Seeding mechanism for corn planting
By designing an automated sowing mechanism, the automatic sowing of corn seeds is achieved by using a motor-driven feeding disc and a V-shaped scraper, which solves the problem of low efficiency in manual digging and sowing, improves sowing efficiency, and reduces the burden on operators.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANZHOU JINGHAO AGRICULTURAL DEVELOPMENT CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-15
AI Technical Summary
Existing corn planting tools require manual digging of holes and planting of seeds one by one, resulting in low efficiency, and workers need to carry seeds with them, increasing their workload.
A seeding mechanism including a frame, a seeding component and a drive motor was designed. The motor drives the feed plate to rotate, automatically feeding the seeds into the soil, and the V-shaped scraper covers the soil, thus achieving automated seeding.
It improved sowing efficiency, reduced labor intensity, and decreased the workload of operators, making corn planting convenient and efficient.
Smart Images

Figure CN224234236U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of corn planting equipment, specifically a corn planting mechanism. Background Technology
[0002] Corn has a long history of cultivation in my country, dating back approximately 470 years. Due to its high yield, high quality, and strong adaptability, the planting area of corn has rapidly increased, reaching about 300 million mu (approximately 20 million hectares), ranking third among grain crops after rice and wheat. Corn-producing areas in my country are widely distributed, with significant differences in natural conditions. Therefore, planting corn requires selecting suitable varieties based on local factors such as frost period, soil texture, and fertility, and emphasizing the breeding of superior varieties and the allocation of seed fields. Corn sowing is greatly affected by temperature and humidity, and specialized sowing equipment is currently widely used.
[0003] A search revealed that patent CN210671275U discloses a corn planting tool. This tool includes: a digging rod with a tapered head that gradually decreases in size from top to bottom at its lower end; a seed guide tube fixed to the digging rod, with its lower end located on one side of the upper end of the tapered head; and a seed funnel located at the upper end of the seed guide tube. When using this tool, the operator manually inserts the tapered head of the digging rod into the field, then tilts the tapered head away from the seed guide tube to dig a planting hole. The operator then uses their other hand to drop corn seeds into the seed funnel, where the seeds fall into the planting hole through the seed guide tube.
[0004] However, the above-mentioned corn planting tools have the following shortcomings in practical applications: First, during the corn planting process, workers need to manually operate the tools to dig holes and plant seeds one by one, which is time-consuming and laborious, resulting in low efficiency; second, workers need to carry corn seeds with them, which increases their workload. Utility Model Content
[0005] This utility model provides a corn planting mechanism to solve the following problems mentioned in the background art regarding the practical application of corn planting tools: During corn planting, workers need to manually operate tools to dig holes and plant seeds one by one, which is time-consuming, labor-intensive, and inefficient. Workers also need to carry corn seeds with them, increasing their workload.
[0006] To address the existing problems, this utility model provides a sowing mechanism for corn planting, including a frame. The lower front end of the frame is connected to a front wheel via a wheel frame. A lifting arm is symmetrically arranged at the rear end of the frame. A rear wheel is rotatably connected to the lower end of the lifting arm. A limiting groove matching the lifting arm is opened at the rear end of the frame. A locking component for locking the lifting arm to slide within the limiting groove is provided on one side of the limiting groove and on the side wall of the frame. A sowing assembly inclined to the horizontal plane is fixedly connected to the upper part of the frame via a connecting block.
[0007] The sowing assembly includes a fixed plate whose bottom surface is fixedly connected to a connecting block. A material container is fixedly connected to the outer edge of the fixed plate via a connector. A material feeding disc is provided on the upper surface of the fixed plate. A rotating shaft is fixedly connected to the central axis of the material feeding disc. The lower end of the rotating shaft is rotatably connected to the center position of the fixed plate. The material feeding disc has several through holes evenly spaced around its circumference. A material discharge through hole is provided on the fixed plate. A driven gear is fixedly connected to the upper end of the rotating shaft through the upper end of the material container. A drive gear fixedly connected to the output shaft of a drive motor is meshed on one side of the driven gear. The drive motor is fixedly connected to the upper end of the material container via a mounting clip. A partition plate is provided inside the material container. An openable and closable movable cover is provided at the upper end of the material container.
[0008] When the drive motor drives the driven gear to rotate through the drive gear, it can drive the feeding disc to rotate on the fixed disc.
