A mowing mechanism, a mowing accessory and a mowing robot
By designing the grass-scraping space and suction force of the mowing mechanism to prevent grass from splashing and clogging, the problems of grass blockage and entanglement in lawnmowers are solved, achieving efficient mowing and safe operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HANYANG TECHNOLOGY CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-14
Smart Images
Figure CN224482193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lawnmower technology, and in particular to a lawnmower mechanism, lawnmower accessories and lawnmower robot. Background Technology
[0002] A lawnmower is a mechanical tool used for trimming lawns, vegetation, etc. It utilizes an engine to drive blades at high speeds, significantly increasing mowing speed and saving workers' time and manpower. A lawnmower typically consists of a walking robot, blades, and a rotary drive. The rotary drive is installed inside the robot and connected to the blades. The rotary drive drives the blades to rotate at high speed to cut the grass. During this high-speed rotation, the cut grass can easily fly out and enter the machine casing through gaps, causing blockages. In severe cases, it can become entangled in the rotary drive, affecting its output torque and reducing mowing efficiency. Summary of the Invention
[0003] This utility model provides a mowing mechanism, mowing accessories, and a mowing robot to solve the technical problems of grass clogging that occur in existing lawnmowers.
[0004] An embodiment of this utility model provides a lawn mowing mechanism, including a rotary drive, an anti-clogging frame, a blade, and a housing with a first through hole; the rotary drive is disposed in the first through hole, and the output end of the rotary drive is connected to the blade;
[0005] The anti-clogging frame includes a support plate, an anti-touch arm, and at least two connecting arms. One end of each connecting arm is connected to the support plate, and the other end of each connecting arm is connected to the support plate. A grass-scraping space is provided between the support plate, the anti-touch arm, and two adjacent connecting arms. The support plate is mounted on the rotary drive component.
[0006] The rotary drive is used to drive the blade to rotate, and the suction force generated by the rotation of the blade is used to attract grass located in the grass-scraping space.
[0007] Optionally, the blade includes a bent portion disposed on the blade body, the end of the bent portion away from the blade body extending toward the grass-scraping space, and the blade body having a cutting edge on the side away from the bent portion.
[0008] Optionally, the mowing mechanism further includes a fixing block and an anti-clogging disc with a second through hole. The anti-clogging disc is fixedly sleeved on the output end of the rotary drive through the second through hole. The fixing block is fixedly installed on the output end of the rotary drive. The blade is pressed between the anti-clogging disc and the fixing block.
[0009] Optionally, the support plate is provided with a third through hole, and the output end of the rotary drive component passes through the third through hole;
[0010] The anti-clogging disc has an annular flange, and a horizontal space is provided between the support disc and the annular flange; the horizontal space is connected to the third through hole to prevent broken grass from entering the third through hole.
[0011] Optionally, the anti-blocking disc is provided with a plurality of protrusions arranged in a ring at intervals, and each of the protrusions is provided with a first cut surface;
[0012] The blade is provided with a fourth through hole, and the blade is sleeved on all the protrusions through the fourth through hole, and the first cut surface abuts against the inner sidewall of the fourth through hole.
[0013] Optionally, the mowing mechanism further includes a pressure plate, which includes an inner plate and a vertical cylinder disposed on the inner plate. The end of the vertical cylinder away from the inner plate is provided with an outward flange. The inner plate is attached to the side of the support plate away from the rotary drive member. The end of the outward flange away from the vertical cylinder extends toward the mowing space.
[0014] Optionally, the housing is further provided with a guide groove that communicates with the first through hole; the inner diameter of the guide groove gradually increases from the end near the first through hole toward the end away from the first through hole.
[0015] Optionally, the connecting arm includes a horizontal plate and a vertical plate connecting the horizontal plate; the anti-touch arm is provided with a reinforcing protrusion.
[0016] An embodiment of this utility model also provides a lawn mowing accessory, including a caster wheel and the aforementioned lawn mowing mechanism; the caster wheel is mounted on the housing.
[0017] An embodiment of this utility model also provides a lawn mowing robot, including a mobile robot and the above-mentioned lawn mowing accessories, wherein the lawn mowing accessories are detachably mounted on the mobile robot.
