Lawn mower with height adjusting structure and use method

Abstract

The invention discloses a mower with a height adjusting structure and a using method, and relates to the technical field of mowers. The mower with the height adjusting structure comprises a base, and the top of the base is fixedly connected with a driving box body. According to the mowing machine with the height adjusting structure and the using method, a connecting rolling block is arranged, a controllable telescopic machine drives a second sliding block to slide, and therefore a third fixing block drives a limiting block to move, the cutting angle of a blade is finally changed and reasonably adjusted, grass leaves can be prevented from being stacked or wound around the blade, and the mowing efficiency is improved. The hay mower has the advantages that the number of times of shutdown for cleaning due to blockage of grass leaves is reduced, the mowing efficiency of the hay mower is improved, the hay mower is matched with the height adjusting mechanism, the blades can form a cutting track similar to a spiral line during rotation, and compared with vertical cutting, the hay mower can cover a larger area and can cut grass at different heights more easily and simply; therefore, the mowing efficiency of the mowing machine is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of lawn mowers, and in particular to a lawn mower with a height adjustment structure and a use method thereof. Background Art

[0002] A lawn mower is also called a weed cutter, lawn mower, lawn trimmer, or grass comber. A lawn mower is a mechanical tool used to trim lawns and vegetation. It replaces manual mowing, has good cutting effect and fast speed, and saves time. Traditional lawn mowers are often designed with a fixed mowing height, which is difficult to adapt to the needs of diverse usage scenarios.

[0003] The utility model patent cited in China with publication number "CN110915407A" includes an adjusting handle, a rotating sleeve, a fixed shaft, a supporting wheel, a supporting wheel frame, a fixed shaft fixing frame, a swinging frame, a movable shaft and a connecting plate; the swinging frame is connected to the rotating sleeve, and the lower part of the swinging frame is connected to a connecting plate; the supporting wheel is installed on the supporting wheel frame and fastened with a supporting wheel fixing nut and a supporting wheel fixing bolt; the adjusting handle is connected to the movable shaft through a thread, the front end of the adjusting handle is connected to the fixed shaft, and fixed shaft fixing frames are respectively installed at both ends of the fixed shaft, and the fixed shaft fixing frames are used to fix it to the lawn mower.

[0004] The mowing depth of the mowing equipment on the market today is fixed and cannot be adjusted accordingly according to the actual situation of the site. Although it has excellent cutting machinery, it cannot achieve the ideal mowing effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a lawn mower with a height adjustment structure and a method of using the lawn mower to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a lawn mower with a height adjustment structure, comprising a base, a driving box body is fixedly connected to the top of the base, a handle is fixedly connected to the surface of the base, a height adjustment mechanism is fixedly connected to the inside of the driving box, the height adjustment mechanism comprises a sliding plate, a rotating mechanism is fixedly connected to the inside of the sliding plate, the rotating mechanism comprises a first rotating shaft, an angle adjustment mechanism is fixedly connected to the surface of the first rotating shaft, a wheel adjustment mechanism is fixedly connected to the inside of the base, and a guide mechanism is also fixedly connected to the inside of the base;

[0007] The height adjustment mechanism includes:

[0008] A first sliding block, wherein the first sliding block is slidably connected to the inside of the driving box;

[0009] The second motor is fixedly connected to the inside of the driving box, the inside of the second motor is rotatably connected to the first lead screw, and the sliding plate is fixedly connected to the surface of the first sliding block.

[0010] Preferably, the rotating mechanism also includes a first motor, which is fixedly connected to the top of the driving box, and the interior of the first motor is fixedly connected to a first gear through an output shaft, the first gear is meshed with a gear belt, the gear belt is meshed with a second gear, and the first rotating shaft is fixedly connected to the surface of the second gear.

[0011] Preferably, the angle adjustment mechanism includes a first fixed block, the first fixed block is fixedly connected to the surface of the first rotating shaft, the surface of the first fixed block is fixedly connected to the second fixed block, the surface of the first fixed block is provided with a groove, and the surface of the first fixed block is slidably connected to a limiting slider.

[0012] Preferably, a telescopic machine is fixedly connected inside the second fixed block, a second slider is fixedly connected inside the telescopic machine through an output, the second slider is fixedly connected to the surface of the limit slider, and the second slider is slidably connected to the first fixed block.

