Gardening mechanical equipment and positioning and cutting method thereof

Abstract

The invention discloses gardening mechanical equipment and a positioning and cutting method thereof, and belongs to the technical field of gardening, the gardening mechanical equipment comprises a power-assisted cart bottom plate, the right side of the top of the power-assisted cart bottom plate is fixedly connected with a first fixed rail, and an inner cavity of the first fixed rail is slidably connected with a long sliding rod. According to the lawn trimming and cutting device, the trimming and cutting device and the linear laser device are finally controlled to ascend and descend through work of the lifting driving assembly, the lawn trimming and cutting height is determined according to linear laser emitted by the linear laser device, the trimming and cutting device can laterally rotate by 90 degrees through the rollover driving assembly, and the lawn trimming and cutting device is driven by the rollover driving assembly in cooperation with the lifting driving assembly. According to the lawn trimmer, the trimming and cutting device laterally rotating by 90 degrees can ascend and descend and is used for trimming wattled walls, the lawn trimming and cutting height can be adjusted at any time through cooperation of an electric control method and linear laser, the cutter head can ascend and descend after the direction is adjusted, the lawn trimmer is suitable for trimming and cutting the wattled walls, and the purpose that one machine has multiple purposes is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of gardening, and in particular relates to gardening mechanical equipment and a positioning and cutting method thereof. Background Art

[0002] Ornamental horticulture focuses on the cultivation and application of ornamental plants, including flowers, ornamental trees, lawns, etc. For example, it grows various flowers for cut flower production such as roses, lilies, carnations, etc., as well as flowers and ornamental trees for garden landscape arrangement, such as peonies, osmanthus, cherry blossoms, etc. It also includes the establishment and maintenance of lawns to create beautiful outdoor spaces.

[0003] Gardening machinery and equipment refers to various professional tools and equipment used for gardening, maintenance, pruning and other work. Gardening machinery and equipment generally have a single function. Lawn mowers can generally only trim and cut the lawn, and the height of the positioning and cutting is generally increased or decreased by a wrench. The height of the wheel is indirectly changed by changing the distance between the blade and the ground. The positioning of the trimming height is mostly based on feeling, and the adjustment is relatively troublesome. Therefore, we designed a gardening machinery and equipment and its positioning and cutting method. The electric control method cooperates with a straight-line laser to adjust the height of the lawn trimming and cutting at any time. The blade can be adjusted in position and raised and lowered, which is suitable for trimming fence walls, realizing multiple uses of one machine. Summary of the invention

[0004] The purpose of the present invention is to provide a gardening machinery and equipment and a positioning and cutting method thereof, which has an electronic control method and cooperates with a straight-line laser to adjust the height of lawn mowing and cutting at any time, and the knife disc can adjust the orientation and rise and fall, which is suitable for the trimming and cutting of fence walls, realizing the advantage of one machine for multiple uses, so as to solve the above-mentioned background technical problems.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: a gardening mechanical equipment comprises a power-assisted cart bottom plate, a fixed rail 1 is fixedly connected to the right side of the top of the power-assisted cart bottom plate, a sliding long rod is slidably connected to the inner cavity of the fixed rail 1, and two symmetrical fixed rails 2 are fixedly connected to the left side of the top of the power-assisted cart bottom plate, and a U-shaped sliding rod is slidably connected to the inner cavity of the two fixed rails 2, an axle rod is fixedly connected between the U-shaped sliding rod and the sliding long rod, a rotating block is rotatably connected to the surface of the axle rod, a U-shaped seat is fixedly connected below the rotating block, a pruning and cutting device is installed below the U-shaped seat, the pruning and cutting device comprises a fixed shell fixedly connected below the U-shaped seat, a rotatable rotating rod is penetrated through the middle of the top of the fixed shell, and the The surface of the rotating rod is rotatably connected to a rotating seat, and three rotatable long rods are arranged through the rotating seat. A motor 1 is fixedly installed in the inner cavity of the U-shaped seat, and the output shaft of the motor 1 is fixedly connected to the rotating rod. A pruning shear disc is fixedly installed at the bottom of the surface of the long rod, and the three pruning shear discs are arranged in an overlapping manner. A laser positioning assembly is arranged on the surface of the fixed shell, and the laser positioning assembly includes two symmetrical mounting frames fixedly connected to the left side of the fixed shell, and a movable I-shaped laser is arranged between the two mounting frames. Two screw rods sliding in the inner cavity of the mounting frame are fixedly connected to the surface of the I-shaped laser, a lifting drive assembly is arranged between the fixed rail 1 and the sliding long rod, and a rollover drive assembly is arranged between the U-shaped seat and the sliding long rod and the U-shaped sliding rod.

