mowing machine

Abstract

Lawn mower, in particular robotic lawn mower, designed to move along a travel direction on a driving surface or a substrate, comprising a housing body, a mowing assembly and a handle section, wherein the mowing assembly is attached to the housing body; characterized in that the housing body comprises a housing, wherein the handle section is formed on a side surface of the housing and is designed as a strip-shaped component, wherein the handle section is provided with a tooth structure on a side facing the driving surface or the substrate, wherein the tooth structure comprises several tooth units, wherein the projection of a single tooth unit onto the driving surface or substratethe substrate is strip-shaped and has a first extension direction, wherein an angle between the first extension direction and the direction of travel is not equal to 90°, wherein a straight line extending parallel to the first extension direction and intersecting a center point of the handle section passes through the mowing assembly; wherein a plurality of tooth units are arranged at intervals or spaced apart from each other along a longitudinal direction of the handle section, wherein two adjacent tooth units are arranged along the longitudinal direction of the handle section at a first distance D1, wherein a minimum space between the orthogonal projections of two adjacent tooth units in a plane perpendicular to the direction of travel defines a second distance D2, wherein the ratio of the first distance D1 to the second distance D2 is greater than 1 and less than 5.

Description

Technical field

[0001] The present application relates, but is not limited to, the technical field of mowing devices, in particular a lawnmower, especially designed as a robotic mower. Background technology

[0002] Lawn mowers can be used in private gardens, parks, golf courses and other areas of lawn care, and serve to cut and maintain lawns.

[0003] The lawnmower comprises a handle and a scarifying attachment, with the scarifying attachment and the handle being mounted as two separate components on the lawnmower's housing. When transporting the lawnmower, the position of the separately mounted scarifying attachment can significantly affect the overall balance of the machine, impacting both comfort and portability. Furthermore, a gap exists between the mounted scarifying attachment and the handle, where mud and other particles kicked up during operation can easily become trapped and accumulate.These deposits, trapped in the gap, are difficult to remove, forcing the user to manually clear them from between the handle and the scarifying mechanism before each use. This makes operation cumbersome and inefficient. Furthermore, the cleaning process often causes abrasion on the handle and scarifying mechanism; neglecting to clean these components regularly will lead to corrosion and further damage. Content of the utility model

[0004] To solve the aforementioned technical problems, the present application provides a lawnmower that offers the advantages of an easy-to-grip handle, a handle position where mud or other contaminants are unlikely to accumulate, and a long service life for the handle and tooth structure. The present application is implemented through the following technical solution: In the first aspect, the embodiment of the present application provides a lawnmower comprising a housing body, a mowing assembly, and a handle section, wherein the mowing assembly is arranged on the housing body; wherein the housing body comprises a housing, wherein the handle section is formed on the side surface of the housing, wherein the handle section is a strip-shaped component, wherein the handle section is provided with a tooth structure on the side facing the driving surface, wherein the tooth structure comprises several tooth units, wherein the projection of a single tooth unit onto the driving surface is strip-shaped and has a first direction of extension, wherein the angle between the first direction of extension and the direction of travel is not equal to 90°, wherein the straight line which is parallel to the first direction of extension and passes through the center point of the handle section passes through the mowing assembly;wherein several tooth units are arranged at intervals along the longitudinal direction of the handle section, wherein two adjacent tooth units along the longitudinal direction of the handle section have a first distance D1, wherein the minimum distance between the orthogonal projections of two adjacent tooth units in the plane perpendicular to the direction of travel is a second distance D2, wherein the ratio of the first distance D1 to the second distance D2 is greater than 1 and less than 5.;

[0005] The lawnmower can move along the driving surface in the direction of travel and the lawnmower comprises a housing body and a handle section, wherein the housing body comprises a front side section and a rear side section in the direction of travel; wherein the handle section is a strip-shaped component and the handle section is provided with a tooth structure on the side facing the driving surface, wherein the tooth structure comprises several tooth units, wherein the projection of a single tooth unit onto the driving surface is strip-shaped and has a first extension direction, wherein the angle between the first extension direction and the longitudinal direction of the handle section is at least 75° and at most 105°, wherein the angle between the first extension direction and the driving direction is not equal to 90°, and wherein several tooth units are arranged at intervals along the longitudinal direction of the handle section;wherein two adjacent tooth units along the longitudinal direction of the handle section have a first distance D1, wherein the minimum distance between the orthogonal projections of two adjacent tooth units in the plane perpendicular to the direction of travel is a second distance D2, wherein the ratio of the first distance D1 to the second distance D2 is greater than 1 and less than 5.;

[0006] The technical solution of the present application provides that the housing of the lawnmower comprises a front side section and a rear side section, the rear side section being provided with a through-hole. This through-hole, together with the edge of the rear side section, forms a handle section, which serves as a gripping surface for the user. The side of the handle section facing the driving surface is provided with a toothed structure, the toothed structure comprising several tooth units. These tooth units can be used both as scarifying teeth and as channels that facilitate gripping for the user, thus improving stability when gripping the handle section.The straight line parallel to the first extension direction, passing through the center of the handle section, runs through the cutting assembly. This ensures that when holding the lawnmower, the grip direction is close to or coincides with the center of gravity of the cutting assembly, making it easier for the user to grip. Because the tooth structure is integrated into the handle section, both can be attached to the housing as a single unit, improving structural integrity and better positioning the center of gravity of the tooth structure and handle section. Less mud also accumulates between the tooth structure and the handle section, reducing wear and corrosion of both components. This extends the lifespan of both components and saves time cleaning debris, ultimately improving the overall user experience of the lawnmower.

[0007] The individual tooth unit extends along the first direction of extension, with the angle between the first direction of extension and the longitudinal direction of the handle section being within a reasonable range. The direction of extension of the tooth unit corresponds to the finger placement direction when the user grips the handle section, which facilitates gripping and also promotes the alignment of the tooth unit with the direction of travel to improve the scarifying effect.

[0008] The ratio between the first spacing D1 and the second spacing D2 is greater than 1, and the closer it is to 1, the more it indicates that the extension direction of the tine unit is closer to the direction of travel X, which facilitates the passage of the grass clippings through the spaces between adjacent tine units. In this case, the scarifying effect is significantly improved. Therefore, if user comfort is more important than scarifying efficiency, the ratio can be adjusted by regulating the extension direction of the handle section length so that it is greater than 1, but not close to 1. If the ratio is 1 or less, the tine unit will hinder the user's fingers instead of supporting them when inserting them, holding, and carrying the machine.The user's fingers must adapt to the extension direction of the tooth unit, and under the influence of the case body weight, prolonged holding leads to pressure on the nerves in the fingers from the tooth unit.

[0009] The ratio of the first spacing D1 to the second spacing D2 is less than 5, and the closer it is to 5, the larger the gap between adjacent tooth units, making it easier to insert the fingers. This results in a significantly improved user experience. If the user's demands on the machine's scarifying performance are higher than those for grip comfort, the ratio can be adjusted by changing the extension direction of the handle section so that it is less than 5, but not close to 5. If the ratio is 5 or higher, the tooth units almost completely block the entrance to the scarifying channel, preventing the grass from being properly scarified during the process and thus achieving no scarifying effect.In summary, with a D1 to D2 ratio greater than 1 and less than 5, the grass can easily pass through the spaces between adjacent tooth units, improving the scarifying effect and ensuring that the distance in the forward and backward directions remains small to guarantee the scarifying effect, while also facilitating the penetration of the fingers into the spaces, thus meeting the user's grip comfort requirements.

[0010] Optionally, the first extension direction forms an angle of at least 75° and at most 105° to the longitudinal direction of the handle section, wherein the longitudinal direction of the handle section forms a first angle with the direction of travel, the first angle being greater than 0°.

[0011] The technical solution of the present application provides that the longitudinal direction of the handle section forms a first angle with the direction of travel, the first angle being greater than 0°. The longitudinal direction of the handle section is adjusted so that it forms an angle greater than 0° to the direction of travel. This prevents the handle section and the tooth units from being arranged parallel to the direction of travel, ensuring that the extension direction of the tooth units forms an appropriate angle to the direction of travel. This allows the grass clippings to easily enter the spaces between adjacent tooth units and ensures the proper functioning of the scarifying process. At the same time, the angled handle section more closely corresponds to the ergonomic grip of humans, making it easier for the user to lift or move the lawnmower and improving ease of use and the overall user experience.

[0012] The projections of two adjacent tooth units in the plane perpendicular to the longitudinal direction of the handle section overlap at least partially. This partial overlap of projections creates a continuous and dense scarifying zone across the width of the handle section. This prevents blind spots and improves the uniformity and effectiveness of the scarifying on the grass.

[0013] In some embodiments of the present application, the longitudinal direction of the strip-shaped component forms a first angle with the direction of travel, wherein the first angle is at least 30° and at most 60°. The first angle formed between the longitudinal direction of the strip-shaped component and the direction of travel is set within a suitable range to meet the requirements for the arrangement of the handle section at various positions on the housing body and to facilitate the user's lifting of the lawnmower via the handle section.