[0013] Preferably, the first fixed block is internally slidably connected to a connecting roller, the surface of the second sliding block is fixedly connected to a third fixed block, the surface of the connecting roller is slidably connected to a fourth fixed block, the surface of the fourth fixed block is fixedly connected to a limiting block, and the bottom of the fourth fixed block is fixedly connected to a blade.

[0014] Preferably, the wheel adjustment mechanism includes a third motor, the third motor is fixedly connected to the inside of the base, the inside of the third motor is fixedly connected to a fifth fixed block via an output shaft, the top of the fifth fixed block is fixedly connected to a buffer spring, and the surface of the fifth fixed block is rotatably connected to the wheel.

[0015] Preferably, the guiding mechanism comprises a fourth motor, the fourth motor is fixedly connected to the inside of the base, the inside of the fourth motor is rotatably connected to a limited rotation shaft, and the surface of the limited rotation shaft is fixedly connected to the limited groove.

[0016] Preferably, the interior of the limiting groove is slidably connected to a second guide plate, and the interior of the limiting groove is also slidably connected to a first guide plate, the interior of the second guide plate is slidably connected to a second lead screw, and the surface of the second lead screw is fixedly connected to a third gear.

[0017] Preferably, the interior of the limiting groove is rotatably connected to a third lead screw, the third lead screw is meshingly connected to a third gear, the surface of the third lead screw is rotatably connected to a fifth motor, and the fifth motor is fixedly connected to the surface of the limiting groove.

[0018] A method for using a lawn mower with a height adjustment structure:

[0019] S1, start the second motor, after the second motor is started, it is convenient to adjust the height of the blade to a suitable height;

[0020] S2, start the telescopic machine, the start of the telescopic machine drives the second slider to slide, thereby adjusting the angle of the blade, and adjusting the cutting angle of the blade to a suitable position;

[0021] S3, starting the third motor, the starting of the third motor drives the fifth fixing block to move up and down, thereby driving the wheel to move up and down, and adjusting the wheel to a suitable height;

[0022] S4, starting the fourth motor, the fourth motor starts to adjust the limit groove to rotate, thereby adjusting the angle between the two limit grooves, and then starting the fifth motor, the fifth motor starts to drive the third lead screw to rotate, and finally drives the second lead screw to rotate, so that the first guide plate and the second guide plate slide inside the limit groove, thereby extending the whole thereof;

[0023] S5, starting the first motor, the starting of the first motor drives the first gear to rotate, the meshing of the gears drives the second gear to rotate, and finally drives the blade to rotate and cut;

[0024] S6. The worker holds the handle and pushes it forward, causing the mower to move forward for cutting.

[0025] The present invention provides a lawn mower with a height adjustment structure and a method for using the lawn mower. The lawn mower has the following beneficial effects:

[0026] 1. A lawn mower with a height adjustment structure and a method of using the lawn mower, through a sliding plate, after starting a second motor, drives four first sliding blocks to slide stably inside a driving box, thereby adjusting the blade connected to the bottom of the sliding plate, avoiding the problem of being unable to cut grass of different heights, and having a simple structure and easier operation, thereby improving the efficiency of mowing the lawn mower.

[0027] 2. A lawn mower with a height adjustment structure and a method of using the lawn mower can control the telescopic machine to drive the second slider to slide by setting a connecting roller block, so that the third fixed block drives the limit block to move, and finally changes the cutting angle of the blade. Reasonable adjustment of the blade cutting angle can avoid grass leaves from piling up or winding around the blade, reduce the number of times the lawn mower needs to be stopped for cleaning due to grass leaf blockage, and improve the mowing efficiency of the lawn mower. In conjunction with the height adjustment mechanism, the blade can form a cutting trajectory similar to a spiral line when rotating. Compared with vertical cutting, it can cover a larger area, making it easier and simpler to cut grass of different heights, thereby further improving the mowing efficiency of the lawn mower.

[0028] 3. A lawn mower with a height adjustment structure and a method of using the lawn mower, by setting a fifth fixed block, starting the third motor to drive the fifth fixed block to move up and down, thereby adjusting the height of the wheel, avoiding the blade from cutting too deep or too shallow due to undulating terrain, reducing repeated cutting and missed cutting, improving the weeding efficiency, and avoiding blade blockage or poor cutting due to excessively high grass, thereby improving the mowing efficiency of the lawn mower.

