High-safety lawn mower for garden engineering

Abstract

The application discloses a lawn mower with high safety in the technical field of garden engineering, which comprises a grass hitting head and a grass hitting rope, a protective cover is arranged on the side of the grass hitting head, an adjusting mechanism is arranged in the protective cover, and the adjusting mechanism can adjust the length of the grass hitting rope after the grass hitting rope is broken.

Description

Technical Field

[0001] This invention relates to the field of landscape engineering technology, specifically to a highly safe lawn mower for landscape engineering. Background Technology

[0002] Rope lawnmowers are safer than traditional blade lawnmowers and can be used in a wider range of environments. Existing trimming ropes typically extend about 15cm beyond the trimmer head. However, these ropes are prone to breaking when they come into contact with hard objects during operation. If the rope length is not replenished in time, it will significantly reduce mowing efficiency. Currently, workers usually adjust the rope length manually based on experience. In case of errors, the rope may become too long, which not only reduces mowing efficiency but also creates safety hazards.

[0003] Based on this, the present invention designs a highly safe lawn mower for landscaping projects to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a highly safe lawn mower for landscaping projects, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a highly safe lawn mower for garden engineering, comprising a mowing head and a mowing rope, wherein a protective cover is provided on the side of the mowing head, and an adjustment mechanism is provided inside the protective cover, wherein the adjustment mechanism can adjust the length of the mowing rope after the mowing rope breaks.

[0006] As a further embodiment of the present invention, the adjusting mechanism includes a first clamping plate and a first sliding groove; the first clamping plate is configured as two symmetrically arranged plates, each of which is fixedly connected to a second clamping plate, and the distance between the two first clamping plates is greater than the distance between the two second clamping plates; each of the first clamping plates is fixedly connected to a first sliding plate; the first sliding groove is configured as two symmetrically arranged plates; the first sliding groove is formed on the top inner wall of the protective cover, and the first sliding groove is composed of a first inclined groove, a first transverse groove, a second transverse groove, a third transverse groove, and a second inclined groove connected end to end; the first sliding groove is arrow-shaped; a driving mechanism is provided on the side of the first sliding plate, and the driving mechanism is used to drive the first sliding plate to move along the first sliding groove.

[0007] As a further embodiment of the present invention, the driving mechanism includes a cylinder, which is fixedly connected to a protective cover. A second sliding plate is fixedly connected to the output shaft of the cylinder. Two first sliders arranged symmetrically are elastically slidably connected to the second sliding plate. A guide post is fixedly connected to the top of the first slider, and the guide post is slidably engaged with a first groove. Each of the first sliders is provided with an arc-shaped groove, and an arc-shaped block is movably connected in each arc-shaped groove. The two arc-shaped blocks are respectively fixedly connected to the two first sliding plates.

[0008] As a further embodiment of the present invention, guide rollers are rotatably mounted on the opposite sidewalls of the two first clamping plates.

[0009] As a further embodiment of the present invention, pointed clamping blocks are fixedly installed on the opposite side walls of the two second clamping plates.

[0010] As a further embodiment of the present invention, an arc-shaped groove is provided on the inner wall of the protective cover, and two symmetrically arranged second sliders are slidably connected in the arc-shaped groove. The two first sliders are respectively inserted into the two second sliders. A reset spring for resetting is fixedly connected to the second slider. A traction rope is fixedly connected to each of the second sliders. The end of the traction rope away from the second slider passes through the side wall of the protective cover and extends to the top of the protective cover, where a first take-up roller is fixedly connected. The first take-up rollers are rotatably connected to the protective cover. A first gear is fixedly connected to the rotating shaft of each of the first take-up rollers. The two first gears mesh with an incomplete gear, and the incomplete gear is connected to the grass trimmer head through a gearbox.