[0014] In some embodiments of the present application, the side of the handle section facing the through-hole is designed as the first handle surface; wherein a scarifying channel is formed between adjacent tooth units, wherein the direction of passage of the scarifying channel is perpendicular to the longitudinal direction of the handle section, wherein the side of the handle section facing the driving surface is designed as the second handle surface, wherein the second handle surface is connected to the first handle surface.

[0015] The technical solution of the present application provides that the side of the handle section corresponding to the through-hole is designed as the first gripping surface, wherein the first gripping surface is relatively flat, which makes it easier for the user to grasp; wherein the adjacent tooth units form a scarifying channel, which facilitates the passage of the grass body, wherein the direction of passage of the scarifying channel is perpendicular to the longitudinal direction of the handle section, thus enabling the user to extend their fingers into the scarifying channel when grasping the handle section; wherein the surface of the handle section corresponding to the scarifying channel is designed as the second gripping surface, wherein the second gripping surface is connected to the first gripping surface to make it easier for the user to grasp the handle section and to improve the fit between the palm and fingers with the handle section, thereby increasing the gripping effect.

[0016] In some embodiments of the present application, the tooth assembly is integrally formed with the handle section. This integrated design of the tooth assembly and handle section ensures improved structural integrity, contributing to increased structural strength. The centers of gravity of the tooth assembly and handle section are thus more effectively positioned. Furthermore, it is not necessary to mount the tooth assembly and handle section separately to the housing body, which significantly simplifies disassembly and maintenance. In addition, there are no assembly gaps between the integrated tooth assembly and handle section, making it more difficult for deposits to form. This reduces wear and corrosion of the tooth assembly and handle section, extends their service life, and saves time in removing deposits.

[0017] In some embodiments of the present application, the lawnmower also includes a cutting assembly, wherein the handle section is located at the rear of the housing body relative to the cutting assembly. In other words, the toothed unit on the handle section serves to sort the cut grass to make the lawn more uniform and aesthetically pleasing, thereby improving the beautifying effect of the lawnmower on the lawn.

[0018] In some embodiments of the present application, the housing body comprises a first side section and a second side section along a direction parallel to the driving surface and perpendicular to the direction of travel; the number of handle sections is two, with the two handle sections being arranged on the first and second side sections of the housing body, respectively. The user can use one or both as needed, which facilitates handling; in addition, the tooth units on the two handle sections can each scarify the grass body that passes through the first and second side sections, thereby improving the uniformity of the scarifying.

[0019] In some embodiments of the present application, the two handle sections are arranged symmetrically with respect to the central axis of the main housing body in the direction of travel. The symmetrically arranged two handle sections favor the distribution of the center of gravity of the housing body; furthermore, the symmetrically arranged handle sections make it easier for the user to apply force evenly and to lift the lawnmower; the handle sections are arranged symmetrically, and the tooth units located thereon are also symmetrical with respect to this central axis in order to ensure a balanced scarifying effect of the two tooth structures.

[0020] In the second aspect, the embodiment of the present application provides a lawnmower, wherein the housing body comprises a housing, wherein the handle section is formed on the side surface of the housing, wherein the housing has a limiting section on one side of the handle section, wherein the handle section is a strip-shaped component, wherein the handle section is provided with a tooth structure on the side facing the driving surface, wherein the tooth structure comprises several tooth units; wherein several tooth units are arranged at intervals along the longitudinal direction of the handle section, wherein two adjacent tooth units have a first distance D1 along the longitudinal direction of the handle section, wherein the minimum distance between the orthogonal projections of two adjacent tooth units in the plane perpendicular to the direction of travel is a second distance D2.wherein the ratio of the first distance D1 to the second distance D2 is greater than 1 and less than 5, the limiting section forming an auxiliary gripping surface, the auxiliary gripping surface extending along the longitudinal direction of the grip section. The mower assembly comprises at least a lowest first cutting height and a second cutting height above the first cutting height, the lowest point of the tooth unit being below the first cutting height. By adjusting the ratio between the first and second distances, the user can be able to insert their fingers between the tooth units. At the same time, the length of the scarifying teeth can be ensured, thus enabling scarifying support for mower assemblies of varying heights.

[0021] The technical solution of the present application provides that the limiting section is a through hole or a groove; wherein the gripping section is formed between the limiting section and the edge of the side section of the housing body, wherein the side of the gripping section facing the limiting section is formed as the first gripping surface; wherein the side of the gripping section facing the driving surface is formed as the second gripping surface, wherein the second gripping surface is connected to the first gripping surface.

[0022] The arrangement of the through-hole or groove, where the through-hole or groove forms a handle section with the edge of the housing, facilitates gripping for the user. This not only simplifies holding but also creates a suitable angle between the direction of extension of the tines and the direction of travel, thus improving the scarifying effect. The longitudinal direction of the handle section forms a specific angle with the direction of travel, preventing poor or no scarifying effect caused by the handle section being parallel to the direction of travel. The arrangement of the through-hole or groove in the housing reduces the manufacturing costs of the handle, allowing the housing, handle, and scarifying tines to be manufactured as a single, molded part.The auxiliary grip surface extends along the longitudinal direction of the handle section, so that the user's palm rests against the auxiliary grip surface when handling the handle. This aligns the grip direction with the weight distribution of the heavy mower components, making it easier for the user to hold the handle.

[0023] In some embodiments of the present application, the opening direction of the through-hole is parallel to the longitudinal direction of the handle section. The length of the through-hole can be designed to be relatively long without compromising the strength of the housing, thereby facilitating handling for the user.

[0024] The technical solution of the present application provides that the side of the handle section corresponding to the boundary section is designed as the first gripping surface, wherein the first gripping surface is relatively flat, which makes it easier for the user to grip; wherein the adjacent tooth units form a scarifying channel, which facilitates passage from the grass body, wherein the direction of passage of the scarifying channel is perpendicular to the longitudinal direction of the handle section, thereby enabling the user to extend their fingers into the scarifying channel when gripping the handle section;wherein the surface of the handle section corresponding to the scarifying channel is designed as a second gripping surface, wherein the second gripping surface is connected to the first gripping surface to make it easier for the user to grasp the handle section and to improve the fit between the palm and fingers with the handle section, thereby increasing the gripping effect.; Illustration of the attached figures Fig. Figure 1 is a schematic structural view of the side of the lawnmower facing the driving surface according to an embodiment of the present application; Fig. 2 is a partially schematic structural view of the rear side section of the lawnmower according to an embodiment of the present application; Fig. Figure 3 is a schematic representation of the first distance and the second distance of the lawnmower according to an embodiment of the present application; Fig. Figure 4 is a schematic structural view of the first grip surface and the second grip surface of the lawnmower according to an embodiment of the present application; Fig. Figure 5 is a schematic representation of an arrangement with multiple handle sections of the lawnmower according to an embodiment of the present application.

[0025] In the figures, identical reference symbols denote identical or equivalent elements or groups of elements. Housing body Specific designs

[0026] To clarify the purpose, technical solutions, and advantages of the embodiments of the present application, the various embodiments of the present application are described in detail below in conjunction with the accompanying drawings. The following exemplary embodiments serve to illustrate the application but are not intended to limit its scope.

[0027] In the embodiment of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be interpreted as indicating or implying a relative meaning, or as an implicit indication of the number of technical features referred to. Thus, a feature designated as "first" and "second" may explicitly or implicitly include one or more such features. In the description of the embodiment of the present application, "several" means two or more, unless otherwise specified.

[0028] Furthermore, in the embodiment of the present application, the directional terms "top", "bottom", "left", and "right" are defined relative to the schematic arrangement of the components in the figures. It should be understood that these directional terms represent relative concepts used for relative description and clarification, and that they may change accordingly if the arrangement of the components in the figures changes.

[0029] In the embodiment of the present application, unless expressly stated and defined otherwise, the term "connection" is to be understood in the broadest sense; for example, the "connection" may be a fixed connection, a detachable connection or a unit; it may be a direct connection or an indirect connection via an intermediate medium.

[0030] In the embodiment of the present application, the term "comprise," "contain," or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a set of elements includes not only those elements but also other elements not expressly listed or inherent in such process, method, article, or device. In the absence of further limitations, elements defined by the phrase "comprises a..." do not preclude the presence of additional identical elements in the process, method, article, or device that comprise the elements.

[0031] In the embodiment of the present application, terms such as "exemplary" or "for example" are used to present examples, illustrations, or explanations. Embodiments or design variants designated as "exemplary" or "for example" in the embodiment of the present application are not to be interpreted as being preferred or more advantageous than other embodiments or design variants. More precisely, the terms "exemplary" or "for example" serve to present the corresponding concepts in a concrete manner.

[0032] The embodiment of the present application provides a lawnmower, wherein lawnmowers can be used in private gardens, parks, golf courses and other areas of lawn care and serve for cutting and maintaining lawns. Lawnmowers can be designed in the form of an internal combustion engine, an electric motor or a hybrid drive.

