A large tree branch and foliage pruning apparatus and method

Abstract

The application discloses a large arbor branch and leaf pruning device and method, relates to the technical field of arbor seedling cultivation, and comprises a moving box, a treatment chamber is arranged in the moving box, and a feeding port is arranged on one side of the moving box. The large arbor branch and leaf pruning device and method utilize a third motor to drive a first bevel gear to rotate forward and reverse, drive two cutters to fold and separate through the meshing transmission between the first bevel gear and two second bevel gears, and do not need manpower to pull to prune branches and leaves, so that the hand fatigue of workers is reduced; in addition, through the cooperation of an outer pipe, an inner pipe and a handle sleeve, a worker can stand and hold the handle sleeve to prune the branches and leaves of arbor seedlings, and does not need to bend over to operate; in addition, the overall length of the pruning mechanism is adjusted, so that the arbor of different heights can be used by workers of different heights.

Description

Technical Field

[0001] This invention relates to the field of tree seedling cultivation technology, specifically to a device and method for pruning branches and leaves of large trees. Background Technology

[0002] Large trees are a general term for woody plants with a distinct upright trunk, typically exceeding 25 meters in height or a crown area exceeding 30 square meters (or 15 meters in height and 25 square meters in crown area). They belong to the tall type of trees and can be further subdivided into deciduous, evergreen, and semi-deciduous categories. Their trunks are straight and their crowns are broad. For example, the tulip tree (Liriodendron tulipifera), a deciduous large tree, can reach a height of 40 meters when mature, with a conical crown and symmetrical branching. These plants are widely distributed in forests and urban green spaces, improving the local environment by providing shade through their spreading branches and leaves. To meet usage requirements, tree seedlings are cultivated. During the cultivation of tree seedlings, pruning is necessary to remove diseased, weak, dead, crossing, and competing branches, preserve the dominance of the main trunk, and prevent competition among multiple main trunks. Currently, most pruning is done manually with hand-held shears. Since the saplings are relatively short, workers need to squat down to prune them. Maintaining a squatting posture for a long time can easily affect the health of the workers. At the same time, it is not convenient to handle the pruned branches and leaves, so as to avoid attracting germs and pests that could damage the saplings. Manual cleaning is not very convenient. Therefore, we propose a pruning equipment and method for large trees. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a device and method for pruning branches and leaves of large trees, solving the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a large tree branch and leaf pruning device, comprising a mobile box, the interior of which is provided with a processing chamber, a feed inlet on one side of the mobile box, a receiving mechanism for conveying and receiving branches and leaves on one side of the mobile box, a stabilizing mechanism for fixing the mobile box on the other side of the mobile box, a shredding mechanism on the mobile box, a rubber bracket fixedly connected to the end of the mobile box, a pruning mechanism for processing branches and leaves on the rubber bracket, two support shafts fixedly connected to the two sides of the bottom of the mobile box, and four wheels rotatably connected to the outer sides of the four support shafts via bearings, and a storage mechanism for collecting branch and leaf debris on the mobile box.

[0005] Optionally, the trimming mechanism includes an outer tube fitted onto a rubber bracket, a handle sleeve fixedly fitted to the top of the outer tube, an inner tube movably fitted to the inner side of the bottom of the outer tube, a deformation groove provided at the bottom of the outer tube, a locking buckle fitted at the bottom of the outer tube, a mounting box fixedly connected to the bottom of the inner tube, a transmission box fixedly connected to the bottom of the mounting box, a movable groove provided on the bottom surface of the transmission box, transmission shafts rotatably connected to both sides of the inner cavity of the transmission box via bearings, second bevel gears fixedly fitted to the outer sides of the two transmission shafts, a third motor fixedly installed in the inner cavity of the mounting box, and the output shaft of the third motor extending to the transmission box. The inner cavity is fixedly fitted with a first bevel gear, which meshes with two second bevel gears. The ends of the two drive shafts are fixedly fitted with cutters, and the ends of the two cutters extend through the movable groove to the outside of the transmission box. The sides of the two cutters are fixedly connected with connecting plates, and rubber blocks are fixedly connected to the connecting plates. The top of the grip sleeve is fixedly connected with a hand strap, and a control button is fixedly installed on the side of the grip sleeve. The inner cavity of the grip sleeve is provided with an auxiliary power supply, and the top of the inner cavity of the outer tube is provided with a circuit board. The circuit board, auxiliary power supply, third motor, and control button are electrically connected by wires.