[0009] Furthermore, the locking component includes a locking rod slidably disposed on the side wall of the through groove. One end of the locking rod can extend into the through groove and be inserted into the insertion hole of the lifting arm. The other end of the locking rod is fixedly connected to a pull ring. A spring is sleeved on the locking rod. The two ends of the spring are respectively fixed to the outer wall of the through groove and the limiting ring. The limiting ring is fixedly connected to the outer wall of the locking rod located on the side of the pull ring.
[0010] Furthermore, the feeding through hole is located at the highest point edge of the fixed plate, and the through holes can be interconnected when the feeding plate rotates and passes through the feeding through hole.
[0011] Furthermore, the upper end of the feeding pipe is fixedly connected to the inner part of the feeding through hole, and the lower end of the feeding pipe is fixedly connected to the furrowing and sowing teeth.
[0012] Furthermore, a V-shaped scraper blade, fixedly connected to the feed pipe, is provided behind the sowing teeth, with the lower end of the scraper blade and the lower end of the furrowing sowing teeth on the same horizontal plane.
[0013] Furthermore, a battery for powering the drive motor is installed on the upper front surface of the frame.
[0014] Furthermore, the lower end of the partition plate slides in contact with the upper surface of the feeding disc, and the partition plate divides the inner cavity of the feeding cylinder into a seed storage area and an isolation area.
[0015] Furthermore, a handrail is fixedly connected to the rear end of the frame.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. This corn planting mechanism uses a drive motor to rotate the feeding disc, automatically feeding the seeds into the furrows dug by the furrowing teeth in the soil, and automatically covering the seeds with soil using a V-shaped scraper. This achieves automated planting, eliminating the tedious steps of manually digging holes and planting seeds one by one, greatly improving planting efficiency, reducing labor intensity, and making the corn planting process more convenient and efficient.
[0018] 2. This corn planting mechanism is equipped with a seed-holding cylinder. The cylinder's inner cavity is divided into a seed storage area and an isolation area by a partition plate. This ensures both seed storage and allows excess seeds above the through-holes to be scraped off by the partition plate, maintaining the correct seed quantity within the through-holes. Furthermore, operators no longer need to carry seeds, reducing their workload and improving operational comfort and convenience. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a partial structural schematic diagram of the present invention;
[0021] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;
[0022] Figure 4 This is a schematic diagram of the structure of the seeding component, feeding pipe, furrowing and seeding teeth, and V-shaped scraper of this utility model.
[0023] Figure 5 This utility model Figure 4 A bottom view;
[0024] Figure 6 This is a schematic diagram of the internal structure of the seeding component of this utility model after cross-section of the material container and the movable cover;
[0025] Figure 7 This is a schematic diagram of a portion of the seeding component of this utility model;
[0026] In the diagram: 1. Frame; 2. Front wheel; 3. Lifting arm; 301. Insertion hole; 4. Rear wheel; 5. Limiting slot; 6. Locking component; 601. Locking rod; 602. Pull ring; 603. Spring; 604. Limiting ring; 7. Connecting block; 8. Seeding assembly; 801. Fixing plate; 802. Connecting component; 803. Feeding cylinder; 8031. Seed storage area; 8032. Isolation area; 804. Feeding disc; 805. Rotating shaft; 806. Through hole; 807. Discharge through hole; 808. Driven gear; 809. Drive motor; 810. Drive gear; 811. Mounting clip; 812. Divider plate; 813. Movable cover; 9. Discharge pipe; 10. Furrowing and sowing teeth; 11. V-shaped scraper; 12. Battery. Detailed Implementation
[0027] 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.
[0028] Please see Figure 1-7 A corn planting mechanism includes a frame 1. The lower front end of the frame 1 is connected to a front wheel 2 via a wheel frame. A lifting arm 3 is symmetrically arranged at the rear end of the frame 1. A rear wheel 4 is rotatably connected to the lower end of the lifting arm 3. A limiting groove 5 matching the lifting arm 3 is opened at the rear end of the frame 1. A locking member 6 for locking the lifting arm 3 to slide within the limiting groove 5 is provided on one side of the limiting groove 5 and on the side wall of the frame 1. A planting assembly 8 that is inclined to the horizontal plane is fixedly connected to the upper part of the frame 1 via a connecting block 7.
