Pruning device for picea purpurea seedlings

Abstract

The utility model belongs to the technical field of nursery stock pruning, and particularly relates to a pruning device for picea purpurea nursery stocks, which comprises a lifting plate, a rotating column is mounted on the lifting plate, two limiting rings are sleeved on the rotating column, and the two limiting rings are respectively positioned on the top side and the bottom side of the lifting plate. The top end of the rotating column is sleeved with a driven gear, a first motor is installed on the top side of the lifting plate, a driving gear is installed at the output end of the first motor, the driving gear is meshed with the driven gear, a transverse plate is fixedly connected to the bottom end of the rotating column, and a T-shaped rail is fixedly connected to the bottom side of the transverse plate. When the seedling trimming device is used for trimming seedlings, the trimming efficiency is improved and the stability and the consistency of trimming quality are ensured by adjusting the position and the angle of the blade and matching the meshing rotating mechanism, so that the appearance of seedling crowns can be ensured to be attractive, and a tidy, uniform and well-arranged visual effect is presented.

Description

Technical Field

[0001] This utility model relates to the field of seedling pruning technology, specifically a pruning device for purple spruce seedlings. Background Technology

[0002] Purple spruce is an evergreen tree. During its growth, pruning can control the growth direction and shape of the purple spruce seedlings, making the crown more uniform and full, enhancing the visual effect and improving the overall aesthetics.

[0003] Chinese patent CN110583274A discloses a seedling pruning machine, including a moving mechanism and a controller. A water spraying mechanism is located above the moving mechanism, and a pruning mechanism is located on the side of the moving mechanism. The pruning mechanism includes a top plate, an electric telescopic column, and a power box. The electric telescopic column is installed on the lower end face of the top plate, and the power box is located below the electric telescopic column. A second motor is installed inside the power box, and a cutter head is installed below the power box. The second motor, the electric telescopic column, and the controller are electrically connected. This invention has a simple structure, is flexible in movement, has low production costs, greatly saves labor, and improves the practicality of the device.

[0004] The aforementioned pruning device still has some problems in use. When pruning seedlings, it cannot guarantee the stability and consistency of pruning quality, resulting in different crown shapes and a lack of uniform aesthetics. Furthermore, the inconsistency in crown shape can also affect the photosynthesis and nutrient distribution of trees, thus adversely affecting their growth and development. Therefore, a pruning device for purple spruce seedlings is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background, this utility model proposes a pruning device for purple spruce seedlings.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A pruning device for purple spruce seedlings, comprising a lifting plate, a rotating column mounted on the lifting plate, two limiting rings sleeved on the rotating column, the two limiting rings being located on the top and bottom sides of the lifting plate respectively, a driven gear sleeved at the top of the rotating column, a first motor mounted on the top side of the lifting plate, a driving gear mounted at the output end of the first motor, and the driving gear meshing with the driven gear, a horizontal plate fixedly connected to the bottom end of the rotating column, a T-shaped track fixedly connected to the bottom side of the horizontal plate, and two sliding... The device comprises a sliding seat, with baffles at both ends. A bidirectional lead screw is rotatably mounted on each baffle, passing through the sliding seat. A rotating disk is fixed to one end of the lead screw. Rotating wheels are mounted on both ends of each fixed plate via rotating shafts. A conveyor belt is fitted onto the outer surface of the two rotating wheels. Multiple blades are fixed on the conveyor belt. A second motor is mounted on each fixed plate, with its output connected to one end of the rotating shaft. Multiple stop bars are mounted on each fixed plate, positioned below the conveyor belt. When pruning purple spruce seedlings, this device is first moved to the side of the tree to be pruned. The sapling to be pruned is placed between the two sets of pruning components. The rotating disc is then rotated, causing the bidirectional lead screw to rotate and forcing the two sliding seats closer together along the T-shaped track. This, in turn, moves the two conveyor belts and their blades closer together until they reach the appropriate position. The rotating disc is then stopped, and the sliding sleeve moves along the limit rail. With the cooperation of the short and long swing rods, the angles of the two conveyor belts and their blades change until multiple blades on the conveyor belts contact the sapling crown. At this point, the locking bolts secure the sliding sleeve, allowing the pruning angle to be adjusted as needed, ensuring that the blades form a proper contact with the sapling crown. The optimal contact angle is determined to improve the subsequent pruning effect. Then, the first motor operates, causing the drive gear to rotate, which in turn forces the driven gear to drive the rotating column to rotate, thereby causing the blades on the two conveyor belts to rotate as well. At the same time, the second motor operates, causing the conveyor belt to drive the blades to rotate, thus enabling rotational pruning along the tree crown. By adjusting the position and angle of the blades and coordinating the meshing and rotating mechanism, this pruning method not only improves pruning efficiency but also ensures the stability and consistency of pruning quality, thereby ensuring the aesthetic shape of the tree crown and presenting a neat, uniform, and well-arranged visual effect.

