Self-moving device

Abstract

The utility model provides a self-moving device. The self-moving device comprises a chassis, a handle assembly and a moving wheel assembly. The chassis has opposite first and second ends. The handle assembly is arranged at the first end or the second end and located at the bottom of the base plate, the handle assembly comprises a handle part and a grass comb part, a gap is formed between the handle part and the base plate to form a handle groove, and the grass comb part is arranged on the side, away from the handle groove, of the handle part. The moving wheel assembly is rotatably arranged on the chassis and used for driving the self-moving equipment to move. When the self-moving equipment is cleaned and overhauled, a user can turn over the self-moving equipment through the handle part, so that the turning difficulty is reduced, and the use experience is improved; the handle part is hidden by the chassis, so that an extra setting space can be prevented from being reserved on a machine body of the self-moving equipment; the grass combing part can comb grass to be trimmed, so that the grass can be conveniently cut; and the grass comb part and the handle part are designed in an integrated manner, so that the structure of the self-moving equipment is more compact.

Description

Technical Field

[0001] The present application relates to the technical field of self-moving equipment, and in particular to a self-moving equipment. Background Art

[0002] When using a self-propelled device, it is often necessary to flip it over to facilitate cleaning, maintenance, and other operations. Traditional self-propelled devices lack gripping points on the body, making it difficult to flip the device over, severely reducing the user experience. Utility Model Content

[0003] The present application provides a self-moving device.

[0004] The present application provides a self-moving device, which includes a chassis, a handle assembly and a moving wheel assembly. The chassis has a first end and a second end relative to each other. The handle assembly is arranged at the first end or the second end and is located at the bottom of the chassis. The handle assembly includes a handle portion and a grass comb portion, and a gap is provided between the handle portion and the chassis to form a handle groove, and the grass comb portion is provided on the side of the handle portion away from the handle groove. The moving wheel assembly is rotatably provided on the chassis to drive the self-moving device to move. In an embodiment of the present application, the handle assembly is provided at the bottom of the chassis, and the handle assembly includes a handle portion and a grass comb portion, and a gap is provided between the handle portion and the chassis to form a handle groove, and the grass comb portion is provided on the side of the handle portion away from the handle groove. On the one hand, the handle portion and the handle groove provide a gripping position for the self-moving device. When the self-moving device needs to be cleaned, repaired, etc., the user can flip the self-moving device by holding the handle portion, which reduces the difficulty of flipping the self-moving device and improves the user experience. On the other hand, the handle portion is provided at the bottom of the chassis. When the self-moving device is in normal use, During use, the handle is hidden by the chassis, which can avoid reserving additional setting space on the body of the self-moving equipment, making the structure of the self-moving equipment compact and the overall appearance of the self-moving equipment more beautiful; thirdly, when the self-moving equipment is driving, the grass combing part can comb the grass to be trimmed, so that the grass is straightened, pressed, and tilted in the same direction to facilitate cutting the grass and improve the flatness of the lawn after cutting; fourthly, the grass combing part is arranged on the handle, and the integrated design of the grass combing part and the handle can make the structure of the self-moving equipment more compact and improve the utilization rate of the chassis.

[0005] In one embodiment, the extending direction of the line between the first end and the second end is a first direction, and the direction perpendicular to the first direction is a second direction. In the second direction, the handle assembly is located in the middle area of ​​the chassis.

[0006] In the embodiment of the present application, the handle assembly is located in the middle area of ​​the chassis, which can improve the stability of the self-moving device when it is lifted or turned over by the handle, and prevent the self-moving device from tilting to one side.

[0007] In one embodiment, the handle portion is concavely arranged toward the handle groove.

[0008] In an embodiment of the present application, when the self-moving device encounters rain, water, etc., the water on the body will drip along the side of the handle portion near the first end when it slides down, which can prevent the water from flowing into the handle groove or into other positions of the chassis along the handle portion, so that the handle groove remains dry; on the other hand, the handle portion is concave to form a spacing groove. When the self-moving device mows the lawn, the grass rebounds and collides when passing through the spacing groove on the handle portion. During the collision, impurities on the grass (for example, relatively solid impurities such as soil, sand, and metal blocks) can be shaken off, thereby preventing the impurities from damaging the cutting parts of the self-moving device and improving the service life of the self-moving device.