[0011] As a further embodiment of the present invention, the hay-cutting head includes a housing, inside which two second take-up rollers arranged symmetrically in a circular pattern are rotatably mounted. The second take-up rollers are used to wind hay-cutting rope. A sprocket is fixedly connected to the rotating shaft of each of the two second take-up rollers, and the two sprockets are connected by chain drive. A one-way bearing is installed at the bottom of the housing, and the second take-up rollers are rotatably connected to the housing through the one-way bearing. A cover plate is snapped onto the top of the housing.

[0012] As a further embodiment of the present invention, a frame is provided on the outside of the protective cover, and the protective cover is fixedly connected to the frame; a motor for driving the grass trimming head is fixedly connected to the top of the frame; and rollers and handles are installed on the outside of the frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The present invention, through the arrangement of a first clamping plate, a first sliding groove, a second clamping plate and a first sliding plate, allows the first sliding plate to move along the first sliding groove, thereby enabling the first clamping plate to first clamp the weeding rope and then move along the weeding rope. When the first clamping plate disengages from the end of the weeding rope, the second clamping plate can clamp the weeding rope again. The second clamping plate can also drive the end of the weeding rope to move, ensuring that the optimal weeding length can be adjusted regardless of where the weeding rope breaks. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0017] Figure 3 This is a bottom view of the overall structure of the present invention;

[0018] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0019] Figure 5 This is a cross-sectional view of part of the structure of the present invention;

[0020] Figure 6 This is a schematic diagram of the grass trimming head structure of the present invention;

[0021] Figure 7 This is a schematic diagram of the grass trimming head installation structure of the present invention.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Trimming head; 2. Trimming rope; 3. Protective cover; 4. First clamping plate; 5. First slide groove; 51. First inclined groove; 52. First horizontal groove; 53. Second horizontal groove; 54. Third horizontal groove; 55. Second inclined groove; 6. Second clamping plate; 7. First sliding plate; 8. Cylinder; 9. Second sliding plate; 10. First slider; 11. Guide post; 12. Arc groove; 13. Arc block; 14. Guide roller; 15. Clamping block; 16. Arc slide groove; 17. Second slider; 18. Return spring; 19. Traction rope; 20. First take-up roller; 21. First gear; 22. Incomplete gear; 23. Gearbox; 24. Housing; 25. Second take-up roller; 26. Sprocket; 27. Chain; 28. One-way bearing; 29. ​​Cover plate; 30. Frame; 31. Motor; 32. Roller; 33. Handle. Detailed Implementation

[0024] Please see Figure 1-7 The present invention provides a technical solution: a high-safety lawn mower for garden engineering, including a mowing head 1 and a mowing rope 2. A protective cover 3 is provided on the side of the mowing head 1, and an adjustment mechanism is provided inside the protective cover 3. The adjustment mechanism can adjust the length of the mowing rope 2 after the mowing rope 2 breaks.

[0025] The adjustment mechanism includes a first clamping plate 4 and a first sliding groove 5; the first clamping plate 4 is configured as two symmetrically arranged, and each first clamping plate 4 is fixedly connected to a second clamping plate 6, the distance between the two first clamping plates 4 is greater than the distance between the two second clamping plates 6; each first clamping plate 4 is fixedly connected to a first sliding plate 7; the first sliding groove 5 is configured as two symmetrically arranged; the first sliding groove 5 is opened on the top inner wall of the protective cover 3, and the first sliding groove 5 is composed of a first inclined groove 51, a first transverse groove 52, a second transverse groove 53, a third transverse groove 54 and a second inclined groove 55 connected end to end; the first sliding groove 5 is arrow-shaped; a driving mechanism is provided on the side of the first sliding plate 7, and the driving mechanism is used to drive the first sliding plate 7 to move along the first sliding groove 5.

