Guide rail self-propelled seedling trimmer

By combining a self-propelled guide rail design with a motor-driven wheel assembly, the problem of high labor intensity caused by manual pushing of equipment in existing technologies has been solved, enabling rapid and flexible pruning of seedling areas in greenhouses and improving pruning efficiency and precision.

CN224178727UActive Publication Date: 2026-05-01LUOYANG YITONG ELECTRICAL SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LUOYANG YITONG ELECTRICAL SCI & TECH
Filing Date
2025-05-07
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing seedling trimming devices require manual pushing to move laterally in greenhouses, increasing labor intensity and reducing trimming efficiency.

Method used

Adopting a self-propelled guide rail design, the device utilizes a cross-shaped layout of front and rear guide rails and left and right guide rails, combined with lifting mechanisms for front and rear wheel assemblies and left and right wheel assemblies, to achieve rapid lateral and longitudinal movement of the seedling area. The motor drive ensures the stability and flexibility of the equipment.

Benefits of technology

It enables rapid switching and pruning of seedling areas, improves pruning efficiency, reduces equipment shaking and offset, and ensures pruning accuracy and stability.

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Abstract

The utility model relates to a guide rail self-propelled seedling trimmer which comprises a rack, the rack is provided with a walking leaf cutting mechanism used for moving in the width direction of a seedling area and trimming seedlings in the seedling area, and the two sides of the seedling area in the width direction are provided with a front guide rail and a rear guide rail respectively. Left and right guide rails crossed with the front and rear guide rails are arranged on the two sides of the seedling area in the length direction respectively, front and rear wheel assemblies in rolling fit with the front and rear guide rails are arranged on the front and rear sides of the rack respectively, and a first driving mechanism is arranged on the rack. Lifting mechanisms are arranged on the left side and the right side of the rack correspondingly and provided with left and right wheel assemblies, and second driving mechanisms used for driving the left and right wheel assemblies to walk on the left and right guide rails are arranged on the lifting mechanisms. Through the crossed layout of the front and rear guide rails and the left and right guide rails and the cooperation of the front and rear wheel assemblies, the lifting mechanism and the left and right wheel assemblies, the trimmer can rapidly move in the transverse direction and the longitudinal direction in a seedling area.
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Description

Technical Field

[0001] This utility model relates to the field of seedling trimming technology, and in particular to a guide rail self-propelled seedling trimming machine. Background Technology

[0002] Greenhouse cultivation has become an important development path for agriculture, with greenhouses used for growing precious flowers, vegetables, fruits, tobacco, and other crops. However, existing greenhouse cultivation requires pruning of seedlings.

[0003] Existing patent CN219248644U discloses a device comprising two horizontal tracks arranged in a front-to-back direction, with the tracks positioned on either side of a seedling area. A horizontal traveling beam, adapted to the position of the tracks, is positioned horizontally in a left-to-right direction directly above the seedling area. Each end of the traveling beam has a vertical end support, and the bottom of each end support has multiple track wheels for easy movement along the corresponding horizontal tracks. The traveling beam includes two support beams and a traveling frame located on top of the support beams. A matching traveling leaf-cutting head is mounted on the traveling frame, used to move left and right along the frame to cut leaves from the seedlings. Since multiple seedling areas are arranged side-by-side at intervals along their width in a greenhouse, while some existing pruning devices can perform pruning operations along the length of the seedling area, after pruning one area, pruning the next adjacent area requires manual pushing of the equipment laterally along the width of the seedling area. This method of operation not only consumes a lot of manpower and significantly increases the labor intensity of operators, but also the frequent manual intervention leads to poor work continuity and greatly reduces the overall pruning efficiency. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a guide rail self-propelled seedling trimming machine.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a guide rail self-propelled seedling trimmer, including a frame, a walking leaf trimming mechanism for moving along the width direction of the seedling area and trimming the seedlings in the seedling area, front and rear guide rails are respectively provided on both sides of the seedling area along the width direction, and left and right guide rails arranged in a cross shape with the front and rear guide rails are respectively provided on both sides of the seedling area along the length direction, front and rear wheel assemblies that roll with the front and rear guide rails are respectively provided on the front and rear sides of the frame, and a first drive mechanism is provided on the frame for driving one side of the front and rear wheel assembly to move on the front and rear guide rails.

[0006] The frame is equipped with lifting mechanisms on the left and right sides respectively. The lifting mechanisms are equipped with left and right wheel assemblies. The lifting mechanisms are used to drive the left and right wheel assemblies to move up and down so as to make the left and right wheel assemblies contact or separate from the left and right guide rails. The lifting mechanisms are equipped with a second drive mechanism for driving the left and right wheel assemblies to move on the left and right guide rails.

