A corn planter with adjustable row spacing
By designing a corn planter with adjustable plant spacing and employing technologies such as electric push rods and servo motors, the corn planter has achieved flexible adjustment and uniform sowing, solving the problems of adaptability and cumbersome operation process of traditional corn planters, and improving sowing efficiency and crop growth quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional corn planters have fixed plant spacing, which cannot be adjusted flexibly, have poor adaptability, cumbersome operation process, uneven watering, and affect crop growth quality and yield.
An adjustable corn planter was designed, which uses an electric push rod to adjust the spacing of the movable plates and integrates functions of opening holes, sowing, covering and watering. A servo motor and a spiral feeding slurry ensure uniform seed delivery and watering, and a backfilling plate covers the seeds.
It improves the adaptability and flexibility of the seeder, simplifies the operation process, ensures the accuracy and uniformity of sowing, and enhances the emergence rate and crop growth quality.
Smart Images

Figure CN224482130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corn planting technology, specifically a corn planter with adjustable plant spacing. Background Technology
[0002] As an important food crop in my country, the level of mechanization in corn planting directly affects agricultural production efficiency. Currently, mechanized equipment is widely used for corn planting operations. However, with the increasing demand for precision planting in modern agriculture (such as density requirements for different corn varieties, promotion of intercropping and relay cropping patterns, and adaptability to hilly terrain), the limitations of traditional seeders in terms of plant spacing adjustment flexibility, functional integration, and operational precision are becoming increasingly apparent.
[0003] In traditional corn planting operations, fixed-spacing planters are typically used. These planters have a relatively simple structure, mainly consisting of a frame, storage box, and planting device. Their working principle involves sowing through fixed-spacing seed heads, making operation simple but lacking flexibility. However, fixed-spacing planters have several shortcomings in practical applications: First, they cannot adjust the plant spacing according to the needs of different crops and planting environments, resulting in poor adaptability; second, the operation process is cumbersome, usually requiring multiple devices to complete steps such as hole making, sowing, covering, and watering, increasing labor intensity and production costs; third, uneven watering and unstable seed delivery lead to uneven emergence, affecting crop growth quality and yield. Utility Model Content
[0004] The purpose of this invention is to provide a corn planter with adjustable plant spacing to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a corn planter with adjustable plant spacing, comprising a frame, a storage box, and a water tank. L-shaped connecting frames are installed on both sides of one end of the frame. A supporting crossbeam is installed between the tops of the two L-shaped connecting frames, and movable plates are arranged side-by-side on the supporting crossbeam. An electric push rod is installed on the side wall of the supporting crossbeam on one side of each movable plate. The output end of each electric push rod is fixedly connected to the side wall of each movable plate. A perforated wheel is installed on one side of each movable plate via a U-shaped frame, and a seeding head is provided on the other side of the movable plate. A spray nozzle is installed on the outer side of the seeding head via a clamp.
[0006] A storage box is provided on the top of the vehicle frame, and a water tank is installed on the top of the vehicle frame below the storage box. A water pump is installed on the top of the water tank, and a distribution pipe is connected to the output end of the water pump. Water delivery hoses corresponding to each nozzle are evenly arranged at the bottom of the distribution pipe. A feeding pipe is installed at the bottom of the storage box, and a distributing pipe is provided at the output end of the feeding pipe. A distributing hose corresponding to each seeding head is evenly arranged at the bottom of the distributing pipe.
[0007] As a further technical solution of this utility model, the inner space of the movable card plate is greater than the width of the supporting beam, and a roller is installed on the top of the inner side of each movable card plate.
[0008] As a further technical solution of this utility model, a controller is provided on one side of the storage box, and a seed bin is provided inside the storage box. The output end of the seed bin is connected to the input end of the feeding pipe, and a top cover is hinged to the top of the storage box at the opening of the seed bin.
[0009] As a further technical solution of this utility model, a servo motor is installed at one end of the feeding pipe, and the output end of the servo motor extends into the interior of the feeding pipe and is equipped with a spiral feeding slurry.
[0010] As a further technical solution of this utility model, the bottom of the inner side of the material distribution pipe is uniformly provided with diversion hoppers, and the input end of each feeding hose is connected to each diversion hopper in a one-to-one correspondence.
