An adaptive terrain garden lawn trimmer

Abstract

The utility model discloses a kind of garden lawn trimmers of self-adapting topography, it is related to garden lawn trimming technical field, including equipment car body, the inside of equipment car body is fixed with carrying inner frame, the inside sliding connection of another end of carrying inner frame has two limiting guide pillars, the lower end of two limiting guide pillars is fixed with grabbing grass harrow body, the inside rotation connection of grabbing grass harrow body upper end has shaft, the outside of shaft and located the both sides of grabbing grass harrow body are fixed with support arm, the lower end rotation connection of two support arms has roll, the outside of each limiting guide pillar is equipped with first spring. The utility model provides a kind of garden lawn trimmers of self-adapting topography, by roll, always downward extrusion and ground adhere using the elastic property of first spring, second spring, to realize the effect of adjusting the distance between grabbing grass harrow body and ground, and can avoid protruding land mass to pass roll, wear-resistant washer directly contact with grabbing grass harrow body.

Description

Technical Field

[0001] This utility model relates to the field of garden lawn mowing technology, and in particular to a garden lawn mowing machine that adapts to terrain. Background Technology

[0002] A garden is a beautiful natural environment and recreational space created within a specific area using engineering techniques and artistic methods. This includes constructing hills, stacking rocks, managing water features, planting trees and flowers, building structures, and arranging garden paths. Land, water, plants, and architecture are the four basic elements of a garden. Among plants, lawns are the most widely used. To make lawns look neater and more beautiful, they need to be mowed regularly, which requires the use of lawnmowers.

[0003] For example, Chinese utility model patent (CN220457936U) discloses a garden greening pruning device, which describes: "The compression spring provides downward compression force to the grass rake, thereby making the support roller always closely fit the uneven ground, so that the grass rake can adaptively rise and fall according to the uneven ground."

[0004] However, when there are raised patches on the ground, and these patches are located between the two support rollers, the patches will come into direct contact with the grass rake during the movement of the aforementioned equipment. This can easily cause the grass rake to embed itself in the ground. Furthermore, since the position between the support rollers and the grass rake in the aforementioned patent is relatively fixed, the distance between the grass rake and the ground cannot be adjusted during the adaptive lifting and lowering process. Therefore, this application proposes an adaptive terrain lawn mower. Utility Model Content

[0005] Based on this, it is necessary to provide a terrain-adaptive lawn mower to address the aforementioned technical problems. Through the overall structural design, the distance between the roller and the rake body can be finely adjusted. The roller, utilizing the elasticity of the first and second springs, is always pressed downwards and in contact with the ground, thereby achieving the effect of adjusting the distance between the rake body and the ground. Furthermore, through the structural design of the roller and wear-resistant washer, protruding patches can be prevented from directly contacting the rake body by passing over the roller and wear-resistant washer, thus completely avoiding the situation where the rake body embeds into the ground.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A terrain-adaptive lawn mower for use in lawn mowing.

[0008] The device includes a vehicle body, with an inner frame fixed to its inner side. One end of the inner frame is equipped with a trimming component, and the other end of the inner frame is internally connected to two limiting guide posts. The lower ends of the two limiting guide posts are fixed to a grass-grabbing rake body, which is located inside the inner frame. The upper ends of the two limiting guide posts penetrate the vehicle body and are slidably connected to it. A rotating shaft is rotatably connected to the upper end of the grass-grabbing rake body. Support arms are fixed to the outer side of the rotating shaft and on both sides of the grass-grabbing rake body. A roller is rotatably connected to the lower end between the two support arms. A first spring is sleeved on the outer side of each limiting guide post. The upper end of the first spring is fixed to the inner frame, and the lower end of the first spring is fixed to the grass-grabbing rake body.

[0009] In a preferred embodiment of the adaptive terrain lawn mower provided by this utility model, a first gantry frame is fixed at the upper end of the equipment body and outside the two limiting guide posts. A second spring is fixed at the upper end of each of the two limiting guide posts, and the upper end of the second spring is fixed to the first gantry frame.