[0018] In this invention, the rotary drive unit drives the blade to rotate at high speed. The blade can cut grass, and some of the cut grass will fly upwards and be blocked by the connecting arm. Therefore, the flying grass pieces will not cause blockage through the gap between the housing and the rotary drive unit. Some of the flying grass pieces fall off, while others remain on the connecting arm, and the scraping space can also accommodate some of the grass pieces. Furthermore, while the blade rotates at high speed below the scraping space, it generates an adsorption force below the scraping space. This adsorption force can attract the grass pieces in the scraping space and cause them to fall off, thus preventing a large amount of grass pieces from remaining on the anti-blocking frame and avoiding accidents caused by excessive grass entanglement on the anti-blocking frame and the housing. In this invention, the mowing mechanism can avoid accidents such as grass blockage and entanglement, ensuring mowing efficiency and smoothness. In addition, the design of the scraping space can reduce the weight of the anti-blocking frame. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a cross-sectional view of a lawn mowing mechanism provided in an embodiment of the present invention;
[0021] Figure 2 A partial structural schematic diagram of a lawn mowing mechanism provided in an embodiment of this utility model;
[0022] Figure 3 A schematic diagram of the anti-clogging frame of the lawn mowing mechanism provided in one embodiment of this utility model;
[0023] Figure 4 This is a schematic diagram of the blade of a mowing mechanism provided in one embodiment of the present invention;
[0024] Figure 5 A schematic diagram of the anti-clogging disc of a mowing mechanism provided in an embodiment of this utility model;
[0025] Figure 6 This is a structural schematic diagram of a lawn mowing accessory provided in one embodiment of the present invention.
[0026] The reference numerals in the accompanying drawings are as follows:
[0027] 1. Rotary drive component; 2. Anti-clogging frame; 21. Support plate; 211. Third through hole; 22. Anti-touch arm; 221. Reinforcing protrusion; 23. Connecting arm; 231. Horizontal plate; 232. Vertical plate; 24. Scraping space; 3. Blade; 31. Blade body; 32. Bending part; 33. Cutting edge; 34. Fourth through hole; 4. Housing; 41. First through hole; 42. Guide groove; 5. Fixing block; 6. Anti-clogging plate; 61. Second through hole; 62. Annular flange; 63. Horizontal space; 64. Protrusion; 641. First cut surface; 7. Pressure plate; 71. Inner plate; 72. Vertical cylinder; 73. Outer flange. Detailed Implementation
[0028] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0029] like Figures 1 to 3 As shown, an embodiment of the present invention provides a lawn mowing mechanism, including a rotary drive 1, an anti-clogging frame 2, a blade 3, and a housing 4 with a first through hole 41; the rotary drive 1 is disposed in the first through hole 41, and the output end of the rotary drive 1 is connected to the blade 3;
[0030] The anti-blocking frame 2 includes a support plate 21, an anti-touch arm 22, and at least two connecting arms 23. One end of each connecting arm 23 is connected to the support plate 21, and the other end of each connecting arm 23 is connected to the support plate 21. A grass-scraping space 24 is provided between the support plate 21, the anti-touch arm 22, and two adjacent connecting arms 23. The support plate 21 is mounted on the rotary drive component 1.
[0031] The rotary drive 1 is used to drive the blade 3 to rotate, and the suction force generated by the rotation of the blade 3 is used to adsorb grass located in the grass scraping space 24.
[0032] The rotary drive component 1 can be installed in the internal space of the housing 4 via a lifting drive component; the rotary drive component 1 includes, but is not limited to, a motor, and can move up and down in the first through hole 41. The anti-blocking frame 2 is located above the blade 3. The support plate 21, the anti-touch arm 22, and the connecting arm 23 are integrally formed parts. The support plate 21 can be fixedly installed on the rotary drive component 1 by screws, bolts, etc.