[0007] Preferably, each sliding seat is fixedly connected to a first fixed seat, and each first fixed seat is hinged to a short swing rod. The other end of the short swing rod is hinged to a second fixed seat. A fixed plate is installed on the second fixed seat, and a limit slide rail is mounted on the fixed plate. A sliding sleeve is fitted on the limit slide rail, and a third fixed seat is fixedly connected to the sliding sleeve. A long swing rod is hinged to the third fixed seat, and the other end of the long swing rod is hinged to a fourth fixed seat. The fourth fixed seat is fixedly connected to the sliding seat. A screw hole is opened on the sliding sleeve, and a locking bolt is rotatably installed in the screw hole. The bottom end of the locking bolt contacts the outer surface of the limit slide rail. When adjusting the pruning angle, the sliding sleeve moves on the limit slide rail. With the cooperation of the short and long swing rods, the angles of the two conveyor belts and the blades on them change until multiple blades on the conveyor belts contact the crown of the seedling. At this point, the locking bolts fix the sliding sleeve, thereby allowing the pruning angle to be adjusted as needed, facilitating better subsequent pruning operations.

[0008] Preferably, L-shaped plates are fixed to both sides of the lifting plate, and a cover is fixed to each of the two L-shaped plates. A blower is installed inside each of the two covers. During the pruning process, the blower can blow away fallen leaves, dead branches, debris, etc., which can effectively prevent dead branches and other debris from hitting or scratching the workers and greatly improve work safety.

[0009] Preferably, a pneumatic cylinder is installed on the base, and a pneumatic rod is fitted to the working end of the pneumatic cylinder. The top end of the pneumatic rod is fixed to the lifting plate. Two limiting rods are fixed to the base, and the two limiting rods are located on both sides of the pneumatic cylinder. The limiting rods pass through the lifting plate. When using the device, the pneumatic cylinder operates, causing the pneumatic rod to move the lifting plate up or down, thereby enabling the trimming mechanism to move up or down accordingly. This allows for adjustment of the trimming height to meet different trimming height requirements.

[0010] Preferably, a battery box and a control box are respectively installed on the top side of the base, and four mounting seats are fixedly connected to the bottom side of the base. Each mounting seat is equipped with a caster wheel, and a push handle is mounted on the base. When using the device, the caster wheel makes it easy to move the device to a suitable position.

[0011] The advantages of this utility model are:

[0012] This invention, when pruning purple spruce seedlings, involves rotating a rotating disc, which causes a bidirectional lead screw to rotate. This, in turn, moves two sliding seats, along with two conveyor belts and their blades, closer together until they reach a suitable position. The rotating disc is then stopped, and a sliding sleeve moves along a limit rail. With the cooperation of a short and a long swing rod, the angles of the two conveyor belts and their blades change until multiple blades on the conveyor belts contact the seedling crown. At this point, locking bolts secure the sliding sleeve, allowing for adjustment of the pruning angle as needed to ensure the blades form the optimal contact angle with the seedling crown. To improve the subsequent pruning effect, the first motor operates, causing the drive gear to rotate, which in turn forces the driven gear to drive the rotating column to rotate, thereby causing the blades on the two conveyor belts to rotate as well. At the same time, the second motor operates, causing the conveyor belt to drive the blades to rotate, thus enabling rotational pruning along the tree crown. By adjusting the position and angle of the blades and coordinating the meshing and rotating mechanism, this pruning method not only improves pruning efficiency but also ensures the stability and consistency of pruning quality, thereby ensuring that the tree crown has an aesthetically pleasing shape and presents a neat, uniform, and well-arranged visual effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device;

[0015] Figure 2 A three-dimensional structural diagram of the lifting mechanism and the trimming mechanism;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the pruning mechanism;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the trimming component;

[0018] Figure 5 This is a partial three-dimensional structural diagram of the device.