[0011] As a further technical solution of this utility model, a backfilling plate is provided on one side of the seeding head, and the height of the backfilling plate is lower than the height of the perforating wheel.
[0012] As a further technical solution of this utility model, a battery box is installed on the top of the vehicle frame on one side of the storage box, and a storage battery is installed inside the battery box.
[0013] This utility model relates to a corn planter with adjustable plant spacing, which has significant advantages and positive effects compared with the prior art, specifically reflected in the following aspects:
[0014] 1. The main body of this utility model's seeder is divided into four independent sowing modules, each with its distance adjustable individually via an electric push rod. This allows the seeder to flexibly adjust the plant spacing according to different planting needs, greatly improving the adaptability and flexibility of sowing. Compared to existing seeders with fixed plant spacing, this utility model better meets the needs of different crops and planting environments, significantly improving sowing efficiency and quality. The use of an electric push rod for plant spacing adjustment is simple and quick, reducing the time and labor intensity of manual adjustments and improving operational efficiency.
[0015] 2. This utility model integrates multiple functions such as hole making, sowing, covering, and watering, simplifying the operation process, reducing operational steps, and lowering labor intensity and production costs. Compared with the complex operation of existing technologies that require multiple devices to complete these functions separately, this utility model significantly improves operation efficiency and quality. Through the cooperation of the hole-making wheel on the movable plate and the sowing head, hole making and sowing are carried out simultaneously, ensuring the accuracy and consistency of sowing and improving the germination rate.
[0016] 3. The design of the water tank, water pump, and distribution pipe ensures that each sprinkler head can supply water evenly, avoiding uneven seedling emergence caused by uneven watering. Compared with the uneven watering in existing technologies, this invention significantly improves crop growth quality and yield. The water delivery hose connected to each sprinkler head ensures uniform water distribution, further enhancing the watering effect.
[0017] 4. A servo motor and spiral feed slurry installed at one end of the feeding pipe ensure uniform seed delivery, preventing blockages and feed interruptions, and improving the continuity and stability of sowing. Evenly spaced diversion hoppers at the bottom of the inner side of the distribution pipe ensure that each feeding hose receives seeds uniformly, further guaranteeing sowing uniformity. A backfilling plate on one side of the sowing head allows for timely soil covering after sowing, protecting the seeds and promoting germination. The height of the backfilling plate is lower than the height of the perforated wheel, ensuring uniform and effective covering. Attached Figure Description
[0018] Figure 1 This is a side view of the structure of this utility model;
[0019] Figure 2 This is a side view of the seeding rack of this utility model;
[0020] Figure 3 This is a top view of the seeding rack of this utility model;
[0021] Figure 4 This is a schematic diagram of the feeding pipe and distributing pipe of this utility model.
[0022] In the diagram: 1. Water pump; 2. Servo motor; 3. Water tank; 4. Seed bin; 5. Storage box; 6. Feeding pipe; 7. Distribution pipe; 8. Movable clamp; 9. Distributing pipe; 10. Feeding hose; 11. Water supply hose; 12. Seeding head; 13. Sprayer; 14. Support beam; 15. Perforated wheel; 16. L-shaped connecting frame; 17. Battery box; 18. Battery; 19. Frame; 20. Clamp; 21. Backfilling plate; 22. Roller; 23. U-shaped frame; 24. Diverting hopper; 25. Spiral feed slurry; 26. Electric push rod; 27. Controller. Detailed Implementation
[0023] 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 protection scope of the present utility model.
[0024] Please see Figure 1-4 An embodiment of this utility model provides a corn planter with adjustable plant spacing, including a frame 19, a storage box 5 and a water tank 3. L-shaped connecting frames 16 are installed on both sides of one end of the frame 19. A support beam 14 is installed between the tops of the two L-shaped connecting frames 16, and movable plates 8 are arranged side by side on the support beam 14. The inner space of the movable plates 8 is larger than the width of the support beam 14, and a roller 22 is installed on the top of the inner side of each movable plate 8.
[0025] Each movable pallet 8 has an electric push rod 26 installed on the side wall of the supporting beam 14 on one side, and the output end of each electric push rod 26 is fixedly connected to the side wall of each movable pallet 8.
