Grass collecting device and grass cutting apparatus

Abstract

The application relates to the technical field of robots, and proposes a grass collecting device and a mowing equipment. The grass collecting device comprises a main body and a supporting assembly, and the main body comprises a rolling brush. The supporting assembly is installed on the main body and located in front of the rolling brush, and the supporting assembly is configured to be capable of being switched between a first state and a second state to change the height of the rolling brush. When the main body moves along a first direction, the supporting assembly is in the first state and lifts the rolling brush to a first height; when the main body moves along a second direction, the supporting assembly is switched from the first state to the second state, and the rolling brush is at a second height. The grass collecting device further comprises a swing piece or a swing piece. The grass collecting device and the mowing equipment improve the grass collecting effect.

Description

Technical Field

[0001] This application relates to the field of robotics, and more particularly to a grass collection device and a grass mowing equipment. Background Technology

[0002] Current lawnmowers use a combination of a brush and a roller to collect fallen leaves and weeds from the lawn. However, when the existing lawnmower moves forward, the grass exerts a backward force on the roller, allowing it to float normally. But this does not ensure a proper distance between the brush and the grass, making it difficult to effectively collect grass debris. Furthermore, when the lawnmower moves backward, the roller is easily affected by the grass, resulting in high backward resistance and hindering smooth movement. Summary of the Invention

[0003] In view of this, this application provides a grass collection device and a grass mowing equipment that can effectively collect grass.

[0004] One embodiment of this application provides a grass-collecting device, including a main body and a support assembly. The main body includes a roller brush. The support assembly is mounted on the main body and located in front of the roller brush. The support assembly is configured to switch between a first state and a second state to change the height of the roller brush. When the main body moves along a first direction, the support assembly is in the first state and raises the roller brush to a first height. When the main body moves along a second direction, the support assembly switches from the first state to the second state, and the roller brush is at a second height, where the first height is greater than the second height.

[0005] In some embodiments of this application, when the grass collecting device moves along the first direction, the support component is in the first state and the roller brush is raised to a first height. This ensures that the height between the roller brush and the grass is greater than the height between the support component and the grass, maintaining a certain distance between the roller brush and the grass, reducing the resistance between the roller brush and the grass, and facilitating the effective collection of grass debris. When the grass collecting device moves along the second direction, the support component switches from the first state to the second state, without creating resistance to the grass collecting device. This reduces the resistance to the grass collecting device moving along the second direction, ensuring that the grass collecting device can move smoothly along the second direction and improving the grass collecting effect of the grass collecting device.

[0006] In some embodiments of this application, the grass collecting device further includes a swing member, the first end of which is connected to the support assembly, and the second end of which is rotatably connected to the main body. The swing member can change the height of the roller brush during the swinging process.

[0007] In some embodiments of this application, the height of the roller brush is changed by swinging the swinging member. When the main body moves in the first direction, the height between the roller brush and the grass is ensured to be greater than the height between the support component and the grass, so that the roller brush and the grass maintain a certain distance, reducing the resistance between the roller brush and the grass, which is conducive to effectively collecting debris on the grass. When the main body moves in the second direction, the support component does not provide support force to the grass collecting device, so it does not form resistance to the grass collecting device, reducing the backward resistance of the grass collecting device, and ensuring that the grass collecting device can move backward smoothly.

[0008] In some embodiments of this application, the first end of the swing member is provided with a connector, and the connector is provided with a limiting part. In the second state, the limiting part abuts against the support component, which helps to limit the rotation angle of the support component.

[0009] In some embodiments of this application, the support component is provided with a protrusion, and the limiting part is provided with a limiting groove that cooperates with the protrusion. The protrusion extends into the limiting groove and can slide within the limiting groove. The two opposite groove walls of the limiting groove restrict the protrusion to slide within a preset range, thereby restricting the support component from rotating within the preset range.

[0010] In some embodiments of this application, the rotation angle range of the support component is limited when the main body moves along the second direction by the cooperation of the limiting groove and the protrusion. This precisely controls the movement range of the support component, prevents the main body from getting stuck when it moves along the second direction due to excessive rotation of the support component, and ensures that the grass collection device can move smoothly.

[0011] In some embodiments of this application, the swing member includes an elastic member and a connector at one end. The two ends of the elastic member are respectively disposed on the support assembly and the connector. The elastic member is used to reset the support assembly.

[0012] In some embodiments of this application, the restoring force of the elastic element is used to achieve automatic reset of the support component.

[0013] In some embodiments of this application, the main body is provided with a blocking part. In the second state, the blocking part abuts against the swing member, and the swing angle of the swing member can be limited by the blocking part.

[0014] In some embodiments of this application, the support component includes a connecting portion and support portions located at both ends, and the opposite sides of the connecting portion and the support portions located at both ends together form a clearance zone.

[0015] In some embodiments of this application, by setting up a clearance zone that does not contact the grass, the grass in the clearance zone is not squeezed, which can prevent the grass clippings after cutting from falling into the grass roots due to compression, making it difficult for the subsequent roller brush to collect the grass clippings. At the same time, by setting up a clearance zone, the contact area between the grass and the support component can be reduced, which helps to reduce the resistance between the grass collecting device and the grass, thereby ensuring that the grass collecting device can move smoothly and improving the grass collecting effect of the grass collecting device.

[0016] In some embodiments of this application, the connecting part and the supporting part are integrally formed structures, which can be processed with a single mold, thus reducing costs.

[0017] In some embodiments of this application, the width of the clearance zone along the direction perpendicular to the main body moving in the first direction is greater than the width of the support portion along the direction perpendicular to the main body moving in the first direction. This helps to reduce the resistance between the grass collecting device and the grass, thereby ensuring that the grass collecting device can move smoothly.