[0033] Specifically, the rotary drive 1 drives the blade 3 to rotate at high speed. The blade 3 can cut the grass, and some of the cut grass will fly upwards and be blocked by the connecting arm 23. Thus, the flying grass will not cause blockage through the gap between the housing 4 and the rotary drive 1. Some of the flying grass will fall off, while some will remain on the connecting arm 23. The grass-scraping space 24 can also accommodate some of the grass. In addition, while the blade 3 rotates at high speed below the grass-scraping space 24, it will generate an adsorption force below the grass-scraping space 24. This adsorption force can attract the grass in the grass-scraping space 24 and cause the grass to fall off. Thus, there will not be too much grass left on the anti-blocking frame 2, avoiding the grass blockage accident caused by too much grass entangled on the anti-blocking frame 2 and the housing 4. In this utility model, the grass-cutting mechanism can avoid grass blockage and entanglement accidents, ensuring the efficiency and smoothness of grass cutting. In addition, the design of the grass-scraping space 24 can reduce the weight of the anti-blocking frame 2.
[0034] In one embodiment, such as Figures 2 to 4 As shown, the blade 3 includes a blade body 31 with a bent portion 32 disposed on the blade body 31. The end of the bent portion 32 away from the blade body 31 extends toward the grass-scraping space 24, and the blade body 31 is provided with a cutting edge 33 on the side away from the bent portion 32.
[0035] The bent portion 32 extends upward, and the blade 3 cuts grass through the cutting edge portion 33.
[0036] Specifically, during the high-speed rotation of the blade 3 driven by the rotary drive 1, the bending part 32 can scrape the broken grass on the connecting arm 23, thereby facilitating the falling of the broken grass on the connecting arm 23 and further preventing the accident of a large amount of grass accumulating on the support plate 21.
[0037] In one embodiment, such as Figure 1 and Figure 2 As shown, the mowing mechanism also includes a fixing block 5 and an anti-clogging disc 6 with a second through hole 61. The anti-clogging disc 6 is fixedly sleeved on the output end of the rotary drive 1 through the second through hole 61. The fixing block 5 is fixedly installed on the output end of the rotary drive 1. The blade 3 is pressed between the anti-clogging disc 6 and the fixing block 5.
[0038] Wherein, the second through hole 61 is a threaded hole, the output end of the rotary drive 1 is provided with an external thread, the anti-blocking disc 6 is fixedly sleeved on the output end of the rotary drive 1 through a threaded structure; the fixing block 5 can be fixedly installed on the output end of the rotary drive 1 by screws, bolts, or threaded structures.
[0039] In this embodiment, the blade 3 is clamped between the fixing block 5 and the anti-blocking disc 6, and the blade 3 has a large contact area with the fixing block 5 and the anti-blocking disc 6, which ensures the stability of the blade 3 installed at the output end of the rotary drive 1. In addition, after removing the fixing block 5 from the output end of the rotary drive 1, the blade 3 can be removed from the anti-blocking disc 6, so the disassembly and assembly of the blade 3 is simple and convenient for replacement.
[0040] In one embodiment, such as Figure 1 , Figure 2 as well as Figure 5 As shown, the support disk 21 is provided with a third through hole 211, and the output end of the rotary drive 1 passes through the third through hole 211;
[0041] The anti-blocking disc 6 is provided with an annular flange 62, and a horizontal space 63 is provided between the support disc 21 and the annular flange 62; the horizontal space 63 is connected to the third through hole 211 and is used to prevent broken grass from entering the third through hole 211.
[0042] The third through hole 211 is located at the center of the support plate 21. The horizontal space 63 and the third through hole 211 form a maze space that is first horizontal and then vertical, and the width of the horizontal space 63 is relatively small.
[0043] Specifically, if the broken grass carried by the blade 3 wants to enter the third through hole 211, it first needs to enter the horizontal space 63 and then the vertical third through hole 211. Compared to a design with only the third through hole 211, the horizontal space 63 (that is, the annular flange 62) can prevent the broken grass from entering the third through hole 211 as much as possible. Broken grass that enters the third through hole 211 is prone to causing grass blockage and entanglement accidents.