[0026] At work, such as Figure 1 As shown, when the lawnmower is weeding, the trimmer head 1 drives the trimmer rope 2 to rotate at high speed. The trimmer rope 2 breaks the weeds, thus removing them. When the trimmer rope 2 comes into contact with a hard object and breaks, such as... Figures 2-4 As shown, the hay trimmer 1 pauses its work, and one side of the hay trimmer rope 2 is positioned... Figure 3 The position is shown, and then the drive mechanism is activated to start working. The drive mechanism will drive the first slide plate 7 to move the first clamping plate 4 and the second clamping plate 6 towards the position shown. Figure 4As shown in the diagram, the first sliding plate 7 will first move outward along the first inclined groove 51 (the two first clamping plates 4 will move away from each other), and then move horizontally to the right along the first transverse groove 52. When the first sliding plate 7 reaches the connection between the first transverse groove 52 and the second transverse groove 53, the two first sliding plates 7 will move closer to each other along the second transverse groove 53. When the first sliding plate 7 reaches the connection between the second transverse groove 53 and the third transverse groove 54, the two first clamping plates 4 will clamp the straw rope 2. It should be noted that when the straw rope 2 breaks, only one section will break. When the first sliding plate 7 reaches the connection between the first transverse groove 52 and the second transverse groove 53, the first clamping plates 4 will move... When the first clamping plate 4 is positioned close to the hay trimming head 1, it ensures that the first clamping plate 4 can hold the hay trimming rope. The clamping force of the first clamping plate 4 on the hay trimming rope is relatively small and will not cause the hay trimming rope 2 to move. When the first sliding plate 7 moves to the left along the third transverse groove 54, the first sliding plate 7 will cause the first clamping plate 4 and the second clamping plate 6 to move to the left simultaneously. After the broken end of the hay trimming rope 2 is separated from the first clamping plate 4, the second clamping plate 6 will clamp the end of the hay trimming rope 2 again, and thereafter the second clamping plate 6 can drive the end of the hay trimming rope 2 to move to the left. It should be noted that the first clamping plate 4 plays a detection role. When the first clamping plate 4 is separated from the end of the hay trimming rope 2, the second clamping plate 6 will move to the left. The second clamping plate 6 can further clamp the straw rope 2. Since the length of the third transverse groove 54 is constant and equal to the optimal length of the straw rope 2, when the second clamping plate 6 moves to the left until it clamps the straw rope 2, the distance that the second clamping plate 6 has moved within the third transverse groove 53 is the remaining length of the straw rope 2. Regardless of where the straw rope 2 breaks, it can be ensured that the second clamping plate 6 can always clamp the end of the straw rope 2. Then, the first sliding plate 7 drives the second clamping plate 6 to move to the left along the third transverse groove 54. When the first sliding plate 7 moves to the left end of the third transverse groove 53, the second clamping plate 6 drives the end of the straw rope 2 to the designated position. At this time, the length of the straw rope 2 is... The length is adjusted to the optimal weeding length; then, as the first slide plate 7 moves to the left along the second inclined groove 55, the second clamping plate 6 will slowly release the clamping of the weeding rope 2; through the arrangement of the first clamping plate 4, the first groove 5, the second clamping plate 6 and the first slide plate 7, when the first slide plate 7 moves along the first groove 5, it can drive the first clamping plate 4 to first clamp the weeding rope 2, and then move along the weeding rope 2. When the first clamping plate 4 is separated from the end of the weeding rope 2, the second clamping plate 6 can clamp the weeding rope 2 again. The second clamping plate 6 can drive the end of the weeding rope 2 to move, which can ensure that the weeding rope 2 can be adjusted to the optimal weeding length no matter where it breaks.

[0027] As a further embodiment of the present invention, the driving mechanism includes a cylinder 8, which is fixedly connected to a protective cover 3. A second slide plate 9 is fixedly connected to the output shaft of the cylinder 8. Two first sliders 10 arranged symmetrically are elastically slidably connected to the second slide plate 9. A guide post 11 is fixedly connected to the top of the first slider 10, and the guide post 11 is slidably engaged with the first slide groove 5. Each of the first sliders 10 is provided with an arc-shaped groove 12, and an arc-shaped block 13 is movably connected in each arc-shaped groove 12. The two arc-shaped blocks 13 are respectively fixedly connected to the two first slide plates 7.

[0028] At work, such as Figures 2-4 As shown, the cylinder 8 can drive the second slide plate 9 to move closer to the grass trimmer 1, and the second slide plate 9 can drive the first slide plate 7 to move closer to the grass trimmer 1 through the first slider 10.