[0006] Optionally, the receiving mechanism includes an electric telescopic rod fixedly installed on the side of the moving box. The output end of the electric telescopic rod extends into the inner cavity of the processing chamber and is fixedly connected to a push-pull block. A conveyor box is fixedly connected to the side of the push-pull block. The end of the conveyor box extends through the feed inlet to the outside of the moving box. A slot is provided in the middle of one end of the conveyor box. Two driven rollers are rotatably connected to the inner side of one end of the conveyor box via bearings. A drive roller is rotatably connected to the inner side of the other end of the conveyor box via bearings. Two conveyor belts are connected between the drive roller and the two driven rollers. A first servo motor is fixedly installed on the side of the conveyor box. The output shaft of the first servo motor is connected to one end of the drive roller shaft via a coupling.

[0007] Optionally, the stabilizing mechanism includes two telescopic cylinders fixedly connected to the side of the moving box and a rope hole opened on the side of the moving box. Springs are fixedly connected to the bottom of the inner cavity of the two telescopic cylinders, and square columns are fixedly connected to the top of the two springs. Lifting plates are fixedly connected to the top of the two square columns. Pull ropes are fixedly connected to the bottom surface of the lifting plates. The ends of the pull ropes extend through the rope hole to the inner cavity of the processing chamber and are fixedly connected to a pull plate. The bottom surface of the pull plate is connected to the top surface of the conveying box. Fixing pins are fixedly connected to the bottom surfaces of the two square columns, and the bottom ends of the two fixing pins are movably sleeved to the bottom of the telescopic cylinders.

[0008] Optionally, the shearing mechanism includes a second servo motor fixedly installed at the end of the moving box and multiple crushing rollers rotatably connected to the processing chamber cavity via bearings. One end of each of the multiple crushing roller shafts extends to the outside of the moving box and is fixedly fitted with a spur gear. Each pair of adjacent spur gears meshes with each other. The output shaft of the second servo motor is connected to the other end of a crushing roller shaft via a coupling. A protective cover is fixedly connected to the end face of the moving box and located outside the spur gear.

[0009] Optionally, the storage mechanism includes a pull-out groove on the end face of the mobile box and a receiving box that is movably fitted into the inner cavity of the processing chamber. The end of the receiving box extends through the pull-out groove to the outside of the mobile box and is fixedly connected with a handle.

[0010] Optionally, the mobile box has a power supply chamber inside, the power supply chamber is equipped with a main power supply, a box door is hinged to the side of the mobile box outside the power supply chamber, handles are provided at both ends of the mobile box, and a control panel is fixedly installed at one end of the mobile box.

[0011] A method for using a pruning device for large trees includes the following steps; First, hold the handle and pull the moving box so that the slot on the conveyor box is aligned with the side of the sapling to be pruned; 2. The electric telescopic rod drives the conveyor box to move outward. The slot in the middle of the conveyor box moves to the outside of the main stem of the tree seedling. The pull plate and pull rope drive the lifting plate to move downward so that the bottom end of the fixing pin is inserted into the ground to fix the moving box. Third, the first servo motor drives the drive roller to rotate, which in turn drives the two conveyor belts to rotate. The second servo motor drives a crushing cutter roller and a spur gear to rotate. The transmission between multiple spur gears causes the crushing cutter roller to rotate. 4. Loosen the locking buckle to release the fixation of the bottom end of the outer tube, extend the inner tube to adjust the overall length of the shearing mechanism, and then use the locking buckle to fix the outer tube and the inner tube. 5. Holding the handle sleeve allows the two cutters to be placed on the outside of the branch to be pruned. The third motor drives the first bevel gear to rotate. Through the meshing transmission between the first bevel gear and the two second bevel gears, the two cutters are driven to move closer to each other to prune the branch. At the same time, the rubber blocks on the sides of the two cutters clamp the branch. 6. The third motor drives the first bevel gear to reverse. Through the cooperation of the first and second bevel gears, the two cutters move away from each other, causing the branches held by the two rubber blocks to fall onto the conveyor belt. 7. The conveyor belt transports the pruned branches and leaves into the inner cavity of the processing chamber, where multiple crushing rollers cut the branches and leaves into pieces. The cut branches and leaves then fall into the receiving box. 8. The electric telescopic rod drives the conveyor box to move in the opposite direction, causing the slot to disengage from the outside of the main stem of the tree seedling. The pull rope no longer pulls the lifting plate, and the spring force causes the fixing pin to disengage from the ground, releasing the fixation of the moving box. 9. Move the device to the side of another seedling to prune its branches and leaves.

