Improved Mowing Device Applicable to Hilly Grasslands and Its Usage Method

Abstract

The present invention discloses an improved mowing device applicable to hilly grasslands and its usage method, which relates to the technical field of mowing devices. It includes a driving vehicle body and a support beam installed at the front end of the driving vehicle body. A mowing structure for cutting mountain weeds is arranged below the support beam. A linkage assembly is installed at one end of the support beam away from the driving vehicle body. A protection assembly is hinged to the side of the linkage assembly away from the support beam. A lifting assembly for providing the lifting power of the mowing structure is arranged below the support beam. The whole device uses the driving vehicle body to cooperate with the front-end mowing structure, replacing the traditional combination of a tractor and a mower. And with the front-row mowing structure that can be lifted, it can better adapt to the mountain and hilly environment, and can automatically choose whether to raise the mowing structure according to whether there are stones ahead or the road surface rises, and can automatically adjust the initial grass height to be cut.

Description

Technical Field

[0001] The present invention relates to the technical field of mowing devices, and particularly to an improved mowing device applicable to hilly grasslands and its usage method. Background Art

[0002] The hilly and mountainous areas in China account for about 70% of the total national land area. However, for a long time, the development of agricultural mechanization in hilly and mountainous areas has been slow, with a large gap compared with the mechanization in the northern plains. The main factors affecting the development level of mechanization in hilly and mountainous areas include both objective factors (such as poor micro conditions, insufficient agricultural machinery equipment, and difficulties in integrating agricultural machinery and agronomy) and subjective factors (such as a shortage of professional agricultural machinery talents). At present, there are also problems of slow mechanization development in the harvesting machinery for hilly grasslands in southern China.

[0003] China's research on lawn mowers started in the 1960s. At present, the types of lawn mowers in China are the same as those of existing foreign lawn mowers. Generally speaking, most of China's lawn mowers are still in the experimental and demonstration stage. Most of the few lawn mowers that have been put into use are mainly push-type, or have problems such as lack of versatility due to operating environment limitations and short battery life.

[0004] Moreover, there are many hills in southern China. If conventional mechanical lawn mowers are used, it is easy to overturn, and at the same time, the environmental limitations are large, and an effective mowing effect cannot be achieved. While for manual push-type lawn mowers, they are easily stuck and unable to move when encountering large stones, and they cannot adjust their working methods according to the environmental topography. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides an improved mowing device applicable to hilly grasslands and its usage method, which can automatically select whether to raise the mowing structure according to whether there are stones ahead or the road surface rises, and can adjust the initial height of the grassland to be cut by itself.

[0006] To solve the above technical problems, the present invention provides the following technical solution: An improved mowing device applicable to hilly grasslands, including a driving vehicle body, a support beam installed at the front end of the driving vehicle body, a mowing structure for cutting mountain weeds is arranged below the support beam, a linkage assembly is installed at one end of the support beam far from the driving vehicle body, a protection assembly is hinged on the side of the linkage assembly far from the support beam, and a lifting assembly for providing the lifting power of the mowing structure is arranged below the support beam;

[0007] Wherein, the protection assembly is connected to the lifting assembly, and the maximum rising height of the lifting assembly driving the mowing structure is the vertical height of the support beam.

[0008] As a preferred technical solution of the present invention, the lifting assembly includes a positioning plate, on which a plurality of screw rods are threadedly connected, and the top ends of the plurality of screw rods are all installed with threaded knobs;

[0009] The bottom ends of the plurality of screw rods penetrate the positioning plate and are connected to the mowing structure, and the top of the positioning plate is connected to the protection component.

[0010] As a preferred technical solution of the present invention, a limiting slider is installed on the side of the positioning plate, a slide rail is installed on the side of the support beam, and the positioning plate is slidably connected to the slide rail via the limiting slider.

[0011] As a preferred technical solution of the present invention, the protective assembly includes a baffle plate, a second transmission belt and a fixed pulley, the fixed pulley is installed on the support beam, the second transmission belt changes its extension direction through the fixed pulley, one end of the second transmission belt is connected to the baffle plate, and the other end of the second transmission belt is connected to the lifting assembly.

