Mowing machine convenient for wide-row close-planting operation in Huai plum orchard and working method of mowing machine

Abstract

The invention relates to a mowing machine convenient for wide-row close-planting Huai plum orchard operation and a working method thereof.The mowing machine comprises a fixed seat fixedly arranged on a cutting machine body, the end of the fixed seat is rotationally connected with a first connecting seat through a rotating assembly, and the first connecting seat is rotationally connected with a rotating arm and connected with a second mounting seat through the rotating arm; two second fixing rods which are rotationally connected to the first connecting base and the second connecting base correspondingly and are parallel to the rotating arm are arranged above the rotating arm, and the two second fixing rods are coaxially connected in a threaded mode through a two-way threaded sleeve. And the two second fixing rods are opposite to the two-way threaded sleeve in the threaded connection direction so that the two second fixing rods can be driven to be close to each other in the opposite direction or away from each other in the back-to-back direction when the two-way threaded sleeve rotates, and the side end of the second mounting base is fixedly connected with a mowing assembly. And the mowing efficiency and the cleanliness are also improved.

Description

Technical Field

[0001] This invention relates to the technical field of lawn mowers, and more particularly to a lawn mower and its working method that is convenient for operation in wide-row, densely planted plum orchards. Background Technology

[0002] A lawnmower is a mechanical tool used to trim lawns, vegetation, etc. Its main function is to efficiently and quickly remove weeds.

[0003] A lawnmower mainly includes a frame, wheels and a walking mechanism mounted on the frame to enable the lawnmower to move, as well as a cutter head and blades mounted on the frame. The cutter head is equipped with a motor to drive the blades to rotate at high speed to cut weeds.

[0004] The existing lawnmower blades have a fixed width, making it difficult to adjust the blade position according to the actual width of the furrows in the nectarine orchard. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a lawn mower and its working method that are convenient for operation in wide-row, densely planted plum orchards. It is not only reasonably structured, but also convenient, stable and has good heat dissipation.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is: a lawn mower that facilitates operation in a wide-row, densely planted plum orchard, comprising a fixed base fixed on the main body of the mower, a first connecting base rotatably connected to the end of the fixed base via a rotating assembly, a rotating arm rotatably connected to the first connecting base and a second mounting base connected via the rotating arm, two second fixed rods respectively rotatably connected to the first connecting base and the second connecting base and both arranged parallel to the rotating arm are provided above the rotating arm, the two second fixed rods are coaxially screwed together by a bidirectional threaded sleeve, the two second fixed rods and the bidirectional threaded sleeve are screwed in opposite directions so that when the bidirectional threaded sleeve rotates, the two second fixed rods are driven to move closer to each other or further away from each other, and a mowing assembly is fixedly connected to the side end of the second mounting base.

[0007] Furthermore, the first connecting seat, the second connecting seat, the two second fixed rods, and the bidirectional threaded sleeve constitute a lifting assembly for adjusting the lifting of the rotating arm. When the rotating arm rotates on the first connecting seat, it drives the second connecting seat to rotate, causing the entire mounting plate to rotate upwards or downwards. After the height of the mounting plate is determined, rotating the bidirectional threaded sleeve drives the two second fixed rods to move closer to each other, which in turn drives the first and second connecting seats to tend to move closer to each other, increasing the friction between the rotating arm and the first and second connecting seats, thereby keeping the rotating arm in a relatively fixed state, and fixing the height position of the mounting plate.

[0008] Furthermore, the rotating assembly includes a vertically extending rotating shaft that rotatably connects the first connecting seat and the fixed seat. A connecting block is fixedly connected to the bottom of the first connecting seat. A waist-shaped groove is longitudinally opened in the connecting block, and a first fixing rod passes through the waist-shaped groove. A longitudinally extending horizontal support rod is fixedly connected to the side of the fixed seat. One end of the first fixing rod is rotatably connected to the horizontal support rod. Nuts are screwed onto the first fixing rods on both sides of the connecting block to abut against the connecting block and limit the rotation of the first connecting seat. The rotating arm drives the mounting plate to rotate along with the rotating shaft, which can adapt to field ridges of different widths. After the rotation position of the mounting plate is determined, the first fixing rod forms a fixed relationship with the connecting block through the first fixing member, so that the rotating shaft no longer rotates and the mounting plate remains in a fixed position.