[0044] In one embodiment, such as Figure 4 and Figure 5 As shown, the anti-blocking disc 6 is provided with a plurality of protrusions 64 arranged in a ring at intervals, and each of the protrusions 64 is provided with a first cut surface 641;
[0045] The blade 3 is provided with a fourth through hole 34. The blade 3 is sleeved on all the protrusions 64 through the fourth through hole 34, and the first cut surface 641 abuts against the inner sidewall of the fourth through hole 34.
[0046] The number of the bumps 64 can be set according to actual needs, and all the bumps 64 form a circle.
[0047] Specifically, the blade 3 is fitted onto a ring of protrusions 64 through the fourth through hole 34, and the first cut surface 641 fits against the inner wall of the fourth through hole 34, so that the first cut surface 641 can prevent the blade 3 from slipping between the protrusions 64; the spaced protrusions 64 make it easier for the blade 3 to be fitted onto the anti-clogging disc 6.
[0048] In one embodiment, such as Figure 1 As shown, the mowing mechanism also includes a pressure plate 7, which includes an inner plate 71 and a vertical cylinder 72 disposed on the inner plate 71. The end of the vertical cylinder 72 away from the inner plate 71 is provided with an outward flange 73. The inner plate 71 is attached to the side of the support plate 21 away from the rotary drive member 1. The end of the outward flange 73 away from the vertical cylinder 72 extends toward the grass scraping space 24.
[0049] Screws, bolts, etc. can pass through the inner plate 71 and the anti-blocking plate 6 and be fixedly connected to the rotary drive component 1, thereby fixing both the pressure plate 7 and the anti-blocking plate 6 onto the rotary drive component 1.
[0050] In this embodiment, the design of the vertical cylinder 72 and the outward flange 73 reduces the distance between the blade 3 and the pressure plate 7 assembly, making it less likely for the cut grass to enter the pressure plate 7 and the gap between the anti-blocking plate 6 (because there is relative rotation between the anti-blocking plate 6 and the pressure plate 7, there is a gap between the pressure plate 7 and the anti-blocking plate 6), further avoiding the grass cutting mechanism from clogging and tangling accidents.
[0051] In one embodiment, such as Figure 1 As shown, the housing 4 is also provided with a guide groove 42 that communicates with the first through hole 41; the inner diameter of the guide groove 42 gradually increases from the end close to the first through hole 41 toward the end away from the first through hole 41.
[0052] The guide groove 42 has a circular cross-section, and the inner diameter of the upper part of the guide groove 42 is smaller than the inner diameter of the lower part.
[0053] Specifically, during the up-and-down movement of the rotary drive 1 in the first through hole 41, the guide groove 42 can play a guiding role, and the inner diameter of the guide groove 42 is relatively large, so that the broken grass is prone to fall before entering the first through hole 41, thereby avoiding the broken grass from blocking the first through hole 41.
[0054] In one embodiment, such as Figure 3 As shown, the connecting arm 23 includes a horizontal plate 231 and a vertical plate 232 connecting the horizontal plate 231; the anti-touch arm 22 is provided with a reinforcing protrusion 221.
[0055] The vertical plate 232 extends downwards from the end of the horizontal plate 231. When the blade 3 splashes out broken grass, the vertical plate 232 can block the broken grass from splashing horizontally, and the horizontal plate 231 can prevent the broken grass blocked by the horizontal plate 231 from splashing onto the housing 4. In addition, the design of the horizontal plate 231 and the vertical plate 232 improves the strength and rigidity of the connecting arm 23. The design of the reinforcing protrusion 221 strengthens the strength and rigidity of the anti-touch arm 22.
[0056] like Figure 6 As shown, another embodiment of the present invention also provides a lawn mowing accessory, including a caster wheel and the above-mentioned lawn mowing mechanism; the caster wheel is mounted on the housing 4.
[0057] Multiple casters can be provided according to actual needs. The casters are installed at the bottom of the housing 4, and the lawn mowing accessory moves on the lawn or ground via the casters.
