provides a walking device, comprising a machine body and the grass collecting device as described above, wherein the grass collecting device is connected to the rear of the machine body.

[0026] The grass collecting device and walking equipment provided by the present application are based on the arrangement that when the grass collecting device moves along the first direction, the collecting component and the supporting component can rotate synchronously around the first pivot within a preset angle, and the supporting component does not rotate around the second pivot; when the grass collecting device moves along the second direction, the supporting component can rotate around the second pivot, and the first direction is opposite to the second direction. On the one hand, the arrangement of the first pivot and the second pivot can reduce the resistance of the walking equipment moving forward or backward on the grass, prevent the collecting component from penetrating into the grass roots, reduce the resistance of the collecting component, and improve the grass collecting effect, and enable the supporting component and the collecting component to smoothly pass through obstacles on the grass, improve the obstacle crossing performance of the grass collecting device, and reduce damage to the grass; on the other hand, during the movement of the grass collecting device along the second direction, the supporting component can rotate around the second pivot so that the center of gravity of the grass collecting device is lowered relative to the ground contact surface with the supporting component, thereby improving the grip of the grass collecting device, avoiding the problem of overturning of the grass collecting device, and further improving the stability and safety of the grass collecting device; on the other hand, the grass collecting device can control the working height of the roller brush through the supporting component to improve the grass collecting effect of the grass collecting device under different grasses. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of a partial structure of a grass collecting device provided in the first embodiment of the present application on a grass field.

[0028] Figure 2 yes Figure 1 A side view of a partial structure of a grass collecting device in FIG.

[0029] Figure 3 yes Figure 1 The grass collecting device in the figure omits the main body of the structure.

[0030] Figure 4 yes Figure 3 The grass collecting device in the figure omits the exploded diagram of the main body.

[0031] Figure 5 yes Figure 2 Cross-sectional view of the grass collecting device in FIG.

[0032] Figure 6 It is a structural schematic diagram of a grass collecting device provided in the second embodiment of the present application.

[0033] Figure 7 yes Figure 6 Schematic diagram of the structure of the partial structure of the grass collecting device on the grass.

[0034] Figure 8 yes Figure 6 An exploded view of the partial structure of the grass collecting device.

[0035] Fig. 9 yes Figure 6 Cross-sectional view of the grass collecting device in FIG.

[0036] Fig.10 yes Fig. 9 An enlarged view of part I of the grass collecting device.

[0037] Description of the main component symbols: Grassland-1a; Grass plant-2a; Grass collecting device-100; Main body-10; Collecting component-20; Bracket-21; Support arm-210; Main body-211; Extension part-212; Mounting protrusion-213; First mounting structure-215; Bearing part-216; Guide plate-220; Protruding rib-221; Roller brush-23; Roller-231; Bristles-232; Driving member-24; Support component-30; Swing arm-31; Swing rod-311; First protrusion-3111; First positioning groove-3112; Second mounting structure-315; Connecting rod-312; Second protrusion-3121; Second positioning groove-3122; Outer convex surface-3123; Reinforcing rib-313; Arc surface-3131; Roller-32; First surface-3201; Second surface-3202 ; The third surface -3203; The supporting protrusion -321; The mounting groove -3210; The limiting protrusion -322; The first positioning seat -331; The first locking piece -332; The second positioning seat -351; The second locking piece -352; The supporting link -36; The first outer wall -361; The second outer wall -362; The first pivot -51; The second pivot -52; The limiting groove -521; The first groove side wall -5211; The second groove side wall -5212; The third pivot -53; The fourth pivot -54; The elastic member -60; The elastic body -61; The hook ring -62; The fixing member -63; The fixing part -631; The limiting part -632; The grass collecting box -70; The turning mechanism -90; The first connecting line -L1; The second connecting line -L2; The third connecting line -L3; The first direction -X1; The second direction -X2; The width direction -Y; The height direction -Z. DETAILED DESCRIPTION

[0038] The following embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0039] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be detachably connected or non-detachably connected; it can be directly connected or indirectly connected through an intermediate medium. Among them, "fixed connection" can be connected to each other and the relative position relationship after connection remains unchanged. "Rotational connection" can be connected to each other and can rotate relative to each other after connection. The term "integrated molding" means that in the process of forming one of the multiple components, the component is connected to other components, and there is no need to connect the two components together by reprocessing (such as bonding, welding, snap connection, screw connection). The orientation terms mentioned in the embodiments of the present application, such as "top", "bottom", "inside", "outside", "side", etc., are only reference directions of the accompanying drawings. Therefore, the orientation terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0040] Please also read Figure 1 and Figure 2 , Figure 1 1 is a schematic structural diagram of a partial structure of a grass collecting device 100 provided in the first embodiment of the present application on a grass field 1a; Figure 2 yes Figure 1 1 is a side view of a partial structure of a grass collecting device 100. The grass collecting device 100 includes a main body 10, a collecting component 20 and a supporting component 30. The collecting component 20 is rotatably connected to the main body 10 via a first pivot 51. The supporting component 30 is rotatably connected to the collecting component 20 via a second pivot 52. When the grass collecting device 100 moves along a first direction X1, the collecting component 20 and the supporting component 30 can rotate synchronously around the first pivot 51. When the grass collecting device 100 moves along a second direction X2, the supporting component 30 can rotate around the second pivot 52 so that the distance between the second pivot 52 and the first pivot 51 is reduced, and the distance between the second pivot 52 and the ground contact surface of the supporting component 30 is reduced, and the first direction X1 is opposite to the second direction X2.

[0041] The grass collecting device 100 provided in the embodiment of the present application is based on the arrangement that when the grass collecting device 100 moves along the first direction X1, the collecting component 20 and the supporting component 30 can rotate synchronously around the first pivot 51 within a preset angle, and the supporting component does not rotate around the second pivot; when the grass collecting device 100 moves along the second direction X2, the supporting component 30 can rotate around the second pivot 52, and the first direction X1 is opposite to the second direction X2. On the one hand, the arrangement of the first pivot 51 and the second pivot 52 can reduce the resistance of the walking device to move forward or backward on the grass 1a, and enable the supporting component 30 and the collecting component 20 to smoothly pass through obstacles on the grass 1a. On the other hand, the grass collecting device 100 can move in the second direction X2, and the support component 30 can rotate around the second pivot 52, so that the center of gravity of the grass collecting device 100 is lowered relative to the ground contact surface with the support component 30, thereby improving the grip of the grass collecting device 100 and avoiding the problem of overturning of the grass collecting device 100, thereby improving the driving stability and safety of the grass collecting device 100; on the other hand, the grass collecting device 100 can control the working height of the roller brush 23 through the support component 30, so as to improve the grass collecting effect of the grass collecting device 100 under different grasses 1a.