[0012] This invention provides a device and method for pruning branches and leaves of large trees, which has the following beneficial effects: 1. This large tree pruning equipment and method utilizes a third motor to drive the first bevel gear to rotate forward and backward. Through the meshing transmission between the first bevel gear and two second bevel gears, the two cutters are brought together and separated, eliminating the need for manual manipulation to prune branches and leaves, thus reducing hand fatigue for workers. In addition, the combined use of the outer tube, inner tube, and handle sleeve allows workers to stand and hold the handle sleeve to prune the branches and leaves of tree seedlings without bending over. Furthermore, the outer and inner tubes are telescopic and can be fixed together using locking buckles, allowing adjustment of the overall length of the pruning mechanism to accommodate workers of different heights using trees of different heights.

[0013] 2. This large tree pruning equipment and method utilizes movable wheels to move the equipment, aligning the conveyor box with the tree to be pruned. An electric telescopic rod moves the conveyor box outwards, positioning the slot in the center of the box outside the main stem of the sapling. A first servo motor drives the drive roller and two conveyor belts to rotate. After the cutter prunes the branches and leaves, the conveyor belts transport the pruned material into the inner cavity of the conveyor box. Simultaneously, two rubber blocks clamp the pruned branches and leaves during pruning, ensuring they are smoothly placed onto the conveyor belt, thus collecting the pruned branches and leaves and avoiding subsequent collection. Furthermore, once the branches and leaves enter the processing chamber, a second servo motor and multiple spur gears rotate multiple crushing rollers, which shred the branches and leaves. This facilitates collection of the pruned branches and leaves and allows for subsequent high-temperature fermentation of the shredded material into organic fertilizer, resulting in high-quality operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the back side of the present invention; Figure 3 This is an overall exploded view of the present invention; Figure 4 This is a schematic cross-sectional view of the entire invention; Figure 5 This is a schematic diagram of the structure of the delivery box of the present invention; Figure 6 This is a schematic diagram of the outer tube structure of the present invention; Figure 7 This is a schematic diagram showing the disassembled outer tube, locking buckle, and mounting box of the present invention; Figure 8 This is a cross-sectional schematic diagram of the grip sleeve of the present invention; Figure 9 This is a schematic diagram of the transmission box of the present invention; Figure 10 This is a cross-sectional schematic diagram of the transmission box of the present invention; Figure 11 This is a cross-sectional schematic diagram of the telescopic cylinder of the present invention.