[0007] Furthermore, the intersection of the left and right guide rails and the front and rear guide rails is provided with a notch for the passage of the front and rear wheel assembly or the left and right wheel assembly.

[0008] Furthermore, the two front and rear wheel assemblies each include two front traveling wheels and two rear traveling wheels, and the first drive mechanism includes a first track wheel motor mounted on the frame for driving the rear traveling wheels to travel on the front and rear guide rails.

[0009] Furthermore, both the front and rear wheels are provided with annular V-shaped grooves that mate with the front and rear guide rails.

[0010] Furthermore, the left and right wheel assemblies respectively include an active walking wheel and a driven walking wheel, and the second drive mechanism includes a second track wheel motor for driving the active walking wheel to travel on the left and right guide rails.

[0011] Furthermore, both the active and passive wheels are provided with annular V-shaped grooves that cooperate with the left and right guide rails.

[0012] Furthermore, the lifting mechanism includes an electric push rod and a lifting frame that is vertically slidably mounted on the frame, with left and right wheel assemblies located at the lower end of the lifting frame, and the push rod end of the electric push rod connected to the lifting frame.

[0013] Furthermore, sliders are provided on the left and right sides of the lifting frame, and slide rails that slide and cooperate with the sliders are vertically provided on the frame.

[0014] Furthermore, the walking leaf-cutting mechanism is equipped with a water tank, a water pump, and a chemical pipeline connected to the output end of the water pump. The input end of the water pump is connected to the water tank through an inlet pipeline. Spray pipes connected to the chemical pipeline are respectively located on the front and rear sides of the frame of the walking leaf-cutting mechanism. Solenoid valves are installed on the chemical pipelines.

[0015] The beneficial effects of this application are as follows: 1. Through the cross-shaped layout of the front and rear guide rails and the left and right guide rails, as well as the cooperation of the front and rear wheel assembly, the lifting mechanism and the left and right wheel assembly, the pruning machine can achieve rapid horizontal and vertical movement in the seedling area, and can quickly and flexibly switch the position of each seedling area.

[0016] 2. The annular V-grooves on the front and rear traveling wheels of this application cooperate with the front and rear guide rails, and the annular V-grooves on the driving and driven traveling wheels cooperate with the left and right guide rails, ensuring the stability of the trimmer's movement on the guide rails, reducing swaying and deviation, and improving trimming accuracy.

[0017] 3. In this application, the first track wheel motor drives the rear walking wheel, and the second track wheel motor drives the active walking wheel, providing power for movement in the forward and backward and left and right directions, respectively, to ensure that the trimmer can move smoothly and quickly and improve trimming efficiency. Attached Figure Description

[0018] Figure 1 This is a first structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the second structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the lifting mechanism of this utility model.

[0021] The diagram is labeled as follows: 1. Front and rear guide rails, 2. Frame, 3. Walking and shearing mechanism, 4. Rear walking wheel, 41. First track wheel motor, 5. Front walking wheel, 6. Driven walking wheel, 61. Second track wheel motor, 7. Driven walking wheel, 8. Lifting mechanism, 81. Electric push rod, 82. Lifting frame, 83. Slider, 84. Slide rail, 9. Left and right guide rails, 10. Water tank, 11. Water pump, 12. Chemical pipeline, 13. Solenoid valve, 14. Battery, 15. Electrical control box, 16. Water spray pipe, 17. Notch. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Please see Figure 1-3This utility model provides a self-propelled seedling trimming machine with guide rails, including a frame 2. The frame 2 is equipped with a walking and leaf-trimming mechanism 3 for moving along the width of the seedling area and trimming the seedlings in the seedling area. The seedling area is provided with front and rear guide rails 1 on both sides along the width direction, and with left and right guide rails 9 arranged in a cross shape with the front and rear guide rails 1 on both sides along the length direction. The frame 2 is provided with front and rear wheel assemblies that roll with the front and rear guide rails 1 on both sides. The frame 2 is provided with a first drive mechanism for driving one of the front and rear wheel assemblies to move on the front and rear guide rails 1. The frame 2 is provided with lifting mechanisms 8 on both sides. The lifting mechanisms 8 are provided with left and right wheel assemblies. The lifting mechanisms 8 are used to drive the left and right wheel assemblies to move up and down so as to achieve contact or separation between the left and right wheel assemblies and the left and right guide rails 9. The lifting mechanisms 8 are provided with a second drive mechanism for driving the left and right wheel assemblies to move on the left and right guide rails 9.