[0006] Preferably, the lifting drive assembly includes a threaded rod 1 rotatably connected to the bottom of the inner cavity of the fixed rail 1, the sliding long rod is threadedly connected to the surface of the threaded rod 1, a bevel gear 1 is fixedly installed on the bottom of the surface of the sliding long rod, a motor 2 is fixedly installed on the top of the bottom plate of the power-assisted cart, the output shaft of the motor 2 passes through the inner cavity of the fixed rail 1 and is fixedly installed with a bevel gear 2, and the bevel gear 2 is meshed with the bevel gear 1.

[0007] Preferably, the rollover drive assembly includes a T-shaped plate fixedly connected to the top of the sliding long rod and the U-shaped sliding rod, a connecting seat is fixedly installed on the rear side of the bottom of the T-shaped plate, the inner cavity of the connecting seat is rotatably connected to threaded rod 2, the surface of threaded rod 2 is threadedly connected to a threaded sleeve sliding in the inner cavity of the connecting seat, one side of the threaded sleeve is rotatably connected to two symmetrical diagonal support rods via a rotating shaft, and the end of the diagonal support rod away from the threaded sleeve is rotatably connected to the U-shaped seat via a rotating shaft.

[0008] Preferably, a motor three is fixedly mounted on the bottom of the connecting seat, and an output shaft of the motor three is fixedly connected to the threaded rod two.

[0009] Preferably, the inner cavity of the connecting seat is fixedly connected to two symmetrical slide rails, and the threaded sleeve is slidably connected to the surfaces of the two slide rails.

[0010] Preferably, two symmetrical reinforcement rods are fixedly connected to the top of the bottom plate of the power-assisted stroller, and sliding sleeves that slide on the surfaces of the reinforcement rods are fixedly connected to the bottoms of both sides of the connecting seat.

[0011] Preferably, a gear one is fixedly connected to the surface of the long rod, three gear twos meshing with gear one are fixedly connected to the bottom of the rotating rod surface, and a gear ring is fixedly connected to the inner cavity of the fixed shell, and the gear ring is meshed with three gear ones.

[0012] Preferably, a washer nut is threadedly connected to the surface of the screw rod, and one side of the washer nut rests on the mounting frame.

[0013] Preferably, the top of the bottom plate of the power-assisted stroller is provided with through holes for three pruning blades to pass through.