[0058] To further explain, both the blade 3 and the anti-clogging bracket 2 are located below the housing 4, and the anti-clogging bracket 2 is located to the side of the blade 3. Thus, when the user's hand reaches into the position of the blade 3, the anti-clogging bracket 2 will prevent the user's hand from contacting the blade 3. In other words, the anti-clogging bracket 2 can prevent the hand from contacting the blade 3, thus ensuring the safety of the lawn mowing accessory.
[0059] In this invention, the lawn mowing component can be used and sold as an accessory, thereby improving the market prospects of the lawn mowing accessory.
[0060] Another embodiment of this utility model provides a lawn mowing robot, including a mobile robot (not shown in the figure) and the above-mentioned lawn mowing accessories, wherein the lawn mowing accessories are detachably mounted on the mobile robot.
[0061] The lawn mowing accessory can be detachably installed on the mobile machine via locking and snap-fit components; the mobile robot can move the lawn mowing accessory on the ground and lawn, and the lawn mowing accessory can perform the function of mowing grass. The lawn mowing robot has a high degree of intelligence.
[0062] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.
Claims
1. A lawn mowing mechanism, characterized in that, It includes a rotary drive, an anti-clogging bracket, a blade, and a housing with a first through hole; the rotary drive is disposed in the first through hole, and the output end of the rotary drive is connected to the blade; The anti-clogging frame includes a support plate, an anti-touch arm, and at least two connecting arms. One end of each connecting arm is connected to the support plate, and the other end of each connecting arm is connected to the support plate. A grass-scraping space is provided between the support plate, the anti-touch arm, and two adjacent connecting arms. The support plate is mounted on the rotary drive component. The rotary drive is used to drive the blade to rotate, and the suction force generated by the rotation of the blade is used to attract grass located in the grass-scraping space.
2. The lawnmowing mechanism according to claim 1, characterized in that, The blade includes a blade body with a bent portion disposed on the blade body. One end of the bent portion extends toward the grass-scraping space away from the blade body, and the blade body has a cutting edge on the side away from the bent portion.
3. The lawnmowing mechanism according to claim 1, characterized in that, The mowing mechanism also includes a fixing block and an anti-clogging disc with a second through hole. The anti-clogging disc is fixedly sleeved on the output end of the rotary drive through the second through hole. The fixing block is fixedly installed on the output end of the rotary drive. The blade is pressed between the anti-clogging disc and the fixing block.
4. The lawnmowing mechanism according to claim 3, characterized in that, The support plate is provided with a third through hole, and the output end of the rotary drive component passes through the third through hole; The anti-clogging disc has an annular flange, and a horizontal space is provided between the support disc and the annular flange; the horizontal space is connected to the third through hole to prevent broken grass from entering the third through hole.
5. The lawnmowing mechanism according to claim 3, characterized in that, The anti-blocking disc is provided with a plurality of protrusions arranged in a ring at intervals, and each of the protrusions is provided with a first cut surface; The blade is provided with a fourth through hole, and the blade is sleeved on all the protrusions through the fourth through hole, and the first cut surface abuts against the inner sidewall of the fourth through hole.
6. The lawnmowing mechanism according to claim 3, characterized in that, The mowing mechanism further includes a pressure plate, which includes an inner plate and a vertical cylinder disposed on the inner plate. The end of the vertical cylinder away from the inner plate is provided with an outward flange. The inner plate is attached to the side of the support plate away from the rotary drive member. The end of the outward flange away from the vertical cylinder extends toward the mowing space.
7. The lawnmowing mechanism according to claim 6, characterized in that, The housing is also provided with a guide groove that connects to the first through hole; the inner diameter of the guide groove gradually increases from the end near the first through hole to the end away from the first through hole.
8. The lawnmower mechanism according to claim 1, characterized in that, The connecting arm includes a horizontal plate and a vertical plate connecting the horizontal plate; the anti-touch arm is provided with a reinforcing protrusion.
9. A lawn mowing accessory, characterized in that, It includes a moving mechanism and a mowing mechanism as described in any one of claims 1 to 8; the moving mechanism includes casters mounted on the housing.
10. A lawnmower robot, characterized in that, It includes a mobile robot and the lawn mowing accessory as described in claim 9, wherein the lawn mowing accessory is detachably mounted on the mobile robot.