Rapeseed precision seeder with spacing adjustment
By using the rotation of the ring seat and the extrusion of the threaded column, the problem of the rapeseed planter being unable to quickly adjust the seed spacing was solved, achieving uniform seed drop and monitoring of the remaining amount, thus improving rapeseed planting efficiency and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI NONGGU SEED IND CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-14
AI Technical Summary
Existing rapeseed planters cannot quickly adjust the seed spacing during sowing, resulting in overly dense or sparse sowing, which affects rapeseed growth and yield.
The rotation of the ring seat and the extrusion of the threaded column enable rapid adjustment of the discharge spacing. Combined with the drive motor driving the agitator plate to move the seeds, the seeds fall evenly. The remaining seed quantity can be monitored by observing the components for replenishment.
This technology enables rapid adjustment of seed spacing during rapeseed sowing, ensuring uniform seed distribution and improving rapeseed growth quality and yield.
Smart Images

Figure CN224482131U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rapeseed planting equipment, specifically a rapeseed precision planter with easily adjustable spacing. Background Technology
[0002] Rapeseed can be sown quickly over a large area using a seeder. However, rapeseed seeds are small, and when sown using a rapeseed seeder, they are often too dense or too sparse, which can affect the later growth and yield of rapeseed. In addition, the spacing between seeds cannot be adjusted during sowing.
[0003] According to a patent document with publication number CN217445817U, a precision rapeseed sowing device includes a sowing box. Inside the sowing box, near the bottom, is a first rotating rod. Both ends of the first rotating rod are rotatably connected to bearings in the sowing box. Symmetrically fixed stirring strips are attached to the surface of the first rotating rod. One end of the first rotating rod passes through the sowing box. A first motor is located on one side of the sowing box. In use, the first motor drives the first rotating rod to rotate, which in turn drives the stirring strips to rotate. This prevents excessive seeds in the sowing box from causing blockages, thus preventing seed blockage during sowing. However, while this solution effectively avoids blockages, it cannot quickly adjust the discharge position during sowing, which is inconvenient in use. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rapeseed precision seeder with easy spacing adjustment to solve the problems mentioned in the background technology. The utility model has a novel structure. When in use, the discharge pipe drives the ring seat to rotate. The rotation of the ring seat causes the opening and the discharge position of the connecting hopper to be misaligned. The side of the ring seat seals the connecting hopper, thereby realizing the rapid adjustment of the discharge spacing position.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision rapeseed seeder with easily adjustable spacing, comprising a fixed box, a discharge box fixed to the bottom of the fixed box, a drive motor fixedly installed on the side of the discharge box, support rods welded to the bottom of the discharge box, fixed columns welded between the support rods, a seeding assembly movably installed on the fixed columns, a fixed frame fixed to the side of the fixed box, a limit rod welded to the fixed frame, a roller rotatably installed on the limit rod, an installation hole at one end of the limit rod, a cover plate movably installed on the top of the fixed box, and an observation assembly movably installed on the cover plate.
[0006] Furthermore, the observation component includes a positioning post, one end of which is welded with an extrusion plate, which is movably mounted on the inner wall of the cover plate.
[0007] Furthermore, a fixing plate is welded onto the positioning post, and a support mechanism is fixed onto the fixing plate. One end of the support mechanism is fixed to the inner wall of the cover plate, and a handle is fixed to one end of the positioning post.
[0008] Furthermore, the fixed box is rotatably mounted with fixing bolts and fixing lugs on its side, and a connecting support column is movably mounted on the fixing lugs.
[0009] Furthermore, the seeding assembly includes a ring seat, a discharge pipe is fixed to the bottom of the ring seat, and a connecting hopper is fixed to the bottom of the discharge box.
[0010] Furthermore, the ring seat is rotatably mounted on the bottom of the connecting bucket, the top of the ring seat has an opening, the ring seat has an opening, and a limit ring is fixed on the inner wall of the opening.
[0011] Furthermore, a discharge port is provided between the discharge box and the connecting hopper, and a toggle plate is rotatably installed inside the discharge port. A rotating column is fixed on the toggle plate, and one end of the rotating column is mounted on a drive motor.
[0012] Furthermore, a fixing block is fixed to the side of the connecting bucket, and a threaded column is rotatably installed on the fixing block, with one end of the threaded column moving to contact the ring seat.
[0013] The beneficial effects of this utility model are:
[0014] 1. In use, the discharge pipe drives the ring seat to rotate. The rotation of the ring seat causes the opening to be misaligned with the discharge position of the connecting hopper. The side of the ring seat seals the connecting hopper, thereby enabling rapid adjustment of the discharge spacing.