[0018] In some embodiments of this application, the support has a working surface that contacts the grass. The working surface is configured to slide in contact with the grass when moving along the first direction, which helps to reduce air resistance and frictional resistance when the support slides on the grass, increase the sliding speed of the support, and reduce the resistance of the grass collecting device.

[0019] In some embodiments of this application, the support has a first contact surface and a second contact surface, the first contact surface being configured to contact the grass when moving along the first direction, and the second contact surface being configured to face the grass when moving along the second direction, and the first contact surface being configured as an arc surface.

[0020] In some embodiments of this application, by configuring the first contact surface of the support as an arc surface, when the grass collecting device moves forward, on the one hand, the arc surface can reduce the air resistance and frictional resistance when the support slides on the grass, increase the sliding speed of the support, and reduce the resistance of the grass collecting device. On the other hand, the arc surface can disperse the pressure of the support in contact with the grass, enabling the grass clippings cut by the grass collecting device to directly contact the roller brush, thereby improving the grass collecting effect of the grass collecting device.

[0021] In some embodiments of this application, the support portion is provided with a counterweight, which is located on one side of the axis of rotation of the support portion, which is beneficial to realize the automatic reset of the support portion.

[0022] In some embodiments of this application, the grass collecting device further includes a chute, the first end of which is slidably connected to the support assembly, and the second end of which is connected to the main body via a rotating shaft. The chute rotates along the rotation direction of the rotating shaft so that the support assembly is configured to switch between a first state and a second state.

[0023] In some embodiments of this application, in the first state, the support component is rotatable relative to the slide, which facilitates the switching between the first and second states of the support component, thereby improving the grass collection effect of the grass collection device.

[0024] In some embodiments of this application, the sliding component is provided with a sliding groove, and both ends of the support component pass through the sliding groove and are slidably connected to the sliding groove. In the first state, the support component is rotatable relative to the sliding groove, and the sliding groove helps to limit the movement range of the support component.

[0025] In some embodiments of this application, the support assembly includes at least one support portion, and at least one of the support portions is in the shape of a roller.

[0026] In some embodiments of this application, the center of gravity height of the support component in the first state is less than that of the support component in the second state.

[0027] In some embodiments of this application, the pressure exerted by the support component on the grass in the first state is greater than the pressure exerted by the support component on the grass in the second state.

[0028] One embodiment of this application provides a grass-collecting device, comprising: a main body, a support assembly, and a swing member. The main body includes a roller brush. The support assembly is mounted on the main body and located in front of the roller brush, and is configured to switch between a first state and a second state. A first end of the swing member is connected to the support assembly, and a second end of the swing member is connected to the main body via a rotating shaft. The swing member is configured to swing along the rotation direction of the rotating shaft. When the main body moves along a first direction, the swing member swings relative to the rotating shaft at a first swing angle, causing the support assembly to rotate relative to the swing member, so that the support assembly is in the first state. When the main body moves along a second direction, the swing member swings relative to the rotating shaft at a second swing angle, causing the support assembly to rotate relative to the swing member, so that the support assembly is in the second state, wherein the first swing angle is greater than the second swing angle.

[0029] In some embodiments of this application, when the grass collecting device moves along the first direction, the sliding chute drives the support assembly to move. When the support assembly is in the first state, it applies a first pressure to the grass and supports the roller brush on the grass, ensuring that the height between the roller brush and the grass is greater than the height between the support assembly and the grass, so that the roller brush and the grass maintain a certain distance, reducing the resistance between the roller brush and the grass, which is beneficial for effectively collecting grass debris. When the grass collecting device moves along the second direction, the support assembly switches from the first state to the second state, and the support assembly and the sliding chute move relative to each other. The support assembly applies a second pressure to the grass. Since the support assembly moves away from the grass during the process of switching to the second state, it does not create resistance to the grass collecting device, reducing the resistance of the grass collecting device moving along the second direction, ensuring that the grass collecting device can move smoothly along the second direction, and improving the grass collecting effect of the grass collecting device.

[0030] One embodiment of this application provides a grass-collecting device, comprising: a main body, a support assembly, and a chute. The main body includes a roller brush. The support assembly is mounted on the main body and located in front of the roller brush, and is configured to switch between a first state and a second state. A first end of the chute is slidably connected to the support assembly, and a second end of the chute is connected to the main body via a pivot, the chute being configured to move the support assembly. When the main body moves along a first direction, the support assembly is in the first state and is configured to apply a first pressure to the grass. When the main body moves along the first direction, the support assembly switches from the first state to the second state, and is configured to apply a second pressure to the grass.

[0031] In some embodiments of this application, when the grass collecting device moves along the first direction, the sliding chute drives the support assembly to move between a first position and a second position. When the support assembly is in the first position, the support assembly applies a first pressure to the grass and supports itself on the grass, ensuring that the height between the roller brush and the grass is greater than the height between the support assembly and the grass, so that the roller brush and the grass maintain a certain distance, reducing the resistance between the roller brush and the grass, which is beneficial for effectively collecting grass debris. When the grass collecting device moves backward, the support assembly moves from the first position to the second position, which is a position away from the grass. Therefore, the second pressure applied by the support assembly to the grass is very small or negligible, and does not create resistance to the grass collecting device, reducing the backward resistance of the grass collecting device, ensuring that the grass collecting device can move backward smoothly, and improving the grass collecting effect of the grass collecting device.

[0032] In some embodiments of this application, the sliding component is provided with a sliding groove, and both ends of the support component pass through the sliding groove and are slidably connected to the sliding groove. In the first state, the support component is rotatable relative to the sliding groove.

