Profiling corn planter

By designing a filter structure and feeding adjustment mechanism for a contour-following corn planter, the problem of low seed survival rate caused by manual seed selection was solved, achieving automatic screening and sowing and improving sowing efficiency.

CN223968255UActive Publication Date: 2026-03-06SUZHOU XINDE MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing corn planters require manual seed selection, resulting in low seed survival rates and cumbersome operation.

Method used

A contour-following corn planter was designed, which includes a filtering structure and a mechanism for adjusting the feeding speed. It automatically selects and plants seeds by using a vibrator to screen the seeds and adjusts the feeding gap.

Benefits of technology

It enables automatic seed selection and sowing, improves the survival rate of seeds, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a profiling corn planter, and belongs to the technical field of planters. The device mainly comprises a holding handle and a connecting shaft fixedly installed in the middle of the lower end of the holding handle, a containing structure is fixedly installed in the middle of the upper end of a ditching structure, a filtering structure is movably installed in an inner cavity of the upper end of the containing structure in a limiting mode, and one end of the inner cavity of the containing structure is in threaded connection with a feeding structure. Seeds enter the filter screen plate to be screened, the filter screen plate is driven by the vibrator to vibrate, so that the seeds with different sizes are filtered, and after the screened seeds enter the bottom of the hollow inclined block, due to the fact that the hollow inclined block is obliquely arranged, the seeds can directly pass through the semi-open groove and the through groove to be discharged; therefore, seed screening and sowing are completed, and use is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of seeding machine technology, specifically a contour-following corn seeder. Background Technology

[0002] A contour-following corn planter is a device used to sow corn in the ground to achieve the planting effect. It can complete the processes of furrowing, sowing, and covering with soil in one go, which improves planting efficiency compared to manual sowing.

[0003] For example, patent CN219938917U discloses an agricultural corn planter. It includes a planter body, a rotating shaft, wheels, a trough, a planting cone, a fixed shaft, and a fixing assembly. This design solves the problem that corn planters cannot adjust the planting depth according to usage needs, and also addresses the issue that the rotating shaft, wheels, and planting cone of a corn planter are fixed, preventing users from quickly replacing the wheels and planting cone.

[0004] When using the aforementioned agricultural corn planter, manual sowing is required. The corn seeds purchased usually contain seeds of varying sizes. Seed size is closely related to seed germination, emergence, and seedling growth. Seeds of uniform size generally have better emergence after sowing, especially small seeds. Because of their small size, they absorb water and expand in a shorter time, germinate quickly, have less resistance to germination, and their seedlings may grow better than those of large seeds. Therefore, in order to improve the survival rate of sowing and planting, preliminary selection by hand is usually required, which is quite troublesome.

[0005] Therefore, we proposed a contour-following corn planter to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a contour-following corn planter to solve the problem mentioned in the background art that in order to improve the survival rate of sowing and planting, it is usually necessary to manually perform preliminary selection, which is quite troublesome.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a contoured corn planter, comprising a handle and a connecting shaft fixedly installed at the lower middle of the handle, with compaction structures fixedly installed at both ends of the connecting shaft, and furrowing structures fixedly installed at both ends of the middle of the connecting shaft, a receiving structure fixedly installed at the upper middle of the furrowing structure, a filter structure movablely installed in the upper inner cavity of the receiving structure, a feeding structure threadedly connected to one end of the inner cavity of the receiving structure, and a vibrator fixedly installed on one side of the outer wall of the receiving structure;

[0008] The filter structure includes a filter screen and connecting circular grooves respectively opened at the four upper corners of the filter screen.

[0009] Furthermore, the compaction structure includes a first concave block and a soil-covering roller movably installed in the middle of the inner cavity of the first concave block.

[0010] Furthermore, the grooving structure includes a second concave block and a grooving roller movably installed in the middle of the inner cavity of the second concave block.

[0011] Furthermore, the receiving structure includes a hollow inclined block and an entry groove formed in the middle of the upper end of the hollow inclined block. An intercepting plate is fixedly installed on one side of the inner wall of the entry groove. A threaded groove is formed in the middle of one side of the upper end of the hollow inclined block. Guide grooves are formed on both sides of the lower end of the inner wall of the hollow inclined block.

[0012] Furthermore, a semi-open groove is provided in the middle of one side of the lower end of the hollow inclined block, and a through groove is provided in the middle of the inner cavity of the semi-open groove. A connecting block is fixedly installed on both sides of the lower end of one side of the intercepting plate, and a threaded short rod is fixedly installed on both sides of the upper end of the connecting block.