[0010] As a preferred embodiment of the adaptive terrain lawn mower provided by this utility model, a wear-resistant washer is fixed on the outer side of the roller, and an adjustment cavity is opened at the center of the grass-grabbing rake body and on the outer side of the rotating shaft. A cover is provided at the upper end of the adjustment cavity, and the cover is fixed to the grass-grabbing rake body.

[0011] In a preferred embodiment of the adaptive terrain lawn mower provided by this utility model, a worm gear is fixed on the outer side of the rotating shaft and inside the adjustment cavity, a support shaft is rotatably connected inside the cover and outside the worm gear, a worm is fixed on the outer side of the support shaft and inside the adjustment cavity, the worm is meshed with the worm gear, and a handle is fixed at the upper end of the support shaft and at the upper end of the cover.

[0012] In a preferred embodiment of the adaptive terrain lawn mower provided by this utility model, a first flat gear is fixed on the outer side of the support shaft and between the handle and the cover. A gear groove is provided inside the cover and on the outer side of the first flat gear. A second flat gear is slidably connected to the upper end of the inner side of the gear groove. The upper end of the second flat gear meshes with the first flat gear. A third spring is fixed to the lower end of the second flat gear. The lower end of the third spring is fixed to the cover. The third spring is located inside the gear groove.

[0013] In a preferred embodiment of the adaptive terrain lawn mower provided by this utility model, the mowing assembly includes a drive seat. The drive seat is slidably connected between the equipment body and the inner frame. A cutting disc is provided at the lower end of the drive seat. A second gantry frame is fixed at the upper end of the equipment body and above the drive seat. The drive seat and the second gantry frame are slidably connected. A hollow screw cylinder is rotatably connected inside the upper end of the second gantry frame. A screw rod is threadedly connected to the inner side of the hollow screw cylinder. The lower end of the screw rod is fixed to the drive seat. A third spur gear is fixed to the outer side of the hollow screw cylinder. A reduction motor is fixed at the upper end of the second gantry frame and outside the third spur gear. A fourth spur gear is fixed to the output end of the reduction motor. The fourth spur gear meshes with the third spur gear.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The adaptive terrain lawn mower provided by this utility model, through its overall structural design, allows for fine adjustment of the distance between the roller and the rake body. The roller utilizes the elasticity of the first and second springs to continuously press downwards and adhere to the ground, thereby achieving the effect of adjusting the distance between the rake body and the ground. Furthermore, through the structural design of the roller and wear-resistant washer, it can prevent protruding patches from directly contacting the rake body by passing over the roller and wear-resistant washer, thus completely preventing the rake body from embedding into the ground. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the overall structure of the adaptive terrain lawn mower provided by this utility model;

[0018] Figure 2 A schematic diagram of the outer side of the grass-grabbing rake body of the adaptive terrain garden lawn mower provided by this utility model;

[0019] Figure 3 A schematic diagram of the inner side of the adjustment cavity of the adaptive terrain lawn mower provided by this utility model;

[0020] Figure 4 A schematic diagram of the trimming component of the adaptive terrain lawn mower provided by this utility model.

[0021] The markings in the diagram are explained as follows:

[0022] 1. Equipment body; 2. Inner frame; 3. Limiting guide column; 4. Grass rake body; 5. Rotary shaft; 6. Support arm; 7. Roller; 8. Wear-resistant washer; 9. First spring; 10. First gantry frame; 11. Second spring; 12. Adjustment chamber; 13. Cover; 14. Worm gear; 15. Support shaft; 16. Worm; 17. Handle; 18. First spur gear; 19. Gear groove; 20. Second spur gear; 21. Third spring; 22. Second gantry frame; 23. Hollow screw barrel; 24. Screw; 25. Drive seat; 26. Cutting disc; 27. Third spur gear; 28. Gear reducer motor; 29. ​​Fourth spur gear. Detailed Implementation

[0023] As described in the background art, when there is a raised patch on the ground and the raised patch is located between two support rollers, the patch will come into direct contact with the grass rake during the movement of the above-mentioned equipment, which will also easily cause the grass rake to embed into the ground. Furthermore, since the position between the support rollers and the grass rake in the above-mentioned patent is relatively fixed, the distance between the grass rake and the ground cannot be adjusted during the adaptive lifting and lowering process of the grass rake.