[0033] In some embodiments of this application, the support assembly includes at least one support portion, and at least one of the support portions is in the shape of a roller.

[0034] One embodiment of this application also provides a lawn mowing device, including the aforementioned grass collection device.

[0035] In some embodiments of this application, when the grass-collecting device moves along the first direction, it can ensure that the height between the roller brush and the grass is greater than the height between the support component and the grass, so that the roller brush and the grass maintain a certain distance, reducing the resistance between the roller brush and the grass, which is beneficial to effectively collect grass debris. When the grass-collecting device moves along the second direction, it can reduce the resistance of the grass-collecting device moving along the second direction, ensuring that the grass-collecting device can move smoothly along the second direction, thus improving the grass-collecting effect of the grass-collecting device. Attached Figure Description

[0036] Figure 1 This is a perspective view of a lawn mowing device according to one embodiment of this application.

[0037] Figure 2 This is a perspective view of a lawn mowing device according to one embodiment of this application.

[0038] Figure 3 This is a perspective view of the grass-collecting device in one embodiment of this application.

[0039] Figure 4 This is a partial exploded view of the grass-collecting device in one embodiment of this application.

[0040] Figure 5 This is a partially exploded view of another location of the grass-collecting device in one embodiment of this application.

[0041] Figure 6 This is a partially exploded view of another location of the grass-collecting device in one embodiment of this application.

[0042] Figure 7 This is a partially exploded view of another location of the grass-collecting device in one embodiment of this application.

[0043] Figure 8 This is a schematic diagram of the support portion in one embodiment of this application.

[0044] Figure 9 This is a schematic diagram of the structure of the support component in one embodiment of this application.

[0045] Figure 10 This is a partially exploded view of another location of the grass-collecting device in one embodiment of this application.

[0046] Figure 11This is a partially exploded view of another location of the grass-collecting device in one embodiment of this application.

[0047] Figure 12 This is a partially exploded view of another location of the grass-collecting device in one embodiment of this application.

[0048] Explanation of main component symbols 1-Grass mowing equipment; 100-Grass collection device; 11-Main body; 110-Roller brush; 111-Blocking part; 12-Support assembly; 120-Connecting part; 121-Supporting part; 1210-Working surface; 1211-First contact surface; 1212-Second contact surface; 1213-First part; 1214-Second part; 122-Avoiding area; 123-Protrusion; 13-Swinging component; 130-Connecting component; 1301-Limiting part; 13011-Limiting groove; 14-Rotating shaft; 15-Sliding groove component; 150-Sliding groove.

[0049] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application.

[0050] The technical solution of this application will now be described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments.

[0051] It should be noted that when a component is referred to as "located on" another component, it can be directly on the other component or it can exist in an intervening component. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0053] Current lawnmowers use a combination of a brush and a roller to collect fallen leaves and weeds from the lawn. However, when the existing lawnmower moves forward, the grass exerts a backward force on the roller, allowing it to float normally. But this does not ensure a proper distance between the brush and the grass, making it difficult to effectively collect grass debris. Furthermore, when the lawnmower moves backward, the roller is easily affected by the grass, resulting in high backward resistance and hindering smooth movement.

[0054] Therefore, to solve the above-mentioned technical problems, some embodiments of this application provide a grass-collecting device. The grass-collecting device includes a main body and a support assembly. The main body includes a roller brush. The support assembly is mounted on the main body and located in front of the roller brush. The support assembly is configured to switch between a first state and a second state to change the height of the roller brush. When the main body moves along a first direction, the support assembly is in the first state and raises the roller brush to a first height, ensuring that the height between the roller brush and the grass is greater than the height between the support assembly and the grass, maintaining a certain distance between the roller brush and the grass, reducing resistance between the roller brush and the grass, and facilitating effective collection of grass debris. When the main body moves along a second direction, the support assembly switches from the first state to the second state, without creating resistance to the grass-collecting device, reducing the resistance to movement of the grass-collecting device along the second direction, ensuring smooth movement of the grass-collecting device along the second direction, and improving the grass-collecting effect of the grass-collecting device.

[0055] The following is in conjunction with the appendix Figures 1 to 8 This application provides a detailed description of some embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0056] like Figure 1 and Figure 2 As shown, one embodiment of this application provides a lawn mowing device 1, wherein, Figure 1 In this context, X1 represents the direction of movement of the lawn mowing device 1 along the first direction. Figure 2 In this context, X2 represents the direction of movement of the lawn mowing device 1 along the second direction. Figure 1 and Figure 2 In this context, A represents grassland. The mowing equipment 1 includes a grass collection device 100.

[0057] like Figure 3 As shown, the grass collecting device 100 includes a main body 11 and a support assembly 12. The main body 11 includes a roller brush 110. The support assembly 12 is mounted on the main body 11 and located in front of the roller brush 110. The support assembly 12 is configured to switch between a first state and a second state to change the height of the roller brush 110. When the main body 11 moves along a first direction, the support assembly 12 is in the first state and raises the roller brush 110 to a first height. When the main body 11 moves along a second direction, the support assembly 12 switches from the first state to the second state, and the roller brush 110 is at a second height. The first height is greater than the second height.

[0058] In some embodiments of this application, when the grass collecting device 100 moves along a first direction, the support component 12 provides support for the grass collecting device 100. The support component 12 is configured in a first state, and the roller brush 110 is raised to a first height. When the grass collecting device 100 moves along a second direction, the support component 12 does not provide support for the grass collecting device 100. The support component 12 is configured in a second state, and the roller brush 110 is at a second height. Since in the second state, the roller brush 110 is only supported by the grass and not by the support component 12, the first height is greater than the second height.