[0014] A positioning and cutting method for gardening machinery and equipment, the steps are as follows: Step 1: Turn on the inline laser. The inline laser emitted by the inline laser will pass through between the two fixed rails 2 and hit the grass. Then, the motor 2 drives the bevel gear 2 to rotate, and the bevel gear 1 drives the threaded rod 1 to rotate, so that the sliding long rod slides downward in the inner cavity of the fixed rail 1. The sliding long rod drives the shaft rod to move downward. The shaft rod moves downward stably through the cooperation of the U-shaped sliding rod and the fixed rail 2. The shaft rod drives the rotating block, the U-shaped seat and the trimming and cutting device to move downward. The trimming and cutting device drives the inline laser to move downward until the inline laser emitted by the inline laser reaches the required cutting height of the grass. It should be noted that the height of the inline laser emitted by the inline laser is the same as the height of the pruning blade located in the middle. Step 2: At this time, the lifting drive assembly stops working, the motor 1 drives the rotating rod to rotate, the rotating rod drives the gear 2 to rotate, the gear 2 makes the three gears 1 rotate, and then drives the long rod to rotate, the fixed gear ring makes the three gears 1 rotate and move around the gear 2, the three long rods drive the rotating seat to rotate on the surface of the rotating rod, the long rod drives the pruning shear plate to rotate and move, and the power-assisted walking system of the bottom plate of the power-assisted cart is used to push the bottom plate of the power-assisted cart forward with little effort, and the three pruning shear plates rotate and move, and the grass is trimmed and cut at the height positioned by the straight-line laser. The U-shaped seat drives the pruning and cutting device and the rotating block to rotate with the shaft rod as the axis until the pruning shear disc is perpendicular to the wall. The bottom plate of the power trolley is moved according to the in-line laser illuminated by the in-line laser, and the cutting position on the fence wall is located. Then, the stable movement of the bottom plate of the power trolley and the lifting and lowering of the sliding long rod are driven by the lifting and lowering drive assembly, so that the pruning and cutting device in the working state can cut the plants on the fence wall, thereby ensuring the flatness and regularity of the fence wall, and realizing one machine with multiple uses.

[0015] The beneficial effects of the present invention are: 1. The present invention controls the lifting and lowering of the trimming and cutting device and the straight-line laser through the operation of the lifting drive assembly. The height of the lawn trimming and cutting is determined according to the straight-line laser emitted by the straight-line laser. The trimming and cutting device can be turned sideways by 90 degrees through the side-flipping drive assembly. The trimming and cutting device turned sideways by 90 degrees can be lifted and lowered in conjunction with the lifting drive assembly for trimming the fence wall. The height of the lawn trimming and cutting can be adjusted at any time by the electric control method in conjunction with the straight-line laser, and the blade disc can be lifted and lowered after adjusting its position, which is suitable for trimming and cutting the fence wall, thus achieving the purpose of one machine with multiple uses.

[0016] 2. The present invention arranges three overlapping pruning blades, and the three long rods drive the pruning blades to rotate and move in a circular manner, thereby ensuring the movement frequency of the pruning blades. Compared with a fixed pruning blade, the pruning effect is better and the possibility of the pruning blades getting stuck is avoided.

[0017] 3. Through the arrangement of the laser positioning assembly, the present invention can remove the straight-line laser from the mounting frame for inspection and maintenance by operating the spacer nut to be turned off from the surface of the screw rod, and the height and angle of the straight-line laser on the fixed shell can be changed, which is convenient for operation.

[0018] 4. The present invention provides a slide rail so that the threaded sleeve will slide on the surfaces of the two slide rails during the up and down movement, thereby providing a guide for the movement of the threaded sleeve and improving the stability of the up and down movement of the threaded sleeve; 5. The present invention uses a reinforcing rod and a sliding sleeve in combination. When the diagonal support rod supports the U-shaped seat and the trimming and cutting device, the bottom position of the connecting seat will be subjected to a large thrust. The sliding sleeve slides on the surface of the reinforcing rod. On the one hand, it can provide guidance and limit for the lifting and lowering of the connecting seat. On the other hand, it can provide support for the connecting seat, thereby avoiding the possibility of breakage at the connection between the connecting seat and the T-shaped plate and reinforcing the stability of the connecting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or other advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only exemplary and do not limit the present invention, wherein: Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention; Figure 2 It is a three-dimensional schematic diagram of a local structure of an embodiment of the present invention; Figure 3 This is a three-dimensional schematic diagram of a rollover drive assembly and a U-shaped seat according to an embodiment of the present invention; Figure 4 A three-dimensional cross-sectional schematic diagram of a trimming and cutting device according to an embodiment of the present invention; Figure 5 This is a bottom-up stereoscopic schematic diagram of a fixed housing according to an embodiment of the present invention; Figure 6 This is a three-dimensional schematic diagram of the disassembly of the rotating rod and the rotating seat in one embodiment of the present invention; Figure 7 An embodiment of the present invention Figure 4 A partial enlarged view of point A in the middle.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Bottom plate of power push cart, 2. Fixed rail 1, 3. Sliding long rod, 4. Fixed rail 2, 5. U-shaped sliding rod, 6. Axle rod, 7. Rotating block, 8. U-shaped seat, 9. Trimming and cutting device, 91. Fixed shell, 92. Rotating rod, 93. Rotating seat, 94. Long rod, 95. Gear 1, 96. Gear 2, 97. Gear ring, 98. Motor 1, 99. Trimming blade, 10. Laser positioning assembly, 101. Mounting frame, 102. Linear laser Optical device, 103, screw rod, 104, gasket nut, 11, perforation, 12, lifting drive assembly, 121, threaded rod one, 122, bevel gear one, 123, motor two, 124, bevel gear two, 13, rollover drive assembly, 131, T-plate, 132, connecting seat, 133, threaded rod two, 134, threaded sleeve, 135, motor three, 136, diagonal support rod, 137, slide rail, 138, reinforcement rod, 139, sliding sleeve. DETAILED DESCRIPTION