[0029] As a further embodiment of the present invention, guide rollers 14 are rotatably mounted on the opposite side walls of the two first clamping plates 4.

[0030] At work, such as Figure 2 As shown, the first clamping plate 4 moves more smoothly when it clamps the straw rope 2 and moves along the straw rope 2, thanks to the setting of the guide roller 14.

[0031] As a further embodiment of the present invention, pointed clamping blocks 15 are fixedly installed on the opposite side walls of the two second clamping plates 6.

[0032] At work, such as Figure 2 As shown, by setting the clamping block 15, the second clamping plate 6 can be more stable when clamping the straw rope 2, and the second clamping plate 6 can better drive the end of the straw rope 2 to move.

[0033] As a further embodiment of the present invention, an arc-shaped groove 16 is provided on the inner wall of the protective cover 3. Two symmetrically arranged second sliders 17 are slidably connected in the arc-shaped groove 16. The two first slide plates 7 are respectively inserted into the two second sliders 17. A reset spring 18 for resetting is fixedly connected to the second slider 17. A traction rope 19 is fixedly connected to each of the second sliders 17. The end of the traction rope 19 away from the second slider 17 passes through the side wall of the protective cover 3 and extends to the top of the protective cover 3, where a first take-up roller 20 is fixedly connected. The first take-up rollers 20 are rotatably connected to the protective cover 3. A first gear 21 is fixedly connected to the rotating shaft of each of the first take-up rollers 20. The two first gears 21 mesh with an incomplete gear 22. The incomplete gear 22 is connected to the grass trimmer 1 through a gearbox 23.

[0034] At work, such as Figure 1 and Figure 5As shown, when the trimmer head 1 rotates, it can drive the incomplete gear 22 to rotate synchronously through the gearbox 23. When the incomplete gear 22 meshes with the first gear 21, it can drive the first gear 21 to rotate. The first gear 21 will drive the first take-up roller 20 to rotate and take up the traction rope 19. The traction rope 19 will drive the second slider 17 to slide along the arc-shaped slide groove 16. The second slider 17 will drive the first slide plate 7 to move synchronously. The first slide plate 7 can scrape off the debris attached to the inner wall of the protective cover 3, which can prevent the accumulation of weeds from affecting the normal operation of the trimmer rope 2. When the incomplete gear 22 disengages from the first gear 21, the second slider 17 will return to the starting position under the elastic force of the return spring 18. Figure 5 The initial state is shown; it should be noted that, in this embodiment, when the position of the straw rope 2 is in the initial state, it is located at... Figure 3 As shown, after the grass trimmer 1 stops working, it can rotate to the position indicated by the return spring 18. Figure 3 The state shown makes it much easier to adjust the length of the straw rope 2 later.

[0035] As a further embodiment of the present invention, the hay-cutting head 1 includes a housing 24, within which two second take-up rollers 25 arranged symmetrically in a circular pattern are rotatably mounted. The second take-up rollers 25 are used to wind the hay-cutting rope 2. A sprocket 26 is fixedly connected to the rotating shaft of each of the two second take-up rollers 25, and the two sprockets 26 are connected by a chain 27. A one-way bearing 28 is installed at the bottom of the housing 24, and the second take-up rollers 25 are rotatably connected to the housing 24 through the one-way bearing 28. A cover plate 29 is snapped onto the top of the housing 24.

[0036] At work, such as Figure 6 As shown, when one side of the straw rope 2 is pulled, the length of the other side of the straw rope 2 will also be adjusted accordingly. And due to the setting of the one-way bearing 28, the second take-up roller 25 can only release the straw rope 2.

[0037] As a further embodiment of the present invention, a frame 30 is provided on the outside of the protective cover 3, and the protective cover 3 is fixedly connected to the frame 30; a motor 31 for driving the grass trimmer 1 is fixedly connected to the top of the frame 30; and rollers 32 and handles 33 are installed on the outside of the frame 30.