[0059] In some embodiments of this application, when the grass collecting device 100 moves along the first direction, the support component 12 is in a first state and raises the roller brush 110 to a first height. This ensures that the height between the roller brush 110 and the grass is greater than the height between the support component 12 and the grass, maintaining a certain distance between the roller brush 110 and the grass, reducing the resistance between the roller brush 110 and the grass, and facilitating the effective collection of grass debris. When the grass collecting device 100 moves along the second direction, the support component 12 switches from the first state to the second state, without creating resistance to the grass collecting device 100, reducing the resistance of the grass collecting device 100 moving along the second direction, ensuring that the grass collecting device 100 can move smoothly along the second direction, and improving the grass collecting effect of the grass collecting device 100.

[0060] In some embodiments of this application, the center of gravity height of the support component 12 in the first state is less than that of the support component 12 in the second state.

[0061] In some embodiments of this application, the center of gravity height is used to represent the height of the center of gravity of the support component 12 relative to the grass. By setting the center of gravity height of the support component 12 in the first state to be smaller than that in the second state, it is beneficial for the support component 12 to provide support for the grass collecting device 100 in the first state, thereby reducing the resistance between the roller brush 110 and the grass, and for the support component 12 not to create resistance for the grass collecting device 100 in the second state, thereby reducing the resistance of the grass collecting device 100 to move along the second direction and improving the grass collecting effect of the grass collecting device 100.

[0062] In some embodiments of this application, the pressure of the support component 12 on the grass in the first state is greater than that in the second state. This is beneficial because in the first state, the support component 12 applies pressure to the grass to raise the roller brush 110, so that the roller brush 110 maintains a certain distance from the grass, reducing the resistance between the roller brush 110 and the grass, which is beneficial for effectively collecting grass debris. In the second state, the support component 12 may touch the grass to generate pressure, but this pressure does not create resistance to the grass collecting device 100, ensuring that the grass collecting device 100 can move smoothly along the second direction, thus improving the grass collecting effect of the grass collecting device 100.

[0063] In some embodiments of this application, see also Figures 4 to 6 As shown, the grass collecting device 100 also includes a swing member 13. A first end of the swing member 13 is connected to the support assembly 12, and a second end of the swing member 13 is rotatably connected to the main body 11. For example, the second end of the swing member 13 can be rotatably connected to the main body 11 via a rotating shaft 14. The swing member 13 can change the height of the roller brush 110 during its swinging motion.

[0064] In some embodiments of this application, the support assembly 12 may or may not rotate during the swinging process of the swinging member 13, and this embodiment does not impose any restrictions on this.

[0065] In some embodiments of this application, when the grass collecting device 100 moves along the first direction, the grass exerts a backward force on the roller brush 110, and the roller brush 110 can float normally. However, due to the weight of the roller brush 110 itself, the height at which the roller brush 110 floats is limited. Therefore, during the swinging process of the swing member 13, the support component 12 provides support force to the grass collecting device 100 and raises the roller brush 110, ensuring that the height between the roller brush 110 and the grass is greater than the height between the support component 12 and the grass, so that the roller brush 110 maintains a certain distance from the grass, reducing the resistance between the roller brush 110 and the grass, which is beneficial for effectively collecting debris on the grass.

[0066] In some embodiments of this application, when the grass collecting device 100 moves along the second direction, the force exerted by the grass on the roller brush 110 causes the roller brush 110 to move toward the grass. The roller brush 110 may insert into the grass, which is not conducive to the grass collecting device 100 moving backward. Therefore, during the swinging process of the swing member 13, the support component 12 does not provide support force to the grass collecting device 100, so it does not form resistance to the grass collecting device 100, reducing the backward resistance of the grass collecting device 100 and ensuring that the grass collecting device 100 can move backward smoothly.

[0067] In some embodiments of this application, the main body 11 is provided with a blocking portion 111. In the second state, the blocking portion 111 abuts against the swing member 13. The blocking portion 111 can limit the swing angle of the swing member 13.

[0068] In some embodiments of this application, the swing member 13 includes an elastic member (not shown in the figure). The two ends of the elastic member are respectively disposed on the support assembly 12 and the connector 130. The elastic member is used to reset the support assembly 12.

[0069] In some embodiments of this application, the elastic element is a torsion spring, which includes a first arm and a second arm. The first arm is connected to the support assembly 12, and the second arm is connected to the connector 130. When the grass collecting device 100 moves along the second direction, during the process of the support assembly 12 switching from the first state to the second state, the torsion spring is subjected to external force and undergoes torsional deformation when the support assembly 12 rotates relative to the connector 130. When the grass collecting device 100 stops moving, the torsion spring generates a restoring force opposite to the external force, which is beneficial to use the restoring force of the torsion spring to realize the automatic reset of the support assembly 12.

[0070] In some embodiments of this application, see Figure 7 As shown, the first end of the swing member 13 is provided with a connector 130. The connector 130 is provided with a limiting part 1301, which abuts against the support assembly 12 in the second state.

[0071] In some embodiments of this application, the limiting part 1301 can abut against the support component 12 to limit the rotation angle of the support component 12. Specifically, the rotation angle of the support component 12 can be set according to the cross-section of the support component 12. For example, if the cross-section of the support component 12 is D-shaped, the rotation angle of the support component 12 can be set to 90 degrees.

