Lawn operation device
By adding vertical and inclined sections and protrusions to the grass comb teeth of the lawnmower, the safety hazard of the lawnmower climbing along the user's feet is solved, thereby improving safety and operational efficiency.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHENZHEN MAMMOTION INNOVATION CO LTD
- Filing Date
- 2025-12-26
- Publication Date
- 2026-07-23
AI Technical Summary
Lawn-mowing robots may climb along the user's feet while operating automatically, posing a potential safety hazard, especially when the user is kneeling on the lawn, potentially causing injury to the legs or other exposed areas.
Grass combs are installed at the front of the grass cutting equipment. The grass combs have vertical and inclined sections to make contact with climbable objects and create resistance, preventing the cutting components from contacting the climbable objects. This includes setting protrusions to enhance resistance.
This effectively prevents the lawnmower robot from climbing along the user's feet, improving equipment safety, preventing cutting injuries, ensuring user safety, and maintaining the normal operation of the equipment.
Smart Images
Figure CN2025146122_23072026_PF_FP_ABST
Abstract
Description
Lawn working equipment
[0001] The present application claims priority to the Chinese patent application No. 202520125761.3, filed on January 17, 2025, and entitled "Lawn working equipment", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD
[0002] The present application relates to the field of robots, in particular to a lawn working equipment. BACKGROUND
[0003] With the development of intelligent devices, automated lawn working equipment such as lawn mowing robots have been widely used in lawn maintenance. Such equipment can autonomously navigate, avoid obstacles and complete mowing tasks, improving the efficiency of lawn management. However, in actual application, there may be certain safety hazards when the lawn mowing robot is running. For example, when a user kneels on the lawn, the lower leg and foot may form a certain angle with the ground. In this case, the lawn mowing robot may climb up along the user's foot during automatic operation and cause harm to the human body. Therefore, there is an urgent need for a lawn mowing robot design scheme that can effectively avoid the above safety hazards. SUMMARY
[0004] The purpose of the present application is to provide a lawn working equipment, by setting vertical segments and inclined segments at a certain angle on the grass comb teeth at the front end of the body of the lawn working equipment, so that the lawn working equipment cannot climb up along the user's foot during automatic walking, thereby effectively avoiding potential safety hazards and ensuring the safety of the user.
[0005] To achieve the purpose of the present application, the present application provides the following technical solutions:
[0006] In a first aspect, the embodiments of the present application provide a lawn working equipment, comprising a body; a walking assembly arranged on the body and used to drive the lawn working equipment to move; a cutting assembly arranged at the bottom of the body and used to trim the grass on the lawn to be worked; a grass comb assembly arranged on the body and located in front of the lawn working equipment, the grass comb assembly comprising a plurality of grass comb teeth, the plurality of grass comb teeth being arranged at intervals along a direction perpendicular to the moving direction of the lawn working equipment, each grass comb tooth comprising a vertical portion and an inclined portion on a side away from the cutting assembly, the vertical portion being located at one end close to the lawn to be worked, and used to contact an object in front of the lawn working equipment.
[0007] This embodiment of the application provides continuous vertical and inclined sections on the grass comb teeth at the front end of the grass working equipment. When there are climbable objects in the path of the grass working equipment, the grass comb assembly can contact the climbable objects first compared to the cutting assembly. The vertical and inclined sections can then contact the climbable objects in sequence to form abutments, generating resistance to the grass working equipment and stopping its continued movement. This avoids the cutting assembly from contacting climbable objects, such as the user's legs, eliminating potential safety hazards and ultimately improving the safety of the grass working equipment.
[0008] In one possible implementation, the inclined section includes a first inclined segment and a second inclined segment, which are sequentially connected to a vertical section. The second inclined segment tilts away from the end connected to the vertical section, moving away from the cutting component. This allows the first inclined segment, the second inclined segment, and the vertical section to simultaneously or sequentially contact the climbable object, generating multiple levels of resistance to the grass-cutting equipment. This helps to stop the equipment from continuing to climb, prevents the cutting component from contacting the climbable object, eliminates potential safety hazards, and ultimately improves the safety of the grass-cutting equipment.