[0042] It should be noted that Figure 1 The purpose is only to schematically describe the arrangement of the grass collecting device 100, and is not to specifically limit the connection position, connection relationship and specific structure of each component. Figure 1 The structure of the grass collecting device 100 is only shown in the embodiment of the present application, and does not constitute a specific limitation on the grass collecting device 100. In other embodiments of the present application, the grass collecting device 100 may include Figure 1 More or fewer components, or combinations of certain components, or different components, for example, the grass collecting device 100 may also include but is not limited to a detection mechanism. The detection mechanism is used to detect grass collecting state parameters of the grass collecting device. Figure 2 , Figure 3 and Figure 4 , Figure 3 yes Figure 1 The grass collecting device 100 is a schematic structural diagram in which the main body 10 is omitted;

[0043] Figure 4 yes Figure 3The grass collecting device 100 in the embodiment omits the exploded schematic diagram of the main body 10. In this embodiment, the collecting component 20 includes a bracket 21 and a roller brush 23. One end of the bracket 21 is rotatably connected to the main body 10 through a first pivot 51, and the other end of the bracket 21 is rotatably connected to the roller brush 23 through a third pivot 53. The supporting component 30 includes a swing arm 31 and a roller 32. One end of the swing arm 31 is rotatably connected to the bracket 21 through a second pivot 52, and the other end of the swing arm 31 is rotatably connected to the roller 32 through a fourth pivot 54. It can be understood that when the grass collecting device 100 moves along the first direction X1, the bracket 21 and the swing arm 31 can only rotate synchronously around the first pivot 51. When the grass collecting device 100 moves along the second direction X2, the bracket 21 together with the roller brush 23 can rotate around the first pivot 51, and the swing arm 31 together with the roller 32 can rotate around the second pivot 52, and the rotation direction of the bracket 21 is opposite to the rotation direction of the swing arm 31, thereby avoiding the problem of the roller brush 23 piercing into the grass roots when the grass collecting device 100 moves backward or forward, reducing the resistance of the roller brush 23, and improving the grass collecting effect, so that the roller 32 and the roller brush 23 installed on the bracket 21 can pass through obstacles smoothly, thereby improving the obstacle crossing performance of the grass collecting device 100 and reducing damage to the grass.

[0044] For the accuracy of description, please refer to the directions in this article. Figure 1 , Figure 2 and Figure 3 For reference, the term "length direction" may refer to the length direction of the mowing device, i.e. Figure 1 The longitudinal direction of the grass collecting device 100 includes the forward direction and the backward direction. The term "width direction Y" refers to the direction parallel to the rotation axis of the roller 32 or the rotation axis of the roller brush 23, that is, Figure 3 The term "height direction Z" refers to the direction in which the support plane of the grass collecting device 100 points to the highest protruding part of the grass collecting device 100, that is, Figure 1 The up and down directions (where the positive direction of the Z axis is upward). Among them, the length direction, the width direction Y and the height direction Z together constitute the three orthogonal directions of the grass collecting device 100. For the convenience of description, the up and down, left and right, front and back directions in this application are relative positions and do not constitute a limitation on the implementation. The length direction, width direction Y and height direction Z of the grass collecting device 100 can be customized according to the specific structure of the product and the perspective of the drawings, and this application does not make specific limitations. The tail refers to the rear end portion of the grass collecting device 100 along the length direction. The ground contact surface of the support component 30 refers to the contact surface between the bottom end surface of the support component 30 and the grass plant 2a on the lawn 1a.

[0045] Exemplarily, in the present embodiment, the swing arm 31 is located on the side of the bracket 21 facing away from the roller brush 23. Specifically, along the first direction X1, the swing arm 31 is located on the front side of the bracket 21. The first direction X1 is the forward direction of the grass collecting device 100, and the second direction X2 is the backward direction of the grass collecting device 100. It can be understood that when the swing arm 31 is arranged on the front side of the bracket 21, if the roller 32 and the roller brush 23 are directly rotatably connected to the same bracket 21, and the roller 32 is configured as a cylindrical roller, the roller 32 is easily stuck by the grass 1a during the backward movement of the grass collecting device 100, for example, the roller 32 is stuck by the grass roots of the grass plants 2a on the grass 1a; or, the roller 32 is stuck by stones or other obstacles on the grass 1a, thereby increasing the backward resistance of the walking device, and the roller brush 23 will penetrate into the grass roots and damage the grass plants 2a (i.e., the lawn) on the grass 1a. In the embodiment of the present application, the roller 32 is swingably connected to the front side of the bracket 21 through the swing arm 31. On the one hand, it is avoided that the swing arm 31 is set on the rear side of the roller brush 23 and the swing arm 31 affects the grass collecting function on the grass collecting path of the roller brush 23; on the other hand, during the retreat of the grass collecting device 100, the roller 32 will be subjected to resistance in the forward direction (i.e., along the forward direction), and drive the swing arm 31 to swing forward and upward around the rotation axis of the swing arm 31 under the action of the resistance component force, and the force transmitted to the bracket 21 by the swing arm 31 drives the bracket 21 to swing backward and upward relative to the main body 10, thereby avoiding the problem that when the grass collecting device 100 retreats, when the roller 32 is stuck by the grass 1a, the backward resistance of the walking device increases, and the roller brush 23 penetrates into the grass roots and damages the lawn, thereby enabling the roller 32 and the roller brush 23 installed on the bracket 21 to pass through obstacles smoothly, thereby improving the obstacle crossing performance of the grass collecting device 100, and reducing the resistance of the roller brush 23 and the damage of the roller brush 23 to the grass. When the grass collecting device 100 moves forward, the roller 32 will encounter resistance in the backward direction (i.e., the backward direction), and drive the swing arm 31 and the bracket 21 abutting against the swing arm 31 to swing backward and upward around the rotation axis of the swing arm 31 under the action of the resistance component force, thereby achieving the lifting of the roller 32 and the roller brush 23, avoiding the problem of the roller brush 23 contacting too deep a lawn position and scraping the grass, thereby reducing the damage of the roller brush 23 to the grass, and reducing the resistance of the roller brush 23, thereby reducing the probability of overloading and stalling of the driving member 24.

[0046] It can be understood that when the swing arm 31 is disposed at the rear side of the bracket 21, if the roller 32 and the roller brush 23 are directly rotatably connected to the same bracket 21, and the roller 32 is configured as a cylindrical roller, the roller 32 is easily stuck by the grass 1a during the forward movement of the grass collecting device 100, thereby increasing the forward resistance of the walking device, and the roller brush 23 may penetrate into the grass roots and damage the lawn. In some embodiments, along the first direction X1, the swing arm 31 is located at the rear side of the bracket 21. Therefore, the swing arm 31 is arranged at the rear side of the bracket 21. On the one hand, during the forward movement of the grass collecting device 100, the roller 32 will be subjected to resistance in the backward direction, and the swing arm 31 will be driven to swing backward and upward around the rotation axis of the swing arm 31 under the action of the resistance component force, and the force transmitted by the swing arm 31 to the bracket 21 drives the bracket 21 to swing forward and upward relative to the main body 10, thereby avoiding the problem that when the roller 32 is stuck by the grass 1a during the forward movement of the walking device, the forward resistance of the walking device increases, and the roller brush 23 penetrates into the grass roots and damages the lawn, thereby allowing the roller 32 and the roller brush 23 installed on the bracket 21 to pass through obstacles smoothly, improving the obstacle crossing performance of the grass collecting device 100, and reducing the resistance of the roller brush 23 and the damage of the roller brush 23 to the grass. In this embodiment, the swing arm 31 is arranged below the grass collecting path of the roller brush 23, thereby avoiding the problem that the swing arm 31 affects the grass collecting function on the grass collecting path of the roller brush 23. When the grass collecting device 100 moves backward, the roller 32 will encounter resistance in the forward direction, and drive the swing arm 31 and the bracket 21 abutting against the swing arm 31 to swing forward and upward around the rotation axis of the swing arm 31 under the action of the resistance component force, thereby achieving the lifting of the roller 32 and the roller brush 23, avoiding the problem of the roller brush 23 contacting too deep a lawn position and scraping the grass, thereby reducing the damage of the roller brush 23 to the grass, and reducing the resistance of the roller brush 23, thereby reducing the probability of overloading and stalling of the driving member 24.