[0021] Hereinafter, embodiments of the gardening machinery and the positioning and cutting method thereof according to the present invention will be described with reference to the accompanying drawings.

[0022] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are illustrative and exemplary, and should not be construed as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0023] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the present invention and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structures of various components of the embodiments of the present invention, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0024] Embodiment 1: Figure 1-7The present invention shows a gardening mechanical device, including a power-assisted cart bottom plate 1, a fixed rail 2 is fixedly connected to the right side of the top of the power-assisted cart bottom plate 1, a sliding long rod 3 is slidably connected to the inner cavity of the fixed rail 2, two symmetrical fixed rails 2 4 are fixedly connected to the left side of the top of the power-assisted cart bottom plate 1, a U-shaped sliding rod 5 is slidably connected to the inner cavity of the two fixed rails 2 4, an axle rod 6 is fixedly connected between the U-shaped sliding rod 5 and the sliding long rod 3, a rotating block 7 is rotatably connected to the surface of the axle rod 6, a U-shaped seat 8 is fixedly connected below the rotating block 7, a pruning and cutting device 9 is installed below the U-shaped seat 8, and the pruning and cutting device 9 includes a fixed shell 91 fixedly connected below the U-shaped seat 8, and the fixed shell A rotatable rotating rod 92 is provided through the middle of the top of 91, and a rotating seat 93 is rotatably connected to the surface of the rotating rod 92. Three rotatable long rods 94 are provided through the rotating seat 93. A gear 95 is fixedly connected to the surface of the long rod 94. Three gears 96 meshing with the gear 95 are fixedly connected to the bottom of the surface of the rotating rod 92. A gear ring 97 is fixedly connected to the inner cavity of the fixed shell 91. The gear ring 97 meshes with the three gears 95. A motor 98 is fixedly installed in the inner cavity of the U-shaped seat 8. The output shaft of the motor 98 is fixedly connected to the rotating rod 92. A trimming shear plate 99 is fixedly installed at the bottom of the surface of the long rod 94. The three trimming shear plates 99 are overlapped and arranged. By setting the three pruning shear discs 99 overlapping, the three long rods 94 drive the pruning shear discs 99 to rotate and move in a circular manner, thereby ensuring the moving frequency of the pruning shear discs 99. Compared with the fixed pruning shear discs 99, the pruning effect will be better, and the possibility of the pruning shear discs 99 getting stuck will be avoided. A through hole 11 is provided on the top of the bottom plate 1 of the power-assisted cart for the three pruning shear discs 99 to pass through. A laser positioning assembly 10 is provided on the surface of the fixed shell 91. The laser positioning assembly 10 includes two symmetrical mounting frames 101 fixedly connected to the left side of the fixed shell 91. A movable inline laser 102 is provided between the two mounting frames 101. Two inline lasers 102 are fixedly connected to the surface of the inline laser 102. A screw rod 103 slides in the inner cavity of the mounting frame 101, and a gasket nut 104 is threadedly connected to the surface of the screw rod 103. One side of the gasket nut 104 rests on the mounting frame 101. Through the setting of the laser positioning component 10, the gasket nut 104 can be operated to rotate off the surface of the screw rod 103, and the straight-line laser 102 can be removed from the mounting frame 101 for inspection and maintenance. In addition, the height and angle of the straight-line laser 102 on the fixed shell 91 can be changed, which is convenient for operation. A lifting drive component 12 is arranged between the fixed rail 2 and the sliding long rod 3, and a rollover drive component 13 is arranged between the U-shaped seat 8 and the sliding long rod 3 and the U-shaped sliding rod 5.