[0009] In one embodiment, the chassis includes a main body and an extended side portion, the extended side portion is located at an edge of the main body and is protruded relative to the main body, and the handle assembly is constructed on the extended side portion.

[0010] In this embodiment of the present application, the extended side portions provide a barrier and protection function, preventing external debris from entering the bottom of the chassis and preventing the user's hands from reaching the bottom of the chassis from the sides, eliminating safety hazards. The main body and the extended side portions enclose a storage space. After the grass is combed into the storage space by the grass combing portion, it can remain upright within the storage space, facilitating cutting of the grass.

[0011] In one embodiment, the distance between the side of the handle portion away from the handle groove and the main body is a first distance, and the distance between the extended side portion and the main body is a second distance, and the first distance is smaller than the second distance.

[0012] In an embodiment of the present application, the first distance is smaller than the second distance, and the grass combing portion and the extended side portion at least partially overlap in the third direction, which can improve the structural compactness of the handle assembly and the extended side portion, and improve space utilization, so that the extended side portion can play a protective role while the grass combing portion can effectively comb the grass. In addition, it can also facilitate the user's hand to extend from the front end side of the chassis to the bottom of the chassis to grip the handle portion.

[0013] In one embodiment, the first end is the front end of the self-moving device, the second end is the rear end of the self-moving device, and the handle assembly is provided at the first end.

[0014] In the embodiment of the present application, the handle assembly is provided at the first end to facilitate the user to hold the handle portion and to facilitate the user to stand up the self-moving device from the ground, thereby turning the self-moving device over.

[0015] In one embodiment, the movable wheel assembly includes a first universal wheel and a second universal wheel, which are spaced apart from each other. The first universal wheel and the second universal wheel are respectively connected to a first wheel axle and a second wheel axle. The first wheel axle includes a first shaft segment rotatably connected to the chassis, and the second wheel axle includes a second shaft segment rotatably connected to the chassis. The handle assembly is located between the first shaft segment and the second shaft segment.

[0016] In the embodiment of the present application, on the one hand, the first universal wheel and the second universal wheel can facilitate the user to locate the position of the handle portion, so that the user can accurately extend his hand into the handle groove to hold the handle portion, and can avoid the user's hand from contacting the first universal wheel and the second universal wheel. On the other hand, when the self-moving device is used to mow the lawn, the first universal wheel and the second universal wheel can be prevented from rolling the grass combed by the grass combing portion, causing the grass to fall over, which is conducive to cutting the grass.

[0017] In one embodiment, the grass comb portion includes a plurality of comb teeth arranged at intervals, one end of the comb teeth is connected to the handle portion, and the other end of the comb teeth extends toward a side away from the handle portion.

[0018] In this embodiment of the present application, a passage is formed between two adjacent comb teeth, extending parallel or approximately parallel to the first direction X, to facilitate smooth passage of grass through the passage. As the grass passes through the passage, the sidewalls of the comb teeth can comb the grass, straightening it along the first direction, particularly straightening fallen or bent grass. This facilitates cutting and improves the cutting effect. The multiple comb teeth act as reinforcing ribs on the handle, thereby increasing the structural strength of the handle and, consequently, the overall structural strength of the handle assembly.

[0019] In one embodiment, the distance between two adjacent comb teeth is 10 mm to 30 mm.

[0020] In the embodiment of the present application, the distance between two adjacent comb teeth is greater than or equal to 10 mm, which can help the grass pass through the grass combing part smoothly and avoid obstruction of the grass; the distance between two adjacent comb teeth is less than or equal to 30 mm, which can help the grass to be combed and arranged along the first direction, reduce the angle between the length direction of the combed grass and the first direction, and improve the neatness of the combed grass, thereby improving the cutting effect of the grass.

[0021] In one embodiment, the width of the comb teeth is greater than or equal to 4 mm.

[0022] In the embodiment of the present application, the width of the comb teeth is greater than or equal to 4 mm, so as to ensure that the comb teeth have sufficient structural strength to avoid bending or breaking, while reducing the obstruction of the comb teeth themselves on the grass and improving the combing ability of the comb teeth on the grass. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments of the present application will be described below.