[0024] The walking leaf-cutting mechanism 3 in this application adopts the walking leaf-cutting mechanism in existing patent CN219248644U. This walking leaf-cutting mechanism includes a walking frame, on which a matching walking leaf-cutting head is provided. The specific structure of the walking frame and the walking leaf-cutting head can adopt the structure in existing patent CN219248644U, and will not be described in detail here.

[0025] Combination Figure 1 As shown, a notch 17 is provided at the intersection of the left and right guide rails 9 and the front and rear guide rails 1 to allow the front and rear wheel assemblies or the left and right wheel assemblies to pass through. The notch 17 facilitates the passage of the front and rear wheel assemblies and the left and right wheel assemblies, effectively preventing interference between the front and rear wheel assemblies or the left and right wheel assemblies at the intersection of the left and right guide rails 9 and the front and rear guide rails 1. The two front and rear wheel assemblies each include two front traveling wheels 5 and two rear traveling wheels 4. The first drive mechanism includes a first track wheel motor 41 mounted on the frame 2 for driving the rear traveling wheels 4 to travel on the front and rear guide rails 1. Both the front traveling wheels 5 and the rear traveling wheels 4 are provided with annular V-shaped grooves that cooperate with the front and rear guide rails 1.

[0026] Specifically, the left and right wheel assemblies respectively include an active traveling wheel 6 and a driven traveling wheel 7, and the second drive mechanism includes a second track wheel motor 61 for driving the active traveling wheel 6 to travel on the left and right guide rails 9. Both the active traveling wheel 6 and the driven traveling wheel 7 have annular V-shaped grooves on their outer circumferences that cooperate with the left and right guide rails 9.

[0027] More specifically, the lifting mechanism 8 includes an electric push rod 81 and a lifting frame 82 vertically slidably mounted on the frame 2. Left and right wheel assemblies are located at the lower end of the lifting frame 82. The push rod of the electric push rod 81 is vertically oriented, and its end is connected to the lifting frame 82. Slider blocks 83 are respectively provided on the left and right sides of the lifting frame 82, and a slide rail 84 is vertically mounted on the frame 2 to slide in cooperation with the sliders 83. When the electric push rod 81 operates, it drives the lifting frame 82 to move up and down, thereby achieving contact or separation between the left and right wheel assemblies and the left and right guide rails 9.

[0028] In addition, the walking leaf-pruning mechanism 3 is equipped with a water tank 10, and a water pump 11 is mounted on the water tank 10. The output end of the water pump 11 is connected to a chemical solution pipeline 12, and the input end of the water pump 11 is connected to the water tank 10 through a water inlet pipeline. The walking leaf-pruning mechanism 3 has spray pipes 16 on the front and rear sides of the frame 2, respectively, which are connected to the chemical solution pipeline 12. The chemical solution pipeline 12 is equipped with a solenoid valve 13. While pruning the seedlings, the solenoid valve 13 can be opened to start the water pump 11 as needed. The water or chemical solution in the water tank 10 is then sprayed onto the seedlings through the chemical solution pipeline 12 and the spray pipes 16.

[0029] Of course, this utility model is not limited to the embodiments described above. Several other embodiments based on the design concept of this utility model are also provided below.

[0030] For example, in other embodiments, unlike the embodiments described above, a battery 14 and an electrical control box 15 are respectively provided on both sides of the walking leaf-cutting mechanism 3 on the frame 2. The electrical control box 15 contains a control unit, which includes a PLC controller. The PLC controller is electrically connected to the walking leaf-cutting mechanism 3, the first track wheel motor 41, the second track wheel motor 61, the electric push rod 81, the water pump 11, and the solenoid valve 13. The battery 14 is electrically connected to the PLC controller, the walking leaf-cutting mechanism 3, the first track wheel motor 41, the second track wheel motor 61, the electric push rod 81, the water pump 11, and the solenoid valve 13.