[0047] For example, in this embodiment, along the first direction X1, the rotation axis of the fourth pivot 54 is located between the rotation axis of the first pivot 51 and the rotation axis of the third pivot 53. Therefore, based on the rotation axis of the fourth pivot 54 being located between the rotation axis of the first pivot 51 and the rotation axis of the third pivot 53, the force transmitted from the swing arm 31 to the bracket 21 can be more used to drive the bracket 21 to swing backward and upward relative to the main body 10, so that the roller 32 and the roller brush 23 installed on the bracket 21 can smoothly pass through obstacles, improve the obstacle crossing performance of the grass collecting device 100, and reduce damage to the grass. Of course, in some embodiments, the rotation axis of the roller 32 is aligned with the rotation axis of the bracket 21 in the height direction Z of the grass collecting device 100; or, the rotation axis of the fourth pivot 54 is located in front of the rotation axis of the first pivot 51 in the forward direction of the grass collecting device 100, and is close to the rotation axis of the fourth pivot 54, which is not specifically limited in the embodiment of the present application.

[0048] For example, in this embodiment, in a cross section parallel to the first direction X1, the line connecting the axis of the first pivot 51 and the axis of the third pivot 53 is the first line L1, the line connecting the axis of the second pivot 52 and the axis of the fourth pivot 54 is the second line L2, and the length of the first line L1 is greater than the length of the second line L2. Therefore, based on the relatively long force arm of the connection between the bracket 21 and the main body 10 and the roller brush 23, the force arm of the two connection points of the swing arm 31 and the bracket 21 and the roller 32 is relatively short, so that the bracket 21 can smoothly pass through obstacles together with the roller brush installed on the bracket 21 by rotating a small angle relative to the main body 10, saving the space required for the bracket 21 to swing relative to the main body 10, improving the compactness of the overall structure of the grass collecting device 100, and avoiding the problem that the swing arm 31 and the bracket 21 are reset under the action of gravity due to the excessive opening angle of the swing arm 31 and the bracket 21, resulting in a large collision force.

[0049] See also Figure 4 It should be noted that the term "axis" refers to the rotation center point of the rotating element, wherein the rotation center point is located on the rotation axis of the rotating element. For example, in the embodiment of the present application, the axis center of the first pivot 51 can be a position point passing through the central axis of the first pivot 51 and located in a cross section perpendicular to the central axis of the first pivot 51; the axis center of the second pivot 52 can be a position point passing through the central axis of the second pivot 52 and located in a cross section perpendicular to the central axis of the second pivot 52; the axis center of the third pivot 53 can be a position point passing through the central axis of the third pivot 53 and located in a cross section perpendicular to the central axis of the third pivot 53; the fourth pivot 54 is a position point passing through the central axis of the fourth pivot 54 and located in a cross section perpendicular to the central axis of the fourth pivot 54.

[0050] The bracket 21 includes a main body 211 and an extension 212. The extension 212 is bent and connected to one end of the main body 211, and the end of the extension 212 facing away from the main body 211 is rotatably connected to the main body 10, the roller brush 23 is rotatably connected to the end of the main body 211 facing away from the extension 212, and one end of the swing arm 31 is rotatably connected to the main body 211 and is located on the same side of the main body 211 as the extension 212. Therefore, on the one hand, based on the setting of the extension portion 212 being bent and connected to one end of the main body 211, so that the bracket 21 is roughly L-shaped, when the bracket 21 is subjected to external force, the main body 211 and the extension portion 212 can disperse the stress, thereby improving the stability and supporting force of the bracket 21, and allowing the bracket 21 to have a larger swing range, thereby improving the grass collecting effect of the roller brush 23; on the other hand, based on the fact that the swing arm 31 and the extension portion 212 are located on the same side of the main body 211, the swing arm 31 can more effectively utilize space, reduce the occupied area, and avoid the problem of movement interference between the rotatable part of the swing arm 31 and the rotatable bracket 21, thereby improving the stability of the grass collecting device 100 and improving the compactness of the overall structure of the grass collecting device 100. Therefore, on the one hand, the setting of the mounting protrusion 213 can avoid the problem of motion interference between the rotatable part of the swing arm 31 and the rotatable roller 32 and the rotatable roller brush 23, thereby improving the stability of the grass collecting device 100 and improving the compactness of the overall structure of the grass collecting device 100; on the other hand, the driving member 24 can limit the maximum swing angle of the swing arm 31 relative to the bracket 21, and make the roller 32 installed on the swing arm 31 still able to contact the ground under the action of gravity, and make the roller brush 23 not too high from the ground to affect the grass collecting effect, and not too low from the ground to sink into the grass roots, so as to prevent the roller brush 23 from scraping the grass.

[0051] The grass collecting device 100 further includes a driving member 24. The driving member 24 is connected to the roller brush 23 in a transmission manner and is used to drive the roller brush 23 to rotate relative to the main body 211. The driving member 24 is installed on the inner side wall of the end of the main body 211 close to the extension portion 212, and a mounting protrusion 213 is provided in the middle of the main body 211. The swing arm 31 is rotatably connected to the mounting protrusion 213. Therefore, on the one hand, the installation of the mounting protrusion 213 can avoid the problem of motion interference between the rotatable part of the swing arm 31 and the rotatable roller 32 and the rotatable roller brush 23, thereby improving the stability of the grass collecting device 100 and improving the compactness of the overall structure of the grass collecting device 100; on the other hand, the driving member 24 can limit the maximum swing angle of the swing arm 31 relative to the bracket 21, and make the roller 32 installed on the swing arm 31 still able to contact the ground under the action of gravity, and make the roller brush 23 not too high from the ground to affect the grass collecting effect, and not too low from the ground to sink into the grass roots, so as to prevent the roller brush 23 from scraping the grass. In other words, the supporting component 30 can only rotate around the second pivot 52 by a preset angle.

[0052] Please refer again Figure 2 When the grass collecting device 100 is in a stationary state, the swing arm 31 abuts against the bracket 21. Therefore, when the grass collecting device 100 is in a stationary state, the swing arm 31 can abut against the bracket 21 under the action of gravity, thereby avoiding the problem of collision between the swing arm 31 and the bracket 21 during the forward or backward movement of the grass collecting device 100, thereby improving the stability and safety of the grass collecting device 100.

[0053] In some embodiments, the grass collecting device 100 further includes an elastic member 60. One end of the elastic member 60 is connected to the bracket 21, and the other end of the elastic member 60 is connected to the swing arm 31. Therefore, based on the provision of the elastic member 60, the elastic member 60 is connected between the bracket 21 and the swing arm 31, so that the elastic member 60 can clamp the swing arm 31 to the bracket 21 through the elastic force generated by the elastic member 60, thereby reducing the rigid impact on the grass collecting device 100, thereby improving the stability and safety of the grass collecting device 100. Of course, in some other embodiments, the grass collecting device 100 may not include the elastic member 60. Specifically, when the grass collecting device 100 is in a stationary state, the elastic member 60 is in a compressed state or a natural state, so that the swing arm 31 abuts against the bracket 21, so that when the grass collecting device 100 is in the process of moving forward or backward, the swing arm 31 is clamped to the bracket 21 under the action of the elastic force of the elastic member 60, thereby reducing the rigid impact on the grass collecting device 100, thereby improving the stability and safety of the grass collecting device 100. When the grass collecting device 100 is moving forward or backward, if the roller 32 is stuck by the grass 1a, the swing arm 31 and the bracket 21 move toward each other, and the elastic member 60 is in a stretched state. When the grass collecting device 100 passes over the obstacle, the elastic member 60 recovers its deformation, and the swing arm 31 is clamped to the bracket 21 under the elastic force generated by the elastic member 60.

