Lawn mower for landscaping
By introducing a blade sharpening device and a screen structure into the lawnmower, the problems of dull blades and grass leaf handling have been solved, realizing automatic blade sharpening and grass leaf sorting functions, thus improving mowing efficiency and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional lawnmower blades become dull after cutting for a period of time and need to be stopped and sharpened. Also, the cut grass cannot be directly crushed and returned to the field, making the operation cumbersome.
A lawnmower for landscaping was designed, equipped with a blade sharpening device and a screen structure, to achieve the functions of cyclical sharpening of spiral blades and sieving of grass leaves. The blades are elastically sharpened by a whetstone, and the grass leaves are collected or crushed and returned to the field through the cooperation of the screen and the ground roller.
It enables lawnmowers to automatically sharpen their blades during operation, avoiding downtime for maintenance, and can also shred grass leaves and return them to the field while cutting the lawn, improving work efficiency and ease of operation.
Smart Images
Figure CN224069209U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of landscaping technology, and in particular to a lawn mower for landscaping. Background Technology
[0002] Landscape gardening refers to the creation of a beautiful natural environment and recreational space within a specific area through engineering techniques and artistic methods. This involves modifying the terrain (or further constructing hills, stacking rocks, and managing water features), planting trees and flowers, constructing buildings, and arranging garden paths. A lawnmower is used in the gardening process; it is a mechanical tool for trimming lawns, vegetation, and other vegetation.
[0003] In the existing technology, for traditional lawnmowers, the blades become dull due to friction after cutting for a period of time. At this time, the machine needs to be stopped to sharpen the blades, which is time-consuming. In addition, the cut lawn cannot be broken up during the cutting process. If the user needs to break up the lawn and return it to the field, an additional device is required. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a lawn mower for landscaping that features sharpening blades and elastic shredding, thus solving the problems mentioned in the background section.
[0005] This utility model provides the following technical solution: a lawn mower for landscaping, comprising a frame, two of which are symmetrically arranged. A transmission box is fixedly installed on one side of the frame, and a roller is rotatably installed on one side of the frame. A drive gear is located inside the transmission box at the center of one side of the roller. An extension block is fixedly installed on one side of the transmission box, and a ground roller is rotatably installed between the extension blocks. A connecting column is located in the center of the ground roller. A column sleeve is fixedly installed inside the transmission box. A shearing device is rotatably installed between the transmission boxes. A screen is slidably installed between the extension blocks. A cutting block is fixedly installed between the extension blocks on one side of the screen. A sharpening device is slidably installed between the other sides of the transmission boxes. The sharpening device and the screen are located on opposite sides. A hanging column is fixedly connected above the sharpening device between the frames. A grass collection box is hung on the outer ring of the hanging column, and a hook is located in the center of the outer ring of the grass collection box.
[0006] The above-mentioned structure and the sharpening device achieve the effect of cyclically sharpening the spiral blades during operation. The combination of the screen and the hanging column provides users with different options, such as collecting grass leaves or crushing the grass leaves and returning them to the field.
[0007] Preferably, a handle is fixedly connected between the extension blocks, a groove is provided on the top of the extension block, a sliding column is fixedly installed inside the groove, the two ends of the screen are slidably installed inside the groove and located on the outer ring of the sliding column, and the two ends of the screen are adapted to the shape of the groove.
[0008] With the above structural design, by setting up a sliding groove and a sliding column, a certain sliding elasticity is provided for the screen, so that the screen can be driven by the connecting column and the screen generates a shaking force.
[0009] Preferably, the shearing device includes a rotating shaft and a driven gear. The rotating shaft is rotatably installed inside the transmission box. Both ends of the rotating shaft are provided with driven gears. A synchronous toothed belt is rotatably sleeved between the driven gear and the outer ring of the driving gear. The driving gear is connected to the driven gear through the synchronous toothed belt. The outer ring of the rotating shaft is uniformly fixed with ring plates in a linear array. The outer ring of the ring plates is uniformly connected with spiral blades in a circular ring.
[0010] With the above structural design, when the roller rotates, it drives the driving gear to rotate synchronously. The driving gear drives the driven gear to rotate synchronously through its outer ring synchronous toothed belt, thus realizing the transmission operation.