[0029] The seeding assembly 8 includes a fixed disk 801 whose bottom surface is fixedly connected to the connecting block 7. A material container 803 is fixedly connected to the outer edge of the fixed disk 801 through a connector 802. A material feeding disk 804 is provided on the upper surface of the fixed disk 801. A rotating shaft 805 is fixedly connected to the central axis of the material feeding disk 804. The lower end of the rotating shaft 805 is rotatably connected to the center of the fixed disk 801. The material feeding disk 804 has several through holes 806 evenly spaced around its circumference. A material discharge through hole 807 is provided on the fixed disk 801. The upper end of the rotating shaft 805 passes through the upper end of the material container 803 and is fixedly connected to a driven gear 808. A drive gear 810 is meshed on one side of the driven gear 808 and is fixedly connected to the output shaft of the drive motor 809. The drive motor 809 is fixedly connected to the upper end of the material container 803 through a mounting clip 811. A partition plate 812 is provided inside the material container 803. An openable and closable movable cover 813 is provided at the upper end of the material container 803.
[0030] When the drive motor 809 drives the driven gear 808 to rotate via the drive gear 810, it can drive the material feeding disc 804 to rotate on the fixed disc 801.
[0031] It should be noted that in practical applications of the seeding mechanism, to facilitate viewing the remaining seed level inside the feeding cylinder 803, the material of the feeding cylinder 803 can be transparent, such as polycarbonate, modified PETG, high-transparency polyethylene, or acrylic. Furthermore, the diameter of the through-hole 807 is designed to be larger than that of the through-hole 806. This configuration ensures that the corn seeds have ample space to fall as they pass through the feeding through-hole 807 from the through-hole 806.
[0032] The locking component 6 includes a locking rod 601 that is slidably disposed on the side wall of the through groove 5. One end of the locking rod 601 can be inserted into the through groove 5 and connected to the insertion hole 301 of the lifting arm 3. The other end of the locking rod 601 is fixedly connected to a pull ring 602. A spring 603 is sleeved on the locking rod 601. The two ends of the spring 603 are fixed to the outer wall of the through groove 5 and the limiting ring 604, respectively. The limiting ring 604 is fixedly connected to the outer wall of the locking rod 601 located on one side of the pull ring 602.
[0033] The material feeding through hole 807 is located at the highest point edge of the fixed plate 801, and the through holes 806 can be interconnected when the feeding plate 804 rotates through the material feeding through hole 807.
[0034] The upper end of the feeding pipe 9 is fixedly connected to the inner end of the feeding through hole 807, and the lower end of the feeding pipe 9 is fixedly connected to the furrowing and sowing teeth 10.
[0035] Among them, a V-shaped scraper 11 is fixedly connected to the feed pipe 9 behind the seeding tooth 10, and the lower end of the scraper 11 is on the same horizontal plane as the lower end of the furrowing seeding tooth 10.
[0036] Among them, the upper front surface of the frame 1 is equipped with a battery 12 that supplies power to the drive motor 809.
[0037] The lower end of the partition plate 812 slides in contact with the upper surface of the feeding disc 804, and the partition plate 812 divides the inner cavity of the feeding cylinder 803 into a seed storage area 8031 and an isolation area 8032.
[0038] refer to Figure 6 , Figure 7 In the above technical solution, the lower end of the separator plate 812 slides in contact with the upper surface of the feeding disc 804, which will cause the excess seeds in the through hole 806 to be scraped off by the lower end of the separator plate 812, thereby ensuring that the number of corn kernels in the through hole 806 is constant.
[0039] The rear end of the frame 1 is fixedly connected to a handrail 13.
[0040] Working principle: Before use, first move the corn planting mechanism to the field to be planted, pull the pull ring 602 to drive the locking rod 601 to move away from the limit slide groove 5, and then the end of the locking rod 601 will slide out from the insertion hole 301 of the lifting arm 3. At this time, the lifting arm 3 can be adjusted to move upward in the limit slide groove 5. The moving lifting arm 3 will drive the rear wheel 4 to move upward. At this time, as the rear end of the frame 1 tilts downward, the furrowing and planting teeth 10 and the V-shaped scraper 11 will enter the soil surface. Subsequently, corn seeds are placed in the seed storage area 8031 of the feeding cylinder 803. Then, the hands hold the handle 13 and push the sowing mechanism forward. At the same time, the drive motor 809 is controlled by the switch to drive the drive gear 810 to rotate. The rotating drive gear 810 will drive the driven gear 808 meshing with it to rotate. The driven gear 808 will drive the rotating shaft 805 fixedly connected to it to rotate. The rotating shaft 805 will drive the feeding disc 804 to rotate on the fixed disc 801. The corn seeds in the through hole 806 in the seed storage area 8031 will be driven to the upper part of the feeding through hole 807 as the feeding disc 804 rotates. After falling into the feeding pipe 9 through the feeding through hole 807, they will fall from the bottom of the feeding pipe 9 into the trench opened by the sowing teeth 10 in the soil. Then they will be scraped and buried by the V-shaped scraper 11.