[0015] 2. In this utility model, the ring seat is squeezed by the rotation of the threaded column, and the ring seat is limited and fixed under the squeezing. The drive motor drives the actuating plate to move, and the movement of the actuating plate realizes the uniform and rapid descent of the seeds in the later stage.
[0016] 3. In this utility model, the extrusion plate moves to the top of the seeds inside the fixed box. As the seeds fall, the extrusion plate moves downward. The height exposed by the positioning post when the extrusion plate moves downward allows for a quick understanding of the remaining amount of seeds inside, facilitating the rapid addition of seeds later. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a precision rapeseed seeder with easily adjustable spacing according to the present invention;
[0018] Figure 2 This is an enlarged structural diagram of point A of a precision rapeseed seeder with easily adjustable spacing according to this utility model.
[0019] Figure 3 This is a schematic diagram of the ring seat structure of a rapeseed precision seeder with easily adjustable spacing according to the present invention;
[0020] Figure 4 This is a schematic diagram of the actuation plate of a precision rapeseed seeder with easily adjustable spacing according to the present invention.
[0021] Figure 5 This is a schematic diagram of the observation component of a precision rapeseed seeder with easily adjustable spacing, according to the present invention.
[0022] In the diagram: 1. Fixed box; 2. Discharge box; 3. Drive motor; 4. Cover plate; 5. Observation assembly; 6. Fixing bolt; 7. Fixing lug; 8. Support rod; 9. Fixing column; 10. Seeding assembly; 11. Fixing frame; 12. Limiting rod; 13. Roller; 14. Mounting hole; 15. Ring seat; 16. Discharge pipe; 17. Connecting hopper; 18. Fixing block; 19. Threaded column; 20. Opening; 21. Opening; 22. Limiting ring; 23. Rotating column; 24. Actuating plate; 25. Extrusion plate; 26. Positioning column; 27. Fixing plate; 28. Support mechanism; 29. Handle. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a precision rapeseed seeder with easily adjustable spacing, comprising a fixed box 1, a discharge box 2 fixed to the bottom of the fixed box 1, a drive motor 3 fixedly installed on the side of the discharge box 2, a support rod 8 welded to the bottom of the discharge box 2, a fixed column 9 welded between the support rods 8, a seeding assembly 10 movably installed on the fixed column 9, a fixed frame 11 fixed to the side of the fixed box 1, a limit rod 12 welded to the fixed frame 11, a roller 13 rotatably installed on the limit rod 12, an installation hole 14 at one end of the limit rod 12, a cover plate 4 movably installed on the top of the fixed box 1, an observation assembly 5 movably installed on the cover plate 4, the observation assembly 5 including a positioning column 26, a pressing plate 25 welded to one end of the positioning column 26, the pressing plate 25 movably installed on the inner wall of the cover plate 4, and the pressing plate 25 can achieve rapid descent and discharge of seeds by pressing the seeds.
[0025] In this embodiment, a fixing plate 27 is welded onto the positioning column 26, and a support mechanism 28 is fixed onto the fixing plate 27. One end of the support mechanism 28 is fixed to the inner wall of the cover plate 4, and a handle 29 is fixed to one end of the positioning column 26. A fixing bolt 6 and a fixing lug 7 are rotatably installed on the side of the fixing box 1, and a connecting support column is movably installed on the fixing lug 7. The sowing assembly 10 includes a ring seat 15, and a discharge pipe 16 is fixed to the bottom of the ring seat 15. A connecting hopper 17 is fixed to the bottom of the discharge box 2. The support mechanism 28 is a support spring. The support spring contracts and deforms after being squeezed by the fixing plate 27. After deformation, it generates a rebound force to push the extrusion plate 25 downward to extrude the seeds.
[0026] In this embodiment, the ring seat 15 is rotatably mounted on the bottom of the connecting hopper 17. The top of the ring seat 15 has an opening 20, and the ring seat 15 has an opening 21. A limit ring 22 is fixed on the inner wall of the opening 21. A discharge port is opened between the discharge box 2 and the connecting hopper 17. A toggle plate 24 is rotatably mounted inside the discharge port. A rotating column 23 is fixed on the toggle plate 24. One end of the rotating column 23 is mounted on the drive motor 3. A fixing block 18 is fixed on the side of the connecting hopper 17. A threaded column 19 is rotatably mounted on the fixing block 18. One end of the threaded column 19 moves to contact the ring seat 15. The threaded column 19 rotates on the fixing block 18. The rotation of the threaded column 19 generates a squeezing force to complete the squeezing and fixing of the ring seat 15.