[0024] Figure 1 This is a schematic diagram of the structure of a mobile device provided by an embodiment of the present application at one viewing angle;

[0025] Figure 2 is a structural diagram of a mobile device provided by an embodiment of the present application from another perspective;

[0026] Figure 3 This is a schematic structural diagram of a chassis and handle assembly provided in an embodiment of the present application;

[0027] Figure 4 is a cross-sectional view of a chassis and handle assembly provided in an embodiment of the present application;

[0028] Figure 5 It is a cross-sectional view of the pulling means in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0030] As used herein, the terms "first," "second," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more.

[0031] In addition, in this article, directional terms such as "upper" and "lower" are defined relative to the orientation of the structure schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the structure.

[0032] An embodiment of the present application provides a self-moving device, comprising a chassis, a handle assembly, and a movable wheel assembly. The chassis has a first end and a second end opposite each other. The handle assembly is disposed at the first end or the second end and is located at the bottom of the chassis. The handle assembly includes a handle portion and a grass combing portion, wherein a gap is provided between the handle portion and the chassis to form a handle groove, and the grass combing portion is disposed on a side of the handle portion away from the handle groove. The movable wheel assembly is rotatably disposed on the chassis for driving the self-moving device to move.

[0033] In the embodiment of the present application, the handle assembly is arranged at the bottom of the chassis, and the handle assembly includes a handle part and a grass comb part. There is a gap between the handle part and the chassis to form a handle groove, and the grass comb part is arranged on the side of the handle part away from the handle groove. On the one hand, the handle part and the handle groove provide a holding position for the self-moving device. When the self-moving device needs to be cleaned, repaired, etc., the user can flip the self-moving device by holding the handle part, which reduces the difficulty of flipping the self-moving device and improves the user experience; on the other hand, the handle part is arranged at the bottom of the chassis. When the self-moving device is used normally, During use, the handle is hidden by the chassis, which can avoid reserving additional setting space on the body of the self-moving equipment, making the structure of the self-moving equipment compact and the overall appearance of the self-moving equipment more beautiful; thirdly, when the self-moving equipment is driving, the grass combing part can comb the grass to be trimmed, so that the grass is straightened, pressed, and tilted in the same direction to facilitate cutting the grass and improve the flatness of the lawn after cutting; fourthly, the grass combing part is arranged on the handle, and the integrated design of the grass combing part and the handle can make the structure of the self-moving equipment more compact and improve the utilization rate of the chassis.

[0034] Figure 1 1 is a schematic structural diagram of a mobile device 1000 provided in an embodiment of the present application at one viewing angle; Figure 2 is a structural diagram of the mobile device 1000 provided in an embodiment of the present application from another perspective; Figure 3 2 is a schematic structural diagram of the chassis 200 and the handle assembly 100 provided in an embodiment of the present application; Figure 4 It is a cross-sectional view of the chassis 200 and the handle assembly 100 provided in an embodiment of the present application.

[0035] The mobile device 1000 can be configured as a lawn mowing device, a pesticide spraying device, a crop harvesting device, a sweeping device, a transport device, etc. In the embodiment of the present application, the structure of the mobile device 1000 is described in detail by taking the mobile device 1000 configured as a lawn mowing device as an example.

[0036] The self-moving device 1000 includes a handle assembly 100, a chassis 200, and a moving wheel assembly 310. The moving wheel assembly 310 is rotatably disposed on the chassis 200 and is used to drive the self-moving device 1000 to move. The chassis 200 has a first end 201 and a second end 202 relative to each other. The handle assembly 100 is disposed at the first end 201 or the second end 202 and is located at the bottom of the chassis 200. When the self-moving device 1000 is placed on the ground, the handle assembly 100 is located on the side of the chassis 200 facing the ground. The handle assembly 100 is used to provide a gripping position for the user, so that the user can grasp the handle assembly 100 to perform related operations such as pulling, lifting, and flipping the self-moving device 1000.