[0011] Preferably, a locking post is fixedly installed in the middle of the outer ring of the screen, and a groove is opened inside the locking post. The locking post is slidably sleeved on the outer ring of the connecting post, and the groove is in close contact with the outer ring of the connecting post. Slider blocks are provided at both ends of the screen, and the sliders are slidably sleeved on the outer ring of the sliding column. A spring A is fixedly connected between one side of the slider and the inner wall of the sliding groove, and the spring A is located on the outer ring of the sliding column.
[0012] With the above structural setup, the ground roller affects the position of the locking column through the connecting column. When the connecting column rotates with the ground roller, it rotates up and down inside the groove and rotates eccentrically, causing the screen to slide inside the chute.
[0013] Preferably, the sharpening device includes a sliding plate and a whetstone. The whetstone is evenly rotated and installed in an arc-shaped array inside the sliding plate. End blocks are provided on both sides of the sliding plate. Studs are slidably installed inside the end blocks. The end of the stud is threadedly installed inside the stud sleeve. A spring B is fixedly connected between one end of the stud and the end block, and a spring C is fixedly connected between the other end of the end block and the transmission box.
[0014] With the above structural design, the rotation of the spiral blade will cause the grinding stone located inside the skateboard to rotate. When the grinding stone rotates, it will contact the spiral blade and grind the cutting edge of the spiral blade, thus achieving the operation of elastic grinding.
[0015] This utility model has the following advantages:
[0016] 1. This lawnmower for landscaping uses a shearing device and a sharpening device to achieve cyclic sharpening of the spiral blades during operation. After cutting, the spiral blades rotate to the inside of the sharpening device. Due to the elastic positioning of the sharpening device, the blade edge of the spiral blade is in contact with the inner surface of the sharpening device. When the spiral blades come into contact with the whetstone, the whetstone sharpens the spiral blades due to its properties. This cycle repeats, achieving the effect of sharpening the spiral blades while cutting the lawn, allowing it to work continuously without stopping the machine.
[0017] 2. This lawnmower for landscaping uses a structure consisting of a ground roller, screen, and clamping posts to separate grass blades from leaf debris. The spiral blades cut the lawn into grass blades, which in turn break them into smaller pieces. These smaller pieces are then thrown towards the inner surface of the screen by the centrifugal force of the spiral blades. They flow through the screen's openings to the back of the screen. The grass blades and leaf debris mix together, causing the screen openings to become clogged. The ground roller moves along the ground, and due to friction, it continuously rolls, causing the connecting posts to rotate and continuously change position. This causes the screen to reciprocate within the chute, thus ejecting the grass blades that are clogging the screen openings, while the leaf debris passes through the screen openings, effectively separating and returning the leaf debris to the field. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the shearing device and screen structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of the transmission box of this utility model;
[0021] Figure 4 This is a schematic diagram of the internal structure of the shearing device of this utility model.
[0022] In the diagram: 1. Frame; 11. Transmission box; 12. Extension block; 13. Handle; 14. Slide groove; 15. Slide column; 16. Ground roller; 17. Connecting column; 18. Column sleeve; 19. Cutting block; 2. Roller; 21. Drive gear; 3. Shearing device; 31. Driven gear; 32. Ring plate; 33. Spiral blade; 4. Screen; 41. Clamping post; 42. Sliding block; 43. Spring A; 5. Sharpening device; 51. Sharpening stone; 52. Stud; 53. Spring B; 54. Spring C; 6. Hanging post; 61. Hay collection box; 62. Hook and ring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-4 A lawnmower for landscaping includes a frame 1, with two symmetrically arranged frames 1. A transmission box 11 is fixedly installed on one side of the frame 1. A roller 2 is rotatably installed on one side of the frame 1. A drive gear 21 is located inside the transmission box 11 at the center of one side of the roller 2. An extension block 12 is fixedly installed on one side of the transmission box 11. A handle 13 is fixedly connected between the extension blocks 12. A ground roller 16 is rotatably installed between the extension blocks 12. A connecting column 17 is located in the middle of the ground roller 16. A column sleeve 18 is fixedly installed inside the transmission box 11. A shearing device 3 is rotatably installed between the transmission boxes 11. A screen 4 is slidably installed between the extension blocks 12. A cutting block 19 is fixedly installed between the extension blocks 12 on one side of the screen 4. A sharpening device 5 is slidably installed between the other sides of the transmission box 11. The sharpening device 5 and the screen 4 are located on opposite sides. A hanging column 6 is fixedly connected above the sharpening device 5 between the frames 1.