[0029] 4. A lawn mower with a height adjustment structure and a method of using the same, by setting a second lead screw, starting a fifth motor and eventually driving the second lead screw to rotate, thereby causing the second guide plate to slide with the first guide plate, guiding the grass to the position of the blade for subsequent cutting, and preventing the grass from being dispersed around the front of the vehicle, thereby ensuring that the blade can cut the grass more efficiently, reducing cutting omissions caused by incorrect grass position, thereby improving the overall weeding efficiency, and preventing the cutting efficiency of the blade from being affected by weed entanglement, thereby further improving the mowing efficiency of the lawn mower. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the height adjustment mechanism of the present invention;

[0032] Figure 3 It is a schematic diagram of the rotating mechanism of the present invention;

[0033] Figure 4 is a cross-sectional schematic diagram of a first angle adjustment mechanism of the present invention;

[0034] Figure 5 is a cross-sectional schematic diagram of a second angle adjustment mechanism of the present invention;

[0035] Figure 6 It is a schematic diagram of a part of the wheel adjustment mechanism of the present invention;

[0036] Figure 7 For the present invention Figure 6 The enlarged schematic diagram at A in the middle;

[0037] Figure 8 It is a schematic diagram of the guiding mechanism of the present invention.

[0038] In the figure: 1, base; 2, driving box; 3, handle; 4, rotating mechanism; 41, first motor; 42, first gear; 43, gear belt; 44, second gear; 45, first rotating shaft; 5, height adjustment mechanism; 51, second motor; 52, sliding plate; 53, first slider; 54, first lead screw; 6, angle adjustment mechanism; 61, first fixed block; 62, second slider; 63, limit slider; 64, telescopic machine; 65, second fixed block; 66 , third fixed block; 67, connecting roller; 68, limit block; 69, fourth fixed block; 610, blade; 7, wheel adjustment mechanism; 71, third motor; 72, fifth fixed block; 73, buffer spring; 74, wheel; 8, guide mechanism; 81, fourth motor; 82, limit rotating shaft; 83, limit groove; 84, first guide plate; 85, second guide plate; 86, second screw; 87, third gear; 88, fifth motor; 89, third screw. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0041] Example 1: Please refer to Figure 1-5 The present invention provides a technical solution: a lawn mower with a height adjustment structure, comprising a base 1, a driving box 2 is fixedly connected to the top of the base 1, a handle 3 is fixedly connected to the surface of the base 1, a height adjustment mechanism 5 is fixedly connected inside the driving box 2, the height adjustment mechanism 5 comprises a sliding plate 52, a rotating mechanism 4 is fixedly connected inside the sliding plate 52, the rotating mechanism 4 comprises a first rotating shaft 45, an angle adjustment mechanism 6 is fixedly connected to the surface of the first rotating shaft 45, a wheel adjustment mechanism 7 is fixedly connected inside the base 1, and a guide mechanism 8 is also fixedly connected inside the base 1;

[0042] The height adjustment mechanism 5 comprises:

[0043] A first slider 53, the first slider 53 is slidably connected to the inside of the driving box 2;

[0044] The second motor 51 is fixedly connected to the inside of the driving box 2 . The inside of the second motor 51 is rotatably connected to the first lead screw 54 . The sliding plate 52 is fixedly connected to the surface of the first sliding block 53 .

[0045] The rotating mechanism 4 also includes a first motor 41, which is fixedly connected to the top of the driving box 2. The interior of the first motor 41 is fixedly connected to a first gear 42 via an output shaft. The first gear 42 is meshed with a gear belt 43, and the gear belt 43 is meshed with a second gear 44. The first rotating shaft 45 is fixedly connected to the surface of the second gear 44.

[0046] The angle adjustment mechanism 6 includes a first fixed block 61, which is fixedly connected to the surface of the first rotating shaft 45, to which the second fixed block 65 is fixedly connected, a groove is provided on the surface of the first fixed block 61, and a limiting slider 63 is slidably connected to the surface of the first fixed block 61.

[0047] The second fixed block 65 is fixedly connected with the telescopic machine 64 inside, and the telescopic machine 64 is fixedly connected with the second slider 62 inside through the output. The second slider 62 is fixedly connected to the surface of the limit slider 63, and the second slider 62 is slidably connected to the first fixed block 61.