[0024] To solve this technical problem, this utility model provides a terrain-adaptive garden lawn mower, which is applied to garden lawn mowing;

[0025] The device includes a vehicle body 1, with an inner frame 2 fixed to the inside of the vehicle body 1. A trimming component is provided at one end of the inner frame 2, and two limiting guide posts 3 are slidably connected to the other end of the inner frame 2. A grass-grabbing rake body 4 is fixed to the lower end of the two limiting guide posts 3. The grass-grabbing rake body 4 is located inside the inner frame 2. The upper ends of the two limiting guide posts 3 penetrate the vehicle body 1 and are slidably connected to the vehicle body 1. A rotating shaft 5 is rotatably connected to the upper end of the grass-grabbing rake body 4. Support arms 6 are fixed to the outside of the rotating shaft 5 and on both sides of the grass-grabbing rake body 4. A roller 7 is rotatably connected to the lower end between the two support arms 6. A first spring 9 is sleeved on the outside of each limiting guide post 3. The upper end of the first spring 9 is fixed to the inner frame 2, and the lower end of the first spring 9 is fixed to the grass-grabbing rake body 4.

[0026] The adaptive terrain lawn mower provided by this utility model, through its overall structural design, allows for fine adjustment of the distance between the roller 7 and the grass-grabbing rake body 4. The roller 7 utilizes the elasticity of the first spring 9 to continuously press downwards and adhere to the ground, thereby achieving the effect of adjusting the distance between the grass-grabbing rake body 4 and the ground. Furthermore, through the structural design of the roller 7, it can prevent protruding plots from directly contacting the grass-grabbing rake body 4 by passing over the roller 7, thus completely preventing the grass-grabbing rake body 4 from embedding into the ground.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Example 1:

[0030] Please refer to Figure 1-4 An adaptive terrain lawn mower includes a vehicle body 1, an inner frame 2 fixed to the inside of the vehicle body 1, a mowing component at one end of the inner frame 2, two limiting guide posts 3 slidably connected inside the other end of the inner frame 2 in order to collect the mowed weeds, a grass-grabbing rake body 4 fixed to the lower end of the two limiting guide posts 3, and a first spring 9 sleeved on the outside of each limiting guide post 3, the upper end of the first spring 9 being fixed to the inner frame 2, and the lower end of the first spring 9 being fixed to the grass-grabbing rake body 4;

[0031] The grass rake body 4 is located inside the inner frame 2. The upper ends of the two limiting guide columns 3 pass through the equipment body 1 and are slidably connected to the equipment body 1. In order to avoid the grass rake body 4 from directly contacting the ground, a rotating shaft 5 is rotatably connected to the upper end of the grass rake body 4. Support arms 6 are fixed on the outer side of the rotating shaft 5 and on both sides of the grass rake body 4. A roller 7 is rotatably connected between the lower ends of the two support arms 6.

[0032] In order to adjust the distance between the grass rake body 4 and the ground, an adjustment cavity 12 is provided at the center of the grass rake body 4 and outside the rotating shaft 5. A cover 13 is provided at the upper end of the adjustment cavity 12 and the cover 13 is fixed to the grass rake body 4.

[0033] Specifically, a worm gear 14 is fixed on the outer side of the rotating shaft 5 and inside the adjustment cavity 12. A support shaft 15 is rotatably connected inside the cover 13 and outside the worm gear 14. A worm 16 is fixed on the outer side of the support shaft 15 and inside the adjustment cavity 12. The worm 16 is meshed with the worm gear 14. A handle 17 is fixed on the upper end of the support shaft 15 and on the upper end of the cover 13. By controlling the rotation of the rotating shaft 5, the roller 7 can be driven to rotate around the rotating shaft 5 as the axis, thereby achieving the effect of adjusting the distance between the roller 7 and the grass-grabbing rake body 4.