[0072] In some embodiments of this application, see references 8 to 9. Figure 10 As shown, the support assembly 12 has a protrusion 123. The limiting part 1301 has a limiting groove 13011 that mates with the protrusion. The protrusion 123 extends into the limiting groove 13011 and can slide within the limiting groove 13011. The two opposing groove walls of the limiting groove 13011 restrict the protrusion 123 to slide within a preset range, thereby limiting the rotation of the support assembly 12 within the preset range.

[0073] In some embodiments of this application, the rotation angle range of the support component 12 is limited when the main body 11 moves along the second direction by the cooperation of the limiting groove 13011 and the protrusion 123. This precisely controls the movement range of the support component, prevents the support component 12 from over-rotating and causing the main body 11 to get stuck when moving along the second direction, and ensures that the grass collection device 100 can move smoothly.

[0074] In some embodiments of this application, the support component 12 includes a connecting portion 120 and support portions 121 located at both ends. The opposite sides of the connecting portion 120 and the support portions 121 located at both ends together form a clearance area 122.

[0075] In some embodiments of this application, by providing a connecting portion 120 between the support portions 121, and maintaining a certain height between the connecting portion 120 and the grass, a clearance zone 122 is formed between the connecting portion 120 and the support portion 121. The clearance zone 122 does not contact the grass, so that the grass in the clearance zone is not squeezed. This can prevent the grass clippings after cutting from falling into the grass roots due to compression, which would make it difficult for the subsequent roller brush to collect the grass clippings. At the same time, by providing the clearance zone 122, the contact area between the grass and the support component 12 can be reduced, which helps to reduce the resistance between the grass collecting device and the grass, thereby ensuring that the grass collecting device can move smoothly and improving the grass collecting effect of the grass collecting device.

[0076] In some embodiments of this application, the number of support parts 121 may include 2, 3, 4 or more, etc., and no specific limitation is made here.

[0077] In some embodiments of this application, if the support portion 121 includes multiple portions, the multiple support portions 121 are arranged sequentially on the connecting portion 120 along a direction perpendicular to the first direction, and the connecting portion 120 and the opposite sides of any two adjacent support portions 121 together form a clearance area.

[0078] In some embodiments of this application, the clearance zone 122 is at least partially located within the projection range of the roller brush 110 in the direction perpendicular to the forward direction of the main body of the grass collection device 100, so that the cut grass clippings are not disturbed by the support component 12 and are smoothly collected by the roller brush 110 into the grass collection device 100.

[0079] In some embodiments of this application, the connecting part 120 and the supporting part 121 are detachably connected, which facilitates the quick assembly and disassembly of the supporting part 121, makes it easier to maintain and replace the supporting part 121, and reduces the maintenance cost of the grass collecting device 100.

[0080] In some embodiments of this application, the connecting portion 120 and the supporting portion 121 are integrally formed. By integrally forming the connecting portion 120 and the supporting portion 121, only one set of molds is needed for processing, which helps to reduce costs.

[0081] In some embodiments of this application, the width of the clearance zone 122 along the direction perpendicular to the moving direction of the main body 11 along the first direction is greater than the width of the support portion 121 along the direction perpendicular to the moving direction of the main body 11 along the first direction, which helps to reduce the resistance between the grass collecting device 100 and the grass. This ensures that the grass collecting device 100 can move smoothly.

[0082] In some embodiments of this application, the support 121 has a working surface 1210 that contacts the grass. The working surface 1210 is configured to slide in contact with the grass when moving along the first direction.

[0083] In some embodiments of this application, the support 121 has a first contact surface 1211 and a second contact surface 1212. The first contact surface 1211 is configured to contact the grass when moving along a first direction, and the second contact surface 1212 is configured to face the grass when moving along a second direction. The first contact surface 1211 is configured as an arc surface.

[0084] In some embodiments of this application, by configuring the first contact surface 1210 of the support 121 as an arc surface, when the grass collecting device 100 moves forward, on the one hand, the arc surface can reduce the air resistance and frictional resistance when the support 121 slides on the grass, increase the sliding speed of the support 121, and reduce the resistance of the grass collecting device 100. On the other hand, the arc surface can disperse the pressure of the support 121 in contact with the grass, enabling the grass clippings cut by the grass collecting device 100 to directly contact the roller brush 110, thereby improving the grass collecting effect of the grass collecting device 100.

[0085] In some embodiments of this application, by configuring the second contact surface 1212 to face the grass when moving along the second direction, the second contact surface 1212 may come into contact with the grass when the grass collecting device 100 moves along the second direction, but the support component 12 does not provide support force, so it will not create resistance to the grass collecting device 100. Therefore, the resistance of the grass collecting device 100 to moving along the second direction is reduced, ensuring that the grass collecting device 100 can move smoothly along the second direction.

[0086] In some embodiments of this application, the support component 12 includes at least one support portion 121, which is in the shape of a roller.

[0087] In some embodiments of this application, multiple support parts 121 can provide multiple support forces for the roller brush 110, which is beneficial to make the roller brush 110 float upward and ensure that the height of the support component 12 from the grass is less than the height of the roller brush 110 from the grass, so that the roller brush 110 maintains a certain distance from the grass, and the roller brush 110 can better collect debris on the grass, thereby improving the grass collection effect of the grass collection device 100.

[0088] In some embodiments of this application, the support portion 121 is provided with a counterweight (not shown in the figures). The counterweight is located on one side of the axis of rotation of the support portion 121. Figure 7As shown, O represents the rotation axis of the support part 121. When the main body moves along the first direction, the support part 121 is in the first state, and the support part 121 is supported on the grass. The counterweight is provided on the side of the support part closer to the grass, so that the weight of the side of the support part 121 with the counterweight is greater than the weight of the side of the support part 121 without the counterweight. When the main body stops moving, the support part 121 can be automatically reset by the gravity of the side of the support part 121 with the counterweight.