[0009] In one possible implementation, the angle between the second inclined section and the forward direction of the grass-working equipment is 35-60°. When the angle between the second inclined section and the forward direction of the grass-working equipment is less than 35°, the inclination angle of the second inclined section 5122 will be less than the angle value corresponding to the foot model specified in the safety regulations, increasing the risk of contact with the cutter head. When the angle between the second inclined section and the forward direction of the grass-working equipment is greater than 60°, it is not conducive to generating multiple resistances when the grass-working equipment contacts a climbable object, and there is a risk that the grass-working equipment cannot be stopped from continuing to climb.
[0010] In one possible implementation, multiple protrusions are provided on opposite sides of the grass comb assembly. These protrusions extend perpendicularly to the chassis and also along the travel direction of the grass-cutting equipment. By making the protrusions perpendicular to the chassis, when the side of the grass-cutting equipment comes into contact with a climbable object, such as a user's foot, the protrusions can generate contact resistance. By making the protrusions extend along the travel direction of the grass-cutting equipment, the structural strength of the protrusions can be enhanced, generating greater contact resistance. The combination of these two aspects prevents the grass-cutting equipment from contacting the user's feet through the sides of the machine and allowing the user to climb up along their feet, eliminating potential safety hazards and ultimately improving the safety of the grass-cutting equipment.
[0011] In one possible implementation, the end of the protrusion furthest from the chassis is flush with the end of the vertical part furthest from the inclined part. This allows the protrusion and the vertical part to simultaneously contact the climbable object, such as the user's foot, when the front center and front side of the grass-working equipment simultaneously come into contact with the climbable object. This creates contact resistance, preventing the grass-working equipment from climbing up the user's feet through contact with the machine body, eliminating potential safety hazards, and ultimately improving the safety of the grass-working equipment.
[0012] In one possible implementation, the distance between any two adjacent protrusions is 20-30mm. When the distance between any two adjacent protrusions is greater than 30mm, when the front side of the grass-cutting equipment contacts a climbable object, the climbable object may pass through the gap between any two adjacent protrusions and contact the machine body first, instead of contacting the protrusion first. This causes the grass-cutting equipment to climb up the climbable object, increasing the risk of contact with the cutter head. When the distance between any two adjacent protrusions is less than 20mm, the distribution of multiple protrusions becomes too compact. When the grass-cutting equipment encounters dense grass, it will generate greater resistance, which is detrimental to the normal operation of the grass-cutting equipment.
[0013] In one possible implementation, the vertical part is 45-60mm above the ground. If the vertical part is higher than 60mm, when the lawn mowing equipment comes into contact with a climbable object, the vertical part may be too high to reach it, allowing the climbable object to extend over the vertical part and into the bottom of the lawn mowing equipment, contacting the cutting components and causing safety issues with the cutter head. If the vertical part is lower than 45mm above the ground, when the lawn mowing equipment is performing mowing work, the vertical part, being too close to the grass to be mowed, is prone to contacting obstacles on the grass, generating significant resistance and causing the lawn mowing equipment to stagnate, reducing its efficiency.
[0014] In one possible implementation, the distance between any two adjacent grass comb teeth is 10-20mm. When the distance between any two adjacent grass comb teeth is greater than 20mm, when the front side of the grass-cutting equipment comes into contact with a climbable object, the climbable object may pass through the gap between any two adjacent grass comb teeth and make contact with the machine body first, instead of contacting the vertical part first. This causes the grass-cutting equipment to climb up along the climbable object, increasing the risk of contact with the cutter head. When the distance between any two adjacent grass comb teeth is less than 10mm, the distribution of multiple grass comb teeth is too dense. When the grass-cutting equipment encounters dense grass, it will generate greater resistance, which is not conducive to the normal operation of the grass-cutting equipment.