[0048] The first fixed block 61 is internally slidably connected to a connecting roller 67, the surface of the second slider 62 is fixedly connected to a third fixed block 66, the surface of the connecting roller 67 is slidably connected to a fourth fixed block 69, the surface of the fourth fixed block 69 is fixedly connected to a limiting block 68, and the bottom of the fourth fixed block 69 is fixedly connected to a blade 610.

[0049] When in use, the second motor 51 is started, and the start of the second motor 51 drives the first lead screw 54 to rotate. The rotation of the first lead screw 54 drives the first slider 53 connected to the surface slidingly to slide. The sliding of the first slider 53 drives the sliding plate 52 to move. The up and down movement of the sliding plate 52 drives the first rotating shaft 45 to move up and down. The movement of the first rotating shaft 45 finally drives the height adjustment of the blade 610. Then, the telescopic machine 64 is started. The start of the telescopic machine 64 drives the second slider 62 to slide on the surface of the first fixed block 61 through the output shaft. The sliding of the second slider 62 drives the third fixed block 66 to move. The movement of the third fixed block 66 drives the movement of the internal limit block 68, thereby driving the fourth fixed block 69 to slide on the surface of one end of the connecting roller block 67, thereby changing the cutting angle of the blade 610.

[0050] By starting the second motor 51 through the sliding plate 52, the four first sliders 53 are driven to slide stably inside the driving box 2, thereby adjusting the blade 610 connected to the bottom of the sliding plate 52, avoiding the problem of being unable to cut grass of different heights. The structure is simple and the operation is easier, thereby improving the mowing efficiency of the lawn mower.

[0051] By setting the connecting roller 67, the telescopic machine 64 can be controlled to drive the second slider 62 to slide, so that the third fixed block 66 drives the limit block 68 to move, and finally the cutting angle of the blade 610 is changed. Reasonable adjustment of the blade cutting angle can avoid the accumulation or entanglement of grass leaves around the blade, reduce the number of times the machine needs to be stopped for cleaning due to grass leaf blockage, and improve the mowing efficiency of the lawn mower. In conjunction with the height adjustment mechanism 5, the blade 610 can form a cutting trajectory similar to a spiral line when rotating. Compared with vertical cutting, it can cover a larger area, making it easier and simpler to cut grass of different heights, thereby further improving the mowing efficiency of the lawn mower.

[0052] Example 2: Please refer to Figure 1-8 Based on the first embodiment, the present invention provides a technical solution:

[0053] The wheel adjustment mechanism 7 includes a third motor 71, which is fixedly connected to the inside of the base 1. The inside of the third motor 71 is fixedly connected to a fifth fixed block 72 via an output shaft, the top of the fifth fixed block 72 is fixedly connected to a buffer spring 73, and the surface of the fifth fixed block 72 is rotatably connected to a wheel 74.

[0054] The guiding mechanism 8 comprises a fourth motor 81 , which is fixedly connected to the inside of the base 1 . The inside of the fourth motor 81 is rotatably connected to a limited rotation shaft 82 , and the surface of the limited rotation shaft 82 is fixedly connected to a limited groove 83 .

[0055] The limiting groove 83 is slidably connected to the inside of the second guide plate 85 , and the limiting groove 83 is also slidably connected to the inside of the first guide plate 84 . The second guide plate 85 is slidably connected to the inside of the second lead screw 86 , and the surface of the second lead screw 86 is fixedly connected to the third gear 87 .

[0056] The interior of the limiting groove 83 is rotatably connected to a third lead screw 89 , which is meshedly connected to the third gear 87 . The surface of the third lead screw 89 is rotatably connected to a fifth motor 88 , which is fixedly connected to the surface of the limiting groove 83 .

[0057] When in use, the third motor 71 is then started. The start of the third motor 71 drives the fifth fixed block 72 to move up and down through the output shaft, thereby adjusting the height of the wheel 74 to a suitable position. According to the type of grass to be cut, the fourth motor 81 is then started. The start of the fourth motor 81 drives the limit rotation shaft 82 to rotate. The rotation of the limit rotation shaft 82 drives the limit slot 83 to rotate to a suitable position angle. Then the fifth motor 88 is started. The start of the fifth motor 88 drives the third lead screw 89 to rotate. The rotation of the third lead screw 89 drives the third gear 87 meshing therewith to rotate, thereby driving the second guide plate 85 and the first guide plate 84 to move in the opposite direction to move to a suitable position. Then the first motor 41 is started. The start of the first motor 41 drives the first gear 42 to rotate. The rotation of the first gear 42 drives the gear belt 43 to rotate. The rotation of the gear belt 43 drives the second gear 44 to rotate. The rotation of the second gear 44 drives the first rotating shaft 45 to rotate, and finally drives the blade 610 to rotate. Then the worker controls the movement of the cutting machine by pushing the handle 3.