[0089] In some embodiments of this application, the counterweight is detachably connected to the support 121, which facilitates the disassembly and assembly of the counterweight, makes it easy to adjust or maintain the counterweight, and ensures the automatic reset effect of the support 121.

[0090] In some embodiments of this application, the installation position of the counterweight and the support 121 can be adjusted by means of bolts, sliders, etc., so as to ensure that the gravity on the side of the support 121 where the counterweight is provided can realize the automatic reset of the support 121.

[0091] In some embodiments of this application, the configuration component and the support 121 are designed as an integrated unit, which helps to reduce the number of parts in the grass collection device and improve assembly efficiency.

[0092] In some embodiments of this application, the support portion 121 includes a first portion 1213 and a second portion 1214 arranged sequentially along the rotation direction of the support portion 121 (as shown by the X direction in the figure), wherein the density of the first portion 1213 is greater than the density of the second portion 1214. Specifically, in the first state, when the main body moves along the first direction, the support portion 121 is in the first state, and the first portion 1213 is supported on the grass. When the main body stops moving, the support portion 121 can automatically reset using the gravity of the first portion 1213.

[0093] In some embodiments of this application, the grass collecting device 100 further includes a chute 15. A first end of the chute 15 is slidably connected to the support assembly 12. A second end of the chute 15 is connected to the main body 11 via a pivot 14. Rotation of the chute 15 along the rotation direction of the pivot 14 allows the support assembly 12 to be configured to switch between a first state and a second state.

[0094] In some embodiments of this application, the sliding member 15 is provided with a sliding groove 150. Both ends of the support component 12 pass through and are slidably connected to the sliding groove 150. The sliding groove 150 limits the sliding distance of the support component 12. In the first state, the support component 12 is rotatable relative to the sliding groove 150. The sliding groove 150 helps to limit the range of movement of the support component. For example, the sliding groove can be oblong in shape.

[0095] In some embodiments of this application, in the first state, the support component 12 is rotatable relative to the slide 150, which facilitates the switching between the first and second states of the support component 12, thereby improving the grass collection effect of the grass collection device 100.

[0096] In some embodiments of this application, when the sliding groove 15 rotates along the rotation direction of the rotating shaft 14, it drives the support component 12 to move, which can realize the positional change between the support component 12 and the grass. The greater the distance between the support component 12 and the grass, the smaller the pressure exerted by the support component on the grass, which reduces the resistance to the grass collection device, ensures that the grass collection device 100 can move smoothly, and thus improves the grass collection efficiency of the grass collection device 100.

[0097] like Figures 3 to 5 As shown, one embodiment of this application provides a grass collecting device 100. The grass collecting device 100 includes a main body 11, a support assembly 12, and a swing member 13. The main body 11 includes a roller brush 110. The support assembly 12 is mounted on the main body 11 and located in front of the roller brush 110. The support assembly 12 is configured to switch between a first state and a second state. A first end of the swing member 13 is connected to the support assembly 12, and a second end of the swing member 13 is connected to the main body 11 via a rotating shaft 14. The swing member 13 is configured to drive the support assembly 12 to swing along the rotation direction of the rotating shaft 14. When the main body 11 moves along a first direction, the support assembly 12 is in the first state and swings relative to the rotating shaft 14 at a first swing angle. When the main body 11 moves along a second direction, the support assembly 12 is in the second state and swings relative to the rotating shaft 14 at a second swing angle. The first swing angle is greater than the second swing angle.

[0098] In some embodiments of this application, when the grass collecting device 100 moves along the first direction, the grass exerts a backward force on the roller brush 110, and the roller brush 110 can float normally. However, due to the weight of the roller brush 110 itself, the height to which the roller brush 110 floats is limited. Therefore, the swing member 13 swings at the first swing angle and drives the support component 12 to rotate, so that the support component 12 provides support force to the grass collecting device, further raising the roller brush 110, so as to ensure that the height between the roller brush 110 and the grass is greater than the height between the support component 12 and the grass, so that the roller brush 110 maintains a certain distance from the grass, reducing the resistance between the roller brush 110 and the grass, which is beneficial to effectively collect debris on the grass.

[0099] In some embodiments of this application, when the grass collecting device 100 moves along the second direction, the force exerted by the grass on the roller brush 110 causes the roller brush 110 to move toward the grass. The roller brush 110 may insert into the grass, which is not conducive to the grass collecting device 100 moving backward. Therefore, the swing member 13 swings at the second swing angle and drives the support component 12 to rotate, so that the support component 12 does not provide support force to the grass collecting device 100, thus not forming resistance to the grass collecting device 100, reducing the backward resistance of the grass collecting device 100, ensuring that the grass collecting device 100 can move backward smoothly, and improving the grass collecting effect of the grass collecting device 100.

[0100] In some embodiments of this application, see Figure 4 and Figure 5 As shown, O1 represents the center of the rotating shaft 14, α represents the first swing angle, and β represents the second swing angle.

[0101] In some embodiments of this application, the first end of the swing member 13 is provided with a connector 130. The connector 130 is provided with a limiting part 1301, which abuts against the support member assembly 12 in the second state.

[0102] In some embodiments of this application, the support assembly 12 is provided with a protrusion 123. The limiting portion 1301 is provided with a limiting groove 13011 that mates with the protrusion. The protrusion 123 extends into the limiting groove 13011 and can slide within the limiting groove 13011. The two opposing groove walls of the limiting groove 13011 restrict the protrusion 123 to slide within a preset range, thereby limiting the rotation of the support assembly 12 within the preset range.