[0026] The frame 19 serves as the supporting foundation for the entire equipment, and its material is preferably high-strength steel to ensure stability and durability during field operations. The storage box 5, located in the middle of the frame 19, is used to store corn seeds, and its volume can be designed according to actual needs. The water tank 3, located below the storage box 5, is used to store irrigation water, and its capacity can also be adjusted according to actual needs.
[0027] An L-shaped connecting bracket 16 is installed on each side of one end of the frame 19. The L-shaped connecting bracket 16 is preferably made of stainless steel to prevent rusting due to the humid environment during field operations. A support beam 14 is bolted between the top ends of the two L-shaped connecting brackets 16. The support beam 14 is also preferably made of high-strength steel to ensure its load-bearing capacity.
[0028] Several movable plates 8 are arranged side by side on the support beam 14. The inner space of each movable plate 8 is larger than the width of the support beam 14 to ensure that the movable plate 8 can slide freely on the support beam 14. A roller 22 is installed on the top inner side of each movable plate 8. The roller 22 is preferably made of wear-resistant rubber to reduce friction during sliding and extend its service life.
[0029] An electric push rod 26 is installed on the side wall of the support beam 14 on one side of each movable plate 8, such as... Figure 4As shown. The output end of the electric actuator 26 is fixedly connected to the side wall of each movable clamping plate 8 by bolts. The drive power source for the electric actuator 26 is preferably an on-board battery to ensure continuous power supply during field operations. The stroke and thrust of the electric actuator 26 can be selected according to actual needs to ensure that the movable clamping plate 8 can move smoothly on the support beam 14.
[0030] When it is necessary to adjust the plant spacing of the corn planter, the operator can activate the electric push rod 26 via the control panel. The output end of the electric push rod 26 pushes the movable plates 8 to slide on the support beam 14, thereby changing the distance between the movable plates 8. Since each movable plate 8 has a roller 22 installed on its inner top, the friction during sliding is small, ensuring the smoothness and accuracy of the adjustment process.
[0031] A perforated wheel 15 is installed on one side of the movable plate 8 via a U-shaped frame 23, and a seeding head 12 is provided on the other side of the movable plate 8. A spray head 13 is installed on the outside of the seeding head 12 via a clamp 20.
[0032] A backfilling plate 21 is provided on one side of the seeding head 12, and the height of the backfilling plate 21 is lower than the height of the perforating wheel 15.
[0033] Movable plate 8: As the basic component of the entire device, the movable plate 8 is made of high-strength material to ensure its stability and durability during use.
[0034] U-shaped frame 23: The U-shaped frame 23 is fixed to one side of the movable clamping plate 8 and is used to install the perforated wheel 15. The design of the U-shaped frame 23 enables it to firmly support the perforated wheel 15 and maintain its stable operation during operation.
[0035] Perforation wheel 15: The perforation wheel 15 is mounted on one side of the movable clamping plate 8 via a U-shaped frame 23. The surface of the perforation wheel 15 is provided with multiple perforation blades to ensure that it can penetrate deep into the soil during operation to make seeding holes in the soil.
[0036] Seeding head 12: The seeding head 12 is located on the other side of the movable card plate 8 and is used to accurately sow seeds into the seeding holes opened by the perforating wheel 15.
[0037] Clamp 20: Clamp 20 is used to secure the nozzle 13 to the outside of the seed head 12. The design of clamp 20 enables it to firmly secure the nozzle 13 and prevent it from loosening during operation.
[0038] Sprayer head 13: Sprayer head 13 is installed on the outside of the seed head 12 via clamp 20, and is used to spray water on the seeds after sowing to ensure the germination rate. The spray angle and flow rate of spray head 13 can be adjusted according to actual needs.
[0039] Backfilling plate 21: The backfilling plate 21 is set on one side of the seed head 12 and is used to backfill soil into the seed hole. The height of the backfilling plate 21 is lower than the height of the perforating wheel 15 to ensure that the backfilling plate 21 can backfill the soil into the seed hole in a timely manner after the perforating wheel 15 has been in operation.