[0015] In the diagram: 1. Moving box; 2. Trimming mechanism; 3. Feed inlet; 4. Receiving mechanism; 5. Stabilizing mechanism; 6. Support shaft; 7. Moving wheel; 8. Shredding mechanism; 9. Storage mechanism; 10. Rubber hanger; 11. Outer tube; 12. Inner tube; 13. Hand grip; 14. Deformation groove; 15. Locking buckle; 16. Hand strap; 17. Mounting box; 18. Transmission box; 19. Transmission shaft; 20. Third motor; 21. First bevel gear; 22. Second bevel gear; 23. Movable groove; 24. Cutter; 25. Connecting plate; 26. Electric telescopic rod; 27. Conveyor box; 28. Push-pull block; 29. ​​Slot; 30. Driven roller; 31. Driven roller; 32. Conveyor belt; 33. First servo motor; 34. Crushing cutter roller; 35. Second servo motor; 36. Spur gear; 37. Protective cover; 38. Telescopic cylinder; 39. Spring; 40. Square column; 41. Lifting plate; 42. Pull rope; 43. Pull plate; 44. Rope threading hole; 45. Pull groove; 46. Receiving box; 47. Handle; 48. Power supply chamber; 49. Main power supply; 50. Box door; 51. Handle; 52. Control panel; 53. Control button; 54. Auxiliary power supply; 55. Circuit board; 56. Fixing pin; 57. Processing chamber; 58. Rubber block. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] Please see Figures 1 to 11This invention provides a technical solution: a large tree branch and leaf pruning device, including a mobile box 1, a processing chamber 57 inside the mobile box 1, a feed inlet 3 on one side of the mobile box 1, a receiving mechanism 4 for conveying and receiving branches and leaves on one side of the mobile box 1, a stabilizing mechanism 5 for fixing the mobile box 1 on the other side of the mobile box 1, a shredding mechanism 8 on the mobile box 1, a rubber hanger 10 fixedly connected to the end of the mobile box 1, a pruning mechanism 2 for processing branches and leaves on the rubber hanger 10, two support shafts 6 fixedly connected to the two sides of the bottom of the mobile box 1, and four wheels 7 rotatably connected to the outer sides of the four support shafts 6 through bearings. The diameter of the wheels 7 is sufficient to drive the device to move on the muddy ground. A storage mechanism 9 for collecting branch and leaf fragments is provided on the mobile box 1.

[0018] The trimming mechanism 2 includes an outer tube 11 fitted onto a rubber bracket 10. The rubber bracket 10 has a slot for fitting the outer tube 11, thus securing it in place. A handle sleeve 13 is fixedly fitted to the top of the outer tube 11. An inner tube 12 is movably fitted to the inner side of the bottom of the outer tube 11. A deformation groove 14 is provided at the bottom of the outer tube 11, and a locking buckle 15 is fitted thereon. The deformation groove 14 facilitates deformation of the bottom of the outer tube 11, allowing the locking buckle 15 to secure the outer tube 11 and inner tube 12. A mounting box 17 is fixedly connected to the bottom of the inner tube 12. The device includes a transmission box 18 and a grip sleeve 13, which can be made of plastic. The outer tube 11, inner tube 12, mounting box 17, and transmission box 18 can be made of plastic or carbon fiber to reduce the overall weight and facilitate use by the operator gripping the grip sleeve 13. The bottom surface of the transmission box 18 has a movable groove 23. Both sides of the inner cavity of the transmission box 18 are rotatably connected to transmission shafts 19 via bearings. Second bevel gears 22 are fixedly sleeved on the outer sides of the two transmission shafts 19. A third motor 20 is fixedly installed in the inner cavity of the mounting box 17. The output shaft of the third motor 20 extends into the inner cavity of the transmission box 18 and is fixedly sleeved with a first bevel gear 21. 1. It meshes with two second bevel gears 22 respectively. The ends of the two drive shafts 19 are respectively fixedly sleeved with cutters 24. The ends of the two cutters 24 extend through the movable grooves 23 to the outside of the transmission box 18. The sides of the two cutters 24 are respectively fixedly connected with connecting plates 25. Rubber blocks 58 are fixedly connected to the two connecting plates 25. The top of the grip sleeve 13 is fixedly connected with a hand strap 16. The side of the grip sleeve 13 is fixedly installed with a control button 53. The inner cavity of the grip sleeve 13 is provided with an auxiliary power supply 54. The top of the inner cavity of the outer tube 11 is provided with a circuit board 55. The circuit board 55, the auxiliary power supply 54, the third motor 20 and the control button 53 are connected. Electrically connected by wires, the auxiliary power supply 54 supplies power to the circuit board 55, the third motor 20, and the control button 53. The circuit board 55 and the control button 53 control the third motor 20. The program in the circuit board 55 causes the third motor 20 to drive the first bevel gear 21 to rotate forward and backward at a fixed angle. Thus, through the transmission between the first bevel gear 21 and the second bevel gear 22, the cutter 24 is driven to move closer to trim and unfold. The program in the circuit board 55 can be easily implemented by those skilled in the art. The provision of the main power supply 49 and the control panel 52 is common knowledge in the art, and the control method and circuit connection will not be explained in detail.