[0009] Furthermore, the bottom of the main body of the cutter is provided with a chassis, and a cutter blade driven to rotate by a drive component is installed on the chassis for cutting grass at the bottom.

[0010] Furthermore, the mowing assembly includes a connecting plate fixedly connected to the second mounting base. A mounting disc is mounted on the lower part of the connecting plate. A power source is fixedly connected to the connecting plate and is connected to the blade through its drive shaft vertically downward through the mounting disc to drive the blade to rotate. The mounting disc is mounted on a rotating arm. The relative position of the mounting disc and the base is changed by the rotating assembly to adapt to field ridges of different widths.

[0011] Furthermore, the mounting plate is divided into a mounting cavity and an air inlet cavity by a partition. The air inlet cavity has several air inlets along its periphery. When the cutter moves forward, the air inlets face the cutting direction. Since the mounting plate contacts the weeds first, it enhances the suction force on the uncut weeds. A filter screen is installed at each air inlet. The partition has several through holes connecting the air inlet cavity and the mounting cavity. The top of the mounting cavity has several air outlet holes. A protrusion is fixed between adjacent air inlets outside the mounting cavity. The protrusion forms a flow guiding structure to guide the uncut weeds to the air inlet area.

[0012] Furthermore, the upper surface of the mounting plate is inclined downwards in the circumferential direction at its center, and the air outlet is located on the inclined surface, meaning the cross-section of the mounting cavity is trapezoidal, and the air outlet is installed on both sides of the mounting cavity. This inclined surface design helps the airflow to flow more smoothly out of the air outlet, which can enhance the airflow guidance and efficiency, and improve the grass clipping removal or heat dissipation effect.

[0013] Furthermore, guide blocks are installed on the inclined surface of the mounting plate at the air outlets, and each guide block has an air guide hole that communicates with the air outlet. The airflow directions of the air guide hole and the air outlet are different, and the air guide hole is used to guide the airflow along the circumference of the mounting plate. The design of the guide blocks and air guide holes allows the airflow to flow along the circumference of the turntable, which can enhance the coverage and uniformity of the airflow and facilitate the movement of weeds along the circumference of the mounting plate to the discharge trough for discharge.

[0014] Furthermore, the drive shaft within the mounting cavity is equipped with fan blades that rotate and blow air upwards; a weed-blocking ring is coaxially rotatably connected to the top of the mounting plate, and the weed-blocking ring has a discharge groove. The design of the weed-blocking ring provides a temporary space for collecting weeds, helping to reduce the splashing and scattering of weeds during mowing. The discharge groove directionally guides the direction of weed accumulation, facilitating the cleaning and discharge of weeds. Weeds are discharged in an orderly manner through the discharge groove. The rotatable weed-blocking ring can adapt to different scattering directions, and the angle of the weed-blocking ring can be adjusted to orient the discharge groove toward the designated weed collection area.

[0015] Furthermore, an arc-shaped sealing plate is slidably installed on the inner wall of the air inlet cavity near the air inlet. The bottom end of the sealing plate is fixedly connected to a rotating ring, which is coaxially rotatably connected inside the air inlet cavity. A lever is fixedly connected to the bottom of the rotating ring below the sealing plate. The lever extends downward through the air inlet cavity, and an arc-shaped travel groove is provided at the bottom of the air inlet cavity to allow the lever to slide and move the sealing plate. The air intake volume is controlled by the opening of the sealing plate, thus achieving adjustable air intake volume and adjustable suction for weeds. When the horizontal rotation angle of the mounting plate is small, adapting to a narrower field ridge width, the sealing plate controls the air intake volume to decrease, thereby increasing the suction for weeds. The position of the sealing plate can be easily adjusted by operating the rotating ring and the lever, thereby controlling the size of the air inlet and improving the convenience of operation.

[0016] Furthermore, a shock-absorbing spring is also attached between the first mounting base and the second mounting base, and both the first mounting base and the second mounting base are provided with a number of vertically spaced hanging holes for attaching the shock-absorbing spring.

[0017] Furthermore, both the second mounting base and the first mounting base are fixed with two sets of round rods that are parallel to each other vertically, and these round rods are rotatably connected to the rotating arm and the second fixed rod, respectively.