[0025] Embodiment 2: It is basically the same as Embodiment 1, and further, the lifting drive assembly 12 includes a threaded rod 121 rotatably connected to the bottom of the inner cavity of the fixed rail 2, the sliding long rod 3 is threadedly connected to the surface of the threaded rod 121, a bevel gear 122 is fixedly installed on the bottom of the surface of the sliding long rod 3, a motor 123 is fixedly installed on the top of the power-assisted stroller bottom plate 1, the output shaft of the motor 123 passes through the inner cavity of the fixed rail 2 and is fixedly installed with a bevel gear 124, and the bevel gear 124 is meshed with the bevel gear 122.

[0026] Embodiment 3: It is basically the same as Embodiment 1. Furthermore, the rollover drive assembly 13 includes a T-shaped plate 131 fixedly connected to the top of the sliding long rod 3 and the U-shaped sliding rod 5. A connecting seat 132 is fixedly installed on the rear side of the bottom of the T-shaped plate 131. The inner cavity of the connecting seat 132 is rotatably connected to a threaded rod 133. The surface of the threaded rod 133 is threadedly connected to a threaded sleeve 134 that slides in the inner cavity of the connecting seat 132. One side of the threaded sleeve 134 is rotatably connected to two symmetrical diagonal support rods 136 through a rotating shaft. The end of the diagonal support rod 136 away from the threaded sleeve 134 is rotatably connected to the U-shaped seat 8 through a rotating shaft. A motor 3 135 is fixedly installed at the bottom of the connecting seat 132. The output shaft of the motor 3 135 is fixedly connected to the threaded rod 133. The inner cavity of the connecting seat 132 is fixedly connected to two symmetrical slide rails 137. The threaded sleeve 134 is slidably connected to the surfaces of the two slide rails 137. The arrangement of 37, the threaded sleeve 134 will slide on the surfaces of the two slide rails 137 during the up and down movement, providing guidance for the movement of the threaded sleeve 134, thereby improving the stability of the up and down movement of the threaded sleeve 134, and the top of the power-assisted stroller bottom plate 1 is fixedly connected to two symmetrical reinforcement rods 138, and the bottoms on both sides of the connecting seat 132 are fixedly connected to sliding sleeves 139 that slide on the surfaces of the reinforcement rods 138. Through the coordinated use of the reinforcement rods 138 and the sliding sleeves 139, when the diagonal brace rods 136 support the U-shaped seat 8 and the trimming and cutting device 9, the bottom position of the connecting seat 132 will be subjected to a large thrust, and the sliding sleeves 139 slide on the surfaces of the reinforcement rods 138, which can provide guidance and limit for the lifting and lowering of the connecting seat 132, and can provide support for the connecting seat 132, thereby avoiding the possibility of breaking at the connection between the connecting seat 132 and the T-shaped plate 131, thereby strengthening the stability of the connecting seat 132.