[0033] In some technical designs, the lawnmower incorporates a handle and a scarifying mechanism. The scarifying mechanism serves to scarify the grass, facilitating cutting or resulting in a neater, more aesthetically pleasing cut. The handle allows the user to grip the lawnmower for lifting and transport. The scarifying mechanism and the handle are mounted as two separate components on the lawnmower's housing. The position of the scarifying mechanism's center of gravity relative to the lawnmower must be considered to ensure a comfortable and secure grip.The assembly process is relatively complex, and after assembly, the handle structure and the scarifying mechanism are rather loosely connected, creating a gap between the two components. During operation, mud and other particles can easily become trapped in this gap, leading to the formation of deposits. These deposits are difficult to remove, requiring the user to clear them from between the handle structure and the scarifying mechanism before each use, making operation cumbersome and inefficient. Furthermore, the cleaning procedure often causes abrasion on the handle structure and the scarifying mechanism; neglecting to clean them regularly will result in additional corrosion damage to these components.

[0034] Before the embodiments of the present application are explained in more detail, the terms and terminology used in the embodiments of the present application will be explained. The terms and terminology used in the embodiments of the present application are to be understood according to the following definitions. 1) Driving surface: The surface or ground on which the lawnmower rests and moves, and with which the lawnmower's chassis is in contact during operation. For example, when operating a lawnmower on a lawn, the lawn surface can be considered the driving surface. It should be explained that the driving surface can be either a horizontal plane or a plane inclined relative to the horizontal. 2) Direction of travel: The direction of travel refers to the direction in which the lawnmower moves along the cutting area and can also be understood as the direction in which the rear section of the lawnmower points towards the front side section. While the lawnmower is performing its mowing duties, the front side section points towards the grass to be cut, while the rear section points towards the grass that has already been cut; in other words, as the lawnmower moves forward, the front side section moves ahead of the rear section into the cutting area. 3) Through-hole: A through-hole is a through-opening in a component, wherein the through-hole has two openings, these two openings being located on different surfaces of the component, usually on opposite faces of the component. The axis of extension of the through-hole is a straight line or approximately a straight line that runs perpendicular or nearly perpendicular to the surface with the opening. 4) Longitudinal direction: This is the principal direction of extension of the component in space, where the component's longitudinal dimension is larger than its dimensions in other directions. An example is a rectangular structure where the longitudinal direction of the component runs parallel to the longest edge of its dimensions; another example is a column-shaped component where the longitudinal direction of the component runs parallel to its central axis. 5) Spacing arrangement (arranged at intervals): This refers to the arrangement of several components in a row, where there is a gap between two adjacent components and they are not closely aligned. An example is several tooth units of a tooth structure arranged linearly, with a gap between two adjacent tooth units. 6) Central axis: This is the axis that passes through the geometric center of the component. Using the housing of a lawnmower as an example, the lawnmower has a central axis parallel to the direction of travel and a central axis perpendicular to the direction of travel. The central axis perpendicular to the direction of travel can be either parallel to or perpendicular to the driving surface.

[0035] With reference to Fig. 1, Fig. 2 and Fig. 3 provides an embodiment of the present application, a lawnmower that can move along the direction of travel X on the driving surface M, wherein the lawnmower comprises a housing body 100, the housing body 100 comprising a front side section 110 and a rear side section 120 along the direction of travel X; wherein a through-hole 130 is provided in the housing body 100, the through-hole 130 being arranged in the rear side section 120 of the housing body 100, the handle section 140 being formed between the through-hole 130 and the edge of the rear side section 120 of the housing body 100;wherein the handle section 140 is a strip-shaped component and the handle section 140 is provided on the side facing the driving surface with a tooth structure 150, wherein the tooth structure 150 comprises several tooth units 151, wherein the projection of a single tooth unit 151 onto the driving surface M is strip-shaped and has a first extension direction F1, wherein the angle between the first extension direction F1 and the longitudinal direction of the handle section 140 is at least 75° and at most 105°, wherein the angle between the first extension direction F1 and the direction of travel X is not equal to 90°, wherein several tooth units 151 are arranged at intervals along the longitudinal direction of the handle section 140; wherein the projections of two adjacent tooth units 151 overlap at least partially in the plane that is perpendicular to the longitudinal direction of the handle section 140;wherein two adjacent tooth units 151 have a first distance D1 along the longitudinal direction of the handle section 140, wherein the minimum distance between the orthogonal projections of two adjacent tooth units 151 perpendicular to the plane of the direction of travel X is a second distance D2, wherein the ratio of the first distance D1 to the second distance D2 is greater than 1 and less than 5.;

[0036] In the embodiment of the present application, the housing body 100 can comprise a housing, a chassis, a power supply device, an electronic control assembly, and the like, wherein the housing serves for mounting and supporting the mower assembly 200 of the lawnmower. The chassis is attached to the bottom of the housing and can include drive wheels, casters, etc. A limiting section is provided on the rear or front side section of the housing body, the limiting section forming a grip section together with the edges of the rear or front side section. With respect to the driving surface, the mower assembly comprises at least M a lowest first cutting height and a second cutting height above the first cutting height, wherein the lowest point of the tooth assembly is below the first cutting height.

[0037] The power supply unit and the electronic control unit are housed within the casing and protected by it. The power supply unit provides power to the mower assembly 200, the chassis, and other components; the electronic control unit controls the mower assembly 200, the chassis, and other functions. Furthermore, the electronic control unit can interact with the user and communicate with external devices.

[0038] In the embodiment of the present application, the front side section of the housing body 100 is located on the front side along the direction of travel X, wherein the front side section can be equipped with structures such as obstacle detection radar and environmental monitoring cameras; wherein it is located on the rear side of the housing body 100 along the direction of travel X and can be provided with navigation assemblies, charging units and similar structures.

[0039] In the embodiment of the present application, the limiting section comprises a through-hole and / or a limiting groove, or the groove direction of the limiting groove is arranged perpendicular to the driving surface. The limiting groove is an elliptical groove, a raceway-shaped groove, or a round groove. The limiting section forms an auxiliary gripping surface, wherein the auxiliary gripping surface is formed on the side wall of the through-hole or the side wall of the limiting groove. The auxiliary gripping surface extends substantially parallel to the longitudinal direction of the handle section and thus extends along the longitudinal direction of the handle section, so that the user's palm can lie close to the auxiliary gripping surface when gripping the handle section.

[0040] In the embodiment of the present application, the through-hole 130 can be a hole with a uniform diameter, a hole with a variable diameter, or a stepped hole, wherein the radial cross-section of the through-hole 130 can have a circular, elliptical, track-shaped, triangular, square, trapezoidal, or other regular or irregular shape. In some examples, the through-hole 130 is an elliptical hole with a uniform diameter, wherein the axis of extension of the through-hole 130 is arranged perpendicular to the driving surface M in order to facilitate the user's insertion of their hand through the through-hole 130 to grasp the handle section 140.

[0041] In the embodiment of the present application, the handle section 140 designates a structure that serves for gripping by the user or a mechanical gripper. The handle section 140 is formed between the through-hole 130 and the edge of the rear side section 120 of the housing body 100, and specifically refers to the inner wall on one side of the through-hole 130 as well as the surface of the housing body 100 facing away from the inner wall of that side of the through-hole 130; these surfaces all forming the surface of the handle section 140. In the example of the user grip, some of the user's fingers extend through the through-hole 130, with the fingers and palm enclosing the handle section 140. This allows force to be exerted on the handle section 140 from several directions, enabling the user to lift the lawnmower using the handle section 140.

[0042] In the embodiment of the present application, the term "strip-shaped component" refers to a component with a strip-shaped form. The strip-shaped component may have a polyhedral structure, for example, a right prism (where the edges are straight lines and the faces are planar) or a curved prism (where the edges are curves and the faces are curved surfaces). The strip-shaped component may also be a cylinder or elliptical cylinder, wherein the longitudinal direction of the strip-shaped component is parallel to the central axis of the prism or cylinder.

[0043] In the embodiment of the present application, the tooth structure 150 refers to a structure consisting of several depressions and protrusions, wherein the depressions and protrusions are arranged alternately. The protrusion can be referred to as a tooth unit 151, wherein a depression is formed between two adjacent tooth units 151, the depression serving as a channel for other objects to pass through. In some examples, the tooth structure 150 serves as a scarifying structure, wherein depressions allow grass particles to pass through, thus achieving scarification of the lawn.

[0044] In the embodiment of the present application, the angle between the first extension direction F1 and the longitudinal direction of the handle section 140 is a second angle β. If the second angle β is close to 90°, the extension direction of the tooth unit 151 more closely corresponds to the direction in which the user places their fingers when gripping the handle section 140, thus making it easier for the user to grip the handle section 140. If, on the other hand, the second angle β is in the range of 75° to 105°, this favors a suitable angle between the extension direction of the tooth unit 151 and the direction of travel X, which improves the scarifying effect.