[0018] Furthermore, a control rod for facilitating rotation is fixed in the middle of the bidirectional threaded sleeve. Furthermore, the position difference between the mounting plate and the chassis can be adjusted through the linkage adjustment of the rotating arm and the lifting assembly, adapting to different widths of field ridges (horizontal + longitudinal bidirectional adjustment). The power source drives the fan blades to form an airflow circulation (air inlet → through hole → mounting cavity → air outlet). The airflow from the air outlet can provide forced air cooling for the power source and can also sweep away the grass clippings generated during cutting, achieving a dual function: because the mounting plate first approaches the weeds, the outer periphery of the mounting plate pushes the weeds forward, and the portion of the weeds below the mounting plate is tilted and approaches the blades, thus being cut by the blades. The air inlet facing the cutting direction also has suction on the uncut weeds, reducing the spread of weeds around the mounting plate. Uncut weeds are better kept vertical and cut by the blades. During use, the horizontal angle of the mounting plate is first adjusted by the rotating assembly, and then the vertical height of the mounting plate is adjusted by the lifting assembly. The power source simultaneously drives the blades and fan blades to rotate, achieving cutting and synchronous heat dissipation / chip removal.

[0019] A method for operating a lawnmower that facilitates wide-row, densely planted plum orchards is described, comprising the following steps: First, the horizontal angle of the mounting plate is adjusted by the rotating component to accommodate the width of the plum orchard ridges; then, the vertical height of the mounting plate is adjusted by the lifting component to ensure that the blades maintain a suitable cutting position with the ground; after the power source is started, the blades and fan blades are driven to rotate simultaneously, achieving cutting operations while simultaneously attracting uncut weeds through airflow circulation, dissipating heat from the power source, and blowing away the generated grass clippings.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. By adjusting the rotating arm, rotating components and lifting components in a coordinated manner, the relative position of the mounting plate and the chassis can be changed, thus adapting to different widths of field ridges and different heights of weeds. This two-way adjustment function in both the horizontal and vertical directions enables the lawnmower to operate efficiently under various terrain conditions, improving the adaptability and flexibility of the equipment. 2. The power source drives the fan blades to form an airflow circulation. Through the design of the air inlet, mounting cavity and air outlet, not only is forced air cooling of the power source achieved, but the airflow also blows away the grass clippings produced by the blades, reducing the accumulation of weeds on the machine. In addition, the design of the air inlet facing the cutting direction enhances the suction of uncut weeds, allowing the weeds to be better kept vertical and cut by the blades, further improving mowing efficiency and cleanliness.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1This is a schematic diagram illustrating the structure of the bottom of the cutting body in an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 3 This is a schematic diagram of the overall structure of the rotating component in an embodiment of the present invention; Figure 4 This is a schematic diagram of the overall structure of the lifting assembly in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the lifting assembly and the rotating assembly working together to drive the rotating arm to move in an embodiment of the present invention; Figure 6 This is a schematic diagram of the turntable structure in an embodiment of the present invention; Figure 7 This is a schematic diagram of the internal structure of the turntable in an embodiment of the present invention; Figure 8 This is a schematic diagram of the bottom structure of the turntable in an embodiment of the present invention; Figure 9 This is a schematic diagram of the distribution of guide blocks in an embodiment of the present invention.

[0023] In the diagram: 10. Cutting machine body; 20. Chassis; 21. Cutting blade; 30. Rotating arm; 40. Rotating assembly; 41. Rotating shaft; 42. Fixed seat; 421. Horizontal support rod; 43. Connecting block; 431. Waist-shaped groove; 44. First fixed rod; 45. Nut; 50. Lifting assembly; 51. First connecting seat; 52. Second connecting seat; 53. Bidirectional threaded sleeve; 531. Control rod; 54. Second fixed rod; 55. Round rod; 56. Shock-absorbing spring; 60. Mounting plate; 601. Connecting plate; 602, First guide rod; 603, Second guide rod; 604, Arc groove; 61, Mounting cavity; 611, Drive shaft; 62, Air inlet; 63, Filter screen; 64, Air outlet; 65, Partition plate; 66, Through hole; 67, Protrusion; 68, Stroke groove; 69, Air inlet cavity; 70, Blade; 80, Power source; 90, Fan blade; 100, Sealing plate; 110, Rotary ring; 120, Toggle lever; 200, Weed-blocking ring; 210, Discharge groove; 300, Guide block; 310, Air guide hole. Detailed Implementation