[0015] In one possible implementation, each grass comb tooth has a blocking part on the side near the cutting component, the blocking part being lower than the vertical part being lower than the vertical part being higher than the vertical part. When the grass working equipment comes into contact with a climbable object, if the contact resistance provided by the vertical and inclined parts is insufficient to prevent the grass working equipment from continuing to climb, the blocking part can further form a new contact resistance with the climbable object, which helps to prevent the grass working equipment from continuing to climb, eliminates potential safety hazards, and ultimately improves the safety of the grass working equipment.
[0016] In one possible implementation, the chassis of the machine includes a handle integrated with the grass comb assembly, with a groove on the side of the handle facing away from the grass comb assembly. In extreme cases, if the grass-cutting equipment is climbing up a climbable object, posing a risk of the cutting assembly cutting the climbable object, the handle can be quickly inserted into the groove to lift the grass-cutting equipment, thus averting a cutting hazard. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 is a schematic diagram of the structure of a grassland operation equipment according to an embodiment;
[0019] Figure 2 is a structural schematic diagram of the grassland operation equipment in Figure 1 from another perspective;
[0020] Figure 3 is a structural schematic diagram of the grassland operation equipment in Figure 1 from another perspective;
[0021] Figure 4 is a partial enlarged structural diagram of point A in Figure 3;
[0022] Figure 5 is a magnified view of the structure at point B in Figure 3;
[0023] Figure 6 is a schematic diagram of the chassis structure of one embodiment;
[0024] Figure 7 is a schematic diagram of a half-section structure of the chassis shown in Figure 6.
[0025] Explanation of reference numerals in the attached drawings: 1-Grassland operation equipment; 2-Body; 21-Chassis; 211-Handle; 212-Groove; 3-Walking assembly; 4-Cutting assembly; 5-Grass comb assembly; 51-Grass comb teeth; 511-Vertical part; 5111-Fourth end; 512-Inclined part; 5121-First inclined section; 5122-Second inclined section; 51221-First end; 51222-Second end; 513-Blocking part; 5131-Fifth end; 6-Protrusion; 61-Third end. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0027] It should be noted that when a component is said to be "fixed" to another component, it can be directly on the other component or it can be in a middle component. When a component is said to be "connected" to another component, it can be directly connected to the other component or it may be in a middle component.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0029] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0030] With the development of smart devices, automated lawn mowing equipment, such as robotic lawnmowers, has been widely used in lawn maintenance. These devices can autonomously navigate, avoid obstacles, and complete mowing tasks, improving the efficiency of lawn management. However, in practical applications, robotic lawnmowers may pose certain safety hazards during operation. For example, when a user kneels on the lawn, their lower legs and feet may form an angle with the ground. In this situation, the robotic lawnmower, during automatic operation, may climb up along the user's feet. If the mower's blades do not stop in time, it may cause cuts or other serious injuries to the user's legs or other exposed areas. This potential risk not only threatens user safety but may also affect the user experience and market acceptance of the robotic lawnmower. Therefore, there is an urgent need for a design scheme for a robotic lawnmower that can effectively avoid the aforementioned safety hazards.
[0031] Figure 1 is a structural schematic diagram of the grass operation equipment 1 proposed in this application embodiment, and Figure 2 is a structural schematic diagram of the grass operation equipment 1 from another perspective in Figure 1. Referring to Figures 1 and 2, the grass operation equipment 1 includes a body 2, a walking component 3, a cutting component 4, and a grass combing component 5. The body 2 may include a chassis 21 and an upper shell 22. The upper shell is disposed on the chassis 21 and can be used to support functional components such as equipment control buttons and vision components. The vision component can be used to detect whether there are obstacles in the current working path during the operation of the grass operation equipment 1. If there are obstacles, the vision component acquires the characteristic information of the obstacles, generates an obstacle avoidance path based on the characteristic information, and controls the grass operation equipment 1 to operate according to the obstacle avoidance path, thereby improving the working efficiency of the grass operation equipment 11. The walking component 3 may include two sets of drive wheels, which are detachably connected to opposite sides of the chassis 21 to drive the grass operation equipment 1 to move on the lawn surface and perform range operations. The cutting component 4 can be set at the bottom of the machine body 2, that is, on the side of the chassis 21 away from the upper shell 22. The cutting component 4 can be used to cut the grass on the grass to be treated for weeding.