[0025] In practical applications, this device, through the setting of the sharpening device 5, achieves the effect of cyclically sharpening the spiral blade 33 during operation. By pushing this device, the drive gear 21 drives the shearing device 3 to rotate as a whole through the synchronous toothed belt. When the spiral blade 33 rotates, its cutting edge comes into contact with the inner surface of the sharpening device 5. When it comes into contact with the whetstone 51, it will be sharpened by the whetstone 51. With this setting, the spiral blade 33 can be cyclically sharpened during operation without stopping the machine to sharpen the blade, thus improving grass cutting efficiency.
[0026] By setting up the screen 4 and the hanging post 6, users can have different options. When it is necessary to collect grass leaves, the grass collection box 61 is installed. The cut grass leaves are centrifugally propelled by the spiral blade 33 and fly from the arc surface of the screen 4 into the grass collection box 61 to collect the grass leaves. When it is necessary to shred and return the grass to the field, the grass collection box 61 is disassembled, and the grass leaves fly to the uncut lawn. When the device cuts the grass leaves again, it shreds them into small pieces. The small pieces can fall through the screen holes of the screen 4 onto the cut lawn surface to achieve shredding and returning the grass to the field.
[0027] Please see Figures 1-3 The top of the extension block 12 is provided with a sliding groove 14, and a sliding column 15 is fixedly installed inside the sliding groove 14. The two ends of the screen 4 are slidably installed inside the sliding groove 14 and are located on the outer ring of the sliding column 15. The two ends of the screen 4 are adapted to the shape of the sliding groove 14.
[0028] By setting the sliding groove 14 and the sliding column 15, a certain sliding elastic force is provided to the screen 4, so that the screen 4 can be driven by the connecting column 17, thereby generating a shaking force on the screen 4, which shakes away the grass leaves blocking the surface of the screen 4 and avoids clogging.
[0029] Please see Figures 1-4 The shearing device 3 includes a rotating shaft and a driven gear 31. The rotating shaft is rotatably installed inside the transmission box 11. Both ends of the rotating shaft are provided with driven gears 31. A synchronous toothed belt is rotatably sleeved between the driven gear 31 and the outer ring of the driving gear 21. The driving gear 21 is connected to the driven gear 31 through the synchronous toothed belt. The outer ring of the rotating shaft is uniformly fixed with ring plates 32 in a linear array. The outer ring of the ring plates 32 is uniformly connected with spiral blades 33 in a circular ring. When the spiral blades 33 rotate, their edges are in contact with one side of the cutting block 19. The grass located at the end of the cutting block 19 is cut by the rotation of the spiral blades 33, thus realizing the shearing operation.
[0030] By setting up the cooperation between the shearing device 3 and the cutting block 19, the lawn is trimmed in a cyclic rotation. The driving force of the shearing device 3 comes from the driving gear 21 and the synchronous toothed belt. When the roller 2 rotates, it drives the driving gear 21 to rotate synchronously. The driving gear 21 drives the driven gear 31 to rotate synchronously through its outer ring synchronous toothed belt, thus realizing the transmission operation.
[0031] Please see Figures 1-4 A locking post 41 is fixedly installed in the middle of the outer ring of the screen 4. The locking post 41 has a groove inside. The locking post 41 is slidably sleeved on the outer ring of the connecting post 17. The groove is in close contact with the outer ring of the connecting post 17. When the ground roller 16 rotates, the position of the locking post 41 is changed by the rotation of the connecting post 17, which causes the screen 4 to vibrate and shake off the grass leaves blocking the screen holes of the screen 4. The two ends of the screen 4 are provided with sliders 42. The sliders 42 are slidably sleeved on the outer ring of the sliding post 15. A spring A43 is fixedly connected between one side of the slider 42 and the inner wall of the sliding groove 14. The spring A43 is located on the outer ring of the sliding post 15.