[0041] After the planting operation is completed, the locking rod 601 of the locking part 6 can be released from the restriction on the lifting arm 3, thereby adjusting the lifting arm 3 to descend within the limiting slide 5, so that the furrowing and sowing teeth 10 and the V-shaped scraper 11 rise along the rear end of the frame 1, preventing the furrowing and sowing teeth 10 and the V-shaped scraper 11 from scraping the ground when moving outside the field.
[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A corn planting mechanism, comprising a frame (1), wherein a front wheel (2) is connected to the lower front end of the frame (1) via a wheel frame, and a lifting arm (3) is symmetrically arranged at the rear end of the frame (1), wherein a rear wheel (4) is rotatably connected to the lower end of the lifting arm (3), characterized in that: The rear end of the frame (1) is provided with a limiting groove (5) that matches the lifting arm (3). A locking member (6) for locking the lifting arm (3) to slide in the limiting groove (5) is provided on one side of the limiting groove (5) and on the side wall of the frame (1). The upper part of the frame (1) is fixedly connected to a seeding assembly (8) that is inclined to the horizontal plane through a connecting block (7). The sowing assembly (8) includes a fixed disk (801) whose bottom surface is fixedly connected to a connecting block (7). A material container (803) is fixedly connected to the outer edge of the fixed disk (801) via a connector (802). A material feeding disk (804) is provided on the upper surface of the fixed disk (801). A rotating shaft (805) is fixedly connected to the central axis of the material feeding disk (804). The lower end of the rotating shaft (805) is rotatably connected to the center position of the fixed disk (801). Several through holes (806) are evenly spaced around the material feeding disk (804). The fixed disk ( A material discharge through hole (807) is opened on the shaft (801). The upper end of the shaft (805) passes through the upper end of the material container (803) and is fixedly connected to a driven gear (808). One side of the driven gear (808) is meshed with a drive gear (810) fixedly connected to the output shaft of the drive motor (809). The drive motor (809) is fixedly connected to the upper end of the material container (803) through a mounting clip (811). A partition plate (812) is provided inside the material container (803). An openable and closable movable cover (813) is provided at the upper end of the material container (803). When the drive motor (809) drives the driven gear (808) to rotate through the drive gear (810), it can drive the feeding disc (804) to rotate on the fixed disc (801).
2. The corn planting mechanism according to claim 1, characterized in that: The locking component (6) includes a locking rod (601) slidably disposed on the side wall of the through groove (5). One end of the locking rod (601) can be inserted into the through groove (5) and connected to the insertion hole (301) of the lifting arm (3). The other end of the locking rod (601) is fixedly connected to a pull ring (602). A spring (603) is sleeved on the locking rod (601). The two ends of the spring (603) are fixed to the outer wall of the through groove (5) and the limiting ring (604) respectively. The limiting ring (604) is fixedly connected to the outer wall of the locking rod (601) located on the side of the pull ring (602).
3. The corn planting mechanism according to claim 1, characterized in that: The feeding through hole (807) is located at the highest point edge of the fixed plate (801), and the through holes (806) can be interconnected when the feeding plate (804) rotates through the feeding through hole (807).
4. The corn planting mechanism according to claim 1, characterized in that: The upper end of the feeding pipe (9) is fixedly connected to the inner end of the feeding through hole (807), and the lower end of the feeding pipe (9) is fixedly connected to the furrowing and sowing teeth (10).
5. The corn planting mechanism according to claim 4, characterized in that: A V-shaped scraper (11) is fixedly connected to the feed pipe (9) behind the sowing tooth (10). The lower end of the scraper (11) is on the same horizontal plane as the lower end of the furrowing sowing tooth (10).
6. The corn planting mechanism according to claim 1, characterized in that: A battery (12) for powering the drive motor (809) is mounted on the upper front surface of the frame (1).
7. The corn planting mechanism according to claim 1, characterized in that: The lower end of the partition plate (812) slides in contact with the upper surface of the feeding plate (804), and the partition plate (812) divides the inner cavity of the feeding cylinder (803) into a seed storage area (8031) and an isolation area (8032).
8. The corn planting mechanism according to claim 1, characterized in that: The rear end of the frame (1) is fixedly connected to a handrail (13).