[0012] As a preferred technical solution of the present invention, a plurality of through slots are provided at the bottom of the protection component, and the top ends of the plurality of through slots extend and do not penetrate the top of the baffle plate;

[0013] Wherein, the width of each through groove is centimeters.

[0014] As a preferred technical solution of the present invention, the mowing structure includes a mowing board and a third transmission belt, the mowing board is rotatably connected to three driven wheels, one of which is fixedly connected to a driving motor via a coupling, and the other two driven wheels are equipped with a first rotating rod, and the three driven wheels are mutually connected via a third transmission belt;

[0015] The bottoms of the two first rotating rods penetrate the mowing board and are fixedly connected with a transversely arranged rotating blade, and the two rotating blades are both located inside the mowing board;

[0016] Wherein, the driving motor is fixedly connected to the top of the lifting assembly, and the top ends of the two first rotating rods are rotationally connected to the lifting assembly.

[0017] As a preferred technical solution of the present invention, the mowing board is rotatably connected to two auxiliary wheels, and the vertical height of the bottom of the two auxiliary wheels is slightly higher than the vertical height of the lowest point of the mowing board, and a guide plate is installed on the side of the mowing board.

[0018] As a preferred technical solution of the present invention, the side of the driving vehicle body is rotatably connected to two sweeper assemblies;

[0019] Among them, the leveling component includes a second rotating rod, multiple positioning rings are installed on the second rotating rod, and multiple leveling rods are installed on each positioning ring. The multiple leveling rods are arc-shaped and distributed at the bottom of the positioning ring, and multiple extending and poking rods with different lengths are evenly distributed on each leveling rod.

[0020] As a preferred technical solution of the present invention, the linkage component includes a hinge shaft, the hinge shaft is rotatably connected to the adjacent support beam, the hinge shaft is connected to the grid baffle, and connecting rods are installed on both sides of the hinge shaft. Pulley wheels are installed at the opposite ends of the two connecting rods and on the two second rotating rods. A first transmission belt is connected in transmission between the two pulley wheels on the same side;

[0021] Among them, a torsion spring is installed in the hinge shaft, and the torsion spring is sleeved on the rotating shaft of the hinge shaft. One end of the torsion spring is fixed in the grid baffle, and the other end is fixed in the support beam.

[0022] Compared with the prior art, the beneficial effects that the present invention can achieve are:

[0023] 1. The whole device adopts a driving vehicle body combined with a front-end mowing structure, replacing the traditional combination of a tractor and a mower. And with the front-row mowing structure that can be lifted, it can better adapt to mountain and hilly environments, and can automatically choose whether to raise the mowing structure according to whether there are stones ahead or the road surface rises, and can adjust the initial height of the grassland to be cut by itself.

[0024] 2. While the device automatically adjusts the cutting height, it can also drive the linkage component to rotate through the protection component, and the linkage component drives the two-sided leveling components to move together. It can not only assist in loosening the untrimmed grass surface, but also disperse the cut weeds spit out by the discharge plate, which is convenient for natural air drying and degradation. And it does not require an additional motor drive, and only relies on the force on the grid baffle and the friction between the leveling component itself and the grass surface to operate, with higher work efficiency. Description of the Drawings

[0025] Figure 1 It is a state schematic diagram of the first perspective of the present invention;

[0026] Figure 2 It is a state schematic diagram of the second perspective of the present invention;

[0027] Figure 3 It is a state schematic diagram of the third perspective of the present invention;

[0028] Figure 4 It is a three-dimensional view of the first perspective of the mowing structure in the present invention;

[0029] Figure 5 It is a three-dimensional view of the second perspective of the mowing structure in the present invention;

[0030] Figure 6 Stereogram of the leveling component in the present invention;

[0031] Figure 7 For the present invention Figure 1 Enlarged view of part A in the present invention;

[0032] Figure 8 For the present invention Figure 1 Enlarged view of part B in the present invention.