[0019] The receiving mechanism 4 includes an electric telescopic rod 26 fixedly installed on the side of the movable box 1. The output end of the electric telescopic rod 26 extends into the inner cavity of the processing chamber 57 and is fixedly connected to a push-pull block 28. A conveying box 27 is fixedly connected to the side of the push-pull block 28. The end of the conveying box 27 extends through the feed inlet 3 to the outside of the movable box 1. The side of the conveying box 27 is in contact with the inner wall of the feed inlet 3, and the bottom surface of the conveying box 27 is in contact with the bottom surface of the inner cavity of the feed inlet 3, ensuring that the feed inlet 3 can stably support the conveying box 27. A slot 29 is provided in the middle of the end. Two driven rollers 31 are rotatably connected to the inner side of one end of the conveyor box 27 via bearings. A driving roller 30 is rotatably connected to the inner side of the other end of the conveyor box 27 via bearings. Two conveyor belts 32 are connected between the driving roller 30 and the two driven rollers 31. The side of the conveyor belt 32 is in contact with the inner wall of the conveyor box 27 to prevent the conveyor belt 32 from deviating. A first servo motor 33 is fixedly installed on the side of the conveyor box 27. The output shaft of the first servo motor 33 is connected to one end of the shaft of the driving roller 30 via a coupling.

[0020] The stabilizing mechanism 5 includes two telescopic cylinders 38 fixedly connected to the side of the movable box 1 and a rope hole 44 opened on the side of the movable box 1. The two ends of the inner cavity of the rope hole 44 are respectively provided with arc corners to avoid damage to the pull rope 42. The bottom of the inner cavity of the two telescopic cylinders 38 is fixedly connected to springs 39. During production, springs 39 with appropriate elasticity are selected to ensure that the elasticity of the springs 39 is sufficient to push the square column 40, the fixing pin 56, and the lifting plate 41 to move upward and reset, thus ensuring that the fixing pin 56 can be smoothly pulled out of the ground. The top of the two springs 39 is fixedly connected to square columns. 40. The side of the square column 40 is in contact with the inner wall of the telescopic cylinder 38 to ensure the stability of the square column 40 in the telescopic cylinder 38. The top of the two square columns 40 is fixedly connected to the lifting plate 41. The bottom surface of the lifting plate 41 is fixedly connected to the pull rope 42. The end of the pull rope 42 extends through the rope hole 44 to the inner cavity of the processing chamber 57 and is fixedly connected to the pull plate 43. The bottom surface of the pull plate 43 is connected to the top surface of the conveying box 27. The bottom surfaces of the two square columns 40 are respectively fixedly connected to the fixing pins 56. The bottom ends of the two fixing pins 56 are respectively movably sleeved to the bottom of the telescopic cylinder 38.

[0021] The shearing mechanism 8 includes a second servo motor 35 fixedly installed at the end of the moving box 1 and multiple crushing rollers 34 rotatably connected to the inner cavity of the processing chamber 57 via bearings. Multiple blades are provided on the side of the crushing rollers 34 so that the branches and leaves can be sheared by the blades on two adjacent crushing rollers 34. One end of the rotating shaft of each of the multiple crushing rollers 34 extends to the outside of the moving box 1 and is fixedly sleeved with a spur gear 36. Each pair of adjacent spur gears 36 meshes with each other. The output shaft of the second servo motor 35 is connected to the other end of the rotating shaft of a crushing roller 34 via a coupling. A protective cover 37 is fixedly connected to the end face of the moving box 1 and outside the spur gear 36. The number of crushing rollers 34 is even, ensuring that two adjacent crushing rollers 34 rotate in opposite directions to crush the branches and leaves.

[0022] The storage mechanism 9 includes a pull-out groove 45 on the end face of the movable box 1 and a receiving box 46 that is movably fitted into the inner cavity of the processing chamber 57. The end of the receiving box 46 extends through the pull-out groove 45 to the outside of the movable box 1 and is fixedly connected to a handle 47. The receiving box 46 is used to catch the branches and leaves that are crushed by the crushing roller 34. In addition, the inner wall of the processing chamber 57 is in contact with the side of the receiving box 46 to ensure the stability of the receiving box 46 when inserted into the inner cavity of the processing chamber 57.