[0034] After adjustment, in order to limit and fix the rotation of the rotating shaft 5, a first flat gear 18 is fixed on the outside of the support shaft 15 and between the handle 17 and the cover 13. A gear groove 19 is opened inside the cover 13 and outside the first flat gear 18. A second flat gear 20 is slidably connected to the upper end of the inner side of the gear groove 19. The upper end of the second flat gear 20 is meshed with the first flat gear 18. A third spring 21 is fixed to the lower end of the second flat gear 20. The lower end of the third spring 21 is fixed to the cover 13. The third spring 21 is located inside the gear groove 19.

[0035] Example 2:

[0036] The adaptive terrain lawn mower provided in Example 1 has been further optimized, specifically, as follows: Figure 2 and Figure 4 As shown, in order to further assist the roller 7 in providing extrusion force and ensure that the roller 7 is always in close contact with the ground, a first gantry frame 10 is fixed at the upper end of the equipment body 1 and outside the two limiting guide columns 3. A second spring 11 is fixed at the upper end of each of the two limiting guide columns 3. The upper end of the second spring 11 is fixed to the first gantry frame 10. In order to improve the service life of the roller 7, a wear-resistant washer 8 is fixed on the outside of the roller 7.

[0037] Specifically, the trimming assembly includes a drive seat 25. The drive seat 25 is slidably connected between the equipment body 1 and the inner frame 2. A cutting disc 26 is provided at the lower end of the drive seat 25. The cutting disc 26 is located inside the inner frame 2. A second gantry 22 is fixed at the upper end of the equipment body 1 and above the drive seat 25. The drive seat 25 is located inside the second gantry 22 and is slidably connected to the second gantry 22. A hollow screw cylinder 23 is rotatably connected inside the upper end of the second gantry 22. A screw 24 is threadedly connected to the inner side of the hollow screw cylinder 23. The lower end of the screw 24 is fixed to the drive seat 25. A third spur gear 27 is fixed to the outer side of the hollow screw cylinder 23. A reduction motor 28 is fixed at the upper end of the second gantry 22 and outside the third spur gear 27. A fourth spur gear 29 is fixed to the output end of the reduction motor 28. The fourth spur gear 29 meshes with the third spur gear 27.

[0038] All of the above electrical components are electrically connected to the main controller and power supply, and the existing publicly available power connection technology will not be described in detail here. The mechanical transmission components provided in this utility model are all closed designs that can be opened for maintenance, and according to the mechanical manual, as long as they are properly maintained, these mechanical transmission components can normally realize the transmission movement claimed above.

[0039] The adaptive terrain lawn mower provided by this utility model is used as follows: When the device moves on the ground, the elasticity of the first spring 9 and the second spring 11 provides downward squeezing force to the roller 7, so that the roller 7 and the wear-resistant washer 8 can always be in close contact with the ground, thereby effectively avoiding direct contact between the grass rake body 4 and the ground, and ensuring the adaptive lifting and lowering of the grass rake body 4.

[0040] After pressing the second flat gear 20 to make it slide into the gear groove 19, the meshing of the second flat gear 20 and the first flat gear 18 is released, making it easier for the gripping handle 17 to rotate the support shaft 15 and the worm 16. The meshing of the worm 16 and the worm wheel 14 drives the rotating shaft 5 to rotate, which in turn drives the roller 7 to rotate around the rotating shaft 5 as the axis, thereby fine-tuning the distance between the grass rake body 4 and the roller 7, thus achieving the effect of adjusting the distance between the grass rake body 4 and the ground.

[0041] After adjustment, when the teeth of the first flat gear 18 and the second flat gear 20 are aligned, the second flat gear 20 is released and the elasticity of the third spring 21 is used to push the second flat gear 20 back to its original position, so that the second flat gear 20 re-meshes with the first flat gear 18, thereby limiting the rotation of the support shaft 15 again, and thus fixing the rotation of the rotating shaft 5.