[0013] Furthermore, the feeding structure includes a compaction disc and a lifting block fixedly installed in the middle of the upper end of the compaction disc, and guide blocks are fixedly installed on both sides of the lower end of the outer wall of the lifting block respectively;

[0014] A bearing is fixedly installed at the upper middle part of the lifting block, and a threaded long rod is fixedly installed in the inner cavity of the bearing. A dome cone is fixedly installed at the lower end of the compaction disc.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The corn planter provided in this application uses a combination of hollow inclined blocks, filter screens, vibrators, semi-open grooves and through grooves to filter seeds of different sizes, automatically complete seed selection and sowing, and is easy to use.

[0017] 2. The corn planter provided in this application uses a combination of a threaded groove, a threaded rod, a lifting block, a compaction disc, and a domed cone to change the gap between the seeds and the material passing through the through groove, thereby adjusting the feeding speed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the accommodating structure of this utility model;

[0020] Figure 3 For the present utility model Figure 2 Enlarged view of point A;

[0021] Figure 4 For the present utility model Figure 2Enlarged view of point B.

[0022] In the diagram: 1. Handle; 2. Connecting shaft; 3. Compaction structure; 301. First concave block; 302. Covering roller; 4. Trenching structure; 401. Second concave block; 402. Trenching roller; 5. Receiving structure; 501. Hollow inclined block; 502. Inlet groove; 503. Interceptor plate; 504. Threaded groove; 509. Guide groove; 505. Semi-grooved; 506. Through groove; 507. Connecting block; 508. Threaded short rod; 6. Filtering structure; 601. Filter screen; 602. Connecting circular groove; 7. Feeding structure; 701. Compaction disc; 702. Lifting block; 703. Guide block; 704. Bearing; 705. Threaded long rod; 706. Dome cone; 8. Vibrator. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0025] like Figure 1 As shown, a contoured corn planter includes a handle 1 and a connecting shaft 2 fixedly installed at the lower middle part of the handle 1. Compacting structures 3 are fixedly installed at both ends of the connecting shaft 2, and furrowing structures 4 are fixedly installed at both ends of the middle part of the connecting shaft 2. A receiving structure 5 is fixedly installed at the upper middle part of the furrowing structure 4. A filter structure 6 is movably installed in the upper inner cavity of the receiving structure 5. The filter structure 6 filters and screens seeds of different sizes.

[0026] The inner cavity of the receiving structure 5 is threadedly connected to a feeding structure 7 at one end, and a vibrator 8 is fixedly installed on one side of the outer wall of the receiving structure 5. The vibrator 8 is configured to vibrate and feed the filter structure 6 installed in the inner cavity of the receiving structure 5.

[0027] Vibrator 8 is a current technology and is not limited here. It can be installed by purchasing finished products from the market, such as the GT-04 / 006 / 08 series vibrators.

[0028] A docking block 507 is fixedly installed on both sides of the lower end of one side of the interceptor plate 503, and a threaded short rod 508 is fixedly installed on both sides of the upper end of the docking block 507.

[0029] like Figure 4 As shown, the filter structure 6 includes a filter screen plate 601 and connecting circular grooves 602 respectively opened at the four corners of the upper end of the filter screen plate 601. The threaded short rod 508 is movably installed in the inner cavity of the connecting circular groove 602. The upper and lower ends of the threaded short rod 508 are respectively threaded with limit nuts, and the filter screen plate 601 is limited and movable by a set of limit nuts.

[0030] The compaction structure 3 includes a first concave block 301 and a soil covering roller 302 movably installed in the middle of the inner cavity of the first concave block 301.

[0031] The grooving structure 4 includes a second concave block 401 and a grooving roller 402 movably installed in the middle of the inner cavity of the second concave block 401.

[0032] In this application, corn seeds are poured into the inner cavity of the hollow inclined block 501, allowing them to enter the filter screen plate 601 for screening. The vibrator 8 drives the filter screen plate 601 to vibrate, thereby filtering seeds of different sizes. After the screened seeds enter the bottom of the hollow inclined block 501, due to the inclined setting of the hollow inclined block 501 itself, the seeds will be directly fed through the semi-open groove 505 and the through groove 506, thus completing the screening and sowing of seeds, which is convenient to use.

[0033] like Figure 2 As shown, the receiving structure 5 includes a hollow inclined block 501 and an entry groove 502 opened in the middle of the upper end of the hollow inclined block 501. An intercepting plate 503 is fixedly installed on one side of the inner wall of the entry groove 502. The intercepting plate 503 is set to prevent the seeds from falling directly into the inner cavity of the hollow inclined block 501.

[0034] A threaded groove 504 is provided in the middle of one side of the upper end of the hollow inclined block 501. A semi-open groove 505 is provided in the middle of one side of the lower end of the inner cavity of the hollow inclined block 501. A through groove 506 is provided in the middle of the inner cavity of the semi-open groove 505. The compaction disc 701 drives the dome cone 706 to be movably installed in the inner cavities of the semi-open groove 505 and the through groove 506 respectively. When the compaction disc 701 is in complete contact with the semi-open groove 505, the through groove 506 is completely sealed.