[0027] Working Principle: During use, the device can be installed on the fixed hanging lug 7 via a connecting support column. One end of the connecting support column is installed on the equipment, driving the overall movement of the fixed box 1. During use, the roller 13 contacts the ground, and the roller 13 and the fixed frame 11 cooperate to support the fixed box 1. When the fixing bolt 6 is removed, it loses its restraint on the cover plate 4. The cover plate 4 is then removed upwards via the handle 29, and rapeseed seeds are poured into the fixed box 1. After the seeds enter the fixed box 1, the top of the seeds is pushed flat. After the seeds are flattened, the cover plate 4 is installed back onto the fixed box 1. After installation, the bottom of the pressing plate 25 contacts the top of the seeds, pushing the pressing plate 25 upwards. After the pressing plate 25 moves upwards, the fixed plate 27 on the positioning column 26 pushes the support mechanism 28 to retract. The retraction of the support mechanism 28 generates a rebound force. When the seeds fall downwards, the drive motor 3 drives the rotating column 23 and the lever... The rotating plate 24 facilitates the rapid entry of seeds into the connecting hopper 17. The seeds fall through the connecting hopper 17 into the opening 20. The fixed column 9 has a connecting hole, through which the seeds fall from the discharge pipe 16. When it is necessary to adjust the seed drop spacing, the threaded column 19 is rotated to remove the pressure on the ring seat 15. After the ring seat 15 rotates on the fixed column 9, the opening 20 is misaligned with the connecting hopper 17 and the connecting hole on the fixed column 9. After the misalignment, the seeds are confined inside the connecting hopper 17 by the ring seat 15, thus completing the adjustment of the sowing position. As the seeds fall, the pressing plate 25 moves downward, pushing the seeds out. In addition, as the pressing plate 25 descends, the positioning column 26 and the handle 29 move downward. The height of the handle 29 exposed can quickly indicate the remaining amount of seeds inside the fixed box 1, thus facilitating the rapid replenishment of seeds later.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A rapeseed precision seeder with easily adjustable spacing, comprising a fixed box (1), characterized in that: The bottom of the fixed box (1) is fixed with a discharge box (2), and a drive motor (3) is fixedly installed on the side of the discharge box (2). A support rod (8) is welded to the bottom of the discharge box (2), and a fixed column (9) is welded between the support rods (8). A seeding component (10) is movably installed on the fixed column (9). A fixed frame (11) is fixed to the side of the fixed box (1), and a limit rod (12) is welded to the fixed frame (11). A roller (13) is rotatably installed on the limit rod (12), and an installation hole (14) is opened at one end of the limit rod (12). A cover plate (4) is movably installed on the top of the fixed box (1), and an observation component (5) is movably installed on the cover plate (4).
2. The rapeseed precision seeder with easily adjustable spacing according to claim 1, characterized in that: The observation component (5) includes a positioning post (26), one end of which is welded with an extrusion plate (25), which is movably mounted on the inner wall of the cover plate (4).
3. A rapeseed precision seeder with easily adjustable spacing according to claim 2, characterized in that: A fixing plate (27) is welded onto the positioning post (26), and a support mechanism (28) is fixed onto the fixing plate (27). One end of the support mechanism (28) is fixed to the inner wall of the cover plate (4), and a handle (29) is fixed to one end of the positioning post (26).
4. A rapeseed precision seeder with easily adjustable spacing as described in claim 1, characterized in that: The fixed box (1) is rotatably mounted with a fixing bolt (6) and a fixing lug (7), and a connecting support column is movably mounted on the fixing lug (7).
5. A rapeseed precision seeder with easily adjustable spacing according to claim 1, characterized in that: The seeding assembly (10) includes a ring seat (15), a discharge pipe (16) is fixed to the bottom of the ring seat (15), and a connecting hopper (17) is fixed to the bottom of the discharge box (2).
6. A rapeseed precision seeder with easily adjustable spacing according to claim 5, characterized in that: The ring seat (15) is rotatably mounted on the bottom of the connecting bucket (17). The top of the ring seat (15) has an opening (20), and the ring seat (15) has an opening (21). A limit ring (22) is fixed on the inner wall of the opening (21).
7. A rapeseed precision seeder with easily adjustable spacing as described in claim 5, characterized in that: A discharge port is provided between the discharge box (2) and the connecting hopper (17). A toggle plate (24) is rotatably installed inside the discharge port. A rotating column (23) is fixed on the toggle plate (24). One end of the rotating column (23) is installed on the drive motor (3).
8. A rapeseed precision seeder with easily adjustable spacing according to claim 5, characterized in that: A fixing block (18) is fixed to the side of the connecting bucket (17), and a threaded column (19) is rotatably installed on the fixing block (18). One end of the threaded column (19) is in contact with the ring seat (15).