[0032] When the device is working, the roller 2 and the outer wall of the ground roller 16 are evenly attached to the ground. Due to friction and pushing force, the ground roller 16 and the roller 2 rotate. The roller 2 drives the shearing device 3. The ground roller 16 affects the position of the locking post 41 through the connecting post 17. When the connecting post 17 rotates with the ground roller 16, it rotates up and down inside the groove. The connecting post 17 rotates eccentrically, which drives the screen 4 to slide inside the slide groove 14. This drives the screen 4 to move. Through the reciprocating sliding of the screen 4, the grass blades blocked on the surface of the screen 4 are shaken off. The broken grass blades can pass through the screen holes and are located on the surface of the sheared lawn.
[0033] Please see Figures 1-4The sharpening device 5 includes a sliding plate and a whetstone 51. The whetstone 51 is installed in an arc-shaped array and rotates evenly inside the sliding plate. End blocks are provided on both sides of the sliding plate. Studs 52 are slidably installed inside the end blocks. The end of the stud 52 is threadedly installed inside the sleeve 18. A spring B53 is fixedly connected between one end of the stud 52 and the end block, and a spring C54 is fixedly connected between the other end of the end block and the transmission box 11.
[0034] The sharpening device 5, through the cooperation of the grinding stone 51, spring B53, and spring C54, allows the slide plate to slide elastically on the outer ring of the stud 52. When the spiral blade 33 rotates to fit against the slide plate, the position of the sharpening device 5 is not affected. When the spiral blade 33 continues to rotate to contact the grinding stone 51, since the surface of the grinding stone 51 protrudes from the surface of the slide plate, the rotation of the spiral blade 33 will cause the grinding stone 51 to rotate inside the slide plate. When the grinding stone 51 rotates and contacts the spiral blade 33, it will sharpen the cutting edge of the spiral blade 33, achieving elastic sharpening. Since the grinding stone 51 is worn, the relative position of the sharpening device 5 can be changed by twisting the stud 52 in the inner ring of the sleeve 18 during use, so that the grinding stone 51 is always in close contact with the cutting edge surface of the spiral blade 33.
[0035] Please see Figures 1-2 The outer ring of the hanging post 6 is attached to a hay collection box 61. The hay collection box 61 has a hook 62 in the middle of the outer ring. When using it, the user attaches a rope to the outer ring of the hook 62, holds the end of the rope by hand, and adjusts the length of the rope to change the tilt angle of the hay collection box 61, so that the hay collection box 61 can be positioned at different angles to collect grass and broken leaves.
[0036] Working principle: During use, the user can choose whether to install the grass collection box 61. When grass leaves need to be collected, the grass collection box 61 is installed, and a rope is tied to the inner ring of the hook 62 to control the angle of the grass collection box 61. The device is then pushed on the lawn surface. During pushing, the roller 2 drives the driven gear 31 through the driving gear 21. The driven gear 31 drives the entire shearing device 3 to rotate, and the spiral blade 33 moves the grass. When the blade of the spiral blade 33 coincides with the cutting block 19, the grass leaves are cut. Due to the centrifugal force driven by the spiral blade 33, the grass leaves rotate. At this time, since the grass leaves are not pulverized, they cannot pass through the screen 4 and are thrown out along the inner surface curvature of the screen 4. The grass blades then enter the grass collection box 61 in a parabolic trajectory. Depending on the user's pushing speed, the angle at which the grass blades are flung varies. By adjusting the tilt angle of the grass collection box 61, the grass blades are evenly distributed inside the grass collection box 61. After rotating and cutting, the spiral blade 33 rotates to the inside of the sharpening device 5. Due to the elastic positioning of the sharpening device 5, the blade part of the spiral blade 33 fits against the inner surface of the sharpening device 5 after it comes to the inside of the sharpening device 5. When the spiral blade 33 comes into contact with the whetstone 51, the whetstone 51 sharpens the spiral blade 33 due to its special properties. This process is repeated, achieving the effect of sharpening the spiral blade 33 while cutting the lawn, so that it can work continuously without stopping the machine to sharpen.