[0040] A storage box 5 is installed on the top of the frame 19. A controller 27 is installed on one side of the storage box 5, and a seed bin 4 is installed inside the storage box 5. The output end of the seed bin 4 is connected to the input end of the feeding pipe 6. A top cover is hinged to the top of the storage box 5 at the opening of the seed bin 4. A battery box 17 is installed on the top of the frame 19 on one side of the storage box 5, and a battery 18 is installed inside the battery box 17.
[0041] The storage box 5 is mounted on top of the frame 19 and is made of corrosion-resistant plastic or metal with good sealing performance. A controller 27 is located on one side of the storage box 5.
[0042] The storage box 5 has a seed bin 4 inside. The output end of the seed bin 4 is connected to the input end of the feeding pipe 6, ensuring that the seeds can smoothly enter the feeding pipe 6. The top of the storage box 5 at the opening of the seed bin 4 is hinged with a top cover, which is easy for the user to open and close to add or replace seeds.
[0043] A battery box 17 is mounted on the top of the frame 19 on one side of the storage box 5. The battery box 17 is made of fire-resistant and waterproof plastic, providing excellent safety performance. Inside the battery box 17 is a storage battery 18, which is a high-performance lithium-ion battery with advantages such as large capacity, light weight, and fast charging speed, providing a continuous and stable power supply for the entire device.
[0044] A water tank 3 is installed on the top of the frame 19 below the storage box 5, and a water pump 1 is installed on the top of the water tank 3. The output end of the water pump 1 is connected to a distribution pipe 7. The bottom of the distribution pipe 7 is evenly provided with water delivery hoses 11 that are connected to each nozzle 13. A feeding pipe 6 is installed at the bottom of the storage box 5. A distribution pipe 9 is provided at the output end of the feeding pipe 6. A servo motor 2 is installed at one end of the feeding pipe 6, and the output end of the servo motor 2 extends into the interior of the feeding pipe 6 and is equipped with a spiral feeding slurry 25.
[0045] The bottom of the distribution pipe 9 is evenly provided with feeding hoses 10 that are connected to each seeding head 12.
[0046] Diverting hoppers 24 are evenly arranged on the bottom of the inner side of the feeding pipe 9, and the input end of each feeding hose 10 is connected to each diverting hopper 24 in a one-to-one correspondence.
[0047] The water tank 3 is fixed to the top of the frame 19 and secured by bolts or other fasteners.
[0048] Water pump 1 is installed on top of water storage tank 3, and the input end of water pump 1 is immersed in the interior of water storage tank 3 to ensure effective water extraction.
[0049] The distribution pipe 7 is connected to the output end of the water pump 1 via a pipe, and extends along the length of the frame 19. Multiple water delivery hoses 11 are evenly arranged at the bottom of the distribution pipe 7, and the end of each water delivery hose 11 is connected to a nozzle 13 to ensure that water is evenly distributed to each nozzle.
[0050] A feeding pipe 6 is installed at the bottom of the storage tank 5, and one end of the feeding pipe 6 is connected to the discharge port of the storage tank 5. A servo motor 2 is installed at one end of the feeding pipe 6, and the output shaft of the servo motor 2 extends into the interior of the feeding pipe 6. A spiral feeding slurry 25 is installed on the output shaft to push the material in the storage tank 5 to the feeding pipe 6.
[0051] The distribution pipe 9 is connected to the output end of the feeding pipe 6, and extends along the length of the frame 19. Multiple feeding hoses 10 are evenly arranged at the bottom of the distribution pipe 9, and the end of each feeding hose 10 is connected to a seeding head 12 to ensure that the material is evenly distributed to each seeding head.
[0052] Diverting hoppers 24 are evenly arranged on the inner bottom of the distribution pipe 9. The outlet of each diverting hopper 24 is connected to the inlet of a feeding hose 10 in a one-to-one correspondence, ensuring that the material can be evenly distributed to each feeding hose.
[0053] Working principle: During use, the target plant spacing value is input on the controller 27 interface according to planting needs. After receiving the signal, the electric push rod 26 drives the movable plate 8 to slide on the support beam 14. The rollers 22 guide and reduce friction until the spacing of the movable plate 8 reaches the preset value.