[0024] To make the above-mentioned features and advantages of the present invention more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings. The aim is to achieve flexible adjustment of the mowing width through structural innovation, and to optimize heat dissipation and grass clipping handling during the mowing process in the Nai Li orchard. The specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] like Figure 1As shown, a mower suitable for wide-row, densely planted plum orchards includes a main body 10, a chassis 20, and a cutter 21. The main body 10 serves as the frame of the overall structure. The chassis 20 is mounted on the bottom of the main body 10. The chassis 20 is equipped with the cutter 21 and a motor for driving the cutter 21 to rotate. An electric telescopic rod for adjusting the height of the chassis 20 is also installed inside the main body 10. The rotation of the cutter 21 on the chassis 20 and the height adjustment of the cutter 21 are existing technologies and will not be described in detail in this application.

[0026] Reference Figure 2 and Figure 3 A lawnmower designed for wide-row, densely planted plum orchards also includes key components such as a rotating arm 30, a rotating assembly 40, a lifting assembly 50, a mounting plate 60, blades 70, and a power source 80. The rotating arm 30 is rotatably mounted on the main body 10 of the mower. The rotating assembly 40 controls the rotation angle of the rotating arm 30 to accommodate different widths of furrows, while the lifting assembly 50 adjusts the height of the rotating arm 30 to accommodate weeds of varying heights.

[0027] In this embodiment of the invention, the rotating assembly 40 is a key component for adjusting the angle of the rotating arm 30. The rotating assembly 40 mainly includes a fixed base 42 and a rotating shaft 41 rotatably mounted on the fixed base 42. The fixed base 42 is fixedly mounted on the outer shell of the cutting machine body 10. The rotating arm 30 is mounted on the rotating shaft 41 and rotates along with the rotation of the rotating shaft 41. The rotating assembly 40 also includes a connecting block 43 and a first fixing rod 44. The connecting block 43 is fixedly mounted on the rotating shaft 41. One end of the first fixing rod 44 is rotatably mounted on the horizontal support of the fixed base 42, and the other end of the first fixing rod 44 passes through the connecting block 43. A first fixing member for fixing the first fixing rod 44 is provided between the connecting block 43 and the first fixing rod 44. Since the rotating shaft 41 rotates around its own central axis as the center of rotation, the connecting block 43 rotates accordingly. One end of the first fixing rod 44 is rotatably mounted on the fixed base 42, and the first fixing rod 44 can rotate adaptively according to the rotation of the connecting block 43. The rotation center line of the first fixing rod 44 is parallel to the rotation center line of the rotating shaft 41. Therefore, the connecting block 43 has a waist-shaped groove 431 to provide the first fixing rod 44 with room to move. The first fixing member includes two nuts 45, which are threaded onto the first fixing rod 44. After the first fixing rod 44 passes through the waist-shaped groove and the position of the connecting block 43 is determined, the two nuts 45 abut against the opposite side walls of the connecting block 43, so that the rotating shaft 41 is fixed on the fixing seat 42 after the rotation position is adjusted.

[0028] Reference Figure 4 and Figure 5The lifting assembly 50 is used to adjust the height of the rotating arm 30 to adapt to different ground heights or mowing needs. Specifically, the lifting assembly 50 includes a first connecting seat 51, a second connecting seat 52, a bidirectional threaded sleeve 53, and two second fixed rods 54. The upper and lower ends of the rotating shaft 41 are fixedly connected to the first connecting seat 51, and the first connecting seat 51 rotates with the rotating shaft 41. A connecting plate 601 is fixedly installed on the mounting plate 60, and the second connecting seat 52 is connected to the connecting plate 601. Two round rods 55 are fixedly installed on both the first connecting seat 51 and the second connecting seat 52, and the two round rods 55 on the same connecting seat are parallel to each other. The two ends of the rotating arm 30 are rotatably mounted on a round rod 55 of the first connecting seat 51 and the second connecting seat 52, respectively. When the rotating arm 30 rotates with respect to the round rod 55 of the first connecting seat 51, it can drive the second connecting seat 52 to rotate, and the second connecting seat 52 rotates the mounting plate 60 upwards or downwards.