[0037] The handle assembly 100 includes a handle portion 11 and a grass combing portion 12. The handle portion 11 is arranged at the bottom of the chassis 200. There is a gap between the handle portion 11 and the chassis 200 to form a handle groove 110. The handle portion 11 is used to provide a gripping position for the user, and the user's hand can be inserted into the handle groove 110 to grasp the handle portion 11. When the self-mobile device 1000 needs to be cleaned, repaired, etc., the user can use the handle portion 11 to pull, lift, and flip the self-mobile device 1000, which reduces the difficulty of flipping the self-mobile device 1000 and improves the user's experience of using the self-mobile device 1000. During normal use of the self-mobile device 1000, the handle portion 11 is arranged at the bottom of the chassis 200, so that the handle portion 11 can be hidden by the chassis 200, avoiding the need to reserve additional installation space on the body of the self-mobile device 1000, making the structure of the self-mobile device 1000 compact and the overall appearance of the self-mobile device 1000 more beautiful.

[0038] The grass combing portion 12 is provided on the side of the handle portion 11 away from the handle groove 110. When the self-moving device 1000 is normally placed on the ground, the grass combing portion 12 is located on the side of the handle portion 11 close to the ground. When the self-moving device 1000 is in motion, the multiple comb teeth 121 can stop external foreign objects, preventing foreign objects from entering the bottom of the chassis 200 and causing damage to the chassis 200. When the self-moving device 1000 is mowing the lawn, while the self-moving device 1000 is in motion, the grass combing portion 12 can comb the grass to be mowed, straightening the grass, and tilting it in the same direction to facilitate cutting the grass and improve the flatness of the lawn after cutting. In the embodiment of the present application, the grass combing portion 12 is provided on the handle portion 11. The integrated design of the grass combing portion 12 and the handle portion 11 can make the structure of the self-moving device 1000 more compact and improve the utilization rate of the chassis 200.

[0039] The line connecting the first end 201 and the second end 202 extends in a first direction X. The first end 201 represents the front end of the self-mobile device 1000, and the second end 202 represents the rear end of the self-mobile device 1000. In this embodiment, the handle assembly 100 is provided at the first end 201 to facilitate the user's gripping of the handle portion 11 and to facilitate the user's lifting and flipping of the self-mobile device 1000 from the ground.

[0040] In one embodiment, the handle assembly 100 may also be disposed at the second end 202 .

[0041] The direction perpendicular to the first direction X is the second direction Y. In the second direction Y, the handle assembly 100 is located in the middle area of ​​the chassis 200 to improve the stability of the self-moving device 1000 when the handle portion 11 is used to lift or flip the self-moving device 1000, and to prevent the self-moving device 1000 from tilting to one side.

[0042] In one embodiment, the mobile wheel assembly 310 includes a first universal wheel 311 and a second universal wheel 312 spaced apart from each other. The first universal wheel 311 and the second universal wheel 312 are spaced apart along the second direction Y. The first universal wheel 311 and the second universal wheel 312 are connected to a first axle 3111 and a second axle 3121, respectively. The first universal wheel 311 is rotatable relative to the first axle 3111. The second universal wheel 312 is rotatable relative to the second axle 3121. The first axle 3111 includes a first shaft section 3112 rotatably connected to the chassis 200. The second axle 3121 includes a second shaft section 3122 rotatably connected to the chassis 200.

[0043] The handle assembly 100 is located between the first shaft segment 3112 and the second shaft segment 3122. This allows the user to locate the handle portion 11 easily through the first and second universal wheels 311, 312, allowing the user to accurately insert their hand into the handle groove 110 to grip the handle portion 11, while preventing the user's hand from coming into contact with the first and second universal wheels 311, 312. Furthermore, when the self-mobile device 1000 is mowing a lawn, the first and second universal wheels 311, 312 are prevented from rolling over the grass combed by the grass combing portion 12, thereby facilitating grass cutting. The central region of the chassis 200 may be located at or near the perpendicular midline of the line connecting the first and second shaft segments 3112, 3122.

[0044] The chassis 200 includes a main body 21 and an extended side portion 22. The extended side portion 22 is located at the edge of the main body 21 and protrudes relative to the main body 21. A direction perpendicular to both the first direction X and the second direction Y is defined as the third direction Z. The extended side portion 22 protrudes relative to the main body 21 along the third direction Z. The extended side portion 22 provides a barrier and protective function, preventing external debris from entering the bottom of the chassis 200 and preventing a user's hand from reaching the bottom of the chassis 200 from the side, eliminating safety hazards.