[0031] The working principle of this application is as follows: Based on operational requirements, the first track wheel motor 41 is activated, driving the rear traveling wheels 4 to move along the front and rear guide rails 1, causing the pruning machine to move along the length of the seedling area. Simultaneously, the traveling leaf-cutting mechanism 3 prunes the seedlings within the seedling area. When it is necessary to move horizontally along the width of the seedling area to the next seedling area, the first track wheel motor 41 drives the rear traveling wheels 4 to move the frame 2 to the intersection of the front and rear guide rails 1 and the left and right guide rails 9. The electric push rod 81 drives the lifting frame 82 to descend, allowing the left and right wheel assemblies to contact the left and right guide rails 9. Then, the electric push rod 81 extends further, causing the frame 2 to rise and ultimately disengage the two front traveling wheels 5 and the two rear traveling wheels 4 from the front and rear guide rails 1. Then, the second track wheel motor 61 drives the active traveling wheels 6 to move along the left and right guide rails 9, enabling the pruning machine to move to the adjacent seedling area for pruning operations. After moving to the adjacent seedling area, the electric push rod 81 drives the lifting frame 82 to rise, eventually separating the left and right wheel assemblies from the left and right guide rails 9, and the front and rear wheel assemblies contacting the front and rear guide rails 1. Then, the seedlings in that seedling area can be trimmed. During the trimming process, the equipment smoothly transitions when the front and rear wheel assemblies and the left and right wheel assemblies pass through the gap 16 at the intersection of the guide rails.

[0032] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A self-propelled seedling trimmer with a guide rail, comprising a frame (2), wherein the frame (2) is provided with a walking leaf trimming mechanism (3) for moving along the width of the seedling area and trimming the seedlings in the seedling area, characterized in that, The seedling area is provided with front and rear guide rails (1) on both sides along the width direction, and the seedling area is provided with left and right guide rails (9) arranged in a cross shape with the front and rear guide rails (1) on both sides along the length direction. The frame (2) is provided with front and rear wheel assemblies that roll with the front and rear guide rails (1) on both sides. The frame (2) is provided with a first drive mechanism for driving the front and rear wheel assembly on one side to move on the front and rear guide rails (1). The frame (2) is provided with lifting mechanisms (8) on the left and right sides respectively. The lifting mechanism (8) is provided with left and right wheel assemblies. The lifting mechanism (8) is used to drive the left and right wheel assemblies to move up and down so as to achieve contact or separation between the left and right wheel assemblies and the left and right guide rails (9). The lifting mechanism (8) is provided with a second drive mechanism for driving the left and right wheel assemblies to move on the left and right guide rails (9).

2. The self-propelled seedling trimming machine with guide rail according to claim 1, characterized in that: The intersection of the left and right guide rails (9) and the front and rear guide rails (1) is provided with a notch (17) for the front and rear wheel assembly or the left and right wheel assembly to pass through.

3. The self-propelled seedling trimming machine with guide rail according to claim 1, characterized in that: The two front and rear wheel assemblies each include two front traveling wheels (5) and two rear traveling wheels (4), and the first drive mechanism includes a first track wheel motor (41) mounted on the frame (2) for driving the rear traveling wheels (4) to travel on the front and rear guide rails (1).

4. The self-propelled seedling trimming machine with guide rail according to claim 1, characterized in that: Both the front traveling wheel (5) and the rear traveling wheel (4) are provided with annular V-shaped grooves that cooperate with the front and rear guide rails (1).

5. A self-propelled seedling trimming machine with a guide rail according to claim 1, characterized in that: The left and right wheel assemblies respectively include an active walking wheel (6) and a driven walking wheel (7), and the second drive mechanism includes a second track wheel motor (61) for driving the active walking wheel (6) to walk on the left and right guide rails (9).

6. A self-propelled seedling trimming machine with a guide rail according to claim 5, characterized in that: Both the active walking wheel (6) and the driven walking wheel (7) are provided with annular V-shaped grooves that cooperate with the left and right guide rails (9).

7. A self-propelled seedling trimming machine with a guide rail according to claim 6, characterized in that: The lifting mechanism (8) includes an electric push rod (81) and a lifting frame (82) that is vertically slidably mounted on the frame (2). The left and right wheel assemblies are mounted at the lower end of the lifting frame (82), and the push rod end of the electric push rod (81) is connected to the lifting frame (82).

8. A self-propelled seedling trimming machine with a guide rail according to claim 7, characterized in that: The lifting frame (82) is provided with sliders (83) on the left and right sides respectively, and the frame (2) is provided with a slide rail (84) that slides with the sliders (83).

9. A self-propelled seedling trimming machine with a guide rail according to claim 1, characterized in that: The walking leaf-cutting mechanism (3) is equipped with a water tank (10), and a water pump (11) is provided on the water tank (10). The output end of the water pump (11) is connected to a medicine pipeline (12), and the input end of the water pump (11) is connected to the water tank (10) through a water inlet pipeline. The walking leaf-cutting mechanism (3) is equipped with spray pipes (16) connected to the medicine pipeline (12) on the front and rear sides of the frame (2), respectively. The medicine pipeline (12) is equipped with a solenoid valve (13).