[0058] By setting the fifth fixed block 72 and starting the third motor 71, the fifth fixed block 72 is driven to move up and down, thereby adjusting the height of the wheel 74, avoiding the blade from cutting too deep or too shallow due to undulating terrain, reducing repeated cutting and missed cutting, improving the weeding efficiency, and avoiding blade blockage or poor cutting due to excessively high grass, thereby improving the mowing efficiency of the lawn mower.

[0059] By setting the second lead screw 86 and starting the fifth motor 88, the second lead screw 86 is finally driven to rotate, so that the second guide plate 85 and the first guide plate 84 slide, and the grass is guided to the position of the blade 610 for subsequent cutting, and the grass is prevented from being scattered around the front of the vehicle to ensure that the blade can cut the grass more efficiently, reduce cutting omissions caused by incorrect grass position, and thus improve the overall weeding efficiency. At the same time, it is avoided that the cutting efficiency of the blade is affected by the entanglement of weeds, thereby further improving the mowing efficiency of the lawn mower.

[0060] Example 3: Please refer to Figure 1-8 Based on the first and second embodiments, the present invention provides a technical solution:

[0061] A method for using a lawn mower with a height adjustment structure:

[0062] S1, start the second motor 51, after the second motor 51 is started, it is convenient to adjust the height of the blade 610, and adjust the height of the blade 610 to a suitable height;

[0063] S2, start the telescopic machine 64, and the start of the telescopic machine 64 drives the second slider 62 to slide, thereby adjusting the angle of the blade 610, and adjusting the cutting angle of the blade 610 to a suitable position;

[0064] S3, starting the third motor 71, the starting of the third motor 71 drives the fifth fixing block 72 to move up and down, thereby driving the wheel 74 to move up and down, and adjusting the wheel 74 to a suitable height;

[0065] S4, start the fourth motor 81, the start-up of the fourth motor 81 adjusts the limit slot 83 to rotate, thereby adjusting the angle between the two limit slots 83, and then start the fifth motor 88, the start-up of the fifth motor 88 drives the third lead screw 89 to rotate, and finally drives the second lead screw 86 to rotate, so that the first guide plate 84 and the second guide plate 85 slide inside the limit slot 83, thereby extending the whole thereof;

[0066] S5, start the first motor 41, the start of the first motor 41 drives the first gear 42 to rotate, and the meshing of the gears drives the second gear 44 to rotate, and finally drives the blade 610 to rotate and cut;

[0067] S6: The worker holds the handle 3 and pushes it forward, so that the lawn mower moves forward to cut.

[0068] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lawn mower with a height adjustment structure, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a driving box (2), the surface of the base (1) is fixedly connected to a handle (3), the interior of the driving box (2) is fixedly connected to a height adjustment mechanism (5), the height adjustment mechanism (5) comprises a sliding plate (52), the interior of the sliding plate (52) is fixedly connected to a rotating mechanism (4), the rotating mechanism (4) comprises a first rotating shaft (45), the surface of the first rotating shaft (45) is fixedly connected to an angle adjustment mechanism (6), the interior of the base (1) is fixedly connected to a wheel adjustment mechanism (7), and the interior of the base (1) is also fixedly connected to a guide mechanism (8); The height adjustment mechanism (5) comprises: A first sliding block (53), the first sliding block (53) being slidably connected inside the driving housing (2); A second motor (51), the second motor (51) is fixedly connected inside the driving housing (2), the interior of the second motor (51) is rotatably connected to a first lead screw (54), and the sliding plate (52) is fixedly connected to the surface of the first sliding block (53).

2. A lawn mower with a height adjustment structure according to claim 1, characterized in that: The rotating mechanism (4) further comprises a first motor (41), the first motor (41) being fixedly connected to the top of the driving housing (2), the interior of the first motor (41) being fixedly connected to a first gear (42) via an output shaft, the first gear (42) being meshingly connected to a gear belt (43), the gear belt (43) being meshingly connected to a second gear (44), and the first rotating shaft (45) being fixedly connected to the surface of the second gear (44).