[0023] The mobile box 1 has a power supply chamber 48 inside, and a main power supply 49 is installed inside the power supply chamber 48. The main power supply 49 supplies power to the control panel 52, the electric telescopic rod 26, the second servo motor 35, and the first servo motor 33 through wires. A box door 50 is hinged to the side of the mobile box 1 outside the power supply chamber 48. Handles 51 are provided at both ends of the mobile box 1. The control panel 52 is fixedly installed at one end of the mobile box 1. The control panel 52 controls the electric telescopic rod 26, the second servo motor 35, and the first servo motor 33 through wires. The provision of the main power supply 49 and the control panel 52 is common knowledge in the field, and the control method and circuit connection will not be explained in detail.

[0024] A method for using a pruning device for large trees includes the following steps: First, hold handle 51 and pull the moving box 1 to move the moving box 1 on the ground where the tree seedlings are cultivated, and make the slot 29 on the conveyor box 27 aligned with the side of the tree seedling to be pruned. 2. Start the electric telescopic rod 26 to drive the push-pull block 28 and the conveyor box 27 to move, so that the slot 29 in the middle of the conveyor box 27 moves to the outside of the main stem of the tree seedling. In addition, during the outward movement of the conveyor box 27, the lifting plate 41 is driven to move downward by the cooperation of the pull plate 43 and the pull rope 42. The square column 40 and the fixing pin 56 overcome the elastic force of the spring 39 and move downward, so that the bottom end of the fixing pin 56 is inserted into the ground to fix the moving box 1. 3. Start the first servo motor 33 to drive the active roller 30 to rotate counterclockwise. The active roller 30 drives the two conveyor belts 32 to rotate counterclockwise. At the same time, start the second servo motor 35 to drive a crushing roller 34 and a spur gear 36 to rotate. Through the transmission between multiple spur gears 36, each pair of adjacent crushing rollers 34 rotate in opposite directions. Fourth, remove the outer tube 11 from the rubber bracket 10, loosen the locking buckle 15 to release the fixation of the bottom end of the outer tube 11, so that the inner tube 12 can extend and retract in the outer tube 11, and adjust the overall length of the pruning mechanism 2, so that the staff can stand and prune the tree seedlings by holding the handle sleeve 13. At this time, the locking buckle 15 is used to fix the outer tube 11 and the inner tube 12. 5. Hold the handle 13 so that the two cutters 24 are placed on the outside of the branch to be pruned. Press the control button 53 to control the third motor 20 to drive the first bevel gear 21 to rotate at a fixed angle. Through the meshing transmission between the first bevel gear 21 and the two second bevel gears 22, the two drive shafts 19 and the two cutters 24 are driven to rotate, so that the two cutters 24 move closer to each other to prune the branch. At the same time, as the two cutters 24 move closer to each other, the rubber blocks 58 on the sides of the two cutters 24 clamp the branch to prevent the pruned branch from falling off. 6. Release the control button 53 to make the third motor 20 drive the first bevel gear 21 to reverse at a fixed angle. Through the cooperation of the first bevel gear 21 and the second bevel gear 22, the two cutters 24 move away from each other, and the branches held by the two rubber blocks 58 fall onto the conveyor belt 32 and are transported into the inner cavity of the processing chamber 57. Similarly, multiple branches and leaves on the seedlings are pruned. 7. The conveyor belt 32 transports the pruned branches and leaves into the inner cavity of the processing chamber 57. Multiple crushing rollers 34 are used to cut the branches and leaves into pieces. The cut branches and leaves fall into the receiving box 46 and are collected. They can then be fermented at high temperature to make organic fertilizer for use in landscaping or farmland fertilization. 8. After pruning a sapling, the electric telescopic rod 26 drives the push-pull block 28 and the conveyor box 27 to move in the opposite direction, so that the slot 29 in the middle of the conveyor box 27 disengages from the outside of the main stem of the sapling. At this time, the pull rope 42 no longer pulls the lifting plate 41. The elastic force of the spring 39 drives the square column 40, the lifting plate 41 and the fixing pin 56 to move upward, so that the fixing pin 56 disengages from the ground and releases the fixation of the moving box 1. 9. Continue to hold handle 51 and pull the device to the side of another seedling. Then, prune the branches and leaves according to the steps above.