[0037] When grass blades need to be shredded and returned to the field, the grass collection box 61 is removed. During operation, the grass blades cut by the spiral blades 33 pass through the inner surface of the screen 4 and are discharged onto the uncut lawn. As the device moves, it shreds the cut grass blades and cuts the uncut lawn into grass blades. This process is repeated to achieve the effect of shredding grass blades. The specific principle of the shredding process is as follows: the lawn is cut into grass blades by the spiral blades 33 and the cutting block 19, and the grass blades are cut into small pieces. The small pieces are then centrifugally deflected by the spiral blades 33. The grass blades are thrown towards the inner surface of the screen 4 and flow through the screen holes to the back of the screen 4. Since the grass blades and broken leaves are mixed together, the screen holes of the screen 4 will become clogged. At this time, as the ground roller 16 moves along the ground, the friction of the ground roller 16 will cause the connecting column 17 to rotate and continuously change the locking column 41, causing the screen 4 to reciprocate inside the slide groove 14. As a result, the grass blades that are blocking the screen holes of the screen 4 are thrown out by the spiral blade 33, while the broken leaves are screened out through the screen holes of the screen 4.
Claims
1. A lawn mower for landscaping, comprising a frame (1), characterized in that: Said frame body (1) is provided with two symmetrically, one side of the frame body (1) is fixedly installed with a transmission box (11), one side of the frame body (1) is rotatably installed with a roller (2), the middle of one side of the roller (2) is provided with a driving gear (21) inside the transmission box (11), one side of the transmission box (11) is fixedly installed with an extension block (12), the extension block (12) is rotatably installed with a ground roller (16) between, the middle of the ground roller (16) is provided with a connecting column (17), the inside of the transmission box (11) is fixedly installed with a column sleeve (18), the transmission box (11) is rotatably installed with a shearing device (3) between, the extension block (12) is slidably installed with a screen (4) between, the extension block (12) is fixedly installed with a cutting block (19) on one side of the screen (4), the other side of the transmission box (11) is slidably installed with a blade sharpening device (5), the blade sharpening device (5) is located on the opposite side of the screen (4), the frame body (1) is fixedly connected with a hanging column (6) above the blade sharpening device (5), the outer ring of the hanging column (6) is hung with a grass collecting box (61), the middle of the outer ring of the grass collecting box (61) is provided with a carabiner (62).
2. The lawn mower according to claim 1, characterized in that: The extension block (12) is fixedly connected with a handle rod (13), the top of the extension block (12) is provided with a sliding groove (14), the inside of the sliding groove (14) is fixedly installed with a sliding column (15), both ends of the screen (4) are slidably installed in the inside of the sliding groove (14) and located on the outer ring of the sliding column (15), the shape of both ends of the screen (4) and the sliding groove (14) is matched.
3. The lawn mower according to claim 2, characterized in that: The shearing device (3) comprises a rotating shaft and a driven gear (31), the rotating shaft is rotatably installed in the inside of the transmission box (11), both ends of the rotating shaft are provided with the driven gear (31), the outer ring of the driven gear (31) and the outer ring of the driving gear (21) are rotatably sleeved with a synchronous gear belt, the driving gear (21) is transmissionally connected with the driven gear (31) through the synchronous gear belt, the outer ring of the rotating shaft is linearly arranged and uniformly fixedly installed with a ring piece (32), the outer ring of the ring piece (32) is circularly arranged and uniformly connected with a spiral blade (33).
4. The lawn mower according to claim 3, characterized in that: The middle of the outer ring of the screen (4) is fixedly installed with a clamping column (41), the inside of the clamping column (41) is provided with a notch, the clamping column (41) is slidably sleeved on the outer ring of the connecting column (17), the notch is fitted with the outer ring of the connecting column (17), both ends of the screen (4) are provided with a sliding block (42), the sliding block (42) is slidably sleeved on the outer ring of the sliding column (15), one side of the sliding block (42) and the inner wall of the sliding groove (14) are fixedly connected with a spring A (43), the spring A (43) is located on the outer ring of the sliding column (15).
5. The lawn mower according to claim 4, characterized in that: The grinding device (5) includes a slide plate and grinding stones (51), the slide plate is internally arc-shaped array uniformly rotatably installed with grinding stones (51), both sides of the slide plate are provided with end blocks, the end blocks are internally slidably installed with studs (52), the studs (52) are threadedly installed in the column sleeves (18), one side of the end of the stud (52) is fixedly connected with spring B (53) between the end block, and the other side of the end block is fixedly connected with spring C (54) between the transmission box (11).