[0045] Optionally, the straight line that is parallel to the first extension direction and crosses the center point of the handle section passes through the mowing assembly, with the center point of the handle section being the middle position in the longitudinal direction of the handle section.

[0046] The handle section is located in front of the mower assembly and the handle section is located behind the front wheel.

[0047] In the embodiment of the present application, the second angle β is at least 75° and at most 105°. In some examples, the second angle β is at least 75° and at most 90°; the second angle β may, for example, be 75°, 80°, 85°, or 90°. In other examples, the second angle β lies between at least 85° and at most 95°; the second angle β may be 85°, 90°, or 95°. In further examples, the second angle β lies between at least 90° and at most 105°; the second angle β may be 90°, 95°, 100°, or 105°.

[0048] In the embodiment of the present application, the angle between the first extension direction F1 and the direction of travel X is the third angle γ, wherein the third angle γ is not equal to 90°. The third angle γ can be at least 0° and less than 90°, for example 0°, 30°, 45°, 60°, 75°, etc.; the third angle γ can also be greater than 90° and at most 180°, for example 105°, 120°, 150°, 180°, etc. It is understandable that in the case of a third angle γ of 0° or 180°, the extension direction of the tooth unit 151 runs parallel to the direction of travel X.

[0049] In the embodiment of the present application, the structure of the tooth unit 151 can be a plate structure, a rod structure, or the like. The structures of several tooth units 151 can be identical or different. The multiple tooth units 151 are arranged at intervals along the longitudinal direction of the handle section 140, the distances between two adjacent tooth units 151 being the same or different. In some examples, several tooth units 151 have the same structure and are arranged at equal intervals.

[0050] In the embodiment of the present application, a projection is made in a plane perpendicular to the longitudinal direction of the handle section 140, i.e., projection along the longitudinal direction of the handle section 140, wherein the projections of two adjacent tooth units 151 overlap at least partially. It may be that one of the two tooth units 151 is smaller, while the other is larger; or one of the two tooth units 151 is located near the edge of the housing body 100, the other near the through-hole 130, but they are not completely offset; or the two tooth units 151 have the same structure and size and their projections completely overlap.

[0051] In the embodiment of the present application, the minimum distance between the orthogonal projections of two adjacent tooth units 151 specifically denotes the distance between the projections along the direction of travel X, wherein the projections of the adjacent tooth units 151 do not overlap. It can also be understood that the tooth unit 151 comprises a first end near the through-hole 130 and a second end near the edge of the housing body 100. The distance corresponds to the projection distance between the first end of one tooth unit 151 and the second end of another tooth unit 151 along the X-direction.

[0052] In the embodiment of the present application, the ratio of the first distance D1 to the second distance D2 is small, indicating that the direction of extension of the tooth unit 151 is closer to the direction of travel X, which facilitates the passage of the grass body through the spaces between adjacent tooth units 151 and contributes to improving the scarifying effect; a large ratio of the first distance D1 to the second distance D2 indicates that adjacent tooth units 151 have larger spaces, which facilitates finger penetration and thus improves the user experience when gripping the handle section 140.

[0053] In the embodiment of the present application, the ratio of the first distance D1 to the second distance D2 is greater than 1 and less than 5. In some examples, the ratio of the first distance D1 to the second distance D2 is greater than 1 and at most 3, for example 1.1, 1.5, 2.0, 2.5, 3; in other examples, the ratio of the first distance D1 to the second distance D2 is at least 2 and at most 4, for example 2.0, 2.5, 3.0, 3.5, 4.0; in further examples, the ratio of the first distance D1 to the second distance D2 is at least 3 and less than 5, for example 3.0, 3.5, 4.0, 4.5, 4.9.

[0054] In the technical concept of the embodiment of the present application, the housing body 100 of the lawnmower comprises a front side section 110 and a rear side section 120, and the rear side section 120 is provided with a through-hole 130, wherein the through-hole 130 together with the edge of the rear side section 120 forms a handle section 140, the handle section 140 serving as a grip for the user. The side of the handle section 140 facing the driving surface M is provided with a toothed structure 150, the toothed structure 150 comprising several tooth units 151. These tooth units 151 can be used both as scarifying teeth and as channels that facilitate gripping for the user and thus improve stability when gripping the handle section 140.

[0055] In another embodiment, the handle section is formed on the side surface of the housing, wherein the housing forms a boundary section on the side of the handle section, the boundary section being a through hole or a groove; wherein the handle section is formed between the boundary section and the edge of the side section of the housing body, the side of the handle section facing the boundary section being formed as the first handle surface; wherein the side of the handle section facing the driving surface being formed as the second handle surface, the second handle surface being connected to the first handle surface.

[0056] Since the tooth structure 150 is integrated into the handle section 140, both can be attached as a single unit to the housing body 100, thus improving structural integrity and positioning the center of gravity more effectively, thereby enhancing the user experience during transport. Less mud also accumulates between the tooth structure 150 and the handle section 140, reducing wear and corrosion of the tooth unit 151 and the handle section 140 caused by deposits. This increases the service life of both the tooth unit 151 and the handle section 140 and also saves time on debris removal, thus improving the overall user experience of the lawnmower.

[0057] The individual tooth unit 151 extends along the first extension direction F1, with the angle between the first extension direction F1 and the longitudinal direction of the handle section 140 being within a reasonable range. The extension direction of the tooth unit 151 corresponds to the finger placement direction when the user grips the handle section 140, which facilitates gripping and also promotes the extension direction of the tooth unit 151 forming a suitable angle to the direction of travel X to improve the scarifying effect.

[0058] The ratio between the first spacing D1 and the second spacing D2 of adjacent tooth units 151 is set within a suitable range to facilitate the penetration of the grass through the spaces between the adjacent tooth units 151, thus improving the scarifying effect, and to provide sufficient space for finger insertion, thereby improving the user experience when gripping the handle section 140. In one embodiment, the handle section 140 is optionally arranged on the front side section of the housing body, so that the grass is first guided by the tooth structure 150 attached to the handle section 140, and then the mowing is carried out by the mowing assembly.

[0059] In some embodiments of the present application, with reference to Fig. 1 The longitudinal direction of the strip-shaped component forms a first angle α with the direction of travel X, where the first angle α is at least 30° and at most 60°. In some embodiments, the first angle α is greater than 0°.

[0060] In the embodiment of the present application, the user grasps the strip-shaped component to operate the lawnmower. The direction of the interaction force between the user and the lawnmower is perpendicular to the longitudinal direction of the strip-shaped component. The first angle α is set within a suitable range such that the direction of the interaction force between the user and the lawnmower passes through or near the central area of ​​the lawnmower; for example, the diagonal of the housing body 100 is perpendicular to the axis of the strip-shaped component.

[0061] In the embodiment of the present application, the following applies: The closer the first angle α, formed between the longitudinal direction of the strip-shaped component and the direction of travel X, is to 30°, the closer the handle section 140 is to the central axis of the housing body 100 along the direction of travel X. This brings the direction of the interaction forces between the user and the lawnmower closer to the rear side section 120 of the housing body 100, which helps to shift the lawnmower's counterweight to the rear and reduce drifting and slipping during movement. The closer the first angle α is to 45°, the closer the axis of the interaction forces between the user and the lawnmower is to the lawnmower's center of gravity when gripping the handle section 140, which makes it easier for the user to lift the lawnmower.The closer the first angle α is to 60°, the closer the first extension direction F1 of the tooth unit 151 is to the direction of travel X, while simultaneously maintaining the vertical to the longitudinal direction of the handle section 140. This facilitates both the user's gripping of the handle section 140 and the passage of the grass body through the spaces of the tooth unit 151.

[0062] In the embodiment of the present application, the first angle α is at least 30° and at most 60°. In some examples, the first angle α is between at least 30° and at most 50°, for example 30°, 35°, 40°, 45° or 50°; in other examples, the first angle α is at least 40° and at most 60°, for example 40°, 45°, 55° or 60°.

[0063] In the technical concept of the embodiment of the present application, the first angle α, which is formed between the longitudinal direction of the strip-shaped component and the direction of travel X, is set in a suitable range in order to meet both the requirements for the arrangement of the handle section 140 at different positions of the housing body 100 and to make it easier for the user to lift the lawnmower over the handle section 140.

[0064] In some embodiments of the present application, with reference to Fig. 4 The side of the handle section 140 facing the through hole 130 is designed as the first handle surface 141; wherein a scarifying channel 152 is formed between adjacent tooth units 151, wherein the direction of passage of the scarifying channel 152 is perpendicular to the longitudinal direction of the handle section 140, wherein the side of the handle section 140 facing the driving surface M is designed as the second handle surface 142, wherein the second handle surface 142 is connected to the first handle surface 141.

[0065] In the embodiment of the present application, the handle section 140 is oriented towards the side of the through-hole 130, that is, the through-hole 130 is located near the inner wall surface of the handle section 140. In other words, the user's hand passes through the through-hole 130 to grasp the handle section 140, and the first gripping surface 141 can be a flat surface, a curved surface, or the like. In some examples, the first gripping surface 141 is a flat surface, and the transition between the first gripping surface 141 and the adjacent gripping surface is provided by a curved surface to facilitate gripping for the user.