[0032] The grass comb assembly 5 can be mounted on the machine body 2. Schematic, along the forward direction of the lawn mowing equipment 1, the cutting component 4 and the grass comb assembly 5 can be sequentially mounted on the chassis 21. That is, during the operation of the lawn mowing equipment 1, the grass comb assembly 5 contacts the lawn before the cutting component 4, thus combing and straightening the grass blades, making them upright, ensuring that the blades of the cutting component 4 can trim the lawn more evenly, ultimately improving the mowing effect. It should be noted that in the above embodiment, the grass comb assembly 5 can be considered as a front grass comb located at the front of the lawn mowing equipment 1. In another possible implementation, the grass comb assembly 5 can also be located at the rear of the lawn mowing equipment 1, i.e., a rear grass comb. When the lawn mowing equipment 1 moves backward, the rear grass comb contacts the lawn before the cutting component 4, thus combing and straightening the grass blades, making them upright, ensuring that the blades of the cutting component 4 can trim the lawn more evenly.
[0033] Figure 3 is a structural schematic diagram of the grass-cutting equipment in Figure 1 from another perspective, and Figure 4 is a partially enlarged structural schematic diagram of point A in Figure 3. Combining Figures 3 and 4, the grass comb assembly 5 may include several grass comb teeth 51 extending perpendicularly to the chassis 21. These grass comb teeth 51 are spaced apart along the direction perpendicular to the travel direction of the grass-cutting equipment 1. Schematic, multiple grass comb teeth 51 may be arranged sequentially at intervals along the direction between the two sets of drive wheels. Each grass comb tooth 51 includes a vertical portion 511 and an inclined portion 512 on the side facing away from the cutting assembly 4. The vertical portion 511 is located closer to the grass to be cut, meaning it is farther from the chassis 21 than the inclined portion 512, to facilitate contact with objects located in front of the grass-cutting equipment 1. When there are climbable objects in the path of the grass working equipment 1, the grass comb component 5 can contact the climbable object first compared to the cutting component 4. The vertical part 511 and the inclined part 512 can contact the climbable object in turn to form abutment, which will generate resistance to the grass working equipment 1 and stop the grass working equipment 1 from moving forward. That is, it avoids the cutting component 4 from contacting the climbable object, such as the user's legs and feet, eliminates potential safety hazards, and ultimately improves the safety of the grass working equipment 1.
[0034] Referring to Figures 3 and 4, in one possible implementation, the vertical part 511 is 45-60mm above the ground, meaning the distance between the fourth end 5111 of the vertical part 511 and the grass to be cultivated can be 45-60mm. For example, the height of the vertical part 511 above the ground can be 45mm, 46mm, 47mm, 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm, 55mm, 56mm, 57mm, 58mm, 59mm, or 60mm. Understandably, the height of the vertical part 511 above the ground can also be any value other than those mentioned above, as long as the height of the vertical part 511 above the ground is 45-60mm. If the vertical part 511 is more than 60mm above the ground, when the lawn mowing equipment 1 comes into contact with a climbable object, the vertical part 511 may be too high to reach the climbable object, causing the climbable object to pass over the vertical part 511 and extend into the bottom of the lawn mowing equipment 1 and come into contact with the cutting components, causing safety issues when the cutter head cuts the climbable object. If the vertical part 511 is less than 45mm above the ground, when the lawn mowing equipment 1 is performing lawn mowing work, the vertical part 511, which is too close to the lawn to be mowed, is prone to contact with obstacles on the lawn, generating greater resistance, causing the lawn mowing equipment 1 to stop moving and reducing its working efficiency.