[0033] Wherein: 1, driving vehicle body; 2, support beam; 21, slide rail; 3, linkage assembly; 31, hinge shaft; 32, connecting rod; 33, pulley; 34, first transmission belt; 4, protection assembly; 41, grid baffle; 42, through groove; 43, second transmission belt; 44, fixed pulley; 5, lifting assembly; 51, positioning plate; 52, limit slider; 53, screw; 54, threaded knob; 6, mowing structure; 61, mowing plate; 62, driving motor; 63, driven wheel; 64, third transmission belt; 65, first rotating rod; 66, auxiliary wheel; 67, export plate; 68, rotary blade; 7, leveling component; 71, second rotating rod; 72, leveling rod; 73, extension lever; 74, positioning ring. Specific embodiments

[0034] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified. The materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0035] Embodiment:

[0036] As Figure 1 - Figure 8 shown, a modified mowing device applicable to hilly grasslands includes a driving vehicle body 1, a support beam 2 installed at the front end of the driving vehicle body 1, a mowing structure 6 for removing mountain weeds is arranged below the support beam 2, a linkage assembly 3 is installed at one end of the support beam 2 away from the driving vehicle body 1, a protection assembly 4 is hinged on one side of the linkage assembly 3 away from the support beam 2, and a lifting assembly 5 for providing the lifting power of the mowing structure 6 is arranged below the support beam 2;

[0037] Among them, the protection assembly 4 is connected to the lifting assembly 5, and the maximum rising height of the lifting assembly 5 driving the mowing structure 6 is the vertical height of the support beam 2.

[0038] In summary, the device is such that at the front end of the driving vehicle body 1, a lifting assembly 5, a mowing structure 6, and a protection assembly 4 are simultaneously installed through a support beam 2. The three structures cooperate with each other. When the protection assembly 4 touches a stone, the thrust is used to pull the lifting assembly 5, and then the mowing structure 6 is pulled. At this time, the linkage assembly 3 is installed on the support beam 2, which plays a role in supporting and keeping the protection assembly 4 in an inclined position all the time.

[0039] Furthermore, the driving vehicle body 1 is a mountain vehicle with wide wheels and relatively thick tires. Using this kind of vehicle can increase the grip of the whole device and climb slopes more efficiently.

[0040] The lifting assembly 5 includes a positioning plate 51. A plurality of screw rods 53 are threadedly connected to the positioning plate 51, and threaded knobs 54 are installed at the tops of the plurality of screw rods 53;

[0041] The bottoms of the plurality of screw rods 53 penetrate through the positioning plate 51 and are connected to the mowing structure 6, and the top of the positioning plate 51 is connected to the protection assembly 4;

[0042] A limiting slider 52 is installed on the side of the positioning plate 51, and a slide rail 21 is installed on the side of the support beam 2. The positioning plate 51 is slidably connected to the slide rail 21 through the limiting slider 52;

[0043] The protection assembly 4 includes a grid baffle 41, a second transmission belt 43, and a fixed pulley 44. The fixed pulley 44 is installed on the support beam 2. The second transmission belt 43 changes the extension direction through the fixed pulley 44. One end of the second transmission belt 43 is connected to the grid baffle 41, and the other end of the second transmission belt 43 is connected to the lifting assembly 5.

[0044] A plurality of through slots 42 are opened at the bottom of the protection assembly 4, and the tops of the plurality of through slots 42 all extend and do not penetrate through the top of the grid baffle 41;

[0045] Among them, the width of each through slot 42 is 6 centimeters.

[0046] In summary, the protective component 4 and the lifting component 5 are further refined, that is, when the stone blocks the baffle plate 41, under the connection of the hinge shaft 31, the baffle plate 41 will rotate counterclockwise, and the second transmission belt 43 will be pulled at this time. Under the direction adjustment of the fixed pulley 44, the second transmission belt 43 is connected with the lifting component 5 and pulls up the lifting component 5. Before the lifting component 5 is pulled up, the threaded knob 54 can be turned to adjust the distance between the mowing structure 6 and the lifting component 5 through the multiple screws 53, that is, the initial position of the height of the mowing structure 6 from the ground can be adjusted according to the use environment and the grass height that needs to be adjusted. When the second transmission belt 43 pulls up the lifting component 5, the limiting slider 52 will rise in the slide rail 21 to ensure the stable sliding of the lifting component 5, and the setting of the through groove 42 can make the baffle plate 41 contact some small stones that do not affect the work of the mowing structure 6.