[0025] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A pruning device for large trees, comprising a mobile box (1), characterized in that: The mobile box (1) is equipped with a processing chamber (57), a feed inlet (3) is provided on one side of the mobile box (1), a receiving mechanism (4) is provided on one side of the mobile box (1), a stabilizing mechanism (5) is provided on the other side of the mobile box (1), a shearing mechanism (8) is provided on the mobile box (1), a rubber hanger (10) is fixedly connected to the end of the mobile box (1), a trimming mechanism (2) is provided on the rubber hanger (10), two support shafts (6) are fixedly connected to the two sides of the bottom of the mobile box (1), and four wheels (7) are rotatably connected to the outside of the four support shafts (6). A storage mechanism (9) is provided on the mobile box (1).

2. The tree pruning equipment according to claim 1, characterized in that: The trimming mechanism (2) includes an outer tube (11) fitted onto a rubber bracket (10), a handle sleeve (13) fixedly fitted at the top of the outer tube (11), an inner tube (12) movably fitted at the inner side of the bottom of the outer tube (11), a deformation groove (14) provided at the bottom of the outer tube (11), a locking buckle (15) fitted at the bottom of the outer tube (11), a mounting box (17) fixedly connected at the bottom of the inner tube (12), a transmission box (18) fixedly connected at the bottom of the mounting box (17), a movable groove (23) provided on the bottom surface of the transmission box (18), a transmission shaft (19) rotatably connected to both sides of the inner cavity of the transmission box (18), a second bevel gear (22) fixedly fitted to the outer sides of the two transmission shafts (19), and a third motor (20) fixedly installed in the inner cavity of the mounting box (17). The output shaft of the third motor (20) is fixedly sleeved with the first bevel gear (21), which meshes with the two second bevel gears (22) respectively. The ends of the two transmission shafts (19) are fixedly sleeved with cutters (24), and the ends of the two cutters (24) extend through the movable groove (23) to the outside of the transmission box (18). The sides of the two cutters (24) are fixedly connected with connecting plates (25), and rubber blocks (58) are fixedly connected to the two connecting plates (25). The top of the grip sleeve (13) is fixedly connected with a hand buckle rope (16), and the side of the grip sleeve (13) is fixedly installed with a control button (53). The inner cavity of the grip sleeve (13) is provided with an auxiliary power supply (54), and the top of the inner cavity of the outer tube (11) is provided with a circuit board (55).

3. The tree pruning equipment according to claim 1, characterized in that: The receiving mechanism (4) includes an electric telescopic rod (26) fixedly installed on the side of the mobile box (1). The output end of the electric telescopic rod (26) is fixedly connected to a push-pull block (28). The side of the push-pull block (28) is fixedly connected to a conveying box (27). The end of the conveying box (27) extends through the feed inlet (3) to the outside of the mobile box (1). A slot (29) is provided in the middle of one end of the conveying box (27). Two driven rollers (31) are rotatably connected to the inner side of one end of the conveying box (27). An active roller (30) is rotatably connected to the inner side of the other end of the conveying box (27). Two conveyor belts (32) are connected between the active roller (30) and the two driven rollers (31). A first servo motor (33) is fixedly installed on the side of the conveying box (27). The output shaft of the first servo motor (33) is connected to one end of the shaft of the active roller (30).

4. The tree pruning equipment according to claim 3, characterized in that: The stabilizing mechanism (5) includes two telescopic cylinders (38) fixedly connected to the side of the moving box (1) and a rope hole (44) opened on the side of the moving box (1). The bottom of the inner cavity of the two telescopic cylinders (38) is fixedly connected to springs (39). The top of the two springs (39) is fixedly connected to square columns (40). The top of the two square columns (40) is fixedly connected to lifting plates (41). The bottom surface of the lifting plate (41) is fixedly connected to a pull rope (42). The end of the pull rope (42) extends through the rope hole (44) to the inner cavity of the processing chamber (57) and is fixedly connected to a pull plate (43). The bottom surface of the pull plate (43) is connected to the top surface of the conveying box (27). The bottom surface of the two square columns (40) is fixedly connected to fixing pins (56). The bottom ends of the two fixing pins (56) are movably sleeved to the bottom of the telescopic cylinders (38).