[0066] In the embodiment of the present application, the grip section 140 forms a second gripping surface 142 on the side facing the driving surface M. In other words, the tooth unit 151 is arranged on the second gripping surface 142, and a grippable surface is located between two adjacent tooth units 151. The second gripping surface 142 can be either a flat or a curved surface.

[0067] In the embodiment of the present application, the first gripping surface 141 and the second gripping surface 142 can be designed either as smooth surfaces or as patterned surfaces to increase friction and provide the user with improved grip.

[0068] In the embodiment of the present application, a scarifying channel 152 is formed between two adjacent tooth units 151. During the mowing process, the scarifying channel 152 allows the grass to pass through, enabling the tooth units 151 to scarify. The inner wall of the scarifying channel 152 also forms part of the second gripping surface 142. When the lawnmower needs to be moved, the user's fingers can be guided through the scarifying channel 152, with the tooth units 151 providing support to the fingers to improve grip.

[0069] In the technical concept of the embodiment of the present application, the side of the handle section 140 corresponding to the through-hole 130 is designed as the first gripping surface 141, wherein the first gripping surface 141 is relatively flat, which makes it easier for the user to grip; wherein the adjacent tooth units 151 form a scarifying channel 152, which facilitates the passage of the grass body, wherein the direction of passage of the scarifying channel 152 is perpendicular to the longitudinal direction of the handle section 140, which enables the user to extend their fingers into the scarifying channel 152 when gripping the handle section 140;wherein the surface of the handle section 140 corresponding to the scarifying channel 152 is designed as a second handle surface 142, wherein the second handle surface 142 is connected to the first handle surface 141 to make it easier for the user to grip the handle section 140 and to improve the fit between the palm and fingers with the handle section 140, thereby increasing the gripping effect.

[0070] In some embodiments of the present application, with reference to Fig. 1, Fig. 3 and Fig. 4 the tooth unit 151 is integratively shaped with the handle section 140.

[0071] In the embodiment of the present application, the term "integrally formed" means that the individual parts of the component are formed into a complete structure in a single machining step, without the need for additional assembly, and the integrally formed parts may be made of the same or different materials. Integral forming can be carried out by injection molding, pressing, casting, thermoforming or other processes, and this is not limited in the embodiment of the present application.

[0072] In the technical concept of the embodiment of the present application, the integrated design of the tooth units 151 and the handle section 140 ensures better structural integrity, which contributes to increased structural strength, allowing for a more advantageous positioning of the center of gravity. Furthermore, it is not necessary to mount the tooth units 151 and the handle section 140 separately on the housing body 100, which significantly simplifies disassembly and maintenance. In addition, there are no assembly gaps between the integrated tooth units 151 and the handle section 140, which makes the formation of deposits more difficult. This reduces wear and corrosion of the tooth units 151 and the handle section 140, extends their service life, and saves time in removing deposits.

[0073] In some embodiments of the present application, with reference to Fig. 1 The lawnmower also includes a mowing assembly 200, with the handle section 140 being located at the rear of the housing body 100 relative to the mowing assembly 200.

[0074] In the embodiment of the present application, the mowing assembly 200 serves to cut and trim the grass body. The mowing assembly 200 can comprise a cutter plate, wherein the cutter plate contains rotating cutting blades. The mowing assembly 200 can also comprise a trimmer line device which cuts the grass body by the rotation of the trimmer line; furthermore, the mowing assembly 200 can also include a protective cover or similar structures.

[0075] In the embodiment of the present application, the handle section 140 is located closer to the rear edge of the housing body 100 compared to the mowing assembly 200, and in the direction of travel X, the maximum dimension of the handle section 140 relative to the rear end face of the housing body 100 is smaller than the maximum dimension of the mowing assembly 200 relative to the rear end face of the housing body 100. In other words, during the mowing process, the mowing assembly 200 first cuts the grass, and the cut grass is then scarified by the tooth structure 150 on the handle section 140.

[0076] In the technical concept of the embodiment of the present application, the handle section 140 is located on the rear side of the housing body 100 relative to the mowing assembly 200.

[0077] In other words, the tooth units 151 on the handle section 140 serve to sort the cut grass to make the lawn more uniform and aesthetically pleasing, thereby improving the beautifying effect of the lawnmower on the lawn.

[0078] In some embodiments of the present application, with reference to Fig. 5 The housing body 100 comprises a first side section 160 and a second side section 170 along a direction that runs parallel to the driving surface M and perpendicular to the direction of travel X; the number of handle sections 140 is two, wherein the two handle sections 140 are arranged on the first side section 160 and on the second side section 170 of the housing body 100 respectively.

[0079] In the embodiment of the present application, the first side section 160 and the second side section 170 are two opposite sides, wherein the first side section 160 and the second side section 170 are arranged opposite each other along the direction of travel X, with the opposite arrangement direction being perpendicular to the direction of travel X. The first side section 160 and the second side section 170 can also be understood as the left side section or right side section of the housing body 100. Accordingly, the handle section 140 can be positioned at the corners where the left and right sides of the rear side section 120 meet the first side section 160 or the second side section 170.

[0080] In the embodiment of the present application, the number of grip sections 140 can be one or more, with several comprising two or more. The grip section 140 can be arranged on the edge of the housing body 100 parallel to the direction of travel X, it can also be attached to the edge of the housing body 100 perpendicular to the direction of travel X, or it can be positioned at the corner of the housing body 100, for example, the grip section 140 can be arranged on the diagonal of the housing body 100. Several grip sections 140 can be attached at different positions on the housing body 100, either symmetrically or asymmetrically.

[0081] In the technical concept of the embodiment of the present application, the two handle sections 140 are located on the first side section 160 and second side section 170 of the housing body 100, respectively. The user can use one or both as needed, which facilitates handling; in addition, the tooth units 151 on the two handle sections 140 can each scarify the grass body that is guided through the first side section 160 and the second side section 170, thereby improving the uniformity of the scarifying.

[0082] In some embodiments of the present application, with reference to Fig. 5 the two handle sections 140 are arranged symmetrically with respect to the vertical plane from the central axis L of the main body of the housing body 100 in the direction of travel X.

[0083] In the embodiment of the present application, the symmetrical arrangement of the two handle sections 140 refers to the fact that the structure of the two handle sections 140 is mirror-symmetrical with respect to the vertical plane in which the central axis is located, and the perpendicular distances of the corresponding parts of the two handle sections 140 to the vertical plane from the central axis L are equal. For example, the longitudinal direction of one of the handle sections 140 is inclined at 45° to the direction of travel X, while the longitudinal direction of the other handle section 140 is inclined at 135° to the direction of travel X. The structure of the tooth units 151 on both handle sections 140 is also arranged symmetrically with respect to this vertical plane from the central axis.

[0084] In the technical concept of the embodiment of the present application, the symmetrically arranged two handle sections 140 promote the distribution of the center of gravity of the housing body 100; the symmetrically arranged handle sections 140 also make it easier for the user to apply force evenly and to lift the lawnmower; the handle sections 140 are arranged symmetrically, and the tooth units 151 located thereon are also symmetrical with respect to this vertical plane from the central axis L in order to ensure a balanced scarifying effect of the two tooth structures 150.

[0085] With reference to Fig. 1 and Fig. 2 provides an embodiment of the present application, a lawnmower that can run along the driving direction X on the driving surface M, wherein the lawnmower comprises a housing body 100, wherein the housing body 100 comprises a front side section 110 and a rear side section 120 along the driving direction X; wherein a through-hole 130 is provided in the housing body 100, wherein the through-hole 130 is arranged in the rear side section 120 of the housing body 100, wherein the handle section 140 is formed between the through-hole 130 and the edge of the rear side section 120 of the housing body 100;wherein the side of the handle section 140 facing the driving surface M is provided with a tooth structure 150, wherein the handle section 140 is a strip-shaped component, wherein the longitudinal direction of the handle section is inclined by a first angle α to the direction of travel X, wherein the first angle α is at least 30° and at most 60°.;

[0086] In the embodiment of the present application, the housing body 100 can comprise a housing, a chassis, a power supply device, an electronic control assembly, and the like, wherein the housing serves for mounting the mower assembly 200 of the lawnmower. The chassis is attached to the bottom of the housing and can include drive wheels, casters, etc. The power supply device and the electronic control assembly are housed in and protected by the housing. The power supply device provides energy for the mower assembly 200, the chassis, and the like; the electronic control assembly serves to control the mower assembly 200, the chassis, and other functions. In addition, the electronic control assembly can interact with the user and communicate with external terminals.

[0087] In the embodiment of the present application, the front side section of the housing body 100 is located on the front side along the direction of travel X, wherein the front side section can be equipped with structures such as obstacle detection radar and environmental monitoring cameras; wherein it is located on the rear side of the housing body 100 along the direction of travel X and can be provided with navigation assemblies, charging units and similar structures.