[0045] The handle assembly 100 is constructed on the extended side portion 22. The extended side portion 22 has a relief groove formed at the position corresponding to the handle assembly 100, and the handle assembly 100 is positioned within the relief groove. The side ends of the handle assembly 100 are connected to the extended side portion 22. The main body 21 and the extended side portion 22 enclose a storage space. After being combed into the storage space by the grass combing portion 12, the grass remains upright within the space, facilitating grass cutting.

[0046] Along the third direction Z, the distance between the side of the handle portion 11 away from the handle groove 110 and the main body 21 is a first distance D1, and the distance between the extended side portion 22 and the main body 21 is a second distance D2. The first distance D1 is less than the second distance D2. In this way, the grass combing portion 12 and the extended side portion 22 at least partially overlap in the third direction Z, which can improve the structural compactness of the handle assembly 100 and the extended side portion 22 and enhance space utilization. While the extended side portion 22 provides protection, the grass combing portion 12 can effectively comb grass. Furthermore, it allows the user to easily reach from the front side of the chassis 200 to the bottom of the chassis 200 to grasp the handle portion 11.

[0047] In one embodiment, the handle assembly 100 and the extended side portion 22 can be integrally formed to simplify the structural complexity of the handle assembly 100 and the extended side portion 22 , reduce the difficulty of installing the handle assembly 100 , and reduce the manufacturing cost of the mobile device 1000 .

[0048] In one embodiment, the handle assembly 100 and the extended side portion 22 may be provided separately and fixedly connected together by bonding, snapping, screwing, welding, or fusing.

[0049] The handle 11 includes a pull member 111 and a connecting section 112. The connecting section 112 is connected to the chassis 200. The pull member 111 is connected to the connecting section 112. Two connecting sections 112 are provided. The pull member 111 is connected to the connecting section 112 at both ends along the left-right direction Y of the mobile device 1000. The connecting section 112 is connected to the extended side portion 22.

[0050] In one embodiment, the handle portion 111 and the connecting portion 112 can be integrally formed to simplify the structural complexity of the handle portion 11 , reduce the difficulty of installing the handle portion 11 , and reduce the manufacturing cost of the handle assembly 100 and the self-moving device 1000 .

[0051] In one embodiment, the pulling means 111 and the connecting section 112 may be provided separately and fixedly connected together by bonding, clamping, screwing, welding, or fusing.

[0052] The pull handle 111 and the connecting section 112 together form a handle groove 110. In this embodiment, the pull handle 111 is connected to the end of the connecting section 112 away from the main body 21, and the pull handle 111 is spaced apart from the main body 21. The pull handle 111 and the two connecting sections 112 are arranged in a roughly "C" shape. The handle groove 110 is located between the pull handle 111 and the chassis 200.

[0053] In one embodiment, the pulling means 111 can be connected to the main body 21, the handle groove 110 is opened in the middle of the pulling means 111, the handle groove 110 is spaced apart from the main body 21, and the pulling means 111 and the two connecting sections 112 are arranged roughly in a "mouth" shape.

[0054] Figure 5 2 is a cross-sectional view of the pulling means 111 in an embodiment of the present application.

[0055] In one embodiment, the surface of the handle 111 near the chassis 200 is configured as a guide surface 1110. The guide surface 1110 is inclined or curved in a direction away from the chassis 200. This configuration, on the one hand, prevents external debris from entering the handle groove 110. Due to the angle between the gravity acting on the debris and the support provided by the guide surface 1110, the component of gravity parallel or substantially parallel to the guide surface 1110 causes the debris to slide out of the handle groove 110 along the guide surface 1110, thereby reducing or preventing debris from entering and accumulating within the handle groove 110. On the other hand, as the self-propelled device 1000 moves, the chassis 200 experiences ground reaction forces, causing it to vibrate. This vibration can cause debris that lands on the guide surface 1110 to be shaken out of the handle groove 110. Furthermore, the guide surface 1110 facilitates the user's hand's insertion into the handle groove 110 and enhances the grip of the handle 111.