[0027] A positioning and cutting method for gardening machinery and equipment, the steps are as follows: Step 1: Turn on the inline laser 102. The inline laser emitted by the inline laser 102 will pass through between the two fixed rails 4 and hit the grass. Then, the motor 123 drives the bevel gear 124 to rotate, and the bevel gear 122 drives the threaded rod 121 to rotate, so that the sliding long rod 3 slides downward in the inner cavity of the fixed rail 2. The sliding long rod 3 drives the shaft rod 6 to move downward. The shaft rod 6 moves downward stably through the cooperation of the U-shaped sliding rod 5 and the fixed rail 4. The shaft rod 6 drives the rotating block 7, the U-shaped seat 8 and the trimming and cutting device 9 to move downward. The trimming and cutting device 9 drives the inline laser 102 to move downward until the inline laser emitted by the inline laser 102 reaches the height required for cutting the grass. It should be noted that the height of the inline laser emitted by the inline laser 102 is the same as the height of the pruning blade 99 located in the middle. Step 2: At this time, the lifting drive assembly 12 stops working, the motor 1 98 works to drive the rotating rod 92 to rotate, the rotating rod 92 drives the gear 2 96 to rotate, the gear 2 96 makes the three gears 1 95 rotate, and then drives the long rod 94 to rotate, the fixed gear ring 97 makes the three gears 1 95 rotate and move around the gear 2 96, the three long rods 94 drive the rotating seat 93 to rotate on the surface of the rotating rod 92, and the long rod 94 drives the pruning shear plate 99 to rotate and move, and the power-assisted walking system of the power-assisted cart bottom plate 1 is used to push the power-assisted cart bottom plate 1 forward with little effort, and the three pruning shear plates 99 rotate and move to trim and cut the grass according to the height positioned by the inline laser 102; Step 3: When the fence needs to be trimmed, the lifting drive assembly 12 is used to drive the sliding rod 3 to move upward, and the sliding rod 3 drives the shaft rod 6, the rotating block 7, the U-shaped seat 8 and the trimming and cutting device 9 to move upward. The sliding rod 3 and the U-shaped sliding rod 5 also drive the rollover drive assembly 13 to move upward until the trimming blade 99 is at a certain height from the bottom plate 1 of the power-assisted cart. Then the motor 3 135 drives the threaded rod 2 133 to rotate, and the threaded sleeve 134 moves downward under the guidance of the slide rail 137, and the threaded sleeve 134 pushes one end of the diagonal support rod 136 to rotate. The other end of the diagonal support rod 136 will push the U-shaped seat 8 to move, and the U-shaped seat 8 will drive the pruning and cutting device 9 and the rotating block 7 to rotate with the shaft rod 6 as the axis until the pruning blade 99 is perpendicular to the wall. The power-assisted cart bottom plate 1 is moved according to the one-line laser illuminated by the one-line laser 102 to locate the cutting position on the fence wall, and then the stable movement of the power-assisted cart bottom plate 1 and the lifting and lowering drive component 12 drive the lifting of the sliding long rod 3, so that the pruning and cutting device 9 in the working state can cut the plants on the fence wall, ensuring the flatness and regularity of the fence wall, and realizing one machine for multiple uses.

[0028] In summary, the gardening machinery and the positioning and cutting method thereof, through the operation of the lifting drive assembly 12, ultimately control the lifting and lowering of the trimming and cutting device 9 and the straight-line laser 102, and determine the height of lawn trimming and cutting according to the straight-line laser emitted by the straight-line laser 102, and the trimming and cutting device 9 can be turned sideways by 90 degrees through the rollover drive assembly 13, and the trimming and cutting device 9 turned sideways by 90 degrees can be lifted and lowered in conjunction with the lifting drive assembly 12, and used for trimming the fence wall, so that the height of lawn trimming and cutting can be adjusted at any time by the electric control method in conjunction with the straight-line laser, and the blade disc can be lifted and lowered after adjusting the orientation, which is suitable for trimming and cutting the fence wall, and realizes the purpose of one machine with multiple uses.

[0029] The technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the invention to achieve the purpose of the invention.