[0103] In some embodiments of this application, the swing member 13 includes an elastic member 131. The two ends of the elastic member 131 are respectively disposed on the support assembly 12 and the connector 130. The elastic member 130 is used to reset the support assembly 12.

[0104] In some embodiments of this application, the main body 11 is provided with a blocking part 111. In the second state, the blocking part 111 abuts against the swing member 13, and the swing angle of the swing member 13 can be limited by the blocking part 111.

[0105] See also Figure 11 and Figure 12As shown, one embodiment of this application provides a grass collecting device 100, which includes a main body 11, a support assembly 12, and a chute 15. The main body 11 includes a roller brush 110. The support assembly 12 is mounted on the main body 11 and located in front of the roller brush 110. The support assembly 12 is configured to switch between a first state and a second state. A first end of the chute 15 is slidably connected to the support assembly 12, and a second end of the chute 15 is connected to the main body 11 via a pivot 14. The chute 15 is configured to move the support assembly 12. When the main body 11 moves along a first direction, the support assembly 12 is in the first state and is configured to apply a first pressure to the grass. When the main body 11 moves along a second direction, the support assembly 12 switches from the first state to the second state, and is configured to apply a second pressure to the grass. The first pressure is greater than the second pressure.

[0106] In some embodiments of this application, when the grass collecting device 100 moves along the first direction, the sliding member 15 drives the support component 12 to move. When the support component 12 is in the first state, the support component 12 applies a first pressure to the grass and supports the roller brush 110 on the grass, ensuring that the height between the roller brush 110 and the grass is greater than the height between the support component 12 and the grass, so that the roller brush 110 maintains a certain distance from the grass, reducing the resistance between the roller brush 110 and the grass, which is beneficial for effectively collecting grass debris. When the grass collecting device 100 moves along the second direction, the support component 12 switches from the first state to the second state, and the support component 12 moves relative to the sliding member. The support component 12 applies a second pressure to the grass. Since the support component 12 moves away from the grass during the process of switching to the second state, it does not create resistance to the grass collecting device 100, reducing the resistance of the grass collecting device 100 moving along the second direction, ensuring that the grass collecting device 100 can move smoothly along the second direction, and improving the grass collecting effect of the grass collecting device 100.

[0107] In some embodiments of this application, the sliding component 15 is provided with a sliding groove 150, and both ends of the support component 12 pass through the sliding groove 150 and are slidably connected to the sliding groove 150. The sliding groove 150 can limit the sliding distance of the support component 12. In the first state, the support component is rotatable relative to the sliding groove, which facilitates the switching between the first state and the second state of the support component 12, thereby improving the grass collection effect of the grass collecting device 100. In some embodiments of this application, the support component 12 includes at least one support part 121, and the at least one support part 121 is in the shape of a roller.

[0108] In some embodiments of this application, multiple support parts 121 can provide multiple support forces for the roller brush 110, which is beneficial to make the roller brush 110 float upward and ensure that the height of the support component 12 from the grass is less than the height of the roller brush 110 from the grass, so that the roller brush 110 maintains a certain distance from the grass, and the roller brush 110 can better collect debris on the grass, thereby improving the grass collection effect of the grass collection device 100.

[0109] One embodiment of this application provides a grass collecting device 100, which includes a main body 11, a support assembly 12, and a sliding member 15. The main body 11 includes a roller brush 110. The support assembly 12 is mounted on the main body 11 and located in front of the roller brush 110. The support assembly 12 is configured to switch between a first state and a second state. A first end of the sliding member 15 is slidably connected to the support assembly 12, and a second end of the sliding member 15 is connected to the main body 11 via a pivot 14. The sliding member 15 is configured to move the support assembly 12 between a first position and a second position. When the main body 11 moves along a first direction, the support assembly 12 is in the first state and located in the first position. When the main body 11 moves along a second direction, the support assembly 12 switches from the first state to the second state, and slides to the second position. The second position is higher than the first position.

[0110] In some embodiments of this application, when the grass collecting device 100 moves along the first direction, the sliding groove 15 drives the support component 12 to move between a first position and a second position. When the support component 12 is in the first position, the support component 12 applies a first pressure to the grass and supports the grass, ensuring that the height between the roller brush 110 and the grass is greater than the height between the support component 12 and the grass, so that the roller brush 110 maintains a certain distance from the grass, reducing the resistance between the roller brush 110 and the grass, which is beneficial for effectively collecting grass debris. When the grass collecting device 100 moves backward, the support component 12 moves from the first position to the second position, which is a position away from the grass. Therefore, the second pressure applied by the support component to the grass is very small or negligible, and does not create resistance to the grass collecting device 100, reducing the backward resistance of the grass collecting device 100, ensuring that the grass collecting device 100 can move backward smoothly, and improving the grass collecting effect of the grass collecting device 100.

[0111] In some embodiments of this application, in the above-mentioned lawn mowing device 1, when the grass collecting device 100 moves along the first direction, the support component 12 is in the first state and raises the roller brush 110 to a first height. This ensures that the height between the roller brush 110 and the grass is greater than the height between the support component 12 and the grass, so that the roller brush 110 maintains a certain distance from the grass, reducing the resistance between the roller brush 110 and the grass, which is beneficial for effectively collecting grass debris. When the grass collecting device 100 moves along the second direction, the support component 12 switches from the first state to the second state, without creating resistance for the grass collecting device 100, reducing the resistance of the grass collecting device 100 moving along the second direction, ensuring that the grass collecting device 100 can move smoothly along the second direction, and improving the grass collecting effect of the grass collecting device 100.

[0112] Those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the spirit and essence of this application fall within the scope of this application's disclosure.