[0029] To maintain a certain rotation angle, one end of each of the two second fixed rods 54 is rotatably mounted on another round rod 55 of the first connecting seat 51 and the second connecting seat 52, respectively. A bidirectional threaded sleeve 53 is threadedly connected to one second fixed rod 54 in a forward direction and to the other second fixed rod 54 in a reverse direction. A control rod 531 is inserted into the bidirectional threaded sleeve 53, and rotating the control rod 531 causes the bidirectional threaded sleeve 53 to control the two second fixed rods 54 to tend to move closer or further apart. When the two second fixed rods 54 tend to move closer, they pull the first connecting seat 51 and the second connecting seat 52 closer together, and both ends of the rotating arm 30 abut against the round rod 55, thus fixing the rotating arm 30 to the first connecting seat 51 and the second connecting seat 52. When the two second fixed rods 54 tend to move further apart, the friction between the rotating arm 30 and the round rod 55 is reduced, allowing the rotating arm 30 to move the mounting plate upwards or downwards. (Refer to...) Figure 1 and Figure 4 The mounting plate 60 is fixed to the rotating arm 30, and the blade 70 is mounted below it. The power source 80, which is a servo motor, is mounted on the mounting plate 60 and is connected to a power cord. The main body 10 of the cutter has a battery, and the power cord is connected to the battery. The blade 70 is fixedly mounted on the outer wall of the output shaft of the servo motor, so that the servo motor can drive the blade 70 to rotate and cut grass.

[0030] Reference Figure 3 A damping spring 56, which is a compression spring, is connected between the first connecting seat 51 and the second connecting seat 52. Both the first connecting seat 51 and the second connecting seat 52 have multiple hanging holes for the damping spring 56 to be attached, facilitating the adjustment of its elastic range. When the second connecting seat 52 receives vibrations generated by the servo motor, the damping spring 56 acts as a buffer, reducing the vibrations received by the first connecting seat 51.

[0031] Reference Figure 4 and Figure 5 More specifically, a first guide rod 602 and a second guide rod 603 are connected to the connecting plate 601. The first guide rod 602 is fixedly installed on the connecting plate 601, and the second guide rod 603 is slidably installed on the connecting plate 601 with the first guide rod 602 as its rotation center. An arc-shaped groove 604 is provided on the connecting plate 601 to control the stroke of the second guide rod 603. The first guide rod 602 and the second connecting seat 52 are rotatably connected, and the second guide rod 603 and the second connecting seat 52 are fixedly connected. The entire mounting plate 60 can rotate according to the relative rotation of the first guide rod 602 and the second connecting seat 52. In actual operation, the second connecting seat 52 is generally stationary, and the connecting plate 601 rotates with the mounting plate 60 with the first guide rod 602 as its rotation center. After rotation and positioning, the second guide rod 603 is threadedly connected to a nut 45, which fixes the second guide rod 603 to the connecting plate 601. By adjusting the angle of the mounting plate 60, the blade 70 of the mounting plate 60 can also be used to cut weeds at an angle.

[0032] Reference Figure 6 and Figure 7 The mounting plate 60 has a mounting cavity 61, and an air inlet 62 is provided on the side wall of the mounting plate 60. A filter screen 63 is installed at the air inlet 62 to prevent weeds and debris from entering the mounting cavity 61. An air outlet 64 is provided on the upper surface of the mounting plate 60. A partition 65 is installed in the mounting cavity 61, and a through hole 66 is provided in the partition 65. A fan blade 90 is installed in the mounting cavity 61, and the fan blade 90 is located above the partition 65. The output shaft of the servo motor is also connected to the fan blade 90 for transmission. The fan blade 90 is evenly spaced along the circumference of the output shaft, and the fan blade 90 forms an airflow circulation when it rotates. The airflow passes through the air inlet 62 and the through hole 66 in sequence before entering the mounting cavity 61. After being driven by the fan blade 90, it is discharged from the air outlet 64, which not only achieves forced air cooling of the power source 80, but also helps to blow away the grass debris produced by the blade 70.

[0033] Reference Figure 2 , Figure 6 and Figure 7 When cutting weeds, the mounting plate 60 first approaches the weeds, and the outer periphery of the mounting plate 60 pushes the weeds forward. The weed segments from the root to the bottom of the mounting plate 60 are inclined and approach the blade 70, thus being cut by the blade 70. The air inlet 62 is specially designed on the peripheral wall of the mounting plate 60 near the main body 10 of the cutter, and faces the cutting direction of the lawnmower. It enhances the suction of uncut weeds through airflow, reduces the diffusion of weeds around the mounting plate 60, keeps the weeds in an upright position, and facilitates concentrated cutting of weeds.