[0054] In some embodiments, the bracket 21 is provided with a first mounting structure 215, the swing arm 31 is provided with a second mounting structure 315, and the two ends of the elastic member 60 are respectively connected to the first mounting structure 215 and the second mounting structure 315. In a cross section parallel to the first direction X1, the line connecting the center of the first mounting structure 215 and the center of the second mounting structure 315 is the third line L3, the line connecting the axis of the second pivot 52 and the axis of the fourth pivot 54 is the second line L2, and the inclination direction of the third line L3 is opposite to the inclination direction of the second line L2. Therefore, on the one hand, the elastic member 60 can realize the reset movement of the swing arm 31 and the bracket 21. For example, when the grass collecting device 100 moves backward, the roller 32 will exert a force on the swing arm 31 to swing forward and upward, and the elastic member 60 can provide a clamping force to the lower right for the swing arm 31 and the bracket 21. The clamping force enables the swing arm 31 and the bracket 21 to reset to a clamped state when the grass collecting device 100 moves forward, so that the grass collecting device 100 can adapt to different grasses 1a to achieve a good grass collecting effect, and it is convenient for the swing arm 31 and the roller 32 to adapt to the scene where the roller 32 is stuck by the grass 1a again when the grass collecting device 100 moves backward; on the other hand, based on setting the inclination direction of the third connecting line L3 to be opposite to the inclination direction of the second connecting line L2, the elastic reset force of the elastic member 60 is roughly colinear with the direction of the torque force of the swing arm 31, thereby improving the stability of the reset of the swing arm 31.

[0055] Exemplarily, in this embodiment, the two ends of the elastic member 60 are detachably fixed to the first mounting structure 215 and the second mounting structure 315 by the fixing member 63, so as to facilitate the assembly, disassembly and maintenance of the elastic member 60 with the bracket 21 and the swing arm 31, and the use is flexible. Specifically, the elastic member 60 includes an elastic body 61 and two hooks 62. The two hooks 62 are respectively arranged at the two ends of the elastic body 61. The fixing member 63 includes a fixing portion 631 and a limiting portion 632 connected to one end of the fixing portion 631. The fixing portion 631 passes through the hook 62 and is locked to the first mounting structure 215 or the second mounting structure 315, and the limiting portion 632 is used to press the hook 62 on the bracket 21 or the swing arm 31. Of course, in some embodiments, the elastic member 60 can also be installed on the bracket 21 and the swing arm 31 through other fixing structures, which is not specifically limited in the embodiment of the present application. Of course, in some embodiments, one end of the elastic member 60 can also be integrally formed with the bracket 21 or the swing arm 31.

[0056] For example, in this embodiment, the elastic member 60 is configured as a tension spring. Of course, in some embodiments, the elastic member 60 can also be configured as, but not limited to, a compression spring, a torsion spring, a coil spring or a gas spring, and other elastic structures for providing elastic reset force are also applicable to the present application. Thus, the elastic member 60 can provide a torque for clamping between the swing arm 31 and the bracket 21, prevent the swing arm 31 from colliding with the bracket 21, reduce the rigid impact on the grass collecting device 100, and extend the service life of the grass collecting device 100.

[0057] Please refer again Figure 3 and Figure 4 , the swing arm 31 includes two swing rods 311. The two swing rods 311 are rotatably connected to the bracket 21, and the drum 32 is rotatably connected between the two swing rods 311. As a result, the drum 32 is connected to the bracket 21 through the two swing rods 311, thereby improving the reliability and stability of the connection between the drum 32 and the swing arm 31, and making the swing arm 31 evenly stressed during the swinging process and not easily deformed. Specifically, one end of the swing rod 311 is rotatably connected to the mounting protrusion 213 of the bracket 21, and the other end of the swing rod 311 is rotatably connected to the drum 32. Of course, in some embodiments, the swing arm 31 may include only one swing rod 311, which is not specifically limited in the embodiments of the present application.

[0058] In some embodiments, the swing arm 31 further includes a connecting rod 312. The connecting rod 312 is bent and connected between the two swing rods 311, the connecting rod 312 is rotatably connected to the bracket 21, and the end of each swing rod 311 facing away from the connecting rod 312 is rotatably connected to the roller 32. Thus, the two swing rods 311 are connected together through the connecting rod 312, thereby improving the overall structural strength of the swing arm 31, improving the integration of the swing arm 31, and facilitating the assembly of the swing arm 31 with the bracket 21 and the roller 32.

[0059] The connecting rod 312 is fixedly connected to the two swing rods 311. In the present embodiment, the connecting rod 312 and the two swing rods 311 are integrally formed, thereby improving the structural strength of the overall structure of the swing arm 31, improving the stability of the swing arm 31 driving the roller 32 to swing relative to the bracket 21, and improving the assembly efficiency, and improving the integration of the swing arm 31, and the structure is simple and compact. The two swing rods 311 are bent and connected to the two ends of the connecting rod 312 respectively. Specifically, each swing rod 311 is connected to the end of the connecting rod 312 and is bent toward one side of the roller 32. Of course, in some embodiments, the connecting rod 312 and the two swing rods 311 can also be detachably fixedly connected, which is not specifically limited in the embodiments of the present application.

[0060] In some embodiments, a first protrusion 3111 is provided on a side of the connecting rod 312 close to the roller brush 23, and a second protrusion 3121 is provided on a side of the swing arm 311 away from the roller brush 23. The first protrusion 3111 is rotatably connected to the bracket 21 via the second pivot 52. The second protrusion 3121 is rotatably connected to the roller 32 via the fourth pivot 54. Thus, based on the first protrusion 3111 and the second protrusion 3121 protruding in opposite directions, the problem of motion interference between the rotatable part of the swing arm 31 and the rotatable roller 32 is avoided, thereby improving the stability of the grass collecting device 100 and improving the compactness of the overall structure of the grass collecting device 100.

[0061] In some embodiments, the first protrusion 3111 and the second protrusion 3121 are configured as arc-shaped protrusions. Therefore, on the one hand, the arc-shaped protrusions can increase the structural stability of the swing arm 31, and the arc structure can evenly distribute pressure and reduce stress concentration, thereby improving the stability of the swing and rolling rotation of the swing arm 31; on the other hand, the risk of the first protrusion 3111 and the second protrusion 3121 colliding with obstacles or being entangled by weeds is reduced, and the sharpness of the spatial edges is weakened, thereby improving the aesthetics.

[0062] In this embodiment, along the width direction Y of the grass collecting device 100, the two mounting protrusions 213 are located between the two first protrusions 3111, thereby avoiding the problem of motion interference between the rotatable part of the swing arm 31 and the rotatable bracket 21, thereby improving the stability of the grass collecting device 100 and improving the compactness of the overall structure of the grass collecting device 100. Of course, in some embodiments, along the width direction Y of the grass collecting device 100, the two first protrusions 3111 are located between the two mounting protrusions 213, and the embodiment of the present application does not make specific limitations.

[0063] In some embodiments, the swing arm 31 further includes a reinforcing rib 313, and the reinforcing rib 313 connects the side wall of the first protrusion 3111 facing the connecting rod 312 and the side wall of the swing rod 311 facing away from the bracket 21. Therefore, on the one hand, the reinforcing rib 313 can enhance the structural strength of the free end of the swing rod 311 and extend the service life of the swing arm 31; on the other hand, the reinforcing rib 313 is arranged on the side wall of the swing rod 311 facing the connecting rod 312, so as to avoid the interference between the reinforcing rib 313 and the ground obstacles.