Claims

1. A grass-collecting device, characterized in that, The grass collection device includes: The main body includes a roller brush; A support assembly is mounted on the body and located in front of the roller brush, the support assembly being configured to switch between a first state and a second state to change the height of the roller brush; When the main body moves along the first direction, the support component is in the first state and supports and lifts the roller brush away from the grass, so that the roller brush is at a first height; As the main body moves along the second direction, the support component switches from the first state to the second state, and the roller brush descends to a second height with the grass as support. The first height is greater than the second height, and the first direction and the second direction are opposite.

2. The grass-collecting device as described in claim 1, characterized in that, The grass collecting device also includes a swinging component, the first end of which is connected to the support assembly, and the second end of which is rotatably connected to the main body. The swinging component can change the height of the roller brush during the swinging process.

3. The grass-collecting device as described in claim 2, characterized in that, The first end of the swing member is provided with a connector, and the connector is provided with a limiting part. In the second state, the limiting part abuts against the support component.

4. The grass-collecting device as described in claim 3, characterized in that, The support component has a protrusion, and the limiting part has a limiting groove that cooperates with the protrusion. The protrusion extends into the limiting groove and can slide within the limiting groove. The two opposite groove walls of the limiting groove restrict the protrusion to slide within a preset range, thereby restricting the support component from rotating within the preset range.

5. The grass-collecting device as described in claim 2, characterized in that, The swinging component includes an elastic element and a connecting element at one end. The two ends of the elastic element are respectively disposed on the support assembly and the connecting element. The elastic element is used to reset the support assembly.

6. The grass-collecting device as described in claim 2, characterized in that, The main body is provided with a blocking part, which abuts against the swing member in the second state.

7. The grass-collecting device as described in claim 2, characterized in that, The support assembly includes a connecting part and support parts located at both ends, and the opposite sides of the connecting part and the support parts located at both ends together form a clearance zone.

8. The grass-collecting device as described in claim 7, characterized in that, The connecting part and the supporting part are integrally formed structures.

9. The grass-collecting device as described in claim 7, characterized in that, The width of the clearance zone along the direction perpendicular to the direction in which the main body moves along the first direction is greater than the width of the support portion along the direction in which the main body moves along the first direction.

10. The grass-collecting device according to any one of claims 7 to 9, characterized in that, The support has a working surface that contacts the grass, and the working surface is configured to slide into contact with the grass when moving along the first direction.

11. The grass-collecting device according to any one of claims 7 to 9, characterized in that, The support has a first contact surface and a second contact surface. The first contact surface is configured to contact the grass when moving along the first direction, and the second contact surface is configured to face the grass when moving along the second direction. The first contact surface is configured as an arc surface.

12. The grass-collecting device according to any one of claims 7 to 9, characterized in that, The support is provided with a counterweight, which is located on one side of the axis of rotation of the support.

13. The grass-collecting device as described in claim 1, characterized in that, The grass collection device also includes a chute, the first end of which is slidably connected to the support assembly, and the second end of which is connected to the main body via a rotating shaft. The chute rotates along the rotation direction of the rotating shaft, thereby configuring the support assembly to switch between a first state and a second state.

14. The grass-collecting device as described in claim 13, characterized in that, The slide member is provided with a slide groove, and the two ends of the support component pass through the slide groove and are slidably connected to the slide groove. In the first state, the support component is rotatable relative to the slide groove.

15. The grass-collecting device as described in claim 13 or 14, characterized in that, The support assembly includes at least one support portion, and at least one of the support portions is in the shape of a roller.

16. The grass-collecting device as described in claim 1, characterized in that, The center of gravity height of the support component in the first state is less than that of the support component in the second state.

17. The grass-collecting device as described in claim 1, characterized in that, In the first state, the pressure exerted by the support component on the grass is greater than that in the second state.

18. A grass-collecting device, characterized in that, The grass collection device includes: The main body includes a roller brush; A support assembly is mounted on the body and located in front of the roller brush, the support assembly being configured to switch between a first state and a second state; A swing member, the first end of which is connected to the support assembly, and the second end of which is connected to the main body via a pivot, wherein the swing member is configured to swing along the rotation direction of the pivot. When the main body moves along the first direction, the swing member swings relative to the pivot at a first swing angle, and drives the support assembly to rotate relative to the swing member, so that the support assembly is in the first state; When the main body moves along the second direction, the swing member swings relative to the pivot at a second swing angle, and drives the support assembly to rotate relative to the swing member, so that the support assembly is in the second state, the first swing angle is greater than the second swing angle, and the first direction and the second direction are opposite.

19. A grass-collecting device, characterized in that, The grass collection device includes: The main body includes a roller brush; A support assembly is mounted on the body and located in front of the roller brush, the support assembly being configured to switch between a first state and a second state; A sliding component, wherein a first end of the sliding component is slidably connected to the support assembly, and a second end of the sliding component is connected to the main body via a rotating shaft, and the sliding component is configured to drive the support assembly to move; When the main body moves along the first direction, the support component is in the first state and is configured to apply a first pressure to the grass; As the main body moves along the second direction, the support component switches from a first state to a second state, and the support component is configured to apply a second pressure to the grass, with the first direction and the second direction being opposite.

20. The grass-collecting device as described in claim 19, characterized in that, The slide member is provided with a slide groove, and the two ends of the support component pass through the slide groove and are slidably connected to the slide groove. In the first state, the support component is rotatable relative to the slide groove.

21. The grass-collecting device as described in claim 19, characterized in that, The support assembly includes at least one support portion, and at least one of the support portions is in the shape of a roller.

22. A lawn mowing device, comprising a grass collection device as described in any one of claims 1 to 21.

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