3. A lawn mower with a height adjustment structure according to claim 2, characterized in that: The angle adjustment mechanism (6) comprises a first fixed block (61), the first fixed block (61) being fixedly connected to the surface of the first rotating shaft (45), the surface of the first fixed block (61) being fixedly connected to a second fixed block (65), the surface of the first fixed block (61) being provided with a groove, and the surface of the first fixed block (61) being slidably connected to a limiting slider (63).

4. The lawn mower with a height adjustment structure according to claim 3, characterized in that: The second fixed block (65) is fixedly connected to a telescopic machine (64) inside, the telescopic machine (64) is fixedly connected to a second sliding block (62) inside via an output, the second sliding block (62) is fixedly connected to the surface of the limit sliding block (63), and the second sliding block (62) is slidably connected to the first fixed block (61).

5. The lawn mower with a height adjustment structure according to claim 4, characterized in that: The first fixed block (61) is internally slidably connected to a connecting roller (67), the surface of the second sliding block (62) is fixedly connected to a third fixed block (66), the surface of the connecting roller (67) is slidably connected to a fourth fixed block (69), the surface of the fourth fixed block (69) is fixedly connected to a limiting block (68), and the bottom of the fourth fixed block (69) is fixedly connected to a blade (610).

6. The lawn mower with a height adjustment structure according to claim 5, characterized in that: The wheel adjustment mechanism (7) comprises a third motor (71), the third motor (71) being fixedly connected to the interior of the base (1), the interior of the third motor (71) being fixedly connected to a fifth fixing block (72) via an output shaft, the top of the fifth fixing block (72) being fixedly connected to a buffer spring (73), and the surface of the fifth fixing block (72) being rotatably connected to a wheel (74).

7. The lawn mower with a height adjustment structure according to claim 6, characterized in that: The guiding mechanism (8) comprises a fourth motor (81), the fourth motor (81) being fixedly connected to the interior of the base (1), the interior of the fourth motor (81) being rotatably connected to a limited rotation shaft (82), and the surface of the limited rotation shaft (82) being fixedly connected to a limited groove (83).

8. The lawn mower with a height adjustment structure according to claim 7, characterized in that: A second guide plate (85) is slidably connected inside the limiting groove (83), and a first guide plate (84) is also slidably connected inside the limiting groove (83); a second lead screw (86) is slidably connected inside the second guide plate (85), and a third gear (87) is fixedly connected to the surface of the second lead screw (86).

9. The lawn mower with a height adjustment structure according to claim 8, characterized in that: A third lead screw (89) is rotatably connected inside the limiting groove (83), the third lead screw (89) is meshingly connected to a third gear (87), a fifth motor (88) is rotatably connected to the surface of the third lead screw (89), and the fifth motor (88) is fixedly connected to the surface of the limiting groove (83).

10. A lawn mower with a height adjustment structure and a method of using the lawn mower with a height adjustment structure according to claim 9, characterized in that: S1, starting the second motor (51), after which the second motor (51) is started, so as to facilitate the adjustment of the height of the blade (610), and the height of the blade (610) is adjusted to a suitable height; S2, starting the telescopic machine (64), the starting of the telescopic machine (64) drives the second sliding block (62) to slide, thereby adjusting the angle of the blade (610), and adjusting the cutting angle of the blade (610) to a suitable position; S3, starting the third motor (71), the starting of the third motor (71) drives the fifth fixing block (72) to move up and down, thereby driving the wheel (74) to move up and down, and adjusting the wheel (74) to a suitable height; S4, starting the fourth motor (81), the start-up of the fourth motor (81) adjusts the rotation of the limit slot (83), thereby adjusting the angle between the two limit slots (83), and then starting the fifth motor (88), the start-up of the fifth motor (88) drives the third lead screw (89) to rotate, and finally drives the second lead screw (86) to rotate, so that the first guide plate (84) and the second guide plate (85) slide inside the limit slot (83), thereby extending the entirety thereof; S5, starting the first motor (41), the starting of the first motor (41) drives the first gear (42) to rotate, and the meshing of the gears drives the second gear (44) to rotate, and finally drives the blade (610) to rotate and cut; S6. The worker holds the handle (3) and pushes it forward, causing the lawn mower to move forward for cutting.

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