[0019] In the diagram: 1. Lifting plate; 2. Rotating column; 3. Limiting ring; 4. Driven gear; 5. First motor; 6. Driving gear; 7. Horizontal plate; 8. T-shaped track; 9. Sliding seat; 10. Baffle; 11. Double-acting lead screw; 12. Rotary disk; 13. First fixed seat; 14. Short swing rod; 15. Second fixed seat; 16. Fixed plate; 17. Limiting slide rail; 18. Sliding sleeve; 19. Locking bolt; 20. Third fixed seat; 21. Long swing rod; 22. Fourth fixed seat; 23. Rotating wheel; 24. Conveyor belt; 25. Second motor; 26. Blade; 27. Stop bar; 28. L-shaped plate; 29. ​​Housing; 30. Blower; 31. Base; 32. Pneumatic cylinder; 33. Pneumatic rod; 34. Limiting rod; 35. Battery box; 36. Control box; 37. Mounting seat; 38. Moving wheel; 39. Push handle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4As shown, a pruning device for purple spruce seedlings includes a lifting plate 1, a rotating column 2 mounted on the lifting plate 1, two limiting rings 3 sleeved on the rotating column 2, the two limiting rings 3 being located on the top and bottom sides of the lifting plate 1 respectively, a driven gear 4 sleeved on the top of the rotating column 2, a first motor 5 mounted on the top side of the lifting plate 1, a driving gear 6 mounted on the output end of the first motor 5, and the driving gear 6 meshing with the driven gear 4, a horizontal plate 7 fixedly connected to the bottom end of the rotating column 2, a T-shaped track 8 fixedly connected to the bottom side of the horizontal plate 7, two sliding seats 9 sleeved on the T-shaped track 8, each sliding seat 9 having a baffle 10 at both ends, and a bidirectional lead screw 11 rotatably mounted on the two baffles 10. A bidirectional lead screw 11 is installed through the sliding seat 9. One end of the bidirectional lead screw 11 is fixedly connected to a rotating disk 12. Both ends of each fixed plate 16 are fitted with rotating wheels 23 via rotating shafts. A conveyor belt 24 is fitted onto the outer surface of the two rotating wheels 23. Multiple blades 26 are fixed on the conveyor belt 24. A second motor 25 is installed on the fixed plate 16. The output end of the second motor 25 is connected to one end of the rotating shaft. Multiple stop bars 27 are mounted on each fixed plate 16, and the stop bars 27 are located below the conveyor belt 24. When pruning purple spruce seedlings, the device is first moved to the side of the tree to be pruned, and the seedling to be pruned is placed between the two sets of pruning components. Then the rotating shaft is rotated. The turntable 12 causes the bidirectional lead screw 11 to rotate, forcing the two sliding seats 9 to move closer together along the T-shaped track 8. This, in turn, causes the two conveyor belts 24 and their blades 26 to move closer together until they reach the appropriate position. The turntable 12 then stops rotating, causing the sliding sleeve 18 to move on the limiting slide rail 17. With the cooperation of the short swing rod 14 and the long swing rod 21, the angles of the two conveyor belts 24 and their blades 26 change until the multiple blades 26 on the conveyor belts 24 contact the tree crown. At this point, the locking bolt 19 secures the sliding sleeve 18, allowing the pruning angle to be adjusted as needed to ensure the blades 26 form the optimal shape with the tree crown. The contact angle is adjusted to improve the subsequent pruning effect. Then, the first motor 5 operates, causing the drive gear 6 to rotate, which in turn forces the driven gear 4 to drive the rotating column 2 to rotate. This causes the blades 26 on the two conveyor belts 24 to rotate as well. At the same time, the second motor 25 operates, causing the conveyor belts 24 to drive the blades 26 to rotate. This allows for rotational pruning along the tree crown. By adjusting the position and angle of the blades 26 and coordinating the meshing and rotating mechanism, this pruning method not only improves pruning efficiency but also ensures the stability and consistency of pruning quality. This ensures that the tree crown has an aesthetically pleasing shape, presenting a neat, uniform, and well-arranged visual effect.