[0047] Furthermore, a damping block is installed between the sliding part of the limit slider 52 and the slide rail 21. When the damping block is installed, even if the stone escapes from the through slot 42 on the baffle plate 41, under the action of the damping block on the limit slider 52, the lifting assembly 5 will not be reset immediately, but will only slowly descend under the gravity of the mowing structure 6 and the gravity of the lifting assembly 5 itself, so that the mowing structure 6 can be restored to the lowest point to avoid collision after the stone completely passes the vehicle.

[0048] like Figures 6 - 7 As shown, the mowing structure 6 includes a mowing board 61 and a third transmission belt 64. The mowing board 61 is rotatably connected to three driven wheels 63, and one of the driven wheels 63 is fixedly connected to a driving motor 62 via a coupling. The other two driven wheels 63 are installed with a first rotating rod 65. The three driven wheels 63 are mutually transmission-connected via a third transmission belt 64.

[0049] The bottoms of the two first rotating rods 65 penetrate the mowing board 61 and are fixedly connected with a transversely arranged rotating blade 68, and the two rotating blades 68 are both located inside the mowing board 61;

[0050] The driving motor 62 is fixedly connected to the top of the lifting assembly 5 , and the top ends of the two first rotating rods 65 are rotationally connected to the lifting assembly 5 .

[0051] Two auxiliary wheels 66 are rotatably connected to the mowing board 61, and the vertical height of the bottom of the two auxiliary wheels 66 is slightly higher than the vertical height of the lowest point of the mowing board 61. A guide plate 67 is installed on the side of the mowing board 61;

[0052] The side of the driving vehicle body 1 is connected to two sweeping assemblies 7 for rotation;

[0053] Among them, the leveling component 7 includes a second rotating rod 71, on which a plurality of positioning rings 74 are installed, and each positioning ring 74 is installed with a plurality of extension rods 73, which are distributed in an arc shape at the bottom of the positioning ring 74, and each leveling rod 72 is evenly distributed with a plurality of extension rods 73 of different lengths.

[0054] The linkage assembly 3 includes an articulated shaft 31, which is rotatably connected to the adjacent support beam 2, and is connected to the baffle plate 41. Connecting rods 32 are installed on both sides of the articulated shaft 31, and pulleys 33 are installed on the opposite ends of the two connecting rods 32 and the two second rotating rods 71. A first transmission belt 34 is connected between the two pulleys 33 on the same side.

[0055] A torsion spring is installed in the hinge shaft 31 , and the torsion spring is sleeved on the rotating shaft of the hinge shaft 31 . One end of the torsion spring is fixed in the baffle plate 41 , and the other end is fixed in the support beam 2 .

[0056] In summary, the mowing structure 6 is further refined. In the mowing structure 6, the mowing board 61 not only protects the operation of the rotating blade 68, but also supports the first rotating rod 65, that is, the driving motor 62 is further linked through the third transmission belt 64 and a plurality of driven wheels 63, and finally drives the rotating blade 68 to rotate and cut. When grass enters the mowing board 61, after being rotated and cut by the rotating blade 68, the cut grass will be thrown out from the opening of the outlet plate 67 under the action of centrifugal force, and finally a cut grass strip is formed under the forward movement of the driving body 1, and in this process, the auxiliary wheel 66 will assist the driving body 1 to move forward when it is close to the ground, so as to improve the stability of the rotating blade 68 when cutting;

[0057] In the sweeping assembly 7, after being supported by the second rotating rod 71, a plurality of sweeping rods 72 are installed on each positioning ring 74, and finally a fan-shaped sweeping area is formed, and the sweeping area has three uses;

[0058] 1) This structure can push aside the grass strips cut by the mowing structure 6, further disperse moisture, speed up drying, and facilitate storage by staff;

[0059] 2) This structure can smooth the grass on the side of the driving body 1 so as to prevent the grass knot from being strangled on the first rotating rod 65 when turning around to clean the weeds on that side;

[0060] 3) The structure can detect whether there are large stones on the side of the driving vehicle body 1. If there are large stones frequently, it means that the area is a rocky area. In the reverse direction, the linkage component 3 links the protection component 4 to hinge and lift and protect the mowing structure 6.