[0054] The seeder is started and driven to the field. The perforating wheel 15 moves synchronously with the movable clamping plate 8, and the perforating blades on its surface rotate to create sowing holes in the soil. Seeds in the storage box 5 are conveyed through the feeding pipe 6, and the servo motor 2 drives the spiral feeding slurry 25 to rotate, pushing the seeds to the distribution pipe 9. The diversion hopper 24 inside the distribution pipe 9 evenly distributes the seeds to each feeding hose 10, and finally the seed head 12 accurately puts them into the holes made by the perforating wheel 15. The backfilling plate 21 moves synchronously with the seed head 12, and its height is lower than that of the perforating wheel 15. It backfills and covers the soil behind the sowing holes to form a soil-covered ridge surface, ensuring that the seeds are in close contact with the soil. After the seed head 12 completes the sowing, the spray head 13 is fixed to its outside by the clamp 20. The water pump 1 delivers water from the water storage tank 3 through the distribution pipe 7 and the water delivery hose 11 to the spray head 13 to spray the seeds quantitatively.
[0055] If it is necessary to change the plant spacing during operation (such as switching plots or varieties), the parameters can be modified directly on the controller 27. The electric push rod 26 will immediately drive the movable plate 8 to slide. During the adjustment process, the roller 22 will maintain smooth guidance and quickly complete the adjustment of the entire module.
[0056] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A corn planter with adjustable plant spacing, comprising a frame (19), a storage box (5), and a water tank (3), characterized in that: L-shaped connecting frames (16) are installed on both sides of one end of the frame (19). A support beam (14) is installed between the tops of the two L-shaped connecting frames (16). Movable plates (8) are arranged side by side on the support beam (14). An electric push rod (26) is installed on the side wall of the support beam (14) on one side of each movable plate (8). The output end of each electric push rod (26) is fixedly connected to the side wall of each movable plate (8). A perforated wheel (15) is installed on one side of the movable plate (8) through a U-shaped frame (23). A seeding head (12) is provided on the other side of the movable plate (8). A spray head (13) is installed on the outside of the seeding head (12) through a clamp (20). A storage box (5) is provided on the top of the frame (19). A water tank (3) is installed on the top of the frame (19) below the storage box (5). A water pump (1) is installed on the top of the water tank (3). A distribution pipe (7) is connected to the output end of the water pump (1). A water delivery hose (11) is evenly arranged at the bottom of the distribution pipe (7) and is connected to each nozzle (13). A feeding pipe (6) is installed at the bottom of the storage box (5). A distribution pipe (9) is provided at the output end of the feeding pipe (6). A feeding hose (10) is evenly arranged at the bottom of the distribution pipe (9) and is connected to each seeding head (12).
2. The corn planter with adjustable plant spacing according to claim 1, characterized in that: The inner space of the movable plate (8) is greater than the width of the supporting beam (14), and each movable plate (8) is equipped with a roller (22) on the top of its inner side.
3. The corn planter with adjustable plant spacing according to claim 1, characterized in that: A controller (27) is provided on one side of the storage box (5), and a seed bin (4) is provided inside the storage box (5). The output end of the seed bin (4) is connected to the input end of the feeding pipe (6). A top cover is hinged to the top of the storage box (5) at the opening of the seed bin (4).
4. The corn planter with adjustable plant spacing according to claim 1, characterized in that: A servo motor (2) is installed at one end of the feeding pipe (6), and the output end of the servo motor (2) extends into the inside of the feeding pipe (6) and is equipped with a spiral feeding slurry (25).
5. A corn planter with adjustable plant spacing according to claim 1, characterized in that: The bottom of the inner side of the material distribution pipe (9) is uniformly provided with diversion hoppers (24), and the input end of each feeding hose (10) is connected to each diversion hopper (24) in a one-to-one correspondence.
6. A corn planter with adjustable plant spacing according to claim 1, characterized in that: A backfilling plate (21) is provided on one side of the seeding head (12), and the height of the backfilling plate (21) is lower than the height of the perforating wheel (15).
7. A corn planter with adjustable plant spacing according to claim 1, characterized in that: A battery box (17) is installed on the top of the frame (19) on one side of the storage box (5), and a battery (18) is installed inside the battery box (17).