[0042] The starting reduction motor 28 drives the fourth flat gear 29 to rotate. The meshing of the fourth flat gear 29 and the third flat gear 27 drives the hollow screw barrel 23 to rotate. With the threaded connection between the hollow screw barrel 23 and the screw 24, it is convenient to drive the drive seat 25 to move up and down through the guidance of the second gantry 22. This makes it easy to adjust the height of the cutting disc 26 and achieve the effect of adjusting the lawn mowing height according to the required height.

Claims

1. A terrain-adaptive lawn mower, characterized in that, The equipment includes a vehicle body (1), with an inner frame (2) fixed to its inner side. One end of the inner frame (2) is equipped with a trimming component, and the other end of the inner frame (2) is internally connected to two limiting guide posts (3). The lower ends of the two limiting guide posts (3) are fixed with a grass-grabbing rake body (4), which is located inside the inner frame (2). The upper ends of the two limiting guide posts (3) penetrate the vehicle body (1) and are connected to the vehicle body (1). The upper end of the grass rake body (4) is rotatably connected to a rotating shaft (5). Support arms (6) are fixed on the outer side of the rotating shaft (5) and on both sides of the grass rake body (4). Rollers (7) are rotatably connected between the lower ends of the two support arms (6). A first spring (9) is sleeved on the outer side of each limiting guide post (3). The upper end of the first spring (9) is fixed to the inner frame (2), and the lower end of the first spring (9) is fixed to the grass rake body (4).

2. The adaptive terrain lawn mower according to claim 1, characterized in that, A first gantry frame (10) is fixed at the upper end of the equipment vehicle body (1) and outside the two limiting guide posts (3). A second spring (11) is fixed at the upper end of each of the two limiting guide posts (3), and the upper end of the second spring (11) is fixed to the first gantry frame (10).

3. The adaptive terrain lawn mower according to claim 1, characterized in that, A wear-resistant washer (8) is fixed on the outside of the roller (7). An adjustment cavity (12) is provided at the center of the grass rake body (4) and on the outside of the rotating shaft (5). A cover (13) is provided at the upper end of the adjustment cavity (12). The cover (13) is fixed to the grass rake body (4).

4. The adaptive terrain lawn mower according to claim 3, characterized in that, A worm gear (14) is fixed on the outside of the rotating shaft (5) and inside the adjusting cavity (12). A support shaft (15) is rotatably connected inside the cover (13) and outside the worm gear (14). A worm (16) is fixed on the outside of the support shaft (15) and inside the adjusting cavity (12). The worm (16) meshes with the worm gear (14). A handle (17) is fixed at the upper end of the support shaft (15) and at the upper end of the cover (13).

5. The adaptive terrain lawn mower according to claim 4, characterized in that, A first spur gear (18) is fixed on the outside of the support shaft (15) and between the handle (17) and the cover (13). A gear groove (19) is provided inside the cover (13) and outside the first spur gear (18). A second spur gear (20) is slidably connected to the upper end of the inner side of the gear groove (19). The upper end of the second spur gear (20) is meshed with the first spur gear (18). A third spring (21) is fixed to the lower end of the second spur gear (20). The lower end of the third spring (21) is fixed to the cover (13). The third spring (21) is located inside the gear groove (19).

6. The adaptive terrain lawn mower according to claim 1, characterized in that, The trimming assembly includes a drive seat (25). The drive seat (25) is slidably connected between the equipment body (1) and the mounting inner frame (2). A cutting disc (26) is provided at the lower end of the drive seat (25). A second gantry frame (22) is fixed at the upper end of the equipment body (1) and above the drive seat (25). The drive seat (25) and the second gantry frame (22) are slidably connected. A hollow screw cylinder (23) is rotatably connected inside the upper end of the second gantry frame (22). The hollow screw barrel (23) is threaded with a screw rod (24) on its inner side. The lower end of the screw rod (24) is fixed to the drive seat (25). A third spur gear (27) is fixed to the outer side of the hollow screw barrel (23). A geared motor (28) is fixed to the upper end of the second gantry (22) and to the outer side of the third spur gear (27). A fourth spur gear (29) is fixed to the output end of the geared motor (28). The fourth spur gear (29) meshes with the third spur gear (27).

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