[0034] Reference Figure 6The mounting plate 60 has protrusions 67 partially installed on its outer periphery. Multiple protrusions 67 are distributed at intervals along the outer periphery of the mounting plate 60, and there is an air inlet 62 between two adjacent protrusions 67. The two protrusions 67 form a guide channel, guiding the unchopped weeds close to the air inlet 62, which has a gathering effect on the unchopped weeds.

[0035] Reference Figure 7 and Figure 8 To further control the air intake, a sealing plate 100 is slidably installed on the inner wall of the mounting plate 60. The sealing plate 100 rotates around the central axis of the mounting plate 60. By adjusting the opening of the sealing plate 100, the size of the air inlet 62 can be controlled to adapt to the operational needs of different field ridge widths. A rotating ring 110 is connected to the sealing plate 100. The rotating ring 110 is coaxially arranged with the mounting plate 60 and is connected to a lever 120. A stroke groove 68 is opened at the bottom of the mounting plate 60. One end of the lever 120 extends out of the mounting plate 60 for easy manual adjustment by the operator. The rotating ring 110 blocks the stroke groove 68 for the rotation of the lever 120 when the position of the lever 120 changes.

[0036] Reference Figure 7 The upper surface of the mounting plate 60 is inclined downward in the circumferential direction at the middle position, and the air outlet 64 is located on this inclined surface. This design helps the airflow to flow out of the air outlet 64 more smoothly, improving the airflow guidance and efficiency.

[0037] In addition, refer to Figure 7 and Figure 9 A weed-blocking ring 200 is rotatably mounted on the upper surface of the mounting plate 60. The weed-blocking ring 200 and the upper surface of the mounting plate 60 form a temporary space for collecting weeds. The weed-blocking ring 200 has a discharge groove 210. The vibration generated by the rotation of the servo motor also has a shaking effect on the weeds, causing them to be discharged from the discharge groove 210. During the shaking process of the mounting plate 60, the weeds have a shock-absorbing effect on the entire mounting plate 60. The rotatable weed-blocking ring 200 can change the position of the discharge groove 210 to meet the need for the weeds to be scattered to a designated location.

[0038] To further enhance the airflow guidance effect, a guide block 300 is also installed on the inclined upper surface of the mounting plate 60. The guide block 300 has an air guide hole 310, which communicates with the air outlet 64. The airflow directions of the air guide hole 310 and the air outlet 64 are different. The design of the air guide hole 310 allows the airflow to flow circumferentially along the mounting plate 60, enhancing the coverage and uniformity of the airflow. This helps to push weeds along the circumference of the mounting plate 60 to the discharge trough 210 for discharge, further improving the operating efficiency and cleanliness of the lawnmower.

[0039] The mounting plate 60 can be installed on both the left and right sides as needed. The rotating component 40 and the lifting component 50 are set according to the number of mounting plates 60.

[0040] The implementation principle of a lawnmower that facilitates operation in a wide-row, densely planted plum orchard according to an embodiment of the present invention is as follows: In actual operation, the operator first adjusts the horizontal angle of the mounting plate 60 using the rotating component 40 to adapt to the width of the plum orchard ridges. Then, the operator adjusts the vertical height of the mounting plate 60 using the lifting component 50 to ensure the blade 70 maintains a suitable cutting position with the ground. After the power source 80 is started, it simultaneously drives the blade 70 and the fan blade 90 to rotate, achieving cutting while simultaneously attracting uncut weeds through airflow circulation, cooling the power source 80, and blowing away any generated grass clippings. As needed, the operator can also adjust the opening of the sealing plate 100 using the lever 120 to control the air intake volume to adapt to different operating environments.

[0041] This invention is not limited to the preferred embodiment described above. Anyone inspired by this invention can derive various other forms of lawnmowers and their operating methods that facilitate operation in densely planted plum orchards. All equivalent variations and modifications made within the scope of this invention's claims should be considered within the scope of this invention.