[0035] Referring to Figures 3 and 4, in one possible embodiment, the inclined portion 512 includes a first inclined segment 5121 and a second inclined segment 5122. Along a direction perpendicular to the chassis 21, the first inclined segment 5121, the second inclined segment 5122, and the vertical portion 511 are connected sequentially. The second inclined segment 5122 includes a first end 51221 and a second end 51222. The first end 51221 is located at the intersection of the second inclined segment 5122 and the first inclined segment 5121, and the second end 51222 is located at the intersection of the second inclined segment 5122 and the vertical portion 511. The second inclined segment 5122 is inclined away from the end connected to the vertical portion 511 in a direction away from the cutting assembly 4. That is, the second inclined segment 5122 is deflected at a certain angle relative to the vertical portion 511 in the forward direction of the grass-cutting equipment 1, with the second end 51222 as its center. The direction between the first end 51221 and the second end 51222 forms a certain angle with the extending direction of the vertical portion 511. This allows the first inclined section 5121, the second inclined section 5122, and the vertical section 511 to simultaneously or sequentially come into contact with the climbable object, thereby generating multiple resistances on the grass operation equipment 1. This helps to stop the grass operation equipment 1 from continuing to climb, avoids contact between the cutting component 4 and the climbable object, eliminates potential safety hazards, and ultimately improves the safety of the grass operation equipment 1.
[0036] Referring to Figures 3 and 4, in one possible implementation, the angle between the second inclined section 5122 and the forward direction of the grass-working equipment 1 is 35-60°. That is, when the grass-working equipment 1 travels on flat ground, the angle between the second inclined section 5122 and the horizontal plane is 35-60°; when the grass-working equipment 1 travels on a slope, the angle between the second inclined section 5122 and the slope is 35-60°. If the vertical part 511 is perpendicular to the forward direction of the grass-working equipment 1, the angle between the second inclined section 5122 and the vertical part 511 is 125-150°. For example, the angle between the second inclined section 5122 and the vertical part 511 can be 125°, 130°, 135°, 140°, 145°, or 150°. Understandably, the angle between the second inclined section 5122 and the vertical section 511 can be any value other than those mentioned above, as long as the angle between the second inclined section 5122 and the vertical section 511 is 125-150°, that is, the angle between the second inclined section 5122 and the forward direction of the grass working equipment 1 is 35-60°. When the angle between the second inclined section 5122 and the forward direction of the grass working equipment 1 is less than 35°, the inclination angle of the second inclined section 5122 will be less than the angle value corresponding to the foot model specified in the safety regulations. At this time, the second inclined section 5122 is excessively inclined relative to the direction perpendicular to the chassis 21. When the grass working equipment 1 approaches a climbable object, the second inclined section 5122, which is excessively inclined relative to the direction perpendicular to the chassis 21, will contact the climbable object before the vertical section 511. This causes the machine to continue climbing along the second inclined section 5122 before the vertical section 511 generates effective resistance, increasing the risk of contact with the cutter head. When the angle between the second inclined section 5122 and the forward direction of the grass operation equipment 1 is greater than 60°, the inclination of the second inclined section 5122 is smaller than that in the direction perpendicular to the chassis 21. This is not conducive to generating multiple resistances when the grass operation equipment 1 comes into contact with the climbable object, and there is a risk that the grass operation equipment 1 cannot be stopped from continuing to climb.
[0037] Referring to Figures 3 and 4, in one possible implementation, the distance between any two adjacent grass comb teeth 51 is 10-20 mm. For example, the distance between any two adjacent grass comb teeth 51 can be 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, or 20 mm. Understandably, the distance between any two adjacent grass comb teeth 51 can also be any value other than those mentioned above, as long as the distance between any two adjacent grass comb teeth 51 is 10-20 mm. When the distance between any two adjacent grass comb teeth 51 is greater than 20 mm, when the front side of the grass-growing equipment 1 contacts a climbable object, the climbable object may pass through the gap between any two adjacent grass comb teeth 51 and contact the machine body first, instead of contacting the vertical part 511 first. This causes the grass-growing equipment 1 to climb upwards along the climbable object, increasing the risk of contact with the cutter head. When the distance between any two adjacent grass comb teeth 51 is less than 10mm, the distribution of multiple grass comb teeth 51 is too dense. When the grass operation equipment 1 encounters dense grass, it will generate greater resistance, which is not conducive to the normal operation of the grass operation equipment 1.