[0056] In one embodiment, along the third direction Z, the distance between the portion of the guide surface 1110 close to the first end 201 of the main body 21 and the main body 21 is smaller than the distance between the portion of the guide surface 1110 close to the second end 202 and the main body 21. In one embodiment, the guide surface 1110 may be inclined in a direction away from the chassis 200. In one embodiment, the guide surface 1110 may be curved in a direction away from the chassis 200. In one embodiment, a portion of the guide surface 1110 may be inclined in a direction away from the chassis 200, while another portion may be curved in a direction away from the chassis 200. The inclination angle or degree of curvature of the guide surface 1110 relative to the first direction X may be set according to actual needs and is not specifically limited in this application.

[0057] In one embodiment, the end of the pulling member 111 near the second end 202 is rounded to facilitate user gripping and improve the grip of the pulling member 111. The rounded corner of the end of the pulling member 111 can be smoothly transitioned to the guide surface 1110.

[0058] The handle portion 11 also includes a shielding structure 113. The shielding structure 113 is respectively connected to the pulling means 111, the connecting section 112 and the chassis 200. The shielding structure 113 is used to shield the opening of the handle groove 110 away from the second end 202. During the driving process of the self-moving device 1000, the shielding structure 113 can prevent external foreign objects (such as branches, leaves, sand and stones, etc.) from entering the handle groove 110. For example, the shielding structure 113 can prevent branches from penetrating into the handle groove 110, thereby preventing the self-moving device 1000 from being stuck by branches and causing difficulty in moving. In addition, the shielding structure 113 can also make the appearance of the self-moving device 1000 more complete and more beautiful. Among them, the handle groove 110 has an opening on the side close to the second end 202, and the user's hand can be inserted into the handle groove 110 through the opening to grip the pulling means 111.

[0059] In one embodiment, the handle portion 11 is recessed toward the handle groove 110. A spacing groove 1114 is formed on the handle portion 11. When the self-moving device encounters rain, water, etc., the water on the body will drip along the side of the handle portion close to the first end when it slides down, which can prevent the water from flowing into the handle groove or other positions of the chassis along the handle portion, so that the handle groove remains dry; on the other hand, when the self-moving device is mowing the lawn, when the grass passes through the spacing groove on the handle portion, the grass rebounds and collides, and during the collision, impurities on the grass (for example, relatively solid impurities such as soil, sand, and metal blocks) can be shaken off, thereby preventing the impurities from damaging the cutting parts of the self-moving device and improving the service life of the self-moving device.

[0060] The handle member 111 includes a handle body 1111 and a first protrusion 1112 and a second protrusion 1113 disposed on a side of the handle body 1111 facing away from the handle groove 110. The first protrusion 1112 and the second protrusion 1113 are spaced apart along a first direction X to form a spacing groove 1114. Along the first direction X, the first protrusion 1112 is located on a side of the second protrusion 1113 away from the second end 202. Along the third direction Z, the protrusion height of the first protrusion 1112 relative to the handle body 1111 is greater than or equal to the protrusion height of the second protrusion 1113 relative to the handle body 1111. In this way, on the one hand, when the self-moving device 1000 encounters rain, water, etc., the water on the body will drip along the first protrusion 1112 when sliding down, which can prevent the water from flowing into the handle groove 110 or other positions of the chassis 200 along the handle body 1111, so that the handle groove 110 remains dry; on the other hand, when the self-moving device 1000 mows the lawn, the grass is first bent toward the ground by the first protrusion 1112. After the grass passes through the first protrusion 1112, it rebounds when entering the spacing groove 1114 and collides with the second protrusion 1113. The protruding height of the first protrusion 1112 is greater than the protruding height of the second protrusion 1113, which can increase the force of the collision. During the collision, impurities on the grass can be shaken off, thereby preventing impurities from damaging the cutting parts of the self-moving device 1000 and improving the service life of the self-moving device 1000.

[0061] In one embodiment, the grass combing portion 12 and the handle portion 11 can be provided separately and fixedly connected together by bonding, clamping, screwing, welding, welding, etc. In one embodiment, the grass combing portion 12 and the handle portion 11 can also be provided as an integral unit.