[0064] In this embodiment, the side wall of the reinforcing rib 313 facing away from the swing arm 311 is configured as an arc surface 3131, thereby preventing weeds from being entangled at the connection between the drum 32 and the swing arm 31, and improving the smoothness and reliability of rolling rotation. The second protrusion 3121 includes an outer convex surface 3123, and the arc surface 3131 is smoothly connected to the outer convex surface 3123, so that the second protrusion 3121 can automatically and efficiently remove weeds, effectively avoiding the problem of weed entanglement.

[0065] For example, in the present embodiment, the support member 30 further comprises a first positioning seat 331 and a second positioning seat 351, wherein the first positioning seat 331 is fixedly connected to the second pivot 52 and is detachably connected to the first protrusion 3111 through the first locking member 332, and the second positioning seat 351 is fixedly connected to the fourth pivot 54 and is detachably connected to the second protrusion 3121 through the second locking member 352. Thus, the swing arm 31 is detachably connected to the bracket 21 and the roller 32 through the first locking member 332 and the second locking member 352, thereby facilitating the assembly, maintenance, replacement and other operations of the swing arm 31, the bracket 21 and the roller 32, and making the use flexible. The first positioning seat 331 is integrally formed with the second pivot 52, and the second positioning seat 351 is integrally formed with the fourth pivot 54, thereby improving the connection strength between the first positioning seat 331 and the second pivot 52 and between the first positioning seat 331 and the second pivot 52, and improving the reliability and safety of the rotation of the swing arm 31 and the roller 32.

[0066] For example, in this embodiment, the first positioning seat 331 is detachably connected to the swing arm 311 through a locking structure. Along the width direction Y of the grass collecting device 100, a fixing column is provided on the side wall of the swing arm 311 facing away from the roller 32. The fixing column is provided with a locking hole. The first positioning seat 331 is provided with a through hole for the locking structure to pass through, and the locking structure passes through the through hole and is locked in the locking hole, thereby realizing the fixed connection between the swing arm 31 and the bracket 21 and the roller brush 23. Of course, in some embodiments, the swing arm 31 and the bracket 21 and the roller 32 can also be rotatably connected through other mounting structures, which is not specifically limited in the embodiment of the present application.

[0067] In some embodiments, the first protrusion 3111 is provided with a first positioning groove 3112 that cooperates and fixes with the first positioning seat 331, and the second protrusion 3121 is provided with a second positioning groove 3122 that cooperates and fixes with the second positioning seat 351. Thus, on the one hand, the problem that the first positioning seat 331 and the second positioning seat 351 protrude and interfere with obstacles on the ground is avoided, and obstacles are prevented from being entangled on the second pivot 52 and the fourth pivot 54 to affect the rotation of the bracket 21 and the swing arm 31, thereby improving the stability of the grass collecting device 100; on the other hand, the first positioning groove 3112 and the second positioning groove 3122 can play a role in positioning and assembling the first positioning seat 331 and the second positioning seat 351, thereby improving the assembly efficiency and assembly yield.

[0068] Please also read Figure 1 , Figure 4 and Figure 5 , Figure 5 yes Figure 2In some embodiments, the bracket 21 includes two support arms 210 and a guide plate 220, both ends of the roller brush 23 are rotatably connected between the two support arms 210, the guide plate 220 is connected between the two support arms 210 and is arranged around the circumference of the roller brush 23, and when the grass collecting device 100 is in a stationary state, the swing arm 31 is attached to the outer side wall of the guide plate 220 facing away from the roller brush 23. Therefore, on the one hand, the roller brush 23 and the swing arm 311 are located on different sides of the guide plate 220, thereby avoiding the problem of motion interference between the roller brush 23 and the rotatable drum 32 and the rotatable swing arm 31, thereby improving the stability and safety of the grass collecting device 100; on the other hand, when the grass collecting device 100 is in a stationary state, the swing arm 31 can be close to the guide plate 220 under the action of gravity, thereby avoiding the problem of collision of the grass collecting device 100 due to the gap between the swing arm 31 and the bracket 21 when the grass collecting device 100 moves forward, and the guide plate 220 is arc-shaped and can absorb the impact force applied by the swing arm 31 to the bracket 21 through micro-deformation, thereby extending the service life of the grass collecting device 100; on the other hand, the guide plate 220 can guide the movement of grass or leaves rolled up by the roller brush 23, thereby improving the grass collecting effect and efficiency of the grass collecting device 100.

[0069] In this embodiment, each support arm 210 is configured as an L-shaped structure. Specifically, each support arm 210 includes a main body 211 and an extension 212. The guide plate 220 is connected to the positions of the two support arms 210 corresponding to the main body 211. The guide plate 220 separates the swing arm 31 and the roller brush 23, thereby preventing the problem of sundries such as grass or leaves rolled up by the roller brush 23 from contaminating the support component 30, and improving the reliability and smoothness of the rotation of the swing arm 31.

[0070] For example, in this embodiment, the side wall of the guide plate 220 facing away from the roller brush 23 is provided with a plurality of convex ribs 221, thereby improving the structural strength of the guide plate 220. The plurality of convex ribs 221 are arranged in a staggered manner, thereby further improving the structural strength.

[0071] Please also read Figure 5 and Figure 6 , Figure 6 It is a structural schematic diagram of the grass collecting device 100 provided in the second embodiment of the present application. In some embodiments, the grass collecting device 100 also includes a grass collecting box 70. The grass collecting box 70 is installed at the rear of the main body 10, and is used to collect grass materials swept by the roller brush 23. Specifically, the grass collecting box 70 has a grass collecting state and a grass unloading state. In the grass collecting state, the grass collecting box 70 covers the main body 10, and the grass collecting box 70 can be used to temporarily store grass clippings collected by the cleaning brush. In the grass unloading state, the grass collecting box 70 is opened relative to the main body 10 to dump the grass clippings collected in the grass collecting box 70.

[0072] The guide plate 220 is extended toward the grass collecting box 70. The rotation direction of the roller brush 23 is clockwise when viewed from left to right. When the grass collecting device 100 moves forward in the forward direction, the driving member 24 drives the roller brush 23 to contact the grass 2a on the lawn 1a. The roller brush 23 will bend due to friction resistance. When leaving the grass 2a on the lawn 1a, the leaves, dead grass and other debris that it contacts will have an upward speed, thereby entering between the rotating roller brush 23 and the guide plate 220. During this process, the debris raised will contact the roller brush 23 for many times, and will be continuously accelerated, and finally fly out along the upper edge of the guide plate 220 and enter the grass collecting box 70. Therefore, in the embodiment of the present application, the setting of the guide plate 220 can guide the grass, leaves and other debris thrown by the roller brush 23 to move into the grass collecting box 70, so that more debris can be placed in the grass collecting box 70, thereby improving the grass collecting efficiency of the grass collecting device 100.

[0073] The roller brush 23 includes a roller 231 and bristles 232 disposed on the roller 231. The bristles 232 may have various shapes, and the user may select the shape of the bristles 232 according to the height, thickness, and grass type of the lawn to improve the grass collecting effect of the grass collecting device 100 under different lawns.

[0074] Please also read Figure 1 , Figure 6 and Figure 7 , Figure 7 yes Figure 6 Schematic diagram of the structure of the partial structure of the grass collecting device on the grass. In the second embodiment, the structure of the grass collecting device 100 is similar to that of the grass collecting device 100 of the first embodiment. The difference is that in the second embodiment, the support component 30 in the grass collecting device 100 is different from the support component 30 in the first embodiment, and the grass collecting device 100 does not include the elastic member 60. Specifically, the support component 30 does not include the swing arm 31, that is, the support component 30 only includes the roller 32, and the structure of the roller 32 is different from the structure of the roller 32 in the first embodiment.