[0038] Figure 5 is a partially enlarged structural diagram of point B in Figure 3. Combining Figures 3 and 5, in one possible implementation, multiple protrusions 6 are provided on opposite sides of the grass comb assembly 5. Schematic, the grass comb assembly 5 can be located in the central area of the front end of the chassis 21, and the multiple protrusions 6 can be evenly distributed on the left and right sides of the front end of the chassis 21. The protrusions 6 protrude in a direction perpendicular to the chassis 21, that is, perpendicular to the forward direction of the grass-working equipment 1, i.e., along the extension direction of the vertical portion 511. This allows the protrusions 6 to contact a climbable object, such as a user's foot, when the side of the grass-working equipment 1 comes into contact with it, generating contact resistance. The protrusions 6 protrude along the forward direction of the grass-working equipment 1, which enhances the structural strength of the protrusions 6, allowing them to generate greater contact resistance when in contact with a climbable object. The protrusions 6 in two directions prevent the grass work equipment 1 from contacting the user's feet through the sides of the machine body and climbing up along the feet, thus eliminating potential safety hazards and ultimately improving the safety of the grass work equipment 1.
[0039] Referring to Figures 3, 4, and 5, in one possible implementation, the end of the protrusion 6 away from the chassis 21 is flush with the end of the vertical part 511 away from the inclined part 512. That is, the third end 61 of the protrusion 6 is flush with the fourth end 5111 of the vertical part 511, meaning the third end 61 and the fourth end 5111 are at the same height from the ground. This allows the protrusion 6 and the vertical part 511 to simultaneously contact the climbable object, such as the user's foot, when the front center and front side of the grass-working equipment 1 simultaneously come into contact with the climbable object. This generates contact resistance, preventing the grass-working equipment 1 from climbing up the user's feet through contact with the body 2, thus eliminating potential safety hazards and ultimately improving the safety of the grass-working equipment 1.
[0040] Referring to Figures 3 and 5, in one possible implementation, the distance between any two adjacent protrusions 6 is 20-30 mm. For example, the distance between any two adjacent protrusions 6 can be 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, or 30 mm. Understandably, the distance between any two adjacent protrusions 6 can also be any value other than those mentioned above, as long as the distance between any two adjacent protrusions 6 is 20-30 mm. When the distance between any two adjacent protrusions 6 is greater than 30 mm, when the front side of the grass-cutting equipment 1 contacts a climbable object, the climbable object may pass through the gap between any two adjacent protrusions 6 and contact the machine body 2 first, instead of contacting the protrusions 6 first. This causes the grass-cutting equipment 1 to climb upwards along the climbable object, increasing the risk of contact with the cutter head. When the distance between any two adjacent protrusions 6 is less than 20mm, the distribution of multiple protrusions 6 will be too compact, which will generate greater resistance when the grass operation equipment 1 encounters dense grass, which is not conducive to the normal operation of the grass operation equipment 1.
[0041] Figure 6 is a structural schematic diagram of the chassis 21 proposed in an embodiment of this application. Referring to Figures 2, 3, 4, 5, and 6, in one possible implementation, each of the grass comb teeth 51 has a blocking portion 513 on the side near the cutting component 4. That is, the blocking portion 513 is located away from the grass to be worked on compared to the vertical portion 511. Schematally, along the forward direction of the grass working equipment 1, the cutting component 4, the blocking portion 513, and the vertical portion 511 are arranged sequentially. The ground clearance of the blocking portion 513 is less than that of the vertical portion 511; that is, the fifth end 5131 of the blocking portion 513 protrudes in a direction perpendicular to the forward direction of the grass working equipment 1 compared to the fourth end 5111 of the vertical portion 511. When the grass work equipment 1 comes into contact with a climbable object, if the contact resistance provided by the vertical part 511 and the inclined part 512 is insufficient to prevent the grass work equipment 1 from continuing to climb, the blocking part 513 can further form a new contact resistance with the climbable object, which helps to prevent the grass work equipment 1 from continuing to climb, eliminates potential safety hazards, and ultimately improves the safety of the grass work equipment 1.