[0061] In addition, the linkage component 3, the core part of the whole, can not only play the role of positioning the baffle plate 41 for rotation when working, but also can drive the connecting rod 32 to rotate through the hinge shaft 31, and drive the pulley 33 to rotate through the connecting rod 32, and then drive the sweeping component 7 through the first transmission belt 34, so as to drive the sweeping component 7 to sweep back and forth, and the repulsive force generated by the contact between the sweeping component 7 and the grass can also act in the reverse direction on the linkage component 3 to drive the protection component 4.

[0062] Example 2

[0063] An improved mowing method suitable for hilly grasslands comprises the following steps:

[0064] S1, after the protection component 4, linkage component 3, lifting component 5 and mowing structure 6 are installed to the preset position, the surface of the third transmission belt 64 and the first transmission belt 34 are inspected to prevent the structures from being unable to work normally in linkage with each other;

[0065] S2, driving the driving body 1 to move the entire structure to the mountainous area where mowing is required;

[0066] S3, according to the growth of mountain grass, the plurality of threaded knobs 54 are rotated to drive the screw rod 53 to rise or fall, so that the protection component 4 can be adjusted to a suitable grass cutting and trimming operation;

[0067] S4, start the driving motor 62 and move the driving vehicle body 1 forward, the driving motor 62 will drive the two rotating blades 68 to rotate and continuously cut the weeds, and after the weeds are cut, they will flow out linearly on the side of the driving vehicle body 1 through the outlet plate 67, and the staff can collect them in a centralized manner or degrade them naturally later;

[0068] S5, when there is a large stone in front, the stone is stuck in the baffle plate 41, and the baffle plate 41 will be subjected to force to compress the torsion spring, that is, under the action of the hinge shaft 31, it rotates to pull the second transmission belt 43, that is, the mowing structure 6 is pulled up through the lifting component 5. After the stone passes through the through groove 42, the baffle plate 41 is reset under the action of the torsion spring, and at this time, the positioning plate 51 slowly slides and resets under the limit of the limit slider 52 and the slide rail 21, and when the hinge shaft 31 rotates, it will drive the sweeping components 7 on both sides to sweep back and forth through the connecting rod 32, the pulley 33 and the first transmission belt 34, to assist in removing weeds and loosely spread the weeds in S4.

[0069] In summary, the device is operated using this set of methods, which not only makes the overall adjustment and operation relatively simple, but also can effectively adapt to work in mountainous environments.

[0070] In the present invention, unless otherwise clearly stipulated and defined, the first feature being “above” or “below” the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being “below”, “beneath” and “underneath” the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0071] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not restricted by the above-mentioned embodiments. The above-mentioned embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved mowing device applicable to hilly grasslands, comprising a driving vehicle body (1) and a support beam (2) installed at the front end of the driving vehicle body (1), characterized in that, A mowing structure (6) for cutting mountain weeds is arranged below the support beam (2); a linkage assembly (3) is installed at one end of the support beam (2) away from the driving vehicle body (1); a protection assembly (4) is hingedly connected to the side of the linkage assembly (3) away from the support beam (2); and a lifting assembly (5) for providing lifting power for the mowing structure (6) is arranged below the support beam (2); The protection component (4) is connected to the lifting component (5), and the maximum lifting height of the mowing structure (6) driven by the lifting component (5) is the vertical height of the support beam (2); The protection component (4) comprises a baffle plate (41), a second transmission belt (43) and a fixed pulley (44), wherein the fixed pulley (44) is mounted on the support beam (2), the second transmission belt (43) changes its extension direction through the fixed pulley (44), one end of the second transmission belt (43) is connected to the baffle plate (41), and the other end of the second transmission belt (43) is connected to the lifting component (5); A plurality of through slots (42) are formed at the bottom of the protection component (4), and the top ends of the plurality of through slots (42) all extend and do not penetrate the top of the baffle plate (41); Wherein, the width of each through slot (42) is 6 cm; The side of the driving vehicle body (1) is rotatably connected to two sweeping assemblies (7); The sweeping assembly (7) comprises a second rotating rod (71), a plurality of positioning rings (74) are mounted on the second rotating rod (71), and a plurality of sweeping rods (72) are mounted on each positioning ring (74), the plurality of sweeping rods (72) are distributed in an arc shape at the bottom of the positioning ring (74), and a plurality of extension levers (73) of different lengths are evenly distributed on each sweeping rod (72); The linkage assembly (3) comprises a hinge shaft (31), the hinge shaft (31) is rotatably connected to the adjacent support beam (2), the hinge shaft (31) is connected to the baffle plate (41), and connecting rods (32) are installed on both sides of the hinge shaft (31), and pulleys (33) are installed on the opposite ends of the two connecting rods (32) and the two second rotating rods (71), and a first transmission belt (34) is connected between the two pulleys (33) on the same side. Wherein, a torsion spring is installed in the hinge shaft (31), and the torsion spring is sleeved on the rotating shaft of the hinge shaft (31), one end of the torsion spring is fixed in the baffle plate (41), and the other end is fixed in the support beam (2).