[0062] In one embodiment, the grass combing portion 12 includes a plurality of comb teeth 121 arranged at intervals. The plurality of comb teeth 121 are arranged side by side along the second direction Y. One end of the comb teeth 121 is connected to the handle portion 11, and the other end of the comb teeth 121 extends toward a side away from the handle portion 11. An aisle is formed between two adjacent comb teeth 121, and the aisle extends in a direction parallel or approximately parallel to the first direction X, so that the grass can pass through the aisle smoothly. When the grass passes through the aisle, the side walls of the comb teeth 121 can comb the grass and straighten the grass along the first direction, especially straighten the fallen or bent grass, which is conducive to cutting the grass and improving the cutting effect. The plurality of comb teeth 121 can act as reinforcing ribs on the handle portion 11, thereby improving the structural strength of the handle portion 11, so that the overall structural strength of the handle assembly 100 is improved.

[0063] The distance between two adjacent comb teeth 121 is 10mm-30mm. A distance between two adjacent comb teeth 121 greater than or equal to 10mm can help the grass pass through the grass combing part 12 smoothly, avoiding obstruction of the grass; a distance between two adjacent comb teeth 121 less than or equal to 30mm can help the grass to be combed and arranged along the first direction X, reducing the angle between the length direction of the combed grass and the first direction X, and improving the neatness of the combed grass, thereby improving the cutting effect of the grass. The specific distance between two adjacent comb teeth 121 can be specifically set according to actual needs and is not specifically limited in this application. For example, the distance between two adjacent comb teeth 121 can be 10mm, 12mm, 15mm, 16mm, 20mm, 25mm, 30mm, etc.

[0064] The width of the comb teeth 121 is greater than or equal to 4 mm. This ensures that the comb teeth 121 have sufficient structural strength to prevent bending or breaking, while also reducing the obstruction of the comb teeth 121 on grass and improving the combing ability of the comb teeth 121. The width of the comb teeth 121 along the second direction Y can be set according to actual needs and is not specifically limited in this application. For example, the width of the comb teeth 121 can be 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 15 mm, 20 mm, etc. The protrusion height of the comb teeth 121 relative to the handle portion 11 along the third direction Z can be set according to actual needs and is not specifically limited in this application.

[0065] Along the first direction X, the width of the comb teeth 121 at the end closest to the handle portion 11 is greater than or equal to the width of the comb teeth 121 at the end away from the handle portion 11. In the embodiment of the present application, the width of the comb teeth 121 at the end closest to the handle portion 11 is greater than the width of the comb teeth 121 at the end away from the handle portion 11. This ensures sufficient structural strength of the comb teeth 121 while reducing the mass of the comb teeth 121 and making the grass comb portion 12 lightweight. In one embodiment, the width of the comb teeth 121 at the end closest to the handle portion 11 is equal to the width of the comb teeth 121 at the end away from the handle portion 11.

[0066] In one embodiment, the comb teeth 121 include a first side portion 1211, a second side portion 1212, and a middle portion 1213. The first side portion 1211 and the second side portion 1212 are arranged opposite to each other along a first direction X. The first side portion 1211 is located on a side of the second side portion 1212 closer to the second end 202. The middle portion 1213 is located between the first side portion 1211 and the second side portion 1212. The comb teeth 121 can be generally configured in a trapezoidal shape. The first side portion 1211 is inclined or curved relative to the handle portion 11 in a direction away from the second end 202. The second side portion 1212 is inclined or curved relative to the handle portion 11 in a direction closer to the second end 202. The inclination of the first side portion 1211 is greater than the inclination of the second side portion 1212, or the curvature of the first side portion 1211 is greater than the curvature of the second side portion 1212. In this way, when a user grips the pulling mechanism 111, the angle between the first side portion 1211 and the first direction X can be reduced, and the rounded corners at the connection between the first side portion 1211 and the middle portion 1213 can be increased. This facilitates the user's grip on the pulling mechanism 111, improves the grip, and reduces discomfort. Furthermore, if a foreign object enters the chassis 200, the greater inclination or curvature of the first side portion 1211 facilitates reversing the self-mobile device 1000 to separate the chassis 200 from the foreign object. Furthermore, the angle between the second side portion 1212 and the third direction Z can be reduced, thereby improving the second side portion 1212's ability to comb grass and block foreign objects.