Claims

1. A gardening machine, characterized in that: The invention comprises a power-assisted stroller bottom plate (1), wherein a fixed rail (2) is fixedly connected to the right side of the top of the power-assisted stroller bottom plate (1), a sliding long rod (3) is slidably connected to the inner cavity of the fixed rail (2), two symmetrical fixed rails (4) are fixedly connected to the left side of the top of the power-assisted stroller bottom plate (1), the inner cavities of the two fixed rails (4) are slidably connected to U-shaped sliding rods (5), a shaft rod (6) is fixedly connected between the U-shaped sliding rod (5) and the sliding long rod (3), a rotating block (7) is rotatably connected to the surface of the shaft rod (6), a U-shaped seat (8) is fixedly connected below the rotating block (7), a trimming and cutting device (9) is installed below the U-shaped seat (8), the trimming and cutting device (9) comprises a fixed shell (91) fixedly connected to the bottom of the U-shaped seat (8), a rotatable rotating rod (92) is provided through the middle of the top of the fixed shell (91), a rotating seat (93) is rotatably connected to the surface of the rotating rod (92), and a trimming and cutting device (9) is installed below the U-shaped seat (8), and ... a trimming and cutting device (9) is installed below the U-shaped seat (8), and a trimming and cutting device (9) comprises a fixed shell (91) fixedly connected to the bottom of the U-shaped seat (8), a rotatable rotating rod (92) is provided through the middle of the top of the fixed shell (91), The U-shaped seat (8) is provided with three rotatable long rods (94), the inner cavity of the U-shaped seat (8) is fixedly installed with a motor 1 (98), the output shaft of the motor 1 (98) is fixedly connected to the rotating rod (92), the bottom of the surface of the long rod (94) is fixedly installed with a trimming blade (99), the three trimming blades (99) are arranged in an overlapping manner, and the surface of the fixed shell (91) is provided with a laser positioning component (10), and the laser positioning component (10) includes a fixed connection on the left side of the fixed shell (91) Two symmetrical mounting frames (101), a movable straight-line laser (102) is arranged between the two mounting frames (101), two screw rods (103) sliding in the inner cavity of the mounting frames (101) are fixedly connected to the surface of the straight-line laser (102), a lifting drive assembly (12) is arranged between the fixed rail (2) and the sliding long rod (3), and a rollover drive assembly (13) is arranged between the U-shaped seat (8) and the sliding long rod (3) and the U-shaped sliding rod (5).

2. A gardening machine according to claim 1, characterized in that: The lifting drive assembly (12) comprises a threaded rod (121) rotatably connected to the bottom of the inner cavity of the fixed rail (2); the sliding rod (3) is threadedly connected to the surface of the threaded rod (121); a bevel gear (122) is fixedly installed at the bottom of the surface of the sliding rod (3); a motor (123) is fixedly installed at the top of the power-assisted stroller bottom plate (1); an output shaft of the motor (123) passes through the inner cavity of the fixed rail (2) and is fixedly installed with a bevel gear (124); the bevel gear (124) is meshed with the bevel gear (122).

3. A gardening machine according to claim 2, characterized in that: The rollover drive assembly (13) comprises a T-shaped plate (131) fixedly connected to the top of the sliding long rod (3) and the U-shaped sliding rod (5); a connecting seat (132) is fixedly installed on the rear side of the bottom of the T-shaped plate (131); a second threaded rod (133) is rotatably connected to the inner cavity of the connecting seat (132); a surface of the second threaded rod (133) is threadedly connected to a threaded sleeve (134) that slides in the inner cavity of the connecting seat (132); one side of the threaded sleeve (134) is rotatably connected to two symmetrical diagonal support rods (136) via a rotating shaft; and one end of the diagonal support rod (136) away from the threaded sleeve (134) is rotatably connected to the U-shaped seat (8) via a rotating shaft.

4. A gardening machine according to claim 3, characterized in that: A third motor (135) is fixedly mounted on the bottom of the connecting seat (132), and an output shaft of the third motor (135) is fixedly connected to the second threaded rod (133).

5. A gardening machine according to claim 4, characterized in that: The inner cavity of the connection seat (132) is fixedly connected to two symmetrical slide rails (137), and the threaded sleeve (134) is slidably connected to the surfaces of the two slide rails (137).

6. A gardening machine according to claim 5, characterized in that: Two symmetrical reinforcement rods (138) are fixedly connected to the top of the power-assisted stroller bottom plate (1), and sliding sleeves (139) that slide on the surfaces of the reinforcement rods (138) are fixedly connected to the bottoms of both sides of the connection seat (132).