5. The tree pruning equipment according to claim 1, characterized in that: The shredding mechanism (8) includes a second servo motor (35) fixedly installed at the end of the moving box (1) and multiple shredding rollers (34) rotatably connected to the processing chamber (57). One end of the shaft of each of the multiple shredding rollers (34) extends to the outside of the moving box (1) and is fixedly fitted with a spur gear (36). Each pair of adjacent spur gears (36) mesh with each other. The output shaft of the second servo motor (35) is connected to the other end of the shaft of a shredding roller (34). A protective cover (37) is fixedly connected to the end face of the moving box (1).

6. The tree pruning equipment according to claim 1, characterized in that: The storage mechanism (9) includes a pull-out groove (45) opened on the end face of the mobile box (1) and a receiving box (46) movably sleeved in the inner cavity of the processing chamber (57). The end of the receiving box (46) extends through the pull-out groove (45) to the outside of the mobile box (1) and is fixedly connected with a handle (47).

7. The tree pruning equipment according to claim 1, characterized in that: The mobile box (1) has a power supply chamber (48) inside, and a main power supply (49) is installed in the inner cavity of the power supply chamber (48). The side of the mobile box (1) is hinged with a box door (50). The two ends of the mobile box (1) are respectively provided with handles (51). A control panel (52) is fixedly installed at one end of the mobile box (1).

8. The method of using a large tree pruning device according to claim 1, characterized in that, Includes the following steps; First, hold the handle (51) and pull the moving box (1) so that the slot (29) on the conveyor box (27) is aligned with the side of the sapling to be pruned; 2. The electric telescopic rod (26) drives the conveyor box (27) to move outward. The slot (29) in the middle of the conveyor box (27) moves to the outside of the main stem of the tree seedling. The lifting plate (41) is moved downward by the pull plate (43) and the pull rope (42) so that the bottom end of the fixing pin (56) is inserted into the ground to fix the moving box (1).

3. The first servo motor (33) drives the active roller (30) to rotate, and the active roller (30) drives the two conveyor belts (32) to rotate. The second servo motor (35) drives a crushing roller (34) and a spur gear (36) to rotate. The transmission between multiple spur gears (36) makes the crushing roller (34) rotate.

4. Loosen the locking buckle (15) to release the fixation of the bottom end of the outer tube (11), extend and retract the inner tube (12) to adjust the overall length of the shearing mechanism (8), and then use the locking buckle (15) to fix the outer tube (11) and the inner tube (12); 5. Hold the handle sleeve (13) so that the two cutters (24) are placed on the outside of the branch to be pruned. The third motor (20) drives the first bevel gear (21) to rotate. Through the meshing transmission between the first bevel gear (21) and the two second bevel gears (22), the two cutters (24) are driven to move closer to each other to prune the branch. At the same time, the rubber blocks (58) on the sides of the two cutters (24) clamp the branch.

6. The third motor (20) drives the first bevel gear (21) to reverse. Through the cooperation of the first bevel gear (21) and the second bevel gear (22), the two cutters (24) move away from each other, causing the branches held by the two rubber blocks (58) to fall onto the conveyor belt (32). VII. The conveyor belt (32) transports the pruned branches and leaves to the inner cavity of the processing chamber (57), where multiple crushing rollers (34) cut the branches and leaves into pieces. The cut branches and leaves fall into the receiving box (46).

8. The electric telescopic rod (26) drives the conveyor box (27) to move in the opposite direction, causing the slot (29) to disengage from the outside of the main stem of the tree seedling. The pull rope (42) no longer pulls the lifting plate (41). The spring force (39) is used to make the fixing pin (56) disengage from the ground and release the fixation of the moving box (1).

9. Move the device to the side of another seedling to prune its branches and leaves.

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