[0075] For example, in this embodiment, the collecting component 20 includes a bracket 21 and a roller brush 23. One end of the bracket 21 is rotatably connected to the main body 10 through a first pivot 51, and the other end of the bracket 21 is rotatably connected to the roller brush 23 through a third pivot 53. The supporting component 30 is configured as a roller 32. The roller 32 is rotatably connected to the bracket 21 through a second pivot 52 and is configured as a D-shaped structure.

[0076] It can be understood that when the grass collecting device 100 moves along the first direction X1, the bracket 21 together with the roller brush 23 and the roller 32 installed on the bracket 21 can only rotate synchronously around the first pivot 51 within a preset angle range, and the roller 32 does not rotate around the second pivot 52. At this time, the bottom of the roller 32 is in contact with the grass 2a on the lawn 1a, and there is sliding friction between the roller 32 and the grass 2a. In addition, the setting of the first pivot 51 can reduce the resistance of the walking device to move along the first direction X1 on the lawn; when the grass collecting device 100 moves along the first direction X1, the roller 32 can rotate synchronously around the first pivot 51 within a preset angle range, and the roller 32 does not rotate around the second pivot 52. At this time, the bottom of the roller 32 is in contact with the grass 2a on the lawn 1a, and there is sliding friction between the roller 32 and the grass 2a. In addition, the setting of the first pivot 51 can reduce the resistance of the walking device to move along the first direction X1 on the lawn. When moving in the second direction X2, the roller 32 can rotate around the second pivot 52, so that the sliding friction between the roller 32 and the grass 2a is converted into rolling friction, thereby reducing the friction between the roller 32 and the grass 2a, and enabling the roller 32 to drive the roller brush 23 to pass through obstacles smoothly, thereby improving the obstacle crossing performance of the grass collecting device 100, and reducing the resistance of the roller brush 23 and the damage of the roller brush 23 to the grass. In addition, the setting of the second pivot 52 can reduce the resistance of the walking device moving along the second direction X2 on the grass.

[0077] Exemplarily, in this embodiment, the roller 32 includes a first surface 3201 and a second surface 3202 connected to both ends of the first surface 3201. The second surface 3202 is arranged to protrude outward relative to the first surface 3201. When the grass collecting device 100 moves along the first direction X1, the first surface 3201 can be located on the side of the second surface 3202 close to the roller brush 23 in the first direction X1; when the grass collecting device 100 moves along the second direction X2, the first surface 3201 can be located on the side of the second surface 3202 close to the grass in the height direction Z of the grass collecting device 100. Therefore, when the grass collecting device 100 moves along the second direction X2 (such as Figure 7 During the movement of the grass plant 2a in the first direction X1 (such as the backward direction in the figure), the grass plant 2a exerts an influence on the roller 32 along the first direction X1 (such as Figure 7The roller 32 is driven to generate torque so that the roller 32 rotates around the second pivot 52 and increases the distance between the roller 32 and the lawn 1a, thereby reducing the contact between the roller 32 and the grass roots of the grass plants 2a on the lawn 1a, thereby reducing the resistance of the grass collecting device 100 moving along the second direction X2 and avoiding the problem that the roller brush 23 penetrates into the grass roots and damages the lawn, so that the roller 32 can drive the roller brush 23 to pass through obstacles smoothly, thereby improving the obstacle-crossing performance of the grass collecting device 100, reducing the resistance of the roller brush 23 and reducing the damage of the roller brush 23 to the lawn. When the grass collecting device 100 moves along the first direction X1, the roller 32 will be subject to resistance in the second direction X2, and the bracket 21 together with the roller 32 and the roller brush 23 mounted on the bracket 21 will be driven to rotate backward and upward around the first pivot 51, and the roller 32 will not rotate around the second pivot 52, so that the roller 32 can pass over the obstacle of the lawn 1a, and the problem of the roller brush 23 contacting too deep a lawn position and scraping the grass can be avoided, so as to reduce the damage of the roller brush 23 to the grass, and reduce the resistance of the roller brush 23, so as to reduce the probability of overloading and stalling of the driving member 24, and reduce the resistance of the grass collecting device 100 moving along the first direction X1.

[0078] Of course, in some embodiments, when the grass collecting device 100 moves along the first direction X1, the first surface 3201 may be located on the side of the second surface 3202 away from the roller brush 23 in the first direction X1. Therefore, when the grass collecting device 100 moves along the first direction X1 (i.e., the forward direction), the grass plant 2a exerts resistance along the second direction X2 (i.e., the backward direction) on the roller 32, and drives the roller 32 to generate torque, so that the roller 32 rotates around the second pivot 52, thereby avoiding the problem that when the grass collecting device 100 moves forward, the roller 32 is stuck by the grass 1a, which increases the resistance of the walking device, and the roller brush 23 penetrates into the grass roots and damages the lawn, so that the roller 32 can drive the roller brush 23 to pass through obstacles smoothly, thereby improving the obstacle-crossing performance of the grass collecting device 100, and reducing the resistance of the roller brush 23 and the damage to the lawn by the roller brush 23. When the grass collecting device 100 moves along the second direction X2, the roller 32 will be subject to resistance in the first direction X1, and the bracket 21 together with the roller 32 and the roller brush 23 mounted on the bracket 21 will be driven to rotate forward and upward around the first pivot 51, so that the roller 32 can pass over the obstacle of the lawn 1a, and the problem of the roller brush 23 contacting too deep into the lawn and scraping the grass can be avoided, so as to reduce the damage of the roller brush 23 to the grass, and reduce the resistance of the roller brush 23, so as to reduce the probability of overloading and stalling of the driving member 24.

[0079] For example, in this embodiment, along the forward direction of the grass collecting device 100, the roller 32 is arranged at the front side of the roller brush 23. Thus, it is avoided that the roller 32 is arranged at the rear side of the roller brush 23, and the problem of the roller 32 affecting the grass collecting function on the grass collecting path of the roller brush 23 is avoided. Of course, in some embodiments, the roller 32 can also be arranged at the rear side of the roller brush 23, which is not specifically limited in the embodiment of the present application.

[0080] In some embodiments, the middle of the roller 32 near the first surface 3201 is rotatably connected to the bracket 2 through the second pivot 52. Therefore, on the one hand, the energy consumption of the roller 32 rotating around the second pivot 52 is reduced, and the stability of the roller 32 rotating around the second pivot 52 is improved, and the shaking and vibration of the grass collecting device 100 are reduced; on the other hand, the arrangement of the roller 32 in the middle of the first surface 3201 can also increase the strength and rigidity of the entire roller 32, and lower the center of gravity of the grass collecting device 100 moving along the second direction X2, thereby improving the grip of the grass collecting device 100, avoiding the problem of the grass collecting device 100 rolling over, and further improving the stability and safety of the grass collecting device 100 moving along the second direction X2.

[0081] Exemplarily, in the present embodiment, two rollers 32 are provided. The support component 30 further includes a support link 36. The support link 36 is provided between the two rollers 32 and is fixedly connected to the two rollers 32. The distance between the support link 36 and the lawn 1a is greater than the distance between the roller 32 and the lawn 1a. Thus, on the one hand, based on the fact that the distance between the support link 36 and the lawn 1a is greater than the distance between the roller 32 and the lawn 1a, the contact between the support link 36 and the grass roots of the grass plant 2a is reduced, and the friction between the support component 30 and the grass plant 2a during the forward or backward movement of the grass collecting device 100 is reduced, thereby improving the smoothness of the forward and backward movement of the grass collecting device 100; on the other hand, the two rollers 32 are synchronously rotated, the overall structural strength of the two rollers 32 is improved, and the integration of the support component 30 is improved, which is convenient for assembly and reduces the weight of the support component 30.