[0038] At work, such as Figure 7 As shown, workers can move the frame 30 and the weeding head 1 in the garden where weeding is needed by pushing the handle.

[0039] Working principle: such as Figure 1 As shown, when the lawnmower is weeding, the trimmer head 1 drives the trimmer rope 2 to rotate at high speed. The trimmer rope 2 breaks the weeds, thus removing them. When the trimmer rope 2 comes into contact with a hard object and breaks, such as... Figures 2-4 As shown, the hay trimmer 1 pauses its work, and one side of the hay trimmer rope 2 is positioned... Figure 3 The position is shown, and then the drive mechanism is activated to start working. The drive mechanism will drive the first slide plate 7 to move the first clamping plate 4 and the second clamping plate 6 towards the position shown. Figure 4 As shown in the diagram, the first sliding plate 7 will first move outward along the first inclined groove 51 (the two first clamping plates 4 will move away from each other), and then move horizontally to the right along the first transverse groove 52. When the first sliding plate 7 reaches the connection between the first transverse groove 52 and the second transverse groove 53, the two first sliding plates 7 will move closer to each other along the second transverse groove 53. When the first sliding plate 7 reaches the connection between the second transverse groove 53 and the third transverse groove 54, the two first clamping plates 4 will clamp the straw rope 2. It should be noted that when the straw rope 2 breaks, only one section will break. When the first sliding plate 7 reaches the connection between the first transverse groove 52 and the second transverse groove 53, the first clamping plates 4 will move... When the first clamping plate 4 is positioned close to the hay trimming head 1, it ensures that the first clamping plate 4 can hold the hay trimming rope. The clamping force of the first clamping plate 4 on the hay trimming rope is relatively small and will not cause the hay trimming rope 2 to move. When the first sliding plate 7 moves to the left along the third transverse groove 54, the first sliding plate 7 will cause the first clamping plate 4 and the second clamping plate 6 to move to the left simultaneously. After the broken end of the hay trimming rope 2 is separated from the first clamping plate 4, the second clamping plate 6 will clamp the end of the hay trimming rope 2 again, and thereafter the second clamping plate 6 can drive the end of the hay trimming rope 2 to move to the left. It should be noted that the first clamping plate 4 plays a detection role. When the first clamping plate 4 is separated from the end of the hay trimming rope 2, the second clamping plate 6 will move to the left. The second clamping plate 6 can further clamp the straw rope 2. Since the length of the third transverse groove 54 is constant and equal to the optimal length of the straw rope 2, when the second clamping plate 6 moves to the left until it clamps the straw rope 2, the distance that the second clamping plate 6 has moved within the third transverse groove 53 is the remaining length of the straw rope 2. Regardless of where the straw rope 2 breaks, it can be ensured that the second clamping plate 6 can always clamp the end of the straw rope 2. Then, the first sliding plate 7 drives the second clamping plate 6 to move to the left along the third transverse groove 54. When the first sliding plate 7 moves to the left end of the third transverse groove 53, the second clamping plate 6 drives the end of the straw rope 2 to the designated position. At this time, the length of the straw rope 2 is... The length is adjusted to the optimal weeding length; then, as the first slide plate 7 moves to the left along the second inclined groove 55, the second clamping plate 6 will slowly release the clamping of the weeding rope 2; through the arrangement of the first clamping plate 4, the first groove 5, the second clamping plate 6 and the first slide plate 7, when the first slide plate 7 moves along the first groove 5, it can drive the first clamping plate 4 to first clamp the weeding rope 2, and then move along the weeding rope 2. When the first clamping plate 4 is separated from the end of the weeding rope 2, the second clamping plate 6 can clamp the weeding rope 2 again. The second clamping plate 6 can drive the end of the weeding rope 2 to move, which can ensure that the weeding rope 2 can be adjusted to the optimal weeding length no matter where it breaks.