[0067] In one embodiment, the inclination degree of the first side portion 1211 may be equal to the inclination degree of the second side portion 1212 , or the curvature degree of the first side portion 1211 may be equal to the curvature degree of the second side portion 1212 .

[0068] In one embodiment, the second side portion 1212 may extend parallel to the third direction Z.

[0069] In one embodiment, if Figure 2As shown, the self-mobile device 1000 also includes a cutting piece 320. The cutting piece 320 is installed on the chassis 200. The cutting piece 320 is arranged at the center of the chassis 200, or the cutting piece 320 is arranged near the center of the chassis 200. A groove 210 is provided on the chassis 200. The groove 210 extends along the first direction X and extends from the handle assembly 100 to the cutting piece 320. In this way, after the grass passes through the grass combing part 12, it can rebound to a certain extent in the groove 210 to increase the angle between the extension direction of the grass and the extension direction of the blade on the cutting piece 320, thereby facilitating the cutting of the grass by the cutting piece 320. Moreover, through the guiding and limiting effect of the groove 210, the grass can be kept in the state after being combed by the grass combing part 12, thereby improving the mowing effect of the cutting piece 320 on the lawn. In addition, when the grass rebounds in the groove 210 and collides with the chassis 200, impurities on the grass can be further shaken off. In this way, through the double shaking action of the spacing groove 1114 and the groove 210, the impurities attached to the grass can be fully shaken off, thereby avoiding the impurities from damaging the cutting piece 320 and improving the service life of the self-moving device 1000.

[0070] The groove 210 can be connected to the handle groove 110 to increase the gripping space of the handle groove 110, making it easier for the user to reach into the handle groove 110 and thus easier to grip. The width of the groove 210 along the left-right direction Y of the mobile device 1000 can correspond to the width of the handle groove 110 along the left-right direction of the mobile device 1000.

[0071] The above is a detailed introduction to the handle assembly and self-moving device provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and embodiments of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, based on the ideas of the present application, there will be changes in the specific embodiments and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A self-propelled device, characterized in that: include: a chassis having opposing first and second ends; a handle assembly, disposed at the first end or the second end and located at the bottom of the chassis, the handle assembly comprising a handle portion and a grass comb portion, a gap being defined between the handle portion and the chassis to form a handle groove, the grass comb portion being disposed on a side of the handle portion away from the handle groove; The moving wheel assembly is rotatably arranged on the chassis and is used to drive the self-moving device to move.

2. The self-moving device according to claim 1, characterized in that: The extending direction of the line between the first end and the second end is a first direction, and the direction perpendicular to the first direction is a second direction. In the second direction, the handle assembly is located in the middle area of ​​the chassis.

3. The self-moving device according to claim 1, characterized in that: The handle portion is concavely arranged toward the handle groove.

4. The self-moving device according to claim 1, characterized in that: The chassis includes a main body and an extending side portion. The extending side portion is located at an edge of the main body and is protruded relative to the main body. The handle assembly is constructed on the extending side portion.

5. The self-moving device according to claim 4, characterized in that: The distance between the side of the handle portion away from the handle groove and the main body is a first distance, and the distance between the extended side portion and the main body is a second distance, and the first distance is smaller than the second distance.

6. The self-moving device according to claim 1, characterized in that: The first end is the front end of the self-moving device, the second end is the rear end of the self-moving device, and the handle assembly is provided at the first end.

7. The self-moving device according to claim 1, characterized in that: The movable wheel assembly includes a first universal wheel and a second universal wheel arranged at an interval, the first universal wheel and the second universal wheel are respectively connected to a first wheel axle and a second wheel axle, the first wheel axle includes a first shaft segment rotatably connected to the chassis, the second wheel axle includes a second shaft segment rotatably connected to the chassis, and the handle assembly is located between the first shaft segment and the second shaft segment.

8. The self-moving device according to claim 1, characterized in that: The grass comb portion includes a plurality of comb teeth arranged at intervals, one end of the comb teeth is connected to the handle portion, and the other end of the comb teeth extends toward a side away from the handle portion.

9. The self-moving device according to claim 8, characterized in that: The distance between two adjacent comb teeth is 10mm-30mm.

10. The self-moving device according to claim 8, characterized in that: The width of the comb teeth is greater than or equal to 4 mm.

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