[0082] Please also read Figure 6 , Figure 7 and Figure 8 , Figure 8 yes Figure 6Exploded view of the partial structure of the grass collecting device 100 in FIG. The first outer wall 361 of the support link 36 and the second outer wall 362 connected to the first outer wall 361. The first outer wall 361 is connected to and flush with the second surface 3202. In other words, the first outer wall 361 is connected to the second surface 3202 and is arranged coplanar. The second outer wall 362 is configured as an arc surface, thereby reducing the friction between the support link 36 and the grass plant 2a during the forward or backward process of the grass collecting device 100, and reducing the scratching of the support link 36 and obstacles on the grass 1a, thereby extending the service life and safety of the support component 30.

[0083] In some embodiments, the drum 32 is provided as one, and both ends of the drum 32 are rotatably connected to two side walls of the bracket 2 in the width direction X of the grass collecting device 100 . Thus, the manufacturing of the drum 32 is simplified, and the overall structural strength of the drum 32 is improved.

[0084] In some other embodiments, two rollers 32 are provided, and the two rollers 32 are provided independently of each other and are rotatably connected to two side walls in the width direction of the grass collecting device, respectively, thereby simplifying the processing and manufacturing of the rollers 32, saving materials, and reducing the production cost.

[0085] Please also read Figure 6 , Fig. 9 and Fig.10 , Fig. 9 yes Figure 6 A cross-sectional view of the grass collecting device 100; Fig.10 yes Fig. 9 1 is an enlarged view of part I of the grass collecting device 100 in FIG. In some embodiments, the second pivot 52 is fixedly arranged relative to the bracket 21. One of the roller 32 and the second pivot 52 is provided with a limiting groove 521, and the other of the roller 32 and the second pivot 52 is provided with a limiting protrusion 322. The limiting protrusion 322 is rotatably limited in the limiting groove 521 to limit the rotation angle of the roller 32 relative to the bracket 21. Thus, the limiting protrusion 322 and the limiting groove 521 cooperate to limit the rotation angle of the roller 32 relative to the bracket 21, thereby ensuring that the roller 32 can switch to different postures according to the walking state of the grass collecting device 100 to reduce the resistance of the grass collecting device 100 to move forward or backward on the grass; on the other hand, the error caused by excessive rotation or insufficient rotation of the roller 32 is reduced, thereby improving the working efficiency of the grass collecting device 100, ensuring that the roller 32 runs in a safe working area, improving the stability and reliability of the grass collecting device 100, and being able to adapt to different working environments and task requirements. In other words, the support member 30 can only rotate around the second pivot 52 at a preset angle. Specifically, the drum 32 can only rotate around the second pivot 52 at a preset angle.

[0086] For example, in this embodiment, the limiting groove 521 includes a first groove side wall 5211 and a second groove side wall 5212 that are arranged opposite to each other. When the grass collecting device 100 moves along the first direction X1, the limiting protrusion 322 can stop the first groove side wall 5211; when the grass collecting device 100 moves along the second direction X2, the limiting protrusion 322 can stop the second groove side wall 5212.

[0087] For example, in this embodiment, the outer side wall of the second pivot 52 is provided with a limiting groove 521. The side wall of the drum 32 facing the bracket 21 is provided with a mounting groove 3210, and the groove side wall of the mounting groove 3210 is provided with a limiting protrusion 322. The second pivot 52 is installed in the mounting groove 3210, and the limiting protrusion 322 is slidably installed in the limiting groove 521.

[0088] Specifically, the drum 32 further includes two third surfaces 3203 connecting the first surface 3201 and the second surface 3202. The third surface 3203 of the drum 32 facing the bracket 21 is provided with a support protrusion 321, and the support protrusion 321 is provided with a mounting groove 3210. The second pivot 52 is inserted into the mounting groove 3210, and the limiting protrusion 322 is slidably installed in the limiting groove 521. Thus, the setting of the support protrusion 321 facilitates the processing and forming of the drum 32, and facilitates the alignment and assembly of the drum 32 and the second pivot 52. Of course, in some embodiments, the support protrusion 321 can be omitted, that is, the mounting groove 3210 directly penetrates the side wall of the drum 32 facing the bracket 21. The support arm 210 also includes a bearing portion 216. The structure of the bracket 21 in the second embodiment is substantially the same as that of the bracket 21 in the first embodiment. For example, in the second embodiment, the bracket 21 includes two support arms 210 and a guide plate 220 connected between the two support arms 210. The support arm 210 also includes a main body 211 and an extension 212. The support arm 210 also includes a bearing portion 216, which is bent and connected to the main body 211 and extends in the same direction as the extension 212. The bearing portion 216 and the extension 212 are respectively connected to two ends of the main body 211. The second pivot 52 is fixedly connected to the bearing portion 216. Thus, the compactness of the structure of the collecting component 20 and the supporting component 30 is improved.

[0089] In some embodiments, the grass collecting device 100 further includes a flipping mechanism 90. The flipping mechanism 90 is used to drive the grass collecting box 70 to flip relative to the main body 10, so as to realize the grass unloading function of the grass collecting box 70.

[0090] It should be noted that in the following description of the second embodiment, in order to avoid repeated description, detailed description of the same structure as the first embodiment is omitted. The structures and connection settings of the various elements in the grass collecting device 100 in the first embodiment that are the same as those in the grass collecting device 100 in the second embodiment can be applied to the second embodiment and will not be repeated here. For example, the structure of the main body 10 in the second embodiment is the same as that of the main body 10 in the first embodiment.

[0091] The embodiment of the present application also provides a walking device. The walking device includes a body and a grass collecting device 100 as described above. The grass collecting device 100 is connected to the tail of the body. Optionally, the body can drive the grass collecting device 100 to move. Specifically, the body includes a frame and a driving wheel mounted on the frame. The main body 10 is detachably mounted on the frame, enriching the use scenarios of the walking device and being flexible to use. Of course, in some embodiments, the main body 10 and the frame can also be non-detachably connected together. The driving wheel is used to drive the frame together with the grass collecting device 100 mounted on the frame to move on the ground. The rotation direction of the driving wheel is the same as the rotation direction of the roller 32, so that the roller 32 is used to drive the roller brush 23 to rise and fall with the rise and fall of the ground, avoiding direct collision between the roller brush 23 and obstacles, pits, protrusions, etc. on the ground, and keeping a suitable distance between the roller brush 23 and the ground, thereby protecting the roller brush 23 and improving the grass collecting effect of the roller brush 23.

[0092] Walking equipment may include but is not limited to hand-held, riding and fully automatic intelligent walking machines, etc., which are not limited in this application. The walking equipment can move on the ground. For example, the walking equipment can move on the ground under the push of the user. For another example, the walking equipment itself has the ability to move and can automatically move on the ground through a driving mechanism. The walking equipment can be configured as a mowing device, a harvesting device, a sweeping device, a spraying device, a transport device, etc. Exemplarily, in this embodiment, the walking equipment is configured as a mowing device. The walking equipment also includes a mowing device. The mowing device refers to a device for lawn care, for example, the mowing device can be used to mow the lawn and the grass and trees around the lawn. The grass collecting device 100 is connected to the tail of the mowing device. The grass collecting device 100 is used to collect debris such as grass clippings, leaves, etc. mowed by the mowing device. Of course, in some embodiments, the walking equipment may only include the grass collecting device 100.