[0022] The fixed plate 16 is equipped with a limiting slide rail 17, and a sliding sleeve 18 is sleeved on the limiting slide rail 17. A third fixed seat 20 is fixedly connected to the sliding sleeve 18. A long swing rod 21 is hinged inside the third fixed seat 20, and the other end of the long swing rod 21 is hinged to a fourth fixed seat 22. The fourth fixed seat 22 is fixedly connected to the sliding seat 9. A screw hole is opened on the sliding sleeve 18, and a locking bolt 19 is rotatably installed in the screw hole. The bottom end of the locking bolt 19 is in contact with the outer surface of the limiting slide rail 17. A first fixed seat 13 is fixedly connected to each sliding seat 9, and a short swing rod is hinged inside each first fixed seat 13. The rod 14 has a second fixed seat 15 hinged to the other end of the short swing rod 14, and a fixed plate 16 is installed on the second fixed seat 15. When adjusting the pruning angle, the sliding sleeve 18 moves on the limiting slide rail 17. With the cooperation of the short swing rod 14 and the long swing rod 21, the angles of the two conveyor belts 24 and the blades 26 on them change until the multiple blades 26 on the conveyor belt 24 come into contact with the crown of the seedling. Then, the sliding sleeve 18 is fixed by the action of the locking bolt 19, so that the pruning angle can be adjusted as needed, which facilitates better subsequent pruning operations.

[0023] Please see Figure 5 As shown, L-shaped plates 28 are fixedly connected to both sides of the lifting plate 1, and housings 29 are fixedly connected to both L-shaped plates 28. Blowers 30 are installed inside both housings 29. During the pruning process, the blowers 30 can blow away fallen leaves, dead branches, debris, etc., which can effectively prevent dead branches and other debris from hitting or scratching the workers and greatly improve work safety.

[0024] Please see Figure 2 As shown, a pneumatic cylinder 32 is installed on the base 31. A pneumatic rod 33 is fitted to the working end of the pneumatic cylinder 32. The top end of the pneumatic rod 33 is fixed to the lifting plate 1. Two limiting rods 34 are fixed to the base 31, and the two limiting rods 34 are located on both sides of the pneumatic cylinder 32. The limiting rods 34 pass through the lifting plate 1. When using the device, the pneumatic cylinder 32 operates, and with the cooperation of the limiting rods 34, the pneumatic rod 33 drives the lifting plate 1 to move stably up or down, so that the trimming mechanism can also move up or down. After the trimming mechanism moves to a suitable height, the pneumatic cylinder 32 stops operating, so that the trimming height can be adjusted to meet the trimming requirements of different heights.

[0025] Please see Figure 1 As shown, a battery box 35 and a control box 36 are respectively installed on the top side of the base 31, and four mounting seats 37 are fixedly connected to the bottom side of the base 31. Each mounting seat 37 is equipped with a caster wheel 38, and a push handle 39 is mounted on the base 31. When using the device, the caster wheel 38 makes it easy to move the device to a suitable position.