[0088] In the embodiment of the present application, the through-hole 130 can be a hole with a uniform diameter, a hole with a variable diameter, or a stepped hole, wherein the radial cross-section of the through-hole 130 can have a circular, elliptical, track-shaped, triangular, square, trapezoidal, or other regular or irregular shape. In some examples, the through-hole 130 is an elliptical hole with a uniform diameter, wherein the axis of extension of the through-hole 130 is arranged perpendicular to the driving surface M in order to facilitate the user's insertion of their hand through the through-hole 130 to grasp the handle section 140.

[0089] In the embodiment of the present application, the handle section 140 designates a structure that serves for gripping by the user or a mechanical gripper. The handle section 140 is formed between the through-hole 130 and the edge of the rear side section 120 of the housing body 100, and specifically refers to the inner wall on one side of the through-hole 130 as well as the surface of the housing body 100 facing away from the inner wall of that side of the through-hole 130; these surfaces all forming the surface of the handle section 140. In the example of the user grip, some of the user's fingers extend through the through-hole 130, with the fingers and palm enclosing the handle section 140. This allows force to be exerted on the handle section 140 from several directions, enabling the user to lift the lawnmower using the handle section 140.

[0090] In the embodiment of the present application, the term "strip-shaped component" refers to a component with a strip-shaped form. The strip-shaped component may have a polyhedral structure, for example, a right prism (where the edges are straight lines and the faces are planar) or a curved prism (where the edges are curves and the faces are curved surfaces). The strip-shaped component may also be a cylinder or elliptical cylinder, wherein the longitudinal direction of the strip-shaped component is parallel to the central axis of the prism or cylinder.

[0091] In the embodiment of the present application, the tooth structure 150 refers to a structure consisting of several depressions and protrusions, wherein the depressions and protrusions are arranged alternately. The protrusion can be referred to as a tooth unit 151, wherein a depression is formed between two adjacent tooth units 151, the depression serving as a channel for other objects to pass through. In some examples, the tooth structure 150 serves as a scarifying structure, wherein depressions allow grass particles to pass through, thus achieving scarification of the lawn.

[0092] In the embodiment of the present application, the user grasps the strip-shaped component to operate the lawnmower. The direction of the interaction force between the user and the lawnmower is perpendicular to the longitudinal direction of the strip-shaped component. The first angle α is set within a suitable range such that the direction of the interaction force between the user and the lawnmower passes through or near the central area of ​​the lawnmower.

[0093] In the embodiment of the present application, the following applies: The closer the first angle α, formed between the longitudinal direction of the strip-shaped component and the direction of travel X, is to 30°, the closer the handle section 140 is to the central axis of the housing body 100 along the direction of travel X. This brings the direction of the interaction forces between the user and the lawnmower closer to the rear side section 120 of the housing body 100, which helps to shift the lawnmower's counterweight to the rear and reduce drifting and slipping during movement. The closer the first angle α is to 45°, the closer the axis of the interaction forces between the user and the lawnmower is to the lawnmower's center of gravity when gripping the handle section 140, which makes it easier for the user to lift the lawnmower.The closer the first angle α is to 60°, the closer the first extension direction F1 of the tooth unit 151 is to the direction of travel X, while simultaneously maintaining the vertical to the longitudinal direction of the handle section 140. This facilitates both the user's gripping of the handle section 140 and the passage of the grass body through the spaces of the tooth unit 151.

[0094] In the embodiment of the present application, the first angle α is at least 30° and at most 60°. In some examples, the first angle α is between at least 30° and at most 50°, for example 30°, 35°, 40°, 45° or 50°; in other examples, the first angle α is at least 40° and at most 60°, for example 40°, 45°, 55° or 60°.

[0095] In the technical concept of the embodiment of the present application, the housing body 100 of the lawnmower comprises a front side section 110 and a rear side section 120, and the rear side section 120 is provided with a through-hole 130, wherein the through-hole 130, together with the edge of the rear side section 120, forms a handle section 140, the handle section 140 serving as a grip for the user. The side of the handle section 140 facing the driving surface M is provided with a toothed structure 150, wherein the toothed structure 150 comprises several tooth units 151. These tooth units 151 can be used both as scarifying teeth and as channels that facilitate gripping for the user and thus improve stability when gripping the handle section 140. Optionally, the opening direction of the through-hole 130 is parallel to the longitudinal direction of the handle section.In this case, the through-hole 130 forms a groove parallel to the driving surface, into which the user can insert part of his fingers to lift the lawnmower by gripping the handle section 140.

[0096] Since the tooth structure 150 is integrated into the handle section 140, both can be attached as a single unit to the housing body 100, thus improving structural integrity and reducing the accumulation of mud between the tooth structure 150 and the handle section 140. This reduces wear and corrosion of the tooth unit 151 and the handle section 140, increasing the service life of both and saving time on debris removal, thus improving the overall user experience of the lawn mower.

[0097] The first angle α, formed between the longitudinal direction of the strip-shaped component and the direction of travel X, is set within a suitable range to meet both the requirements for the arrangement of the handle section 140 at different positions of the housing body 100 and to make it easier for the user to lift the lawnmower over the handle section 140.

[0098] In some embodiments of the present application, with reference to Fig. 1 The tooth structure 150 comprises several tooth units 151, wherein the projection of a single tooth unit 151 onto the driving surface M is strip-shaped and has a first extension direction F1, wherein the angle between the first extension direction F1 and the longitudinal direction of the handle section 140 is at least 75° and at most 105°, wherein the angle between the first extension direction F1 and the driving direction X is not equal to 90°, wherein several tooth units 151 are arranged at intervals along the longitudinal direction of the handle section 140; wherein the projections of two adjacent tooth units 151 overlap at least partially in the plane that is perpendicular to the longitudinal direction of the handle section 140.

[0099] In the embodiment of the present application, the angle between the first extension direction F1 and the longitudinal direction of the handle section 140 is a second angle β. If the second angle β is close to 90°, the extension direction of the tooth unit 151 more closely corresponds to the direction in which the user places their fingers when gripping the handle section 140, thus making it easier for the user to grip the handle section 140. If, on the other hand, the second angle β is in the range of 75° to 105°, this favors a suitable angle between the extension direction of the tooth unit 151 and the direction of travel X, which improves the scarifying effect.

[0100] In the embodiment of the present application, the second angle β is at least 75° and at most 105°. In some examples, the second angle β is at least 75° and at most 90°; the second angle β may, for example, be 75°, 80°, 85°, or 90°. In other examples, the second angle β lies between at least 85° and at most 95°; the second angle β may be 85°, 90°, or 95°. In further examples, the second angle β lies between at least 90° and at most 105°; the second angle β may be 90°, 95°, 100°, or 105°.

[0101] In the embodiment of the present application, the angle between the first extension direction F1 and the direction of travel X is the third angle γ, wherein the third angle γ is not equal to 90°. The third angle γ can be at least 0° and less than 90°, for example 0°, 30°, 45°, 60°, 75°, etc.; the third angle γ can also be greater than 90° and at most 180°, for example 105°, 120°, 150°, 180°, etc. It is understandable that in the case of a third angle γ of 0° or 180°, the extension direction of the tooth unit 151 runs parallel to the direction of travel X.

[0102] In the embodiment of the present application, the structure of the tooth unit 151 can be a plate structure, a rod structure, or the like. The structures of several tooth units 151 can be identical or different. The multiple tooth units 151 are arranged at intervals along the longitudinal direction of the handle section 140, the distances between two adjacent tooth units 151 being the same or different. In some examples, several tooth units 151 have the same structure and are arranged at equal intervals.

[0103] In the embodiment of the present application, a projection is made in a plane perpendicular to the longitudinal direction of the handle section 140, i.e., projection along the longitudinal direction of the handle section 140, wherein the projections of two adjacent tooth units 151 overlap at least partially. It may be that one of the two tooth units 151 is smaller, while the other is larger; or one of the two tooth units 151 is located near the edge of the housing body 100, the other near the through-hole 130, but they are not completely offset; or the two tooth units 151 have the same structure and size and their projections completely overlap.

[0104] In the technical concept of the embodiment of the present application, the individual tooth unit 151 extends along the first extension direction F1, the angle between the first extension direction F1 and the longitudinal direction of the handle section 140 being within a reasonable range. The extension direction of the tooth unit 151 corresponds to the finger placement direction when the user grasps the handle section 140, which facilitates gripping and is also conducive to ensuring that the extension direction of the tooth unit 151 forms a suitable angle to the direction of travel X in order to improve the scarifying effect.

[0105] In some embodiments of the present application, with reference to Fig. 3 Two adjacent tooth units 151 along the longitudinal direction of the handle section 140 have a first distance D1, wherein the minimum distance between the orthogonal projections of two adjacent tooth units 151 perpendicular to the plane of the direction of travel X is a second distance D2, wherein the ratio of the first distance D1 to the second distance D2 is greater than 1 and less than 5.