[0042] Figure 7 is a semi-sectional view of the chassis 21 shown in Figure 6. Referring to Figures 3 and 7, in one possible implementation, the chassis 21 includes a handle 211 integrated with the grass comb assembly 5. The handle 211 has a groove 212 on the side facing away from the grass comb assembly 5. The groove 212 allows a hand to reach in and contact the handle 211 to lift the entire lawn work equipment 1. When the working location of the lawn work equipment 1 needs to be changed, it can be moved over a large area by simply lifting it through the groove 212. In extreme cases, if the lawn work equipment 1 climbs up a climbable object, posing a risk of the cutting component cutting the object, the lawn work equipment 1 can be quickly moved away using the handle 211 integrated with the grass comb assembly 5 at the front of the chassis 21, thus averting the cutting danger.
[0043] In summary, this embodiment of the application, by setting vertical and inclined sections at a certain angle on the grass comb teeth at the front end of the grass-growing equipment, prevents the grass-growing equipment from moving along the user's feet during automatic walking, thereby effectively avoiding potential safety hazards and ensuring user safety.
[0044] In the description of the embodiments of this application, it should be noted that the orientation or positional relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other indicators are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0045] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art will understand that all or part of the processes for implementing the above embodiments and equivalent variations made in accordance with the claims of this application are still within the scope of this application.
Claims
1. A grassland operation device, characterized in that, include: Organism; A walking assembly, mounted on the machine body, is used to propel the grass-working equipment forward; A cutting component, located at the bottom of the machine body, is used to trim the grass on the lawn to be trimmed; A grass comb assembly is provided on the machine body. The grass comb assembly includes a plurality of grass comb teeth, which are spaced apart along the direction of travel perpendicular to the grass working equipment. Each grass comb tooth has a vertical part and an inclined part on the side away from the cutting assembly. The vertical part is located at the end near the grass to be worked on, so as to contact an object located in front of the grass working equipment.
2. The grassland operation equipment according to claim 1, characterized in that, The inclined portion includes a first inclined segment and a second inclined segment, the first inclined segment, the second inclined segment and the vertical portion are connected in sequence, and the second inclined segment is inclined from the end connected to the vertical portion toward a direction away from the cutting component.
3. The grassland operation equipment according to claim 2, characterized in that, The angle between the second inclined section and the forward direction of the grass operation equipment is 35-60°.
4. The grassland operation equipment according to claim 1, characterized in that, The grass comb assembly has multiple protrusions on its opposite sides. The protrusions protrude in a direction perpendicular to the chassis of the machine body and in the direction of travel of the grass working equipment.
5. The grassland operation equipment according to claim 4, characterized in that, The end of the protrusion away from the chassis is flush with the end of the vertical portion away from the inclined portion.
6. The grassland operation equipment according to claim 4, characterized in that, The distance between any two adjacent protrusions is 20-30mm.
7. The grassland operation equipment according to claim 1, characterized in that, The vertical part is 45-60mm above the ground.
8. The grassland operation equipment according to claim 1, characterized in that, The distance between any two adjacent comb teeth is 10-20mm.
9. The grassland operation equipment according to claim 1, characterized in that, Each of the grass comb teeth has a blocking part on the side near the cutting component, and the height of the blocking part from the ground is less than the height of the vertical part from the ground.
10. The grassland operation equipment according to claim 1, characterized in that, The chassis of the machine body includes a handle that is integrated with the grass comb assembly, and the handle has a groove on the side opposite to the grass comb assembly.