Claims

1. A lawnmower for easy operation in densely planted plum orchards, characterized in that: The device includes a fixed base fixed to the main body of the cutter. The end of the fixed base is rotatably connected to a first connecting base via a rotating assembly. A rotating arm is rotatably connected to the first connecting base and a second mounting base is connected to the rotating arm. Two second fixed rods are respectively rotatably connected to the first connecting base and the second connecting base and are parallel to the rotating arm. The two second fixed rods are coaxially screwed together by a bidirectional threaded sleeve. The two second fixed rods are screwed in opposite directions to the bidirectional threaded sleeve so that when the bidirectional threaded sleeve rotates, the two second fixed rods are driven to move closer to each other or further away from each other. A grass-cutting assembly is fixedly connected to the side end of the second mounting base.

2. The lawnmower according to claim 1, which is convenient for operation in wide-row, densely planted plum orchards, is characterized in that: The rotating assembly includes a vertically extending rotating shaft for rotatably connecting the first connecting seat and the fixed seat. A connecting block is fixedly connected to the bottom of the first connecting seat. A waist-shaped groove is longitudinally opened in the connecting block. A first fixing rod is inserted in the waist-shaped groove. A longitudinally extending horizontal support rod is fixedly connected to the side of the fixed seat. One end of the first fixing rod is rotatably connected to the horizontal support rod. Nuts are screwed onto the first fixing rods on both sides of the connecting block to abut against the connecting block and limit the rotation of the first connecting seat.

3. The lawnmower according to claim 1, which is convenient for operation in wide-row, densely planted plum orchards, is characterized in that: The mowing assembly includes a connecting plate fixedly connected to a second mounting base. A mounting plate is mounted on the lower part of the connecting plate. A power source is fixedly connected to the connecting plate and is connected to the blade through its drive shaft vertically downward through the mounting plate to drive the blade to rotate.

4. The lawnmower according to claim 3, which is convenient for operation in wide-row, densely planted plum orchards, is characterized in that: The mounting plate is divided into a mounting cavity and an air inlet cavity by a partition. The air inlet cavity has several air inlets along its periphery, and each air inlet is equipped with a filter screen. The partition has several through holes connecting the air inlet cavity and the mounting cavity. The top of the mounting cavity has several air outlet holes. The mounting cavity is fixed with protrusions between adjacent air inlets.

5. A lawnmower for easy operation in a wide-row, densely planted plum orchard according to claim 4, characterized in that: The drive shaft inside the mounting cavity is equipped with fan blades that rotate and blow air upwards; a weed-blocking ring is coaxially rotatably connected to the top of the mounting plate, and a discharge groove is provided on the weed-blocking ring.

6. The lawnmower according to claim 4, which is convenient for operation in wide-row, densely planted plum orchards, is characterized in that: An arc-shaped sealing plate is slidably installed on the inner wall of the air inlet cavity near the air inlet. The bottom end of the sealing plate is fixed to a rotating ring, which is coaxially rotatably connected to the air inlet cavity. A lever is fixedly connected to the bottom of the rotating ring below the sealing plate. The lever extends downward through the air inlet cavity, and an arc-shaped travel groove is provided at the bottom of the air inlet cavity to allow the lever to slide and move the sealing plate.

7. A lawnmower for easy operation in a wide-row, densely planted plum orchard according to claim 1, characterized in that: A shock-absorbing spring is also attached between the first mounting base and the second mounting base. Both the first mounting base and the second mounting base are provided with a number of vertically spaced hanging holes for attaching the shock-absorbing spring.

8. A lawnmower for easy operation in a wide-row, densely planted plum orchard according to claim 1, characterized in that: Both the second mounting base and the first mounting base have two sets of round rods fixedly mounted vertically in parallel, and these round rods are rotatably connected to the rotating arm and the second fixed rod, respectively.

9. A lawnmower for easy operation in a wide-row, densely planted plum orchard according to claim 1, characterized in that: The bidirectional threaded sleeve has a control rod fixed in the middle to facilitate rotation.

10. A method for operating a lawnmower that facilitates operation in densely planted plum orchards with wide rows, characterized in that... The following steps are performed using a mower as described in any one of claims 1-9 that facilitates operation in wide-row, densely planted plum orchards: First, the horizontal angle offset of the mounting plate is adjusted by the rotating component to adapt to the width of the plum orchard ridges; then, the vertical height of the mounting plate is adjusted by the lifting component to ensure that the blades maintain a suitable cutting position with the ground; after the power source is started, the blades and fan blades are driven to rotate simultaneously, achieving the cutting operation while simultaneously attracting uncut weeds through airflow circulation, dissipating heat from the power source, and blowing away the generated grass clippings.

Images