[0106] In the embodiment of the present application, the minimum distance between the orthogonal projections of two adjacent tooth units 151, i.e., the two sides of the minimum distance, have first boundary surfaces arranged relative to each other, is defined as the minimum distance D1 along the longitudinal direction of the handle section between the first boundary surfaces of adjacent tooth units, specifically the distance between the projections along the direction of travel X, wherein the projections of the adjacent tooth units 151 do not overlap and a distance exists between the two projections. It can also be understood that the tooth unit 151 comprises a first end near the through-hole 130 and a second end near the edge of the housing body 100.The distance corresponds to the distance between the first end of one tooth unit 151 and the second end of another tooth unit 151 along the longitudinal direction of the handle section 140.

[0107] In the embodiment of the present application, the ratio of the first distance D1 to the second distance D2 is small, indicating that the direction of extension of the tooth unit 151 is closer to the direction of travel X, which facilitates the passage of the grass body through the spaces between adjacent tooth units 151 and contributes to improving the scarifying effect; a large ratio of the first distance D1 to the second distance D2 indicates that adjacent tooth units 151 have larger spaces, which facilitates finger penetration and thus improves the user experience when gripping the handle section 140.

[0108] In the embodiment of the present application, the ratio of the first distance D1 to the second distance D2 is greater than 1 and less than 5. In some examples, the ratio of the first distance D1 to the second distance D2 is greater than 1 and at most 3, for example 1.1, 1.5, 2.0, 2.5, 3; in other examples, the ratio of the first distance D1 to the second distance D2 is at least 2 and at most 4, for example 2.0, 2.5, 3.0, 3.5, 4.0; in further examples, the ratio of the first distance D1 to the second distance D2 is at least 3 and less than 5, for example 3.0, 3.5, 4.0, 4.5, 4.9.

[0109] In the technical concept of the embodiment of the present application, the ratio between the first distance D1 and the second distance D2 of adjacent tooth units 151 is set within a reasonable range in order to both facilitate the penetration of the grass body through the spaces between the adjacent tooth units 151 and thus improve the scarifying effect, and to leave sufficient space for fingers to be inserted, thereby improving the user experience when gripping the handle section 140.

[0110] In some embodiments of the present application, with reference to Fig. 4 The side of the handle section 140 facing the through hole 130 is designed as the first handle surface 141; wherein a scarifying channel 152 is formed between adjacent tooth units 151, wherein the direction of passage of the scarifying channel 152 is perpendicular to the longitudinal direction of the handle section 140, wherein the side of the handle section 140 facing the driving surface M is designed as the second handle surface 142, wherein the second handle surface 142 is connected to the first handle surface 141.

[0111] In the embodiment of the present application, the handle section 140 is oriented towards the side of the through-hole 130, that is, the through-hole 130 is located near the inner wall surface of the handle section 140. In other words, the user's hand passes through the through-hole 130 to grasp the handle section 140, and the first gripping surface 141 can be a flat surface, a curved surface, or the like. In some examples, the first gripping surface 141 is a flat surface, and the transition between the first gripping surface 141 and the adjacent gripping surface is provided by a curved surface to facilitate gripping for the user.

[0112] In the embodiment of the present application, the grip section 140 forms a second gripping surface 142 on the side facing the driving surface M. In other words, the tooth unit 151 is arranged on the second gripping surface 142, and a grippable surface is located between two adjacent tooth units 151. The second gripping surface 142 can be either a flat or a curved surface.

[0113] In the embodiment of the present application, the first gripping surface 141 and the second gripping surface 142 can be designed either as smooth surfaces or as patterned surfaces to increase friction and provide the user with improved grip.

[0114] In the embodiment of the present application, a scarifying channel 152 is formed between two adjacent tooth units 151. During the mowing process, the scarifying channel 152 allows the grass to pass through, enabling the tooth units 151 to scarify. The inner wall of the scarifying channel 152 also forms part of the second gripping surface 142. When the lawnmower needs to be moved, the user's fingers can be guided through the scarifying channel 152, with the tooth units 151 providing support to the fingers to improve grip.

[0115] In the technical concept of the embodiment of the present application, the side of the handle section 140 corresponding to the through-hole 130 is designed as the first gripping surface 141, wherein the first gripping surface 141 is relatively flat, which makes it easier for the user to grip; wherein the adjacent tooth units 151 form a scarifying channel 152, which facilitates the passage of the grass body, wherein the direction of passage of the scarifying channel 152 is perpendicular to the longitudinal direction of the handle section 140, which enables the user to extend their fingers into the scarifying channel 152 when gripping the handle section 140;wherein the surface of the handle section 140 corresponding to the scarifying channel 152 is designed as a second handle surface 142, wherein the second handle surface 142 is connected to the first handle surface 141 to make it easier for the user to grip the handle section 140 and to improve the fit between the palm and fingers with the handle section 140, thereby increasing the gripping effect.

[0116] In some embodiments of the present application, with reference to Fig. 1, Fig. 3 and Fig. 4 the tooth unit 151 is integratively shaped with the handle section 140.

[0117] In the embodiment of the present application, the term "integrally formed" means that the individual parts of the component are formed into a complete structure in a single machining step, without the need for additional assembly, and the integrally formed parts may be made of the same or different materials. Integral forming can be carried out by injection molding, pressing, casting, thermoforming or other processes, and this is not limited in the embodiment of the present application.

[0118] In the technical concept of the embodiment of the present application, the integrated design of the tooth units 151 and the handle section 140 ensures improved structural integrity, which contributes to increased structural strength. The centers of gravity of the tooth units and the handle section are thus positioned more effectively. Furthermore, it is not necessary to mount the tooth units 151 and the handle section 140 separately on the housing body 100, which significantly simplifies disassembly and maintenance. In addition, there are no assembly gaps between the integrated tooth units 151 and the handle section 140, which makes the formation of deposits more difficult. This reduces wear and corrosion of the tooth units 151 and the handle section 140, extends their service life, and saves time in removing deposits.

[0119] In some embodiments of the present application, with reference to Fig. 1 and Fig. 5 the lawnmower also includes a mowing assembly 200, with the handle section 140 being located at the rear of the housing body 100 relative to the mowing assembly 200.

[0120] In the embodiment of the present application, the mowing assembly 200 serves to cut and trim the grass body. The mowing assembly 200 can comprise a cutter plate, wherein the cutter plate contains rotating cutting blades. The mowing assembly 200 can also comprise a trimmer line device which cuts the grass body by the rotation of the trimmer line; furthermore, the mowing assembly 200 can also include a protective cover or similar structures.

[0121] In the embodiment of the present application, the handle section 140 is located closer to the rear edge of the housing body 100 compared to the mowing assembly 200, and in the direction of travel X, the maximum dimension of the handle section 140 relative to the rear end face of the housing body 100 is smaller than the maximum dimension of the mowing assembly 200 relative to the rear end face of the housing body 100. In other words, during the mowing process, the mowing assembly 200 first cuts the grass, and the cut grass is then scarified by the tooth structure 150 on the handle section 140.

[0122] In the technical concept of the embodiment of the present application, the handle section 140 is located on the rear side of the housing body 100 relative to the mowing assembly 200. In other words, the tooth units 151 on the handle section 140 serve to sort the cut grass in order to make the lawn more uniform and aesthetically pleasing, thereby improving the beautifying effect of the lawnmower on the lawn.

[0123] In some embodiments of the present application, with reference to Fig. 5 The housing body 100 comprises a first side section 160 and a second side section 170 along a direction that runs parallel to the driving surface M and perpendicular to the direction of travel X; the number of handle sections 140 is two, wherein the two handle sections 140 are arranged on the first side section 160 and on the second side section 170 of the housing body 100 respectively.

[0124] In the embodiment of the present application, the number of grip sections 140 can be one or more, with several comprising two. The grip section 140 can be arranged on the edge of the housing body 100 parallel to the direction of travel X, it can also be attached to the edge of the housing body 100 perpendicular to the direction of travel X, or it can be positioned at the corner of the housing body 100, for example, the grip section 140 can be arranged on the diagonal of the housing body 100. Several grip sections 140 can be attached at different positions on the housing body 100, either symmetrically or asymmetrically.

[0125] In the technical concept of the embodiment of the present application, the two handle sections 140 are located on the first side section 160 and second side section 170 of the housing body 100, respectively. The user can use one or both as needed, which facilitates handling; in addition, the tooth units 151 on the two handle sections 140 can each scarify the grass body that is guided through the first side section 160 and the second side section 170, thereby improving the uniformity of the scarifying.

[0126] In some embodiments of the present application, with reference to Fig. 5 the two handle sections 140 are arranged symmetrically with respect to the central axis L of the housing body 100 in the direction of travel X.

[0127] In the embodiment of the present application, the symmetrical arrangement of the two handle sections 140 refers to the fact that the structure of the two handle sections 140 is mirror-symmetrical with respect to the vertical plane in which the central axis is located, and the perpendicular distances of the corresponding parts of the two handle sections 140 to the vertical plane from the central axis L are equal. For example, the longitudinal direction of one of the handle sections 140 is inclined at 45° to the direction of travel X, while the longitudinal direction of the other handle section 140 is inclined at 135° to the direction of travel X. The structure of the tooth units 151 on both handle sections 140 is also arranged symmetrically with respect to this vertical plane from the central axis.