2. The improved mowing device applicable to hilly grasslands according to claim 1, wherein, The lifting assembly (5) comprises a positioning plate (51), a plurality of screw rods (53) being threadedly connected to the positioning plate (51), and a threaded knob (54) is installed at the top end of each of the plurality of screw rods (53); The bottom ends of the plurality of screw rods (53) penetrate the positioning plate (51) and are connected to the mowing structure (6); the top of the positioning plate (51) is connected to the protection component (4).

3. The improved mowing device applicable to hilly grasslands according to claim 2, characterized in that: A limiting slider (52) is installed on the side of the positioning plate (51), a slide rail (21) is installed on the side of the support beam (2), and the positioning plate (51) is slidably connected to the slide rail (21) via the limiting slider (52).

4. The improved mowing device applicable to hilly grasslands according to claim 1, characterized in that, The mowing structure (6) comprises a mowing board (61) and a third transmission belt (64); the mowing board (61) is rotatably connected to three driven wheels (63); one of the driven wheels (63) is fixedly connected to a driving motor (62) via a coupling; the other two driven wheels (63) are mounted with a first rotating rod (65); and the three driven wheels (63) are connected to each other in a transmission manner via a third transmission belt (64); The bottoms of the two first rotating rods (65) penetrate the mowing board (61) and are fixedly connected to a transversely arranged rotating blade (68), and the two rotating blades (68) are both located inside the mowing board (61); The driving motor (62) is fixedly connected to the top of the lifting assembly (5), and the top ends of the two first rotating rods (65) are rotatably connected to the lifting assembly (5); The mowing board (61) is rotatably connected to two auxiliary wheels (66), and the vertical height of the bottom of the two auxiliary wheels (66) is slightly higher than the vertical height of the lowest point of the mowing board (61). A guide plate (67) is installed on the side of the mowing board (61).

5. An improved mowing method for the improved mowing device applicable to hilly grasslands according to any one of claims 1-4, characterized in that, The method for using the improved mowing device suitable for hilly grasslands comprises the following steps: S1, after the protection component (4), the linkage component (3), the lifting component (5) and the mowing structure (6) are installed in a preset position, the surface of the third transmission belt (64) and the first transmission belt (34) are inspected to prevent the structures from being unable to work normally in linkage with each other; S2, driving the driving vehicle body (1) to move the entire structure to the mountainous area where mowing is required; S3, according to the growth of mountain grass, rotating multiple threaded knobs (54) to drive the screw rod (53) to rise or fall, so that the protection component (4) can be adjusted to a suitable grass cutting and trimming operation; S4, starting the driving motor (62) and moving the driving vehicle body (1) forward, the driving motor (62) drives the two rotating blades (68) to rotate and continuously cut the weeds, and after the weeds are cut, they will flow out linearly on the side of the driving vehicle body (1) through the outlet plate (67), and the staff can collect them in a centralized manner or degrade them naturally later; S5, when there is a stone in front, the stone is stuck in the baffle plate (41), and the baffle plate (41) is subjected to force to compress the torsion spring, that is, under the action of the hinge shaft (31), the second transmission belt (43) is rotated to pull, that is, the mowing structure (6) is pulled up through the lifting component (5), and after the stone passes through the through groove (42), the baffle plate (41) is reset under the action of the torsion spring, and at this time, the positioning plate (51) slowly slides and resets under the limit of the limit slider (52) and the slide rail (21), and when the hinge shaft (31) rotates, it will drive the sweeping components (7) on both sides to sweep back and forth through the connecting rod (32), the pulley (33) and the first transmission belt (34), so as to assist in removing weeds and loosen and spread the weeds in S4.

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