Claims

1. A high-safety lawn mower for landscaping projects, comprising a mowing head (1) and mowing ropes (2), characterized in that: The side of the grass-cutting head (1) is provided with a protective cover (3), and an adjustment mechanism is provided inside the protective cover (3). The adjustment mechanism can adjust the length of the grass-cutting rope (2) after the grass-cutting rope (2) breaks. The adjustment mechanism includes a first clamping plate (4) and a first sliding groove (5); the first clamping plate (4) is configured as two symmetrically arranged, and each first clamping plate (4) is fixedly connected to a second clamping plate (6), and the distance between the two first clamping plates (4) is greater than the distance between the two second clamping plates (6); each first clamping plate (4) is fixedly connected to a first sliding plate (7); the first sliding groove (5) is configured as two symmetrically arranged; the first sliding groove (5) is opened on the top inner wall of the protective cover (3), and the first sliding groove (5) is composed of a first inclined groove (51), a first horizontal groove (52), a second horizontal groove (53), a third horizontal groove (54) and a second inclined groove (55) connected end to end; the first sliding groove (5) is arrow-shaped; a driving mechanism is provided on the side of the first sliding plate (7), and the driving mechanism is used to drive the first sliding plate (7) to move along the first sliding groove (5).

2. The high-safety lawnmower for landscaping projects according to claim 1, characterized in that: The driving mechanism includes a cylinder (8), which is fixedly connected to a protective cover (3). A second slide plate (9) is fixedly connected to the output shaft of the cylinder (8). Two first sliders (10) arranged symmetrically are elastically slidably connected to the second slide plate (9). A guide post (11) is fixedly connected to the top of the first slider (10). The guide post (11) is slidably engaged with the first slide groove (5). Each of the first sliders (10) is provided with an arc groove (12). An arc block (13) is movably connected in the arc groove (12). The two arc blocks (13) are fixedly connected to the two first slide plates (7) respectively.

3. The high-safety lawnmower for landscaping projects according to claim 1, characterized in that: Guide rollers (14) are rotatably mounted on the opposite side walls of the two first clamping plates (4).

4. A high-safety lawnmower for landscaping projects according to claim 1, characterized in that: Pointed clamping blocks (15) are fixedly installed on the opposite side walls of the two second clamping plates (6).

5. A high-safety lawnmower for landscaping projects according to claim 2, characterized in that: The inner wall of the protective cover (3) is provided with an arc-shaped groove (16), and two second sliders (17) arranged symmetrically are slidably connected in the arc-shaped groove (16). The two first slide plates (7) are respectively inserted into the two second sliders (17). A reset spring (18) for resetting is fixedly connected to the second slider (17). A traction rope (19) is fixedly connected to each of the second sliders (17). The end of the traction rope (19) away from the second slider (17) passes through the side wall of the protective cover (3) and extends to the top of the protective cover (3) where a first take-up roller (20) is fixedly connected. The first take-up rollers (20) are rotatably connected to the protective cover (3). A first gear (21) is fixedly connected to the rotating shaft of the first take-up rollers (20). The two first gears (21) mesh with an incomplete gear (22). The incomplete gear (22) is connected to the grass trimmer (1) through a gearbox (23).

6. A high-safety lawnmower for landscaping projects according to claim 1, characterized in that: The hay-cutting head (1) includes a housing (24), inside which two second take-up rollers (25) arranged symmetrically in a circle are rotatably installed. The second take-up rollers (25) are used to wind hay-cutting rope (2). Sprockets (26) are fixedly connected to the rotating shafts of the two second take-up rollers (25). The two sprockets (26) are connected by a chain (27). A one-way bearing (28) is installed at the bottom of the housing (24). The second take-up rollers (25) are rotatably connected to the housing (24) through the one-way bearing (28). A cover plate (29) is snapped onto the top of the housing (24).

7. A high-safety lawnmower for landscaping projects according to claim 1, characterized in that: The protective cover (3) is provided with a frame (30) on the outside, and the protective cover (3) is fixedly connected to the frame (30); a motor (31) for driving the grass-cutting head (1) is fixedly connected to the top of the frame (30); rollers (32) and handles (33) are installed on the outside of the frame (30).

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