[0035] The through groove 506 is designed with an arc edge to facilitate the entry of seeds into the semi-open groove 505 for feeding.

[0036] like Figure 3As shown, the feeding structure 7 includes a compaction disc 701 and a lifting block 702 fixedly installed in the middle of the upper end of the compaction disc 701. Guide blocks 703 are fixedly installed on both sides of the lower end of the outer wall of the lifting block 702. Guide grooves 509 are respectively opened on both sides of the lower end of the inner wall of the hollow inclined block 501. The guide blocks 703 are slidably installed in the inner cavity of the guide grooves 509 to guide the compaction disc 701 to move up and down.

[0037] A bearing 704 is fixedly installed at the upper middle part of the lifting block 702. A threaded long rod 705 is fixedly installed in the inner cavity of the bearing 704. A dome cone 706 is fixedly installed at the lower end of the compaction disc 701. The threaded long rod 705 is threadedly connected to the inner cavity of the threaded groove 504 to drive the compaction disc 701, the lifting block 702, and the dome cone 706 to move upward.

[0038] In this application, by rotating the threaded rod 705 threadedly connected to the inner cavity of the threaded groove 504, the lifting block 702, the compaction disc 701 and the dome cone 706 are moved. By adjusting the position of the dome cone 706 in the inner cavity of the through groove 506, the gap of the seed passing through the through groove 506 is changed, thereby adjusting the feeding speed.

[0039] In summary: By pouring corn seeds into the inner cavity of the hollow inclined block 501, the seeds enter the filter screen plate 601 for screening. The vibrator 8 drives the filter screen plate 601 to vibrate, filtering seeds of different sizes. By rotating the threaded rod 705, which is threadedly connected to the inner cavity of the threaded groove 504, the lifting block 702, the compaction disc 701, and the dome cone 706 are moved. By adjusting the position of the dome cone 706 in the inner cavity of the through groove 506, the gap between the seeds and the through groove 506 is changed, thereby adjusting the feeding speed.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A profiled corn seeder, comprising a holding handle (1) and a connecting shaft (2) fixedly installed at the middle of the lower end of the holding handle (1), both ends of the connecting shaft (2) are fixedly installed with a compaction structure (3), and the middle of the connecting shaft (2) is fixedly installed with a furrowing structure (4), characterized in that: The upper end of the ditching structure (4) is fixedly provided with a containing structure (5), the upper end of the containing structure (5) is movably provided with a filtering structure (6), one end of the inner cavity of the containing structure (5) is threadedly connected with a feeding structure (7), and one side of the outer wall of the containing structure (5) is fixedly provided with a vibrator (8). The filtering structure (6) comprises a filter screen plate (601) and a communication circular groove (602) formed at the upper end of the filter screen plate (601).

2. A contouring corn planter according to claim 1, characterized in that: The compacting structure (3) comprises a first concave block (301) and a covering roller (302) movably arranged in the middle of the inner cavity of the first concave block (301).

3. A contouring corn planter according to claim 1 wherein: The ditching structure (4) comprises a second concave block (401) and a ditching roller (402) movably arranged in the middle of the inner cavity of the second concave block (401).

4. The contouring corn planter of claim 1, wherein: The containing structure (5) comprises a hollow inclined block (501) and an entering groove (502) formed in the middle of the upper end of the hollow inclined block (501), the inner wall of the entering groove (502) is fixedly provided with an intercepting plate (503), a threaded groove (504) is formed in the middle of one side of the upper end of the hollow inclined block (501), and guide grooves (509) are formed in the lower end of the inner wall of the hollow inclined block (501).

5. A contouring corn planter according to claim 4, wherein: The inner cavity of the hollow inclined block (501) is provided with a half-opening groove (505) in the middle of one side of the lower end, the inner cavity of the half-opening groove (505) is provided with a through groove (506), the lower end of one side of the intercepting plate (503) is fixedly provided with butt blocks (507), and the upper end of the butt blocks (507) is fixedly provided with threaded short rods (508).

6. The contouring corn planter of claim 1, wherein: The feeding structure (7) comprises a compacting disc (701) and a lifting block (702) fixedly arranged in the middle of the upper end of the compacting disc (701), and the lower end of the outer wall of the lifting block (702) is fixedly provided with guide blocks (703). The upper end of the lifting block (702) is fixedly provided with a bearing (704), the inner cavity of the bearing (704) is fixedly provided with a threaded long rod (705), and the lower end of the compacting disc (701) is fixedly provided with a dome-shaped cone (706).

Citation Information

Patent Citations

  • Agricultural corn planter

    CN219938917U