7. A gardening machine according to claim 6, characterized in that: The surface of the long rod (94) is fixedly connected to a gear one (95), the bottom of the surface of the rotating rod (92) is fixedly connected to three gear twos (96) meshing with the gear one (95), and the inner cavity of the fixed shell (91) is fixedly connected to a gear ring (97), and the gear ring (97) meshes with the three gear ones (95).

8. A gardening machine according to claim 7, characterized in that: A washer nut (104) is threadedly connected to the surface of the screw rod (103), and one side of the washer nut (104) abuts against the mounting frame (101).

9. A gardening machine according to claim 8, characterized in that: The top of the power-assisted stroller bottom plate (1) is provided with a through hole (11) through which three pruning blades (99) pass.

10. A method for positioning and cutting off a gardening machine, applied to the gardening machine according to claim 9, characterized in that: The steps of positioning truncation method are as follows: Step 1: Turn on the inline laser (102). The inline laser emitted by the inline laser (102) passes through the space between the two fixed rails (4) and hits the grass. Then, the motor (123) drives the bevel gear (124) to rotate, and the bevel gear (122) drives the threaded rod (121) to rotate, so that the sliding rod (3) slides downward in the inner cavity of the fixed rail (2). The sliding rod (3) drives the shaft rod (6) to move downward, and the shaft rod (6) is driven by the U The U-shaped sliding rod (5) cooperates with the second fixed rail (4) to stably move downward, the shaft rod (6) drives the rotating block (7), the U-shaped seat (8) and the trimming and cutting device (9) to move downward, and the trimming and cutting device (9) drives the inline laser (102) to move downward until the inline laser light emitted by the inline laser (102) reaches the height required for cutting the grass. It should be noted that the height of the inline laser light emitted by the inline laser (102) is the same as the height of the trimming blade (99) located in the middle; Step 2: At this time, the lifting drive assembly (12) stops working, the motor 1 (98) works to drive the rotating rod (92) to rotate, the rotating rod (92) drives the gear 2 (96) to rotate, the gear 2 (96) causes the three gears 1 (95) to rotate, and then drives the long rod (94) to rotate, the fixed gear ring (97) causes the three gears 1 (95) to rotate and move around the gear 2 (96), the three long rods (94) drive the rotating seat (93) to rotate on the surface of the rotating rod (92), the long rod (94) drives the pruning blade (99) to rotate and move, and the power-assisted walking system of the power-assisted trolley bottom plate (1) is used to push the power-assisted trolley bottom plate (1) forward with little effort, and the three pruning blades (99) rotate and move to trim and cut the grass according to the height positioned by the inline laser (102); Step 3: When the fence wall needs to be trimmed, the lifting drive assembly (12) is used to drive the sliding rod (3) to move upward, and the sliding rod (3) drives the shaft rod (6), the rotating block (7), the U-shaped seat (8) and the trimming and cutting device (9) to move upward. The sliding rod (3) and the U-shaped sliding rod (5) also drive the rollover drive assembly (13) to move upward until the trimming blade (99) is at a certain height from the bottom plate (1) of the power-assisted cart. Then, the motor (135) drives the threaded rod (133) to rotate, and the threaded sleeve (134) moves downward under the guidance of the slide rail (137), and the threaded sleeve (134) pushes the diagonal support rod (136). The U-shaped seat (8) is driven by the one end of the diagonal support rod (136) to move, and the U-shaped seat (8) drives the trimming and cutting device (9) and the rotating block (7) to rotate with the shaft rod (6) as the axis until the trimming blade (99) is perpendicular to the wall. The bottom plate (1) of the power-assisted cart is moved according to the one-line laser lighted by the one-line laser (102) to locate the cutting position on the fence wall. Then, the stable movement of the bottom plate (1) of the power-assisted cart and the lifting and lowering drive assembly (12) drive the sliding long rod (3) to move, so that the trimming and cutting device (9) in the working state cuts the plants on the fence wall, ensuring the flatness and regularity of the fence wall, and realizing a multi-purpose machine.

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