[0128] In the technical concept of the embodiment of the present application, the symmetrically arranged two handle sections 140 promote the distribution of the center of gravity of the housing body 100; the symmetrically arranged handle sections 140 also make it easier for the user to apply force evenly and to lift the lawnmower; the handle sections 140 are arranged symmetrically, and the tooth units 151 located thereon are also symmetrical with respect to this vertical plane from the central axis L in order to ensure a balanced scarifying effect of the two tooth structures 150.

[0129] In one possible embodiment of the present application, the lawnmower can move on the driving surface M in the direction of travel X to perform mowing operations. The lawnmower comprises a housing 100, the housing 100 comprising a front side section and a rear end section, wherein a through-hole 130 is provided in the rear side section 120, the through-hole 130 being located at the corner of the housing body 100, that is, the through-hole 130 is arranged laterally at the rear of the housing body 100. The through-hole 130, together with the edge of the rear side section 120, forms a handle section 140, the handle section 140 serving the user for gripping in order to lift the lawnmower. The handle section 140 is a rod-shaped component, the longitudinal direction of the handle section 140 forming an angle of 45° to the direction of travel X.In other words, when the user lifts the lawnmower over the handle section 140, the axis of the interaction force between the user and the handle section 140 is at an angle to the direction of travel X.

[0130] The handle section 140 on the side facing the driving surface M is provided with a tooth structure 150, wherein the tooth structure 150 is integrally formed with the handle section 140, and wherein the tooth structure 150 comprises several tooth units 151, the extension direction of several tooth units 151 forming an angle of 90° to the longitudinal direction of the handle section 140. In a plane perpendicular to the longitudinal direction of the handle section 140, the projections of two adjacent tooth units 151 overlap. A scarifying channel 152 is formed between two adjacent tooth units 151, wherein the scarifying channel 152 allows the passage of the grass body to organize and beautify the lawn, and the scarifying channel 152 allows the passage of the user's fingers so that the user can securely grip the handle section 140.The 151 tooth units also provide support for the user's fingers, thereby increasing grip security.

[0131] The aforementioned embodiment numbers serve solely for descriptive purposes and do not constitute an evaluation of the advantages or disadvantages of the embodiments. The foregoing is only a preferred embodiment of the present application and does not limit the scope of the patent in the present application. Any equivalent structure or equivalent process transformation carried out using the description of the present application and the contents of the drawings, or applied directly or indirectly to other related technical fields, is likewise covered by the scope of patent protection in the present application. Reference symbol list 100 housing bodies 110 Front side section 120 rear side section 130 through hole 140 handle section 141 first gripping surface 142 second grip surface 150 tooth structure 151 tooth unit 152 Scarifying channel 160 first page section 170 second page section 200 mower assembly D1 first distance D2 second distance A first angle B second angle Γ third angle L central axis M Driving surface X direction of travel F1 first extension direction F2 Longitudinal direction of the handle section

Claims

[1] Lawn mower, in particular robotic lawn mower, designed to move along a driving direction on a driving surface or a surface, comprising a housing body, a mowing assembly and a handle section, wherein the mowing assembly is attached to the housing body; characterized bythat the housing body comprises a housing, wherein the handle section is formed on a side surface of the housing and is designed as a strip-shaped component, wherein the handle section is provided with a tooth structure on a side facing the driving surface or the ground, wherein the tooth structure comprises several tooth units, wherein the projection of a single tooth unit onto the driving surface or the ground is strip-shaped and has a first extension direction, wherein an angle between the first extension direction and the direction of travel is not equal to 90°, wherein a straight line extending parallel to the first extension direction and intersecting a center point of the handle section passes through the mowing assembly; wherein a plurality of tooth units are arranged along a longitudinal direction of the handle section at intervals orare arranged at intervals from each other, wherein two adjacent tooth units are arranged along the longitudinal direction of the handle section at a first distance D1, wherein a minimum gap between the orthogonal projections of two adjacent tooth units in a plane perpendicular to the direction of travel defines a second distance D2, wherein the ratio of the first distance D1 to the second distance D2 is greater than 1 and less than 5. [2] Lawn mower according to claim 1, wherein the first extension direction includes an angle of at least 75° and at most 105° with the longitudinal direction of the handle section, wherein the longitudinal direction of the handle section includes a first angle with the direction of travel which is greater than 0°. [3] Lawn mower according to claim 2, wherein the projections of two adjacent tooth units overlap at least partially in a plane perpendicular to the longitudinal direction of the handle section. [4] Lawn mower according to claim 2, wherein the first angle is at least 30° and at most 60°. [5] Lawn mower according to claim 3, wherein a minimum gap is formed between two adjacent tooth units, wherein the two sides of the minimum gap each have an opposite first boundary surface; wherein the first distance D1 corresponds to the minimum gap between the first boundary surfaces of adjacent tooth units along the longitudinal direction of the handle section; wherein the second distance D2 is greater than 0. [6] Lawn mower according to claim 1, characterized by , that the tooth unit is integrally shaped with the handle section; that a scarifying channel is formed between the adjacent tooth units, wherein the direction of passage of the scarifying channel runs perpendicular to the longitudinal direction of the handle section. [7] Lawn mower according to any of the preceding claims, wherein the handle section is located at the rear or front of the housing body relative to the mowing assembly. [8] Lawn mower according to one of the preceding claims, wherein the housing body comprises a first side section and a second side section along a direction parallel to the driving surface or the ground and perpendicular to the direction of travel; and the number of handle sections is two, each arranged on the first side section and on the second side section. [9] Lawn mower according to claim 8, wherein the two handle sections are arranged symmetrically with respect to a vertical plane from the central axis of the housing body in the direction of travel. [10] Lawn mower according to one of the preceding claims, wherein the second angle β between the first extension direction and the longitudinal direction of the handle section satisfies the condition: 75° ≤ β ≤ 105°. [11] Lawn mower according to one of the preceding claims, wherein the ratio between the first distance D1 and the second distance D2 is the condition: 2 ≤ D1 / D2 ≤ 4 is satisfied. [12] Lawn mower, in particular robotic lawn mower, designed to move along a direction of travel on a driving surface or a surface, comprising a housing body, a mowing assembly and a handle section; characterized bythat the housing body comprises a housing, wherein the handle section is formed on a side surface of the housing, wherein the housing has a limiting section on one side of the handle section, wherein the handle section is formed as a strip-shaped component, wherein the handle section is provided with a tooth structure on one side facing the driving surface or the substrate, wherein the tooth structure comprises several tooth units; wherein several tooth units are arranged along a longitudinal direction of the handle section at intervals orare arranged at intervals from each other, wherein two adjacent tooth units are arranged along the longitudinal direction of the handle section at a first distance D1 from each other, wherein a minimum gap between the orthogonal projections of two adjacent tooth units in a plane perpendicular to the direction of travel corresponds to a second distance D2, wherein the ratio of the first distance D1 to the second distance D2 is greater than 1 and less than 5. [13] Lawn mower according to claim 12, wherein the mowing assembly is designed to specify at least one lowest first cutting height and a second cutting height which is higher than the first cutting height, wherein the lowest point of the tooth assembly is below the first cutting height; wherein the limiting section is designed as a through hole or groove; wherein the handle section is formed between the limiting section and an edge of the side section of the housing body, wherein a side of the handle section facing the limiting section is designed as a first handle surface; wherein the side of the handle section facing the driving surface or the ground is designed as a second handle surface, wherein the second handle surface is connected to the first handle surface, wherein the limiting section forms an auxiliary handle surface, the auxiliary handle surface extending along the longitudinal direction of the handle section. [14] Lawn mower according to claim 12 or 13, wherein the projection of the individual tooth unit onto the driving surface or the ground is strip-shaped and defines a first extension direction, wherein an angle between the first extension direction and the longitudinal direction of the handle section is at least 75° and at most 105°, wherein the angle between the first extension direction and the direction of travel is not equal to 90°; wherein a second angle β between the first extension direction and the longitudinal direction of the handle section satisfies the condition: 75° ≤ β ≤ 105°. [15] Lawn mower according to one of claims 12 to 14, wherein the ratio between the first distance D1 and the second distance D2 is subject to the condition: 2 ≤ D1 / D2 ≤ 4 is satisfied. [16] Lawn mower according to any one of claims 12 to 15, wherein a first angle is formed between the longitudinal direction of the handle section and the direction of travel, wherein the first angle is greater than 0°, wherein the projections of two adjacent tooth units in a plane perpendicular to the longitudinal direction of the handle section overlap at least partially, wherein a minimum gap is formed between two adjacent tooth units, wherein the two sides of the minimum gap each have an opposite first boundary surface; wherein a first distance D1 is the minimum gap between the first boundary surfaces of adjacent tooth units along the longitudinal direction of the handle section; wherein the second distance D2 is greater than 0.

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