[0026] Working Principle: The aforementioned pruning device still has some problems in use. When pruning seedlings, it cannot guarantee the stability and consistency of pruning quality, resulting in inconsistent crown shapes and a lack of unified aesthetics. Furthermore, the inconsistent crown shape can affect the tree's photosynthesis and nutrient distribution, thus adversely affecting its growth and development. Therefore, a pruning device for *Picea purpurea* seedlings is proposed to address these problems. When pruning *Picea purpurea* seedlings, the device is first moved next to the tree to be pruned, and the seedling to be pruned is placed between two sets of pruning components. Then, the rotating disk 12 is rotated, causing the bidirectional lead screw 11 to rotate, forcing the two sliding seats 9 to move closer together along the T-shaped track 8. This, in turn, drives the two conveyor belts 24 and their blades 26 to move closer together until they reach a suitable position. The rotating disk 12 is then stopped, and the sliding sleeve 18 moves on the limiting slide rail 17. With the cooperation of the short swing rod 14 and the long swing rod 21, the angles of the two conveyor belts 24 and their blades 26 change until the multiple blades 26 on the conveyor belts 24 are aligned with the seedling crown. When the blades come into contact, the locking bolt 19 secures the sliding sleeve 18, allowing the pruning angle to be adjusted as needed. This ensures that the blade 26 forms the optimal contact angle with the tree crown, improving subsequent pruning results. The first motor 5 then rotates the drive gear 6, forcing the driven gear 4 to rotate the rotating column 2, which in turn rotates the blades 26 on the two conveyor belts 24. Simultaneously, the second motor 25 rotates the conveyor belts 24, causing the blades 26 to rotate. This allows for rotational pruning along the tree crown. By adjusting the position and angle of the blades 26 and coordinating the rotating mechanism, this pruning method not only improves efficiency but also ensures the stability and consistency of pruning quality, resulting in a beautiful, uniform, and aesthetically pleasing tree crown. During pruning, the blower 30 removes fallen leaves, dead branches, and debris, effectively preventing injury to workers and significantly enhancing safety.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pruning device for purple spruce seedlings, characterized in that: The system includes a lifting plate (1), on which a rotating column (2) is mounted. Two limiting rings (3) are fitted onto the rotating column (2), located on the top and bottom sides of the lifting plate (1), respectively. A driven gear (4) is fitted onto the top of the rotating column (2). A first motor (5) is mounted on the top side of the lifting plate (1), and a driving gear (6) is mounted on the output end of the first motor (5). The driving gear (6) meshes with the driven gear (4). A horizontal plate (7) is fixedly connected to the bottom end of the rotating column (2), and a T-shaped track (8) is fixedly connected to the bottom side of the horizontal plate (7). Two sliding seats (9) are fitted on the T-shaped track (8). Both ends of the sliding seats (9) are provided with baffles (10). The two baffles (10) are rotatably mounted with a two-way screw (11). The two-way screw (11) passes through the sliding seat (9). One end of the two-way screw (11) is fixedly connected to a rotating disk (12). Each sliding seat (9) is fixedly connected to a first fixed seat (13). Each first fixed seat (13) is hinged with a short swing rod (14). The other end of the short swing rod (14) is hinged to a second fixed seat (15). A fixed plate (16) is installed on the second fixed seat (15).

2. The pruning device for purple spruce seedlings according to claim 1, characterized in that: The fixed plate (16) is equipped with a limiting slide rail (17), and a sliding sleeve (18) is fitted on the limiting slide rail (17). A third fixed seat (20) is fixedly connected to the sliding sleeve (18). A long swing rod (21) is hinged inside the third fixed seat (20), and the other end of the long swing rod (21) is hinged to a fourth fixed seat (22). The fourth fixed seat (22) is fixedly connected to the sliding seat (9). A screw hole is opened on the sliding sleeve (18), and a locking bolt (19) is rotatably fitted inside the screw hole. The bottom end of the locking bolt (19) is in contact with the outer surface of the limiting slide rail (17).

3. The pruning device for purple spruce seedlings according to claim 1, characterized in that: Each fixed plate (16) has a rotating wheel (23) installed at both ends through a rotating shaft. The outer surfaces of the two rotating wheels (23) are fitted with a conveyor belt (24). Multiple blades (26) are fixed on the conveyor belt (24). A second motor (25) is installed on the fixed plate (16). The output end of the second motor (25) is connected to one end of the rotating shaft. Multiple stop bars (27) are installed on each fixed plate (16), and the stop bars (27) are located below the conveyor belt (24).

4. The pruning device for purple spruce seedlings according to claim 1, characterized in that: L-shaped plates (28) are fixedly connected to both sides of the lifting plate (1), and housings (29) are fixedly connected to both L-shaped plates (28). Blowers (30) are installed inside both housings (29).

5. A pruning device for purple spruce seedlings according to claim 1, characterized in that: A pneumatic cylinder (32) is installed on the base (31). The working end of the pneumatic cylinder (32) is equipped with a pneumatic rod (33). The top end of the pneumatic rod (33) is fixed to the lifting plate (1). Two limiting rods (34) are fixed on the base (31), and the two limiting rods (34) are located on both sides of the pneumatic cylinder (32). The limiting rods (34) pass through the lifting plate (1).

6. A pruning device for purple spruce seedlings according to claim 5, characterized in that: A battery box (35) and a control box (36) are respectively installed on the top side of the base (31). Four mounting seats (37) are fixed to the bottom side of the base (31). Each mounting seat (37) is equipped with a moving wheel (38). A push handle (39) is mounted on the base (31).

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