[0093] The walking device provided in this embodiment adopts the grass collecting device 100 provided above in this application. Since the bracket 21, the roller brush 23, the roller 32 and the swing arm 31 of the grass collecting device 100 cooperate with each other, the grass collecting device 100 can collect the fallen leaves and weeds on the lawn 1a; it can also adjust the position of the roller 32 and the roller brush 23 relative to the ground according to the undulations of the lawn 1a, and automatically adapt to different lawns of different heights and thicknesses and grass species, so as to improve the grass collecting effect of the grass collecting device 100 under different lawns 1a; it can also prevent the roller brush 23 from contacting the grass roots and protect the grass roots, so that the grass collecting device 100 can cooperate with the main body 10 to mow the grass and collect debris on lawns of different heights, thicknesses, and grass species, thereby improving the applicability and working performance of the walking device.

[0094] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A grass collecting device, characterized in that: The grass collecting device comprises: main body; A collecting component, wherein the collecting component is rotatably connected to the main body via a first pivot; A supporting component, wherein the supporting component is rotatably connected to the collecting component via a second pivot; When the grass collecting device moves along a first direction, the collecting component and the supporting component can rotate synchronously around the first pivot within a preset angle range, and the supporting component does not rotate around the second pivot; when the grass collecting device moves along a second direction, the supporting component can rotate around the second pivot, and the first direction is opposite to the second direction.

2. The grass collecting device according to claim 1, characterized in that: The collecting component includes a bracket and a roller brush, one end of the bracket is rotatably connected to the main body through the first pivot, and the other end of the bracket is rotatably connected to the roller brush through the third pivot; the supporting component includes a swing arm and a roller, one end of the swing arm is rotatably connected to the bracket through the second pivot, and the other end of the swing arm is rotatably connected to the roller through the fourth pivot.

3. The grass collecting device according to claim 2, characterized in that: The swing arm is located at a side of the bracket facing away from the roller brush.

4. The grass collecting device according to claim 2, characterized in that: Along the first direction, the rotation axis of the fourth pivot is located between the rotation axis of the first pivot and the rotation axis of the third pivot.

5. The grass collecting device according to claim 2, characterized in that: In a cross section parallel to the first direction, a line connecting the axis center of the first pivot and the axis center of the third pivot is a first line, a line connecting the axis center of the second pivot and the axis center of the fourth pivot is a second line, and a length of the first line is greater than a length of the second line.

6. The grass collecting device according to any one of claims 2 to 5, characterized in that: The bracket includes a main body and an extension part, the extension part is bent and connected to one end of the main body, the end of the extension part facing away from the main body can be rotatably connected to the main body, the roller brush can be rotatably connected to the end of the main body facing away from the extension part, and one end of the swing arm can be rotatably connected to the main body and is located on the same side of the main body as the extension part.

7. The grass collecting device according to claim 6, characterized in that: The grass collecting device also includes a driving member, which is transmission-connected to the roller brush and used to drive the roller brush to rotate relative to the main body. The driving member is installed on the inner side wall of the end of the main body close to the extension part. A mounting protrusion is provided in the middle of the main body, and the swing arm is rotatably connected to the mounting protrusion.

8. The grass collecting device according to any one of claims 2 to 5, characterized in that: When the grass collecting device is in a stationary state, the swing arm abuts against the bracket.

9. The grass collecting device according to any one of claims 2 to 5, characterized in that: The grass collecting device further comprises an elastic member, one end of which is connected to the bracket, and the other end of which is connected to the swing arm.

10. The grass collecting device according to claim 9, characterized in that: The bracket is provided with a first mounting structure, the swing arm is provided with a second mounting structure, and the two ends of the elastic member are respectively connected to the first mounting structure and the second mounting structure; in a cross section parallel to the first direction, a line connecting the center of the first mounting structure and the center of the second mounting structure is a third line, a line connecting the axis center of the second pivot and the axis center of the fourth pivot is a second line, and an inclination direction of the third line is opposite to an inclination direction of the second line.

11. The grass collecting device according to claim 9, characterized in that: The elastic member is configured as a tension spring, a compression spring, a torsion spring, a coil spring or a gas spring.

12. The grass collecting device according to any one of claims 2 to 5, characterized in that: The swing arm comprises two swing rods, the two swing rods are rotatably connected to the bracket, and the roller is rotatably connected between the two swing rods.

13. The grass collecting device according to claim 12, characterized in that: The swing arm also includes a connecting rod, which is bent and connected between the two swing rods. The connecting rod is rotatably connected to the bracket, and the end of each swing rod facing away from the connecting rod is rotatably connected to the roller.

14. The grass collecting device according to claim 13, characterized in that: A first protrusion is provided on the side of the connecting rod close to the roller brush, and a second protrusion is provided on the side of the swing arm away from the roller brush. The first protrusion is rotatably connected to the bracket through the second pivot, and the second protrusion is rotatably connected to the roller through the fourth pivot.

15. The grass collecting device according to claim 14, characterized in that: The swing arm further comprises a reinforcing rib, wherein the reinforcing rib connects a side wall of the first protrusion facing the connecting rod and a side wall of the swing arm facing away from the bracket.

16. The grass collecting device according to claim 1, characterized in that: The collecting component includes a bracket and a roller brush, one end of the bracket is rotatably connected to the main body via the first pivot, and the other end of the bracket is rotatably connected to the roller brush via a third pivot; the supporting component is configured as a roller, which is rotatably connected to the bracket via a second pivot and is configured as a D-shaped structure.

17. The grass collecting device according to claim 16, characterized in that: The roller includes a first surface and a second surface connected to both ends of the first surface, and the second surface is arranged to protrude outward relative to the first surface; when the grass collecting device moves along the first direction, the first surface may be located on a side of the second surface close to the roller brush in the first direction; when the grass collecting device moves along the second direction, the first surface may be located on a side of the second surface close to the grass in the height direction of the grass collecting device.

18. The grass collecting device according to claim 17, characterized in that: The middle portion of the roller close to the first surface is rotatably connected to the bracket via the second pivot.

19. The grass collecting device according to any one of claims 16 to 18, characterized in that: The roller is provided as one, and the two ends of the roller are rotatably connected to the two side walls of the bracket in the width direction of the grass collecting device; or, the roller is provided as two, the two rollers are provided independently of each other, and are rotatably connected to the two side walls of the bracket in the width direction of the grass collecting device; or, the roller is provided as two, the supporting component further includes a supporting connecting rod, the supporting connecting rod is provided between the two rollers and fixedly connected to the two rollers, and the distance between the supporting connecting rod and the grass is greater than the distance between the roller and the grass.

20. The grass collecting device according to any one of claims 16 to 18, characterized in that: The second pivot is fixed relative to the bracket, one of the roller and the second pivot is provided with a limiting groove, and the other of the roller and the second pivot is provided with a limiting protrusion, and the limiting protrusion can be rotatably limited in the limiting groove to limit the rotation angle of the roller relative to the bracket.

21. The grass collecting device according to claim 20, characterized in that: The limiting groove includes a first groove side wall and a second groove side wall that are arranged opposite to each other; when the grass collecting device moves along the first direction, the limiting protrusion can stop the first groove side wall; when the grass collecting device moves along the second direction, the limiting protrusion can stop the second groove side wall.

22. A walking device, characterized in that: The utility model comprises a machine body and a grass collecting device as claimed in any one of claims 1 to 21, wherein the grass collecting device is connected to the rear part of the machine body.

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